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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 | * | |
10 | * Version: $Id: proc.c,v 1.45 2001/05/16 16:45:35 davem Exp $ | |
11 | * | |
12 | * Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> | |
13 | * Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de> | |
14 | * Fred Baumgarten, <dc6iq@insu1.etec.uni-karlsruhe.de> | |
15 | * Erik Schoenfelder, <schoenfr@ibr.cs.tu-bs.de> | |
16 | * | |
17 | * Fixes: | |
18 | * Alan Cox : UDP sockets show the rxqueue/txqueue | |
19 | * using hint flag for the netinfo. | |
20 | * Pauline Middelink : identd support | |
21 | * Alan Cox : Make /proc safer. | |
22 | * Erik Schoenfelder : /proc/net/snmp | |
23 | * Alan Cox : Handle dead sockets properly. | |
24 | * Gerhard Koerting : Show both timers | |
25 | * Alan Cox : Allow inode to be NULL (kernel socket) | |
26 | * Andi Kleen : Add support for open_requests and | |
27 | * split functions for more readibility. | |
28 | * Andi Kleen : Add support for /proc/net/netstat | |
29 | * Arnaldo C. Melo : Convert to seq_file | |
30 | * | |
31 | * This program is free software; you can redistribute it and/or | |
32 | * modify it under the terms of the GNU General Public License | |
33 | * as published by the Free Software Foundation; either version | |
34 | * 2 of the License, or (at your option) any later version. | |
35 | */ | |
36 | #include <linux/types.h> | |
457c4cbc | 37 | #include <net/net_namespace.h> |
1da177e4 LT |
38 | #include <net/icmp.h> |
39 | #include <net/protocol.h> | |
40 | #include <net/tcp.h> | |
41 | #include <net/udp.h> | |
ba4e58ec | 42 | #include <net/udplite.h> |
14c85021 | 43 | #include <linux/inetdevice.h> |
1da177e4 LT |
44 | #include <linux/proc_fs.h> |
45 | #include <linux/seq_file.h> | |
46 | #include <net/sock.h> | |
47 | #include <net/raw.h> | |
48 | ||
49 | static int fold_prot_inuse(struct proto *proto) | |
50 | { | |
51 | int res = 0; | |
52 | int cpu; | |
53 | ||
6f912042 | 54 | for_each_possible_cpu(cpu) |
1da177e4 LT |
55 | res += proto->stats[cpu].inuse; |
56 | ||
57 | return res; | |
58 | } | |
59 | ||
60 | /* | |
61 | * Report socket allocation statistics [mea@utu.fi] | |
62 | */ | |
63 | static int sockstat_seq_show(struct seq_file *seq, void *v) | |
64 | { | |
1da177e4 LT |
65 | socket_seq_show(seq); |
66 | seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %d\n", | |
67 | fold_prot_inuse(&tcp_prot), atomic_read(&tcp_orphan_count), | |
295ff7ed | 68 | tcp_death_row.tw_count, atomic_read(&tcp_sockets_allocated), |
1da177e4 LT |
69 | atomic_read(&tcp_memory_allocated)); |
70 | seq_printf(seq, "UDP: inuse %d\n", fold_prot_inuse(&udp_prot)); | |
ba4e58ec | 71 | seq_printf(seq, "UDPLITE: inuse %d\n", fold_prot_inuse(&udplite_prot)); |
1da177e4 LT |
72 | seq_printf(seq, "RAW: inuse %d\n", fold_prot_inuse(&raw_prot)); |
73 | seq_printf(seq, "FRAG: inuse %d memory %d\n", ip_frag_nqueues, | |
74 | atomic_read(&ip_frag_mem)); | |
75 | return 0; | |
76 | } | |
77 | ||
78 | static int sockstat_seq_open(struct inode *inode, struct file *file) | |
79 | { | |
80 | return single_open(file, sockstat_seq_show, NULL); | |
81 | } | |
82 | ||
9a32144e | 83 | static const struct file_operations sockstat_seq_fops = { |
1da177e4 LT |
84 | .owner = THIS_MODULE, |
85 | .open = sockstat_seq_open, | |
86 | .read = seq_read, | |
87 | .llseek = seq_lseek, | |
88 | .release = single_release, | |
89 | }; | |
90 | ||
