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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. It is mainly used for debugging and | |
8 | * statistics. | |
9 | * | |
1da177e4 LT |
10 | * Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
11 | * Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de> | |
12 | * Fred Baumgarten, <dc6iq@insu1.etec.uni-karlsruhe.de> | |
13 | * Erik Schoenfelder, <schoenfr@ibr.cs.tu-bs.de> | |
14 | * | |
15 | * Fixes: | |
16 | * Alan Cox : UDP sockets show the rxqueue/txqueue | |
17 | * using hint flag for the netinfo. | |
18 | * Pauline Middelink : identd support | |
19 | * Alan Cox : Make /proc safer. | |
20 | * Erik Schoenfelder : /proc/net/snmp | |
21 | * Alan Cox : Handle dead sockets properly. | |
22 | * Gerhard Koerting : Show both timers | |
23 | * Alan Cox : Allow inode to be NULL (kernel socket) | |
24 | * Andi Kleen : Add support for open_requests and | |
25 | * split functions for more readibility. | |
26 | * Andi Kleen : Add support for /proc/net/netstat | |
27 | * Arnaldo C. Melo : Convert to seq_file | |
28 | * | |
29 | * This program is free software; you can redistribute it and/or | |
30 | * modify it under the terms of the GNU General Public License | |
31 | * as published by the Free Software Foundation; either version | |
32 | * 2 of the License, or (at your option) any later version. | |
33 | */ | |
34 | #include <linux/types.h> | |
457c4cbc | 35 | #include <net/net_namespace.h> |
1da177e4 LT |
36 | #include <net/icmp.h> |
37 | #include <net/protocol.h> | |
38 | #include <net/tcp.h> | |
39 | #include <net/udp.h> | |
ba4e58ec | 40 | #include <net/udplite.h> |
14c85021 | 41 | #include <linux/inetdevice.h> |
1da177e4 LT |
42 | #include <linux/proc_fs.h> |
43 | #include <linux/seq_file.h> | |
44 | #include <net/sock.h> | |
45 | #include <net/raw.h> | |
46 | ||
1da177e4 LT |
47 | /* |
48 | * Report socket allocation statistics [mea@utu.fi] | |
49 | */ | |
50 | static int sockstat_seq_show(struct seq_file *seq, void *v) | |
51 | { | |
fd4e7b50 PE |
52 | struct net *net = seq->private; |
53 | ||
1da177e4 LT |
54 | socket_seq_show(seq); |
55 | seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %d\n", | |
fd4e7b50 | 56 | sock_prot_inuse_get(net, &tcp_prot), |
65f76517 | 57 | atomic_read(&tcp_orphan_count), |
295ff7ed | 58 | tcp_death_row.tw_count, atomic_read(&tcp_sockets_allocated), |
1da177e4 | 59 | atomic_read(&tcp_memory_allocated)); |
c29a0bc4 | 60 | seq_printf(seq, "UDP: inuse %d mem %d\n", |
fd4e7b50 | 61 | sock_prot_inuse_get(net, &udp_prot), |
95766fff | 62 | atomic_read(&udp_memory_allocated)); |
c29a0bc4 | 63 | seq_printf(seq, "UDPLITE: inuse %d\n", |
fd4e7b50 | 64 | sock_prot_inuse_get(net, &udplite_prot)); |
c29a0bc4 | 65 | seq_printf(seq, "RAW: inuse %d\n", |
fd4e7b50 | 66 | sock_prot_inuse_get(net, &raw_prot)); |
7eb95156 | 67 | seq_printf(seq, "FRAG: inuse %d memory %d\n", |
fd4e7b50 | 68 | ip_frag_nqueues(net), ip_frag_mem(net)); |
1da177e4 LT |
69 | return 0; |
70 | } | |
71 | ||
72 | static int sockstat_seq_open(struct inode *inode, struct file *file) | |
73 | { | |
de05c557 | 74 | return single_open_net(inode, file, sockstat_seq_show); |
fd4e7b50 PE |
75 | } |
76 | ||
9a32144e | 77 | static const struct file_operations sockstat_seq_fops = { |
1da177e4 LT |
78 | .owner = THIS_MODULE, |
79 | .open = sockstat_seq_open, | |
80 | .read = seq_read, | |
81 | .llseek = seq_lseek, | |
b6fcbdb4 | 82 | .release = single_release_net, |
1da177e4 LT |
83 | }; |
84 | ||
1da177e4 | 85 | /* snmp items */ |
9b5b5cff | 86 | static const struct snmp_mib snmp4_ipstats_list[] = { |
1da177e4 LT |
