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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2012-12-04 01:13:37 +0000
committerDavid S. Miller <davem@davemloft.net>2012-12-04 13:08:10 -0500
commitadfa85e45dac616ff4f8bfceff1621ccafc0b1ff (patch)
tree1d9880ca13a79fbd386bd5bbd48d3031211f8fa3
parent70b386a0cc65041fb01aacf5d4b8d1fa49fc8ce9 (diff)
ipmr/ip6mr: advertise mfc stats via rtnetlink
These statistics can be checked only via /proc/net/ip_mr_cache or SIOCGETSGCNT[_IN6] and thus only for the table RT_TABLE_DEFAULT. Advertising them via rtnetlink allows to get statistics for all cache entries, whatever the table is. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/uapi/linux/rtnetlink.h7
-rw-r--r--net/ipv4/ipmr.c7
-rw-r--r--net/ipv6/ip6mr.c7
3 files changed, 21 insertions, 0 deletions
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index 3dee071770d..80abe27dc2a 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -288,6 +288,7 @@ enum rtattr_type_t {
RTA_MP_ALGO, /* no longer used */
RTA_TABLE,
RTA_MARK,
+ RTA_MFC_STATS,
__RTA_MAX
};
@@ -408,6 +409,12 @@ struct rta_session {
} u;
};
+struct rta_mfc_stats {
+ __u64 mfcs_packets;
+ __u64 mfcs_bytes;
+ __u64 mfcs_wrong_if;
+};
+
/****
* General form of address family dependent message.
****/
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 0c452e3fdc1..c5617d646b9 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -2046,6 +2046,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
int ct;
struct rtnexthop *nhp;
struct nlattr *mp_attr;
+ struct rta_mfc_stats mfcs;
/* If cache is unresolved, don't try to parse IIF and OIF */
if (c->mfc_parent >= MAXVIFS)
@@ -2074,6 +2075,12 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
nla_nest_end(skb, mp_attr);
+ mfcs.mfcs_packets = c->mfc_un.res.pkt;
+ mfcs.mfcs_bytes = c->mfc_un.res.bytes;
+ mfcs.mfcs_wrong_if = c->mfc_un.res.wrong_if;
+ if (nla_put(skb, RTA_MFC_STATS, sizeof(mfcs), &mfcs) < 0)
+ return -EMSGSIZE;
+
rtm->rtm_type = RTN_MULTICAST;
return 1;
}
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 23f364a9efb..4220a7b9338 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2120,6 +2120,7 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
int ct;
struct rtnexthop *nhp;
struct nlattr *mp_attr;
+ struct rta_mfc_stats mfcs;
/* If cache is unresolved, don't try to parse IIF and OIF */
if (c->mf6c_parent >= MAXMIFS)
@@ -2149,6 +2150,12 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
nla_nest_end(skb, mp_attr);
+ mfcs.mfcs_packets = c->mfc_un.res.pkt;
+ mfcs.mfcs_bytes = c->mfc_un.res.bytes;
+ mfcs.mfcs_wrong_if = c->mfc_un.res.wrong_if;
+ if (nla_put(skb, RTA_MFC_STATS, sizeof(mfcs), &mfcs) < 0)
+ return -EMSGSIZE;
+
rtm->rtm_type = RTN_MULTICAST;
return 1;
}