1da177e4 | 91 | /* snmp items */ |
9b5b5cff | 92 | static const struct snmp_mib snmp4_ipstats_list[] = { |
1da177e4 LT |
93 | SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES), |
94 | SNMP_MIB_ITEM("InHdrErrors", IPSTATS_MIB_INHDRERRORS), | |
95 | SNMP_MIB_ITEM("InAddrErrors", IPSTATS_MIB_INADDRERRORS), | |
96 | SNMP_MIB_ITEM("ForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS), | |
97 | SNMP_MIB_ITEM("InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS), | |
98 | SNMP_MIB_ITEM("InDiscards", IPSTATS_MIB_INDISCARDS), | |
99 | SNMP_MIB_ITEM("InDelivers", IPSTATS_MIB_INDELIVERS), | |
100 | SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTREQUESTS), | |
101 | SNMP_MIB_ITEM("OutDiscards", IPSTATS_MIB_OUTDISCARDS), | |
102 | SNMP_MIB_ITEM("OutNoRoutes", IPSTATS_MIB_OUTNOROUTES), | |
103 | SNMP_MIB_ITEM("ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT), | |
104 | SNMP_MIB_ITEM("ReasmReqds", IPSTATS_MIB_REASMREQDS), | |
105 | SNMP_MIB_ITEM("ReasmOKs", IPSTATS_MIB_REASMOKS), | |
106 | SNMP_MIB_ITEM("ReasmFails", IPSTATS_MIB_REASMFAILS), | |
107 | SNMP_MIB_ITEM("FragOKs", IPSTATS_MIB_FRAGOKS), | |
108 | SNMP_MIB_ITEM("FragFails", IPSTATS_MIB_FRAGFAILS), | |
109 | SNMP_MIB_ITEM("FragCreates", IPSTATS_MIB_FRAGCREATES), | |
110 | SNMP_MIB_SENTINEL | |
111 | }; | |
112 | ||
d831666e MC |
113 | /* Following RFC4293 items are displayed in /proc/net/netstat */ |
114 | static const struct snmp_mib snmp4_ipextstats_list[] = { | |
115 | SNMP_MIB_ITEM("InNoRoutes", IPSTATS_MIB_INNOROUTES), | |
116 | SNMP_MIB_ITEM("InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS), | |
117 | SNMP_MIB_ITEM("InMcastPkts", IPSTATS_MIB_INMCASTPKTS), | |
118 | SNMP_MIB_ITEM("OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS), | |
119 | SNMP_MIB_ITEM("InBcastPkts", IPSTATS_MIB_INBCASTPKTS), | |
120 | SNMP_MIB_ITEM("OutBcastPkts", IPSTATS_MIB_OUTBCASTPKTS), | |
121 | SNMP_MIB_SENTINEL | |
122 | }; | |
123 | ||
9b5b5cff | 124 | static const struct snmp_mib snmp4_icmp_list[] = { |
1da177e4 LT |
125 | SNMP_MIB_ITEM("InMsgs", ICMP_MIB_INMSGS), |
126 | SNMP_MIB_ITEM("InErrors", ICMP_MIB_INERRORS), | |
1da177e4 LT |
127 | SNMP_MIB_ITEM("OutMsgs", ICMP_MIB_OUTMSGS), |
128 | SNMP_MIB_ITEM("OutErrors", ICMP_MIB_OUTERRORS), | |
1da177e4 LT |
129 | SNMP_MIB_SENTINEL |
130 | }; | |
131 | ||
96793b48 DS |
132 | static struct { |
133 | char *name; | |
134 | int index; | |
135 | } icmpmibmap[] = { | |
136 | { "DestUnreachs", ICMP_DEST_UNREACH }, | |
137 | { "TimeExcds", ICMP_TIME_EXCEEDED }, | |
138 | { "ParmProbs", ICMP_PARAMETERPROB }, | |
139 | { "SrcQuenchs", ICMP_SOURCE_QUENCH }, | |
140 | { "Redirects", ICMP_REDIRECT }, | |
141 | { "Echos", ICMP_ECHO }, | |
142 | { "EchoReps", ICMP_ECHOREPLY }, | |
143 | { "Timestamps", ICMP_TIMESTAMP }, | |
144 | { "TimestampReps", ICMP_TIMESTAMPREPLY }, | |
145 | { "AddrMasks", ICMP_ADDRESS }, | |
146 | { "AddrMaskReps", ICMP_ADDRESSREPLY }, | |
147 | { 0, 0 } | |
148 | }; | |
149 | ||
150 | ||
9b5b5cff | 151 | static const struct snmp_mib snmp4_tcp_list[] = { |
1da177e4 LT |
152 | SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM), |
153 | SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN), | |
154 | SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX), | |
155 | SNMP_MIB_ITEM("MaxConn", TCP_MIB_MAXCONN), | |
156 | SNMP_MIB_ITEM("ActiveOpens", TCP_MIB_ACTIVEOPENS), | |
157 | SNMP_MIB_ITEM("PassiveOpens", TCP_MIB_PASSIVEOPENS), | |