87 | SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES), |
88 | SNMP_MIB_ITEM("InHdrErrors", IPSTATS_MIB_INHDRERRORS), | |
89 | SNMP_MIB_ITEM("InAddrErrors", IPSTATS_MIB_INADDRERRORS), | |
90 | SNMP_MIB_ITEM("ForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS), | |
91 | SNMP_MIB_ITEM("InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS), | |
92 | SNMP_MIB_ITEM("InDiscards", IPSTATS_MIB_INDISCARDS), | |
93 | SNMP_MIB_ITEM("InDelivers", IPSTATS_MIB_INDELIVERS), | |
94 | SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTREQUESTS), | |
95 | SNMP_MIB_ITEM("OutDiscards", IPSTATS_MIB_OUTDISCARDS), | |
96 | SNMP_MIB_ITEM("OutNoRoutes", IPSTATS_MIB_OUTNOROUTES), | |
97 | SNMP_MIB_ITEM("ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT), | |
98 | SNMP_MIB_ITEM("ReasmReqds", IPSTATS_MIB_REASMREQDS), | |
99 | SNMP_MIB_ITEM("ReasmOKs", IPSTATS_MIB_REASMOKS), | |
100 | SNMP_MIB_ITEM("ReasmFails", IPSTATS_MIB_REASMFAILS), | |
101 | SNMP_MIB_ITEM("FragOKs", IPSTATS_MIB_FRAGOKS), | |
102 | SNMP_MIB_ITEM("FragFails", IPSTATS_MIB_FRAGFAILS), | |
103 | SNMP_MIB_ITEM("FragCreates", IPSTATS_MIB_FRAGCREATES), | |
104 | SNMP_MIB_SENTINEL | |
105 | }; | |
106 | ||
d831666e MC |
107 | /* Following RFC4293 items are displayed in /proc/net/netstat */ |
108 | static const struct snmp_mib snmp4_ipextstats_list[] = { | |
109 | SNMP_MIB_ITEM("InNoRoutes", IPSTATS_MIB_INNOROUTES), | |
110 | SNMP_MIB_ITEM("InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS), | |
111 | SNMP_MIB_ITEM("InMcastPkts", IPSTATS_MIB_INMCASTPKTS), | |
112 | SNMP_MIB_ITEM("OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS), | |
113 | SNMP_MIB_ITEM("InBcastPkts", IPSTATS_MIB_INBCASTPKTS), | |
114 | SNMP_MIB_ITEM("OutBcastPkts", IPSTATS_MIB_OUTBCASTPKTS), | |
115 | SNMP_MIB_SENTINEL | |
116 | }; | |
117 | ||
96793b48 DS |
118 | static struct { |
119 | char *name; | |
120 | int index; | |
121 | } icmpmibmap[] = { | |
122 | { "DestUnreachs", ICMP_DEST_UNREACH }, | |
123 | { "TimeExcds", ICMP_TIME_EXCEEDED }, | |
124 | { "ParmProbs", ICMP_PARAMETERPROB }, | |
125 | { "SrcQuenchs", ICMP_SOURCE_QUENCH }, | |
126 | { "Redirects", ICMP_REDIRECT }, | |
127 | { "Echos", ICMP_ECHO }, | |
128 | { "EchoReps", ICMP_ECHOREPLY }, | |
129 | { "Timestamps", ICMP_TIMESTAMP }, | |
130 | { "TimestampReps", ICMP_TIMESTAMPREPLY }, | |
131 | { "AddrMasks", ICMP_ADDRESS }, | |
132 | { "AddrMaskReps", ICMP_ADDRESSREPLY }, | |
cfcabdcc | 133 | { NULL, 0 } |
96793b48 DS |
134 | }; |
135 | ||
136 | ||
9b5b5cff | 137 | static const struct snmp_mib snmp4_tcp_list[] = { |
1da177e4 LT |
138 | SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM), |
139 | SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN), | |
140 | SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX), | |
141 | SNMP_MIB_ITEM("MaxConn", TCP_MIB_MAXCONN), | |
142 | SNMP_MIB_ITEM("ActiveOpens", TCP_MIB_ACTIVEOPENS), | |
143 | SNMP_MIB_ITEM("PassiveOpens", TCP_MIB_PASSIVEOPENS), | |
144 | SNMP_MIB_ITEM("AttemptFails", TCP_MIB_ATTEMPTFAILS), | |
145 | SNMP_MIB_ITEM("EstabResets", TCP_MIB_ESTABRESETS), | |
146 | SNMP_MIB_ITEM("CurrEstab", TCP_MIB_CURRESTAB), | |
147 | SNMP_MIB_ITEM("InSegs", TCP_MIB_INSEGS), | |
148 | SNMP_MIB_ITEM("OutSegs", TCP_MIB_OUTSEGS), | |
149 | SNMP_MIB_ITEM("RetransSegs", TCP_MIB_RETRANSSEGS), | |
150 | SNMP_MIB_ITEM("InErrs", TCP_MIB_INERRS), | |
151 | SNMP_MIB_ITEM("OutRsts", TCP_MIB_OUTRSTS), | |
152 | SNMP_MIB_SENTINEL | |
153 | }; | |
154 | ||
9b5b5cff | 155 | static const struct snmp_mib snmp4_udp_list[] = { |
1da177e4 LT |
156 | SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS), |
