ipsec: support AES-CTR

[dpdk.git] / lib / librte_ipsec / sa.h

diff --git a/lib/librte_ipsec/sa.h b/lib/librte_ipsec/sa.h
index 392e8fd..12c061e 100644 (file)
--- a/lib/librte_ipsec/sa.h
+++ b/lib/librte_ipsec/sa.h
@@ -15,10 +15,17 @@
 enum {
        IPSEC_PAD_DEFAULT = 4,
        IPSEC_PAD_AES_CBC = IPSEC_MAX_IV_SIZE,
+       IPSEC_PAD_AES_CTR = IPSEC_PAD_DEFAULT,
        IPSEC_PAD_AES_GCM = IPSEC_PAD_DEFAULT,
        IPSEC_PAD_NULL = IPSEC_PAD_DEFAULT,
 };
 
+/* iv sizes for different algorithms */
+enum {
+       IPSEC_IV_SIZE_DEFAULT = IPSEC_MAX_IV_SIZE,
+       IPSEC_AES_CTR_IV_SIZE = sizeof(uint64_t),
+};
+
 /* these definitions probably has to be in rte_crypto_sym.h */
 union sym_op_ofslen {
        uint64_t raw;
@@ -47,7 +54,17 @@ struct replay_sqn {
        __extension__ uint64_t window[0];
 };
 
+/*IPSEC SA supported algorithms */
+enum sa_algo_type      {
+       ALGO_TYPE_NULL = 0,
+       ALGO_TYPE_AES_CBC,
+       ALGO_TYPE_AES_CTR,
+       ALGO_TYPE_AES_GCM,
+       ALGO_TYPE_MAX
+};
+
 struct rte_ipsec_sa {
+
        uint64_t type;     /* type of given SA */
        uint64_t udata;    /* user defined */
        uint32_t size;     /* size of given sa object */
@@ -65,6 +82,7 @@ struct rte_ipsec_sa {
                union sym_op_ofslen auth;
        } ctp;
        uint32_t salt;
+       uint8_t algo_type;
        uint8_t proto;    /* next proto */
        uint8_t aad_len;
        uint8_t hdr_len;