[deliverable/linux.git] / net / sctp / proc.c

/* SCTP kernel reference Implementation
 * Copyright (c) 2003 International Business Machines, Corp.
 *
 * This file is part of the SCTP kernel reference Implementation
 *
 * The SCTP reference implementation is free software;
 * you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * The SCTP reference implementation is distributed in the hope that it
 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
 *                 ************************
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU CC; see the file COPYING.  If not, write to
 * the Free Software Foundation, 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Please send any bug reports or fixes you make to the
 * email address(es):
 *    lksctp developers <lksctp-developers@lists.sourceforge.net>
 *
 * Or submit a bug report through the following website:
 *    http://www.sf.net/projects/lksctp
 *
 * Written or modified by:
 *    Sridhar Samudrala <sri@us.ibm.com>
 *
 * Any bugs reported given to us we will try to fix... any fixes shared will
 * be incorporated into the next SCTP release.
 */

#include <linux/types.h>
#include <linux/seq_file.h>
#include <linux/init.h>
#include <net/sctp/sctp.h>

static struct snmp_mib sctp_snmp_list[] = {
	SNMP_MIB_ITEM("SctpCurrEstab", SCTP_MIB_CURRESTAB),
	SNMP_MIB_ITEM("SctpActiveEstabs", SCTP_MIB_ACTIVEESTABS),
	SNMP_MIB_ITEM("SctpPassiveEstabs", SCTP_MIB_PASSIVEESTABS),
	SNMP_MIB_ITEM("SctpAborteds", SCTP_MIB_ABORTEDS),
	SNMP_MIB_ITEM("SctpShutdowns", SCTP_MIB_SHUTDOWNS),
	SNMP_MIB_ITEM("SctpOutOfBlues", SCTP_MIB_OUTOFBLUES),
	SNMP_MIB_ITEM("SctpChecksumErrors", SCTP_MIB_CHECKSUMERRORS),
	SNMP_MIB_ITEM("SctpOutCtrlChunks", SCTP_MIB_OUTCTRLCHUNKS),
	SNMP_MIB_ITEM("SctpOutOrderChunks", SCTP_MIB_OUTORDERCHUNKS),
	SNMP_MIB_ITEM("SctpOutUnorderChunks", SCTP_MIB_OUTUNORDERCHUNKS),
	SNMP_MIB_ITEM("SctpInCtrlChunks", SCTP_MIB_INCTRLCHUNKS),
	SNMP_MIB_ITEM("SctpInOrderChunks", SCTP_MIB_INORDERCHUNKS),
	SNMP_MIB_ITEM("SctpInUnorderChunks", SCTP_MIB_INUNORDERCHUNKS),
	SNMP_MIB_ITEM("SctpFragUsrMsgs", SCTP_MIB_FRAGUSRMSGS),
	SNMP_MIB_ITEM("SctpReasmUsrMsgs", SCTP_MIB_REASMUSRMSGS),
	SNMP_MIB_ITEM("SctpOutSCTPPacks", SCTP_MIB_OUTSCTPPACKS),
	SNMP_MIB_ITEM("SctpInSCTPPacks", SCTP_MIB_INSCTPPACKS),
	SNMP_MIB_SENTINEL
};

/* Return the current value of a particular entry in the mib by adding its
 * per cpu counters.
 */ 
static unsigned long
fold_field(void *mib[], int nr)
{
	unsigned long res = 0;
	int i;

	for_each_cpu(i) {
		res +=
		    *((unsigned long *) (((void *) per_cpu_ptr(mib[0], i)) +
					 sizeof (unsigned long) * nr));
		res +=
		    *((unsigned long *) (((void *) per_cpu_ptr(mib[1], i)) +
					 sizeof (unsigned long) * nr));
	}
	return res;
}

/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
static int sctp_snmp_seq_show(struct seq_file *seq, void *v)
{
	int i;

	for (i = 0; sctp_snmp_list[i].name != NULL; i++)
		seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
			   fold_field((void **)sctp_statistics, 
				      sctp_snmp_list[i].entry));

	return 0;
}

/* Initialize the seq file operations for 'snmp' object. */
static int sctp_snmp_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, sctp_snmp_seq_show, NULL);
}

static struct file_operations sctp_snmp_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = sctp_snmp_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release,
};

