X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fcrypto%2Focteontx2%2Fotx2_ipsec_fp.h;h=a33041d77c7a58f695fa2217ca4f884990bcca86;hb=e863fe3a13da89787fdf3b5c590101a3c0f10af6;hp=bf4181ac9bde1a0c9d3dec13e201be8bc5cbb8c2;hpb=58002ff3d5751c6da9e5cbcc4df3bc384d451f14;p=dpdk.git

diff --git a/drivers/crypto/octeontx2/otx2_ipsec_fp.h b/drivers/crypto/octeontx2/otx2_ipsec_fp.h
index bf4181ac9b..a33041d77c 100644
--- a/drivers/crypto/octeontx2/otx2_ipsec_fp.h
+++ b/drivers/crypto/octeontx2/otx2_ipsec_fp.h
@@ -5,6 +5,78 @@
 #ifndef __OTX2_IPSEC_FP_H__
 #define __OTX2_IPSEC_FP_H__
 
+#include <rte_crypto_sym.h>
+#include <rte_security.h>
+
+/* Macros for anti replay and ESN */
+#define OTX2_IPSEC_MAX_REPLAY_WIN_SZ	1024
+#define OTX2_IPSEC_SAINDEX_SZ		4
+#define OTX2_IPSEC_SEQNO_LO		4
+
+#define OTX2_IPSEC_SEQNO_LO_INDEX	(RTE_ETHER_HDR_LEN + \
+					 OTX2_IPSEC_SAINDEX_SZ)
+
+#define OTX2_IPSEC_SEQNO_HI_INDEX	(OTX2_IPSEC_SEQNO_LO_INDEX + \
+					 OTX2_IPSEC_SEQNO_LO)
+
+enum {
+	OTX2_IPSEC_FP_SA_DIRECTION_INBOUND = 0,
+	OTX2_IPSEC_FP_SA_DIRECTION_OUTBOUND = 1,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_IP_VERSION_4 = 0,
+	OTX2_IPSEC_FP_SA_IP_VERSION_6 = 1,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_MODE_TRANSPORT = 0,
+	OTX2_IPSEC_FP_SA_MODE_TUNNEL = 1,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_PROTOCOL_AH = 0,
+	OTX2_IPSEC_FP_SA_PROTOCOL_ESP = 1,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_AES_KEY_LEN_128 = 1,
+	OTX2_IPSEC_FP_SA_AES_KEY_LEN_192 = 2,
+	OTX2_IPSEC_FP_SA_AES_KEY_LEN_256 = 3,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_ENC_NULL = 0,
+	OTX2_IPSEC_FP_SA_ENC_DES_CBC = 1,
+	OTX2_IPSEC_FP_SA_ENC_3DES_CBC = 2,
+	OTX2_IPSEC_FP_SA_ENC_AES_CBC = 3,
+	OTX2_IPSEC_FP_SA_ENC_AES_CTR = 4,
+	OTX2_IPSEC_FP_SA_ENC_AES_GCM = 5,
+	OTX2_IPSEC_FP_SA_ENC_AES_CCM = 6,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_AUTH_NULL = 0,
+	OTX2_IPSEC_FP_SA_AUTH_MD5 = 1,
+	OTX2_IPSEC_FP_SA_AUTH_SHA1 = 2,
+	OTX2_IPSEC_FP_SA_AUTH_SHA2_224 = 3,
+	OTX2_IPSEC_FP_SA_AUTH_SHA2_256 = 4,
+	OTX2_IPSEC_FP_SA_AUTH_SHA2_384 = 5,
+	OTX2_IPSEC_FP_SA_AUTH_SHA2_512 = 6,
+	OTX2_IPSEC_FP_SA_AUTH_AES_GMAC = 7,
+	OTX2_IPSEC_FP_SA_AUTH_AES_XCBC_128 = 8,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_FRAG_POST = 0,
+	OTX2_IPSEC_FP_SA_FRAG_PRE = 1,
+};
+
+enum {
+	OTX2_IPSEC_FP_SA_ENCAP_NONE = 0,
+	OTX2_IPSEC_FP_SA_ENCAP_UDP = 1,
+};
+
 struct otx2_ipsec_fp_sa_ctl {
 	rte_be32_t spi          : 32;
 	uint64_t exp_proto_inter_frag : 8;
@@ -24,6 +96,34 @@ struct otx2_ipsec_fp_sa_ctl {
 	uint64_t aes_key_len  : 2;
 };
 
