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 EMe(IPPROTO_SCTP)
23
24#define tcp_state_names \
25 EM(TCP_ESTABLISHED) \
26 EM(TCP_SYN_SENT) \
27 EM(TCP_SYN_RECV) \
28 EM(TCP_FIN_WAIT1) \
29 EM(TCP_FIN_WAIT2) \
30 EM(TCP_TIME_WAIT) \
31 EM(TCP_CLOSE) \
32 EM(TCP_CLOSE_WAIT) \
33 EM(TCP_LAST_ACK) \
34 EM(TCP_LISTEN) \
35 EM(TCP_CLOSING) \
36 EMe(TCP_NEW_SYN_RECV)
37
38#define skmem_kind_names \
39 EM(SK_MEM_SEND) \
40 EMe(SK_MEM_RECV)
41
42/* enums need to be exported to user space */
43#undef EM
44#undef EMe
45#define EM(a) TRACE_DEFINE_ENUM(a);
46#define EMe(a) TRACE_DEFINE_ENUM(a);
47
48family_names
49inet_protocol_names
50tcp_state_names
51skmem_kind_names
52
53#undef EM
54#undef EMe
55#define EM(a) { a, #a },
56#define EMe(a) { a, #a }
57
58#define show_family_name(val) \
59 __print_symbolic(val, family_names)
60
61#define show_inet_protocol_name(val) \
62 __print_symbolic(val, inet_protocol_names)
63
64#define show_tcp_state_name(val) \
65 __print_symbolic(val, tcp_state_names)
66
67#define show_skmem_kind_names(val) \
68 __print_symbolic(val, skmem_kind_names)
69
70TRACE_EVENT(sock_rcvqueue_full,
71
72 TP_PROTO(struct sock *sk, struct sk_buff *skb),
73
74 TP_ARGS(sk, skb),
75
76 TP_STRUCT__entry(
77 __field(int, rmem_alloc)
78 __field(unsigned int, truesize)
79 __field(int, sk_rcvbuf)
80 ),
81
82 TP_fast_assign(
83 __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
84 __entry->truesize = skb->truesize;
85 __entry->sk_rcvbuf = sk->sk_rcvbuf;
86 ),
87
88 TP_printk("rmem_alloc=%d truesize=%u sk_rcvbuf=%d",
89 __entry->rmem_alloc, __entry->truesize, __entry->sk_rcvbuf)
90);
91
92TRACE_EVENT(sock_exceed_buf_limit,
93
94 TP_PROTO(struct sock *sk, struct proto *prot, long allocated, int kind),
95
96 TP_ARGS(sk, prot, allocated, kind),
97
98 TP_STRUCT__entry(
99 __array(char, name, 32)
100 __field(long *, sysctl_mem)
101 __field(long, allocated)
102 __field(int, sysctl_rmem)
103 __field(int, rmem_alloc)
104 __field(int, sysctl_wmem)
105 __field(int, wmem_alloc)
106 __field(int, wmem_queued)
107 __field(int, kind)
108 ),
109
110 TP_fast_assign(
111 strncpy(__entry->name, prot->name, 32);
112 __entry->sysctl_mem = prot->sysctl_mem;
113 __entry->allocated = allocated;
114 __entry->sysctl_rmem = sk_get_rmem0(sk, prot);
115 __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
116 __entry->sysctl_wmem = sk_get_wmem0(sk, prot);
117 __entry->wmem_alloc = refcount_read(&sk->sk_wmem_alloc);
118 __entry->wmem_queued = sk->sk_wmem_queued;
119 __entry->kind = kind;
120 ),
121
122 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",
123 __entry->name,
124 __entry->sysctl_mem[0],
125 __entry->sysctl_mem[1],
126 __entry->sysctl_mem[2],
127 __entry->allocated,
128 __entry->sysctl_rmem,
129 __entry->rmem_alloc,
130 __entry->sysctl_wmem,
131 __entry->wmem_alloc,
132 __entry->wmem_queued,
133 show_skmem_kind_names(__entry->kind)
134 )
135);
136
137TRACE_EVENT(inet_sock_set_state,
138
139 TP_PROTO(const struct sock *sk, const int oldstate, const int newstate),
140
141 TP_ARGS(sk, oldstate, newstate),
142
143 TP_STRUCT__entry(
144 __field(const void *, skaddr)
145 __field(int, oldstate)
146 __field(int, newstate)
147 __field(__u16, sport)
148 __field(__u16, dport)
149 __field(__u16, family)
150 __field(__u8, protocol)
151 __array(__u8, saddr, 4)
152 __array(__u8, daddr, 4)
153 __array(__u8, saddr_v6, 16)
154 __array(__u8, daddr_v6, 16)
155 ),
156
157 TP_fast_assign(
158 struct inet_sock *inet = inet_sk(sk);
159 struct in6_addr *pin6;
160 __be32 *p32;
161
162 __entry->skaddr = sk;
163 __entry->oldstate = oldstate;
164 __entry->newstate = newstate;
165
166 __entry->family = sk->sk_family;
167 __entry->protocol = sk->sk_protocol;
168 __entry->sport = ntohs(inet->inet_sport);
169 __entry->dport = ntohs(inet->inet_dport);
170
171 p32 = (__be32 *) __entry->saddr;
172 *p32 = inet->inet_saddr;
173
174 p32 = (__be32 *) __entry->daddr;
175 *p32 = inet->inet_daddr;
176
177#if IS_ENABLED(CONFIG_IPV6)
178 if (sk->sk_family == AF_INET6) {
179 pin6 = (struct in6_addr *)__entry->saddr_v6;
180 *pin6 = sk->sk_v6_rcv_saddr;
181 pin6 = (struct in6_addr *)__entry->daddr_v6;
182 *pin6 = sk->sk_v6_daddr;
183 } else
184#endif
185 {
186 pin6 = (struct in6_addr *)__entry->saddr_v6;
187 ipv6_addr_set_v4mapped(inet->inet_saddr, pin6);
188 pin6 = (struct in6_addr *)__entry->daddr_v6;
189 ipv6_addr_set_v4mapped(inet->inet_daddr, pin6);
190 }
191 ),
192
193 TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c oldstate=%s newstate=%s",
194 show_family_name(__entry->family),
195 show_inet_protocol_name(__entry->protocol),
196 __entry->sport, __entry->dport,
197 __entry->saddr, __entry->daddr,
198 __entry->saddr_v6, __entry->daddr_v6,
199 show_tcp_state_name(__entry->oldstate),
200 show_tcp_state_name(__entry->newstate))
201);
202
203#endif /* _TRACE_SOCK_H */
204
205/* This part must be outside protection */
206#include <trace/define_trace.h>
207