[net-next-2.6.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_ITEM("SctpT1InitExpireds", SCTP_MIB_T1_INIT_EXPIREDS),
	SNMP_MIB_ITEM("SctpT1CookieExpireds", SCTP_MIB_T1_COOKIE_EXPIREDS),
	SNMP_MIB_ITEM("SctpT2ShutdownExpireds", SCTP_MIB_T2_SHUTDOWN_EXPIREDS),
	SNMP_MIB_ITEM("SctpT3RtxExpireds", SCTP_MIB_T3_RTX_EXPIREDS),
	SNMP_MIB_ITEM("SctpT4RtoExpireds", SCTP_MIB_T4_RTO_EXPIREDS),
	SNMP_MIB_ITEM("SctpT5ShutdownGuardExpireds", SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS),
	SNMP_MIB_ITEM("SctpDelaySackExpireds", SCTP_MIB_DELAY_SACK_EXPIREDS),
	SNMP_MIB_ITEM("SctpAutocloseExpireds", SCTP_MIB_AUTOCLOSE_EXPIREDS),
	SNMP_MIB_ITEM("SctpT3Retransmits", SCTP_MIB_T3_RETRANSMITS),
	SNMP_MIB_ITEM("SctpPmtudRetransmits", SCTP_MIB_PMTUD_RETRANSMITS),
	SNMP_MIB_ITEM("SctpFastRetransmits", SCTP_MIB_FAST_RETRANSMITS),
	SNMP_MIB_ITEM("SctpInPktSoftirq", SCTP_MIB_IN_PKT_SOFTIRQ),
	SNMP_MIB_ITEM("SctpInPktBacklog", SCTP_MIB_IN_PKT_BACKLOG),
	SNMP_MIB_ITEM("SctpInPktDiscards", SCTP_MIB_IN_PKT_DISCARDS),
	SNMP_MIB_ITEM("SctpInDataChunkDiscards", SCTP_MIB_IN_DATA_CHUNK_DISCARDS),
	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_possible_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");

	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;

	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 = *(loff_t *)v;

	if (hash >= sctp_ep_hashsize)
		return -ENOMEM;

	head = &sctp_ep_hashtable[hash];
	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,
			   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");

	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;

	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 = *(loff_t *)v;

	if (hash >= sctp_assoc_hashsize)
		return -ENOMEM;

