diff options
| author | Geliang Tang <geliang.tang@suse.com> | 2022-05-19 16:30:15 -0700 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-05-20 15:36:08 -0700 |
| commit | ccc090f469000fd757049028eeb0dff43013f7c1 (patch) | |
| tree | 2c49dbc78c86570fd271d88e06685d88d6c591d0 /tools/testing/selftests/bpf/progs/mptcp_sock.c | |
| parent | 0266223467728d553b99adea769d9ff3b6e41372 (diff) | |
selftests/bpf: Verify ca_name of struct mptcp_sock
This patch verifies another member of struct mptcp_sock, ca_name. Add a
new function get_msk_ca_name() to read the sysctl tcp_congestion_control
and verify it in verify_msk().
v3: Access the sysctl through the filesystem to avoid compatibility
issues with the busybox sysctl command.
v4: use ASSERT_* instead of CHECK_FAIL (Andrii)
v5: use ASSERT_STRNEQ() instead of strncmp() (Andrii)
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Link: https://lore.kernel.org/bpf/20220519233016.105670-7-mathew.j.martineau@linux.intel.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs/mptcp_sock.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/mptcp_sock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/mptcp_sock.c b/tools/testing/selftests/bpf/progs/mptcp_sock.c index f038b0e699a2..65e2b5543fc7 100644 --- a/tools/testing/selftests/bpf/progs/mptcp_sock.c +++ b/tools/testing/selftests/bpf/progs/mptcp_sock.c @@ -13,6 +13,7 @@ struct mptcp_storage { __u32 invoked; __u32 is_mptcp; __u32 token; + char ca_name[TCP_CA_NAME_MAX]; }; struct { @@ -51,6 +52,7 @@ int _sockops(struct bpf_sock_ops *ctx) return 1; storage->token = 0; + __builtin_memset(storage->ca_name, 0, TCP_CA_NAME_MAX); } else { msk = bpf_skc_to_mptcp_sock(sk); if (!msk) @@ -62,6 +64,7 @@ int _sockops(struct bpf_sock_ops *ctx) return 1; storage->token = msk->token; + __builtin_memcpy(storage->ca_name, msk->ca_name, TCP_CA_NAME_MAX); } storage->invoked++; storage->is_mptcp = is_mptcp; |