]>
Commit | Line | Data |
---|---|---|
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 | * 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> | |
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 | * Report socket allocation statistics [mea@utu.fi] | |
51 | */ | |
52 | static 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 | ||
79 | static int sockstat_seq_open(struct inode *inode, struct file *file) | |
80 | { | |
81 | return single_open_net(inode, file, sockstat_seq_show); | |
82 | } | |
83 | ||
84 | static 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 | /* snmp items */ | |
93 | static 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 | /* Following items are displayed in /proc/net/netstat */ | |
115 | static 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 | /* Non RFC4293 fields */ | |
129 | SNMP_MIB_ITEM("InCsumErrors", IPSTATS_MIB_CSUMERRORS), | |
130 | SNMP_MIB_ITEM("InNoECTPkts", IPSTATS_MIB_NOECTPKTS), | |
131 | SNMP_MIB_ITEM("InECT1Pkts", IPSTATS_MIB_ECT1PKTS), | |
132 | SNMP_MIB_ITEM("InECT0Pkts", IPSTATS_MIB_ECT0PKTS), | |
133 | SNMP_MIB_ITEM("InCEPkts", IPSTATS_MIB_CEPKTS), | |
134 | SNMP_MIB_SENTINEL | |
135 | }; | |
136 | ||
137 | static const struct { | |
138 | const char *name; | |
139 | int index; | |
140 | } icmpmibmap[] = { | |
141 | { "DestUnreachs", ICMP_DEST_UNREACH }, | |
142 | { "TimeExcds", ICMP_TIME_EXCEEDED }, | |
143 | { "ParmProbs", ICMP_PARAMETERPROB }, | |
144 | { "SrcQuenchs", ICMP_SOURCE_QUENCH }, | |
145 | { "Redirects", ICMP_REDIRECT }, | |
146 | { "Echos", ICMP_ECHO }, | |
147 | { "EchoReps", ICMP_ECHOREPLY }, | |
148 | { "Timestamps", ICMP_TIMESTAMP }, | |
149 | { "TimestampReps", ICMP_TIMESTAMPREPLY }, | |
150 | { "AddrMasks", ICMP_ADDRESS }, | |
151 | { "AddrMaskReps", ICMP_ADDRESSREPLY }, | |
152 | { NULL, 0 } | |
153 | }; | |
154 | ||
155 | ||
156 | static const struct snmp_mib snmp4_tcp_list[] = { | |
157 | SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM), | |
158 | SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN), | |
159 | SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX), | |
160 | SNMP_MIB_ITEM("MaxConn", TCP_MIB_MAXCONN), | |
161 | SNMP_MIB_ITEM("ActiveOpens", TCP_MIB_ACTIVEOPENS), | |
162 | SNMP_MIB_ITEM("PassiveOpens", TCP_MIB_PASSIVEOPENS), | |
163 | SNMP_MIB_ITEM("AttemptFails", TCP_MIB_ATTEMPTFAILS), | |
164 | SNMP_MIB_ITEM("EstabResets", TCP_MIB_ESTABRESETS), | |
165 | SNMP_MIB_ITEM("CurrEstab", TCP_MIB_CURRESTAB), | |
166 | SNMP_MIB_ITEM("InSegs", TCP_MIB_INSEGS), | |
167 | SNMP_MIB_ITEM("OutSegs", TCP_MIB_OUTSEGS), | |
168 | SNMP_MIB_ITEM("RetransSegs", TCP_MIB_RETRANSSEGS), | |
169 | SNMP_MIB_ITEM("InErrs", TCP_MIB_INERRS), | |
170 | SNMP_MIB_ITEM("OutRsts", TCP_MIB_OUTRSTS), | |
171 | SNMP_MIB_ITEM("InCsumErrors", TCP_MIB_CSUMERRORS), | |
172 | SNMP_MIB_SENTINEL | |
173 | }; | |
174 | ||
175 | static const struct snmp_mib snmp4_udp_list[] = { | |
176 | SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS), | |
177 | SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS), | |
178 | SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS), | |
179 | SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
180 | SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS), | |
181 | SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS), | |
182 | SNMP_MIB_ITEM("InCsumErrors", UDP_MIB_CSUMERRORS), | |
183 | SNMP_MIB_SENTINEL | |
184 | }; | |
185 | ||
186 | static const struct snmp_mib snmp4_net_list[] = { | |
187 | SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT), | |
188 | SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV), | |
189 | SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED), | |
190 | SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS), | |
