[mirror_ubuntu-bionic-kernel.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>

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 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 = 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 = &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
60c778b2	1	/* SCTP kernel implementation
1da177e4 LT	2	* Copyright (c) 2003 International Business Machines, Corp.
1da177e4 LT	3	*
60c778b2	4	* This file is part of the SCTP kernel implementation
1da177e4	5	*
60c778b2	6	* This SCTP implementation is free software;
1da177e4 LT	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	*
60c778b2	12	* This SCTP implementation is distributed in the hope that it
1da177e4 LT	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.
d808ad9a	80	*/
1da177e4 LT	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,
d808ad9a	105	fold_field((void **)sctp_statistics,
1da177e4 LT	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
da7071d7	117	static const struct file_operations sctp_snmp_seq_fops = {
1da177e4 LT	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;
5f242a13	158	primary = &peer->saddr;
bca735bd VY	159	}
bca735bd VY	160
1da177e4 LT	161	list_for_each(pos, &epb->bind_addr.address_list) {
1da177e4 LT	162	laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
5f242a13	163	addr = &laddr->a;
1da177e4	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	}
5f242a13	168	af->seq_dump_addr(seq, addr);
1da177e4 LT	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
acd2bc96	180	primary = &assoc->peer.primary_addr;
1da177e4 LT	181	list_for_each(pos, &assoc->peer.transport_addr_list) {
1da177e4 LT	182	transport = list_entry(pos, struct sctp_transport, transports);
5f242a13	183	addr = &transport->ipaddr;
1da177e4	184	af = sctp_get_af_specific(addr->sa.sa_family);
acd2bc96	185	if (af->cmp_addr(addr, primary)) {
bca735bd VY	186	seq_printf(seq, "*");
bca735bd VY	187	}
5f242a13	188	af->seq_dump_addr(seq, addr);
1da177e4 LT	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;
d970dbf8	228	struct hlist_node *node;
38b0e42a	229	int hash = (loff_t )v;
bca735bd	230
49392e5e	231	if (hash >= sctp_ep_hashsize)
bca735bd VY	232	return -ENOMEM;
bca735bd VY	233
49392e5e	234	head = &sctp_ep_hashtable[hash];
bca735bd VY	235	sctp_local_bh_disable();
bca735bd VY	236	read_lock(&head->lock);
d970dbf8	237	sctp_for_each_hentry(epb, node, &head->chain) {
bca735bd VY	238	ep = sctp_ep(epb);
	239	sk = epb->sk;
	240	seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk,
49392e5e	241	sctp_sk(sk)->type, sk->sk_state, hash,
bca735bd VY	242	epb->bind_addr.port,
	243	sock_i_uid(sk), sock_i_ino(sk));
	244
	245	sctp_seq_dump_local_addrs(seq, epb);
	246	seq_printf(seq, "\n");
1da177e4	247	}
bca735bd VY	248	read_unlock(&head->lock);
bca735bd VY	249	sctp_local_bh_enable();
1da177e4 LT	250
	251	return 0;
	252	}
	253
56b3d975	254	static const struct seq_operations sctp_eps_ops = {
bca735bd VY	255	.start = sctp_eps_seq_start,
	256	.next = sctp_eps_seq_next,
	257	.stop = sctp_eps_seq_stop,
	258	.show = sctp_eps_seq_show,
	259	};
	260
	261
1da177e4 LT	262	/* Initialize the seq file operations for 'eps' object. */
	263	static int sctp_eps_seq_open(struct inode inode, struct file file)
	264	{
bca735bd	265	return seq_open(file, &sctp_eps_ops);
1da177e4 LT	266	}
1da177e4 LT	267
da7071d7	268	static const struct file_operations sctp_eps_seq_fops = {
1da177e4 LT	269	.open = sctp_eps_seq_open,
	270	.read = seq_read,
	271	.llseek = seq_lseek,
bca735bd	272	.release = seq_release,
1da177e4 LT	273	};
	274
	275	/* Set up the proc fs entry for 'eps' object. */
	276	int __init sctp_eps_proc_init(void)
	277	{
