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