+struct otx2_ipsec_fp_out_sa {
+	/* w0 */
+	struct otx2_ipsec_fp_sa_ctl ctl;
+
+	/* w1 */
+	uint8_t nonce[4];
+	uint16_t udp_src;
+	uint16_t udp_dst;
+
+	/* w2 */
+	uint32_t ip_src;
+	uint32_t ip_dst;
+
+	/* w3-w6 */
+	uint8_t cipher_key[32];
+
+	/* w7-w12 */
+	uint8_t hmac_key[48];
+};
+
+struct otx2_ipsec_replay {
+	rte_spinlock_t lock;
+	uint32_t winb;
+	uint32_t wint;
+	uint64_t base; /**< base of the anti-replay window */
+	uint64_t window[17]; /**< anti-replay window */
+};
+
 struct otx2_ipsec_fp_in_sa {
 	/* w0 */
 	struct otx2_ipsec_fp_sa_ctl ctl;
@@ -33,8 +133,8 @@ struct otx2_ipsec_fp_in_sa {
 	uint32_t unused;
 
 	/* w2 */
-	uint32_t esn_low;
 	uint32_t esn_hi;
+	uint32_t esn_low;
 
 	/* w3-w6 */
 	uint8_t cipher_key[32];
@@ -47,9 +147,227 @@ struct otx2_ipsec_fp_in_sa {
 		void *userdata;
 		uint64_t udata64;
 	};
+	union {
+		struct otx2_ipsec_replay *replay;
+		uint64_t replay64;
+	};
+	uint32_t replay_win_sz;
 
-	uint64_t reserved1;
-	uint64_t reserved2;
+	uint32_t reserved1;
 };
 
