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author | Huacai Chen <chenhuacai@loongson.cn> | 2023-11-01 10:55:00 +0800 |
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committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-11-01 10:55:00 +0800 |
commit | a6bdc082ad1c91d389a6ba0c7a1945818f732114 (patch) | |
tree | fa630701d5d2a8bc1ab8c4abf759663bbb81aeeb /tools/testing | |
parent | ffc253263a1375a65fa6c9f62a893e9767fbebfa (diff) | |
parent | 99c9991f4e5d77328187187d0c921a3b62bfa998 (diff) | |
download | lwn-a6bdc082ad1c91d389a6ba0c7a1945818f732114.tar.gz lwn-a6bdc082ad1c91d389a6ba0c7a1945818f732114.zip |
Merge 'bpf-next 2023-10-16' into loongarch-next
LoongArch architecture changes for 6.7 (BPF CPU v4 support) depend on
the bpf changes to fix conflictions in selftests and work, so merge them
to create a base.
Diffstat (limited to 'tools/testing')
99 files changed, 6359 insertions, 1704 deletions
diff --git a/tools/testing/selftests/bpf/DENYLIST.aarch64 b/tools/testing/selftests/bpf/DENYLIST.aarch64 index 3babaf3eee5c..5c2cc7e8c5d0 100644 --- a/tools/testing/selftests/bpf/DENYLIST.aarch64 +++ b/tools/testing/selftests/bpf/DENYLIST.aarch64 @@ -1,5 +1,6 @@ bpf_cookie/multi_kprobe_attach_api # kprobe_multi_link_api_subtest:FAIL:fentry_raw_skel_load unexpected error: -3 bpf_cookie/multi_kprobe_link_api # kprobe_multi_link_api_subtest:FAIL:fentry_raw_skel_load unexpected error: -3 +exceptions # JIT does not support calling kfunc bpf_throw: -524 fexit_sleep # The test never returns. The remaining tests cannot start. kprobe_multi_bench_attach # needs CONFIG_FPROBE kprobe_multi_test # needs CONFIG_FPROBE @@ -9,3 +10,4 @@ fexit_test/fexit_many_args # fexit_many_args:FAIL:fexit_ma fill_link_info/kprobe_multi_link_info # bpf_program__attach_kprobe_multi_opts unexpected error: -95 fill_link_info/kretprobe_multi_link_info # bpf_program__attach_kprobe_multi_opts unexpected error: -95 fill_link_info/kprobe_multi_invalid_ubuff # bpf_program__attach_kprobe_multi_opts unexpected error: -95 +missed/kprobe_recursion # missed_kprobe_recursion__attach unexpected error: -95 (errno 95) diff --git a/tools/testing/selftests/bpf/DENYLIST.s390x b/tools/testing/selftests/bpf/DENYLIST.s390x index 5061d9e24c16..1a63996c0304 100644 --- a/tools/testing/selftests/bpf/DENYLIST.s390x +++ b/tools/testing/selftests/bpf/DENYLIST.s390x @@ -1,29 +1,5 @@ # TEMPORARY # Alphabetical order -bloom_filter_map # failed to find kernel BTF type ID of '__x64_sys_getpgid': -3 (?) -bpf_cookie # failed to open_and_load program: -524 (trampoline) -bpf_loop # attaches to __x64_sys_nanosleep -cgrp_local_storage # prog_attach unexpected error: -524 (trampoline) -dynptr/test_dynptr_skb_data -dynptr/test_skb_readonly -fexit_sleep # fexit_skel_load fexit skeleton failed (trampoline) +exceptions # JIT does not support calling kfunc bpf_throw (exceptions) get_stack_raw_tp # user_stack corrupted user stack (no backchain userspace) -iters/testmod_seq* # s390x doesn't support kfuncs in modules yet -kprobe_multi_bench_attach # bpf_program__attach_kprobe_multi_opts unexpected error: -95 -kprobe_multi_test # relies on fentry -ksyms_btf/weak_ksyms* # test_ksyms_weak__open_and_load unexpected error: -22 (kfunc) -ksyms_module # test_ksyms_module__open_and_load unexpected error: -9 (?) -ksyms_module_libbpf # JIT does not support calling kernel function (kfunc) -ksyms_module_lskel # test_ksyms_module_lskel__open_and_load unexpected error: -9 (?) -module_attach # skel_attach skeleton attach failed: -524 (trampoline) -ringbuf # skel_load skeleton load failed (?) stacktrace_build_id # compare_map_keys stackid_hmap vs. stackmap err -2 errno 2 (?) -test_lsm # attach unexpected error: -524 (trampoline) -trace_printk # trace_printk__load unexpected error: -2 (errno 2) (?) -trace_vprintk # trace_vprintk__open_and_load unexpected error: -9 (?) -unpriv_bpf_disabled # fentry -user_ringbuf # failed to find kernel BTF type ID of '__s390x_sys_prctl': -3 (?) -verif_stats # trace_vprintk__open_and_load unexpected error: -9 (?) -xdp_bonding # failed to auto-attach program 'trace_on_entry': -524 (trampoline) -xdp_metadata # JIT does not support calling kernel function (kfunc) -test_task_under_cgroup # JIT does not support calling kernel function (kfunc) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index caede9b574cb..4225f975fce3 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -27,7 +27,11 @@ endif BPF_GCC ?= $(shell command -v bpf-gcc;) SAN_CFLAGS ?= SAN_LDFLAGS ?= $(SAN_CFLAGS) -CFLAGS += -g -O0 -rdynamic -Wall -Werror $(GENFLAGS) $(SAN_CFLAGS) \ +RELEASE ?= +OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0) +CFLAGS += -g $(OPT_FLAGS) -rdynamic \ + -Wall -Werror \ + $(GENFLAGS) $(SAN_CFLAGS) \ -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT) LDFLAGS += $(SAN_LDFLAGS) @@ -104,7 +108,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \ xdp_features -TEST_GEN_FILES += liburandom_read.so urandom_read sign-file +TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi # Emit succinct information message describing current building step # $1 - generic step name (e.g., CC, LINK, etc); @@ -188,7 +192,7 @@ $(OUTPUT)/%:%.c $(Q)$(LINK.c) $^ $(LDLIBS) -o $@ # LLVM's ld.lld doesn't support all the architectures, so use it only on x86 -ifeq ($(SRCARCH),x86) +ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv)) LLD := lld else LLD := ld @@ -196,17 +200,20 @@ endif # Filter out -static for liburandom_read.so and its dependent targets so that static builds # do not fail. Static builds leave urandom_read relying on system-wide shared libraries. -$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c +$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map $(call msg,LIB,,$@) - $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ - $^ $(filter-out -static,$(LDLIBS)) \ + $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ + $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \ + $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \ -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ + -Wl,--version-script=liburandom_read.map \ -fPIC -shared -o $@ $(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so $(call msg,BINARY,,$@) - $(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ - -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ + $(Q)$(CLANG) $(CLANG_TARGET_ARCH) \ + $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \ + -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \ -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \ -Wl,-rpath=. -o $@ @@ -238,7 +245,7 @@ $(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL) $(RUNQSLOWER_OUTPUT) BPFTOOL_OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ BPFOBJ_OUTPUT=$(BUILD_DIR)/libbpf \ BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) \ - EXTRA_CFLAGS='-g -O0 $(SAN_CFLAGS)' \ + EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ EXTRA_LDFLAGS='$(SAN_LDFLAGS)' && \ cp $(RUNQSLOWER_OUTPUT)runqslower $@ @@ -276,7 +283,7 @@ $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" \ - EXTRA_CFLAGS='-g -O0' \ + EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ OUTPUT=$(HOST_BUILD_DIR)/bpftool/ \ LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/ \ @@ -287,7 +294,7 @@ $(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ $(BPFOBJ) | $(BUILD_DIR)/bpftool $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) \ - EXTRA_CFLAGS='-g -O0' \ + EXTRA_CFLAGS='-g $(OPT_FLAGS)' \ OUTPUT=$(BUILD_DIR)/bpftool/ \ LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/ \ LIBBPF_DESTDIR=$(SCRATCH_DIR)/ \ @@ -310,7 +317,7 @@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ $(APIDIR)/linux/bpf.h \ | $(BUILD_DIR)/libbpf $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ - EXTRA_CFLAGS='-g -O0 $(SAN_CFLAGS)' \ + EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)' \ EXTRA_LDFLAGS='$(SAN_LDFLAGS)' \ DESTDIR=$(SCRATCH_DIR) prefix= all install_headers @@ -319,7 +326,7 @@ $(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \ $(APIDIR)/linux/bpf.h \ | $(HOST_BUILD_DIR)/libbpf $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) \ - EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE= \ + EXTRA_CFLAGS='-g $(OPT_FLAGS)' ARCH= CROSS_COMPILE= \ OUTPUT=$(HOST_BUILD_DIR)/libbpf/ \ CC="$(HOSTCC)" LD="$(HOSTLD)" \ DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers @@ -640,7 +647,9 @@ $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) $(call msg,BINARY,,$@) $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ -$(OUTPUT)/xskxceiver: xskxceiver.c xskxceiver.h $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) +# Include find_bit.c to compile xskxceiver. +EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c +$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) $(call msg,BINARY,,$@) $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h index 209811b1993a..2c8cb3f61529 100644 --- a/tools/testing/selftests/bpf/bpf_experimental.h +++ b/tools/testing/selftests/bpf/bpf_experimental.h @@ -131,4 +131,331 @@ extern int bpf_rbtree_add_impl(struct bpf_rb_root *root, struct bpf_rb_node *nod */ extern struct bpf_rb_node *bpf_rbtree_first(struct bpf_rb_root *root) __ksym; +/* Description + * Allocates a percpu object of the type represented by 'local_type_id' in + * program BTF. User may use the bpf_core_type_id_local macro to pass the + * type ID of a struct in program BTF. + * + * The 'local_type_id' parameter must be a known constant. + * The 'meta' parameter is rewritten by the verifier, no need for BPF + * program to set it. + * Returns + * A pointer to a percpu object of the type corresponding to the passed in + * 'local_type_id', or NULL on failure. + */ +extern void *bpf_percpu_obj_new_impl(__u64 local_type_id, void *meta) __ksym; + +/* Convenience macro to wrap over bpf_percpu_obj_new_impl */ +#define bpf_percpu_obj_new(type) ((type __percpu_kptr *)bpf_percpu_obj_new_impl(bpf_core_type_id_local(type), NULL)) + +/* Description + * Free an allocated percpu object. All fields of the object that require + * destruction will be destructed before the storage is freed. + * + * The 'meta' parameter is rewritten by the verifier, no need for BPF + * program to set it. + * Returns + * Void. + */ +extern void bpf_percpu_obj_drop_impl(void *kptr, void *meta) __ksym; + +struct bpf_iter_task_vma; + +extern int bpf_iter_task_vma_new(struct bpf_iter_task_vma *it, + struct task_struct *task, + unsigned long addr) __ksym; +extern struct vm_area_struct *bpf_iter_task_vma_next(struct bpf_iter_task_vma *it) __ksym; +extern void bpf_iter_task_vma_destroy(struct bpf_iter_task_vma *it) __ksym; + +/* Convenience macro to wrap over bpf_obj_drop_impl */ +#define bpf_percpu_obj_drop(kptr) bpf_percpu_obj_drop_impl(kptr, NULL) + +/* Description + * Throw a BPF exception from the program, immediately terminating its + * execution and unwinding the stack. The supplied 'cookie' parameter + * will be the return value of the program when an exception is thrown, + * and the default exception callback is used. Otherwise, if an exception + * callback is set using the '__exception_cb(callback)' declaration tag + * on the main program, the 'cookie' parameter will be the callback's only + * input argument. + * + * Thus, in case of default exception callback, 'cookie' is subjected to + * constraints on the program's return value (as with R0 on exit). + * Otherwise, the return value of the marked exception callback will be + * subjected to the same checks. + * + * Note that throwing an exception with lingering resources (locks, + * references, etc.) will lead to a verification error. + * + * Note that callbacks *cannot* call this helper. + * Returns + * Never. + * Throws + * An exception with the specified 'cookie' value. + */ +extern void bpf_throw(u64 cookie) __ksym; + +/* This macro must be used to mark the exception callback corresponding to the + * main program. For example: + * + * int exception_cb(u64 cookie) { + * return cookie; + * } + * + * SEC("tc") + * __exception_cb(exception_cb) + * int main_prog(struct __sk_buff *ctx) { + * ... + * return TC_ACT_OK; + * } + * + * Here, exception callback for the main program will be 'exception_cb'. Note + * that this attribute can only be used once, and multiple exception callbacks + * specified for the main program will lead to verification error. + */ +#define __exception_cb(name) __attribute__((btf_decl_tag("exception_callback:" #name))) + +#define __bpf_assert_signed(x) _Generic((x), \ + unsigned long: 0, \ + unsigned long long: 0, \ + signed long: 1, \ + signed long long: 1 \ +) + +#define __bpf_assert_check(LHS, op, RHS) \ + _Static_assert(sizeof(&(LHS)), "1st argument must be an lvalue expression"); \ + _Static_assert(sizeof(LHS) == 8, "Only 8-byte integers are supported\n"); \ + _Static_assert(__builtin_constant_p(__bpf_assert_signed(LHS)), "internal static assert"); \ + _Static_assert(__builtin_constant_p((RHS)), "2nd argument must be a constant expression") + +#define __bpf_assert(LHS, op, cons, RHS, VAL) \ + ({ \ + (void)bpf_throw; \ + asm volatile ("if %[lhs] " op " %[rhs] goto +2; r1 = %[value]; call bpf_throw" \ + : : [lhs] "r"(LHS), [rhs] cons(RHS), [value] "ri"(VAL) : ); \ + }) + +#define __bpf_assert_op_sign(LHS, op, cons, RHS, VAL, supp_sign) \ + ({ \ + __bpf_assert_check(LHS, op, RHS); \ + if (__bpf_assert_signed(LHS) && !(supp_sign)) \ + __bpf_assert(LHS, "s" #op, cons, RHS, VAL); \ + else \ + __bpf_assert(LHS, #op, cons, RHS, VAL); \ + }) + +#define __bpf_assert_op(LHS, op, RHS, VAL, supp_sign) \ + ({ \ + if (sizeof(typeof(RHS)) == 8) { \ + const typeof(RHS) rhs_var = (RHS); \ + __bpf_assert_op_sign(LHS, op, "r", rhs_var, VAL, supp_sign); \ + } else { \ + __bpf_assert_op_sign(LHS, op, "i", RHS, VAL, supp_sign); \ + } \ + }) + +/* Description + * Assert that a conditional expression is true. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert(cond) if (!(cond)) bpf_throw(0); + +/* Description + * Assert that a conditional expression is true. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_with(cond, value) if (!(cond)) bpf_throw(value); + +/* Description + * Assert that LHS is equal to RHS. This statement updates the known value + * of LHS during verification. Note that RHS must be a constant value, and + * must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert_eq(LHS, RHS) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, ==, RHS, 0, true); \ + }) + +/* Description + * Assert that LHS is equal to RHS. This statement updates the known value + * of LHS during verification. Note that RHS must be a constant value, and + * must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_eq_with(LHS, RHS, value) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, ==, RHS, value, true); \ + }) + +/* Description + * Assert that LHS is less than RHS. This statement updates the known + * bounds of LHS during verification. Note that RHS must be a constant + * value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert_lt(LHS, RHS) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, <, RHS, 0, false); \ + }) + +/* Description + * Assert that LHS is less than RHS. This statement updates the known + * bounds of LHS during verification. Note that RHS must be a constant + * value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_lt_with(LHS, RHS, value) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, <, RHS, value, false); \ + }) + +/* Description + * Assert that LHS is greater than RHS. This statement updates the known + * bounds of LHS during verification. Note that RHS must be a constant + * value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert_gt(LHS, RHS) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, >, RHS, 0, false); \ + }) + +/* Description + * Assert that LHS is greater than RHS. This statement updates the known + * bounds of LHS during verification. Note that RHS must be a constant + * value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_gt_with(LHS, RHS, value) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, >, RHS, value, false); \ + }) + +/* Description + * Assert that LHS is less than or equal to RHS. This statement updates the + * known bounds of LHS during verification. Note that RHS must be a + * constant value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert_le(LHS, RHS) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, <=, RHS, 0, false); \ + }) + +/* Description + * Assert that LHS is less than or equal to RHS. This statement updates the + * known bounds of LHS during verification. Note that RHS must be a + * constant value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_le_with(LHS, RHS, value) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, <=, RHS, value, false); \ + }) + +/* Description + * Assert that LHS is greater than or equal to RHS. This statement updates + * the known bounds of LHS during verification. Note that RHS must be a + * constant value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert_ge(LHS, RHS) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, >=, RHS, 0, false); \ + }) + +/* Description + * Assert that LHS is greater than or equal to RHS. This statement updates + * the known bounds of LHS during verification. Note that RHS must be a + * constant value, and must fit within the data type of LHS. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_ge_with(LHS, RHS, value) \ + ({ \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, >=, RHS, value, false); \ + }) + +/* Description + * Assert that LHS is in the range [BEG, END] (inclusive of both). This + * statement updates the known bounds of LHS during verification. Note + * that both BEG and END must be constant values, and must fit within the + * data type of LHS. + * Returns + * Void. + * Throws + * An exception with the value zero when the assertion fails. + */ +#define bpf_assert_range(LHS, BEG, END) \ + ({ \ + _Static_assert(BEG <= END, "BEG must be <= END"); \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, >=, BEG, 0, false); \ + __bpf_assert_op(LHS, <=, END, 0, false); \ + }) + +/* Description + * Assert that LHS is in the range [BEG, END] (inclusive of both). This + * statement updates the known bounds of LHS during verification. Note + * that both BEG and END must be constant values, and must fit within the + * data type of LHS. + * Returns + * Void. + * Throws + * An exception with the specified value when the assertion fails. + */ +#define bpf_assert_range_with(LHS, BEG, END, value) \ + ({ \ + _Static_assert(BEG <= END, "BEG must be <= END"); \ + barrier_var(LHS); \ + __bpf_assert_op(LHS, >=, BEG, value, false); \ + __bpf_assert_op(LHS, <=, END, value, false); \ + }) + #endif diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h index 642dda0e758a..5ca68ff0b59f 100644 --- a/tools/testing/selftests/bpf/bpf_kfuncs.h +++ b/tools/testing/selftests/bpf/bpf_kfuncs.h @@ -1,6 +1,8 @@ #ifndef __BPF_KFUNCS__ #define __BPF_KFUNCS__ +struct bpf_sock_addr_kern; + /* Description * Initializes an skb-type dynptr * Returns @@ -41,4 +43,16 @@ extern bool bpf_dynptr_is_rdonly(const struct bpf_dynptr *ptr) __ksym; extern __u32 bpf_dynptr_size(const struct bpf_dynptr *ptr) __ksym; extern int bpf_dynptr_clone(const struct bpf_dynptr *ptr, struct bpf_dynptr *clone__init) __ksym; +/* Description + * Modify the address of a AF_UNIX sockaddr. + * Returns__bpf_kfunc + * -EINVAL if the address size is too big or, 0 if the sockaddr was successfully modified. + */ +extern int bpf_sock_addr_set_sun_path(struct bpf_sock_addr_kern *sa_kern, + const __u8 *sun_path, __u32 sun_path__sz) __ksym; + +void *bpf_cast_to_kern_ctx(void *) __ksym; + +void *bpf_rdonly_cast(void *obj, __u32 btf_id) __ksym; + #endif diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c index cefc5dd72573..a5e246f7b202 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c @@ -138,6 +138,10 @@ __bpf_kfunc void bpf_iter_testmod_seq_destroy(struct bpf_iter_testmod_seq *it) it->cnt = 0; } +__bpf_kfunc void bpf_kfunc_common_test(void) +{ +} + struct bpf_testmod_btf_type_tag_1 { int a; }; @@ -343,6 +347,7 @@ BTF_SET8_START(bpf_testmod_common_kfunc_ids) BTF_ID_FLAGS(func, bpf_iter_testmod_seq_new, KF_ITER_NEW) BTF_ID_FLAGS(func, bpf_iter_testmod_seq_next, KF_ITER_NEXT | KF_RET_NULL) BTF_ID_FLAGS(func, bpf_iter_testmod_seq_destroy, KF_ITER_DESTROY) +BTF_ID_FLAGS(func, bpf_kfunc_common_test) BTF_SET8_END(bpf_testmod_common_kfunc_ids) static const struct btf_kfunc_id_set bpf_testmod_common_kfunc_set = { diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h index f5c5b1375c24..7c664dd61059 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod_kfunc.h @@ -104,4 +104,6 @@ void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p); void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p); void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p); void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len); + +void bpf_kfunc_common_test(void) __ksym; #endif /* _BPF_TESTMOD_KFUNC_H */ diff --git a/tools/testing/selftests/bpf/cgroup_helpers.c b/tools/testing/selftests/bpf/cgroup_helpers.c index 2caee8423ee0..5b1da2a32ea7 100644 --- a/tools/testing/selftests/bpf/cgroup_helpers.c +++ b/tools/testing/selftests/bpf/cgroup_helpers.c @@ -49,6 +49,10 @@ snprintf(buf, sizeof(buf), "%s%s", NETCLS_MOUNT_PATH, \ CGROUP_WORK_DIR) +static __thread bool cgroup_workdir_mounted; + +static void __cleanup_cgroup_environment(void); + static int __enable_controllers(const char *cgroup_path, const char *controllers) { char path[PATH_MAX + 1]; @@ -195,6 +199,11 @@ int setup_cgroup_environment(void) format_cgroup_path(cgroup_workdir, ""); + if (mkdir(CGROUP_MOUNT_PATH, 0777) && errno != EEXIST) { + log_err("mkdir mount"); + return 1; + } + if (unshare(CLONE_NEWNS)) { log_err("unshare"); return 1; @@ -209,9 +218,10 @@ int setup_cgroup_environment(void) log_err("mount cgroup2"); return 1; } + cgroup_workdir_mounted = true; /* Cleanup existing failed runs, now that the environment is setup */ - cleanup_cgroup_environment(); + __cleanup_cgroup_environment(); if (mkdir(cgroup_workdir, 0777) && errno != EEXIST) { log_err("mkdir cgroup work dir"); @@ -306,10 +316,25 @@ int join_parent_cgroup(const char *relative_path) } /** + * __cleanup_cgroup_environment() - Delete temporary cgroups + * + * This is a helper for cleanup_cgroup_environment() that is responsible for + * deletion of all temporary cgroups that have been created during the test. + */ +static void __cleanup_cgroup_environment(void) +{ + char cgroup_workdir[PATH_MAX + 1]; + + format_cgroup_path(cgroup_workdir, ""); + join_cgroup_from_top(CGROUP_MOUNT_PATH); + nftw(cgroup_workdir, nftwfunc, WALK_FD_LIMIT, FTW_DEPTH | FTW_MOUNT); +} + +/** * cleanup_cgroup_environment() - Cleanup Cgroup Testing Environment * * This is an idempotent function to delete all temporary cgroups that - * have been created during the test, including the cgroup testing work + * have been created during the test and unmount the cgroup testing work * directory. * * At call time, it moves the calling process to the root cgroup, and then @@ -320,11 +345,10 @@ int join_parent_cgroup(const char *relative_path) */ void cleanup_cgroup_environment(void) { - char cgroup_workdir[PATH_MAX + 1]; - - format_cgroup_path(cgroup_workdir, ""); - join_cgroup_from_top(CGROUP_MOUNT_PATH); - nftw(cgroup_workdir, nftwfunc, WALK_FD_LIMIT, FTW_DEPTH | FTW_MOUNT); + __cleanup_cgroup_environment(); + if (cgroup_workdir_mounted && umount(CGROUP_MOUNT_PATH)) + log_err("umount cgroup2"); + cgroup_workdir_mounted = false; } /** diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config index e41eb33b2704..02dd4409200e 100644 --- a/tools/testing/selftests/bpf/config +++ b/tools/testing/selftests/bpf/config @@ -84,3 +84,4 @@ CONFIG_USERFAULTFD=y CONFIG_VXLAN=y CONFIG_XDP_SOCKETS=y CONFIG_XFRM_INTERFACE=y +CONFIG_VSOCKETS=y diff --git a/tools/testing/selftests/bpf/liburandom_read.map b/tools/testing/selftests/bpf/liburandom_read.map new file mode 100644 index 000000000000..38a97a419a04 --- /dev/null +++ b/tools/testing/selftests/bpf/liburandom_read.map @@ -0,0 +1,15 @@ +LIBURANDOM_READ_1.0.0 { + global: + urandlib_api; + urandlib_api_sameoffset; + urandlib_read_without_sema; + urandlib_read_with_sema; + urandlib_read_with_sema_semaphore; + local: + *; +}; + +LIBURANDOM_READ_2.0.0 { + global: + urandlib_api; +} LIBURANDOM_READ_1.0.0; diff --git a/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c index 16f1671e4bde..66191ae9863c 100644 --- a/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c +++ b/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c @@ -33,11 +33,11 @@ static void create_inner_maps(enum bpf_map_type map_type, { int map_fd, map_index, ret; __u32 map_key = 0, map_id; - char map_name[15]; + char map_name[16]; for (map_index = 0; map_index < OUTER_MAP_ENTRIES; map_index++) { memset(map_name, 0, sizeof(map_name)); - sprintf(map_name, "inner_map_fd_%d", map_index); + snprintf(map_name, sizeof(map_name), "inner_map_fd_%d", map_index); map_fd = bpf_map_create(map_type, map_name, sizeof(__u32), sizeof(__u32), 1, NULL); CHECK(map_fd < 0, diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index da72a3a66230..6db27a9088e9 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -11,6 +11,7 @@ #include <arpa/inet.h> #include <sys/mount.h> #include <sys/stat.h> +#include <sys/un.h> #include <linux/err.h> #include <linux/in.h> @@ -257,6 +258,26 @@ static int connect_fd_to_addr(int fd, return 0; } +int connect_to_addr(const struct sockaddr_storage *addr, socklen_t addrlen, int type) +{ + int fd; + + fd = socket(addr->ss_family, type, 0); + if (fd < 0) { + log_err("Failed to create client socket"); + return -1; + } + + if (connect_fd_to_addr(fd, addr, addrlen, false)) + goto error_close; + + return fd; + +error_close: + save_errno_close(fd); + return -1; +} + static const struct network_helper_opts default_opts; int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts) @@ -380,6 +401,19 @@ int make_sockaddr(int family, const char *addr_str, __u16 port, if (len) *len = sizeof(*sin6); return 0; + } else if (family == AF_UNIX) { + /* Note that we always use abstract unix sockets to avoid having + * to clean up leftover files. + */ + struct sockaddr_un *sun = (void *)addr; + + memset(addr, 0, sizeof(*sun)); + sun->sun_family = family; + sun->sun_path[0] = 0; + strcpy(sun->sun_path + 1, addr_str); + if (len) + *len = offsetof(struct sockaddr_un, sun_path) + 1 + strlen(addr_str); + return 0; } return -1; } diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index 5eccc67d1a99..34f1200a781b 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -51,6 +51,7 @@ int *start_reuseport_server(int family, int type, const char *addr_str, __u16 port, int timeout_ms, unsigned int nr_listens); void free_fds(int *fds, unsigned int nr_close_fds); +int connect_to_addr(const struct sockaddr_storage *addr, socklen_t len, int type); int connect_to_fd(int server_fd, int timeout_ms); int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts); int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms); diff --git a/tools/testing/selftests/bpf/prog_tests/align.c b/tools/testing/selftests/bpf/prog_tests/align.c index b92770592563..465c1c3a3d3c 100644 --- a/tools/testing/selftests/bpf/prog_tests/align.c +++ b/tools/testing/selftests/bpf/prog_tests/align.c @@ -6,6 +6,7 @@ struct bpf_reg_match { unsigned int line; + const char *reg; const char *match; }; @@ -39,13 +40,13 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {0, "R1=ctx(off=0,imm=0)"}, - {0, "R10=fp0"}, - {0, "R3_w=2"}, - {1, "R3_w=4"}, - {2, "R3_w=8"}, - {3, "R3_w=16"}, - {4, "R3_w=32"}, + {0, "R1", "ctx(off=0,imm=0)"}, + {0, "R10", "fp0"}, + {0, "R3_w", "2"}, + {1, "R3_w", "4"}, + {2, "R3_w", "8"}, + {3, "R3_w", "16"}, + {4, "R3_w", "32"}, }, }, { @@ -67,19 +68,19 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {0, "R1=ctx(off=0,imm=0)"}, - {0, "R10=fp0"}, - {0, "R3_w=1"}, - {1, "R3_w=2"}, - {2, "R3_w=4"}, - {3, "R3_w=8"}, - {4, "R3_w=16"}, - {5, "R3_w=1"}, - {6, "R4_w=32"}, - {7, "R4_w=16"}, - {8, "R4_w=8"}, - {9, "R4_w=4"}, - {10, "R4_w=2"}, + {0, "R1", "ctx(off=0,imm=0)"}, + {0, "R10", "fp0"}, + {0, "R3_w", "1"}, + {1, "R3_w", "2"}, + {2, "R3_w", "4"}, + {3, "R3_w", "8"}, + {4, "R3_w", "16"}, + {5, "R3_w", "1"}, + {6, "R4_w", "32"}, + {7, "R4_w", "16"}, + {8, "R4_w", "8"}, + {9, "R4_w", "4"}, + {10, "R4_w", "2"}, }, }, { @@ -96,14 +97,14 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {0, "R1=ctx(off=0,imm=0)"}, - {0, "R10=fp0"}, - {0, "R3_w=4"}, - {1, "R3_w=8"}, - {2, "R3_w=10"}, - {3, "R4_w=8"}, - {4, "R4_w=12"}, - {5, "R4_w=14"}, + {0, "R1", "ctx(off=0,imm=0)"}, + {0, "R10", "fp0"}, + {0, "R3_w", "4"}, + {1, "R3_w", "8"}, + {2, "R3_w", "10"}, + {3, "R4_w", "8"}, + {4, "R4_w", "12"}, + {5, "R4_w", "14"}, }, }, { @@ -118,12 +119,12 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {0, "R1=ctx(off=0,imm=0)"}, - {0, "R10=fp0"}, - {0, "R3_w=7"}, - {1, "R3_w=7"}, - {2, "R3_w=14"}, - {3, "R3_w=56"}, + {0, "R1", "ctx(off=0,imm=0)"}, + {0, "R10", "fp0"}, + {0, "R3_w", "7"}, + {1, "R3_w", "7"}, + {2, "R3_w", "14"}, + {3, "R3_w", "56"}, }, }, @@ -161,19 +162,19 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {6, "R0_w=pkt(off=8,r=8,imm=0)"}, - {6, "R3_w=scalar(umax=255,var_off=(0x0; 0xff))"}, - {7, "R3_w=scalar(umax=510,var_off=(0x0; 0x1fe))"}, - {8, "R3_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, - {9, "R3_w=scalar(umax=2040,var_off=(0x0; 0x7f8))"}, - {10, "R3_w=scalar(umax=4080,var_off=(0x0; 0xff0))"}, - {12, "R3_w=pkt_end(off=0,imm=0)"}, - {17, "R4_w=scalar(umax=255,var_off=(0x0; 0xff))"}, - {18, "R4_w=scalar(umax=8160,var_off=(0x0; 0x1fe0))"}, - {19, "R4_w=scalar(umax=4080,var_off=(0x0; 0xff0))"}, - {20, "R4_w=scalar(umax=2040,var_off=(0x0; 0x7f8))"}, - {21, "R4_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, - {22, "R4_w=scalar(umax=510,var_off=(0x0; 0x1fe))"}, + {6, "R0_w", "pkt(off=8,r=8,imm=0)"}, + {6, "R3_w", "var_off=(0x0; 0xff)"}, + {7, "R3_w", "var_off=(0x0; 0x1fe)"}, + {8, "R3_w", "var_off=(0x0; 0x3fc)"}, + {9, "R3_w", "var_off=(0x0; 0x7f8)"}, + {10, "R3_w", "var_off=(0x0; 0xff0)"}, + {12, "R3_w", "pkt_end(off=0,imm=0)"}, + {17, "R4_w", "var_off=(0x0; 0xff)"}, + {18, "R4_w", "var_off=(0x0; 0x1fe0)"}, + {19, "R4_w", "var_off=(0x0; 0xff0)"}, + {20, "R4_w", "var_off=(0x0; 0x7f8)"}, + {21, "R4_w", "var_off=(0x0; 0x3fc)"}, + {22, "R4_w", "var_off=(0x0; 0x1fe)"}, }, }, { @@ -194,16 +195,16 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {6, "R3_w=scalar(umax=255,var_off=(0x0; 0xff))"}, - {7, "R4_w=scalar(id=1,umax=255,var_off=(0x0; 0xff))"}, - {8, "R4_w=scalar(umax=255,var_off=(0x0; 0xff))"}, - {9, "R4_w=scalar(id=1,umax=255,var_off=(0x0; 0xff))"}, - {10, "R4_w=scalar(umax=510,var_off=(0x0; 0x1fe))"}, - {11, "R4_w=scalar(id=1,umax=255,var_off=(0x0; 0xff))"}, - {12, "R4_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, - {13, "R4_w=scalar(id=1,umax=255,var_off=(0x0; 0xff))"}, - {14, "R4_w=scalar(umax=2040,var_off=(0x0; 0x7f8))"}, - {15, "R4_w=scalar(umax=4080,var_off=(0x0; 0xff0))"}, + {6, "R3_w", "var_off=(0x0; 0xff)"}, + {7, "R4_w", "var_off=(0x0; 0xff)"}, + {8, "R4_w", "var_off=(0x0; 0xff)"}, + {9, "R4_w", "var_off=(0x0; 0xff)"}, + {10, "R4_w", "var_off=(0x0; 0x1fe)"}, + {11, "R4_w", "var_off=(0x0; 0xff)"}, + {12, "R4_w", "var_off=(0x0; 0x3fc)"}, + {13, "R4_w", "var_off=(0x0; 0xff)"}, + {14, "R4_w", "var_off=(0x0; 0x7f8)"}, + {15, "R4_w", "var_off=(0x0; 0xff0)"}, }, }, { @@ -234,14 +235,14 @@ static struct bpf_align_test tests[] = { }, .prog_type = BPF_PROG_TYPE_SCHED_CLS, .matches = { - {2, "R5_w=pkt(off=0,r=0,imm=0)"}, - {4, "R5_w=pkt(off=14,r=0,imm=0)"}, - {5, "R4_w=pkt(off=14,r=0,imm=0)"}, - {9, "R2=pkt(off=0,r=18,imm=0)"}, - {10, "R5=pkt(off=14,r=18,imm=0)"}, - {10, "R4_w=scalar(umax=255,var_off=(0x0; 0xff))"}, - {13, "R4_w=scalar(umax=65535,var_off=(0x0; 0xffff))"}, - {14, "R4_w=scalar(umax=65535,var_off=(0x0; 0xffff))"}, + {2, "R5_w", "pkt(off=0,r=0,imm=0)"}, + {4, "R5_w", "pkt(off=14,r=0,imm=0)"}, + {5, "R4_w", "pkt(off=14,r=0,imm=0)"}, + {9, "R2", "pkt(off=0,r=18,imm=0)"}, + {10, "R5", "pkt(off=14,r=18,imm=0)"}, + {10, "R4_w", "var_off=(0x0; 0xff)"}, + {13, "R4_w", "var_off=(0x0; 0xffff)"}, + {14, "R4_w", "var_off=(0x0; 0xffff)"}, }, }, { @@ -298,20 +299,20 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {6, "R2_w=pkt(off=0,r=8,imm=0)"}, - {7, "R6_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, + {6, "R2_w", "pkt(off=0,r=8,imm=0)"}, + {7, "R6_w", "var_off=(0x0; 0x3fc)"}, /* Offset is added to packet pointer R5, resulting in * known fixed offset, and variable offset from R6. */ - {11, "R5_w=pkt(id=1,off=14,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, + {11, "R5_w", "pkt(id=1,off=14,"}, /* At the time the word size load is performed from R5, * it's total offset is NET_IP_ALIGN + reg->off (0) + * reg->aux_off (14) which is 16. Then the variable * offset is considered using reg->aux_off_align which * is 4 and meets the load's requirements. */ - {15, "R4=pkt(id=1,off=18,r=18,umax=1020,var_off=(0x0; 0x3fc))"}, - {15, "R5=pkt(id=1,off=14,r=18,umax=1020,var_off=(0x0; 0x3fc))"}, + {15, "R4", "var_off=(0x0; 0x3fc)"}, + {15, "R5", "var_off=(0x0; 0x3fc)"}, /* Variable offset is added to R5 packet pointer, * resulting in auxiliary alignment of 4. To avoid BPF * verifier's precision backtracking logging @@ -319,46 +320,46 @@ static struct bpf_align_test tests[] = { * instruction to validate R5 state. We also check * that R4 is what it should be in such case. */ - {18, "R4_w=pkt(id=2,off=0,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, - {18, "R5_w=pkt(id=2,off=0,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, + {18, "R4_w", "var_off=(0x0; 0x3fc)"}, + {18, "R5_w", "var_off=(0x0; 0x3fc)"}, /* Constant offset is added to R5, resulting in * reg->off of 14. */ - {19, "R5_w=pkt(id=2,off=14,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, + {19, "R5_w", "pkt(id=2,off=14,"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off * (14) which is 16. Then the variable offset is 4-byte * aligned, so the total offset is 4-byte aligned and * meets the load's requirements. */ - {24, "R4=pkt(id=2,off=18,r=18,umax=1020,var_off=(0x0; 0x3fc))"}, - {24, "R5=pkt(id=2,off=14,r=18,umax=1020,var_off=(0x0; 0x3fc))"}, + {24, "R4", "var_off=(0x0; 0x3fc)"}, + {24, "R5", "var_off=(0x0; 0x3fc)"}, /* Constant offset is added to R5 packet pointer, * resulting in reg->off value of 14. */ - {26, "R5_w=pkt(off=14,r=8"}, + {26, "R5_w", "pkt(off=14,r=8,"}, /* Variable offset is added to R5, resulting in a * variable offset of (4n). See comment for insn #18 * for R4 = R5 trick. */ - {28, "R4_w=pkt(id=3,off=14,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, - {28, "R5_w=pkt(id=3,off=14,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, + {28, "R4_w", "var_off=(0x0; 0x3fc)"}, + {28, "R5_w", "var_off=(0x0; 0x3fc)"}, /* Constant is added to R5 again, setting reg->off to 18. */ - {29, "R5_w=pkt(id=3,off=18,r=0,umax=1020,var_off=(0x0; 0x3fc))"}, + {29, "R5_w", "pkt(id=3,off=18,"}, /* And once more we add a variable; resulting var_off * is still (4n), fixed offset is not changed. * Also, we create a new reg->id. */ - {31, "R4_w=pkt(id=4,off=18,r=0,umax=2040,var_off=(0x0; 0x7fc)"}, - {31, "R5_w=pkt(id=4,off=18,r=0,umax=2040,var_off=(0x0; 0x7fc)"}, + {31, "R4_w", "var_off=(0x0; 0x7fc)"}, + {31, "R5_w", "var_off=(0x0; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (18) * which is 20. Then the variable offset is (4n), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {35, "R4=pkt(id=4,off=22,r=22,umax=2040,var_off=(0x0; 0x7fc)"}, - {35, "R5=pkt(id=4,off=18,r=22,umax=2040,var_off=(0x0; 0x7fc)"}, + {35, "R4", "var_off=(0x0; 0x7fc)"}, + {35, "R5", "var_off=(0x0; 0x7fc)"}, }, }, { @@ -396,36 +397,36 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {6, "R2_w=pkt(off=0,r=8,imm=0)"}, - {7, "R6_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, + {6, "R2_w", "pkt(off=0,r=8,imm=0)"}, + {7, "R6_w", "var_off=(0x0; 0x3fc)"}, /* Adding 14 makes R6 be (4n+2) */ - {8, "R6_w=scalar(umin=14,umax=1034,var_off=(0x2; 0x7fc))"}, + {8, "R6_w", "var_off=(0x2; 0x7fc)"}, /* Packet pointer has (4n+2) offset */ - {11, "R5_w=pkt(id=1,off=0,r=0,umin=14,umax=1034,var_off=(0x2; 0x7fc)"}, - {12, "R4=pkt(id=1,off=4,r=0,umin=14,umax=1034,var_off=(0x2; 0x7fc)"}, + {11, "R5_w", "var_off=(0x2; 0x7fc)"}, + {12, "R4", "var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {15, "R5=pkt(id=1,off=0,r=4,umin=14,umax=1034,var_off=(0x2; 0x7fc)"}, + {15, "R5", "var_off=(0x2; 0x7fc)"}, /* Newly read value in R6 was shifted left by 2, so has * known alignment of 4. */ - {17, "R6_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, + {17, "R6_w", "var_off=(0x0; 0x3fc)"}, /* Added (4n) to packet pointer's (4n+2) var_off, giving * another (4n+2). */ - {19, "R5_w=pkt(id=2,off=0,r=0,umin=14,umax=2054,var_off=(0x2; 0xffc)"}, - {20, "R4=pkt(id=2,off=4,r=0,umin=14,umax=2054,var_off=(0x2; 0xffc)"}, + {19, "R5_w", "var_off=(0x2; 0xffc)"}, + {20, "R4", "var_off=(0x2; 0xffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {23, "R5=pkt(id=2,off=0,r=4,umin=14,umax=2054,var_off=(0x2; 0xffc)"}, + {23, "R5", "var_off=(0x2; 0xffc)"}, }, }, { @@ -458,18 +459,18 @@ static struct bpf_align_test tests[] = { .prog_type = BPF_PROG_TYPE_SCHED_CLS, .result = REJECT, .matches = { - {3, "R5_w=pkt_end(off=0,imm=0)"}, + {3, "R5_w", "pkt_end(off=0,imm=0)"}, /* (ptr - ptr) << 2 == unknown, (4n) */ - {5, "R5_w=scalar(smax=9223372036854775804,umax=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"}, + {5, "R5_w", "var_off=(0x0; 0xfffffffffffffffc)"}, /* (4n) + 14 == (4n+2). We blow our bounds, because * the add could overflow. */ - {6, "R5_w=scalar(smin=-9223372036854775806,smax=9223372036854775806,umin=2,umax=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, + {6, "R5_w", "var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */ - {9, "R5=scalar(umin=2,umax=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, + {9, "R5", "var_off=(0x2; 0x7ffffffffffffffc)"}, /* packet pointer + nonnegative (4n+2) */ - {11, "R6_w=pkt(id=1,off=0,r=0,umin=2,umax=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, - {12, "R4_w=pkt(id=1,off=4,r=0,umin=2,umax=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, + {11, "R6_w", "var_off=(0x2; 0x7ffffffffffffffc)"}, + {12, "R4_w", "var_off=(0x2; 0x7ffffffffffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the @@ -477,7 +478,7 @@ static struct bpf_align_test tests[] = { * So we did not get a 'range' on R6, and the access * attempt will fail. */ - {15, "R6_w=pkt(id=1,off=0,r=0,umin=2,umax=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, + {15, "R6_w", "var_off=(0x2; 0x7ffffffffffffffc)"}, } }, { @@ -512,24 +513,23 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {6, "R2_w=pkt(off=0,r=8,imm=0)"}, - {8, "R6_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, + {6, "R2_w", "pkt(off=0,r=8,imm=0)"}, + {8, "R6_w", "var_off=(0x0; 0x3fc)"}, /* Adding 14 makes R6 be (4n+2) */ - {9, "R6_w=scalar(umin=14,umax=1034,var_off=(0x2; 0x7fc))"}, + {9, "R6_w", "var_off=(0x2; 0x7fc)"}, /* New unknown value in R7 is (4n) */ - {10, "R7_w=scalar(umax=1020,var_off=(0x0; 0x3fc))"}, + {10, "R7_w", "var_off=(0x0; 0x3fc)"}, /* Subtracting it from R6 blows our unsigned bounds */ - {11, "R6=scalar(smin=-1006,smax=1034,umin=2,umax=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, + {11, "R6", "var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>= 0 */ - {14, "R6=scalar(umin=2,umax=1034,var_off=(0x2; 0x7fc))"}, + {14, "R6", "var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {20, "R5=pkt(id=2,off=0,r=4,umin=2,umax=1034,var_off=(0x2; 0x7fc)"}, - + {20, "R5", "var_off=(0x2; 0x7fc)"}, }, }, { @@ -566,23 +566,23 @@ static struct bpf_align_test tests[] = { /* Calculated offset in R6 has unknown value, but known * alignment of 4. */ - {6, "R2_w=pkt(off=0,r=8,imm=0)"}, - {9, "R6_w=scalar(umax=60,var_off=(0x0; 0x3c))"}, + {6, "R2_w", "pkt(off=0,r=8,imm=0)"}, + {9, "R6_w", "var_off=(0x0; 0x3c)"}, /* Adding 14 makes R6 be (4n+2) */ - {10, "R6_w=scalar(umin=14,umax=74,var_off=(0x2; 0x7c))"}, + {10, "R6_w", "var_off=(0x2; 0x7c)"}, /* Subtracting from packet pointer overflows ubounds */ - {13, "R5_w=pkt(id=2,off=0,r=8,umin=18446744073709551542,umax=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c)"}, + {13, "R5_w", "var_off=(0xffffffffffffff82; 0x7c)"}, /* New unknown value in R7 is (4n), >= 76 */ - {14, "R7_w=scalar(umin=76,umax=1096,var_off=(0x0; 0x7fc))"}, + {14, "R7_w", "var_off=(0x0; 0x7fc)"}, /* Adding it to packet pointer gives nice bounds again */ - {16, "R5_w=pkt(id=3,off=0,r=0,umin=2,umax=1082,var_off=(0x2; 0x7fc)"}, + {16, "R5_w", "var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {20, "R5=pkt(id=3,off=0,r=4,umin=2,umax=1082,var_off=(0x2; 0x7fc)"}, + {20, "R5", "var_off=(0x2; 0x7fc)"}, }, }, }; @@ -635,6 +635,7 @@ static int do_test_single(struct bpf_align_test *test) line_ptr = strtok(bpf_vlog_copy, "\n"); for (i = 0; i < MAX_MATCHES; i++) { struct bpf_reg_match m = test->matches[i]; + const char *p; int tmp; if (!m.match) @@ -649,8 +650,8 @@ static int do_test_single(struct bpf_align_test *test) line_ptr = strtok(NULL, "\n"); } if (!line_ptr) { - printf("Failed to find line %u for match: %s\n", - m.line, m.match); + printf("Failed to find line %u for match: %s=%s\n", + m.line, m.reg, m.match); ret = 1; printf("%s", bpf_vlog); break; @@ -667,15 +668,15 @@ static int do_test_single(struct bpf_align_test *test) * 6: R0_w=pkt(off=8,r=8,imm=0) R1=ctx(off=0,imm=0) R2_w=pkt(off=0,r=8,imm=0) R3_w=pkt_end(off=0,imm=0) R10=fp0 * 6: (71) r3 = *(u8 *)(r2 +0) ; R2_w=pkt(off=0,r=8,imm=0) R3_w=scalar(umax=255,var_off=(0x0; 0xff)) */ - while (!strstr(line_ptr, m.match)) { + while (!