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> 187