diff options
| -rw-r--r-- | drivers/crypto/caam/caamalg.c | 52 | ||||
| -rw-r--r-- | drivers/crypto/caam/caamalg_desc.c | 176 | ||||
| -rw-r--r-- | drivers/crypto/caam/caamalg_desc.h | 10 | ||||
| -rw-r--r-- | drivers/crypto/caam/caamalg_qi.c | 31 | ||||
| -rw-r--r-- | drivers/crypto/caam/caamhash.c | 56 | ||||
| -rw-r--r-- | drivers/crypto/caam/desc.h | 29 | ||||
| -rw-r--r-- | drivers/crypto/caam/desc_constr.h | 41 |
7 files changed, 293 insertions, 102 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index 6480a01..0de4a84 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -118,6 +118,7 @@ static int aead_null_set_sh_desc(struct crypto_aead *aead) { struct caam_ctx *ctx = crypto_aead_ctx(aead); struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); u32 *desc; int rem_bytes = CAAM_DESC_BYTES_MAX - AEAD_DESC_JOB_IO_LEN - ctx->adata.keylen_pad; @@ -136,7 +137,8 @@ static int aead_null_set_sh_desc(struct crypto_aead *aead) /* aead_encrypt shared descriptor */ desc = ctx->sh_desc_enc; - cnstr_shdsc_aead_null_encap(desc, &ctx->adata, ctx->authsize); + cnstr_shdsc_aead_null_encap(desc, &ctx->adata, ctx->authsize, + ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, desc_bytes(desc), DMA_TO_DEVICE); @@ -154,7 +156,8 @@ static int aead_null_set_sh_desc(struct crypto_aead *aead) /* aead_decrypt shared descriptor */ desc = ctx->sh_desc_dec; - cnstr_shdsc_aead_null_decap(desc, &ctx->adata, ctx->authsize); + cnstr_shdsc_aead_null_decap(desc, &ctx->adata, ctx->authsize, + ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, desc_bytes(desc), DMA_TO_DEVICE); @@ -168,6 +171,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead) unsigned int ivsize = crypto_aead_ivsize(aead); struct caam_ctx *ctx = crypto_aead_ctx(aead); struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); u32 ctx1_iv_off = 0; u32 *desc, *nonce = NULL; u32 inl_mask; @@ -234,7 +238,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead) desc = ctx->sh_desc_enc; cnstr_shdsc_aead_encap(desc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, is_rfc3686, nonce, ctx1_iv_off, - false); + false, ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, desc_bytes(desc), DMA_TO_DEVICE); @@ -266,7 +270,7 @@ skip_enc: desc = ctx->sh_desc_dec; cnstr_shdsc_aead_decap(desc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, alg->caam.geniv, is_rfc3686, - nonce, ctx1_iv_off, false); + nonce, ctx1_iv_off, false, ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, desc_bytes(desc), DMA_TO_DEVICE); @@ -300,7 +304,7 @@ skip_enc: desc = ctx->sh_desc_enc; cnstr_shdsc_aead_givencap(desc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, is_rfc3686, nonce, - ctx1_iv_off, false); + ctx1_iv_off, false, ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, desc_bytes(desc), DMA_TO_DEVICE); @@ -510,6 +514,7 @@ static int aead_setkey(struct crypto_aead *aead, { struct caam_ctx *ctx = crypto_aead_ctx(aead); struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); struct crypto_authenc_keys keys; int ret = 0; @@ -524,6 +529,27 @@ static int aead_setkey(struct crypto_aead *aead, DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); #endif + /* + * If DKP is supported, use it in the shared descriptor to generate + * the split key. + */ + if (ctrlpriv->era >= 6) { + ctx->adata.keylen = keys.authkeylen; + ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype & + OP_ALG_ALGSEL_MASK); + + if (ctx->adata.keylen_pad + keys.enckeylen > CAAM_MAX_KEY_SIZE) + goto badkey; + + memcpy(ctx->key, keys.authkey, keys.authkeylen); + memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, + keys.enckeylen); + dma_sync_single_for_device(jrdev, ctx->key_dma, + ctx->adata.keylen_pad + + keys.enckeylen, DMA_TO_DEVICE); + goto skip_split_key; + } + ret = gen_split_key(ctx->jrdev, ctx->key, &ctx->adata, keys.authkey, keys.authkeylen, CAAM_MAX_KEY_SIZE - keys.enckeylen); @@ -540,6 +566,8 @@ static int aead_setkey(struct crypto_aead *aead, DUMP_PREFIX_ADDRESS, 16, 4, ctx->key, ctx->adata.keylen_pad + keys.enckeylen, 1); #endif + +skip_split_key: ctx->cdata.keylen = keys.enckeylen; return aead_set_sh_desc(aead); badkey: @@ -986,9 +1014,6 @@ static void init_aead_job(struct aead_request *req, append_seq_out_ptr(desc, dst_dma, req->assoclen + req->cryptlen - authsize, out_options); - - /* REG3 = assoclen */ - append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen); } static void init_gcm_job(struct aead_request *req, @@ -1003,6 +1028,7 @@ static void init_gcm_job(struct aead_request *req, unsigned int last; init_aead_job(req, edesc, all_contig, encrypt); + append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen); /* BUG This should not be specific to generic GCM. */ last = 0; @@ -1029,6 +1055,7 @@ static void init_authenc_job(struct aead_request *req, struct caam_aead_alg, aead); unsigned int ivsize = crypto_aead_ivsize(aead); struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent); const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CTR_MOD128); const bool is_rfc3686 = alg->caam.rfc3686; @@ -1052,6 +1079,15 @@ static void init_authenc_job(struct aead_request *req, init_aead_job(req, edesc, all_contig, encrypt); + /* + * {REG3, DPOVRD} = assoclen, depending on whether MATH command supports + * having DPOVRD as destination. + */ + if (ctrlpriv->era < 3) + append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen); + else + append_math_add_imm_u32(desc, DPOVRD, ZERO, IMM, req->assoclen); + if (ivsize && ((is_rfc3686 && encrypt) || !alg->caam.geniv)) append_load_as_imm(desc, req->iv, ivsize, LDST_CLASS_1_CCB | diff --git a/drivers/crypto/caam/caamalg_desc.c b/drivers/crypto/caam/caamalg_desc.c index d162120..6a7769e 100644 --- a/drivers/crypto/caam/caamalg_desc.c +++ b/drivers/crypto/caam/caamalg_desc.c @@ -45,16 +45,16 @@ static inline void append_dec_op1(u32 *desc, u32 type) * cnstr_shdsc_aead_null_encap - IPSec ESP encapsulation shared descriptor * (non-protocol) with no (null) encryption. * @desc: pointer to buffer used for descriptor construction - * @adata: pointer to authentication transform definitions. Note that since a - * split key is to be used, the size of the split key itself is - * specified. Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, - * SHA224, SHA256, SHA384, SHA512} ANDed with OP_ALG_AAI_HMAC_PRECOMP. + * @adata: pointer to authentication transform definitions. + * A split key is required for SEC Era < 6; the size of the split key + * is specified in this case. Valid algorithm values - one of + * OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed + * with OP_ALG_AAI_HMAC_PRECOMP. * @icvsize: integrity check value (ICV) size (truncated or full) - * - * Note: Requires an MDHA split key. + * @era: SEC Era */ void cnstr_shdsc_aead_null_encap(u32 * const desc, struct alginfo *adata, - unsigned int icvsize) + unsigned int icvsize, int era) { u32 *key_jump_cmd, *read_move_cmd, *write_move_cmd; @@ -63,13 +63,18 @@ void cnstr_shdsc_aead_null_encap(u32 * const desc, struct alginfo *adata, /* Skip if already shared */ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL | JUMP_COND_SHRD); - if (adata->key_inline) - append_key_as_imm(desc, adata->key_virt, adata->keylen_pad, - adata->keylen, CLASS_2 | KEY_DEST_MDHA_SPLIT | - KEY_ENC); - else - append_key(desc, adata->key_dma, adata->keylen, CLASS_2 | - KEY_DEST_MDHA_SPLIT | KEY_ENC); + if (era < 6) { + if (adata->key_inline) + append_key_as_imm(desc, adata->key_virt, + adata->keylen_pad, adata->keylen, + CLASS_2 | KEY_DEST_MDHA_SPLIT | + KEY_ENC); + else + append_key(desc, adata->key_dma, adata->keylen, + CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC); + } else { + append_proto_dkp(desc, adata); + } set_jump_tgt_here(desc, key_jump_cmd); /* assoclen + cryptlen = seqinlen */ @@ -121,16 +126,16 @@ EXPORT_SYMBOL(cnstr_shdsc_aead_null_encap); * cnstr_shdsc_aead_null_decap - IPSec ESP decapsulation shared descriptor * (non-protocol) with no (null) decryption. * @desc: pointer to buffer used for descriptor construction - * @adata: pointer to authentication transform definitions. Note that since a - * split key is to be used, the size of the split key itself is - * specified. Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, - * SHA224, SHA256, SHA384, SHA512} ANDed with OP_ALG_AAI_HMAC_PRECOMP. + * @adata: pointer to authentication transform definitions. + * A split key is required for SEC Era < 6; the size of the split key + * is specified in this case. Valid algorithm values - one of + * OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed + * with OP_ALG_AAI_HMAC_PRECOMP. * @icvsize: integrity check value (ICV) size (truncated or full) - * - * Note: Requires an MDHA split key. + * @era: SEC Era */ void cnstr_shdsc_aead_null_decap(u32 * const desc, struct alginfo *adata, - unsigned int icvsize) + unsigned int icvsize, int era) { u32 *key_jump_cmd, *read_move_cmd, *write_move_cmd, *jump_cmd; @@ -139,13 +144,18 @@ void cnstr_shdsc_aead_null_decap(u32 * const desc, struct alginfo *adata, /* Skip if already shared */ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL | JUMP_COND_SHRD); - if (adata->key_inline) - append_key_as_imm(desc, adata->key_virt, adata->keylen_pad, - adata->keylen, CLASS_2 | - KEY_DEST_MDHA_SPLIT | KEY_ENC); - else - append_key(desc, adata->key_dma, adata->keylen, CLASS_2 | - KEY_DEST_MDHA_SPLIT | KEY_ENC); + if (era < 6) { + if (adata->key_inline) + append_key_as_imm(desc, adata->key_virt, + adata->keylen_pad, adata->keylen, + CLASS_2 | KEY_DEST_MDHA_SPLIT | + KEY_ENC); + else + append_key(desc, adata->key_dma, adata->keylen, + CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC); + } else { + append_proto_dkp(desc, adata); + } set_jump_tgt_here(desc, key_jump_cmd); /* Class 2 operation */ @@ -204,7 +214,7 @@ EXPORT_SYMBOL(cnstr_shdsc_aead_null_decap); static void init_sh_desc_key_aead(u32 * const desc, struct alginfo * const cdata, struct alginfo * const adata, - const bool is_rfc3686, u32 *nonce) + const bool is_rfc3686, u32 *nonce, int era) { u32 *key_jump_cmd; unsigned int enckeylen = cdata->keylen; @@ -224,13 +234,18 @@ static void init_sh_desc_key_aead(u32 * const desc, if (is_rfc3686) enckeylen -= CTR_RFC3686_NONCE_SIZE; - if (adata->key_inline) - append_key_as_imm(desc, adata->key_virt, adata->keylen_pad, - adata->keylen, CLASS_2 | - KEY_DEST_MDHA_SPLIT | KEY_ENC); - else - append_key(desc, adata->key_dma, adata->keylen, CLASS_2 | - KEY_DEST_MDHA_SPLIT | KEY_ENC); + if (era < 6) { + if (adata->key_inline) + append_key_as_imm(desc, adata->key_virt, + adata->keylen_pad, adata->keylen, + CLASS_2 | KEY_DEST_MDHA_SPLIT | + KEY_ENC); + else + append_key(desc, adata->key_dma, adata->keylen, + CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC); + } else { + append_proto_dkp(desc, adata); + } if (cdata->key_inline) append_key_as_imm(desc, cdata->key_virt, enckeylen, @@ -261,26 +276,27 @@ static void init_sh_desc_key_aead(u32 * const desc, * @cdata: pointer to block cipher transform definitions * Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed * with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128. - * @adata: pointer to authentication transform definitions. Note that since a - * split key is to be used, the size of the split key itself is - * specified. Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, - * SHA224, SHA256, SHA384, SHA512} ANDed with OP_ALG_AAI_HMAC_PRECOMP. + * @adata: pointer to authentication transform definitions. + * A split key is required for SEC Era < 6; the size of the split key + * is specified in this case. Valid algorithm values - one of + * OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed + * with OP_ALG_AAI_HMAC_PRECOMP. * @ivsize: initialization vector size * @icvsize: integrity check value (ICV) size (truncated or full) * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template * @nonce: pointer to rfc3686 nonce * @ctx1_iv_off: IV offset in CONTEXT1 register * @is_qi: true when called from caam/qi - * - * Note: Requires an MDHA split key. + * @era: SEC Era */ void cnstr_shdsc_aead_encap(u32 * const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int ivsize, unsigned int icvsize, const bool is_rfc3686, - u32 *nonce, const u32 ctx1_iv_off, const bool is_qi) + u32 *nonce, const u32 ctx1_iv_off, const bool is_qi, + int era) { /* Note: Context registers are saved. */ - init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce); + init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce, era); /* Class 2 operation */ append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL | @@ -306,8 +322,13 @@ void cnstr_shdsc_aead_encap(u32 * const desc, struct alginfo *cdata, } /* Read and write assoclen bytes */ - append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); - append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); + if (is_qi || era < 3) { + append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); + append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); + } else { + append_math_add(desc, VARSEQINLEN, ZERO, DPOVRD, CAAM_CMD_SZ); + append_math_add(desc, VARSEQOUTLEN, ZERO, DPOVRD, CAAM_CMD_SZ); + } /* Skip assoc data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); @@ -350,27 +371,27 @@ EXPORT_SYMBOL(cnstr_shdsc_aead_encap); * @cdata: pointer to block cipher transform definitions * Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed * with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128. - * @adata: pointer to authentication transform definitions. Note that since a - * split key is to be used, the size of the split key itself is - * specified. Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, - * SHA224, SHA256, SHA384, SHA512} ANDed with OP_ALG_AAI_HMAC_PRECOMP. + * @adata: pointer to authentication transform definitions. + * A split key is required for SEC Era < 6; the size of the split key + * is specified in this case. Valid algorithm values - one of + * OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed + * with OP_ALG_AAI_HMAC_PRECOMP. * @ivsize: initialization vector size * @icvsize: integrity check value (ICV) size (truncated or full) * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template * @nonce: pointer to rfc3686 nonce * @ctx1_iv_off: IV offset in CONTEXT1 register * @is_qi: true when called from caam/qi - * - * Note: Requires an MDHA split key. + * @era: SEC Era */ void cnstr_shdsc_aead_decap(u32 * const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int ivsize, unsigned int icvsize, const bool geniv, const bool is_rfc3686, u32 *nonce, - const u32 ctx1_iv_off, const bool is_qi) + const u32 ctx1_iv_off, const bool is_qi, int era) { /* Note: Context registers are saved. */ - init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce); + init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce, era); /* Class 2 operation */ append_operation(desc, adata->algtype | OP_ALG_AS_INITFINAL | @@ -397,11 +418,23 @@ void cnstr_shdsc_aead_decap(u32 * const desc, struct alginfo *cdata, } /* Read and write assoclen bytes */ - append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); - if (geniv) - append_math_add_imm_u32(desc, VARSEQOUTLEN, REG3, IMM, ivsize); - else - append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); + if (is_qi || era < 3) { + append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); + if (geniv) + append_math_add_imm_u32(desc, VARSEQOUTLEN, REG3, IMM, + ivsize); + else + append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, + CAAM_CMD_SZ); + } else { + append_math_add(desc, VARSEQINLEN, ZERO, DPOVRD, CAAM_CMD_SZ); + if (geniv) + append_math_add_imm_u32(desc, VARSEQOUTLEN, DPOVRD, IMM, + ivsize); + else + append_math_add(desc, VARSEQOUTLEN, ZERO, DPOVRD, + CAAM_CMD_SZ); + } /* Skip assoc data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); @@ -456,29 +489,29 @@ EXPORT_SYMBOL(cnstr_shdsc_aead_decap); * @cdata: pointer to block cipher transform definitions * Valid algorithm values - one of OP_ALG_ALGSEL_{AES, DES, 3DES} ANDed * with OP_ALG_AAI_CBC or OP_ALG_AAI_CTR_MOD128. - * @adata: pointer to authentication transform definitions. Note that since a - * split key is to be used, the size of the split key itself is - * specified. Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, - * SHA224, SHA256, SHA384, SHA512} ANDed with OP_ALG_AAI_HMAC_PRECOMP. + * @adata: pointer to authentication transform definitions. + * A split key is required for SEC Era < 6; the size of the split key + * is specified in this case. Valid algorithm values - one of + * OP_ALG_ALGSEL_{MD5, SHA1, SHA224, SHA256, SHA384, SHA512} ANDed + * with OP_ALG_AAI_HMAC_PRECOMP. * @ivsize: initialization vector size * @icvsize: integrity check value (ICV) size (truncated or full) * @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template * @nonce: pointer to rfc3686 nonce * @ctx1_iv_off: IV offset in CONTEXT1 register * @is_qi: true when called from caam/qi - * - * Note: Requires an MDHA split key. + * @era: SEC Era */ void cnstr_shdsc_aead_givencap(u32 * const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int ivsize, unsigned int icvsize, const bool is_rfc3686, u32 *nonce, const u32 ctx1_iv_off, - const bool is_qi) + const bool is_qi, int era) { u32 geniv, moveiv; /* Note: Context registers are saved. */ - init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce); + init_sh_desc_key_aead(desc, cdata, adata, is_rfc3686, nonce, era); if (is_qi) { u32 *wait_load_cmd; @@ -528,8 +561,13 @@ copy_iv: OP_ALG_ENCRYPT); /* Read and write assoclen bytes */ - append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); - append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); + if (is_qi || era < 3) { + append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ); + append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ); + } else { + append_math_add(desc, VARSEQINLEN, ZERO, DPOVRD, CAAM_CMD_SZ); + append_math_add(desc, VARSEQOUTLEN, ZERO, DPOVRD, CAAM_CMD_SZ); + } /* Skip assoc data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); diff --git a/drivers/crypto/caam/caamalg_desc.h b/drivers/crypto/caam/caamalg_desc.h index 6b436f6..3899e91 100644 --- a/drivers/crypto/caam/caamalg_desc.h +++ b/drivers/crypto/caam/caamalg_desc.h @@ -51,28 +51,28 @@ 15 * CAAM_CMD_SZ) void cnstr_shdsc_aead_null_encap(u32 * const desc, struct alginfo *adata, - unsigned int icvsize); + unsigned int icvsize, int era); void cnstr_shdsc_aead_null_decap(u32 * const desc, struct alginfo *adata, - unsigned int icvsize); + unsigned int icvsize, int era); void cnstr_shdsc_aead_encap(u32 * const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int ivsize, unsigned int icvsize, const bool is_rfc3686, u32 *nonce, const u32 ctx1_iv_off, - const bool is_qi); + const bool is_qi, int era); void cnstr_shdsc_aead_decap(u32 * const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int ivsize, unsigned int icvsize, const bool geniv, const bool is_rfc3686, u32 *nonce, - const u32 ctx1_iv_off, const bool is_qi); + const u32 ctx1_iv_off, const bool is_qi, int era); void cnstr_shdsc_aead_givencap(u32 * const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int ivsize, unsigned int icvsize, const bool is_rfc3686, u32 *nonce, const u32 ctx1_iv_off, - const bool is_qi); + const bool is_qi, int era); void cnstr_shdsc_tls_encap(u32 *const desc, struct alginfo *cdata, struct alginfo *adata, unsigned int assoclen, diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index d6a9b0c..1369018 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -74,6 +74,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead) const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CTR_MOD128); const bool is_rfc3686 = alg->caam.rfc3686; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent); if (!ctx->cdata.keylen || !ctx->authsize) return 0; @@ -124,7 +125,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead) cnstr_shdsc_aead_encap(ctx->sh_desc_enc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, is_rfc3686, nonce, - ctx1_iv_off, true); + ctx1_iv_off, true, ctrlpriv->era); skip_enc: /* aead_decrypt shared descriptor */ @@ -149,7 +150,8 @@ skip_enc: cnstr_shdsc_aead_decap(ctx->sh_desc_dec, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, alg->caam.geniv, - is_rfc3686, nonce, ctx1_iv_off, true); + is_rfc3686, nonce, ctx1_iv_off, true, + ctrlpriv->era); if (!alg->caam.geniv) goto skip_givenc; @@ -176,7 +178,7 @@ skip_enc: cnstr_shdsc_aead_givencap(ctx->sh_desc_enc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, is_rfc3686, nonce, - ctx1_iv_off, true); + ctx1_iv_off, true, ctrlpriv->era); skip_givenc: return 0; @@ -197,6 +199,7 @@ static int aead_setkey(struct crypto_aead *aead, const u8 *key, { struct caam_ctx *ctx = crypto_aead_ctx(aead); struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); struct crypto_authenc_keys keys; int ret = 0; @@ -211,6 +214,27 @@ static int aead_setkey(struct crypto_aead *aead, const u8 *key, DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); #endif + /* + * If DKP is supported, use it in the shared descriptor to generate + * the split key. + */ + if (ctrlpriv->era >= 6) { + ctx->adata.keylen = keys.authkeylen; + ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype & + OP_ALG_ALGSEL_MASK); + + if (ctx->adata.keylen_pad + keys.enckeylen > CAAM_MAX_KEY_SIZE) + goto badkey; + + memcpy(ctx->key, keys.authkey, keys.authkeylen); + memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, + keys.enckeylen); + dma_sync_single_for_device(jrdev, ctx->key_dma, + ctx->adata.keylen_pad + + keys.enckeylen, DMA_TO_DEVICE); + goto skip_split_key; + } + ret = gen_split_key(jrdev, ctx->key, &ctx->adata, keys.authkey, keys.authkeylen, CAAM_MAX_KEY_SIZE - keys.enckeylen); @@ -227,6 +251,7 @@ static int aead_setkey(struct crypto_aead *aead, const u8 *key, ctx->adata.keylen_pad + keys.enckeylen, 1); #endif +skip_split_key: ctx->cdata.keylen = keys.enckeylen; ret = aead_set_sh_desc(aead); diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index 616720a..877446c 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -241,7 +241,8 @@ static inline int ctx_map_to_sec4_sg(struct device *jrdev, * read and write to seqout */ static inline void ahash_gen_sh_desc(u32 *desc, u32 state, int digestsize, - struct caam_hash_ctx *ctx, bool import_ctx) + struct caam_hash_ctx *ctx, bool import_ctx, + int era) { u32 op = ctx->adata.algtype; u32 *skip_key_load; @@ -254,9 +255,12 @@ static inline void ahash_gen_sh_desc(u32 *desc, u32 state, int digestsize, skip_key_load = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL | JUMP_COND_SHRD); - append_key_as_imm(desc, ctx->key, ctx->adata.keylen_pad, - ctx->adata.keylen, CLASS_2 | - KEY_DEST_MDHA_SPLIT | KEY_ENC); + if (era < 6) + append_key_as_imm(desc, ctx->key, ctx->adata.keylen_pad, + ctx->adata.keylen, CLASS_2 | + KEY_DEST_MDHA_SPLIT | KEY_ENC); + else + append_proto_dkp(desc, &ctx->adata); set_jump_tgt_here(desc, skip_key_load); @@ -289,11 +293,15 @@ static int ahash_set_sh_desc(struct crypto_ahash *ahash) struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash); int digestsize = crypto_ahash_digestsize(ahash); struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); u32 *desc; + ctx->adata.key_virt = ctx->key; + /* ahash_update shared descriptor */ desc = ctx->sh_desc_update; - ahash_gen_sh_desc(desc, OP_ALG_AS_UPDATE, ctx->ctx_len, ctx, true); + ahash_gen_sh_desc(desc, OP_ALG_AS_UPDATE, ctx->ctx_len, ctx, true, + ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_update_dma, desc_bytes(desc), DMA_TO_DEVICE); #ifdef DEBUG @@ -304,7 +312,8 @@ static int ahash_set_sh_desc(struct crypto_ahash *ahash) /* ahash_update_first shared descriptor */ desc = ctx->sh_desc_update_first; - ahash_gen_sh_desc(desc, OP_ALG_AS_INIT, ctx->ctx_len, ctx, false); + ahash_gen_sh_desc(desc, OP_ALG_AS_INIT, ctx->ctx_len, ctx, false, + ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_update_first_dma, desc_bytes(desc), DMA_TO_DEVICE); #ifdef DEBUG @@ -315,7 +324,8 @@ static int ahash_set_sh_desc(struct crypto_ahash *ahash) /* ahash_final shared descriptor */ desc = ctx->sh_desc_fin; - ahash_gen_sh_desc(desc, OP_ALG_AS_FINALIZE, digestsize, ctx, true); + ahash_gen_sh_desc(desc, OP_ALG_AS_FINALIZE, digestsize, ctx, true, + ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_fin_dma, desc_bytes(desc), DMA_TO_DEVICE); #ifdef DEBUG @@ -326,7 +336,8 @@ static int ahash_set_sh_desc(struct crypto_ahash *ahash) /* ahash_digest shared descriptor */ desc = ctx->sh_desc_digest; - ahash_gen_sh_desc(desc, OP_ALG_AS_INITFINAL, digestsize, ctx, false); + ahash_gen_sh_desc(desc, OP_ALG_AS_INITFINAL, digestsize, ctx, false, + ctrlpriv->era); dma_sync_single_for_device(jrdev, ctx->sh_desc_digest_dma, desc_bytes(desc), DMA_TO_DEVICE); #ifdef DEBUG @@ -421,6 +432,7 @@ static int ahash_setkey(struct crypto_ahash *ahash, struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash); int blocksize = crypto_tfm_alg_blocksize(&ahash->base); int digestsize = crypto_ahash_digestsize(ahash); + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent); int ret; u8 *hashed_key = NULL; @@ -441,16 +453,26 @@ static int ahash_setkey(struct crypto_ahash *ahash, key = hashed_key; } - ret = gen_split_key(ctx->jrdev, ctx->key, &ctx->adata, key, keylen, - CAAM_MAX_HASH_KEY_SIZE); - if (ret) - goto bad_free_key; + /* + * If DKP is supported, use it in the shared descriptor to generate + * the split key. + */ + if (ctrlpriv->era >= 6) { + ctx->adata.key_inline = true; + ctx->adata.keylen = keylen; + ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype & + OP_ALG_ALGSEL_MASK); -#ifdef DEBUG - print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ", - DUMP_PREFIX_ADDRESS, 16, 4, ctx->key, - ctx->adata.keylen_pad, 1); -#endif + if (ctx->adata.keylen_pad > CAAM_MAX_HASH_KEY_SIZE) + goto bad_free_key; + + memcpy(ctx->key, key, keylen); + } else { + ret = gen_split_key(ctx->jrdev, ctx->key, &ctx->adata, key, + keylen, CAAM_MAX_HASH_KEY_SIZE); + if (ret) + goto bad_free_key; + } kfree(hashed_key); return ahash_set_sh_desc(ahash); diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h index a8c3be7..5fe5123 100644 --- a/drivers/crypto/caam/desc.h +++ b/drivers/crypto/caam/desc.h @@ -446,6 +446,18 @@ #define OP_PCLID_DSAVERIFY (0x16 << OP_PCLID_SHIFT) #define OP_PCLID_RSAENC_PUBKEY (0x18 << OP_PCLID_SHIFT) #define OP_PCLID_RSADEC_PRVKEY (0x19 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_MD5 (0x20 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_SHA1 (0x21 