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| author | Daniel Borkmann <daniel@iogearbox.net> | 2017-07-21 00:00:22 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-20 15:20:27 -0700 |
| commit | d655490417ee22da3267fe6592a0ec2023c3c0db (patch) | |
| tree | d6a46018c9e1e644757d89b763e09a4472254d16 | |
| parent | 4cabc5b186b5427b9ee5a7495172542af105f02b (diff) | |
| download | lwn-d655490417ee22da3267fe6592a0ec2023c3c0db.tar.gz lwn-d655490417ee22da3267fe6592a0ec2023c3c0db.zip | |
bpf: allow to specify log level and reduce it for test_verifier
For the test_verifier case, it's quite hard to parse log level 2 to
figure out what's causing an issue when used to log level 1. We do
want to use bpf_verify_program() in order to simulate some of the
tests with strict alignment. So just add an argument to pass the level
and put it to 1 for test_verifier.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | tools/lib/bpf/bpf.c | 4 | ||||
| -rw-r--r-- | tools/lib/bpf/bpf.h | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/test_align.c | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/test_verifier.c | 2 |
4 files changed, 5 insertions, 5 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 7e0405e1651d..412a7c82995a 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -120,7 +120,7 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, size_t insns_cnt, int strict_alignment, const char *license, __u32 kern_version, - char *log_buf, size_t log_buf_sz) + char *log_buf, size_t log_buf_sz, int log_level) { union bpf_attr attr; @@ -131,7 +131,7 @@ int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, attr.license = ptr_to_u64(license); attr.log_buf = ptr_to_u64(log_buf); attr.log_size = log_buf_sz; - attr.log_level = 2; + attr.log_level = log_level; log_buf[0] = 0; attr.kern_version = kern_version; attr.prog_flags = strict_alignment ? BPF_F_STRICT_ALIGNMENT : 0; diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 16de44a14b48..418c86e69bcb 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -38,7 +38,7 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, size_t insns_cnt, int strict_alignment, const char *license, __u32 kern_version, - char *log_buf, size_t log_buf_sz); + char *log_buf, size_t log_buf_sz, int log_level); int bpf_map_update_elem(int fd, const void *key, const void *value, __u64 flags); diff --git a/tools/testing/selftests/bpf/test_align.c b/tools/testing/selftests/bpf/test_align.c index bccebd935907..29793694cbc7 100644 --- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -380,7 +380,7 @@ static int do_test_single(struct bpf_align_test *test) prog_len = probe_filter_length(prog); fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, prog, prog_len, 1, "GPL", 0, - bpf_vlog, sizeof(bpf_vlog)); + bpf_vlog, sizeof(bpf_vlog), 2); if (fd_prog < 0) { printf("Failed to load program.\n"); printf("%s", bpf_vlog); diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index 404aec520812..f4d0a1de3925 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -5633,7 +5633,7 @@ static void do_test_single(struct bpf_test *test, bool unpriv, fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT, - "GPL", 0, bpf_vlog, sizeof(bpf_vlog)); + "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1); expected_ret = unpriv && test->result_unpriv != UNDEF ? test->result_unpriv : test->result; |