191 | SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED), | |
192 | SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED), | |
193 | SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED), | |
194 | SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS), | |
195 | SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS), | |
196 | SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER), | |
197 | SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED), | |
198 | SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED), | |
199 | SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED), | |
200 | SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED), | |
201 | SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED), | |
202 | SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED), | |
203 | SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS), | |
204 | SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED), | |
205 | SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST), | |
206 | SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS), | |
207 | SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS), | |
208 | SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED), | |
209 | SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG), | |
210 | SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE), | |
211 | SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED), | |
212 | SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS), | |
213 | SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER), | |
214 | SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS), | |
215 | SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS), | |
216 | SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY), | |
217 | SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY), | |
218 | SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING), | |
219 | SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER), | |
220 | SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER), | |
221 | SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER), | |
222 | SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER), | |
223 | SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO), | |
224 | SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO), | |
225 | SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO), | |
226 | SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO), | |
227 | SNMP_MIB_ITEM("TCPLostRetransmit", LINUX_MIB_TCPLOSTRETRANSMIT), | |
228 | SNMP_MIB_ITEM("TCPRenoFailures", LINUX_MIB_TCPRENOFAILURES), | |
229 | SNMP_MIB_ITEM("TCPSackFailures", LINUX_MIB_TCPSACKFAILURES), | |
230 | SNMP_MIB_ITEM("TCPLossFailures", LINUX_MIB_TCPLOSSFAILURES), | |
231 | SNMP_MIB_ITEM("TCPFastRetrans", LINUX_MIB_TCPFASTRETRANS), | |
232 | SNMP_MIB_ITEM("TCPForwardRetrans", LINUX_MIB_TCPFORWARDRETRANS), | |
233 | SNMP_MIB_ITEM("TCPSlowStartRetrans", LINUX_MIB_TCPSLOWSTARTRETRANS), | |
234 | SNMP_MIB_ITEM("TCPTimeouts", LINUX_MIB_TCPTIMEOUTS), | |
235 | SNMP_MIB_ITEM("TCPLossProbes", LINUX_MIB_TCPLOSSPROBES), | |
236 | SNMP_MIB_ITEM("TCPLossProbeRecovery", LINUX_MIB_TCPLOSSPROBERECOVERY), | |
237 | SNMP_MIB_ITEM("TCPRenoRecoveryFail", LINUX_MIB_TCPRENORECOVERYFAIL), | |
238 | SNMP_MIB_ITEM("TCPSackRecoveryFail", LINUX_MIB_TCPSACKRECOVERYFAIL), | |
239 | SNMP_MIB_ITEM("TCPSchedulerFailed", LINUX_MIB_TCPSCHEDULERFAILED), | |
240 | SNMP_MIB_ITEM("TCPRcvCollapsed", LINUX_MIB_TCPRCVCOLLAPSED), | |
241 | SNMP_MIB_ITEM("TCPDSACKOldSent", LINUX_MIB_TCPDSACKOLDSENT), | |
242 | SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT), | |
243 | SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV), | |
