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/sched.h>
21 #include <linux/socket.h>
22 #include <linux/net.h>
23 #include <linux/ipv6.h>
24 #include <linux/proc_fs.h>
25 #include <linux/seq_file.h>
26 #include <linux/stddef.h>
29 #include <net/transp_v6.h>
33 static struct proc_dir_entry *proc_net_devsnmp6;
35 static int fold_prot_inuse(struct proto *proto)
40 for_each_possible_cpu(cpu)
41 res += proto->stats[cpu].inuse;
46 static int sockstat6_seq_show(struct seq_file *seq, void *v)
48 seq_printf(seq, "TCP6: inuse %d\n",
49 fold_prot_inuse(&tcpv6_prot));
50 seq_printf(seq, "UDP6: inuse %d\n",
51 fold_prot_inuse(&udpv6_prot));
52 seq_printf(seq, "UDPLITE6: inuse %d\n",
53 fold_prot_inuse(&udplitev6_prot));
54 seq_printf(seq, "RAW6: inuse %d\n",
55 fold_prot_inuse(&rawv6_prot));
56 seq_printf(seq, "FRAG6: inuse %d memory %d\n",
57 ip6_frag_nqueues, atomic_read(&ip6_frag_mem));
61 static struct snmp_mib snmp6_ipstats_list[] = {
62 /* ipv6 mib according to RFC 2465 */
63 SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES),
64 SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
65 SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
66 SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
67 SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
68 SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
69 SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
70 SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
71 SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
72 SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
73 SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS),
74 SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
75 SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
76 SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
77 SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
78 SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
79 SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
80 SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
81 SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
82 SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
83 SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
84 SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
88 static struct snmp_mib snmp6_icmp6_list[] = {
89 /* icmpv6 mib according to RFC 2466
91 Exceptions: {In|Out}AdminProhibs are removed, because I see
92 no good reasons to account them separately
93 of another dest.unreachs.
94 OutErrs is zero identically.
96 OutRouterAdvertisements too.
97 OutGroupMembQueries too.
99 SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
100 SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
101 SNMP_MIB_ITEM("Icmp6InDestUnreachs", ICMP6_MIB_INDESTUNREACHS),
102 SNMP_MIB_ITEM("Icmp6InPktTooBigs", ICMP6_MIB_INPKTTOOBIGS),
103 SNMP_MIB_ITEM("Icmp6InTimeExcds", ICMP6_MIB_INTIMEEXCDS),
104 SNMP_MIB_ITEM("Icmp6InParmProblems", ICMP6_MIB_INPARMPROBLEMS),
105 SNMP_MIB_ITEM("Icmp6InEchos", ICMP6_MIB_INECHOS),
106 SNMP_MIB_ITEM("Icmp6InEchoReplies", ICMP6_MIB_INECHOREPLIES),
107 SNMP_MIB_ITEM("Icmp6InGroupMembQueries", ICMP6_MIB_INGROUPMEMBQUERIES),
108 SNMP_MIB_ITEM("Icmp6InGroupMembResponses", ICMP6_MIB_INGROUPMEMBRESPONSES),
109 SNMP_MIB_ITEM("Icmp6InGroupMembReductions", ICMP6_MIB_INGROUPMEMBREDUCTIONS),
110 SNMP_MIB_ITEM("Icmp6InRouterSolicits", ICMP6_MIB_INROUTERSOLICITS),
111 SNMP_MIB_ITEM("Icmp6InRouterAdvertisements", ICMP6_MIB_INROUTERADVERTISEMENTS),
112 SNMP_MIB_ITEM("Icmp6InNeighborSolicits", ICMP6_MIB_INNEIGHBORSOLICITS),
113 SNMP_MIB_ITEM("Icmp6InNeighborAdvertisements", ICMP6_MIB_INNEIGHBORADVERTISEMENTS),
114 SNMP_MIB_ITEM("Icmp6InRedirects", ICMP6_MIB_INREDIRECTS),
115 SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
116 SNMP_MIB_ITEM("Icmp6OutDestUnreachs", ICMP6_MIB_OUTDESTUNREACHS),
117 SNMP_MIB_ITEM("Icmp6OutPktTooBigs", ICMP6_MIB_OUTPKTTOOBIGS),
118 SNMP_MIB_ITEM("Icmp6OutTimeExcds", ICMP6_MIB_OUTTIMEEXCDS),
119 SNMP_MIB_ITEM("Icmp6OutParmProblems", ICMP6_MIB_OUTPARMPROBLEMS),
120 SNMP_MIB_ITEM("Icmp6OutEchoReplies", ICMP6_MIB_OUTECHOREPLIES),
121 SNMP_MIB_ITEM("Icmp6OutRouterSolicits", ICMP6_MIB_OUTROUTERSOLICITS),
