Commit | Line | Data |
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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 struct proc_dir_entry *proc_net_devsnmp6; |
33 | ||
1da177e4 LT |
34 | static int sockstat6_seq_show(struct seq_file *seq, void *v) |
35 | { | |
dfb12eb7 PE |
36 | struct net *net = seq->private; |
37 | ||
1da177e4 | 38 | seq_printf(seq, "TCP6: inuse %d\n", |
dfb12eb7 | 39 | sock_prot_inuse_get(net, &tcpv6_prot)); |
1da177e4 | 40 | seq_printf(seq, "UDP6: inuse %d\n", |
dfb12eb7 | 41 | sock_prot_inuse_get(net, &udpv6_prot)); |
ba4e58ec | 42 | seq_printf(seq, "UDPLITE6: inuse %d\n", |
dfb12eb7 | 43 | sock_prot_inuse_get(net, &udplitev6_prot)); |
1da177e4 | 44 | seq_printf(seq, "RAW6: inuse %d\n", |
dfb12eb7 | 45 | sock_prot_inuse_get(net, &rawv6_prot)); |
1da177e4 | 46 | seq_printf(seq, "FRAG6: inuse %d memory %d\n", |
dfb12eb7 | 47 | ip6_frag_nqueues(net), ip6_frag_mem(net)); |
1da177e4 LT |
48 | return 0; |
49 | } | |
50 | ||
51 | static struct snmp_mib snmp6_ipstats_list[] = { | |
52 | /* ipv6 mib according to RFC 2465 */ | |
53 | SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES), | |
54 | SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS), | |
55 | SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS), | |
56 | SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES), | |
57 | SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS), | |
58 | SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS), | |
59 | SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS), | |
60 | SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS), | |
61 | SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS), | |
62 | SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS), | |
63 | SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS), | |
64 | SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS), | |
65 | SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES), | |
66 | SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT), | |
67 | SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS), | |
68 | SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS), | |
69 | SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS), | |
70 | SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS), | |
71 | SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS), | |
72 | SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES), | |
73 | SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS), | |
74 | SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS), | |
75 | SNMP_MIB_SENTINEL | |
76 | }; | |
77 | ||
78 | static struct snmp_mib snmp6_icmp6_list[] = { | |
14878f75 | 79 | /* icmpv6 mib according to RFC 2466 */ |
1da177e4 LT |
80 | SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS), |
81 | SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS), | |
1da177e4 | 82 | SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS), |
1da177e4 LT |
83 | SNMP_MIB_SENTINEL |
84 | }; | |
85 | ||
14878f75 DS |
86 | /* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */ |
87 | static char *icmp6type2name[256] = { | |
88 | [ICMPV6_DEST_UNREACH] = "DestUnreachs", | |
89 | [ICMPV6_PKT_TOOBIG] = "PktTooBigs", | |
90 | [ICMPV6_TIME_EXCEED] = "TimeExcds", | |
91 | [ICMPV6_PARAMPROB] = "ParmProblems", | |
fa95c283 | 92 | [ICMPV6_ECHO_REQUEST] = "Echos", |
14878f75 DS |
93 | [ICMPV6_ECHO_REPLY] = "EchoReplies", |
94 | [ICMPV6_MGM_QUERY] = "GroupMembQueries", | |
95 | [ICMPV6_MGM_REPORT] = "GroupMembResponses", | |
96 | [ICMPV6_MGM_REDUCTION] = "GroupMembReductions", | |
97 | [ICMPV6_MLD2_REPORT] = "MLDv2Reports", | |