/* Set up the proc fs entry for 'snmp' object. */
int __init sctp_snmp_proc_init(void)
{
	struct proc_dir_entry *p;

	p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp);
	if (!p)
		return -ENOMEM;

	p->proc_fops = &sctp_snmp_seq_fops;

	return 0;
}

/* Cleanup the proc fs entry for 'snmp' object. */
void sctp_snmp_proc_exit(void)
{
	remove_proc_entry("snmp", proc_net_sctp);
}

/* Dump local addresses of an association/endpoint. */
static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb)
{
	struct list_head *pos;
	struct sctp_association *asoc;
	struct sctp_sockaddr_entry *laddr;
	struct sctp_transport *peer;
	union sctp_addr *addr, *primary = NULL;
	struct sctp_af *af;

	if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
	    asoc = sctp_assoc(epb);
	    peer = asoc->peer.primary_path;
	    primary = &peer->saddr;
	}

	list_for_each(pos, &epb->bind_addr.address_list) {
		laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
		addr = (union sctp_addr *)&laddr->a;
		af = sctp_get_af_specific(addr->sa.sa_family);
		if (primary && af->cmp_addr(addr, primary)) {
			seq_printf(seq, "*");
		}
		af->seq_dump_addr(seq, addr);
	}
}

/* Dump remote addresses of an association. */
static void sctp_seq_dump_remote_addrs(struct seq_file *seq, struct sctp_association *assoc)
{
	struct list_head *pos;
	struct sctp_transport *transport;
	union sctp_addr *addr, *primary;
	struct sctp_af *af;

	primary = &(assoc->peer.primary_addr);
	list_for_each(pos, &assoc->peer.transport_addr_list) {
		transport = list_entry(pos, struct sctp_transport, transports);
		addr = (union sctp_addr *)&transport->ipaddr;
		af = sctp_get_af_specific(addr->sa.sa_family);
		if (af->cmp_addr(addr, primary)) {
			seq_printf(seq, "*");
		}
		af->seq_dump_addr(seq, addr);
	}
}

static void * sctp_eps_seq_start(struct seq_file *seq, loff_t *pos)
{
	if (*pos > sctp_ep_hashsize)
		return NULL;

	if (*pos < 0)
		*pos = 0;

	if (*pos == 0)
		seq_printf(seq, " ENDPT     SOCK   STY SST HBKT LPORT   UID INODE LADDRS\n");

	++*pos;

	return (void *)pos;
}

static void sctp_eps_seq_stop(struct seq_file *seq, void *v)
{
	return;
}


static void * sctp_eps_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
	if (*pos > sctp_ep_hashsize)
		return NULL;

	++*pos;

	return pos;
}


/* Display sctp endpoints (/proc/net/sctp/eps). */
static int sctp_eps_seq_show(struct seq_file *seq, void *v)
{
	struct sctp_hashbucket *head;
	struct sctp_ep_common *epb;
	struct sctp_endpoint *ep;
	struct sock *sk;
	int    hash = *(int *)v;

	if (hash > sctp_ep_hashsize)
		return -ENOMEM;

	head = &sctp_ep_hashtable[hash-1];
	sctp_local_bh_disable();
	read_lock(&head->lock);
	for (epb = head->chain; epb; epb = epb->next) {
		ep = sctp_ep(epb);
		sk = epb->sk;
		seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
			   sctp_sk(sk)->type, sk->sk_state, hash-1,
			   epb->bind_addr.port,
			   sock_i_uid(sk), sock_i_ino(sk));

		sctp_seq_dump_local_addrs(seq, epb);
		seq_printf(seq, "\n");
	}
	read_unlock(&head->lock);
	sctp_local_bh_enable();

	return 0;
}

static struct seq_operations sctp_eps_ops = {
	.start = sctp_eps_seq_start,
	.next  = sctp_eps_seq_next,
	.stop  = sctp_eps_seq_stop,
	.show  = sctp_eps_seq_show,
};


