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/flow.h>
 11#include <net/inet_dscp.h>
 12#include <net/ip_fib.h>
 13#include <linux/tracepoint.h>
 14
 15TRACE_EVENT(fib_table_lookup,
 16
 17	TP_PROTO(u32 tb_id, const struct flowi4 *flp,
 18		 const struct fib_nh_common *nhc, int err),
 19
 20	TP_ARGS(tb_id, flp, nhc, err),
 21
 22	TP_STRUCT__entry(
 23		__field(	u32,	tb_id		)
 24		__field(	int,	err		)
 25		__field(	int,	oif		)
 26		__field(	int,	iif		)
 27		__field(	u8,	proto		)
 28		__field(	__u8,	tos		)
 29		__field(	__u8,	scope		)
 30		__field(	__u8,	flags		)
 31		__array(	__u8,	src,	4	)
 32		__array(	__u8,	dst,	4	)
 33		__array(	__u8,	gw4,	4	)
 34		__array(	__u8,	gw6,	16	)
 35		__field(	u16,	sport		)
 36		__field(	u16,	dport		)
 37		__array(char,  name,   IFNAMSIZ )
 38	),
 39
 40	TP_fast_assign(
 41		struct net_device *dev;
 42		struct in6_addr *in6;
 43		__be32 *p32;
 44
 45		__entry->tb_id = tb_id;
 46		__entry->err = err;
 47		__entry->oif = flp->flowi4_oif;
 48		__entry->iif = flp->flowi4_iif;
 49		__entry->tos = inet_dscp_to_dsfield(flp->flowi4_dscp);
 50		__entry->scope = flp->flowi4_scope;
 51		__entry->flags = flp->flowi4_flags;
 52
 53		p32 = (__be32 *) __entry->src;
 54		*p32 = flp->saddr;
 55
 56		p32 = (__be32 *) __entry->dst;
 57		*p32 = flp->daddr;
 58
 59		__entry->proto = flp->flowi4_proto;
 60		if (__entry->proto == IPPROTO_TCP ||
 61		    __entry->proto == IPPROTO_UDP) {
 62			__entry->sport = ntohs(flp->fl4_sport);
 63			__entry->dport = ntohs(flp->fl4_dport);
 64		} else {
 65			__entry->sport = 0;
 66			__entry->dport = 0;
 67		}
 68
 69		dev = nhc ? nhc->nhc_dev : NULL;
 70		strscpy(__entry->name, dev ? dev->name : "-", IFNAMSIZ);
 71
 72		if (nhc) {
 73			if (nhc->nhc_gw_family == AF_INET) {
 74				p32 = (__be32 *) __entry->gw4;
 75				*p32 = nhc->nhc_gw.ipv4;
 76
 77				in6 = (struct in6_addr *)__entry->gw6;
 78				*in6 = in6addr_any;
 79			} else if (nhc->nhc_gw_family == AF_INET6) {
 80				p32 = (__be32 *) __entry->gw4;
 81				*p32 = 0;
 82
 83				in6 = (struct in6_addr *)__entry->gw6;
 84				*in6 = nhc->nhc_gw.ipv6;
 85			}
 86		} else {
 87			p32 = (__be32 *) __entry->gw4;
 88			*p32 = 0;
 89
 90			in6 = (struct in6_addr *)__entry->gw6;
 91			*in6 = in6addr_any;
 92		}
 93	),
 94
 95	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",
 96		  __entry->tb_id, __entry->oif, __entry->iif, __entry->proto,
 97		  __entry->src, __entry->sport, __entry->dst, __entry->dport,
 98		  __entry->tos, __entry->scope, __entry->flags,
 99		  __entry->name, __entry->gw4, __entry->gw6, __entry->err)
100);
101#endif /* _TRACE_FIB_H */
102
103/* This part must be outside protection */
104#include <trace/define_trace.h>