[IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2]

Background: RFC 4293 deprecates existing individual, named ICMP
type counters to be replaced with the ICMPMsgStatsTable. This table
includes entries for both IPv4 and IPv6, and requires counting of all
ICMP types, whether or not the machine implements the type.

These patches "remove" (but not really) the existing counters, and
replace them with the ICMPMsgStats tables for v4 and v6.
It includes the named counters in the /proc places they were, but gets the
values for them from the new tables. It also counts packets generated
from raw socket output (e.g., OutEchoes, MLD queries, RA's from
radvd, etc).

Changes:
1) create icmpmsg_statistics mib
2) create icmpv6msg_statistics mib
3) modify existing counters to use these
4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types
        listed by number for easy SNMP parsing
5) modify /proc/net/snmp printing for "Icmp" to get the named data
        from new counters.
[new to 2nd revision]
6) support per-interface ICMP stats
7) use common macro for per-device stat macros

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/snmp.h b/include/linux/snmp.h
index d24c554738218495bb7a8f90fa9eaee8a6a3fcb1..86977e31548a29a2a0f1c3dfea1da2cc1d441395 100644 (file)
--- a/include/linux/snmp.h
+++ b/include/linux/snmp.h
@@ -91,35 +91,12 @@ enum
        ICMP6_MIB_NUM = 0,
        ICMP6_MIB_INMSGS,                       /* InMsgs */
        ICMP6_MIB_INERRORS,                     /* InErrors */
-       ICMP6_MIB_INDESTUNREACHS,               /* InDestUnreachs */
-       ICMP6_MIB_INPKTTOOBIGS,                 /* InPktTooBigs */
-       ICMP6_MIB_INTIMEEXCDS,                  /* InTimeExcds */
-       ICMP6_MIB_INPARMPROBLEMS,               /* InParmProblems */
-       ICMP6_MIB_INECHOS,                      /* InEchos */
-       ICMP6_MIB_INECHOREPLIES,                /* InEchoReplies */
-       ICMP6_MIB_INGROUPMEMBQUERIES,           /* InGroupMembQueries */
-       ICMP6_MIB_INGROUPMEMBRESPONSES,         /* InGroupMembResponses */
-       ICMP6_MIB_INGROUPMEMBREDUCTIONS,        /* InGroupMembReductions */
-       ICMP6_MIB_INROUTERSOLICITS,             /* InRouterSolicits */
-       ICMP6_MIB_INROUTERADVERTISEMENTS,       /* InRouterAdvertisements */
-       ICMP6_MIB_INNEIGHBORSOLICITS,           /* InNeighborSolicits */
-       ICMP6_MIB_INNEIGHBORADVERTISEMENTS,     /* InNeighborAdvertisements */
-       ICMP6_MIB_INREDIRECTS,                  /* InRedirects */
        ICMP6_MIB_OUTMSGS,                      /* OutMsgs */
-       ICMP6_MIB_OUTDESTUNREACHS,              /* OutDestUnreachs */
-       ICMP6_MIB_OUTPKTTOOBIGS,                /* OutPktTooBigs */
-       ICMP6_MIB_OUTTIMEEXCDS,                 /* OutTimeExcds */
-       ICMP6_MIB_OUTPARMPROBLEMS,              /* OutParmProblems */
-       ICMP6_MIB_OUTECHOREPLIES,               /* OutEchoReplies */
-       ICMP6_MIB_OUTROUTERSOLICITS,            /* OutRouterSolicits */
-       ICMP6_MIB_OUTNEIGHBORSOLICITS,          /* OutNeighborSolicits */
-       ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS,    /* OutNeighborAdvertisements */
-       ICMP6_MIB_OUTREDIRECTS,                 /* OutRedirects */
-       ICMP6_MIB_OUTGROUPMEMBRESPONSES,        /* OutGroupMembResponses */
-       ICMP6_MIB_OUTGROUPMEMBREDUCTIONS,       /* OutGroupMembReductions */
        __ICMP6_MIB_MAX
 };
 
+#define __ICMP6MSG_MIB_MAX 512 /* Out+In for all 8-bit ICMPv6 types */
+
 /* tcp mib definitions */
 /*
  * RFC 1213:  MIB-II TCP group

