sock.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#undef TRACE_SYSTEM
  3#define TRACE_SYSTEM sock
  4
  5#if !defined(_TRACE_SOCK_H) || defined(TRACE_HEADER_MULTI_READ)
  6#define _TRACE_SOCK_H
  7
  8#include <net/sock.h>
  9#include <net/ipv6.h>
 10#include <linux/tracepoint.h>
 11#include <linux/ipv6.h>
 12#include <linux/tcp.h>
 13#include <trace/events/net_probe_common.h>
 14
 15#define family_names			\
 16		EM(AF_INET)				\
 17		EMe(AF_INET6)
 18
 19/* The protocol traced by inet_sock_set_state */
 20#define inet_protocol_names		\
 21		EM(IPPROTO_TCP)			\
 22		EM(IPPROTO_SCTP)		\
 23		EMe(IPPROTO_MPTCP)
 24
 25#define tcp_state_names			\
 26		EM(TCP_ESTABLISHED)		\
 27		EM(TCP_SYN_SENT)		\
 28		EM(TCP_SYN_RECV)		\
 29		EM(TCP_FIN_WAIT1)		\
 30		EM(TCP_FIN_WAIT2)		\
 31		EM(TCP_TIME_WAIT)		\
 32		EM(TCP_CLOSE)			\
 33		EM(TCP_CLOSE_WAIT)		\
 34		EM(TCP_LAST_ACK)		\
 35		EM(TCP_LISTEN)			\
 36		EM(TCP_CLOSING)			\
 37		EMe(TCP_NEW_SYN_RECV)
 38
 39#define skmem_kind_names			\
 40		EM(SK_MEM_SEND)			\
 41		EMe(SK_MEM_RECV)
 42
 43/* enums need to be exported to user space */
 44#undef EM
 45#undef EMe
 46#define EM(a)       TRACE_DEFINE_ENUM(a);
 47#define EMe(a)      TRACE_DEFINE_ENUM(a);
 48
 49family_names
 50inet_protocol_names
 51tcp_state_names
 52skmem_kind_names
 53
 54#undef EM
 55#undef EMe
 56#define EM(a)       { a, #a },
 57#define EMe(a)      { a, #a }
 58
 59#define show_family_name(val)			\
 60	__print_symbolic(val, family_names)
 61
 62#define show_inet_protocol_name(val)    \
 63	__print_symbolic(val, inet_protocol_names)
 64
 65#define show_tcp_state_name(val)        \
 66	__print_symbolic(val, tcp_state_names)
 67
 68#define show_skmem_kind_names(val)	\
 69	__print_symbolic(val, skmem_kind_names)
 70
 71TRACE_EVENT(sock_rcvqueue_full,
 72
 73	TP_PROTO(struct sock *sk, struct sk_buff *skb),
 74
 75	TP_ARGS(sk, skb),
 76
 77	TP_STRUCT__entry(
 78		__field(int, rmem_alloc)
 79		__field(unsigned int, truesize)
 80		__field(int, sk_rcvbuf)
 81	),
 82
 83	TP_fast_assign(
 84		__entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
 85		__entry->truesize   = skb->truesize;
 86		__entry->sk_rcvbuf  = READ_ONCE(sk->sk_rcvbuf);
 87	),
 88
 89	TP_printk("rmem_alloc=%d truesize=%u sk_rcvbuf=%d",
 90		__entry->rmem_alloc, __entry->truesize, __entry->sk_rcvbuf)
 91);
 92
 93TRACE_EVENT(sock_exceed_buf_limit,
 94
 95	TP_PROTO(struct sock *sk, struct proto *prot, long allocated, int kind),
 96
 97	TP_ARGS(sk, prot, allocated, kind),
 98
 99	TP_STRUCT__entry(
100		__array(char, name, 32)
101		__array(long, sysctl_mem, 3)
102		__field(long, allocated)
103		__field(int, sysctl_rmem)
104		__field(int, rmem_alloc)
105		__field(int, sysctl_wmem)
106		__field(int, wmem_alloc)
107		__field(int, wmem_queued)
108		__field(int, kind)
109	),
110
111	TP_fast_assign(
112		strscpy(__entry->name, prot->name, 32);
