[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / x25 / x25_proc.c

/*
 *	X.25 Packet Layer release 002
 *
 *	This is ALPHA test software. This code may break your machine,
 *	randomly fail to work with new releases, misbehave and/or generally
 *	screw up. It might even work.
 *
 *	This code REQUIRES 2.4 with seq_file support
 *
 *	This module:
 *		This module 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 of the License, or (at your option) any later version.
 *
 *	History
 *	2002/10/06	Arnaldo Carvalho de Melo  seq_file support
 */

#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/export.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/x25.h>

#ifdef CONFIG_PROC_FS

static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
	__acquires(x25_route_list_lock)
{
	read_lock_bh(&x25_route_list_lock);
	return seq_list_start_head(&x25_route_list, *pos);
}

static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
{
	return seq_list_next(v, &x25_route_list, pos);
}

static void x25_seq_route_stop(struct seq_file *seq, void *v)
	__releases(x25_route_list_lock)
{
	read_unlock_bh(&x25_route_list_lock);
}

static int x25_seq_route_show(struct seq_file *seq, void *v)
{
	struct x25_route *rt = list_entry(v, struct x25_route, node);

	if (v == &x25_route_list) {
		seq_puts(seq, "Address          Digits  Device\n");
		goto out;
	}

	rt = v;
	seq_printf(seq, "%-15s  %-6d  %-5s\n",
		   rt->address.x25_addr, rt->sigdigits,
		   rt->dev ? rt->dev->name : "???");
out:
	return 0;
}

static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
	__acquires(x25_list_lock)
{
	read_lock_bh(&x25_list_lock);
	return seq_hlist_start_head(&x25_list, *pos);
}

static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
{
	return seq_hlist_next(v, &x25_list, pos);
}

static void x25_seq_socket_stop(struct seq_file *seq, void *v)
	__releases(x25_list_lock)
{
	read_unlock_bh(&x25_list_lock);
}

static int x25_seq_socket_show(struct seq_file *seq, void *v)
{
	struct sock *s;
	struct x25_sock *x25;
	struct net_device *dev;
	const char *devname;

	if (v == SEQ_START_TOKEN) {
		seq_printf(seq, "dest_addr  src_addr   dev   lci st vs vr "
				"va   t  t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
		goto out;
	}

	s = sk_entry(v);
	x25 = x25_sk(s);

	if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
		devname = "???";
	else
		devname = x25->neighbour->dev->name;

	seq_printf(seq, "%-10s %-10s %-5s %3.3X  %d  %d  %d  %d %3lu %3lu "
			"%3lu %3lu %3lu %5d %5d %ld\n",
		   !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
		   !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
		   devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
		   x25->va, x25_display_timer(s) / HZ, x25->t2  / HZ,
		   x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
		   sk_wmem_alloc_get(s),
		   sk_rmem_alloc_get(s),
		   s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
out:
	return 0;
}

static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
	__acquires(x25_forward_list_lock)
{
	read_lock_bh(&x25_forward_list_lock);
	return seq_list_start_head(&x25_forward_list, *pos);
}

static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
{
	return seq_list_next(v, &x25_forward_list, pos);
}

static void x25_seq_forward_stop(struct seq_file *seq, void *v)
	__releases(x25_forward_list_lock)
{
	read_unlock_bh(&x25_forward_list_lock);
}

static int x25_seq_forward_show(struct seq_file *seq, void *v)
{
	struct x25_forward *f = list_entry(v, struct x25_forward, node);

	if (v == &x25_forward_list) {
		seq_printf(seq, "lci dev1       dev2\n");
		goto out;
	}

	f = v;

	seq_printf(seq, "%d %-10s %-10s\n",
			f->lci, f->dev1->name, f->dev2->name);
out:
	return 0;
}

static const struct seq_operations x25_seq_route_ops = {
	.start  = x25_seq_route_start,
	.next   = x25_seq_route_next,
	.stop   = x25_seq_route_stop,
	.show   = x25_seq_route_show,
};

