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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. 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> |
eb4dea58 | 41 | #include <linux/bottom_half.h> |
14c85021 | 42 | #include <linux/inetdevice.h> |
1da177e4 LT |
43 | #include <linux/proc_fs.h> |
44 | #include <linux/seq_file.h> | |
45 | #include <net/sock.h> | |
46 | #include <net/raw.h> | |
47 | ||
1da177e4 LT |
48 | /* |
49 | * Report socket allocation statistics [mea@utu.fi] | |
50 | */ | |
51 | static int sockstat_seq_show(struct seq_file *seq, void *v) | |
52 | { | |
fd4e7b50 | 53 | struct net *net = seq->private; |
eb4dea58 HX |
54 | int orphans, sockets; |
55 | ||
56 | local_bh_disable(); | |
1c10c49d TG |
57 | orphans = percpu_counter_sum_positive(&tcp_orphan_count); |
58 | sockets = percpu_counter_sum_positive(&tcp_sockets_allocated); | |
eb4dea58 | 59 | local_bh_enable(); |
fd4e7b50 | 60 | |
1da177e4 | 61 | socket_seq_show(seq); |
8d987e5c | 62 | seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %ld\n", |
eb4dea58 HX |
63 | sock_prot_inuse_get(net, &tcp_prot), orphans, |
64 | tcp_death_row.tw_count, sockets, | |
8d987e5c ED |
65 | atomic_long_read(&tcp_memory_allocated)); |
66 | seq_printf(seq, "UDP: inuse %d mem %ld\n", | |
fd4e7b50 | 67 | sock_prot_inuse_get(net, &udp_prot), |
8d987e5c | 68 | atomic_long_read(&udp_memory_allocated)); |
c29a0bc4 | 69 | seq_printf(seq, "UDPLITE: inuse %d\n", |
fd4e7b50 | 70 | sock_prot_inuse_get(net, &udplite_prot)); |
c29a0bc4 | 71 | seq_printf(seq, "RAW: inuse %d\n", |
fd4e7b50 | 72 | sock_prot_inuse_get(net, &raw_prot)); |
7eb95156 | 73 | seq_printf(seq, "FRAG: inuse %d memory %d\n", |
fd4e7b50 | 74 | ip_frag_nqueues(net), ip_frag_mem(net)); |
1da177e4 LT |
75 | return 0; |
76 | } | |
77 | ||
78 | static int sockstat_seq_open(struct inode *inode, struct file *file) | |
79 | { | |
de05c557 | 80 | return single_open_net(inode, file, sockstat_seq_show); |
fd4e7b50 PE |
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, | |
b6fcbdb4 | 88 | .release = single_release_net, |
1da177e4 LT |
89 | }; |
90 | ||
1da177e4 | 91 | /* snmp items */ |
9b5b5cff | 92 | static const struct snmp_mib snmp4_ipstats_list[] = { |
edf391ff | 93 | SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS), |
1da177e4 LT |
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), | |
edf391ff | 100 | SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTPKTS), |
1da177e4 LT |
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), | |
edf391ff NH |
121 | SNMP_MIB_ITEM("InOctets", IPSTATS_MIB_INOCTETS), |
122 | SNMP_MIB_ITEM("OutOctets", IPSTATS_MIB_OUTOCTETS), | |
123 | SNMP_MIB_ITEM("InMcastOctets", IPSTATS_MIB_INMCASTOCTETS), | |
124 | SNMP_MIB_ITEM("OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS), | |
125 | SNMP_MIB_ITEM("InBcastOctets", IPSTATS_MIB_INBCASTOCTETS), | |
126 | SNMP_MIB_ITEM("OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS), | |
d831666e MC |
127 | SNMP_MIB_SENTINEL |
128 | }; | |
129 | ||
5833929c AD |
130 | static const struct { |
131 | const char *name; | |
96793b48 DS |
132 | int index; |
133 | } icmpmibmap[] = { | |
134 | { "DestUnreachs", ICMP_DEST_UNREACH }, | |
135 | { "TimeExcds", ICMP_TIME_EXCEEDED }, | |
136 | { "ParmProbs", ICMP_PARAMETERPROB }, | |
137 | { "SrcQuenchs", ICMP_SOURCE_QUENCH }, | |
138 | { "Redirects", ICMP_REDIRECT }, | |
139 | { "Echos", ICMP_ECHO }, | |
140 | { "EchoReps", ICMP_ECHOREPLY }, | |
141 | { "Timestamps", ICMP_TIMESTAMP }, | |
142 | { "TimestampReps", ICMP_TIMESTAMPREPLY }, | |
143 | { "AddrMasks", ICMP_ADDRESS }, | |
144 | { "AddrMaskReps", ICMP_ADDRESSREPLY }, | |
cfcabdcc | 145 | { NULL, 0 } |
96793b48 DS |
146 | }; |
147 | ||
148 | ||
9b5b5cff | 149 | static const struct snmp_mib snmp4_tcp_list[] = { |
1da177e4 LT |
150 | SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM), |
151 | SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN), | |
152 | SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX), | |
153 | SNMP_MIB_ITEM("MaxConn", TCP_MIB_MAXCONN), | |
