ipsec: keep crypto data inside SA

[vpp.git] / src / vnet / ipsec / ipsec_sa.c

diff --git a/src/vnet/ipsec/ipsec_sa.c b/src/vnet/ipsec/ipsec_sa.c
index fc8520d..337ca34 100644 (file)
--- a/src/vnet/ipsec/ipsec_sa.c
+++ b/src/vnet/ipsec/ipsec_sa.c
@@ -88,6 +88,26 @@ ipsec_sa_stack (ipsec_sa_t * sa)
   dpo_reset (&tmp);
 }
 
+void
+ipsec_sa_set_crypto_alg (ipsec_sa_t * sa, ipsec_crypto_alg_t crypto_alg)
+{
+  ipsec_main_t *im = &ipsec_main;
+  sa->crypto_alg = crypto_alg;
+  sa->crypto_iv_size = im->crypto_algs[crypto_alg].iv_size;
+  sa->crypto_block_size = im->crypto_algs[crypto_alg].block_size;
+  sa->crypto_enc_op_type = im->crypto_algs[crypto_alg].enc_op_type;
+  sa->crypto_dec_op_type = im->crypto_algs[crypto_alg].dec_op_type;
+}
+
+void
+ipsec_sa_set_integ_alg (ipsec_sa_t * sa, ipsec_integ_alg_t integ_alg)
+{
+  ipsec_main_t *im = &ipsec_main;
+  sa->integ_alg = integ_alg;
+  sa->integ_trunc_size = im->integ_algs[integ_alg].trunc_size;
+  sa->integ_op_type = im->integ_algs[integ_alg].op_type;
+}
+
 int
 ipsec_sa_add (u32 id,
              u32 spi,
@@ -123,9 +143,9 @@ ipsec_sa_add (u32 id,
   sa->spi = spi;
   sa->stat_index = sa_index;
   sa->protocol = proto;
-  sa->crypto_alg = crypto_alg;
+  ipsec_sa_set_crypto_alg (sa, crypto_alg);
   clib_memcpy (&sa->crypto_key, ck, sizeof (sa->crypto_key));
-  sa->integ_alg = integ_alg;
+  ipsec_sa_set_integ_alg (sa, integ_alg);
   clib_memcpy (&sa->integ_key, ik, sizeof (sa->integ_key));
   ip46_address_copy (&sa->tunnel_src_addr, tun_src);
   ip46_address_copy (&sa->tunnel_dst_addr, tun_dst);