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 | * | |
10 | * Version: $Id: proc.c,v 1.17 2002/02/01 22:01:04 davem Exp $ | |
11 | * | |
12 | * Authors: David S. Miller (davem@caip.rutgers.edu) | |
13 | * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | |
14 | * | |
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. | |
19 | */ | |
1da177e4 LT |
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> | |
457c4cbc | 26 | #include <net/net_namespace.h> |
7f7d9a6b | 27 | #include <net/ip.h> |
1da177e4 LT |
28 | #include <net/sock.h> |
29 | #include <net/tcp.h> | |
30 | #include <net/transp_v6.h> | |
31 | #include <net/ipv6.h> | |
32 | ||
1da177e4 LT |
33 | static struct proc_dir_entry *proc_net_devsnmp6; |
34 | ||
35 | static int fold_prot_inuse(struct proto *proto) | |
36 | { | |
37 | int res = 0; | |
38 | int cpu; | |
39 | ||
6f912042 | 40 | for_each_possible_cpu(cpu) |
1da177e4 LT |
41 | res += proto->stats[cpu].inuse; |
42 | ||
43 | return res; | |
44 | } | |
45 | ||
46 | static int sockstat6_seq_show(struct seq_file *seq, void *v) | |
47 | { | |
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)); | |
ba4e58ec | 52 | seq_printf(seq, "UDPLITE6: inuse %d\n", |
1ab1457c | 53 | fold_prot_inuse(&udplitev6_prot)); |
1da177e4 LT |
54 | seq_printf(seq, "RAW6: inuse %d\n", |
55 | fold_prot_inuse(&rawv6_prot)); | |
56 | seq_printf(seq, "FRAG6: inuse %d memory %d\n", | |
7eb95156 | 57 | ip6_frag_nqueues(), ip6_frag_mem()); |
1da177e4 LT |
58 | return 0; |
59 | } | |
60 | ||
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), | |
85 | SNMP_MIB_SENTINEL | |
86 | }; | |
87 | ||
88 | static struct snmp_mib snmp6_icmp6_list[] = { | |
14878f75 | 89 | /* icmpv6 mib according to RFC 2466 */ |
1da177e4 LT |
90 | SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS), |
91 | SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS), | |
1da177e4 | 92 | SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS), |
1da177e4 LT |
93 | SNMP_MIB_SENTINEL |
94 | }; | |
95 | ||
14878f75 DS |
96 | /* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */ |
97 | static char *icmp6type2name[256] = { | |
98 | [ICMPV6_DEST_UNREACH] = "DestUnreachs", | |
99 | [ICMPV6_PKT_TOOBIG] = "PktTooBigs", | |
100 | [ICMPV6_TIME_EXCEED] = "TimeExcds", | |
101 | [ICMPV6_PARAMPROB] = "ParmProblems", | |
102 | [ICMPV6_ECHO_REQUEST] = "EchoRequest", | |
103 | [ICMPV6_ECHO_REPLY] = "EchoReplies", | |
104 | [ICMPV6_MGM_QUERY] = "GroupMembQueries", | |
105 | [ICMPV6_MGM_REPORT] = "GroupMembResponses", | |
106 | [ICMPV6_MGM_REDUCTION] = "GroupMembReductions", | |
107 | [ICMPV6_MLD2_REPORT] = "MLDv2Reports", | |
108 | [NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements", | |
109 | [NDISC_ROUTER_SOLICITATION] = "RouterSolicits", | |
110 | [NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements", | |
111 | [NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits", | |
112 | [NDISC_REDIRECT] = "NeighborRedirects", | |
113 | }; | |
114 | ||
115 | ||
1da177e4 LT |
116 | static struct snmp_mib snmp6_udp6_list[] = { |
117 | SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS), | |
118 | SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS), | |
119 | SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS), | |
120 | SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
121 | SNMP_MIB_SENTINEL | |
122 | }; | |
123 | ||
ba4e58ec GR |
124 | static struct snmp_mib snmp6_udplite6_list[] = { |
125 | SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS), | |
126 | SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS), | |
127 | SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS), | |
128 | SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
129 | SNMP_MIB_SENTINEL | |
130 | }; | |
131 | ||
14878f75 DS |
132 | static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib) |
133 | { | |
134 | static char name[32]; | |
135 | int i; | |
136 | ||
137 | /* print by name -- deprecated items */ | |
138 | for (i = 0; i < ICMP6MSG_MIB_MAX; i++) { | |
139 | int icmptype; | |
140 | char *p; | |
141 | ||
142 | icmptype = i & 0xff; | |
143 | p = icmp6type2name[icmptype]; | |
144 | if (!p) /* don't print un-named types here */ | |
145 | continue; | |
146 | (void) snprintf(name, sizeof(name)-1, "Icmp6%s%s", | |
147 | i & 0x100 ? "Out" : "In", p); | |
148 | seq_printf(seq, "%-32s\t%lu\n", name, | |
149 | snmp_fold_field(mib, i)); | |
150 | } | |
151 | ||
152 | /* print by number (nonzero only) - ICMPMsgStat format */ | |
153 | for (i = 0; i < ICMP6MSG_MIB_MAX; i++) { | |
154 | unsigned long val; | |
155 | ||
156 | val = snmp_fold_field(mib, i); | |
