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-rw-r--r--crypto/Kconfig4
-rw-r--r--crypto/Makefile2
-rw-r--r--crypto/pcompress.c97
-rw-r--r--include/crypto/compress.h125
-rw-r--r--include/crypto/internal/compress.h28
-rw-r--r--include/linux/crypto.h1
6 files changed, 257 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 4a3e6b225189..1676f171c54b 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -76,6 +76,10 @@ config CRYPTO_RNG2
76 tristate 76 tristate
77 select CRYPTO_ALGAPI2 77 select CRYPTO_ALGAPI2
78 78
79config CRYPTO_PCOMP
80 tristate
81 select CRYPTO_ALGAPI2
82
79config CRYPTO_MANAGER 83config CRYPTO_MANAGER
80 tristate "Cryptographic algorithm manager" 84 tristate "Cryptographic algorithm manager"
81 select CRYPTO_MANAGER2 85 select CRYPTO_MANAGER2
diff --git a/crypto/Makefile b/crypto/Makefile
index e05a844e08d5..1132a678b253 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -27,6 +27,8 @@ crypto_hash-objs += ahash.o
27crypto_hash-objs += shash.o 27crypto_hash-objs += shash.o
28obj-$(CONFIG_CRYPTO_HASH2) += crypto_hash.o 28obj-$(CONFIG_CRYPTO_HASH2) += crypto_hash.o
29 29
30obj-$(CONFIG_CRYPTO_PCOMP) += pcompress.o
31
30cryptomgr-objs := algboss.o testmgr.o 32cryptomgr-objs := algboss.o testmgr.o
31 33
32obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o 34obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
diff --git a/crypto/pcompress.c b/crypto/pcompress.c
new file mode 100644
index 000000000000..ca9a4af91efe
--- /dev/null
+++ b/crypto/pcompress.c
@@ -0,0 +1,97 @@
1/*
2 * Cryptographic API.
3 *
4 * Partial (de)compression operations.
5 *
6 * Copyright 2008 Sony Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program.
19 * If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#include <linux/crypto.h>
23#include <linux/errno.h>
24#include <linux/module.h>
25#include <linux/seq_file.h>
26#include <linux/string.h>
27
28#include <crypto/compress.h>
29
30#include "internal.h"
31
32
33static int crypto_pcomp_init(struct crypto_tfm *tfm, u32 type, u32 mask)
34{
35 return 0;
36}
37
38static unsigned int crypto_pcomp_extsize(struct crypto_alg *alg,
39 const struct crypto_type *frontend)
40{
41 return alg->cra_ctxsize;
42}
43
44static int crypto_pcomp_init_tfm(struct crypto_tfm *tfm,
45 const struct crypto_type *frontend)
46{
47 return 0;
48}
49
50static void crypto_pcomp_show(struct seq_file *m, struct crypto_alg *alg)
51 __attribute__ ((unused));
52static void crypto_pcomp_show(struct seq_file *m, struct crypto_alg *alg)
53{
54 seq_printf(m, "type : pcomp\n");
55}
56
57static const struct crypto_type crypto_pcomp_type = {
58 .extsize = crypto_pcomp_extsize,
59 .init = crypto_pcomp_init,
60 .init_tfm = crypto_pcomp_init_tfm,
61#ifdef CONFIG_PROC_FS
62 .show = crypto_pcomp_show,
63#endif
64 .maskclear = ~CRYPTO_ALG_TYPE_MASK,
65 .maskset = CRYPTO_ALG_TYPE_MASK,
66 .type = CRYPTO_ALG_TYPE_PCOMPRESS,
67 .tfmsize = offsetof(struct crypto_pcomp, base),
68};
69
70struct crypto_pcomp *crypto_alloc_pcomp(const char *alg_name, u32 type,
71 u32 mask)
72{
73 return crypto_alloc_tfm(alg_name, &crypto_pcomp_type, type, mask);
74}
75EXPORT_SYMBOL_GPL(crypto_alloc_pcomp);
76
77int crypto_register_pcomp(struct pcomp_alg *alg)
78{
79 struct crypto_alg *base = &alg->base;
80
81 base->cra_type = &crypto_pcomp_type;
82 base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
83 base->cra_flags |= CRYPTO_ALG_TYPE_PCOMPRESS;
84
85 return crypto_register_alg(base);
86}
87EXPORT_SYMBOL_GPL(crypto_register_pcomp);
88
89int crypto_unregister_pcomp(struct pcomp_alg *alg)
90{
91 return crypto_unregister_alg(&alg->base);
92}
93EXPORT_SYMBOL_GPL(crypto_unregister_pcomp);
94
95MODULE_LICENSE("GPL");
96MODULE_DESCRIPTION("Partial (de)compression type");
97MODULE_AUTHOR("Sony Corporation");
diff --git a/include/crypto/compress.h b/include/crypto/compress.h
new file mode 100644
index 000000000000..b7d228708d6b
--- /dev/null
+++ b/include/crypto/compress.h
@@ -0,0 +1,125 @@
1/*
2 * Compress: Compression algorithms under the cryptographic API.
3 *
4 * Copyright 2008 Sony Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program.
17 * If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#ifndef _CRYPTO_COMPRESS_H
21#define _CRYPTO_COMPRESS_H
22
23#include <linux/crypto.h>
24
25
26struct comp_request {
27 const void *next_in; /* next input byte */
28 void *next_out; /* next output byte */
29 unsigned int avail_in; /* bytes available at next_in */
30 unsigned int avail_out; /* bytes available at next_out */
31};
32
33struct crypto_pcomp {
34 struct crypto_tfm base;
35};
36
37struct pcomp_alg {
38 int (*compress_setup)(struct crypto_pcomp *tfm, void *params,
39 unsigned int len);
40 int (*compress_init)(struct crypto_pcomp *tfm);
41 int (*compress_update)(struct crypto_pcomp *tfm,
42 struct comp_request *req);
43 int (*compress_final)(struct crypto_pcomp *tfm,
44 struct comp_request *req);
45 int (*decompress_setup)(struct crypto_pcomp *tfm, void *params,
46 unsigned int len);
47 int (*decompress_init)(struct crypto_pcomp *tfm);
48 int (*decompress_update)(struct crypto_pcomp *tfm,
49 struct comp_request *req);
50 int (*decompress_final)(struct crypto_pcomp *tfm,
51 struct comp_request *req);
52
53 struct crypto_alg base;
54};
55
56extern struct crypto_pcomp *crypto_alloc_pcomp(const char *alg_name, u32 type,
57 u32 mask);
58
59static inline struct crypto_tfm *crypto_pcomp_tfm(struct crypto_pcomp *tfm)
60{
61 return &tfm->base;
62}
63
64static inline void crypto_free_pcomp(struct crypto_pcomp *tfm)
65{
66 crypto_destroy_tfm(tfm, crypto_pcomp_tfm(tfm));
67}
68
69static inline struct pcomp_alg *__crypto_pcomp_alg(struct crypto_alg *alg)
70{
71 return container_of(alg, struct pcomp_alg, base);
72}
73
74static inline struct pcomp_alg *crypto_pcomp_alg(struct crypto_pcomp *tfm)
75{
76 return __crypto_pcomp_alg(crypto_pcomp_tfm(tfm)->__crt_alg);
77}
78
79static inline int crypto_compress_setup(struct crypto_pcomp *tfm,
80 void *params, unsigned int len)
81{
82 return crypto_pcomp_alg(tfm)->compress_setup(tfm, params, len);
83}
84
85static inline int crypto_compress_init(struct crypto_pcomp *tfm)
86{
87 return crypto_pcomp_alg(tfm)->compress_init(tfm);
88}
89
90static inline int crypto_compress_update(struct crypto_pcomp *tfm,
91 struct comp_request *req)
92{
93 return crypto_pcomp_alg(tfm)->compress_update(tfm, req);
94}
95
96static inline int crypto_compress_final(struct crypto_pcomp *tfm,
97 struct comp_request *req)
98{
99 return crypto_pcomp_alg(tfm)->compress_final(tfm, req);
100}
101
102static inline int crypto_decompress_setup(struct crypto_pcomp *tfm,
103 void *params, unsigned int len)
104{
105 return crypto_pcomp_alg(tfm)->decompress_setup(tfm, params, len);
106}
107
108static inline int crypto_decompress_init(struct crypto_pcomp *tfm)
109{
110 return crypto_pcomp_alg(tfm)->decompress_init(tfm);
111}
112
113static inline int crypto_decompress_update(struct crypto_pcomp *tfm,
114 struct comp_request *req)
115{
116 return crypto_pcomp_alg(tfm)->decompress_update(tfm, req);
117}
118
119static inline int crypto_decompress_final(struct crypto_pcomp *tfm,
120 struct comp_request *req)
121{
122 return crypto_pcomp_alg(tfm)->decompress_final(tfm, req);
123}
124
125#endif /* _CRYPTO_COMPRESS_H */
diff --git a/include/crypto/internal/compress.h b/include/crypto/internal/compress.h
new file mode 100644
index 000000000000..178a888d1d93
--- /dev/null
+++ b/include/crypto/internal/compress.h
@@ -0,0 +1,28 @@
1/*
2 * Compress: Compression algorithms under the cryptographic API.
3 *
4 * Copyright 2008 Sony Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program.
17 * If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#ifndef _CRYPTO_INTERNAL_COMPRESS_H
21#define _CRYPTO_INTERNAL_COMPRESS_H
22
23#include <crypto/compress.h>
24
25extern int crypto_register_pcomp(struct pcomp_alg *alg);
26extern int crypto_unregister_pcomp(struct pcomp_alg *alg);
27
28#endif /* _CRYPTO_INTERNAL_COMPRESS_H */
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 29729b834380..ec29fa268b94 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -40,6 +40,7 @@
40#define CRYPTO_ALG_TYPE_SHASH 0x00000009 40#define CRYPTO_ALG_TYPE_SHASH 0x00000009
41#define CRYPTO_ALG_TYPE_AHASH 0x0000000a 41#define CRYPTO_ALG_TYPE_AHASH 0x0000000a
42#define CRYPTO_ALG_TYPE_RNG 0x0000000c 42#define CRYPTO_ALG_TYPE_RNG 0x0000000c
43#define CRYPTO_ALG_TYPE_PCOMPRESS 0x0000000f
43 44
44#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e 45#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
45#define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000c 46#define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000c
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-26 15:45:10 -0500