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1/*
2 * Scatterlist Cryptographic API.
3 *
4 * Procfs information.
5 *
6 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
7 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
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 */
15
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>
23#include "internal.h"
24
25static void *c_start(struct seq_file *m, loff_t *pos)
26{
27 down_read(&crypto_alg_sem);
28 return seq_list_start(&crypto_alg_list, *pos);
29}
30
31static void *c_next(struct seq_file *m, void *p, loff_t *pos)
32{
33 return seq_list_next(p, &crypto_alg_list, pos);
34}
35
36static void c_stop(struct seq_file *m, void *p)
37{
38 up_read(&crypto_alg_sem);
39}
40
41static int c_show(struct seq_file *m, void *p)
42{
43 struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
44
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 : %u\n", refcount_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) ?
55 "yes" : "no");
56
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);
60 goto out;
61 }
62
63 if (alg->cra_type && alg->cra_type->show) {
64 alg->cra_type->show(m, alg);
65 goto out;
66 }
67
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);
76 break;
77 case CRYPTO_ALG_TYPE_COMPRESS:
78 seq_printf(m, "type : compression\n");
79 break;
80 default:
81 seq_printf(m, "type : unknown\n");
82 break;
83 }
84
85out:
86 seq_putc(m, '\n');
87 return 0;
88}
89
90static const struct seq_operations crypto_seq_ops = {
91 .start = c_start,
92 .next = c_next,
93 .stop = c_stop,
94 .show = c_show
95};
96
97static int crypto_info_open(struct inode *inode, struct file *file)
98{
99 return seq_open(file, &crypto_seq_ops);
100}
101
102static const struct file_operations proc_crypto_ops = {
103 .open = crypto_info_open,
104 .read = seq_read,
105 .llseek = seq_lseek,
106 .release = seq_release
107};
108
109void __init crypto_init_proc(void)
110{
111 proc_create("crypto", 0, NULL, &proc_crypto_ops);
112}
113
114void __exit crypto_exit_proc(void)
115{
116 remove_proc_entry("crypto", NULL);
117}
1/*
2 * Scatterlist Cryptographic API.
3 *
4 * Procfs information.
5 *
6 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
7 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
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 */
15
16#include <linux/atomic.h>
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 <linux/sysctl.h>
23#include "internal.h"
24
25#ifdef CONFIG_CRYPTO_FIPS
26static struct ctl_table crypto_sysctl_table[] = {
27 {
28 .procname = "fips_enabled",
29 .data = &fips_enabled,
30 .maxlen = sizeof(int),
31 .mode = 0444,
32 .proc_handler = proc_dointvec
33 },
34 {}
35};
36
37static struct ctl_table crypto_dir_table[] = {
38 {
39 .procname = "crypto",
40 .mode = 0555,
41 .child = crypto_sysctl_table
42 },
43 {}
44};
45
46static struct ctl_table_header *crypto_sysctls;
47
48static void crypto_proc_fips_init(void)
49{
50 crypto_sysctls = register_sysctl_table(crypto_dir_table);
51}
52
53static void crypto_proc_fips_exit(void)
54{
55 if (crypto_sysctls)
56 unregister_sysctl_table(crypto_sysctls);
57}
58#else
59#define crypto_proc_fips_init()
60#define crypto_proc_fips_exit()
61#endif
62
63static void *c_start(struct seq_file *m, loff_t *pos)
64{
65 down_read(&crypto_alg_sem);
66 return seq_list_start(&crypto_alg_list, *pos);
67}
68
69static void *c_next(struct seq_file *m, void *p, loff_t *pos)
70{
71 return seq_list_next(p, &crypto_alg_list, pos);
72}
73
74static void c_stop(struct seq_file *m, void *p)
75{
76 up_read(&crypto_alg_sem);
77}
78
79static int c_show(struct seq_file *m, void *p)
80{
81 struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
82
83 seq_printf(m, "name : %s\n", alg->cra_name);
84 seq_printf(m, "driver : %s\n", alg->cra_driver_name);
85 seq_printf(m, "module : %s\n", module_name(alg->cra_module));
86 seq_printf(m, "priority : %d\n", alg->cra_priority);
87 seq_printf(m, "refcnt : %d\n", atomic_read(&alg->cra_refcnt));
88 seq_printf(m, "selftest : %s\n",
89 (alg->cra_flags & CRYPTO_ALG_TESTED) ?
90 "passed" : "unknown");
91
92 if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
93 seq_printf(m, "type : larval\n");
94 seq_printf(m, "flags : 0x%x\n", alg->cra_flags);
95 goto out;
96 }
97
98 if (alg->cra_type && alg->cra_type->show) {
99 alg->cra_type->show(m, alg);
100 goto out;
101 }
102
103 switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
104 case CRYPTO_ALG_TYPE_CIPHER:
105 seq_printf(m, "type : cipher\n");
106 seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
107 seq_printf(m, "min keysize : %u\n",
108 alg->cra_cipher.cia_min_keysize);
109 seq_printf(m, "max keysize : %u\n",
110 alg->cra_cipher.cia_max_keysize);
111 break;
112 case CRYPTO_ALG_TYPE_COMPRESS:
113 seq_printf(m, "type : compression\n");
114 break;
115 default:
116 seq_printf(m, "type : unknown\n");
117 break;
118 }
119
120out:
121 seq_putc(m, '\n');
122 return 0;
123}
124
125static const struct seq_operations crypto_seq_ops = {
126 .start = c_start,
127 .next = c_next,
128 .stop = c_stop,
129 .show = c_show
130};
131
132static int crypto_info_open(struct inode *inode, struct file *file)
133{
134 return seq_open(file, &crypto_seq_ops);
135}
136
137static const struct file_operations proc_crypto_ops = {
138 .open = crypto_info_open,
139 .read = seq_read,
140 .llseek = seq_lseek,
141 .release = seq_release
142};
143
144void __init crypto_init_proc(void)
145{
146 proc_create("crypto", 0, NULL, &proc_crypto_ops);
147 crypto_proc_fips_init();
148}
149
150void __exit crypto_exit_proc(void)
151{
152 crypto_proc_fips_exit();
153 remove_proc_entry("crypto", NULL);
154}