158 | SNMP_MIB_ITEM("AttemptFails", TCP_MIB_ATTEMPTFAILS), | |
159 | SNMP_MIB_ITEM("EstabResets", TCP_MIB_ESTABRESETS), | |
160 | SNMP_MIB_ITEM("CurrEstab", TCP_MIB_CURRESTAB), | |
161 | SNMP_MIB_ITEM("InSegs", TCP_MIB_INSEGS), | |
162 | SNMP_MIB_ITEM("OutSegs", TCP_MIB_OUTSEGS), | |
163 | SNMP_MIB_ITEM("RetransSegs", TCP_MIB_RETRANSSEGS), | |
164 | SNMP_MIB_ITEM("InErrs", TCP_MIB_INERRS), | |
165 | SNMP_MIB_ITEM("OutRsts", TCP_MIB_OUTRSTS), | |
166 | SNMP_MIB_SENTINEL | |
167 | }; | |
168 | ||
9b5b5cff | 169 | static const struct snmp_mib snmp4_udp_list[] = { |
1da177e4 LT |
170 | SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS), |
171 | SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS), | |
172 | SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS), | |
173 | SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
81aa646c MB |
174 | SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS), |
175 | SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS), | |
1da177e4 LT |
176 | SNMP_MIB_SENTINEL |
177 | }; | |
178 | ||
9b5b5cff | 179 | static const struct snmp_mib snmp4_net_list[] = { |
1da177e4 LT |
180 | SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT), |
181 | SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV), | |
182 | SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED), | |
183 | SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS), | |
184 | SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED), | |
185 | SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED), | |
186 | SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED), | |
187 | SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS), | |
188 | SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS), | |
189 | SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER), | |
190 | SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED), | |
191 | SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED), | |
192 | SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED), | |
193 | SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED), | |
194 | SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED), | |
195 | SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED), | |
196 | SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS), | |
197 | SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED), | |
198 | SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST), | |
199 | SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS), | |
200 | SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS), | |
201 | SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED), | |
202 | SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG), | |
203 | SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE), | |
204 | SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED), | |
205 | SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS), | |
206 | SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER), | |
207 | SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS), | |
208 | SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS), | |
209 | SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY), | |
210 | SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY), | |
211 | SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING), | |
212 | SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER), | |