/* Initialize the seq file operations for 'eps' object. */
static int sctp_eps_seq_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &sctp_eps_ops);
}

static struct file_operations sctp_eps_seq_fops = {
	.open	 = sctp_eps_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = seq_release,
};

/* Set up the proc fs entry for 'eps' object. */
int __init sctp_eps_proc_init(void)
{
	struct proc_dir_entry *p;

	p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
	if (!p)
		return -ENOMEM;

	p->proc_fops = &sctp_eps_seq_fops;

	return 0;
}

/* Cleanup the proc fs entry for 'eps' object. */
void sctp_eps_proc_exit(void)
{
	remove_proc_entry("eps", proc_net_sctp);
}


static void * sctp_assocs_seq_start(struct seq_file *seq, loff_t *pos)
{
	if (*pos > sctp_assoc_hashsize)
		return NULL;

	if (*pos < 0)
		*pos = 0;

	if (*pos == 0)
		seq_printf(seq, " ASSOC     SOCK   STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
				"RPORT LADDRS <-> RADDRS\n");

	++*pos;

	return (void *)pos;
}

static void sctp_assocs_seq_stop(struct seq_file *seq, void *v)
{
	return;
}


static void * sctp_assocs_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
	if (*pos > sctp_assoc_hashsize)
		return NULL;

	++*pos;

	return pos;
}

/* Display sctp associations (/proc/net/sctp/assocs). */
static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
{
	struct sctp_hashbucket *head;
	struct sctp_ep_common *epb;
	struct sctp_association *assoc;
	struct sock *sk;
	int    hash = *(int *)v;

	if (hash > sctp_assoc_hashsize)
		return -ENOMEM;

	head = &sctp_assoc_hashtable[hash-1];
	sctp_local_bh_disable();
	read_lock(&head->lock);
	for (epb = head->chain; epb; epb = epb->next) {
		assoc = sctp_assoc(epb);
		sk = epb->sk;
		seq_printf(seq,
			   "%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
			   assoc, sk, sctp_sk(sk)->type, sk->sk_state,
			   assoc->state, hash-1, assoc->assoc_id,
			   (sk->sk_rcvbuf - assoc->rwnd),
			   assoc->sndbuf_used,
			   sock_i_uid(sk), sock_i_ino(sk),
			   epb->bind_addr.port,
			   assoc->peer.port);

		seq_printf(seq, " ");
		sctp_seq_dump_local_addrs(seq, epb);
		seq_printf(seq, "<-> ");
		sctp_seq_dump_remote_addrs(seq, assoc);
		seq_printf(seq, "\n");
	}
	read_unlock(&head->lock);
	sctp_local_bh_enable();

	return 0;
}

static struct seq_operations sctp_assoc_ops = {
	.start = sctp_assocs_seq_start,
	.next  = sctp_assocs_seq_next,
	.stop  = sctp_assocs_seq_stop,
	.show  = sctp_assocs_seq_show,
};

/* Initialize the seq file operations for 'assocs' object. */
static int sctp_assocs_seq_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &sctp_assoc_ops);
}

static struct file_operations sctp_assocs_seq_fops = {
	.open	 = sctp_assocs_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = seq_release,
};

/* Set up the proc fs entry for 'assocs' object. */
int __init sctp_assocs_proc_init(void)
{
	struct proc_dir_entry *p;

	p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
	if (!p)
		return -ENOMEM;

	p->proc_fops = &sctp_assocs_seq_fops;

