From b14cc1f2fb310e6ff00d3df867dc336d6b521f3f Mon Sep 17 00:00:00 2001

From: Thomas Haller <thaller@redhat.com>

Date: Thu, 20 Mar 2014 19:18:42 +0100

Subject: [PATCH 1/3] route: don't enforce minlen in inet6_parse_protinfo()

 (IFLA_PROTINFO) and inet_parse_af() (IFLA_AF_SPEC)

Older kernel version might have fewer values defined, so they would send

netlink messages that got rejected. Only check that at least one value

got sent.

This is especially grave as libnl uses an internal copy of the

kernel header files. Thus not only it is bound to the installed kernel

headers but to the libnl internal header copies that might easily be out

of sync with the kernel.

This affects IFLA_PROTINFO, inet6_parse_protinfo():

  - tb[IFLA_INET6_CONF], expecting DEVCONF_MAX

  - tb[IFLA_INET6_STATS], expecting __IPSTATS_MIB_MAX

  - tb[IFLA_INET6_ICMP6STATS], expecting __ICMP6_MIB_MAX

and IFLA_AF_SPEC, inet_parse_af():

  - tb[IFLA_INET_CONF], expecting IPV4_DEVCONF_MAX

https://bugzilla.redhat.com/show_bug.cgi?id=1062533

Acked-by: Thomas Graf <tgraf@suug.ch>

Signed-off-by: Thomas Haller <thaller@redhat.com>

(cherry picked from commit dfd0a80ec845a800504fecb936c2b33d6918fc9c)

---

 lib/route/link/inet.c  |  4 +++-

 lib/route/link/inet6.c | 18 +++++++++++++-----

 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/lib/route/link/inet.c b/lib/route/link/inet.c

index e2c867d..eb2e8ae 100644

--- a/lib/route/link/inet.c

+++ b/lib/route/link/inet.c

@@ -92,7 +92,7 @@ static void inet_free(struct rtnl_link *link, void *data)

 }

 static struct nla_policy inet_policy[IFLA_INET6_MAX+1] = {

-	[IFLA_INET_CONF]	= { .minlen = IPV4_DEVCONF_MAX * 4 },

+	[IFLA_INET_CONF]	= { .minlen = 4 },

 };

 static int inet_parse_af(struct rtnl_link *link, struct nlattr *attr, void *data)

@@ -104,6 +104,8 @@ static int inet_parse_af(struct rtnl_link *link, struct nlattr *attr, void *data

 	err = nla_parse_nested(tb, IFLA_INET_MAX, attr, inet_policy);

 	if (err < 0)

 		return err;

+	if (tb[IFLA_INET_CONF] && nla_len(tb[IFLA_INET_CONF]) % 4)

+		return -EINVAL;

 	if (tb[IFLA_INET_CONF])

 		nla_memcpy(&id->i_conf, tb[IFLA_INET_CONF], sizeof(id->i_conf));

diff --git a/lib/route/link/inet6.c b/lib/route/link/inet6.c

index 4c627bd..f171fed 100644

--- a/lib/route/link/inet6.c

+++ b/lib/route/link/inet6.c

@@ -45,9 +45,9 @@ static void inet6_free(struct rtnl_link *link, void *data)

 static struct nla_policy inet6_policy[IFLA_INET6_MAX+1] = {

 	[IFLA_INET6_FLAGS]	= { .type = NLA_U32 },

 	[IFLA_INET6_CACHEINFO]	= { .minlen = sizeof(struct ifla_cacheinfo) },

-	[IFLA_INET6_CONF]	= { .minlen = DEVCONF_MAX * 4 },

-	[IFLA_INET6_STATS]	= { .minlen = __IPSTATS_MIB_MAX * 8 },

-	[IFLA_INET6_ICMP6STATS]	= { .minlen = __ICMP6_MIB_MAX * 8 },

+	[IFLA_INET6_CONF]	= { .minlen = 4 },

+	[IFLA_INET6_STATS]	= { .minlen = 8 },

+	[IFLA_INET6_ICMP6STATS]	= { .minlen = 8 },

 };

 static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,

@@ -60,6 +60,12 @@ static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,

 	err = nla_parse_nested(tb, IFLA_INET6_MAX, attr, inet6_policy);

 	if (err < 0)

 		return err;

+	if (tb[IFLA_INET6_CONF] && nla_len(tb[IFLA_INET6_CONF]) % 4)

+		return -EINVAL;

+	if (tb[IFLA_INET6_STATS] && nla_len(tb[IFLA_INET6_STATS]) % 8)

+		return -EINVAL;

+	if (tb[IFLA_INET6_ICMP6STATS] && nla_len(tb[IFLA_INET6_ICMP6STATS]) % 8)

