lwn.git/tools/testing/selftests/bpf/progs/recvmsg6_prog.c, branch masterLinux kernel documentation tree maintained by Jonathan Corbethttp://mirrors.hust.edu.cn/git/lwn.git/atom?h=master2023-03-10T16:14:08+00:00selftests/bpf: fix lots of silly mistakes pointed out by compiler2023-03-10T16:14:08+00:00Andrii Nakryikoandrii@kernel.org2023-03-09T05:40:14+00:00urn:sha1:c8ed66859397237c649998c58a68a86b8ea5f417
Once we enable -Wall for BPF sources, compiler will complain about lots
of unused variables, variables that are set but never read, etc.
Fix all these issues first before enabling -Wall in Makefile.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230309054015.4068562-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG2021-01-29T01:09:31+00:00Stanislav Fomichevsdf@google.com2021-01-27T23:28:53+00:00urn:sha1:4c3384d7abe58a68d78fd1b8b3bffbf62e1e29a1
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on a locked socket.
Note that we could remove the switch for prog->expected_attach_type altogether
since all current sock_addr attach types are covered. However, it makes sense
to keep it as a safe-guard in case new sock_addr attach types are added that
might not operate on a locked socket. Therefore, avoid to let this slip through.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-5-sdf@google.com
selftests/bpf: Rewrite recvmsg{4,6} asm progs to c in test_sock_addr2021-01-29T01:09:05+00:00Stanislav Fomichevsdf@google.com2021-01-27T23:28:52+00:00urn:sha1:357490601621d077c2c90473fec66d7a8badedcc
I'll extend them in the next patch. It's easier to work with C
than with asm.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-4-sdf@google.com