1 // SPDX-License-Identifier: GPL-2.0-or-later 1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* 2 /*
3 * Scatterlist Cryptographic API. 3 * Scatterlist Cryptographic API.
4 * 4 *
5 * Procfs information. 5 * Procfs information.
6 * 6 *
7 * Copyright (c) 2002 James Morris <jmorris@in 7 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
8 * Copyright (c) 2005 Herbert Xu <herbert@gond 8 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
9 */ 9 */
10 10
11 #include <linux/atomic.h> 11 #include <linux/atomic.h>
12 #include <linux/init.h> 12 #include <linux/init.h>
13 #include <linux/crypto.h> 13 #include <linux/crypto.h>
14 #include <linux/fips.h> <<
15 #include <linux/module.h> /* for module_ 14 #include <linux/module.h> /* for module_name() */
16 #include <linux/rwsem.h> 15 #include <linux/rwsem.h>
17 #include <linux/proc_fs.h> 16 #include <linux/proc_fs.h>
18 #include <linux/seq_file.h> 17 #include <linux/seq_file.h>
19 #include "internal.h" 18 #include "internal.h"
20 19
21 static void *c_start(struct seq_file *m, loff_ 20 static void *c_start(struct seq_file *m, loff_t *pos)
22 { 21 {
23 down_read(&crypto_alg_sem); 22 down_read(&crypto_alg_sem);
24 return seq_list_start(&crypto_alg_list 23 return seq_list_start(&crypto_alg_list, *pos);
25 } 24 }
26 25
27 static void *c_next(struct seq_file *m, void * 26 static void *c_next(struct seq_file *m, void *p, loff_t *pos)
28 { 27 {
29 return seq_list_next(p, &crypto_alg_li 28 return seq_list_next(p, &crypto_alg_list, pos);
30 } 29 }
31 30
32 static void c_stop(struct seq_file *m, void *p 31 static void c_stop(struct seq_file *m, void *p)
33 { 32 {
34 up_read(&crypto_alg_sem); 33 up_read(&crypto_alg_sem);
35 } 34 }
36 35
37 static int c_show(struct seq_file *m, void *p) 36 static int c_show(struct seq_file *m, void *p)
38 { 37 {
39 struct crypto_alg *alg = list_entry(p, 38 struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
40 !! 39
41 seq_printf(m, "name : %s\n", a 40 seq_printf(m, "name : %s\n", alg->cra_name);
42 seq_printf(m, "driver : %s\n", a 41 seq_printf(m, "driver : %s\n", alg->cra_driver_name);
43 seq_printf(m, "module : %s\n", m 42 seq_printf(m, "module : %s\n", module_name(alg->cra_module));
44 seq_printf(m, "priority : %d\n", a 43 seq_printf(m, "priority : %d\n", alg->cra_priority);
45 seq_printf(m, "refcnt : %u\n", r 44 seq_printf(m, "refcnt : %u\n", refcount_read(&alg->cra_refcnt));
46 seq_printf(m, "selftest : %s\n", 45 seq_printf(m, "selftest : %s\n",
47 (alg->cra_flags & CRYPTO_AL 46 (alg->cra_flags & CRYPTO_ALG_TESTED) ?
48 "passed" : "unknown"); 47 "passed" : "unknown");
49 seq_printf(m, "internal : %s\n", 48 seq_printf(m, "internal : %s\n",
50 (alg->cra_flags & CRYPTO_AL 49 (alg->cra_flags & CRYPTO_ALG_INTERNAL) ?
51 "yes" : "no"); 50 "yes" : "no");
52 if (fips_enabled) { <<
53 seq_printf(m, "fips : <<
54 (alg->cra_flags & C <<
55 "no" : "yes"); <<
56 } <<
57 51
58 if (alg->cra_flags & CRYPTO_ALG_LARVAL 52 if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
59 seq_printf(m, "type : 53 seq_printf(m, "type : larval\n");
60 seq_printf(m, "flags : 54 seq_printf(m, "flags : 0x%x\n", alg->cra_flags);
61 goto out; 55 goto out;
62 } 56 }
63 57
64 if (alg->cra_type && alg->cra_type->sh 58 if (alg->cra_type && alg->cra_type->show) {
65 alg->cra_type->show(m, alg); 59 alg->cra_type->show(m, alg);
66 goto out; 60 goto out;
67 } 61 }
68 !! 62
69 switch (alg->cra_flags & CRYPTO_ALG_TY !! 63 switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
70 case CRYPTO_ALG_TYPE_CIPHER: 64 case CRYPTO_ALG_TYPE_CIPHER:
71 seq_printf(m, "type : 65 seq_printf(m, "type : cipher\n");
72 seq_printf(m, "blocksize : 66 seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
73 seq_printf(m, "min keysize : 67 seq_printf(m, "min keysize : %u\n",
74 alg->c 68 alg->cra_cipher.cia_min_keysize);
75 seq_printf(m, "max keysize : 69 seq_printf(m, "max keysize : %u\n",
76 alg->c 70 alg->cra_cipher.cia_max_keysize);
77 break; 71 break;
78 case CRYPTO_ALG_TYPE_COMPRESS: 72 case CRYPTO_ALG_TYPE_COMPRESS:
79 seq_printf(m, "type : 73 seq_printf(m, "type : compression\n");
80 break; 74 break;
81 default: 75 default:
82 seq_printf(m, "type : 76 seq_printf(m, "type : unknown\n");
83 break; 77 break;
84 } 78 }
85 79
86 out: 80 out:
87 seq_putc(m, '\n'); 81 seq_putc(m, '\n');
88 return 0; 82 return 0;
89 } 83 }
90 84
91 static const struct seq_operations crypto_seq_ 85 static const struct seq_operations crypto_seq_ops = {
92 .start = c_start, 86 .start = c_start,
93 .next = c_next, 87 .next = c_next,
94 .stop = c_stop, 88 .stop = c_stop,
95 .show = c_show 89 .show = c_show
96 }; 90 };
97 91
98 void __init crypto_init_proc(void) 92 void __init crypto_init_proc(void)
99 { 93 {
100 proc_create_seq("crypto", 0, NULL, &cr 94 proc_create_seq("crypto", 0, NULL, &crypto_seq_ops);
101 } 95 }
102 96
103 void __exit crypto_exit_proc(void) 97 void __exit crypto_exit_proc(void)
104 { 98 {
105 remove_proc_entry("crypto", NULL); 99 remove_proc_entry("crypto", NULL);
106 } 100 }
107 101
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TOMOYO® is a registered trademark of NTT DATA CORPORATION.