include/trace/events/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
  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
  44 family_names
  45 inet_protocol_names
  46 tcp_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
  62 TRACE_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
  84 TRACE_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
 117 TRACE_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>