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| author | Toke Høiland-Jørgensen <toke@redhat.com> | 2020-04-24 15:34:28 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-04-24 17:34:30 -0700 |
| commit | 1d8a0af5ee1ad219a9ebd9b43559b165bcb3ff40 (patch) | |
| tree | a26ba95e6cff26762f51193696a29df95026b497 /tools/testing/selftests/bpf/progs/connect4_prog.c | |
| parent | 03f87c0b45b177ba5f6b4a9bbe9f95e4aba31026 (diff) | |
| download | linux-stable-1d8a0af5ee1ad219a9ebd9b43559b165bcb3ff40.tar.gz linux-stable-1d8a0af5ee1ad219a9ebd9b43559b165bcb3ff40.tar.bz2 linux-stable-1d8a0af5ee1ad219a9ebd9b43559b165bcb3ff40.zip | |
selftests/bpf: Add test for freplace program with expected_attach_type
This adds a new selftest that tests the ability to attach an freplace
program to a program type that relies on the expected_attach_type of the
target program to pass verification.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158773526831.293902.16011743438619684815.stgit@toke.dk
Diffstat (limited to 'tools/testing/selftests/bpf/progs/connect4_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/connect4_prog.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c index 75085119c5bb..ad3c498a8150 100644 --- a/tools/testing/selftests/bpf/progs/connect4_prog.c +++ b/tools/testing/selftests/bpf/progs/connect4_prog.c @@ -18,11 +18,25 @@ int _version SEC("version") = 1; +__attribute__ ((noinline)) +int do_bind(struct bpf_sock_addr *ctx) +{ + struct sockaddr_in sa = {}; + + sa.sin_family = AF_INET; + sa.sin_port = bpf_htons(0); + sa.sin_addr.s_addr = bpf_htonl(SRC_REWRITE_IP4); + + if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0) + return 0; + + return 1; +} + SEC("cgroup/connect4") int connect_v4_prog(struct bpf_sock_addr *ctx) { struct bpf_sock_tuple tuple = {}; - struct sockaddr_in sa; struct bpf_sock *sk; /* Verify that new destination is available. */ @@ -56,17 +70,7 @@ int connect_v4_prog(struct bpf_sock_addr *ctx) ctx->user_ip4 = bpf_htonl(DST_REWRITE_IP4); ctx->user_port = bpf_htons(DST_REWRITE_PORT4); - /* Rewrite source. */ - memset(&sa, 0, sizeof(sa)); - - sa.sin_family = AF_INET; - sa.sin_port = bpf_htons(0); - sa.sin_addr.s_addr = bpf_htonl(SRC_REWRITE_IP4); - - if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0) - return 0; - - return 1; + return do_bind(ctx) ? 1 : 0; } char _license[] SEC("license") = "GPL"; |