[net-next-2.6.git] / crypto / proc.c

/*
 * Scatterlist Cryptographic API.
 *
 * Procfs information.
 *
 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
 *
 * This program 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.
 *
 */

#include <asm/atomic.h>
#include <linux/init.h>
#include <linux/crypto.h>
#include <linux/rwsem.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include "internal.h"

static void *c_start(struct seq_file *m, loff_t *pos)
{
	down_read(&crypto_alg_sem);
	return seq_list_start(&crypto_alg_list, *pos);
}

static void *c_next(struct seq_file *m, void *p, loff_t *pos)
{
	return seq_list_next(p, &crypto_alg_list, pos);
}

static void c_stop(struct seq_file *m, void *p)
{
	up_read(&crypto_alg_sem);
}

static int c_show(struct seq_file *m, void *p)
{
	struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
	
	seq_printf(m, "name         : %s\n", alg->cra_name);
	seq_printf(m, "driver       : %s\n", alg->cra_driver_name);
	seq_printf(m, "module       : %s\n", module_name(alg->cra_module));
	seq_printf(m, "priority     : %d\n", alg->cra_priority);
	seq_printf(m, "refcnt       : %d\n", atomic_read(&alg->cra_refcnt));
	
	switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
	case CRYPTO_ALG_TYPE_CIPHER:
		seq_printf(m, "type         : cipher\n");
		seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
		seq_printf(m, "min keysize  : %u\n",
					alg->cra_cipher.cia_min_keysize);
		seq_printf(m, "max keysize  : %u\n",
					alg->cra_cipher.cia_max_keysize);
		break;
		
	case CRYPTO_ALG_TYPE_DIGEST:
		seq_printf(m, "type         : digest\n");
		seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
		seq_printf(m, "digestsize   : %u\n",
		           alg->cra_digest.dia_digestsize);
		break;
	case CRYPTO_ALG_TYPE_COMPRESS:
		seq_printf(m, "type         : compression\n");
		break;
	default:
		if (alg->cra_type && alg->cra_type->show)
			alg->cra_type->show(m, alg);
		else
			seq_printf(m, "type         : unknown\n");
		break;
	}

	seq_putc(m, '\n');
	return 0;
}

static struct seq_operations crypto_seq_ops = {
	.start		= c_start,
	.next		= c_next,
	.stop		= c_stop,
	.show		= c_show
};

static int crypto_info_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &crypto_seq_ops);
}
        
static const struct file_operations proc_crypto_ops = {
	.open		= crypto_info_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= seq_release
};

void __init crypto_init_proc(void)
{
	struct proc_dir_entry *proc;
	
	proc = create_proc_entry("crypto", 0, NULL);
	if (proc)
		proc->proc_fops = &proc_crypto_ops;
}

void __exit crypto_exit_proc(void)
{
	remove_proc_entry("crypto", NULL);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Scatterlist Cryptographic API.
	3	*
	4	* Procfs information.
	5	*
	6	* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
5cb1454b	7	* Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
1da177e4 LT	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public License as published by the Free
	11	* Software Foundation; either version 2 of the License, or (at your option)
	12	* any later version.
	13	*
	14	*/
6521f302 HX	15
6521f302 HX	16	#include <asm/atomic.h>
1da177e4 LT	17	#include <linux/init.h>
	18	#include <linux/crypto.h>
	19	#include <linux/rwsem.h>
	20	#include <linux/proc_fs.h>
	21	#include <linux/seq_file.h>
	22	#include "internal.h"
	23
1da177e4 LT	24	static void c_start(struct seq_file m, loff_t *pos)
1da177e4 LT	25	{
1da177e4	26	down_read(&crypto_alg_sem);
13d31894	27	return seq_list_start(&crypto_alg_list, *pos);
1da177e4 LT	28	}
	29
	30	static void c_next(struct seq_file m, void p, loff_t pos)
	31	{
13d31894	32	return seq_list_next(p, &crypto_alg_list, pos);
1da177e4 LT	33	}
	34
	35	static void c_stop(struct seq_file m, void p)
	36	{
	37	up_read(&crypto_alg_sem);
	38	}
	39
	40	static int c_show(struct seq_file m, void p)
	41	{
13d31894	42	struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
1da177e4 LT	43
1da177e4 LT	44	seq_printf(m, "name : %s\n", alg->cra_name);
5cb1454b	45	seq_printf(m, "driver : %s\n", alg->cra_driver_name);
1da177e4	46	seq_printf(m, "module : %s\n", module_name(alg->cra_module));
5cb1454b	47	seq_printf(m, "priority : %d\n", alg->cra_priority);
6521f302	48	seq_printf(m, "refcnt : %d\n", atomic_read(&alg->cra_refcnt));
1da177e4 LT	49
	50	switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
	51	case CRYPTO_ALG_TYPE_CIPHER:
	52	seq_printf(m, "type : cipher\n");
	53	seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
	54	seq_printf(m, "min keysize : %u\n",
	55	alg->cra_cipher.cia_min_keysize);
	56	seq_printf(m, "max keysize : %u\n",
	57	alg->cra_cipher.cia_max_keysize);
	58	break;
	59
	60	case CRYPTO_ALG_TYPE_DIGEST:
	61	seq_printf(m, "type : digest\n");
	62	seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
	63	seq_printf(m, "digestsize : %u\n",
	64	alg->cra_digest.dia_digestsize);
	65	break;
	66	case CRYPTO_ALG_TYPE_COMPRESS:
	67	seq_printf(m, "type : compression\n");
	68	break;
	69	default:
e853c3cf HX	70	if (alg->cra_type && alg->cra_type->show)
	71	alg->cra_type->show(m, alg);
	72	else
	73	seq_printf(m, "type : unknown\n");
1da177e4 LT	74	break;
	75	}
	76
	77	seq_putc(m, '\n');
	78	return 0;
	79	}
	80
	81	static struct seq_operations crypto_seq_ops = {
	82	.start = c_start,
	83	.next = c_next,
	84	.stop = c_stop,
	85	.show = c_show
	86	};
	87
	88	static int crypto_info_open(struct inode inode, struct file file)
	89	{
	90	return seq_open(file, &crypto_seq_ops);
	91	}
	92
2b8693c0	93	static const struct file_operations proc_crypto_ops = {
1da177e4 LT	94	.open = crypto_info_open,
	95	.read = seq_read,
	96	.llseek = seq_lseek,
	97	.release = seq_release
	98	};
	99
	100	void __init crypto_init_proc(void)
	101	{
	102	struct proc_dir_entry *proc;
	103
	104	proc = create_proc_entry("crypto", 0, NULL);
	105	if (proc)
	106	proc->proc_fops = &proc_crypto_ops;
	107	}
cce9e06d HX	108
	109	void __exit crypto_exit_proc(void)
	110	{
	111	remove_proc_entry("crypto", NULL);
	112	}