From: Fan Zhang Date: Wed, 15 May 2019 16:09:11 +0000 (+0100) Subject: vhost/crypto: fix inferred misuse of enum X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4349d412afe4ec25b43867f4d6d4672156cb5766;p=dpdk.git vhost/crypto: fix inferred misuse of enum This patch fixes the inferred misuse of enum of crypto algorithms. Coverity issue: 325879 Fixes: e80a98708166 ("vhost/crypto: add session message handler") Cc: stable@dpdk.org Signed-off-by: Fan Zhang Acked-by: Marko Kovacevic Reviewed-by: Maxime Coquelin --- diff --git a/lib/librte_vhost/vhost_crypto.c b/lib/librte_vhost/vhost_crypto.c index 069b561087..8652a778a3 100644 --- a/lib/librte_vhost/vhost_crypto.c +++ b/lib/librte_vhost/vhost_crypto.c @@ -46,116 +46,107 @@ ((t)(uintptr_t)vhost_iova_to_vva(r->dev, r->vq, a, l, p)) static int -cipher_algo_transform(uint32_t virtio_cipher_algo) +cipher_algo_transform(uint32_t virtio_cipher_algo, + enum rte_crypto_cipher_algorithm *algo) { - int ret; - switch (virtio_cipher_algo) { case VIRTIO_CRYPTO_CIPHER_AES_CBC: - ret = RTE_CRYPTO_CIPHER_AES_CBC; + *algo = RTE_CRYPTO_CIPHER_AES_CBC; break; case VIRTIO_CRYPTO_CIPHER_AES_CTR: - ret = RTE_CRYPTO_CIPHER_AES_CTR; + *algo = RTE_CRYPTO_CIPHER_AES_CTR; break; case VIRTIO_CRYPTO_CIPHER_DES_ECB: - ret = -VIRTIO_CRYPTO_NOTSUPP; + *algo = -VIRTIO_CRYPTO_NOTSUPP; break; case VIRTIO_CRYPTO_CIPHER_DES_CBC: - ret = RTE_CRYPTO_CIPHER_DES_CBC; + *algo = RTE_CRYPTO_CIPHER_DES_CBC; break; case VIRTIO_CRYPTO_CIPHER_3DES_ECB: - ret = RTE_CRYPTO_CIPHER_3DES_ECB; + *algo = RTE_CRYPTO_CIPHER_3DES_ECB; break; case VIRTIO_CRYPTO_CIPHER_3DES_CBC: - ret = RTE_CRYPTO_CIPHER_3DES_CBC; + *algo = RTE_CRYPTO_CIPHER_3DES_CBC; break; case VIRTIO_CRYPTO_CIPHER_3DES_CTR: - ret = RTE_CRYPTO_CIPHER_3DES_CTR; + *algo = RTE_CRYPTO_CIPHER_3DES_CTR; break; case VIRTIO_CRYPTO_CIPHER_KASUMI_F8: - ret = RTE_CRYPTO_CIPHER_KASUMI_F8; + *algo = RTE_CRYPTO_CIPHER_KASUMI_F8; break; case VIRTIO_CRYPTO_CIPHER_SNOW3G_UEA2: - ret = RTE_CRYPTO_CIPHER_SNOW3G_UEA2; + *algo = RTE_CRYPTO_CIPHER_SNOW3G_UEA2; break; case VIRTIO_CRYPTO_CIPHER_AES_F8: - ret = RTE_CRYPTO_CIPHER_AES_F8; + *algo = RTE_CRYPTO_CIPHER_AES_F8; break; case VIRTIO_CRYPTO_CIPHER_AES_XTS: - ret = RTE_CRYPTO_CIPHER_AES_XTS; + *algo = RTE_CRYPTO_CIPHER_AES_XTS; break; case VIRTIO_CRYPTO_CIPHER_ZUC_EEA3: - ret = RTE_CRYPTO_CIPHER_ZUC_EEA3; + *algo = RTE_CRYPTO_CIPHER_ZUC_EEA3; break; default: - ret = -VIRTIO_CRYPTO_BADMSG; + return -VIRTIO_CRYPTO_BADMSG; break; } - return ret; + return 0; } static int -auth_algo_transform(uint32_t virtio_auth_algo) +auth_algo_transform(uint32_t virtio_auth_algo, + enum rte_crypto_auth_algorithm *algo) { - int ret; - switch (virtio_auth_algo) { - case VIRTIO_CRYPTO_NO_MAC: - ret = RTE_CRYPTO_AUTH_NULL; + *algo = RTE_CRYPTO_AUTH_NULL; break; case VIRTIO_CRYPTO_MAC_HMAC_MD5: - ret = RTE_CRYPTO_AUTH_MD5_HMAC; + *algo = RTE_CRYPTO_AUTH_MD5_HMAC; break; case VIRTIO_CRYPTO_MAC_HMAC_SHA1: - ret = RTE_CRYPTO_AUTH_SHA1_HMAC; + *algo = RTE_CRYPTO_AUTH_SHA1_HMAC; break; case VIRTIO_CRYPTO_MAC_HMAC_SHA_224: - ret = RTE_CRYPTO_AUTH_SHA224_HMAC; + *algo = RTE_CRYPTO_AUTH_SHA224_HMAC; break; case