	return 0;
}

/* Cleanup the proc fs entry for 'assocs' object. */
void sctp_assocs_proc_exit(void)
{
	remove_proc_entry("assocs", proc_net_sctp);
}
Commit	Line	Data
1da177e4 LT	1	/* SCTP kernel reference Implementation
	2	* Copyright (c) 2003 International Business Machines, Corp.
	3	*
	4	* This file is part of the SCTP kernel reference Implementation
	5	*
	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)
	10	* any later version.
	11	*
	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.
	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>
	40	#include <net/sctp/sctp.h>
	41
	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),
d2287f84	60	SNMP_MIB_SENTINEL
1da177e4 LT	61	};
	62
	63	/* Return the current value of a particular entry in the mib by adding its
	64	* per cpu counters.
	65	*/
	66	static unsigned long
	67	fold_field(void *mib[], int nr)
	68	{
	69	unsigned long res = 0;
	70	int i;
	71
670c02c2	72	for_each_cpu(i) {
1da177e4 LT	73	res +=
	74	((unsigned long ) (((void *) per_cpu_ptr(mib[0], i)) +
	75	sizeof (unsigned long) * nr));
	76	res +=
	77	((unsigned long ) (((void *) per_cpu_ptr(mib[1], i)) +
	78	sizeof (unsigned long) * nr));
	79	}
	80	return res;
	81	}
	82
	83	/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
	84	static int sctp_snmp_seq_show(struct seq_file seq, void v)
	85	{
	86	int i;
	87
	88	for (i = 0; sctp_snmp_list[i].name != NULL; i++)
	89	seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
	90	fold_field((void **)sctp_statistics,
	91	sctp_snmp_list[i].entry));
	92
	93	return 0;
	94	}
	95
	96	/* Initialize the seq file operations for 'snmp' object. */
	97	static int sctp_snmp_seq_open(struct inode inode, struct file file)
	98	{
	99	return single_open(file, sctp_snmp_seq_show, NULL);
	100	}
	101
	102	static struct file_operations sctp_snmp_seq_fops = {
	103	.owner = THIS_MODULE,
	104	.open = sctp_snmp_seq_open,
	105	.read = seq_read,
	106	.llseek = seq_lseek,
	107	.release = single_release,
	108	};
	109
	110	/* Set up the proc fs entry for 'snmp' object. */
	111	int __init sctp_snmp_proc_init(void)
	112	{
	113	struct proc_dir_entry *p;
	114
	115	p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp);
	116	if (!p)
	117	return -ENOMEM;
	118
	119	p->proc_fops = &sctp_snmp_seq_fops;
	120
	121	return 0;
	122	}
	123
	124	/* Cleanup the proc fs entry for 'snmp' object. */
	125	void sctp_snmp_proc_exit(void)
	126	{
	127	remove_proc_entry("snmp", proc_net_sctp);
	128	}
	129
	130	/* Dump local addresses of an association/endpoint. */
	131	static void sctp_seq_dump_local_addrs(struct seq_file seq, struct sctp_ep_common epb)
	132	{
	133	struct list_head *pos;
bca735bd	134	struct sctp_association *asoc;
1da177e4	135	struct sctp_sockaddr_entry *laddr;
bca735bd VY	136	struct sctp_transport *peer;
bca735bd VY	137	union sctp_addr addr, primary = NULL;
1da177e4 LT	138	struct sctp_af *af;
1da177e4 LT	139
bca735bd VY	140	if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
	141	asoc = sctp_assoc(epb);
	142	peer = asoc->peer.primary_path;
	143	primary = &peer->saddr;
	144	}
	145
1da177e4 LT	146	list_for_each(pos, &epb->bind_addr.address_list) {
	147	laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
	148	addr = (union sctp_addr *)&laddr->a;
	149	af = sctp_get_af_specific(addr->sa.sa_family);