+		return -EINVAL;

 	if (tb[IFLA_INET6_FLAGS])

 		i6->i6_flags = nla_get_u32(tb[IFLA_INET6_FLAGS]);

@@ -80,8 +86,9 @@ static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,

 		unsigned char *cnt = nla_data(tb[IFLA_INET6_STATS]);

 		uint64_t stat;

 		int i;

+		int len = min_t(int, __IPSTATS_MIB_MAX, nla_len(tb[IFLA_INET6_STATS]) / 8);

-		for (i = 1; i < __IPSTATS_MIB_MAX; i++) {

+		for (i = 1; i < len; i++) {

 			memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));

 			rtnl_link_set_stat(link, RTNL_LINK_IP6_INPKTS + i - 1,

 					   stat);

@@ -92,8 +99,9 @@ static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,

 		unsigned char *cnt = nla_data(tb[IFLA_INET6_ICMP6STATS]);

 		uint64_t stat;

 		int i;

+		int len = min_t(int, __ICMP6_MIB_MAX, nla_len(tb[IFLA_INET6_ICMP6STATS]) / 8);

-		for (i = 1; i < __ICMP6_MIB_MAX; i++) {

+		for (i = 1; i < len; i++) {

 			memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));

 			rtnl_link_set_stat(link, RTNL_LINK_ICMP6_INMSGS + i - 1,

 					   stat);

-- 

1.8.5.3

From b104b959d0508d89be672d751b370ad92cb0dc72 Mon Sep 17 00:00:00 2001

From: Thomas Haller <thaller@redhat.com>

Date: Thu, 20 Mar 2014 19:18:43 +0100

Subject: [PATCH 2/3] route: detect missing cfgid in rtnl_link_inet_get_conf()

If the netlink message for IFLA_INET_CONF contains less then

IPV4_DEVCONF_MAX entires, the last entries in i_conf are unset.

Modify rtnl_link_inet_get_conf() to return -EINVAL when accessing

an unset cfgid.

Acked-by: Thomas Graf <tgraf@suug.ch>

Signed-off-by: Thomas Haller <thaller@redhat.com>

(cherry picked from commit 3584a7ab55cb93225a0216385b62fbe5331388cd)

---

 lib/route/link/inet.c | 14 ++++++++++++--

 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/lib/route/link/inet.c b/lib/route/link/inet.c

index eb2e8ae..2e61323 100644

--- a/lib/route/link/inet.c

+++ b/lib/route/link/inet.c

@@ -107,8 +107,14 @@ static int inet_parse_af(struct rtnl_link *link, struct nlattr *attr, void *data

 	if (tb[IFLA_INET_CONF] && nla_len(tb[IFLA_INET_CONF]) % 4)

 		return -EINVAL;

-	if (tb[IFLA_INET_CONF])

+	if (tb[IFLA_INET_CONF]) {

+		int i;

+		int len = min_t(int, IPV4_DEVCONF_MAX, nla_len(tb[IFLA_INET_CONF]) / 4);

+

+		for (i = 0; i < len; i++)

+			id->i_confset[i] = 1;

 		nla_memcpy(&id->i_conf, tb[IFLA_INET_CONF], sizeof(id->i_conf));

+	}

 	return 0;

 }

@@ -186,7 +192,7 @@ static void inet_dump_details(struct rtnl_link *link,

 	for (i = 0; i < IPV4_DEVCONF_MAX; i++) {

 		nl_dump_line(p, "%-19s %3u",

 			rtnl_link_inet_devconf2str(i+1, buf, sizeof(buf)),

-			id->i_conf[i]);

+			id->i_confset[i] ? id->i_conf[i] : 0);

 		if (++n == 3) {

 			nl_dump(p, "\n");

@@ -222,6 +228,8 @@ static struct rtnl_link_af_ops inet_ops = {

  * @return 0 on success or a negative error code.

  * @return -NLE_RANGE cfgid is out of range, 1..IPV4_DEVCONF_MAX

  * @return -NLE_NOATTR configuration setting not available

+ * @return -NLE_INVAL cfgid not set. If the link was received via netlink,

+ *                    it means that the cfgid is not supported.

  */

 int rtnl_link_inet_get_conf(struct rtnl_link *link, const unsigned int cfgid,

 			    uint32_t *res)

@@ -234,6 +242,8 @@ int rtnl_link_inet_get_conf(struct rtnl_link *link, const unsigned int cfgid,

 	if (!(id = rtnl_link_af_alloc(link, &inet_ops)))

 		return -NLE_NOATTR;

+	if (!id->i_confset[cfgid - 1])

+		return -NLE_INVAL;

 	*res = id->i_conf[cfgid - 1];

 	return 0;

-- 

1.8.5.3

From 8421ae8b6bfa7a88cf9cdddf07fabd88362de963 Mon Sep 17 00:00:00 2001

From: Thomas Haller <thaller@redhat.com>

Date: Thu, 20 Mar 2014 19:18:44 +0100

Subject: [PATCH 3/3] route: update kernel header snmp.h and fix

 inet6_parse_protinfo() after kernel API breakage

Take 'include/uapi/linux/snmp.h' from current kernel v3.13

(commit d8ec26d7f8287f5788a494f56e8814210f0e64be).

