[PATCH] ipv4: show pmtu in route list
From: Julian Anastasov <ja@ssi.bg>
Date: 2012-07-20 08:55:14
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
Override the metrics with rt_pmtu Signed-off-by: Julian Anastasov <ja@ssi.bg> --- Is this patch still useful if routing cache is removed? net/ipv4/route.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 9f7ffbe..d547f6f 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c@@ -2909,6 +2909,7 @@ static int rt_fill_info(struct net *net, struct nlmsghdr *nlh; unsigned long expires = 0; u32 error; + u32 metrics[RTAX_MAX]; nlh = nlmsg_put(skb, pid, seq, event, sizeof(*r), flags); if (nlh == NULL)
@@ -2953,7 +2954,10 @@ static int rt_fill_info(struct net *net, nla_put_be32(skb, RTA_GATEWAY, rt->rt_gateway)) goto nla_put_failure; - if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0) + memcpy(metrics, dst_metrics_ptr(&rt->dst), sizeof(metrics)); + if (rt->rt_pmtu) + metrics[RTAX_MTU - 1] = rt->rt_pmtu; + if (rtnetlink_put_metrics(skb, metrics) < 0) goto nla_put_failure; if (rt->rt_mark &&
--
1.7.3.4