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Vlad Yasevich60c778b2008-01-11 09:57:09 -05001/* SCTP kernel implementation
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Copyright (c) 2003 International Business Machines, Corp.
3 *
Vlad Yasevich60c778b2008-01-11 09:57:09 -05004 * This file is part of the SCTP kernel implementation
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
Vlad Yasevich60c778b2008-01-11 09:57:09 -05006 * This SCTP implementation is free software;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * you can redistribute it and/or modify it under the terms of
8 * the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
10 * any later version.
11 *
Vlad Yasevich60c778b2008-01-11 09:57:09 -050012 * This SCTP implementation is distributed in the hope that it
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
14 * ************************
15 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16 * See the GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with GNU CC; see the file COPYING. If not, write to
20 * the Free Software Foundation, 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 *
23 * Please send any bug reports or fixes you make to the
24 * email address(es):
25 * lksctp developers <lksctp-developers@lists.sourceforge.net>
26 *
27 * Or submit a bug report through the following website:
28 * http://www.sf.net/projects/lksctp
29 *
30 * Written or modified by:
31 * Sridhar Samudrala <sri@us.ibm.com>
32 *
33 * Any bugs reported given to us we will try to fix... any fixes shared will
34 * be incorporated into the next SCTP release.
35 */
36
37#include <linux/types.h>
38#include <linux/seq_file.h>
39#include <linux/init.h>
Paul Gortmakerbc3b2d72011-07-15 11:47:34 -040040#include <linux/export.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <net/sctp/sctp.h>
Pavel Emelyanov3f5340a2008-02-09 23:23:44 -080042#include <net/ip.h> /* for snmp_fold_field */
Linus Torvalds1da177e2005-04-16 15:20:36 -070043
Alexey Dobriyan58339292010-01-22 10:17:26 +000044static const struct snmp_mib sctp_snmp_list[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070045 SNMP_MIB_ITEM("SctpCurrEstab", SCTP_MIB_CURRESTAB),
46 SNMP_MIB_ITEM("SctpActiveEstabs", SCTP_MIB_ACTIVEESTABS),
47 SNMP_MIB_ITEM("SctpPassiveEstabs", SCTP_MIB_PASSIVEESTABS),
48 SNMP_MIB_ITEM("SctpAborteds", SCTP_MIB_ABORTEDS),
49 SNMP_MIB_ITEM("SctpShutdowns", SCTP_MIB_SHUTDOWNS),
50 SNMP_MIB_ITEM("SctpOutOfBlues", SCTP_MIB_OUTOFBLUES),
51 SNMP_MIB_ITEM("SctpChecksumErrors", SCTP_MIB_CHECKSUMERRORS),
52 SNMP_MIB_ITEM("SctpOutCtrlChunks", SCTP_MIB_OUTCTRLCHUNKS),
53 SNMP_MIB_ITEM("SctpOutOrderChunks", SCTP_MIB_OUTORDERCHUNKS),
54 SNMP_MIB_ITEM("SctpOutUnorderChunks", SCTP_MIB_OUTUNORDERCHUNKS),
55 SNMP_MIB_ITEM("SctpInCtrlChunks", SCTP_MIB_INCTRLCHUNKS),
56 SNMP_MIB_ITEM("SctpInOrderChunks", SCTP_MIB_INORDERCHUNKS),
57 SNMP_MIB_ITEM("SctpInUnorderChunks", SCTP_MIB_INUNORDERCHUNKS),
58 SNMP_MIB_ITEM("SctpFragUsrMsgs", SCTP_MIB_FRAGUSRMSGS),
59 SNMP_MIB_ITEM("SctpReasmUsrMsgs", SCTP_MIB_REASMUSRMSGS),
60 SNMP_MIB_ITEM("SctpOutSCTPPacks", SCTP_MIB_OUTSCTPPACKS),
61 SNMP_MIB_ITEM("SctpInSCTPPacks", SCTP_MIB_INSCTPPACKS),
Sridhar Samudralaac0b0462006-08-22 00:15:33 -070062 SNMP_MIB_ITEM("SctpT1InitExpireds", SCTP_MIB_T1_INIT_EXPIREDS),
63 SNMP_MIB_ITEM("SctpT1CookieExpireds", SCTP_MIB_T1_COOKIE_EXPIREDS),
64 SNMP_MIB_ITEM("SctpT2ShutdownExpireds", SCTP_MIB_T2_SHUTDOWN_EXPIREDS),
65 SNMP_MIB_ITEM("SctpT3RtxExpireds", SCTP_MIB_T3_RTX_EXPIREDS),
66 SNMP_MIB_ITEM("SctpT4RtoExpireds", SCTP_MIB_T4_RTO_EXPIREDS),
67 SNMP_MIB_ITEM("SctpT5ShutdownGuardExpireds", SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS),
68 SNMP_MIB_ITEM("SctpDelaySackExpireds", SCTP_MIB_DELAY_SACK_EXPIREDS),
69 SNMP_MIB_ITEM("SctpAutocloseExpireds", SCTP_MIB_AUTOCLOSE_EXPIREDS),
70 SNMP_MIB_ITEM("SctpT3Retransmits", SCTP_MIB_T3_RETRANSMITS),
71 SNMP_MIB_ITEM("SctpPmtudRetransmits", SCTP_MIB_PMTUD_RETRANSMITS),
72 SNMP_MIB_ITEM("SctpFastRetransmits", SCTP_MIB_FAST_RETRANSMITS),
73 SNMP_MIB_ITEM("SctpInPktSoftirq", SCTP_MIB_IN_PKT_SOFTIRQ),
74 SNMP_MIB_ITEM("SctpInPktBacklog", SCTP_MIB_IN_PKT_BACKLOG),
75 SNMP_MIB_ITEM("SctpInPktDiscards", SCTP_MIB_IN_PKT_DISCARDS),
76 SNMP_MIB_ITEM("SctpInDataChunkDiscards", SCTP_MIB_IN_DATA_CHUNK_DISCARDS),
Vlad Yasevichd2287f82005-08-23 10:12:04 -070077 SNMP_MIB_SENTINEL
Linus Torvalds1da177e2005-04-16 15:20:36 -070078};
79
Linus Torvalds1da177e2005-04-16 15:20:36 -070080/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
81static int sctp_snmp_seq_show(struct seq_file *seq, void *v)
82{
Eric W. Biederman13d782f2012-08-06 08:45:15 +000083 struct net *net = seq->private;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 int i;
85
86 for (i = 0; sctp_snmp_list[i].name != NULL; i++)
87 seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
Eric W. Biedermanb01a2402012-08-06 08:47:55 +000088 snmp_fold_field((void __percpu **)net->sctp.sctp_statistics,
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 sctp_snmp_list[i].entry));
90
91 return 0;
92}
93
94/* Initialize the seq file operations for 'snmp' object. */
95static int sctp_snmp_seq_open(struct inode *inode, struct file *file)
96{
Eric W. Biederman13d782f2012-08-06 08:45:15 +000097 return single_open_net(inode, file, sctp_snmp_seq_show);
Linus Torvalds1da177e2005-04-16 15:20:36 -070098}
99
Arjan van de Venda7071d2007-02-12 00:55:36 -0800100static const struct file_operations sctp_snmp_seq_fops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 .owner = THIS_MODULE,
102 .open = sctp_snmp_seq_open,
103 .read = seq_read,
104 .llseek = seq_lseek,
Tommi Rantala0da9a0c2012-11-15 03:49:05 +0000105 .release = single_release_net,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106};
107
108/* Set up the proc fs entry for 'snmp' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000109int __net_init sctp_snmp_proc_init(struct net *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110{
111 struct proc_dir_entry *p;
112
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000113 p = proc_create("snmp", S_IRUGO, net->sctp.proc_net_sctp,
114 &sctp_snmp_seq_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 if (!p)
116 return -ENOMEM;
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 return 0;
119}
120
121/* Cleanup the proc fs entry for 'snmp' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000122void sctp_snmp_proc_exit(struct net *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000124 remove_proc_entry("snmp", net->sctp.proc_net_sctp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125}
126
127/* Dump local addresses of an association/endpoint. */
128static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb)
129{
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700130 struct sctp_association *asoc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 struct sctp_sockaddr_entry *laddr;
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700132 struct sctp_transport *peer;
133 union sctp_addr *addr, *primary = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 struct sctp_af *af;
135
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700136 if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
137 asoc = sctp_assoc(epb);
138 peer = asoc->peer.primary_path;
Al Viro5f242a12006-11-20 17:05:23 -0800139 primary = &peer->saddr;
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700140 }
141
Robert P. J. Day9dbc15f2008-04-12 18:54:24 -0700142 list_for_each_entry(laddr, &epb->bind_addr.address_list, list) {
Al Viro5f242a12006-11-20 17:05:23 -0800143 addr = &laddr->a;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 af = sctp_get_af_specific(addr->sa.sa_family);
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700145 if (primary && af->cmp_addr(addr, primary)) {
146 seq_printf(seq, "*");
147 }
Al Viro5f242a12006-11-20 17:05:23 -0800148 af->seq_dump_addr(seq, addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 }
150}
151
152/* Dump remote addresses of an association. */
153static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_association *assoc)
