1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define TRACE_SYSTEM tcp
5 #if !defined(_TRACE_TCP_H) || defined(TRACE_HEADER_MULTI_READ)
8 #include <linux/ipv6.h>
10 #include <linux/tracepoint.h>
13 #include <linux/sock_diag.h>
15 #define TP_STORE_V4MAPPED(__entry, saddr, daddr) \
17 struct in6_addr *pin6; \
19 pin6 = (struct in6_addr *)__entry->saddr_v6; \
20 ipv6_addr_set_v4mapped(saddr, pin6); \
21 pin6 = (struct in6_addr *)__entry->daddr_v6; \
22 ipv6_addr_set_v4mapped(daddr, pin6); \
25 #if IS_ENABLED(CONFIG_IPV6)
26 #define TP_STORE_ADDRS(__entry, saddr, daddr, saddr6, daddr6) \
28 if (sk->sk_family == AF_INET6) { \
29 struct in6_addr *pin6; \
31 pin6 = (struct in6_addr *)__entry->saddr_v6; \
33 pin6 = (struct in6_addr *)__entry->daddr_v6; \
36 TP_STORE_V4MAPPED(__entry, saddr, daddr); \
40 #define TP_STORE_ADDRS(__entry, saddr, daddr, saddr6, daddr6) \
41 TP_STORE_V4MAPPED(__entry, saddr, daddr)
45 * tcp event with arguments sk and skb
47 * Note: this class requires a valid sk pointer; while skb pointer could
50 DECLARE_EVENT_CLASS(tcp_event_sk_skb,
52 TP_PROTO(const struct sock *sk, const struct sk_buff *skb),
57 __field(const void *, skbaddr)
58 __field(const void *, skaddr)
61 __array(__u8, saddr, 4)
62 __array(__u8, daddr, 4)
63 __array(__u8, saddr_v6, 16)
64 __array(__u8, daddr_v6, 16)
68 struct inet_sock *inet = inet_sk(sk);
71 __entry->skbaddr = skb;
74 __entry->sport = ntohs(inet->inet_sport);
75 __entry->dport = ntohs(inet->inet_dport);
77 p32 = (__be32 *) __entry->saddr;
78 *p32 = inet->inet_saddr;
80 p32 = (__be32 *) __entry->daddr;
81 *p32 = inet->inet_daddr;
83 TP_STORE_ADDRS(__entry, inet->inet_saddr, inet->inet_daddr,
84 sk->sk_v6_rcv_saddr, sk->sk_v6_daddr);
87 TP_printk("sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c",
88 __entry->sport, __entry->dport, __entry->saddr, __entry->daddr,
89 __entry->saddr_v6, __entry->daddr_v6)
92 DEFINE_EVENT(tcp_event_sk_skb, tcp_retransmit_skb,
94 TP_PROTO(const struct sock *sk, const struct sk_buff *skb),
100 * skb of trace_tcp_send_reset is the skb that caused RST. In case of
101 * active reset, skb should be NULL
103 DEFINE_EVENT(tcp_event_sk_skb, tcp_send_reset,
105 TP_PROTO(const struct sock *sk, const struct sk_buff *skb),
111 * tcp event with arguments sk
113 * Note: this class requires a valid sk pointer.