113		__entry->sysctl_mem[0] = READ_ONCE(prot->sysctl_mem[0]);
114		__entry->sysctl_mem[1] = READ_ONCE(prot->sysctl_mem[1]);
115		__entry->sysctl_mem[2] = READ_ONCE(prot->sysctl_mem[2]);
116		__entry->allocated = allocated;
117		__entry->sysctl_rmem = sk_get_rmem0(sk, prot);
118		__entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
119		__entry->sysctl_wmem = sk_get_wmem0(sk, prot);
120		__entry->wmem_alloc = refcount_read(&sk->sk_wmem_alloc);
121		__entry->wmem_queued = READ_ONCE(sk->sk_wmem_queued);
122		__entry->kind = kind;
123	),
124
125	TP_printk("proto:%s sysctl_mem=%ld,%ld,%ld allocated=%ld sysctl_rmem=%d rmem_alloc=%d sysctl_wmem=%d wmem_alloc=%d wmem_queued=%d kind=%s",
126		__entry->name,
127		__entry->sysctl_mem[0],
128		__entry->sysctl_mem[1],
129		__entry->sysctl_mem[2],
130		__entry->allocated,
131		__entry->sysctl_rmem,
132		__entry->rmem_alloc,
133		__entry->sysctl_wmem,
134		__entry->wmem_alloc,
135		__entry->wmem_queued,
136		show_skmem_kind_names(__entry->kind)
137	)
138);
139
140TRACE_EVENT(inet_sock_set_state,
141
142	TP_PROTO(const struct sock *sk, const int oldstate, const int newstate),
143
144	TP_ARGS(sk, oldstate, newstate),
145
146	TP_STRUCT__entry(
147		__field(const void *, skaddr)
148		__field(int, oldstate)
149		__field(int, newstate)
150		__field(__u16, sport)
151		__field(__u16, dport)
152		__field(__u16, family)
153		__field(__u16, protocol)
154		__array(__u8, saddr, 4)
155		__array(__u8, daddr, 4)
156		__array(__u8, saddr_v6, 16)
157		__array(__u8, daddr_v6, 16)
158	),
159
160	TP_fast_assign(
161		const struct inet_sock *inet = inet_sk(sk);
162		__be32 *p32;
163
164		__entry->skaddr = sk;
165		__entry->oldstate = oldstate;
166		__entry->newstate = newstate;
167
168		__entry->family = sk->sk_family;
169		__entry->protocol = sk->sk_protocol;
170		__entry->sport = ntohs(inet->inet_sport);
171		__entry->dport = ntohs(inet->inet_dport);
172
173		p32 = (__be32 *) __entry->saddr;
174		*p32 = inet->inet_saddr;
175
176		p32 = (__be32 *) __entry->daddr;
177		*p32 =  inet->inet_daddr;
178
179		TP_STORE_ADDRS(__entry, inet->inet_saddr, inet->inet_daddr,
180			       sk->sk_v6_rcv_saddr, sk->sk_v6_daddr);
181	),
182
183	TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c oldstate=%s newstate=%s",
184			show_family_name(__entry->family),
185			show_inet_protocol_name(__entry->protocol),
186			__entry->sport, __entry->dport,
187			__entry->saddr, __entry->daddr,
188			__entry->saddr_v6, __entry->daddr_v6,
189			show_tcp_state_name(__entry->oldstate),
190			show_tcp_state_name(__entry->newstate))
191);
192
193TRACE_EVENT(inet_sk_error_report,
194
195	TP_PROTO(const struct sock *sk),
196
197	TP_ARGS(sk),
198
199	TP_STRUCT__entry(
200		__field(int, error)
201		__field(__u16, sport)
202		__field(__u16, dport)
203		__field(__u16, family)
204		__field(__u16, protocol)