157 | if (!val) | |
158 | continue; | |
159 | (void) snprintf(name, sizeof(name)-1, "Icmp6%sType%u", | |
160 | i & 0x100 ? "Out" : "In", i & 0xff); | |
161 | seq_printf(seq, "%-32s\t%lu\n", name, val); | |
162 | } | |
163 | return; | |
164 | } | |
165 | ||
1da177e4 LT |
166 | static inline void |
167 | snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist) | |
168 | { | |
169 | int i; | |
170 | for (i=0; itemlist[i].name; i++) | |
1ab1457c | 171 | seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, |
7f7d9a6b | 172 | snmp_fold_field(mib, itemlist[i].entry)); |
1da177e4 LT |
173 | } |
174 | ||
175 | static int snmp6_seq_show(struct seq_file *seq, void *v) | |
176 | { | |
177 | struct inet6_dev *idev = (struct inet6_dev *)seq->private; | |
178 | ||
179 | if (idev) { | |
180 | seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex); | |
a11d206d | 181 | snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list); |
1da177e4 | 182 | snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list); |
14878f75 | 183 | snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg); |
1da177e4 LT |
184 | } else { |
185 | snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list); | |
186 | snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list); | |
14878f75 | 187 | snmp6_seq_show_icmpv6msg(seq, (void **)icmpv6msg_statistics); |
1da177e4 | 188 | snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list); |
ba4e58ec | 189 | snmp6_seq_show_item(seq, (void **)udplite_stats_in6, snmp6_udplite6_list); |
1da177e4 LT |
190 | } |
191 | return 0; | |
192 | } | |
193 | ||
194 | static int sockstat6_seq_open(struct inode *inode, struct file *file) | |
195 | { | |
196 | return single_open(file, sockstat6_seq_show, NULL); | |
197 | } | |
198 | ||
9a32144e | 199 | static const struct file_operations sockstat6_seq_fops = { |
1da177e4 LT |
200 | .owner = THIS_MODULE, |
201 | .open = sockstat6_seq_open, | |
202 | .read = seq_read, | |
203 | .llseek = seq_lseek, | |
204 | .release = single_release, | |
205 | }; | |
206 | ||
207 | static int snmp6_seq_open(struct inode *inode, struct file *file) | |
208 | { | |
209 | return single_open(file, snmp6_seq_show, PDE(inode)->data); | |
210 | } | |
211 | ||
9a32144e | 212 | static const struct file_operations snmp6_seq_fops = { |
1da177e4 LT |
213 | .owner = THIS_MODULE, |
214 | .open = snmp6_seq_open, | |
215 | .read = seq_read, | |
216 | .llseek = seq_lseek, | |
217 | .release = single_release, | |
218 | }; | |
219 | ||
220 | int snmp6_register_dev(struct inet6_dev *idev) | |
221 | { | |
222 | struct proc_dir_entry *p; | |
223 | ||
224 | if (!idev || !idev->dev) | |
225 | return -EINVAL; | |
226 | ||
227 | if (!proc_net_devsnmp6) | |
228 | return -ENOENT; | |
229 | ||
230 | p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6); | |
231 | if (!p) | |
232 | return -ENOMEM; | |
233 | ||
234 | p->data = idev; | |
235 | p->proc_fops = &snmp6_seq_fops; | |
236 | ||
237 | idev->stats.proc_dir_entry = p; | |
238 | return 0; | |
239 | } | |
240 | ||
241 | int snmp6_unregister_dev(struct inet6_dev *idev) | |
242 | { | |
243 | if (!proc_net_devsnmp6) | |
244 | return -ENOENT; | |
245 | if (!idev || !idev->stats.proc_dir_entry) | |
246 | return -EINVAL; | |
247 | remove_proc_entry(idev->stats.proc_dir_entry->name, | |
248 | proc_net_devsnmp6); | |
5632c515 | 249 | idev->stats.proc_dir_entry = NULL; |
1da177e4 LT |
250 | return 0; |
251 | } | |
252 | ||
253 | int __init ipv6_misc_proc_init(void) | |
254 | { | |
255 | int rc = 0; | |
256 | ||
457c4cbc | 257 | if (!proc_net_fops_create(&init_net, "snmp6", S_IRUGO, &snmp6_seq_fops)) |
1da177e4 LT |
258 | goto proc_snmp6_fail; |
259 | ||
457c4cbc | 260 | proc_net_devsnmp6 = proc_mkdir("dev_snmp6", init_net.proc_net); |
1da177e4 LT |
261 | if (!proc_net_devsnmp6) |
262 | goto proc_dev_snmp6_fail; | |
263 | ||
457c4cbc | 264 | if (!proc_net_fops_create(&init_net, "sockstat6", S_IRUGO, &sockstat6_seq_fops)) |
1da177e4 LT |
265 | goto proc_sockstat6_fail; |
266 | out: | |
267 | return rc; | |
268 | ||
269 | proc_sockstat6_fail: | |
457c4cbc | 270 | proc_net_remove(&init_net, "dev_snmp6"); |
1da177e4 | 271 | proc_dev_snmp6_fail: |
457c4cbc | 272 | proc_net_remove(&init_net, "snmp6"); |
1da177e4 LT |
273 | proc_snmp6_fail: |
274 | rc = -ENOMEM; | |
275 | goto out; | |
276 | } | |
277 | ||
278 | void ipv6_misc_proc_exit(void) | |
279 | { | |
457c4cbc EB |
280 | proc_net_remove(&init_net, "sockstat6"); |
281 | proc_net_remove(&init_net, "dev_snmp6"); | |
282 | proc_net_remove(&init_net, "snmp6"); | |
1da177e4 LT |
283 | } |
284 |