(p = strstr(line_ptr, m.reg)) || !strstr(p, m.match)) { cur_line = -1; line_ptr = strtok(NULL, "\n"); sscanf(line_ptr ?: "", "%u: ", &cur_line); if (!line_ptr || cur_line != m.line) break; } - if (cur_line != m.line || !line_ptr || !strstr(line_ptr, m.match)) { - printf("Failed to find match %u: %s\n", m.line, m.match); + if (cur_line != m.line || !line_ptr || !(p = strstr(line_ptr, m.reg)) || !strstr(p, m.match)) { + printf("Failed to find match %u: %s=%s\n", m.line, m.reg, m.match); ret = 1; printf("%s", bpf_vlog); break; diff --git a/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c b/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c index d2d9e965eba5..053f4d6da77a 100644 --- a/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c +++ b/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c @@ -193,8 +193,8 @@ error: void test_bloom_filter_map(void) { - __u32 *rand_vals, nr_rand_vals; - struct bloom_filter_map *skel; + __u32 *rand_vals = NULL, nr_rand_vals = 0; + struct bloom_filter_map *skel = NULL; int err; test_fail_cases(); diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c index 1f02168103dd..41aba139b20b 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -10,7 +10,7 @@ #include "bpf_iter_task.skel.h" #include "bpf_iter_task_stack.skel.h" #include "bpf_iter_task_file.skel.h" -#include "bpf_iter_task_vma.skel.h" +#include "bpf_iter_task_vmas.skel.h" #include "bpf_iter_task_btf.skel.h" #include "bpf_iter_tcp4.skel.h" #include "bpf_iter_tcp6.skel.h" @@ -1399,19 +1399,19 @@ static void str_strip_first_line(char *str) static void test_task_vma_common(struct bpf_iter_attach_opts *opts) { int err, iter_fd = -1, proc_maps_fd = -1; - struct bpf_iter_task_vma *skel; + struct bpf_iter_task_vmas *skel; int len, read_size = 4; char maps_path[64]; - skel = bpf_iter_task_vma__open(); - if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vma__open")) + skel = bpf_iter_task_vmas__open(); + if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vmas__open")) return; skel->bss->pid = getpid(); skel->bss->one_task = opts ? 1 : 0; - err = bpf_iter_task_vma__load(skel); - if (!ASSERT_OK(err, "bpf_iter_task_vma__load")) + err = bpf_iter_task_vmas__load(skel); + if (!ASSERT_OK(err, "bpf_iter_task_vmas__load")) goto out; skel->links.proc_maps = bpf_program__attach_iter( @@ -1462,25 +1462,25 @@ static void test_task_vma_common(struct bpf_iter_attach_opts *opts) out: close(proc_maps_fd); close(iter_fd); - bpf_iter_task_vma__destroy(skel); + bpf_iter_task_vmas__destroy(skel); } static void test_task_vma_dead_task(void) { - struct bpf_iter_task_vma *skel; + struct bpf_iter_task_vmas *skel; int wstatus, child_pid = -1; time_t start_tm, cur_tm; int err, iter_fd = -1; int wait_sec = 3; - skel = bpf_iter_task_vma__open(); - if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vma__open")) + skel = bpf_iter_task_vmas__open(); + if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vmas__open")) return; skel->bss->pid = getpid(); - err = bpf_iter_task_vma__load(skel); - if (!ASSERT_OK(err, "bpf_iter_task_vma__load")) + err = bpf_iter_task_vmas__load(skel); + if (!ASSERT_OK(err, "bpf_iter_task_vmas__load")) goto out; skel->links.proc_maps = bpf_program__attach_iter( @@ -1533,7 +1533,7 @@ static void test_task_vma_dead_task(void) out: waitpid(child_pid, &wstatus, 0); close(iter_fd); - bpf_iter_task_vma__destroy(skel); + bpf_iter_task_vmas__destroy(skel); } void test_bpf_sockmap_map_iter_fd(void) diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c index 4e0cdb593318..92d51f377fe5 100644 --- a/tools/testing/selftests/bpf/prog_tests/btf.c +++ b/tools/testing/selftests/bpf/prog_tests/btf.c @@ -7296,7 +7296,7 @@ static struct btf_dedup_test dedup_tests[] = { BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), - BTF_FUNC_ENC(NAME_NTH(4), 2), /* [4] */ + BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ /* tag -> t */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [6] */ @@ -7317,7 +7317,7 @@ static struct btf_dedup_test dedup_tests[] = { BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1), BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1), - BTF_FUNC_ENC(NAME_NTH(4), 2), /* [4] */ + BTF_FUNC_ENC(NAME_NTH(4), 3), /* [4] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1), /* [5] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1), /* [6] */ BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1), /* [7] */ diff --git a/tools/testing/selftests/bpf/prog_tests/connect_ping.c b/tools/testing/selftests/bpf/prog_tests/connect_ping.c index 289218c2216c..40fe571f2fe7 100644 --- a/tools/testing/selftests/bpf/prog_tests/connect_ping.c +++ b/tools/testing/selftests/bpf/prog_tests/connect_ping.c @@ -28,9 +28,9 @@ static void subtest(int cgroup_fd, struct connect_ping *skel, .sin6_family = AF_INET6, .sin6_addr = IN6ADDR_LOOPBACK_INIT, }; - struct sockaddr *sa; + struct sockaddr *sa = NULL; socklen_t sa_len; - int protocol; + int protocol = -1; int sock_fd; switch (family) { diff --git a/tools/testing/selftests/bpf/prog_tests/exceptions.c b/tools/testing/selftests/bpf/prog_tests/exceptions.c new file mode 100644 index 000000000000..516f4a13013c --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/exceptions.c @@ -0,0 +1,409 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include <network_helpers.h> + +#include "exceptions.skel.h" +#include "exceptions_ext.skel.h" +#include "exceptions_fail.skel.h" +#include "exceptions_assert.skel.h" + +static char log_buf[1024 * 1024]; + +static void test_exceptions_failure(void) +{ + RUN_TESTS(exceptions_fail); +} + +static void test_exceptions_success(void) +{ + LIBBPF_OPTS(bpf_test_run_opts, ropts, + .data_in = &pkt_v4, + .data_size_in = sizeof(pkt_v4), + .repeat = 1, + ); + struct exceptions_ext *eskel = NULL; + struct exceptions *skel; + int ret; + + skel = exceptions__open(); + if (!ASSERT_OK_PTR(skel, "exceptions__open")) + return; + + ret = exceptions__load(skel); + if (!ASSERT_OK(ret, "exceptions__load")) + goto done; + + if (!ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.jmp_table), &(int){0}, + &(int){bpf_program__fd(skel->progs.exception_tail_call_target)}, BPF_ANY), + "bpf_map_update_elem jmp_table")) + goto done; + +#define RUN_SUCCESS(_prog, return_val) \ + if (!test__start_subtest(#_prog)) goto _prog##_##return_val; \ + ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs._prog), &ropts); \ + ASSERT_OK(ret, #_prog " prog run ret"); \ + ASSERT_EQ(ropts.retval, return_val, #_prog " prog run retval"); \ + _prog##_##return_val: + + RUN_SUCCESS(exception_throw_always_1, 64); + RUN_SUCCESS(exception_throw_always_2, 32); + RUN_SUCCESS(exception_throw_unwind_1, 16); + RUN_SUCCESS(exception_throw_unwind_2, 32); + RUN_SUCCESS(exception_throw_default, 0); + RUN_SUCCESS(exception_throw_default_value, 5); + RUN_SUCCESS(exception_tail_call, 24); + RUN_SUCCESS(exception_ext, 0); + RUN_SUCCESS(exception_ext_mod_cb_runtime, 35); + RUN_SUCCESS(exception_throw_subprog, 1); + RUN_SUCCESS(exception_assert_nz_gfunc, 1); + RUN_SUCCESS(exception_assert_zero_gfunc, 1); + RUN_SUCCESS(exception_assert_neg_gfunc, 1); + RUN_SUCCESS(exception_assert_pos_gfunc, 1); + RUN_SUCCESS(exception_assert_negeq_gfunc, 1); + RUN_SUCCESS(exception_assert_poseq_gfunc, 1); + RUN_SUCCESS(exception_assert_nz_gfunc_with, 1); + RUN_SUCCESS(exception_assert_zero_gfunc_with, 1); + RUN_SUCCESS(exception_assert_neg_gfunc_with, 1); + RUN_SUCCESS(exception_assert_pos_gfunc_with, 1); + RUN_SUCCESS(exception_assert_negeq_gfunc_with, 1); + RUN_SUCCESS(exception_assert_poseq_gfunc_with, 1); + RUN_SUCCESS(exception_bad_assert_nz_gfunc, 0); + RUN_SUCCESS(exception_bad_assert_zero_gfunc, 0); + RUN_SUCCESS(exception_bad_assert_neg_gfunc, 0); + RUN_SUCCESS(exception_bad_assert_pos_gfunc, 0); + RUN_SUCCESS(exception_bad_assert_negeq_gfunc, 0); + RUN_SUCCESS(exception_bad_assert_poseq_gfunc, 0); + RUN_SUCCESS(exception_bad_assert_nz_gfunc_with, 100); + RUN_SUCCESS(exception_bad_assert_zero_gfunc_with, 105); + RUN_SUCCESS(exception_bad_assert_neg_gfunc_with, 200); + RUN_SUCCESS(exception_bad_assert_pos_gfunc_with, 0); + RUN_SUCCESS(exception_bad_assert_negeq_gfunc_with, 101); + RUN_SUCCESS(exception_bad_assert_poseq_gfunc_with, 99); + RUN_SUCCESS(exception_assert_range, 1); + RUN_SUCCESS(exception_assert_range_with, 1); + RUN_SUCCESS(exception_bad_assert_range, 0); + RUN_SUCCESS(exception_bad_assert_range_with, 10); + +#define RUN_EXT(load_ret, attach_err, expr, msg, after_link) \ + { \ + LIBBPF_OPTS(bpf_object_open_opts, o, .kernel_log_buf = log_buf, \ + .kernel_log_size = sizeof(log_buf), \ + .kernel_log_level = 2); \ + exceptions_ext__destroy(eskel); \ + eskel = exceptions_ext__open_opts(&o); \ + struct bpf_program *prog = NULL; \ + struct bpf_link *link = NULL; \ + if (!ASSERT_OK_PTR(eskel, "exceptions_ext__open")) \ + goto done; \ + (expr); \ + ASSERT_OK_PTR(bpf_program__name(prog), bpf_program__name(prog)); \ + if (!ASSERT_EQ(exceptions_ext__load(eskel), load_ret, \ + "exceptions_ext__load")) { \ + printf("%s\n", log_buf); \ + goto done; \ + } \ + if (load_ret != 0) { \ + if (!ASSERT_OK_PTR(strstr(log_buf, msg), "strstr")) { \ + printf("%s\n", log_buf); \ + goto done; \ + } \ + } \ + if (!load_ret && attach_err) { \ + if (!ASSERT_ERR_PTR(link = bpf_program__attach(prog), "attach err")) \ + goto done; \ + } else if (!load_ret) { \ + if (!ASSERT_OK_PTR(link = bpf_program__attach(prog), "attach ok")) \ + goto done; \ + (void)(after_link); \ + bpf_link__destroy(link); \ + } \ + } + + if (test__start_subtest("non-throwing fentry -> exception_cb")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.pfentry; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime), + "exception_cb_mod"), "set_attach_target")) + goto done; + }), "FENTRY/FEXIT programs cannot attach to exception callback", 0); + + if (test__start_subtest("throwing fentry -> exception_cb")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.throwing_fentry; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime), + "exception_cb_mod"), "set_attach_target")) + goto done; + }), "FENTRY/FEXIT programs cannot attach to exception callback", 0); + + if (test__start_subtest("non-throwing fexit -> exception_cb")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.pfexit; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime), + "exception_cb_mod"), "set_attach_target")) + goto done; + }), "FENTRY/FEXIT programs cannot attach to exception callback", 0); + + if (test__start_subtest("throwing fexit -> exception_cb")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.throwing_fexit; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime), + "exception_cb_mod"), "set_attach_target")) + goto done; + }), "FENTRY/FEXIT programs cannot attach to exception callback", 0); + + if (test__start_subtest("throwing extension (with custom cb) -> exception_cb")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.throwing_exception_cb_extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime), + "exception_cb_mod"), "set_attach_target")) + goto done; + }), "Extension programs cannot attach to exception callback", 0); + + if (test__start_subtest("throwing extension -> global func in exception_cb")) + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_exception_cb_extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime), + "exception_cb_mod_global"), "set_attach_target")) + goto done; + }), "", ({ RUN_SUCCESS(exception_ext_mod_cb_runtime, 131); })); + + if (test__start_subtest("throwing extension (with custom cb) -> global func in exception_cb")) + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_ext), + "exception_ext_global"), "set_attach_target")) + goto done; + }), "", ({ RUN_SUCCESS(exception_ext, 128); })); + + if (test__start_subtest("non-throwing fentry -> non-throwing subprog")) + /* non-throwing fentry -> non-throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.pfentry; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing fentry -> non-throwing subprog")) + /* throwing fentry -> non-throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_fentry; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("non-throwing fentry -> throwing subprog")) + /* non-throwing fentry -> throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.pfentry; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing fentry -> throwing subprog")) + /* throwing fentry -> throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_fentry; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("non-throwing fexit -> non-throwing subprog")) + /* non-throwing fexit -> non-throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.pfexit; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing fexit -> non-throwing subprog")) + /* throwing fexit -> non-throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_fexit; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("non-throwing fexit -> throwing subprog")) + /* non-throwing fexit -> throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.pfexit; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing fexit -> throwing subprog")) + /* throwing fexit -> throwing subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_fexit; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + /* fmod_ret not allowed for subprog - Check so we remember to handle its + * throwing specification compatibility with target when supported. + */ + if (test__start_subtest("non-throwing fmod_ret -> non-throwing subprog")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.pfmod_ret; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "subprog"), "set_attach_target")) + goto done; + }), "can't modify return codes of BPF program", 0); + + /* fmod_ret not allowed for subprog - Check so we remember to handle its + * throwing specification compatibility with target when supported. + */ + if (test__start_subtest("non-throwing fmod_ret -> non-throwing global subprog")) + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.pfmod_ret; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "global_subprog"), "set_attach_target")) + goto done; + }), "can't modify return codes of BPF program", 0); + + if (test__start_subtest("non-throwing extension -> non-throwing subprog")) + /* non-throwing extension -> non-throwing subprog : BAD (!global) */ + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "subprog"), "set_attach_target")) + goto done; + }), "subprog() is not a global function", 0); + + if (test__start_subtest("non-throwing extension -> throwing subprog")) + /* non-throwing extension -> throwing subprog : BAD (!global) */ + RUN_EXT(-EINVAL, true, ({ + prog = eskel->progs.extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_subprog"), "set_attach_target")) + goto done; + }), "throwing_subprog() is not a global function", 0); + + if (test__start_subtest("non-throwing extension -> non-throwing subprog")) + /* non-throwing extension -> non-throwing global subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "global_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("non-throwing extension -> throwing global subprog")) + /* non-throwing extension -> throwing global subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_global_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing extension -> throwing global subprog")) + /* throwing extension -> throwing global subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "throwing_global_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing extension -> non-throwing global subprog")) + /* throwing extension -> non-throwing global subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "global_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("non-throwing extension -> main subprog")) + /* non-throwing extension -> main subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "exception_throw_subprog"), "set_attach_target")) + goto done; + }), "", 0); + + if (test__start_subtest("throwing extension -> main subprog")) + /* throwing extension -> main subprog : OK */ + RUN_EXT(0, false, ({ + prog = eskel->progs.throwing_extension; + bpf_program__set_autoload(prog, true); + if (!ASSERT_OK(bpf_program__set_attach_target(prog, + bpf_program__fd(skel->progs.exception_throw_subprog), + "exception_throw_subprog"), "set_attach_target")) + goto done; + }), "", 0); + +done: + exceptions_ext__destroy(eskel); + exceptions__destroy(skel); +} + +static void test_exceptions_assertions(void) +{ + RUN_TESTS(exceptions_assert); +} + +void test_exceptions(void) +{ + test_exceptions_success(); + test_exceptions_failure(); + test_exceptions_assertions(); +} diff --git a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c index 2fd05649bad1..4ad4cd69152e 100644 --- a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c +++ b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c @@ -11,9 +11,13 @@ #define NS_TEST "fib_lookup_ns" #define IPV6_IFACE_ADDR "face::face" +#define IPV6_IFACE_ADDR_SEC "cafe::cafe" +#define IPV6_ADDR_DST "face::3" #define IPV6_NUD_FAILED_ADDR "face::1" #define IPV6_NUD_STALE_ADDR "face::2" #define IPV4_IFACE_ADDR "10.0.0.254" +#define IPV4_IFACE_ADDR_SEC "10.1.0.254" +#define IPV4_ADDR_DST "10.2.0.254" #define IPV4_NUD_FAILED_ADDR "10.0.0.1" #define IPV4_NUD_STALE_ADDR "10.0.0.2" #define IPV4_TBID_ADDR "172.0.0.254" @@ -31,6 +35,7 @@ struct fib_lookup_test { const char *desc; const char *daddr; int expected_ret; + const char *expected_src; int lookup_flags; __u32 tbid; __u8 dmac[6]; @@ -69,6 +74,22 @@ static const struct fib_lookup_test tests[] = { .daddr = IPV6_TBID_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, .lookup_flags = BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID, .tbid = 100, .dmac = DMAC_INIT2, }, + { .desc = "IPv4 set src addr from netdev", + .daddr = IPV4_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV4_IFACE_ADDR, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv6 set src addr from netdev", + .daddr = IPV6_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV6_IFACE_ADDR, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv4 set prefsrc addr from route", + .daddr = IPV4_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV4_IFACE_ADDR_SEC, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, + { .desc = "IPv6 set prefsrc addr route", + .daddr = IPV6_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS, + .expected_src = IPV6_IFACE_ADDR_SEC, + .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, }, }; static int ifindex; @@ -97,6 +118,13 @@ static int setup_netns(void) SYS(fail, "ip neigh add %s dev veth1 nud failed", IPV4_NUD_FAILED_ADDR); SYS(fail, "ip neigh add %s dev veth1 lladdr %s nud stale", IPV4_NUD_STALE_ADDR, DMAC); + /* Setup for prefsrc IP addr selection */ + SYS(fail, "ip addr add %s/24 dev veth1", IPV4_IFACE_ADDR_SEC); + SYS(fail, "ip route add %s/32 dev veth1 src %s", IPV4_ADDR_DST, IPV4_IFACE_ADDR_SEC); + + SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_IFACE_ADDR_SEC); + SYS(fail, "ip route add %s/128 dev veth1 src %s", IPV6_ADDR_DST, IPV6_IFACE_ADDR_SEC); + /* Setup for tbid lookup tests */ SYS(fail, "ip addr add %s/24 dev veth2", IPV4_TBID_ADDR); SYS(fail, "ip route del %s/24 dev veth2", IPV4_TBID_NET); @@ -133,9 +161,12 @@ static int set_lookup_params(struct bpf_fib_lookup *params, const struct fib_loo if (inet_pton(AF_INET6, test->daddr, params->ipv6_dst) == 1) { params->family = AF_INET6; - ret = inet_pton(AF_INET6, IPV6_IFACE_ADDR, params->ipv6_src); - if (!ASSERT_EQ(ret, 1, "inet_pton(IPV6_IFACE_ADDR)")) - return -1; + if (!(test->lookup_flags & BPF_FIB_LOOKUP_SRC)) { + ret = inet_pton(AF_INET6, IPV6_IFACE_ADDR, params->ipv6_src); + if (!ASSERT_EQ(ret, 1, "inet_pton(IPV6_IFACE_ADDR)")) + return -1; + } + return 0; } @@ -143,9 +174,12 @@ static int set_lookup_params(struct bpf_fib_lookup *params, const struct fib_loo if (!ASSERT_EQ(ret, 1, "convert IP[46] address")) return -1; params->family = AF_INET; - ret = inet_pton(AF_INET, IPV4_IFACE_ADDR, ¶ms->ipv4_src); - if (!ASSERT_EQ(ret, 1, "inet_pton(IPV4_IFACE_ADDR)")) - return -1; + + if (!(test->lookup_flags & BPF_FIB_LOOKUP_SRC)) { + ret = inet_pton(AF_INET, IPV4_IFACE_ADDR, ¶ms->ipv4_src); + if (!ASSERT_EQ(ret, 1, "inet_pton(IPV4_IFACE_ADDR)")) + return -1; + } return 0; } @@ -156,6 +190,40 @@ static void mac_str(char *b, const __u8 *mac) mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); } +static void assert_src_ip(struct bpf_fib_lookup *fib_params, const char *expected_src) +{ + int ret; + __u32 src6[4]; + __be32 src4; + + switch (fib_params->family) { + case AF_INET6: + ret = inet_pton(AF_INET6, expected_src, src6); + ASSERT_EQ(ret, 1, "inet_pton(expected_src)"); + + ret = memcmp(src6, fib_params->ipv6_src, sizeof(fib_params->ipv6_src)); + if (!ASSERT_EQ(ret, 0, "fib_lookup ipv6 src")) { + char str_src6[64]; + + inet_ntop(AF_INET6, fib_params->ipv6_src, str_src6, + sizeof(str_src6)); + printf("ipv6 expected %s actual %s ", expected_src, + str_src6); + } + + break; + case AF_INET: + ret = inet_pton(AF_INET, expected_src, &src4); + ASSERT_EQ(ret, 1, "inet_pton(expected_src)"); + + ASSERT_EQ(fib_params->ipv4_src, src4, "fib_lookup ipv4 src"); + + break; + default: + PRINT_FAIL("invalid addr family: %d", fib_params->family); + } +} + void test_fib_lookup(void) { struct bpf_fib_lookup *fib_params; @@ -207,6 +275,9 @@ void test_fib_lookup(void) ASSERT_EQ(skel->bss->fib_lookup_ret, tests[i].expected_ret, "fib_lookup_ret"); + if (tests[i].expected_src) + assert_src_ip(fib_params, tests[i].expected_src); + ret = memcmp(tests[i].dmac, fib_params->dmac, sizeof(tests[i].dmac)); if (!ASSERT_EQ(ret, 0, "dmac not match")) { char expected[18], actual[18]; diff --git a/tools/testing/selftests/bpf/prog_tests/fill_link_info.c b/tools/testing/selftests/bpf/prog_tests/fill_link_info.c index 9d768e083714..97142a4db374 100644 --- a/tools/testing/selftests/bpf/prog_tests/fill_link_info.c +++ b/tools/testing/selftests/bpf/prog_tests/fill_link_info.c @@ -308,7 +308,7 @@ void test_fill_link_info(void) return; /* load kallsyms to compare the addr */ - if (!ASSERT_OK(load_kallsyms_refresh(), "load_kallsyms_refresh")) + if (!ASSERT_OK(load_kallsyms(), "load_kallsyms")) goto cleanup; kprobe_addr = ksym_get_addr(KPROBE_FUNC); diff --git a/tools/testing/selftests/bpf/prog_tests/iters.c b/tools/testing/selftests/bpf/prog_tests/iters.c index 10804ae5ae97..b696873c5455 100644 --- a/tools/testing/selftests/bpf/prog_tests/iters.c +++ b/tools/testing/selftests/bpf/prog_tests/iters.c @@ -8,6 +8,7 @@ #include "iters_looping.skel.h" #include "iters_num.skel.h" #include "iters_testmod_seq.skel.h" +#include "iters_task_vma.skel.h" static void subtest_num_iters(void) { @@ -90,6 +91,61 @@ cleanup: iters_testmod_seq__destroy(skel); } +static void subtest_task_vma_iters(void) +{ + unsigned long start, end, bpf_iter_start, bpf_iter_end; + struct iters_task_vma *skel; + char rest_of_line[1000]; + unsigned int seen; + FILE *f = NULL; + int err; + + skel = iters_task_vma__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open_and_load")) + return; + + skel->bss->target_pid = getpid(); + + err = iters_task_vma__attach(skel); + if (!ASSERT_OK(err, "skel_attach")) + goto cleanup; + + getpgid(skel->bss->target_pid); + iters_task_vma__detach(skel); + + if (!ASSERT_GT(skel->bss->vmas_seen, 0, "vmas_seen_gt_zero")) + goto cleanup; + + f = fopen("/proc/self/maps", "r"); + if (!ASSERT_OK_PTR(f, "proc_maps_fopen")) + goto cleanup; + + seen = 0; + while (fscanf(f, "%lx-%lx %[^\n]\n", &start, &end, rest_of_line) == 3) { + /* [vsyscall] vma isn't _really_ part of task->mm vmas. + * /proc/PID/maps returns it when out of vmas - see get_gate_vma + * calls in fs/proc/task_mmu.c + */ + if (strstr(rest_of_line, "[vsyscall]")) + continue; + + bpf_iter_start = skel->bss->vm_ranges[seen].vm_start; + bpf_iter_end = skel->bss->vm_ranges[seen].vm_end; + + ASSERT_EQ(bpf_iter_start, start, "vma->vm_start match"); + ASSERT_EQ(bpf_iter_end, end, "vma->vm_end match"); + seen++; + } + + if (!ASSERT_EQ(skel->bss->vmas_seen, seen, "vmas_seen_eq")) + goto cleanup; + +cleanup: + if (f) + fclose(f); + iters_task_vma__destroy(skel); +} + void test_iters(void) { RUN_TESTS(iters_state_safety); @@ -103,4 +159,6 @@ void test_iters(void) subtest_num_iters(); if (test__start_subtest("testmod_seq")) subtest_testmod_seq_iters(); + if (test__start_subtest("task_vma")) + subtest_task_vma_iters(); } diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c index 1fbe7e4ac00a..9d03528f05db 100644 --- a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c +++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c @@ -4,6 +4,8 @@ #include "trace_helpers.h" #include "bpf/libbpf_internal.h" +static struct ksyms *ksyms; + static void kprobe_multi_testmod_check(struct kprobe_multi *skel) { ASSERT_EQ(skel->bss->kprobe_testmod_test1_result, 1, "kprobe_test1_result"); @@ -50,12 +52,12 @@ static void test_testmod_attach_api_addrs(void) LIBBPF_OPTS(bpf_kprobe_multi_opts, opts); unsigned long long addrs[3]; - addrs[0] = ksym_get_addr("bpf_testmod_fentry_test1"); - ASSERT_NEQ(addrs[0], 0, "ksym_get_addr"); - addrs[1] = ksym_get_addr("bpf_testmod_fentry_test2"); - ASSERT_NEQ(addrs[1], 0, "ksym_get_addr"); - addrs[2] = ksym_get_addr("bpf_testmod_fentry_test3"); - ASSERT_NEQ(addrs[2], 0, "ksym_get_addr"); + addrs[0] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test1"); + ASSERT_NEQ(addrs[0], 0, "ksym_get_addr_local"); + addrs[1] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test2"); + ASSERT_NEQ(addrs[1], 0, "ksym_get_addr_local"); + addrs[2] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test3"); + ASSERT_NEQ(addrs[2], 0, "ksym_get_addr_local"); opts.addrs = (const unsigned long *) addrs; opts.cnt = ARRAY_SIZE(addrs); @@ -79,11 +81,15 @@ static void test_testmod_attach_api_syms(void) void serial_test_kprobe_multi_testmod_test(void) { - if (!ASSERT_OK(load_kallsyms_refresh(), "load_kallsyms_refresh")) + ksyms = load_kallsyms_local(); + if (!ASSERT_OK_PTR(ksyms, "load_kallsyms_local")) return; if (test__start_subtest("testmod_attach_api_syms")) test_testmod_attach_api_syms(); + if (test__start_subtest("testmod_attach_api_addrs")) test_testmod_attach_api_addrs(); + + free_kallsyms_local(ksyms); } diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_str.c b/tools/testing/selftests/bpf/prog_tests/libbpf_str.c index efb8bd43653c..c440ea3311ed 100644 --- a/tools/testing/selftests/bpf/prog_tests/libbpf_str.c +++ b/tools/testing/selftests/bpf/prog_tests/libbpf_str.c @@ -142,10 +142,14 @@ static void test_libbpf_bpf_map_type_str(void) /* Special case for map_type_name BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED * where it and BPF_MAP_TYPE_CGROUP_STORAGE have the same enum value * (map_type). For this enum value, libbpf_bpf_map_type_str() picks - * BPF_MAP_TYPE_CGROUP_STORAGE. + * BPF_MAP_TYPE_CGROUP_STORAGE. The same for + * BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED and + * BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE. */ if (strcmp(map_type_name, "BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED") == 0) continue; + if (strcmp(map_type_name, "BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED") == 0) + continue; ASSERT_STREQ(buf, map_type_name, "exp_str_value"); } diff --git a/tools/testing/selftests/bpf/prog_tests/linked_list.c b/tools/testing/selftests/bpf/prog_tests/linked_list.c index 18cf7b17463d..69dc31383b78 100644 --- a/tools/testing/selftests/bpf/prog_tests/linked_list.c +++ b/tools/testing/selftests/bpf/prog_tests/linked_list.c @@ -65,8 +65,8 @@ static struct { { "map_compat_raw_tp", "tracing progs cannot use bpf_{list_head,rb_root} yet" }, { "map_compat_raw_tp_w", "tracing progs cannot use bpf_{list_head,rb_root} yet" }, { "obj_type_id_oor", "local type ID argument must be in range [0, U32_MAX]" }, - { "obj_new_no_composite", "bpf_obj_new type ID argument must be of a struct" }, - { "obj_new_no_struct", "bpf_obj_new type ID argument must be of a struct" }, + { "obj_new_no_composite", "bpf_obj_new/bpf_percpu_obj_new type ID argument must be of a struct" }, + { "obj_new_no_struct", "bpf_obj_new/bpf_percpu_obj_new type ID argument must be of a struct" }, { "obj_drop_non_zero_off", "R1 must have zero offset when passed to release func" }, { "new_null_ret", "R0 invalid mem access 'ptr_or_null_'" }, { "obj_new_acq", "Unreleased reference id=" }, @@ -268,7 +268,7 @@ end: static void list_and_rb_node_same_struct(bool refcount_field) { - int bpf_rb_node_btf_id, bpf_refcount_btf_id, foo_btf_id; + int bpf_rb_node_btf_id, bpf_refcount_btf_id = 0, foo_btf_id; struct btf *btf; int id, err; diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h b/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h index 61333f2a03f9..e9190574e79f 100644 --- a/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h +++ b/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h @@ -49,7 +49,8 @@ static int open_tuntap(const char *dev_name, bool need_mac) return -1; ifr.ifr_flags = IFF_NO_PI | (need_mac ? IFF_TAP : IFF_TUN); - memcpy(ifr.ifr_name, dev_name, IFNAMSIZ); + strncpy(ifr.ifr_name, dev_name, IFNAMSIZ - 1); + ifr.ifr_name[IFNAMSIZ - 1] = '\0'; err = ioctl(fd, TUNSETIFF, &ifr); if (!ASSERT_OK(err, "ioctl(TUNSETIFF)")) { diff --git a/tools/testing/selftests/bpf/prog_tests/missed.c b/tools/testing/selftests/bpf/prog_tests/missed.c new file mode 100644 index 000000000000..70d90c43537c --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/missed.c @@ -0,0 +1,138 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include "missed_kprobe.skel.h" +#include "missed_kprobe_recursion.skel.h" +#include "missed_tp_recursion.skel.h" + +/* + * Putting kprobe on bpf_fentry_test1 that calls bpf_kfunc_common_test + * kfunc, which has also kprobe on. The latter won't get triggered due + * to kprobe recursion check and kprobe missed counter is incremented. + */ +static void test_missed_perf_kprobe(void) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + struct bpf_link_info info = {}; + struct missed_kprobe *skel; + __u32 len = sizeof(info); + int err, prog_fd; + + skel = missed_kprobe__open_and_load(); + if (!ASSERT_OK_PTR(skel, "missed_kprobe__open_and_load")) + goto cleanup; + + err = missed_kprobe__attach(skel); + if (!ASSERT_OK(err, "missed_kprobe__attach")) + goto cleanup; + + prog_fd = bpf_program__fd(skel->progs.trigger); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(topts.retval, 0, "test_run"); + + err = bpf_link_get_info_by_fd(bpf_link__fd(skel->links.test2), &info, &len); + if (!ASSERT_OK(err, "bpf_link_get_info_by_fd")) + goto cleanup; + + ASSERT_EQ(info.type, BPF_LINK_TYPE_PERF_EVENT, "info.type"); + ASSERT_EQ(info.perf_event.type, BPF_PERF_EVENT_KPROBE, "info.perf_event.type"); + ASSERT_EQ(info.perf_event.kprobe.missed, 1, "info.perf_event.kprobe.missed"); + +cleanup: + missed_kprobe__destroy(skel); +} + +static __u64 get_missed_count(int fd) +{ + struct bpf_prog_info info = {}; + __u32 len = sizeof(info); + int err; + + err = bpf_prog_get_info_by_fd(fd, &info, &len); + if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd")) + return (__u64) -1; + return info.recursion_misses; +} + +/* + * Putting kprobe.multi on bpf_fentry_test1 that calls bpf_kfunc_common_test + * kfunc which has 3 perf event kprobes and 1 kprobe.multi attached. + * + * Because fprobe (kprobe.multi attach layear) does not have strict recursion + * check the kprobe's bpf_prog_active check is hit for test2-5. + */ +static void test_missed_kprobe_recursion(void) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + struct missed_kprobe_recursion *skel; + int err, prog_fd; + + skel = missed_kprobe_recursion__open_and_load(); + if (!ASSERT_OK_PTR(skel, "missed_kprobe_recursion__open_and_load")) + goto cleanup; + + err = missed_kprobe_recursion__attach(skel); + if (!ASSERT_OK(err, "missed_kprobe_recursion__attach")) + goto cleanup; + + prog_fd = bpf_program__fd(skel->progs.trigger); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(topts.retval, 0, "test_run"); + + ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test1)), 0, "test1_recursion_misses"); + ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test2)), 1, "test2_recursion_misses"); + ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test3)), 1, "test3_recursion_misses"); + ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test4)), 1, "test4_recursion_misses"); + ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test5)), 1, "test5_recursion_misses"); + +cleanup: + missed_kprobe_recursion__destroy(skel); +} + +/* + * Putting kprobe on bpf_fentry_test1 that calls bpf_printk and invokes + * bpf_trace_printk tracepoint. The bpf_trace_printk tracepoint has test[234] + * programs attached to it. + * + * Because kprobe execution goes through bpf_prog_active check, programs + * attached to the tracepoint will fail the recursion check and increment + * the recursion_misses stats. + */ +static void test_missed_tp_recursion(void) +{ + LIBBPF_OPTS(bpf_test_run_opts, topts); + struct missed_tp_recursion *skel; + int err, prog_fd; + + skel = missed_tp_recursion__open_and_load(); + if (!ASSERT_OK_PTR(skel, "missed_tp_recursion__open_and_load")) + goto cleanup; + + err = missed_tp_recursion__attach(skel); + if (!ASSERT_OK(err, "missed_tp_recursion__attach")) + goto cleanup; + + prog_fd = bpf_program__fd(skel->progs.trigger); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run"); + ASSERT_EQ(topts.retval, 0, "test_run"); + + ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test1)), 0, "test1_recursion_misses"); + ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test2)), 1, "test2_recursion_misses"); + ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test3)), 1, "test3_recursion_misses"); + ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test4)), 1, "test4_recursion_misses"); + +cleanup: + missed_tp_recursion__destroy(skel); +} + +void test_missed(void) +{ + if (test__start_subtest("perf_kprobe")) + test_missed_perf_kprobe(); + if (test__start_subtest("kprobe_recursion")) + test_missed_kprobe_recursion(); + if (test__start_subtest("tp_recursion")) + test_missed_tp_recursion(); +} diff --git a/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c b/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c index c7636e18b1eb..aa9f67eb1c95 100644 --- a/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c +++ b/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c @@ -61,6 +61,11 @@ void test_module_fentry_shadow(void) int link_fd[2] = {}; __s32 btf_id[2] = {}; + if (!env.has_testmod) { + test__skip(); + return; + } + LIBBPF_OPTS(bpf_prog_load_opts, load_opts, .expected_attach_type = BPF_TRACE_FENTRY, ); diff --git a/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c b/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c new file mode 100644 index 000000000000..343da65864d6 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include "percpu_alloc_array.skel.h" +#include "percpu_alloc_cgrp_local_storage.skel.h" +#include "percpu_alloc_fail.skel.h" + +static void test_array(void) +{ + struct percpu_alloc_array *skel; + int err, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); + + skel = percpu_alloc_array__open(); + if (!ASSERT_OK_PTR(skel, "percpu_alloc_array__open")) + return; + + bpf_program__set_autoload(skel->progs.test_array_map_1, true); + bpf_program__set_autoload(skel->progs.test_array_map_2, true); + bpf_program__set_autoload(skel->progs.test_array_map_3, true); + bpf_program__set_autoload(skel->progs.test_array_map_4, true); + + skel->bss->my_pid = getpid(); + skel->rodata->nr_cpus = libbpf_num_possible_cpus(); + + err = percpu_alloc_array__load(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__load")) + goto out; + + err = percpu_alloc_array__attach(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__attach")) + goto out; + + prog_fd = bpf_program__fd(skel->progs.test_array_map_1); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run array_map 1-4"); + ASSERT_EQ(topts.retval, 0, "test_run array_map 1-4"); + ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d"); + ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c"); +out: + percpu_alloc_array__destroy(skel); +} + +static void test_array_sleepable(void) +{ + struct percpu_alloc_array *skel; + int err, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); + + skel = percpu_alloc_array__open(); + if (!ASSERT_OK_PTR(skel, "percpu_alloc__open")) + return; + + bpf_program__set_autoload(skel->progs.test_array_map_10, true); + + skel->bss->my_pid = getpid(); + skel->rodata->nr_cpus = libbpf_num_possible_cpus(); + + err = percpu_alloc_array__load(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__load")) + goto out; + + err = percpu_alloc_array__attach(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__attach")) + goto out; + + prog_fd = bpf_program__fd(skel->progs.test_array_map_10); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run array_map_10"); + ASSERT_EQ(topts.retval, 0, "test_run array_map_10"); + ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d"); + ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c"); +out: + percpu_alloc_array__destroy(skel); +} + +static void test_cgrp_local_storage(void) +{ + struct percpu_alloc_cgrp_local_storage *skel; + int err, cgroup_fd, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); + + cgroup_fd = test__join_cgroup("/percpu_alloc"); + if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /percpu_alloc")) + return; + + skel = percpu_alloc_cgrp_local_storage__open(); + if (!ASSERT_OK_PTR(skel, "percpu_alloc_cgrp_local_storage__open")) + goto close_fd; + + skel->bss->my_pid = getpid(); + skel->rodata->nr_cpus = libbpf_num_possible_cpus(); + + err = percpu_alloc_cgrp_local_storage__load(skel); + if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__load")) + goto destroy_skel; + + err = percpu_alloc_cgrp_local_storage__attach(skel); + if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__attach")) + goto destroy_skel; + + prog_fd = bpf_program__fd(skel->progs.test_cgrp_local_storage_1); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run cgrp_local_storage 1-3"); + ASSERT_EQ(topts.retval, 0, "test_run cgrp_local_storage 1-3"); + ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d"); + ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c"); + +destroy_skel: + percpu_alloc_cgrp_local_storage__destroy(skel); +close_fd: + close(cgroup_fd); +} + +static void test_failure(void) { + RUN_TESTS(percpu_alloc_fail); +} + +void test_percpu_alloc(void) +{ + if (test__start_subtest("array")) + test_array(); + if (test__start_subtest("array_sleepable")) + test_array_sleepable(); + if (test__start_subtest("cgrp_local_storage")) + test_cgrp_local_storage(); + if (test__start_subtest("failure_tests")) + test_failure(); +} diff --git a/tools/testing/selftests/bpf/prog_tests/preempted_bpf_ma_op.c b/tools/testing/selftests/bpf/prog_tests/preempted_bpf_ma_op.c new file mode 100644 index 000000000000..3a2ec3923fca --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/preempted_bpf_ma_op.