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 3ec7d07346d63d7a192b8668f5f4f896d1fd0bd0..448eccb206384f541a43c530fa5ac3add38eb329 100644 (file)
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -154,6 +154,7 @@ struct ipv6_devstat {
        struct proc_dir_entry   *proc_dir_entry;
        DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
        DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6);
+       DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg);
 };
 
 struct inet6_dev 

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 9573c8d1915370d04df50ead4345cd128eaf1f73..31b3f1b45a2bfd1479bd685224e2a22238aa2ee6 100644 (file)
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -112,45 +112,28 @@ struct frag_hdr {
 extern int sysctl_ipv6_bindv6only;
 extern int sysctl_mld_max_msf;
 
-/* MIBs */
-DECLARE_SNMP_STAT(struct ipstats_mib, ipv6_statistics);
-#define IP6_INC_STATS(idev,field)              ({                      \
+#define _DEVINC(statname, modifier, idev, field)                       \
+({                                                                     \
        struct inet6_dev *_idev = (idev);                               \
        if (likely(_idev != NULL))                                      \
-               SNMP_INC_STATS(_idev->stats.ipv6, field);               \
-       SNMP_INC_STATS(ipv6_statistics, field);                         \
-})
-#define IP6_INC_STATS_BH(idev,field)           ({                      \
-       struct inet6_dev *_idev = (idev);                               \
-       if (likely(_idev != NULL))                                      \
-               SNMP_INC_STATS_BH(_idev->stats.ipv6, field);            \
-       SNMP_INC_STATS_BH(ipv6_statistics, field);                      \
-})
-#define IP6_INC_STATS_USER(idev,field)         ({                      \
-       struct inet6_dev *_idev = (idev);                               \
-       if (likely(_idev != NULL))                                      \
-               SNMP_INC_STATS_USER(_idev->stats.ipv6, field);          \
-       SNMP_INC_STATS_USER(ipv6_statistics, field);                    \
+               SNMP_INC_STATS##modifier((_idev)->stats.statname, (field)); \
+       SNMP_INC_STATS##modifier(statname##_statistics, (field));       \
 })
+
+/* MIBs */
+DECLARE_SNMP_STAT(struct ipstats_mib, ipv6_statistics);
+
+#define IP6_INC_STATS(idev,field)      _DEVINC(ipv6, , idev, field)
+#define IP6_INC_STATS_BH(idev,field)   _DEVINC(ipv6, _BH, idev, field)
+#define IP6_INC_STATS_USER(idev,field) _DEVINC(ipv6, _USER, idev, field)
+
 DECLARE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics);
-#define ICMP6_INC_STATS(idev, field)           ({                      \
-       struct inet6_dev *_idev = (idev);                               \
-       if (likely(_idev != NULL))                                      \
-               SNMP_INC_STATS(idev->stats.icmpv6, field);              \
-       SNMP_INC_STATS(icmpv6_statistics, field);                       \
-})
-#define ICMP6_INC_STATS_BH(idev, field)                ({                      \
-       struct inet6_dev *_idev = (idev);                               \
-       if (likely(_idev != NULL))                                      \
-               SNMP_INC_STATS_BH((_idev)->stats.icmpv6, field);        \
-       SNMP_INC_STATS_BH(icmpv6_statistics, field);                    \
-})
-#define ICMP6_INC_STATS_USER(idev, field)      ({                      \
-       struct inet6_dev *_idev = (idev);                               \
-       if (likely(_idev != NULL))                                      \
-               SNMP_INC_STATS_USER(_idev->stats.icmpv6, field);        \
-       SNMP_INC_STATS_USER(icmpv6_statistics, field);                  \
-})
+DECLARE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg_statistics);
+
+#define ICMP6_INC_STATS(idev, field)   _DEVINC(icmpv6, , idev, field)
+#define ICMP6_INC_STATS_BH(idev, field)        _DEVINC(icmpv6, _BH, idev, field)
+#define ICMP6_INC_STATS_USER(idev, field) _DEVINC(icmpv6, _USER, idev, field)
+
 #define ICMP6_INC_STATS_OFFSET_BH(idev, field, offset) ({                      \
        struct inet6_dev *_idev = idev;                                         \
        __typeof__(offset) _offset = (offset);                                  \
@@ -158,6 +141,20 @@ DECLARE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics);
                SNMP_INC_STATS_OFFSET_BH(_idev->stats.icmpv6, field, _offset);  \
        SNMP_INC_STATS_OFFSET_BH(icmpv6_statistics, field, _offset);            \
 })
+
+#define ICMP6MSGOUT_INC_STATS(idev, field) \
+       _DEVINC(icmpv6msg, , idev, field +256)
+#define ICMP6MSGOUT_INC_STATS_BH(idev, field) \
+       _DEVINC(icmpv6msg, _BH, idev, field +256)
+#define ICMP6MSGOUT_INC_STATS_USER(idev, field) \
+       _DEVINC(icmpv6msg, _USER, idev, field +256)
+#define ICMP6MSGIN_INC_STATS(idev, field) \
+        _DEVINC(icmpv6msg, , idev, field)
+#define ICMP6MSGIN_INC_STATS_BH(idev, field) \
+       _DEVINC(icmpv6msg, _BH, idev, field)
+#define ICMP6MSGIN_INC_STATS_USER(idev, field) \
+       _DEVINC(icmpv6msg, _USER, idev, field)
+
 DECLARE_SNMP_STAT(struct udp_mib, udp_stats_in6);
 DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
 #define UDP6_INC_STATS_BH(field, is_udplite)                         do  {  \

