diff options
Diffstat (limited to 'samples/bpf/tcp_iw_kern.c')
| -rw-r--r-- | samples/bpf/tcp_iw_kern.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/samples/bpf/tcp_iw_kern.c b/samples/bpf/tcp_iw_kern.c index 23c5122ef819..4ca5ecc9f580 100644 --- a/samples/bpf/tcp_iw_kern.c +++ b/samples/bpf/tcp_iw_kern.c @@ -42,8 +42,10 @@ int bpf_iw(struct bpf_sock_ops *skops) * if neither port numberis 55601 */ if (bpf_ntohl(skops->remote_port) != 55601 && - skops->local_port != 55601) - return -1; + skops->local_port != 55601) { + skops->reply = -1; + return 1; + } op = (int) skops->op; @@ -62,8 +64,8 @@ int bpf_iw(struct bpf_sock_ops *skops) /* Set sndbuf and rcvbuf of active connections */ rv = bpf_setsockopt(skops, SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize)); - rv = rv*100 + bpf_setsockopt(skops, SOL_SOCKET, SO_RCVBUF, - &bufsize, sizeof(bufsize)); + rv += bpf_setsockopt(skops, SOL_SOCKET, SO_RCVBUF, + &bufsize, sizeof(bufsize)); break; case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB: rv = bpf_setsockopt(skops, SOL_TCP, TCP_BPF_IW, &iw, @@ -73,8 +75,8 @@ int bpf_iw(struct bpf_sock_ops *skops) /* Set sndbuf and rcvbuf of passive connections */ rv = bpf_setsockopt(skops, SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize)); - rv = rv*100 + bpf_setsockopt(skops, SOL_SOCKET, SO_RCVBUF, - &bufsize, sizeof(bufsize)); + rv += bpf_setsockopt(skops, SOL_SOCKET, SO_RCVBUF, + &bufsize, sizeof(bufsize)); break; default: rv = -1; |