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>