diff --git a/include/net/snmp.h b/include/net/snmp.h
index 464970e39ec087f334cc448f073e4552f804b26a..a566e11d2f9826bd9368652d01c1cf0082c65deb 100644 (file)
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -88,6 +88,12 @@ struct icmpv6_mib {
        unsigned long   mibs[ICMP6_MIB_MAX];
 } __SNMP_MIB_ALIGN__;
 
+#define ICMP6MSG_MIB_MAX  __ICMP6MSG_MIB_MAX
+struct icmpv6msg_mib {
+       unsigned long   mibs[ICMP6MSG_MIB_MAX];
+} __SNMP_MIB_ALIGN__;
+
+
 /* TCP */
 #define TCP_MIB_MAX    __TCP_MIB_MAX
 struct tcp_mib {

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a68c626567f2a33c65e5a99cf218190ad286dbd8..9c2e94f1c637f9970fc6851976f92484a1dd68ab 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -261,9 +261,15 @@ static int snmp6_alloc_dev(struct inet6_dev *idev)
                          sizeof(struct icmpv6_mib),
                          __alignof__(struct icmpv6_mib)) < 0)
                goto err_icmp;
+       if (snmp_mib_init((void **)idev->stats.icmpv6msg,
+                         sizeof(struct icmpv6msg_mib),
+                         __alignof__(struct icmpv6msg_mib)) < 0)
+               goto err_icmpmsg;
 
        return 0;
 
+err_icmpmsg:
+       snmp_mib_free((void **)idev->stats.icmpv6);
 err_icmp:
        snmp_mib_free((void **)idev->stats.ipv6);
 err_ip:
@@ -272,6 +278,7 @@ err_ip:
 
 static int snmp6_free_dev(struct inet6_dev *idev)
 {
+       snmp_mib_free((void **)idev->stats.icmpv6msg);
        snmp_mib_free((void **)idev->stats.icmpv6);
        snmp_mib_free((void **)idev->stats.ipv6);
        return 0;

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index e5c5aad44bb15dee473cdaa5bbfd133f827ed43b..bc929381fa46c59926266efde1a6702d2460f1e4 100644 (file)
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -719,6 +719,9 @@ static int __init init_ipv6_mibs(void)
        if (snmp_mib_init((void **)icmpv6_statistics, sizeof (struct icmpv6_mib),
                          __alignof__(struct icmpv6_mib)) < 0)
                goto err_icmp_mib;
+       if (snmp_mib_init((void **)icmpv6msg_statistics,
+           sizeof (struct icmpv6msg_mib), __alignof__(struct icmpv6_mib)) < 0)
+               goto err_icmpmsg_mib;
        if (snmp_mib_init((void **)udp_stats_in6, sizeof (struct udp_mib),
                          __alignof__(struct udp_mib)) < 0)
                goto err_udp_mib;
@@ -730,6 +733,8 @@ static int __init init_ipv6_mibs(void)
 err_udplite_mib:
        snmp_mib_free((void **)udp_stats_in6);
 err_udp_mib:
+       snmp_mib_free((void **)icmpv6msg_statistics);
+err_icmpmsg_mib:
        snmp_mib_free((void **)icmpv6_statistics);
 err_icmp_mib:
        snmp_mib_free((void **)ipv6_statistics);

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 6a6714d154ed08422141ffecd05032be02fb8a80..47b8ce232e8439cd7a213c035d3c3f17c7131fac 100644 (file)
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -69,6 +69,8 @@
 
 DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics) __read_mostly;
 EXPORT_SYMBOL(icmpv6_statistics);
+DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg_statistics) __read_mostly;
+EXPORT_SYMBOL(icmpv6msg_statistics);
 
