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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> | |
bc3b2d7f | 45 | #include <linux/export.h> |
1da177e4 LT |
46 | #include <net/sock.h> |
47 | #include <net/raw.h> | |
48 | ||
1da177e4 LT |
49 | /* |
50 | * Report socket allocation statistics [mea@utu.fi] | |
51 | */ | |
52 | static int sockstat_seq_show(struct seq_file *seq, void *v) | |
53 | { | |
fd4e7b50 | 54 | struct net *net = seq->private; |
eb4dea58 HX |
55 | int orphans, sockets; |
56 | ||
57 | local_bh_disable(); | |
1c10c49d | 58 | orphans = percpu_counter_sum_positive(&tcp_orphan_count); |
180d8cd9 | 59 | sockets = proto_sockets_allocated_sum_positive(&tcp_prot); |
eb4dea58 | 60 | local_bh_enable(); |
fd4e7b50 | 61 | |
1da177e4 | 62 | socket_seq_show(seq); |
8d987e5c | 63 | seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %ld\n", |
eb4dea58 HX |
64 | sock_prot_inuse_get(net, &tcp_prot), orphans, |
65 | tcp_death_row.tw_count, sockets, | |
180d8cd9 | 66 | proto_memory_allocated(&tcp_prot)); |
8d987e5c | 67 | seq_printf(seq, "UDP: inuse %d mem %ld\n", |
fd4e7b50 | 68 | sock_prot_inuse_get(net, &udp_prot), |
180d8cd9 | 69 | proto_memory_allocated(&udp_prot)); |
c29a0bc4 | 70 | seq_printf(seq, "UDPLITE: inuse %d\n", |
fd4e7b50 | 71 | sock_prot_inuse_get(net, &udplite_prot)); |
c29a0bc4 | 72 | seq_printf(seq, "RAW: inuse %d\n", |
fd4e7b50 | 73 | sock_prot_inuse_get(net, &raw_prot)); |
7eb95156 | 74 | seq_printf(seq, "FRAG: inuse %d memory %d\n", |
fd4e7b50 | 75 | ip_frag_nqueues(net), ip_frag_mem(net)); |
1da177e4 LT |
76 | return 0; |
77 | } | |
78 | ||
79 | static int sockstat_seq_open(struct inode *inode, struct file *file) | |
80 | { | |
de05c557 | 81 | return single_open_net(inode, file, sockstat_seq_show); |
fd4e7b50 PE |
82 | } |
83 | ||
9a32144e | 84 | static const struct file_operations sockstat_seq_fops = { |
1da177e4 LT |
85 | .owner = THIS_MODULE, |
86 | .open = sockstat_seq_open, | |
87 | .read = seq_read, | |
88 | .llseek = seq_lseek, | |
b6fcbdb4 | 89 | .release = single_release_net, |
1da177e4 LT |
90 | }; |
91 | ||
1da177e4 | 92 | /* snmp items */ |
9b5b5cff | 93 | static const struct snmp_mib snmp4_ipstats_list[] = { |
edf391ff | 94 | SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS), |
1da177e4 LT |
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), | |
edf391ff | 101 | SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTPKTS), |
1da177e4 LT |
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 | ||
d831666e MC |
114 | /* Following RFC4293 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), | |
edf391ff NH |
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), | |
6a5dc9e5 | 128 | SNMP_MIB_ITEM("InCsumErrors", IPSTATS_MIB_CSUMERRORS), |
d831666e MC |
129 | SNMP_MIB_SENTINEL |
130 | }; | |
131 | ||
5833929c AD |
132 | static const struct { |
133 | const char *name; | |
96793b48 DS |
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 }, | |
cfcabdcc | 147 | { NULL, 0 } |
96793b48 DS |
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), | |
6a5dc9e5 | 166 | SNMP_MIB_ITEM("InCsumErrors", TCP_MIB_CSUMERRORS), |
1da177e4 LT |
167 | SNMP_MIB_SENTINEL |
168 | }; | |
169 | ||
9b5b5cff | 170 | static const struct snmp_mib snmp4_udp_list[] = { |
1da177e4 LT |
171 | SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS), |