157 | SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS), | |
158 | SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS), | |
159 | SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
81aa646c MB |
160 | SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS), |
161 | SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS), | |
1da177e4 LT |
162 | SNMP_MIB_SENTINEL |
163 | }; | |
164 | ||
9b5b5cff | 165 | static const struct snmp_mib snmp4_net_list[] = { |
1da177e4 LT |
166 | SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT), |
167 | SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV), | |
168 | SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED), | |
169 | SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS), | |
170 | SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED), | |
171 | SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED), | |
172 | SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED), | |
173 | SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS), | |
174 | SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS), | |
175 | SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER), | |
176 | SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED), | |
177 | SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED), | |
178 | SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED), | |
179 | SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED), | |
180 | SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED), | |
181 | SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED), | |
182 | SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS), | |
183 | SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED), | |
184 | SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST), | |
185 | SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS), | |
186 | SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS), | |
187 | SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED), | |
188 | SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG), | |
189 | SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE), | |
190 | SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED), | |
191 | SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS), | |
192 | SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER), | |
193 | SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS), | |
194 | SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS), | |
195 | SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY), | |
196 | SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY), | |
197 | SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING), | |
198 | SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER), | |
199 | SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER), | |
200 | SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER), | |
201 | SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER), | |
202 | SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO), | |
203 | SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO), | |
204 | SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO), | |
205 | SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO), | |
206 | SNMP_MIB_ITEM("TCPLoss", LINUX_MIB_TCPLOSS), | |
207 | SNMP_MIB_ITEM("TCPLostRetransmit", LINUX_MIB_TCPLOSTRETRANSMIT), | |
208 | SNMP_MIB_ITEM("TCPRenoFailures", LINUX_MIB_TCPRENOFAILURES), | |
209 | SNMP_MIB_ITEM("TCPSackFailures", LINUX_MIB_TCPSACKFAILURES), | |
210 | SNMP_MIB_ITEM("TCPLossFailures", LINUX_MIB_TCPLOSSFAILURES), | |
211 | SNMP_MIB_ITEM("TCPFastRetrans", LINUX_MIB_TCPFASTRETRANS), | |
