1 files changed, 199 insertions, 155 deletions

diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 50a13e75d70..3317440ea34 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -7,8 +7,6 @@
  *		PROC file system.  This is very similar to the IPv4 version,
  *		except it reports the sockets in the INET6 address family.
  *
- * Version:	$Id: proc.c,v 1.17 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:	David S. Miller (davem@caip.rutgers.edu)
  * 		YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
  *
@@ -17,49 +15,54 @@
  *		as published by the Free Software Foundation; either version
  *		2 of the License, or (at your option) any later version.
  */
-#include <linux/config.h>
-#include <linux/sched.h>
 #include <linux/socket.h>
 #include <linux/net.h>
 #include <linux/ipv6.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/stddef.h>
+#include <linux/export.h>
+#include <net/net_namespace.h>
+#include <net/ip.h>
 #include <net/sock.h>
 #include <net/tcp.h>
+#include <net/udp.h>
 #include <net/transp_v6.h>
 #include <net/ipv6.h>
 
-#ifdef CONFIG_PROC_FS
-static struct proc_dir_entry *proc_net_devsnmp6;
-
-static int fold_prot_inuse(struct proto *proto)
-{
-	int res = 0;
-	int cpu;
-
-	for (cpu=0; cpu<NR_CPUS; cpu++)
-		res += proto->stats[cpu].inuse;
-
-	return res;
-}
-
 static int sockstat6_seq_show(struct seq_file *seq, void *v)
 {
+	struct net *net = seq->private;
+
 	seq_printf(seq, "TCP6: inuse %d\n",
-		       fold_prot_inuse(&tcpv6_prot));
+		       sock_prot_inuse_get(net, &tcpv6_prot));
 	seq_printf(seq, "UDP6: inuse %d\n",
-		       fold_prot_inuse(&udpv6_prot));
+		       sock_prot_inuse_get(net, &udpv6_prot));
+	seq_printf(seq, "UDPLITE6: inuse %d\n",
+			sock_prot_inuse_get(net, &udplitev6_prot));
 	seq_printf(seq, "RAW6: inuse %d\n",
-		       fold_prot_inuse(&rawv6_prot));
+		       sock_prot_inuse_get(net, &rawv6_prot));
 	seq_printf(seq, "FRAG6: inuse %d memory %d\n",
-		       ip6_frag_nqueues, atomic_read(&ip6_frag_mem));
+		       ip6_frag_nqueues(net), ip6_frag_mem(net));
 	return 0;
 }
 
-static struct snmp_mib snmp6_ipstats_list[] = {
+static int sockstat6_seq_open(struct inode *inode, struct file *file)
+{
+	return single_open_net(inode, file, sockstat6_seq_show);
+}
+
+static const struct file_operations sockstat6_seq_fops = {
+	.owner	 = THIS_MODULE,
+	.open	 = sockstat6_seq_open,
+	.read	 = seq_read,
+	.llseek	 = seq_lseek,
+	.release = single_release_net,
+};
+
+static const struct snmp_mib snmp6_ipstats_list[] = {
 /* ipv6 mib according to RFC 2465 */
-	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
+	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
 	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
 	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
 	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
@@ -69,7 +72,7 @@ static struct snmp_mib snmp6_ipstats_list[] = {
 	SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
 	SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
 	SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
-	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
+	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
 	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
 	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
 	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
@@ -81,117 +84,183 @@ static struct snmp_mib snmp6_ipstats_list[] = {
 	SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
 	SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
 	SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
+	SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
+	SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
+	SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
+	SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
+	SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
+	SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
+	/* IPSTATS_MIB_CSUMERRORS is not relevant in IPv6 (no checksum) */
+	SNMP_MIB_ITEM("Ip6InNoECTPkts", IPSTATS_MIB_NOECTPKTS),
+	SNMP_MIB_ITEM("Ip6InECT1Pkts", IPSTATS_MIB_ECT1PKTS),
+	SNMP_MIB_ITEM("Ip6InECT0Pkts", IPSTATS_MIB_ECT0PKTS),
+	SNMP_MIB_ITEM("Ip6InCEPkts", IPSTATS_MIB_CEPKTS),
 	SNMP_MIB_SENTINEL
 };
 
