@@ -441,6 +441,9 @@ sym_session_configure(struct roc_cpt *roc_cpt, int driver_id,
sess_priv = priv;
switch (ret) {
+ case CNXK_CPT_CIPHER:
+ ret = fill_sess_cipher(xform, sess_priv);
+ break;
default:
ret = -1;
}
@@ -28,4 +28,390 @@ struct cnxk_se_sess {
struct roc_se_ctx roc_se_ctx;
} __rte_cache_aligned;
+static uint8_t zuc_d[32] = {0x44, 0xD7, 0x26, 0xBC, 0x62, 0x6B, 0x13, 0x5E,
+ 0x57, 0x89, 0x35, 0xE2, 0x71, 0x35, 0x09, 0xAF,
+ 0x4D, 0x78, 0x2F, 0x13, 0x6B, 0xC4, 0x1A, 0xF1,
+ 0x5E, 0x26, 0x3C, 0x4D, 0x78, 0x9A, 0x47, 0xAC};
+
+static __rte_always_inline void
+gen_key_snow3g(const uint8_t *ck, uint32_t *keyx)
+{
+ int i, base;
+
+ for (i = 0; i < 4; i++) {
+ base = 4 * i;
+ keyx[3 - i] = (ck[base] << 24) | (ck[base + 1] << 16) |
+ (ck[base + 2] << 8) | (ck[base + 3]);
+ keyx[3 - i] = rte_cpu_to_be_32(keyx[3 - i]);
+ }
+}
+
+static __rte_always_inline void
+cpt_fc_salt_update(struct roc_se_ctx *se_ctx, uint8_t *salt)
+{
+ struct roc_se_context *fctx = &se_ctx->se_ctx.fctx;
+ memcpy(fctx->enc.encr_iv, salt, 4);
+}
+
+static __rte_always_inline int
+cpt_fc_ciph_validate_key_aes(uint16_t key_len)
+{
+ switch (key_len) {
+ case 16:
+ case 24:
+ case 32:
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+static __rte_always_inline int
+cpt_fc_ciph_set_type(roc_se_cipher_type type, struct roc_se_ctx *ctx,
+ uint16_t key_len)
+{
+ int fc_type = 0;
+ switch (type) {
+ case ROC_SE_PASSTHROUGH:
+ fc_type = ROC_SE_FC_GEN;
+ break;
+ case ROC_SE_DES3_CBC:
+ case ROC_SE_DES3_ECB:
+ fc_type = ROC_SE_FC_GEN;
+ break;
+ case ROC_SE_AES_CBC:
+ case ROC_SE_AES_ECB:
+ case ROC_SE_AES_CFB:
+ case ROC_SE_AES_CTR:
+ case ROC_SE_AES_GCM:
+ if (unlikely(cpt_fc_ciph_validate_key_aes(key_len) != 0))
+ return -1;
+ fc_type = ROC_SE_FC_GEN;
+ break;
+ case ROC_SE_CHACHA20:
+ fc_type = ROC_SE_FC_GEN;
+ break;
+ case ROC_SE_AES_XTS:
+ key_len = key_len / 2;
+ if (unlikely(key_len == 24)) {
+ CPT_LOG_DP_ERR("Invalid AES key len for XTS");
+ return -1;
+ }
+ if (unlikely(cpt_fc_ciph_validate_key_aes(key_len) != 0))
+ return -1;
+ fc_type = ROC_SE_FC_GEN;
+ break;
+ case ROC_SE_ZUC_EEA3:
+ case ROC_SE_SNOW3G_UEA2:
+ if (unlikely(key_len != 16))
+ return -1;
+ /* No support for AEAD yet */
+ if (unlikely(ctx->hash_type))
+ return -1;
+ fc_type = ROC_SE_PDCP;
+ break;
+ case ROC_SE_KASUMI_F8_CBC:
+ case ROC_SE_KASUMI_F8_ECB:
+ if (unlikely(key_len != 16))
+ return -1;
+ /* No support for AEAD yet */
+ if (unlikely(ctx->hash_type))
+ return -1;
+ fc_type = ROC_SE_KASUMI;
+ break;
