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authorDavid Ahern <dsahern@gmail.com>2019-04-02 14:11:54 -0700
committerDavid S. Miller <davem@davemloft.net>2019-04-03 21:50:20 -0700
commit0af7e7c128eb33f2dc16ed088ced00675785d628 (patch)
tree5ece953a4ef809870dd5ec83abcbe4e1896b6ea6 /include/trace
parent4950c2ba49cc6f2b38dbedcfa0ff67acf761419a (diff)
ipv4: Update fib_table_lookup tracepoint to take common nexthop
Update fib_table_lookup tracepoint to take a fib_nh_common struct and dump the v6 gateway address if the nexthop uses it. Over the years saddr has not proven useful and the output of the tracepoint produces very long lines. Since saddr is not part of fib_nh_common, drop it. If it needs to be added later, fib_nh which contains saddr can be obtained from a fib_nh_common via container_of. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/fib.h45
1 files changed, 26 insertions, 19 deletions
diff --git a/include/trace/events/fib.h b/include/trace/events/fib.h
index 61ea7a24c8e5..7f83b6eafc5c 100644
--- a/include/trace/events/fib.h
+++ b/include/trace/events/fib.h
@@ -13,9 +13,9 @@
TRACE_EVENT(fib_table_lookup,
TP_PROTO(u32 tb_id, const struct flowi4 *flp,
- const struct fib_nh *nh, int err),
+ const struct fib_nh_common *nhc, int err),
- TP_ARGS(tb_id, flp, nh, err),
+ TP_ARGS(tb_id, flp, nhc, err),
TP_STRUCT__entry(
__field( u32, tb_id )
@@ -28,14 +28,17 @@ TRACE_EVENT(fib_table_lookup,
__field( __u8, flags )
__array( __u8, src, 4 )
__array( __u8, dst, 4 )
- __array( __u8, gw, 4 )
- __array( __u8, saddr, 4 )
+ __array( __u8, gw4, 4 )
+ __array( __u8, gw6, 16 )
__field( u16, sport )
__field( u16, dport )
__dynamic_array(char, name, IFNAMSIZ )
),
TP_fast_assign(
+ struct in6_addr in6_zero = {};
+ struct net_device *dev;
+ struct in6_addr *in6;
__be32 *p32;
__entry->tb_id = tb_id;
@@ -62,33 +65,37 @@ TRACE_EVENT(fib_table_lookup,
__entry->dport = 0;
}
- if (nh) {
- struct net_device *dev;
+ dev = nhc ? nhc->nhc_dev : NULL;
+ __assign_str(name, dev ? dev->name : "-");
- p32 = (__be32 *) __entry->saddr;
- *p32 = nh->nh_saddr;
+ if (nhc) {
+ if (nhc->nhc_family == AF_INET) {
+ p32 = (__be32 *) __entry->gw4;
+ *p32 = nhc->nhc_gw.ipv4;
- p32 = (__be32 *) __entry->gw;
- *p32 = nh->fib_nh_gw4;
+ in6 = (struct in6_addr *)__entry->gw6;
+ *in6 = in6_zero;
+ } else if (nhc->nhc_family == AF_INET6) {
+ p32 = (__be32 *) __entry->gw4;
+ *p32 = 0;
- dev = nh->fib_nh_dev;
- __assign_str(name, dev ? dev->name : "-");
+ in6 = (struct in6_addr *)__entry->gw6;
+ *in6 = nhc->nhc_gw.ipv6;
+ }
} else {
- p32 = (__be32 *) __entry->saddr;
+ p32 = (__be32 *) __entry->gw4;
*p32 = 0;
- p32 = (__be32 *) __entry->gw;
- *p32 = 0;
-
- __assign_str(name, "-");
+ in6 = (struct in6_addr *)__entry->gw6;
+ *in6 = in6_zero;
}
),
- TP_printk("table %u oif %d iif %d proto %u %pI4/%u -> %pI4/%u tos %d scope %d flags %x ==> dev %s gw %pI4 src %pI4 err %d",
+ 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",
__entry->tb_id, __entry->oif, __entry->iif, __entry->proto,
__entry->src, __entry->sport, __entry->dst, __entry->dport,
__entry->tos, __entry->scope, __entry->flags,
- __get_str(name), __entry->gw, __entry->saddr, __entry->err)
+ __get_str(name), __entry->gw4, __entry->gw6, __entry->err)
);
#endif /* _TRACE_FIB_H */