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34#include <linux/types.h>
35#include <net/net_namespace.h>
36#include <net/icmp.h>
37#include <net/protocol.h>
38#include <net/tcp.h>
39#include <net/udp.h>
40#include <net/udplite.h>
41#include <linux/bottom_half.h>
42#include <linux/inetdevice.h>
43#include <linux/proc_fs.h>
44#include <linux/seq_file.h>
45#include <linux/export.h>
46#include <net/sock.h>
47#include <net/raw.h>
48
49
50
51
52static int sockstat_seq_show(struct seq_file *seq, void *v)
53{
54 struct net *net = seq->private;
55 int orphans, sockets;
56
57 local_bh_disable();
58 orphans = percpu_counter_sum_positive(&tcp_orphan_count);
59 sockets = proto_sockets_allocated_sum_positive(&tcp_prot);
60 local_bh_enable();
61
62 socket_seq_show(seq);
63 seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %ld\n",
64 sock_prot_inuse_get(net, &tcp_prot), orphans,
65 tcp_death_row.tw_count, sockets,
66 proto_memory_allocated(&tcp_prot));
67 seq_printf(seq, "UDP: inuse %d mem %ld\n",
68 sock_prot_inuse_get(net, &udp_prot),
69 proto_memory_allocated(&udp_prot));
70 seq_printf(seq, "UDPLITE: inuse %d\n",
71 sock_prot_inuse_get(net, &udplite_prot));
72 seq_printf(seq, "RAW: inuse %d\n",
73 sock_prot_inuse_get(net, &raw_prot));
74 seq_printf(seq, "FRAG: inuse %d memory %d\n",
75 ip_frag_nqueues(net), ip_frag_mem(net));
76 return 0;
77}
78
79static int sockstat_seq_open(struct inode *inode, struct file *file)
80{
81 return single_open_net(inode, file, sockstat_seq_show);
82}
83
84static const struct file_operations sockstat_seq_fops = {
85 .owner = THIS_MODULE,
86 .open = sockstat_seq_open,
87 .read = seq_read,
88 .llseek = seq_lseek,
89 .release = single_release_net,
90};
91
92
93static const struct snmp_mib snmp4_ipstats_list[] = {
94 SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS),
95 SNMP_MIB_ITEM("InHdrErrors", IPSTATS_MIB_INHDRERRORS),
96 SNMP_MIB_ITEM("InAddrErrors", IPSTATS_MIB_INADDRERRORS),
97 SNMP_MIB_ITEM("ForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
98 SNMP_MIB_ITEM("InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
99 SNMP_MIB_ITEM("InDiscards", IPSTATS_MIB_INDISCARDS),
100 SNMP_MIB_ITEM("InDelivers", IPSTATS_MIB_INDELIVERS),
101 SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTPKTS),
102 SNMP_MIB_ITEM("OutDiscards", IPSTATS_MIB_OUTDISCARDS),
103 SNMP_MIB_ITEM("OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
104 SNMP_MIB_ITEM("ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
105 SNMP_MIB_ITEM("ReasmReqds", IPSTATS_MIB_REASMREQDS),
106 SNMP_MIB_ITEM("ReasmOKs", IPSTATS_MIB_REASMOKS),
107 SNMP_MIB_ITEM("ReasmFails", IPSTATS_MIB_REASMFAILS),
108 SNMP_MIB_ITEM("FragOKs", IPSTATS_MIB_FRAGOKS),
109 SNMP_MIB_ITEM("FragFails", IPSTATS_MIB_FRAGFAILS),
110 SNMP_MIB_ITEM("FragCreates", IPSTATS_MIB_FRAGCREATES),
111 SNMP_MIB_SENTINEL
112};
113
114
115static const struct snmp_mib snmp4_ipextstats_list[] = {
116 SNMP_MIB_ITEM("InNoRoutes", IPSTATS_MIB_INNOROUTES),
117 SNMP_MIB_ITEM("InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
118 SNMP_MIB_ITEM("InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
119 SNMP_MIB_ITEM("OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
120 SNMP_MIB_ITEM("InBcastPkts", IPSTATS_MIB_INBCASTPKTS),
121 SNMP_MIB_ITEM("OutBcastPkts", IPSTATS_MIB_OUTBCASTPKTS),
122 SNMP_MIB_ITEM("InOctets", IPSTATS_MIB_INOCTETS),
123 SNMP_MIB_ITEM("OutOctets", IPSTATS_MIB_OUTOCTETS),
124 SNMP_MIB_ITEM("InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
125 SNMP_MIB_ITEM("OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
126 SNMP_MIB_ITEM("InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
127 SNMP_MIB_ITEM("OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
128 SNMP_MIB_SENTINEL
129};
130
131static const struct {
132 const char *name;
133 int index;
134} icmpmibmap[] = {
135 { "DestUnreachs", ICMP_DEST_UNREACH },
136 { "TimeExcds", ICMP_TIME_EXCEEDED },
137 { "ParmProbs", ICMP_PARAMETERPROB },
138 { "SrcQuenchs", ICMP_SOURCE_QUENCH },
139 { "Redirects", ICMP_REDIRECT },
140 { "Echos", ICMP_ECHO },
141 { "EchoReps", ICMP_ECHOREPLY },
142 { "Timestamps", ICMP_TIMESTAMP },
143 { "TimestampReps", ICMP_TIMESTAMPREPLY },
144 { "AddrMasks", ICMP_ADDRESS },