98 | [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements", | |
99 | [NDISC_ROUTER_SOLICITATION] = "RouterSolicits", | |
100 | [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements", | |
101 | [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits", | |
fa95c283 | 102 | [NDISC_REDIRECT] = "Redirects", |
14878f75 DS |
103 | }; |
104 | ||
105 | ||
1da177e4 LT |
106 | static struct snmp_mib snmp6_udp6_list[] = { |
107 | SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS), | |
108 | SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS), | |
109 | SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS), | |
110 | SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
111 | SNMP_MIB_SENTINEL | |
112 | }; | |
113 | ||
ba4e58ec GR |
114 | static struct snmp_mib snmp6_udplite6_list[] = { |
115 | SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS), | |
116 | SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS), | |
117 | SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS), | |
118 | SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
119 | SNMP_MIB_SENTINEL | |
120 | }; | |
121 | ||
14878f75 DS |
122 | static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib) |
123 | { | |
124 | static char name[32]; | |
125 | int i; | |
126 | ||
127 | /* print by name -- deprecated items */ | |
128 | for (i = 0; i < ICMP6MSG_MIB_MAX; i++) { | |
129 | int icmptype; | |
130 | char *p; | |
131 | ||
132 | icmptype = i & 0xff; | |
133 | p = icmp6type2name[icmptype]; | |
134 | if (!p) /* don't print un-named types here */ | |
135 | continue; | |
136 | (void) snprintf(name, sizeof(name)-1, "Icmp6%s%s", | |
137 | i & 0x100 ? "Out" : "In", p); | |
138 | seq_printf(seq, "%-32s\t%lu\n", name, | |
139 | snmp_fold_field(mib, i)); | |
140 | } | |
141 | ||
142 | /* print by number (nonzero only) - ICMPMsgStat format */ | |
143 | for (i = 0; i < ICMP6MSG_MIB_MAX; i++) { | |
144 | unsigned long val; | |
145 | ||
146 | val = snmp_fold_field(mib, i); | |
147 | if (!val) | |
148 | continue; | |
149 | (void) snprintf(name, sizeof(name)-1, "Icmp6%sType%u", | |
150 | i & 0x100 ? "Out" : "In", i & 0xff); | |
151 | seq_printf(seq, "%-32s\t%lu\n", name, val); | |
152 | } | |
153 | return; | |
154 | } | |
155 | ||
1da177e4 LT |
156 | static inline void |
157 | snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist) | |
158 | { | |
159 | int i; | |
160 | for (i=0; itemlist[i].name; i++) | |
1ab1457c | 161 | seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, |
7f7d9a6b | 162 | snmp_fold_field(mib, itemlist[i].entry)); |
1da177e4 LT |
163 | } |
164 | ||
165 | static int snmp6_seq_show(struct seq_file *seq, void *v) | |
166 | { | |
167 | struct inet6_dev *idev = (struct inet6_dev *)seq->private; | |
168 | ||
169 | if (idev) { | |
170 | seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex); | |
a11d206d | 171 | snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list); |
1da177e4 | 172 | snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list); |
14878f75 | 173 | snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg); |
1da177e4 LT |
174 | } else { |
175 | snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list); | |
176 | snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list); | |
14878f75 | 177 | snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics); |
1da177e4 | 178 | snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list); |
ba4e58ec | 179 | snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list); |
1da177e4 LT |
180 | } |
181 | return 0; | |
182 | } | |
183 | ||
184 | static int sockstat6_seq_open(struct inode *inode, struct file *file) | |
185 | { | |
