[linux.git] / net / ipv6 / proc.c

/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		This file implements the various access functions for the
 *		PROC file system.  This is very similar to the IPv4 version,
 *		except it reports the sockets in the INET6 address family.
 *
 * Authors:	David S. Miller ([email protected])
 * 		YOSHIFUJI Hideaki <[email protected]>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#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 <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>

static int sockstat6_seq_show(struct seq_file *seq, void *v)
{
	struct net *net = seq->private;

	seq_printf(seq, "TCP6: inuse %d\n",
		       sock_prot_inuse_get(net, &tcpv6_prot));
	seq_printf(seq, "UDP6: inuse %d\n",
		       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",
		       sock_prot_inuse_get(net, &rawv6_prot));
	seq_printf(seq, "FRAG6: inuse %d memory %d\n",
		       ip6_frag_nqueues(net), ip6_frag_mem(net));
	return 0;
}

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_INPKTS),
	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
	SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
	SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
	SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
	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_OUTPKTS),
	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
	SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
	SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
	SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
	SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
	SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
	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),
	SNMP_MIB_SENTINEL
};

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("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
	SNMP_MIB_ITEM("Icmp6OutErrors", ICMP6_MIB_OUTERRORS),
	SNMP_MIB_SENTINEL
};

/* 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_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_SENTINEL
};

static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void __percpu **mib)
{
	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,
			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;
		snprintf(name, sizeof(name), "Icmp6%sType%u",
			i & 0x100 ?  "Out" : "In", i & 0xff);
		seq_printf(seq, "%-32s\t%lu\n", name, val);
	}
}

static void snmp6_seq_show_item(struct seq_file *seq, void __percpu **mib,
				const struct snmp_mib *itemlist)
{
	int i;

	for (i = 0; itemlist[i].name; i++)
		seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
			   snmp_fold_field(mib, itemlist[i].entry));
}

static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu **mib,
				  const struct snmp_mib *itemlist, size_t syncpoff)
{
	int i;

	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, (void __percpu **)net->mib.ipv6_statistics,
			    snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
	snmp6_seq_show_item(seq, (void __percpu **)net->mib.icmpv6_statistics,
			    snmp6_icmp6_list);
	snmp6_seq_show_icmpv6msg(seq,
			    (void __percpu **)net->mib.icmpv6msg_statistics);
	snmp6_seq_show_item(seq, (void __percpu **)net->mib.udp_stats_in6,
			    snmp6_udp6_list);
	snmp6_seq_show_item(seq, (void __percpu **)net->mib.udplite_stats_in6,
			    snmp6_udplite6_list);
	return 0;
}

static int snmp6_seq_open(struct inode *inode, struct file *file)
{
	return single_open_net(inode, file, snmp6_seq_show);
}

static const struct file_operations snmp6_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = snmp6_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release_net,
};

static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
{
	struct inet6_dev *idev = (struct inet6_dev *)seq->private;

	seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
	snmp6_seq_show_item(seq, (void __percpu **)idev->stats.ipv6,
			    snmp6_ipstats_list);
	snmp6_seq_show_item(seq, (void __percpu **)idev->stats.icmpv6,
			    snmp6_icmp6_list);
	snmp6_seq_show_icmpv6msg(seq, (void __percpu **)idev->stats.icmpv6msg);
	return 0;
}

static int snmp6_dev_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, snmp6_dev_seq_show, PDE(inode)->data);
}

static const struct file_operations snmp6_dev_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = snmp6_dev_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release,
};

int snmp6_register_dev(struct inet6_dev *idev)
{
	struct proc_dir_entry *p;
	struct net *net;

	if (!idev || !idev->dev)
		return -EINVAL;

	net = dev_net(idev->dev);
	if (!net->mib.proc_net_devsnmp6)
		return -ENOENT;

	p = proc_create_data(idev->dev->name, S_IRUGO,
			     net->mib.proc_net_devsnmp6,
			     &snmp6_dev_seq_fops, idev);
	if (!p)
		return -ENOMEM;

