xref: /openbmc/linux/include/trace/events/sock.h (revision 349f631d)
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 
14 #define family_names			\
15 		EM(AF_INET)				\
16 		EMe(AF_INET6)
17 
18 /* The protocol traced by inet_sock_set_state */
19 #define inet_protocol_names		\
20 		EM(IPPROTO_TCP)			\
21 		EM(IPPROTO_DCCP)		\
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 
49 family_names
50 inet_protocol_names
51 tcp_state_names
52 skmem_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 
71 TRACE_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 
93 TRACE_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 		__field(long *, sysctl_mem)
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 		strncpy(__entry->name, prot->name, 32);
113 		__entry->sysctl_mem = prot->sysctl_mem;
114 		__entry->allocated = allocated;
115 		__entry->sysctl_rmem = sk_get_rmem0(sk, prot);
116 		__entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
117 		__entry->sysctl_wmem = sk_get_wmem0(sk, prot);
118 		__entry->wmem_alloc = refcount_read(&sk->sk_wmem_alloc);
119 		__entry->wmem_queued = READ_ONCE(sk->sk_wmem_queued);
120 		__entry->kind = kind;
121 	),
122 
123 	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",
124 		__entry->name,
125 		__entry->sysctl_mem[0],
126 		__entry->sysctl_mem[1],
127 		__entry->sysctl_mem[2],
128 		__entry->allocated,
129 		__entry->sysctl_rmem,
130 		__entry->rmem_alloc,
131 		__entry->sysctl_wmem,
132 		__entry->wmem_alloc,
133 		__entry->wmem_queued,
134 		show_skmem_kind_names(__entry->kind)
135 	)
136 );
137 
138 TRACE_EVENT(inet_sock_set_state,
139 
140 	TP_PROTO(const struct sock *sk, const int oldstate, const int newstate),
141 
142 	TP_ARGS(sk, oldstate, newstate),
143 
144 	TP_STRUCT__entry(
145 		__field(const void *, skaddr)
146 		__field(int, oldstate)
147 		__field(int, newstate)
148 		__field(__u16, sport)
149 		__field(__u16, dport)
150 		__field(__u16, family)
151 		__field(__u16, protocol)
152 		__array(__u8, saddr, 4)
153 		__array(__u8, daddr, 4)
154 		__array(__u8, saddr_v6, 16)
155 		__array(__u8, daddr_v6, 16)
156 	),
157 
158 	TP_fast_assign(
159 		struct inet_sock *inet = inet_sk(sk);
160 		struct in6_addr *pin6;
161 		__be32 *p32;
162 
163 		__entry->skaddr = sk;
164 		__entry->oldstate = oldstate;
165 		__entry->newstate = newstate;
166 
167 		__entry->family = sk->sk_family;
168 		__entry->protocol = sk->sk_protocol;
169 		__entry->sport = ntohs(inet->inet_sport);
170 		__entry->dport = ntohs(inet->inet_dport);
171 
172 		p32 = (__be32 *) __entry->saddr;
173 		*p32 = inet->inet_saddr;
174 
175 		p32 = (__be32 *) __entry->daddr;
176 		*p32 =  inet->inet_daddr;
177 
178 #if IS_ENABLED(CONFIG_IPV6)
179 		if (sk->sk_family == AF_INET6) {
180 			pin6 = (struct in6_addr *)__entry->saddr_v6;
181 			*pin6 = sk->sk_v6_rcv_saddr;
182 			pin6 = (struct in6_addr *)__entry->daddr_v6;
183 			*pin6 = sk->sk_v6_daddr;
184 		} else
185 #endif
186 		{
187 			pin6 = (struct in6_addr *)__entry->saddr_v6;
188 			ipv6_addr_set_v4mapped(inet->inet_saddr, pin6);
189 			pin6 = (struct in6_addr *)__entry->daddr_v6;
190 			ipv6_addr_set_v4mapped(inet->inet_daddr, pin6);
191 		}
192 	),
193 
194 	TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c oldstate=%s newstate=%s",
195 			show_family_name(__entry->family),
196 			show_inet_protocol_name(__entry->protocol),
197 			__entry->sport, __entry->dport,
198 			__entry->saddr, __entry->daddr,
199 			__entry->saddr_v6, __entry->daddr_v6,
200 			show_tcp_state_name(__entry->oldstate),
201 			show_tcp_state_name(__entry->newstate))
202 );
203 
204 TRACE_EVENT(inet_sk_error_report,
205 
206 	TP_PROTO(const struct sock *sk),
207 
208 	TP_ARGS(sk),
209 
210 	TP_STRUCT__entry(
211 		__field(int, error)
212 		__field(__u16, sport)
213 		__field(__u16, dport)
214 		__field(__u16, family)
215 		__field(__u16, protocol)
216 		__array(__u8, saddr, 4)
217 		__array(__u8, daddr, 4)
218 		__array(__u8, saddr_v6, 16)
219 		__array(__u8, daddr_v6, 16)
220 	),
221 
222 	TP_fast_assign(
223 		struct inet_sock *inet = inet_sk(sk);
224 		struct in6_addr *pin6;
225 		__be32 *p32;
226 
227 		__entry->error = sk->sk_err;
228 		__entry->family = sk->sk_family;
229 		__entry->protocol = sk->sk_protocol;
230 		__entry->sport = ntohs(inet->inet_sport);
231 		__entry->dport = ntohs(inet->inet_dport);
232 
233 		p32 = (__be32 *) __entry->saddr;
234 		*p32 = inet->inet_saddr;
235 
236 		p32 = (__be32 *) __entry->daddr;
237 		*p32 =  inet->inet_daddr;
238 
239 #if IS_ENABLED(CONFIG_IPV6)
240 		if (sk->sk_family == AF_INET6) {
241 			pin6 = (struct in6_addr *)__entry->saddr_v6;
242 			*pin6 = sk->sk_v6_rcv_saddr;
243 			pin6 = (struct in6_addr *)__entry->daddr_v6;
244 			*pin6 = sk->sk_v6_daddr;
245 		} else
246 #endif
247 		{
248 			pin6 = (struct in6_addr *)__entry->saddr_v6;
249 			ipv6_addr_set_v4mapped(inet->inet_saddr, pin6);
250 			pin6 = (struct in6_addr *)__entry->daddr_v6;
251 			ipv6_addr_set_v4mapped(inet->inet_daddr, pin6);
252 		}
253 	),
254 
255 	TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c error=%d",
256 		  show_family_name(__entry->family),
257 		  show_inet_protocol_name(__entry->protocol),
258 		  __entry->sport, __entry->dport,
259 		  __entry->saddr, __entry->daddr,
260 		  __entry->saddr_v6, __entry->daddr_v6,
261 		  __entry->error)
262 );
263 
264 #endif /* _TRACE_SOCK_H */
265 
266 /* This part must be outside protection */
267 #include <trace/define_trace.h>
268