 /*
  *     The ICMP socket(s). This is the most convenient way to flow control
@@ -456,8 +458,6 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
        }
        err = icmpv6_push_pending_frames(sk, &fl, &tmp_hdr, len + sizeof(struct icmp6hdr));
 
-       if (type >= ICMPV6_DEST_UNREACH && type <= ICMPV6_PARAMPROB)
-               ICMP6_INC_STATS_OFFSET_BH(idev, ICMP6_MIB_OUTDESTUNREACHS, type - ICMPV6_DEST_UNREACH);
        ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
 
 out_put:
@@ -547,9 +547,6 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
        }
        err = icmpv6_push_pending_frames(sk, &fl, &tmp_hdr, skb->len + sizeof(struct icmp6hdr));
 
-       ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTECHOREPLIES);
-       ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
-
 out_put:
        if (likely(idev != NULL))
                in6_dev_put(idev);
@@ -656,10 +653,7 @@ static int icmpv6_rcv(struct sk_buff **pskb)
 
        type = hdr->icmp6_type;
 
-       if (type >= ICMPV6_DEST_UNREACH && type <= ICMPV6_PARAMPROB)
-               ICMP6_INC_STATS_OFFSET_BH(idev, ICMP6_MIB_INDESTUNREACHS, type - ICMPV6_DEST_UNREACH);
-       else if (type >= ICMPV6_ECHO_REQUEST && type <= NDISC_REDIRECT)
-               ICMP6_INC_STATS_OFFSET_BH(idev, ICMP6_MIB_INECHOS, type - ICMPV6_ECHO_REQUEST);
+       ICMP6MSGIN_INC_STATS_BH(idev, type);
 
        switch (type) {
        case ICMPV6_ECHO_REQUEST:

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index e46d4683eab0aa3ef2d8f29508d2f3008787911b..011082ed921a24c632d79c3790d7ead18408f05a 100644 (file)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1399,6 +1399,13 @@ int ip6_push_pending_frames(struct sock *sk)
 
        skb->dst = dst_clone(&rt->u.dst);
        IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
+       if (proto == IPPROTO_ICMPV6) {
+               struct inet6_dev *idev = ip6_dst_idev(skb->dst);
+
+               ICMP6MSGOUT_INC_STATS_BH(idev, icmp6_hdr(skb)->icmp6_type);
+               ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
+       }
+
        err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dst->dev, dst_output);
        if (err) {
                if (err > 0)

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index e2ab43c989d4d5f993731be026d1840938728dc5..86d908b1caea1ac0c9bbbe6d78f8ea7fff05663d 100644 (file)
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1479,10 +1479,11 @@ static void mld_sendpack(struct sk_buff *skb)
        err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
                mld_dev_queue_xmit);
        if (!err) {
-               ICMP6_INC_STATS(idev,ICMP6_MIB_OUTMSGS);
-               IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
+               ICMP6MSGOUT_INC_STATS_BH(idev, ICMPV6_MLD2_REPORT);
+               ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
+               IP6_INC_STATS_BH(idev, IPSTATS_MIB_OUTMCASTPKTS);
        } else
-               IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+               IP6_INC_STATS_BH(idev, IPSTATS_MIB_OUTDISCARDS);
 
        if (likely(idev != NULL))
                in6_dev_put(idev);
@@ -1822,10 +1823,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
        err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
                mld_dev_queue_xmit);
        if (!err) {
-               if (type == ICMPV6_MGM_REDUCTION)
-                       ICMP6_INC_STATS(idev, ICMP6_MIB_OUTGROUPMEMBREDUCTIONS);
-               else
-                       ICMP6_INC_STATS(idev, ICMP6_MIB_OUTGROUPMEMBRESPONSES);
+               ICMP6MSGOUT_INC_STATS(idev, type);
                ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
                IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
        } else

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index d2d44dc22f194f80e969aa3ba351cbe5d8fa80d8..7ea5a502ca084acd0dd8eb69426a77107eda8e4f 100644 (file)
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -431,7 +431,7 @@ static void __ndisc_send(struct net_device *dev,
                         struct neighbour *neigh,
                         struct in6_addr *daddr, struct in6_addr *saddr,
                         struct icmp6hdr *icmp6h, struct in6_addr *target,
-                        int llinfo, int icmp6_mib_outnd)
+                        int llinfo)
 {
        struct flowi fl;
        struct dst_entry *dst;
@@ -441,9 +441,11 @@ static void __ndisc_send(struct net_device *dev,
        struct inet6_dev *idev;
        int len;
        int err;
-       u8 *opt;
+       u8 *opt, type;
+
+       type = icmp6h->icmp6_type;
 
