diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/caam/caamalg.c | 75 |
1 files changed, 49 insertions, 26 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index daca933a82ec..3c50a5082127 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -87,8 +87,8 @@ #define DESC_GCM_DEC_LEN (DESC_GCM_BASE + 12 * CAAM_CMD_SZ) #define DESC_RFC4106_BASE (3 * CAAM_CMD_SZ) -#define DESC_RFC4106_ENC_LEN (DESC_RFC4106_BASE + 10 * CAAM_CMD_SZ) -#define DESC_RFC4106_DEC_LEN (DESC_RFC4106_BASE + 10 * CAAM_CMD_SZ) +#define DESC_RFC4106_ENC_LEN (DESC_RFC4106_BASE + 12 * CAAM_CMD_SZ) +#define DESC_RFC4106_DEC_LEN (DESC_RFC4106_BASE + 12 * CAAM_CMD_SZ) #define DESC_RFC4543_BASE (3 * CAAM_CMD_SZ) #define DESC_RFC4543_ENC_LEN (DESC_RFC4543_BASE + 11 * CAAM_CMD_SZ) @@ -976,29 +976,32 @@ static int rfc4106_set_sh_desc(struct crypto_aead *aead) append_operation(desc, ctx->class1_alg_type | OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT); - append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); + append_math_sub_imm_u32(desc, VARSEQINLEN, REG3, IMM, 8); append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); - /* Skip assoc data */ - append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); - /* Read assoc data */ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1); - /* cryptlen = seqoutlen - assoclen */ - append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ); + /* Skip IV */ + append_seq_fifo_load(desc, 8, FIFOLD_CLASS_SKIP); /* Will read cryptlen bytes */ append_math_sub(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ); - /* Write encrypted data */ - append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF); - /* Read payload data */ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1); + /* Skip assoc data */ + append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); + + /* cryptlen = seqoutlen - assoclen */ + append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ); + + /* Write encrypted data */ + append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF); + /* Write ICV */ append_seq_store(desc, ctx->authsize, LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT); @@ -1044,29 +1047,32 @@ static int rfc4106_set_sh_desc(struct crypto_aead *aead) append_operation(desc, ctx->class1_alg_type | OP_ALG_AS_INITFINAL | OP_ALG_DECRYPT | OP_ALG_ICV_ON); - append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); + append_math_sub_imm_u32(desc, VARSEQINLEN, REG3, IMM, 8); append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); - /* Skip assoc data */ - append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); - /* Read assoc data */ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1); - /* Will write cryptlen bytes */ - append_math_sub(desc, VARSEQOUTLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ); + /* Skip IV */ + append_seq_fifo_load(desc, 8, FIFOLD_CLASS_SKIP); /* Will read cryptlen bytes */ - append_math_sub(desc, VARSEQINLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ); - - /* Store payload data */ - append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF); + append_math_sub(desc, VARSEQINLEN, SEQOUTLEN, REG3, CAAM_CMD_SZ); /* Read encrypted data */ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1); + /* Skip assoc data */ + append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); + + /* Will write cryptlen bytes */ + append_math_sub(desc, VARSEQOUTLEN, SEQOUTLEN, REG0, CAAM_CMD_SZ); + + /* Store payload data */ + append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF); + /* Read ICV */ append_seq_fifo_load(desc, ctx->authsize, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_ICV | FIFOLD_TYPE_LAST1); @@ -2685,6 +2691,14 @@ static int gcm_encrypt(struct aead_request *req) return ret; } +static int ipsec_gcm_encrypt(struct aead_request *req) +{ + if (req->assoclen < 8) + return -EINVAL; + + return gcm_encrypt(req); +} + static int old_aead_encrypt(struct aead_request *req) { struct aead_edesc *edesc; @@ -2757,6 +2771,14 @@ static int gcm_decrypt(struct aead_request *req) return ret; } +static int ipsec_gcm_decrypt(struct aead_request *req) +{ + if (req->assoclen < 8) + return -EINVAL; + + return gcm_decrypt(req); +} + static int old_aead_decrypt(struct aead_request *req) { struct aead_edesc *edesc; @@ -4058,8 +4080,8 @@ static struct caam_aead_alg driver_aeads[] = { }, .setkey = rfc4106_setkey, .setauthsize = rfc4106_setauthsize, - .encrypt = gcm_encrypt, - .decrypt = gcm_decrypt, + .encrypt = ipsec_gcm_encrypt, + .decrypt = ipsec_gcm_decrypt, .ivsize = 8, .maxauthsize = AES_BLOCK_SIZE, }, @@ -4076,8 +4098,8 @@ static struct caam_aead_alg driver_aeads[] = { }, .setkey = rfc4543_setkey, .setauthsize = rfc4543_setauthsize, - .encrypt = gcm_encrypt, - .decrypt = gcm_decrypt, + .encrypt = ipsec_gcm_encrypt, + .decrypt = ipsec_gcm_decrypt, .ivsize = 8, .maxauthsize = AES_BLOCK_SIZE, }, @@ -4260,7 +4282,8 @@ static void caam_aead_alg_init(struct caam_aead_alg *t_alg) alg->base.cra_module = THIS_MODULE; alg->base.cra_priority = CAAM_CRA_PRIORITY; alg->base.cra_ctxsize = sizeof(struct caam_ctx); - alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY; + alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY | + CRYPTO_ALG_AEAD_NEW; alg->init = caam_aead_init; alg->exit = caam_aead_exit; |