de05c557 | 186 | return single_open_net(inode, file, sockstat6_seq_show); |
dfb12eb7 PE |
187 | } |
188 | ||
9a32144e | 189 | static const struct file_operations sockstat6_seq_fops = { |
1da177e4 LT |
190 | .owner = THIS_MODULE, |
191 | .open = sockstat6_seq_open, | |
192 | .read = seq_read, | |
193 | .llseek = seq_lseek, | |
b6fcbdb4 | 194 | .release = single_release_net, |
1da177e4 LT |
195 | }; |
196 | ||
197 | static int snmp6_seq_open(struct inode *inode, struct file *file) | |
198 | { | |
199 | return single_open(file, snmp6_seq_show, PDE(inode)->data); | |
200 | } | |
201 | ||
9a32144e | 202 | static const struct file_operations snmp6_seq_fops = { |
1da177e4 LT |
203 | .owner = THIS_MODULE, |
204 | .open = snmp6_seq_open, | |
205 | .read = seq_read, | |
206 | .llseek = seq_lseek, | |
207 | .release = single_release, | |
208 | }; | |
209 | ||
210 | int snmp6_register_dev(struct inet6_dev *idev) | |
211 | { | |
212 | struct proc_dir_entry *p; | |
213 | ||
214 | if (!idev || !idev->dev) | |
215 | return -EINVAL; | |
216 | ||
721499e8 | 217 | if (!net_eq(dev_net(idev->dev), &init_net)) |
300bf591 DL |
218 | return 0; |
219 | ||
1da177e4 LT |
220 | if (!proc_net_devsnmp6) |
221 | return -ENOENT; | |
222 | ||
0bb53a66 DL |
223 | p = proc_create_data(idev->dev->name, S_IRUGO, |
224 | proc_net_devsnmp6, &snmp6_seq_fops, idev); | |
1da177e4 LT |
225 | if (!p) |
226 | return -ENOMEM; | |
227 | ||
1da177e4 LT |
228 | idev->stats.proc_dir_entry = p; |
229 | return 0; | |
230 | } | |
231 | ||
232 | int snmp6_unregister_dev(struct inet6_dev *idev) | |
233 | { | |
234 | if (!proc_net_devsnmp6) | |
235 | return -ENOENT; | |
236 | if (!idev || !idev->stats.proc_dir_entry) | |
237 | return -EINVAL; | |
238 | remove_proc_entry(idev->stats.proc_dir_entry->name, | |
239 | proc_net_devsnmp6); | |
5632c515 | 240 | idev->stats.proc_dir_entry = NULL; |
1da177e4 LT |
241 | return 0; |
242 | } | |
243 | ||
d0538ca3 PE |
244 | static int ipv6_proc_init_net(struct net *net) |
245 | { | |
246 | if (!proc_net_fops_create(net, "sockstat6", S_IRUGO, | |
247 | &sockstat6_seq_fops)) | |
248 | return -ENOMEM; | |
249 | return 0; | |
250 | } | |
251 | ||
252 | static void ipv6_proc_exit_net(struct net *net) | |
253 | { | |
254 | proc_net_remove(net, "sockstat6"); | |
255 | } | |
256 | ||
257 | static struct pernet_operations ipv6_proc_ops = { | |
258 | .init = ipv6_proc_init_net, | |
259 | .exit = ipv6_proc_exit_net, | |
260 | }; | |
261 | ||
1da177e4 LT |
262 | int __init ipv6_misc_proc_init(void) |
263 | { | |
264 | int rc = 0; | |
265 | ||
d0538ca3 PE |
266 | if (register_pernet_subsys(&ipv6_proc_ops)) |
267 | goto proc_net_fail; | |
268 | ||
457c4cbc | 269 | if (!proc_net_fops_create(&init_net, "snmp6", S_IRUGO, &snmp6_seq_fops)) |
1da177e4 LT |
270 | goto proc_snmp6_fail; |
271 | ||
457c4cbc | 272 | proc_net_devsnmp6 = proc_mkdir("dev_snmp6", init_net.proc_net); |
1da177e4 LT |
273 | if (!proc_net_devsnmp6) |
274 | goto proc_dev_snmp6_fail; | |
1da177e4 LT |
275 | out: |
276 | return rc; | |
277 | ||
1da177e4 | 278 | proc_dev_snmp6_fail: |
457c4cbc | 279 | proc_net_remove(&init_net, "snmp6"); |
1da177e4 | 280 | proc_snmp6_fail: |
d0538ca3 PE |
281 | unregister_pernet_subsys(&ipv6_proc_ops); |
282 | proc_net_fail: | |
1da177e4 LT |
283 | rc = -ENOMEM; |
284 | goto out; | |
285 | } | |
286 | ||
287 | void ipv6_misc_proc_exit(void) | |
288 | { | |
457c4cbc EB |
289 | proc_net_remove(&init_net, "sockstat6"); |
290 | proc_net_remove(&init_net, "dev_snmp6"); | |
291 | proc_net_remove(&init_net, "snmp6"); | |
d0538ca3 | 292 | unregister_pernet_subsys(&ipv6_proc_ops); |
1da177e4 LT |
293 | } |
294 |