-       ndisc_flow_init(&fl, icmp6h->icmp6_type, saddr, daddr,
+       ndisc_flow_init(&fl, type, saddr, daddr,
                        dev->ifindex);
 
        dst = ndisc_dst_alloc(dev, neigh, daddr, ip6_output);
@@ -504,7 +506,7 @@ static void __ndisc_send(struct net_device *dev,
 
        err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, dst_output);
        if (!err) {
-               ICMP6_INC_STATS(idev, icmp6_mib_outnd);
+               ICMP6MSGOUT_INC_STATS(idev, type);
                ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
        }
 
@@ -542,8 +544,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
 
        __ndisc_send(dev, neigh, daddr, src_addr,
                     &icmp6h, solicited_addr,
-                    inc_opt ? ND_OPT_TARGET_LL_ADDR : 0,
-                    ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS);
+                    inc_opt ? ND_OPT_TARGET_LL_ADDR : 0);
 }
 
 void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
@@ -564,8 +565,7 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
 
        __ndisc_send(dev, neigh, daddr, saddr,
                     &icmp6h, solicit,
-                    !ipv6_addr_any(saddr) ? ND_OPT_SOURCE_LL_ADDR : 0,
-                    ICMP6_MIB_OUTNEIGHBORSOLICITS);
+                    !ipv6_addr_any(saddr) ? ND_OPT_SOURCE_LL_ADDR : 0);
 }
 
 void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
@@ -599,8 +599,7 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
 #endif
        __ndisc_send(dev, NULL, daddr, saddr,
                     &icmp6h, NULL,
-                    send_sllao ? ND_OPT_SOURCE_LL_ADDR : 0,
-                    ICMP6_MIB_OUTROUTERSOLICITS);
+                    send_sllao ? ND_OPT_SOURCE_LL_ADDR : 0);
 }
 
 
@@ -1455,7 +1454,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
        IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
        err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, buff, NULL, dst->dev, dst_output);
        if (!err) {
-               ICMP6_INC_STATS(idev, ICMP6_MIB_OUTREDIRECTS);
+               ICMP6MSGOUT_INC_STATS(idev, NDISC_REDIRECT);
                ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
        }
 

diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index a712a2289484b28dcc4664355a408364247eb43c..db945018579eb919ee6dd8c68749269b26cda466 100644 (file)
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -86,47 +86,33 @@ static struct snmp_mib snmp6_ipstats_list[] = {
 };
 
