include/trace/events/fib.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM fib
   4
   5 #if !defined(_TRACE_FIB_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_FIB_H
   7
   8 #include <linux/skbuff.h>
   9 #include <linux/netdevice.h>
  10 #include <net/ip_fib.h>
  11 #include <linux/tracepoint.h>
  12
  13 TRACE_EVENT(fib_table_lookup,
  14
  15         TP_PROTO(u32 tb_id, const struct flowi4 *flp,
  16                  const struct fib_nh *nh, int err),
  17
  18         TP_ARGS(tb_id, flp, nh, err),
  19
  20         TP_STRUCT__entry(
  21                 __field(        u32,    tb_id           )
  22                 __field(        int,    err             )
  23                 __field(        int,    oif             )
  24                 __field(        int,    iif             )
  25                 __field(        u8,     proto           )
  26                 __field(        __u8,   tos             )
  27                 __field(        __u8,   scope           )
  28                 __field(        __u8,   flags           )
  29                 __array(        __u8,   src,    4       )
  30                 __array(        __u8,   dst,    4       )
  31                 __array(        __u8,   gw,     4       )
  32                 __array(        __u8,   saddr,  4       )
  33                 __field(        u16,    sport           )
  34                 __field(        u16,    dport           )
  35                 __dynamic_array(char,  name,   IFNAMSIZ )
  36         ),
  37
  38         TP_fast_assign(
  39                 __be32 *p32;
  40
  41                 __entry->tb_id = tb_id;
  42                 __entry->err = err;
  43                 __entry->oif = flp->flowi4_oif;
  44                 __entry->iif = flp->flowi4_iif;
  45                 __entry->tos = flp->flowi4_tos;
  46                 __entry->scope = flp->flowi4_scope;
  47                 __entry->flags = flp->flowi4_flags;
  48
  49                 p32 = (__be32 *) __entry->src;
  50                 *p32 = flp->saddr;
  51
  52                 p32 = (__be32 *) __entry->dst;
  53                 *p32 = flp->daddr;
  54
  55                 __entry->proto = flp->flowi4_proto;
  56                 if (__entry->proto == IPPROTO_TCP ||
  57                     __entry->proto == IPPROTO_UDP) {
  58                         __entry->sport = ntohs(flp->fl4_sport);
  59                         __entry->dport = ntohs(flp->fl4_dport);
  60                 } else {
  61                         __entry->sport = 0;
  62                         __entry->dport = 0;
  63                 }
  64
  65                 if (nh) {
  66                         p32 = (__be32 *) __entry->saddr;
  67                         *p32 = nh->nh_saddr;
  68
  69                         p32 = (__be32 *) __entry->gw;
  70                         *p32 = nh->nh_gw;
  71
  72                         __assign_str(name, nh->nh_dev ? nh->nh_dev->name : "-");
  73                 } else {
  74                         p32 = (__be32 *) __entry->saddr;
  75                         *p32 = 0;
  76
  77                         p32 = (__be32 *) __entry->gw;
  78                         *p32 = 0;
  79
  80                         __assign_str(name, "-");
  81                 }
  82         ),
  83
  84         TP_printk("table %u oif %d iif %d proto %u %pI4/%u -> %pI4/%u tos %d scope %d flags %x ==> dev %s gw %pI4 src %pI4 err %d",
  85                   __entry->tb_id, __entry->oif, __entry->iif, __entry->proto,
  86                   __entry->src, __entry->sport, __entry->dst, __entry->dport,
  87                   __entry->tos, __entry->scope, __entry->flags,
  88                   __get_str(name), __entry->gw, __entry->saddr, __entry->err)
  89 );
  90 #endif /* _TRACE_FIB_H */
  91
  92 /* This part must be outside protection */
  93 #include <trace/define_trace.h>