static const struct seq_operations x25_seq_socket_ops = {
	.start  = x25_seq_socket_start,
	.next   = x25_seq_socket_next,
	.stop   = x25_seq_socket_stop,
	.show   = x25_seq_socket_show,
};

static const struct seq_operations x25_seq_forward_ops = {
	.start  = x25_seq_forward_start,
	.next   = x25_seq_forward_next,
	.stop   = x25_seq_forward_stop,
	.show   = x25_seq_forward_show,
};

static int x25_seq_socket_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &x25_seq_socket_ops);
}

static int x25_seq_route_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &x25_seq_route_ops);
}

static int x25_seq_forward_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &x25_seq_forward_ops);
}

static const struct file_operations x25_seq_socket_fops = {
	.open		= x25_seq_socket_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= seq_release,
};

static const struct file_operations x25_seq_route_fops = {
	.open		= x25_seq_route_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= seq_release,
};

static const struct file_operations x25_seq_forward_fops = {
	.open		= x25_seq_forward_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= seq_release,
};

int __init x25_proc_init(void)
{
	if (!proc_mkdir("x25", init_net.proc_net))
		return -ENOMEM;

	if (!proc_create("x25/route", S_IRUGO, init_net.proc_net,
			&x25_seq_route_fops))
		goto out;

	if (!proc_create("x25/socket", S_IRUGO, init_net.proc_net,
			&x25_seq_socket_fops))
		goto out;

	if (!proc_create("x25/forward", S_IRUGO, init_net.proc_net,
			&x25_seq_forward_fops))
		goto out;
	return 0;

out:
	remove_proc_subtree("x25", init_net.proc_net);
	return -ENOMEM;
}

void __exit x25_proc_exit(void)
{
	remove_proc_subtree("x25", init_net.proc_net);
}

#else /* CONFIG_PROC_FS */

int __init x25_proc_init(void)
{
	return 0;
}

void __exit x25_proc_exit(void)
{
}
#endif /* CONFIG_PROC_FS */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* X.25 Packet Layer release 002
	3	*
	4	* This is ALPHA test software. This code may break your machine,
	5	* randomly fail to work with new releases, misbehave and/or generally
f8e1d201	6	* screw up. It might even work.
1da177e4 LT	7	*
	8	* This code REQUIRES 2.4 with seq_file support
	9	*
	10	* This module:
	11	* This module is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License
	13	* as published by the Free Software Foundation; either version
	14	* 2 of the License, or (at your option) any later version.
	15	*
	16	* History
	17	* 2002/10/06 Arnaldo Carvalho de Melo seq_file support
	18	*/
	19
1da177e4 LT	20	#include <linux/init.h>
	21	#include <linux/proc_fs.h>
	22	#include <linux/seq_file.h>
bc3b2d7f	23	#include <linux/export.h>
457c4cbc	24	#include <net/net_namespace.h>
1da177e4 LT	25	#include <net/sock.h>
	26	#include <net/x25.h>
	27
	28	#ifdef CONFIG_PROC_FS
1da177e4 LT	29
1da177e4 LT	30	static void x25_seq_route_start(struct seq_file seq, loff_t *pos)
6bf1574e	31	__acquires(x25_route_list_lock)
1da177e4	32	{
1da177e4	33	read_lock_bh(&x25_route_list_lock);
4f134204	34	return seq_list_start_head(&x25_route_list, *pos);
1da177e4 LT	35	}
	36
	37	static void x25_seq_route_next(struct seq_file seq, void v, loff_t pos)
	38	{
4f134204	39	return seq_list_next(v, &x25_route_list, pos);
1da177e4 LT	40	}
	41
	42	static void x25_seq_route_stop(struct seq_file seq, void v)
6bf1574e	43	__releases(x25_route_list_lock)
1da177e4 LT	44	{
	45	read_unlock_bh(&x25_route_list_lock);
	46	}
	47
	48	static int x25_seq_route_show(struct seq_file seq, void v)
	49	{
4f134204	50	struct x25_route *rt = list_entry(v, struct x25_route, node);
1da177e4	51
4f134204	52	if (v == &x25_route_list) {
1da177e4 LT	53	seq_puts(seq, "Address Digits Device\n");
	54	goto out;
	55	}
	56
	57	rt = v;
	58	seq_printf(seq, "%-15s %-6d %-5s\n",
	59	rt->address.x25_addr, rt->sigdigits,
	60	rt->dev ? rt->dev->name : "???");
	61	out:
	62	return 0;
f8e1d201	63	}
1da177e4	64
1da177e4	65	static void x25_seq_socket_start(struct seq_file seq, loff_t *pos)
6bf1574e	66	__acquires(x25_list_lock)
1da177e4	67	{
1da177e4	68	read_lock_bh(&x25_list_lock);
32d2e3a1	69	return seq_hlist_start_head(&x25_list, *pos);
1da177e4 LT	70	}
	71
	72	static void x25_seq_socket_next(struct seq_file seq, void v, loff_t pos)
	73	{
32d2e3a1	74	return seq_hlist_next(v, &x25_list, pos);
1da177e4 LT	75	}
	76
	77	static void x25_seq_socket_stop(struct seq_file seq, void v)
6bf1574e	78	__releases(x25_list_lock)
1da177e4 LT	79	{
	80	read_unlock_bh(&x25_list_lock);
	81	}
	82
	83	static int x25_seq_socket_show(struct seq_file seq, void v)
	84	{
	85	struct sock *s;
	86	struct x25_sock *x25;
	87	struct net_device *dev;
	88	const char *devname;
	89
	90	if (v == SEQ_START_TOKEN) {
	91	seq_printf(seq, "dest_addr src_addr dev lci st vs vr "
	92	"va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
	93	goto out;
	94	}
	95
32d2e3a1	96	s = sk_entry(v);
1da177e4 LT	97	x25 = x25_sk(s);
	98
	99	if (!x25->neighbour \|\| (dev = x25->neighbour->dev) == NULL)
	100	devname = "???";
	101	else
	102	devname = x25->neighbour->dev->name;
	103
	104	seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu "
	105	"%3lu %3lu %3lu %5d %5d %ld\n",
	106	!x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
	107	!x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
	108	devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
	109	x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
	110	x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
31e6d363 ED	111	sk_wmem_alloc_get(s),
31e6d363 ED	112	sk_rmem_alloc_get(s),
1da177e4 LT	113	s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
	114	out:
	115	return 0;
f8e1d201	116	}
1da177e4	117