	idev->stats.proc_dir_entry = p;
	return 0;
}

int snmp6_unregister_dev(struct inet6_dev *idev)
{
	struct net *net = dev_net(idev->dev);
	if (!net->mib.proc_net_devsnmp6)
		return -ENOENT;
	if (!idev->stats.proc_dir_entry)
		return -EINVAL;
	remove_proc_entry(idev->stats.proc_dir_entry->name,
			  net->mib.proc_net_devsnmp6);
	idev->stats.proc_dir_entry = NULL;
	return 0;
}

static int __net_init ipv6_proc_init_net(struct net *net)
{
	if (!proc_net_fops_create(net, "sockstat6", S_IRUGO,
			&sockstat6_seq_fops))
		return -ENOMEM;

	if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops))
		goto proc_snmp6_fail;

	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;

proc_snmp6_fail:
	proc_net_remove(net, "sockstat6");
proc_dev_snmp6_fail:
	proc_net_remove(net, "dev_snmp6");
	return -ENOMEM;
}

static void __net_exit ipv6_proc_exit_net(struct net *net)
{
	proc_net_remove(net, "sockstat6");
	proc_net_remove(net, "dev_snmp6");
	proc_net_remove(net, "snmp6");
}

static struct pernet_operations ipv6_proc_ops = {
	.init = ipv6_proc_init_net,
	.exit = ipv6_proc_exit_net,
};

int __init ipv6_misc_proc_init(void)
{
	return register_pernet_subsys(&ipv6_proc_ops);
}