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2023. Huawei Technologies Co., Ltd */ +#define _GNU_SOURCE +#include <sched.h> +#include <pthread.h> +#include <stdbool.h> +#include <test_progs.h> + +#include "preempted_bpf_ma_op.skel.h" + +#define ALLOC_THREAD_NR 4 +#define ALLOC_LOOP_NR 512 + +struct alloc_ctx { + /* output */ + int run_err; + /* input */ + int fd; + bool *nomem_err; +}; + +static void *run_alloc_prog(void *data) +{ + struct alloc_ctx *ctx = data; + cpu_set_t cpu_set; + int i; + + CPU_ZERO(&cpu_set); + CPU_SET(0, &cpu_set); + pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set); + + for (i = 0; i < ALLOC_LOOP_NR && !*ctx->nomem_err; i++) { + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err; + + err = bpf_prog_test_run_opts(ctx->fd, &topts); + ctx->run_err |= err | topts.retval; + } + + return NULL; +} + +void test_preempted_bpf_ma_op(void) +{ + struct alloc_ctx ctx[ALLOC_THREAD_NR]; + struct preempted_bpf_ma_op *skel; + pthread_t tid[ALLOC_THREAD_NR]; + int i, err; + + skel = preempted_bpf_ma_op__open_and_load(); + if (!ASSERT_OK_PTR(skel, "open_and_load")) + return; + + err = preempted_bpf_ma_op__attach(skel); + if (!ASSERT_OK(err, "attach")) + goto out; + + for (i = 0; i < ARRAY_SIZE(ctx); i++) { + struct bpf_program *prog; + char name[8]; + + snprintf(name, sizeof(name), "test%d", i); + prog = bpf_object__find_program_by_name(skel->obj, name); + if (!ASSERT_OK_PTR(prog, "no test prog")) + goto out; + + ctx[i].run_err = 0; + ctx[i].fd = bpf_program__fd(prog); + ctx[i].nomem_err = &skel->bss->nomem_err; + } + + memset(tid, 0, sizeof(tid)); + for (i = 0; i < ARRAY_SIZE(tid); i++) { + err = pthread_create(&tid[i], NULL, run_alloc_prog, &ctx[i]); + if (!ASSERT_OK(err, "pthread_create")) + break; + } + + for (i = 0; i < ARRAY_SIZE(tid); i++) { + if (!tid[i]) + break; + pthread_join(tid[i], NULL); + ASSERT_EQ(ctx[i].run_err, 0, "run prog err"); + } + + ASSERT_FALSE(skel->bss->nomem_err, "ENOMEM"); +out: + preempted_bpf_ma_op__destroy(skel); +} diff --git a/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c b/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c index 722c5f2a7776..a043af9cd6d9 100644 --- a/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c +++ b/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c @@ -14,7 +14,7 @@ static void test_queue_stack_map_by_type(int type) int i, err, prog_fd, map_in_fd, map_out_fd; char file[32], buf[128]; struct bpf_object *obj; - struct iphdr iph; + struct iphdr iph = {}; LIBBPF_OPTS(bpf_test_run_opts, topts, .data_in = &pkt_v4, .data_size_in = sizeof(pkt_v4), diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf.c b/tools/testing/selftests/bpf/prog_tests/ringbuf.c index ac104dc652e3..48c5695b7abf 100644 --- a/tools/testing/selftests/bpf/prog_tests/ringbuf.c +++ b/tools/testing/selftests/bpf/prog_tests/ringbuf.c @@ -91,6 +91,9 @@ static void ringbuf_subtest(void) int err, cnt, rb_fd; int page_size = getpagesize(); void *mmap_ptr, *tmp_ptr; + struct ring *ring; + int map_fd; + unsigned long avail_data, ring_size, cons_pos, prod_pos; skel = test_ringbuf_lskel__open(); if (CHECK(!skel, "skel_open", "skeleton open failed\n")) @@ -162,6 +165,13 @@ static void ringbuf_subtest(void) trigger_samples(); + ring = ring_buffer__ring(ringbuf, 0); + if (!ASSERT_OK_PTR(ring, "ring_buffer__ring_idx_0")) + goto cleanup; + + map_fd = ring__map_fd(ring); + ASSERT_EQ(map_fd, skel->maps.ringbuf.map_fd, "ring_map_fd"); + /* 2 submitted + 1 discarded records */ CHECK(skel->bss->avail_data != 3 * rec_sz, "err_avail_size", "exp %ld, got %ld\n", @@ -176,6 +186,18 @@ static void ringbuf_subtest(void) "err_prod_pos", "exp %ld, got %ld\n", 3L * rec_sz, skel->bss->prod_pos); + /* verify getting this data directly via the ring object yields the same + * results + */ + avail_data = ring__avail_data_size(ring); + ASSERT_EQ(avail_data, 3 * rec_sz, "ring_avail_size"); + ring_size = ring__size(ring); + ASSERT_EQ(ring_size, page_size, "ring_ring_size"); + cons_pos = ring__consumer_pos(ring); + ASSERT_EQ(cons_pos, 0, "ring_cons_pos"); + prod_pos = ring__producer_pos(ring); + ASSERT_EQ(prod_pos, 3 * rec_sz, "ring_prod_pos"); + /* poll for samples */ err = ring_buffer__poll(ringbuf, -1); @@ -282,6 +304,10 @@ static void ringbuf_subtest(void) err = ring_buffer__consume(ringbuf); CHECK(err < 0, "rb_consume", "failed: %d\b", err); + /* also consume using ring__consume to make sure it works the same */ + err = ring__consume(ring); + ASSERT_GE(err, 0, "ring_consume"); + /* 3 rounds, 2 samples each */ cnt = atomic_xchg(&sample_cnt, 0); CHECK(cnt != 6, "cnt", "exp %d samples, got %d\n", 6, cnt); diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c index 1455911d9fcb..58522195081b 100644 --- a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c +++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c @@ -42,6 +42,8 @@ void test_ringbuf_multi(void) { struct test_ringbuf_multi *skel; struct ring_buffer *ringbuf = NULL; + struct ring *ring_old; + struct ring *ring; int err; int page_size = getpagesize(); int proto_fd = -1; @@ -84,11 +86,24 @@ void test_ringbuf_multi(void) if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n")) goto cleanup; + /* verify ring_buffer__ring returns expected results */ + ring = ring_buffer__ring(ringbuf, 0); + if (!ASSERT_OK_PTR(ring, "ring_buffer__ring_idx_0")) + goto cleanup; + ring_old = ring; + ring = ring_buffer__ring(ringbuf, 1); + ASSERT_ERR_PTR(ring, "ring_buffer__ring_idx_1"); + err = ring_buffer__add(ringbuf, bpf_map__fd(skel->maps.ringbuf2), process_sample, (void *)(long)2); if (CHECK(err, "ringbuf_add", "failed to add another ring\n")) goto cleanup; + /* verify adding a new ring didn't invalidate our older pointer */ + ring = ring_buffer__ring(ringbuf, 0); + if (!ASSERT_EQ(ring, ring_old, "ring_buffer__ring_again")) + goto cleanup; + err = test_ringbuf_multi__attach(skel); if (CHECK(err, "skel_attach", "skeleton attachment failed: %d\n", err)) goto cleanup; diff --git a/tools/testing/selftests/bpf/prog_tests/section_names.c b/tools/testing/selftests/bpf/prog_tests/section_names.c index 8b571890c57e..c3d78846f31a 100644 --- a/tools/testing/selftests/bpf/prog_tests/section_names.c +++ b/tools/testing/selftests/bpf/prog_tests/section_names.c @@ -124,6 +124,11 @@ static struct sec_name_test tests[] = { {0, BPF_CGROUP_INET6_CONNECT}, }, { + "cgroup/connect_unix", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_CONNECT}, + {0, BPF_CGROUP_UNIX_CONNECT}, + }, + { "cgroup/sendmsg4", {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_SENDMSG}, {0, BPF_CGROUP_UDP4_SENDMSG}, @@ -134,6 +139,11 @@ static struct sec_name_test tests[] = { {0, BPF_CGROUP_UDP6_SENDMSG}, }, { + "cgroup/sendmsg_unix", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_SENDMSG}, + {0, BPF_CGROUP_UNIX_SENDMSG}, + }, + { "cgroup/recvmsg4", {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_RECVMSG}, {0, BPF_CGROUP_UDP4_RECVMSG}, @@ -144,6 +154,11 @@ static struct sec_name_test tests[] = { {0, BPF_CGROUP_UDP6_RECVMSG}, }, { + "cgroup/recvmsg_unix", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_RECVMSG}, + {0, BPF_CGROUP_UNIX_RECVMSG}, + }, + { "cgroup/sysctl", {0, BPF_PROG_TYPE_CGROUP_SYSCTL, BPF_CGROUP_SYSCTL}, {0, BPF_CGROUP_SYSCTL}, @@ -158,6 +173,36 @@ static struct sec_name_test tests[] = { {0, BPF_PROG_TYPE_CGROUP_SOCKOPT, BPF_CGROUP_SETSOCKOPT}, {0, BPF_CGROUP_SETSOCKOPT}, }, + { + "cgroup/getpeername4", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_GETPEERNAME}, + {0, BPF_CGROUP_INET4_GETPEERNAME}, + }, + { + "cgroup/getpeername6", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETPEERNAME}, + {0, BPF_CGROUP_INET6_GETPEERNAME}, + }, + { + "cgroup/getpeername_unix", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_GETPEERNAME}, + {0, BPF_CGROUP_UNIX_GETPEERNAME}, + }, + { + "cgroup/getsockname4", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_GETSOCKNAME}, + {0, BPF_CGROUP_INET4_GETSOCKNAME}, + }, + { + "cgroup/getsockname6", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETSOCKNAME}, + {0, BPF_CGROUP_INET6_GETSOCKNAME}, + }, + { + "cgroup/getsockname_unix", + {0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_GETSOCKNAME}, + {0, BPF_CGROUP_UNIX_GETSOCKNAME}, + }, }; static void test_prog_type_by_name(const struct sec_name_test *test) diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c new file mode 100644 index 000000000000..5fd617718991 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c @@ -0,0 +1,612 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <sys/un.h> + +#include "test_progs.h" + +#include "connect_unix_prog.skel.h" +#include "sendmsg_unix_prog.skel.h" +#include "recvmsg_unix_prog.skel.h" +#include "getsockname_unix_prog.skel.h" +#include "getpeername_unix_prog.skel.h" +#include "network_helpers.h" + +#define SERVUN_ADDRESS "bpf_cgroup_unix_test" +#define SERVUN_REWRITE_ADDRESS "bpf_cgroup_unix_test_rewrite" +#define SRCUN_ADDRESS "bpf_cgroup_unix_test_src" + +enum sock_addr_test_type { + SOCK_ADDR_TEST_BIND, + SOCK_ADDR_TEST_CONNECT, + SOCK_ADDR_TEST_SENDMSG, + SOCK_ADDR_TEST_RECVMSG, + SOCK_ADDR_TEST_GETSOCKNAME, + SOCK_ADDR_TEST_GETPEERNAME, +}; + +typedef void *(*load_fn)(int cgroup_fd); +typedef void (*destroy_fn)(void *skel); + +struct sock_addr_test { + enum sock_addr_test_type type; + const char *name; + /* BPF prog properties */ + load_fn loadfn; + destroy_fn destroyfn; + /* Socket properties */ + int socket_family; + int socket_type; + /* IP:port pairs for BPF prog to override */ + const char *requested_addr; + unsigned short requested_port; + const char *expected_addr; + unsigned short expected_port; + const char *expected_src_addr; +}; + +static void *connect_unix_prog_load(int cgroup_fd) +{ + struct connect_unix_prog *skel; + + skel = connect_unix_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + skel->links.connect_unix_prog = bpf_program__attach_cgroup( + skel->progs.connect_unix_prog, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.connect_unix_prog, "prog_attach")) + goto cleanup; + + return skel; +cleanup: + connect_unix_prog__destroy(skel); + return NULL; +} + +static void connect_unix_prog_destroy(void *skel) +{ + connect_unix_prog__destroy(skel); +} + +static void *sendmsg_unix_prog_load(int cgroup_fd) +{ + struct sendmsg_unix_prog *skel; + + skel = sendmsg_unix_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + skel->links.sendmsg_unix_prog = bpf_program__attach_cgroup( + skel->progs.sendmsg_unix_prog, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.sendmsg_unix_prog, "prog_attach")) + goto cleanup; + + return skel; +cleanup: + sendmsg_unix_prog__destroy(skel); + return NULL; +} + +static void sendmsg_unix_prog_destroy(void *skel) +{ + sendmsg_unix_prog__destroy(skel); +} + +static void *recvmsg_unix_prog_load(int cgroup_fd) +{ + struct recvmsg_unix_prog *skel; + + skel = recvmsg_unix_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + skel->links.recvmsg_unix_prog = bpf_program__attach_cgroup( + skel->progs.recvmsg_unix_prog, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.recvmsg_unix_prog, "prog_attach")) + goto cleanup; + + return skel; +cleanup: + recvmsg_unix_prog__destroy(skel); + return NULL; +} + +static void recvmsg_unix_prog_destroy(void *skel) +{ + recvmsg_unix_prog__destroy(skel); +} + +static void *getsockname_unix_prog_load(int cgroup_fd) +{ + struct getsockname_unix_prog *skel; + + skel = getsockname_unix_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + skel->links.getsockname_unix_prog = bpf_program__attach_cgroup( + skel->progs.getsockname_unix_prog, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.getsockname_unix_prog, "prog_attach")) + goto cleanup; + + return skel; +cleanup: + getsockname_unix_prog__destroy(skel); + return NULL; +} + +static void getsockname_unix_prog_destroy(void *skel) +{ + getsockname_unix_prog__destroy(skel); +} + +static void *getpeername_unix_prog_load(int cgroup_fd) +{ + struct getpeername_unix_prog *skel; + + skel = getpeername_unix_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + goto cleanup; + + skel->links.getpeername_unix_prog = bpf_program__attach_cgroup( + skel->progs.getpeername_unix_prog, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.getpeername_unix_prog, "prog_attach")) + goto cleanup; + + return skel; +cleanup: + getpeername_unix_prog__destroy(skel); + return NULL; +} + +static void getpeername_unix_prog_destroy(void *skel) +{ + getpeername_unix_prog__destroy(skel); +} + +static struct sock_addr_test tests[] = { + { + SOCK_ADDR_TEST_CONNECT, + "connect_unix", + connect_unix_prog_load, + connect_unix_prog_destroy, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + }, + { + SOCK_ADDR_TEST_SENDMSG, + "sendmsg_unix", + sendmsg_unix_prog_load, + sendmsg_unix_prog_destroy, + AF_UNIX, + SOCK_DGRAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + }, + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg_unix-dgram", + recvmsg_unix_prog_load, + recvmsg_unix_prog_destroy, + AF_UNIX, + SOCK_DGRAM, + SERVUN_REWRITE_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + SERVUN_ADDRESS, + }, + { + SOCK_ADDR_TEST_RECVMSG, + "recvmsg_unix-stream", + recvmsg_unix_prog_load, + recvmsg_unix_prog_destroy, + AF_UNIX, + SOCK_STREAM, + SERVUN_REWRITE_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + SERVUN_ADDRESS, + }, + { + SOCK_ADDR_TEST_GETSOCKNAME, + "getsockname_unix", + getsockname_unix_prog_load, + getsockname_unix_prog_destroy, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + }, + { + SOCK_ADDR_TEST_GETPEERNAME, + "getpeername_unix", + getpeername_unix_prog_load, + getpeername_unix_prog_destroy, + AF_UNIX, + SOCK_STREAM, + SERVUN_ADDRESS, + 0, + SERVUN_REWRITE_ADDRESS, + 0, + NULL, + }, +}; + +typedef int (*info_fn)(int, struct sockaddr *, socklen_t *); + +static int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len, + const struct sockaddr_storage *addr2, socklen_t addr2_len, + bool cmp_port) +{ + const struct sockaddr_in *four1, *four2; + const struct sockaddr_in6 *six1, *six2; + const struct sockaddr_un *un1, *un2; + + if (addr1->ss_family != addr2->ss_family) + return -1; + + if (addr1_len != addr2_len) + return -1; + + if (addr1->ss_family == AF_INET) { + four1 = (const struct sockaddr_in *)addr1; + four2 = (const struct sockaddr_in *)addr2; + return !((four1->sin_port == four2->sin_port || !cmp_port) && + four1->sin_addr.s_addr == four2->sin_addr.s_addr); + } else if (addr1->ss_family == AF_INET6) { + six1 = (const struct sockaddr_in6 *)addr1; + six2 = (const struct sockaddr_in6 *)addr2; + return !((six1->sin6_port == six2->sin6_port || !cmp_port) && + !memcmp(&six1->sin6_addr, &six2->sin6_addr, + sizeof(struct in6_addr))); + } else if (addr1->ss_family == AF_UNIX) { + un1 = (const struct sockaddr_un *)addr1; + un2 = (const struct sockaddr_un *)addr2; + return memcmp(un1, un2, addr1_len); + } + + return -1; +} + +static int cmp_sock_addr(info_fn fn, int sock1, + const struct sockaddr_storage *addr2, + socklen_t addr2_len, bool cmp_port) +{ + struct sockaddr_storage addr1; + socklen_t len1 = sizeof(addr1); + + memset(&addr1, 0, len1); + if (fn(sock1, (struct sockaddr *)&addr1, (socklen_t *)&len1) != 0) + return -1; + + return cmp_addr(&addr1, len1, addr2, addr2_len, cmp_port); +} + +static int cmp_local_addr(int sock1, const struct sockaddr_storage *addr2, + socklen_t addr2_len, bool cmp_port) +{ + return cmp_sock_addr(getsockname, sock1, addr2, addr2_len, cmp_port); +} + +static int cmp_peer_addr(int sock1, const struct sockaddr_storage *addr2, + socklen_t addr2_len, bool cmp_port) +{ + return cmp_sock_addr(getpeername, sock1, addr2, addr2_len, cmp_port); +} + +static void test_bind(struct sock_addr_test *test) +{ + struct sockaddr_storage expected_addr; + socklen_t expected_addr_len = sizeof(struct sockaddr_storage); + int serv = -1, client = -1, err; + + serv = start_server(test->socket_family, test->socket_type, + test->requested_addr, test->requested_port, 0); + if (!ASSERT_GE(serv, 0, "start_server")) + goto cleanup; + + err = make_sockaddr(test->socket_family, + test->expected_addr, test->expected_port, + &expected_addr, &expected_addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + err = cmp_local_addr(serv, &expected_addr, expected_addr_len, true); + if (!ASSERT_EQ(err, 0, "cmp_local_addr")) + goto cleanup; + + /* Try to connect to server just in case */ + client = connect_to_addr(&expected_addr, expected_addr_len, test->socket_type); + if (!ASSERT_GE(client, 0, "connect_to_addr")) + goto cleanup; + +cleanup: + if (client != -1) + close(client); + if (serv != -1) + close(serv); +} + +static void test_connect(struct sock_addr_test *test) +{ + struct sockaddr_storage addr, expected_addr, expected_src_addr; + socklen_t addr_len = sizeof(struct sockaddr_storage), + expected_addr_len = sizeof(struct sockaddr_storage), + expected_src_addr_len = sizeof(struct sockaddr_storage); + int serv = -1, client = -1, err; + + serv = start_server(test->socket_family, test->socket_type, + test->expected_addr, test->expected_port, 0); + if (!ASSERT_GE(serv, 0, "start_server")) + goto cleanup; + + err = make_sockaddr(test->socket_family, test->requested_addr, test->requested_port, + &addr, &addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + client = connect_to_addr(&addr, addr_len, test->socket_type); + if (!ASSERT_GE(client, 0, "connect_to_addr")) + goto cleanup; + + err = make_sockaddr(test->socket_family, test->expected_addr, test->expected_port, + &expected_addr, &expected_addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + if (test->expected_src_addr) { + err = make_sockaddr(test->socket_family, test->expected_src_addr, 0, + &expected_src_addr, &expected_src_addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + } + + err = cmp_peer_addr(client, &expected_addr, expected_addr_len, true); + if (!ASSERT_EQ(err, 0, "cmp_peer_addr")) + goto cleanup; + + if (test->expected_src_addr) { + err = cmp_local_addr(client, &expected_src_addr, expected_src_addr_len, false); + if (!ASSERT_EQ(err, 0, "cmp_local_addr")) + goto cleanup; + } +cleanup: + if (client != -1) + close(client); + if (serv != -1) + close(serv); +} + +static void test_xmsg(struct sock_addr_test *test) +{ + struct sockaddr_storage addr, src_addr; + socklen_t addr_len = sizeof(struct sockaddr_storage), + src_addr_len = sizeof(struct sockaddr_storage); + struct msghdr hdr; + struct iovec iov; + char data = 'a'; + int serv = -1, client = -1, err; + + /* Unlike the other tests, here we test that we can rewrite the src addr + * with a recvmsg() hook. + */ + + serv = start_server(test->socket_family, test->socket_type, + test->expected_addr, test->expected_port, 0); + if (!ASSERT_GE(serv, 0, "start_server")) + goto cleanup; + + client = socket(test->socket_family, test->socket_type, 0); + if (!ASSERT_GE(client, 0, "socket")) + goto cleanup; + + /* AF_UNIX sockets have to be bound to something to trigger the recvmsg bpf program. */ + if (test->socket_family == AF_UNIX) { + err = make_sockaddr(AF_UNIX, SRCUN_ADDRESS, 0, &src_addr, &src_addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + err = bind(client, (const struct sockaddr *) &src_addr, src_addr_len); + if (!ASSERT_OK(err, "bind")) + goto cleanup; + } + + err = make_sockaddr(test->socket_family, test->requested_addr, test->requested_port, + &addr, &addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + if (test->socket_type == SOCK_DGRAM) { + memset(&iov, 0, sizeof(iov)); + iov.iov_base = &data; + iov.iov_len = sizeof(data); + + memset(&hdr, 0, sizeof(hdr)); + hdr.msg_name = (void *)&addr; + hdr.msg_namelen = addr_len; + hdr.msg_iov = &iov; + hdr.msg_iovlen = 1; + + err = sendmsg(client, &hdr, 0); + if (!ASSERT_EQ(err, sizeof(data), "sendmsg")) + goto cleanup; + } else { + /* Testing with connection-oriented sockets is only valid for + * recvmsg() tests. + */ + if (!ASSERT_EQ(test->type, SOCK_ADDR_TEST_RECVMSG, "recvmsg")) + goto cleanup; + + err = connect(client, (const struct sockaddr *)&addr, addr_len); + if (!ASSERT_OK(err, "connect")) + goto cleanup; + + err = send(client, &data, sizeof(data), 0); + if (!ASSERT_EQ(err, sizeof(data), "send")) + goto cleanup; + + err = listen(serv, 0); + if (!ASSERT_OK(err, "listen")) + goto cleanup; + + err = accept(serv, NULL, NULL); + if (!ASSERT_GE(err, 0, "accept")) + goto cleanup; + + close(serv); + serv = err; + } + + addr_len = src_addr_len = sizeof(struct sockaddr_storage); + + err = recvfrom(serv, &data, sizeof(data), 0, (struct sockaddr *) &src_addr, &src_addr_len); + if (!ASSERT_EQ(err, sizeof(data), "recvfrom")) + goto cleanup; + + ASSERT_EQ(data, 'a', "data mismatch"); + + if (test->expected_src_addr) { + err = make_sockaddr(test->socket_family, test->expected_src_addr, 0, + &addr, &addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + err = cmp_addr(&src_addr, src_addr_len, &addr, addr_len, false); + if (!ASSERT_EQ(err, 0, "cmp_addr")) + goto cleanup; + } + +cleanup: + if (client != -1) + close(client); + if (serv != -1) + close(serv); +} + +static void test_getsockname(struct sock_addr_test *test) +{ + struct sockaddr_storage expected_addr; + socklen_t expected_addr_len = sizeof(struct sockaddr_storage); + int serv = -1, err; + + serv = start_server(test->socket_family, test->socket_type, + test->requested_addr, test->requested_port, 0); + if (!ASSERT_GE(serv, 0, "start_server")) + goto cleanup; + + err = make_sockaddr(test->socket_family, + test->expected_addr, test->expected_port, + &expected_addr, &expected_addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + err = cmp_local_addr(serv, &expected_addr, expected_addr_len, true); + if (!ASSERT_EQ(err, 0, "cmp_local_addr")) + goto cleanup; + +cleanup: + if (serv != -1) + close(serv); +} + +static void test_getpeername(struct sock_addr_test *test) +{ + struct sockaddr_storage addr, expected_addr; + socklen_t addr_len = sizeof(struct sockaddr_storage), + expected_addr_len = sizeof(struct sockaddr_storage); + int serv = -1, client = -1, err; + + serv = start_server(test->socket_family, test->socket_type, + test->requested_addr, test->requested_port, 0); + if (!ASSERT_GE(serv, 0, "start_server")) + goto cleanup; + + err = make_sockaddr(test->socket_family, test->requested_addr, test->requested_port, + &addr, &addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + client = connect_to_addr(&addr, addr_len, test->socket_type); + if (!ASSERT_GE(client, 0, "connect_to_addr")) + goto cleanup; + + err = make_sockaddr(test->socket_family, test->expected_addr, test->expected_port, + &expected_addr, &expected_addr_len); + if (!ASSERT_EQ(err, 0, "make_sockaddr")) + goto cleanup; + + err = cmp_peer_addr(client, &expected_addr, expected_addr_len, true); + if (!ASSERT_EQ(err, 0, "cmp_peer_addr")) + goto cleanup; + +cleanup: + if (client != -1) + close(client); + if (serv != -1) + close(serv); +} + +void test_sock_addr(void) +{ + int cgroup_fd = -1; + void *skel; + + cgroup_fd = test__join_cgroup("/sock_addr"); + if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup")) + goto cleanup; + + for (size_t i = 0; i < ARRAY_SIZE(tests); ++i) { + struct sock_addr_test *test = &tests[i]; + + if (!test__start_subtest(test->name)) + continue; + + skel = test->loadfn(cgroup_fd); + if (!skel) + continue; + + switch (test->type) { + /* Not exercised yet but we leave this code here for when the + * INET and INET6 sockaddr tests are migrated to this file in + * the future. + */ + case SOCK_ADDR_TEST_BIND: + test_bind(test); + break; + case SOCK_ADDR_TEST_CONNECT: + test_connect(test); + break; + case SOCK_ADDR_TEST_SENDMSG: + case SOCK_ADDR_TEST_RECVMSG: + test_xmsg(test); + break; + case SOCK_ADDR_TEST_GETSOCKNAME: + test_getsockname(test); + break; + case SOCK_ADDR_TEST_GETPEERNAME: + test_getpeername(test); + break; + default: + ASSERT_TRUE(false, "Unknown sock addr test type"); + break; + } + + test->destroyfn(skel); + } + +cleanup: + if (cgroup_fd >= 0) + close(cgroup_fd); +} diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index dda7060e86a0..f75f84d0b3d7 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -359,7 +359,7 @@ out: static void test_sockmap_skb_verdict_shutdown(void) { struct epoll_event ev, events[MAX_EVENTS]; - int n, err, map, verdict, s, c1, p1; + int n, err, map, verdict, s, c1 = -1, p1 = -1; struct test_sockmap_pass_prog *skel; int epollfd; int zero = 0; @@ -414,9 +414,9 @@ out: static void test_sockmap_skb_verdict_fionread(bool pass_prog) { int expected, zero = 0, sent, recvd, avail; - int err, map, verdict, s, c0, c1, p0, p1; - struct test_sockmap_pass_prog *pass; - struct test_sockmap_drop_prog *drop; + int err, map, verdict, s, c0 = -1, c1 = -1, p0 = -1, p1 = -1; + struct test_sockmap_pass_prog *pass = NULL; + struct test_sockmap_drop_prog *drop = NULL; char buf[256] = "0123456789"; if (pass_prog) { diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h b/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h index 36d829a65aa4..e880f97bc44d 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h @@ -378,7 +378,7 @@ static inline int enable_reuseport(int s, int progfd) static inline int socket_loopback_reuseport(int family, int sotype, int progfd) { struct sockaddr_storage addr; - socklen_t len; + socklen_t len = 0; int err, s; init_addr_loopback(family, &addr, &len); diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c index 8df8cbb447f1..a934d430c20c 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c @@ -73,7 +73,7 @@ static void test_insert_bound(struct test_sockmap_listen *skel __always_unused, int family, int sotype, int mapfd) { struct sockaddr_storage addr; - socklen_t len; + socklen_t len = 0; u32 key = 0; u64 value; int err, s; @@ -871,7 +871,7 @@ static void test_msg_redir_to_listening(struct test_sockmap_listen *skel, static void redir_partial(int family, int sotype, int sock_map, int parser_map) { - int s, c0, c1, p0, p1; + int s, c0 = -1, c1 = -1, p0 = -1, p1 = -1; int err, n, key, value; char buf[] = "abc"; @@ -1336,53 +1336,59 @@ static void test_redir(struct test_sockmap_listen *skel, struct bpf_map *map, } } -static void unix_redir_to_connected(int sotype, int sock_mapfd, - int verd_mapfd, enum redir_mode mode) +static void pairs_redir_to_connected(int cli0, int peer0, int cli1, int peer1, + int sock_mapfd, int verd_mapfd, enum redir_mode mode) { const char *log_prefix = redir_mode_str(mode); - int c0, c1, p0, p1; unsigned int pass; int err, n; - int sfd[2]; u32 key; char b; zero_verdict_count(verd_mapfd); - if (socketpair(AF_UNIX, sotype | SOCK_NONBLOCK, 0, sfd)) - return; - c0 = sfd[0], p0 = sfd[1]; - - if (socketpair(AF_UNIX, sotype | SOCK_NONBLOCK, 0, sfd)) - goto close0; - c1 = sfd[0], p1 = sfd[1]; - - err = add_to_sockmap(sock_mapfd, p0, p1); + err = add_to_sockmap(sock_mapfd, peer0, peer1); if (err) - goto close; + return; - n = write(c1, "a", 1); + n = write(cli1, "a", 1); if (n < 0) FAIL_ERRNO("%s: write", log_prefix); if (n == 0) FAIL("%s: incomplete write", log_prefix); if (n < 1) - goto close; + return; key = SK_PASS; err = xbpf_map_lookup_elem(verd_mapfd, &key, &pass); if (err) - goto close; + return; if (pass != 1) FAIL("%s: want pass count 1, have %d", log_prefix, pass); - n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC); + n = recv_timeout(mode == REDIR_INGRESS ? peer0 : cli0, &b, 1, 0, IO_TIMEOUT_SEC); if (n < 0) FAIL_ERRNO("%s: recv_timeout", log_prefix); if (n == 0) FAIL("%s: incomplete recv", log_prefix); +} + +static void unix_redir_to_connected(int sotype, int sock_mapfd, + int verd_mapfd, enum redir_mode mode) +{ + int c0, c1, p0, p1; + int sfd[2]; + + if (socketpair(AF_UNIX, sotype | SOCK_NONBLOCK, 0, sfd)) + return; + c0 = sfd[0], p0 = sfd[1]; + + if (socketpair(AF_UNIX, sotype | SOCK_NONBLOCK, 0, sfd)) + goto close0; + c1 = sfd[0], p1 = sfd[1]; + + pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode); -close: xclose(c1); xclose(p1); close0: @@ -1661,14 +1667,8 @@ close_peer0: static void udp_redir_to_connected(int family, int sock_mapfd, int verd_mapfd, enum redir_mode mode) { - const char *log_prefix = redir_mode_str(mode); int c0, c1, p0, p1; - unsigned int pass; - int err, n; - u32 key; - char b; - - zero_verdict_count(verd_mapfd); + int err; err = inet_socketpair(family, SOCK_DGRAM, &p0, &c0); if (err) @@ -1677,32 +1677,8 @@ static void udp_redir_to_connected(int family, int sock_mapfd, int verd_mapfd, if (err) goto close_cli0; - err = add_to_sockmap(sock_mapfd, p0, p1); - if (err) - goto close_cli1; + pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode); - n = write(c1, "a", 1); - if (n < 0) - FAIL_ERRNO("%s: write", log_prefix); - if (n == 0) - FAIL("%s: incomplete write", log_prefix); - if (n < 1) - goto close_cli1; - - key = SK_PASS; - err = xbpf_map_lookup_elem(verd_mapfd, &key, &pass); - if (err) - goto close_cli1; - if (pass != 1) - FAIL("%s: want pass count 1, have %d", log_prefix, pass); - - n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC); - if (n < 0) - FAIL_ERRNO("%s: recv_timeout", log_prefix); - if (n == 0) - FAIL("%s: incomplete recv", log_prefix); - -close_cli1: xclose(c1); xclose(p1); close_cli0: @@ -1747,15 +1723,9 @@ static void test_udp_redir(struct test_sockmap_listen *skel, struct bpf_map *map static void inet_unix_redir_to_connected(int family, int type, int sock_mapfd, int verd_mapfd, enum redir_mode mode) { - const char *log_prefix = redir_mode_str(mode); int c0, c1, p0, p1; - unsigned int pass; - int err, n; int sfd[2]; - u32 key; - char b; - - zero_verdict_count(verd_mapfd); + int err; if (socketpair(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0, sfd)) return; @@ -1765,32 +1735,8 @@ static void inet_unix_redir_to_connected(int family, int type, int sock_mapfd, if (err) goto close; - err = add_to_sockmap(sock_mapfd, p0, p1); - if (err) - goto close_cli1; - - n = write(c1, "a", 1); - if (n < 0) - FAIL_ERRNO("%s: write", log_prefix); - if (n == 0) - FAIL("%s: incomplete write", log_prefix); - if (n < 1) - goto close_cli1; - - key = SK_PASS; - err = xbpf_map_lookup_elem(verd_mapfd, &key, &pass); - if (err) - goto close_cli1; - if (pass != 1) - FAIL("%s: want pass count 1, have %d", log_prefix, pass); - - n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC); - if (n < 0) - FAIL_ERRNO("%s: recv_timeout", log_prefix); - if (n == 0) - FAIL("%s: incomplete recv", log_prefix); + pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode); -close_cli1: xclose(c1); xclose(p1); close: @@ -1827,15 +1773,9 @@ static void inet_unix_skb_redir_to_connected(struct test_sockmap_listen *skel, static void unix_inet_redir_to_connected(int family, int type, int sock_mapfd, int verd_mapfd, enum redir_mode mode) { - const char *log_prefix = redir_mode_str(mode); int c0, c1, p0, p1; - unsigned int pass; - int err, n; int sfd[2]; - u32 key; - char b; - - zero_verdict_count(verd_mapfd); + int err; err = inet_socketpair(family, SOCK_DGRAM, &p0, &c0); if (err) @@ -1845,32 +1785,8 @@ static void unix_inet_redir_to_connected(int family, int type, int sock_mapfd, goto close_cli0; c1 = sfd[0], p1 = sfd[1]; - err = add_to_sockmap(sock_mapfd, p0, p1); - if (err) - goto close; - - n = write(c1, "a", 1); - if (n < 0) - FAIL_ERRNO("%s: write", log_prefix); - if (n == 0) - FAIL("%s: incomplete write", log_prefix); - if (n < 1) - goto close; - - key = SK_PASS; - err = xbpf_map_lookup_elem(verd_mapfd, &key, &pass); - if (err) - goto close; - if (pass != 1) - FAIL("%s: want pass count 1, have %d", log_prefix, pass); - - n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC); - if (n < 0) - FAIL_ERRNO("%s: recv_timeout", log_prefix); - if (n == 0) - FAIL("%s: incomplete recv", log_prefix); + pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode); -close: xclose(c1); xclose(p1); close_cli0: diff --git a/tools/testing/selftests/bpf/prog_tests/tailcalls.c b/tools/testing/selftests/bpf/prog_tests/tailcalls.c index 58fe2c586ed7..fc6b2954e8f5 100644 --- a/tools/testing/selftests/bpf/prog_tests/tailcalls.c +++ b/tools/testing/selftests/bpf/prog_tests/tailcalls.c @@ -218,12 +218,14 @@ out: bpf_object__close(obj); } -static void test_tailcall_count(const char *which) +static void test_tailcall_count(const char *which, bool test_fentry, + bool test_fexit) { + struct bpf_object *obj = NULL, *fentry_obj = NULL, *fexit_obj = NULL; + struct bpf_link *fentry_link = NULL, *fexit_link = NULL; int err, map_fd, prog_fd, main_fd, data_fd, i, val; struct bpf_map *prog_array, *data_map; struct bpf_program *prog; - struct bpf_object *obj; char buff[128] = {}; LIBBPF_OPTS(bpf_test_run_opts, topts, .data_in = buff, @@ -265,23 +267,105 @@ static void test_tailcall_count(const char *which) if (CHECK_FAIL(err)) goto out; + if (test_fentry) { + fentry_obj = bpf_object__open_file("tailcall_bpf2bpf_fentry.bpf.o", + NULL); + if (!ASSERT_OK_PTR(fentry_obj, "open fentry_obj file")) + goto out; + + prog = bpf_object__find_program_by_name(fentry_obj, "fentry"); + if (!ASSERT_OK_PTR(prog, "find fentry prog")) + goto out; + + err = bpf_program__set_attach_target(prog, prog_fd, + "subprog_tail"); + if (!ASSERT_OK(err, "set_attach_target subprog_tail")) + goto out; + + err = bpf_object__load(fentry_obj); + if (!ASSERT_OK(err, "load fentry_obj")) + goto out; + + fentry_link = bpf_program__attach_trace(prog); + if (!ASSERT_OK_PTR(fentry_link, "attach_trace")) + goto out; + } + + if (test_fexit) { + fexit_obj = bpf_object__open_file("tailcall_bpf2bpf_fexit.bpf.o", + NULL); + if (!ASSERT_OK_PTR(fexit_obj, "open fexit_obj file")) + goto out; + + prog = bpf_object__find_program_by_name(fexit_obj, "fexit"); + if (!ASSERT_OK_PTR(prog, "find fexit prog")) + goto out; + + err = bpf_program__set_attach_target(prog, prog_fd, + "subprog_tail"); + if (!ASSERT_OK(err, "set_attach_target subprog_tail")) + goto out; + + err = bpf_object__load(fexit_obj); + if (!ASSERT_OK(err, "load fexit_obj")) + goto out; + + fexit_link = bpf_program__attach_trace(prog); + if (!ASSERT_OK_PTR(fexit_link, "attach_trace")) + goto out; + } + err = bpf_prog_test_run_opts(main_fd, &topts); ASSERT_OK(err, "tailcall"); ASSERT_EQ(topts.retval, 1, "tailcall retval"); data_map = bpf_object__find_map_by_name(obj, "tailcall.bss"); if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map))) - return; + goto out; data_fd = bpf_map__fd(data_map); - if (CHECK_FAIL(map_fd < 0)) - return; + if (CHECK_FAIL(data_fd < 0)) + goto out; i = 0; err = bpf_map_lookup_elem(data_fd, &i, &val); ASSERT_OK(err, "tailcall count"); ASSERT_EQ(val, 33, "tailcall count"); + if (test_fentry) { + data_map = bpf_object__find_map_by_name(fentry_obj, ".bss"); + if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map), + "find tailcall_bpf2bpf_fentry.bss map")) + goto out; + + data_fd = bpf_map__fd(data_map); + if (!ASSERT_FALSE(data_fd < 0, + "find tailcall_bpf2bpf_fentry.bss map fd")) + goto out; + + i = 0; + err = bpf_map_lookup_elem(data_fd, &i, &val); + ASSERT_OK(err, "fentry count"); + ASSERT_EQ(val, 33, "fentry count"); + } + + if (test_fexit) { + data_map = bpf_object__find_map_by_name(fexit_obj, ".bss"); + if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map), + "find tailcall_bpf2bpf_fexit.bss map")) + goto out; + + data_fd = bpf_map__fd(data_map); + if (!ASSERT_FALSE(data_fd < 0, + "find tailcall_bpf2bpf_fexit.bss map fd")) + goto out; + + i = 0; + err = bpf_map_lookup_elem(data_fd, &i, &val); + ASSERT_OK(err, "fexit count"); + ASSERT_EQ(val, 33, "fexit count"); + } + i = 0; err = bpf_map_delete_elem(map_fd, &i); if (CHECK_FAIL(err)) @@ -291,6 +375,10 @@ static void test_tailcall_count(const char *which) ASSERT_OK(err, "tailcall"); ASSERT_OK(topts.retval, "tailcall retval"); out: + bpf_link__destroy(fentry_link); + bpf_link__destroy(fexit_link); + bpf_object__close(fentry_obj); + bpf_object__close(fexit_obj); bpf_object__close(obj); } @@ -299,7 +387,7 @@ out: */ static void test_tailcall_3(void) { - test_tailcall_count("tailcall3.bpf.o"); + test_tailcall_count("tailcall3.bpf.o", false, false); } /* test_tailcall_6 checks that the count value of the tail call limit @@ -307,7 +395,7 @@ static void test_tailcall_3(void) */ static void test_tailcall_6(void) { - test_tailcall_count("tailcall6.bpf.o"); + test_tailcall_count("tailcall6.bpf.o", false, false); } /* test_tailcall_4 checks that the kernel properly selects indirect jump @@ -352,11 +440,11 @@ static void test_tailcall_4(void) data_map = bpf_object__find_map_by_name(obj, "tailcall.bss"); if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map))) - return; + goto out; data_fd = bpf_map__fd(data_map); - if (CHECK_FAIL(map_fd < 0)) - return; + if (CHECK_FAIL(data_fd < 0)) + goto out; for (i = 0; i < bpf_map__max_entries(prog_array); i++) { snprintf(prog_name, sizeof(prog_name), "classifier_%d", i); @@ -442,11 +530,11 @@ static void test_tailcall_5(void) data_map = bpf_object__find_map_by_name(obj, "tailcall.bss"); if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map))) - return; + goto out; data_fd = bpf_map__fd(data_map); - if (CHECK_FAIL(map_fd < 0)) - return; + if (CHECK_FAIL(data_fd < 0)) + goto out; for (i = 0; i < bpf_map__max_entries(prog_array); i++) { snprintf(prog_name, sizeof(prog_name), "classifier_%d", i); @@ -631,11 +719,11 @@ static void test_tailcall_bpf2bpf_2(void) data_map = bpf_object__find_map_by_name(obj, "tailcall.bss"); if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map))) - return; + goto out; data_fd = bpf_map__fd(data_map); - if (CHECK_FAIL(map_fd < 0)) - return; + if (CHECK_FAIL(data_fd < 0)) + goto out; i = 0; err = bpf_map_lookup_elem(data_fd, &i, &val); @@ -805,11 +893,11 @@ static void test_tailcall_bpf2bpf_4(bool noise) data_map = bpf_object__find_map_by_name(obj, "tailcall.bss"); if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map))) - return; + goto out; data_fd = bpf_map__fd(data_map); - if (CHECK_FAIL(map_fd < 0)) - return; + if (CHECK_FAIL(data_fd < 0)) + goto out; i = 0; val.noise = noise; @@ -872,7 +960,7 @@ static void test_tailcall_bpf2bpf_6(void) ASSERT_EQ(topts.retval, 0, "tailcall retval"); data_fd = bpf_map__fd(obj->maps.bss); - if (!ASSERT_GE(map_fd, 0, "bss map fd")) + if (!ASSERT_GE(data_fd, 0, "bss map fd")) goto out; i = 0; @@ -884,6 +972,139 @@ out: tailcall_bpf2bpf6__destroy(obj); } +/* test_tailcall_bpf2bpf_fentry checks that the count value of the tail call + * limit enforcement matches with expectations when tailcall is preceded with + * bpf2bpf call, and the bpf2bpf call is traced by fentry. + */ +static void test_tailcall_bpf2bpf_fentry(void) +{ + test_tailcall_count("tailcall_bpf2bpf2.bpf.o", true, false); +} + +/* test_tailcall_bpf2bpf_fexit checks that the count value of the tail call + * limit enforcement matches with expectations when tailcall is preceded with + * bpf2bpf call, and the bpf2bpf call is traced by fexit. + */ +static void test_tailcall_bpf2bpf_fexit(void) +{ + test_tailcall_count("tailcall_bpf2bpf2.bpf.o", false, true); +} + +/* test_tailcall_bpf2bpf_fentry_fexit checks that the count value of the tail + * call limit enforcement matches with expectations when tailcall is preceded + * with bpf2bpf call, and the bpf2bpf call is traced by both fentry and fexit. + */ +static void test_tailcall_bpf2bpf_fentry_fexit(void) +{ + test_tailcall_count("tailcall_bpf2bpf2.bpf.o", true, true); +} + +/* test_tailcall_bpf2bpf_fentry_entry checks that the count value of the tail + * call limit enforcement matches with expectations when tailcall is preceded + * with bpf2bpf call, and the bpf2bpf caller is traced by fentry. + */ +static void test_tailcall_bpf2bpf_fentry_entry(void) +{ + struct bpf_object *tgt_obj = NULL, *fentry_obj = NULL; + int err, map_fd, prog_fd, data_fd, i, val; + struct bpf_map *prog_array, *data_map; + struct bpf_link *fentry_link = NULL; + struct bpf_program *prog; + char buff[128] = {}; + + LIBBPF_OPTS(bpf_test_run_opts, topts, + .data_in = buff, + .data_size_in = sizeof(buff), + .repeat = 1, + ); + + err = bpf_prog_test_load("tailcall_bpf2bpf2.bpf.o", + BPF_PROG_TYPE_SCHED_CLS, + &tgt_obj, &prog_fd); + if (!ASSERT_OK(err, "load tgt_obj")) + return; + + prog_array = bpf_object__find_map_by_name(tgt_obj, "jmp_table"); + if (!ASSERT_OK_PTR(prog_array, "find jmp_table map")) + goto out; + + map_fd = bpf_map__fd(prog_array); + if (!ASSERT_FALSE(map_fd < 0, "find jmp_table map fd")) + goto out; + + prog = bpf_object__find_program_by_name(tgt_obj, "classifier_0"); + if (!ASSERT_OK_PTR(prog, "find classifier_0 prog")) + goto out; + + prog_fd = bpf_program__fd(prog); + if (!ASSERT_FALSE(prog_fd < 0, "find classifier_0 prog fd")) + goto out; + + i = 0; + err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY); + if (!ASSERT_OK(err, "update jmp_table")) + goto out; + + fentry_obj = bpf_object__open_file("tailcall_bpf2bpf_fentry.bpf.o", + NULL); + if (!ASSERT_OK_PTR(fentry_obj, "open fentry_obj file")) + goto out; + + prog = bpf_object__find_program_by_name(fentry_obj, "fentry"); + if (!ASSERT_OK_PTR(prog, "find fentry prog")) + goto out; + + err = bpf_program__set_attach_target(prog, prog_fd, "classifier_0"); + if (!ASSERT_OK(err, "set_attach_target classifier_0")) + goto out; + + err = bpf_object__load(fentry_obj); + if (!ASSERT_OK(err, "load fentry_obj")) + goto out; + + fentry_link = bpf_program__attach_trace(prog); + if (!ASSERT_OK_PTR(fentry_link, "attach_trace")) + goto out; + + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "tailcall"); + ASSERT_EQ(topts.retval, 1, "tailcall retval"); + + data_map = bpf_object__find_map_by_name(tgt_obj, "tailcall.bss"); + if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map), + "find tailcall.bss map")) + goto out; + + data_fd = bpf_map__fd(data_map); + if (!ASSERT_FALSE(data_fd < 0, "find tailcall.bss map fd")) + goto out; + + i = 0; + err = bpf_map_lookup_elem(data_fd, &i, &val); + ASSERT_OK(err, "tailcall count"); + ASSERT_EQ(val, 34, "tailcall count"); + + data_map = bpf_object__find_map_by_name(fentry_obj, ".bss"); + if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map), + "find tailcall_bpf2bpf_fentry.bss map")) + goto out; + + data_fd = bpf_map__fd(data_map); + if (!ASSERT_FALSE(data_fd < 0, + "find tailcall_bpf2bpf_fentry.bss map fd")) + goto out; + + i = 0; + err = bpf_map_lookup_elem(data_fd, &i, &val); + ASSERT_OK(err, "fentry count"); + ASSERT_EQ(val, 1, "fentry count"); + +out: + bpf_link__destroy(fentry_link); + bpf_object__close(fentry_obj); + bpf_object__close(tgt_obj); +} + void test_tailcalls(void) { if (test__start_subtest("tailcall_1")) @@ -910,4 +1131,12 @@ void test_tailcalls(void) test_tailcall_bpf2bpf_4(true); if (test__start_subtest("tailcall_bpf2bpf_6")) test_tailcall_bpf2bpf_6(); + if (test__start_subtest("tailcall_bpf2bpf_fentry")) + test_tailcall_bpf2bpf_fentry(); + if (test__start_subtest("tailcall_bpf2bpf_fexit")) + test_tailcall_bpf2bpf_fexit(); + if (test__start_subtest("tailcall_bpf2bpf_fentry_fexit")) + test_tailcall_bpf2bpf_fentry_fexit(); + if (test__start_subtest("tailcall_bpf2bpf_fentry_entry")) + test_tailcall_bpf2bpf_fentry_entry(); } diff --git a/tools/testing/selftests/bpf/prog_tests/timer.c b/tools/testing/selftests/bpf/prog_tests/timer.c index ce2c61d62fc6..760ad96b4be0 100644 --- a/tools/testing/selftests/bpf/prog_tests/timer.c +++ b/tools/testing/selftests/bpf/prog_tests/timer.c @@ -15,6 +15,7 @@ static int timer(struct timer *timer_skel) ASSERT_EQ(timer_skel->data->callback_check, 52, "callback_check1"); ASSERT_EQ(timer_skel->data->callback2_check, 52, "callback2_check1"); + ASSERT_EQ(timer_skel->bss->pinned_callback_check, 0, "pinned_callback_check1"); prog_fd = bpf_program__fd(timer_skel->progs.test1); err = bpf_prog_test_run_opts(prog_fd, &topts); @@ -33,6 +34,9 @@ static int timer(struct timer *timer_skel) /* check that timer_cb3() was executed twice */ ASSERT_EQ(timer_skel->bss->abs_data, 12, "abs_data"); + /* check that timer_cb_pinned() was executed twice */ + ASSERT_EQ(timer_skel->bss->pinned_callback_check, 2, "pinned_callback_check"); + /* check that there were no errors in timer execution */ ASSERT_EQ(timer_skel->bss->err, 0, "err"); diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe.c b/tools/testing/selftests/bpf/prog_tests/uprobe.c new file mode 100644 index 000000000000..cf3e0e7a64fa --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/uprobe.