The header file added new values for IPSTATS_MIB_* and ICMP6_MIB_*, but

more importantly, the kernel broke user space API by reordering enum values in

IPSTATS_MIB_*. Add a workaround when parsing IFLA_PROTINFO trying to

be compatible with both older and newer kernels.

Note that this workaround might fail for some specific kernel versions by

assuming the old enum value mapping, although the kernel version already

contains the API change. In this case rtnl_link_get_stat() mixes up

values.

Acked-by: Thomas Graf <tgraf@suug.ch>

Signed-off-by: Thomas Haller <thaller@redhat.com>

(cherry picked from commit 5981a39583ab65dca230a8ee70625626d9ec9fc8)

---

 include/linux/snmp.h         |  43 +++++++++++++---

 include/netlink/route/link.h |   6 +++

 lib/route/link.c             |   6 +++

 lib/route/link/inet6.c       | 117 +++++++++++++++++++++++++++++++++++++++----

 4 files changed, 156 insertions(+), 16 deletions(-)

diff --git a/include/linux/snmp.h b/include/linux/snmp.h

index 12b2b18..1bdb4a3 100644

--- a/include/linux/snmp.h

+++ b/include/linux/snmp.h

@@ -18,7 +18,14 @@

 enum

 {

 	IPSTATS_MIB_NUM = 0,

+/* frequently written fields in fast path, kept in same cache line */

 	IPSTATS_MIB_INPKTS,			/* InReceives */

+	IPSTATS_MIB_INOCTETS,			/* InOctets */

+	IPSTATS_MIB_INDELIVERS,			/* InDelivers */

+	IPSTATS_MIB_OUTFORWDATAGRAMS,		/* OutForwDatagrams */

+	IPSTATS_MIB_OUTPKTS,			/* OutRequests */

+	IPSTATS_MIB_OUTOCTETS,			/* OutOctets */

+/* other fields */

 	IPSTATS_MIB_INHDRERRORS,		/* InHdrErrors */

 	IPSTATS_MIB_INTOOBIGERRORS,		/* InTooBigErrors */

 	IPSTATS_MIB_INNOROUTES,			/* InNoRoutes */

@@ -26,9 +33,6 @@ enum

 	IPSTATS_MIB_INUNKNOWNPROTOS,		/* InUnknownProtos */

 	IPSTATS_MIB_INTRUNCATEDPKTS,		/* InTruncatedPkts */

 	IPSTATS_MIB_INDISCARDS,			/* InDiscards */

-	IPSTATS_MIB_INDELIVERS,			/* InDelivers */

-	IPSTATS_MIB_OUTFORWDATAGRAMS,		/* OutForwDatagrams */

-	IPSTATS_MIB_OUTPKTS,			/* OutRequests */

 	IPSTATS_MIB_OUTDISCARDS,		/* OutDiscards */

 	IPSTATS_MIB_OUTNOROUTES,		/* OutNoRoutes */

 	IPSTATS_MIB_REASMTIMEOUT,		/* ReasmTimeout */

@@ -42,12 +46,15 @@ enum

 	IPSTATS_MIB_OUTMCASTPKTS,		/* OutMcastPkts */

 	IPSTATS_MIB_INBCASTPKTS,		/* InBcastPkts */

 	IPSTATS_MIB_OUTBCASTPKTS,		/* OutBcastPkts */

-	IPSTATS_MIB_INOCTETS,			/* InOctets */

-	IPSTATS_MIB_OUTOCTETS,			/* OutOctets */

 	IPSTATS_MIB_INMCASTOCTETS,		/* InMcastOctets */

 	IPSTATS_MIB_OUTMCASTOCTETS,		/* OutMcastOctets */

 	IPSTATS_MIB_INBCASTOCTETS,		/* InBcastOctets */

 	IPSTATS_MIB_OUTBCASTOCTETS,		/* OutBcastOctets */

+	IPSTATS_MIB_CSUMERRORS,			/* InCsumErrors */

+	IPSTATS_MIB_NOECTPKTS,			/* InNoECTPkts */

+	IPSTATS_MIB_ECT1PKTS,			/* InECT1Pkts */

+	IPSTATS_MIB_ECT0PKTS,			/* InECT0Pkts */

+	IPSTATS_MIB_CEPKTS,			/* InCEPkts */

 	__IPSTATS_MIB_MAX

 };

