LXR linux/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
  13TRACE_EVENT(fib_table_lookup,
  14
  15        TP_PROTO(u32 tb_id, const struct flowi4 *flp,
  16                 const struct fib_nh_common *nhc, int err),
  17
  18        TP_ARGS(tb_id, flp, nhc, 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,   gw4,    4       )
  32                __array(        __u8,   gw6,    16      )
  33                __field(        u16,    sport           )
  34                __field(        u16,    dport           )
  35                __dynamic_array(char,  name,   IFNAMSIZ )
  36        ),
  37
  38        TP_fast_assign(
  39                struct in6_addr in6_zero = {};
  40                struct net_device *dev;
  41                struct in6_addr *in6;
  42                __be32 *p32;
  43
  44                __entry->tb_id = tb_id;
  45                __entry->err = err;
  46                __entry->oif = flp->flowi4_oif;
  47                __entry->iif = flp->flowi4_iif;
  48                __entry->tos = flp->flowi4_tos;
  49                __entry->scope = flp->flowi4_scope;
  50                __entry->flags = flp->flowi4_flags;
  51
  52                p32 = (__be32 *) __entry->src;
  53                *p32 = flp->saddr;
  54
  55                p32 = (__be32 *) __entry->dst;
  56                *p32 = flp->daddr;
  57
  58                __entry->proto = flp->flowi4_proto;
  59                if (__entry->proto == IPPROTO_TCP ||
  60                    __entry->proto == IPPROTO_UDP) {
  61                        __entry->sport = ntohs(flp->fl4_sport);
  62                        __entry->dport = ntohs(flp->fl4_dport);
  63                } else {
  64                        __entry->sport = 0;
  65                        __entry->dport = 0;
  66                }
  67
  68                dev = nhc ? nhc->nhc_dev : NULL;
  69                __assign_str(name, dev ? dev->name : "-");
  70
  71                if (nhc) {
  72                        if (nhc->nhc_gw_family == AF_INET) {
  73                                p32 = (__be32 *) __entry->gw4;
  74                                *p32 = nhc->nhc_gw.ipv4;
  75
  76                                in6 = (struct in6_addr *)__entry->gw6;
  77                                *in6 = in6_zero;
  78                        } else if (nhc->nhc_gw_family == AF_INET6) {
  79                                p32 = (__be32 *) __entry->gw4;
  80                                *p32 = 0;
  81
  82                                in6 = (struct in6_addr *)__entry->gw6;
  83                                *in6 = nhc->nhc_gw.ipv6;
  84                        }
  85                } else {
  86                        p32 = (__be32 *) __entry->gw4;
  87                        *p32 = 0;
  88
  89                        in6 = (struct in6_addr *)__entry->gw6;
  90                        *in6 = in6_zero;
  91                }
  92        ),
  93
  94        TP_printk("table %u oif %d iif %d proto %u %pI4/%u -> %pI4/%u tos %d scope %d flags %x ==> dev %s gw %pI4/%pI6c err %d",
  95                  __entry->tb_id, __entry->oif, __entry->iif, __entry->proto,
  96                  __entry->src, __entry->sport, __entry->dst, __entry->dport,
  97                  __entry->tos, __entry->scope, __entry->flags,
  98                  __get_str(name), __entry->gw4, __entry->gw6, __entry->err)
  99);
 100#endif /* _TRACE_FIB_H */
 101
 102/* This part must be outside protection */
 103#include <trace/define_trace.h>
 104