154 | SNMP_MIB_ITEM("ActiveOpens", TCP_MIB_ACTIVEOPENS), | |
155 | SNMP_MIB_ITEM("PassiveOpens", TCP_MIB_PASSIVEOPENS), | |
156 | SNMP_MIB_ITEM("AttemptFails", TCP_MIB_ATTEMPTFAILS), | |
157 | SNMP_MIB_ITEM("EstabResets", TCP_MIB_ESTABRESETS), | |
158 | SNMP_MIB_ITEM("CurrEstab", TCP_MIB_CURRESTAB), | |
159 | SNMP_MIB_ITEM("InSegs", TCP_MIB_INSEGS), | |
160 | SNMP_MIB_ITEM("OutSegs", TCP_MIB_OUTSEGS), | |
161 | SNMP_MIB_ITEM("RetransSegs", TCP_MIB_RETRANSSEGS), | |
162 | SNMP_MIB_ITEM("InErrs", TCP_MIB_INERRS), | |
163 | SNMP_MIB_ITEM("OutRsts", TCP_MIB_OUTRSTS), | |
164 | SNMP_MIB_SENTINEL | |
165 | }; | |
166 | ||
9b5b5cff | 167 | static const struct snmp_mib snmp4_udp_list[] = { |
1da177e4 LT |
168 | SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS), |
169 | SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS), | |
170 | SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS), | |
171 | SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
81aa646c MB |
172 | SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS), |
173 | SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS), | |
1da177e4 LT |
174 | SNMP_MIB_SENTINEL |
175 | }; | |
176 | ||
9b5b5cff | 177 | static const struct snmp_mib snmp4_net_list[] = { |
1da177e4 LT |
178 | SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT), |
179 | SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV), | |
180 | SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED), | |
181 | SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS), | |
182 | SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED), | |
183 | SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED), | |
184 | SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED), | |
185 | SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS), | |
186 | SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS), | |
187 | SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER), | |
188 | SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED), | |
189 | SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED), | |
190 | SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED), | |
191 | SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED), | |
192 | SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED), | |
193 | SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED), | |
194 | SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS), | |
195 | SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED), | |
196 | SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST), | |
197 | SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS), | |
198 | SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS), | |
199 | SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED), | |
200 | SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG), | |
201 | SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE), | |
202 | SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED), | |
203 | SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS), | |
204 | SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER), | |
205 | SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS), | |
206 | SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS), | |
207 | SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY), | |
208 | SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY), | |
209 | SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING), | |
210 | SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER), | |
211 | SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER), | |
212 | SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER), | |
213 | SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER), | |
214 | SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO), | |
215 | SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO), | |
216 | SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO), | |
217 | SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO), | |
