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 (davem@caip.rutgers.edu) |
11 | * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | |
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> |
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) |
33 | { | |
dfb12eb7 PE |
34 | struct net *net = seq->private; |
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), |
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), |
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), |
140 | SNMP_MIB_ITEM("UdpLite6SndbufErrors", UDP_MIB_SNDBUFERRORS), | |
ba4e58ec GR |
141 | SNMP_MIB_SENTINEL |
142 | }; | |
143 | ||
be281e55 ED |
144 | /* can be called either with percpu mib (pcpumib != NULL), |
145 | * or shared one (smib != NULL) | |
146 | */ | |
147 | static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void __percpu **pcpumib, | |
148 | atomic_long_t *smib) | |
14878f75 | 149 | { |
5ece6c2d | 150 | char name[32]; |
14878f75 DS |
151 | int i; |
152 | ||
153 | /* print by name -- deprecated items */ | |
154 | for (i = 0; i < ICMP6MSG_MIB_MAX; i++) { | |
155 | int icmptype; | |
36cbd3dc | 156 | const char *p; |
14878f75 DS |
157 | |
158 | icmptype = i & 0xff; | |
159 | p = icmp6type2name[icmptype]; | |
160 | if (!p) /* don't print un-named types here */ | |
161 | continue; | |
5ece6c2d | 162 | snprintf(name, sizeof(name), "Icmp6%s%s", |
14878f75 DS |
163 | i & 0x100 ? "Out" : "In", p); |
164 | seq_printf(seq, "%-32s\t%lu\n", name, | |
be281e55 | 165 | pcpumib ? snmp_fold_field(pcpumib, i) : atomic_long_read(smib + i)); |
14878f75 DS |
166 | } |
167 | ||
168 | /* print by number (nonzero only) - ICMPMsgStat format */ | |
169 | for (i = 0; i < ICMP6MSG_MIB_MAX; i++) { | |
170 | unsigned long val; | |
171 | ||
be281e55 | 172 | val = pcpumib ? snmp_fold_field(pcpumib, i) : atomic_long_read(smib + i); |
14878f75 DS |
173 | if (!val) |
174 | continue; | |
5ece6c2d | 175 | snprintf(name, sizeof(name), "Icmp6%sType%u", |
14878f75 DS |
176 | i & 0x100 ? "Out" : "In", i & 0xff); |
177 | seq_printf(seq, "%-32s\t%lu\n", name, val); | |
178 | } | |
14878f75 DS |
179 | } |
180 | ||
be281e55 ED |
181 | /* can be called either with percpu mib (pcpumib != NULL), |
182 | * or shared one (smib != NULL) | |
183 | */ | |
184 | static void snmp6_seq_show_item(struct seq_file *seq, void __percpu **pcpumib, | |
185 | atomic_long_t *smib, | |
5833929c | 186 | const struct snmp_mib *itemlist) |
1da177e4 LT |
187 | { |
188 | int i; | |
be281e55 | 189 | unsigned long val; |
4ce3c183 | 190 | |
be281e55 ED |
191 | for (i = 0; itemlist[i].name; i++) { |
192 | val = pcpumib ? | |
193 | snmp_fold_field(pcpumib, itemlist[i].entry) : | |
194 | atomic_long_read(smib + itemlist[i].entry); | |
195 | seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, val); | |
196 | } | |
1da177e4 LT |
197 | } |
198 | ||
4ce3c183 ED |
199 | static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu **mib, |
200 | const struct snmp_mib *itemlist, size_t syncpoff) | |
201 | { | |
202 | int i; | |
203 | ||
204 | for (i = 0; itemlist[i].name; i++) | |
205 | seq_printf(seq, "%-32s\t%llu\n", itemlist[i].name, | |
206 | snmp_fold_field64(mib, itemlist[i].entry, syncpoff)); | |
207 | } | |
208 | ||
1da177e4 LT |
209 | static int snmp6_seq_show(struct seq_file *seq, void *v) |
210 | { | |
2b4209e4 DL |
211 | struct net *net = (struct net *)seq->private; |
212 | ||
4ce3c183 ED |
213 | snmp6_seq_show_item64(seq, (void __percpu **)net->mib.ipv6_statistics, |
214 | snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp)); | |
7d720c3e | 215 | snmp6_seq_show_item(seq, (void __percpu **)net->mib.icmpv6_statistics, |
be281e55 | 216 | NULL, snmp6_icmp6_list); |
7d720c3e | 217 | snmp6_seq_show_icmpv6msg(seq, |
be281e55 | 218 | (void __percpu **)net->mib.icmpv6msg_statistics, NULL); |
7d720c3e | 219 | snmp6_seq_show_item(seq, (void __percpu **)net->mib.udp_stats_in6, |
be281e55 | 220 | NULL, snmp6_udp6_list); |
7d720c3e | 221 | snmp6_seq_show_item(seq, (void __percpu **)net->mib.udplite_stats_in6, |
be281e55 | 222 | NULL, snmp6_udplite6_list); |
1da177e4 LT |
223 | return 0; |
224 | } | |
225 | ||
1da177e4 LT |
226 | static int snmp6_seq_open(struct inode *inode, struct file *file) |
