net/sctp/proc.c - kernel/msm - Gitiles

 /* 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),
 };

 /* 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 (i = 0; i < NR_CPUS; i++) {
 		if (!cpu_possible(i))
 			continue;
 		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_sockaddr_entry *laddr;
 	union sctp_addr *addr;
 	struct sctp_af *af;

 	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);
 		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;
 	struct sctp_af *af;

 	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);
 		af->seq_dump_addr(seq, addr);
 	}
 }

 /* 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;

 	seq_printf(seq, " ENDPT     SOCK   STY SST HBKT LPORT LADDRS\n");
 	for (hash = 0; hash < sctp_ep_hashsize; hash++) {
 		head = &sctp_ep_hashtable[hash];
 		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 ", ep, sk,
 				   sctp_sk(sk)->type, sk->sk_state, hash,
 				   epb->bind_addr.port);
 			sctp_seq_dump_local_addrs(seq, epb);
 			seq_printf(seq, "\n");
 		}
 		read_unlock(&head->lock);
 	}

 	return 0;
 }

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

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

 /* 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;

 	seq_printf(seq, " ASSOC     SOCK   STY SST ST HBKT LPORT RPORT "
 			"LADDRS <-> RADDRS\n");
 	for (hash = 0; hash < sctp_assoc_hashsize; hash++) {
 		head = &sctp_assoc_hashtable[hash];
 		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 %-5d %-5d ",
 				   assoc, sk, sctp_sk(sk)->type, sk->sk_state,
 				   assoc->state, hash, epb->bind_addr.port,
 				   assoc->peer.port);
 			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);
 	}

 	return 0;
 }

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

 static struct file_operations sctp_assocs_seq_fops = {
 	.open	 = sctp_assocs_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,
 	.release = single_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);
 }
	/* 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),
	};

	/* 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 (i = 0; i < NR_CPUS; i++) {
	if (!cpu_possible(i))
	continue;
	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_sockaddr_entry *laddr;
	union sctp_addr *addr;
	struct sctp_af *af;

	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);
	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;
	struct sctp_af *af;

	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);
	af->seq_dump_addr(seq, addr);
	}
	}

	/* 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;

	seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT LADDRS\n");
	for (hash = 0; hash < sctp_ep_hashsize; hash++) {
	head = &sctp_ep_hashtable[hash];
	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 ", ep, sk,
	sctp_sk(sk)->type, sk->sk_state, hash,
	epb->bind_addr.port);
	sctp_seq_dump_local_addrs(seq, epb);
	seq_printf(seq, "\n");
	}
	read_unlock(&head->lock);
	}

	return 0;
	}

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

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

	/* 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;

	seq_printf(seq, " ASSOC SOCK STY SST ST HBKT LPORT RPORT "
	"LADDRS <-> RADDRS\n");
	for (hash = 0; hash < sctp_assoc_hashsize; hash++) {
	head = &sctp_assoc_hashtable[hash];
	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 %-5d %-5d ",
	assoc, sk, sctp_sk(sk)->type, sk->sk_state,
	assoc->state, hash, epb->bind_addr.port,
	assoc->peer.port);
	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);
	}

	return 0;
	}

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

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