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

/* SCTP kernel implementation
 * Copyright (c) 2003 International Business Machines, Corp.
 *
 * This file is part of the SCTP kernel implementation
 *
 * This SCTP 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.
 *
 * This SCTP 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>
#include <net/ip.h> /* for snmp_fold_field */

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
};

/* 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,
			   snmp_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 const 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 = proc_create("snmp", S_IRUGO, proc_net_sctp, &sctp_snmp_seq_fops);
	if (!p)
		return -ENOMEM;

	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 = &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 = &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;
	struct hlist_node *node;
	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);
	sctp_for_each_hentry(epb, node, &head->chain) {
		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 const 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 const 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;
	struct hlist_node *node;
	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);
	sctp_for_each_hentry(epb, node, &head->chain) {
		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,
			   atomic_read(&assoc->rmem_alloc),
			   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 const 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 const 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
	1	/* SCTP kernel implementation
	2	* Copyright (c) 2003 International Business Machines, Corp.
	3	*
	4	* This file is part of the SCTP kernel implementation
	5	*
	6	* This SCTP 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	* This SCTP 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	#include <net/ip.h> /* for snmp_fold_field */
	42
	43	static struct snmp_mib sctp_snmp_list[] = {
	44	SNMP_MIB_ITEM("SctpCurrEstab", SCTP_MIB_CURRESTAB),
	45	SNMP_MIB_ITEM("SctpActiveEstabs", SCTP_MIB_ACTIVEESTABS),
	46	SNMP_MIB_ITEM("SctpPassiveEstabs", SCTP_MIB_PASSIVEESTABS),
	47	SNMP_MIB_ITEM("SctpAborteds", SCTP_MIB_ABORTEDS),
	48	SNMP_MIB_ITEM("SctpShutdowns", SCTP_MIB_SHUTDOWNS),
	49	SNMP_MIB_ITEM("SctpOutOfBlues", SCTP_MIB_OUTOFBLUES),
	50	SNMP_MIB_ITEM("SctpChecksumErrors", SCTP_MIB_CHECKSUMERRORS),
	51	SNMP_MIB_ITEM("SctpOutCtrlChunks", SCTP_MIB_OUTCTRLCHUNKS),
	52	SNMP_MIB_ITEM("SctpOutOrderChunks", SCTP_MIB_OUTORDERCHUNKS),
	53	SNMP_MIB_ITEM("SctpOutUnorderChunks", SCTP_MIB_OUTUNORDERCHUNKS),
	54	SNMP_MIB_ITEM("SctpInCtrlChunks", SCTP_MIB_INCTRLCHUNKS),
	55	SNMP_MIB_ITEM("SctpInOrderChunks", SCTP_MIB_INORDERCHUNKS),
	56	SNMP_MIB_ITEM("SctpInUnorderChunks", SCTP_MIB_INUNORDERCHUNKS),
	57	SNMP_MIB_ITEM("SctpFragUsrMsgs", SCTP_MIB_FRAGUSRMSGS),
	58	SNMP_MIB_ITEM("SctpReasmUsrMsgs", SCTP_MIB_REASMUSRMSGS),
	59	SNMP_MIB_ITEM("SctpOutSCTPPacks", SCTP_MIB_OUTSCTPPACKS),
	60	SNMP_MIB_ITEM("SctpInSCTPPacks", SCTP_MIB_INSCTPPACKS),
