diff options
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/tcp.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 4ecabf4989de..55ad9db99596 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -2934,6 +2934,7 @@ static inline int tcp_call_bpf_3arg(struct sock *sk, int op, u32 arg1, u32 arg2, static inline void tcp_clear_sock_ops_cb_flags(struct sock *sk) { tcp_sk(sk)->bpf_sock_ops_cb_flags = 0; + WRITE_ONCE(tcp_sk(sk)->bpf_tcp_ops_flags, 0); } #else @@ -2989,7 +2990,7 @@ struct bpf_tcp_ops { /* Called when the retransmission timer fires. */ void (*rto)(struct sock *sk); - /* Called on every RTT sample. + /* Called on every RTT sample if BPF_TCP_OPS_FLAG_RTT is enabled. * @mrtt: the measured RTT, in microseconds. * @srtt: the updated smoothed RTT. */ @@ -3016,6 +3017,10 @@ struct bpf_tcp_ops { * Parse the TCP header options of an incoming skb received on an * established connection. Use bpf_dynptr_from_skb()/bpf_skb_load_bytes() * to access the options. + * + * Called if BPF_TCP_OPS_FLAG_PARSE_HDR_OPT_ALL is enabled, or if + * BPF_TCP_OPS_FLAG_PARSE_HDR_OPT_UNKNOWN is enabled and an unknown + * option is received. */ void (*parse_hdr)(struct sock *sk, struct sk_buff *skb); @@ -3023,6 +3028,8 @@ struct bpf_tcp_ops { * Reserve space in the outgoing TCP header for options to be written * later by write_hdr_opt(). Call bpf_reserve_hdr_opt() to reserve bytes. * + * Called if BPF_TCP_OPS_FLAG_WRITE_HDR_OPT is enabled. + * * @skb: outgoing packet. NULL when called from tcp_current_mss() * (MSS sizing). * @req: request_sock on the synack path; NULL otherwise. @@ -3041,6 +3048,8 @@ struct bpf_tcp_ops { * Use bpf_store_hdr_opt() to write; it appends within the reserved window * shared with legacy SOCKOPS. * + * Called if BPF_TCP_OPS_FLAG_WRITE_HDR_OPT is enabled. + * * @skb: outgoing packet. * @req: request_sock on the synack path; NULL otherwise. * @syn_skb: incoming SYN on the synack path; NULL otherwise. |