+ default:
+ return -1;
+ }
+
+ ctx->fc_type = fc_type;
+ return 0;
+}
+
+static __rte_always_inline void
+cpt_fc_ciph_set_key_passthrough(struct roc_se_ctx *se_ctx,
+ struct roc_se_context *fctx)
+{
+ se_ctx->enc_cipher = 0;
+ fctx->enc.enc_cipher = 0;
+}
+
+static __rte_always_inline void
+cpt_fc_ciph_set_key_set_aes_key_type(struct roc_se_context *fctx,
+ uint16_t key_len)
+{
+ roc_se_aes_type aes_key_type = 0;
+ switch (key_len) {
+ case 16:
+ aes_key_type = ROC_SE_AES_128_BIT;
+ break;
+ case 24:
+ aes_key_type = ROC_SE_AES_192_BIT;
+ break;
+ case 32:
+ aes_key_type = ROC_SE_AES_256_BIT;
+ break;
+ default:
+ /* This should not happen */
+ CPT_LOG_DP_ERR("Invalid AES key len");
+ return;
+ }
+ fctx->enc.aes_key = aes_key_type;
+}
+
+static __rte_always_inline void
+cpt_fc_ciph_set_key_snow3g_uea2(struct roc_se_ctx *se_ctx, const uint8_t *key,
+ uint16_t key_len)
+{
+ struct roc_se_zuc_snow3g_ctx *zs_ctx = &se_ctx->se_ctx.zs_ctx;
+ uint32_t keyx[4];
+
+ se_ctx->pdcp_alg_type = ROC_SE_PDCP_ALG_TYPE_SNOW3G;
+ gen_key_snow3g(key, keyx);
+ memcpy(zs_ctx->ci_key, keyx, key_len);
+ se_ctx->zsk_flags = 0;
+}
+
+static __rte_always_inline void
+cpt_fc_ciph_set_key_zuc_eea3(struct roc_se_ctx *se_ctx, const uint8_t *key,
+ uint16_t key_len)
+{
+ struct roc_se_zuc_snow3g_ctx *zs_ctx = &se_ctx->se_ctx.zs_ctx;
+
+ se_ctx->pdcp_alg_type = ROC_SE_PDCP_ALG_TYPE_ZUC;
+ memcpy(zs_ctx->ci_key, key, key_len);
+ memcpy(zs_ctx->zuc_const, zuc_d, 32);
+ se_ctx->zsk_flags = 0;
+}
+
+static __rte_always_inline void
+cpt_fc_ciph_set_key_kasumi_f8_ecb(struct roc_se_ctx *se_ctx, const uint8_t *key,
+ uint16_t key_len)
+{
+ struct roc_se_kasumi_ctx *k_ctx = &se_ctx->se_ctx.k_ctx;
+
+ se_ctx->k_ecb = 1;
+ memcpy(k_ctx->ci_key, key, key_len);
+ se_ctx->zsk_flags = 0;
+}
+
+static __rte_always_inline void
+cpt_fc_ciph_set_key_kasumi_f8_cbc(struct roc_se_ctx *se_ctx, const uint8_t *key,
+ uint16_t key_len)
+{
+ struct roc_se_kasumi_ctx *k_ctx = &se_ctx->se_ctx.k_ctx;
+
+ memcpy(k_ctx->ci_key, key, key_len);
+ se_ctx->zsk_flags = 0;
+}
+
+static __rte_always_inline int
+cpt_fc_ciph_set_key(struct roc_se_ctx *se_ctx, roc_se_cipher_type type,
+ const uint8_t *key, uint16_t key_len, uint8_t *salt)
+{
+ struct roc_se_context *fctx = &se_ctx->se_ctx.fctx;
+ int ret;
+
+ ret = cpt_fc_ciph_set_type(type, se_ctx, key_len);
+ if (unlikely(ret))
+ return -1;
+
+ if (se_ctx->fc_type == ROC_SE_FC_GEN) {
+ /*
+ * We need to always say IV is from DPTR as user can
+ * sometimes iverride IV per operation.