	61	SNMP_MIB_ITEM("SctpT1InitExpireds", SCTP_MIB_T1_INIT_EXPIREDS),
	62	SNMP_MIB_ITEM("SctpT1CookieExpireds", SCTP_MIB_T1_COOKIE_EXPIREDS),
	63	SNMP_MIB_ITEM("SctpT2ShutdownExpireds", SCTP_MIB_T2_SHUTDOWN_EXPIREDS),
	64	SNMP_MIB_ITEM("SctpT3RtxExpireds", SCTP_MIB_T3_RTX_EXPIREDS),
	65	SNMP_MIB_ITEM("SctpT4RtoExpireds", SCTP_MIB_T4_RTO_EXPIREDS),
	66	SNMP_MIB_ITEM("SctpT5ShutdownGuardExpireds", SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS),
	67	SNMP_MIB_ITEM("SctpDelaySackExpireds", SCTP_MIB_DELAY_SACK_EXPIREDS),
	68	SNMP_MIB_ITEM("SctpAutocloseExpireds", SCTP_MIB_AUTOCLOSE_EXPIREDS),
	69	SNMP_MIB_ITEM("SctpT3Retransmits", SCTP_MIB_T3_RETRANSMITS),
	70	SNMP_MIB_ITEM("SctpPmtudRetransmits", SCTP_MIB_PMTUD_RETRANSMITS),
	71	SNMP_MIB_ITEM("SctpFastRetransmits", SCTP_MIB_FAST_RETRANSMITS),
	72	SNMP_MIB_ITEM("SctpInPktSoftirq", SCTP_MIB_IN_PKT_SOFTIRQ),
	73	SNMP_MIB_ITEM("SctpInPktBacklog", SCTP_MIB_IN_PKT_BACKLOG),
	74	SNMP_MIB_ITEM("SctpInPktDiscards", SCTP_MIB_IN_PKT_DISCARDS),
	75	SNMP_MIB_ITEM("SctpInDataChunkDiscards", SCTP_MIB_IN_DATA_CHUNK_DISCARDS),
	76	SNMP_MIB_SENTINEL
	77	};
	78
	79	/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
	80	static int sctp_snmp_seq_show(struct seq_file seq, void v)
	81	{
	82	int i;
	83
	84	for (i = 0; sctp_snmp_list[i].name != NULL; i++)
	85	seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
	86	snmp_fold_field((void **)sctp_statistics,
	87	sctp_snmp_list[i].entry));
	88
	89	return 0;
	90	}
	91
	92	/* Initialize the seq file operations for 'snmp' object. */
	93	static int sctp_snmp_seq_open(struct inode inode, struct file file)
	94	{
	95	return single_open(file, sctp_snmp_seq_show, NULL);
	96	}
	97
	98	static const struct file_operations sctp_snmp_seq_fops = {
	99	.owner = THIS_MODULE,
	100	.open = sctp_snmp_seq_open,
	101	.read = seq_read,
	102	.llseek = seq_lseek,
	103	.release = single_release,
	104	};
	105
	106	/* Set up the proc fs entry for 'snmp' object. */
	107	int __init sctp_snmp_proc_init(void)
	108	{
	109	struct proc_dir_entry *p;
	110
	111	p = proc_create("snmp", S_IRUGO, proc_net_sctp, &sctp_snmp_seq_fops);
	112	if (!p)
	113	return -ENOMEM;
	114
	115	return 0;
	116	}
	117
	118	/* Cleanup the proc fs entry for 'snmp' object. */
	119	void sctp_snmp_proc_exit(void)
	120	{
	121	remove_proc_entry("snmp", proc_net_sctp);
	122	}
	123
	124	/* Dump local addresses of an association/endpoint. */
	125	static void sctp_seq_dump_local_addrs(struct seq_file seq, struct sctp_ep_common epb)
	126	{
	127	struct list_head *pos;
	128	struct sctp_association *asoc;
	129	struct sctp_sockaddr_entry *laddr;
	130	struct sctp_transport *peer;
	131	union sctp_addr addr, primary = NULL;
	132	struct sctp_af *af;
	133
	134	if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
	135	asoc = sctp_assoc(epb);
	136	peer = asoc->peer.primary_path;
	137	primary = &peer->saddr;
	138	}
	139
	140	list_for_each(pos, &epb->bind_addr.address_list) {
	141	laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
	142	addr = &laddr->a;
	143	af = sctp_get_af_specific(addr->sa.sa_family);
