diff options
| author | Jordan Rife <jrife@google.com> | 2024-05-10 14:02:33 -0500 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-05-12 17:10:42 -0700 |
| commit | bc467e953e4fbafd94d04c355f875bf1adf438e2 (patch) | |
| tree | 1c303bfb6d17fe713f8c0d371084c2e2fcf574b6 /tools/testing/selftests/bpf/progs/getsockname4_prog.c | |
| parent | sefltests/bpf: Expand sockaddr hook deny tests (diff) | |
| download | linux-bc467e953e4fbafd94d04c355f875bf1adf438e2.tar.gz linux-bc467e953e4fbafd94d04c355f875bf1adf438e2.zip | |
selftests/bpf: Expand getsockname and getpeername tests
This expands coverage for getsockname and getpeername hooks to include
getsockname4, getsockname6, getpeername4, and getpeername6.
Signed-off-by: Jordan Rife <jrife@google.com>
Link: https://lore.kernel.org/r/20240510190246.3247730-17-jrife@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/getsockname4_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/getsockname4_prog.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/getsockname4_prog.c b/tools/testing/selftests/bpf/progs/getsockname4_prog.c new file mode 100644 index 000000000000..e298487c6347 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/getsockname4_prog.c @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2024 Google LLC */ + +#include "vmlinux.h" + +#include <string.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> +#include <bpf/bpf_core_read.h> +#include "bpf_kfuncs.h" + +#define REWRITE_ADDRESS_IP4 0xc0a801fe // 192.168.1.254 +#define REWRITE_ADDRESS_PORT4 4040 + +SEC("cgroup/getsockname4") +int getsockname_v4_prog(struct bpf_sock_addr *ctx) +{ + ctx->user_ip4 = bpf_htonl(REWRITE_ADDRESS_IP4); + ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT4); + + return 1; +} + +char _license[] SEC("license") = "GPL"; |