bca735bd VY	150	if (primary && af->cmp_addr(addr, primary)) {
	151	seq_printf(seq, "*");
	152	}
1da177e4 LT	153	af->seq_dump_addr(seq, addr);
	154	}
	155	}
	156
	157	/* Dump remote addresses of an association. */
	158	static void sctp_seq_dump_remote_addrs(struct seq_file seq, struct sctp_association assoc)
	159	{
	160	struct list_head *pos;
	161	struct sctp_transport *transport;
bca735bd	162	union sctp_addr addr, primary;
1da177e4 LT	163	struct sctp_af *af;
1da177e4 LT	164
bca735bd	165	primary = &(assoc->peer.primary_addr);
1da177e4 LT	166	list_for_each(pos, &assoc->peer.transport_addr_list) {
	167	transport = list_entry(pos, struct sctp_transport, transports);
	168	addr = (union sctp_addr *)&transport->ipaddr;
	169	af = sctp_get_af_specific(addr->sa.sa_family);
bca735bd VY	170	if (af->cmp_addr(addr, primary)) {
	171	seq_printf(seq, "*");
	172	}
1da177e4 LT	173	af->seq_dump_addr(seq, addr);
	174	}
	175	}
	176
bca735bd VY	177	static void * sctp_eps_seq_start(struct seq_file seq, loff_t pos)
	178	{
	179	if (*pos > sctp_ep_hashsize)
	180	return NULL;
	181
	182	if (*pos < 0)
	183	*pos = 0;
	184
	185	if (*pos == 0)
	186	seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT UID INODE LADDRS\n");
	187
	188	++*pos;
	189
	190	return (void *)pos;
	191	}
	192
	193	static void sctp_eps_seq_stop(struct seq_file seq, void v)
	194	{
	195	return;
	196	}
	197
	198
	199	static void * sctp_eps_seq_next(struct seq_file seq, void v, loff_t *pos)
	200	{
	201	if (*pos > sctp_ep_hashsize)
	202	return NULL;
	203
	204	++*pos;
	205
	206	return pos;
	207	}
	208
	209
1da177e4 LT	210	/* Display sctp endpoints (/proc/net/sctp/eps). */
	211	static int sctp_eps_seq_show(struct seq_file seq, void v)
	212	{
	213	struct sctp_hashbucket *head;
	214	struct sctp_ep_common *epb;
	215	struct sctp_endpoint *ep;
	216	struct sock *sk;
bca735bd VY	217	int hash = (int )v;
	218
	219	if (hash > sctp_ep_hashsize)
	220	return -ENOMEM;
	221
	222	head = &sctp_ep_hashtable[hash-1];
	223	sctp_local_bh_disable();
	224	read_lock(&head->lock);
	225	for (epb = head->chain; epb; epb = epb->next) {
	226	ep = sctp_ep(epb);
	227	sk = epb->sk;
	228	seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
	229	sctp_sk(sk)->type, sk->sk_state, hash-1,
	230	epb->bind_addr.port,
	231	sock_i_uid(sk), sock_i_ino(sk));
	232
	233	sctp_seq_dump_local_addrs(seq, epb);
	234	seq_printf(seq, "\n");
1da177e4	235	}
bca735bd VY	236	read_unlock(&head->lock);
bca735bd VY	237	sctp_local_bh_enable();
1da177e4 LT	238
	239	return 0;
	240	}
	241
bca735bd VY	242	static struct seq_operations sctp_eps_ops = {
	243	.start = sctp_eps_seq_start,
	244	.next = sctp_eps_seq_next,
	245	.stop = sctp_eps_seq_stop,
	246	.show = sctp_eps_seq_show,
	247	};
	248
	249
1da177e4 LT	250	/* Initialize the seq file operations for 'eps' object. */
	251	static int sctp_eps_seq_open(struct inode inode, struct file file)
	252	{
bca735bd	253	return seq_open(file, &sctp_eps_ops);
1da177e4 LT	254	}
	255
	256	static struct file_operations sctp_eps_seq_fops = {
	257	.open = sctp_eps_seq_open,
	258	.read = seq_read,
	259	.llseek = seq_lseek,
bca735bd	260	.release = seq_release,
1da177e4 LT	261	};
	262
	263	/* Set up the proc fs entry for 'eps' object. */
	264	int __init sctp_eps_proc_init(void)
	265	{
	266	struct proc_dir_entry *p;
