diff options
Diffstat (limited to 'drivers/crypto/marvell/hash.c')
| -rw-r--r-- | drivers/crypto/marvell/hash.c | 172 |
1 files changed, 170 insertions, 2 deletions
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c index 528da26..36bb756 100644 --- a/drivers/crypto/marvell/hash.c +++ b/drivers/crypto/marvell/hash.c @@ -12,6 +12,7 @@ * by the Free Software Foundation. */ +#include <crypto/md5.h> #include <crypto/sha.h> #include "cesa.h" @@ -346,8 +347,16 @@ static int mv_cesa_ahash_process(struct crypto_async_request *req, u32 status) ahashreq->nbytes - creq->cache_ptr); if (creq->last_req) { - for (i = 0; i < digsize / 4; i++) - creq->state[i] = cpu_to_be32(creq->state[i]); + for (i = 0; i < digsize / 4; i++) { + /* + * Hardware provides MD5 digest in a different + * endianness than SHA-1 and SHA-256 ones. + */ + if (digsize == MD5_DIGEST_SIZE) + creq->state[i] = cpu_to_le32(creq->state[i]); + else + creq->state[i] = cpu_to_be32(creq->state[i]); + } memcpy(ahashreq->result, creq->state, digsize); } @@ -788,6 +797,95 @@ static int mv_cesa_ahash_finup(struct ahash_request *req) return ret; } +static int mv_cesa_md5_init(struct ahash_request *req) +{ + struct mv_cesa_op_ctx tmpl; + + mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_MD5); + + mv_cesa_ahash_init(req, &tmpl); + + return 0; +} + +static int mv_cesa_md5_export(struct ahash_request *req, void *out) +{ + struct md5_state *out_state = out; + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct mv_cesa_ahash_req *creq = ahash_request_ctx(req); + unsigned int digsize = crypto_ahash_digestsize(ahash); + + out_state->byte_count = creq->len; + memcpy(out_state->hash, creq->state, digsize); + memset(out_state->block, 0, sizeof(out_state->block)); + if (creq->cache) + memcpy(out_state->block, creq->cache, creq->cache_ptr); + + return 0; +} + +static int mv_cesa_md5_import(struct ahash_request *req, const void *in) +{ + const struct md5_state *in_state = in; + struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); + struct mv_cesa_ahash_req *creq = ahash_request_ctx(req); + unsigned int digsize = crypto_ahash_digestsize(ahash); + unsigned int cache_ptr; + int ret; + + creq->len = in_state->byte_count; + memcpy(creq->state, in_state->hash, digsize); + creq->cache_ptr = 0; + + cache_ptr = creq->len % sizeof(in_state->block); + if (!cache_ptr) + return 0; + + ret = mv_cesa_ahash_alloc_cache(req); + if (ret) + return ret; + + memcpy(creq->cache, in_state->block, cache_ptr); + creq->cache_ptr = cache_ptr; + + return 0; +} + +static int mv_cesa_md5_digest(struct ahash_request *req) +{ + int ret; + + ret = mv_cesa_md5_init(req); + if (ret) + return ret; + + return mv_cesa_ahash_finup(req); +} + +struct ahash_alg mv_md5_alg = { + .init = mv_cesa_md5_init, + .update = mv_cesa_ahash_update, + .final = mv_cesa_ahash_final, + .finup = mv_cesa_ahash_finup, + .digest = mv_cesa_md5_digest, + .export = mv_cesa_md5_export, + .import = mv_cesa_md5_import, + .halg = { + .digestsize = MD5_DIGEST_SIZE, + .base = { + .cra_name = "md5", + .cra_driver_name = "mv-md5", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = MD5_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct mv_cesa_hash_ctx), + .cra_init = mv_cesa_ahash_cra_init, + .cra_module = THIS_MODULE, + } + } +}; + static int mv_cesa_sha1_init(struct ahash_request *req) { struct mv_cesa_op_ctx tmpl; @@ -1043,6 +1141,76 @@ static int mv_cesa_ahmac_cra_init(struct crypto_tfm *tfm) return 0; } +static int mv_cesa_ahmac_md5_init(struct ahash_request *req) +{ + struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(req->base.tfm); + struct mv_cesa_op_ctx tmpl; + + mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_MACM_HMAC_MD5); + memcpy(tmpl.ctx.hash.iv, ctx->iv, sizeof(ctx->iv)); + + mv_cesa_ahash_init(req, &tmpl); + + return 0; +} + +static int mv_cesa_ahmac_md5_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen) +{ + struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); + struct md5_state istate, ostate; + int ret, i; + + ret = mv_cesa_ahmac_setkey("mv-md5", key, keylen, &istate, &ostate); + if (ret) + return ret; + + for (i = 0; i < ARRAY_SIZE(istate.hash); i++) + ctx->iv[i] = be32_to_cpu(istate.hash[i]); + + for (i = 0; i < ARRAY_SIZE(ostate.hash); i++) + ctx->iv[i + 8] = be32_to_cpu(ostate.hash[i]); + + return 0; +} + +static int mv_cesa_ahmac_md5_digest(struct ahash_request *req) +{ + int ret; + + ret = mv_cesa_ahmac_md5_init(req); + if (ret) + return ret; + + return mv_cesa_ahash_finup(req); +} + +struct ahash_alg mv_ahmac_md5_alg = { + .init = mv_cesa_ahmac_md5_init, + .update = mv_cesa_ahash_update, + .final = mv_cesa_ahash_final, + .finup = mv_cesa_ahash_finup, + .digest = mv_cesa_ahmac_md5_digest, + .setkey = mv_cesa_ahmac_md5_setkey, + .export = mv_cesa_md5_export, + .import = mv_cesa_md5_import, + .halg = { + .digestsize = MD5_DIGEST_SIZE, + .statesize = sizeof(struct md5_state), + .base = { + .cra_name = "hmac(md5)", + .cra_driver_name = "mv-hmac-md5", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = MD5_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct mv_cesa_hmac_ctx), + .cra_init = mv_cesa_ahmac_cra_init, + .cra_module = THIS_MODULE, + } + } +}; + static int mv_cesa_ahmac_sha1_init(struct ahash_request *req) { struct mv_cesa_hmac_ctx *ctx = crypto_tfm_ctx(req->base.tfm); 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