218 | SNMP_MIB_ITEM("TCPLoss", LINUX_MIB_TCPLOSS), | |
219 | SNMP_MIB_ITEM("TCPLostRetransmit", LINUX_MIB_TCPLOSTRETRANSMIT), | |
220 | SNMP_MIB_ITEM("TCPRenoFailures", LINUX_MIB_TCPRENOFAILURES), | |
221 | SNMP_MIB_ITEM("TCPSackFailures", LINUX_MIB_TCPSACKFAILURES), | |
222 | SNMP_MIB_ITEM("TCPLossFailures", LINUX_MIB_TCPLOSSFAILURES), | |
223 | SNMP_MIB_ITEM("TCPFastRetrans", LINUX_MIB_TCPFASTRETRANS), | |
224 | SNMP_MIB_ITEM("TCPForwardRetrans", LINUX_MIB_TCPFORWARDRETRANS), | |
225 | SNMP_MIB_ITEM("TCPSlowStartRetrans", LINUX_MIB_TCPSLOWSTARTRETRANS), | |
226 | SNMP_MIB_ITEM("TCPTimeouts", LINUX_MIB_TCPTIMEOUTS), | |
227 | SNMP_MIB_ITEM("TCPRenoRecoveryFail", LINUX_MIB_TCPRENORECOVERYFAIL), | |
228 | SNMP_MIB_ITEM("TCPSackRecoveryFail", LINUX_MIB_TCPSACKRECOVERYFAIL), | |
229 | SNMP_MIB_ITEM("TCPSchedulerFailed", LINUX_MIB_TCPSCHEDULERFAILED), | |
230 | SNMP_MIB_ITEM("TCPRcvCollapsed", LINUX_MIB_TCPRCVCOLLAPSED), | |
231 | SNMP_MIB_ITEM("TCPDSACKOldSent", LINUX_MIB_TCPDSACKOLDSENT), | |
232 | SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT), | |
233 | SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV), | |
234 | SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV), | |
235 | SNMP_MIB_ITEM("TCPAbortOnSyn", LINUX_MIB_TCPABORTONSYN), | |
236 | SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA), | |
237 | SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE), | |
238 | SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY), | |
239 | SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT), | |
240 | SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER), | |
241 | SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED), | |
242 | SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES), | |
18f02545 IJ |
243 | SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD), |
244 | SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD), | |
245 | SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO), | |
912d8f0b | 246 | SNMP_MIB_ITEM("TCPSpuriousRTOs", LINUX_MIB_TCPSPURIOUSRTOS), |
785957d3 DM |
247 | SNMP_MIB_ITEM("TCPMD5NotFound", LINUX_MIB_TCPMD5NOTFOUND), |
248 | SNMP_MIB_ITEM("TCPMD5Unexpected", LINUX_MIB_TCPMD5UNEXPECTED), | |
111cc8b9 IJ |
249 | SNMP_MIB_ITEM("TCPSackShifted", LINUX_MIB_SACKSHIFTED), |
250 | SNMP_MIB_ITEM("TCPSackMerged", LINUX_MIB_SACKMERGED), | |
251 | SNMP_MIB_ITEM("TCPSackShiftFallback", LINUX_MIB_SACKSHIFTFALLBACK), | |
6cce09f8 ED |
252 | SNMP_MIB_ITEM("TCPBacklogDrop", LINUX_MIB_TCPBACKLOGDROP), |
253 | SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP), | |
907cdda5 | 254 | SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP), |
b5f7e755 | 255 | SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER), |
67631510 | 256 | SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW), |
1da177e4 LT |
257 | SNMP_MIB_SENTINEL |
258 | }; | |
259 | ||
b971e7ac ED |
260 | static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals, |
261 | unsigned short *type, int count) | |
262 | { | |
263 | int j; | |
264 | ||
265 | if (count) { | |
266 | seq_printf(seq, "\nIcmpMsg:"); | |
267 | for (j = 0; j < count; ++j) | |
268 | seq_printf(seq, " %sType%u", | |
269 | type[j] & 0x100 ? "Out" : "In", | |
270 | type[j] & 0xff); | |
271 | seq_printf(seq, "\nIcmpMsg:"); | |
272 | for (j = 0; j < count; ++j) | |
273 | seq_printf(seq, " %lu", vals[j]); | |
274 | } | |
275 | } | |
276 | ||
96793b48 DS |
277 | static void icmpmsg_put(struct seq_file *seq) |
278 | { | |
279 | #define PERLINE 16 | |
280 | ||
b971e7ac ED |
281 | int i, count; |
282 | unsigned short type[PERLINE]; | |
283 | unsigned long vals[PERLINE], val; | |
229bf0cb | 284 | struct net *net = seq->private; |
96793b48 DS |
285 | |
286 | count = 0; | |
287 | for (i = 0; i < ICMPMSG_MIB_MAX; i++) { | |
7d720c3e | 288 | val = snmp_fold_field((void __percpu **) net->mib.icmpmsg_statistics, i); |
b971e7ac ED |
289 | if (val) { |
290 | type[count] = i; | |
291 | vals[count++] = val; | |
292 | } | |
293 | if (count == PERLINE) { | |
294 | icmpmsg_put_line(seq, vals, type, count); | |
295 | count = 0; | |
296 | } | |
96793b48 | 297 | } |
b971e7ac | 298 | icmpmsg_put_line(seq, vals, type, count); |
96793b48 DS |
299 | |
300 | #undef PERLINE | |
301 | } | |
302 | ||
303 | static void icmp_put(struct seq_file *seq) | |
304 | { | |
305 | int i; | |
229bf0cb | 306 | struct net *net = seq->private; |
96793b48 DS |
307 | |
308 | seq_puts(seq, "\nIcmp: InMsgs InErrors"); | |
309 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
310 | seq_printf(seq, " In%s", icmpmibmap[i].name); | |
311 | seq_printf(seq, " OutMsgs OutErrors"); | |
312 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
313 | seq_printf(seq, " Out%s", icmpmibmap[i].name); | |
314 | seq_printf(seq, "\nIcmp: %lu %lu", | |
7d720c3e TH |
315 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INMSGS), |
316 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INERRORS)); | |
96793b48 DS |
317 | for (i=0; icmpmibmap[i].name != NULL; i++) |
318 | seq_printf(seq, " %lu", | |
7d720c3e | 319 | snmp_fold_field((void __percpu **) net->mib.icmpmsg_statistics, |
96793b48 DS |
320 | icmpmibmap[i].index)); |
321 | seq_printf(seq, " %lu %lu", | |
7d720c3e TH |
322 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS), |
323 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS)); | |
96793b48 DS |
324 | for (i=0; icmpmibmap[i].name != NULL; i++) |
325 | seq_printf(seq, " %lu", | |
7d720c3e | 326 | snmp_fold_field((void __percpu **) net->mib.icmpmsg_statistics, |
064f3605 | 327 | icmpmibmap[i].index | 0x100)); |
96793b48 DS |
328 | } |
329 | ||
1da177e4 LT |
330 | /* |
331 | * Called from the PROCfs module. This outputs /proc/net/snmp. | |
332 | */ | |
333 | static int snmp_seq_show(struct seq_file *seq, void *v) | |
334 | { | |
335 | int i; | |
229bf0cb | 336 | struct net *net = seq->private; |
1da177e4 LT |
337 | |
338 | seq_puts(seq, "Ip: Forwarding DefaultTTL"); | |
339 | ||
340 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
341 | seq_printf(seq, " %s", snmp4_ipstats_list[i].name); | |
342 | ||
343 | seq_printf(seq, "\nIp: %d %d", | |
8e3461d0 | 344 | IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2, |
586f1211 | 345 | sysctl_ip_default_ttl); |
1da177e4 | 346 | |
4ce3c183 | 347 | BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0); |
1da177e4 | 348 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) |
4ce3c183 ED |
349 | seq_printf(seq, " %llu", |
350 | snmp_fold_field64((void __percpu **)net->mib.ip_statistics, | |
351 | snmp4_ipstats_list[i].entry, | |
352 | offsetof(struct ipstats_mib, syncp))); | |
1da177e4 | 353 | |
96793b48 DS |
354 | icmp_put(seq); /* RFC 2011 compatibility */ |
355 | icmpmsg_put(seq); | |
1da177e4 LT |
356 | |
357 | seq_puts(seq, "\nTcp:"); | |
358 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) | |
359 | seq_printf(seq, " %s", snmp4_tcp_list[i].name); | |
360 | ||
361 | seq_puts(seq, "\nTcp:"); | |
362 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) { | |
363 | /* MaxConn field is signed, RFC 2012 */ | |
364 | if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN) | |
365 | seq_printf(seq, " %ld", | |
7d720c3e | 366 | snmp_fold_field((void __percpu **)net->mib.tcp_statistics, |
5e0f0435 | 367 | snmp4_tcp_list[i].entry)); |
1da177e4 LT |
368 | else |
369 | seq_printf(seq, " %lu", | |
7d720c3e | 370 | snmp_fold_field((void __percpu **)net->mib.tcp_statistics, |
5e0f0435 | 371 | snmp4_tcp_list[i].entry)); |
1da177e4 LT |
372 | } |
373 | ||
374 | seq_puts(seq, "\nUdp:"); | |
375 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
376 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
377 | ||
378 | seq_puts(seq, "\nUdp:"); | |
379 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
380 | seq_printf(seq, " %lu", | |
7d720c3e | 381 | snmp_fold_field((void __percpu **)net->mib.udp_statistics, |
5e0f0435 | 382 | snmp4_udp_list[i].entry)); |
1da177e4 | 383 | |
ba4e58ec GR |
384 | /* the UDP and UDP-Lite MIBs are the same */ |
385 | seq_puts(seq, "\nUdpLite:"); | |
386 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
387 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
388 | ||
389 | seq_puts(seq, "\nUdpLite:"); | |
390 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
391 | seq_printf(seq, " %lu", | |
7d720c3e | 392 | snmp_fold_field((void __percpu **)net->mib.udplite_statistics, |
5e0f0435 | 393 | snmp4_udp_list[i].entry)); |
db8dac20 | 394 | |
1da177e4 LT |
395 | seq_putc(seq, '\n'); |
396 | return 0; | |
397 | } | |
398 | ||
399 | static int snmp_seq_open(struct inode *inode, struct file *file) | |
400 | { | |
de05c557 | 401 | return single_open_net(inode, file, snmp_seq_show); |
229bf0cb PE |
402 | } |
403 | ||
9a32144e | 404 | static const struct file_operations snmp_seq_fops = { |
1da177e4 LT |
405 | .owner = THIS_MODULE, |
406 | .open = snmp_seq_open, | |
407 | .read = seq_read, | |
408 | .llseek = seq_lseek, | |
b6fcbdb4 | 409 | .release = single_release_net, |
1da177e4 LT |
410 | }; |
411 | ||
96793b48 DS |
412 | |
413 | ||
1da177e4 LT |
414 | /* |
415 | * Output /proc/net/netstat | |
416 | */ | |
417 | static int netstat_seq_show(struct seq_file *seq, void *v) | |
418 | { | |
419 | int i; | |
7b7a9dfd | 420 | struct net *net = seq->private; |
1da177e4 LT |
421 | |
422 | seq_puts(seq, "TcpExt:"); | |
423 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
424 | seq_printf(seq, " %s", snmp4_net_list[i].name); | |
425 | ||
426 | seq_puts(seq, "\nTcpExt:"); | |
427 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
428 | seq_printf(seq, " %lu", | |
7d720c3e | 429 | snmp_fold_field((void __percpu **)net->mib.net_statistics, |
5e0f0435 | 430 | snmp4_net_list[i].entry)); |
1da177e4 | 431 | |
d831666e MC |
432 | seq_puts(seq, "\nIpExt:"); |
433 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
434 | seq_printf(seq, " %s", snmp4_ipextstats_list[i].name); | |
435 | ||
436 | seq_puts(seq, "\nIpExt:"); | |
437 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
4ce3c183 ED |
438 | seq_printf(seq, " %llu", |
439 | snmp_fold_field64((void __percpu **)net->mib.ip_statistics, | |
440 | snmp4_ipextstats_list[i].entry, | |
441 | offsetof(struct ipstats_mib, syncp))); | |
d831666e | 442 | |
1da177e4 LT |
443 | seq_putc(seq, '\n'); |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int netstat_seq_open(struct inode *inode, struct file *file) | |
448 | { | |
de05c557 | 449 | return single_open_net(inode, file, netstat_seq_show); |
7b7a9dfd PE |
450 | } |
451 | ||
9a32144e | 452 | static const struct file_operations netstat_seq_fops = { |
1da177e4 LT |
453 | .owner = THIS_MODULE, |
454 | .open = netstat_seq_open, | |
455 | .read = seq_read, | |
456 | .llseek = seq_lseek, | |
b6fcbdb4 | 457 | .release = single_release_net, |
1da177e4 LT |
458 | }; |
459 | ||
d0538ca3 PE |
460 | static __net_init int ip_proc_init_net(struct net *net) |
461 | { | |
462 | if (!proc_net_fops_create(net, "sockstat", S_IRUGO, &sockstat_seq_fops)) | |
60bdde95 | 463 | goto out_sockstat; |
7b7a9dfd PE |
464 | if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops)) |
465 | goto out_netstat; | |
229bf0cb PE |
466 | if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops)) |
467 | goto out_snmp; | |
7b7a9dfd | 468 | |
d0538ca3 | 469 | return 0; |
7b7a9dfd | 470 | |
229bf0cb PE |
471 | out_snmp: |
472 | proc_net_remove(net, "netstat"); | |
7b7a9dfd PE |
473 | out_netstat: |
474 | proc_net_remove(net, "sockstat"); | |
60bdde95 | 475 | out_sockstat: |
7b7a9dfd | 476 | return -ENOMEM; |
d0538ca3 PE |
477 | } |
478 | ||
479 | static __net_exit void ip_proc_exit_net(struct net *net) | |
480 | { | |
229bf0cb | 481 | proc_net_remove(net, "snmp"); |
7b7a9dfd | 482 | proc_net_remove(net, "netstat"); |
d0538ca3 PE |
483 | proc_net_remove(net, "sockstat"); |
484 | } | |
485 | ||
486 | static __net_initdata struct pernet_operations ip_proc_ops = { | |
487 | .init = ip_proc_init_net, | |
488 | .exit = ip_proc_exit_net, | |
489 | }; | |
490 | ||
1da177e4 LT |
491 | int __init ip_misc_proc_init(void) |
492 | { | |
60bdde95 | 493 | return register_pernet_subsys(&ip_proc_ops); |
1da177e4 | 494 | } |
33490170 | 495 |