	144	if (primary && af->cmp_addr(addr, primary)) {
	145	seq_printf(seq, "*");
	146	}
	147	af->seq_dump_addr(seq, addr);
	148	}
	149	}
	150
	151	/* Dump remote addresses of an association. */
	152	static void sctp_seq_dump_remote_addrs(struct seq_file seq, struct sctp_association assoc)
	153	{
	154	struct list_head *pos;
	155	struct sctp_transport *transport;
	156	union sctp_addr addr, primary;
	157	struct sctp_af *af;
	158
	159	primary = &assoc->peer.primary_addr;
	160	list_for_each(pos, &assoc->peer.transport_addr_list) {
	161	transport = list_entry(pos, struct sctp_transport, transports);
	162	addr = &transport->ipaddr;
	163	af = sctp_get_af_specific(addr->sa.sa_family);
	164	if (af->cmp_addr(addr, primary)) {
	165	seq_printf(seq, "*");
	166	}
	167	af->seq_dump_addr(seq, addr);
	168	}
	169	}
	170
	171	static void * sctp_eps_seq_start(struct seq_file seq, loff_t pos)
	172	{
	173	if (*pos >= sctp_ep_hashsize)
	174	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
	182	return (void *)pos;
	183	}
	184
	185	static void sctp_eps_seq_stop(struct seq_file seq, void v)
	186	{
	187	return;
	188	}
	189
	190
	191	static void * sctp_eps_seq_next(struct seq_file seq, void v, loff_t *pos)
	192	{
	193	if (++*pos >= sctp_ep_hashsize)
	194	return NULL;
	195
	196	return pos;
	197	}
	198
	199
	200	/* Display sctp endpoints (/proc/net/sctp/eps). */
	201	static int sctp_eps_seq_show(struct seq_file seq, void v)
	202	{
	203	struct sctp_hashbucket *head;
	204	struct sctp_ep_common *epb;
	205	struct sctp_endpoint *ep;
	206	struct sock *sk;
	207	struct hlist_node *node;
	208	int hash = (loff_t )v;
	209
	210	if (hash >= sctp_ep_hashsize)
	211	return -ENOMEM;
	212
	213	head = &sctp_ep_hashtable[hash];
	214	sctp_local_bh_disable();
	215	read_lock(&head->lock);
	216	sctp_for_each_hentry(epb, node, &head->chain) {
	217	ep = sctp_ep(epb);
	218	sk = epb->sk;
	219	seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
	220	sctp_sk(sk)->type, sk->sk_state, hash,
	221	epb->bind_addr.port,
	222	sock_i_uid(sk), sock_i_ino(sk));
	223
	224	sctp_seq_dump_local_addrs(seq, epb);
	225	seq_printf(seq, "\n");
	226	}
	227	read_unlock(&head->lock);
	228	sctp_local_bh_enable();
	229
	230	return 0;
	231	}
	232
	233	static const struct seq_operations sctp_eps_ops = {
	234	.start = sctp_eps_seq_start,
	235	.next = sctp_eps_seq_next,
	236	.stop = sctp_eps_seq_stop,
	237	.show = sctp_eps_seq_show,
	238	};
	239
	240
	241	/* Initialize the seq file operations for 'eps' object. */
	242	static int sctp_eps_seq_open(struct inode inode, struct file file)
	243	{
	244	return seq_open(file, &sctp_eps_ops);
	245	}
	246
	247	static const struct file_operations sctp_eps_seq_fops = {
	248	.open = sctp_eps_seq_open,
	249	.read = seq_read,
	250	.llseek = seq_lseek,
	251	.release = seq_release,
	252	};
	253
	254	/* Set up the proc fs entry for 'eps' object. */
	255	int __init sctp_eps_proc_init(void)
	256	{
	257	struct proc_dir_entry *p;
	258
	259	p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
	260	if (!p)
	261	return -ENOMEM;
	262
	263	p->proc_fops = &sctp_eps_seq_fops;
	264
	265	return 0;
