diff options
Diffstat (limited to 'include/trace/events/tcp.h')
| -rw-r--r-- | include/trace/events/tcp.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/include/trace/events/tcp.h b/include/trace/events/tcp.h index bb00459d2d4d..b5ae3fbb74c8 100644 --- a/include/trace/events/tcp.h +++ b/include/trace/events/tcp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #undef TRACE_SYSTEM #define TRACE_SYSTEM tcp @@ -8,6 +9,7 @@ #include <linux/tcp.h> #include <linux/tracepoint.h> #include <net/ipv6.h> +#include <net/tcp.h> #define TP_STORE_V4MAPPED(__entry, saddr, daddr) \ do { \ @@ -254,6 +256,101 @@ TRACE_EVENT(tcp_retransmit_synack, __entry->saddr_v6, __entry->daddr_v6) ); + +#define TP_STORE_ADDR_PORTS_V4(__entry, inet, sk) \ + do { \ + struct sockaddr_in *v4 = (void *)__entry->saddr; \ + \ + v4->sin_family = AF_INET; \ + v4->sin_port = inet->inet_sport; \ + v4->sin_addr.s_addr = inet->inet_saddr; \ + v4 = (void *)__entry->daddr; \ + v4->sin_family = AF_INET; \ + v4->sin_port = inet->inet_dport; \ + v4->sin_addr.s_addr = inet->inet_daddr; \ + } while (0) + +#if IS_ENABLED(CONFIG_IPV6) + +#define TP_STORE_ADDR_PORTS(__entry, inet, sk) \ + do { \ + if (sk->sk_family == AF_INET6) { \ + struct sockaddr_in6 *v6 = (void *)__entry->saddr; \ + \ + v6->sin6_family = AF_INET6; \ + v6->sin6_port = inet->inet_sport; \ + v6->sin6_addr = inet6_sk(sk)->saddr; \ + v6 = (void *)__entry->daddr; \ + v6->sin6_family = AF_INET6; \ + v6->sin6_port = inet->inet_dport; \ + v6->sin6_addr = sk->sk_v6_daddr; \ + } else \ + TP_STORE_ADDR_PORTS_V4(__entry, inet, sk); \ + } while (0) + +#else + +#define TP_STORE_ADDR_PORTS(__entry, inet, sk) \ + TP_STORE_ADDR_PORTS_V4(__entry, inet, sk); + +#endif + +TRACE_EVENT(tcp_probe, + + TP_PROTO(struct sock *sk, struct sk_buff *skb), + + TP_ARGS(sk, skb), + + TP_STRUCT__entry( + /* sockaddr_in6 is always bigger than sockaddr_in */ + __array(__u8, saddr, sizeof(struct sockaddr_in6)) + __array(__u8, daddr, sizeof(struct sockaddr_in6)) + __field(__u16, sport) + __field(__u16, dport) + __field(__u32, mark) + __field(__u16, length) + __field(__u32, snd_nxt) + __field(__u32, snd_una) + __field(__u32, snd_cwnd) + __field(__u32, ssthresh) + __field(__u32, snd_wnd) + __field(__u32, srtt) + __field(__u32, rcv_wnd) + ), + + TP_fast_assign( + const struct tcp_sock *tp = tcp_sk(sk); + const struct inet_sock *inet = inet_sk(sk); + + memset(__entry->saddr, 0, sizeof(struct sockaddr_in6)); + memset(__entry->daddr, 0, sizeof(struct sockaddr_in6)); + + TP_STORE_ADDR_PORTS(__entry, inet, sk); + + /* For filtering use */ + __entry->sport = ntohs(inet->inet_sport); + __entry->dport = ntohs(inet->inet_dport); + __entry->mark = skb->mark; + + __entry->length = skb->len; + __entry->snd_nxt = tp->snd_nxt; + __entry->snd_una = tp->snd_una; + __entry->snd_cwnd = tp->snd_cwnd; + __entry->snd_wnd = tp->snd_wnd; + __entry->rcv_wnd = tp->rcv_wnd; + __entry->ssthresh = tcp_current_ssthresh(sk); + __entry->srtt = tp->srtt_us >> 3; + ), + + TP_printk("src=%pISpc dest=%pISpc mark=%#x length=%d snd_nxt=%#x " + "snd_una=%#x snd_cwnd=%u ssthresh=%u snd_wnd=%u srtt=%u " + "rcv_wnd=%u", + __entry->saddr, __entry->daddr, __entry->mark, + __entry->length, __entry->snd_nxt, __entry->snd_una, + __entry->snd_cwnd, __entry->ssthresh, __entry->snd_wnd, + __entry->srtt, __entry->rcv_wnd) +); + #endif /* _TRACE_TCP_H */ /* This part must be outside protection */ |