	267
	268	p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
	269	if (!p)
	270	return -ENOMEM;
	271
	272	p->proc_fops = &sctp_eps_seq_fops;
	273
	274	return 0;
	275	}
	276
	277	/* Cleanup the proc fs entry for 'eps' object. */
	278	void sctp_eps_proc_exit(void)
	279	{
	280	remove_proc_entry("eps", proc_net_sctp);
	281	}
	282
bca735bd VY	283
	284	static void * sctp_assocs_seq_start(struct seq_file seq, loff_t pos)
	285	{
	286	if (*pos > sctp_assoc_hashsize)
	287	return NULL;
	288
	289	if (*pos < 0)
	290	*pos = 0;
	291
	292	if (*pos == 0)
	293	seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
	294	"RPORT LADDRS <-> RADDRS\n");
	295
	296	++*pos;
	297
	298	return (void *)pos;
	299	}
	300
	301	static void sctp_assocs_seq_stop(struct seq_file seq, void v)
	302	{
	303	return;
	304	}
	305
	306
	307	static void * sctp_assocs_seq_next(struct seq_file seq, void v, loff_t *pos)
	308	{
	309	if (*pos > sctp_assoc_hashsize)
	310	return NULL;
	311
	312	++*pos;
	313
	314	return pos;
	315	}
	316
1da177e4 LT	317	/* Display sctp associations (/proc/net/sctp/assocs). */
	318	static int sctp_assocs_seq_show(struct seq_file seq, void v)
	319	{
	320	struct sctp_hashbucket *head;
	321	struct sctp_ep_common *epb;
	322	struct sctp_association *assoc;
	323	struct sock *sk;
bca735bd VY	324	int hash = (int )v;
	325
	326	if (hash > sctp_assoc_hashsize)
	327	return -ENOMEM;
	328
	329	head = &sctp_assoc_hashtable[hash-1];
	330	sctp_local_bh_disable();
	331	read_lock(&head->lock);
	332	for (epb = head->chain; epb; epb = epb->next) {
	333	assoc = sctp_assoc(epb);
	334	sk = epb->sk;
	335	seq_printf(seq,
	336	"%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
	337	assoc, sk, sctp_sk(sk)->type, sk->sk_state,
	338	assoc->state, hash-1, assoc->assoc_id,
	339	(sk->sk_rcvbuf - assoc->rwnd),
	340	assoc->sndbuf_used,
	341	sock_i_uid(sk), sock_i_ino(sk),
	342	epb->bind_addr.port,
	343	assoc->peer.port);
	344
	345	seq_printf(seq, " ");
	346	sctp_seq_dump_local_addrs(seq, epb);
	347	seq_printf(seq, "<-> ");
	348	sctp_seq_dump_remote_addrs(seq, assoc);
	349	seq_printf(seq, "\n");
1da177e4	350	}
bca735bd VY	351	read_unlock(&head->lock);
bca735bd VY	352	sctp_local_bh_enable();
1da177e4 LT	353
	354	return 0;
	355	}
	356
bca735bd VY	357	static struct seq_operations sctp_assoc_ops = {
	358	.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
1da177e4 LT	364	/* Initialize the seq file operations for 'assocs' object. */
	365	static int sctp_assocs_seq_open(struct inode inode, struct file file)
	366	{
bca735bd	367	return seq_open(file, &sctp_assoc_ops);
1da177e4 LT	368	}
	369
	370	static struct file_operations sctp_assocs_seq_fops = {
	371	.open = sctp_assocs_seq_open,
	372	.read = seq_read,
	373	.llseek = seq_lseek,
bca735bd	374	.release = seq_release,
1da177e4 LT	375	};
	376
	377	/* Set up the proc fs entry for 'assocs' object. */
	378	int __init sctp_assocs_proc_init(void)
	379	{
	380	struct proc_dir_entry *p;
	381
	382	p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
	383	if (!p)
	384	return -ENOMEM;
	385
	386	p->proc_fops = &sctp_assocs_seq_fops;
	387
	388	return 0;
	389	}
	390
	391	/* Cleanup the proc fs entry for 'assocs' object. */
	392	void sctp_assocs_proc_exit(void)
	393	{
	394	remove_proc_entry("assocs", proc_net_sctp);
	395	}