Hi,
In accordance with RFC 2465 (IPv6 MIB, Routing objects),
this patch adds a DiscardedRoutes counter.
The counter is exposed in /proc/net/rt6_stats.
I know that you don't want more changes to /proc/net/ files.
netstat doesn't use this file and I don't know of a good
reason to add this 1 counter somewhere else instead of in
/proc/net/rt6_stats.
Please apply to 2.5.70-bk-current (after the net_typos patch
that I just sent).
Thanks,
--
~Randy
patch_name: discarded_routes.patch
patch_version: 2003-05-29.17:02:19
author: Randy.Dunlap <rddunlap@osdl.org>
description: add IPv6 routing table statistic: fib_discarded_routes
in struct rt6_statistics and in /proc/net/rt6_stats;
product: Linux
product_versions: linux-2570-602
maintainer: davem@redhat.com
diffstat: =
include/net/ip6_fib.h | 1 +
net/ipv6/ip6_fib.c | 1 +
net/ipv6/route.c | 5 +++--
3 files changed, 5 insertions(+), 2 deletions(-)
diff -Naur ./include/net/ip6_fib.h%FDRT ./include/net/ip6_fib.h
--- ./include/net/ip6_fib.h%FDRT 2003-05-29 16:30:44.000000000 -0700
+++ ./include/net/ip6_fib.h 2003-05-29 16:37:31.000000000 -0700
@@ -114,6 +114,7 @@
__u32 fib_rt_alloc; /* permanent routes */
__u32 fib_rt_entries; /* rt entries in table */
__u32 fib_rt_cache; /* cache routes */
+ __u32 fib_discarded_routes;
};
#define RTN_TL_ROOT 0x0001
diff -Naur ./net/ipv6/route.c%FDRT ./net/ipv6/route.c
--- ./net/ipv6/route.c%FDRT 2003-05-29 16:55:49.000000000 -0700
+++ ./net/ipv6/route.c 2003-05-29 16:56:37.000000000 -0700
@@ -1786,11 +1786,12 @@
static int rt6_stats_seq_show(struct seq_file *seq, void *v)
{
- seq_printf(seq, "%04x %04x %04x %04x %04x %04x\n",
+ seq_printf(seq, "%04x %04x %04x %04x %04x %04x %04x\n",
rt6_stats.fib_nodes, rt6_stats.fib_route_nodes,
rt6_stats.fib_rt_alloc, rt6_stats.fib_rt_entries,
rt6_stats.fib_rt_cache,
- atomic_read(&ip6_dst_ops.entries));
+ atomic_read(&ip6_dst_ops.entries),
+ rt6_stats.fib_discarded_routes);
return 0;
}
diff -Naur ./net/ipv6/ip6_fib.c%FDRT ./net/ipv6/ip6_fib.c
--- ./net/ipv6/ip6_fib.c%FDRT 2003-05-29 15:58:11.000000000 -0700
+++ ./net/ipv6/ip6_fib.c 2003-05-29 17:01:18.000000000 -0700
@@ -896,6 +896,7 @@
*rtp = rt->u.next;
rt->rt6i_node = NULL;
rt6_stats.fib_rt_entries--;
+ rt6_stats.fib_discarded_routes++;
/* Adjust walkers */
read_lock(&fib6_walker_lock);
-
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