212 | SNMP_MIB_ITEM("TCPForwardRetrans", LINUX_MIB_TCPFORWARDRETRANS), | |
213 | SNMP_MIB_ITEM("TCPSlowStartRetrans", LINUX_MIB_TCPSLOWSTARTRETRANS), | |
214 | SNMP_MIB_ITEM("TCPTimeouts", LINUX_MIB_TCPTIMEOUTS), | |
215 | SNMP_MIB_ITEM("TCPRenoRecoveryFail", LINUX_MIB_TCPRENORECOVERYFAIL), | |
216 | SNMP_MIB_ITEM("TCPSackRecoveryFail", LINUX_MIB_TCPSACKRECOVERYFAIL), | |
217 | SNMP_MIB_ITEM("TCPSchedulerFailed", LINUX_MIB_TCPSCHEDULERFAILED), | |
218 | SNMP_MIB_ITEM("TCPRcvCollapsed", LINUX_MIB_TCPRCVCOLLAPSED), | |
219 | SNMP_MIB_ITEM("TCPDSACKOldSent", LINUX_MIB_TCPDSACKOLDSENT), | |
220 | SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT), | |
221 | SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV), | |
222 | SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV), | |
223 | SNMP_MIB_ITEM("TCPAbortOnSyn", LINUX_MIB_TCPABORTONSYN), | |
224 | SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA), | |
225 | SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE), | |
226 | SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY), | |
227 | SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT), | |
228 | SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER), | |
229 | SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED), | |
230 | SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES), | |
18f02545 IJ |
231 | SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD), |
232 | SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD), | |
233 | SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO), | |
912d8f0b | 234 | SNMP_MIB_ITEM("TCPSpuriousRTOs", LINUX_MIB_TCPSPURIOUSRTOS), |
785957d3 DM |
235 | SNMP_MIB_ITEM("TCPMD5NotFound", LINUX_MIB_TCPMD5NOTFOUND), |
236 | SNMP_MIB_ITEM("TCPMD5Unexpected", LINUX_MIB_TCPMD5UNEXPECTED), | |
1da177e4 LT |
237 | SNMP_MIB_SENTINEL |
238 | }; | |
239 | ||
b971e7ac ED |
240 | static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals, |
241 | unsigned short *type, int count) | |
242 | { | |
243 | int j; | |
244 | ||
245 | if (count) { | |
246 | seq_printf(seq, "\nIcmpMsg:"); | |
247 | for (j = 0; j < count; ++j) | |
248 | seq_printf(seq, " %sType%u", | |
249 | type[j] & 0x100 ? "Out" : "In", | |
250 | type[j] & 0xff); | |
251 | seq_printf(seq, "\nIcmpMsg:"); | |
252 | for (j = 0; j < count; ++j) | |
253 | seq_printf(seq, " %lu", vals[j]); | |
254 | } | |
255 | } | |
256 | ||
96793b48 DS |
257 | static void icmpmsg_put(struct seq_file *seq) |
258 | { | |
259 | #define PERLINE 16 | |
260 | ||
b971e7ac ED |
261 | int i, count; |
262 | unsigned short type[PERLINE]; | |
263 | unsigned long vals[PERLINE], val; | |
229bf0cb | 264 | struct net *net = seq->private; |
96793b48 DS |
265 | |
266 | count = 0; | |
267 | for (i = 0; i < ICMPMSG_MIB_MAX; i++) { | |
b971e7ac ED |
268 | val = snmp_fold_field((void **) net->mib.icmpmsg_statistics, i); |
269 | if (val) { | |
270 | type[count] = i; | |
271 | vals[count++] = val; | |
272 | } | |
273 | if (count == PERLINE) { | |
274 | icmpmsg_put_line(seq, vals, type, count); | |
275 | count = 0; | |
276 | } | |
96793b48 | 277 | } |
b971e7ac | 278 | icmpmsg_put_line(seq, vals, type, count); |
96793b48 DS |
279 | |
280 | #undef PERLINE | |
281 | } | |
282 | ||
283 | static void icmp_put(struct seq_file *seq) | |
284 | { | |
285 | int i; | |
229bf0cb | 286 | struct net *net = seq->private; |
96793b48 DS |
287 | |
288 | seq_puts(seq, "\nIcmp: InMsgs InErrors"); | |
289 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
290 | seq_printf(seq, " In%s", icmpmibmap[i].name); | |
291 | seq_printf(seq, " OutMsgs OutErrors"); | |
292 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