115 DECLARE_EVENT_CLASS(tcp_event_sk,
117 TP_PROTO(struct sock *sk),
122 __field(const void *, skaddr)
123 __field(__u16, sport)
124 __field(__u16, dport)
125 __array(__u8, saddr, 4)
126 __array(__u8, daddr, 4)
127 __array(__u8, saddr_v6, 16)
128 __array(__u8, daddr_v6, 16)
129 __field(__u64, sock_cookie)
133 struct inet_sock *inet = inet_sk(sk);
136 __entry->skaddr = sk;
138 __entry->sport = ntohs(inet->inet_sport);
139 __entry->dport = ntohs(inet->inet_dport);
141 p32 = (__be32 *) __entry->saddr;
142 *p32 = inet->inet_saddr;
144 p32 = (__be32 *) __entry->daddr;
145 *p32 = inet->inet_daddr;
147 TP_STORE_ADDRS(__entry, inet->inet_saddr, inet->inet_daddr,
148 sk->sk_v6_rcv_saddr, sk->sk_v6_daddr);
150 __entry->sock_cookie = sock_gen_cookie(sk);
153 TP_printk("sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c sock_cookie=%llx",
154 __entry->sport, __entry->dport,
155 __entry->saddr, __entry->daddr,
156 __entry->saddr_v6, __entry->daddr_v6,
157 __entry->sock_cookie)
160 DEFINE_EVENT(tcp_event_sk, tcp_receive_reset,
162 TP_PROTO(struct sock *sk),
167 DEFINE_EVENT(tcp_event_sk, tcp_destroy_sock,
169 TP_PROTO(struct sock *sk),
174 DEFINE_EVENT(tcp_event_sk, tcp_rcv_space_adjust,
176 TP_PROTO(struct sock *sk),
181 TRACE_EVENT(tcp_retransmit_synack,
183 TP_PROTO(const struct sock *sk, const struct request_sock *req),
188 __field(const void *, skaddr)
189 __field(const void *, req)
190 __field(__u16, sport)
191 __field(__u16, dport)
192 __array(__u8, saddr, 4)
193 __array(__u8, daddr, 4)
194 __array(__u8, saddr_v6, 16)
195 __array(__u8, daddr_v6, 16)
199 struct inet_request_sock *ireq = inet_rsk(req);
202 __entry->skaddr = sk;
205 __entry->sport = ireq->ir_num;
206 __entry->dport = ntohs(ireq->ir_rmt_port);
208 p32 = (__be32 *) __entry->saddr;
209 *p32 = ireq->ir_loc_addr;
211 p32 = (__be32 *) __entry->daddr;
212 *p32 = ireq->ir_rmt_addr;
214 TP_STORE_ADDRS(__entry, ireq->ir_loc_addr, ireq->ir_rmt_addr,
215 ireq->ir_v6_loc_addr, ireq->ir_v6_rmt_addr);
218 TP_printk("sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c",
219 __entry->sport, __entry->dport,
220 __entry->saddr, __entry->daddr,
221 __entry->saddr_v6, __entry->daddr_v6)
224 #include <trace/events/net_probe_common.h>
226 TRACE_EVENT(tcp_probe,
228 TP_PROTO(struct sock *sk, struct sk_buff *skb),
233 /* sockaddr_in6 is always bigger than sockaddr_in */
234 __array(__u8, saddr, sizeof(struct sockaddr_in6))
235 __array(__u8, daddr, sizeof(struct sockaddr_in6))
236 __field(__u16, sport)
237 __field(__u16, dport)
239 __field(__u16, data_len)
240 __field(__u32, snd_nxt)
241 __field(__u32, snd_una)
242 __field(__u32, snd_cwnd)
243 __field(__u32, ssthresh)
244 __field(__u32, snd_wnd)
246 __field(__u32, rcv_wnd)
247 __field(__u64, sock_cookie)
251 const struct tcphdr *th = (const struct tcphdr *)skb->data;
252 const struct inet_sock *inet = inet_sk(sk);
253 const struct tcp_sock *tp = tcp_sk(sk);
255 memset(__entry->saddr, 0, sizeof(struct sockaddr_in6));
256 memset(__entry->daddr, 0, sizeof(struct sockaddr_in6));
258 TP_STORE_ADDR_PORTS(__entry, inet, sk);
260 /* For filtering use */
261 __entry->sport = ntohs(inet->inet_sport);
262 __entry->dport = ntohs(inet->inet_dport);
263 __entry->mark = skb->mark;
265 __entry->data_len = skb->len - __tcp_hdrlen(th);
266 __entry->snd_nxt = tp->snd_nxt;
267 __entry->snd_una = tp->snd_una;
268 __entry->snd_cwnd = tp->snd_cwnd;
269 __entry->snd_wnd = tp->snd_wnd;
270 __entry->rcv_wnd = tp->rcv_wnd;
271 __entry->ssthresh = tcp_current_ssthresh(sk);
272 __entry->srtt = tp->srtt_us >> 3;
273 __entry->sock_cookie = sock_gen_cookie(sk);
276 TP_printk("src=%pISpc dest=%pISpc mark=%#x data_len=%d snd_nxt=%#x snd_una=%#x snd_cwnd=%u ssthresh=%u snd_wnd=%u srtt=%u rcv_wnd=%u sock_cookie=%llx",
277 __entry->saddr, __entry->daddr, __entry->mark,
278 __entry->data_len, __entry->snd_nxt, __entry->snd_una,
279 __entry->snd_cwnd, __entry->ssthresh, __entry->snd_wnd,
280 __entry->srtt, __entry->rcv_wnd, __entry->sock_cookie)
283 #endif /* _TRACE_TCP_H */
285 /* This part must be outside protection */
286 #include <trace/define_trace.h>