145 { "AddrMaskReps", ICMP_ADDRESSREPLY },
146 { NULL, 0 }
147};
148
149
150static const struct snmp_mib snmp4_tcp_list[] = {
151 SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM),
152 SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN),
153 SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX),
154 SNMP_MIB_ITEM("MaxConn", TCP_MIB_MAXCONN),
155 SNMP_MIB_ITEM("ActiveOpens", TCP_MIB_ACTIVEOPENS),
156 SNMP_MIB_ITEM("PassiveOpens", TCP_MIB_PASSIVEOPENS),
157 SNMP_MIB_ITEM("AttemptFails", TCP_MIB_ATTEMPTFAILS),
158 SNMP_MIB_ITEM("EstabResets", TCP_MIB_ESTABRESETS),
159 SNMP_MIB_ITEM("CurrEstab", TCP_MIB_CURRESTAB),
160 SNMP_MIB_ITEM("InSegs", TCP_MIB_INSEGS),
161 SNMP_MIB_ITEM("OutSegs", TCP_MIB_OUTSEGS),
162 SNMP_MIB_ITEM("RetransSegs", TCP_MIB_RETRANSSEGS),
163 SNMP_MIB_ITEM("InErrs", TCP_MIB_INERRS),
164 SNMP_MIB_ITEM("OutRsts", TCP_MIB_OUTRSTS),
165 SNMP_MIB_SENTINEL
166};
167
168static const struct snmp_mib snmp4_udp_list[] = {
169 SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS),
170 SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS),
171 SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS),
172 SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS),
173 SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS),
174 SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS),
175 SNMP_MIB_SENTINEL
176};
177
178static const struct snmp_mib snmp4_net_list[] = {
179 SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT),
180 SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV),
181 SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED),
182 SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS),
183 SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED),
184 SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED),
185 SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED),
186 SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS),
187 SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS),
188 SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER),
189 SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED),
190 SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED),
191 SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED),
192 SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED),
193 SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED),
194 SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED),
195 SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS),
196 SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED),
197 SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST),
198 SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS),
199 SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS),
200 SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED),
201 SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG),
202 SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE),
203 SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED),
204 SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS),
205 SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER),
206 SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS),
207 SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS),
208 SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY),
209 SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY),
210 SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING),
211 SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER),
212 SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER),
213 SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER),
214 SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER),
215 SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO),
216 SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO),
217 SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO),
218 SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO),
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("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA),
236 SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE),
237 SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY),
238 SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT),
239 SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER),
240 SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED),
241 SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES),
242 SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD),
243 SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD),
244 SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO),
245 SNMP_MIB_ITEM("TCPSpuriousRTOs", LINUX_MIB_TCPSPURIOUSRTOS),
246 SNMP_MIB_ITEM("TCPMD5NotFound", LINUX_MIB_TCPMD5NOTFOUND),
247 SNMP_MIB_ITEM("TCPMD5Unexpected", LINUX_MIB_TCPMD5UNEXPECTED),
248 SNMP_MIB_ITEM("TCPSackShifted", LINUX_MIB_SACKSHIFTED),
249 SNMP_MIB_ITEM("TCPSackMerged", LINUX_MIB_SACKMERGED),
250 SNMP_MIB_ITEM("TCPSackShiftFallback", LINUX_MIB_SACKSHIFTFALLBACK),
251 SNMP_MIB_ITEM("TCPBacklogDrop", LINUX_MIB_TCPBACKLOGDROP),
252 SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP),
253 SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP),
254 SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER),
255 SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW),
256 SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES),
257 SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP),
258 SNMP_MIB_ITEM("TCPRetransFail", LINUX_MIB_TCPRETRANSFAIL),
259 SNMP_MIB_ITEM("TCPRcvCoalesce", LINUX_MIB_TCPRCVCOALESCE),
260 SNMP_MIB_ITEM("TCPOFOQueue", LINUX_MIB_TCPOFOQUEUE),
261 SNMP_MIB_ITEM("TCPOFODrop", LINUX_MIB_TCPOFODROP),
262 SNMP_MIB_ITEM("TCPOFOMerge", LINUX_MIB_TCPOFOMERGE),
263 SNMP_MIB_ITEM("TCPChallengeACK", LINUX_MIB_TCPCHALLENGEACK),
264 SNMP_MIB_ITEM("TCPSYNChallenge", LINUX_MIB_TCPSYNCHALLENGE),
265 SNMP_MIB_ITEM("TCPFastOpenActive", LINUX_MIB_TCPFASTOPENACTIVE),
266 SNMP_MIB_SENTINEL
267};
268
269static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals,
270 unsigned short *type, int count)
271{
272 int j;
273
274 if (count) {
275 seq_printf(seq, "\nIcmpMsg:");
276 for (j = 0; j < count; ++j)
277 seq_printf(seq, " %sType%u",
278 type[j] & 0x100 ? "Out" : "In",
279 type[j] & 0xff);
280 seq_printf(seq, "\nIcmpMsg:");
281 for (j = 0; j < count; ++j)
282 seq_printf(seq, " %lu", vals[j]);
283 }
284}
285
286static void icmpmsg_put(struct seq_file *seq)
287{
288#define PERLINE 16
289
290 int i, count;
291 unsigned short type[PERLINE];
292 unsigned long vals[PERLINE], val;
293 struct net *net = seq->private;
294
295 count = 0;
296 for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
297 val = atomic_long_read(&net->mib.icmpmsg_statistics->mibs[i]);
298 if (val) {
299 type[count] = i;
300 vals[count++] = val;
301 }
302 if (count == PERLINE) {
303 icmpmsg_put_line(seq, vals, type, count);
304 count = 0;
305 }
306 }
307 icmpmsg_put_line(seq, vals, type, count);
308
309#undef PERLINE
310}
311
312static void icmp_put(struct seq_file *seq)
313{
314 int i;
315 struct net *net = seq->private;
316 atomic_long_t *ptr = net->mib.icmpmsg_statistics->mibs;
317
318 seq_puts(seq, "\nIcmp: InMsgs InErrors");
319 for (i=0; icmpmibmap[i].name != NULL; i++)
320 seq_printf(seq, " In%s", icmpmibmap[i].name);
321 seq_printf(seq, " OutMsgs OutErrors");
322 for (i=0; icmpmibmap[i].name != NULL; i++)
323 seq_printf(seq, " Out%s", icmpmibmap[i].name);
324 seq_printf(seq, "\nIcmp: %lu %lu",
325 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INMSGS),
326 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INERRORS));
327 for (i=0; icmpmibmap[i].name != NULL; i++)
328 seq_printf(seq, " %lu",
329 atomic_long_read(ptr + icmpmibmap[i].index));
330 seq_printf(seq, " %lu %lu",
331 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
332 snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
333 for (i=0; icmpmibmap[i].name != NULL; i++)
334 seq_printf(seq, " %lu",
335 atomic_long_read(ptr + (icmpmibmap[i].index | 0x100)));
336}
337
338
339
340
341static int snmp_seq_show(struct seq_file *seq, void *v)
342{
343 int i;
344 struct net *net = seq->private;
345
346 seq_puts(seq, "Ip: Forwarding DefaultTTL");
347
348 for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
349 seq_printf(seq, " %s", snmp4_ipstats_list[i].name);
350
351 seq_printf(seq, "\nIp: %d %d",
352 IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2,
353 sysctl_ip_default_ttl);
354
355 BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0);