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Hengqi Chen */ + +#include <test_progs.h> +#include "test_uprobe.skel.h" + +static FILE *urand_spawn(int *pid) +{ + FILE *f; + + /* urandom_read's stdout is wired into f */ + f = popen("./urandom_read 1 report-pid", "r"); + if (!f) + return NULL; + + if (fscanf(f, "%d", pid) != 1) { + pclose(f); + errno = EINVAL; + return NULL; + } + + return f; +} + +static int urand_trigger(FILE **urand_pipe) +{ + int exit_code; + + /* pclose() waits for child process to exit and returns their exit code */ + exit_code = pclose(*urand_pipe); + *urand_pipe = NULL; + + return exit_code; +} + +void test_uprobe(void) +{ + LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts); + struct test_uprobe *skel; + FILE *urand_pipe = NULL; + int urand_pid = 0, err; + + skel = test_uprobe__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + return; + + urand_pipe = urand_spawn(&urand_pid); + if (!ASSERT_OK_PTR(urand_pipe, "urand_spawn")) + goto cleanup; + + skel->bss->my_pid = urand_pid; + + /* Manual attach uprobe to urandlib_api + * There are two `urandlib_api` symbols in .dynsym section: + * - urandlib_api@LIBURANDOM_READ_1.0.0 + * - urandlib_api@@LIBURANDOM_READ_2.0.0 + * Both are global bind and would cause a conflict if user + * specify the symbol name without a version suffix + */ + uprobe_opts.func_name = "urandlib_api"; + skel->links.test4 = bpf_program__attach_uprobe_opts(skel->progs.test4, + urand_pid, + "./liburandom_read.so", + 0 /* offset */, + &uprobe_opts); + if (!ASSERT_ERR_PTR(skel->links.test4, "urandlib_api_attach_conflict")) + goto cleanup; + + uprobe_opts.func_name = "urandlib_api@LIBURANDOM_READ_1.0.0"; + skel->links.test4 = bpf_program__attach_uprobe_opts(skel->progs.test4, + urand_pid, + "./liburandom_read.so", + 0 /* offset */, + &uprobe_opts); + if (!ASSERT_OK_PTR(skel->links.test4, "urandlib_api_attach_ok")) + goto cleanup; + + /* Auto attach 3 u[ret]probes to urandlib_api_sameoffset */ + err = test_uprobe__attach(skel); + if (!ASSERT_OK(err, "skel_attach")) + goto cleanup; + + /* trigger urandom_read */ + ASSERT_OK(urand_trigger(&urand_pipe), "urand_exit_code"); + + ASSERT_EQ(skel->bss->test1_result, 1, "urandlib_api_sameoffset"); + ASSERT_EQ(skel->bss->test2_result, 1, "urandlib_api_sameoffset@v1"); + ASSERT_EQ(skel->bss->test3_result, 3, "urandlib_api_sameoffset@@v2"); + ASSERT_EQ(skel->bss->test4_result, 1, "urandlib_api"); + +cleanup: + if (urand_pipe) + pclose(urand_pipe); + test_uprobe__destroy(skel); +} diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c index 626c461fa34d..4439ba9392f8 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -226,7 +226,7 @@ static int verify_xsk_metadata(struct xsk *xsk) __u64 comp_addr; void *data; __u64 addr; - __u32 idx; + __u32 idx = 0; int ret; ret = recvfrom(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, NULL); diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c index dd923dc637d5..dd923dc637d5 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_task_vma.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c diff --git a/tools/testing/selftests/bpf/progs/bpf_misc.h b/tools/testing/selftests/bpf/progs/bpf_misc.h index 38a57a2e70db..799fff4995d8 100644 --- a/tools/testing/selftests/bpf/progs/bpf_misc.h +++ b/tools/testing/selftests/bpf/progs/bpf_misc.h @@ -99,6 +99,9 @@ #elif defined(__TARGET_ARCH_arm64) #define SYSCALL_WRAPPER 1 #define SYS_PREFIX "__arm64_" +#elif defined(__TARGET_ARCH_riscv) +#define SYSCALL_WRAPPER 1 +#define SYS_PREFIX "__riscv_" #else #define SYSCALL_WRAPPER 0 #define SYS_PREFIX "__se_" diff --git a/tools/testing/selftests/bpf/progs/connect_unix_prog.c b/tools/testing/selftests/bpf/progs/connect_unix_prog.c new file mode 100644 index 000000000000..ca8aa2f116b3 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/connect_unix_prog.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite"; + +SEC("cgroup/connect_unix") +int connect_unix_prog(struct bpf_sock_addr *ctx) +{ + struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx); + struct sockaddr_un *sa_kern_unaddr; + __u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) + + sizeof(SERVUN_REWRITE_ADDRESS) - 1; + int ret; + + /* Rewrite destination. */ + ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1); + if (ret) + return 0; + + if (sa_kern->uaddrlen != unaddrlen) + return 0; + + sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr, + bpf_core_type_id_kernel(struct sockaddr_un)); + if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0) + return 0; + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/exceptions.c b/tools/testing/selftests/bpf/progs/exceptions.c new file mode 100644 index 000000000000..2811ee842b01 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/exceptions.c @@ -0,0 +1,368 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include <bpf/bpf_endian.h> +#include "bpf_misc.h" +#include "bpf_experimental.h" + +#ifndef ETH_P_IP +#define ETH_P_IP 0x0800 +#endif + +struct { + __uint(type, BPF_MAP_TYPE_PROG_ARRAY); + __uint(max_entries, 4); + __uint(key_size, sizeof(__u32)); + __uint(value_size, sizeof(__u32)); +} jmp_table SEC(".maps"); + +static __noinline int static_func(u64 i) +{ + bpf_throw(32); + return i; +} + +__noinline int global2static_simple(u64 i) +{ + static_func(i + 2); + return i - 1; +} + +__noinline int global2static(u64 i) +{ + if (i == ETH_P_IP) + bpf_throw(16); + return static_func(i); +} + +static __noinline int static2global(u64 i) +{ + return global2static(i) + i; +} + +SEC("tc") +int exception_throw_always_1(struct __sk_buff *ctx) +{ + bpf_throw(64); + return 0; +} + +/* In this case, the global func will never be seen executing after call to + * static subprog, hence verifier will DCE the remaining instructions. Ensure we + * are resilient to that. + */ +SEC("tc") +int exception_throw_always_2(struct __sk_buff *ctx) +{ + return global2static_simple(ctx->protocol); +} + +SEC("tc") +int exception_throw_unwind_1(struct __sk_buff *ctx) +{ + return static2global(bpf_ntohs(ctx->protocol)); +} + +SEC("tc") +int exception_throw_unwind_2(struct __sk_buff *ctx) +{ + return static2global(bpf_ntohs(ctx->protocol) - 1); +} + +SEC("tc") +int exception_throw_default(struct __sk_buff *ctx) +{ + bpf_throw(0); + return 1; +} + +SEC("tc") +int exception_throw_default_value(struct __sk_buff *ctx) +{ + bpf_throw(5); + return 1; +} + +SEC("tc") +int exception_tail_call_target(struct __sk_buff *ctx) +{ + bpf_throw(16); + return 0; +} + +static __noinline +int exception_tail_call_subprog(struct __sk_buff *ctx) +{ + volatile int ret = 10; + + bpf_tail_call_static(ctx, &jmp_table, 0); + return ret; +} + +SEC("tc") +int exception_tail_call(struct __sk_buff *ctx) { + volatile int ret = 0; + + ret = exception_tail_call_subprog(ctx); + return ret + 8; +} + +__noinline int exception_ext_global(struct __sk_buff *ctx) +{ + volatile int ret = 0; + + return ret; +} + +static __noinline int exception_ext_static(struct __sk_buff *ctx) +{ + return exception_ext_global(ctx); +} + +SEC("tc") +int exception_ext(struct __sk_buff *ctx) +{ + return exception_ext_static(ctx); +} + +__noinline int exception_cb_mod_global(u64 cookie) +{ + volatile int ret = 0; + + return ret; +} + +/* Example of how the exception callback supplied during verification can still + * introduce extensions by calling to dummy global functions, and alter runtime + * behavior. + * + * Right now we don't allow freplace attachment to exception callback itself, + * but if the need arises this restriction is technically feasible to relax in + * the future. + */ +__noinline int exception_cb_mod(u64 cookie) +{ + return exception_cb_mod_global(cookie) + cookie + 10; +} + +SEC("tc") +__exception_cb(exception_cb_mod) +int exception_ext_mod_cb_runtime(struct __sk_buff *ctx) +{ + bpf_throw(25); + return 0; +} + +__noinline static int subprog(struct __sk_buff *ctx) +{ + return bpf_ktime_get_ns(); +} + +__noinline static int throwing_subprog(struct __sk_buff *ctx) +{ + if (ctx->tstamp) + bpf_throw(0); + return bpf_ktime_get_ns(); +} + +__noinline int global_subprog(struct __sk_buff *ctx) +{ + return bpf_ktime_get_ns(); +} + +__noinline int throwing_global_subprog(struct __sk_buff *ctx) +{ + if (ctx->tstamp) + bpf_throw(0); + return bpf_ktime_get_ns(); +} + +SEC("tc") +int exception_throw_subprog(struct __sk_buff *ctx) +{ + switch (ctx->protocol) { + case 1: + return subprog(ctx); + case 2: + return global_subprog(ctx); + case 3: + return throwing_subprog(ctx); + case 4: + return throwing_global_subprog(ctx); + default: + break; + } + bpf_throw(1); + return 0; +} + +__noinline int assert_nz_gfunc(u64 c) +{ + volatile u64 cookie = c; + + bpf_assert(cookie != 0); + return 0; +} + +__noinline int assert_zero_gfunc(u64 c) +{ + volatile u64 cookie = c; + + bpf_assert_eq(cookie, 0); + return 0; +} + +__noinline int assert_neg_gfunc(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_lt(cookie, 0); + return 0; +} + +__noinline int assert_pos_gfunc(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_gt(cookie, 0); + return 0; +} + +__noinline int assert_negeq_gfunc(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_le(cookie, -1); + return 0; +} + +__noinline int assert_poseq_gfunc(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_ge(cookie, 1); + return 0; +} + +__noinline int assert_nz_gfunc_with(u64 c) +{ + volatile u64 cookie = c; + + bpf_assert_with(cookie != 0, cookie + 100); + return 0; +} + +__noinline int assert_zero_gfunc_with(u64 c) +{ + volatile u64 cookie = c; + + bpf_assert_eq_with(cookie, 0, cookie + 100); + return 0; +} + +__noinline int assert_neg_gfunc_with(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_lt_with(cookie, 0, cookie + 100); + return 0; +} + +__noinline int assert_pos_gfunc_with(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_gt_with(cookie, 0, cookie + 100); + return 0; +} + +__noinline int assert_negeq_gfunc_with(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_le_with(cookie, -1, cookie + 100); + return 0; +} + +__noinline int assert_poseq_gfunc_with(s64 c) +{ + volatile s64 cookie = c; + + bpf_assert_ge_with(cookie, 1, cookie + 100); + return 0; +} + +#define check_assert(name, cookie, tag) \ +SEC("tc") \ +int exception##tag##name(struct __sk_buff *ctx) \ +{ \ + return name(cookie) + 1; \ +} + +check_assert(assert_nz_gfunc, 5, _); +check_assert(assert_zero_gfunc, 0, _); +check_assert(assert_neg_gfunc, -100, _); +check_assert(assert_pos_gfunc, 100, _); +check_assert(assert_negeq_gfunc, -1, _); +check_assert(assert_poseq_gfunc, 1, _); + +check_assert(assert_nz_gfunc_with, 5, _); +check_assert(assert_zero_gfunc_with, 0, _); +check_assert(assert_neg_gfunc_with, -100, _); +check_assert(assert_pos_gfunc_with, 100, _); +check_assert(assert_negeq_gfunc_with, -1, _); +check_assert(assert_poseq_gfunc_with, 1, _); + +check_assert(assert_nz_gfunc, 0, _bad_); +check_assert(assert_zero_gfunc, 5, _bad_); +check_assert(assert_neg_gfunc, 100, _bad_); +check_assert(assert_pos_gfunc, -100, _bad_); +check_assert(assert_negeq_gfunc, 1, _bad_); +check_assert(assert_poseq_gfunc, -1, _bad_); + +check_assert(assert_nz_gfunc_with, 0, _bad_); +check_assert(assert_zero_gfunc_with, 5, _bad_); +check_assert(assert_neg_gfunc_with, 100, _bad_); +check_assert(assert_pos_gfunc_with, -100, _bad_); +check_assert(assert_negeq_gfunc_with, 1, _bad_); +check_assert(assert_poseq_gfunc_with, -1, _bad_); + +SEC("tc") +int exception_assert_range(struct __sk_buff *ctx) +{ + u64 time = bpf_ktime_get_ns(); + + bpf_assert_range(time, 0, ~0ULL); + return 1; +} + +SEC("tc") +int exception_assert_range_with(struct __sk_buff *ctx) +{ + u64 time = bpf_ktime_get_ns(); + + bpf_assert_range_with(time, 0, ~0ULL, 10); + return 1; +} + +SEC("tc") +int exception_bad_assert_range(struct __sk_buff *ctx) +{ + u64 time = bpf_ktime_get_ns(); + + bpf_assert_range(time, -100, 100); + return 1; +} + +SEC("tc") +int exception_bad_assert_range_with(struct __sk_buff *ctx) +{ + u64 time = bpf_ktime_get_ns(); + + bpf_assert_range_with(time, -1000, 1000, 10); + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/exceptions_assert.c b/tools/testing/selftests/bpf/progs/exceptions_assert.c new file mode 100644 index 000000000000..e1e5c54a6a11 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/exceptions_assert.c @@ -0,0 +1,135 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <vmlinux.h> +#include <limits.h> +#include <bpf/bpf_tracing.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include <bpf/bpf_endian.h> +#include "bpf_misc.h" +#include "bpf_experimental.h" + +#define check_assert(type, op, name, value) \ + SEC("?tc") \ + __log_level(2) __failure \ + int check_assert_##op##_##name(void *ctx) \ + { \ + type num = bpf_ktime_get_ns(); \ + bpf_assert_##op(num, value); \ + return *(u64 *)num; \ + } + +__msg(": R0_w=-2147483648 R10=fp0") +check_assert(s64, eq, int_min, INT_MIN); +__msg(": R0_w=2147483647 R10=fp0") +check_assert(s64, eq, int_max, INT_MAX); +__msg(": R0_w=0 R10=fp0") +check_assert(s64, eq, zero, 0); +__msg(": R0_w=-9223372036854775808 R1_w=-9223372036854775808 R10=fp0") +check_assert(s64, eq, llong_min, LLONG_MIN); +__msg(": R0_w=9223372036854775807 R1_w=9223372036854775807 R10=fp0") +check_assert(s64, eq, llong_max, LLONG_MAX); + +__msg(": R0_w=scalar(smax=2147483646) R10=fp0") +check_assert(s64, lt, pos, INT_MAX); +__msg(": R0_w=scalar(smax=-1,umin=9223372036854775808,var_off=(0x8000000000000000; 0x7fffffffffffffff))") +check_assert(s64, lt, zero, 0); +__msg(": R0_w=scalar(smax=-2147483649,umin=9223372036854775808,umax=18446744071562067967,var_off=(0x8000000000000000; 0x7fffffffffffffff))") +check_assert(s64, lt, neg, INT_MIN); + +__msg(": R0_w=scalar(smax=2147483647) R10=fp0") +check_assert(s64, le, pos, INT_MAX); +__msg(": R0_w=scalar(smax=0) R10=fp0") +check_assert(s64, le, zero, 0); +__msg(": R0_w=scalar(smax=-2147483648,umin=9223372036854775808,umax=18446744071562067968,var_off=(0x8000000000000000; 0x7fffffffffffffff))") +check_assert(s64, le, neg, INT_MIN); + +__msg(": R0_w=scalar(smin=umin=2147483648,umax=9223372036854775807,var_off=(0x0; 0x7fffffffffffffff))") +check_assert(s64, gt, pos, INT_MAX); +__msg(": R0_w=scalar(smin=umin=1,umax=9223372036854775807,var_off=(0x0; 0x7fffffffffffffff))") +check_assert(s64, gt, zero, 0); +__msg(": R0_w=scalar(smin=-2147483647) R10=fp0") +check_assert(s64, gt, neg, INT_MIN); + +__msg(": R0_w=scalar(smin=umin=2147483647,umax=9223372036854775807,var_off=(0x0; 0x7fffffffffffffff))") +check_assert(s64, ge, pos, INT_MAX); +__msg(": R0_w=scalar(smin=0,umax=9223372036854775807,var_off=(0x0; 0x7fffffffffffffff)) R10=fp0") +check_assert(s64, ge, zero, 0); +__msg(": R0_w=scalar(smin=-2147483648) R10=fp0") +check_assert(s64, ge, neg, INT_MIN); + +SEC("?tc") +__log_level(2) __failure +__msg(": R0=0 R1=ctx(off=0,imm=0) R2=scalar(smin=smin32=-2147483646,smax=smax32=2147483645) R10=fp0") +int check_assert_range_s64(struct __sk_buff *ctx) +{ + struct bpf_sock *sk = ctx->sk; + s64 num; + + _Static_assert(_Generic((sk->rx_queue_mapping), s32: 1, default: 0), "type match"); + if (!sk) + return 0; + num = sk->rx_queue_mapping; + bpf_assert_range(num, INT_MIN + 2, INT_MAX - 2); + return *((u8 *)ctx + num); +} + +SEC("?tc") +__log_level(2) __failure +__msg(": R1=ctx(off=0,imm=0) R2=scalar(smin=umin=smin32=umin32=4096,smax=umax=smax32=umax32=8192,var_off=(0x0; 0x3fff))") +int check_assert_range_u64(struct __sk_buff *ctx) +{ + u64 num = ctx->len; + + bpf_assert_range(num, 4096, 8192); + return *((u8 *)ctx + num); +} + +SEC("?tc") +__log_level(2) __failure +__msg(": R0=0 R1=ctx(off=0,imm=0) R2=4096 R10=fp0") +int check_assert_single_range_s64(struct __sk_buff *ctx) +{ + struct bpf_sock *sk = ctx->sk; + s64 num; + + _Static_assert(_Generic((sk->rx_queue_mapping), s32: 1, default: 0), "type match"); + if (!sk) + return 0; + num = sk->rx_queue_mapping; + + bpf_assert_range(num, 4096, 4096); + return *((u8 *)ctx + num); +} + +SEC("?tc") +__log_level(2) __failure +__msg(": R1=ctx(off=0,imm=0) R2=4096 R10=fp0") +int check_assert_single_range_u64(struct __sk_buff *ctx) +{ + u64 num = ctx->len; + + bpf_assert_range(num, 4096, 4096); + return *((u8 *)ctx + num); +} + +SEC("?tc") +__log_level(2) __failure +__msg(": R1=pkt(off=64,r=64,imm=0) R2=pkt_end(off=0,imm=0) R6=pkt(off=0,r=64,imm=0) R10=fp0") +int check_assert_generic(struct __sk_buff *ctx) +{ + u8 *data_end = (void *)(long)ctx->data_end; + u8 *data = (void *)(long)ctx->data; + + bpf_assert(data + 64 <= data_end); + return data[128]; +} + +SEC("?fentry/bpf_check") +__failure __msg("At program exit the register R0 has value (0x40; 0x0)") +int check_assert_with_return(void *ctx) +{ + bpf_assert_with(!ctx, 64); + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/exceptions_ext.c b/tools/testing/selftests/bpf/progs/exceptions_ext.c new file mode 100644 index 000000000000..743c05185d9b --- /dev/null +++ b/tools/testing/selftests/bpf/progs/exceptions_ext.c @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <vmlinux.h> +#include <bpf/bpf_helpers.h> +#include "bpf_experimental.h" + +SEC("?fentry") +int pfentry(void *ctx) +{ + return 0; +} + +SEC("?fentry") +int throwing_fentry(void *ctx) +{ + bpf_throw(0); + return 0; +} + +__noinline int exception_cb(u64 cookie) +{ + return cookie + 64; +} + +SEC("?freplace") +int extension(struct __sk_buff *ctx) +{ + return 0; +} + +SEC("?freplace") +__exception_cb(exception_cb) +int throwing_exception_cb_extension(u64 cookie) +{ + bpf_throw(32); + return 0; +} + +SEC("?freplace") +__exception_cb(exception_cb) +int throwing_extension(struct __sk_buff *ctx) +{ + bpf_throw(64); + return 0; +} + +SEC("?fexit") +int pfexit(void *ctx) +{ + return 0; +} + +SEC("?fexit") +int throwing_fexit(void *ctx) +{ + bpf_throw(0); + return 0; +} + +SEC("?fmod_ret") +int pfmod_ret(void *ctx) +{ + return 0; +} + +SEC("?fmod_ret") +int throwing_fmod_ret(void *ctx) +{ + bpf_throw(0); + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/exceptions_fail.c b/tools/testing/selftests/bpf/progs/exceptions_fail.c new file mode 100644 index 000000000000..4c39e920dac2 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/exceptions_fail.c @@ -0,0 +1,347 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> + +#include "bpf_misc.h" +#include "bpf_experimental.h" + +extern void bpf_rcu_read_lock(void) __ksym; + +#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8))) + +struct foo { + struct bpf_rb_node node; +}; + +struct hmap_elem { + struct bpf_timer timer; +}; + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __uint(max_entries, 64); + __type(key, int); + __type(value, struct hmap_elem); +} hmap SEC(".maps"); + +private(A) struct bpf_spin_lock lock; +private(A) struct bpf_rb_root rbtree __contains(foo, node); + +__noinline void *exception_cb_bad_ret_type(u64 cookie) +{ + return NULL; +} + +__noinline int exception_cb_bad_arg_0(void) +{ + return 0; +} + +__noinline int exception_cb_bad_arg_2(int a, int b) +{ + return 0; +} + +__noinline int exception_cb_ok_arg_small(int a) +{ + return 0; +} + +SEC("?tc") +__exception_cb(exception_cb_bad_ret_type) +__failure __msg("Global function exception_cb_bad_ret_type() doesn't return scalar.") +int reject_exception_cb_type_1(struct __sk_buff *ctx) +{ + bpf_throw(0); + return 0; +} + +SEC("?tc") +__exception_cb(exception_cb_bad_arg_0) +__failure __msg("exception cb only supports single integer argument") +int reject_exception_cb_type_2(struct __sk_buff *ctx) +{ + bpf_throw(0); + return 0; +} + +SEC("?tc") +__exception_cb(exception_cb_bad_arg_2) +__failure __msg("exception cb only supports single integer argument") +int reject_exception_cb_type_3(struct __sk_buff *ctx) +{ + bpf_throw(0); + return 0; +} + +SEC("?tc") +__exception_cb(exception_cb_ok_arg_small) +__success +int reject_exception_cb_type_4(struct __sk_buff *ctx) +{ + bpf_throw(0); + return 0; +} + +__noinline +static int timer_cb(void *map, int *key, struct bpf_timer *timer) +{ + bpf_throw(0); + return 0; +} + +SEC("?tc") +__failure __msg("cannot be called from callback subprog") +int reject_async_callback_throw(struct __sk_buff *ctx) +{ + struct hmap_elem *elem; + + elem = bpf_map_lookup_elem(&hmap, &(int){0}); + if (!elem) + return 0; + return bpf_timer_set_callback(&elem->timer, timer_cb); +} + +__noinline static int subprog_lock(struct __sk_buff *ctx) +{ + volatile int ret = 0; + + bpf_spin_lock(&lock); + if (ctx->len) + bpf_throw(0); + return ret; +} + +SEC("?tc") +__failure __msg("function calls are not allowed while holding a lock") +int reject_with_lock(void *ctx) +{ + bpf_spin_lock(&lock); + bpf_throw(0); + return 0; +} + +SEC("?tc") +__failure __msg("function calls are not allowed while holding a lock") +int reject_subprog_with_lock(void *ctx) +{ + return subprog_lock(ctx); +} + +SEC("?tc") +__failure __msg("bpf_rcu_read_unlock is missing") +int reject_with_rcu_read_lock(void *ctx) +{ + bpf_rcu_read_lock(); + bpf_throw(0); + return 0; +} + +__noinline static int throwing_subprog(struct __sk_buff *ctx) +{ + if (ctx->len) + bpf_throw(0); + return 0; +} + +SEC("?tc") +__failure __msg("bpf_rcu_read_unlock is missing") +int reject_subprog_with_rcu_read_lock(void *ctx) +{ + bpf_rcu_read_lock(); + return throwing_subprog(ctx); +} + +static bool rbless(struct bpf_rb_node *n1, const struct bpf_rb_node *n2) +{ + bpf_throw(0); + return true; +} + +SEC("?tc") +__failure __msg("function calls are not allowed while holding a lock") +int reject_with_rbtree_add_throw(void *ctx) +{ + struct foo *f; + + f = bpf_obj_new(typeof(*f)); + if (!f) + return 0; + bpf_spin_lock(&lock); + bpf_rbtree_add(&rbtree, &f->node, rbless); + return 0; +} + +SEC("?tc") +__failure __msg("Unreleased reference") +int reject_with_reference(void *ctx) +{ + struct foo *f; + + f = bpf_obj_new(typeof(*f)); + if (!f) + return 0; + bpf_throw(0); + return 0; +} + +__noinline static int subprog_ref(struct __sk_buff *ctx) +{ + struct foo *f; + + f = bpf_obj_new(typeof(*f)); + if (!f) + return 0; + bpf_throw(0); + return 0; +} + +__noinline static int subprog_cb_ref(u32 i, void *ctx) +{ + bpf_throw(0); + return 0; +} + +SEC("?tc") +__failure __msg("Unreleased reference") +int reject_with_cb_reference(void *ctx) +{ + struct foo *f; + + f = bpf_obj_new(typeof(*f)); + if (!f) + return 0; + bpf_loop(5, subprog_cb_ref, NULL, 0); + return 0; +} + +SEC("?tc") +__failure __msg("cannot be called from callback") +int reject_with_cb(void *ctx) +{ + bpf_loop(5, subprog_cb_ref, NULL, 0); + return 0; +} + +SEC("?tc") +__failure __msg("Unreleased reference") +int reject_with_subprog_reference(void *ctx) +{ + return subprog_ref(ctx) + 1; +} + +__noinline int throwing_exception_cb(u64 c) +{ + bpf_throw(0); + return c; +} + +__noinline int exception_cb1(u64 c) +{ + return c; +} + +__noinline int exception_cb2(u64 c) +{ + return c; +} + +static __noinline int static_func(struct __sk_buff *ctx) +{ + return exception_cb1(ctx->tstamp); +} + +__noinline int global_func(struct __sk_buff *ctx) +{ + return exception_cb1(ctx->tstamp); +} + +SEC("?tc") +__exception_cb(throwing_exception_cb) +__failure __msg("cannot be called from callback subprog") +int reject_throwing_exception_cb(struct __sk_buff *ctx) +{ + return 0; +} + +SEC("?tc") +__exception_cb(exception_cb1) +__failure __msg("cannot call exception cb directly") +int reject_exception_cb_call_global_func(struct __sk_buff *ctx) +{ + return global_func(ctx); +} + +SEC("?tc") +__exception_cb(exception_cb1) +__failure __msg("cannot call exception cb directly") +int reject_exception_cb_call_static_func(struct __sk_buff *ctx) +{ + return static_func(ctx); +} + +SEC("?tc") +__exception_cb(exception_cb1) +__exception_cb(exception_cb2) +__failure __msg("multiple exception callback tags for main subprog") +int reject_multiple_exception_cb(struct __sk_buff *ctx) +{ + bpf_throw(0); + return 16; +} + +__noinline int exception_cb_bad_ret(u64 c) +{ + return c; +} + +SEC("?fentry/bpf_check") +__exception_cb(exception_cb_bad_ret) +__failure __msg("At program exit the register R0 has unknown scalar value should") +int reject_set_exception_cb_bad_ret1(void *ctx) +{ + return 0; +} + +SEC("?fentry/bpf_check") +__failure __msg("At program exit the register R0 has value (0x40; 0x0) should") +int reject_set_exception_cb_bad_ret2(void *ctx) +{ + bpf_throw(64); + return 0; +} + +__noinline static int loop_cb1(u32 index, int *ctx) +{ + bpf_throw(0); + return 0; +} + +__noinline static int loop_cb2(u32 index, int *ctx) +{ + bpf_throw(0); + return 0; +} + +SEC("?tc") +__failure __msg("cannot be called from callback") +int reject_exception_throw_cb(struct __sk_buff *ctx) +{ + bpf_loop(5, loop_cb1, NULL, 0); + return 0; +} + +SEC("?tc") +__failure __msg("cannot be called from callback") +int reject_exception_throw_cb_diff(struct __sk_buff *ctx) +{ + if (ctx->protocol) + bpf_loop(5, loop_cb1, NULL, 0); + else + bpf_loop(5, loop_cb2, NULL, 0); + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/getpeername_unix_prog.c b/tools/testing/selftests/bpf/progs/getpeername_unix_prog.c new file mode 100644 index 000000000000..9c078f34bbb2 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getpeername_unix_prog.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite"; + +SEC("cgroup/getpeername_unix") +int getpeername_unix_prog(struct bpf_sock_addr *ctx) +{ + struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx); + struct sockaddr_un *sa_kern_unaddr; + __u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) + + sizeof(SERVUN_REWRITE_ADDRESS) - 1; + int ret; + + ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1); + if (ret) + return 1; + + if (sa_kern->uaddrlen != unaddrlen) + return 1; + + sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr, + bpf_core_type_id_kernel(struct sockaddr_un)); + if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0) + return 1; + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/getsockname_unix_prog.c b/tools/testing/selftests/bpf/progs/getsockname_unix_prog.c new file mode 100644 index 000000000000..ac7145111497 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getsockname_unix_prog.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite"; + +SEC("cgroup/getsockname_unix") +int getsockname_unix_prog(struct bpf_sock_addr *ctx) +{ + struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx); + struct sockaddr_un *sa_kern_unaddr; + __u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) + + sizeof(SERVUN_REWRITE_ADDRESS) - 1; + int ret; + + ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1); + if (ret) + return 1; + + if (sa_kern->uaddrlen != unaddrlen) + return 1; + + sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr, + bpf_core_type_id_kernel(struct sockaddr_un)); + if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0) + return 1; + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/iters_task_vma.c b/tools/testing/selftests/bpf/progs/iters_task_vma.c new file mode 100644 index 000000000000..44edecfdfaee --- /dev/null +++ b/tools/testing/selftests/bpf/progs/iters_task_vma.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" +#include "bpf_experimental.h" +#include <bpf/bpf_helpers.h> +#include "bpf_misc.h" + +pid_t target_pid = 0; +unsigned int vmas_seen = 0; + +struct { + __u64 vm_start; + __u64 vm_end; +} vm_ranges[1000]; + +SEC("raw_tp/sys_enter") +int iter_task_vma_for_each(const void *ctx) +{ + struct task_struct *task = bpf_get_current_task_btf(); + struct vm_area_struct *vma; + unsigned int seen = 0; + + if (task->pid != target_pid) + return 0; + + if (vmas_seen) + return 0; + + bpf_for_each(task_vma, vma, task, 0) { + if (seen >= 1000) + break; + + vm_ranges[seen].vm_start = vma->vm_start; + vm_ranges[seen].vm_end = vma->vm_end; + seen++; + } + + vmas_seen = seen; + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/missed_kprobe.c b/tools/testing/selftests/bpf/progs/missed_kprobe.c new file mode 100644 index 000000000000..7f9ef701f5de --- /dev/null +++ b/tools/testing/selftests/bpf/progs/missed_kprobe.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include "../bpf_testmod/bpf_testmod_kfunc.h" + +char _license[] SEC("license") = "GPL"; + +/* + * No tests in here, just to trigger 'bpf_fentry_test*' + * through tracing test_run + */ +SEC("fentry/bpf_modify_return_test") +int BPF_PROG(trigger) +{ + return 0; +} + +SEC("kprobe/bpf_fentry_test1") +int test1(struct pt_regs *ctx) +{ + bpf_kfunc_common_test(); + return 0; +} + +SEC("kprobe/bpf_kfunc_common_test") +int test2(struct pt_regs *ctx) +{ + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/missed_kprobe_recursion.c b/tools/testing/selftests/bpf/progs/missed_kprobe_recursion.c new file mode 100644 index 000000000000..8ea71cbd6c45 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/missed_kprobe_recursion.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include "../bpf_testmod/bpf_testmod_kfunc.h" + +char _license[] SEC("license") = "GPL"; + +/* + * No tests in here, just to trigger 'bpf_fentry_test*' + * through tracing test_run + */ +SEC("fentry/bpf_modify_return_test") +int BPF_PROG(trigger) +{ + return 0; +} + +SEC("kprobe.multi/bpf_fentry_test1") +int test1(struct pt_regs *ctx) +{ + bpf_kfunc_common_test(); + return 0; +} + +SEC("kprobe/bpf_kfunc_common_test") +int test2(struct pt_regs *ctx) +{ + return 0; +} + +SEC("kprobe/bpf_kfunc_common_test") +int test3(struct pt_regs *ctx) +{ + return 0; +} + +SEC("kprobe/bpf_kfunc_common_test") +int test4(struct pt_regs *ctx) +{ + return 0; +} + +SEC("kprobe.multi/bpf_kfunc_common_test") +int test5(struct pt_regs *ctx) +{ + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/missed_tp_recursion.c b/tools/testing/selftests/bpf/progs/missed_tp_recursion.c new file mode 100644 index 000000000000..762385f827c5 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/missed_tp_recursion.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +char _license[] SEC("license") = "GPL"; + +/* + * No tests in here, just to trigger 'bpf_fentry_test*' + * through tracing test_run + */ +SEC("fentry/bpf_modify_return_test") +int BPF_PROG(trigger) +{ + return 0; +} + +SEC("kprobe/bpf_fentry_test1") +int test1(struct pt_regs *ctx) +{ + bpf_printk("test"); + return 0; +} + +SEC("tp/bpf_trace/bpf_trace_printk") +int test2(struct pt_regs *ctx) +{ + return 0; +} + +SEC("tp/bpf_trace/bpf_trace_printk") +int test3(struct pt_regs *ctx) +{ + return 0; +} + +SEC("tp/bpf_trace/bpf_trace_printk") +int test4(struct pt_regs *ctx) +{ + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_array.c b/tools/testing/selftests/bpf/progs/percpu_alloc_array.c new file mode 100644 index 000000000000..37c2d2608ec0 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/percpu_alloc_array.c @@ -0,0 +1,190 @@ +#include "bpf_experimental.h" + +struct val_t { + long b, c, d; +}; + +struct elem { + long sum; + struct val_t __percpu_kptr *pc; +}; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 1); + __type(key, int); + __type(value, struct elem); +} array SEC(".maps"); + +void bpf_rcu_read_lock(void) __ksym; +void bpf_rcu_read_unlock(void) __ksym; + +const volatile int nr_cpus; + +/* Initialize the percpu object */ +SEC("?fentry/bpf_fentry_test1") +int BPF_PROG(test_array_map_1) +{ + struct val_t __percpu_kptr *p; + struct elem *e; + int index = 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + p = bpf_percpu_obj_new(struct val_t); + if (!p) + return 0; + + p = bpf_kptr_xchg(&e->pc, p); + if (p) + bpf_percpu_obj_drop(p); + + return 0; +} + +/* Update percpu data */ +SEC("?fentry/bpf_fentry_test2") +int BPF_PROG(test_array_map_2) +{ + struct val_t __percpu_kptr *p; + struct val_t *v; + struct elem *e; + int index = 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + p = e->pc; + if (!p) + return 0; + + v = bpf_per_cpu_ptr(p, 0); + if (!v) + return 0; + v->c = 1; + v->d = 2; + + return 0; +} + +int cpu0_field_d, sum_field_c; +int my_pid; + +/* Summarize percpu data */ +SEC("?fentry/bpf_fentry_test3") +int BPF_PROG(test_array_map_3) +{ + struct val_t __percpu_kptr *p; + int i, index = 0; + struct val_t *v; + struct elem *e; + + if ((bpf_get_current_pid_tgid() >> 32) != my_pid) + return 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + p = e->pc; + if (!p) + return 0; + + bpf_for(i, 0, nr_cpus) { + v = bpf_per_cpu_ptr(p, i); + if (v) { + if (i == 0) + cpu0_field_d = v->d; + sum_field_c += v->c; + } + } + + return 0; +} + +/* Explicitly free allocated percpu data */ +SEC("?fentry/bpf_fentry_test4") +int BPF_PROG(test_array_map_4) +{ + struct val_t __percpu_kptr *p; + struct elem *e; + int index = 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + /* delete */ + p = bpf_kptr_xchg(&e->pc, NULL); + if (p) { + bpf_percpu_obj_drop(p); + } + + return 0; +} + +SEC("?fentry.s/bpf_fentry_test1") +int BPF_PROG(test_array_map_10) +{ + struct val_t __percpu_kptr *p, *p1; + int i, index = 0; + struct val_t *v; + struct elem *e; + + if ((bpf_get_current_pid_tgid() >> 32) != my_pid) + return 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + bpf_rcu_read_lock(); + p = e->pc; + if (!p) { + p = bpf_percpu_obj_new(struct val_t); + if (!p) + goto out; + + p1 = bpf_kptr_xchg(&e->pc, p); + if (p1) { + /* race condition */ + bpf_percpu_obj_drop(p1); + } + } + + v = bpf_this_cpu_ptr(p); + v->c = 3; + v = bpf_this_cpu_ptr(p); + v->c = 0; + + v = bpf_per_cpu_ptr(p, 0); + if (!v) + goto out; + v->c = 1; + v->d = 2; + + /* delete */ + p1 = bpf_kptr_xchg(&e->pc, NULL); + if (!p1) + goto out; + + bpf_for(i, 0, nr_cpus) { + v = bpf_per_cpu_ptr(p, i); + if (v) { + if (i == 0) + cpu0_field_d = v->d; + sum_field_c += v->c; + } + } + + /* finally release p */ + bpf_percpu_obj_drop(p1); +out: + bpf_rcu_read_unlock(); + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_cgrp_local_storage.c b/tools/testing/selftests/bpf/progs/percpu_alloc_cgrp_local_storage.c new file mode 100644 index 000000000000..a2acf9aa6c24 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/percpu_alloc_cgrp_local_storage.c @@ -0,0 +1,109 @@ +#include "bpf_experimental.h" + +struct val_t { + long b, c, d; +}; + +struct elem { + long sum; + struct val_t __percpu_kptr *pc; +}; + +struct { + __uint(type, BPF_MAP_TYPE_CGRP_STORAGE); + __uint(map_flags, BPF_F_NO_PREALLOC); + __type(key, int); + __type(value, struct elem); +} cgrp SEC(".maps"); + +const volatile int nr_cpus; + +/* Initialize the percpu object */ +SEC("fentry/bpf_fentry_test1") +int BPF_PROG(test_cgrp_local_storage_1) +{ + struct task_struct *task; + struct val_t __percpu_kptr *p; + struct elem *e; + + task = bpf_get_current_task_btf(); + e = bpf_cgrp_storage_get(&cgrp, task->cgroups->dfl_cgrp, 0, + BPF_LOCAL_STORAGE_GET_F_CREATE); + if (!e) + return 0; + + p = bpf_percpu_obj_new(struct val_t); + if (!p) + return 0; + + p = bpf_kptr_xchg(&e->pc, p); + if (p) + bpf_percpu_obj_drop(p); + + return 0; +} + +/* Percpu data collection */ +SEC("fentry/bpf_fentry_test2") +int BPF_PROG(test_cgrp_local_storage_2) +{ + struct task_struct *task; + struct val_t __percpu_kptr *p; + struct val_t *v; + struct elem *e; + + task = bpf_get_current_task_btf(); + e = bpf_cgrp_storage_get(&cgrp, task->cgroups->dfl_cgrp, 0, 0); + if (!e) + return 0; + + p = e->pc; + if (!p) + return 0; + + v = bpf_per_cpu_ptr(p, 0); + if (!v) + return 0; + v->c = 1; + v->d = 2; + return 0; +} + +int cpu0_field_d, sum_field_c; +int my_pid; + +/* Summarize percpu data collection */ +SEC("fentry/bpf_fentry_test3") +int BPF_PROG(test_cgrp_local_storage_3) +{ + struct task_struct *task; + struct val_t __percpu_kptr *p; + struct val_t *v; + struct elem *e; + int i; + + if ((bpf_get_current_pid_tgid() >> 32) != my_pid) + return 0; + + task = bpf_get_current_task_btf(); + e = bpf_cgrp_storage_get(&cgrp, task->cgroups->dfl_cgrp, 0, 0); + if (!e) + return 0; + + p = e->pc; + if (!p) + return 0; + + bpf_for(i, 0, nr_cpus) { + v = bpf_per_cpu_ptr(p, i); + if (v) { + if (i == 0) + cpu0_field_d = v->d; + sum_field_c += v->c; + } + } + + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c b/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c new file mode 100644 index 000000000000..1a891d30f1fe --- /dev/null +++ b/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c @@ -0,0 +1,164 @@ +#include "bpf_experimental.h" +#include "bpf_misc.h" + +struct val_t { + long b, c, d; +}; + +struct val2_t { + long b; +}; + +struct val_with_ptr_t { + char *p; +}; + +struct val_with_rb_root_t { + struct bpf_spin_lock lock; +}; + +struct elem { + long sum; + struct val_t __percpu_kptr *pc; +}; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 1); + __type(key, int); + __type(value, struct elem); +} array SEC(".maps"); + +long ret; + +SEC("?fentry/bpf_fentry_test1") +__failure __msg("store to referenced kptr disallowed") +int BPF_PROG(test_array_map_1) +{ + struct val_t __percpu_kptr *p; + struct elem *e; + int index = 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + p = bpf_percpu_obj_new(struct val_t); + if (!p) + return 0; + + p = bpf_kptr_xchg(&e->pc, p); + if (p) + bpf_percpu_obj_drop(p); + + e->pc = (struct val_t __percpu_kptr *)ret; + return 0; +} + +SEC("?fentry/bpf_fentry_test1") +__failure __msg("invalid kptr access, R2 type=percpu_ptr_val2_t expected=ptr_val_t") +int BPF_PROG(test_array_map_2) +{ + struct val2_t __percpu_kptr *p2; + struct val_t __percpu_kptr *p; + struct elem *e; + int index = 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + p2 = bpf_percpu_obj_new(struct val2_t); + if (!p2) + return 0; + + p = bpf_kptr_xchg(&e->pc, p2); + if (p) + bpf_percpu_obj_drop(p); + + return 0; +} + +SEC("?fentry.s/bpf_fentry_test1") +__failure __msg("R1 type=scalar expected=percpu_ptr_, percpu_rcu_ptr_, percpu_trusted_ptr_") +int BPF_PROG(test_array_map_3) +{ + struct val_t __percpu_kptr *p, *p1; + struct val_t *v; + struct elem *e; + int index = 0; + + e = bpf_map_lookup_elem(&array, &index); + if (!e) + return 0; + + p = bpf_percpu_obj_new(struct val_t); + if (!p) + return 0; + + p1 = bpf_kptr_xchg(&e->pc, p); + if (p1) + bpf_percpu_obj_drop(p1); + + v = bpf_this_cpu_ptr(p); + ret = v->b; + return 0; +} + +SEC("?fentry.s/bpf_fentry_test1") +__failure __msg("arg#0 expected for bpf_percpu_obj_drop_impl()") +int BPF_PROG(test_array_map_4) +{ + struct val_t __percpu_kptr *p; + + p = bpf_percpu_obj_new(struct val_t); + if (!p) + return 0; + + bpf_obj_drop(p); + return 0; +} + +SEC("?fentry.s/bpf_fentry_test1") +__failure __msg("arg#0 expected for bpf_obj_drop_impl()") +int BPF_PROG(test_array_map_5) +{ + struct val_t *p; + + p = bpf_obj_new(struct val_t); + if (!p) + return 0; + + bpf_percpu_obj_drop(p); + return 0; +} + +SEC("?fentry.s/bpf_fentry_test1") +__failure __msg("bpf_percpu_obj_new type ID argument must be of a struct of scalars") +int BPF_PROG(test_array_map_6) +{ + struct val_with_ptr_t __percpu_kptr *p; + + p = bpf_percpu_obj_new(struct val_with_ptr_t); + if (!p) + return 0; + + bpf_percpu_obj_drop(p); + return 0; +} + +SEC("?fentry.s/bpf_fentry_test1") +__failure __msg("bpf_percpu_obj_new type ID argument must not contain special fields") +int BPF_PROG(test_array_map_7) +{ + struct val_with_rb_root_t __percpu_kptr *p; + + p = bpf_percpu_obj_new(struct val_with_rb_root_t); + if (!p) + return 0; + + bpf_percpu_obj_drop(p); + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/preempted_bpf_ma_op.c b/tools/testing/selftests/bpf/progs/preempted_bpf_ma_op.c new file mode 100644 index 000000000000..55907ef961bf --- /dev/null +++ b/tools/testing/selftests/bpf/progs/preempted_bpf_ma_op.