244 | SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV), | |
245 | SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA), | |
246 | SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE), | |
247 | SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY), | |
248 | SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT), | |
249 | SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER), | |
250 | SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED), | |
251 | SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES), | |
252 | SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD), | |
253 | SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD), | |
254 | SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO), | |
255 | SNMP_MIB_ITEM("TCPSpuriousRTOs", LINUX_MIB_TCPSPURIOUSRTOS), | |
256 | SNMP_MIB_ITEM("TCPMD5NotFound", LINUX_MIB_TCPMD5NOTFOUND), | |
257 | SNMP_MIB_ITEM("TCPMD5Unexpected", LINUX_MIB_TCPMD5UNEXPECTED), | |
258 | SNMP_MIB_ITEM("TCPSackShifted", LINUX_MIB_SACKSHIFTED), | |
259 | SNMP_MIB_ITEM("TCPSackMerged", LINUX_MIB_SACKMERGED), | |
260 | SNMP_MIB_ITEM("TCPSackShiftFallback", LINUX_MIB_SACKSHIFTFALLBACK), | |
261 | SNMP_MIB_ITEM("TCPBacklogDrop", LINUX_MIB_TCPBACKLOGDROP), | |
262 | SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP), | |
263 | SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP), | |
264 | SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER), | |
265 | SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW), | |
266 | SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES), | |
267 | SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP), | |
268 | SNMP_MIB_ITEM("TCPRetransFail", LINUX_MIB_TCPRETRANSFAIL), | |
269 | SNMP_MIB_ITEM("TCPRcvCoalesce", LINUX_MIB_TCPRCVCOALESCE), | |
270 | SNMP_MIB_ITEM("TCPOFOQueue", LINUX_MIB_TCPOFOQUEUE), | |
271 | SNMP_MIB_ITEM("TCPOFODrop", LINUX_MIB_TCPOFODROP), | |
272 | SNMP_MIB_ITEM("TCPOFOMerge", LINUX_MIB_TCPOFOMERGE), | |
273 | SNMP_MIB_ITEM("TCPChallengeACK", LINUX_MIB_TCPCHALLENGEACK), | |
274 | SNMP_MIB_ITEM("TCPSYNChallenge", LINUX_MIB_TCPSYNCHALLENGE), | |
275 | SNMP_MIB_ITEM("TCPFastOpenActive", LINUX_MIB_TCPFASTOPENACTIVE), | |
276 | SNMP_MIB_ITEM("TCPFastOpenPassive", LINUX_MIB_TCPFASTOPENPASSIVE), | |
277 | SNMP_MIB_ITEM("TCPFastOpenPassiveFail", LINUX_MIB_TCPFASTOPENPASSIVEFAIL), | |
278 | SNMP_MIB_ITEM("TCPFastOpenListenOverflow", LINUX_MIB_TCPFASTOPENLISTENOVERFLOW), | |
279 | SNMP_MIB_ITEM("TCPFastOpenCookieReqd", LINUX_MIB_TCPFASTOPENCOOKIEREQD), | |
280 | SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES), | |
281 | SNMP_MIB_ITEM("BusyPollRxPackets", LINUX_MIB_BUSYPOLLRXPACKETS), | |
282 | SNMP_MIB_ITEM("TCPAutoCorking", LINUX_MIB_TCPAUTOCORKING), | |
283 | SNMP_MIB_SENTINEL | |
284 | }; | |
285 | ||
286 | static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals, | |
287 | unsigned short *type, int count) | |
288 | { | |
289 | int j; | |
290 | ||
291 | if (count) { | |
292 | seq_printf(seq, "\nIcmpMsg:"); | |
293 | for (j = 0; j < count; ++j) | |
294 | seq_printf(seq, " %sType%u", | |
295 | type[j] & 0x100 ? "Out" : "In", | |
296 | type[j] & 0xff); | |
297 | seq_printf(seq, "\nIcmpMsg:"); | |
298 | for (j = 0; j < count; ++j) | |
299 | seq_printf(seq, " %lu", vals[j]); | |
300 | } | |
301 | } | |
302 | ||
303 | static void icmpmsg_put(struct seq_file *seq) | |
304 | { | |
305 | #define PERLINE 16 | |
306 | ||
307 | int i, count; | |
308 | unsigned short type[PERLINE]; | |
309 | unsigned long vals[PERLINE], val; | |
310 | struct net *net = seq->private; | |
311 | ||
312 | count = 0; | |
313 | for (i = 0; i < ICMPMSG_MIB_MAX; i++) { | |
314 | val = atomic_long_read(&net->mib.icmpmsg_statistics->mibs[i]); | |
315 | if (val) { | |
316 | type[count] = i; | |
317 | vals[count++] = val; | |
318 | } | |
319 | if (count == PERLINE) { | |
320 | icmpmsg_put_line(seq, vals, type, count); | |
321 | count = 0; | |
322 | } | |
323 | } | |
324 | icmpmsg_put_line(seq, vals, type, count); | |
325 | ||
326 | #undef PERLINE | |
327 | } | |
328 | ||
329 | static void icmp_put(struct seq_file *seq) | |
330 | { | |
331 | int i; | |
332 | struct net *net = seq->private; | |
333 | atomic_long_t *ptr = net->mib.icmpmsg_statistics->mibs; | |
334 | ||
335 | seq_puts(seq, "\nIcmp: InMsgs InErrors InCsumErrors"); | |
336 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
337 | seq_printf(seq, " In%s", icmpmibmap[i].name); | |
338 | seq_printf(seq, " OutMsgs OutErrors"); | |
339 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
340 | seq_printf(seq, " Out%s", icmpmibmap[i].name); | |
341 | seq_printf(seq, "\nIcmp: %lu %lu %lu", | |
342 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INMSGS), | |
343 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INERRORS), | |
344 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_CSUMERRORS)); | |
345 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
346 | seq_printf(seq, " %lu", | |
347 | atomic_long_read(ptr + icmpmibmap[i].index)); | |
348 | seq_printf(seq, " %lu %lu", | |
349 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS), | |
350 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS)); | |
351 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
352 | seq_printf(seq, " %lu", | |
353 | atomic_long_read(ptr + (icmpmibmap[i].index | 0x100))); | |
354 | } | |
355 | ||
356 | /* | |
357 | * Called from the PROCfs module. This outputs /proc/net/snmp. | |
358 | */ | |
359 | static int snmp_seq_show(struct seq_file *seq, void *v) | |
360 | { | |
361 | int i; | |
362 | struct net *net = seq->private; | |
363 | ||
364 | seq_puts(seq, "Ip: Forwarding DefaultTTL"); | |
365 | ||
366 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
367 | seq_printf(seq, " %s", snmp4_ipstats_list[i].name); | |
368 | ||
369 | seq_printf(seq, "\nIp: %d %d", | |
370 | IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2, | |
371 | sysctl_ip_default_ttl); | |
372 | ||
373 | BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0); | |
374 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
375 | seq_printf(seq, " %llu", | |
376 | snmp_fold_field64((void __percpu **)net->mib.ip_statistics, | |
377 | snmp4_ipstats_list[i].entry, | |
378 | offsetof(struct ipstats_mib, syncp))); | |
379 | ||
380 | icmp_put(seq); /* RFC 2011 compatibility */ | |
381 | icmpmsg_put(seq); | |
382 | ||
383 | seq_puts(seq, "\nTcp:"); | |
384 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) | |
385 | seq_printf(seq, " %s", snmp4_tcp_list[i].name); | |
386 | ||
387 | seq_puts(seq, "\nTcp:"); | |
388 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) { | |
389 | /* MaxConn field is signed, RFC 2012 */ | |
390 | if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN) | |
391 | seq_printf(seq, " %ld", | |
392 | snmp_fold_field((void __percpu **)net->mib.tcp_statistics, | |
393 | snmp4_tcp_list[i].entry)); | |
394 | else | |
395 | seq_printf(seq, " %lu", | |
396 | snmp_fold_field((void __percpu **)net->mib.tcp_statistics, | |
397 | snmp4_tcp_list[i].entry)); | |
398 | } | |
399 | ||
400 | seq_puts(seq, "\nUdp:"); | |
401 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
402 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
403 | ||
404 | seq_puts(seq, "\nUdp:"); | |
405 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
406 | seq_printf(seq, " %lu", | |
407 | snmp_fold_field((void __percpu **)net->mib.udp_statistics, | |
408 | snmp4_udp_list[i].entry)); | |
409 | ||
410 | /* the UDP and UDP-Lite MIBs are the same */ | |