void ipv6_misc_proc_exit(void)
{
	unregister_pernet_subsys(&ipv6_proc_ops);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* INET An implementation of the TCP/IP protocol suite for the LINUX
	3	* operating system. INET is implemented using the BSD Socket
	4	* interface as the means of communication with the user level.
	5	*
	6	* This file implements the various access functions for the
	7	* PROC file system. This is very similar to the IPv4 version,
	8	* except it reports the sockets in the INET6 address family.
	9	*
1da177e4 LT	10	* Authors: David S. Miller ([email protected])
	11	* YOSHIFUJI Hideaki <[email protected]>
	12	*
	13	* This program is free software; you can redistribute it and/or
	14	* modify it under the terms of the GNU General Public License
	15	* as published by the Free Software Foundation; either version
	16	* 2 of the License, or (at your option) any later version.
	17	*/
1da177e4 LT	18	#include <linux/socket.h>
	19	#include <linux/net.h>
	20	#include <linux/ipv6.h>
	21	#include <linux/proc_fs.h>
	22	#include <linux/seq_file.h>
	23	#include <linux/stddef.h>
457c4cbc	24	#include <net/net_namespace.h>
7f7d9a6b	25	#include <net/ip.h>
1da177e4 LT	26	#include <net/sock.h>
1da177e4 LT	27	#include <net/tcp.h>
1781f7f5	28	#include <net/udp.h>
1da177e4 LT	29	#include <net/transp_v6.h>
	30	#include <net/ipv6.h>
	31
1da177e4 LT	32	static int sockstat6_seq_show(struct seq_file seq, void v)
1da177e4 LT	33	{
dfb12eb7 PE	34	struct net *net = seq->private;
dfb12eb7 PE	35
1da177e4	36	seq_printf(seq, "TCP6: inuse %d\n",
dfb12eb7	37	sock_prot_inuse_get(net, &tcpv6_prot));
1da177e4	38	seq_printf(seq, "UDP6: inuse %d\n",
dfb12eb7	39	sock_prot_inuse_get(net, &udpv6_prot));
ba4e58ec	40	seq_printf(seq, "UDPLITE6: inuse %d\n",
dfb12eb7	41	sock_prot_inuse_get(net, &udplitev6_prot));
1da177e4	42	seq_printf(seq, "RAW6: inuse %d\n",
dfb12eb7	43	sock_prot_inuse_get(net, &rawv6_prot));
1da177e4	44	seq_printf(seq, "FRAG6: inuse %d memory %d\n",
dfb12eb7	45	ip6_frag_nqueues(net), ip6_frag_mem(net));
1da177e4 LT	46	return 0;
	47	}
	48
35f0a5df DL	49	static int sockstat6_seq_open(struct inode inode, struct file file)
	50	{
	51	return single_open_net(inode, file, sockstat6_seq_show);
	52	}
	53
	54	static const struct file_operations sockstat6_seq_fops = {
	55	.owner = THIS_MODULE,
	56	.open = sockstat6_seq_open,
	57	.read = seq_read,
	58	.llseek = seq_lseek,
	59	.release = single_release_net,
	60	};
	61
5833929c	62	static const struct snmp_mib snmp6_ipstats_list[] = {
1da177e4	63	/* ipv6 mib according to RFC 2465 */
edf391ff	64	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
1da177e4 LT	65	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
	66	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
	67	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
	68	SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
	69	SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
	70	SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
	71	SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
	72	SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
	73	SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
edf391ff	74	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
1da177e4 LT	75	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
	76	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
	77	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
	78	SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
	79	SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
	80	SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
	81	SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
	82	SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
	83	SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
	84	SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
	85	SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
edf391ff NH	86	SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
	87	SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
	88	SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
	89	SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
	90	SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
	91	SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
1da177e4 LT	92	SNMP_MIB_SENTINEL
	93	};
	94
5833929c	95	static const struct snmp_mib snmp6_icmp6_list[] = {