	266	}
	267
	268	/* Cleanup the proc fs entry for 'eps' object. */
	269	void sctp_eps_proc_exit(void)
	270	{
	271	remove_proc_entry("eps", proc_net_sctp);
	272	}
	273
	274
	275	static void * sctp_assocs_seq_start(struct seq_file seq, loff_t pos)
	276	{
	277	if (*pos >= sctp_assoc_hashsize)
	278	return NULL;
	279
	280	if (*pos < 0)
	281	*pos = 0;
	282
	283	if (*pos == 0)
	284	seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
	285	"RPORT LADDRS <-> RADDRS\n");
	286
	287	return (void *)pos;
	288	}
	289
	290	static void sctp_assocs_seq_stop(struct seq_file seq, void v)
	291	{
	292	return;
	293	}
	294
	295
	296	static void * sctp_assocs_seq_next(struct seq_file seq, void v, loff_t *pos)
	297	{
	298	if (++*pos >= sctp_assoc_hashsize)
	299	return NULL;
	300
	301	return pos;
	302	}
	303
	304	/* Display sctp associations (/proc/net/sctp/assocs). */
	305	static int sctp_assocs_seq_show(struct seq_file seq, void v)
	306	{
	307	struct sctp_hashbucket *head;
	308	struct sctp_ep_common *epb;
	309	struct sctp_association *assoc;
	310	struct sock *sk;
	311	struct hlist_node *node;
	312	int hash = (loff_t )v;
	313
	314	if (hash >= sctp_assoc_hashsize)
	315	return -ENOMEM;
	316
	317	head = &sctp_assoc_hashtable[hash];
	318	sctp_local_bh_disable();
	319	read_lock(&head->lock);
	320	sctp_for_each_hentry(epb, node, &head->chain) {
	321	assoc = sctp_assoc(epb);
	322	sk = epb->sk;
	323	seq_printf(seq,
	324	"%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
	325	assoc, sk, sctp_sk(sk)->type, sk->sk_state,
	326	assoc->state, hash, assoc->assoc_id,
	327	assoc->sndbuf_used,
	328	atomic_read(&assoc->rmem_alloc),
	329	sock_i_uid(sk), sock_i_ino(sk),
	330	epb->bind_addr.port,
	331	assoc->peer.port);
	332
	333	seq_printf(seq, " ");
	334	sctp_seq_dump_local_addrs(seq, epb);
	335	seq_printf(seq, "<-> ");
	336	sctp_seq_dump_remote_addrs(seq, assoc);
	337	seq_printf(seq, "\n");
	338	}
	339	read_unlock(&head->lock);
	340	sctp_local_bh_enable();
	341
	342	return 0;
	343	}
	344
	345	static const struct seq_operations sctp_assoc_ops = {
	346	.start = sctp_assocs_seq_start,
	347	.next = sctp_assocs_seq_next,
	348	.stop = sctp_assocs_seq_stop,
	349	.show = sctp_assocs_seq_show,
	350	};
	351
	352	/* Initialize the seq file operations for 'assocs' object. */
	353	static int sctp_assocs_seq_open(struct inode inode, struct file file)
	354	{
	355	return seq_open(file, &sctp_assoc_ops);
	356	}
	357
	358	static const struct file_operations sctp_assocs_seq_fops = {
	359	.open = sctp_assocs_seq_open,
	360	.read = seq_read,
	361	.llseek = seq_lseek,
	362	.release = seq_release,
	363	};
	364
	365	/* Set up the proc fs entry for 'assocs' object. */
	366	int __init sctp_assocs_proc_init(void)
	367	{
	368	struct proc_dir_entry *p;
	369
	370	p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
	371	if (!p)
	372	return -ENOMEM;
	373
	374	p->proc_fops = &sctp_assocs_seq_fops;
	375
	376	return 0;
	377	}
	378
	379	/* Cleanup the proc fs entry for 'assocs' object. */
	380	void sctp_assocs_proc_exit(void)
	381	{
	382	remove_proc_entry("assocs", proc_net_sctp);
	383	}