Merge tag 'ras_core_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-block.git] / crypto / proc.c
CommitLineData
2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4
LT
2/*
3 * Scatterlist Cryptographic API.
4 *
5 * Procfs information.
6 *
7 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
5cb1454b 8 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
1da177e4 9 */
6521f302 10
60063497 11#include <linux/atomic.h>
1da177e4
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12#include <linux/init.h>
13#include <linux/crypto.h>
4bb33cc8 14#include <linux/module.h> /* for module_name() */
1da177e4
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15#include <linux/rwsem.h>
16#include <linux/proc_fs.h>
17#include <linux/seq_file.h>
18#include "internal.h"
19
1da177e4
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20static void *c_start(struct seq_file *m, loff_t *pos)
21{
1da177e4 22 down_read(&crypto_alg_sem);
13d31894 23 return seq_list_start(&crypto_alg_list, *pos);
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24}
25
26static void *c_next(struct seq_file *m, void *p, loff_t *pos)
27{
13d31894 28 return seq_list_next(p, &crypto_alg_list, pos);
1da177e4
LT
29}
30
31static void c_stop(struct seq_file *m, void *p)
32{
33 up_read(&crypto_alg_sem);
34}
35
36static int c_show(struct seq_file *m, void *p)
37{
13d31894 38 struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
fde2f57c 39
1da177e4 40 seq_printf(m, "name : %s\n", alg->cra_name);
5cb1454b 41 seq_printf(m, "driver : %s\n", alg->cra_driver_name);
1da177e4 42 seq_printf(m, "module : %s\n", module_name(alg->cra_module));
5cb1454b 43 seq_printf(m, "priority : %d\n", alg->cra_priority);
ce8614a3 44 seq_printf(m, "refcnt : %u\n", refcount_read(&alg->cra_refcnt));
73d3864a
HX
45 seq_printf(m, "selftest : %s\n",
46 (alg->cra_flags & CRYPTO_ALG_TESTED) ?
47 "passed" : "unknown");
b0cda2ba
SM
48 seq_printf(m, "internal : %s\n",
49 (alg->cra_flags & CRYPTO_ALG_INTERNAL) ?
50 "yes" : "no");
67cd080c
HX
51
52 if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
53 seq_printf(m, "type : larval\n");
54 seq_printf(m, "flags : 0x%x\n", alg->cra_flags);
55 goto out;
56 }
57
58 if (alg->cra_type && alg->cra_type->show) {
59 alg->cra_type->show(m, alg);
60 goto out;
61 }
fde2f57c 62
7f1cfe41 63 switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
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64 case CRYPTO_ALG_TYPE_CIPHER:
65 seq_printf(m, "type : cipher\n");
66 seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
67 seq_printf(m, "min keysize : %u\n",
68 alg->cra_cipher.cia_min_keysize);
69 seq_printf(m, "max keysize : %u\n",
70 alg->cra_cipher.cia_max_keysize);
71 break;
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72 case CRYPTO_ALG_TYPE_COMPRESS:
73 seq_printf(m, "type : compression\n");
74 break;
75 default:
67cd080c 76 seq_printf(m, "type : unknown\n");
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77 break;
78 }
79
67cd080c 80out:
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81 seq_putc(m, '\n');
82 return 0;
83}
84
48c8949e 85static const struct seq_operations crypto_seq_ops = {
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86 .start = c_start,
87 .next = c_next,
88 .stop = c_stop,
89 .show = c_show
90};
91
1da177e4
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92void __init crypto_init_proc(void)
93{
fddda2b7 94 proc_create_seq("crypto", 0, NULL, &crypto_seq_ops);
1da177e4 95}
cce9e06d
HX
96
97void __exit crypto_exit_proc(void)
98{
99 remove_proc_entry("crypto", NULL);
100}