213 | SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER), | |
214 | SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER), | |
215 | SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER), | |
216 | SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO), | |
217 | SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO), | |
218 | SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO), | |
219 | SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO), | |
220 | SNMP_MIB_ITEM("TCPLoss", LINUX_MIB_TCPLOSS), | |
221 | SNMP_MIB_ITEM("TCPLostRetransmit", LINUX_MIB_TCPLOSTRETRANSMIT), | |
222 | SNMP_MIB_ITEM("TCPRenoFailures", LINUX_MIB_TCPRENOFAILURES), | |
223 | SNMP_MIB_ITEM("TCPSackFailures", LINUX_MIB_TCPSACKFAILURES), | |
224 | SNMP_MIB_ITEM("TCPLossFailures", LINUX_MIB_TCPLOSSFAILURES), | |
225 | SNMP_MIB_ITEM("TCPFastRetrans", LINUX_MIB_TCPFASTRETRANS), | |
226 | SNMP_MIB_ITEM("TCPForwardRetrans", LINUX_MIB_TCPFORWARDRETRANS), | |
227 | SNMP_MIB_ITEM("TCPSlowStartRetrans", LINUX_MIB_TCPSLOWSTARTRETRANS), | |
228 | SNMP_MIB_ITEM("TCPTimeouts", LINUX_MIB_TCPTIMEOUTS), | |
229 | SNMP_MIB_ITEM("TCPRenoRecoveryFail", LINUX_MIB_TCPRENORECOVERYFAIL), | |
230 | SNMP_MIB_ITEM("TCPSackRecoveryFail", LINUX_MIB_TCPSACKRECOVERYFAIL), | |
231 | SNMP_MIB_ITEM("TCPSchedulerFailed", LINUX_MIB_TCPSCHEDULERFAILED), | |
232 | SNMP_MIB_ITEM("TCPRcvCollapsed", LINUX_MIB_TCPRCVCOLLAPSED), | |
233 | SNMP_MIB_ITEM("TCPDSACKOldSent", LINUX_MIB_TCPDSACKOLDSENT), | |
234 | SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT), | |
235 | SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV), | |
236 | SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV), | |
237 | SNMP_MIB_ITEM("TCPAbortOnSyn", LINUX_MIB_TCPABORTONSYN), | |
238 | SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA), | |
239 | SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE), | |
240 | SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY), | |
241 | SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT), | |
242 | SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER), | |
243 | SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED), | |
244 | SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES), | |
18f02545 IJ |
245 | SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD), |
246 | SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD), | |
247 | SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO), | |
1da177e4 LT |
248 | SNMP_MIB_SENTINEL |
249 | }; | |
250 | ||
96793b48 DS |
251 | static void icmpmsg_put(struct seq_file *seq) |
252 | { | |
253 | #define PERLINE 16 | |
254 | ||
255 | int j, i, count; | |
256 | static int out[PERLINE]; | |
257 | ||
258 | count = 0; | |
259 | for (i = 0; i < ICMPMSG_MIB_MAX; i++) { | |
260 | ||
261 | if (snmp_fold_field((void **) icmpmsg_statistics, i)) | |
262 | out[count++] = i; | |
263 | if (count < PERLINE) | |
264 | continue; | |
265 | ||
266 | seq_printf(seq, "\nIcmpMsg:"); | |
267 | for (j = 0; j < PERLINE; ++j) | |
268 | seq_printf(seq, " %sType%u", i & 0x100 ? "Out" : "In", | |
269 | i & 0xff); | |
270 | seq_printf(seq, "\nIcmpMsg: "); | |
271 | for (j = 0; j < PERLINE; ++j) | |
272 | seq_printf(seq, " %lu", | |
273 | snmp_fold_field((void **) icmpmsg_statistics, | |
274 | out[j])); | |
275 | seq_putc(seq, '\n'); | |
276 | } | |
277 | if (count) { | |
278 | seq_printf(seq, "\nIcmpMsg:"); | |
279 | for (j = 0; j < count; ++j) | |
280 | seq_printf(seq, " %sType%u", out[j] & 0x100 ? "Out" : | |
281 | "In", out[j] & 0xff); | |
282 | seq_printf(seq, "\nIcmpMsg:"); | |
283 | for (j = 0; j < count; ++j) | |
284 | seq_printf(seq, " %lu", snmp_fold_field((void **) | |
285 | icmpmsg_statistics, out[j])); | |
286 | } | |
287 | ||
288 | #undef PERLINE | |
289 | } | |
290 | ||
291 | static void icmp_put(struct seq_file *seq) | |
292 | { | |
293 | int i; | |
294 | ||
295 | seq_puts(seq, "\nIcmp: InMsgs InErrors"); | |
296 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
297 | seq_printf(seq, " In%s", icmpmibmap[i].name); | |
298 | seq_printf(seq, " OutMsgs OutErrors"); | |
299 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
300 | seq_printf(seq, " Out%s", icmpmibmap[i].name); | |
301 | seq_printf(seq, "\nIcmp: %lu %lu", | |
302 | snmp_fold_field((void **) icmp_statistics, ICMP_MIB_INMSGS), | |
303 | snmp_fold_field((void **) icmp_statistics, ICMP_MIB_INERRORS)); | |
304 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
305 | seq_printf(seq, " %lu", | |
306 | snmp_fold_field((void **) icmpmsg_statistics, | |
307 | icmpmibmap[i].index)); | |
308 | seq_printf(seq, " %lu %lu", | |
309 | snmp_fold_field((void **) icmp_statistics, ICMP_MIB_OUTMSGS), | |
310 | snmp_fold_field((void **) icmp_statistics, ICMP_MIB_OUTERRORS)); | |
311 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
312 | seq_printf(seq, " %lu", | |
313 | snmp_fold_field((void **) icmpmsg_statistics, | |
314 | icmpmibmap[i].index)); | |
315 | } | |
316 | ||
1da177e4 LT |
317 | /* |
318 | * Called from the PROCfs module. This outputs /proc/net/snmp. | |
319 | */ | |
320 | static int snmp_seq_show(struct seq_file *seq, void *v) | |
321 | { | |
322 | int i; | |
323 | ||
324 | seq_puts(seq, "Ip: Forwarding DefaultTTL"); | |
325 | ||
326 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
327 | seq_printf(seq, " %s", snmp4_ipstats_list[i].name); | |
328 | ||
329 | seq_printf(seq, "\nIp: %d %d", | |
42f811b8 | 330 | IPV4_DEVCONF_ALL(FORWARDING) ? 1 : 2, sysctl_ip_default_ttl); |
1da177e4 LT |
331 | |
332 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
333 | seq_printf(seq, " %lu", | |
5e0f0435 HX |
334 | snmp_fold_field((void **)ip_statistics, |
335 | snmp4_ipstats_list[i].entry)); | |
1da177e4 | 336 | |
96793b48 DS |
337 | icmp_put(seq); /* RFC 2011 compatibility */ |
338 | icmpmsg_put(seq); | |
1da177e4 LT |
339 | |
340 | seq_puts(seq, "\nTcp:"); | |
341 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) | |
342 | seq_printf(seq, " %s", snmp4_tcp_list[i].name); | |
343 | ||
344 | seq_puts(seq, "\nTcp:"); | |
345 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) { | |
346 | /* MaxConn field is signed, RFC 2012 */ | |
347 | if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN) | |
348 | seq_printf(seq, " %ld", | |
5e0f0435 HX |
349 | snmp_fold_field((void **)tcp_statistics, |
350 | snmp4_tcp_list[i].entry)); | |
1da177e4 LT |
351 | else |
352 | seq_printf(seq, " %lu", | |
5e0f0435 HX |
353 | snmp_fold_field((void **)tcp_statistics, |
354 | snmp4_tcp_list[i].entry)); | |
1da177e4 LT |
355 | } |
356 | ||
357 | seq_puts(seq, "\nUdp:"); | |
358 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
359 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
360 | ||
361 | seq_puts(seq, "\nUdp:"); | |
362 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
363 | seq_printf(seq, " %lu", | |
5e0f0435 HX |
364 | snmp_fold_field((void **)udp_statistics, |
365 | snmp4_udp_list[i].entry)); | |
1da177e4 | 366 | |
ba4e58ec GR |
367 | /* the UDP and UDP-Lite MIBs are the same */ |
368 | seq_puts(seq, "\nUdpLite:"); | |
369 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
370 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
371 | ||
372 | seq_puts(seq, "\nUdpLite:"); | |
373 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
374 | seq_printf(seq, " %lu", | |
5e0f0435 HX |
375 | snmp_fold_field((void **)udplite_statistics, |
376 | snmp4_udp_list[i].entry)); | |
ba4e58ec | 377 | |
1da177e4 LT |
378 | seq_putc(seq, '\n'); |
379 | return 0; | |
380 | } | |
381 | ||
382 | static int snmp_seq_open(struct inode *inode, struct file *file) | |
383 | { | |
384 | return single_open(file, snmp_seq_show, NULL); | |
385 | } | |
386 | ||
9a32144e | 387 | static const struct file_operations snmp_seq_fops = { |
1da177e4 LT |
388 | .owner = THIS_MODULE, |
389 | .open = snmp_seq_open, | |
390 | .read = seq_read, | |
391 | .llseek = seq_lseek, | |
392 | .release = single_release, | |
393 | }; | |
394 | ||
96793b48 DS |
395 | |
396 | ||
1da177e4 LT |
397 | /* |
398 | * Output /proc/net/netstat | |
399 | */ | |
400 | static int netstat_seq_show(struct seq_file *seq, void *v) | |
401 | { | |
402 | int i; | |
403 | ||
404 | seq_puts(seq, "TcpExt:"); | |
405 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
406 | seq_printf(seq, " %s", snmp4_net_list[i].name); | |
407 | ||
408 | seq_puts(seq, "\nTcpExt:"); | |
409 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
410 | seq_printf(seq, " %lu", | |
5e0f0435 HX |
411 | snmp_fold_field((void **)net_statistics, |
412 | snmp4_net_list[i].entry)); | |
1da177e4 | 413 | |
d831666e MC |
414 | seq_puts(seq, "\nIpExt:"); |
415 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
416 | seq_printf(seq, " %s", snmp4_ipextstats_list[i].name); | |
417 | ||
418 | seq_puts(seq, "\nIpExt:"); | |
419 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
420 | seq_printf(seq, " %lu", | |
421 | snmp_fold_field((void **)ip_statistics, | |
422 | snmp4_ipextstats_list[i].entry)); | |
423 | ||
1da177e4 LT |
424 | seq_putc(seq, '\n'); |
425 | return 0; | |
426 | } | |
427 | ||
428 | static int netstat_seq_open(struct inode *inode, struct file *file) | |
429 | { | |
430 | return single_open(file, netstat_seq_show, NULL); | |
431 | } | |
432 | ||
9a32144e | 433 | static const struct file_operations netstat_seq_fops = { |
1da177e4 LT |
434 | .owner = THIS_MODULE, |
435 | .open = netstat_seq_open, | |
436 | .read = seq_read, | |
437 | .llseek = seq_lseek, | |
438 | .release = single_release, | |
439 | }; | |
440 | ||
441 | int __init ip_misc_proc_init(void) | |
442 | { | |
443 | int rc = 0; | |
444 | ||
457c4cbc | 445 | if (!proc_net_fops_create(&init_net, "netstat", S_IRUGO, &netstat_seq_fops)) |
1da177e4 LT |
446 | goto out_netstat; |
447 | ||
457c4cbc | 448 | if (!proc_net_fops_create(&init_net, "snmp", S_IRUGO, &snmp_seq_fops)) |
1da177e4 LT |
449 | goto out_snmp; |
450 | ||
457c4cbc | 451 | if (!proc_net_fops_create(&init_net, "sockstat", S_IRUGO, &sockstat_seq_fops)) |
1da177e4 LT |
452 | goto out_sockstat; |
453 | out: | |
454 | return rc; | |
455 | out_sockstat: | |
457c4cbc | 456 | proc_net_remove(&init_net, "snmp"); |
1da177e4 | 457 | out_snmp: |
457c4cbc | 458 | proc_net_remove(&init_net, "netstat"); |
1da177e4 LT |
459 | out_netstat: |
460 | rc = -ENOMEM; | |
461 | goto out; | |
462 | } | |
33490170 | 463 |