diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:02:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:02:57 +0200 |
| commit | f541ae326fa120fa5c57433e4d9a133df212ce41 (patch) | |
| tree | bdbd94ec72cfc601118051cb35e8617d55510177 /include/crypto/compress.h | |
| parent | e255357764f92afcafafbd4879b222b8c752065a (diff) | |
| parent | 0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c (diff) | |
Merge branch 'linus' into perfcounters/core-v2
Merge reason: we have gathered quite a few conflicts, need to merge upstream
Conflicts:
arch/powerpc/kernel/Makefile
arch/x86/ia32/ia32entry.S
arch/x86/include/asm/hardirq.h
arch/x86/include/asm/unistd_32.h
arch/x86/include/asm/unistd_64.h
arch/x86/kernel/cpu/common.c
arch/x86/kernel/irq.c
arch/x86/kernel/syscall_table_32.S
arch/x86/mm/iomap_32.c
include/linux/sched.h
kernel/Makefile
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/crypto/compress.h')
| -rw-r--r-- | include/crypto/compress.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/include/crypto/compress.h b/include/crypto/compress.h new file mode 100644 index 000000000000..86163ef24219 --- /dev/null +++ b/include/crypto/compress.h @@ -0,0 +1,145 @@ +/* + * Compress: Compression algorithms under the cryptographic API. + * + * Copyright 2008 Sony Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. + * If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _CRYPTO_COMPRESS_H +#define _CRYPTO_COMPRESS_H + +#include <linux/crypto.h> + + +struct comp_request { + const void *next_in; /* next input byte */ + void *next_out; /* next output byte */ + unsigned int avail_in; /* bytes available at next_in */ + unsigned int avail_out; /* bytes available at next_out */ +}; + +enum zlib_comp_params { + ZLIB_COMP_LEVEL = 1, /* e.g. Z_DEFAULT_COMPRESSION */ + ZLIB_COMP_METHOD, /* e.g. Z_DEFLATED */ + ZLIB_COMP_WINDOWBITS, /* e.g. MAX_WBITS */ + ZLIB_COMP_MEMLEVEL, /* e.g. DEF_MEM_LEVEL */ + ZLIB_COMP_STRATEGY, /* e.g. Z_DEFAULT_STRATEGY */ + __ZLIB_COMP_MAX, +}; + +#define ZLIB_COMP_MAX (__ZLIB_COMP_MAX - 1) + + +enum zlib_decomp_params { + ZLIB_DECOMP_WINDOWBITS = 1, /* e.g. DEF_WBITS */ + __ZLIB_DECOMP_MAX, +}; + +#define ZLIB_DECOMP_MAX (__ZLIB_DECOMP_MAX - 1) + + +struct crypto_pcomp { + struct crypto_tfm base; +}; + +struct pcomp_alg { + int (*compress_setup)(struct crypto_pcomp *tfm, void *params, + unsigned int len); + int (*compress_init)(struct crypto_pcomp *tfm); + int (*compress_update)(struct crypto_pcomp *tfm, + struct comp_request *req); + int (*compress_final)(struct crypto_pcomp *tfm, + struct comp_request *req); + int (*decompress_setup)(struct crypto_pcomp *tfm, void *params, + unsigned int len); + int (*decompress_init)(struct crypto_pcomp *tfm); + int (*decompress_update)(struct crypto_pcomp *tfm, + struct comp_request *req); + int (*decompress_final)(struct crypto_pcomp *tfm, + struct comp_request *req); + + struct crypto_alg base; +}; + +extern struct crypto_pcomp *crypto_alloc_pcomp(const char *alg_name, u32 type, + u32 mask); + +static inline struct crypto_tfm *crypto_pcomp_tfm(struct crypto_pcomp *tfm) +{ + return &tfm->base; +} + +static inline void crypto_free_pcomp(struct crypto_pcomp *tfm) +{ + crypto_destroy_tfm(tfm, crypto_pcomp_tfm(tfm)); +} + +static inline struct pcomp_alg *__crypto_pcomp_alg(struct crypto_alg *alg) +{ + return container_of(alg, struct pcomp_alg, base); +} + +static inline struct pcomp_alg *crypto_pcomp_alg(struct crypto_pcomp *tfm) +{ + return __crypto_pcomp_alg(crypto_pcomp_tfm(tfm)->__crt_alg); +} + +static inline int crypto_compress_setup(struct crypto_pcomp *tfm, + void *params, unsigned int len) +{ + return crypto_pcomp_alg(tfm)->compress_setup(tfm, params, len); +} + +static inline int crypto_compress_init(struct crypto_pcomp *tfm) +{ + return crypto_pcomp_alg(tfm)->compress_init(tfm); +} + +static inline int crypto_compress_update(struct crypto_pcomp *tfm, + struct comp_request *req) +{ + return crypto_pcomp_alg(tfm)->compress_update(tfm, req); +} + +static inline int crypto_compress_final(struct crypto_pcomp *tfm, + struct comp_request *req) +{ + return crypto_pcomp_alg(tfm)->compress_final(tfm, req); +} + +static inline int crypto_decompress_setup(struct crypto_pcomp *tfm, + void *params, unsigned int len) +{ + return crypto_pcomp_alg(tfm)->decompress_setup(tfm, params, len); +} + +static inline int crypto_decompress_init(struct crypto_pcomp *tfm) +{ + return crypto_pcomp_alg(tfm)->decompress_init(tfm); +} + +static inline int crypto_decompress_update(struct crypto_pcomp *tfm, + struct comp_request *req) +{ + return crypto_pcomp_alg(tfm)->decompress_update(tfm, req); +} + +static inline int crypto_decompress_final(struct crypto_pcomp *tfm, + struct comp_request *req) +{ + return crypto_pcomp_alg(tfm)->decompress_final(tfm, req); +} + +#endif /* _CRYPTO_COMPRESS_H */ |