293 | seq_printf(seq, " Out%s", icmpmibmap[i].name); | |
294 | seq_printf(seq, "\nIcmp: %lu %lu", | |
229bf0cb PE |
295 | snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INMSGS), |
296 | snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_INERRORS)); | |
96793b48 DS |
297 | for (i=0; icmpmibmap[i].name != NULL; i++) |
298 | seq_printf(seq, " %lu", | |
229bf0cb | 299 | snmp_fold_field((void **) net->mib.icmpmsg_statistics, |
96793b48 DS |
300 | icmpmibmap[i].index)); |
301 | seq_printf(seq, " %lu %lu", | |
229bf0cb PE |
302 | snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS), |
303 | snmp_fold_field((void **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS)); | |
96793b48 DS |
304 | for (i=0; icmpmibmap[i].name != NULL; i++) |
305 | seq_printf(seq, " %lu", | |
229bf0cb | 306 | snmp_fold_field((void **) net->mib.icmpmsg_statistics, |
064f3605 | 307 | icmpmibmap[i].index | 0x100)); |
96793b48 DS |
308 | } |
309 | ||
1da177e4 LT |
310 | /* |
311 | * Called from the PROCfs module. This outputs /proc/net/snmp. | |
312 | */ | |
313 | static int snmp_seq_show(struct seq_file *seq, void *v) | |
314 | { | |
315 | int i; | |
229bf0cb | 316 | struct net *net = seq->private; |
1da177e4 LT |
317 | |
318 | seq_puts(seq, "Ip: Forwarding DefaultTTL"); | |
319 | ||
320 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
321 | seq_printf(seq, " %s", snmp4_ipstats_list[i].name); | |
322 | ||
323 | seq_printf(seq, "\nIp: %d %d", | |
8e3461d0 | 324 | IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2, |
586f1211 | 325 | sysctl_ip_default_ttl); |
1da177e4 LT |
326 | |
327 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
328 | seq_printf(seq, " %lu", | |
229bf0cb | 329 | snmp_fold_field((void **)net->mib.ip_statistics, |
5e0f0435 | 330 | snmp4_ipstats_list[i].entry)); |
1da177e4 | 331 | |
96793b48 DS |
332 | icmp_put(seq); /* RFC 2011 compatibility */ |
333 | icmpmsg_put(seq); | |
1da177e4 LT |
334 | |
335 | seq_puts(seq, "\nTcp:"); | |
336 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) | |
337 | seq_printf(seq, " %s", snmp4_tcp_list[i].name); | |
338 | ||
339 | seq_puts(seq, "\nTcp:"); | |
340 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) { | |
341 | /* MaxConn field is signed, RFC 2012 */ | |
342 | if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN) | |
343 | seq_printf(seq, " %ld", | |
229bf0cb | 344 | snmp_fold_field((void **)net->mib.tcp_statistics, |
5e0f0435 | 345 | snmp4_tcp_list[i].entry)); |
1da177e4 LT |
346 | else |
347 | seq_printf(seq, " %lu", | |
229bf0cb | 348 | snmp_fold_field((void **)net->mib.tcp_statistics, |
5e0f0435 | 349 | snmp4_tcp_list[i].entry)); |
1da177e4 LT |
350 | } |
351 | ||
352 | seq_puts(seq, "\nUdp:"); | |
353 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
354 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
355 | ||
356 | seq_puts(seq, "\nUdp:"); | |
357 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
358 | seq_printf(seq, " %lu", | |
229bf0cb | 359 | snmp_fold_field((void **)net->mib.udp_statistics, |
5e0f0435 | 360 | snmp4_udp_list[i].entry)); |
1da177e4 | 361 | |
ba4e58ec GR |
362 | /* the UDP and UDP-Lite MIBs are the same */ |
363 | seq_puts(seq, "\nUdpLite:"); | |
364 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
365 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
366 | ||
367 | seq_puts(seq, "\nUdpLite:"); | |
368 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
369 | seq_printf(seq, " %lu", | |
229bf0cb | 370 | snmp_fold_field((void **)net->mib.udplite_statistics, |
5e0f0435 | 371 | snmp4_udp_list[i].entry)); |
db8dac20 | 372 | |
1da177e4 LT |
