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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/trace/events/fib.h
26282 views
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/* SPDX-License-Identifier: GPL-2.0 */

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#undef TRACE_SYSTEM

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#define TRACE_SYSTEM fib

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#if !defined(_TRACE_FIB_H) || defined(TRACE_HEADER_MULTI_READ)

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#define _TRACE_FIB_H

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#include <linux/skbuff.h>

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#include <linux/netdevice.h>

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#include <net/ip_fib.h>

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#include <linux/tracepoint.h>

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TRACE_EVENT(fib_table_lookup,

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	TP_PROTO(u32 tb_id, const struct flowi4 *flp,

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		 const struct fib_nh_common *nhc, int err),

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	TP_ARGS(tb_id, flp, nhc, err),

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	TP_STRUCT__entry(

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		__field(	u32,	tb_id		)

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		__field(	int,	err		)

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		__field(	int,	oif		)

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		__field(	int,	iif		)

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		__field(	u8,	proto		)

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		__field(	__u8,	tos		)

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		__field(	__u8,	scope		)

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		__field(	__u8,	flags		)

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		__array(	__u8,	src,	4	)

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		__array(	__u8,	dst,	4	)

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		__array(	__u8,	gw4,	4	)

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		__array(	__u8,	gw6,	16	)

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		__field(	u16,	sport		)

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		__field(	u16,	dport		)

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		__array(char,  name,   IFNAMSIZ )

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	),

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	TP_fast_assign(

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		struct net_device *dev;

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		struct in6_addr *in6;

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		__be32 *p32;

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		__entry->tb_id = tb_id;

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		__entry->err = err;

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		__entry->oif = flp->flowi4_oif;

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		__entry->iif = flp->flowi4_iif;

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		__entry->tos = flp->flowi4_tos;

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		__entry->scope = flp->flowi4_scope;

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		__entry->flags = flp->flowi4_flags;

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		p32 = (__be32 *) __entry->src;

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		*p32 = flp->saddr;

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		p32 = (__be32 *) __entry->dst;

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		*p32 = flp->daddr;

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		__entry->proto = flp->flowi4_proto;

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		if (__entry->proto == IPPROTO_TCP ||

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		    __entry->proto == IPPROTO_UDP) {

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			__entry->sport = ntohs(flp->fl4_sport);

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			__entry->dport = ntohs(flp->fl4_dport);

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		} else {

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			__entry->sport = 0;

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			__entry->dport = 0;

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		}

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		dev = nhc ? nhc->nhc_dev : NULL;

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		strscpy(__entry->name, dev ? dev->name : "-", IFNAMSIZ);

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		if (nhc) {

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			if (nhc->nhc_gw_family == AF_INET) {

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				p32 = (__be32 *) __entry->gw4;

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				*p32 = nhc->nhc_gw.ipv4;

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				in6 = (struct in6_addr *)__entry->gw6;

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				*in6 = in6addr_any;

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			} else if (nhc->nhc_gw_family == AF_INET6) {

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				p32 = (__be32 *) __entry->gw4;

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				*p32 = 0;

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				in6 = (struct in6_addr *)__entry->gw6;

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				*in6 = nhc->nhc_gw.ipv6;

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			}

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		} else {

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			p32 = (__be32 *) __entry->gw4;

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			*p32 = 0;

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			in6 = (struct in6_addr *)__entry->gw6;

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			*in6 = in6addr_any;

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		}

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	),

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	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",

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		  __entry->tb_id, __entry->oif, __entry->iif, __entry->proto,

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		  __entry->src, __entry->sport, __entry->dst, __entry->dport,

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		  __entry->tos, __entry->scope, __entry->flags,

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		  __entry->name, __entry->gw4, __entry->gw6, __entry->err)

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);

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#endif /* _TRACE_FIB_H */

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/* This part must be outside protection */

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#include <trace/define_trace.h>

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