@@ -85,6 +92,7 @@ enum

 	ICMP_MIB_OUTTIMESTAMPREPS,		/* OutTimestampReps */

 	ICMP_MIB_OUTADDRMASKS,			/* OutAddrMasks */

 	ICMP_MIB_OUTADDRMASKREPS,		/* OutAddrMaskReps */

+	ICMP_MIB_CSUMERRORS,			/* InCsumErrors */

 	__ICMP_MIB_MAX

 };

@@ -101,6 +109,7 @@ enum

 	ICMP6_MIB_INERRORS,			/* InErrors */

 	ICMP6_MIB_OUTMSGS,			/* OutMsgs */

 	ICMP6_MIB_OUTERRORS,			/* OutErrors */

+	ICMP6_MIB_CSUMERRORS,			/* InCsumErrors */

 	__ICMP6_MIB_MAX

 };

@@ -128,6 +137,7 @@ enum

 	TCP_MIB_RETRANSSEGS,			/* RetransSegs */

 	TCP_MIB_INERRS,				/* InErrs */

 	TCP_MIB_OUTRSTS,			/* OutRsts */

+	TCP_MIB_CSUMERRORS,			/* InCsumErrors */

 	__TCP_MIB_MAX

 };

@@ -145,6 +155,7 @@ enum

 	UDP_MIB_OUTDATAGRAMS,			/* OutDatagrams */

 	UDP_MIB_RCVBUFERRORS,			/* RcvbufErrors */

 	UDP_MIB_SNDBUFERRORS,			/* SndbufErrors */

+	UDP_MIB_CSUMERRORS,			/* InCsumErrors */

 	__UDP_MIB_MAX

 };