172 | SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS), | |
173 | SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS), | |
174 | SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS), | |
81aa646c MB |
175 | SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS), |
176 | SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS), | |
6a5dc9e5 | 177 | SNMP_MIB_ITEM("InCsumErrors", UDP_MIB_CSUMERRORS), |
1da177e4 LT |
178 | SNMP_MIB_SENTINEL |
179 | }; | |
180 | ||
9b5b5cff | 181 | static const struct snmp_mib snmp4_net_list[] = { |
1da177e4 LT |
182 | SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT), |
183 | SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV), | |
184 | SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED), | |
185 | SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS), | |
186 | SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED), | |
187 | SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED), | |
188 | SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED), | |
189 | SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS), | |
190 | SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS), | |
191 | SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER), | |
192 | SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED), | |
193 | SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED), | |
194 | SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED), | |
195 | SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED), | |
196 | SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED), | |
197 | SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED), | |
198 | SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS), | |
199 | SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED), | |
200 | SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST), | |
201 | SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS), | |
202 | SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS), | |
203 | SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED), | |
204 | SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG), | |
205 | SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE), | |
206 | SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED), | |
207 | SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS), | |
208 | SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER), | |
209 | SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS), | |
210 | SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS), | |
211 | SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY), | |
212 | SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY), | |
213 | SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING), | |
214 | SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER), | |
215 | SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER), | |
216 | SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER), | |
217 | SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER), | |
218 | SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO), | |
219 | SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO), | |
220 | SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO), | |
221 | SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO), | |
1da177e4 LT |
222 | SNMP_MIB_ITEM("TCPLostRetransmit", LINUX_MIB_TCPLOSTRETRANSMIT), |
223 | SNMP_MIB_ITEM("TCPRenoFailures", LINUX_MIB_TCPRENOFAILURES), | |
224 | SNMP_MIB_ITEM("TCPSackFailures", LINUX_MIB_TCPSACKFAILURES), | |
225 | SNMP_MIB_ITEM("TCPLossFailures", LINUX_MIB_TCPLOSSFAILURES), | |
226 | SNMP_MIB_ITEM("TCPFastRetrans", LINUX_MIB_TCPFASTRETRANS), | |
227 | SNMP_MIB_ITEM("TCPForwardRetrans", LINUX_MIB_TCPFORWARDRETRANS), | |
228 | SNMP_MIB_ITEM("TCPSlowStartRetrans", LINUX_MIB_TCPSLOWSTARTRETRANS), | |
229 | SNMP_MIB_ITEM("TCPTimeouts", LINUX_MIB_TCPTIMEOUTS), | |
6ba8a3b1 | 230 | SNMP_MIB_ITEM("TCPLossProbes", LINUX_MIB_TCPLOSSPROBES), |
9b717a8d | 231 | SNMP_MIB_ITEM("TCPLossProbeRecovery", LINUX_MIB_TCPLOSSPROBERECOVERY), |
1da177e4 LT |
232 | SNMP_MIB_ITEM("TCPRenoRecoveryFail", LINUX_MIB_TCPRENORECOVERYFAIL), |
233 | SNMP_MIB_ITEM("TCPSackRecoveryFail", LINUX_MIB_TCPSACKRECOVERYFAIL), | |
234 | SNMP_MIB_ITEM("TCPSchedulerFailed", LINUX_MIB_TCPSCHEDULERFAILED), | |
235 | SNMP_MIB_ITEM("TCPRcvCollapsed", LINUX_MIB_TCPRCVCOLLAPSED), | |
236 | SNMP_MIB_ITEM("TCPDSACKOldSent", LINUX_MIB_TCPDSACKOLDSENT), | |
237 | SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT), | |
238 | SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV), | |
239 | SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV), | |
1da177e4 LT |
240 | SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA), |
241 | SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE), | |
242 | SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY), | |
243 | SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT), | |
244 | SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER), | |
245 | SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED), | |
246 | SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES), | |
18f02545 IJ |
247 | SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD), |
248 | SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD), | |
249 | SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO), | |
912d8f0b | 250 | SNMP_MIB_ITEM("TCPSpuriousRTOs", LINUX_MIB_TCPSPURIOUSRTOS), |
785957d3 DM |
251 | SNMP_MIB_ITEM("TCPMD5NotFound", LINUX_MIB_TCPMD5NOTFOUND), |
252 | SNMP_MIB_ITEM("TCPMD5Unexpected", LINUX_MIB_TCPMD5UNEXPECTED), | |
111cc8b9 IJ |
253 | SNMP_MIB_ITEM("TCPSackShifted", LINUX_MIB_SACKSHIFTED), |
254 | SNMP_MIB_ITEM("TCPSackMerged", LINUX_MIB_SACKMERGED), | |
255 | SNMP_MIB_ITEM("TCPSackShiftFallback", LINUX_MIB_SACKSHIFTFALLBACK), | |
6cce09f8 ED |
256 | SNMP_MIB_ITEM("TCPBacklogDrop", LINUX_MIB_TCPBACKLOGDROP), |
257 | SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP), | |
907cdda5 | 258 | SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP), |
b5f7e755 | 259 | SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER), |
67631510 | 260 | SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW), |
946cedcc ED |
261 | SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES), |
262 | SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP), | |
09e9b813 | 263 | SNMP_MIB_ITEM("TCPRetransFail", LINUX_MIB_TCPRETRANSFAIL), |
c8628155 | 264 | SNMP_MIB_ITEM("TCPRcvCoalesce", LINUX_MIB_TCPRCVCOALESCE), |
a6df1ae9 ED |
265 | SNMP_MIB_ITEM("TCPOFOQueue", LINUX_MIB_TCPOFOQUEUE), |
266 | SNMP_MIB_ITEM("TCPOFODrop", LINUX_MIB_TCPOFODROP), | |
267 | SNMP_MIB_ITEM("TCPOFOMerge", LINUX_MIB_TCPOFOMERGE), | |
282f23c6 | 268 | SNMP_MIB_ITEM("TCPChallengeACK", LINUX_MIB_TCPCHALLENGEACK), |
0c24604b | 269 | SNMP_MIB_ITEM("TCPSYNChallenge", LINUX_MIB_TCPSYNCHALLENGE), |
783237e8 | 270 | SNMP_MIB_ITEM("TCPFastOpenActive", LINUX_MIB_TCPFASTOPENACTIVE), |
10467163 JC |
271 | SNMP_MIB_ITEM("TCPFastOpenPassive", LINUX_MIB_TCPFASTOPENPASSIVE), |
272 | SNMP_MIB_ITEM("TCPFastOpenPassiveFail", LINUX_MIB_TCPFASTOPENPASSIVEFAIL), | |
273 | SNMP_MIB_ITEM("TCPFastOpenListenOverflow", LINUX_MIB_TCPFASTOPENLISTENOVERFLOW), | |
274 | SNMP_MIB_ITEM("TCPFastOpenCookieReqd", LINUX_MIB_TCPFASTOPENCOOKIEREQD), | |
0e280af0 | 275 | SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES), |
1da177e4 LT |
276 | SNMP_MIB_SENTINEL |
277 | }; | |
278 | ||
b971e7ac ED |
279 | static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals, |
280 | unsigned short *type, int count) | |
281 | { | |
282 | int j; | |
283 | ||
284 | if (count) { | |
285 | seq_printf(seq, "\nIcmpMsg:"); | |
286 | for (j = 0; j < count; ++j) | |
287 | seq_printf(seq, " %sType%u", | |
288 | type[j] & 0x100 ? "Out" : "In", | |
289 | type[j] & 0xff); | |
290 | seq_printf(seq, "\nIcmpMsg:"); | |
291 | for (j = 0; j < count; ++j) | |
292 | seq_printf(seq, " %lu", vals[j]); | |
293 | } | |
294 | } | |
295 | ||
96793b48 DS |
296 | static void icmpmsg_put(struct seq_file *seq) |
297 | { | |
298 | #define PERLINE 16 | |
299 | ||
b971e7ac ED |
300 | int i, count; |
301 | unsigned short type[PERLINE]; | |
302 | unsigned long vals[PERLINE], val; | |
229bf0cb | 303 | struct net *net = seq->private; |
96793b48 DS |
304 | |
305 | count = 0; | |
306 | for (i = 0; i < ICMPMSG_MIB_MAX; i++) { | |
acb32ba3 | 307 | val = atomic_long_read(&net->mib.icmpmsg_statistics->mibs[i]); |
b971e7ac ED |
308 | if (val) { |
309 | type[count] = i; | |
310 | vals[count++] = val; | |
311 | } | |
312 | if (count == PERLINE) { | |
313 | icmpmsg_put_line(seq, vals, type, count); | |
314 | count = 0; | |
315 | } | |
96793b48 | 316 | } |
b971e7ac | 317 | icmpmsg_put_line(seq, vals, type, count); |
96793b48 DS |
318 | |
319 | #undef PERLINE | |
320 | } | |
321 | ||
322 | static void icmp_put(struct seq_file *seq) | |
323 | { | |
324 | int i; | |
229bf0cb | 325 | struct net *net = seq->private; |
acb32ba3 | 326 | atomic_long_t *ptr = net->mib.icmpmsg_statistics->mibs; |
96793b48 | 327 | |
6a5dc9e5 | 328 | seq_puts(seq, "\nIcmp: InMsgs InErrors InCsumErrors"); |
96793b48 DS |
329 | for (i=0; icmpmibmap[i].name != NULL; i++) |
330 | seq_printf(seq, " In%s", icmpmibmap[i].name); | |
331 | seq_printf(seq, " OutMsgs OutErrors"); | |
332 | for (i=0; icmpmibmap[i].name != NULL; i++) | |
333 | seq_printf(seq, " Out%s", icmpmibmap[i].name); | |
6a5dc9e5 | 334 | seq_printf(seq, "\nIcmp: %lu %lu %lu", |
7d720c3e | 335 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INMSGS), |
6a5dc9e5 ED |
336 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_INERRORS), |
337 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_CSUMERRORS)); | |
96793b48 DS |
338 | for (i=0; icmpmibmap[i].name != NULL; i++) |
339 | seq_printf(seq, " %lu", | |
acb32ba3 | 340 | atomic_long_read(ptr + icmpmibmap[i].index)); |
96793b48 | 341 | seq_printf(seq, " %lu %lu", |
7d720c3e TH |
342 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTMSGS), |
343 | snmp_fold_field((void __percpu **) net->mib.icmp_statistics, ICMP_MIB_OUTERRORS)); | |
96793b48 DS |
344 | for (i=0; icmpmibmap[i].name != NULL; i++) |
