#ifndef __OTX2_IPSEC_FP_H__
#define __OTX2_IPSEC_FP_H__
+#include <rte_crypto_sym.h>
+#include <rte_security.h>
+
+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;
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_fp_in_sa {
/* w0 */
struct otx2_ipsec_fp_sa_ctl ctl;
uint64_t reserved2;
};
+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__ */
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