356 for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
357 seq_printf(seq, " %llu",
358 snmp_fold_field64((void __percpu **)net->mib.ip_statistics,
359 snmp4_ipstats_list[i].entry,
360 offsetof(struct ipstats_mib, syncp)));
361
362 icmp_put(seq);
363 icmpmsg_put(seq);
364
365 seq_puts(seq, "\nTcp:");
366 for (i = 0; snmp4_tcp_list[i].name != NULL; i++)
367 seq_printf(seq, " %s", snmp4_tcp_list[i].name);
368
369 seq_puts(seq, "\nTcp:");
370 for (i = 0; snmp4_tcp_list[i].name != NULL; i++) {
371
372 if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
373 seq_printf(seq, " %ld",
374 snmp_fold_field((void __percpu **)net->mib.tcp_statistics,
375 snmp4_tcp_list[i].entry));
376 else
377 seq_printf(seq, " %lu",
378 snmp_fold_field((void __percpu **)net->mib.tcp_statistics,
379 snmp4_tcp_list[i].entry));
380 }
381
382 seq_puts(seq, "\nUdp:");
383 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
384 seq_printf(seq, " %s", snmp4_udp_list[i].name);
385
386 seq_puts(seq, "\nUdp:");
387 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
388 seq_printf(seq, " %lu",
389 snmp_fold_field((void __percpu **)net->mib.udp_statistics,
390 snmp4_udp_list[i].entry));
391
392
393 seq_puts(seq, "\nUdpLite:");
394 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
395 seq_printf(seq, " %s", snmp4_udp_list[i].name);
396
397 seq_puts(seq, "\nUdpLite:");
398 for (i = 0; snmp4_udp_list[i].name != NULL; i++)
399 seq_printf(seq, " %lu",
400 snmp_fold_field((void __percpu **)net->mib.udplite_statistics,
401 snmp4_udp_list[i].entry));
402
403 seq_putc(seq, '\n');
404 return 0;
405}
406
407static int snmp_seq_open(struct inode *inode, struct file *file)
408{
409 return single_open_net(inode, file, snmp_seq_show);
410}
411
412static const struct file_operations snmp_seq_fops = {
413 .owner = THIS_MODULE,
414 .open = snmp_seq_open,
415 .read = seq_read,
416 .llseek = seq_lseek,
417 .release = single_release_net,
418};
419
420
421
422
423
424
425static int netstat_seq_show(struct seq_file *seq, void *v)
426{
427 int i;
428 struct net *net = seq->private;
429
430 seq_puts(seq, "TcpExt:");
431 for (i = 0; snmp4_net_list[i].name != NULL; i++)
432 seq_printf(seq, " %s", snmp4_net_list[i].name);
433
434 seq_puts(seq, "\nTcpExt:");
435 for (i = 0; snmp4_net_list[i].name != NULL; i++)
436 seq_printf(seq, " %lu",
437 snmp_fold_field((void __percpu **)net->mib.net_statistics,
438 snmp4_net_list[i].entry));
439
440 seq_puts(seq, "\nIpExt:");
441 for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
442 seq_printf(seq, " %s", snmp4_ipextstats_list[i].name);
443
444 seq_puts(seq, "\nIpExt:");
445 for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
446 seq_printf(seq, " %llu",
447 snmp_fold_field64((void __percpu **)net->mib.ip_statistics,
448 snmp4_ipextstats_list[i].entry,
449 offsetof(struct ipstats_mib, syncp)));
450
451 seq_putc(seq, '\n');
452 return 0;
453}
454
455static int netstat_seq_open(struct inode *inode, struct file *file)
456{
457 return single_open_net(inode, file, netstat_seq_show);
458}
459
460static const struct file_operations netstat_seq_fops = {
461 .owner = THIS_MODULE,
462 .open = netstat_seq_open,
463 .read = seq_read,
464 .llseek = seq_lseek,
465 .release = single_release_net,
466};
467
468static __net_init int ip_proc_init_net(struct net *net)
469{
470 if (!proc_net_fops_create(net, "sockstat", S_IRUGO, &sockstat_seq_fops))
471 goto out_sockstat;
472 if (!proc_net_fops_create(net, "netstat", S_IRUGO, &netstat_seq_fops))
473 goto out_netstat;
474 if (!proc_net_fops_create(net, "snmp", S_IRUGO, &snmp_seq_fops))
475 goto out_snmp;
476
477 return 0;
478
479out_snmp:
480 proc_net_remove(net, "netstat");
481out_netstat:
482 proc_net_remove(net, "sockstat");
483out_sockstat:
484 return -ENOMEM;
485}
486
487static __net_exit void ip_proc_exit_net(struct net *net)
488{
489 proc_net_remove(net, "snmp");
490 proc_net_remove(net, "netstat");
491 proc_net_remove(net, "sockstat");
492}
493
494static __net_initdata struct pernet_operations ip_proc_ops = {
495 .init = ip_proc_init_net,
496 .exit = ip_proc_exit_net,
497};
498
499int __init ip_misc_proc_init(void)
500{
501 return register_pernet_subsys(&ip_proc_ops);
502}
503
504
