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| author | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
| commit | cf40a76e7d5874bb25f4404eecc58a2e033af885 (patch) | |
| tree | 8fd81cbea03c87b3d41d7ae5b1d11eadd35d6ef5 /samples/bpf/tcp_clamp_kern.c | |
| parent | ab5348c9c23cd253f5902980d2d8fe067dc24c82 (diff) | |
| parent | 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff) | |
Merge tag 'v4.15-rc1' into next-seccomp
Linux 4.15-rc1
Diffstat (limited to 'samples/bpf/tcp_clamp_kern.c')
| -rw-r--r-- | samples/bpf/tcp_clamp_kern.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/samples/bpf/tcp_clamp_kern.c b/samples/bpf/tcp_clamp_kern.c index d68eadd9ca2d..f4225c9d2c0c 100644 --- a/samples/bpf/tcp_clamp_kern.c +++ b/samples/bpf/tcp_clamp_kern.c @@ -41,8 +41,10 @@ int bpf_clamp(struct bpf_sock_ops *skops) /* For testing purposes, only execute rest of BPF program * if neither port numberis 55601 */ - if (bpf_ntohl(skops->remote_port) != 55601 && skops->local_port != 55601) - return -1; + if (bpf_ntohl(skops->remote_port) != 55601 && skops->local_port != 55601) { + skops->reply = -1; + return 0; + } op = (int) skops->op; @@ -66,9 +68,9 @@ int bpf_clamp(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, @@ -80,12 +82,12 @@ int bpf_clamp(struct bpf_sock_ops *skops) rv = bpf_setsockopt(skops, SOL_TCP, TCP_BPF_SNDCWND_CLAMP, &clamp, sizeof(clamp)); - rv = rv*100 + 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_SNDBUF, &bufsize, + sizeof(bufsize)); + rv += bpf_setsockopt(skops, SOL_SOCKET, + SO_RCVBUF, &bufsize, + sizeof(bufsize)); break; default: rv = -1; |