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2023. Huawei Technologies Co., Ltd */ +#include <vmlinux.h> +#include <bpf/bpf_tracing.h> +#include <bpf/bpf_helpers.h> + +#include "bpf_experimental.h" + +struct bin_data { + char data[256]; + struct bpf_spin_lock lock; +}; + +struct map_value { + struct bin_data __kptr * data; +}; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, int); + __type(value, struct map_value); + __uint(max_entries, 2048); +} array SEC(".maps"); + +char _license[] SEC("license") = "GPL"; + +bool nomem_err = false; + +static int del_array(unsigned int i, int *from) +{ + struct map_value *value; + struct bin_data *old; + + value = bpf_map_lookup_elem(&array, from); + if (!value) + return 1; + + old = bpf_kptr_xchg(&value->data, NULL); + if (old) + bpf_obj_drop(old); + + (*from)++; + return 0; +} + +static int add_array(unsigned int i, int *from) +{ + struct bin_data *old, *new; + struct map_value *value; + + value = bpf_map_lookup_elem(&array, from); + if (!value) + return 1; + + new = bpf_obj_new(typeof(*new)); + if (!new) { + nomem_err = true; + return 1; + } + + old = bpf_kptr_xchg(&value->data, new); + if (old) + bpf_obj_drop(old); + + (*from)++; + return 0; +} + +static void del_then_add_array(int from) +{ + int i; + + i = from; + bpf_loop(512, del_array, &i, 0); + + i = from; + bpf_loop(512, add_array, &i, 0); +} + +SEC("fentry/bpf_fentry_test1") +int BPF_PROG2(test0, int, a) +{ + del_then_add_array(0); + return 0; +} + +SEC("fentry/bpf_fentry_test2") +int BPF_PROG2(test1, int, a, u64, b) +{ + del_then_add_array(512); + return 0; +} + +SEC("fentry/bpf_fentry_test3") +int BPF_PROG2(test2, char, a, int, b, u64, c) +{ + del_then_add_array(1024); + return 0; +} + +SEC("fentry/bpf_fentry_test4") +int BPF_PROG2(test3, void *, a, char, b, int, c, u64, d) +{ + del_then_add_array(1536); + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/profiler.inc.h b/tools/testing/selftests/bpf/progs/profiler.inc.h index f799d87e8700..897061930cb7 100644 --- a/tools/testing/selftests/bpf/progs/profiler.inc.h +++ b/tools/testing/selftests/bpf/progs/profiler.inc.h @@ -609,7 +609,7 @@ out: } SEC("tracepoint/syscalls/sys_enter_kill") -int tracepoint__syscalls__sys_enter_kill(struct trace_event_raw_sys_enter* ctx) +int tracepoint__syscalls__sys_enter_kill(struct syscall_trace_enter* ctx) { struct bpf_func_stats_ctx stats_ctx; diff --git a/tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c b/tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c new file mode 100644 index 000000000000..4dfbc8552558 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +__u8 SERVUN_ADDRESS[] = "\0bpf_cgroup_unix_test"; + +SEC("cgroup/recvmsg_unix") +int recvmsg_unix_prog(struct bpf_sock_addr *ctx) +{ + struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx); + struct sockaddr_un *sa_kern_unaddr; + __u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) + + sizeof(SERVUN_ADDRESS) - 1; + int ret; + + ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_ADDRESS, + sizeof(SERVUN_ADDRESS) - 1); + if (ret) + return 1; + + if (sa_kern->uaddrlen != unaddrlen) + return 1; + + sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr, + bpf_core_type_id_kernel(struct sockaddr_un)); + if (memcmp(sa_kern_unaddr->sun_path, SERVUN_ADDRESS, + sizeof(SERVUN_ADDRESS) - 1) != 0) + return 1; + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c b/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c new file mode 100644 index 000000000000..1f67e832666e --- /dev/null +++ b/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite"; + +SEC("cgroup/sendmsg_unix") +int sendmsg_unix_prog(struct bpf_sock_addr *ctx) +{ + struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx); + struct sockaddr_un *sa_kern_unaddr; + __u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) + + sizeof(SERVUN_REWRITE_ADDRESS) - 1; + int ret; + + /* Rewrite destination. */ + ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1); + if (ret) + return 0; + + if (sa_kern->uaddrlen != unaddrlen) + return 0; + + sa_kern_unaddr = bpf_rdonly_cast(sa_kern->uaddr, + bpf_core_type_id_kernel(struct sockaddr_un)); + if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS, + sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0) + return 0; + + return 1; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fentry.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fentry.c new file mode 100644 index 000000000000..8436c6729167 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fentry.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright Leon Hwang */ + +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +int count = 0; + +SEC("fentry/subprog_tail") +int BPF_PROG(fentry, struct sk_buff *skb) +{ + count++; + + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fexit.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fexit.c new file mode 100644 index 000000000000..fe16412c6e6e --- /dev/null +++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fexit.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright Leon Hwang */ + +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +int count = 0; + +SEC("fexit/subprog_tail") +int BPF_PROG(fexit, struct sk_buff *skb) +{ + count++; + + return 0; +} + +char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_ldsx_insn.c b/tools/testing/selftests/bpf/progs/test_ldsx_insn.c index 67c14ba1e87b..3ddcb3777912 100644 --- a/tools/testing/selftests/bpf/progs/test_ldsx_insn.c +++ b/tools/testing/selftests/bpf/progs/test_ldsx_insn.c @@ -6,7 +6,8 @@ #include <bpf/bpf_tracing.h> #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ - (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && __clang_major__ >= 18 + (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ + defined(__TARGET_ARCH_s390)) && __clang_major__ >= 18 const volatile int skip = 0; #else const volatile int skip = 1; @@ -104,7 +105,11 @@ int _tc(volatile struct __sk_buff *skb) "%[tmp_mark] = r1" : [tmp_mark]"=r"(tmp_mark) : [ctx]"r"(skb), - [off_mark]"i"(offsetof(struct __sk_buff, mark)) + [off_mark]"i"(offsetof(struct __sk_buff, mark) +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ + + sizeof(skb->mark) - 1 +#endif + ) : "r1"); #else tmp_mark = (char)skb->mark; diff --git a/tools/testing/selftests/bpf/progs/test_uprobe.c b/tools/testing/selftests/bpf/progs/test_uprobe.c new file mode 100644 index 000000000000..896c88a4960d --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_uprobe.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2023 Hengqi Chen */ + +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> + +pid_t my_pid = 0; + +int test1_result = 0; +int test2_result = 0; +int test3_result = 0; +int test4_result = 0; + +SEC("uprobe/./liburandom_read.so:urandlib_api_sameoffset") +int BPF_UPROBE(test1) +{ + pid_t pid = bpf_get_current_pid_tgid() >> 32; + + if (pid != my_pid) + return 0; + + test1_result = 1; + return 0; +} + +SEC("uprobe/./liburandom_read.so:urandlib_api_sameoffset@LIBURANDOM_READ_1.0.0") +int BPF_UPROBE(test2) +{ + pid_t pid = bpf_get_current_pid_tgid() >> 32; + + if (pid != my_pid) + return 0; + + test2_result = 1; + return 0; +} + +SEC("uretprobe/./liburandom_read.so:urandlib_api_sameoffset@@LIBURANDOM_READ_2.0.0") +int BPF_URETPROBE(test3, int ret) +{ + pid_t pid = bpf_get_current_pid_tgid() >> 32; + + if (pid != my_pid) + return 0; + + test3_result = ret; + return 0; +} + +SEC("uprobe") +int BPF_UPROBE(test4) +{ + pid_t pid = bpf_get_current_pid_tgid() >> 32; + + if (pid != my_pid) + return 0; + + test4_result = 1; + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/test_vmlinux.c b/tools/testing/selftests/bpf/progs/test_vmlinux.c index 4b8e37f7fd06..78b23934d9f8 100644 --- a/tools/testing/selftests/bpf/progs/test_vmlinux.c +++ b/tools/testing/selftests/bpf/progs/test_vmlinux.c @@ -16,12 +16,12 @@ bool kprobe_called = false; bool fentry_called = false; SEC("tp/syscalls/sys_enter_nanosleep") -int handle__tp(struct trace_event_raw_sys_enter *args) +int handle__tp(struct syscall_trace_enter *args) { struct __kernel_timespec *ts; long tv_nsec; - if (args->id != __NR_nanosleep) + if (args->nr != __NR_nanosleep) return 0; ts = (void *)args->args[0]; diff --git a/tools/testing/selftests/bpf/progs/timer.c b/tools/testing/selftests/bpf/progs/timer.c index 9a16d95213e1..8b946c8188c6 100644 --- a/tools/testing/selftests/bpf/progs/timer.c +++ b/tools/testing/selftests/bpf/progs/timer.c @@ -51,7 +51,7 @@ struct { __uint(max_entries, 1); __type(key, int); __type(value, struct elem); -} abs_timer SEC(".maps"); +} abs_timer SEC(".maps"), soft_timer_pinned SEC(".maps"), abs_timer_pinned SEC(".maps"); __u64 bss_data; __u64 abs_data; @@ -59,6 +59,8 @@ __u64 err; __u64 ok; __u64 callback_check = 52; __u64 callback2_check = 52; +__u64 pinned_callback_check; +__s32 pinned_cpu; #define ARRAY 1 #define HTAB 2 @@ -329,3 +331,62 @@ int BPF_PROG2(test3, int, a) return 0; } + +/* callback for pinned timer */ +static int timer_cb_pinned(void *map, int *key, struct bpf_timer *timer) +{ + __s32 cpu = bpf_get_smp_processor_id(); + + if (cpu != pinned_cpu) + err |= 16384; + + pinned_callback_check++; + return 0; +} + +static void test_pinned_timer(bool soft) +{ + int key = 0; + void *map; + struct bpf_timer *timer; + __u64 flags = BPF_F_TIMER_CPU_PIN; + __u64 start_time; + + if (soft) { + map = &soft_timer_pinned; + start_time = 0; + } else { + map = &abs_timer_pinned; + start_time = bpf_ktime_get_boot_ns(); + flags |= BPF_F_TIMER_ABS; + } + + timer = bpf_map_lookup_elem(map, &key); + if (timer) { + if (bpf_timer_init(timer, map, CLOCK_BOOTTIME) != 0) + err |= 4096; + bpf_timer_set_callback(timer, timer_cb_pinned); + pinned_cpu = bpf_get_smp_processor_id(); + bpf_timer_start(timer, start_time + 1000, flags); + } else { + err |= 8192; + } +} + +SEC("fentry/bpf_fentry_test4") +int BPF_PROG2(test4, int, a) +{ + bpf_printk("test4"); + test_pinned_timer(true); + + return 0; +} + +SEC("fentry/bpf_fentry_test5") +int BPF_PROG2(test5, int, a) +{ + bpf_printk("test5"); + test_pinned_timer(false); + + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/verifier_bswap.c b/tools/testing/selftests/bpf/progs/verifier_bswap.c index 8893094725f0..107525fb4a6a 100644 --- a/tools/testing/selftests/bpf/progs/verifier_bswap.c +++ b/tools/testing/selftests/bpf/progs/verifier_bswap.c @@ -5,7 +5,9 @@ #include "bpf_misc.h" #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ - (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && __clang_major__ >= 18 + (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ + defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \ + __clang_major__ >= 18 SEC("socket") __description("BSWAP, 16") diff --git a/tools/testing/selftests/bpf/progs/verifier_gotol.c b/tools/testing/selftests/bpf/progs/verifier_gotol.c index 2dae5322a18e..9f202eda952f 100644 --- a/tools/testing/selftests/bpf/progs/verifier_gotol.c +++ b/tools/testing/selftests/bpf/progs/verifier_gotol.c @@ -5,7 +5,9 @@ #include "bpf_misc.h" #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ - (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && __clang_major__ >= 18 + (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ + defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \ + __clang_major__ >= 18 SEC("socket") __description("gotol, small_imm") diff --git a/tools/testing/selftests/bpf/progs/verifier_ldsx.c b/tools/testing/selftests/bpf/progs/verifier_ldsx.c index 0c638f45aaf1..375525329637 100644 --- a/tools/testing/selftests/bpf/progs/verifier_ldsx.c +++ b/tools/testing/selftests/bpf/progs/verifier_ldsx.c @@ -5,19 +5,25 @@ #include "bpf_misc.h" #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ - (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && __clang_major__ >= 18 + (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ + defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \ + __clang_major__ >= 18 SEC("socket") __description("LDSX, S8") __success __success_unpriv __retval(-2) __naked void ldsx_s8(void) { - asm volatile (" \ - r1 = 0x3fe; \ - *(u64 *)(r10 - 8) = r1; \ - r0 = *(s8 *)(r10 - 8); \ - exit; \ -" ::: __clobber_all); + asm volatile ( + "r1 = 0x3fe;" + "*(u64 *)(r10 - 8) = r1;" +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + "r0 = *(s8 *)(r10 - 8);" +#else + "r0 = *(s8 *)(r10 - 1);" +#endif + "exit;" + ::: __clobber_all); } SEC("socket") @@ -25,12 +31,16 @@ __description("LDSX, S16") __success __success_unpriv __retval(-2) __naked void ldsx_s16(void) { - asm volatile (" \ - r1 = 0x3fffe; \ - *(u64 *)(r10 - 8) = r1; \ - r0 = *(s16 *)(r10 - 8); \ - exit; \ -" ::: __clobber_all); + asm volatile ( + "r1 = 0x3fffe;" + "*(u64 *)(r10 - 8) = r1;" +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + "r0 = *(s16 *)(r10 - 8);" +#else + "r0 = *(s16 *)(r10 - 2);" +#endif + "exit;" + ::: __clobber_all); } SEC("socket") @@ -38,35 +48,43 @@ __description("LDSX, S32") __success __success_unpriv __retval(-1) __naked void ldsx_s32(void) { - asm volatile (" \ - r1 = 0xfffffffe; \ - *(u64 *)(r10 - 8) = r1; \ - r0 = *(s32 *)(r10 - 8); \ - r0 >>= 1; \ - exit; \ -" ::: __clobber_all); + asm volatile ( + "r1 = 0xfffffffe;" + "*(u64 *)(r10 - 8) = r1;" +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + "r0 = *(s32 *)(r10 - 8);" +#else + "r0 = *(s32 *)(r10 - 4);" +#endif + "r0 >>= 1;" + "exit;" + ::: __clobber_all); } SEC("socket") __description("LDSX, S8 range checking, privileged") __log_level(2) __success __retval(1) -__msg("R1_w=scalar(smin=-128,smax=127)") +__msg("R1_w=scalar(smin=smin32=-128,smax=smax32=127)") __naked void ldsx_s8_range_priv(void) { - asm volatile (" \ - call %[bpf_get_prandom_u32]; \ - *(u64 *)(r10 - 8) = r0; \ - r1 = *(s8 *)(r10 - 8); \ - /* r1 with s8 range */ \ - if r1 s> 0x7f goto l0_%=; \ - if r1 s< -0x80 goto l0_%=; \ - r0 = 1; \ -l1_%=: \ - exit; \ -l0_%=: \ - r0 = 2; \ - goto l1_%=; \ -" : + asm volatile ( + "call %[bpf_get_prandom_u32];" + "*(u64 *)(r10 - 8) = r0;" +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + "r1 = *(s8 *)(r10 - 8);" +#else + "r1 = *(s8 *)(r10 - 1);" +#endif + /* r1 with s8 range */ + "if r1 s> 0x7f goto l0_%=;" + "if r1 s< -0x80 goto l0_%=;" + "r0 = 1;" +"l1_%=:" + "exit;" +"l0_%=:" + "r0 = 2;" + "goto l1_%=;" + : : __imm(bpf_get_prandom_u32) : __clobber_all); } @@ -76,20 +94,24 @@ __description("LDSX, S16 range checking") __success __success_unpriv __retval(1) __naked void ldsx_s16_range(void) { - asm volatile (" \ - call %[bpf_get_prandom_u32]; \ - *(u64 *)(r10 - 8) = r0; \ - r1 = *(s16 *)(r10 - 8); \ - /* r1 with s16 range */ \ - if r1 s> 0x7fff goto l0_%=; \ - if r1 s< -0x8000 goto l0_%=; \ - r0 = 1; \ -l1_%=: \ - exit; \ -l0_%=: \ - r0 = 2; \ - goto l1_%=; \ -" : + asm volatile ( + "call %[bpf_get_prandom_u32];" + "*(u64 *)(r10 - 8) = r0;" +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + "r1 = *(s16 *)(r10 - 8);" +#else + "r1 = *(s16 *)(r10 - 2);" +#endif + /* r1 with s16 range */ + "if r1 s> 0x7fff goto l0_%=;" + "if r1 s< -0x8000 goto l0_%=;" + "r0 = 1;" +"l1_%=:" + "exit;" +"l0_%=:" + "r0 = 2;" + "goto l1_%=;" + : : __imm(bpf_get_prandom_u32) : __clobber_all); } @@ -99,20 +121,24 @@ __description("LDSX, S32 range checking") __success __success_unpriv __retval(1) __naked void ldsx_s32_range(void) { - asm volatile (" \ - call %[bpf_get_prandom_u32]; \ - *(u64 *)(r10 - 8) = r0; \ - r1 = *(s32 *)(r10 - 8); \ - /* r1 with s16 range */ \ - if r1 s> 0x7fffFFFF goto l0_%=; \ - if r1 s< -0x80000000 goto l0_%=; \ - r0 = 1; \ -l1_%=: \ - exit; \ -l0_%=: \ - r0 = 2; \ - goto l1_%=; \ -" : + asm volatile ( + "call %[bpf_get_prandom_u32];" + "*(u64 *)(r10 - 8) = r0;" +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + "r1 = *(s32 *)(r10 - 8);" +#else + "r1 = *(s32 *)(r10 - 4);" +#endif + /* r1 with s16 range */ + "if r1 s> 0x7fffFFFF goto l0_%=;" + "if r1 s< -0x80000000 goto l0_%=;" + "r0 = 1;" +"l1_%=:" + "exit;" +"l0_%=:" + "r0 = 2;" + "goto l1_%=;" + : : __imm(bpf_get_prandom_u32) : __clobber_all); } diff --git a/tools/testing/selftests/bpf/progs/verifier_movsx.c b/tools/testing/selftests/bpf/progs/verifier_movsx.c index 3c8ac2c57b1b..b2a04d1179d0 100644 --- a/tools/testing/selftests/bpf/progs/verifier_movsx.c +++ b/tools/testing/selftests/bpf/progs/verifier_movsx.c @@ -5,7 +5,9 @@ #include "bpf_misc.h" #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ - (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && __clang_major__ >= 18 + (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ + defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \ + __clang_major__ >= 18 SEC("socket") __description("MOV32SX, S8") diff --git a/tools/testing/selftests/bpf/progs/verifier_sdiv.c b/tools/testing/selftests/bpf/progs/verifier_sdiv.c index 0990f8825675..8fc5174808b2 100644 --- a/tools/testing/selftests/bpf/progs/verifier_sdiv.c +++ b/tools/testing/selftests/bpf/progs/verifier_sdiv.c @@ -5,7 +5,9 @@ #include "bpf_misc.h" #if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \ - (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) && __clang_major__ >= 18 + (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \ + defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \ + __clang_major__ >= 18 SEC("socket") __description("SDIV32, non-zero imm divisor, check 1") diff --git a/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c b/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c index 24369f242853..ccde6a4c6319 100644 --- a/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c +++ b/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c @@ -3,11 +3,12 @@ #include <linux/bpf.h> #include <bpf/bpf_helpers.h> -#include "xsk_xdp_metadata.h" +#include <linux/if_ether.h> +#include "xsk_xdp_common.h" struct { __uint(type, BPF_MAP_TYPE_XSKMAP); - __uint(max_entries, 1); + __uint(max_entries, 2); __uint(key_size, sizeof(int)); __uint(value_size, sizeof(int)); } xsk SEC(".maps"); @@ -52,4 +53,21 @@ SEC("xdp.frags") int xsk_xdp_populate_metadata(struct xdp_md *xdp) return bpf_redirect_map(&xsk, 0, XDP_DROP); } +SEC("xdp") int xsk_xdp_shared_umem(struct xdp_md *xdp) +{ + void *data = (void *)(long)xdp->data; + void *data_end = (void *)(long)xdp->data_end; + struct ethhdr *eth = data; + + if (eth + 1 > data_end) + return XDP_DROP; + + /* Redirecting packets based on the destination MAC address */ + idx = ((unsigned int)(eth->h_dest[5])) / 2; + if (idx > MAX_SOCKETS) + return XDP_DROP; + + return bpf_redirect_map(&xsk, idx, XDP_DROP); +} + char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py index 0cfece7ff4f8..0ed67b6b31dd 100755 --- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py +++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py @@ -509,6 +509,15 @@ def main(): source_map_types.remove('cgroup_storage_deprecated') source_map_types.add('cgroup_storage') + # The same applied to BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED and + # BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE which share the same enum value + # and source_map_types picks + # BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED/percpu_cgroup_storage_deprecated. + # Replace 'percpu_cgroup_storage_deprecated' with 'percpu_cgroup_storage' + # so it aligns with what `bpftool map help` shows. + source_map_types.remove('percpu_cgroup_storage_deprecated') + source_map_types.add('percpu_cgroup_storage') + help_map_types = map_info.get_map_help() help_map_options = map_info.get_options() map_info.close() diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c index b4edd8454934..37ffa57f28a1 100644 --- a/tools/testing/selftests/bpf/test_loader.c +++ b/tools/testing/selftests/bpf/test_loader.c @@ -69,7 +69,7 @@ static int tester_init(struct test_loader *tester) { if (!tester->log_buf) { tester->log_buf_sz = TEST_LOADER_LOG_BUF_SZ; - tester->log_buf = malloc(tester->log_buf_sz); + tester->log_buf = calloc(tester->log_buf_sz, 1); if (!ASSERT_OK_PTR(tester->log_buf, "tester_log_buf")) return -ENOMEM; } @@ -538,7 +538,7 @@ void run_subtest(struct test_loader *tester, bool unpriv) { struct test_subspec *subspec = unpriv ? &spec->unpriv : &spec->priv; - struct bpf_program *tprog, *tprog_iter; + struct bpf_program *tprog = NULL, *tprog_iter; struct test_spec *spec_iter; struct cap_state caps = {}; struct bpf_object *tobj; diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 4d582cac2c09..1b9387890148 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -255,7 +255,7 @@ static void print_subtest_name(int test_num, int subtest_num, const char *test_name, char *subtest_name, char *result) { - char test_num_str[TEST_NUM_WIDTH + 1]; + char test_num_str[32]; snprintf(test_num_str, sizeof(test_num_str), "%d/%d", test_num, subtest_num); diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h index 77bd492c6024..2f9f6f250f17 100644 --- a/tools/testing/selftests/bpf/test_progs.h +++ b/tools/testing/selftests/bpf/test_progs.h @@ -417,6 +417,8 @@ int get_bpf_max_tramp_links(void); #define SYS_NANOSLEEP_KPROBE_NAME "__s390x_sys_nanosleep" #elif defined(__aarch64__) #define SYS_NANOSLEEP_KPROBE_NAME "__arm64_sys_nanosleep" +#elif defined(__riscv) +#define SYS_NANOSLEEP_KPROBE_NAME "__riscv_sys_nanosleep" #else #define SYS_NANOSLEEP_KPROBE_NAME "sys_nanosleep" #endif diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index 2aa5a3445056..65aafe0003db 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -73,17 +73,33 @@ # # Run test suite for physical device in loopback mode # sudo ./test_xsk.sh -i IFACE +# +# Run test suite in a specific mode only [skb,drv,zc] +# sudo ./test_xsk.sh -m MODE +# +# List available tests +# ./test_xsk.sh -l +# +# Run a specific test from the test suite +# sudo ./test_xsk.sh -t TEST_NAME +# +# Display the available command line options +# ./test_xsk.sh -h . xsk_prereqs.sh ETH="" -while getopts "vi:d" flag +while getopts "vi:dm:lt:h" flag do case "${flag}" in v) verbose=1;; d) debug=1;; i) ETH=${OPTARG};; + m) MODE=${OPTARG};; + l) list=1;; + t) TEST=${OPTARG};; + h) help=1;; esac done @@ -131,6 +147,16 @@ setup_vethPairs() { ip link set ${VETH0} up } +if [[ $list -eq 1 ]]; then + ./${XSKOBJ} -l + exit +fi + +if [[ $help -eq 1 ]]; then + ./${XSKOBJ} + exit +fi + if [ ! -z $ETH ]; then VETH0=${ETH} VETH1=${ETH} @@ -153,6 +179,14 @@ if [[ $verbose -eq 1 ]]; then ARGS+="-v " fi +if [ -n "$MODE" ]; then + ARGS+="-m ${MODE} " +fi + +if [ -n "$TEST" ]; then + ARGS+="-t ${TEST} " +fi + retval=$? test_status $retval "${TEST_NAME}" @@ -175,6 +209,10 @@ else cleanup_iface ${ETH} ${MTU} fi +if [[ $list -eq 1 ]]; then + exit +fi + TEST_NAME="XSK_SELFTESTS_${VETH0}_BUSY_POLL" busy_poll=1 diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c index f83d9f65c65b..4faa898ff7fc 100644 --- a/tools/testing/selftests/bpf/trace_helpers.c +++ b/tools/testing/selftests/bpf/trace_helpers.c @@ -7,6 +7,7 @@ #include <errno.h> #include <fcntl.h> #include <poll.h> +#include <pthread.h> #include <unistd.h> #include <linux/perf_event.h> #include <sys/mman.h> @@ -14,104 +15,165 @@ #include <linux/limits.h> #include <libelf.h> #include <gelf.h> +#include "bpf/libbpf_internal.h" #define TRACEFS_PIPE "/sys/kernel/tracing/trace_pipe" #define DEBUGFS_PIPE "/sys/kernel/debug/tracing/trace_pipe" -#define MAX_SYMS 400000 -static struct ksym syms[MAX_SYMS]; -static int sym_cnt; +struct ksyms { + struct ksym *syms; + size_t sym_cap; + size_t sym_cnt; +}; + +static struct ksyms *ksyms; +static pthread_mutex_t ksyms_mutex = PTHREAD_MUTEX_INITIALIZER; + +static int ksyms__add_symbol(struct ksyms *ksyms, const char *name, + unsigned long addr) +{ + void *tmp; + + tmp = strdup(name); + if (!tmp) + return -ENOMEM; + ksyms->syms[ksyms->sym_cnt].addr = addr; + ksyms->syms[ksyms->sym_cnt].name = tmp; + ksyms->sym_cnt++; + return 0; +} + +void free_kallsyms_local(struct ksyms *ksyms) +{ + unsigned int i; + + if (!ksyms) + return; + + if (!ksyms->syms) { + free(ksyms); + return; + } + + for (i = 0; i < ksyms->sym_cnt; i++) + free(ksyms->syms[i].name); + free(ksyms->syms); + free(ksyms); +} static int ksym_cmp(const void *p1, const void *p2) { return ((struct ksym *)p1)->addr - ((struct ksym *)p2)->addr; } -int load_kallsyms_refresh(void) +struct ksyms *load_kallsyms_local(void) { FILE *f; char func[256], buf[256]; char symbol; void *addr; - int i = 0; - - sym_cnt = 0; + int ret; + struct ksyms *ksyms; f = fopen("/proc/kallsyms", "r"); if (!f) - return -ENOENT; + return NULL; + + ksyms = calloc(1, sizeof(struct ksyms)); + if (!ksyms) { + fclose(f); + return NULL; + } while (fgets(buf, sizeof(buf), f)) { if (sscanf(buf, "%p %c %s", &addr, &symbol, func) != 3) break; if (!addr) continue; - if (i >= MAX_SYMS) - return -EFBIG; - syms[i].addr = (long) addr; - syms[i].name = strdup(func); - i++; + ret = libbpf_ensure_mem((void **) &ksyms->syms, &ksyms->sym_cap, + sizeof(struct ksym), ksyms->sym_cnt + 1); + if (ret) + goto error; + ret = ksyms__add_symbol(ksyms, func, (unsigned long)addr); + if (ret) + goto error; } fclose(f); - sym_cnt = i; - qsort(syms, sym_cnt, sizeof(struct ksym), ksym_cmp); - return 0; + qsort(ksyms->syms, ksyms->sym_cnt, sizeof(struct ksym), ksym_cmp); + return ksyms; + +error: + fclose(f); + free_kallsyms_local(ksyms); + return NULL; } int load_kallsyms(void) { - /* - * This is called/used from multiplace places, - * load symbols just once. - */ - if (sym_cnt) - return 0; - return load_kallsyms_refresh(); + pthread_mutex_lock(&ksyms_mutex); + if (!ksyms) + ksyms = load_kallsyms_local(); + pthread_mutex_unlock(&ksyms_mutex); + return ksyms ? 0 : 1; } -struct ksym *ksym_search(long key) +struct ksym *ksym_search_local(struct ksyms *ksyms, long key) { - int start = 0, end = sym_cnt; + int start = 0, end = ksyms->sym_cnt; int result; /* kallsyms not loaded. return NULL */ - if (sym_cnt <= 0) + if (ksyms->sym_cnt <= 0) return NULL; while (start < end) { size_t mid = start + (end - start) / 2; - result = key - syms[mid].addr; + result = key - ksyms->syms[mid].addr; if (result < 0) end = mid; else if (result > 0) start = mid + 1; else - return &syms[mid]; + return &ksyms->syms[mid]; } - if (start >= 1 && syms[start - 1].addr < key && - key < syms[start].addr) + if (start >= 1 && ksyms->syms[start - 1].addr < key && + key < ksyms->syms[start].addr) /* valid ksym */ - return &syms[start - 1]; + return &ksyms->syms[start - 1]; /* out of range. return _stext */ - return &syms[0]; + return &ksyms->syms[0]; } -long ksym_get_addr(const char *name) +struct ksym *ksym_search(long key) +{ + if (!ksyms) + return NULL; + return ksym_search_local(ksyms, key); +} + +long ksym_get_addr_local(struct ksyms *ksyms, const char *name) { int i; - for (i = 0; i < sym_cnt; i++) { - if (strcmp(syms[i].name, name) == 0) - return syms[i].addr; + for (i = 0; i < ksyms->sym_cnt; i++) { + if (strcmp(ksyms->syms[i].name, name) == 0) + return ksyms->syms[i].addr; } return 0; } +long ksym_get_addr(const char *name) +{ + if (!ksyms) + return 0; + return ksym_get_addr_local(ksyms, name); +} + /* open kallsyms and read symbol addresses on the fly. Without caching all symbols, * this is faster than load + find. */ diff --git a/tools/testing/selftests/bpf/trace_helpers.h b/tools/testing/selftests/bpf/trace_helpers.h index 876f3e711df6..04fd1da7079d 100644 --- a/tools/testing/selftests/bpf/trace_helpers.h +++ b/tools/testing/selftests/bpf/trace_helpers.h @@ -11,13 +11,17 @@ struct ksym { long addr; char *name; }; +struct ksyms; int load_kallsyms(void); -int load_kallsyms_refresh(void); - struct ksym *ksym_search(long key); long ksym_get_addr(const char *name); +struct ksyms *load_kallsyms_local(void); +struct ksym *ksym_search_local(struct ksyms *ksyms, long key); +long ksym_get_addr_local(struct ksyms *ksyms, const char *name); +void free_kallsyms_local(struct ksyms *ksyms); + /* open kallsyms and find addresses on the fly, faster than load + search. */ int kallsyms_find(const char *sym, unsigned long long *addr); diff --git a/tools/testing/selftests/bpf/urandom_read.c b/tools/testing/selftests/bpf/urandom_read.c index e92644d0fa75..4ed795655b9f 100644 --- a/tools/testing/selftests/bpf/urandom_read.c +++ b/tools/testing/selftests/bpf/urandom_read.c @@ -11,6 +11,9 @@ #define _SDT_HAS_SEMAPHORES 1 #include "sdt.h" +#define SHARED 1 +#include "bpf/libbpf_internal.h" + #define SEC(name) __attribute__((section(name), used)) #define BUF_SIZE 256 @@ -21,10 +24,14 @@ void urand_read_without_sema(int iter_num, int iter_cnt, int read_sz); void urandlib_read_with_sema(int iter_num, int iter_cnt, int read_sz); void urandlib_read_without_sema(int iter_num, int iter_cnt, int read_sz); +int urandlib_api(void); +COMPAT_VERSION(urandlib_api_old, urandlib_api, LIBURANDOM_READ_1.0.0) +int urandlib_api_old(void); +int urandlib_api_sameoffset(void); + unsigned short urand_read_with_sema_semaphore SEC(".probes"); -static __attribute__((noinline)) -void urandom_read(int fd, int count) +static noinline void urandom_read(int fd, int count) { char buf[BUF_SIZE]; int i; @@ -83,6 +90,10 @@ int main(int argc, char *argv[]) urandom_read(fd, count); + urandlib_api(); + urandlib_api_old(); + urandlib_api_sameoffset(); + close(fd); return 0; } diff --git a/tools/testing/selftests/bpf/urandom_read_lib1.c b/tools/testing/selftests/bpf/urandom_read_lib1.c index 86186e24b740..8c1356d8b4ee 100644 --- a/tools/testing/selftests/bpf/urandom_read_lib1.c +++ b/tools/testing/selftests/bpf/urandom_read_lib1.c @@ -3,6 +3,9 @@ #define _SDT_HAS_SEMAPHORES 1 #include "sdt.h" +#define SHARED 1 +#include "bpf/libbpf_internal.h" + #define SEC(name) __attribute__((section(name), used)) unsigned short urandlib_read_with_sema_semaphore SEC(".probes"); @@ -11,3 +14,22 @@ void urandlib_read_with_sema(int iter_num, int iter_cnt, int read_sz) { STAP_PROBE3(urandlib, read_with_sema, iter_num, iter_cnt, read_sz); } + +COMPAT_VERSION(urandlib_api_v1, urandlib_api, LIBURANDOM_READ_1.0.0) +int urandlib_api_v1(void) +{ + return 1; +} + +DEFAULT_VERSION(urandlib_api_v2, urandlib_api, LIBURANDOM_READ_2.0.0) +int urandlib_api_v2(void) +{ + return 2; +} + +COMPAT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_1.0.0) +DEFAULT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_2.0.0) +int urandlib_api_sameoffset(void) +{ + return 3; +} diff --git a/tools/testing/selftests/bpf/xdp_features.c b/tools/testing/selftests/bpf/xdp_features.c index b449788fbd39..595c79141cf3 100644 --- a/tools/testing/selftests/bpf/xdp_features.c +++ b/tools/testing/selftests/bpf/xdp_features.c @@ -360,9 +360,9 @@ static int recv_msg(int sockfd, void *buf, size_t bufsize, void *val, static int dut_run(struct xdp_features *skel) { int flags = XDP_FLAGS_UPDATE_IF_NOEXIST | XDP_FLAGS_DRV_MODE; - int state, err, *sockfd, ctrl_sockfd, echo_sockfd; + int state, err = 0, *sockfd, ctrl_sockfd, echo_sockfd; struct sockaddr_storage ctrl_addr; - pthread_t dut_thread; + pthread_t dut_thread = 0; socklen_t addrlen; sockfd = start_reuseport_server(AF_INET6, SOCK_STREAM, NULL, diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c index 613321eb84c1..17c980138796 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -234,7 +234,7 @@ static int verify_metadata(struct xsk *rx_xsk, int rxq, int server_fd, clockid_t struct pollfd fds[rxq + 1]; __u64 comp_addr; __u64 addr; - __u32 idx; + __u32 idx = 0; int ret; int i; diff --git a/tools/testing/selftests/bpf/xsk.c b/tools/testing/selftests/bpf/xsk.c index d9fb2b730a2c..e574711eeb84 100644 --- a/tools/testing/selftests/bpf/xsk.c +++ b/tools/testing/selftests/bpf/xsk.c @@ -442,10 +442,9 @@ void xsk_clear_xskmap(struct bpf_map *map) bpf_map_delete_elem(map_fd, &index); } -int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk) +int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk, u32 index) { int map_fd, sock_fd; - u32 index = 0; map_fd = bpf_map__fd(map); sock_fd = xsk_socket__fd(xsk); diff --git a/tools/testing/selftests/bpf/xsk.h b/tools/testing/selftests/bpf/xsk.h index d93200fdaa8d..771570bc3731 100644 --- a/tools/testing/selftests/bpf/xsk.h +++ b/tools/testing/selftests/bpf/xsk.h @@ -204,7 +204,7 @@ struct xsk_umem_config { int xsk_attach_xdp_program(struct bpf_program *prog, int ifindex, u32 xdp_flags); void xsk_detach_xdp_program(int ifindex, u32 xdp_flags); -int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk); +int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk, u32 index); void xsk_clear_xskmap(struct bpf_map *map); bool xsk_is_in_mode(u32 ifindex, int mode); diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh index 29175682c44d..47c7b8064f38 100755 --- a/tools/testing/selftests/bpf/xsk_prereqs.sh +++ b/tools/testing/selftests/bpf/xsk_prereqs.sh @@ -83,9 +83,11 @@ exec_xskxceiver() fi ./${XSKOBJ} -i ${VETH0} -i ${VETH1} ${ARGS} - retval=$? - test_status $retval "${TEST_NAME}" - statusList+=($retval) - nameList+=(${TEST_NAME}) + + if [[ $list -ne 1 ]]; then + test_status $retval "${TEST_NAME}" + statusList+=($retval) + nameList+=(${TEST_NAME}) + fi } diff --git a/tools/testing/selftests/bpf/xsk_xdp_common.h b/tools/testing/selftests/bpf/xsk_xdp_common.h new file mode 100644 index 000000000000..5a6f36f07383 --- /dev/null +++ b/tools/testing/selftests/bpf/xsk_xdp_common.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef XSK_XDP_COMMON_H_ +#define XSK_XDP_COMMON_H_ + +#define MAX_SOCKETS 2 + +struct xdp_info { + __u64 count; +} __attribute__((aligned(32))); + +#endif /* XSK_XDP_COMMON_H_ */ diff --git a/tools/testing/selftests/bpf/xsk_xdp_metadata.h b/tools/testing/selftests/bpf/xsk_xdp_metadata.h deleted file mode 100644 index 943133da378a..000000000000 --- a/tools/testing/selftests/bpf/xsk_xdp_metadata.h +++ /dev/null @@ -1,5 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -struct xdp_info { - __u64 count; -} __attribute__((aligned(32))); diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 2827f2d7cf30..591ca9637b23 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -80,6 +80,7 @@ #include <linux/if_ether.h> #include <linux/mman.h> #include <linux/netdev.h> +#include <linux/bitmap.h> #include <arpa/inet.h> #include <net/if.h> #include <locale.h> @@ -102,10 +103,12 @@ #include <bpf/bpf.h> #include <linux/filter.h> #include "../kselftest.h" -#include "xsk_xdp_metadata.h" +#include "xsk_xdp_common.h" -static const char *MAC1 = "\x00\x0A\x56\x9E\xEE\x62"; -static const char *MAC2 = "\x00\x0A\x56\x9E\xEE\x61"; +static bool opt_verbose; +static bool opt_print_tests; +static enum test_mode opt_mode = TEST_MODE_ALL; +static u32 opt_run_test = RUN_ALL_TESTS; static void __exit_with_error(int error, const char *file, const char *func, int line) { @@ -154,10 +157,10 @@ static void write_payload(void *dest, u32 pkt_nb, u32 start, u32 size) ptr[i] = htonl(pkt_nb << 16 | (i + start)); } -static void gen_eth_hdr(struct ifobject *ifobject, struct ethhdr *eth_hdr) +static void gen_eth_hdr(struct xsk_socket_info *xsk, struct ethhdr *eth_hdr) { - memcpy(eth_hdr->h_dest, ifobject->dst_mac, ETH_ALEN); - memcpy(eth_hdr->h_source, ifobject->src_mac, ETH_ALEN); + memcpy(eth_hdr->h_dest, xsk->dst_mac, ETH_ALEN); + memcpy(eth_hdr->h_source, xsk->src_mac, ETH_ALEN); eth_hdr->h_proto = htons(ETH_P_LOOPBACK); } @@ -255,7 +258,7 @@ static int __xsk_configure_socket(struct xsk_socket_info *xsk, struct xsk_umem_i cfg.bind_flags = ifobject->bind_flags; if (shared) cfg.bind_flags |= XDP_SHARED_UMEM; - if (ifobject->pkt_stream && ifobject->mtu > MAX_ETH_PKT_SIZE) + if (ifobject->mtu > MAX_ETH_PKT_SIZE) cfg.bind_flags |= XDP_USE_SG; txr = ifobject->tx_on ? &xsk->tx : NULL; @@ -310,19 +313,28 @@ static struct option long_options[] = { {"interface", required_argument, 0, 'i'}, {"busy-poll", no_argument, 0, 'b'}, {"verbose", no_argument, 0, 'v'}, + {"mode", required_argument, 0, 'm'}, + {"list", no_argument, 0, 'l'}, + {"test", required_argument, 0, 't'}, + {"help", no_argument, 0, 'h'}, {0, 0, 0, 0} }; -static void usage(const char *prog) +static void print_usage(char **argv) { const char *str = - " Usage: %s [OPTIONS]\n" + " Usage: xskxceiver [OPTIONS]\n" " Options:\n" " -i, --interface Use interface\n" " -v, --verbose Verbose output\n" - " -b, --busy-poll Enable busy poll\n"; + " -b, --busy-poll Enable busy poll\n" + " -m, --mode Run only mode skb, drv, or zc\n" + " -l, --list List all available tests\n" + " -t, --test Run a specific test. Enter number from -l option.