 static struct snmp_mib snmp6_icmp6_list[] = {
-/* icmpv6 mib according to RFC 2466
-
-   Exceptions:  {In|Out}AdminProhibs are removed, because I see
-               no good reasons to account them separately
-               of another dest.unreachs.
-               OutErrs is zero identically.
-               OutEchos too.
-               OutRouterAdvertisements too.
-               OutGroupMembQueries too.
- */
+/* icmpv6 mib according to RFC 2466 */
        SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
        SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
-       SNMP_MIB_ITEM("Icmp6InDestUnreachs", ICMP6_MIB_INDESTUNREACHS),
-       SNMP_MIB_ITEM("Icmp6InPktTooBigs", ICMP6_MIB_INPKTTOOBIGS),
-       SNMP_MIB_ITEM("Icmp6InTimeExcds", ICMP6_MIB_INTIMEEXCDS),
-       SNMP_MIB_ITEM("Icmp6InParmProblems", ICMP6_MIB_INPARMPROBLEMS),
-       SNMP_MIB_ITEM("Icmp6InEchos", ICMP6_MIB_INECHOS),
-       SNMP_MIB_ITEM("Icmp6InEchoReplies", ICMP6_MIB_INECHOREPLIES),
-       SNMP_MIB_ITEM("Icmp6InGroupMembQueries", ICMP6_MIB_INGROUPMEMBQUERIES),
-       SNMP_MIB_ITEM("Icmp6InGroupMembResponses", ICMP6_MIB_INGROUPMEMBRESPONSES),
-       SNMP_MIB_ITEM("Icmp6InGroupMembReductions", ICMP6_MIB_INGROUPMEMBREDUCTIONS),
-       SNMP_MIB_ITEM("Icmp6InRouterSolicits", ICMP6_MIB_INROUTERSOLICITS),
-       SNMP_MIB_ITEM("Icmp6InRouterAdvertisements", ICMP6_MIB_INROUTERADVERTISEMENTS),
-       SNMP_MIB_ITEM("Icmp6InNeighborSolicits", ICMP6_MIB_INNEIGHBORSOLICITS),
-       SNMP_MIB_ITEM("Icmp6InNeighborAdvertisements", ICMP6_MIB_INNEIGHBORADVERTISEMENTS),
-       SNMP_MIB_ITEM("Icmp6InRedirects", ICMP6_MIB_INREDIRECTS),
        SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
-       SNMP_MIB_ITEM("Icmp6OutDestUnreachs", ICMP6_MIB_OUTDESTUNREACHS),
-       SNMP_MIB_ITEM("Icmp6OutPktTooBigs", ICMP6_MIB_OUTPKTTOOBIGS),
-       SNMP_MIB_ITEM("Icmp6OutTimeExcds", ICMP6_MIB_OUTTIMEEXCDS),
-       SNMP_MIB_ITEM("Icmp6OutParmProblems", ICMP6_MIB_OUTPARMPROBLEMS),
-       SNMP_MIB_ITEM("Icmp6OutEchoReplies", ICMP6_MIB_OUTECHOREPLIES),
-       SNMP_MIB_ITEM("Icmp6OutRouterSolicits", ICMP6_MIB_OUTROUTERSOLICITS),
-       SNMP_MIB_ITEM("Icmp6OutNeighborSolicits", ICMP6_MIB_OUTNEIGHBORSOLICITS),
-       SNMP_MIB_ITEM("Icmp6OutNeighborAdvertisements", ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS),
-       SNMP_MIB_ITEM("Icmp6OutRedirects", ICMP6_MIB_OUTREDIRECTS),
-       SNMP_MIB_ITEM("Icmp6OutGroupMembResponses", ICMP6_MIB_OUTGROUPMEMBRESPONSES),
-       SNMP_MIB_ITEM("Icmp6OutGroupMembReductions", ICMP6_MIB_OUTGROUPMEMBREDUCTIONS),
        SNMP_MIB_SENTINEL
 };
 
+/* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
+static char *icmp6type2name[256] = {
+       [ICMPV6_DEST_UNREACH] = "DestUnreachs",
+       [ICMPV6_PKT_TOOBIG] = "PktTooBigs",
+       [ICMPV6_TIME_EXCEED] = "TimeExcds",
+       [ICMPV6_PARAMPROB] = "ParmProblems",
+       [ICMPV6_ECHO_REQUEST] = "EchoRequest",
+       [ICMPV6_ECHO_REPLY] = "EchoReplies",
+       [ICMPV6_MGM_QUERY] = "GroupMembQueries",
+       [ICMPV6_MGM_REPORT] = "GroupMembResponses",
+       [ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
+       [ICMPV6_MLD2_REPORT] = "MLDv2Reports",
+       [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
+       [NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
+       [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
+       [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
+       [NDISC_REDIRECT] = "NeighborRedirects",
+};
+
+
 static struct snmp_mib snmp6_udp6_list[] = {
        SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
        SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
@@ -143,6 +129,40 @@ static struct snmp_mib snmp6_udplite6_list[] = {
        SNMP_MIB_SENTINEL
 };
 
+static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib)
+{
+       static char name[32];
+       int i;
+
+       /* print by name -- deprecated items */
+       for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
+               int icmptype;
+               char *p;
+
+               icmptype = i & 0xff;
+               p = icmp6type2name[icmptype];
+               if (!p) /* don't print un-named types here */
+                       continue;
+               (void) snprintf(name, sizeof(name)-1, "Icmp6%s%s",
+                       i & 0x100 ? "Out" : "In", p);
+               seq_printf(seq, "%-32s\t%lu\n", name,
+                       snmp_fold_field(mib, i));
+       }
+
+       /* print by number (nonzero only) - ICMPMsgStat format */
+       for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
+               unsigned long val;
+
+               val = snmp_fold_field(mib, i);
+               if (!val)
+                       continue;
+               (void) snprintf(name, sizeof(name)-1, "Icmp6%sType%u",
+                       i & 0x100 ?  "Out" : "In", i & 0xff);
+               seq_printf(seq, "%-32s\t%lu\n", name, val);
+       }
+       return;
+}
+
 static inline void
 snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
 {
@@ -160,9 +180,11 @@ static int snmp6_seq_show(struct seq_file *seq, void *v)
                seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
                snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
                snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
+               snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg);
        } else {
                snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list);
                snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list);
+               snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics);
                snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
                snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list);
        }