diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/bind4_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/bind4_prog.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/bind4_prog.c b/tools/testing/selftests/bpf/progs/bind4_prog.c index 115a3b0ad984..474c6a62078a 100644 --- a/tools/testing/selftests/bpf/progs/bind4_prog.c +++ b/tools/testing/selftests/bpf/progs/bind4_prog.c @@ -57,6 +57,27 @@ static __inline int bind_to_device(struct bpf_sock_addr *ctx) return 0; } +static __inline int bind_reuseport(struct bpf_sock_addr *ctx) +{ + int val = 1; + + if (bpf_setsockopt(ctx, SOL_SOCKET, SO_REUSEPORT, + &val, sizeof(val))) + return 1; + if (bpf_getsockopt(ctx, SOL_SOCKET, SO_REUSEPORT, + &val, sizeof(val)) || !val) + return 1; + val = 0; + if (bpf_setsockopt(ctx, SOL_SOCKET, SO_REUSEPORT, + &val, sizeof(val))) + return 1; + if (bpf_getsockopt(ctx, SOL_SOCKET, SO_REUSEPORT, + &val, sizeof(val)) || val) + return 1; + + return 0; +} + static __inline int misc_opts(struct bpf_sock_addr *ctx, int opt) { int old, tmp, new = 0xeb9f; @@ -127,6 +148,10 @@ int bind_v4_prog(struct bpf_sock_addr *ctx) if (misc_opts(ctx, SO_MARK) || misc_opts(ctx, SO_PRIORITY)) return 0; + /* Set reuseport and unset */ + if (bind_reuseport(ctx)) + return 0; + ctx->user_ip4 = bpf_htonl(SERV4_REWRITE_IP); ctx->user_port = bpf_htons(SERV4_REWRITE_PORT); |