ipsec: remove dedicated IPSec tunnels

APIs for dedicated IPSec tunnels will remain in this release and are
used to programme the IPIP tunnel protect. APIs will be removed in a
future release.

see:
 https://wiki.fd.io/view/VPP/IPSec

Type: feature

Change-Id: I0f01f597946fdd15dfa5cae3643104d5a9c83089
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 117 insertions, 2 deletions

diff --git a/src/vnet/ipsec/ipsec_tun.c b/src/vnet/ipsec/ipsec_tun.c
index 7864cba08be..ca0091b3545 100644
--- a/src/vnet/ipsec/ipsec_tun.c
+++ b/src/vnet/ipsec/ipsec_tun.c
@@ -148,6 +148,7 @@ ipsec_tun_protect_config (ipsec_main_t * im,
 			  ipsec_tun_protect_t * itp, u32 sa_out, u32 * sas_in)
 {
   ipsec_sa_t *sa;
+  index_t sai;
   u32 ii;
 
   itp->itp_n_sa_in = vec_len (sas_in);
@@ -155,7 +156,13 @@ ipsec_tun_protect_config (ipsec_main_t * im,
     itp->itp_in_sas[ii] = sas_in[ii];
   itp->itp_out_sa = sa_out;
 
+  ipsec_sa_lock (itp->itp_out_sa);
+
   /* *INDENT-OFF* */
+  FOR_EACH_IPSEC_PROTECT_INPUT_SAI(itp, sai,
+  ({
+    ipsec_sa_lock(sai);
+  }));
   FOR_EACH_IPSEC_PROTECT_INPUT_SA(itp, sa,
   ({
     if (ipsec_sa_is_set_IS_TUNNEL (sa))
@@ -183,7 +190,6 @@ ipsec_tun_protect_config (ipsec_main_t * im,
    * enable the encrypt feature for egress.
    */
   ipsec_tun_protect_feature_set (itp, 1);
-
 }
 
 static void
@@ -221,10 +227,116 @@ ipsec_tun_protect_find (u32 sw_if_index)
 }
 
 int
+ipsec_tun_protect_update_one (u32 sw_if_index, u32 sa_out, u32 sa_in)
+{
+  u32 *sas_in = NULL;
+  int rv;
+
+  vec_add1 (sas_in, sa_in);
+  rv = ipsec_tun_protect_update (sw_if_index, sa_out, sas_in);
+
+  return (rv);
+}
+
+int
+ipsec_tun_protect_update_out (u32 sw_if_index, u32 sa_out)
+{
+  u32 itpi, *sas_in, sai, *saip;
+  ipsec_tun_protect_t *itp;
+  ipsec_main_t *im;
+  int rv;
+
+  sas_in = NULL;
+  rv = 0;
+  im = &ipsec_main;
+  vec_validate_init_empty (ipsec_protect_db.tunnels, sw_if_index,
+			   INDEX_INVALID);
+  itpi = ipsec_protect_db.tunnels[sw_if_index];
+
+  if (INDEX_INVALID == itpi)
+    {
+      return (VNET_API_ERROR_INVALID_INTERFACE);
+    }
+
+  itp = pool_elt_at_index (ipsec_protect_pool, itpi);
+
+  /* *INDENT-0FF* */
+  FOR_EACH_IPSEC_PROTECT_INPUT_SAI (itp, sai, (
+						{
+						ipsec_sa_lock (sai);
+						vec_add1 (sas_in, sai);
+						}
+				    ));
+  /* *INDENT-ON* */
+
+  sa_out = ipsec_sa_find_and_lock (sa_out);
+
+  if (~0 == sa_out)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto out;
+    }
+
+  ipsec_tun_protect_unconfig (im, itp);
+  ipsec_tun_protect_config (im, itp, sa_out, sas_in);
+
+  ipsec_sa_unlock (sa_out);
+  vec_foreach (saip, sas_in) ipsec_sa_unlock (*saip);
+
+out:
+  vec_free (sas_in);
+  return (rv);
+}
+
+int
+ipsec_tun_protect_update_in (u32 sw_if_index, u32 sa_in)
+{
+  u32 itpi, *sas_in, sa_out;
+  ipsec_tun_protect_t *itp;
+  ipsec_main_t *im;
+  int rv;
+
+  sas_in = NULL;
+  rv = 0;
+  im = &ipsec_main;
+  vec_validate_init_empty (ipsec_protect_db.tunnels, sw_if_index,
+			   INDEX_INVALID);
+  itpi = ipsec_protect_db.tunnels[sw_if_index];
+
+  if (INDEX_INVALID == itpi)
+    {
+      return (VNET_API_ERROR_INVALID_INTERFACE);
+    }
+
+  sa_in = ipsec_sa_find_and_lock (sa_in);
+
+  if (~0 == sa_in)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto out;
+    }
+  vec_add1 (sas_in, sa_in);
+
+  itp = pool_elt_at_index (ipsec_protect_pool, itpi);
+  sa_out = itp->itp_out_sa;
+
+  ipsec_sa_lock (sa_out);
+
+  ipsec_tun_protect_unconfig (im, itp);
+  ipsec_tun_protect_config (im, itp, sa_out, sas_in);
+
+  ipsec_sa_unlock (sa_out);
+  ipsec_sa_unlock (sa_in);
+out:
+  vec_free (sas_in);
+  return (rv);
+}
+
+int
 ipsec_tun_protect_update (u32 sw_if_index, u32 sa_out, u32 * sas_in)
 {
-  u32 itpi, ii;
   ipsec_tun_protect_t *itp;
+  u32 itpi, ii, *saip;
   ipsec_main_t *im;
   int rv;
 
@@ -330,7 +442,10 @@ ipsec_tun_protect_update (u32 sw_if_index, u32 sa_out, u32 * sas_in)
       ipsec_tun_protect_config (im, itp, sa_out, sas_in);
     }
 
+  ipsec_sa_unlock (sa_out);
+  vec_foreach (saip, sas_in) ipsec_sa_unlock (*saip);
   vec_free (sas_in);
+
 out:
   return (rv);
 }