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.
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.
10 * Version: $Id: proc.c,v 1.17 2002/02/01 22:01:04 davem Exp $
12 * Authors: David S. Miller (davem@caip.rutgers.edu)
13 * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
20 #include <linux/socket.h>
21 #include <linux/net.h>
22 #include <linux/ipv6.h>
23 #include <linux/proc_fs.h>
24 #include <linux/seq_file.h>
25 #include <linux/stddef.h>
26 #include <net/net_namespace.h>
31 #include <net/transp_v6.h>
34 static struct proc_dir_entry *proc_net_devsnmp6;
36 static int sockstat6_seq_show(struct seq_file *seq, void *v)
38 seq_printf(seq, "TCP6: inuse %d\n",
39 sock_prot_inuse_get(&tcpv6_prot));
40 seq_printf(seq, "UDP6: inuse %d\n",
41 sock_prot_inuse_get(&udpv6_prot));
42 #ifdef CONFIG_IP_UDPLITE
43 seq_printf(seq, "UDPLITE6: inuse %d\n",
44 sock_prot_inuse_get(&udplitev6_prot));
46 seq_printf(seq, "RAW6: inuse %d\n",
47 sock_prot_inuse_get(&rawv6_prot));
48 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
49 ip6_frag_nqueues(&init_net), ip6_frag_mem(&init_net));
53 static struct snmp_mib snmp6_ipstats_list[] = {
54 /* ipv6 mib according to RFC 2465 */
55 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
56 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
57 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
58 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
59 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
60 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
61 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
62 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
63 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
64 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
65 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
66 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
67 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
68 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
69 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
70 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
71 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
72 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
73 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
74 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
75 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
76 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
80 static struct snmp_mib snmp6_icmp6_list[] = {
81 /* icmpv6 mib according to RFC 2466 */
82 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
83 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
84 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
88 /* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
89 static char *icmp6type2name[256] = {
90 [ICMPV6_DEST_UNREACH] = "DestUnreachs",
91 [ICMPV6_PKT_TOOBIG] = "PktTooBigs",
92 [ICMPV6_TIME_EXCEED] = "TimeExcds",
93 [ICMPV6_PARAMPROB] = "ParmProblems",
94 [ICMPV6_ECHO_REQUEST] = "Echos",
95 [ICMPV6_ECHO_REPLY] = "EchoReplies",
96 [ICMPV6_MGM_QUERY] = "GroupMembQueries",
97 [ICMPV6_MGM_REPORT] = "GroupMembResponses",
98 [ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
99 [ICMPV6_MLD2_REPORT] = "MLDv2Reports",
100 [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
101 [NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
102 [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
103 [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
104 [NDISC_REDIRECT] = "Redirects",
108 static struct snmp_mib snmp6_udp6_list[] = {
109 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
110 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
111 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
112 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
116 #ifdef CONFIG_IP_UDPLITE
117 static struct snmp_mib snmp6_udplite6_list[] = {
118 SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
119 SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
120 SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
121 SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
126 static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib)
128 static char name[32];
131 /* print by name -- deprecated items */
132 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
137 p = icmp6type2name[icmptype];
138 if (!p) /* don't print un-named types here */
140 (void) snprintf(name, sizeof(name)-1, "Icmp6%s%s",
141 i & 0x100 ? "Out" : "In", p);
142 seq_printf(seq, "%-32s\t%lu\n", name,
143 snmp_fold_field(mib, i));
146 /* print by number (nonzero only) - ICMPMsgStat format */
147 for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
150 val = snmp_fold_field(mib, i);
153 (void) snprintf(name, sizeof(name)-1, "Icmp6%sType%u",
154 i & 0x100 ? "Out" : "In", i & 0xff);
155 seq_printf(seq, "%-32s\t%lu\n", name, val);
161 snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
164 for (i=0; itemlist[i].name; i++)
165 seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
166 snmp_fold_field(mib, itemlist[i].entry));
169 static int snmp6_seq_show(struct seq_file *seq, void *v)
171 struct inet6_dev *idev = (struct inet6_dev *)seq->private;
174 seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
175 snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
176 snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
177 snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg);
179 snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list);
180 snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list);
181 snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics);
182 snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
183 #ifdef CONFIG_IP_UDPLITE
184 snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list);
190 static int sockstat6_seq_open(struct inode *inode, struct file *file)
192 return single_open(file, sockstat6_seq_show, NULL);
195 static const struct file_operations sockstat6_seq_fops = {
196 .owner = THIS_MODULE,
197 .open = sockstat6_seq_open,
200 .release = single_release,
203 static int snmp6_seq_open(struct inode *inode, struct file *file)
205 return single_open(file, snmp6_seq_show, PDE(inode)->data);
208 static const struct file_operations snmp6_seq_fops = {
209 .owner = THIS_MODULE,
210 .open = snmp6_seq_open,
213 .release = single_release,
216 int snmp6_register_dev(struct inet6_dev *idev)
218 struct proc_dir_entry *p;
220 if (!idev || !idev->dev)
223 if (idev->dev->nd_net != &init_net)
226 if (!proc_net_devsnmp6)
229 p = proc_create(idev->dev->name, S_IRUGO,
230 proc_net_devsnmp6, &snmp6_seq_fops);
236 idev->stats.proc_dir_entry = p;
240 int snmp6_unregister_dev(struct inet6_dev *idev)
242 if (!proc_net_devsnmp6)
244 if (!idev || !idev->stats.proc_dir_entry)
246 remove_proc_entry(idev->stats.proc_dir_entry->name,
248 idev->stats.proc_dir_entry = NULL;
252 int __init ipv6_misc_proc_init(void)
256 if (!proc_net_fops_create(&init_net, "snmp6", S_IRUGO, &snmp6_seq_fops))
257 goto proc_snmp6_fail;
259 proc_net_devsnmp6 = proc_mkdir("dev_snmp6", init_net.proc_net);
260 if (!proc_net_devsnmp6)
261 goto proc_dev_snmp6_fail;
263 if (!proc_net_fops_create(&init_net, "sockstat6", S_IRUGO, &sockstat6_seq_fops))
264 goto proc_sockstat6_fail;
269 proc_net_remove(&init_net, "dev_snmp6");
271 proc_net_remove(&init_net, "snmp6");
277 void ipv6_misc_proc_exit(void)
279 proc_net_remove(&init_net, "sockstat6");
280 proc_net_remove(&init_net, "dev_snmp6");
281 proc_net_remove(&init_net, "snmp6");