^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * AMD Cryptographic Coprocessor (CCP) SHA crypto API support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2013,2018 Advanced Micro Devices, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Tom Lendacky <thomas.lendacky@amd.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Author: Gary R Hook <gary.hook@amd.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/scatterlist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <crypto/algapi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <crypto/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <crypto/hmac.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <crypto/sha.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <crypto/scatterwalk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "ccp-crypto.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int ccp_sha_complete(struct crypto_async_request *async_req, int ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct ahash_request *req = ahash_request_cast(async_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) unsigned int digest_size = crypto_ahash_digestsize(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) goto e_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (rctx->hash_rem) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* Save remaining data to buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) unsigned int offset = rctx->nbytes - rctx->hash_rem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) scatterwalk_map_and_copy(rctx->buf, rctx->src,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) offset, rctx->hash_rem, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) rctx->buf_count = rctx->hash_rem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) rctx->buf_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* Update result area if supplied */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if (req->result && rctx->final)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) memcpy(req->result, rctx->ctx, digest_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) e_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) sg_free_table(&rctx->data_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static int ccp_do_sha_update(struct ahash_request *req, unsigned int nbytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) unsigned int final)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct ccp_ctx *ctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned int block_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned int sg_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) gfp_t gfp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u64 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) len = (u64)rctx->buf_count + (u64)nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (!final && (len <= block_size)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) scatterwalk_map_and_copy(rctx->buf + rctx->buf_count, req->src,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 0, nbytes, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) rctx->buf_count += nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) rctx->src = req->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) rctx->nbytes = nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) rctx->final = final;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) rctx->hash_rem = final ? 0 : len & (block_size - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) rctx->hash_cnt = len - rctx->hash_rem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (!final && !rctx->hash_rem) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* CCP can't do zero length final, so keep some data around */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) rctx->hash_cnt -= block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) rctx->hash_rem = block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /* Initialize the context scatterlist */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) sg_init_one(&rctx->ctx_sg, rctx->ctx, sizeof(rctx->ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) sg = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (rctx->buf_count && nbytes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /* Build the data scatterlist table - allocate enough entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * for both data pieces (buffer and input data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) gfp = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) GFP_KERNEL : GFP_ATOMIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) sg_count = sg_nents(req->src) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ret = sg_alloc_table(&rctx->data_sg, sg_count, gfp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) sg_init_one(&rctx->buf_sg, rctx->buf, rctx->buf_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) sg = ccp_crypto_sg_table_add(&rctx->data_sg, &rctx->buf_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (!sg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) goto e_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) sg = ccp_crypto_sg_table_add(&rctx->data_sg, req->src);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (!sg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) goto e_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) sg_mark_end(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) sg = rctx->data_sg.sgl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) } else if (rctx->buf_count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) sg_init_one(&rctx->buf_sg, rctx->buf, rctx->buf_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) sg = &rctx->buf_sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) } else if (nbytes) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) sg = req->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) rctx->msg_bits += (rctx->hash_cnt << 3); /* Total in bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) memset(&rctx->cmd, 0, sizeof(rctx->cmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) INIT_LIST_HEAD(&rctx->cmd.entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) rctx->cmd.engine = CCP_ENGINE_SHA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) rctx->cmd.u.sha.type = rctx->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) rctx->cmd.u.sha.ctx = &rctx->ctx_sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) switch (rctx->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) case CCP_SHA_TYPE_1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) rctx->cmd.u.sha.ctx_len = SHA1_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) case CCP_SHA_TYPE_224:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) rctx->cmd.u.sha.ctx_len = SHA224_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) case CCP_SHA_TYPE_256:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) rctx->cmd.u.sha.ctx_len = SHA256_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) case CCP_SHA_TYPE_384:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) rctx->cmd.u.sha.ctx_len = SHA384_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) case CCP_SHA_TYPE_512:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) rctx->cmd.u.sha.ctx_len = SHA512_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /* Should never get here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) rctx->cmd.u.sha.src = sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) rctx->cmd.u.sha.src_len = rctx->hash_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) rctx->cmd.u.sha.opad = ctx->u.sha.key_len ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) &ctx->u.sha.opad_sg : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) rctx->cmd.u.sha.opad_len = ctx->u.sha.key_len ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) ctx->u.sha.opad_count : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) rctx->cmd.u.sha.first = rctx->first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) rctx->cmd.u.sha.final = rctx->final;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) rctx->cmd.u.sha.msg_bits = rctx->msg_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) rctx->first = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) e_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) sg_free_table(&rctx->data_sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static int ccp_sha_init(struct ahash_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct ccp_ctx *ctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct ccp_crypto_ahash_alg *alg =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) ccp_crypto_ahash_alg(crypto_ahash_tfm(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) unsigned int block_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) memset(rctx, 0, sizeof(*rctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) rctx->type = alg->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) rctx->first = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (ctx->u.sha.key_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /* Buffer the HMAC key for first update */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) memcpy(rctx->buf, ctx->u.sha.ipad, block_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) rctx->buf_count = block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static int ccp_sha_update(struct ahash_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return ccp_do_sha_update(req, req->nbytes, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static int ccp_sha_final(struct ahash_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return ccp_do_sha_update(req, 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static int ccp_sha_finup(struct ahash_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return ccp_do_sha_update(req, req->nbytes, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) static int ccp_sha_digest(struct ahash_request *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) ret = ccp_sha_init(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return ccp_sha_finup(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) static int ccp_sha_export(struct ahash_request *req, void *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct ccp_sha_exp_ctx state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* Don't let anything leak to 'out' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) memset(&state, 0, sizeof(state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) state.type = rctx->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) state.msg_bits = rctx->msg_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) state.first = rctx->first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) memcpy(state.ctx, rctx->ctx, sizeof(state.ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) state.buf_count = rctx->buf_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) memcpy(state.buf, rctx->buf, sizeof(state.buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) /* 'out' may not be aligned so memcpy from local variable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) memcpy(out, &state, sizeof(state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static int ccp_sha_import(struct ahash_request *req, const void *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) struct ccp_sha_req_ctx *rctx = ahash_request_ctx(req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct ccp_sha_exp_ctx state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /* 'in' may not be aligned so memcpy to local variable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) memcpy(&state, in, sizeof(state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) memset(rctx, 0, sizeof(*rctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) rctx->type = state.type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) rctx->msg_bits = state.msg_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) rctx->first = state.first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) memcpy(rctx->ctx, state.ctx, sizeof(rctx->ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) rctx->buf_count = state.buf_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) memcpy(rctx->buf, state.buf, sizeof(rctx->buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) unsigned int key_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) struct crypto_shash *shash = ctx->u.sha.hmac_tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) unsigned int block_size = crypto_shash_blocksize(shash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) unsigned int digest_size = crypto_shash_digestsize(shash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) int i, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) /* Set to zero until complete */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) ctx->u.sha.key_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) /* Clear key area to provide zero padding for keys smaller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * than the block size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) memset(ctx->u.sha.key, 0, sizeof(ctx->u.sha.key));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (key_len > block_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) /* Must hash the input key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) ret = crypto_shash_tfm_digest(shash, key, key_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ctx->u.sha.key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) key_len = digest_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) memcpy(ctx->u.sha.key, key, key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) for (i = 0; i < block_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) ctx->u.sha.ipad[i] = ctx->u.sha.key[i] ^ HMAC_IPAD_VALUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) ctx->u.sha.opad[i] = ctx->u.sha.key[i] ^ HMAC_OPAD_VALUE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) sg_init_one(&ctx->u.sha.opad_sg, ctx->u.sha.opad, block_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) ctx->u.sha.opad_count = block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) ctx->u.sha.key_len = key_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static int ccp_sha_cra_init(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) ctx->complete = ccp_sha_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) ctx->u.sha.key_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) crypto_ahash_set_reqsize(ahash, sizeof(struct ccp_sha_req_ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static void ccp_sha_cra_exit(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) static int ccp_hmac_sha_cra_init(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct ccp_crypto_ahash_alg *alg = ccp_crypto_ahash_alg(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) struct crypto_shash *hmac_tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) hmac_tfm = crypto_alloc_shash(alg->child_alg, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (IS_ERR(hmac_tfm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) pr_warn("could not load driver %s need for HMAC support\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) alg->child_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return PTR_ERR(hmac_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) ctx->u.sha.hmac_tfm = hmac_tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return ccp_sha_cra_init(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static void ccp_hmac_sha_cra_exit(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (ctx->u.sha.hmac_tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) crypto_free_shash(ctx->u.sha.hmac_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) ccp_sha_cra_exit(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) struct ccp_sha_def {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) unsigned int version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) const char *drv_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) enum ccp_sha_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) u32 digest_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) u32 block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) static struct