\n" + " -h, --help Display this help and exit\n"; - ksft_print_msg(str, prog); + ksft_print_msg(str, basename(argv[0])); + ksft_exit_xfail(); } static bool validate_interface(struct ifobject *ifobj) @@ -342,7 +354,7 @@ static void parse_command_line(struct ifobject *ifobj_tx, struct ifobject *ifobj opterr = 0; for (;;) { - c = getopt_long(argc, argv, "i:vb", long_options, &option_index); + c = getopt_long(argc, argv, "i:vbm:lt:", long_options, &option_index); if (c == -1) break; @@ -371,9 +383,28 @@ static void parse_command_line(struct ifobject *ifobj_tx, struct ifobject *ifobj ifobj_tx->busy_poll = true; ifobj_rx->busy_poll = true; break; + case 'm': + if (!strncmp("skb", optarg, strlen(optarg))) + opt_mode = TEST_MODE_SKB; + else if (!strncmp("drv", optarg, strlen(optarg))) + opt_mode = TEST_MODE_DRV; + else if (!strncmp("zc", optarg, strlen(optarg))) + opt_mode = TEST_MODE_ZC; + else + print_usage(argv); + break; + case 'l': + opt_print_tests = true; + break; + case 't': + errno = 0; + opt_run_test = strtol(optarg, NULL, 0); + if (errno) + print_usage(argv); + break; + case 'h': default: - usage(basename(argv[0])); - ksft_exit_xfail(); + print_usage(argv); } } } @@ -396,11 +427,9 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, if (i == 0) { ifobj->rx_on = false; ifobj->tx_on = true; - ifobj->pkt_stream = test->tx_pkt_stream_default; } else { ifobj->rx_on = true; ifobj->tx_on = false; - ifobj->pkt_stream = test->rx_pkt_stream_default; } memset(ifobj->umem, 0, sizeof(*ifobj->umem)); @@ -410,6 +439,15 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, for (j = 0; j < MAX_SOCKETS; j++) { memset(&ifobj->xsk_arr[j], 0, sizeof(ifobj->xsk_arr[j])); ifobj->xsk_arr[j].rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS; + if (i == 0) + ifobj->xsk_arr[j].pkt_stream = test->tx_pkt_stream_default; + else + ifobj->xsk_arr[j].pkt_stream = test->rx_pkt_stream_default; + + memcpy(ifobj->xsk_arr[j].src_mac, g_mac, ETH_ALEN); + memcpy(ifobj->xsk_arr[j].dst_mac, g_mac, ETH_ALEN); + ifobj->xsk_arr[j].src_mac[5] += ((j * 2) + 0); + ifobj->xsk_arr[j].dst_mac[5] += ((j * 2) + 1); } } @@ -427,7 +465,8 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, } static void test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, - struct ifobject *ifobj_rx, enum test_mode mode) + struct ifobject *ifobj_rx, enum test_mode mode, + const struct test_spec *test_to_run) { struct pkt_stream *tx_pkt_stream; struct pkt_stream *rx_pkt_stream; @@ -449,6 +488,8 @@ static void test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx, ifobj->bind_flags |= XDP_COPY; } + strncpy(test->name, test_to_run->name, MAX_TEST_NAME_SIZE); + test->test_func = test_to_run->test_func; test->mode = mode; __test_spec_init(test, ifobj_tx, ifobj_rx); } @@ -458,11 +499,6 @@ static void test_spec_reset(struct test_spec *test) __test_spec_init(test, test->ifobj_tx, test->ifobj_rx); } -static void test_spec_set_name(struct test_spec *test, const char *name) -{ - strncpy(test->name, name, MAX_TEST_NAME_SIZE); -} - static void test_spec_set_xdp_prog(struct test_spec *test, struct bpf_program *xdp_prog_rx, struct bpf_program *xdp_prog_tx, struct bpf_map *xskmap_rx, struct bpf_map *xskmap_tx) @@ -495,8 +531,10 @@ static int test_spec_set_mtu(struct test_spec *test, int mtu) static void pkt_stream_reset(struct pkt_stream *pkt_stream) { - if (pkt_stream) + if (pkt_stream) { pkt_stream->current_pkt_nb = 0; + pkt_stream->nb_rx_pkts = 0; + } } static struct pkt *pkt_stream_get_next_tx_pkt(struct pkt_stream *pkt_stream) @@ -526,17 +564,17 @@ static void pkt_stream_delete(struct pkt_stream *pkt_stream) static void pkt_stream_restore_default(struct test_spec *test) { - struct pkt_stream *tx_pkt_stream = test->ifobj_tx->pkt_stream; - struct pkt_stream *rx_pkt_stream = test->ifobj_rx->pkt_stream; + struct pkt_stream *tx_pkt_stream = test->ifobj_tx->xsk->pkt_stream; + struct pkt_stream *rx_pkt_stream = test->ifobj_rx->xsk->pkt_stream; if (tx_pkt_stream != test->tx_pkt_stream_default) { - pkt_stream_delete(test->ifobj_tx->pkt_stream); - test->ifobj_tx->pkt_stream = test->tx_pkt_stream_default; + pkt_stream_delete(test->ifobj_tx->xsk->pkt_stream); + test->ifobj_tx->xsk->pkt_stream = test->tx_pkt_stream_default; } if (rx_pkt_stream != test->rx_pkt_stream_default) { - pkt_stream_delete(test->ifobj_rx->pkt_stream); - test->ifobj_rx->pkt_stream = test->rx_pkt_stream_default; + pkt_stream_delete(test->ifobj_rx->xsk->pkt_stream); + test->ifobj_rx->xsk->pkt_stream = test->rx_pkt_stream_default; } } @@ -596,14 +634,16 @@ static u32 pkt_nb_frags(u32 frame_size, struct pkt_stream *pkt_stream, struct pk return nb_frags; } -static void pkt_set(struct xsk_umem_info *umem, struct pkt *pkt, int offset, u32 len) +static void pkt_set(struct pkt_stream *pkt_stream, struct pkt *pkt, int offset, u32 len) { pkt->offset = offset; pkt->len = len; - if (len > MAX_ETH_JUMBO_SIZE) + if (len > MAX_ETH_JUMBO_SIZE) { pkt->valid = false; - else + } else { pkt->valid = true; + pkt_stream->nb_valid_entries++; + } } static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len) @@ -611,7 +651,7 @@ static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len) return ceil_u32(len, umem->frame_size) * umem->frame_size; } -static struct pkt_stream *pkt_stream_generate(struct xsk_umem_info *umem, u32 nb_pkts, u32 pkt_len) +static struct pkt_stream *__pkt_stream_generate(u32 nb_pkts, u32 pkt_len, u32 nb_start, u32 nb_off) { struct pkt_stream *pkt_stream; u32 i; @@ -625,41 +665,45 @@ static struct pkt_stream *pkt_stream_generate(struct xsk_umem_info *umem, u32 nb for (i = 0; i < nb_pkts; i++) { struct pkt *pkt = &pkt_stream->pkts[i]; - pkt_set(umem, pkt, 0, pkt_len); - pkt->pkt_nb = i; + pkt_set(pkt_stream, pkt, 0, pkt_len); + pkt->pkt_nb = nb_start + i * nb_off; } return pkt_stream; } -static struct pkt_stream *pkt_stream_clone(struct xsk_umem_info *umem, - struct pkt_stream *pkt_stream) +static struct pkt_stream *pkt_stream_generate(u32 nb_pkts, u32 pkt_len) { - return pkt_stream_generate(umem, pkt_stream->nb_pkts, pkt_stream->pkts[0].len); + return __pkt_stream_generate(nb_pkts, pkt_len, 0, 1); +} + +static struct pkt_stream *pkt_stream_clone(struct pkt_stream *pkt_stream) +{ + return pkt_stream_generate(pkt_stream->nb_pkts, pkt_stream->pkts[0].len); } static void pkt_stream_replace(struct test_spec *test, u32 nb_pkts, u32 pkt_len) { struct pkt_stream *pkt_stream; - pkt_stream = pkt_stream_generate(test->ifobj_tx->umem, nb_pkts, pkt_len); - test->ifobj_tx->pkt_stream = pkt_stream; - pkt_stream = pkt_stream_generate(test->ifobj_rx->umem, nb_pkts, pkt_len); - test->ifobj_rx->pkt_stream = pkt_stream; + pkt_stream = pkt_stream_generate(nb_pkts, pkt_len); + test->ifobj_tx->xsk->pkt_stream = pkt_stream; + pkt_stream = pkt_stream_generate(nb_pkts, pkt_len); + test->ifobj_rx->xsk->pkt_stream = pkt_stream; } static void __pkt_stream_replace_half(struct ifobject *ifobj, u32 pkt_len, int offset) { - struct xsk_umem_info *umem = ifobj->umem; struct pkt_stream *pkt_stream; u32 i; - pkt_stream = pkt_stream_clone(umem, ifobj->pkt_stream); - for (i = 1; i < ifobj->pkt_stream->nb_pkts; i += 2) - pkt_set(umem, &pkt_stream->pkts[i], offset, pkt_len); + pkt_stream = pkt_stream_clone(ifobj->xsk->pkt_stream); + for (i = 1; i < ifobj->xsk->pkt_stream->nb_pkts; i += 2) + pkt_set(pkt_stream, &pkt_stream->pkts[i], offset, pkt_len); - ifobj->pkt_stream = pkt_stream; + ifobj->xsk->pkt_stream = pkt_stream; + pkt_stream->nb_valid_entries /= 2; } static void pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int offset) @@ -670,15 +714,34 @@ static void pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int off static void pkt_stream_receive_half(struct test_spec *test) { - struct xsk_umem_info *umem = test->ifobj_rx->umem; - struct pkt_stream *pkt_stream = test->ifobj_tx->pkt_stream; + struct pkt_stream *pkt_stream = test->ifobj_tx->xsk->pkt_stream; u32 i; - test->ifobj_rx->pkt_stream = pkt_stream_generate(umem, pkt_stream->nb_pkts, - pkt_stream->pkts[0].len); - pkt_stream = test->ifobj_rx->pkt_stream; + test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(pkt_stream->nb_pkts, + pkt_stream->pkts[0].len); + pkt_stream = test->ifobj_rx->xsk->pkt_stream; for (i = 1; i < pkt_stream->nb_pkts; i += 2) pkt_stream->pkts[i].valid = false; + + pkt_stream->nb_valid_entries /= 2; +} + +static void pkt_stream_even_odd_sequence(struct test_spec *test) +{ + struct pkt_stream *pkt_stream; + u32 i; + + for (i = 0; i < test->nb_sockets; i++) { + pkt_stream = test->ifobj_tx->xsk_arr[i].pkt_stream; + pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2, + pkt_stream->pkts[0].len, i, 2); + test->ifobj_tx->xsk_arr[i].pkt_stream = pkt_stream; + + pkt_stream = test->ifobj_rx->xsk_arr[i].pkt_stream; + pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2, + pkt_stream->pkts[0].len, i, 2); + test->ifobj_rx->xsk_arr[i].pkt_stream = pkt_stream; + } } static u64 pkt_get_addr(struct pkt *pkt, struct xsk_umem_info *umem) @@ -693,16 +756,16 @@ static void pkt_stream_cancel(struct pkt_stream *pkt_stream) pkt_stream->current_pkt_nb--; } -static void pkt_generate(struct ifobject *ifobject, u64 addr, u32 len, u32 pkt_nb, - u32 bytes_written) +static void pkt_generate(struct xsk_socket_info *xsk, struct xsk_umem_info *umem, u64 addr, u32 len, + u32 pkt_nb, u32 bytes_written) { - void *data = xsk_umem__get_data(ifobject->umem->buffer, addr); + void *data = xsk_umem__get_data(umem->buffer, addr); if (len < MIN_PKT_SIZE) return; if (!bytes_written) { - gen_eth_hdr(ifobject, data); + gen_eth_hdr(xsk, data); len -= PKT_HDR_SIZE; data += PKT_HDR_SIZE; @@ -747,8 +810,15 @@ static struct pkt_stream *__pkt_stream_generate_custom(struct ifobject *ifobj, s len = 0; } + print_verbose("offset: %d len: %u valid: %u options: %u pkt_nb: %u\n", + pkt->offset, pkt->len, pkt->valid, pkt->options, pkt->pkt_nb); + if (pkt->valid && pkt->len > pkt_stream->max_pkt_len) pkt_stream->max_pkt_len = pkt->len; + + if (pkt->valid) + pkt_stream->nb_valid_entries++; + pkt_nb++; } @@ -762,10 +832,10 @@ static void pkt_stream_generate_custom(struct test_spec *test, struct pkt *pkts, struct pkt_stream *pkt_stream; pkt_stream = __pkt_stream_generate_custom(test->ifobj_tx, pkts, nb_pkts, true); - test->ifobj_tx->pkt_stream = pkt_stream; + test->ifobj_tx->xsk->pkt_stream = pkt_stream; pkt_stream = __pkt_stream_generate_custom(test->ifobj_rx, pkts, nb_pkts, false); - test->ifobj_rx->pkt_stream = pkt_stream; + test->ifobj_rx->xsk->pkt_stream = pkt_stream; } static void pkt_print_data(u32 *data, u32 cnt) @@ -777,7 +847,7 @@ static void pkt_print_data(u32 *data, u32 cnt) seqnum = ntohl(*data) & 0xffff; pkt_nb = ntohl(*data) >> 16; - fprintf(stdout, "%u:%u ", pkt_nb, seqnum); + ksft_print_msg("%u:%u ", pkt_nb, seqnum); data++; } } @@ -789,13 +859,13 @@ static void pkt_dump(void *pkt, u32 len, bool eth_header) if (eth_header) { /*extract L2 frame */ - fprintf(stdout, "DEBUG>> L2: dst mac: "); + ksft_print_msg("DEBUG>> L2: dst mac: "); for (i = 0; i < ETH_ALEN; i++) - fprintf(stdout, "%02X", ethhdr->h_dest[i]); + ksft_print_msg("%02X", ethhdr->h_dest[i]); - fprintf(stdout, "\nDEBUG>> L2: src mac: "); + ksft_print_msg("\nDEBUG>> L2: src mac: "); for (i = 0; i < ETH_ALEN; i++) - fprintf(stdout, "%02X", ethhdr->h_source[i]); + ksft_print_msg("%02X", ethhdr->h_source[i]); data = pkt + PKT_HDR_SIZE; } else { @@ -803,15 +873,15 @@ static void pkt_dump(void *pkt, u32 len, bool eth_header) } /*extract L5 frame */ - fprintf(stdout, "\nDEBUG>> L5: seqnum: "); + ksft_print_msg("\nDEBUG>> L5: seqnum: "); pkt_print_data(data, PKT_DUMP_NB_TO_PRINT); - fprintf(stdout, "...."); + ksft_print_msg("...."); if (len > PKT_DUMP_NB_TO_PRINT * sizeof(u32)) { - fprintf(stdout, "\n.... "); + ksft_print_msg("\n.... "); pkt_print_data(data + len / sizeof(u32) - PKT_DUMP_NB_TO_PRINT, PKT_DUMP_NB_TO_PRINT); } - fprintf(stdout, "\n---------------------------------------\n"); + ksft_print_msg("\n---------------------------------------\n"); } static bool is_offset_correct(struct xsk_umem_info *umem, struct pkt *pkt, u64 addr) @@ -916,36 +986,42 @@ static bool is_pkt_valid(struct pkt *pkt, void *buffer, u64 addr, u32 len) return true; } -static void kick_tx(struct xsk_socket_info *xsk) +static int kick_tx(struct xsk_socket_info *xsk) { int ret; ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0); if (ret >= 0) - return; + return TEST_PASS; if (errno == ENOBUFS || errno == EAGAIN || errno == EBUSY || errno == ENETDOWN) { usleep(100); - return; + return TEST_PASS; } - exit_with_error(errno); + return TEST_FAILURE; } -static void kick_rx(struct xsk_socket_info *xsk) +static int kick_rx(struct xsk_socket_info *xsk) { int ret; ret = recvfrom(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, NULL); if (ret < 0) - exit_with_error(errno); + return TEST_FAILURE; + + return TEST_PASS; } static int complete_pkts(struct xsk_socket_info *xsk, int batch_size) { unsigned int rcvd; u32 idx; + int ret; - if (xsk_ring_prod__needs_wakeup(&xsk->tx)) - kick_tx(xsk); + if (xsk_ring_prod__needs_wakeup(&xsk->tx)) { + ret = kick_tx(xsk); + if (ret) + return TEST_FAILURE; + } rcvd = xsk_ring_cons__peek(&xsk->umem->cq, batch_size, &idx); if (rcvd) { @@ -964,153 +1040,207 @@ static int complete_pkts(struct xsk_socket_info *xsk, int batch_size) return TEST_PASS; } -static int receive_pkts(struct test_spec *test, struct pollfd *fds) +static int __receive_pkts(struct test_spec *test, struct xsk_socket_info *xsk) { - struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0}; - struct pkt_stream *pkt_stream = test->ifobj_rx->pkt_stream; - struct xsk_socket_info *xsk = test->ifobj_rx->xsk; + u32 frags_processed = 0, nb_frags = 0, pkt_len = 0; u32 idx_rx = 0, idx_fq = 0, rcvd, pkts_sent = 0; + struct pkt_stream *pkt_stream = xsk->pkt_stream; struct ifobject *ifobj = test->ifobj_rx; struct xsk_umem_info *umem = xsk->umem; + struct pollfd fds = { }; struct pkt *pkt; + u64 first_addr = 0; int ret; - ret = gettimeofday(&tv_now, NULL); - if (ret) - exit_with_error(errno); - timeradd(&tv_now, &tv_timeout, &tv_end); + fds.fd = xsk_socket__fd(xsk->xsk); + fds.events = POLLIN; - pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent); - while (pkt) { - u32 frags_processed = 0, nb_frags = 0, pkt_len = 0; - u64 first_addr; + ret = kick_rx(xsk); + if (ret) + return TEST_FAILURE; - ret = gettimeofday(&tv_now, NULL); - if (ret) - exit_with_error(errno); - if (timercmp(&tv_now, &tv_end, >)) { - ksft_print_msg("ERROR: [%s] Receive loop timed out\n", __func__); + if (ifobj->use_poll) { + ret = poll(&fds, 1, POLL_TMOUT); + if (ret < 0) return TEST_FAILURE; - } - - kick_rx(xsk); - if (ifobj->use_poll) { - ret = poll(fds, 1, POLL_TMOUT); - if (ret < 0) - exit_with_error(errno); - if (!ret) { - if (!is_umem_valid(test->ifobj_tx)) - return TEST_PASS; - - ksft_print_msg("ERROR: [%s] Poll timed out\n", __func__); - return TEST_FAILURE; - } + if (!ret) { + if (!is_umem_valid(test->ifobj_tx)) + return TEST_PASS; - if (!(fds->revents & POLLIN)) - continue; + ksft_print_msg("ERROR: [%s] Poll timed out\n", __func__); + return TEST_CONTINUE; } - rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx); - if (!rcvd) - continue; + if (!(fds.revents & POLLIN)) + return TEST_CONTINUE; + } - if (ifobj->use_fill_ring) { - ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq); - while (ret != rcvd) { + rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx); + if (!rcvd) + return TEST_CONTINUE; + + if (ifobj->use_fill_ring) { + ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq); + while (ret != rcvd) { + if (xsk_ring_prod__needs_wakeup(&umem->fq)) { + ret = poll(&fds, 1, POLL_TMOUT); if (ret < 0) - exit_with_error(-ret); - if (xsk_ring_prod__needs_wakeup(&umem->fq)) { - ret = poll(fds, 1, POLL_TMOUT); - if (ret < 0) - exit_with_error(errno); - } - ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq); + return TEST_FAILURE; } + ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq); } + } - while (frags_processed < rcvd) { - const struct xdp_desc *desc = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++); - u64 addr = desc->addr, orig; + while (frags_processed < rcvd) { + const struct xdp_desc *desc = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++); + u64 addr = desc->addr, orig; - orig = xsk_umem__extract_addr(addr); - addr = xsk_umem__add_offset_to_addr(addr); + orig = xsk_umem__extract_addr(addr); + addr = xsk_umem__add_offset_to_addr(addr); + if (!nb_frags) { + pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent); if (!pkt) { ksft_print_msg("[%s] received too many packets addr: %lx len %u\n", __func__, addr, desc->len); return TEST_FAILURE; } + } - if (!is_frag_valid(umem, addr, desc->len, pkt->pkt_nb, pkt_len) || - !is_offset_correct(umem, pkt, addr) || - (ifobj->use_metadata && !is_metadata_correct(pkt, umem->buffer, addr))) - return TEST_FAILURE; + print_verbose("Rx: addr: %lx len: %u options: %u pkt_nb: %u valid: %u\n", + addr, desc->len, desc->options, pkt->pkt_nb, pkt->valid); - if (!nb_frags++) - first_addr = addr; - frags_processed++; - pkt_len += desc->len; - if (ifobj->use_fill_ring) - *xsk_ring_prod__fill_addr(&umem->fq, idx_fq++) = orig; + if (!is_frag_valid(umem, addr, desc->len, pkt->pkt_nb, pkt_len) || + !is_offset_correct(umem, pkt, addr) || (ifobj->use_metadata && + !is_metadata_correct(pkt, umem->buffer, addr))) + return TEST_FAILURE; - if (pkt_continues(desc->options)) - continue; + if (!nb_frags++) + first_addr = addr; + frags_processed++; + pkt_len += desc->len; + if (ifobj->use_fill_ring) + *xsk_ring_prod__fill_addr(&umem->fq, idx_fq++) = orig; - /* The complete packet has been received */ - if (!is_pkt_valid(pkt, umem->buffer, first_addr, pkt_len) || - !is_offset_correct(umem, pkt, addr)) - return TEST_FAILURE; + if (pkt_continues(desc->options)) + continue; - pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent); - nb_frags = 0; - pkt_len = 0; - } + /* The complete packet has been received */ + if (!is_pkt_valid(pkt, umem->buffer, first_addr, pkt_len) || + !is_offset_correct(umem, pkt, addr)) + return TEST_FAILURE; - if (nb_frags) { - /* In the middle of a packet. Start over from beginning of packet. */ - idx_rx -= nb_frags; - xsk_ring_cons__cancel(&xsk->rx, nb_frags); - if (ifobj->use_fill_ring) { - idx_fq -= nb_frags; - xsk_ring_prod__cancel(&umem->fq, nb_frags); - } - frags_processed -= nb_frags; + pkt_stream->nb_rx_pkts++; + nb_frags = 0; + pkt_len = 0; + } + + if (nb_frags) { + /* In the middle of a packet. Start over from beginning of packet. */ + idx_rx -= nb_frags; + xsk_ring_cons__cancel(&xsk->rx, nb_frags); + if (ifobj->use_fill_ring) { + idx_fq -= nb_frags; + xsk_ring_prod__cancel(&umem->fq, nb_frags); } + frags_processed -= nb_frags; + } - if (ifobj->use_fill_ring) - xsk_ring_prod__submit(&umem->fq, frags_processed); - if (ifobj->release_rx) - xsk_ring_cons__release(&xsk->rx, frags_processed); + if (ifobj->use_fill_ring) + xsk_ring_prod__submit(&umem->fq, frags_processed); + if (ifobj->release_rx) + xsk_ring_cons__release(&xsk->rx, frags_processed); + + pthread_mutex_lock(&pacing_mutex); + pkts_in_flight -= pkts_sent; + pthread_mutex_unlock(&pacing_mutex); + pkts_sent = 0; + +return TEST_CONTINUE; +} + +bool all_packets_received(struct test_spec *test, struct xsk_socket_info *xsk, u32 sock_num, + unsigned long *bitmap) +{ + struct pkt_stream *pkt_stream = xsk->pkt_stream; + + if (!pkt_stream) { + __set_bit(sock_num, bitmap); + return false; + } + + if (pkt_stream->nb_rx_pkts == pkt_stream->nb_valid_entries) { + __set_bit(sock_num, bitmap); + if (bitmap_full(bitmap, test->nb_sockets)) + return true; + } + + return false; +} + +static int receive_pkts(struct test_spec *test) +{ + struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0}; + DECLARE_BITMAP(bitmap, test->nb_sockets); + struct xsk_socket_info *xsk; + u32 sock_num = 0; + int res, ret; - pthread_mutex_lock(&pacing_mutex); - pkts_in_flight -= pkts_sent; - pthread_mutex_unlock(&pacing_mutex); - pkts_sent = 0; + ret = gettimeofday(&tv_now, NULL); + if (ret) + exit_with_error(errno); + + timeradd(&tv_now, &tv_timeout, &tv_end); + + while (1) { + xsk = &test->ifobj_rx->xsk_arr[sock_num]; + + if ((all_packets_received(test, xsk, sock_num, bitmap))) + break; + + res = __receive_pkts(test, xsk); + if (!(res == TEST_PASS || res == TEST_CONTINUE)) + return res; + + ret = gettimeofday(&tv_now, NULL); + if (ret) + exit_with_error(errno); + + if (timercmp(&tv_now, &tv_end, >)) { + ksft_print_msg("ERROR: [%s] Receive loop timed out\n", __func__); + return TEST_FAILURE; + } + sock_num = (sock_num + 1) % test->nb_sockets; } return TEST_PASS; } -static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeout) +static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, bool timeout) { u32 i, idx = 0, valid_pkts = 0, valid_frags = 0, buffer_len; - struct pkt_stream *pkt_stream = ifobject->pkt_stream; - struct xsk_socket_info *xsk = ifobject->xsk; + struct pkt_stream *pkt_stream = xsk->pkt_stream; struct xsk_umem_info *umem = ifobject->umem; bool use_poll = ifobject->use_poll; + struct pollfd fds = { }; int ret; buffer_len = pkt_get_buffer_len(umem, pkt_stream->max_pkt_len); /* pkts_in_flight might be negative if many invalid packets are sent */ if (pkts_in_flight >= (int)((umem_size(umem) - BATCH_SIZE * buffer_len) / buffer_len)) { - kick_tx(xsk); + ret = kick_tx(xsk); + if (ret) + return TEST_FAILURE; return TEST_CONTINUE; } + fds.fd = xsk_socket__fd(xsk->xsk); + fds.events = POLLOUT; + while (xsk_ring_prod__reserve(&xsk->tx, BATCH_SIZE, &idx) < BATCH_SIZE) { if (use_poll) { - ret = poll(fds, 1, POLL_TMOUT); + ret = poll(&fds, 1, POLL_TMOUT); if (timeout) { if (ret < 0) { ksft_print_msg("ERROR: [%s] Poll error %d\n", @@ -1161,10 +1291,13 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo tx_desc->options = 0; } if (pkt->valid) - pkt_generate(ifobject, tx_desc->addr, tx_desc->len, pkt->pkt_nb, + pkt_generate(xsk, umem, tx_desc->addr, tx_desc->len, pkt->pkt_nb, bytes_written); bytes_written += tx_desc->len; + print_verbose("Tx addr: %llx len: %u options: %u pkt_nb: %u\n", + tx_desc->addr, tx_desc->len, tx_desc->options, pkt->pkt_nb); + if (nb_frags_left) { i++; if (pkt_stream->verbatim) @@ -1186,7 +1319,7 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo xsk->outstanding_tx += valid_frags; if (use_poll) { - ret = poll(fds, 1, POLL_TMOUT); + ret = poll(&fds, 1, POLL_TMOUT); if (ret <= 0) { if (ret == 0 && timeout) return TEST_PASS; @@ -1207,33 +1340,67 @@ static int __send_pkts(struct ifobject *ifobject, struct pollfd *fds, bool timeo return TEST_CONTINUE; } -static void wait_for_tx_completion(struct xsk_socket_info *xsk) +static int wait_for_tx_completion(struct xsk_socket_info *xsk) { - while (xsk->outstanding_tx) + struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0}; + int ret; + + ret = gettimeofday(&tv_now, NULL); + if (ret) + exit_with_error(errno); + timeradd(&tv_now, &tv_timeout, &tv_end); + + while (xsk->outstanding_tx) { + ret = gettimeofday(&tv_now, NULL); + if (ret) + exit_with_error(errno); + if (timercmp(&tv_now, &tv_end, >)) { + ksft_print_msg("ERROR: [%s] Transmission loop timed out\n", __func__); + return TEST_FAILURE; + } + complete_pkts(xsk, BATCH_SIZE); + } + + return TEST_PASS; +} + +bool all_packets_sent(struct test_spec *test, unsigned long *bitmap) +{ + return bitmap_full(bitmap, test->nb_sockets); } static int send_pkts(struct test_spec *test, struct ifobject *ifobject) { - struct pkt_stream *pkt_stream = ifobject->pkt_stream; bool timeout = !is_umem_valid(test->ifobj_rx); - struct pollfd fds = { }; - u32 ret; + DECLARE_BITMAP(bitmap, test->nb_sockets); + u32 i, ret; - fds.fd = xsk_socket__fd(ifobject->xsk->xsk); - fds.events = POLLOUT; + while (!(all_packets_sent(test, bitmap))) { + for (i = 0; i < test->nb_sockets; i++) { + struct pkt_stream *pkt_stream; - while (pkt_stream->current_pkt_nb < pkt_stream->nb_pkts) { - ret = __send_pkts(ifobject, &fds, timeout); - if (ret == TEST_CONTINUE && !test->fail) - continue; - if ((ret || test->fail) && !timeout) - return TEST_FAILURE; - if (ret == TEST_PASS && timeout) - return ret; + pkt_stream = ifobject->xsk_arr[i].pkt_stream; + if (!pkt_stream || pkt_stream->current_pkt_nb >= pkt_stream->nb_pkts) { + __set_bit(i, bitmap); + continue; + } + ret = __send_pkts(ifobject, &ifobject->xsk_arr[i], timeout); + if (ret == TEST_CONTINUE && !test->fail) + continue; + + if ((ret || test->fail) && !timeout) + return TEST_FAILURE; + + if (ret == TEST_PASS && timeout) + return ret; + + ret = wait_for_tx_completion(&ifobject->xsk_arr[i]); + if (ret) + return TEST_FAILURE; + } } - wait_for_tx_completion(ifobject->xsk); return TEST_PASS; } @@ -1266,7 +1433,9 @@ static int validate_rx_dropped(struct ifobject *ifobject) struct xdp_statistics stats; int err; - kick_rx(ifobject->xsk); + err = kick_rx(ifobject->xsk); + if (err) + return TEST_FAILURE; err = get_xsk_stats(xsk, &stats); if (err) @@ -1278,8 +1447,8 @@ static int validate_rx_dropped(struct ifobject *ifobject) * packet being invalid). Since the last packet may or may not have * been dropped already, both outcomes must be allowed. */ - if (stats.rx_dropped == ifobject->pkt_stream->nb_pkts / 2 || - stats.rx_dropped == ifobject->pkt_stream->nb_pkts / 2 - 1) + if (stats.rx_dropped == ifobject->xsk->pkt_stream->nb_pkts / 2 || + stats.rx_dropped == ifobject->xsk->pkt_stream->nb_pkts / 2 - 1) return TEST_PASS; return TEST_FAILURE; @@ -1292,7 +1461,9 @@ static int validate_rx_full(struct ifobject *ifobject) int err; usleep(1000); - kick_rx(ifobject->xsk); + err = kick_rx(ifobject->xsk); + if (err) + return TEST_FAILURE; err = get_xsk_stats(xsk, &stats); if (err) @@ -1311,7 +1482,9 @@ static int validate_fill_empty(struct ifobject *ifobject) int err; usleep(1000); - kick_rx(ifobject->xsk); + err = kick_rx(ifobject->xsk); + if (err) + return TEST_FAILURE; err = get_xsk_stats(xsk, &stats); if (err) @@ -1339,9 +1512,10 @@ static int validate_tx_invalid_descs(struct ifobject *ifobject) return TEST_FAILURE; } - if (stats.tx_invalid_descs != ifobject->pkt_stream->nb_pkts / 2) { + if (stats.tx_invalid_descs != ifobject->xsk->pkt_stream->nb_pkts / 2) { ksft_print_msg("[%s] tx_invalid_descs incorrect. Got [%u] expected [%u]\n", - __func__, stats.tx_invalid_descs, ifobject->pkt_stream->nb_pkts); + __func__, stats.tx_invalid_descs, + ifobject->xsk->pkt_stream->nb_pkts); return TEST_FAILURE; } @@ -1433,6 +1607,7 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject) LIBBPF_OPTS(bpf_xdp_query_opts, opts); void *bufs; int ret; + u32 i; if (ifobject->umem->unaligned_mode) mmap_flags |= MAP_HUGETLB | MAP_HUGE_2MB; @@ -1455,11 +1630,14 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject) if (!ifobject->rx_on) return; - xsk_populate_fill_ring(ifobject->umem, ifobject->pkt_stream, ifobject->use_fill_ring); + xsk_populate_fill_ring(ifobject->umem, ifobject->xsk->pkt_stream, ifobject->use_fill_ring); - ret = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk); - if (ret) - exit_with_error(errno); + for (i = 0; i < test->nb_sockets; i++) { + ifobject->xsk = &ifobject->xsk_arr[i]; + ret = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk, i); + if (ret) + exit_with_error(errno); + } } static void *worker_testapp_validate_tx(void *arg) @@ -1475,8 +1653,6 @@ static void *worker_testapp_validate_tx(void *arg) thread_common_ops_tx(test, ifobject); } - print_verbose("Sending %d packets on interface %s\n", ifobject->pkt_stream->nb_pkts, - ifobject->ifname); err = send_pkts(test, ifobject); if (!err && ifobject->validation_func) @@ -1491,26 +1667,23 @@ static void *worker_testapp_validate_rx(void *arg) { struct test_spec *test = (struct test_spec *)arg; struct ifobject *ifobject = test->ifobj_rx; - struct pollfd fds = { }; int err; if (test->current_step == 1) { thread_common_ops(test, ifobject); } else { xsk_clear_xskmap(ifobject->xskmap); - err = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk); + err = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk, 0); if (err) { - printf("Error: Failed to update xskmap, error %s\n", strerror(-err)); + ksft_print_msg("Error: Failed to update xskmap, error %s\n", + strerror(-err)); exit_with_error(-err); } } - fds.fd = xsk_socket__fd(ifobject->xsk->xsk); - fds.events = POLLIN; - pthread_barrier_wait(&barr); - err = receive_pkts(test, &fds); + err = receive_pkts(test); if (!err && ifobject->validation_func) err = ifobject->validation_func(ifobject); @@ -1564,7 +1737,7 @@ static void xsk_reattach_xdp(struct ifobject *ifobj, struct bpf_program *xdp_pro xsk_detach_xdp_program(ifobj->ifindex, mode_to_xdp_flags(ifobj->mode)); err = xsk_attach_xdp_program(xdp_prog, ifobj->ifindex, mode_to_xdp_flags(mode)); if (err) { - printf("Error attaching XDP program\n"); + ksft_print_msg("Error attaching XDP program\n"); exit_with_error(-err); } @@ -1619,11 +1792,11 @@ static int __testapp_validate_traffic(struct test_spec *test, struct ifobject *i if (ifobj2) { if (pthread_barrier_init(&barr, NULL, 2)) exit_with_error(errno); - pkt_stream_reset(ifobj2->pkt_stream); + pkt_stream_reset(ifobj2->xsk->pkt_stream); } test->current_step++; - pkt_stream_reset(ifobj1->pkt_stream); + pkt_stream_reset(ifobj1->xsk->pkt_stream); pkts_in_flight = 0; signal(SIGUSR1, handler); @@ -1647,9 +1820,15 @@ static int __testapp_validate_traffic(struct test_spec *test, struct ifobject *i pthread_join(t0, NULL); if (test->total_steps == test->current_step || test->fail) { + u32 i; + if (ifobj2) - xsk_socket__delete(ifobj2->xsk->xsk); - xsk_socket__delete(ifobj1->xsk->xsk); + for (i = 0; i < test->nb_sockets; i++) + xsk_socket__delete(ifobj2->xsk_arr[i].xsk); + + for (i = 0; i < test->nb_sockets; i++) + xsk_socket__delete(ifobj1->xsk_arr[i].xsk); + testapp_clean_xsk_umem(ifobj1); if (ifobj2 && !ifobj2->shared_umem) testapp_clean_xsk_umem(ifobj2); @@ -1682,7 +1861,6 @@ static int testapp_teardown(struct test_spec *test) { int i; - test_spec_set_name(test, "TEARDOWN"); for (i = 0; i < MAX_TEARDOWN_ITER; i++) { if (testapp_validate_traffic(test)) return TEST_FAILURE; @@ -1704,18 +1882,17 @@ static void swap_directions(struct ifobject **ifobj1, struct ifobject **ifobj2) *ifobj2 = tmp_ifobj; } -static int testapp_bidi(struct test_spec *test) +static int testapp_bidirectional(struct test_spec *test) { int res; - test_spec_set_name(test, "BIDIRECTIONAL"); test->ifobj_tx->rx_on = true; test->ifobj_rx->tx_on = true; test->total_steps = 2; if (testapp_validate_traffic(test)) return TEST_FAILURE; - print_verbose("Switching Tx/Rx vectors\n"); + print_verbose("Switching Tx/Rx direction\n"); swap_directions(&test->ifobj_rx, &test->ifobj_tx); res = __testapp_validate_traffic(test, test->ifobj_rx, test->ifobj_tx); @@ -1723,42 +1900,44 @@ static int testapp_bidi(struct test_spec *test) return res; } -static void swap_xsk_resources(struct ifobject *ifobj_tx, struct ifobject *ifobj_rx) +static int swap_xsk_resources(struct test_spec *test) { int ret; - xsk_socket__delete(ifobj_tx->xsk->xsk); - xsk_socket__delete(ifobj_rx->xsk->xsk); - ifobj_tx->xsk = &ifobj_tx->xsk_arr[1]; - ifobj_rx->xsk = &ifobj_rx->xsk_arr[1]; + test->ifobj_tx->xsk_arr[0].pkt_stream = NULL; + test->ifobj_rx->xsk_arr[0].pkt_stream = NULL; + test->ifobj_tx->xsk_arr[1].pkt_stream = test->tx_pkt_stream_default; + test->ifobj_rx->xsk_arr[1].pkt_stream = test->rx_pkt_stream_default; + test->ifobj_tx->xsk = &test->ifobj_tx->xsk_arr[1]; + test->ifobj_rx->xsk = &test->ifobj_rx->xsk_arr[1]; - ret = xsk_update_xskmap(ifobj_rx->xskmap, ifobj_rx->xsk->xsk); + ret = xsk_update_xskmap(test->ifobj_rx->xskmap, test->ifobj_rx->xsk->xsk, 0); if (ret) - exit_with_error(errno); + return TEST_FAILURE; + + return TEST_PASS; } -static int testapp_bpf_res(struct test_spec *test) +static int testapp_xdp_prog_cleanup(struct test_spec *test) { - test_spec_set_name(test, "BPF_RES"); test->total_steps = 2; test->nb_sockets = 2; if (testapp_validate_traffic(test)) return TEST_FAILURE; - swap_xsk_resources(test->ifobj_tx, test->ifobj_rx); + if (swap_xsk_resources(test)) + return TEST_FAILURE; return testapp_validate_traffic(test); } static int testapp_headroom(struct test_spec *test) { - test_spec_set_name(test, "UMEM_HEADROOM"); test->ifobj_rx->umem->frame_headroom = UMEM_HEADROOM_TEST_SIZE; return testapp_validate_traffic(test); } static int testapp_stats_rx_dropped(struct test_spec *test) { - test_spec_set_name(test, "STAT_RX_DROPPED"); if (test->mode == TEST_MODE_ZC) { ksft_test_result_skip("Can not run RX_DROPPED test for ZC mode\n"); return TEST_SKIP; @@ -1774,7 +1953,6 @@ static int testapp_stats_rx_dropped(struct test_spec *test) static int testapp_stats_tx_invalid_descs(struct test_spec *test) { - test_spec_set_name(test, "STAT_TX_INVALID"); pkt_stream_replace_half(test, XSK_UMEM__INVALID_FRAME_SIZE, 0); test->ifobj_tx->validation_func = validate_tx_invalid_descs; return testapp_validate_traffic(test); @@ -1782,10 +1960,8 @@ static int testapp_stats_tx_invalid_descs(struct test_spec *test) static int testapp_stats_rx_full(struct test_spec *test) { - test_spec_set_name(test, "STAT_RX_FULL"); pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE); - test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem, - DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE); + test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE); test->ifobj_rx->xsk->rxqsize = DEFAULT_UMEM_BUFFERS; test->ifobj_rx->release_rx = false; @@ -1795,19 +1971,16 @@ static int testapp_stats_rx_full(struct test_spec *test) static int testapp_stats_fill_empty(struct test_spec *test) { - test_spec_set_name(test, "STAT_RX_FILL_EMPTY"); pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE); - test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem, - DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE); + test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE); test->ifobj_rx->use_fill_ring = false; test->ifobj_rx->validation_func = validate_fill_empty; return testapp_validate_traffic(test); } -static int testapp_unaligned(struct test_spec *test) +static int testapp_send_receive_unaligned(struct test_spec *test) { - test_spec_set_name(test, "UNALIGNED_MODE"); test->ifobj_tx->umem->unaligned_mode = true; test->ifobj_rx->umem->unaligned_mode = true; /* Let half of the packets straddle a 4K buffer boundary */ @@ -1816,9 +1989,8 @@ static int testapp_unaligned(struct test_spec *test) return testapp_validate_traffic(test); } -static int testapp_unaligned_mb(struct test_spec *test) +static int testapp_send_receive_unaligned_mb(struct test_spec *test) { - test_spec_set_name(test, "UNALIGNED_MODE_9K"); test->mtu = MAX_ETH_JUMBO_SIZE; test->ifobj_tx->umem->unaligned_mode = true; test->ifobj_rx->umem->unaligned_mode = true; @@ -1834,9 +2006,8 @@ static int testapp_single_pkt(struct test_spec *test) return testapp_validate_traffic(test); } -static int testapp_multi_buffer(struct test_spec *test) +static int testapp_send_receive_mb(struct test_spec *test) { - test_spec_set_name(test, "RUN_TO_COMPLETION_9K_PACKETS"); test->mtu = MAX_ETH_JUMBO_SIZE; pkt_stream_replace(test, DEFAULT_PKT_CNT, MAX_ETH_JUMBO_SIZE); @@ -1933,7 +2104,6 @@ static int testapp_xdp_drop(struct test_spec *test) struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs; struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs; - test_spec_set_name(test, "XDP_DROP_HALF"); test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_drop, skel_tx->progs.xsk_xdp_drop, skel_rx->maps.xsk, skel_tx->maps.xsk); @@ -1941,7 +2111,7 @@ static int testapp_xdp_drop(struct test_spec *test) return testapp_validate_traffic(test); } -static int testapp_xdp_metadata_count(struct test_spec *test) +static int testapp_xdp_metadata_copy(struct test_spec *test) { struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs; struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs; @@ -1955,19 +2125,38 @@ static int testapp_xdp_metadata_count(struct test_spec *test) test->ifobj_rx->use_metadata = true; data_map = bpf_object__find_map_by_name(skel_rx->obj, "xsk_xdp_.bss"); - if (!data_map || !bpf_map__is_internal(data_map)) - exit_with_error(ENOMEM); + if (!data_map || !bpf_map__is_internal(data_map)) { + ksft_print_msg("Error: could not find bss section of XDP program\n"); + return TEST_FAILURE; + } - if (bpf_map_update_elem(bpf_map__fd(data_map), &key, &count, BPF_ANY)) - exit_with_error(errno); + if (bpf_map_update_elem(bpf_map__fd(data_map), &key, &count, BPF_ANY)) { + ksft_print_msg("Error: could not update count element\n"); + return TEST_FAILURE; + } return testapp_validate_traffic(test); } -static int testapp_poll_txq_tmout(struct test_spec *test) +static int testapp_xdp_shared_umem(struct test_spec *test) { - test_spec_set_name(test, "POLL_TXQ_FULL"); + struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs; + struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs; + + test->total_steps = 1; + test->nb_sockets = 2; + + test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_shared_umem, + skel_tx->progs.xsk_xdp_shared_umem, + skel_rx->maps.xsk, skel_tx->maps.xsk); + + pkt_stream_even_odd_sequence(test); + + return testapp_validate_traffic(test); +} +static int testapp_poll_txq_tmout(struct test_spec *test) +{ test->ifobj_tx->use_poll = true; /* create invalid frame by set umem frame_size and pkt length equal to 2048 */ test->ifobj_tx->umem->frame_size = 2048; @@ -1977,7 +2166,6 @@ static int testapp_poll_txq_tmout(struct test_spec *test) static int testapp_poll_rxq_tmout(struct test_spec *test) { - test_spec_set_name(test, "POLL_RXQ_EMPTY"); test->ifobj_rx->use_poll = true; return testapp_validate_traffic_single_thread(test, test->ifobj_rx); } @@ -1987,7 +2175,6 @@ static int testapp_too_many_frags(struct test_spec *test) struct pkt pkts[2 * XSK_DESC__MAX_SKB_FRAGS + 2] = {}; u32 max_frags, i; - test_spec_set_name(test, "TOO_MANY_FRAGS"); if (test->mode == TEST_MODE_ZC) max_frags = test->ifobj_tx->xdp_zc_max_segs; else @@ -2054,20 +2241,16 @@ static bool hugepages_present(void) return true; } -static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char *src_mac, - thread_func_t func_ptr) +static void init_iface(struct ifobject *ifobj, thread_func_t func_ptr) { LIBBPF_OPTS(bpf_xdp_query_opts, query_opts); int err; - memcpy(ifobj->dst_mac, dst_mac, ETH_ALEN); - memcpy(ifobj->src_mac, src_mac, ETH_ALEN); - ifobj->func_ptr = func_ptr; err = xsk_load_xdp_programs(ifobj); if (err) { - printf("Error loading XDP program\n"); + ksft_print_msg("Error loading XDP program\n"); exit_with_error(err); } @@ -2091,138 +2274,98 @@ static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char * } } -static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_type type) -{ - int ret = TEST_SKIP; - - switch (type) { - case TEST_TYPE_STATS_RX_DROPPED: - ret = testapp_stats_rx_dropped(test); - break; - case TEST_TYPE_STATS_TX_INVALID_DESCS: - ret = testapp_stats_tx_invalid_descs(test); - break; - case TEST_TYPE_STATS_RX_FULL: - ret = testapp_stats_rx_full(test); - break; - case TEST_TYPE_STATS_FILL_EMPTY: - ret = testapp_stats_fill_empty(test); - break; - case TEST_TYPE_TEARDOWN: - ret = testapp_teardown(test); - break; - case TEST_TYPE_BIDI: - ret = testapp_bidi(test); - break; - case TEST_TYPE_BPF_RES: - ret = testapp_bpf_res(test); - break; - case TEST_TYPE_RUN_TO_COMPLETION: - test_spec_set_name(test, "RUN_TO_COMPLETION"); - ret = testapp_validate_traffic(test); - break; - case TEST_TYPE_RUN_TO_COMPLETION_MB: - ret = testapp_multi_buffer(test); - break; - case TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT: - test_spec_set_name(test, "RUN_TO_COMPLETION_SINGLE_PKT"); - ret = testapp_single_pkt(test); - break; - case TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME: - test_spec_set_name(test, "RUN_TO_COMPLETION_2K_FRAME_SIZE"); - test->ifobj_tx->umem->frame_size = 2048; - test->ifobj_rx->umem->frame_size = 2048; - pkt_stream_replace(test, DEFAULT_PKT_CNT, MIN_PKT_SIZE); - ret = testapp_validate_traffic(test); - break; - case TEST_TYPE_RX_POLL: - test->ifobj_rx->use_poll = true; - test_spec_set_name(test, "POLL_RX"); - ret = testapp_validate_traffic(test); - break; - case TEST_TYPE_TX_POLL: - test->ifobj_tx->use_poll = true; - test_spec_set_name(test, "POLL_TX"); - ret = testapp_validate_traffic(test); - break; - case TEST_TYPE_POLL_TXQ_TMOUT: - ret = testapp_poll_txq_tmout(test); - break; - case TEST_TYPE_POLL_RXQ_TMOUT: - ret = testapp_poll_rxq_tmout(test); - break; - case TEST_TYPE_ALIGNED_INV_DESC: - test_spec_set_name(test, "ALIGNED_INV_DESC"); - ret = testapp_invalid_desc(test); - break; - case TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME: - test_spec_set_name(test, "ALIGNED_INV_DESC_2K_FRAME_SIZE"); - test->ifobj_tx->umem->frame_size = 2048; - test->ifobj_rx->umem->frame_size = 2048; - ret = testapp_invalid_desc(test); - break; - case TEST_TYPE_UNALIGNED_INV_DESC: - test_spec_set_name(test, "UNALIGNED_INV_DESC"); - test->ifobj_tx->umem->unaligned_mode = true; - test->ifobj_rx->umem->unaligned_mode = true; - ret = testapp_invalid_desc(test); - break; - case TEST_TYPE_UNALIGNED_INV_DESC_4K1_FRAME: { - u64 page_size, umem_size; - - test_spec_set_name(test, "UNALIGNED_INV_DESC_4K1_FRAME_SIZE"); - /* Odd frame size so the UMEM doesn't end near a page boundary. */ - test->ifobj_tx->umem->frame_size = 4001; - test->ifobj_rx->umem->frame_size = 4001; - test->ifobj_tx->umem->unaligned_mode = true; - test->ifobj_rx->umem->unaligned_mode = true; - /* This test exists to test descriptors that staddle the end of - * the UMEM but not a page. - */ - page_size = sysconf(_SC_PAGESIZE); - umem_size = test->ifobj_tx->umem->num_frames * test->ifobj_tx->umem->frame_size; - assert(umem_size % page_size > MIN_PKT_SIZE); - assert(umem_size % page_size < page_size - MIN_PKT_SIZE); - ret = testapp_invalid_desc(test); - break; - } - case TEST_TYPE_ALIGNED_INV_DESC_MB: - test_spec_set_name(test, "ALIGNED_INV_DESC_MULTI_BUFF"); - ret = testapp_invalid_desc_mb(test); - break; - case TEST_TYPE_UNALIGNED_INV_DESC_MB: - test_spec_set_name(test, "UNALIGNED_INV_DESC_MULTI_BUFF"); - test->ifobj_tx->umem->unaligned_mode = true; - test->ifobj_rx->umem->unaligned_mode = true; - ret = testapp_invalid_desc_mb(test); - break; - case TEST_TYPE_UNALIGNED: - ret = testapp_unaligned(test); - break; - case TEST_TYPE_UNALIGNED_MB: - ret = testapp_unaligned_mb(test); - break; - case TEST_TYPE_HEADROOM: - ret = testapp_headroom(test); - break; - case TEST_TYPE_XDP_DROP_HALF: - ret = testapp_xdp_drop(test); - break; - case TEST_TYPE_XDP_METADATA_COUNT: - test_spec_set_name(test, "XDP_METADATA_COUNT"); - ret = testapp_xdp_metadata_count(test); - break; - case TEST_TYPE_XDP_METADATA_COUNT_MB: - test_spec_set_name(test, "XDP_METADATA_COUNT_MULTI_BUFF"); - test->mtu = MAX_ETH_JUMBO_SIZE; - ret = testapp_xdp_metadata_count(test); - break; - case TEST_TYPE_TOO_MANY_FRAGS: - ret = testapp_too_many_frags(test); - break; - default: - break; - } +static int testapp_send_receive(struct test_spec *test) +{ + return testapp_validate_traffic(test); +} + +static int testapp_send_receive_2k_frame(struct test_spec *test) +{ + test->ifobj_tx->umem->frame_size = 2048; + test->ifobj_rx->umem->frame_size = 2048; + pkt_stream_replace(test, DEFAULT_PKT_CNT, MIN_PKT_SIZE); + return testapp_validate_traffic(test); +} + +static int testapp_poll_rx(struct test_spec *test) +{ + test->ifobj_rx->use_poll = true; + return testapp_validate_traffic(test); +} + +static int testapp_poll_tx(struct test_spec *test) +{ + test->ifobj_tx->use_poll = true; + return testapp_validate_traffic(test); +} + +static int testapp_aligned_inv_desc(struct test_spec *test) +{ + return testapp_invalid_desc(test); +} + +static int testapp_aligned_inv_desc_2k_frame(struct test_spec *test) +{ + test->ifobj_tx->umem->frame_size = 2048; + test->ifobj_rx->umem->frame_size = 2048; + return testapp_invalid_desc(test); +} + +static int testapp_unaligned_inv_desc(struct test_spec *test) +{ + test->ifobj_tx->umem->unaligned_mode = true; + test->ifobj_rx->umem->unaligned_mode = true; + return testapp_invalid_desc(test); +} + +static int testapp_unaligned_inv_desc_4001_frame(struct test_spec *test) +{ + u64 page_size, umem_size; + + /* Odd frame size so the UMEM doesn't end near a page boundary. */ + test->ifobj_tx->umem->frame_size = 4001; + test->ifobj_rx->umem->frame_size = 4001; + test->ifobj_tx->umem->unaligned_mode = true; + test->ifobj_rx->umem->unaligned_mode = true; + /* This test exists to test descriptors that staddle the end of + * the UMEM but not a page. + */ + page_size = sysconf(_SC_PAGESIZE); + umem_size = test->ifobj_tx->umem->num_frames * test->ifobj_tx->umem->frame_size; + assert(umem_size % page_size > MIN_PKT_SIZE); + assert(umem_size % page_size < page_size - MIN_PKT_SIZE); + + return testapp_invalid_desc(test); +} + +static int testapp_aligned_inv_desc_mb(struct test_spec *test) +{ + return testapp_invalid_desc_mb(test); +} + +static int testapp_unaligned_inv_desc_mb(struct test_spec *test) +{ + test->ifobj_tx->umem->unaligned_mode = true; + test->ifobj_rx->umem->unaligned_mode = true; + return testapp_invalid_desc_mb(test); +} + +static int testapp_xdp_metadata(struct test_spec *test) +{ + return testapp_xdp_metadata_copy(test); +} + +static int testapp_xdp_metadata_mb(struct test_spec *test) +{ + test->mtu = MAX_ETH_JUMBO_SIZE; + return testapp_xdp_metadata_copy(test); +} + +static void run_pkt_test(struct test_spec *test) +{ + int ret; + + ret = test->test_func(test); if (ret == TEST_PASS) ksft_test_result_pass("PASS: %s %s%s\n", mode_string(test), busy_poll_string(test), @@ -2290,13 +2433,56 @@ static bool is_xdp_supported(int ifindex) return true; } +static const struct test_spec tests[] = { + {.name = "SEND_RECEIVE", .test_func = testapp_send_receive}, + {.name = "SEND_RECEIVE_2K_FRAME", .test_func = testapp_send_receive_2k_frame}, + {.name = "SEND_RECEIVE_SINGLE_PKT", .test_func = testapp_single_pkt}, + {.name = "POLL_RX", .test_func = testapp_poll_rx}, + {.name = "POLL_TX", .test_func = testapp_poll_tx}, + {.name = "POLL_RXQ_FULL", .test_func = testapp_poll_rxq_tmout}, + {.name = "POLL_TXQ_FULL", .test_func = testapp_poll_txq_tmout}, + {.name = "SEND_RECEIVE_UNALIGNED", .test_func = testapp_send_receive_unaligned}, + {.name = "ALIGNED_INV_DESC", .test_func = testapp_aligned_inv_desc}, + {.name = "ALIGNED_INV_DESC_2K_FRAME_SIZE", .test_func = testapp_aligned_inv_desc_2k_frame}, + {.name = "UNALIGNED_INV_DESC", .test_func = testapp_unaligned_inv_desc}, + {.name = "UNALIGNED_INV_DESC_4001_FRAME_SIZE", + .test_func = testapp_unaligned_inv_desc_4001_frame}, + {.name = "UMEM_HEADROOM", .test_func = testapp_headroom}, + {.name = "TEARDOWN", .test_func = testapp_teardown}, + {.name = "BIDIRECTIONAL", .test_func = testapp_bidirectional}, + {.name = "STAT_RX_DROPPED", .test_func = testapp_stats_rx_dropped}, + {.name = "STAT_TX_INVALID", .test_func = testapp_stats_tx_invalid_descs}, + {.name = "STAT_RX_FULL", .test_func = testapp_stats_rx_full}, + {.name = "STAT_FILL_EMPTY", .test_func = testapp_stats_fill_empty}, + {.name = "XDP_PROG_CLEANUP", .test_func = testapp_xdp_prog_cleanup}, + {.name = "XDP_DROP_HALF", .test_func = testapp_xdp_drop}, + {.name = "XDP_SHARED_UMEM", .test_func = testapp_xdp_shared_umem}, + {.name = "XDP_METADATA_COPY", .test_func = testapp_xdp_metadata}, + {.name = "XDP_METADATA_COPY_MULTI_BUFF", .test_func = testapp_xdp_metadata_mb}, + {.name = "SEND_RECEIVE_9K_PACKETS", .test_func = testapp_send_receive_mb}, + {.name = "SEND_RECEIVE_UNALIGNED_9K_PACKETS", + .test_func = testapp_send_receive_unaligned_mb}, + {.name = "ALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_aligned_inv_desc_mb}, + {.name = "UNALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_unaligned_inv_desc_mb}, + {.name = "TOO_MANY_FRAGS", .test_func = testapp_too_many_frags}, +}; + +static void print_tests(void) +{ + u32 i; + + printf("Tests:\n"); + for (i = 0; i < ARRAY_SIZE(tests); i++) + printf("%u: %s\n", i, tests[i].name); +} + int main(int argc, char **argv) { struct pkt_stream *rx_pkt_stream_default; struct pkt_stream *tx_pkt_stream_default; struct ifobject *ifobj_tx, *ifobj_rx; + u32 i, j, failed_tests = 0, nb_tests; int modes = TEST_MODE_SKB + 1; - u32 i, j, failed_tests = 0; struct test_spec test; bool shared_netdev; @@ -2314,14 +2500,21 @@ int main(int argc, char **argv) parse_command_line(ifobj_tx, ifobj_rx, argc, argv); + if (opt_print_tests) { + print_tests(); + ksft_exit_xpass(); + } + if (opt_run_test != RUN_ALL_TESTS && opt_run_test >= ARRAY_SIZE(tests)) { + ksft_print_msg("Error: test %u does not exist.\n", opt_run_test); + ksft_exit_xfail(); + } + shared_netdev = (ifobj_tx->ifindex == ifobj_rx->ifindex); ifobj_tx->shared_umem = shared_netdev; ifobj_rx->shared_umem = shared_netdev; - if (!validate_interface(ifobj_tx) || !validate_interface(ifobj_rx)) { - usage(basename(argv[0])); - ksft_exit_xfail(); - } + if (!validate_interface(ifobj_tx) || !validate_interface(ifobj_rx)) + print_usage(argv); if (is_xdp_supported(ifobj_tx->ifindex)) { modes++; @@ -2329,23 +2522,46 @@ int main(int argc, char **argv) modes++; } - init_iface(ifobj_rx, MAC1, MAC2, worker_testapp_validate_rx); - init_iface(ifobj_tx, MAC2, MAC1, worker_testapp_validate_tx); + init_iface(ifobj_rx, worker_testapp_validate_rx); + init_iface(ifobj_tx, worker_testapp_validate_tx); - test_spec_init(&test, ifobj_tx, ifobj_rx, 0); - tx_pkt_stream_default = pkt_stream_generate(ifobj_tx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE); - rx_pkt_stream_default = pkt_stream_generate(ifobj_rx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE); + test_spec_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]); + tx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE); + rx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE); if (!tx_pkt_stream_default || !rx_pkt_stream_default) exit_with_error(ENOMEM); test.tx_pkt_stream_default = tx_pkt_stream_default; test.rx_pkt_stream_default = rx_pkt_stream_default; - ksft_set_plan(modes * TEST_TYPE_MAX); + if (opt_run_test == RUN_ALL_TESTS) + nb_tests = ARRAY_SIZE(tests); + else + nb_tests = 1; + if (opt_mode == TEST_MODE_ALL) { + ksft_set_plan(modes * nb_tests); + } else { + if (opt_mode == TEST_MODE_DRV && modes <= TEST_MODE_DRV) { + ksft_print_msg("Error: XDP_DRV mode not supported.\n"); + ksft_exit_xfail(); + } + if (opt_mode == TEST_MODE_ZC && modes <= TEST_MODE_ZC) { + ksft_print_msg("Error: zero-copy mode not supported.\n"); + ksft_exit_xfail(); + } + + ksft_set_plan(nb_tests); + } for (i = 0; i < modes; i++) { - for (j = 0; j < TEST_TYPE_MAX; j++) { - test_spec_init(&test, ifobj_tx, ifobj_rx, i); - run_pkt_test(&test, i, j); + if (opt_mode != TEST_MODE_ALL && i != opt_mode) + continue; + + for (j = 0; j < ARRAY_SIZE(tests); j++) { + if (opt_run_test != RUN_ALL_TESTS && j != opt_run_test) + continue; + + test_spec_init(&test, ifobj_tx, ifobj_rx, i, &tests[j]); + run_pkt_test(&test); usleep(USLEEP_MAX); if (test.fail) diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h index 233b66cef64a..f174df2d693f 100644 --- a/tools/testing/selftests/bpf/xskxceiver.h +++ b/tools/testing/selftests/bpf/xskxceiver.h @@ -5,7 +5,10 @@ #ifndef XSKXCEIVER_H_ #define XSKXCEIVER_H_ +#include <limits.h> + #include "xsk_xdp_progs.skel.h" +#include "xsk_xdp_common.h" #ifndef SOL_XDP #define SOL_XDP 283 @@ -33,8 +36,7 @@ #define TEST_SKIP 2 #define MAX_INTERFACES 2 #define MAX_INTERFACE_NAME_CHARS 16 -#define MAX_SOCKETS 2 -#define MAX_TEST_NAME_SIZE 32 +#define MAX_TEST_NAME_SIZE 48 #define MAX_TEARDOWN_ITER 10 #define PKT_HDR_SIZE (sizeof(struct ethhdr) + 2) /* Just to align the data in the packet */ #define MIN_PKT_SIZE 64 @@ -56,6 +58,8 @@ #define XSK_DESC__MAX_SKB_FRAGS 18 #define HUGEPAGE_SIZE (2 * 1024 * 1024) #define PKT_DUMP_NB_TO_PRINT 16 +#define RUN_ALL_TESTS UINT_MAX +#define NUM_MAC_ADDRESSES 4 #define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0) @@ -63,43 +67,9 @@ enum test_mode { TEST_MODE_SKB, TEST_MODE_DRV, TEST_MODE_ZC, - TEST_MODE_MAX -}; - -enum test_type { - TEST_TYPE_RUN_TO_COMPLETION, - TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME, - TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT, - TEST_TYPE_RX_POLL, - TEST_TYPE_TX_POLL, - TEST_TYPE_POLL_RXQ_TMOUT, - TEST_TYPE_POLL_TXQ_TMOUT, - TEST_TYPE_UNALIGNED, - TEST_TYPE_ALIGNED_INV_DESC, - TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME, - TEST_TYPE_UNALIGNED_INV_DESC, - TEST_TYPE_UNALIGNED_INV_DESC_4K1_FRAME, - TEST_TYPE_HEADROOM, - TEST_TYPE_TEARDOWN, - TEST_TYPE_BIDI, - TEST_TYPE_STATS_RX_DROPPED, - TEST_TYPE_STATS_TX_INVALID_DESCS, - TEST_TYPE_STATS_RX_FULL, - TEST_TYPE_STATS_FILL_EMPTY, - TEST_TYPE_BPF_RES, - TEST_TYPE_XDP_DROP_HALF, - TEST_TYPE_XDP_METADATA_COUNT, - TEST_TYPE_XDP_METADATA_COUNT_MB, - TEST_TYPE_RUN_TO_COMPLETION_MB, - TEST_TYPE_UNALIGNED_MB, - TEST_TYPE_ALIGNED_INV_DESC_MB, - TEST_TYPE_UNALIGNED_INV_DESC_MB, - TEST_TYPE_TOO_MANY_FRAGS, - TEST_TYPE_MAX + TEST_MODE_ALL }; -static bool opt_verbose; - struct xsk_umem_info { struct xsk_ring_prod fq; struct xsk_ring_cons cq; @@ -118,8 +88,11 @@ struct xsk_socket_info { struct xsk_ring_prod tx; struct xsk_umem_info *umem; struct xsk_socket *xsk; + struct pkt_stream *pkt_stream; u32 outstanding_tx; u32 rxqsize; + u8 dst_mac[ETH_ALEN]; + u8 src_mac[ETH_ALEN]; }; struct pkt { @@ -135,12 +108,16 @@ struct pkt_stream { u32 current_pkt_nb; struct pkt *pkts; u32 max_pkt_len; + u32 nb_rx_pkts; + u32 nb_valid_entries; bool verbatim; }; struct ifobject; +struct test_spec; typedef int (*validation_func_t)(struct ifobject *ifobj); typedef void *(*thread_func_t)(void *arg); +typedef int (*test_func_t)(struct test_spec *test); struct ifobject { char ifname[MAX_INTERFACE_NAME_CHARS]; @@ -149,7 +126,6 @@ struct ifobject { struct xsk_umem_info *umem; thread_func_t func_ptr; validation_func_t validation_func; - struct pkt_stream *pkt_stream; struct xsk_xdp_progs *xdp_progs; struct bpf_map *xskmap; struct bpf_program *xdp_prog; @@ -169,8 +145,6 @@ struct ifobject { bool unaligned_supp; bool multi_buff_supp; bool multi_buff_zc_supp; - u8 dst_mac[ETH_ALEN]; - u8 src_mac[ETH_ALEN]; }; struct test_spec { @@ -182,6 +156,7 @@ struct test_spec { struct bpf_program *xdp_prog_tx; struct bpf_map *xskmap_rx; struct bpf_map *xskmap_tx; + test_func_t test_func; int mtu; u16 total_steps; u16 current_step; @@ -196,4 +171,6 @@ pthread_mutex_t pacing_mutex = PTHREAD_MUTEX_INITIALIZER; int pkts_in_flight; +static const u8 g_mac[ETH_ALEN] = {0x55, 0x44, 0x33, 0x22, 0x11, 0x00}; + #endif /* XSKXCEIVER_H_ */ diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh index 488f4964365e..5f2b3f6c0d74 100755 --- a/tools/testing/selftests/net/rtnetlink.sh +++ b/tools/testing/selftests/net/rtnetlink.sh @@ -31,6 +31,9 @@ ALL_TESTS=" " devdummy="test-dummy0" +VERBOSE=0 +PAUSE=no +PAUSE_ON_FAIL=no # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 @@ -51,35 +54,102 @@ check_fail() fi } +run_cmd_common() +{ + local cmd="$*" + local out + if [ "$VERBOSE" = "1" ]; then + echo "COMMAND: ${cmd}" + fi + out=$($cmd 2>&1) + rc=$? + if [ "$VERBOSE" = "1" -a -n "$out" ]; then + echo " $out" + fi + return $rc +} + +run_cmd() { + run_cmd_common "$@" + rc=$? + check_err $rc + return $rc +} +run_cmd_fail() +{ + run_cmd_common "$@" + rc=$? + check_fail $rc + return $rc +} + +run_cmd_grep_common() +{ + local find="$1"; shift + local cmd="$*" + local out + if [ "$VERBOSE" = "1" ]; then + echo "COMMAND: ${cmd} 2>&1 | grep -q '${find}'" + fi + out=$($cmd 2>&1 | grep -q "${find}" 2>&1) + return $? +} + +run_cmd_grep() { + run_cmd_grep_common "$@" + rc=$? + check_err $rc + return $rc +} + +run_cmd_grep_fail() +{ + run_cmd_grep_common "$@" + rc=$? + check_fail $rc + return $rc +} + +end_test() +{ + echo "$*" + [ "${VERBOSE}" = "1" ] && echo + + if [[ $ret -ne 0 ]] && [[ "${PAUSE_ON_FAIL}" = "yes" ]]; then + echo "Hit enter to continue" + read a + fi; + + if [ "${PAUSE}" = "yes" ]; then + echo "Hit enter to continue" + read a + fi + +} + + kci_add_dummy() { - ip link add name "$devdummy" type dummy - check_err $? - ip link set "$devdummy" up - check_err $? + run_cmd ip link add name "$devdummy" type dummy + run_cmd ip link set "$devdummy" up } kci_del_dummy() { - ip link del dev "$devdummy" - check_err $? + run_cmd ip link del dev "$devdummy" } kci_test_netconf() { dev="$1" r=$ret - - ip netconf show dev "$dev" > /dev/null - check_err $? - + run_cmd ip netconf show dev "$dev" for f in 4 6; do - ip -$f netconf show dev "$dev" > /dev/null - check_err $? + run_cmd ip -$f netconf show dev "$dev" done if [ $ret -ne 0 ] ;then - echo "FAIL: ip netconf show $dev" + end_test "FAIL: ip netconf show $dev" test $r -eq 0 && ret=0 return 1 fi @@ -92,43 +162,27 @@ kci_test_bridge() vlandev="testbr-vlan1" local ret=0 - ip link add name "$devbr" type bridge - check_err $? - - ip link set dev "$devdummy" master "$devbr" - check_err $? - - ip link set "$devbr" up - check_err $? - - ip link add link "$devbr" name "$vlandev" type vlan id 1 - check_err $? - ip addr add dev "$vlandev" 10.200.7.23/30 - check_err $? - ip -6 addr add dev "$vlandev" dead:42::1234/64 - check_err $? - ip -d link > /dev/null - check_err $? - ip r s t all > /dev/null - check_err $? + run_cmd ip link add name "$devbr" type bridge + run_cmd ip link set dev "$devdummy" master "$devbr" + run_cmd ip link set "$devbr" up + run_cmd ip link add link "$devbr" name "$vlandev" type vlan id 1 + run_cmd ip addr add dev "$vlandev" 10.200.7.23/30 + run_cmd ip -6 addr add dev "$vlandev" dead:42::1234/64 + run_cmd ip -d link + run_cmd ip r s t all for name in "$devbr" "$vlandev" "$devdummy" ; do kci_test_netconf "$name" done - - ip -6 addr del dev "$vlandev" dead:42::1234/64 - check_err $? - - ip link del dev "$vlandev" - check_err $? - ip link del dev "$devbr" - check_err $? + run_cmd ip -6 addr del dev "$vlandev" dead:42::1234/64 + run_cmd ip link del dev "$vlandev" + run_cmd ip link del dev "$devbr" if [ $ret -ne 0 ];then - echo "FAIL: bridge setup" + end_test "FAIL: bridge setup" return 1 fi - echo "PASS: bridge setup" + end_test "PASS: bridge setup" } @@ -139,34 +193,23 @@ kci_test_gre() loc=10.0.0.1 local ret=0 - ip tunnel add $gredev mode gre remote $rem local $loc ttl 1 - check_err $? - ip link set $gredev up - check_err $? - ip addr add 10.23.7.10 dev $gredev - check_err $? - ip route add 10.23.8.0/30 dev $gredev - check_err $? - ip addr add dev "$devdummy" 10.23.7.11/24 - check_err $? - ip link > /dev/null - check_err $? - ip addr > /dev/null - check_err $? + run_cmd ip tunnel add $gredev mode gre remote $rem local $loc ttl 1 + run_cmd ip link set $gredev up + run_cmd ip addr add 10.23.7.10 dev $gredev + run_cmd ip route add 10.23.8.0/30 dev $gredev + run_cmd ip addr add dev "$devdummy" 10.23.7.11/24 + run_cmd ip link + run_cmd ip addr kci_test_netconf "$gredev" - - ip addr del dev "$devdummy" 10.23.7.11/24 - check_err $? - - ip link del $gredev - check_err $? + run_cmd ip addr del dev "$devdummy" 10.23.7.11/24 + run_cmd ip link del $gredev if [ $ret -ne 0 ];then - echo "FAIL: gre tunnel endpoint" + end_test "FAIL: gre tunnel endpoint" return 1 fi - echo "PASS: gre tunnel endpoint" + end_test "PASS: gre tunnel endpoint" } # tc uses rtnetlink too, for full tc testing @@ -176,56 +219,40 @@ kci_test_tc() dev=lo local ret=0 - tc qdisc add dev "$dev" root handle 1: htb - check_err $? - tc class add dev "$dev" parent 1: classid 1:10 htb rate 1mbit - check_err $? - tc filter add dev "$dev" parent 1:0 prio 5 handle ffe: protocol ip u32 divisor 256 - check_err $? - tc filter add dev "$dev" parent 1:0 prio 5 handle ffd: protocol ip u32 divisor 256 - check_err $? - tc filter add dev "$dev" parent 1:0 prio 5 handle ffc: protocol ip u32 divisor 256 - check_err $? - tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 ht ffe:2: match ip src 10.0.0.3 flowid 1:10 - check_err $? - tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:2 u32 ht ffe:2: match ip src 10.0.0.2 flowid 1:10 - check_err $? - tc filter show dev "$dev" parent 1:0 > /dev/null - check_err $? - tc filter del dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 - check_err $? - tc filter show dev "$dev" parent 1:0 > /dev/null - check_err $? - tc qdisc del dev "$dev" root handle 1: htb - check_err $? + run_cmd tc qdisc add dev "$dev" root handle 1: htb + run_cmd tc class add dev "$dev" parent 1: classid 1:10 htb rate 1mbit + run_cmd tc filter add dev "$dev" parent 1:0 prio 5 handle ffe: protocol ip u32 divisor 256 + run_cmd tc filter add dev "$dev" parent 1:0 prio 5 handle ffd: protocol ip u32 divisor 256 + run_cmd tc filter add dev "$dev" parent 1:0 prio 5 handle ffc: protocol ip u32 divisor 256 + run_cmd tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 ht ffe:2: match ip src 10.0.0.3 flowid 1:10 + run_cmd tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:2 u32 ht ffe:2: match ip src 10.0.0.2 flowid 1:10 + run_cmd tc filter show dev "$dev" parent 1:0 + run_cmd tc filter del dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 + run_cmd tc filter show dev "$dev" parent 1:0 + run_cmd tc qdisc del dev "$dev" root handle 1: htb if [ $ret -ne 0 ];then - echo "FAIL: tc htb hierarchy" + end_test "FAIL: tc htb hierarchy" return 1 fi - echo "PASS: tc htb hierarchy" + end_test "PASS: tc htb hierarchy" } kci_test_polrouting() { local ret=0 - ip rule add fwmark 1 lookup 100 - check_err $? - ip route add local 0.0.0.0/0 dev lo table 100 - check_err $? - ip r s t all > /dev/null - check_err $? - ip rule del fwmark 1 lookup 100 - check_err $? - ip route del local 0.0.0.0/0 dev lo table 100 - check_err $? + run_cmd ip rule add fwmark 1 lookup 100 + run_cmd ip route add local 0.0.0.0/0 dev lo table 100 + run_cmd ip r s t all + run_cmd ip rule del fwmark 1 lookup 100 + run_cmd ip route del local 0.0.0.0/0 dev lo table 100 if [ $ret -ne 0 ];then - echo "FAIL: policy route test" + end_test "FAIL: policy route test" return 1 fi - echo "PASS: policy routing" + end_test "PASS: policy routing" } kci_test_route_get() @@ -233,65 +260,51 @@ kci_test_route_get() local hash_policy=$(sysctl -n net.ipv4.fib_multipath_hash_policy) local ret=0 - - ip route get 127.0.0.1 > /dev/null - check_err $? - ip route get 127.0.0.1 dev "$devdummy" > /dev/null - check_err $? - ip route get ::1 > /dev/null - check_err $? - ip route get fe80::1 dev "$devdummy" > /dev/null - check_err $? - ip route get 127.0.0.1 from 127.0.0.1 oif lo tos 0x10 mark 0x1 > /dev/null - check_err $? - ip route get ::1 from ::1 iif lo oif lo tos 0x10 mark 0x1 > /dev/null - check_err $? - ip addr add dev "$devdummy" 10.23.7.11/24 - check_err $? - ip route get 10.23.7.11 from 10.23.7.12 iif "$devdummy" > /dev/null - check_err $? - ip route add 10.23.8.0/24 \ + run_cmd ip route get 127.0.0.1 + run_cmd ip route get 127.0.0.1 dev "$devdummy" + run_cmd ip route get ::1 + run_cmd ip route get fe80::1 dev "$devdummy" + run_cmd ip route get 127.0.0.1 from 127.0.0.1 oif lo tos 0x10 mark 0x1 + run_cmd ip route get ::1 from ::1 iif lo oif lo tos 0x10 mark 0x1 + run_cmd ip addr add dev "$devdummy" 10.23.7.11/24 + run_cmd ip route get 10.23.7.11 from 10.23.7.12 iif "$devdummy" + run_cmd ip route add 10.23.8.0/24 \ nexthop via 10.23.7.13 dev "$devdummy" \ nexthop via 10.23.7.14 dev "$devdummy" - check_err $? + sysctl -wq net.ipv4.fib_multipath_hash_policy=0 - ip route get 10.23.8.11 > /dev/null - check_err $? + run_cmd ip route get 10.23.8.11 sysctl -wq net.ipv4.fib_multipath_hash_policy=1 - ip route get 10.23.8.11 > /dev/null - check_err $? + run_cmd ip route get 10.23.8.11 sysctl -wq net.ipv4.fib_multipath_hash_policy="$hash_policy" - ip route del 10.23.8.0/24 - check_err $? - ip addr del dev "$devdummy" 10.23.7.11/24 - check_err $? + run_cmd ip route del 10.23.8.0/24 + run_cmd ip addr del dev "$devdummy" 10.23.7.11/24 + if [ $ret -ne 0 ];then - echo "FAIL: route get" + end_test "FAIL: route get" return 1 fi - echo "PASS: route get" + end_test "PASS: route get" } kci_test_addrlft() { for i in $(seq 10 100) ;do lft=$(((RANDOM%3) + 1)) - ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1)) - check_err $? + run_cmd ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1)) done sleep 5 - - ip addr show dev "$devdummy" | grep "10.23.11." + run_cmd_grep "10.23.11." ip addr show dev "$devdummy" if [ $? -eq 0 ]; then - echo "FAIL: preferred_lft addresses remaining" check_err 1 + end_test "FAIL: preferred_lft addresses remaining" return fi - echo "PASS: preferred_lft addresses have expired" + end_test "PASS: preferred_lft addresses have expired" } kci_test_promote_secondaries() @@ -310,27 +323,17 @@ kci_test_promote_secondaries() [ $promote -eq 0 ] && sysctl -q net.ipv4.conf.$devdummy.promote_secondaries=0 - echo "PASS: promote_secondaries complete" + end_test "PASS: promote_secondaries complete" } kci_test_addrlabel() { local ret=0 - - ip addrlabel add prefix dead::/64 dev lo label 1 - check_err $? - - ip addrlabel list |grep -q "prefix dead::/64 dev lo label 1" - check_err $? - - ip addrlabel del prefix dead::/64 dev lo label 1 2> /dev/null - check_err $? - - ip addrlabel add prefix dead::/64 label 1 2> /dev/null - check_err $? - - ip addrlabel del prefix dead::/64 label 1 2> /dev/null - check_err $? + run_cmd ip addrlabel add prefix dead::/64 dev lo label 1 + run_cmd_grep "prefix dead::/64 dev lo label 1" ip addrlabel list + run_cmd ip addrlabel del prefix dead::/64 dev lo label 1 + run_cmd ip addrlabel add prefix dead::/64 label 1 + run_cmd ip addrlabel del prefix dead::/64 label 1 # concurrent add/delete for i in $(seq 1 1000); do @@ -346,11 +349,11 @@ kci_test_addrlabel() ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null if [ $ret -ne 0 ];then - echo "FAIL: ipv6 addrlabel" + end_test "FAIL: ipv6 addrlabel" return 1 fi - echo "PASS: ipv6 addrlabel" + end_test "PASS: ipv6 addrlabel" } kci_test_ifalias() @@ -358,35 +361,28 @@ kci_test_ifalias() local ret=0 namewant=$(uuidgen) syspathname="/sys/class/net/$devdummy/ifalias" - - ip link set dev "$devdummy" alias "$namewant" - check_err $? + run_cmd ip link set dev "$devdummy" alias "$namewant" if [ $ret -ne 0 ]; then - echo "FAIL: cannot set interface alias of $devdummy to $namewant" + end_test "FAIL: cannot set interface alias of $devdummy to $namewant" return 1 fi - - ip link show "$devdummy" | grep -q "alias $namewant" - check_err $? + run_cmd_grep "alias $namewant" ip link show "$devdummy" if [ -r "$syspathname" ] ; then read namehave < "$syspathname" if [ "$namewant" != "$namehave" ]; then - echo "FAIL: did set ifalias $namewant but got $namehave" + end_test "FAIL: did set ifalias $namewant but got $namehave" return 1 fi namewant=$(uuidgen) echo "$namewant" > "$syspathname" - ip link show "$devdummy" | grep -q "alias $namewant" - check_err $? + run_cmd_grep "alias $namewant" ip link show "$devdummy" # sysfs interface allows to delete alias again echo "" > "$syspathname" - - ip link show "$devdummy" | grep -q "alias $namewant" - check_fail $? + run_cmd_grep_fail "alias $namewant" ip link show "$devdummy" for i in $(seq 1 100); do uuidgen > "$syspathname" & @@ -395,57 +391,48 @@ kci_test_ifalias() wait # re-add the alias -- kernel should free mem when dummy dev is removed - ip link set dev "$devdummy" alias "$namewant" - check_err $? + run_cmd ip link set dev "$devdummy" alias "$namewant" + fi if [ $ret -ne 0 ]; then - echo "FAIL: set interface alias $devdummy to $namewant" + end_test "FAIL: set interface alias $devdummy to $namewant" return 1 fi - echo "PASS: set ifalias $namewant for $devdummy" + end_test "PASS: set ifalias $namewant for $devdummy" } kci_test_vrf() { vrfname="test-vrf" local ret=0 - - ip link show type vrf 2>/dev/null + run_cmd ip link show type vrf if [ $? -ne 0 ]; then - echo "SKIP: vrf: iproute2 too old" + end_test "SKIP: vrf: iproute2 too old" return $ksft_skip fi - - ip link add "$vrfname" type vrf table 10 - check_err $? + run_cmd ip link add "$vrfname" type vrf table 10 if [ $ret -ne 0 ];then - echo "FAIL: can't add vrf interface, skipping test" + end_test "FAIL: can't add vrf interface, skipping test" return 0 fi - - ip -br link show type vrf | grep -q "$vrfname" - check_err $? + run_cmd_grep "$vrfname" ip -br link show type vrf if [ $ret -ne 0 ];then - echo "FAIL: created vrf device not found" + end_test "FAIL: created vrf device not found" return 1 fi - ip link set dev "$vrfname" up - check_err $? - - ip link set dev "$devdummy" master "$vrfname" - check_err $? - ip link del dev "$vrfname" - check_err $? + run_cmd ip link set dev "$vrfname" up + run_cmd ip link set dev "$devdummy" master "$vrfname" + run_cmd ip link del dev "$vrfname" if [ $ret -ne 0 ];then - echo "FAIL: vrf" + end_test "FAIL: vrf" return 1 fi - echo "PASS: vrf" + end_test "PASS: vrf" } kci_test_encap_vxlan() @@ -454,84 +441,44 @@ kci_test_encap_vxlan() vxlan="test-vxlan0" vlan="test-vlan0" testns="$1" - - ip -netns "$testns" link add "$vxlan" type vxlan id 42 group 239.1.1.1 \ - dev "$devdummy" dstport 4789 2>/dev/null + run_cmd ip -netns "$testns" link add "$vxlan" type vxlan id 42 group 239.1.1.1 \ + dev "$devdummy" dstport 4789 if [ $? -ne 0 ]; then - echo "FAIL: can't add vxlan interface, skipping test" + end_test "FAIL: can't add vxlan interface, skipping test" return 0 fi - check_err $? - ip -netns "$testns" addr add 10.2.11.49/24 dev "$vxlan" - check_err $? - - ip -netns "$testns" link set up dev "$vxlan" - check_err $? - - ip -netns "$testns" link add link "$vxlan" name "$vlan" type vlan id 1 - check_err $? + run_cmd ip -netns "$testns" addr add 10.2.11.49/24 dev "$vxlan" + run_cmd ip -netns "$testns" link set up dev "$vxlan" + run_cmd ip -netns "$testns" link add link "$vxlan" name "$vlan" type vlan id 1 # changelink testcases - ip -netns "$testns" link set dev "$vxlan" type vxlan vni 43 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan group ffe5::5 dev "$devdummy" 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan ttl inherit 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan ttl 64 - check_err $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan nolearning - check_err $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan proxy 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan norsc 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan l2miss 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan l3miss 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan external 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan udpcsum 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumtx 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumrx 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumtx 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumrx 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan gbp 2>/dev/null - check_fail $? - - ip -netns "$testns" link set dev "$vxlan" type vxlan gpe 2>/dev/null - check_fail $? - - ip -netns "$testns" link del "$vxlan" - check_err $? + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan vni 43 + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan group ffe5::5 dev "$devdummy" + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan ttl inherit + + run_cmd ip -netns "$testns" link set dev "$vxlan" type vxlan ttl 64 + run_cmd ip -netns "$testns" link set dev "$vxlan" type vxlan nolearning + + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan proxy + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan norsc + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan l2miss + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan l3miss + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan external + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan udpcsum + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumtx + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumrx + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumtx + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumrx + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan gbp + run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan gpe + run_cmd ip -netns "$testns" link del "$vxlan" if [ $ret -ne 0 ]; then - echo "FAIL: vxlan" + end_test "FAIL: vxlan" return 1 fi - echo "PASS: vxlan" + end_test "PASS: vxlan" } kci_test_encap_fou() @@ -539,39 +486,32 @@ kci_test_encap_fou() local ret=0 name="test-fou" testns="$1" - - ip fou help 2>&1 |grep -q 'Usage: ip fou' + run_cmd_grep 'Usage: ip fou' ip fou help if [ $? -ne 0 ];then - echo "SKIP: fou: iproute2 too old" + end_test "SKIP: fou: iproute2 too old" return $ksft_skip fi if ! /sbin/modprobe -q -n fou; then - echo "SKIP: module fou is not found" + end_test "SKIP: module fou is not found" return $ksft_skip fi /sbin/modprobe -q fou - ip -netns "$testns" fou add port 7777 ipproto 47 2>/dev/null + + run_cmd ip -netns "$testns" fou add port 7777 ipproto 47 if [ $? -ne 0 ];then - echo "FAIL: can't add fou port 7777, skipping test" + end_test "FAIL: can't add fou port 7777, skipping test" return 1 fi - - ip -netns "$testns" fou add port 8888 ipproto 4 - check_err $? - - ip -netns "$testns" fou del port 9999 2>/dev/null - check_fail $? - - ip -netns "$testns" fou del port 7777 - check_err $? - + run_cmd ip -netns "$testns" fou add port 8888 ipproto 4 + run_cmd_fail ip -netns "$testns" fou del port 9999 + run_cmd ip -netns "$testns" fou del port 7777 if [ $ret -ne 0 ]; then - echo "FAIL: fou" + end_test "FAIL: fou"s return 1 fi - echo "PASS: fou" + end_test "PASS: fou" } # test various encap methods, use netns to avoid unwanted interference @@ -579,25 +519,16 @@ kci_test_encap() { testns="testns" local ret=0 - - ip netns add "$testns" + run_cmd ip netns add "$testns" if [ $? -ne 0 ]; then - echo "SKIP encap tests: cannot add net namespace $testns" + end_test "SKIP encap tests: cannot add net namespace $testns" return $ksft_skip fi - - ip -netns "$testns" link set lo up - check_err $? - - ip -netns "$testns" link add name "$devdummy" type dummy - check_err $? - ip -netns "$testns" link set "$devdummy" up - check_err $? - - kci_test_encap_vxlan "$testns" - check_err $? - kci_test_encap_fou "$testns" - check_err $? + run_cmd ip -netns "$testns" link set lo up + run_cmd ip -netns "$testns" link add name "$devdummy" type dummy + run_cmd ip -netns "$testns" link set "$devdummy" up + run_cmd kci_test_encap_vxlan "$testns" + run_cmd kci_test_encap_fou "$testns" ip netns del "$testns" return $ret @@ -607,41 +538,28 @@ kci_test_macsec() { msname="test_macsec0" local ret=0 - - ip macsec help 2>&1 | grep -q "^Usage: ip macsec" + run_cmd_grep "^Usage: ip macsec" ip macsec help if [ $? -ne 0 ]; then - echo "SKIP: macsec: iproute2 too old" + end_test "SKIP: macsec: iproute2 too old" return $ksft_skip fi - - ip link add link "$devdummy" "$msname" type macsec port 42 encrypt on - check_err $? + run_cmd ip link add link "$devdummy" "$msname" type macsec port 42 encrypt on if [ $ret -ne 0 ];then - echo "FAIL: can't add macsec interface, skipping test" + end_test "FAIL: can't add macsec interface, skipping test" return 1 fi - - ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012 - check_err $? - - ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" - check_err $? - - ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef - check_err $? - - ip macsec show > /dev/null - check_err $? - - ip link del dev "$msname" - check_err $? + run_cmd ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012 + run_cmd ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" + run_cmd ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef + run_cmd ip macsec show + run_cmd ip link del dev "$msname" if [ $ret -ne 0 ];then - echo "FAIL: macsec" + end_test "FAIL: macsec" return 1 fi - echo "PASS: macsec" + end_test "PASS: macsec" } kci_test_macsec_offload() @@ -650,19 +568,18 @@ kci_test_macsec_offload() sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/ probed=false local ret=0 - - ip macsec help 2>&1 | grep -q "^Usage: ip macsec" + run_cmd_grep "^Usage: ip macsec" ip macsec help if [ $? -ne 0 ]; then - echo "SKIP: macsec: iproute2 too old" + end_test "SKIP: macsec: iproute2 too old" return $ksft_skip fi # setup netdevsim since dummydev doesn't have offload support if [ ! -w /sys/bus/netdevsim/new_device ] ; then - modprobe -q netdevsim - check_err $? + run_cmd modprobe -q netdevsim + if [ $ret -ne 0 ]; then - echo "SKIP: macsec_offload can't load netdevsim" + end_test "SKIP: macsec_offload can't load netdevsim" return $ksft_skip fi probed=true @@ -675,43 +592,25 @@ kci_test_macsec_offload() ip link set $dev up if [ ! -d $sysfsd ] ; then - echo "FAIL: macsec_offload can't create device $dev" + end_test "FAIL: macsec_offload can't create device $dev" return 1 fi - - ethtool -k $dev | grep -q 'macsec-hw-offload: on' + run_cmd_grep 'macsec-hw-offload: on' ethtool -k $dev if [ $? -eq 1 ] ; then - echo "FAIL: macsec_offload netdevsim doesn't support MACsec offload" + end_test "FAIL: macsec_offload netdevsim doesn't support MACsec offload" return 1 fi - - ip link add link $dev kci_macsec1 type macsec port 4 offload mac - check_err $? - - ip link add link $dev kci_macsec2 type macsec address "aa:bb:cc:dd:ee:ff" port 5 offload mac - check_err $? - - ip link add link $dev kci_macsec3 type macsec sci abbacdde01020304 offload mac - check_err $? - - ip link add link $dev kci_macsec4 type macsec port 8 offload mac 2> /dev/null - check_fail $? + run_cmd ip link add link $dev kci_macsec1 type macsec port 4 offload mac + run_cmd ip link add link $dev kci_macsec2 type macsec address "aa:bb:cc:dd:ee:ff" port 5 offload mac + run_cmd ip link add link $dev kci_macsec3 type macsec sci abbacdde01020304 offload mac + run_cmd_fail ip link add link $dev kci_macsec4 type macsec port 8 offload mac msname=kci_macsec1 - - ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012 - check_err $? - - ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" - check_err $? - - ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on \ + run_cmd ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012 + run_cmd ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" + run_cmd ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on \ key 00 0123456789abcdef0123456789abcdef - check_err $? - - ip macsec add "$msname" rx port 1235 address "1c:ed:de:ad:be:ef" 2> /dev/null - check_fail $? - + run_cmd_fail ip macsec add "$msname" rx port 1235 address "1c:ed:de:ad:be:ef" # clean up any leftovers for msdev in kci_macsec{1,2,3,4} ; do ip link del $msdev 2> /dev/null @@ -720,10 +619,10 @@ kci_test_macsec_offload() $probed && rmmod netdevsim if [ $ret -ne 0 ]; then - echo "FAIL: macsec_offload" + end_test "FAIL: macsec_offload" return 1 fi - echo "PASS: macsec_offload" + end_test "PASS: macsec_offload" } #------------------------------------------------------------------- @@ -755,8 +654,7 @@ kci_test_ipsec() ip addr add $srcip dev $devdummy # flush to be sure there's nothing configured - ip x s flush ; ip x p flush - check_err $? + run_cmd ip x s flush ; ip x p flush # start the monitor in the background tmpfile=`mktemp /var/run/ipsectestXXX` @@ -764,72 +662,57 @@ kci_test_ipsec() sleep 0.2 ipsecid="proto esp src $srcip dst $dstip spi 0x07" - ip x s add $ipsecid \ + run_cmd ip x s add $ipsecid \ mode transport reqid 0x07 replay-window 32 \ $algo sel src $srcip/24 dst $dstip/24 - check_err $? - lines=`ip x s list | grep $srcip | grep $dstip | wc -l` - test $lines -eq 2 - check_err $? - ip x s count | grep -q "SAD count 1" - check_err $? + lines=`ip x s list | grep $srcip | grep $dstip | wc -l` + run_cmd test $lines -eq 2 + run_cmd_grep "SAD count 1" ip x s count lines=`ip x s get $ipsecid | grep $srcip | grep $dstip | wc -l` - test $lines -eq 2 - check_err $? - - ip x s delete $ipsecid - check_err $? + run_cmd test $lines -eq 2 + run_cmd ip x s delete $ipsecid lines=`ip x s list | wc -l` - test $lines -eq 0 - check_err $? + run_cmd test $lines -eq 0 ipsecsel="dir out src $srcip/24 dst $dstip/24" - ip x p add $ipsecsel \ + run_cmd ip x p add $ipsecsel \ tmpl proto esp src $srcip dst $dstip \ spi 0x07 mode transport reqid 0x07 - check_err $? + lines=`ip x p list | grep $srcip | grep $dstip | wc -l` - test $lines -eq 2 - check_err $? + run_cmd test $lines -eq 2 - ip x p count | grep -q "SPD IN 0 OUT 1 FWD 0" - check_err $? + run_cmd_grep "SPD IN 0 OUT 