2 * Scatterlist Cryptographic API.
6 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
7 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
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)
16 #include <linux/atomic.h>
17 #include <linux/init.h>
18 #include <linux/crypto.h>
19 #include <linux/module.h> /* for module_name() */
20 #include <linux/rwsem.h>
21 #include <linux/proc_fs.h>
22 #include <linux/seq_file.h>
25 static void *c_start(struct seq_file
*m
, loff_t
*pos
)
27 down_read(&crypto_alg_sem
);
28 return seq_list_start(&crypto_alg_list
, *pos
);
31 static void *c_next(struct seq_file
*m
, void *p
, loff_t
*pos
)
33 return seq_list_next(p
, &crypto_alg_list
, pos
);
36 static void c_stop(struct seq_file
*m
, void *p
)
38 up_read(&crypto_alg_sem
);
41 static int c_show(struct seq_file
*m
, void *p
)
43 struct crypto_alg
*alg
= list_entry(p
, struct crypto_alg
, cra_list
);
45 seq_printf(m
, "name : %s\n", alg
->cra_name
);
46 seq_printf(m
, "driver : %s\n", alg
->cra_driver_name
);
47 seq_printf(m
, "module : %s\n", module_name(alg
->cra_module
));
48 seq_printf(m
, "priority : %d\n", alg
->cra_priority
);
49 seq_printf(m
, "refcnt : %d\n", atomic_read(&alg
->cra_refcnt
));
50 seq_printf(m
, "selftest : %s\n",
51 (alg
->cra_flags
& CRYPTO_ALG_TESTED
) ?
52 "passed" : "unknown");
53 seq_printf(m
, "internal : %s\n",
54 (alg
->cra_flags
& CRYPTO_ALG_INTERNAL
) ?
57 if (alg
->cra_flags
& CRYPTO_ALG_LARVAL
) {
58 seq_printf(m
, "type : larval\n");
59 seq_printf(m
, "flags : 0x%x\n", alg
->cra_flags
);
63 if (alg
->cra_type
&& alg
->cra_type
->show
) {
64 alg
->cra_type
->show(m
, alg
);
68 switch (alg
->cra_flags
& (CRYPTO_ALG_TYPE_MASK
| CRYPTO_ALG_LARVAL
)) {
69 case CRYPTO_ALG_TYPE_CIPHER
:
70 seq_printf(m
, "type : cipher\n");
71 seq_printf(m
, "blocksize : %u\n", alg
->cra_blocksize
);
72 seq_printf(m
, "min keysize : %u\n",
73 alg
->cra_cipher
.cia_min_keysize
);
74 seq_printf(m
, "max keysize : %u\n",
75 alg
->cra_cipher
.cia_max_keysize
);
77 case CRYPTO_ALG_TYPE_COMPRESS
:
78 seq_printf(m
, "type : compression\n");
81 seq_printf(m
, "type : unknown\n");
90 static const struct seq_operations crypto_seq_ops
= {
97 static int crypto_info_open(struct inode
*inode
, struct file
*file
)
99 return seq_open(file
, &crypto_seq_ops
);
102 static const struct file_operations proc_crypto_ops
= {
103 .open
= crypto_info_open
,
106 .release
= seq_release
109 void __init
crypto_init_proc(void)
111 proc_create("crypto", 0, NULL
, &proc_crypto_ops
);
114 void __exit
crypto_exit_proc(void)
116 remove_proc_entry("crypto", NULL
);