122 SNMP_MIB_ITEM("Icmp6OutNeighborSolicits", ICMP6_MIB_OUTNEIGHBORSOLICITS),
123 SNMP_MIB_ITEM("Icmp6OutNeighborAdvertisements", ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS),
124 SNMP_MIB_ITEM("Icmp6OutRedirects", ICMP6_MIB_OUTREDIRECTS),
125 SNMP_MIB_ITEM("Icmp6OutGroupMembResponses", ICMP6_MIB_OUTGROUPMEMBRESPONSES),
126 SNMP_MIB_ITEM("Icmp6OutGroupMembReductions", ICMP6_MIB_OUTGROUPMEMBREDUCTIONS),
130 static struct snmp_mib snmp6_udp6_list[] = {
131 SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
132 SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
133 SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
134 SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
138 static struct snmp_mib snmp6_udplite6_list[] = {
139 SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
140 SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
141 SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
142 SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
147 fold_field(void *mib[], int offt)
149 unsigned long res = 0;
152 for_each_possible_cpu(i) {
153 res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
154 res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
160 snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
163 for (i=0; itemlist[i].name; i++)
164 seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
165 fold_field(mib, itemlist[i].entry));
168 static int snmp6_seq_show(struct seq_file *seq, void *v)
170 struct inet6_dev *idev = (struct inet6_dev *)seq->private;
173 seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
174 snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
175 snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
177 snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list);
178 snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list);
179 snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list);
180 snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list);
185 static int sockstat6_seq_open(struct inode *inode, struct file *file)
187 return single_open(file, sockstat6_seq_show, NULL);
190 static const struct file_operations sockstat6_seq_fops = {
191 .owner = THIS_MODULE,
192 .open = sockstat6_seq_open,
195 .release = single_release,
198 static int snmp6_seq_open(struct inode *inode, struct file *file)
200 return single_open(file, snmp6_seq_show, PDE(inode)->data);
203 static const struct file_operations snmp6_seq_fops = {
204 .owner = THIS_MODULE,
205 .open = snmp6_seq_open,
208 .release = single_release,
211 int snmp6_register_dev(struct inet6_dev *idev)
213 struct proc_dir_entry *p;
215 if (!idev || !idev->dev)
218 if (!proc_net_devsnmp6)
221 p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6);
226 p->proc_fops = &snmp6_seq_fops;
228 idev->stats.proc_dir_entry = p;
232 int snmp6_unregister_dev(struct inet6_dev *idev)
234 if (!proc_net_devsnmp6)
236 if (!idev || !idev->stats.proc_dir_entry)
238 remove_proc_entry(idev->stats.proc_dir_entry->name,
243 int __init ipv6_misc_proc_init(void)
247 if (!proc_net_fops_create("snmp6", S_IRUGO, &snmp6_seq_fops))
248 goto proc_snmp6_fail;
250 proc_net_devsnmp6 = proc_mkdir("dev_snmp6", proc_net);
251 if (!proc_net_devsnmp6)
252 goto proc_dev_snmp6_fail;
254 if (!proc_net_fops_create("sockstat6", S_IRUGO, &sockstat6_seq_fops))
255 goto proc_sockstat6_fail;
260 proc_net_remove("dev_snmp6");
262 proc_net_remove("snmp6");
268 void ipv6_misc_proc_exit(void)
270 proc_net_remove("sockstat6");
271 proc_net_remove("dev_snmp6");
272 proc_net_remove("snmp6");
275 #else /* CONFIG_PROC_FS */
278 int snmp6_register_dev(struct inet6_dev *idev)
283 int snmp6_unregister_dev(struct inet6_dev *idev)
287 #endif /* CONFIG_PROC_FS */
289 int snmp6_alloc_dev(struct inet6_dev *idev)
293 if (!idev || !idev->dev)
296 if (snmp6_mib_init((void **)idev->stats.ipv6, sizeof(struct ipstats_mib),
297 __alignof__(struct ipstats_mib)) < 0)
299 if (snmp6_mib_init((void **)idev->stats.icmpv6, sizeof(struct icmpv6_mib),
300 __alignof__(struct icmpv6_mib)) < 0)
306 snmp6_mib_free((void **)idev->stats.ipv6);
311 int snmp6_free_dev(struct inet6_dev *idev)
313 snmp6_mib_free((void **)idev->stats.icmpv6);
314 snmp6_mib_free((void **)idev->stats.ipv6);