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Source at commit b05a5adf03613de371c77c3235f7d970d7cd0c71 created 13 years 1 month ago. By Lars-Peter Clausen, NAND: Optimize reading the eec data for the JZ4740 (evil hack) | |
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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 <asm/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 |
26 | static 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 | |
37 | static struct ctl_table crypto_dir_table[] = { |
38 | { |
39 | .procname = "crypto", |
40 | .mode = 0555, |
41 | .child = crypto_sysctl_table |
42 | }, |
43 | {} |
44 | }; |
45 | |
46 | static struct ctl_table_header *crypto_sysctls; |
47 | |
48 | static void crypto_proc_fips_init(void) |
49 | { |
50 | crypto_sysctls = register_sysctl_table(crypto_dir_table); |
51 | } |
52 | |
53 | static 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 | |
63 | static 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 | |
69 | static 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 | |
74 | static void c_stop(struct seq_file *m, void *p) |
75 | { |
76 | up_read(&crypto_alg_sem); |
77 | } |
78 | |
79 | static 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 | |
120 | out: |
121 | seq_putc(m, '\n'); |
122 | return 0; |
123 | } |
124 | |
125 | static 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 | |
132 | static int crypto_info_open(struct inode *inode, struct file *file) |
133 | { |
134 | return seq_open(file, &crypto_seq_ops); |
135 | } |
136 | |
137 | static 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 | |
144 | void __init crypto_init_proc(void) |
145 | { |
146 | proc_create("crypto", 0, NULL, &proc_crypto_ops); |
147 | crypto_proc_fips_init(); |
148 | } |
149 | |
150 | void __exit crypto_exit_proc(void) |
151 | { |
152 | crypto_proc_fips_exit(); |
153 | remove_proc_entry("crypto", NULL); |
154 | } |
155 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
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jz-3.0
jz-3.1
jz-3.11
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jz-3.15
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jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9