projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
net: add moduleparam.h for users of module_param/MODULE_PARM_DESC
[deliverable/linux.git] / net / ipv4 / proc.c
CommitLineData
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 */
51static 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
78static 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 83static 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 92static 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 */
114static 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		 130static 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 149static 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 167static 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 177static 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),
946cedcc
ED		 257 SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES),
258 SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP),
1da177e4
LT		 259 SNMP_MIB_SENTINEL
260};
261
b971e7ac
ED		 262static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals,
263 unsigned short *type, int count)
264{
265 int j;
266
267 if (count) {
268 seq_printf(seq, "\nIcmpMsg:");
269 for (j = 0; j < count; ++j)
270 seq_printf(seq, " %sType%u",
271 type[j] & 0x100 ? "Out" : "In",
272 type[j] & 0xff);
273 seq_printf(seq, "\nIcmpMsg:");
274 for (j = 0; j < count; ++j)
275 seq_printf(seq, " %lu", vals[j]);
276 }
277}
278
96793b48
DS		 279static void icmpmsg_put(struct seq_file *seq)
280{
281#define PERLINE 16
282
b971e7ac
ED		 283 int i, count;
284 unsigned short type[PERLINE];
285 unsigned long vals[PERLINE], val;
229bf0cb 286 struct net *net = seq->private;
96793b48
DS		 287
288 count = 0;
289 for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
7d720c3e 290 val = snmp_fold_field((void __percpu **) net->mib.icmpmsg_statistics, i);
b971e7ac
ED		 291 if (val) {
292 type[count] = i;
293 vals[count++] = val;
294 }
295 if (count == PERLINE) {
296 icmpmsg_put_line(seq, vals, type, count);
297 count = 0;
298 }
96793b48 299 }
b971e7ac 300 icmpmsg_put_line(seq, vals, type, count);
96793b48
DS		 301
302#undef PERLINE
303}
304
305static void icmp_put(struct seq_file *seq)
306{
307 int i;
229bf0cb 308 struct net *net = seq->private;
96793b48
DS		 309
310 seq_puts(seq, "\nIcmp: InMsgs InErrors");
311 for (i=0; icmpmibmap[i].name != NULL; i++)
312 seq_printf(seq, " In%s", icmpmibmap[i].name);
313 seq_printf(seq, " OutMsgs OutErrors");
314 for (i=0; icmpmibmap[i].name != NULL; i++)
315 seq_printf(seq, " Out%s", icmpmibmap[i].name);
316 seq_printf(seq, "\nIcmp: %lu %lu",
7d720c3e
TH		 317 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INMSGS),
318 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INERRORS));
96793b48
DS		 319 for (i=0; icmpmibmap[i].name != NULL; i++)
320 seq_printf(seq, " %lu",
7d720c3e 321 snmp_fold_field((void __percpu **) net->mib.icmpmsg_statistics,
96793b48
DS		 322 icmpmibmap[i].index));
323 seq_printf(seq, " %lu %lu",
7d720c3e
TH		 324 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
325 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
96793b48
DS		 326 for (i=0; icmpmibmap[i].name != NULL; i++)
327 seq_printf(seq, " %lu",
7d720c3e 328 snmp_fold_field((void __percpu **) net->mib.icmpmsg_statistics,
064f3605 329 icmpmibmap[i].index | 0x100));
96793b48
DS		 330}
331
1da177e4
LT		 332/*
333 * Called from the PROCfs module. This outputs /proc/net/snmp.
334 */
335static int snmp_seq_show(struct seq_file *seq, void *v)
336{
337 int i;
229bf0cb 338 struct net *net = seq->private;
1da177e4
LT		 339
340 seq_puts(seq, "Ip: Forwarding DefaultTTL");
341
342 for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
343 seq_printf(seq, " %s", snmp4_ipstats_list[i].name);
344
345 seq_printf(seq, "\nIp: %d %d",
8e3461d0 346 IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2,
586f1211 347 sysctl_ip_default_ttl);
1da177e4 348
4ce3c183 349 BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0);
1da177e4 350 for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
4ce3c183
ED		 351 seq_printf(seq, " %llu",
352 snmp_fold_field64((void __percpu **)net->mib.ip_statistics,
353 snmp4_ipstats_list[i].entry,
354 offsetof(struct ipstats_mib, syncp)));
1da177e4 355
96793b48
DS		 356 icmp_put(seq); /* RFC 2011 compatibility */
357 icmpmsg_put(seq);
1da177e4
LT		 358
359 seq_puts(seq, "\nTcp:");
360 for (i = 0; snmp4_tcp_list[i].name != NULL; i++)
361 seq_printf(seq, " %s", snmp4_tcp_list[i].name);
362
363 seq_puts(seq, "\nTcp:");
364 for (i = 0; snmp4_tcp_list[i].name != NULL; i++) {
365 /* MaxConn field is signed, RFC 2012 */
366 if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
367 seq_printf(seq, " %ld",
7d720c3e 368 snmp_fold_field((void __percpu **)net->mib.tcp_statistics,
5e0f0435 369 snmp4_tcp_list[i].entry));
1da177e4
LT		 370 else
371 seq_printf(seq, " %lu",
7d720c3e 372 snmp_fold_field((void __percpu **)net->mib.tcp_statistics,
5e0f0435 373 snmp4_tcp_list[i].entry));
1da177e4
LT		 374 }
375
376 seq_puts(seq, "\nUdp:");
377 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
378 seq_printf(seq, " %s", snmp4_udp_list[i].name);
379
380 seq_puts(seq, "\nUdp:");
381 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
382 seq_printf(seq, " %lu",
7d720c3e 383 snmp_fold_field((void __percpu **)net->mib.udp_statistics,
5e0f0435 384 snmp4_udp_list[i].entry));
1da177e4 385
ba4e58ec
GR		 386 /* the UDP and UDP-Lite MIBs are the same */
387 seq_puts(seq, "\nUdpLite:");
388 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
389 seq_printf(seq, " %s", snmp4_udp_list[i].name);
390
391 seq_puts(seq, "\nUdpLite:");
392 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
393 seq_printf(seq, " %lu",
7d720c3e 394 snmp_fold_field((void __percpu **)net->mib.udplite_statistics,
5e0f0435 395 snmp4_udp_list[i].entry));
db8dac20 396
1da177e4
LT		 397 seq_putc(seq, '\n');
398 return 0;
399}
400
401static int snmp_seq_open(struct inode *inode, struct file *file)
402{
de05c557 403 return single_open_net(inode, file, snmp_seq_show);
229bf0cb
PE		 404}
405
9a32144e 406static const struct file_operations snmp_seq_fops = {
1da177e4
LT		 407 .owner = THIS_MODULE,
408 .open = snmp_seq_open,
409 .read = seq_read,
410 .llseek = seq_lseek,
b6fcbdb4 411 .release = single_release_net,
1da177e4
LT		 412};
413
96793b48
DS		 414
415
1da177e4
LT		 416/*
417 * Output /proc/net/netstat
418 */
419static int netstat_seq_show(struct seq_file *seq, void *v)
420{
421 int i;
7b7a9dfd 422 struct net *net = seq->private;
1da177e4
LT		 423
424 seq_puts(seq, "TcpExt:");
425 for (i = 0; snmp4_net_list[i].name != NULL; i++)
426 seq_printf(seq, " %s", snmp4_net_list[i].name);
427
428 seq_puts(seq, "\nTcpExt:");
429 for (i = 0; snmp4_net_list[i].name != NULL; i++)
430 seq_printf(seq, " %lu",
7d720c3e 431 snmp_fold_field((void __percpu **)net->mib.net_statistics,
5e0f0435 432 snmp4_net_list[i].entry));
1da177e4 433
d831666e
MC		 434 seq_puts(seq, "\nIpExt:");
435 for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
436 seq_printf(seq, " %s", snmp4_ipextstats_list[i].name);
437
438 seq_puts(seq, "\nIpExt:");
439 for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
4ce3c183
ED		 440 seq_printf(seq, " %llu",
441 snmp_fold_field64((void __percpu **)net->mib.ip_statistics,
442 snmp4_ipextstats_list[i].entry,
443 offsetof(struct ipstats_mib, syncp)));
d831666e 444
1da177e4
LT		 445 seq_putc(seq, '\n');
446 return 0;
447}
448
449static int netstat_seq_open(struct inode *inode, struct file *file)
450{
de05c557 451 return single_open_net(inode, file, netstat_seq_show);
7b7a9dfd
PE		 452}
453
9a32144e 454static const struct file_operations netstat_seq_fops = {
1da177e4
LT		 455 .owner = THIS_MODULE,
456 .open = netstat_seq_open,
457 .read = seq_read,
458 .llseek = seq_lseek,
b6fcbdb4 459 .release = single_release_net,
1da177e4
LT		 460};
461
d0538ca3
PE		 462static __net_init int ip_proc_init_net(struct net *net)
463{
464 if (!proc_net_fops_create(net, "sockstat", S_IRUGO, &sockstat_seq_fops))
60bdde95 465 goto out_sockstat;
7b7a9dfd
PE		 466 if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops))
467 goto out_netstat;
229bf0cb
PE		 468 if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops))
469 goto out_snmp;
7b7a9dfd 470
d0538ca3 471 return 0;
7b7a9dfd 472
229bf0cb
PE		 473out_snmp:
474 proc_net_remove(net, "netstat");
7b7a9dfd
PE		 475out_netstat:
476 proc_net_remove(net, "sockstat");
60bdde95 477out_sockstat:
7b7a9dfd 478 return -ENOMEM;
d0538ca3
PE		 479}
480
481static __net_exit void ip_proc_exit_net(struct net *net)
482{
229bf0cb 483 proc_net_remove(net, "snmp");
7b7a9dfd 484 proc_net_remove(net, "netstat");
d0538ca3
PE		 485 proc_net_remove(net, "sockstat");
486}
487
488static __net_initdata struct pernet_operations ip_proc_ops = {
489 .init = ip_proc_init_net,
490 .exit = ip_proc_exit_net,
491};
492
1da177e4
LT		 493int __init ip_misc_proc_init(void)
494{
60bdde95 495 return register_pernet_subsys(&ip_proc_ops);
1da177e4 496}
33490170 497
Linux kernel - Deliverables
This page took 0.929945 seconds and 5 git commands to generate.