snmp: add missing counters for RFC 4293

The IP MIB (RFC 4293) defines stats for InOctets, OutOctets, InMcastOctets and
OutMcastOctets:
http://tools.ietf.org/html/rfc4293
But it seems we don't track those in any way that easy to separate from other
protocols.  This patch adds those missing counters to the stats file. Tested
successfully by me

With help from Eric Dumazet.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 7 deletions

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index a51fb33e6864..4b48819a5b8d 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1449,7 +1449,8 @@ static void mld_sendpack(struct sk_buff *skb)
         int err;
         struct flowi fl;
 
-        IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTREQUESTS);
+        IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
+
         payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
         mldlen = skb->tail - skb->transport_header;
         pip6->payload_len = htons(payload_len);
@@ -1473,13 +1474,15 @@ static void mld_sendpack(struct sk_buff *skb)
         if (err)
                 goto err_out;
 
+        payload_len = skb->len;
+
         err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
                       dst_output);
 out:
         if (!err) {
                 ICMP6MSGOUT_INC_STATS_BH(net, idev, ICMPV6_MLD2_REPORT);
                 ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTMSGS);
-                IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_OUTMCASTPKTS);
+                IP6_UPD_PO_STATS_BH(net, idev, IPSTATS_MIB_OUTMCAST, payload_len);
         } else
                 IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_OUTDISCARDS);
 
@@ -1773,10 +1776,6 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
                      IPV6_TLV_PADN, 0 };
         struct flowi fl;
 
-        rcu_read_lock();
-        IP6_INC_STATS(net, __in6_dev_get(dev),
-                      IPSTATS_MIB_OUTREQUESTS);
-        rcu_read_unlock();
         if (type == ICMPV6_MGM_REDUCTION)
                 snd_addr = &in6addr_linklocal_allrouters;
         else
@@ -1786,6 +1785,11 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         payload_len = len + sizeof(ra);
         full_len = sizeof(struct ipv6hdr) + payload_len;
 
+        rcu_read_lock();
+        IP6_UPD_PO_STATS(net, __in6_dev_get(dev),
+                      IPSTATS_MIB_OUT, full_len);
+        rcu_read_unlock();
+
         skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + full_len, 1, &err);
 
         if (skb == NULL) {
@@ -1838,13 +1842,14 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         if (err)
                 goto err_out;
 
+
         err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
                       dst_output);
 out:
         if (!err) {
                 ICMP6MSGOUT_INC_STATS(net, idev, type);
                 ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
-                IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTMCASTPKTS);
+                IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, full_len);
         } else
                 IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);