227 | { | |
2b4209e4 | 228 | return single_open_net(inode, file, snmp6_seq_show); |
1da177e4 LT |
229 | } |
230 | ||
9a32144e | 231 | static const struct file_operations snmp6_seq_fops = { |
1da177e4 LT |
232 | .owner = THIS_MODULE, |
233 | .open = snmp6_seq_open, | |
234 | .read = seq_read, | |
235 | .llseek = seq_lseek, | |
2b4209e4 | 236 | .release = single_release_net, |
1da177e4 LT |
237 | }; |
238 | ||
7b43ccec DL |
239 | static int snmp6_dev_seq_show(struct seq_file *seq, void *v) |
240 | { | |
241 | struct inet6_dev *idev = (struct inet6_dev *)seq->private; | |
242 | ||
243 | seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex); | |
be281e55 | 244 | snmp6_seq_show_item(seq, (void __percpu **)idev->stats.ipv6, NULL, |
7d720c3e | 245 | snmp6_ipstats_list); |
be281e55 | 246 | snmp6_seq_show_item(seq, NULL, idev->stats.icmpv6dev->mibs, |
7d720c3e | 247 | snmp6_icmp6_list); |
be281e55 | 248 | snmp6_seq_show_icmpv6msg(seq, NULL, idev->stats.icmpv6msgdev->mibs); |
7b43ccec DL |
249 | return 0; |
250 | } | |
251 | ||
252 | static int snmp6_dev_seq_open(struct inode *inode, struct file *file) | |
253 | { | |
254 | return single_open(file, snmp6_dev_seq_show, PDE(inode)->data); | |
255 | } | |
256 | ||
257 | static const struct file_operations snmp6_dev_seq_fops = { | |
258 | .owner = THIS_MODULE, | |
259 | .open = snmp6_dev_seq_open, | |
260 | .read = seq_read, | |
261 | .llseek = seq_lseek, | |
262 | .release = single_release, | |
263 | }; | |
264 | ||
1da177e4 LT |
265 | int snmp6_register_dev(struct inet6_dev *idev) |
266 | { | |
267 | struct proc_dir_entry *p; | |
835bcc04 | 268 | struct net *net; |
1da177e4 LT |
269 | |
270 | if (!idev || !idev->dev) | |
271 | return -EINVAL; | |
272 | ||
835bcc04 | 273 | net = dev_net(idev->dev); |
835bcc04 | 274 | if (!net->mib.proc_net_devsnmp6) |
1da177e4 LT |
275 | return -ENOENT; |
276 | ||
0bb53a66 | 277 | p = proc_create_data(idev->dev->name, S_IRUGO, |
7b43ccec DL |
278 | net->mib.proc_net_devsnmp6, |
279 | &snmp6_dev_seq_fops, idev); | |
1da177e4 LT |
280 | if (!p) |
281 | return -ENOMEM; | |
282 | ||
1da177e4 LT |
283 | idev->stats.proc_dir_entry = p; |
284 | return 0; | |
285 | } | |
286 | ||
287 | int snmp6_unregister_dev(struct inet6_dev *idev) | |
288 | { | |
835bcc04 DL |
289 | struct net *net = dev_net(idev->dev); |
290 | if (!net->mib.proc_net_devsnmp6) | |
1da177e4 | 291 | return -ENOENT; |
c3f6c21d | 292 | if (!idev->stats.proc_dir_entry) |
1da177e4 LT |
293 | return -EINVAL; |
294 | remove_proc_entry(idev->stats.proc_dir_entry->name, | |
835bcc04 | 295 | net->mib.proc_net_devsnmp6); |
5632c515 | 296 | idev->stats.proc_dir_entry = NULL; |
1da177e4 LT |
297 | return 0; |
298 | } | |
299 | ||
2c8c1e72 | 300 | static int __net_init ipv6_proc_init_net(struct net *net) |
d0538ca3 PE |
301 | { |
302 | if (!proc_net_fops_create(net, "sockstat6", S_IRUGO, | |
303 | &sockstat6_seq_fops)) | |
304 | return -ENOMEM; | |
06f38527 DL |
305 | |
306 | if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops)) | |
307 | goto proc_snmp6_fail; | |
308 | ||
309 | net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net); | |
310 | if (!net->mib.proc_net_devsnmp6) | |
311 | goto proc_dev_snmp6_fail; | |
d0538ca3 | 312 | return 0; |
06f38527 DL |
313 | |
314 | proc_snmp6_fail: | |
315 | proc_net_remove(net, "sockstat6"); | |
316 | proc_dev_snmp6_fail: | |
317 | proc_net_remove(net, "dev_snmp6"); | |
318 | return -ENOMEM; | |
d0538ca3 PE |
319 | } |
320 | ||
2c8c1e72 | 321 | static void __net_exit ipv6_proc_exit_net(struct net *net) |
d0538ca3 PE |
322 | { |
323 | proc_net_remove(net, "sockstat6"); | |
06f38527 DL |
324 | proc_net_remove(net, "dev_snmp6"); |
325 | proc_net_remove(net, "snmp6"); | |
d0538ca3 PE |
326 | } |
327 | ||
328 | static struct pernet_operations ipv6_proc_ops = { | |
329 | .init = ipv6_proc_init_net, | |
330 | .exit = ipv6_proc_exit_net, | |
331 | }; | |
332 | ||
1da177e4 LT |
333 | int __init ipv6_misc_proc_init(void) |
334 | { | |
06f38527 | 335 | return register_pernet_subsys(&ipv6_proc_ops); |
1da177e4 LT |
336 | } |
337 | ||
338 | void ipv6_misc_proc_exit(void) | |
339 | { | |
d0538ca3 | 340 | unregister_pernet_subsys(&ipv6_proc_ops); |
1da177e4 LT |
341 | } |
342 |