	head = &sctp_assoc_hashtable[hash];
	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, assoc->assoc_id,
			   assoc->sndbuf_used,
			   (sk->sk_rcvbuf - assoc->rwnd),
			   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),
ac0b0462 SS	60	SNMP_MIB_ITEM("SctpT1InitExpireds", SCTP_MIB_T1_INIT_EXPIREDS),
	61	SNMP_MIB_ITEM("SctpT1CookieExpireds", SCTP_MIB_T1_COOKIE_EXPIREDS),
	62	SNMP_MIB_ITEM("SctpT2ShutdownExpireds", SCTP_MIB_T2_SHUTDOWN_EXPIREDS),
	63	SNMP_MIB_ITEM("SctpT3RtxExpireds", SCTP_MIB_T3_RTX_EXPIREDS),
	64	SNMP_MIB_ITEM("SctpT4RtoExpireds", SCTP_MIB_T4_RTO_EXPIREDS),
	65	SNMP_MIB_ITEM("SctpT5ShutdownGuardExpireds", SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS),
	66	SNMP_MIB_ITEM("SctpDelaySackExpireds", SCTP_MIB_DELAY_SACK_EXPIREDS),
	67	SNMP_MIB_ITEM("SctpAutocloseExpireds", SCTP_MIB_AUTOCLOSE_EXPIREDS),
	68	SNMP_MIB_ITEM("SctpT3Retransmits", SCTP_MIB_T3_RETRANSMITS),
	69	SNMP_MIB_ITEM("SctpPmtudRetransmits", SCTP_MIB_PMTUD_RETRANSMITS),
	70	SNMP_MIB_ITEM("SctpFastRetransmits", SCTP_MIB_FAST_RETRANSMITS),
	71	SNMP_MIB_ITEM("SctpInPktSoftirq", SCTP_MIB_IN_PKT_SOFTIRQ),
	72	SNMP_MIB_ITEM("SctpInPktBacklog", SCTP_MIB_IN_PKT_BACKLOG),
	73	SNMP_MIB_ITEM("SctpInPktDiscards", SCTP_MIB_IN_PKT_DISCARDS),
	74	SNMP_MIB_ITEM("SctpInDataChunkDiscards", SCTP_MIB_IN_DATA_CHUNK_DISCARDS),
d2287f84	75	SNMP_MIB_SENTINEL
1da177e4 LT	76	};
	77
	78	/* Return the current value of a particular entry in the mib by adding its
	79	* per cpu counters.
	80	*/
	81	static unsigned long
	82	fold_field(void *mib[], int nr)
	83	{
	84	unsigned long res = 0;
	85	int i;
	86
6f912042	87	for_each_possible_cpu(i) {
1da177e4 LT	88	res +=
	89	((unsigned long ) (((void *) per_cpu_ptr(mib[0], i)) +
	90	sizeof (unsigned long) * nr));
	91	res +=
	92	((unsigned long ) (((void *) per_cpu_ptr(mib[1], i)) +
	93	sizeof (unsigned long) * nr));
	94	}
	95	return res;
	96	}
	97
	98	/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
	99	static int sctp_snmp_seq_show(struct seq_file seq, void v)
	100	{
	101	int i;
	102
	103	for (i = 0; sctp_snmp_list[i].name != NULL; i++)
	104	seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
	105	fold_field((void **)sctp_statistics,
	106	sctp_snmp_list[i].entry));
	107
	108	return 0;
	109	}
	110
	111	/* Initialize the seq file operations for 'snmp' object. */
	112	static int sctp_snmp_seq_open(struct inode inode, struct file file)
	113	{
	114	return single_open(file, sctp_snmp_seq_show, NULL);
	115	}
	116
	117	static struct file_operations sctp_snmp_seq_fops = {
	118	.owner = THIS_MODULE,
	119	.open = sctp_snmp_seq_open,
	120	.read = seq_read,
	121	.llseek = seq_lseek,
	122	.release = single_release,
	123	};
	124
	125	/* Set up the proc fs entry for 'snmp' object. */
	126	int __init sctp_snmp_proc_init(void)
	127	{
	128	struct proc_dir_entry *p;
	129
	130	p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp);
	131	if (!p)
	132	return -ENOMEM;
	133
	134	p->proc_fops = &sctp_snmp_seq_fops;
	135
	136	return 0;
	137	}
	138
	139	/* Cleanup the proc fs entry for 'snmp' object. */
	140	void sctp_snmp_proc_exit(void)
	141	{
	142	remove_proc_entry("snmp", proc_net_sctp);
	143	}
	144
	145	/* Dump local addresses of an association/endpoint. */
	146	static void sctp_seq_dump_local_addrs(struct seq_file seq, struct sctp_ep_common epb)
	147	{
	148	struct list_head *pos;
bca735bd	149	struct sctp_association *asoc;
1da177e4	150	struct sctp_sockaddr_entry *laddr;
bca735bd VY	151	struct sctp_transport *peer;
bca735bd VY	152	union sctp_addr addr, primary = NULL;
1da177e4 LT	153	struct sctp_af *af;
1da177e4 LT	154
bca735bd VY	155	if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
