root/net/dccp/trace.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM dccp
   4 
   5 #if !defined(_TRACE_DCCP_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_DCCP_H
   7 
   8 #include <net/sock.h>
   9 #include "dccp.h"
  10 #include "ccids/ccid3.h"
  11 #include <linux/tracepoint.h>
  12 #include <trace/events/net_probe_common.h>
  13 
  14 TRACE_EVENT(dccp_probe,
  15 
  16         TP_PROTO(struct sock *sk, size_t size),
  17 
  18         TP_ARGS(sk, size),
  19 
  20         TP_STRUCT__entry(
  21                 /* sockaddr_in6 is always bigger than sockaddr_in */
  22                 __array(__u8, saddr, sizeof(struct sockaddr_in6))
  23                 __array(__u8, daddr, sizeof(struct sockaddr_in6))
  24                 __field(__u16, sport)
  25                 __field(__u16, dport)
  26                 __field(__u16, size)
  27                 __field(__u16, tx_s)
  28                 __field(__u32, tx_rtt)
  29                 __field(__u32, tx_p)
  30                 __field(__u32, tx_x_calc)
  31                 __field(__u64, tx_x_recv)
  32                 __field(__u64, tx_x)
  33                 __field(__u32, tx_t_ipi)
  34         ),
  35 
  36         TP_fast_assign(
  37                 const struct inet_sock *inet = inet_sk(sk);
  38                 struct ccid3_hc_tx_sock *hc = NULL;
  39 
  40                 if (ccid_get_current_tx_ccid(dccp_sk(sk)) == DCCPC_CCID3)
  41                         hc = ccid3_hc_tx_sk(sk);
  42 
  43                 memset(__entry->saddr, 0, sizeof(struct sockaddr_in6));
  44                 memset(__entry->daddr, 0, sizeof(struct sockaddr_in6));
  45 
  46                 TP_STORE_ADDR_PORTS(__entry, inet, sk);
  47 
  48                 /* For filtering use */
  49                 __entry->sport = ntohs(inet->inet_sport);
  50                 __entry->dport = ntohs(inet->inet_dport);
  51 
  52                 __entry->size = size;
  53                 if (hc) {
  54                         __entry->tx_s = hc->tx_s;
  55                         __entry->tx_rtt = hc->tx_rtt;
  56                         __entry->tx_p = hc->tx_p;
  57                         __entry->tx_x_calc = hc->tx_x_calc;
  58                         __entry->tx_x_recv = hc->tx_x_recv >> 6;
  59                         __entry->tx_x = hc->tx_x >> 6;
  60                         __entry->tx_t_ipi = hc->tx_t_ipi;
  61                 } else {
  62                         __entry->tx_s = 0;
  63                         memset(&__entry->tx_rtt, 0, (void *)&__entry->tx_t_ipi -
  64                                (void *)&__entry->tx_rtt +
  65                                sizeof(__entry->tx_t_ipi));
  66                 }
  67         ),
  68 
  69         TP_printk("src=%pISpc dest=%pISpc size=%d tx_s=%d tx_rtt=%d "
  70                   "tx_p=%d tx_x_calc=%u tx_x_recv=%llu tx_x=%llu tx_t_ipi=%d",
  71                   __entry->saddr, __entry->daddr, __entry->size,
  72                   __entry->tx_s, __entry->tx_rtt, __entry->tx_p,
  73                   __entry->tx_x_calc, __entry->tx_x_recv, __entry->tx_x,
  74                   __entry->tx_t_ipi)
  75 );
  76 
  77 #endif /* _TRACE_TCP_H */
  78 
  79 /* This part must be outside protection */
  80 #undef TRACE_INCLUDE_PATH
  81 #define TRACE_INCLUDE_PATH .
  82 #undef TRACE_INCLUDE_FILE
  83 #define TRACE_INCLUDE_FILE trace
  84 #include <trace/define_trace.h>