+ */
+ fctx->enc.iv_source = ROC_SE_FROM_DPTR;
+
+ if (se_ctx->auth_key_len > 64)
+ return -1;
+ }
+
+ switch (type) {
+ case ROC_SE_PASSTHROUGH:
+ cpt_fc_ciph_set_key_passthrough(se_ctx, fctx);
+ goto success;
+ case ROC_SE_DES3_CBC:
+ /* CPT performs DES using 3DES with the 8B DES-key
+ * replicated 2 more times to match the 24B 3DES-key.
+ * Eg. If org. key is "0x0a 0x0b", then new key is
+ * "0x0a 0x0b 0x0a 0x0b 0x0a 0x0b"
+ */
+ if (key_len == 8) {
+ /* Skipping the first 8B as it will be copied
+ * in the regular code flow
+ */
+ memcpy(fctx->enc.encr_key + key_len, key, key_len);
+ memcpy(fctx->enc.encr_key + 2 * key_len, key, key_len);
+ }
+ break;
+ case ROC_SE_DES3_ECB:
+ /* For DES3_ECB IV need to be from CTX. */
+ fctx->enc.iv_source = ROC_SE_FROM_CTX;
+ break;
+ case ROC_SE_AES_CBC:
+ case ROC_SE_AES_ECB:
+ case ROC_SE_AES_CFB:
+ case ROC_SE_AES_CTR:
+ case ROC_SE_CHACHA20:
+ cpt_fc_ciph_set_key_set_aes_key_type(fctx, key_len);
+ break;
+ case ROC_SE_AES_GCM:
+ /* Even though iv source is from dptr,
+ * aes_gcm salt is taken from ctx
+ */
+ if (salt) {
+ memcpy(fctx->enc.encr_iv, salt, 4);
+ /* Assuming it was just salt update
+ * and nothing else
+ */
+ if (!key)
+ goto success;
+ }
+ cpt_fc_ciph_set_key_set_aes_key_type(fctx, key_len);
+ break;
+ case ROC_SE_AES_XTS:
+ key_len = key_len / 2;
+ cpt_fc_ciph_set_key_set_aes_key_type(fctx, key_len);
+
+ /* Copy key2 for XTS into ipad */
+ memset(fctx->hmac.ipad, 0, sizeof(fctx->hmac.ipad));
+ memcpy(fctx->hmac.ipad, &key[key_len], key_len);
+ break;
+ case ROC_SE_SNOW3G_UEA2:
+ cpt_fc_ciph_set_key_snow3g_uea2(se_ctx, key, key_len);
+ goto success;
+ case ROC_SE_ZUC_EEA3:
+ cpt_fc_ciph_set_key_zuc_eea3(se_ctx, key, key_len);
+ goto success;
+ case ROC_SE_KASUMI_F8_ECB:
+ cpt_fc_ciph_set_key_kasumi_f8_ecb(se_ctx, key, key_len);
+ goto success;
+ case ROC_SE_KASUMI_F8_CBC:
+ cpt_fc_ciph_set_key_kasumi_f8_cbc(se_ctx, key, key_len);
+ goto success;
+ default:
+ return -1;
+ }
+
+ /* Only for ROC_SE_FC_GEN case */
+
+ /* For GMAC auth, cipher must be NULL */
+ if (se_ctx->hash_type != ROC_SE_GMAC_TYPE)
+ fctx->enc.enc_cipher = type;
+
+ memcpy(fctx->enc.encr_key, key, key_len);
+
+success:
+ se_ctx->enc_cipher = type;
+
+ return 0;
+}
+
+static __rte_always_inline int
+fill_sess_cipher(struct rte_crypto_sym_xform *xform, struct cnxk_se_sess *sess)
+{
+ struct rte_crypto_cipher_xform *c_form;
+ roc_se_cipher_type enc_type = 0; /* NULL Cipher type */
+ uint32_t cipher_key_len = 0;
+ uint8_t zsk_flag = 0, aes_ctr = 0, is_null = 0;
+