VIRTIO_CRYPTO_MAC_HMAC_SHA_256: - ret = RTE_CRYPTO_AUTH_SHA256_HMAC; + *algo = RTE_CRYPTO_AUTH_SHA256_HMAC; break; case VIRTIO_CRYPTO_MAC_HMAC_SHA_384: - ret = RTE_CRYPTO_AUTH_SHA384_HMAC; + *algo = RTE_CRYPTO_AUTH_SHA384_HMAC; break; case VIRTIO_CRYPTO_MAC_HMAC_SHA_512: - ret = RTE_CRYPTO_AUTH_SHA512_HMAC; - break; - case VIRTIO_CRYPTO_MAC_CMAC_3DES: - ret = -VIRTIO_CRYPTO_NOTSUPP; + *algo = RTE_CRYPTO_AUTH_SHA512_HMAC; break; case VIRTIO_CRYPTO_MAC_CMAC_AES: - ret = RTE_CRYPTO_AUTH_AES_CMAC; + *algo = RTE_CRYPTO_AUTH_AES_CMAC; break; case VIRTIO_CRYPTO_MAC_KASUMI_F9: - ret = RTE_CRYPTO_AUTH_KASUMI_F9; + *algo = RTE_CRYPTO_AUTH_KASUMI_F9; break; case VIRTIO_CRYPTO_MAC_SNOW3G_UIA2: - ret = RTE_CRYPTO_AUTH_SNOW3G_UIA2; + *algo = RTE_CRYPTO_AUTH_SNOW3G_UIA2; break; case VIRTIO_CRYPTO_MAC_GMAC_AES: - ret = RTE_CRYPTO_AUTH_AES_GMAC; - break; - case VIRTIO_CRYPTO_MAC_GMAC_TWOFISH: - ret = -VIRTIO_CRYPTO_NOTSUPP; + *algo = RTE_CRYPTO_AUTH_AES_GMAC; break; case VIRTIO_CRYPTO_MAC_CBCMAC_AES: - ret = RTE_CRYPTO_AUTH_AES_CBC_MAC; - break; - case VIRTIO_CRYPTO_MAC_CBCMAC_KASUMI_F9: - ret = -VIRTIO_CRYPTO_NOTSUPP; + *algo = RTE_CRYPTO_AUTH_AES_CBC_MAC; break; case VIRTIO_CRYPTO_MAC_XCBC_AES: - ret = RTE_CRYPTO_AUTH_AES_XCBC_MAC; + *algo = RTE_CRYPTO_AUTH_AES_XCBC_MAC; break; + case VIRTIO_CRYPTO_MAC_CMAC_3DES: + case VIRTIO_CRYPTO_MAC_GMAC_TWOFISH: + case VIRTIO_CRYPTO_MAC_CBCMAC_KASUMI_F9: + return -VIRTIO_CRYPTO_NOTSUPP; default: - ret = -VIRTIO_CRYPTO_BADMSG; - break; + return -VIRTIO_CRYPTO_BADMSG; } - return ret; + return 0; } static int get_iv_len(enum rte_crypto_cipher_algorithm algo) @@ -242,12 +233,11 @@ transform_cipher_param(struct rte_crypto_sym_xform *xform, { int ret; - ret = cipher_algo_transform(param->cipher_algo); + ret = cipher_algo_transform(param->cipher_algo, &xform->cipher.algo); if (unlikely(ret < 0)) return ret; xform->type = RTE_CRYPTO_SYM_XFORM_CIPHER; - xform->cipher.algo = (enum rte_crypto_cipher_algorithm)ret; xform->cipher.key.length = param->cipher_key_len; if (xform->cipher.key.length > 0) xform->cipher.key.data = param->cipher_key_buf; @@ -293,11 +283,11 @@ transform_chain_param(struct rte_crypto_sym_xform *xforms, } /* cipher */ - ret = cipher_algo_transform(param->cipher_algo); + ret = cipher_algo_transform(param->cipher_algo, + &xform_cipher->cipher.algo); if (unlikely(ret < 0)) return ret; xform_cipher->type = RTE_CRYPTO_SYM_XFORM_CIPHER; - xform_cipher->cipher.algo = (enum rte_crypto_cipher_algorithm)ret; xform_cipher->cipher.key.length = param->cipher_key_len; xform_cipher->cipher.key.data = param->cipher_key_buf; ret = get_iv_len(xform_cipher->cipher.algo); @@ -308,10 +298,9 @@ transform_chain_param(struct rte_crypto_sym_xform *xforms, /* auth */ xform_auth->type = RTE_CRYPTO_SYM_XFORM_AUTH; - ret = auth_algo_transform(param->hash_algo); + ret = auth_algo_transform(param->hash_algo, &xform_auth->auth.algo); if (unlikely(ret < 0)) return ret; - xform_auth->auth.algo = (enum rte_crypto_auth_algorithm)ret; xform_auth->auth.digest_length = param->digest_len; xform_auth->auth.key.length = param->auth_key_len; xform_auth->auth.key.data = param->auth_key_buf;