+static inline int
+ipsec_fp_xform_cipher_verify(struct rte_crypto_sym_xform *xform)
+{
+	if (xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
+		switch (xform->cipher.key.length) {
+		case 16:
+		case 24:
+		case 32:
+			break;
+		default:
+			return -ENOTSUP;
+		}
+		return 0;
+	}
+
+	return -ENOTSUP;
+}
+
+static inline int
+ipsec_fp_xform_auth_verify(struct rte_crypto_sym_xform *xform)
+{
+	uint16_t keylen = xform->auth.key.length;
+
+	if (xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC) {
+		if (keylen >= 20 && keylen <= 64)
+			return 0;
+	}
+
+	return -ENOTSUP;
+}
+
+static inline int
+ipsec_fp_xform_aead_verify(struct rte_security_ipsec_xform *ipsec,
+			   struct rte_crypto_sym_xform *xform)
+{
+	if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS &&
+	    xform->aead.op != RTE_CRYPTO_AEAD_OP_ENCRYPT)
+		return -EINVAL;
+
+	if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS &&
+	    xform->aead.op != RTE_CRYPTO_AEAD_OP_DECRYPT)
+		return -EINVAL;
+
+	if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+		switch (xform->aead.key.length) {
+		case 16:
+		case 24:
+		case 32:
+			break;
+		default:
+			return -EINVAL;
+		}
+		return 0;
+	}
+
+	return -ENOTSUP;
+}
+
+static inline int
+ipsec_fp_xform_verify(struct rte_security_ipsec_xform *ipsec,
+		      struct rte_crypto_sym_xform *xform)
+{
+	struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
+	int ret;
+
+	if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
+		return ipsec_fp_xform_aead_verify(ipsec, xform);
+
+	if (xform->next == NULL)
+		return -EINVAL;
+
+	if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
+		/* Ingress */
+		if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH ||
+		    xform->next->type != RTE_CRYPTO_SYM_XFORM_CIPHER)
+			return -EINVAL;
+		auth_xform = xform;
+		cipher_xform = xform->next;
+	} else {
+		/* Egress */
+		if (xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER ||
+		    xform->next->type != RTE_CRYPTO_SYM_XFORM_AUTH)
+			return -EINVAL;
+		cipher_xform = xform;
+		auth_xform = xform->next;
+	}
+
+	ret = ipsec_fp_xform_cipher_verify(cipher_xform);
+	if (ret)
+		return ret;
+
+	ret = ipsec_fp_xform_auth_verify(auth_xform);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static inline int
+ipsec_fp_sa_ctl_set(struct rte_security_ipsec_xform *ipsec,
+		    struct rte_crypto_sym_xform *xform,
+		    struct otx2_ipsec_fp_sa_ctl *ctl)
+{
+	struct rte_crypto_sym_xform *cipher_xform, *auth_xform;
+	int aes_key_len;
+
+	if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
+		ctl->direction = OTX2_IPSEC_FP_SA_DIRECTION_OUTBOUND;
+		cipher_xform = xform;
+		auth_xform = xform->next;
+	} else if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
+		ctl->direction = OTX2_IPSEC_FP_SA_DIRECTION_INBOUND;
+		auth_xform = xform;
+		cipher_xform = xform->next;
+	} else {
+		return -EINVAL;
+	}
+
+	if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
+		if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4)
+			ctl->outer_ip_ver = OTX2_IPSEC_FP_SA_IP_VERSION_4;
+		else if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV6)
+			ctl->outer_ip_ver = OTX2_IPSEC_FP_SA_IP_VERSION_6;
+		else
+			return -EINVAL;
+	}
+
+	ctl->inner_ip_ver = OTX2_IPSEC_FP_SA_IP_VERSION_4;
+
+	if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT)
+		ctl->ipsec_mode = OTX2_IPSEC_FP_SA_MODE_TRANSPORT;
+	else if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL)
+		ctl->ipsec_mode = OTX2_IPSEC_FP_SA_MODE_TUNNEL;
+	else
+		return -EINVAL;
+
+	if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_AH)
+		ctl->ipsec_proto = OTX2_IPSEC_FP_SA_PROTOCOL_AH;
+	else if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_ESP)
+		ctl->ipsec_proto = OTX2_IPSEC_FP_SA_PROTOCOL_ESP;
+	else
+		return -EINVAL;
+
+	if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+		if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+			ctl->enc_type = OTX2_IPSEC_FP_SA_ENC_AES_GCM;
+			aes_key_len = xform->aead.key.length;
+		} else {
+			return -ENOTSUP;
+		}
+	} else if (cipher_xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
+		ctl->enc_type = OTX2_IPSEC_FP_SA_ENC_AES_CBC;
+		aes_key_len = cipher_xform->cipher.key.length;
+	} else {
+		return -ENOTSUP;
+	}
+
+	switch (aes_key_len) {
+	case 16:
+		ctl->aes_key_len = OTX2_IPSEC_FP_SA_AES_KEY_LEN_128;
+		break;
+	case 24:
+		ctl->aes_key_len = OTX2_IPSEC_FP_SA_AES_KEY_LEN_192;
+		break;
+	case 32:
+		ctl->aes_key_len = OTX2_IPSEC_FP_SA_AES_KEY_LEN_256;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (xform->type != RTE_CRYPTO_SYM_XFORM_AEAD) {
+		switch (auth_xform->auth.algo) {
+		case RTE_CRYPTO_AUTH_NULL:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_NULL;
+			break;
+		case RTE_CRYPTO_AUTH_MD5_HMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_MD5;
+			break;
+		case RTE_CRYPTO_AUTH_SHA1_HMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_SHA1;
+			break;
+		case RTE_CRYPTO_AUTH_SHA224_HMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_SHA2_224;
+			break;
+		case RTE_CRYPTO_AUTH_SHA256_HMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_SHA2_256;
+			break;
+		case RTE_CRYPTO_AUTH_SHA384_HMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_SHA2_384;
+			break;
+		case RTE_CRYPTO_AUTH_SHA512_HMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_SHA2_512;
+			break;
+		case RTE_CRYPTO_AUTH_AES_GMAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_AES_GMAC;
+			break;
+		case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
+			ctl->auth_type = OTX2_IPSEC_FP_SA_AUTH_AES_XCBC_128;
+			break;
+		default:
+			return -ENOTSUP;
+		}
+	}
+
+	if (ipsec->options.esn == 1)
+		ctl->esn_en = 1;
+
+	ctl->spi = rte_cpu_to_be_32(ipsec->spi);
+	ctl->valid = 1;
+
+	return 0;
+}
+
 #endif /* __OTX2_IPSEC_FP_H__ */