14878f75	96	/* icmpv6 mib according to RFC 2466 */
1da177e4 LT	97	SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
1da177e4 LT	98	SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
1da177e4	99	SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
1f8438a8	100	SNMP_MIB_ITEM("Icmp6OutErrors", ICMP6_MIB_OUTERRORS),
1da177e4 LT	101	SNMP_MIB_SENTINEL
	102	};
	103
14878f75	104	/* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
36cbd3dc	105	static const char *const icmp6type2name[256] = {
14878f75 DS	106	[ICMPV6_DEST_UNREACH] = "DestUnreachs",
	107	[ICMPV6_PKT_TOOBIG] = "PktTooBigs",
	108	[ICMPV6_TIME_EXCEED] = "TimeExcds",
	109	[ICMPV6_PARAMPROB] = "ParmProblems",
fa95c283	110	[ICMPV6_ECHO_REQUEST] = "Echos",
14878f75 DS	111	[ICMPV6_ECHO_REPLY] = "EchoReplies",
	112	[ICMPV6_MGM_QUERY] = "GroupMembQueries",
	113	[ICMPV6_MGM_REPORT] = "GroupMembResponses",
	114	[ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
	115	[ICMPV6_MLD2_REPORT] = "MLDv2Reports",
	116	[NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
	117	[NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
	118	[NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
	119	[NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
fa95c283	120	[NDISC_REDIRECT] = "Redirects",
14878f75 DS	121	};
	122
	123
5833929c	124	static const struct snmp_mib snmp6_udp6_list[] = {
1da177e4 LT	125	SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
	126	SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
	127	SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
	128	SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
870be392 ED	129	SNMP_MIB_ITEM("Udp6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
870be392 ED	130	SNMP_MIB_ITEM("Udp6SndbufErrors", UDP_MIB_SNDBUFERRORS),
1da177e4 LT	131	SNMP_MIB_SENTINEL
	132	};
	133
5833929c	134	static const struct snmp_mib snmp6_udplite6_list[] = {
ba4e58ec GR	135	SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
	136	SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
	137	SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
	138	SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
870be392 ED	139	SNMP_MIB_ITEM("UdpLite6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
870be392 ED	140	SNMP_MIB_ITEM("UdpLite6SndbufErrors", UDP_MIB_SNDBUFERRORS),
ba4e58ec GR	141	SNMP_MIB_SENTINEL
	142	};
	143
7d720c3e	144	static void snmp6_seq_show_icmpv6msg(struct seq_file seq, void __percpu *mib)
14878f75	145	{
5ece6c2d	146	char name[32];
14878f75 DS	147	int i;
	148
	149	/* print by name -- deprecated items */
	150	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
	151	int icmptype;
36cbd3dc	152	const char *p;
14878f75 DS	153
	154	icmptype = i & 0xff;
	155	p = icmp6type2name[icmptype];
	156	if (!p) /* don't print un-named types here */
	157	continue;
5ece6c2d	158	snprintf(name, sizeof(name), "Icmp6%s%s",
14878f75 DS	159	i & 0x100 ? "Out" : "In", p);
	160	seq_printf(seq, "%-32s\t%lu\n", name,
	161	snmp_fold_field(mib, i));
	162	}
	163
	164	/* print by number (nonzero only) - ICMPMsgStat format */
	165	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
	166	unsigned long val;
	167
	168	val = snmp_fold_field(mib, i);
	169	if (!val)
	170	continue;
5ece6c2d	171	snprintf(name, sizeof(name), "Icmp6%sType%u",
14878f75 DS	172	i & 0x100 ? "Out" : "In", i & 0xff);
	173	seq_printf(seq, "%-32s\t%lu\n", name, val);
	174	}
14878f75 DS	175	}
14878f75 DS	176
7d720c3e	177	static void snmp6_seq_show_item(struct seq_file seq, void __percpu *mib,
5833929c	178	const struct snmp_mib *itemlist)
1da177e4 LT	179	{
1da177e4 LT	180	int i;
4ce3c183 ED	181
4ce3c183 ED	182	for (i = 0; itemlist[i].name; i++)
1ab1457c	183	seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
7f7d9a6b	184	snmp_fold_field(mib, itemlist[i].entry));
1da177e4 LT	185	}
1da177e4 LT	186
4ce3c183 ED	187	static void snmp6_seq_show_item64(struct seq_file seq, void __percpu *mib,
	188	const struct snmp_mib *itemlist, size_t syncpoff)
	189	{
	190	int i;
	191
	192	for (i = 0; itemlist[i].name; i++)
	193	seq_printf(seq, "%-32s\t%llu\n", itemlist[i].name,
	194	snmp_fold_field64(mib, itemlist[i].entry, syncpoff));
	195	}
	196
1da177e4 LT	197	static int snmp6_seq_show(struct seq_file seq, void v)
1da177e4 LT	198	{
2b4209e4 DL	199	struct net net = (struct net )seq->private;
2b4209e4 DL	200
4ce3c183 ED	201	snmp6_seq_show_item64(seq, (void __percpu **)net->mib.ipv6_statistics,
