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 #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  = READ_ONCE(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 = READ_ONCE(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>