345 | seq_printf(seq, " %lu", | |
acb32ba3 | 346 | atomic_long_read(ptr + (icmpmibmap[i].index | 0x100))); |
96793b48 DS |
347 | } |
348 | ||
1da177e4 LT |
349 | /* |
350 | * Called from the PROCfs module. This outputs /proc/net/snmp. | |
351 | */ | |
352 | static int snmp_seq_show(struct seq_file *seq, void *v) | |
353 | { | |
354 | int i; | |
229bf0cb | 355 | struct net *net = seq->private; |
1da177e4 LT |
356 | |
357 | seq_puts(seq, "Ip: Forwarding DefaultTTL"); | |
358 | ||
359 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) | |
360 | seq_printf(seq, " %s", snmp4_ipstats_list[i].name); | |
361 | ||
362 | seq_printf(seq, "\nIp: %d %d", | |
8e3461d0 | 363 | IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2, |
586f1211 | 364 | sysctl_ip_default_ttl); |
1da177e4 | 365 | |
4ce3c183 | 366 | BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0); |
1da177e4 | 367 | for (i = 0; snmp4_ipstats_list[i].name != NULL; i++) |
4ce3c183 ED |
368 | seq_printf(seq, " %llu", |
369 | snmp_fold_field64((void __percpu **)net->mib.ip_statistics, | |
370 | snmp4_ipstats_list[i].entry, | |
371 | offsetof(struct ipstats_mib, syncp))); | |
1da177e4 | 372 | |
96793b48 DS |
373 | icmp_put(seq); /* RFC 2011 compatibility */ |
374 | icmpmsg_put(seq); | |
1da177e4 LT |
375 | |
376 | seq_puts(seq, "\nTcp:"); | |
377 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) | |
378 | seq_printf(seq, " %s", snmp4_tcp_list[i].name); | |
379 | ||
380 | seq_puts(seq, "\nTcp:"); | |
381 | for (i = 0; snmp4_tcp_list[i].name != NULL; i++) { | |
382 | /* MaxConn field is signed, RFC 2012 */ | |
383 | if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN) | |
384 | seq_printf(seq, " %ld", | |
7d720c3e | 385 | snmp_fold_field((void __percpu **)net->mib.tcp_statistics, |
5e0f0435 | 386 | snmp4_tcp_list[i].entry)); |
1da177e4 LT |
387 | else |
388 | seq_printf(seq, " %lu", | |
7d720c3e | 389 | snmp_fold_field((void __percpu **)net->mib.tcp_statistics, |
5e0f0435 | 390 | snmp4_tcp_list[i].entry)); |
1da177e4 LT |
391 | } |
392 | ||
393 | seq_puts(seq, "\nUdp:"); | |
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, "\nUdp:"); | |
398 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
399 | seq_printf(seq, " %lu", | |
7d720c3e | 400 | snmp_fold_field((void __percpu **)net->mib.udp_statistics, |
5e0f0435 | 401 | snmp4_udp_list[i].entry)); |
1da177e4 | 402 | |
ba4e58ec GR |
403 | /* the UDP and UDP-Lite MIBs are the same */ |
404 | seq_puts(seq, "\nUdpLite:"); | |
405 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
406 | seq_printf(seq, " %s", snmp4_udp_list[i].name); | |
407 | ||
408 | seq_puts(seq, "\nUdpLite:"); | |
409 | for (i = 0; snmp4_udp_list[i].name != NULL; i++) | |
410 | seq_printf(seq, " %lu", | |
7d720c3e | 411 | snmp_fold_field((void __percpu **)net->mib.udplite_statistics, |
5e0f0435 | 412 | snmp4_udp_list[i].entry)); |
db8dac20 | 413 | |
1da177e4 LT |
414 | seq_putc(seq, '\n'); |
415 | return 0; | |
416 | } | |
417 | ||
418 | static int snmp_seq_open(struct inode *inode, struct file *file) | |
419 | { | |
de05c557 | 420 | return single_open_net(inode, file, snmp_seq_show); |
229bf0cb PE |
421 | } |
422 | ||
9a32144e | 423 | static const struct file_operations snmp_seq_fops = { |
1da177e4 LT |
424 | .owner = THIS_MODULE, |
425 | .open = snmp_seq_open, | |
426 | .read = seq_read, | |
427 | .llseek = seq_lseek, | |
b6fcbdb4 | 428 | .release = single_release_net, |
1da177e4 LT |
429 | }; |
430 | ||
96793b48 DS |
431 | |
432 | ||
1da177e4 LT |
433 | /* |
434 | * Output /proc/net/netstat | |
435 | */ | |
436 | static int netstat_seq_show(struct seq_file *seq, void *v) | |
437 | { | |
438 | int i; | |
7b7a9dfd | 439 | struct net *net = seq->private; |
1da177e4 LT |
440 | |
441 | seq_puts(seq, "TcpExt:"); | |
442 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
443 | seq_printf(seq, " %s", snmp4_net_list[i].name); | |
444 | ||
445 | seq_puts(seq, "\nTcpExt:"); | |
446 | for (i = 0; snmp4_net_list[i].name != NULL; i++) | |
447 | seq_printf(seq, " %lu", | |
7d720c3e | 448 | snmp_fold_field((void __percpu **)net->mib.net_statistics, |
5e0f0435 | 449 | snmp4_net_list[i].entry)); |
1da177e4 | 450 | |
d831666e MC |
451 | seq_puts(seq, "\nIpExt:"); |
452 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
453 | seq_printf(seq, " %s", snmp4_ipextstats_list[i].name); | |
454 | ||
455 | seq_puts(seq, "\nIpExt:"); | |
456 | for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++) | |
4ce3c183 ED |
457 | seq_printf(seq, " %llu", |
458 | snmp_fold_field64((void __percpu **)net->mib.ip_statistics, | |
459 | snmp4_ipextstats_list[i].entry, | |
460 | offsetof(struct ipstats_mib, syncp))); | |
d831666e | 461 | |
1da177e4 LT |
462 | seq_putc(seq, '\n'); |
463 | return 0; | |
464 | } | |
465 | ||
466 | static int netstat_seq_open(struct inode *inode, struct file *file) | |
467 | { | |
de05c557 | 468 | return single_open_net(inode, file, netstat_seq_show); |
7b7a9dfd PE |
469 | } |
470 | ||
9a32144e | 471 | static const struct file_operations netstat_seq_fops = { |
1da177e4 LT |
472 | .owner = THIS_MODULE, |
473 | .open = netstat_seq_open, | |
474 | .read = seq_read, | |
475 | .llseek = seq_lseek, | |
b6fcbdb4 | 476 | .release = single_release_net, |
1da177e4 LT |
477 | }; |
478 | ||
d0538ca3 PE |
479 | static __net_init int ip_proc_init_net(struct net *net) |
480 | { | |
d4beaa66 G |
481 | if (!proc_create("sockstat", S_IRUGO, net->proc_net, |
482 | &sockstat_seq_fops)) | |
60bdde95 | 483 | goto out_sockstat; |
d4beaa66 | 484 | if (!proc_create("netstat", S_IRUGO, net->proc_net, &netstat_seq_fops)) |
7b7a9dfd | 485 | goto out_netstat; |
d4beaa66 | 486 | if (!proc_create("snmp", S_IRUGO, net->proc_net, &snmp_seq_fops)) |
229bf0cb | 487 | goto out_snmp; |
7b7a9dfd | 488 | |
d0538ca3 | 489 | return 0; |
7b7a9dfd | 490 | |
229bf0cb | 491 | out_snmp: |
ece31ffd | 492 | remove_proc_entry("netstat", net->proc_net); |
7b7a9dfd | 493 | out_netstat: |
ece31ffd | 494 | remove_proc_entry("sockstat", net->proc_net); |
60bdde95 | 495 | out_sockstat: |
7b7a9dfd | 496 | return -ENOMEM; |
d0538ca3 PE |
497 | } |
498 | ||
499 | static __net_exit void ip_proc_exit_net(struct net *net) | |
500 | { | |
ece31ffd G |
501 | remove_proc_entry("snmp", net->proc_net); |
502 | remove_proc_entry("netstat", net->proc_net); | |
503 | remove_proc_entry("sockstat", net->proc_net); | |
d0538ca3 PE |
504 | } |
505 | ||
506 | static __net_initdata struct pernet_operations ip_proc_ops = { | |
507 | .init = ip_proc_init_net, | |
508 | .exit = ip_proc_exit_net, | |
509 | }; | |
510 | ||
1da177e4 LT |
511 | int __init ip_misc_proc_init(void) |
512 | { | |
60bdde95 | 513 | return register_pernet_subsys(&ip_proc_ops); |
1da177e4 | 514 | } |
33490170 | 515 |