411 | seq_puts(seq, "\nUdpLite:"); | |
412 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
413 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
414 | ||
415 | seq_puts(seq, "\nUdpLite:"); | |
416 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
417 | seq_printf(seq, " %lu", | |
418 | snmp_fold_field((void __percpu **)net->mib.udplite_statistics, | |
419 | snmp4_udp_list[i].entry)); | |
420 | ||
421 | seq_putc(seq, '\n'); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | static int snmp_seq_open(struct inode *inode, struct file *file) | |
426 | { | |
427 | return single_open_net(inode, file, snmp_seq_show); | |
428 | } | |
429 | ||
430 | static const struct file_operations snmp_seq_fops = { | |
431 | .owner = THIS_MODULE, | |
432 | .open = snmp_seq_open, | |
433 | .read = seq_read, | |
434 | .llseek = seq_lseek, | |
435 | .release = single_release_net, | |
436 | }; | |
437 | ||
438 | ||
439 | ||
440 | /* | |
441 | * Output /proc/net/netstat | |
442 | */ | |
443 | static int netstat_seq_show(struct seq_file *seq, void *v) | |
444 | { | |
445 | int i; | |
446 | struct net *net = seq->private; | |
447 | ||
448 | seq_puts(seq, "TcpExt:"); | |
449 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
450 | seq_printf(seq, " %s", snmp4_net_list[i].name); | |
451 | ||
452 | seq_puts(seq, "\nTcpExt:"); | |
453 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
454 | seq_printf(seq, " %lu", | |
455 | snmp_fold_field((void __percpu **)net->mib.net_statistics, | |
456 | snmp4_net_list[i].entry)); | |
457 | ||
458 | seq_puts(seq, "\nIpExt:"); | |
459 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
460 | seq_printf(seq, " %s", snmp4_ipextstats_list[i].name); | |
461 | ||
462 | seq_puts(seq, "\nIpExt:"); | |
463 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
464 | seq_printf(seq, " %llu", | |
465 | snmp_fold_field64((void __percpu **)net->mib.ip_statistics, | |
466 | snmp4_ipextstats_list[i].entry, | |
467 | offsetof(struct ipstats_mib, syncp))); | |
468 | ||
469 | seq_putc(seq, '\n'); | |
470 | return 0; | |
471 | } | |
472 | ||
473 | static int netstat_seq_open(struct inode *inode, struct file *file) | |
474 | { | |
475 | return single_open_net(inode, file, netstat_seq_show); | |
476 | } | |
477 | ||
478 | static const struct file_operations netstat_seq_fops = { | |
479 | .owner = THIS_MODULE, | |
480 | .open = netstat_seq_open, | |
481 | .read = seq_read, | |
482 | .llseek = seq_lseek, | |
483 | .release = single_release_net, | |
484 | }; | |
485 | ||
486 | static __net_init int ip_proc_init_net(struct net *net) | |
487 | { | |
488 | if (!proc_create("sockstat", S_IRUGO, net->proc_net, | |
489 | &sockstat_seq_fops)) | |
490 | goto out_sockstat; | |
491 | if (!proc_create("netstat", S_IRUGO, net->proc_net, &netstat_seq_fops)) | |
492 | goto out_netstat; | |
493 | if (!proc_create("snmp", S_IRUGO, net->proc_net, &snmp_seq_fops)) | |
494 | goto out_snmp; | |
495 | ||
496 | return 0; | |
497 | ||
498 | out_snmp: | |
499 | remove_proc_entry("netstat", net->proc_net); | |
500 | out_netstat: | |
501 | remove_proc_entry("sockstat", net->proc_net); | |
502 | out_sockstat: | |
503 | return -ENOMEM; | |
504 | } | |
505 | ||
506 | static __net_exit void ip_proc_exit_net(struct net *net) | |
507 | { | |
508 | remove_proc_entry("snmp", net->proc_net); | |
509 | remove_proc_entry("netstat", net->proc_net); | |
510 | remove_proc_entry("sockstat", net->proc_net); | |
511 | } | |
512 | ||
513 | static __net_initdata struct pernet_operations ip_proc_ops = { | |
514 | .init = ip_proc_init_net, | |
515 | .exit = ip_proc_exit_net, | |
516 | }; | |
517 | ||
518 | int __init ip_misc_proc_init(void) | |
519 | { | |
520 | return register_pernet_subsys(&ip_proc_ops); | |
521 | } | |
522 |