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TOMOYO Linux Cross Reference
Linux/include/trace/events/sock.h

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  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 
 48 family_names
 49 inet_protocol_names
 50 tcp_state_names
 51 skmem_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 
 70 TRACE_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 
 92 TRACE_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 
137 TRACE_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 

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