373 | seq_putc(seq, '\n'); |
374 | return 0; | |
375 | } | |
376 | ||
377 | static int snmp_seq_open(struct inode *inode, struct file *file) | |
378 | { | |
de05c557 | 379 | return single_open_net(inode, file, snmp_seq_show); |
229bf0cb PE |
380 | } |
381 | ||
9a32144e | 382 | static const struct file_operations snmp_seq_fops = { |
1da177e4 LT |
383 | .owner = THIS_MODULE, |
384 | .open = snmp_seq_open, | |
385 | .read = seq_read, | |
386 | .llseek = seq_lseek, | |
b6fcbdb4 | 387 | .release = single_release_net, |
1da177e4 LT |
388 | }; |
389 | ||
96793b48 DS |
390 | |
391 | ||
1da177e4 LT |
392 | /* |
393 | * Output /proc/net/netstat | |
394 | */ | |
395 | static int netstat_seq_show(struct seq_file *seq, void *v) | |
396 | { | |
397 | int i; | |
7b7a9dfd | 398 | struct net *net = seq->private; |
1da177e4 LT |
399 | |
400 | seq_puts(seq, "TcpExt:"); | |
401 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
402 | seq_printf(seq, " %s", snmp4_net_list[i].name); | |
403 | ||
404 | seq_puts(seq, "\nTcpExt:"); | |
405 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
406 | seq_printf(seq, " %lu", | |
7b7a9dfd | 407 | snmp_fold_field((void **)net->mib.net_statistics, |
5e0f0435 | 408 | snmp4_net_list[i].entry)); |
1da177e4 | 409 | |
d831666e MC |
410 | seq_puts(seq, "\nIpExt:"); |
411 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
412 | seq_printf(seq, " %s", snmp4_ipextstats_list[i].name); | |
413 | ||
414 | seq_puts(seq, "\nIpExt:"); | |
415 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
416 | seq_printf(seq, " %lu", | |
7b7a9dfd | 417 | snmp_fold_field((void **)net->mib.ip_statistics, |
d831666e MC |
418 | snmp4_ipextstats_list[i].entry)); |
419 | ||
1da177e4 LT |
420 | seq_putc(seq, '\n'); |
421 | return 0; | |
422 | } | |
423 | ||
424 | static int netstat_seq_open(struct inode *inode, struct file *file) | |
425 | { | |
de05c557 | 426 | return single_open_net(inode, file, netstat_seq_show); |
7b7a9dfd PE |
427 | } |
428 | ||
9a32144e | 429 | static const struct file_operations netstat_seq_fops = { |
1da177e4 LT |
430 | .owner = THIS_MODULE, |
431 | .open = netstat_seq_open, | |
432 | .read = seq_read, | |
433 | .llseek = seq_lseek, | |
b6fcbdb4 | 434 | .release = single_release_net, |
1da177e4 LT |
435 | }; |
436 | ||
d0538ca3 PE |
437 | static __net_init int ip_proc_init_net(struct net *net) |
438 | { | |
439 | if (!proc_net_fops_create(net, "sockstat", S_IRUGO, &sockstat_seq_fops)) | |
60bdde95 | 440 | goto out_sockstat; |
7b7a9dfd PE |
441 | if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops)) |
442 | goto out_netstat; | |
229bf0cb PE |
443 | if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops)) |
444 | goto out_snmp; | |
7b7a9dfd | 445 | |
d0538ca3 | 446 | return 0; |
7b7a9dfd | 447 | |
229bf0cb PE |
448 | out_snmp: |
449 | proc_net_remove(net, "netstat"); | |
7b7a9dfd PE |
450 | out_netstat: |
451 | proc_net_remove(net, "sockstat"); | |
60bdde95 | 452 | out_sockstat: |
7b7a9dfd | 453 | return -ENOMEM; |
d0538ca3 PE |
454 | } |
455 | ||
456 | static __net_exit void ip_proc_exit_net(struct net *net) | |
457 | { | |
229bf0cb | 458 | proc_net_remove(net, "snmp"); |
7b7a9dfd | 459 | proc_net_remove(net, "netstat"); |
d0538ca3 PE |
460 | proc_net_remove(net, "sockstat"); |
461 | } | |
462 | ||
463 | static __net_initdata struct pernet_operations ip_proc_ops = { | |
464 | .init = ip_proc_init_net, | |
465 | .exit = ip_proc_exit_net, | |
466 | }; | |
467 | ||
1da177e4 LT |
468 | int __init ip_misc_proc_init(void) |
469 | { | |
60bdde95 | 470 | return register_pernet_subsys(&ip_proc_ops); |
1da177e4 | 471 | } |
33490170 | 472 |