+ c_form = &xform->cipher;
+
+ if (c_form->op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
+ sess->cpt_op |= ROC_SE_OP_CIPHER_ENCRYPT;
+ else if (c_form->op == RTE_CRYPTO_CIPHER_OP_DECRYPT) {
+ sess->cpt_op |= ROC_SE_OP_CIPHER_DECRYPT;
+ if (xform->next != NULL &&
+ xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
+ /* Perform decryption followed by auth verify */
+ sess->roc_se_ctx.template_w4.s.opcode_minor =
+ ROC_SE_FC_MINOR_OP_HMAC_FIRST;
+ }
+ } else {
+ CPT_LOG_DP_ERR("Unknown cipher operation\n");
+ return -1;
+ }
+
+ switch (c_form->algo) {
+ case RTE_CRYPTO_CIPHER_AES_CBC:
+ enc_type = ROC_SE_AES_CBC;
+ cipher_key_len = 16;
+ break;
+ case RTE_CRYPTO_CIPHER_3DES_CBC:
+ enc_type = ROC_SE_DES3_CBC;
+ cipher_key_len = 24;
+ break;
+ case RTE_CRYPTO_CIPHER_DES_CBC:
+ /* DES is implemented using 3DES in hardware */
+ enc_type = ROC_SE_DES3_CBC;
+ cipher_key_len = 8;
+ break;
+ case RTE_CRYPTO_CIPHER_AES_CTR:
+ enc_type = ROC_SE_AES_CTR;
+ cipher_key_len = 16;
+ aes_ctr = 1;
+ break;
+ case RTE_CRYPTO_CIPHER_NULL:
+ enc_type = 0;
+ is_null = 1;
+ break;
+ case RTE_CRYPTO_CIPHER_KASUMI_F8:
+ enc_type = ROC_SE_KASUMI_F8_ECB;
+ cipher_key_len = 16;
+ zsk_flag = ROC_SE_K_F8;
+ break;
+ case RTE_CRYPTO_CIPHER_SNOW3G_UEA2:
+ enc_type = ROC_SE_SNOW3G_UEA2;
+ cipher_key_len = 16;
+ zsk_flag = ROC_SE_ZS_EA;
+ break;
+ case RTE_CRYPTO_CIPHER_ZUC_EEA3:
+ enc_type = ROC_SE_ZUC_EEA3;
+ cipher_key_len = 16;
+ zsk_flag = ROC_SE_ZS_EA;
+ break;
+ case RTE_CRYPTO_CIPHER_AES_XTS:
+ enc_type = ROC_SE_AES_XTS;
+ cipher_key_len = 16;
+ break;
+ case RTE_CRYPTO_CIPHER_3DES_ECB:
+ enc_type = ROC_SE_DES3_ECB;
+ cipher_key_len = 24;
+ break;
+ case RTE_CRYPTO_CIPHER_AES_ECB:
+ enc_type = ROC_SE_AES_ECB;
+ cipher_key_len = 16;
+ break;
+ case RTE_CRYPTO_CIPHER_3DES_CTR:
+ case RTE_CRYPTO_CIPHER_AES_F8:
+ case RTE_CRYPTO_CIPHER_ARC4:
+ CPT_LOG_DP_ERR("Crypto: Unsupported cipher algo %u",
+ c_form->algo);
+ return -1;
+ default:
+ CPT_LOG_DP_ERR("Crypto: Undefined cipher algo %u specified",
+ c_form->algo);
+ return -1;
+ }
+
+ if (c_form->key.length < cipher_key_len) {
+ CPT_LOG_DP_ERR("Invalid cipher params keylen %u",
+ c_form->key.length);
+ return -1;
+ }
+
+ sess->zsk_flag = zsk_flag;
+ sess->aes_gcm = 0;
+ sess->aes_ctr = aes_ctr;
+ sess->iv_offset = c_form->iv.offset;
+ sess->iv_length = c_form->iv.length;
+ sess->is_null = is_null;
+
+ if (unlikely(cpt_fc_ciph_set_key(&sess->roc_se_ctx, enc_type,
+ c_form->key.data, c_form->key.length,
+ NULL)))
+ return -1;
+
+ return 0;
+}
#endif /*_CNXK_SE_H_ */