ccp_sha_def sha_algs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) .version = CCP_VERSION(3, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) .name = "sha1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) .drv_name = "sha1-ccp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) .type = CCP_SHA_TYPE_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) .digest_size = SHA1_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) .block_size = SHA1_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) .version = CCP_VERSION(3, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) .name = "sha224",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) .drv_name = "sha224-ccp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) .type = CCP_SHA_TYPE_224,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) .digest_size = SHA224_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) .block_size = SHA224_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) .version = CCP_VERSION(3, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) .name = "sha256",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) .drv_name = "sha256-ccp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) .type = CCP_SHA_TYPE_256,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) .digest_size = SHA256_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) .block_size = SHA256_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) .version = CCP_VERSION(5, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) .name = "sha384",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) .drv_name = "sha384-ccp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) .type = CCP_SHA_TYPE_384,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) .digest_size = SHA384_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) .block_size = SHA384_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) .version = CCP_VERSION(5, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) .name = "sha512",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) .drv_name = "sha512-ccp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) .type = CCP_SHA_TYPE_512,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) .digest_size = SHA512_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) .block_size = SHA512_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) static int ccp_register_hmac_alg(struct list_head *head,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) const struct ccp_sha_def *def,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) const struct ccp_crypto_ahash_alg *base_alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) struct ccp_crypto_ahash_alg *ccp_alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct ahash_alg *alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct hash_alg_common *halg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) struct crypto_alg *base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) if (!ccp_alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) /* Copy the base algorithm and only change what's necessary */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) *ccp_alg = *base_alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) INIT_LIST_HEAD(&ccp_alg->entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) strscpy(ccp_alg->child_alg, def->name, CRYPTO_MAX_ALG_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) alg = &ccp_alg->alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) alg->setkey = ccp_sha_setkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) halg = &alg->halg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) base = &halg->base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "hmac(%s)", def->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "hmac-%s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) def->drv_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) base->cra_init = ccp_hmac_sha_cra_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) base->cra_exit = ccp_hmac_sha_cra_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) ret = crypto_register_ahash(alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) pr_err("%s ahash algorithm registration error (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) base->cra_name, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) kfree(ccp_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) list_add(&ccp_alg->entry, head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) static int ccp_register_sha_alg(struct list_head *head,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) const struct ccp_sha_def *def)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct ccp_crypto_ahash_alg *ccp_alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) struct ahash_alg *alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) struct hash_alg_common *halg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) struct crypto_alg *base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (!ccp_alg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) INIT_LIST_HEAD(&ccp_alg->entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) ccp_alg->type = def->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) alg = &ccp_alg->alg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) alg->init = ccp_sha_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) alg->update = ccp_sha_update;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) alg->final = ccp_sha_final;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) alg->finup = ccp_sha_finup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) alg->digest = ccp_sha_digest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) alg->export = ccp_sha_export;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) alg->import = ccp_sha_import;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) halg = &alg->halg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) halg->digestsize = def->digest_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) halg->statesize = sizeof(struct ccp_sha_exp_ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) base = &halg->base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) def->drv_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) base->cra_flags = CRYPTO_ALG_ASYNC |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) CRYPTO_ALG_ALLOCATES_MEMORY |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) CRYPTO_ALG_KERN_DRIVER_ONLY |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) CRYPTO_ALG_NEED_FALLBACK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) base->cra_blocksize = def->block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) base->cra_ctxsize = sizeof(struct ccp_ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) base->cra_priority = CCP_CRA_PRIORITY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) base->cra_init = ccp_sha_cra_init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) base->cra_exit = ccp_sha_cra_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) base->cra_module = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) ret = crypto_register_ahash(alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) pr_err("%s ahash algorithm registration error (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) base->cra_name, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) kfree(ccp_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) list_add(&ccp_alg->entry, head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) ret = ccp_register_hmac_alg(head, def, ccp_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) int ccp_register_sha_algs(struct list_head *head)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) int i, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) unsigned int ccpversion = ccp_version();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) for (i = 0; i < ARRAY_SIZE(sha_algs); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) if (sha_algs[i].version > ccpversion)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) ret = ccp_register_sha_alg(head, &sha_algs[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags