1 /* SCTP kernel reference Implementation
2 * Copyright (c) 2003 International Business Machines, Corp.
4 * This file is part of the SCTP kernel reference Implementation
6 * The SCTP reference implementation is free software;
7 * 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)
12 * The SCTP reference implementation is distributed in the hope that it
13 * 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.
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.
23 * Please send any bug reports or fixes you make to the
25 * lksctp developers <lksctp-developers@lists.sourceforge.net>
27 * Or submit a bug report through the following website:
28 * http://www.sf.net/projects/lksctp
30 * Written or modified by:
31 * Sridhar Samudrala <sri@us.ibm.com>
33 * Any bugs reported given to us we will try to fix... any fixes shared will
34 * be incorporated into the next SCTP release.
37 #include <linux/types.h>
38 #include <linux/seq_file.h>
39 #include <linux/init.h>
40 #include <net/sctp/sctp.h>
42 static struct snmp_mib sctp_snmp_list[] = {
43 SNMP_MIB_ITEM("SctpCurrEstab", SCTP_MIB_CURRESTAB),
44 SNMP_MIB_ITEM("SctpActiveEstabs", SCTP_MIB_ACTIVEESTABS),
45 SNMP_MIB_ITEM("SctpPassiveEstabs", SCTP_MIB_PASSIVEESTABS),
46 SNMP_MIB_ITEM("SctpAborteds", SCTP_MIB_ABORTEDS),
47 SNMP_MIB_ITEM("SctpShutdowns", SCTP_MIB_SHUTDOWNS),
48 SNMP_MIB_ITEM("SctpOutOfBlues", SCTP_MIB_OUTOFBLUES),
49 SNMP_MIB_ITEM("SctpChecksumErrors", SCTP_MIB_CHECKSUMERRORS),
50 SNMP_MIB_ITEM("SctpOutCtrlChunks", SCTP_MIB_OUTCTRLCHUNKS),
51 SNMP_MIB_ITEM("SctpOutOrderChunks", SCTP_MIB_OUTORDERCHUNKS),
52 SNMP_MIB_ITEM("SctpOutUnorderChunks", SCTP_MIB_OUTUNORDERCHUNKS),
53 SNMP_MIB_ITEM("SctpInCtrlChunks", SCTP_MIB_INCTRLCHUNKS),
54 SNMP_MIB_ITEM("SctpInOrderChunks", SCTP_MIB_INORDERCHUNKS),
55 SNMP_MIB_ITEM("SctpInUnorderChunks", SCTP_MIB_INUNORDERCHUNKS),
56 SNMP_MIB_ITEM("SctpFragUsrMsgs", SCTP_MIB_FRAGUSRMSGS),
57 SNMP_MIB_ITEM("SctpReasmUsrMsgs", SCTP_MIB_REASMUSRMSGS),
58 SNMP_MIB_ITEM("SctpOutSCTPPacks", SCTP_MIB_OUTSCTPPACKS),
59 SNMP_MIB_ITEM("SctpInSCTPPacks", SCTP_MIB_INSCTPPACKS),
62 /* Return the current value of a particular entry in the mib by adding its
66 fold_field(void *mib[], int nr)
68 unsigned long res = 0;
71 for (i = 0; i < NR_CPUS; i++) {
75 *((unsigned long *) (((void *) per_cpu_ptr(mib[0], i)) +
76 sizeof (unsigned long) * nr));
78 *((unsigned long *) (((void *) per_cpu_ptr(mib[1], i)) +
79 sizeof (unsigned long) * nr));
84 /* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
85 static int sctp_snmp_seq_show(struct seq_file *seq, void *v)
89 for (i = 0; sctp_snmp_list[i].name != NULL; i++)
90 seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
91 fold_field((void **)sctp_statistics,
92 sctp_snmp_list[i].entry));
97 /* Initialize the seq file operations for 'snmp' object. */
98 static int sctp_snmp_seq_open(struct inode *inode, struct file *file)
100 return single_open(file, sctp_snmp_seq_show, NULL);
103 static struct file_operations sctp_snmp_seq_fops = {
104 .owner = THIS_MODULE,
105 .open = sctp_snmp_seq_open,
108 .release = single_release,
111 /* Set up the proc fs entry for 'snmp' object. */
112 int __init sctp_snmp_proc_init(void)
114 struct proc_dir_entry *p;
116 p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp);
120 p->proc_fops = &sctp_snmp_seq_fops;
125 /* Cleanup the proc fs entry for 'snmp' object. */
126 void sctp_snmp_proc_exit(void)
128 remove_proc_entry("snmp", proc_net_sctp);
131 /* Dump local addresses of an association/endpoint. */
132 static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb)
134 struct list_head *pos;
135 struct sctp_association *asoc;
136 struct sctp_sockaddr_entry *laddr;
137 struct sctp_transport *peer;
138 union sctp_addr *addr, *primary = NULL;
141 if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
142 asoc = sctp_assoc(epb);
143 peer = asoc->peer.primary_path;
144 primary = &peer->saddr;
147 list_for_each(pos, &epb->bind_addr.address_list) {
148 laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
149 addr = (union sctp_addr *)&laddr->a;
150 af = sctp_get_af_specific(addr->sa.sa_family);
151 if (primary && af->cmp_addr(addr, primary)) {
152 seq_printf(seq, "*");
154 af->seq_dump_addr(seq, addr);
158 /* Dump remote addresses of an association. */
159 static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_association *assoc)
161 struct list_head *pos;
162 struct sctp_transport *transport;
163 union sctp_addr *addr, *primary;
166 primary = &(assoc->peer.primary_addr);
167 list_for_each(pos, &assoc->peer.transport_addr_list) {
168 transport = list_entry(pos, struct sctp_transport, transports);
169 addr = (union sctp_addr *)&transport->ipaddr;
170 af = sctp_get_af_specific(addr->sa.sa_family);
171 if (af->cmp_addr(addr, primary)) {
172 seq_printf(seq, "*");
174 af->seq_dump_addr(seq, addr);
178 static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
180 if (*pos > sctp_ep_hashsize)
187 seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT UID INODE LADDRS\n");
194 static void sctp_eps_seq_stop(struct seq_file *seq, void *v)
200 static void * sctp_eps_seq_next(struct seq_file *seq, void *v, loff_t *pos)
202 if (*pos > sctp_ep_hashsize)
211 /* Display sctp endpoints (/proc/net/sctp/eps). */
212 static int sctp_eps_seq_show(struct seq_file *seq, void *v)
214 struct sctp_hashbucket *head;
215 struct sctp_ep_common *epb;
216 struct sctp_endpoint *ep;
218 int hash = *(int *)v;
220 if (hash > sctp_ep_hashsize)
223 head = &sctp_ep_hashtable[hash-1];
224 sctp_local_bh_disable();
225 read_lock(&head->lock);
226 for (epb = head->chain; epb; epb = epb->next) {
229 seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
230 sctp_sk(sk)->type, sk->sk_state, hash-1,
232 sock_i_uid(sk), sock_i_ino(sk));
234 sctp_seq_dump_local_addrs(seq, epb);
235 seq_printf(seq, "\n");
237 read_unlock(&head->lock);
238 sctp_local_bh_enable();
243 static struct seq_operations sctp_eps_ops = {
244 .start = sctp_eps_seq_start,
245 .next = sctp_eps_seq_next,
246 .stop = sctp_eps_seq_stop,
247 .show = sctp_eps_seq_show,
251 /* Initialize the seq file operations for 'eps' object. */
252 static int sctp_eps_seq_open(struct inode *inode, struct file *file)
254 return seq_open(file, &sctp_eps_ops);
257 static struct file_operations sctp_eps_seq_fops = {
258 .open = sctp_eps_seq_open,
261 .release = seq_release,
264 /* Set up the proc fs entry for 'eps' object. */
265 int __init sctp_eps_proc_init(void)
267 struct proc_dir_entry *p;
269 p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
273 p->proc_fops = &sctp_eps_seq_fops;
278 /* Cleanup the proc fs entry for 'eps' object. */
279 void sctp_eps_proc_exit(void)
281 remove_proc_entry("eps", proc_net_sctp);
285 static void * sctp_assocs_seq_start(struct seq_file *seq, loff_t *pos)
287 if (*pos > sctp_assoc_hashsize)
294 seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
295 "RPORT LADDRS <-> RADDRS\n");
302 static void sctp_assocs_seq_stop(struct seq_file *seq, void *v)
308 static void * sctp_assocs_seq_next(struct seq_file *seq, void *v, loff_t *pos)
310 if (*pos > sctp_assoc_hashsize)
318 /* Display sctp associations (/proc/net/sctp/assocs). */
319 static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
321 struct sctp_hashbucket *head;
322 struct sctp_ep_common *epb;
323 struct sctp_association *assoc;
325 int hash = *(int *)v;
327 if (hash > sctp_assoc_hashsize)
330 head = &sctp_assoc_hashtable[hash-1];
331 sctp_local_bh_disable();
332 read_lock(&head->lock);
333 for (epb = head->chain; epb; epb = epb->next) {
334 assoc = sctp_assoc(epb);
337 "%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
338 assoc, sk, sctp_sk(sk)->type, sk->sk_state,
339 assoc->state, hash-1, assoc->assoc_id,
340 (sk->sk_rcvbuf - assoc->rwnd),
342 sock_i_uid(sk), sock_i_ino(sk),
346 seq_printf(seq, " ");
347 sctp_seq_dump_local_addrs(seq, epb);
348 seq_printf(seq, "<-> ");
349 sctp_seq_dump_remote_addrs(seq, assoc);
350 seq_printf(seq, "\n");
352 read_unlock(&head->lock);
353 sctp_local_bh_enable();
358 static struct seq_operations sctp_assoc_ops = {
359 .start = sctp_assocs_seq_start,
360 .next = sctp_assocs_seq_next,
361 .stop = sctp_assocs_seq_stop,
362 .show = sctp_assocs_seq_show,
365 /* Initialize the seq file operations for 'assocs' object. */
366 static int sctp_assocs_seq_open(struct inode *inode, struct file *file)
368 return seq_open(file, &sctp_assoc_ops);
371 static struct file_operations sctp_assocs_seq_fops = {
372 .open = sctp_assocs_seq_open,
375 .release = seq_release,
378 /* Set up the proc fs entry for 'assocs' object. */
379 int __init sctp_assocs_proc_init(void)
381 struct proc_dir_entry *p;
383 p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
387 p->proc_fops = &sctp_assocs_seq_fops;
392 /* Cleanup the proc fs entry for 'assocs' object. */
393 void sctp_assocs_proc_exit(void)
395 remove_proc_entry("assocs", proc_net_sctp);