205		__array(__u8, saddr, 4)
206		__array(__u8, daddr, 4)
207		__array(__u8, saddr_v6, 16)
208		__array(__u8, daddr_v6, 16)
209	),
210
211	TP_fast_assign(
212		const struct inet_sock *inet = inet_sk(sk);
213		__be32 *p32;
214
215		__entry->error = sk->sk_err;
216		__entry->family = sk->sk_family;
217		__entry->protocol = sk->sk_protocol;
218		__entry->sport = ntohs(inet->inet_sport);
219		__entry->dport = ntohs(inet->inet_dport);
220
221		p32 = (__be32 *) __entry->saddr;
222		*p32 = inet->inet_saddr;
223
224		p32 = (__be32 *) __entry->daddr;
225		*p32 =  inet->inet_daddr;
226
227		TP_STORE_ADDRS(__entry, inet->inet_saddr, inet->inet_daddr,
228			       sk->sk_v6_rcv_saddr, sk->sk_v6_daddr);
229	),
230
231	TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c error=%d",
232		  show_family_name(__entry->family),
233		  show_inet_protocol_name(__entry->protocol),
234		  __entry->sport, __entry->dport,
235		  __entry->saddr, __entry->daddr,
236		  __entry->saddr_v6, __entry->daddr_v6,
237		  __entry->error)
238);
239
240TRACE_EVENT(sk_data_ready,
241
242	TP_PROTO(const struct sock *sk),
243
244	TP_ARGS(sk),
245
246	TP_STRUCT__entry(
247		__field(const void *, skaddr)
248		__field(__u16, family)
249		__field(__u16, protocol)
250		__field(unsigned long, ip)
251	),
252
253	TP_fast_assign(
254		__entry->skaddr = sk;
255		__entry->family = sk->sk_family;
256		__entry->protocol = sk->sk_protocol;
257		__entry->ip = _RET_IP_;
258	),
259
260	TP_printk("family=%u protocol=%u func=%ps",
261		  __entry->family, __entry->protocol, (void *)__entry->ip)
262);
263
264/*
265 * sock send/recv msg length
266 */
267DECLARE_EVENT_CLASS(sock_msg_length,
268
269	TP_PROTO(struct sock *sk, int ret, int flags),
270
271	TP_ARGS(sk, ret, flags),
272
273	TP_STRUCT__entry(
274		__field(void *, sk)
275		__field(__u16, family)
276		__field(__u16, protocol)
277		__field(int, ret)
278		__field(int, flags)
279	),
280
281	TP_fast_assign(
282		__entry->sk = sk;
283		__entry->family = sk->sk_family;
284		__entry->protocol = sk->sk_protocol;
285		__entry->ret = ret;
286		__entry->flags = flags;
287	),
288
289	TP_printk("sk address = %p, family = %s protocol = %s, length = %d, error = %d, flags = 0x%x",
290		  __entry->sk, show_family_name(__entry->family),
291		  show_inet_protocol_name(__entry->protocol),
292		  !(__entry->flags & MSG_PEEK) ?
293		  (__entry->ret > 0 ? __entry->ret : 0) : 0,
294		  __entry->ret < 0 ? __entry->ret : 0,
295		  __entry->flags)
296);
297
298DEFINE_EVENT(sock_msg_length, sock_send_length,
299	TP_PROTO(struct sock *sk, int ret, int flags),
300
301	TP_ARGS(sk, ret, flags)
302);
303
304DEFINE_EVENT(sock_msg_length, sock_recv_length,
305	TP_PROTO(struct sock *sk, int ret, int flags),
306
307	TP_ARGS(sk, ret, flags)
308);
309#endif /* _TRACE_SOCK_H */
310
311/* This part must be outside protection */
312#include <trace/define_trace.h>