[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),
};

/* 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);
}
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),
	60	};
	61
	62	/* Return the current value of a particular entry in the mib by adding its
	63	* per cpu counters.
	64	*/
65	static unsigned long
66	fold_field(void *mib[], int nr)
67	{
68	unsigned long res = 0;
69	int i;
70
71	for (i = 0; i < NR_CPUS; i++) {
72	if (!cpu_possible(i))
73	continue;
74	res +=
75	((unsigned long ) (((void *) per_cpu_ptr(mib[0], i)) +
76	sizeof (unsigned long) * nr));
77	res +=
78	((unsigned long ) (((void *) per_cpu_ptr(mib[1], i)) +
79	sizeof (unsigned long) * nr));
80	}
81	return res;
82	}
83
84	/* Display sctp snmp mib statistics(/proc/net/sctp/snmp). */
85	static int sctp_snmp_seq_show(struct seq_file seq, void v)
86	{
87	int i;
88
89	for (i = 0; sctp_snmp_list[i].name != NULL; i++)
90	seq_printf(seq, "%-32s\t%ld\n", sctp_snmp_list[i].name,
91	fold_field((void **)sctp_statistics,
92	sctp_snmp_list[i].entry));
93
94	return 0;
95	}
96
97	/* Initialize the seq file operations for 'snmp' object. */
98	static int sctp_snmp_seq_open(struct inode inode, struct file file)
99	{
100	return single_open(file, sctp_snmp_seq_show, NULL);
101	}
102
103	static struct file_operations sctp_snmp_seq_fops = {
104	.owner = THIS_MODULE,
105	.open = sctp_snmp_seq_open,
106	.read = seq_read,
107	.llseek = seq_lseek,
108	.release = single_release,
109	};
110
111	/* Set up the proc fs entry for 'snmp' object. */
112	int __init sctp_snmp_proc_init(void)
113	{
114	struct proc_dir_entry *p;
115
116	p = create_proc_entry("snmp", S_IRUGO, proc_net_sctp);
117	if (!p)
118	return -ENOMEM;
119
120	p->proc_fops = &sctp_snmp_seq_fops;
121
122	return 0;
123	}
124
125	/* Cleanup the proc fs entry for 'snmp' object. */
126	void sctp_snmp_proc_exit(void)
127	{
128	remove_proc_entry("snmp", proc_net_sctp);
129	}
130
131	/* Dump local addresses of an association/endpoint. */
132	static void sctp_seq_dump_local_addrs(struct seq_file seq, struct sctp_ep_common epb)
133	{
134	struct list_head *pos;
135	struct sctp_sockaddr_entry *laddr;
136	union sctp_addr *addr;
137	struct sctp_af *af;
138
139	list_for_each(pos, &epb->bind_addr.address_list) {
140	laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
141	addr = (union sctp_addr *)&laddr->a;
142	af = sctp_get_af_specific(addr->sa.sa_family);
143	af->seq_dump_addr(seq, addr);
144	}
145	}
146
147	/* Dump remote addresses of an association. */
148	static void sctp_seq_dump_remote_addrs(struct seq_file seq, struct sctp_association assoc)
149	{
150	struct list_head *pos;
151	struct sctp_transport *transport;
152	union sctp_addr *addr;
153	struct sctp_af *af;
154
155	list_for_each(pos, &assoc->peer.transport_addr_list) {
156	transport = list_entry(pos, struct sctp_transport, transports);
157	addr = (union sctp_addr *)&transport->ipaddr;
158	af = sctp_get_af_specific(addr->sa.sa_family);
159	af->seq_dump_addr(seq, addr);
160	}
161	}
162
163	/* Display sctp endpoints (/proc/net/sctp/eps). */
164	static int sctp_eps_seq_show(struct seq_file seq, void v)
165	{
166	struct sctp_hashbucket *head;
167	struct sctp_ep_common *epb;
168	struct sctp_endpoint *ep;
169	struct sock *sk;
170	int hash;
171
172	seq_printf(seq, " ENDPT SOCK STY SST HBKT LPORT LADDRS\n");
173	for (hash = 0; hash < sctp_ep_hashsize; hash++) {
174	head = &sctp_ep_hashtable[hash];
175	read_lock(&head->lock);
176	for (epb = head->chain; epb; epb = epb->next) {
177	ep = sctp_ep(epb);
178	sk = epb->sk;
179	seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d ", ep, sk,
180	sctp_sk(sk)->type, sk->sk_state, hash,
181	epb->bind_addr.port);
182	sctp_seq_dump_local_addrs(seq, epb);
183	seq_printf(seq, "\n");
184	}
185	read_unlock(&head->lock);
186	}
187
188	return 0;
189	}
190
191	/* Initialize the seq file operations for 'eps' object. */
192	static int sctp_eps_seq_open(struct inode inode, struct file file)
193	{
194	return single_open(file, sctp_eps_seq_show, NULL);
195	}
196
197	static struct file_operations sctp_eps_seq_fops = {
198	.open = sctp_eps_seq_open,
199	.read = seq_read,
200	.llseek = seq_lseek,
201	.release = single_release,
202	};
203
204	/* Set up the proc fs entry for 'eps' object. */
205	int __init sctp_eps_proc_init(void)
206	{
207	struct proc_dir_entry *p;
208
209	p = create_proc_entry("eps", S_IRUGO, proc_net_sctp);
210	if (!p)
211	return -ENOMEM;
212
213	p->proc_fops = &sctp_eps_seq_fops;
214
215	return 0;
216	}
217
218	/* Cleanup the proc fs entry for 'eps' object. */
219	void sctp_eps_proc_exit(void)
220	{
221	remove_proc_entry("eps", proc_net_sctp);
222	}
223
224	/* Display sctp associations (/proc/net/sctp/assocs). */
225	static int sctp_assocs_seq_show(struct seq_file seq, void v)
226	{
227	struct sctp_hashbucket *head;
228	struct sctp_ep_common *epb;
229	struct sctp_association *assoc;
230	struct sock *sk;
231	int hash;
232
233	seq_printf(seq, " ASSOC SOCK STY SST ST HBKT LPORT RPORT "
234	"LADDRS <-> RADDRS\n");
235	for (hash = 0; hash < sctp_assoc_hashsize; hash++) {
236	head = &sctp_assoc_hashtable[hash];
237	read_lock(&head->lock);
238	for (epb = head->chain; epb; epb = epb->next) {
239	assoc = sctp_assoc(epb);
240	sk = epb->sk;
241	seq_printf(seq,
242	"%8p %8p %-3d %-3d %-2d %-4d %-5d %-5d ",
243	assoc, sk, sctp_sk(sk)->type, sk->sk_state,
244	assoc->state, hash, epb->bind_addr.port,
245	assoc->peer.port);
246	sctp_seq_dump_local_addrs(seq, epb);
247	seq_printf(seq, "<-> ");
248	sctp_seq_dump_remote_addrs(seq, assoc);
249	seq_printf(seq, "\n");
250	}
251	read_unlock(&head->lock);
252	}
253
254	return 0;
255	}
256
257	/* Initialize the seq file operations for 'assocs' object. */
258	static int sctp_assocs_seq_open(struct inode inode, struct file file)
259	{
260	return single_open(file, sctp_assocs_seq_show, NULL);
261	}
262
263	static struct file_operations sctp_assocs_seq_fops = {
264	.open = sctp_assocs_seq_open,
265	.read = seq_read,
266	.llseek = seq_lseek,
267	.release = single_release,
268	};
269
270	/* Set up the proc fs entry for 'assocs' object. */
271	int __init sctp_assocs_proc_init(void)
272	{
273	struct proc_dir_entry *p;
274
275	p = create_proc_entry("assocs", S_IRUGO, proc_net_sctp);
276	if (!p)
277	return -ENOMEM;
278
279	p->proc_fops = &sctp_assocs_seq_fops;
280
281	return 0;
282	}
283
284	/* Cleanup the proc fs entry for 'assocs' object. */
285	void sctp_assocs_proc_exit(void)
286	{
287	remove_proc_entry("assocs", proc_net_sctp);
288	}