	278	struct proc_dir_entry *p;
	279
	280	p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
	281	if (!p)
	282	return -ENOMEM;
	283
	284	p->proc_fops = &sctp_eps_seq_fops;
	285
	286	return 0;
	287	}
	288
	289	/* Cleanup the proc fs entry for 'eps' object. */
	290	void sctp_eps_proc_exit(void)
	291	{
	292	remove_proc_entry("eps", proc_net_sctp);
	293	}
	294
bca735bd VY	295
	296	static void * sctp_assocs_seq_start(struct seq_file seq, loff_t pos)
	297	{
49392e5e	298	if (*pos >= sctp_assoc_hashsize)
bca735bd VY	299	return NULL;
	300
	301	if (*pos < 0)
	302	*pos = 0;
	303
	304	if (*pos == 0)
	305	seq_printf(seq, " ASSOC SOCK STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT "
	306	"RPORT LADDRS <-> RADDRS\n");
	307
bca735bd VY	308	return (void *)pos;
	309	}
	310
	311	static void sctp_assocs_seq_stop(struct seq_file seq, void v)
	312	{
	313	return;
	314	}
	315
	316
	317	static void * sctp_assocs_seq_next(struct seq_file seq, void v, loff_t *pos)
	318	{
49392e5e	319	if (++*pos >= sctp_assoc_hashsize)
bca735bd VY	320	return NULL;
bca735bd VY	321
bca735bd VY	322	return pos;
	323	}
	324
1da177e4 LT	325	/* Display sctp associations (/proc/net/sctp/assocs). */
	326	static int sctp_assocs_seq_show(struct seq_file seq, void v)
	327	{
	328	struct sctp_hashbucket *head;
	329	struct sctp_ep_common *epb;
	330	struct sctp_association *assoc;
	331	struct sock *sk;
d970dbf8	332	struct hlist_node *node;
38b0e42a	333	int hash = (loff_t )v;
bca735bd	334
49392e5e	335	if (hash >= sctp_assoc_hashsize)
bca735bd VY	336	return -ENOMEM;
bca735bd VY	337
49392e5e	338	head = &sctp_assoc_hashtable[hash];
bca735bd VY	339	sctp_local_bh_disable();
bca735bd VY	340	read_lock(&head->lock);
d970dbf8	341	sctp_for_each_hentry(epb, node, &head->chain) {
bca735bd VY	342	assoc = sctp_assoc(epb);
	343	sk = epb->sk;
	344	seq_printf(seq,
	345	"%8p %8p %-3d %-3d %-2d %-4d %4d %8d %8d %7d %5lu %-5d %5d ",
	346	assoc, sk, sctp_sk(sk)->type, sk->sk_state,
49392e5e	347	assoc->state, hash, assoc->assoc_id,
bca735bd	348	assoc->sndbuf_used,
6aa2551c	349	atomic_read(&assoc->rmem_alloc),
bca735bd VY	350	sock_i_uid(sk), sock_i_ino(sk),
	351	epb->bind_addr.port,
	352	assoc->peer.port);
	353
	354	seq_printf(seq, " ");
	355	sctp_seq_dump_local_addrs(seq, epb);
	356	seq_printf(seq, "<-> ");
	357	sctp_seq_dump_remote_addrs(seq, assoc);
	358	seq_printf(seq, "\n");
1da177e4	359	}
bca735bd VY	360	read_unlock(&head->lock);
bca735bd VY	361	sctp_local_bh_enable();
1da177e4 LT	362
	363	return 0;
	364	}
	365
56b3d975	366	static const struct seq_operations sctp_assoc_ops = {
bca735bd VY	367	.start = sctp_assocs_seq_start,
	368	.next = sctp_assocs_seq_next,
	369	.stop = sctp_assocs_seq_stop,
	370	.show = sctp_assocs_seq_show,
	371	};
	372
1da177e4 LT	373	/* Initialize the seq file operations for 'assocs' object. */
	374	static int sctp_assocs_seq_open(struct inode inode, struct file file)
	375	{
bca735bd	376	return seq_open(file, &sctp_assoc_ops);
1da177e4 LT	377	}
1da177e4 LT	378
da7071d7	379	static const struct file_operations sctp_assocs_seq_fops = {
1da177e4 LT	380	.open = sctp_assocs_seq_open,
	381	.read = seq_read,
	382	.llseek = seq_lseek,
bca735bd	383	.release = seq_release,
1da177e4 LT	384	};
	385
	386	/* Set up the proc fs entry for 'assocs' object. */
	387	int __init sctp_assocs_proc_init(void)
	388	{
	389	struct proc_dir_entry *p;
	390
	391	p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
	392	if (!p)
	393	return -ENOMEM;
	394
	395	p->proc_fops = &sctp_assocs_seq_fops;
	396
	397	return 0;
	398	}
	399
	400	/* Cleanup the proc fs entry for 'assocs' object. */
	401	void sctp_assocs_proc_exit(void)
	402	{
	403	remove_proc_entry("assocs", proc_net_sctp);
	404	}