	156	asoc = sctp_assoc(epb);
	157	peer = asoc->peer.primary_path;
	158	primary = &peer->saddr;
	159	}
	160
1da177e4 LT	161	list_for_each(pos, &epb->bind_addr.address_list) {
	162	laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
	163	addr = (union sctp_addr *)&laddr->a;
	164	af = sctp_get_af_specific(addr->sa.sa_family);
bca735bd VY	165	if (primary && af->cmp_addr(addr, primary)) {
	166	seq_printf(seq, "*");
	167	}
1da177e4 LT	168	af->seq_dump_addr(seq, addr);
	169	}
	170	}
	171
	172	/* Dump remote addresses of an association. */
	173	static void sctp_seq_dump_remote_addrs(struct seq_file seq, struct sctp_association assoc)
	174	{
	175	struct list_head *pos;
	176	struct sctp_transport *transport;
bca735bd	177	union sctp_addr addr, primary;
1da177e4 LT	178	struct sctp_af *af;
1da177e4 LT	179
bca735bd	180	primary = &(assoc->peer.primary_addr);
1da177e4 LT	181	list_for_each(pos, &assoc->peer.transport_addr_list) {
	182	transport = list_entry(pos, struct sctp_transport, transports);
	183	addr = (union sctp_addr *)&transport->ipaddr;
	184	af = sctp_get_af_specific(addr->sa.sa_family);
bca735bd VY	185	if (af->cmp_addr(addr, primary)) {
	186	seq_printf(seq, "*");
	187	}
1da177e4 LT	188	af->seq_dump_addr(seq, addr);
	189	}
	190	}
	191
bca735bd VY	192	static void * sctp_eps_seq_start(struct seq_file seq, loff_t pos)
bca735bd VY	193	{
49392e5e	194	if (*pos >= sctp_ep_hashsize)
bca735bd VY	195	return NULL;
	196
	197	if (*pos < 0)
	198	*pos = 0;
	199
	200	if (*pos == 0)
	201	seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT UID INODE LADDRS\n");
	202
bca735bd VY	203	return (void *)pos;
	204	}
	205
	206	static void sctp_eps_seq_stop(struct seq_file seq, void v)
	207	{
	208	return;
	209	}
	210
	211
	212	static void * sctp_eps_seq_next(struct seq_file seq, void v, loff_t *pos)
	213	{
49392e5e	214	if (++*pos >= sctp_ep_hashsize)
bca735bd VY	215	return NULL;
bca735bd VY	216
bca735bd VY	217	return pos;
	218	}
	219
	220
1da177e4 LT	221	/* Display sctp endpoints (/proc/net/sctp/eps). */
	222	static int sctp_eps_seq_show(struct seq_file seq, void v)
	223	{
	224	struct sctp_hashbucket *head;
	225	struct sctp_ep_common *epb;
	226	struct sctp_endpoint *ep;
	227	struct sock *sk;
38b0e42a	228	int hash = (loff_t )v;
bca735bd	229
49392e5e	230	if (hash >= sctp_ep_hashsize)
bca735bd VY	231	return -ENOMEM;
bca735bd VY	232
49392e5e	233	head = &sctp_ep_hashtable[hash];
bca735bd VY	234	sctp_local_bh_disable();
	235	read_lock(&head->lock);
	236	for (epb = head->chain; epb; epb = epb->next) {
	237	ep = sctp_ep(epb);
	238	sk = epb->sk;
	239	seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
49392e5e	240	sctp_sk(sk)->type, sk->sk_state, hash,
bca735bd VY	241	epb->bind_addr.port,
	242	sock_i_uid(sk), sock_i_ino(sk));
	243
	244	sctp_seq_dump_local_addrs(seq, epb);
	245	seq_printf(seq, "\n");
1da177e4	246	}
bca735bd VY	247	read_unlock(&head->lock);
bca735bd VY	248	sctp_local_bh_enable();
1da177e4 LT	249
	250	return 0;
	251	}
	252
bca735bd VY	253	static struct seq_operations sctp_eps_ops = {
	254	.start = sctp_eps_seq_start,
	255	.next = sctp_eps_seq_next,
	256	.stop = sctp_eps_seq_stop,
	257	.show = sctp_eps_seq_show,
	258	};
	259
	260
1da177e4 LT	261	/* Initialize the seq file operations for 'eps' object. */
	262	static int sctp_eps_seq_open(struct inode inode, struct file file)
	263	{
bca735bd	264	return seq_open(file, &sctp_eps_ops);
1da177e4 LT	265	}
	266
	267	static struct file_operations sctp_eps_seq_fops = {
	268	.open = sctp_eps_seq_open,
	269	.read = seq_read,
	270	.llseek = seq_lseek,
bca735bd	271	.release = seq_release,
1da177e4 LT	272	};
	273
	274	/* Set up the proc fs entry for 'eps' object. */
	275	int __init sctp_eps_proc_init(void)
	276	{
	277	struct proc_dir_entry *p;
	278
	279	p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
	280	if (!p)
	281	return -ENOMEM;
	282
	283	p->proc_fops = &sctp_eps_seq_fops;
	284
	285	return 0;
	286	}
	287
	288	/* Cleanup the proc fs entry for 'eps' object. */
	289	void sctp_eps_proc_exit(void)
	290	{
	291	remove_proc_entry("eps", proc_net_sctp);
	292	}
	293
bca735bd VY	294
	295	static void * sctp_assocs_seq_start(struct seq_file seq, loff_t pos)
	296	{
49392e5e	297	if (*pos >= sctp_assoc_hashsize)
bca735bd VY	298	return NULL;
	299
	300	if (*pos < 0)
	301	*pos = 0;
	302
	303	if (*pos == 0)
	304	seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
	305	"RPORT LADDRS <-> RADDRS\n");
	306
bca735bd VY	307	return (void *)pos;
	308	}
	309
	310	static void sctp_assocs_seq_stop(struct seq_file seq, void v)
	311	{
	312	return;
	313	}
	314
	315
	316	static void * sctp_assocs_seq_next(struct seq_file seq, void v, loff_t *pos)
	317	{
49392e5e	318	if (++*pos >= sctp_assoc_hashsize)
bca735bd VY	319	return NULL;
bca735bd VY	320
bca735bd VY	321	return pos;
	322	}
	323
1da177e4 LT	324	/* Display sctp associations (/proc/net/sctp/assocs). */
	325	static int sctp_assocs_seq_show(struct seq_file seq, void v)
	326	{
	327	struct sctp_hashbucket *head;
	328	struct sctp_ep_common *epb;
	329	struct sctp_association *assoc;
	330	struct sock *sk;
38b0e42a	331	int hash = (loff_t )v;
bca735bd	332
49392e5e	333	if (hash >= sctp_assoc_hashsize)
bca735bd VY	334	return -ENOMEM;
bca735bd VY	335
49392e5e	336	head = &sctp_assoc_hashtable[hash];
bca735bd VY	337	sctp_local_bh_disable();
	338	read_lock(&head->lock);
	339	for (epb = head->chain; epb; epb = epb->next) {
	340	assoc = sctp_assoc(epb);
	341	sk = epb->sk;
	342	seq_printf(seq,
	343	"%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
	344	assoc, sk, sctp_sk(sk)->type, sk->sk_state,
49392e5e	345	assoc->state, hash, assoc->assoc_id,
bca735bd	346	assoc->sndbuf_used,
ac0b0462	347	(sk->sk_rcvbuf - assoc->rwnd),
bca735bd VY	348	sock_i_uid(sk), sock_i_ino(sk),
	349	epb->bind_addr.port,
	350	assoc->peer.port);
	351
	352	seq_printf(seq, " ");
	353	sctp_seq_dump_local_addrs(seq, epb);
	354	seq_printf(seq, "<-> ");
	355	sctp_seq_dump_remote_addrs(seq, assoc);
	356	seq_printf(seq, "\n");
1da177e4	357	}
bca735bd VY	358	read_unlock(&head->lock);
bca735bd VY	359	sctp_local_bh_enable();
1da177e4 LT	360
	361	return 0;
	362	}
	363
bca735bd VY	364	static struct seq_operations sctp_assoc_ops = {
	365	.start = sctp_assocs_seq_start,
	366	.next = sctp_assocs_seq_next,
	367	.stop = sctp_assocs_seq_stop,
	368	.show = sctp_assocs_seq_show,
	369	};
	370
1da177e4 LT	371	/* Initialize the seq file operations for 'assocs' object. */
	372	static int sctp_assocs_seq_open(struct inode inode, struct file file)
	373	{
bca735bd	374	return seq_open(file, &sctp_assoc_ops);
1da177e4 LT	375	}
	376
	377	static struct file_operations sctp_assocs_seq_fops = {
	378	.open = sctp_assocs_seq_open,
	379	.read = seq_read,
	380	.llseek = seq_lseek,
bca735bd	381	.release = seq_release,
1da177e4 LT	382	};
	383
	384	/* Set up the proc fs entry for 'assocs' object. */
	385	int __init sctp_assocs_proc_init(void)
	386	{
	387	struct proc_dir_entry *p;
	388
	389	p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
	390	if (!p)
	391	return -ENOMEM;
	392
	393	p->proc_fops = &sctp_assocs_seq_fops;
	394
	395	return 0;
	396	}
	397
	398	/* Cleanup the proc fs entry for 'assocs' object. */
	399	void sctp_assocs_proc_exit(void)
	400	{
	401	remove_proc_entry("assocs", proc_net_sctp);
	402	}