4ce3c183 ED	202	snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
7d720c3e	203	snmp6_seq_show_item(seq, (void __percpu **)net->mib.icmpv6_statistics,
9261e537	204	snmp6_icmp6_list);
7d720c3e TH	205	snmp6_seq_show_icmpv6msg(seq,
	206	(void __percpu **)net->mib.icmpv6msg_statistics);
	207	snmp6_seq_show_item(seq, (void __percpu **)net->mib.udp_stats_in6,
0c7ed677	208	snmp6_udp6_list);
7d720c3e	209	snmp6_seq_show_item(seq, (void __percpu **)net->mib.udplite_stats_in6,
be713a44	210	snmp6_udplite6_list);
1da177e4 LT	211	return 0;
	212	}
	213
1da177e4 LT	214	static int snmp6_seq_open(struct inode inode, struct file file)
1da177e4 LT	215	{
2b4209e4	216	return single_open_net(inode, file, snmp6_seq_show);
1da177e4 LT	217	}
1da177e4 LT	218
9a32144e	219	static const struct file_operations snmp6_seq_fops = {
1da177e4 LT	220	.owner = THIS_MODULE,
	221	.open = snmp6_seq_open,
	222	.read = seq_read,
	223	.llseek = seq_lseek,
2b4209e4	224	.release = single_release_net,
1da177e4 LT	225	};
1da177e4 LT	226
7b43ccec DL	227	static int snmp6_dev_seq_show(struct seq_file seq, void v)
	228	{
	229	struct inet6_dev idev = (struct inet6_dev )seq->private;
	230
	231	seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
7d720c3e TH	232	snmp6_seq_show_item(seq, (void __percpu **)idev->stats.ipv6,
	233	snmp6_ipstats_list);
	234	snmp6_seq_show_item(seq, (void __percpu **)idev->stats.icmpv6,
	235	snmp6_icmp6_list);
	236	snmp6_seq_show_icmpv6msg(seq, (void __percpu **)idev->stats.icmpv6msg);
7b43ccec DL	237	return 0;
	238	}
	239
	240	static int snmp6_dev_seq_open(struct inode inode, struct file file)
	241	{
	242	return single_open(file, snmp6_dev_seq_show, PDE(inode)->data);
	243	}
	244
	245	static const struct file_operations snmp6_dev_seq_fops = {
	246	.owner = THIS_MODULE,
	247	.open = snmp6_dev_seq_open,
	248	.read = seq_read,
	249	.llseek = seq_lseek,
	250	.release = single_release,
	251	};
	252
1da177e4 LT	253	int snmp6_register_dev(struct inet6_dev *idev)
	254	{
	255	struct proc_dir_entry *p;
835bcc04	256	struct net *net;
1da177e4 LT	257
	258	if (!idev \|\| !idev->dev)
	259	return -EINVAL;
	260
835bcc04	261	net = dev_net(idev->dev);
835bcc04	262	if (!net->mib.proc_net_devsnmp6)
1da177e4 LT	263	return -ENOENT;
1da177e4 LT	264
0bb53a66	265	p = proc_create_data(idev->dev->name, S_IRUGO,
7b43ccec DL	266	net->mib.proc_net_devsnmp6,
7b43ccec DL	267	&snmp6_dev_seq_fops, idev);
1da177e4 LT	268	if (!p)
	269	return -ENOMEM;
	270
1da177e4 LT	271	idev->stats.proc_dir_entry = p;
	272	return 0;
	273	}
	274
	275	int snmp6_unregister_dev(struct inet6_dev *idev)
	276	{
835bcc04 DL	277	struct net *net = dev_net(idev->dev);
835bcc04 DL	278	if (!net->mib.proc_net_devsnmp6)
1da177e4	279	return -ENOENT;
c3f6c21d	280	if (!idev->stats.proc_dir_entry)
1da177e4 LT	281	return -EINVAL;
1da177e4 LT	282	remove_proc_entry(idev->stats.proc_dir_entry->name,
835bcc04	283	net->mib.proc_net_devsnmp6);
5632c515	284	idev->stats.proc_dir_entry = NULL;
1da177e4 LT	285	return 0;
	286	}
	287
2c8c1e72	288	static int __net_init ipv6_proc_init_net(struct net *net)
d0538ca3 PE	289	{
	290	if (!proc_net_fops_create(net, "sockstat6", S_IRUGO,
	291	&sockstat6_seq_fops))
	292	return -ENOMEM;
06f38527 DL	293
	294	if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops))
	295	goto proc_snmp6_fail;
	296
	297	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
	298	if (!net->mib.proc_net_devsnmp6)
	299	goto proc_dev_snmp6_fail;
d0538ca3	300	return 0;
06f38527 DL	301
	302	proc_snmp6_fail:
	303	proc_net_remove(net, "sockstat6");
	304	proc_dev_snmp6_fail:
	305	proc_net_remove(net, "dev_snmp6");
	306	return -ENOMEM;
d0538ca3 PE	307	}
d0538ca3 PE	308
2c8c1e72	309	static void __net_exit ipv6_proc_exit_net(struct net *net)
d0538ca3 PE	310	{
d0538ca3 PE	311	proc_net_remove(net, "sockstat6");
06f38527 DL	312	proc_net_remove(net, "dev_snmp6");
06f38527 DL	313	proc_net_remove(net, "snmp6");
d0538ca3 PE	314	}
	315
	316	static struct pernet_operations ipv6_proc_ops = {
	317	.init = ipv6_proc_init_net,
	318	.exit = ipv6_proc_exit_net,
	319	};
	320
1da177e4 LT	321	int __init ipv6_misc_proc_init(void)
1da177e4 LT	322	{
06f38527	323	return register_pernet_subsys(&ipv6_proc_ops);
1da177e4 LT	324	}
	325
	326	void ipv6_misc_proc_exit(void)
	327	{
d0538ca3	328	unregister_pernet_subsys(&ipv6_proc_ops);
1da177e4 LT	329	}
1da177e4 LT	330