@@ -192,7 +203,6 @@ enum

 	LINUX_MIB_TCPPARTIALUNDO,		/* TCPPartialUndo */

 	LINUX_MIB_TCPDSACKUNDO,			/* TCPDSACKUndo */

 	LINUX_MIB_TCPLOSSUNDO,			/* TCPLossUndo */

-	LINUX_MIB_TCPLOSS,			/* TCPLoss */

 	LINUX_MIB_TCPLOSTRETRANSMIT,		/* TCPLostRetransmit */

 	LINUX_MIB_TCPRENOFAILURES,		/* TCPRenoFailures */

 	LINUX_MIB_TCPSACKFAILURES,		/* TCPSackFailures */

@@ -201,6 +211,8 @@ enum

 	LINUX_MIB_TCPFORWARDRETRANS,		/* TCPForwardRetrans */

 	LINUX_MIB_TCPSLOWSTARTRETRANS,		/* TCPSlowStartRetrans */

 	LINUX_MIB_TCPTIMEOUTS,			/* TCPTimeouts */

+	LINUX_MIB_TCPLOSSPROBES,		/* TCPLossProbes */

+	LINUX_MIB_TCPLOSSPROBERECOVERY,		/* TCPLossProbeRecovery */

 	LINUX_MIB_TCPRENORECOVERYFAIL,		/* TCPRenoRecoveryFail */

 	LINUX_MIB_TCPSACKRECOVERYFAIL,		/* TCPSackRecoveryFail */

 	LINUX_MIB_TCPSCHEDULERFAILED,		/* TCPSchedulerFailed */

@@ -209,7 +221,6 @@ enum

 	LINUX_MIB_TCPDSACKOFOSENT,		/* TCPDSACKOfoSent */

 	LINUX_MIB_TCPDSACKRECV,			/* TCPDSACKRecv */

 	LINUX_MIB_TCPDSACKOFORECV,		/* TCPDSACKOfoRecv */

-	LINUX_MIB_TCPABORTONSYN,		/* TCPAbortOnSyn */

 	LINUX_MIB_TCPABORTONDATA,		/* TCPAbortOnData */

 	LINUX_MIB_TCPABORTONCLOSE,		/* TCPAbortOnClose */

 	LINUX_MIB_TCPABORTONMEMORY,		/* TCPAbortOnMemory */

@@ -231,6 +242,22 @@ enum

 	LINUX_MIB_TCPDEFERACCEPTDROP,

 	LINUX_MIB_IPRPFILTER, /* IP Reverse Path Filter (rp_filter) */

 	LINUX_MIB_TCPTIMEWAITOVERFLOW,		/* TCPTimeWaitOverflow */

+	LINUX_MIB_TCPREQQFULLDOCOOKIES,		/* TCPReqQFullDoCookies */

+	LINUX_MIB_TCPREQQFULLDROP,		/* TCPReqQFullDrop */

+	LINUX_MIB_TCPRETRANSFAIL,		/* TCPRetransFail */

+	LINUX_MIB_TCPRCVCOALESCE,		/* TCPRcvCoalesce */

+	LINUX_MIB_TCPOFOQUEUE,			/* TCPOFOQueue */

+	LINUX_MIB_TCPOFODROP,			/* TCPOFODrop */

+	LINUX_MIB_TCPOFOMERGE,			/* TCPOFOMerge */

+	LINUX_MIB_TCPCHALLENGEACK,		/* TCPChallengeACK */

+	LINUX_MIB_TCPSYNCHALLENGE,		/* TCPSYNChallenge */

+	LINUX_MIB_TCPFASTOPENACTIVE,		/* TCPFastOpenActive */

+	LINUX_MIB_TCPFASTOPENPASSIVE,		/* TCPFastOpenPassive*/

+	LINUX_MIB_TCPFASTOPENPASSIVEFAIL,	/* TCPFastOpenPassiveFail */

+	LINUX_MIB_TCPFASTOPENLISTENOVERFLOW,	/* TCPFastOpenListenOverflow */

+	LINUX_MIB_TCPFASTOPENCOOKIEREQD,	/* TCPFastOpenCookieReqd */

+	LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES, /* TCPSpuriousRtxHostQueues */

+	LINUX_MIB_BUSYPOLLRXPACKETS,		/* BusyPollRxPackets */

 	__LINUX_MIB_MAX

 };

@@ -264,6 +291,8 @@ enum

 	LINUX_MIB_XFRMOUTPOLDEAD,		/* XfrmOutPolDead */

 	LINUX_MIB_XFRMOUTPOLERROR,		/* XfrmOutPolError */

 	LINUX_MIB_XFRMFWDHDRERROR,		/* XfrmFwdHdrError*/

+	LINUX_MIB_XFRMOUTSTATEINVALID,		/* XfrmOutStateInvalid */

+	LINUX_MIB_XFRMACQUIREERROR,		/* XfrmAcquireError */

 	__LINUX_MIB_XFRMMAX

 };

diff --git a/include/netlink/route/link.h b/include/netlink/route/link.h

index dbde72f..2d061be 100644

--- a/include/netlink/route/link.h

+++ b/include/netlink/route/link.h

@@ -92,6 +92,12 @@ typedef enum {

 	RTNL_LINK_ICMP6_INERRORS,	/*!< ICMPv6 SNMP InErrors */

 	RTNL_LINK_ICMP6_OUTMSGS,	/*!< ICMPv6 SNMP OutMsgs */

 	RTNL_LINK_ICMP6_OUTERRORS,	/*!< ICMPv6 SNMP OutErrors */

+	RTNL_LINK_ICMP6_CSUMERRORS,	/*!< ICMPv6 SNMP InCsumErrors */

+	RTNL_LINK_IP6_CSUMERRORS,	/*!< IPv6 SNMP InCsumErrors */

+	RTNL_LINK_IP6_NOECTPKTS,	/*!< IPv6 SNMP InNoECTPkts */

+	RTNL_LINK_IP6_ECT1PKTS,		/*!< IPv6 SNMP InECT1Pkts */

+	RTNL_LINK_IP6_ECT0PKTS,		/*!< IPv6 SNMP InECT0Pkts */

+	RTNL_LINK_IP6_CEPKTS,		/*!< IPv6 SNMP InCEPkts */

 	__RTNL_LINK_STATS_MAX,

 } rtnl_link_stat_id_t;

diff --git a/lib/route/link.c b/lib/route/link.c

index 3171513..8fe3376 100644

--- a/lib/route/link.c

+++ b/lib/route/link.c

@@ -2470,6 +2470,12 @@ static const struct trans_tbl link_stats[] = {

 	__ADD(RTNL_LINK_ICMP6_INERRORS, ICMP6_InErrors)

 	__ADD(RTNL_LINK_ICMP6_OUTMSGS, ICMP6_OutMsgs)

 	__ADD(RTNL_LINK_ICMP6_OUTERRORS, ICMP6_OutErrors)

+	__ADD(RTNL_LINK_ICMP6_CSUMERRORS, ICMP6_InCsumErrors)

+	__ADD(RTNL_LINK_IP6_CSUMERRORS, Ip6_InCsumErrors)

+	__ADD(RTNL_LINK_IP6_NOECTPKTS, Ip6_InNoECTPkts)

+	__ADD(RTNL_LINK_IP6_ECT1PKTS, Ip6_InECT1Pkts)

+	__ADD(RTNL_LINK_IP6_ECT0PKTS, Ip6_InECT0Pkts)

+	__ADD(RTNL_LINK_IP6_CEPKTS, Ip6_InCEPkts)

 };

 char *rtnl_link_stat2str(int st, char *buf, size_t len)

diff --git a/lib/route/link/inet6.c b/lib/route/link/inet6.c

index f171fed..6fa2741 100644

--- a/lib/route/link/inet6.c

+++ b/lib/route/link/inet6.c

@@ -50,6 +50,84 @@ static struct nla_policy inet6_policy[IFLA_INET6_MAX+1] = {

 	[IFLA_INET6_ICMP6STATS]	= { .minlen = 8 },

 };

+static const uint8_t map_stat_id_from_IPSTATS_MIB_v1[__IPSTATS_MIB_MAX] = {

+	/* 14a196807482e6fc74f15fc03176d5c08880588f^:include/linux/snmp.h

+	 * version before the API change in commit 14a196807482e6fc74f15fc03176d5c08880588f.

+	 * This version was valid since commit edf391ff17232f097d72441c9ad467bcb3b5db18, which

+	 * predates support for parsing IFLA_PROTINFO in libnl3. Such an even older meaning of

+	 * the flags is not supported in libnl3. */

+	[ 1] = RTNL_LINK_IP6_INPKTS,                    /* IPSTATS_MIB_INPKTS                   */

+	[ 2] = RTNL_LINK_IP6_INHDRERRORS,               /* IPSTATS_MIB_INHDRERRORS              */

+	[ 3] = RTNL_LINK_IP6_INTOOBIGERRORS,            /* IPSTATS_MIB_INTOOBIGERRORS           */

+	[ 4] = RTNL_LINK_IP6_INNOROUTES,                /* IPSTATS_MIB_INNOROUTES               */

+	[ 5] = RTNL_LINK_IP6_INADDRERRORS,              /* IPSTATS_MIB_INADDRERRORS             */

+	[ 6] = RTNL_LINK_IP6_INUNKNOWNPROTOS,           /* IPSTATS_MIB_INUNKNOWNPROTOS          */

+	[ 7] = RTNL_LINK_IP6_INTRUNCATEDPKTS,           /* IPSTATS_MIB_INTRUNCATEDPKTS          */

+	[ 8] = RTNL_LINK_IP6_INDISCARDS,                /* IPSTATS_MIB_INDISCARDS               */

+	[ 9] = RTNL_LINK_IP6_INDELIVERS,                /* IPSTATS_MIB_INDELIVERS               */

+	[10] = RTNL_LINK_IP6_OUTFORWDATAGRAMS,          /* IPSTATS_MIB_OUTFORWDATAGRAMS         */

+	[11] = RTNL_LINK_IP6_OUTPKTS,                   /* IPSTATS_MIB_OUTPKTS                  */

+	[12] = RTNL_LINK_IP6_OUTDISCARDS,               /* IPSTATS_MIB_OUTDISCARDS              */

+	[13] = RTNL_LINK_IP6_OUTNOROUTES,               /* IPSTATS_MIB_OUTNOROUTES              */

+	[14] = RTNL_LINK_IP6_REASMTIMEOUT,              /* IPSTATS_MIB_REASMTIMEOUT             */

+	[15] = RTNL_LINK_IP6_REASMREQDS,                /* IPSTATS_MIB_REASMREQDS               */

+	[16] = RTNL_LINK_IP6_REASMOKS,                  /* IPSTATS_MIB_REASMOKS                 */

+	[17] = RTNL_LINK_IP6_REASMFAILS,                /* IPSTATS_MIB_REASMFAILS               */

+	[18] = RTNL_LINK_IP6_FRAGOKS,                   /* IPSTATS_MIB_FRAGOKS                  */

+	[19] = RTNL_LINK_IP6_FRAGFAILS,                 /* IPSTATS_MIB_FRAGFAILS                */

+	[20] = RTNL_LINK_IP6_FRAGCREATES,               /* IPSTATS_MIB_FRAGCREATES              */

+	[21] = RTNL_LINK_IP6_INMCASTPKTS,               /* IPSTATS_MIB_INMCASTPKTS              */

+	[22] = RTNL_LINK_IP6_OUTMCASTPKTS,              /* IPSTATS_MIB_OUTMCASTPKTS             */

+	[23] = RTNL_LINK_IP6_INBCASTPKTS,               /* IPSTATS_MIB_INBCASTPKTS              */

+	[24] = RTNL_LINK_IP6_OUTBCASTPKTS,              /* IPSTATS_MIB_OUTBCASTPKTS             */

+	[25] = RTNL_LINK_IP6_INOCTETS,                  /* IPSTATS_MIB_INOCTETS                 */

+	[26] = RTNL_LINK_IP6_OUTOCTETS,                 /* IPSTATS_MIB_OUTOCTETS                */

+	[27] = RTNL_LINK_IP6_INMCASTOCTETS,             /* IPSTATS_MIB_INMCASTOCTETS            */

+	[28] = RTNL_LINK_IP6_OUTMCASTOCTETS,            /* IPSTATS_MIB_OUTMCASTOCTETS           */

+	[29] = RTNL_LINK_IP6_INBCASTOCTETS,             /* IPSTATS_MIB_INBCASTOCTETS            */

+	[30] = RTNL_LINK_IP6_OUTBCASTOCTETS,            /* IPSTATS_MIB_OUTBCASTOCTETS           */

+};

+

+static const uint8_t map_stat_id_from_IPSTATS_MIB_v2[__IPSTATS_MIB_MAX] = {

+	/* d8ec26d7f8287f5788a494f56e8814210f0e64be:include/uapi/linux/snmp.h

+	 * version since the API change in commit 14a196807482e6fc74f15fc03176d5c08880588f */

+	[ 1] = RTNL_LINK_IP6_INPKTS,                    /* IPSTATS_MIB_INPKTS                   */

+	[ 2] = RTNL_LINK_IP6_INOCTETS,                  /* IPSTATS_MIB_INOCTETS                 */

+	[ 3] = RTNL_LINK_IP6_INDELIVERS,                /* IPSTATS_MIB_INDELIVERS               */

+	[ 4] = RTNL_LINK_IP6_OUTFORWDATAGRAMS,          /* IPSTATS_MIB_OUTFORWDATAGRAMS         */

+	[ 5] = RTNL_LINK_IP6_OUTPKTS,                   /* IPSTATS_MIB_OUTPKTS                  */

+	[ 6] = RTNL_LINK_IP6_OUTOCTETS,                 /* IPSTATS_MIB_OUTOCTETS                */

+	[ 7] = RTNL_LINK_IP6_INHDRERRORS,               /* IPSTATS_MIB_INHDRERRORS              */

+	[ 8] = RTNL_LINK_IP6_INTOOBIGERRORS,            /* IPSTATS_MIB_INTOOBIGERRORS           */

+	[ 9] = RTNL_LINK_IP6_INNOROUTES,                /* IPSTATS_MIB_INNOROUTES               */

+	[10] = RTNL_LINK_IP6_INADDRERRORS,              /* IPSTATS_MIB_INADDRERRORS             */

+	[11] = RTNL_LINK_IP6_INUNKNOWNPROTOS,           /* IPSTATS_MIB_INUNKNOWNPROTOS          */

+	[12] = RTNL_LINK_IP6_INTRUNCATEDPKTS,           /* IPSTATS_MIB_INTRUNCATEDPKTS          */

+	[13] = RTNL_LINK_IP6_INDISCARDS,                /* IPSTATS_MIB_INDISCARDS               */

+	[14] = RTNL_LINK_IP6_OUTDISCARDS,               /* IPSTATS_MIB_OUTDISCARDS              */

+	[15] = RTNL_LINK_IP6_OUTNOROUTES,               /* IPSTATS_MIB_OUTNOROUTES              */

+	[16] = RTNL_LINK_IP6_REASMTIMEOUT,              /* IPSTATS_MIB_REASMTIMEOUT             */

+	[17] = RTNL_LINK_IP6_REASMREQDS,                /* IPSTATS_MIB_REASMREQDS               */

+	[18] = RTNL_LINK_IP6_REASMOKS,                  /* IPSTATS_MIB_REASMOKS                 */

+	[19] = RTNL_LINK_IP6_REASMFAILS,                /* IPSTATS_MIB_REASMFAILS               */

+	[20] = RTNL_LINK_IP6_FRAGOKS,                   /* IPSTATS_MIB_FRAGOKS                  */

+	[21] = RTNL_LINK_IP6_FRAGFAILS,                 /* IPSTATS_MIB_FRAGFAILS                */

+	[22] = RTNL_LINK_IP6_FRAGCREATES,               /* IPSTATS_MIB_FRAGCREATES              */

+	[23] = RTNL_LINK_IP6_INMCASTPKTS,               /* IPSTATS_MIB_INMCASTPKTS              */

+	[24] = RTNL_LINK_IP6_OUTMCASTPKTS,              /* IPSTATS_MIB_OUTMCASTPKTS             */

+	[25] = RTNL_LINK_IP6_INBCASTPKTS,               /* IPSTATS_MIB_INBCASTPKTS              */

+	[26] = RTNL_LINK_IP6_OUTBCASTPKTS,              /* IPSTATS_MIB_OUTBCASTPKTS             */

+	[27] = RTNL_LINK_IP6_INMCASTOCTETS,             /* IPSTATS_MIB_INMCASTOCTETS            */

+	[28] = RTNL_LINK_IP6_OUTMCASTOCTETS,            /* IPSTATS_MIB_OUTMCASTOCTETS           */

+	[29] = RTNL_LINK_IP6_INBCASTOCTETS,             /* IPSTATS_MIB_INBCASTOCTETS            */

+	[30] = RTNL_LINK_IP6_OUTBCASTOCTETS,            /* IPSTATS_MIB_OUTBCASTOCTETS           */

+	[31] = RTNL_LINK_IP6_CSUMERRORS,                /* IPSTATS_MIB_CSUMERRORS               */

+	[32] = RTNL_LINK_IP6_NOECTPKTS,                 /* IPSTATS_MIB_NOECTPKTS                */

+	[33] = RTNL_LINK_IP6_ECT1PKTS,                  /* IPSTATS_MIB_ECT1PKTS                 */

+	[34] = RTNL_LINK_IP6_ECT0PKTS,                  /* IPSTATS_MIB_ECT0PKTS                 */

+	[35] = RTNL_LINK_IP6_CEPKTS,                    /* IPSTATS_MIB_CEPKTS                   */

+};

+

 static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,

 				void *data)

 {

@@ -86,12 +164,23 @@ static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,

 		unsigned char *cnt = nla_data(tb[IFLA_INET6_STATS]);

 		uint64_t stat;

 		int i;

-		int len = min_t(int, __IPSTATS_MIB_MAX, nla_len(tb[IFLA_INET6_STATS]) / 8);

+		int len = nla_len(tb[IFLA_INET6_STATS]) / 8;

+		const uint8_t *map_stat_id = map_stat_id_from_IPSTATS_MIB_v2;

+

+		if (len < 32 ||

+		    (tb[IFLA_INET6_ICMP6STATS] && nla_len(tb[IFLA_INET6_ICMP6STATS]) < 6)) {

+			/* kernel commit 14a196807482e6fc74f15fc03176d5c08880588f reordered the values.

+			 * The later commit 6a5dc9e598fe90160fee7de098fa319665f5253e added values

+			 * IPSTATS_MIB_CSUMERRORS/ICMP6_MIB_CSUMERRORS. If the netlink is shorter

+			 * then this, assume that the kernel uses the previous meaning of the

+			 * enumeration. */

+			map_stat_id = map_stat_id_from_IPSTATS_MIB_v1;

+		}

+		len = min_t(int, __IPSTATS_MIB_MAX, len);

 		for (i = 1; i < len; i++) {

 			memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));

-			rtnl_link_set_stat(link, RTNL_LINK_IP6_INPKTS + i - 1,

-					   stat);

+			rtnl_link_set_stat(link, map_stat_id[i], stat);

 		}

 	}

@@ -343,19 +432,29 @@ static void inet6_dump_stats(struct rtnl_link *link,

 		link->l_stats[RTNL_LINK_IP6_INADDRERRORS]);

 	nl_dump(p, "       InUnknownProtos     InTruncatedPkts   "

-		   "    OutNoRoutes\n");

-	nl_dump(p, "    %18" PRIu64 " %18" PRIu64 " %18" PRIu64 "\n",

+		   "    OutNoRoutes       InCsumErrors\n");

+	nl_dump(p, "    %18" PRIu64 " %18" PRIu64 " %18" PRIu64 " %18" PRIu64 "\n",

 		link->l_stats[RTNL_LINK_IP6_INUNKNOWNPROTOS],

 		link->l_stats[RTNL_LINK_IP6_INTRUNCATEDPKTS],

-		link->l_stats[RTNL_LINK_IP6_OUTNOROUTES]);

+		link->l_stats[RTNL_LINK_IP6_OUTNOROUTES],

+		link->l_stats[RTNL_LINK_IP6_CSUMERRORS]);

-	nl_dump(p, "    ICMPv6:     InMsgs           InErrors        "

-		   "    OutMsgs          OutErrors\n");

+	nl_dump(p, "           InNoECTPkts          InECT1Pkts   "

+		   "     InECT0Pkts           InCEPkts\n");

 	nl_dump(p, "    %18" PRIu64 " %18" PRIu64 " %18" PRIu64 " %18" PRIu64 "\n",

+		link->l_stats[RTNL_LINK_IP6_NOECTPKTS],

+		link->l_stats[RTNL_LINK_IP6_ECT1PKTS],

+		link->l_stats[RTNL_LINK_IP6_ECT0PKTS],

+		link->l_stats[RTNL_LINK_IP6_CEPKTS]);

+

+	nl_dump(p, "    ICMPv6:     InMsgs           InErrors        "

+		   "    OutMsgs          OutErrors       InCsumErrors\n");

+	nl_dump(p, "    %18" PRIu64 " %18" PRIu64 " %18" PRIu64 " %18" PRIu64 " %18" PRIu64 "\n",

 		link->l_stats[RTNL_LINK_ICMP6_INMSGS],

 		link->l_stats[RTNL_LINK_ICMP6_INERRORS],

 		link->l_stats[RTNL_LINK_ICMP6_OUTMSGS],

-		link->l_stats[RTNL_LINK_ICMP6_OUTERRORS]);

+		link->l_stats[RTNL_LINK_ICMP6_OUTERRORS],

+		link->l_stats[RTNL_LINK_ICMP6_CSUMERRORS]);

 }

 static const struct nla_policy protinfo_policy = {

-- 

1.8.5.3