-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.
- */
+static const struct snmp_mib snmp6_icmp6_list[] = {
+/* 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_ITEM("Icmp6OutErrors", ICMP6_MIB_OUTERRORS),
+	SNMP_MIB_ITEM("Icmp6InCsumErrors", ICMP6_MIB_CSUMERRORS),
 	SNMP_MIB_SENTINEL
 };
 
-static struct snmp_mib snmp6_udp6_list[] = {
+/* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
+static const char *const icmp6type2name[256] = {
+	[ICMPV6_DEST_UNREACH] = "DestUnreachs",
+	[ICMPV6_PKT_TOOBIG] = "PktTooBigs",
+	[ICMPV6_TIME_EXCEED] = "TimeExcds",
+	[ICMPV6_PARAMPROB] = "ParmProblems",
+	[ICMPV6_ECHO_REQUEST] = "Echos",
+	[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] = "Redirects",
+};
+
+
+static const struct snmp_mib snmp6_udp6_list[] = {
 	SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
 	SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
 	SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
 	SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
+	SNMP_MIB_ITEM("Udp6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
+	SNMP_MIB_ITEM("Udp6SndbufErrors", UDP_MIB_SNDBUFERRORS),
+	SNMP_MIB_ITEM("Udp6InCsumErrors", UDP_MIB_CSUMERRORS),
+	SNMP_MIB_SENTINEL
+};
+
+static const struct snmp_mib snmp6_udplite6_list[] = {
+	SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
+	SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
+	SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
+	SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
+	SNMP_MIB_ITEM("UdpLite6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
+	SNMP_MIB_ITEM("UdpLite6SndbufErrors", UDP_MIB_SNDBUFERRORS),
+	SNMP_MIB_ITEM("UdpLite6InCsumErrors", UDP_MIB_CSUMERRORS),
 	SNMP_MIB_SENTINEL
 };
 
-static unsigned long
-fold_field(void *mib[], int offt)
+static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
 {
-        unsigned long res = 0;
-        int i;
- 
-        for_each_cpu(i) {
-                res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
-                res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
-        }
-        return res;
+	char name[32];
+	int i;
+
+	/* print by name -- deprecated items */
+	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
+		int icmptype;
+		const char *p;
+
+		icmptype = i & 0xff;
+		p = icmp6type2name[icmptype];
+		if (!p)	/* don't print un-named types here */
+			continue;
+		snprintf(name, sizeof(name), "Icmp6%s%s",
+			i & 0x100 ? "Out" : "In", p);
+		seq_printf(seq, "%-32s\t%lu\n", name,
+			   atomic_long_read(smib + i));
+	}
+
+	/* print by number (nonzero only) - ICMPMsgStat format */
+	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
+		unsigned long val;
+
+		val = atomic_long_read(smib + i);
+		if (!val)
+			continue;
+		snprintf(name, sizeof(name), "Icmp6%sType%u",
+			i & 0x100 ?  "Out" : "In", i & 0xff);
+		seq_printf(seq, "%-32s\t%lu\n", name, val);
+	}
 }
 
-static inline void
-snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
+/* can be called either with percpu mib (pcpumib != NULL),
+ * or shared one (smib != NULL)
+ */
+static void snmp6_seq_show_item(struct seq_file *seq, void __percpu *pcpumib,
+				atomic_long_t *smib,
+				const struct snmp_mib *itemlist)
 {
 	int i;
-	for (i=0; itemlist[i].name; i++)
-		seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, 
-				fold_field(mib, itemlist[i].entry));
+	unsigned long val;
+
+	for (i = 0; itemlist[i].name; i++) {
+		val = pcpumib ?
+			snmp_fold_field(pcpumib, itemlist[i].entry) :
+			atomic_long_read(smib + itemlist[i].entry);
+		seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, val);
+	}
 }
 
-static int snmp6_seq_show(struct seq_file *seq, void *v)
+static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu *mib,
+				  const struct snmp_mib *itemlist, size_t syncpoff)
 {
-	struct inet6_dev *idev = (struct inet6_dev *)seq->private;
+	int i;
 
-	if (idev) {
-		seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
-		snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
-	} 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_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
-	}
+	for (i = 0; itemlist[i].name; i++)
+		seq_printf(seq, "%-32s\t%llu\n", itemlist[i].name,
+			   snmp_fold_field64(mib, itemlist[i].entry, syncpoff));
+}
+
+static int snmp6_seq_show(struct seq_file *seq, void *v)
+{
+	struct net *net = (struct net *)seq->private;
+
+	snmp6_seq_show_item64(seq, net->mib.ipv6_statistics,
+			    snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
+	snmp6_seq_show_item(seq, net->mib.icmpv6_statistics,
+			    NULL, snmp6_icmp6_list);
+	snmp6_seq_show_icmpv6msg(seq, net->mib.icmpv6msg_statistics->mibs);
+	snmp6_seq_show_item(seq, net->mib.udp_stats_in6,
+			    NULL, snmp6_udp6_list);
+	snmp6_seq_show_item(seq, net->mib.udplite_stats_in6,
+			    NULL, snmp6_udplite6_list);
 	return 0;
 }
 
-static int sockstat6_seq_open(struct inode *inode, struct file *file)
+static int snmp6_seq_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, sockstat6_seq_show, NULL);
+	return single_open_net(inode, file, snmp6_seq_show);
 }
 
-static struct file_operations sockstat6_seq_fops = {
+static const struct file_operations snmp6_seq_fops = {
 	.owner	 = THIS_MODULE,
-	.open	 = sockstat6_seq_open,
+	.open	 = snmp6_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
-	.release = single_release,
+	.release = single_release_net,
 };
 
-static int snmp6_seq_open(struct inode *inode, struct file *file)
+static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
 {
-	return single_open(file, snmp6_seq_show, PDE(inode)->data);
+	struct inet6_dev *idev = (struct inet6_dev *)seq->private;
+
+	seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
+	snmp6_seq_show_item64(seq, idev->stats.ipv6,
+			    snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
+	snmp6_seq_show_item(seq, NULL, idev->stats.icmpv6dev->mibs,
+			    snmp6_icmp6_list);
+	snmp6_seq_show_icmpv6msg(seq, idev->stats.icmpv6msgdev->mibs);
+	return 0;
 }
 
-static struct file_operations snmp6_seq_fops = {
+static int snmp6_dev_seq_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, snmp6_dev_seq_show, PDE_DATA(inode));
+}
+
+static const struct file_operations snmp6_dev_seq_fops = {
 	.owner	 = THIS_MODULE,
-	.open	 = snmp6_seq_open,
+	.open	 = snmp6_dev_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
 	.release = single_release,
@@ -200,102 +269,77 @@ static struct file_operations snmp6_seq_fops = {
 int snmp6_register_dev(struct inet6_dev *idev)
 {
 	struct proc_dir_entry *p;
+	struct net *net;
 
 	if (!idev || !idev->dev)
 		return -EINVAL;
 
-	if (!proc_net_devsnmp6)
+	net = dev_net(idev->dev);
+	if (!net->mib.proc_net_devsnmp6)
 		return -ENOENT;
 
-	p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6);
+	p = proc_create_data(idev->dev->name, S_IRUGO,
+			     net->mib.proc_net_devsnmp6,
+			     &snmp6_dev_seq_fops, idev);
 	if (!p)
 		return -ENOMEM;
 
-	p->data = idev;
-	p->proc_fops = &snmp6_seq_fops;
-
 	idev->stats.proc_dir_entry = p;
 	return 0;
 }
 
 int snmp6_unregister_dev(struct inet6_dev *idev)
 {
-	if (!proc_net_devsnmp6)
+	struct net *net = dev_net(idev->dev);
+	if (!net->mib.proc_net_devsnmp6)
 		return -ENOENT;
-	if (!idev || !idev->stats.proc_dir_entry)
+	if (!idev->stats.proc_dir_entry)
 		return -EINVAL;
-	remove_proc_entry(idev->stats.proc_dir_entry->name,
-			  proc_net_devsnmp6);
+	proc_remove(idev->stats.proc_dir_entry);
+	idev->stats.proc_dir_entry = NULL;
 	return 0;
 }
 
-int __init ipv6_misc_proc_init(void)
+static int __net_init ipv6_proc_init_net(struct net *net)
 {
-	int rc = 0;
+	if (!proc_create("sockstat6", S_IRUGO, net->proc_net,
+			 &sockstat6_seq_fops))
+		return -ENOMEM;
 
-	if (!proc_net_fops_create("snmp6", S_IRUGO, &snmp6_seq_fops))
+	if (!proc_create("snmp6", S_IRUGO, net->proc_net, &snmp6_seq_fops))
 		goto proc_snmp6_fail;
 
-	proc_net_devsnmp6 = proc_mkdir("dev_snmp6", proc_net);
-	if (!proc_net_devsnmp6)
+	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
+	if (!net->mib.proc_net_devsnmp6)
 		goto proc_dev_snmp6_fail;
+	return 0;
 
-	if (!proc_net_fops_create("sockstat6", S_IRUGO, &sockstat6_seq_fops))
-		goto proc_sockstat6_fail;
-out:
-	return rc;
-
-proc_sockstat6_fail:
-	proc_net_remove("dev_snmp6");
 proc_dev_snmp6_fail:
-	proc_net_remove("snmp6");
+	remove_proc_entry("snmp6", net->proc_net);
 proc_snmp6_fail:
-	rc = -ENOMEM;
-	goto out;
-}
-
-void ipv6_misc_proc_exit(void)
-{
-	proc_net_remove("sockstat6");
-	proc_net_remove("dev_snmp6");
-	proc_net_remove("snmp6");
+	remove_proc_entry("sockstat6", net->proc_net);
+	return -ENOMEM;
 }
 
-#else	/* CONFIG_PROC_FS */
-
-
-int snmp6_register_dev(struct inet6_dev *idev)
+static void __net_exit ipv6_proc_exit_net(struct net *net)
 {
-	return 0;
+	remove_proc_entry("sockstat6", net->proc_net);
+	remove_proc_entry("dev_snmp6", net->proc_net);
+	remove_proc_entry("snmp6", net->proc_net);
 }
 
-int snmp6_unregister_dev(struct inet6_dev *idev)
-{
-	return 0;
-}
-#endif	/* CONFIG_PROC_FS */
+static struct pernet_operations ipv6_proc_ops = {
+	.init = ipv6_proc_init_net,
+	.exit = ipv6_proc_exit_net,
+};
 
-int snmp6_alloc_dev(struct inet6_dev *idev)
+int __init ipv6_misc_proc_init(void)
 {
-	int err = -ENOMEM;
-
-	if (!idev || !idev->dev)
-		return -EINVAL;
-
-	if (snmp6_mib_init((void **)idev->stats.icmpv6, sizeof(struct icmpv6_mib),
-			   __alignof__(struct icmpv6_mib)) < 0)
-		goto err_icmp;
-
-	return 0;
-
-err_icmp:
-	return err;
+	return register_pernet_subsys(&ipv6_proc_ops);
 }
 
-int snmp6_free_dev(struct inet6_dev *idev)
+void ipv6_misc_proc_exit(void)
 {
-	snmp6_mib_free((void **)idev->stats.icmpv6);
-	return 0;
+	unregister_pernet_subsys(&ipv6_proc_ops);
 }
 
-