diff options
| author | David Ahern <dsa@cumulusnetworks.com> | 2015-11-19 21:24:22 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-22 17:54:10 +0100 |
| commit | b811580d91e9c0945b0a923dcec3e10cce04ac30 (patch) | |
| tree | edc3afb044af9fa8d12a773fe676194b939a3d7f /include/trace | |
| parent | net: avoid NULL deref in napi_get_frags() (diff) | |
| download | linux-b811580d91e9c0945b0a923dcec3e10cce04ac30.tar.xz linux-b811580d91e9c0945b0a923dcec3e10cce04ac30.zip | |
net: IPv6 fib lookup tracepoint
Add tracepoint to show fib6 table lookups and result.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/fib6.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/trace/events/fib6.h b/include/trace/events/fib6.h new file mode 100644 index 000000000000..4cf6bac4686d --- /dev/null +++ b/include/trace/events/fib6.h @@ -0,0 +1,76 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fib6 + +#if !defined(_TRACE_FIB6_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_FIB6_H + +#include <linux/in6.h> +#include <net/flow.h> +#include <net/ip6_fib.h> +#include <linux/tracepoint.h> + +TRACE_EVENT(fib6_table_lookup, + + TP_PROTO(const struct net *net, const struct rt6_info *rt, + u32 tb_id, const struct flowi6 *flp), + + TP_ARGS(net, rt, tb_id, flp), + + TP_STRUCT__entry( + __field( u32, tb_id ) + + __field( int, oif ) + __field( int, iif ) + __field( __u8, tos ) + __field( __u8, scope ) + __field( __u8, flags ) + __array( __u8, src, 16 ) + __array( __u8, dst, 16 ) + + __dynamic_array( char, name, IFNAMSIZ ) + __array( __u8, gw, 16 ) + ), + + TP_fast_assign( + struct in6_addr *in6; + + __entry->tb_id = tb_id; + __entry->oif = flp->flowi6_oif; + __entry->iif = flp->flowi6_iif; + __entry->tos = flp->flowi6_tos; + __entry->scope = flp->flowi6_scope; + __entry->flags = flp->flowi6_flags; + + in6 = (struct in6_addr *)__entry->src; + *in6 = flp->saddr; + + in6 = (struct in6_addr *)__entry->dst; + *in6 = flp->daddr; + + if (rt->rt6i_idev) { + __assign_str(name, rt->rt6i_idev->dev->name); + } else { + __assign_str(name, ""); + } + if (rt == net->ipv6.ip6_null_entry) { + struct in6_addr in6_zero = {}; + + in6 = (struct in6_addr *)__entry->gw; + *in6 = in6_zero; + + } else if (rt) { + in6 = (struct in6_addr *)__entry->gw; + *in6 = rt->rt6i_gateway; + } + ), + + TP_printk("table %3u oif %d iif %d src %pI6c dst %pI6c tos %d scope %d flags %x ==> dev %s gw %pI6c", + __entry->tb_id, __entry->oif, __entry->iif, + __entry->src, __entry->dst, __entry->tos, __entry->scope, + __entry->flags, __get_str(name), __entry->gw) +); + +#endif /* _TRACE_FIB6_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |