^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Synchronous Compression operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2015 LG Electronics Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2016, Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #ifndef _CRYPTO_SCOMP_INT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define _CRYPTO_SCOMP_INT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define SCOMP_SCRATCH_SIZE 131072
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct crypto_scomp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct crypto_tfm base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * struct scomp_alg - synchronous compression algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * @alloc_ctx: Function allocates algorithm specific context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * @free_ctx: Function frees context allocated with alloc_ctx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * @compress: Function performs a compress operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * @decompress: Function performs a de-compress operation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * @base: Common crypto API algorithm data structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct scomp_alg {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) void *(*alloc_ctx)(struct crypto_scomp *tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) void (*free_ctx)(struct crypto_scomp *tfm, void *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int (*compress)(struct crypto_scomp *tfm, const u8 *src,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) unsigned int slen, u8 *dst, unsigned int *dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) void *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int (*decompress)(struct crypto_scomp *tfm, const u8 *src,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) unsigned int slen, u8 *dst, unsigned int *dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) void *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct crypto_alg base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static inline struct scomp_alg *__crypto_scomp_alg(struct crypto_alg *alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return container_of(alg, struct scomp_alg, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static inline struct crypto_scomp *__crypto_scomp_tfm(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return container_of(tfm, struct crypto_scomp, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static inline struct crypto_tfm *crypto_scomp_tfm(struct crypto_scomp *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return &tfm->base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static inline void crypto_free_scomp(struct crypto_scomp *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) crypto_destroy_tfm(tfm, crypto_scomp_tfm(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static inline struct scomp_alg *crypto_scomp_alg(struct crypto_scomp *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return __crypto_scomp_alg(crypto_scomp_tfm(tfm)->__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static inline void *crypto_scomp_alloc_ctx(struct crypto_scomp *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) return crypto_scomp_alg(tfm)->alloc_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static inline void crypto_scomp_free_ctx(struct crypto_scomp *tfm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return crypto_scomp_alg(tfm)->free_ctx(tfm, ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static inline int crypto_scomp_compress(struct crypto_scomp *tfm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) const u8 *src, unsigned int slen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) u8 *dst, unsigned int *dlen, void *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) return crypto_scomp_alg(tfm)->compress(tfm, src, slen, dst, dlen, ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static inline int crypto_scomp_decompress(struct crypto_scomp *tfm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) const u8 *src, unsigned int slen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) u8 *dst, unsigned int *dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) void *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return crypto_scomp_alg(tfm)->decompress(tfm, src, slen, dst, dlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int crypto_init_scomp_ops_async(struct crypto_tfm *tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct acomp_req *crypto_acomp_scomp_alloc_ctx(struct acomp_req *req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) void crypto_acomp_scomp_free_ctx(struct acomp_req *req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * crypto_register_scomp() -- Register synchronous compression algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * Function registers an implementation of a synchronous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * compression algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * @alg: algorithm definition
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * Return: zero on success; error code in case of error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) int crypto_register_scomp(struct scomp_alg *alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * crypto_unregister_scomp() -- Unregister synchronous compression algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * Function unregisters an implementation of a synchronous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * compression algorithm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * @alg: algorithm definition
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) void crypto_unregister_scomp(struct scomp_alg *alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int crypto_register_scomps(struct scomp_alg *algs, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) void crypto_unregister_scomps(struct scomp_alg *algs, int count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags