diff options
| author | Jordan Rife <jrife@google.com> | 2024-05-10 14:02:25 -0500 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-05-12 17:10:41 -0700 |
| commit | 54462e8452f139e313e315959e005408cd31a4e6 (patch) | |
| tree | 734c9bbfac75e3c226610c0fc0fb57fab175a173 /tools/testing/selftests/bpf/progs/sendmsg6_prog.c | |
| parent | f46a10483b27cc5a62b45e7e727445de6430e785 (diff) | |
selftests/bpf: Migrate sendmsg6 v4 mapped address tests
Migrate test case from bpf/test_sock_addr.c ensuring that sendmsg
returns -ENOTSUPP when sending to an IPv4-mapped IPv6 address to
prog_tests/sock_addr.c.
Signed-off-by: Jordan Rife <jrife@google.com>
Link: https://lore.kernel.org/r/20240510190246.3247730-9-jrife@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/sendmsg6_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/sendmsg6_prog.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c index 0c1825cb994d..7611d9e17dd1 100644 --- a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c +++ b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c @@ -20,6 +20,11 @@ #define DST_REWRITE_IP6_2 0 #define DST_REWRITE_IP6_3 1 +#define DST_REWRITE_IP6_V4_MAPPED_0 0 +#define DST_REWRITE_IP6_V4_MAPPED_1 0 +#define DST_REWRITE_IP6_V4_MAPPED_2 0x0000FFFF +#define DST_REWRITE_IP6_V4_MAPPED_3 0xc0a80004 // 192.168.0.4 + #define DST_REWRITE_PORT6 6666 SEC("cgroup/sendmsg6") @@ -60,6 +65,26 @@ int sendmsg_v6_prog(struct bpf_sock_addr *ctx) } SEC("cgroup/sendmsg6") +int sendmsg_v6_v4mapped_prog(struct bpf_sock_addr *ctx) +{ + /* Rewrite source. */ + ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0); + ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1); + ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2); + ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3); + + /* Rewrite destination. */ + ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_0); + ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_1); + ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_2); + ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_3); + + ctx->user_port = bpf_htons(DST_REWRITE_PORT6); + + return 1; +} + +SEC("cgroup/sendmsg6") int sendmsg_v6_preserve_dst_prog(struct bpf_sock_addr *ctx) { return 1; |