tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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/* enums need to be exported to user space */
39#undef EM
40#undef EMe
41#define EM(a) TRACE_DEFINE_ENUM(a);
42#define EMe(a) TRACE_DEFINE_ENUM(a);
43
44family_names
45inet_protocol_names
46tcp_state_names
47
48#undef EM
49#undef EMe
50#define EM(a) { a, #a },
51#define EMe(a) { a, #a }
52
53#define show_family_name(val) \
54 __print_symbolic(val, family_names)
55
56#define show_inet_protocol_name(val) \
57 __print_symbolic(val, inet_protocol_names)
58
59#define show_tcp_state_name(val) \
60 __print_symbolic(val, tcp_state_names)
61
62TRACE_EVENT(sock_rcvqueue_full,
63
64 TP_PROTO(struct sock *sk, struct sk_buff *skb),
65
66 TP_ARGS(sk, skb),
67
68 TP_STRUCT__entry(
69 __field(int, rmem_alloc)
70 __field(unsigned int, truesize)
71 __field(int, sk_rcvbuf)
72 ),
73
74 TP_fast_assign(
75 __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
76 __entry->truesize = skb->truesize;
77 __entry->sk_rcvbuf = sk->sk_rcvbuf;
78 ),
79
80 TP_printk("rmem_alloc=%d truesize=%u sk_rcvbuf=%d",
81 __entry->rmem_alloc, __entry->truesize, __entry->sk_rcvbuf)
82);
83
84TRACE_EVENT(sock_exceed_buf_limit,
85
86 TP_PROTO(struct sock *sk, struct proto *prot, long allocated),
87
88 TP_ARGS(sk, prot, allocated),
89
90 TP_STRUCT__entry(
91 __array(char, name, 32)
92 __field(long *, sysctl_mem)
93 __field(long, allocated)
94 __field(int, sysctl_rmem)
95 __field(int, rmem_alloc)
96 ),
97
98 TP_fast_assign(
99 strncpy(__entry->name, prot->name, 32);
100 __entry->sysctl_mem = prot->sysctl_mem;
101 __entry->allocated = allocated;
102 __entry->sysctl_rmem = sk_get_rmem0(sk, prot);
103 __entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
104 ),
105
106 TP_printk("proto:%s sysctl_mem=%ld,%ld,%ld allocated=%ld "
107 "sysctl_rmem=%d rmem_alloc=%d",
108 __entry->name,
109 __entry->sysctl_mem[0],
110 __entry->sysctl_mem[1],
111 __entry->sysctl_mem[2],
112 __entry->allocated,
113 __entry->sysctl_rmem,
114 __entry->rmem_alloc)
115);
116
117TRACE_EVENT(inet_sock_set_state,
118
119 TP_PROTO(const struct sock *sk, const int oldstate, const int newstate),
120
121 TP_ARGS(sk, oldstate, newstate),
122
123 TP_STRUCT__entry(
124 __field(const void *, skaddr)
125 __field(int, oldstate)
126 __field(int, newstate)
127 __field(__u16, sport)
128 __field(__u16, dport)
129 __field(__u16, family)
130 __field(__u8, protocol)
131 __array(__u8, saddr, 4)
132 __array(__u8, daddr, 4)
133 __array(__u8, saddr_v6, 16)
134 __array(__u8, daddr_v6, 16)
135 ),
136
137 TP_fast_assign(
138 struct inet_sock *inet = inet_sk(sk);
139 struct in6_addr *pin6;
140 __be32 *p32;
141
142 __entry->skaddr = sk;
143 __entry->oldstate = oldstate;
144 __entry->newstate = newstate;
145
146 __entry->family = sk->sk_family;
147 __entry->protocol = sk->sk_protocol;
148 __entry->sport = ntohs(inet->inet_sport);
149 __entry->dport = ntohs(inet->inet_dport);
150
151 p32 = (__be32 *) __entry->saddr;
152 *p32 = inet->inet_saddr;
153
154 p32 = (__be32 *) __entry->daddr;
155 *p32 = inet->inet_daddr;
156
157#if IS_ENABLED(CONFIG_IPV6)
158 if (sk->sk_family == AF_INET6) {
159 pin6 = (struct in6_addr *)__entry->saddr_v6;
160 *pin6 = sk->sk_v6_rcv_saddr;
161 pin6 = (struct in6_addr *)__entry->daddr_v6;
162 *pin6 = sk->sk_v6_daddr;
163 } else
164#endif
165 {
166 pin6 = (struct in6_addr *)__entry->saddr_v6;
167 ipv6_addr_set_v4mapped(inet->inet_saddr, pin6);
168 pin6 = (struct in6_addr *)__entry->daddr_v6;
169 ipv6_addr_set_v4mapped(inet->inet_daddr, pin6);
170 }
171 ),
172
173 TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c oldstate=%s newstate=%s",
174 show_family_name(__entry->family),
175 show_inet_protocol_name(__entry->protocol),
176 __entry->sport, __entry->dport,
177 __entry->saddr, __entry->daddr,
178 __entry->saddr_v6, __entry->daddr_v6,
179 show_tcp_state_name(__entry->oldstate),
180 show_tcp_state_name(__entry->newstate))
181);
182
183#endif /* _TRACE_SOCK_H */
184
185/* This part must be outside protection */
186#include <trace/define_trace.h>