diff options
| -rw-r--r-- | include/uapi/linux/bpf.h | 5 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 4 | ||||
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 5 |
3 files changed, 14 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index cc10104f34a0..defa5bb881f4 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -7049,6 +7049,11 @@ enum { * when SK_BPF_CB_TX_TIMESTAMPING * feature is on. */ + BPF_SOCK_OPS_TSTAMP_SENDMSG_CB, /* Called when every sendmsg syscall + * is triggered. It's used to correlate + * sendmsg timestamp with corresponding + * tskey. + */ }; /* List of TCP states. There is a build check in net/ipv4/tcp.c to detect diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 2171e2f045bb..298d1da05bee 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -496,6 +496,10 @@ static void tcp_tx_timestamp(struct sock *sk, struct sockcm_cookie *sockc) if (tsflags & SOF_TIMESTAMPING_TX_RECORD_MASK) shinfo->tskey = TCP_SKB_CB(skb)->seq + skb->len - 1; } + + if (cgroup_bpf_enabled(CGROUP_SOCK_OPS) && + SK_BPF_CB_FLAG_TEST(sk, SK_BPF_CB_TX_TIMESTAMPING) && skb) + bpf_skops_tx_timestamping(sk, skb, BPF_SOCK_OPS_TSTAMP_SENDMSG_CB); } static bool tcp_stream_is_readable(struct sock *sk, int target) diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index cc10104f34a0..defa5bb881f4 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -7049,6 +7049,11 @@ enum { * when SK_BPF_CB_TX_TIMESTAMPING * feature is on. */ + BPF_SOCK_OPS_TSTAMP_SENDMSG_CB, /* Called when every sendmsg syscall + * is triggered. It's used to correlate + * sendmsg timestamp with corresponding + * tskey. + */ }; /* List of TCP states. There is a build check in net/ipv4/tcp.c to detect |