trace/events/fib6.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #undef TRACE_SYSTEM
0003 #define TRACE_SYSTEM fib6
0004
0005 #if !defined(_TRACE_FIB6_H) || defined(TRACE_HEADER_MULTI_READ)
0006 #define _TRACE_FIB6_H
0007
0008 #include <linux/in6.h>
0009 #include <net/flow.h>
0010 #include <net/ip6_fib.h>
0011 #include <linux/tracepoint.h>
0012
0013 TRACE_EVENT(fib6_table_lookup,
0014
0015     TP_PROTO(const struct net *net, const struct fib6_result *res,
0016          struct fib6_table *table, const struct flowi6 *flp),
0017
0018     TP_ARGS(net, res, table, flp),
0019
0020     TP_STRUCT__entry(
0021         __field(    u32,    tb_id       )
0022         __field(    int,    err     )
0023         __field(    int,    oif     )
0024         __field(    int,    iif     )
0025         __field(    __u8,   tos     )
0026         __field(    __u8,   scope       )
0027         __field(    __u8,   flags       )
0028         __array(    __u8,   src,    16  )
0029         __array(    __u8,   dst,    16  )
0030         __field(        u16,    sport       )
0031         __field(        u16,    dport       )
0032         __field(        u8, proto       )
0033         __field(        u8, rt_type     )
0034         __array(        char,   name,   IFNAMSIZ )
0035         __array(        __u8,   gw, 16   )
0036     ),
0037
0038     TP_fast_assign(
0039         struct in6_addr *in6;
0040
0041         __entry->tb_id = table->tb6_id;
0042         __entry->err = ip6_rt_type_to_error(res->fib6_type);
0043         __entry->oif = flp->flowi6_oif;
0044         __entry->iif = flp->flowi6_iif;
0045         __entry->tos = ip6_tclass(flp->flowlabel);
0046         __entry->scope = flp->flowi6_scope;
0047         __entry->flags = flp->flowi6_flags;
0048
0049         in6 = (struct in6_addr *)__entry->src;
0050         *in6 = flp->saddr;
0051
0052         in6 = (struct in6_addr *)__entry->dst;
0053         *in6 = flp->daddr;
0054
0055         __entry->proto = flp->flowi6_proto;
0056         if (__entry->proto == IPPROTO_TCP ||
0057             __entry->proto == IPPROTO_UDP) {
0058             __entry->sport = ntohs(flp->fl6_sport);
0059             __entry->dport = ntohs(flp->fl6_dport);
0060         } else {
0061             __entry->sport = 0;
0062             __entry->dport = 0;
0063         }
0064
0065         if (res->nh && res->nh->fib_nh_dev) {
0066             strlcpy(__entry->name, res->nh->fib_nh_dev->name, IFNAMSIZ);
0067         } else {
0068             strcpy(__entry->name, "-");
0069         }
0070         if (res->f6i == net->ipv6.fib6_null_entry) {
0071             struct in6_addr in6_zero = {};
0072
0073             in6 = (struct in6_addr *)__entry->gw;
0074             *in6 = in6_zero;
0075
0076         } else if (res->nh) {
0077             in6 = (struct in6_addr *)__entry->gw;
0078             *in6 = res->nh->fib_nh_gw6;
0079         }
0080     ),
0081
0082     TP_printk("table %3u oif %d iif %d proto %u %pI6c/%u -> %pI6c/%u tos %d scope %d flags %x ==> dev %s gw %pI6c err %d",
0083           __entry->tb_id, __entry->oif, __entry->iif, __entry->proto,
0084           __entry->src, __entry->sport, __entry->dst, __entry->dport,
0085           __entry->tos, __entry->scope, __entry->flags,
0086           __entry->name, __entry->gw, __entry->err)
0087 );
0088
0089 #endif /* _TRACE_FIB6_H */
0090
0091 /* This part must be outside protection */
0092 #include <trace/define_trace.h>