Blame view
crypto/acompress.c
4.49 KB
2874c5fd2 treewide: Replace... |
1 |
// SPDX-License-Identifier: GPL-2.0-or-later |
2ebda74fd crypto: acomp - a... |
2 3 4 5 6 7 |
/* * Asynchronous Compression operations * * Copyright (c) 2016, Intel Corporation * Authors: Weigang Li <weigang.li@intel.com> * Giovanni Cabiddu <giovanni.cabiddu@intel.com> |
2ebda74fd crypto: acomp - a... |
8 9 10 11 12 13 14 15 16 17 |
*/ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/crypto.h> #include <crypto/algapi.h> #include <linux/cryptouser.h> |
d8c34b949 crypto: Replaced ... |
18 |
#include <linux/compiler.h> |
2ebda74fd crypto: acomp - a... |
19 20 |
#include <net/netlink.h> #include <crypto/internal/acompress.h> |
1ab53a77b crypto: acomp - a... |
21 |
#include <crypto/internal/scompress.h> |
2ebda74fd crypto: acomp - a... |
22 |
#include "internal.h" |
1ab53a77b crypto: acomp - a... |
23 |
static const struct crypto_type crypto_acomp_type; |
2ebda74fd crypto: acomp - a... |
24 25 26 27 |
#ifdef CONFIG_NET static int crypto_acomp_report(struct sk_buff *skb, struct crypto_alg *alg) { struct crypto_report_acomp racomp; |
37db69e0b crypto: user - cl... |
28 |
memset(&racomp, 0, sizeof(racomp)); |
2ebda74fd crypto: acomp - a... |
29 |
|
37db69e0b crypto: user - cl... |
30 |
strscpy(racomp.type, "acomp", sizeof(racomp.type)); |
2ebda74fd crypto: acomp - a... |
31 |
|
37db69e0b crypto: user - cl... |
32 |
return nla_put(skb, CRYPTOCFGA_REPORT_ACOMP, sizeof(racomp), &racomp); |
2ebda74fd crypto: acomp - a... |
33 34 35 36 37 38 39 40 41 |
} #else static int crypto_acomp_report(struct sk_buff *skb, struct crypto_alg *alg) { return -ENOSYS; } #endif static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg) |
d8c34b949 crypto: Replaced ... |
42 |
__maybe_unused; |
2ebda74fd crypto: acomp - a... |
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 |
static void crypto_acomp_show(struct seq_file *m, struct crypto_alg *alg) { seq_puts(m, "type : acomp "); } static void crypto_acomp_exit_tfm(struct crypto_tfm *tfm) { struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm); struct acomp_alg *alg = crypto_acomp_alg(acomp); alg->exit(acomp); } static int crypto_acomp_init_tfm(struct crypto_tfm *tfm) { struct crypto_acomp *acomp = __crypto_acomp_tfm(tfm); struct acomp_alg *alg = crypto_acomp_alg(acomp); |
1ab53a77b crypto: acomp - a... |
62 63 64 65 66 67 68 |
if (tfm->__crt_alg->cra_type != &crypto_acomp_type) return crypto_init_scomp_ops_async(tfm); acomp->compress = alg->compress; acomp->decompress = alg->decompress; acomp->dst_free = alg->dst_free; acomp->reqsize = alg->reqsize; |
2ebda74fd crypto: acomp - a... |
69 70 71 72 73 74 75 76 |
if (alg->exit) acomp->base.exit = crypto_acomp_exit_tfm; if (alg->init) return alg->init(acomp); return 0; } |
1ab53a77b crypto: acomp - a... |
77 78 79 80 81 82 83 84 85 |
static unsigned int crypto_acomp_extsize(struct crypto_alg *alg) { int extsize = crypto_alg_extsize(alg); if (alg->cra_type != &crypto_acomp_type) extsize += sizeof(struct crypto_scomp *); return extsize; } |
2ebda74fd crypto: acomp - a... |
86 |
static const struct crypto_type crypto_acomp_type = { |
1ab53a77b crypto: acomp - a... |
87 |
.extsize = crypto_acomp_extsize, |
2ebda74fd crypto: acomp - a... |
88 89 90 91 92 93 |
.init_tfm = crypto_acomp_init_tfm, #ifdef CONFIG_PROC_FS .show = crypto_acomp_show, #endif .report = crypto_acomp_report, .maskclear = ~CRYPTO_ALG_TYPE_MASK, |
1ab53a77b crypto: acomp - a... |
94 |
.maskset = CRYPTO_ALG_TYPE_ACOMPRESS_MASK, |
2ebda74fd crypto: acomp - a... |
95 96 97 98 99 100 101 102 103 104 |
.type = CRYPTO_ALG_TYPE_ACOMPRESS, .tfmsize = offsetof(struct crypto_acomp, base), }; struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type, u32 mask) { return crypto_alloc_tfm(alg_name, &crypto_acomp_type, type, mask); } EXPORT_SYMBOL_GPL(crypto_alloc_acomp); |
1ab53a77b crypto: acomp - a... |
105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 |
struct acomp_req *acomp_request_alloc(struct crypto_acomp *acomp) { struct crypto_tfm *tfm = crypto_acomp_tfm(acomp); struct acomp_req *req; req = __acomp_request_alloc(acomp); if (req && (tfm->__crt_alg->cra_type != &crypto_acomp_type)) return crypto_acomp_scomp_alloc_ctx(req); return req; } EXPORT_SYMBOL_GPL(acomp_request_alloc); void acomp_request_free(struct acomp_req *req) { struct crypto_acomp *acomp = crypto_acomp_reqtfm(req); struct crypto_tfm *tfm = crypto_acomp_tfm(acomp); if (tfm->__crt_alg->cra_type != &crypto_acomp_type) crypto_acomp_scomp_free_ctx(req); if (req->flags & CRYPTO_ACOMP_ALLOC_OUTPUT) { acomp->dst_free(req->dst); req->dst = NULL; } __acomp_request_free(req); } EXPORT_SYMBOL_GPL(acomp_request_free); |
2ebda74fd crypto: acomp - a... |
134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 |
int crypto_register_acomp(struct acomp_alg *alg) { struct crypto_alg *base = &alg->base; base->cra_type = &crypto_acomp_type; base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; base->cra_flags |= CRYPTO_ALG_TYPE_ACOMPRESS; return crypto_register_alg(base); } EXPORT_SYMBOL_GPL(crypto_register_acomp); int crypto_unregister_acomp(struct acomp_alg *alg) { return crypto_unregister_alg(&alg->base); } EXPORT_SYMBOL_GPL(crypto_unregister_acomp); |
3ce5bc72e crypto: acomp - a... |
151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 |
int crypto_register_acomps(struct acomp_alg *algs, int count) { int i, ret; for (i = 0; i < count; i++) { ret = crypto_register_acomp(&algs[i]); if (ret) goto err; } return 0; err: for (--i; i >= 0; --i) crypto_unregister_acomp(&algs[i]); return ret; } EXPORT_SYMBOL_GPL(crypto_register_acomps); void crypto_unregister_acomps(struct acomp_alg *algs, int count) { int i; for (i = count - 1; i >= 0; --i) crypto_unregister_acomp(&algs[i]); } EXPORT_SYMBOL_GPL(crypto_unregister_acomps); |
2ebda74fd crypto: acomp - a... |
179 180 |
MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Asynchronous compression type"); |