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_SHA224 (0x22 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_SHA256 (0x23 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_SHA384 (0x24 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_SHA512 (0x25 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_RIF_MD5 (0x60 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_RIF_SHA1 (0x61 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_RIF_SHA224 (0x62 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_RIF_SHA256 (0x63 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_RIF_SHA384 (0x64 << OP_PCLID_SHIFT) +#define OP_PCLID_DKP_RIF_SHA512 (0x65 << OP_PCLID_SHIFT) /* Assuming OP_TYPE = OP_TYPE_DECAP_PROTOCOL/ENCAP_PROTOCOL */ #define OP_PCLID_IPSEC (0x01 << OP_PCLID_SHIFT) @@ -1095,6 +1107,22 @@ /* MacSec protinfos */ #define OP_PCL_MACSEC 0x0001 +/* Derived Key Protocol (DKP) Protinfo */ +#define OP_PCL_DKP_SRC_SHIFT 14 +#define OP_PCL_DKP_SRC_MASK (3 << OP_PCL_DKP_SRC_SHIFT) +#define OP_PCL_DKP_SRC_IMM (0 << OP_PCL_DKP_SRC_SHIFT) +#define OP_PCL_DKP_SRC_SEQ (1 << OP_PCL_DKP_SRC_SHIFT) +#define OP_PCL_DKP_SRC_PTR (2 << OP_PCL_DKP_SRC_SHIFT) +#define OP_PCL_DKP_SRC_SGF (3 << OP_PCL_DKP_SRC_SHIFT) +#define OP_PCL_DKP_DST_SHIFT 12 +#define OP_PCL_DKP_DST_MASK (3 << OP_PCL_DKP_DST_SHIFT) +#define OP_PCL_DKP_DST_IMM (0 << OP_PCL_DKP_DST_SHIFT) +#define OP_PCL_DKP_DST_SEQ (1 << OP_PCL_DKP_DST_SHIFT) +#define OP_PCL_DKP_DST_PTR (2 << OP_PCL_DKP_DST_SHIFT) +#define OP_PCL_DKP_DST_SGF (3 << OP_PCL_DKP_DST_SHIFT) +#define OP_PCL_DKP_KEY_SHIFT 0 +#define OP_PCL_DKP_KEY_MASK (0xfff << OP_PCL_DKP_KEY_SHIFT) + /* PKI unidirectional protocol protinfo bits */ #define OP_PCL_PKPROT_TEST 0x0008 #define OP_PCL_PKPROT_DECRYPT 0x0004 @@ -1455,6 +1483,7 @@ #define MATH_DEST_REG1 (0x01 << MATH_DEST_SHIFT) #define MATH_DEST_REG2 (0x02 << MATH_DEST_SHIFT) #define MATH_DEST_REG3 (0x03 << MATH_DEST_SHIFT) +#define MATH_DEST_DPOVRD (0x07 << MATH_DEST_SHIFT) #define MATH_DEST_SEQINLEN (0x08 << MATH_DEST_SHIFT) #define MATH_DEST_SEQOUTLEN (0x09 << MATH_DEST_SHIFT) #define MATH_DEST_VARSEQINLEN (0x0a << MATH_DEST_SHIFT) diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h index 2d9dbec..ae6ba2c 100644 --- a/drivers/crypto/caam/desc_constr.h +++ b/drivers/crypto/caam/desc_constr.h @@ -496,4 +496,45 @@ static inline int desc_inline_query(unsigned int sd_base_len, return (rem_bytes >= 0) ? 0 : -1; } +/** + * append_proto_dkp - Derived Key Protocol (DKP): key -> split key + * @desc: pointer to buffer used for descriptor construction + * @adata: pointer to authentication transform definitions. + * keylen should be the length of initial key, while keylen_pad + * the length of the derived (split) key. + * Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, SHA224, + * SHA256, SHA384, SHA512}. + */ +static inline void append_proto_dkp(u32 * const desc, struct alginfo *adata) +{ + u32 protid; + + /* + * Quick & dirty translation from OP_ALG_ALGSEL_{MD5, SHA*} + * to OP_PCLID_DKP_{MD5, SHA*} + */ + protid = (adata->algtype & OP_ALG_ALGSEL_SUBMASK) | + (0x20 << OP_ALG_ALGSEL_SHIFT); + + if (adata->key_inline) { + int words; + + append_operation(desc, OP_TYPE_UNI_PROTOCOL | protid | + OP_PCL_DKP_SRC_IMM | OP_PCL_DKP_DST_IMM | + adata->keylen); + append_data(desc, adata->key_virt, adata->keylen); + + /* Reserve space in descriptor buffer for the derived key */ + words = (ALIGN(adata->keylen_pad, CAAM_CMD_SZ) - + ALIGN(adata->keylen, CAAM_CMD_SZ)) / CAAM_CMD_SZ; + if (words) + (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + words); + } else { + append_operation(desc, OP_TYPE_UNI_PROTOCOL | protid | + OP_PCL_DKP_SRC_PTR | OP_PCL_DKP_DST_PTR | + adata->keylen); + append_ptr(desc, adata->key_dma); + } +} + #endif /* DESC_CONSTR_H */ |