154{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 struct sctp_transport *transport;
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700156 union sctp_addr *addr, *primary;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 struct sctp_af *af;
158
Al Viroacd2bc92006-11-20 17:06:04 -0800159 primary = &assoc->peer.primary_addr;
Robert P. J. Day9dbc15f2008-04-12 18:54:24 -0700160 list_for_each_entry(transport, &assoc->peer.transport_addr_list,
161 transports) {
Al Viro5f242a12006-11-20 17:05:23 -0800162 addr = &transport->ipaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 af = sctp_get_af_specific(addr->sa.sa_family);
Al Viroacd2bc92006-11-20 17:06:04 -0800164 if (af->cmp_addr(addr, primary)) {
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700165 seq_printf(seq, "*");
166 }
Al Viro5f242a12006-11-20 17:05:23 -0800167 af->seq_dump_addr(seq, addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 }
169}
170
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700171static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
172{
Vlad Yasevich49392e52006-01-17 11:53:06 -0800173 if (*pos >= sctp_ep_hashsize)
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700174 return NULL;
175
176 if (*pos < 0)
177 *pos = 0;
178
179 if (*pos == 0)
180 seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT UID INODE LADDRS\n");
181
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700182 return (void *)pos;
183}
184
185static void sctp_eps_seq_stop(struct seq_file *seq, void *v)
186{
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700187}
188
189
190static void * sctp_eps_seq_next(struct seq_file *seq, void *v, loff_t *pos)
191{
Vlad Yasevich49392e52006-01-17 11:53:06 -0800192 if (++*pos >= sctp_ep_hashsize)
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700193 return NULL;
194
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700195 return pos;
196}
197
198
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199/* Display sctp endpoints (/proc/net/sctp/eps). */
200static int sctp_eps_seq_show(struct seq_file *seq, void *v)
201{
202 struct sctp_hashbucket *head;
203 struct sctp_ep_common *epb;
204 struct sctp_endpoint *ep;
205 struct sock *sk;
Vlad Yasevichd970dbf2007-11-09 11:43:40 -0500206 struct hlist_node *node;
Vlad Yasevich38b0e422006-01-17 11:54:06 -0800207 int hash = *(loff_t *)v;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208
Vlad Yasevich49392e52006-01-17 11:53:06 -0800209 if (hash >= sctp_ep_hashsize)
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700210 return -ENOMEM;
211
Vlad Yasevich49392e52006-01-17 11:53:06 -0800212 head = &sctp_ep_hashtable[hash];
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700213 sctp_local_bh_disable();
214 read_lock(&head->lock);
Vlad Yasevichd970dbf2007-11-09 11:43:40 -0500215 sctp_for_each_hentry(epb, node, &head->chain) {
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700216 ep = sctp_ep(epb);
217 sk = epb->sk;
Ulrich Weber6932f112012-08-16 01:24:49 +0000218 if (!net_eq(sock_net(sk), seq_file_net(seq)))
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000219 continue;
Dan Rosenberg71338aa2011-05-23 12:17:35 +0000220 seq_printf(seq, "%8pK %8pK %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
Vlad Yasevich49392e52006-01-17 11:53:06 -0800221 sctp_sk(sk)->type, sk->sk_state, hash,
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700222 epb->bind_addr.port,
Eric W. Biedermana7cb5a42012-05-24 01:10:10 -0600223 from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
224 sock_i_ino(sk));
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700225
226 sctp_seq_dump_local_addrs(seq, epb);
227 seq_printf(seq, "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 }
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700229 read_unlock(&head->lock);
230 sctp_local_bh_enable();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231
232 return 0;
233}
234
Philippe De Muyter56b3d972007-07-10 23:07:31 -0700235static const struct seq_operations sctp_eps_ops = {
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700236 .start = sctp_eps_seq_start,
237 .next = sctp_eps_seq_next,
238 .stop = sctp_eps_seq_stop,
239 .show = sctp_eps_seq_show,
240};
241
242
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243/* Initialize the seq file operations for 'eps' object. */
244static int sctp_eps_seq_open(struct inode *inode, struct file *file)
245{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000246 return seq_open_net(inode, file, &sctp_eps_ops,
247 sizeof(struct seq_net_private));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248}
249
Arjan van de Venda7071d2007-02-12 00:55:36 -0800250static const struct file_operations sctp_eps_seq_fops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 .open = sctp_eps_seq_open,
252 .read = seq_read,
253 .llseek = seq_lseek,
Tommi Rantala0da9a0c2012-11-15 03:49:05 +0000254 .release = seq_release_net,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255};
256
257/* Set up the proc fs entry for 'eps' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000258int __net_init sctp_eps_proc_init(struct net *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259{
260 struct proc_dir_entry *p;
261
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000262 p = proc_create("eps", S_IRUGO, net->sctp.proc_net_sctp,
263 &sctp_eps_seq_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 if (!p)
265 return -ENOMEM;
266
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 return 0;
268}
269
270/* Cleanup the proc fs entry for 'eps' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000271void sctp_eps_proc_exit(struct net *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000273 remove_proc_entry("eps", net->sctp.proc_net_sctp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274}
275
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700276
277static void * sctp_assocs_seq_start(struct seq_file *seq, loff_t *pos)
278{
Vlad Yasevich49392e52006-01-17 11:53:06 -0800279 if (*pos >= sctp_assoc_hashsize)
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700280 return NULL;
281
282 if (*pos < 0)
283 *pos = 0;
284
285 if (*pos == 0)
Neil Horman58fbbed2008-02-29 11:40:56 -0800286 seq_printf(seq, " ASSOC SOCK STY SST ST HBKT "
287 "ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
288 "RPORT LADDRS <-> RADDRS "
289 "HBINT INS OUTS MAXRT T1X T2X RTXC\n");
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700290
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700291 return (void *)pos;
292}
293
294static void sctp_assocs_seq_stop(struct seq_file *seq, void *v)
295{
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700296}
297
298
299static void * sctp_assocs_seq_next(struct seq_file *seq, void *v, loff_t *pos)
300{
Vlad Yasevich49392e52006-01-17 11:53:06 -0800301 if (++*pos >= sctp_assoc_hashsize)
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700302 return NULL;
303
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700304 return pos;
305}
306
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307/* Display sctp associations (/proc/net/sctp/assocs). */
308static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
309{
310 struct sctp_hashbucket *head;
311 struct sctp_ep_common *epb;
312 struct sctp_association *assoc;
313 struct sock *sk;
Vlad Yasevichd970dbf2007-11-09 11:43:40 -0500314 struct hlist_node *node;
Vlad Yasevich38b0e422006-01-17 11:54:06 -0800315 int hash = *(loff_t *)v;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
Vlad Yasevich49392e52006-01-17 11:53:06 -0800317 if (hash >= sctp_assoc_hashsize)
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700318 return -ENOMEM;
319
Vlad Yasevich49392e52006-01-17 11:53:06 -0800320 head = &sctp_assoc_hashtable[hash];
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700321 sctp_local_bh_disable();
322 read_lock(&head->lock);
Vlad Yasevichd970dbf2007-11-09 11:43:40 -0500323 sctp_for_each_hentry(epb, node, &head->chain) {
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700324 assoc = sctp_assoc(epb);
325 sk = epb->sk;
Ulrich Weber6932f112012-08-16 01:24:49 +0000326 if (!net_eq(sock_net(sk), seq_file_net(seq)))
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000327 continue;
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700328 seq_printf(seq,
Dan Rosenberg71338aa2011-05-23 12:17:35 +0000329 "%8pK %8pK %-3d %-3d %-2d %-4d "
Neil Horman30e93562008-04-12 18:53:48 -0700330 "%4d %8d %8d %7d %5lu %-5d %5d ",
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700331 assoc, sk, sctp_sk(sk)->type, sk->sk_state,
Neil Horman58fbbed2008-02-29 11:40:56 -0800332 assoc->state, hash,
333 assoc->assoc_id,
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700334 assoc->sndbuf_used,
Vlad Yasevich6aa25512006-10-09 21:34:26 -0700335 atomic_read(&assoc->rmem_alloc),
Eric W. Biedermana7cb5a42012-05-24 01:10:10 -0600336 from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
337 sock_i_ino(sk),
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700338 epb->bind_addr.port,
Neil Horman30e93562008-04-12 18:53:48 -0700339 assoc->peer.port);
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700340 seq_printf(seq, " ");
341 sctp_seq_dump_local_addrs(seq, epb);
342 seq_printf(seq, "<-> ");
343 sctp_seq_dump_remote_addrs(seq, assoc);
Neil Horman30e93562008-04-12 18:53:48 -0700344 seq_printf(seq, "\t%8lu %5d %5d %4d %4d %4d %8d ",
345 assoc->hbinterval, assoc->c.sinit_max_instreams,
346 assoc->c.sinit_num_ostreams, assoc->max_retrans,
347 assoc->init_retries, assoc->shutdown_retries,
348 assoc->rtx_data_chunks);
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700349 seq_printf(seq, "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 }
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700351 read_unlock(&head->lock);
352 sctp_local_bh_enable();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
354 return 0;
355}
356
Philippe De Muyter56b3d972007-07-10 23:07:31 -0700357static const struct seq_operations sctp_assoc_ops = {
Vladislav Yasevichbca735b2005-06-13 15:11:57 -0700358 .start = sctp_assocs_seq_start,
359 .next = sctp_assocs_seq_next,
360 .stop = sctp_assocs_seq_stop,
361 .show = sctp_assocs_seq_show,
362};
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364/* Initialize the seq file operations for 'assocs' object. */
365static int sctp_assocs_seq_open(struct inode *inode, struct file *file)
366{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000367 return seq_open_net(inode, file, &sctp_assoc_ops,
368 sizeof(struct seq_net_private));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369}
370
Arjan van de Venda7071d2007-02-12 00:55:36 -0800371static const struct file_operations sctp_assocs_seq_fops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 .open = sctp_assocs_seq_open,
373 .read = seq_read,
374 .llseek = seq_lseek,
Tommi Rantala0da9a0c2012-11-15 03:49:05 +0000375 .release = seq_release_net,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376};
377
378/* Set up the proc fs entry for 'assocs' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000379int __net_init sctp_assocs_proc_init(struct net *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380{
381 struct proc_dir_entry *p;
382
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000383 p = proc_create("assocs", S_IRUGO, net->sctp.proc_net_sctp,
Pavel Emelyanov459eea72008-02-29 11:24:45 -0800384 &sctp_assocs_seq_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 if (!p)
386 return -ENOMEM;
387
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 return 0;
389}
390
391/* Cleanup the proc fs entry for 'assocs' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000392void sctp_assocs_proc_exit(struct net *net)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000394 remove_proc_entry("assocs", net->sctp.proc_net_sctp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395}
Neil Horman20c2c1f2008-05-09 15:14:50 -0700396
397static void *sctp_remaddr_seq_start(struct seq_file *seq, loff_t *pos)
398{
399 if (*pos >= sctp_assoc_hashsize)
400 return NULL;
401
402 if (*pos < 0)
403 *pos = 0;
404
405 if (*pos == 0)
406 seq_printf(seq, "ADDR ASSOC_ID HB_ACT RTO MAX_PATH_RTX "
407 "REM_ADDR_RTX START\n");
408
409 return (void *)pos;
410}
411
412static void *sctp_remaddr_seq_next(struct seq_file *seq, void *v, loff_t *pos)
413{
414 if (++*pos >= sctp_assoc_hashsize)
415 return NULL;
416
417 return pos;
418}
419
420static void sctp_remaddr_seq_stop(struct seq_file *seq, void *v)
421{
Neil Horman20c2c1f2008-05-09 15:14:50 -0700422}
423
424static int sctp_remaddr_seq_show(struct seq_file *seq, void *v)
425{
426 struct sctp_hashbucket *head;
427 struct sctp_ep_common *epb;
428 struct sctp_association *assoc;
429 struct hlist_node *node;
430 struct sctp_transport *tsp;
431 int hash = *(loff_t *)v;
432
433 if (hash >= sctp_assoc_hashsize)
434 return -ENOMEM;
435
436 head = &sctp_assoc_hashtable[hash];
437 sctp_local_bh_disable();
438 read_lock(&head->lock);
439 sctp_for_each_hentry(epb, node, &head->chain) {
Ulrich Weber6932f112012-08-16 01:24:49 +0000440 if (!net_eq(sock_net(epb->sk), seq_file_net(seq)))
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000441 continue;
Neil Horman20c2c1f2008-05-09 15:14:50 -0700442 assoc = sctp_assoc(epb);
443 list_for_each_entry(tsp, &assoc->peer.transport_addr_list,
444 transports) {
445 /*
446 * The remote address (ADDR)
447 */
448 tsp->af_specific->seq_dump_addr(seq, &tsp->ipaddr);
449 seq_printf(seq, " ");
450
451 /*
452 * The association ID (ASSOC_ID)
453 */
454 seq_printf(seq, "%d ", tsp->asoc->assoc_id);
455
456 /*
457 * If the Heartbeat is active (HB_ACT)
458 * Note: 1 = Active, 0 = Inactive
459 */
460 seq_printf(seq, "%d ", timer_pending(&tsp->hb_timer));
461
462 /*
463 * Retransmit time out (RTO)
464 */
465 seq_printf(seq, "%lu ", tsp->rto);
466
467 /*
468 * Maximum path retransmit count (PATH_MAX_RTX)
469 */
470 seq_printf(seq, "%d ", tsp->pathmaxrxt);
471
472 /*
473 * remote address retransmit count (REM_ADDR_RTX)
474 * Note: We don't have a way to tally this at the moment
475 * so lets just leave it as zero for the moment
476 */
477 seq_printf(seq, "0 ");
478
479 /*
480 * remote address start time (START). This is also not
481 * currently implemented, but we can record it with a
482 * jiffies marker in a subsequent patch
483 */
484 seq_printf(seq, "0");
485
486 seq_printf(seq, "\n");
487 }
488 }
489
490 read_unlock(&head->lock);
491 sctp_local_bh_enable();
492
493 return 0;
494
495}
496
497static const struct seq_operations sctp_remaddr_ops = {
498 .start = sctp_remaddr_seq_start,
499 .next = sctp_remaddr_seq_next,
500 .stop = sctp_remaddr_seq_stop,
501 .show = sctp_remaddr_seq_show,
502};
503
504/* Cleanup the proc fs entry for 'remaddr' object. */
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000505void sctp_remaddr_proc_exit(struct net *net)
Neil Horman20c2c1f2008-05-09 15:14:50 -0700506{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000507 remove_proc_entry("remaddr", net->sctp.proc_net_sctp);
Neil Horman20c2c1f2008-05-09 15:14:50 -0700508}
509
510static int sctp_remaddr_seq_open(struct inode *inode, struct file *file)
511{
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000512 return seq_open_net(inode, file, &sctp_remaddr_ops,
513 sizeof(struct seq_net_private));
Neil Horman20c2c1f2008-05-09 15:14:50 -0700514}
515
516static const struct file_operations sctp_remaddr_seq_fops = {
517 .open = sctp_remaddr_seq_open,
518 .read = seq_read,
519 .llseek = seq_lseek,
Tommi Rantala0da9a0c2012-11-15 03:49:05 +0000520 .release = seq_release_net,
Neil Horman20c2c1f2008-05-09 15:14:50 -0700521};
522
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000523int __net_init sctp_remaddr_proc_init(struct net *net)
Neil Horman20c2c1f2008-05-09 15:14:50 -0700524{
525 struct proc_dir_entry *p;
526
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000527 p = proc_create("remaddr", S_IRUGO, net->sctp.proc_net_sctp,
528 &sctp_remaddr_seq_fops);
Neil Horman20c2c1f2008-05-09 15:14:50 -0700529 if (!p)
530 return -ENOMEM;
Neil Horman20c2c1f2008-05-09 15:14:50 -0700531 return 0;
532}