1 FWD 0" ip x p count lines=`ip x p get $ipsecsel | grep $srcip | grep $dstip | wc -l` - test $lines -eq 2 - check_err $? + run_cmd test $lines -eq 2 - ip x p delete $ipsecsel - check_err $? + run_cmd ip x p delete $ipsecsel lines=`ip x p list | wc -l` - test $lines -eq 0 - check_err $? + run_cmd test $lines -eq 0 # check the monitor results kill $mpid lines=`wc -l $tmpfile | cut "-d " -f1` - test $lines -eq 20 - check_err $? + run_cmd test $lines -eq 20 rm -rf $tmpfile # clean up any leftovers - ip x s flush - check_err $? - ip x p flush - check_err $? + run_cmd ip x s flush + run_cmd ip x p flush ip addr del $srcip/32 dev $devdummy if [ $ret -ne 0 ]; then - echo "FAIL: ipsec" + end_test "FAIL: ipsec" return 1 fi - echo "PASS: ipsec" + end_test "PASS: ipsec" } #------------------------------------------------------------------- @@ -857,10 +740,9 @@ kci_test_ipsec_offload() # setup netdevsim since dummydev doesn't have offload support if [ ! -w /sys/bus/netdevsim/new_device ] ; then - modprobe -q netdevsim - check_err $? + run_cmd modprobe -q netdevsim if [ $ret -ne 0 ]; then - echo "SKIP: ipsec_offload can't load netdevsim" + end_test "SKIP: ipsec_offload can't load netdevsim" return $ksft_skip fi probed=true @@ -874,11 +756,11 @@ kci_test_ipsec_offload() ip addr add $srcip dev $dev ip link set $dev up if [ ! -d $sysfsd ] ; then - echo "FAIL: ipsec_offload can't create device $dev" + end_test "FAIL: ipsec_offload can't create device $dev" return 1 fi if [ ! -f $sysfsf ] ; then - echo "FAIL: ipsec_offload netdevsim doesn't support IPsec offload" + end_test "FAIL: ipsec_offload netdevsim doesn't support IPsec offload" return 1 fi @@ -886,40 +768,39 @@ kci_test_ipsec_offload() ip x s flush ; ip x p flush # create offloaded SAs, both in and out - ip x p add dir out src $srcip/24 dst $dstip/24 \ + run_cmd ip x p add dir out src $srcip/24 dst $dstip/24 \ tmpl proto esp src $srcip dst $dstip spi 9 \ mode transport reqid 42 - check_err $? - ip x p add dir in src $dstip/24 dst $srcip/24 \ + + run_cmd ip x p add dir in src $dstip/24 dst $srcip/24 \ tmpl proto esp src $dstip dst $srcip spi 9 \ mode transport reqid 42 - check_err $? - ip x s add proto esp src $srcip dst $dstip spi 9 \ + run_cmd ip x s add proto esp src $srcip dst $dstip spi 9 \ mode transport reqid 42 $algo sel src $srcip/24 dst $dstip/24 \ offload dev $dev dir out - check_err $? - ip x s add proto esp src $dstip dst $srcip spi 9 \ + + run_cmd ip x s add proto esp src $dstip dst $srcip spi 9 \ mode transport reqid 42 $algo sel src $dstip/24 dst $srcip/24 \ offload dev $dev dir in - check_err $? + if [ $ret -ne 0 ]; then - echo "FAIL: ipsec_offload can't create SA" + end_test "FAIL: ipsec_offload can't create SA" return 1 fi # does offload show up in ip output lines=`ip x s list | grep -c "crypto offload parameters: dev $dev dir"` if [ $lines -ne 2 ] ; then - echo "FAIL: ipsec_offload SA offload missing from list output" check_err 1 + end_test "FAIL: ipsec_offload SA offload missing from list output" fi # use ping to exercise the Tx path ping -I $dev -c 3 -W 1 -i 0 $dstip >/dev/null # does driver have correct offload info - diff $sysfsf - << EOF + run_cmd diff $sysfsf - << EOF SA count=2 tx=3 sa[0] tx ipaddr=0x00000000 00000000 00000000 00000000 sa[0] spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1 @@ -929,7 +810,7 @@ sa[1] spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1 sa[1] key=0x34333231 38373635 32313039 36353433 EOF if [ $? -ne 0 ] ; then - echo "FAIL: ipsec_offload incorrect driver data" + end_test "FAIL: ipsec_offload incorrect driver data" check_err 1 fi @@ -938,8 +819,8 @@ EOF ip x p flush lines=`grep -c "SA count=0" $sysfsf` if [ $lines -ne 1 ] ; then - echo "FAIL: ipsec_offload SA not removed from driver" check_err 1 + end_test "FAIL: ipsec_offload SA not removed from driver" fi # clean up any leftovers @@ -947,10 +828,10 @@ EOF $probed && rmmod netdevsim if [ $ret -ne 0 ]; then - echo "FAIL: ipsec_offload" + end_test "FAIL: ipsec_offload" return 1 fi - echo "PASS: ipsec_offload" + end_test "PASS: ipsec_offload" } kci_test_gretap() @@ -959,46 +840,38 @@ kci_test_gretap() DEV_NS=gretap00 local ret=0 - ip netns add "$testns" + run_cmd ip netns add "$testns" if [ $? -ne 0 ]; then - echo "SKIP gretap tests: cannot add net namespace $testns" + end_test "SKIP gretap tests: cannot add net namespace $testns" return $ksft_skip fi - ip link help gretap 2>&1 | grep -q "^Usage:" + run_cmd_grep "^Usage:" ip link help gretap if [ $? -ne 0 ];then - echo "SKIP: gretap: iproute2 too old" + end_test "SKIP: gretap: iproute2 too old" ip netns del "$testns" return $ksft_skip fi # test native tunnel - ip -netns "$testns" link add dev "$DEV_NS" type gretap seq \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type gretap seq \ key 102 local 172.16.1.100 remote 172.16.1.200 - check_err $? - - ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 - check_err $? - ip -netns "$testns" link set dev $DEV_NS up - check_err $? - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 + run_cmd ip -netns "$testns" link set dev $DEV_NS ups + run_cmd ip -netns "$testns" link del "$DEV_NS" # test external mode - ip -netns "$testns" link add dev "$DEV_NS" type gretap external - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type gretap external + run_cmd ip -netns "$testns" link del "$DEV_NS" if [ $ret -ne 0 ]; then - echo "FAIL: gretap" + end_test "FAIL: gretap" ip netns del "$testns" return 1 fi - echo "PASS: gretap" + end_test "PASS: gretap" ip netns del "$testns" } @@ -1009,46 +882,38 @@ kci_test_ip6gretap() DEV_NS=ip6gretap00 local ret=0 - ip netns add "$testns" + run_cmd ip netns add "$testns" if [ $? -ne 0 ]; then - echo "SKIP ip6gretap tests: cannot add net namespace $testns" + end_test "SKIP ip6gretap tests: cannot add net namespace $testns" return $ksft_skip fi - ip link help ip6gretap 2>&1 | grep -q "^Usage:" + run_cmd_grep "^Usage:" ip link help ip6gretap if [ $? -ne 0 ];then - echo "SKIP: ip6gretap: iproute2 too old" + end_test "SKIP: ip6gretap: iproute2 too old" ip netns del "$testns" return $ksft_skip fi # test native tunnel - ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap seq \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap seq \ key 102 local fc00:100::1 remote fc00:100::2 - check_err $? - ip -netns "$testns" addr add dev "$DEV_NS" fc00:200::1/96 - check_err $? - ip -netns "$testns" link set dev $DEV_NS up - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" addr add dev "$DEV_NS" fc00:200::1/96 + run_cmd ip -netns "$testns" link set dev $DEV_NS up + run_cmd ip -netns "$testns" link del "$DEV_NS" # test external mode - ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap external - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap external + run_cmd ip -netns "$testns" link del "$DEV_NS" if [ $ret -ne 0 ]; then - echo "FAIL: ip6gretap" + end_test "FAIL: ip6gretap" ip netns del "$testns" return 1 fi - echo "PASS: ip6gretap" + end_test "PASS: ip6gretap" ip netns del "$testns" } @@ -1058,62 +923,47 @@ kci_test_erspan() testns="testns" DEV_NS=erspan00 local ret=0 - - ip link help erspan 2>&1 | grep -q "^Usage:" + run_cmd_grep "^Usage:" ip link help erspan if [ $? -ne 0 ];then - echo "SKIP: erspan: iproute2 too old" + end_test "SKIP: erspan: iproute2 too old" return $ksft_skip fi - - ip netns add "$testns" + run_cmd ip netns add "$testns" if [ $? -ne 0 ]; then - echo "SKIP erspan tests: cannot add net namespace $testns" + end_test "SKIP erspan tests: cannot add net namespace $testns" return $ksft_skip fi # test native tunnel erspan v1 - ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \ key 102 local 172.16.1.100 remote 172.16.1.200 \ erspan_ver 1 erspan 488 - check_err $? - ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 - check_err $? - ip -netns "$testns" link set dev $DEV_NS up - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 + run_cmd ip -netns "$testns" link set dev $DEV_NS up + run_cmd ip -netns "$testns" link del "$DEV_NS" # test native tunnel erspan v2 - ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \ key 102 local 172.16.1.100 remote 172.16.1.200 \ erspan_ver 2 erspan_dir ingress erspan_hwid 7 - check_err $? - - ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 - check_err $? - ip -netns "$testns" link set dev $DEV_NS up - check_err $? - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 + run_cmd ip -netns "$testns" link set dev $DEV_NS up + run_cmd ip -netns "$testns" link del "$DEV_NS" # test external mode - ip -netns "$testns" link add dev "$DEV_NS" type erspan external - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type erspan external + run_cmd ip -netns "$testns" link del "$DEV_NS" if [ $ret -ne 0 ]; then - echo "FAIL: erspan" + end_test "FAIL: erspan" ip netns del "$testns" return 1 fi - echo "PASS: erspan" + end_test "PASS: erspan" ip netns del "$testns" } @@ -1123,63 +973,49 @@ kci_test_ip6erspan() testns="testns" DEV_NS=ip6erspan00 local ret=0 - - ip link help ip6erspan 2>&1 | grep -q "^Usage:" + run_cmd_grep "^Usage:" ip link help ip6erspan if [ $? -ne 0 ];then - echo "SKIP: ip6erspan: iproute2 too old" + end_test "SKIP: ip6erspan: iproute2 too old" return $ksft_skip fi - - ip netns add "$testns" + run_cmd ip netns add "$testns" if [ $? -ne 0 ]; then - echo "SKIP ip6erspan tests: cannot add net namespace $testns" + end_test "SKIP ip6erspan tests: cannot add net namespace $testns" return $ksft_skip fi # test native tunnel ip6erspan v1 - ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \ key 102 local fc00:100::1 remote fc00:100::2 \ erspan_ver 1 erspan 488 - check_err $? - ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 - check_err $? - ip -netns "$testns" link set dev $DEV_NS up - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 + run_cmd ip -netns "$testns" link set dev $DEV_NS up + run_cmd ip -netns "$testns" link del "$DEV_NS" # test native tunnel ip6erspan v2 - ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \ key 102 local fc00:100::1 remote fc00:100::2 \ erspan_ver 2 erspan_dir ingress erspan_hwid 7 - check_err $? - ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 - check_err $? - ip -netns "$testns" link set dev $DEV_NS up - check_err $? - - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24 + run_cmd ip -netns "$testns" link set dev $DEV_NS up + run_cmd ip -netns "$testns" link del "$DEV_NS" # test external mode - ip -netns "$testns" link add dev "$DEV_NS" \ + run_cmd ip -netns "$testns" link add dev "$DEV_NS" \ type ip6erspan external - check_err $? - ip -netns "$testns" link del "$DEV_NS" - check_err $? + run_cmd ip -netns "$testns" link del "$DEV_NS" if [ $ret -ne 0 ]; then - echo "FAIL: ip6erspan" + end_test "FAIL: ip6erspan" ip netns del "$testns" return 1 fi - echo "PASS: ip6erspan" + end_test "PASS: ip6erspan" ip netns del "$testns" } @@ -1195,45 +1031,35 @@ kci_test_fdb_get() dstip="10.0.2.3" local ret=0 - bridge fdb help 2>&1 |grep -q 'bridge fdb get' + run_cmd_grep 'bridge fdb get' bridge fdb help if [ $? -ne 0 ];then - echo "SKIP: fdb get tests: iproute2 too old" + end_test "SKIP: fdb get tests: iproute2 too old" return $ksft_skip fi - ip netns add testns + run_cmd ip netns add testns if [ $? -ne 0 ]; then - echo "SKIP fdb get tests: cannot add net namespace $testns" + end_test "SKIP fdb get tests: cannot add net namespace $testns" return $ksft_skip fi - - $IP link add "$vxlandev" type vxlan id 10 local $localip \ - dstport 4789 2>/dev/null - check_err $? - $IP link add name "$brdev" type bridge &>/dev/null - check_err $? - $IP link set dev "$vxlandev" master "$brdev" &>/dev/null - check_err $? - $BRIDGE fdb add $test_mac dev "$vxlandev" master &>/dev/null - check_err $? - $BRIDGE fdb add $test_mac dev "$vxlandev" dst $dstip self &>/dev/null - check_err $? - - $BRIDGE fdb get $test_mac brport "$vxlandev" 2>/dev/null | grep -q "dev $vxlandev master $brdev" - check_err $? - $BRIDGE fdb get $test_mac br "$brdev" 2>/dev/null | grep -q "dev $vxlandev master $brdev" - check_err $? - $BRIDGE fdb get $test_mac dev "$vxlandev" self 2>/dev/null | grep -q "dev $vxlandev dst $dstip" - check_err $? + run_cmd $IP link add "$vxlandev" type vxlan id 10 local $localip \ + dstport 4789 + run_cmd $IP link add name "$brdev" type bridge + run_cmd $IP link set dev "$vxlandev" master "$brdev" + run_cmd $BRIDGE fdb add $test_mac dev "$vxlandev" master + run_cmd $BRIDGE fdb add $test_mac dev "$vxlandev" dst $dstip self + run_cmd_grep "dev $vxlandev master $brdev" $BRIDGE fdb get $test_mac brport "$vxlandev" + run_cmd_grep "dev $vxlandev master $brdev" $BRIDGE fdb get $test_mac br "$brdev" + run_cmd_grep "dev $vxlandev dst $dstip" $BRIDGE fdb get $test_mac dev "$vxlandev" self ip netns del testns &>/dev/null if [ $ret -ne 0 ]; then - echo "FAIL: bridge fdb get" + end_test "FAIL: bridge fdb get" return 1 fi - echo "PASS: bridge fdb get" + end_test "PASS: bridge fdb get" } kci_test_neigh_get() @@ -1243,50 +1069,38 @@ kci_test_neigh_get() dstip6=dead::2 local ret=0 - ip neigh help 2>&1 |grep -q 'ip neigh get' + run_cmd_grep 'ip neigh get' ip neigh help if [ $? -ne 0 ];then - echo "SKIP: fdb get tests: iproute2 too old" + end_test "SKIP: fdb get tests: iproute2 too old" return $ksft_skip fi # ipv4 - ip neigh add $dstip lladdr $dstmac dev "$devdummy" > /dev/null - check_err $? - ip neigh get $dstip dev "$devdummy" 2> /dev/null | grep -q "$dstmac" - check_err $? - ip neigh del $dstip lladdr $dstmac dev "$devdummy" > /dev/null - check_err $? + run_cmd ip neigh add $dstip lladdr $dstmac dev "$devdummy" + run_cmd_grep "$dstmac" ip neigh get $dstip dev "$devdummy" + run_cmd ip neigh del $dstip lladdr $dstmac dev "$devdummy" # ipv4 proxy - ip neigh add proxy $dstip dev "$devdummy" > /dev/null - check_err $? - ip neigh get proxy $dstip dev "$devdummy" 2>/dev/null | grep -q "$dstip" - check_err $? - ip neigh del proxy $dstip dev "$devdummy" > /dev/null - check_err $? + run_cmd ip neigh add proxy $dstip dev "$devdummy" + run_cmd_grep "$dstip" ip neigh get proxy $dstip dev "$devdummy" + run_cmd ip neigh del proxy $dstip dev "$devdummy" # ipv6 - ip neigh add $dstip6 lladdr $dstmac dev "$devdummy" > /dev/null - check_err $? - ip neigh get $dstip6 dev "$devdummy" 2> /dev/null | grep -q "$dstmac" - check_err $? - ip neigh del $dstip6 lladdr $dstmac dev "$devdummy" > /dev/null - check_err $? + run_cmd ip neigh add $dstip6 lladdr $dstmac dev "$devdummy" + run_cmd_grep "$dstmac" ip neigh get $dstip6 dev "$devdummy" + run_cmd ip neigh del $dstip6 lladdr $dstmac dev "$devdummy" # ipv6 proxy - ip neigh add proxy $dstip6 dev "$devdummy" > /dev/null - check_err $? - ip neigh get proxy $dstip6 dev "$devdummy" 2>/dev/null | grep -q "$dstip6" - check_err $? - ip neigh del proxy $dstip6 dev "$devdummy" > /dev/null - check_err $? + run_cmd ip neigh add proxy $dstip6 dev "$devdummy" + run_cmd_grep "$dstip6" ip neigh get proxy $dstip6 dev "$devdummy" + run_cmd ip neigh del proxy $dstip6 dev "$devdummy" if [ $ret -ne 0 ];then - echo "FAIL: neigh get" + end_test "FAIL: neigh get" return 1 fi - echo "PASS: neigh get" + end_test "PASS: neigh get" } kci_test_bridge_parent_id() @@ -1296,10 +1110,9 @@ kci_test_bridge_parent_id() probed=false if [ ! -w /sys/bus/netdevsim/new_device ] ; then - modprobe -q netdevsim - check_err $? + run_cmd modprobe -q netdevsim if [ $ret -ne 0 ]; then - echo "SKIP: bridge_parent_id can't load netdevsim" + end_test "SKIP: bridge_parent_id can't load netdevsim" return $ksft_skip fi probed=true @@ -1312,13 +1125,11 @@ kci_test_bridge_parent_id() udevadm settle dev10=`ls ${sysfsnet}10/net/` dev20=`ls ${sysfsnet}20/net/` - - ip link add name test-bond0 type bond mode 802.3ad - ip link set dev $dev10 master test-bond0 - ip link set dev $dev20 master test-bond0 - ip link add name test-br0 type bridge - ip link set dev test-bond0 master test-br0 - check_err $? + run_cmd ip link add name test-bond0 type bond mode 802.3ad + run_cmd ip link set dev $dev10 master test-bond0 + run_cmd ip link set dev $dev20 master test-bond0 + run_cmd ip link add name test-br0 type bridge + run_cmd ip link set dev test-bond0 master test-br0 # clean up any leftovers ip link del dev test-br0 @@ -1328,10 +1139,10 @@ kci_test_bridge_parent_id() $probed && rmmod netdevsim if [ $ret -ne 0 ]; then - echo "FAIL: bridge_parent_id" + end_test "FAIL: bridge_parent_id" return 1 fi - echo "PASS: bridge_parent_id" + end_test "PASS: bridge_parent_id" } address_get_proto() @@ -1409,10 +1220,10 @@ do_test_address_proto() ip address del dev "$devdummy" "$addr3" if [ $ret -ne 0 ]; then - echo "FAIL: address proto $what" + end_test "FAIL: address proto $what" return 1 fi - echo "PASS: address proto $what" + end_test "PASS: address proto $what" } kci_test_address_proto() @@ -1435,7 +1246,7 @@ kci_test_rtnl() kci_add_dummy if [ $ret -ne 0 ];then - echo "FAIL: cannot add dummy interface" + end_test "FAIL: cannot add dummy interface" return 1 fi @@ -1455,31 +1266,39 @@ usage: ${0##*/} OPTS -t <test> Test(s) to run (default: all) (options: $(echo $ALL_TESTS)) + -v Verbose mode (show commands and output) + -P Pause after every test + -p Pause after every failing test before cleanup (for debugging) EOF } #check for needed privileges if [ "$(id -u)" -ne 0 ];then - echo "SKIP: Need root privileges" + end_test "SKIP: Need root privileges" exit $ksft_skip fi for x in ip tc;do $x -Version 2>/dev/null >/dev/null if [ $? -ne 0 ];then - echo "SKIP: Could not run test without the $x tool" + end_test "SKIP: Could not run test without the $x tool" exit $ksft_skip fi done -while getopts t:h o; do +while getopts t:hvpP o; do case $o in t) TESTS=$OPTARG;; + v) VERBOSE=1;; + p) PAUSE_ON_FAIL=yes;; + P) PAUSE=yes;; h) usage; exit 0;; *) usage; exit 1;; esac done +[ $PAUSE = "yes" ] && PAUSE_ON_FAIL="no" + kci_test_rtnl exit $? diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/fw.json b/tools/testing/selftests/tc-testing/tc-tests/filters/fw.json index 5272049566d6..a4a83fb3e96f 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/filters/fw.json +++ b/tools/testing/selftests/tc-testing/tc-tests/filters/fw.json @@ -1351,5 +1351,54 @@ "teardown": [ "$TC qdisc del dev $DEV1 ingress" ] + }, + { + "id": "e470", + "name": "Try to delete class referenced by fw after a replace", + "category": [ + "filter", + "fw" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$TC qdisc add dev $DEV1 parent root handle 10: drr", + "$TC class add dev $DEV1 parent root classid 1 drr", + "$TC filter add dev $DEV1 parent 10: handle 1 prio 1 fw classid 10:1 action ok", + "$TC filter replace dev $DEV1 parent 10: handle 1 prio 1 fw classid 10:1 action drop" + ], + "cmdUnderTest": "$TC class delete dev $DEV1 parent 10: classid 10:1", + "expExitCode": "2", + "verifyCmd": "$TC class show dev $DEV1", + "matchPattern": "class drr 10:1", + "matchCount": "1", + "teardown": [ + "$TC qdisc del dev $DEV1 parent root drr" + ] + }, + { + "id": "ec1a", + "name": "Replace fw classid with nil", + "category": [ + "filter", + "fw" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$TC qdisc add dev $DEV1 parent root handle 10: drr", + "$TC class add dev $DEV1 parent root classid 1 drr", + "$TC filter add dev $DEV1 parent 10: handle 1 prio 1 fw classid 10:1 action ok" + ], + "cmdUnderTest": "$TC filter replace dev $DEV1 parent 10: handle 1 prio 1 fw action drop", + "expExitCode": "0", + "verifyCmd": "$TC filter show dev $DEV1 parent 10:", + "matchPattern": "fw chain 0 handle 0x1", + "matchCount": "1", + "teardown": [ + "$TC qdisc del dev $DEV1 parent root drr" + ] } ] diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/route.json b/tools/testing/selftests/tc-testing/tc-tests/filters/route.json index 1f6f19f02997..8d8de8f65aef 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/filters/route.json +++ b/tools/testing/selftests/tc-testing/tc-tests/filters/route.json @@ -177,5 +177,30 @@ "teardown": [ "$TC qdisc del dev $DEV1 ingress" ] + }, + { + "id": "b042", + "name": "Try to delete class referenced by route after a replace", + "category": [ + "filter", + "route" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$TC qdisc add dev $DEV1 parent root handle 10: drr", + "$TC class add dev $DEV1 parent root classid 1 drr", + "$TC filter add dev $DEV1 parent 10: prio 1 route from 10 classid 10:1 action ok", + "$TC filter replace dev $DEV1 parent 10: prio 1 route from 5 classid 10:1 action drop" + ], + "cmdUnderTest": "$TC class delete dev $DEV1 parent 10: classid 10:1", + "expExitCode": "2", + "verifyCmd": "$TC class show dev $DEV1", + "matchPattern": "class drr 10:1", + "matchCount": "1", + "teardown": [ + "$TC qdisc del dev $DEV1 parent root drr" + ] } ] diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json b/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json index bd64a4bf11ab..ddc7c355be0a 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json +++ b/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json @@ -247,5 +247,30 @@ "teardown": [ "$TC qdisc del dev $DEV1 ingress" ] + }, + { + "id": "0c37", + "name": "Try to delete class referenced by u32 after a replace", + "category": [ + "filter", + "u32" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$TC qdisc add dev $DEV1 parent root handle 10: drr", + "$TC class add dev $DEV1 parent root classid 1 drr", + "$TC filter add dev $DEV1 parent 10: prio 1 u32 match icmp type 1 0xff classid 10:1 action ok", + "$TC filter replace dev $DEV1 parent 10: prio 1 u32 match icmp type 1 0xff classid 10:1 action drop" + ], + "cmdUnderTest": "$TC class delete dev $DEV1 parent 10: classid 10:1", + "expExitCode": "2", + "verifyCmd": "$TC class show dev $DEV1", + "matchPattern": "class drr 10:1", + "matchCount": "1", + "teardown": [ + "$TC qdisc del dev $DEV1 parent root drr" + ] } ] diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c index 01b636d3039a..6779d5008b27 100644 --- a/tools/testing/vsock/util.c +++ b/tools/testing/vsock/util.c @@ -211,102 +211,138 @@ int vsock_seqpacket_accept(unsigned int cid, unsigned int port, return vsock_accept(cid, port, clientaddrp, SOCK_SEQPACKET); } -/* Transmit one byte and check the return value. +/* Transmit bytes from a buffer and check the return value. * * expected_ret: * <0 Negative errno (for testing errors) * 0 End-of-file - * 1 Success + * >0 Success (bytes successfully written) */ -void send_byte(int fd, int expected_ret, int flags) +void send_buf(int fd, const void *buf, size_t len, int flags, + ssize_t expected_ret) { - const uint8_t byte = 'A'; - ssize_t nwritten; + ssize_t nwritten = 0; + ssize_t ret; timeout_begin(TIMEOUT); do { - nwritten = send(fd, &byte, sizeof(byte), flags); - timeout_check("write"); - } while (nwritten < 0 && errno == EINTR); + ret = send(fd, buf + nwritten, len - nwritten, flags); + timeout_check("send"); + + if (ret == 0 || (ret < 0 && errno != EINTR)) + break; + + nwritten += ret; + } while (nwritten < len); timeout_end(); if (expected_ret < 0) { - if (nwritten != -1) { - fprintf(stderr, "bogus send(2) return value %zd\n", - nwritten); + if (ret != -1) { + fprintf(stderr, "bogus send(2) return value %zd (expected %zd)\n", + ret, expected_ret); exit(EXIT_FAILURE); } if (errno != -expected_ret) { - perror("write"); + perror("send"); exit(EXIT_FAILURE); } return; } - if (nwritten < 0) { - perror("write"); + if (ret < 0) { + perror("send"); exit(EXIT_FAILURE); } - if (nwritten == 0) { - if (expected_ret == 0) - return; - fprintf(stderr, "unexpected EOF while sending byte\n"); - exit(EXIT_FAILURE); - } - if (nwritten != sizeof(byte)) { - fprintf(stderr, "bogus send(2) return value %zd\n", nwritten); + if (nwritten != expected_ret) { + if (ret == 0) + fprintf(stderr, "unexpected EOF while sending bytes\n"); + + fprintf(stderr, "bogus send(2) bytes written %zd (expected %zd)\n", + nwritten, expected_ret); exit(EXIT_FAILURE); } } -/* Receive one byte and check the return value. +/* Receive bytes in a buffer and check the return value. * * expected_ret: * <0 Negative errno (for testing errors) * 0 End-of-file - * 1 Success + * >0 Success (bytes successfully read) */ -void recv_byte(int fd, int expected_ret, int flags) +void recv_buf(int fd, void *buf, size_t len, int flags, ssize_t expected_ret) { - uint8_t byte; - ssize_t nread; + ssize_t nread = 0; + ssize_t ret; timeout_begin(TIMEOUT); do { - nread = recv(fd, &byte, sizeof(byte), flags); - timeout_check("read"); - } while (nread < 0 && errno == EINTR); + ret = recv(fd, buf + nread, len - nread, flags); + timeout_check("recv"); + + if (ret == 0 || (ret < 0 && errno != EINTR)) + break; + + nread += ret; + } while (nread < len); timeout_end(); if (expected_ret < 0) { - if (nread != -1) { - fprintf(stderr, "bogus recv(2) return value %zd\n", - nread); + if (ret != -1) { + fprintf(stderr, "bogus recv(2) return value %zd (expected %zd)\n", + ret, expected_ret); exit(EXIT_FAILURE); } if (errno != -expected_ret) { - perror("read"); + perror("recv"); exit(EXIT_FAILURE); } return; } - if (nread < 0) { - perror("read"); + if (ret < 0) { + perror("recv"); exit(EXIT_FAILURE); } - if (nread == 0) { - if (expected_ret == 0) - return; - fprintf(stderr, "unexpected EOF while receiving byte\n"); - exit(EXIT_FAILURE); - } - if (nread != sizeof(byte)) { - fprintf(stderr, "bogus recv(2) return value %zd\n", nread); + if (nread != expected_ret) { + if (ret == 0) + fprintf(stderr, "unexpected EOF while receiving bytes\n"); + + fprintf(stderr, "bogus recv(2) bytes read %zd (expected %zd)\n", + nread, expected_ret); exit(EXIT_FAILURE); } +} + +/* Transmit one byte and check the return value. + * + * expected_ret: + * <0 Negative errno (for testing errors) + * 0 End-of-file + * 1 Success + */ +void send_byte(int fd, int expected_ret, int flags) +{ + const uint8_t byte = 'A'; + + send_buf(fd, &byte, sizeof(byte), flags, expected_ret); +} + +/* Receive one byte and check the return value. + * + * expected_ret: + * <0 Negative errno (for testing errors) + * 0 End-of-file + * 1 Success + */ +void recv_byte(int fd, int expected_ret, int flags) +{ + uint8_t byte; + + recv_buf(fd, &byte, sizeof(byte), flags, expected_ret); + if (byte != 'A') { fprintf(stderr, "unexpected byte read %c\n", byte); exit(EXIT_FAILURE); diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h index fb99208a95ea..e5407677ce05 100644 --- a/tools/testing/vsock/util.h +++ b/tools/testing/vsock/util.h @@ -42,6 +42,9 @@ int vsock_stream_accept(unsigned int cid, unsigned int port, int vsock_seqpacket_accept(unsigned int cid, unsigned int port, struct sockaddr_vm *clientaddrp); void vsock_wait_remote_close(int fd); +void send_buf(int fd, const void *buf, size_t len, int flags, + ssize_t expected_ret); +void recv_buf(int fd, void *buf, size_t len, int flags, ssize_t expected_ret); void send_byte(int fd, int expected_ret, int flags); void recv_byte(int fd, int expected_ret, int flags); void run_tests(const struct test_case *test_cases, diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c index 90718c2fd4ea..da4cb819a183 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -19,6 +19,7 @@ #include <time.h> #include <sys/mman.h> #include <poll.h> +#include <signal.h> #include "timeout.h" #include "control.h" @@ -261,7 +262,6 @@ static void test_msg_peek_client(const struct test_opts *opts, bool seqpacket) { unsigned char buf[MSG_PEEK_BUF_LEN]; - ssize_t send_size; int fd; int i; @@ -280,17 +280,7 @@ static void test_msg_peek_client(const struct test_opts *opts, control_expectln("SRVREADY"); - send_size = send(fd, buf, sizeof(buf), 0); - - if (send_size < 0) { - perror("send"); - exit(EXIT_FAILURE); - } - - if (send_size != sizeof(buf)) { - fprintf(stderr, "Invalid send size %zi\n", send_size); - exit(EXIT_FAILURE); - } + send_buf(fd, buf, sizeof(buf), 0, sizeof(buf)); close(fd); } @@ -301,7 +291,6 @@ static void test_msg_peek_server(const struct test_opts *opts, unsigned char buf_half[MSG_PEEK_BUF_LEN / 2]; unsigned char buf_normal[MSG_PEEK_BUF_LEN]; unsigned char buf_peek[MSG_PEEK_BUF_LEN]; - ssize_t res; int fd; if (seqpacket) @@ -315,34 +304,16 @@ static void test_msg_peek_server(const struct test_opts *opts, } /* Peek from empty socket. */ - res = recv(fd, buf_peek, sizeof(buf_peek), MSG_PEEK | MSG_DONTWAIT); - if (res != -1) { - fprintf(stderr, "expected recv(2) failure, got %zi\n", res); - exit(EXIT_FAILURE); - } - - if (errno != EAGAIN) { - perror("EAGAIN expected"); - exit(EXIT_FAILURE); - } + recv_buf(fd, buf_peek, sizeof(buf_peek), MSG_PEEK | MSG_DONTWAIT, + -EAGAIN); control_writeln("SRVREADY"); /* Peek part of data. */ - res = recv(fd, buf_half, sizeof(buf_half), MSG_PEEK); - if (res != sizeof(buf_half)) { - fprintf(stderr, "recv(2) + MSG_PEEK, expected %zu, got %zi\n", - sizeof(buf_half), res); - exit(EXIT_FAILURE); - } + recv_buf(fd, buf_half, sizeof(buf_half), MSG_PEEK, sizeof(buf_half)); /* Peek whole data. */ - res = recv(fd, buf_peek, sizeof(buf_peek), MSG_PEEK); - if (res != sizeof(buf_peek)) { - fprintf(stderr, "recv(2) + MSG_PEEK, expected %zu, got %zi\n", - sizeof(buf_peek), res); - exit(EXIT_FAILURE); - } + recv_buf(fd, buf_peek, sizeof(buf_peek), MSG_PEEK, sizeof(buf_peek)); /* Compare partial and full peek. */ if (memcmp(buf_half, buf_peek, sizeof(buf_half))) { @@ -355,22 +326,11 @@ static void test_msg_peek_server(const struct test_opts *opts, * so check it with MSG_PEEK. We must get length * of the message. */ - res = recv(fd, buf_half, sizeof(buf_half), MSG_PEEK | - MSG_TRUNC); - if (res != sizeof(buf_peek)) { - fprintf(stderr, - "recv(2) + MSG_PEEK | MSG_TRUNC, exp %zu, got %zi\n", - sizeof(buf_half), res); - exit(EXIT_FAILURE); - } + recv_buf(fd, buf_half, sizeof(buf_half), MSG_PEEK | MSG_TRUNC, + sizeof(buf_peek)); } - res = recv(fd, buf_normal, sizeof(buf_normal), 0); - if (res != sizeof(buf_normal)) { - fprintf(stderr, "recv(2), expected %zu, got %zi\n", - sizeof(buf_normal), res); - exit(EXIT_FAILURE); - } + recv_buf(fd, buf_normal, sizeof(buf_normal), 0, sizeof(buf_normal)); /* Compare full peek and normal read. */ if (memcmp(buf_peek, buf_normal, sizeof(buf_peek))) { @@ -415,7 +375,6 @@ static void test_seqpacket_msg_bounds_client(const struct test_opts *opts) msg_count = SOCK_BUF_SIZE / MAX_MSG_SIZE; for (int i = 0; i < msg_count; i++) { - ssize_t send_size; size_t buf_size; int flags; void *buf; @@ -443,17 +402,7 @@ static void test_seqpacket_msg_bounds_client(const struct test_opts *opts) flags = 0; } - send_size = send(fd, buf, buf_size, flags); - - if (send_size < 0) { - perror("send"); - exit(EXIT_FAILURE); - } - - if (send_size != buf_size) { - fprintf(stderr, "Invalid send size\n"); - exit(EXIT_FAILURE); - } + send_buf(fd, buf, buf_size, flags, buf_size); /* * Hash sum is computed at both client and server in @@ -554,10 +503,7 @@ static void test_seqpacket_msg_trunc_client(const struct test_opts *opts) exit(EXIT_FAILURE); } - if (send(fd, buf, sizeof(buf), 0) != sizeof(buf)) { - perror("send failed"); - exit(EXIT_FAILURE); - } + send_buf(fd, buf, sizeof(buf), 0, sizeof(buf)); control_writeln("SENDDONE"); close(fd); @@ -679,7 +625,6 @@ static void test_seqpacket_timeout_server(const struct test_opts *opts) static void test_seqpacket_bigmsg_client(const struct test_opts *opts) { unsigned long sock_buf_size; - ssize_t send_size; socklen_t len; void *data; int fd; @@ -706,18 +651,7 @@ static void test_seqpacket_bigmsg_client(const struct test_opts *opts) exit(EXIT_FAILURE); } - send_size = send(fd, data, sock_buf_size, 0); - if (send_size != -1) { - fprintf(stderr, "expected 'send(2)' failure, got %zi\n", - send_size); - exit(EXIT_FAILURE); - } - - if (errno != EMSGSIZE) { - fprintf(stderr, "expected EMSGSIZE in 'errno', got %i\n", - errno); - exit(EXIT_FAILURE); - } + send_buf(fd, data, sock_buf_size, 0, -EMSGSIZE); control_writeln("CLISENT"); @@ -771,15 +705,9 @@ static void test_seqpacket_invalid_rec_buffer_client(const struct test_opts *opt memset(buf1, BUF_PATTERN_1, buf_size); memset(buf2, BUF_PATTERN_2, buf_size); - if (send(fd, buf1, buf_size, 0) != buf_size) { - perror("send failed"); - exit(EXIT_FAILURE); - } + send_buf(fd, buf1, buf_size, 0, buf_size); - if (send(fd, buf2, buf_size, 0) != buf_size) { - perror("send failed"); - exit(EXIT_FAILURE); - } + send_buf(fd, buf2, buf_size, 0, buf_size); close(fd); } @@ -900,7 +828,6 @@ static void test_stream_poll_rcvlowat_client(const struct test_opts *opts) unsigned long lowat_val = RCVLOWAT_BUF_SIZE; char buf[RCVLOWAT_BUF_SIZE]; struct pollfd fds; - ssize_t read_res; short poll_flags; int fd; @@ -955,12 +882,7 @@ static void test_stream_poll_rcvlowat_client(const struct test_opts *opts) /* Use MSG_DONTWAIT, if call is going to wait, EAGAIN * will be returned. */ - read_res = recv(fd, buf, sizeof(buf), MSG_DONTWAIT); - if (read_res != RCVLOWAT_BUF_SIZE) { - fprintf(stderr, "Unexpected recv result %zi\n", - read_res); - exit(EXIT_FAILURE); - } + recv_buf(fd, buf, sizeof(buf), MSG_DONTWAIT, RCVLOWAT_BUF_SIZE); control_writeln("POLLDONE"); @@ -972,7 +894,7 @@ static void test_stream_poll_rcvlowat_client(const struct test_opts *opts) static void test_inv_buf_client(const struct test_opts *opts, bool stream) { unsigned char data[INV_BUF_TEST_DATA_LEN] = {0}; - ssize_t ret; + ssize_t expected_ret; int fd; if (stream) @@ -988,39 +910,18 @@ static void test_inv_buf_client(const struct test_opts *opts, bool stream) control_expectln("SENDDONE"); /* Use invalid buffer here. */ - ret = recv(fd, NULL, sizeof(data), 0); - if (ret != -1) { - fprintf(stderr, "expected recv(2) failure, got %zi\n", ret); - exit(EXIT_FAILURE); - } - - if (errno != EFAULT) { - fprintf(stderr, "unexpected recv(2) errno %d\n", errno); - exit(EXIT_FAILURE); - } - - ret = recv(fd, data, sizeof(data), MSG_DONTWAIT); + recv_buf(fd, NULL, sizeof(data), 0, -EFAULT); if (stream) { /* For SOCK_STREAM we must continue reading. */ - if (ret != sizeof(data)) { - fprintf(stderr, "expected recv(2) success, got %zi\n", ret); - exit(EXIT_FAILURE); - } - /* Don't check errno in case of success. */ + expected_ret = sizeof(data); } else { /* For SOCK_SEQPACKET socket's queue must be empty. */ - if (ret != -1) { - fprintf(stderr, "expected recv(2) failure, got %zi\n", ret); - exit(EXIT_FAILURE); - } - - if (errno != EAGAIN) { - fprintf(stderr, "unexpected recv(2) errno %d\n", errno); - exit(EXIT_FAILURE); - } + expected_ret = -EAGAIN; } + recv_buf(fd, data, sizeof(data), MSG_DONTWAIT, expected_ret); + control_writeln("DONE"); close(fd); @@ -1029,7 +930,6 @@ static void test_inv_buf_client(const struct test_opts *opts, bool stream) static void test_inv_buf_server(const struct test_opts *opts, bool stream) { unsigned char data[INV_BUF_TEST_DATA_LEN] = {0}; - ssize_t res; int fd; if (stream) @@ -1042,11 +942,7 @@ static void test_inv_buf_server(const struct test_opts *opts, bool stream) exit(EXIT_FAILURE); } - res = send(fd, data, sizeof(data), 0); - if (res != sizeof(data)) { - fprintf(stderr, "unexpected send(2) result %zi\n", res); - exit(EXIT_FAILURE); - } + send_buf(fd, data, sizeof(data), 0, sizeof(data)); control_writeln("SENDDONE"); @@ -1080,7 +976,6 @@ static void test_seqpacket_inv_buf_server(const struct test_opts *opts) static void test_stream_virtio_skb_merge_client(const struct test_opts *opts) { - ssize_t res; int fd; fd = vsock_stream_connect(opts->peer_cid, 1234); @@ -1090,22 +985,14 @@ static void test_stream_virtio_skb_merge_client(const struct test_opts *opts) } /* Send first skbuff. */ - res = send(fd, HELLO_STR, strlen(HELLO_STR), 0); - if (res != strlen(HELLO_STR)) { - fprintf(stderr, "unexpected send(2) result %zi\n", res); - exit(EXIT_FAILURE); - } + send_buf(fd, HELLO_STR, strlen(HELLO_STR), 0, strlen(HELLO_STR)); control_writeln("SEND0"); /* Peer reads part of first skbuff. */ control_expectln("REPLY0"); /* Send second skbuff, it will be appended to the first. */ - res = send(fd, WORLD_STR, strlen(WORLD_STR), 0); - if (res != strlen(WORLD_STR)) { - fprintf(stderr, "unexpected send(2) result %zi\n", res); - exit(EXIT_FAILURE); - } + send_buf(fd, WORLD_STR, strlen(WORLD_STR), 0, strlen(WORLD_STR)); control_writeln("SEND1"); /* Peer reads merged skbuff packet. */ @@ -1116,8 +1003,8 @@ static void test_stream_virtio_skb_merge_client(const struct test_opts *opts) static void test_stream_virtio_skb_merge_server(const struct test_opts *opts) { + size_t read = 0, to_read; unsigned char buf[64]; - ssize_t res; int fd; fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL); @@ -1129,26 +1016,21 @@ static void test_stream_virtio_skb_merge_server(const struct test_opts *opts) control_expectln("SEND0"); /* Read skbuff partially. */ - res = recv(fd, buf, 2, 0); - if (res != 2) { - fprintf(stderr, "expected recv(2) returns 2 bytes, got %zi\n", res); - exit(EXIT_FAILURE); - } + to_read = 2; + recv_buf(fd, buf + read, to_read, 0, to_read); + read += to_read; control_writeln("REPLY0"); control_expectln("SEND1"); - res = recv(fd, buf + 2, sizeof(buf) - 2, 0); - if (res != 8) { - fprintf(stderr, "expected recv(2) returns 8 bytes, got %zi\n", res); - exit(EXIT_FAILURE); - } + /* Read the rest of both buffers */ + to_read = strlen(HELLO_STR WORLD_STR) - read; + recv_buf(fd, buf + read, to_read, 0, to_read); + read += to_read; - res = recv(fd, buf, sizeof(buf) - 8 - 2, MSG_DONTWAIT); - if (res != -1) { - fprintf(stderr, "expected recv(2) failure, got %zi\n", res); - exit(EXIT_FAILURE); - } + /* No more bytes should be there */ + to_read = sizeof(buf) - read; + recv_buf(fd, buf + read, to_read, MSG_DONTWAIT, -EAGAIN); if (memcmp(buf, HELLO_STR WORLD_STR, strlen(HELLO_STR WORLD_STR))) { fprintf(stderr, "pattern mismatch\n"); @@ -1170,6 +1052,133 @@ static void test_seqpacket_msg_peek_server(const struct test_opts *opts) return test_msg_peek_server(opts, true); } +static sig_atomic_t have_sigpipe; + +static void sigpipe(int signo) +{ + have_sigpipe = 1; +} + +static void test_stream_check_sigpipe(int fd) +{ + ssize_t res; + + have_sigpipe = 0; + + res = send(fd, "A", 1, 0); + if (res != -1) { + fprintf(stderr, "expected send(2) failure, got %zi\n", res); + exit(EXIT_FAILURE); + } + + if (!have_sigpipe) { + fprintf(stderr, "SIGPIPE expected\n"); + exit(EXIT_FAILURE); + } + + have_sigpipe = 0; + + res = send(fd, "A", 1, MSG_NOSIGNAL); + if (res != -1) { + fprintf(stderr, "expected send(2) failure, got %zi\n", res); + exit(EXIT_FAILURE); + } + + if (have_sigpipe) { + fprintf(stderr, "SIGPIPE not expected\n"); + exit(EXIT_FAILURE); + } +} + +static void test_stream_shutwr_client(const struct test_opts *opts) +{ + int fd; + + struct sigaction act = { + .sa_handler = sigpipe, + }; + + sigaction(SIGPIPE, &act, NULL); + + fd = vsock_stream_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + if (shutdown(fd, SHUT_WR)) { + perror("shutdown"); + exit(EXIT_FAILURE); + } + + test_stream_check_sigpipe(fd); + + control_writeln("CLIENTDONE"); + + close(fd); +} + +static void test_stream_shutwr_server(const struct test_opts *opts) +{ + int fd; + + fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + control_expectln("CLIENTDONE"); + + close(fd); +} + +static void test_stream_shutrd_client(const struct test_opts *opts) +{ + int fd; + + struct sigaction act = { + .sa_handler = sigpipe, + }; + + sigaction(SIGPIPE, &act, NULL); + + fd = vsock_stream_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + control_expectln("SHUTRDDONE"); + + test_stream_check_sigpipe(fd); + + control_writeln("CLIENTDONE"); + + close(fd); +} + +static void test_stream_shutrd_server(const struct test_opts *opts) +{ + int fd; + + fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + if (shutdown(fd, SHUT_RD)) { + perror("shutdown"); + exit(EXIT_FAILURE); + } + + control_writeln("SHUTRDDONE"); + control_expectln("CLIENTDONE"); + + close(fd); +} + static struct test_case test_cases[] = { { .name = "SOCK_STREAM connection reset", @@ -1250,6 +1259,16 @@ static struct test_case test_cases[] = { .run_client = test_seqpacket_msg_peek_client, .run_server = test_seqpacket_msg_peek_server, }, + { + .name = "SOCK_STREAM SHUT_WR", + .run_client = test_stream_shutwr_client, + .run_server = test_stream_shutwr_server, + }, + { + .name = "SOCK_STREAM SHUT_RD", + .run_client = test_stream_shutrd_client, + .run_server = test_stream_shutrd_server, + }, {}, }; |