c9c2e9dc	118	static void x25_seq_forward_start(struct seq_file seq, loff_t *pos)
6bf1574e	119	__acquires(x25_forward_list_lock)
c9c2e9dc	120	{
c9c2e9dc	121	read_lock_bh(&x25_forward_list_lock);
4f134204	122	return seq_list_start_head(&x25_forward_list, *pos);
c9c2e9dc AH	123	}
	124
	125	static void x25_seq_forward_next(struct seq_file seq, void v, loff_t pos)
	126	{
4f134204	127	return seq_list_next(v, &x25_forward_list, pos);
c9c2e9dc AH	128	}
	129
	130	static void x25_seq_forward_stop(struct seq_file seq, void v)
6bf1574e	131	__releases(x25_forward_list_lock)
c9c2e9dc AH	132	{
	133	read_unlock_bh(&x25_forward_list_lock);
	134	}
	135
	136	static int x25_seq_forward_show(struct seq_file seq, void v)
	137	{
4f134204	138	struct x25_forward *f = list_entry(v, struct x25_forward, node);
c9c2e9dc	139
4f134204	140	if (v == &x25_forward_list) {
c9c2e9dc AH	141	seq_printf(seq, "lci dev1 dev2\n");
	142	goto out;
	143	}
	144
	145	f = v;
	146
	147	seq_printf(seq, "%d %-10s %-10s\n",
	148	f->lci, f->dev1->name, f->dev2->name);
c9c2e9dc AH	149	out:
	150	return 0;
	151	}
	152
56b3d975	153	static const struct seq_operations x25_seq_route_ops = {
1da177e4 LT	154	.start = x25_seq_route_start,
	155	.next = x25_seq_route_next,
	156	.stop = x25_seq_route_stop,
	157	.show = x25_seq_route_show,
	158	};
	159
56b3d975	160	static const struct seq_operations x25_seq_socket_ops = {
1da177e4 LT	161	.start = x25_seq_socket_start,
	162	.next = x25_seq_socket_next,
	163	.stop = x25_seq_socket_stop,
	164	.show = x25_seq_socket_show,
	165	};
	166
56b3d975	167	static const struct seq_operations x25_seq_forward_ops = {
c9c2e9dc AH	168	.start = x25_seq_forward_start,
	169	.next = x25_seq_forward_next,
	170	.stop = x25_seq_forward_stop,
	171	.show = x25_seq_forward_show,
	172	};
	173
1da177e4 LT	174	static int x25_seq_socket_open(struct inode inode, struct file file)
	175	{
	176	return seq_open(file, &x25_seq_socket_ops);
	177	}
	178
	179	static int x25_seq_route_open(struct inode inode, struct file file)
	180	{
	181	return seq_open(file, &x25_seq_route_ops);
	182	}
	183
c9c2e9dc AH	184	static int x25_seq_forward_open(struct inode inode, struct file file)
	185	{
	186	return seq_open(file, &x25_seq_forward_ops);
	187	}
	188
da7071d7	189	static const struct file_operations x25_seq_socket_fops = {
1da177e4 LT	190	.open = x25_seq_socket_open,
	191	.read = seq_read,
	192	.llseek = seq_lseek,
	193	.release = seq_release,
	194	};
	195
da7071d7	196	static const struct file_operations x25_seq_route_fops = {
1da177e4 LT	197	.open = x25_seq_route_open,
	198	.read = seq_read,
	199	.llseek = seq_lseek,
	200	.release = seq_release,
	201	};
	202
a1f6f5a7	203	static const struct file_operations x25_seq_forward_fops = {
c9c2e9dc AH	204	.open = x25_seq_forward_open,
	205	.read = seq_read,
	206	.llseek = seq_lseek,
	207	.release = seq_release,
	208	};
	209
1da177e4 LT	210	int __init x25_proc_init(void)
1da177e4 LT	211	{
345566bd AV	212	if (!proc_mkdir("x25", init_net.proc_net))
345566bd AV	213	return -ENOMEM;
1da177e4	214
345566bd AV	215	if (!proc_create("x25/route", S_IRUGO, init_net.proc_net,
345566bd AV	216	&x25_seq_route_fops))
1da177e4 LT	217	goto out;
1da177e4 LT	218
345566bd AV	219	if (!proc_create("x25/socket", S_IRUGO, init_net.proc_net,
	220	&x25_seq_socket_fops))
	221	goto out;
c9c2e9dc	222
345566bd AV	223	if (!proc_create("x25/forward", S_IRUGO, init_net.proc_net,
	224	&x25_seq_forward_fops))
	225	goto out;
	226	return 0;
c9c2e9dc	227
1da177e4	228	out:
345566bd AV	229	remove_proc_subtree("x25", init_net.proc_net);
345566bd AV	230	return -ENOMEM;
1da177e4 LT	231	}
	232
	233	void __exit x25_proc_exit(void)
	234	{
345566bd	235	remove_proc_subtree("x25", init_net.proc_net);
1da177e4 LT	236	}
	237
	238	#else /* CONFIG_PROC_FS */
	239
	240	int __init x25_proc_init(void)
	241	{
	242	return 0;
	243	}
	244
	245	void __exit x25_proc_exit(void)
	246	{
	247	}
	248	#endif /* CONFIG_PROC_FS */