ipsec: infra for selecting backends
Change-Id: Ifa6d8391b1b2413a88b7720fc434e0bc849a149a
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
diff --git a/src/vnet/ipsec/ipsec_api.c b/src/vnet/ipsec/ipsec_api.c
index ced2c9c..f233364 100644
--- a/src/vnet/ipsec/ipsec_api.c
+++ b/src/vnet/ipsec/ipsec_api.c
@@ -47,35 +47,37 @@
#include <vlibapi/api_helper_macros.h>
-#define foreach_vpe_api_msg \
-_(IPSEC_SPD_ADD_DEL, ipsec_spd_add_del) \
-_(IPSEC_INTERFACE_ADD_DEL_SPD, ipsec_interface_add_del_spd) \
-_(IPSEC_SPD_ADD_DEL_ENTRY, ipsec_spd_add_del_entry) \
-_(IPSEC_SAD_ADD_DEL_ENTRY, ipsec_sad_add_del_entry) \
-_(IPSEC_SA_SET_KEY, ipsec_sa_set_key) \
-_(IPSEC_SA_DUMP, ipsec_sa_dump) \
-_(IPSEC_SPDS_DUMP, ipsec_spds_dump) \
-_(IPSEC_SPD_DUMP, ipsec_spd_dump) \
-_(IPSEC_SPD_INTERFACE_DUMP, ipsec_spd_interface_dump) \
-_(IPSEC_TUNNEL_IF_ADD_DEL, ipsec_tunnel_if_add_del) \
-_(IPSEC_TUNNEL_IF_SET_KEY, ipsec_tunnel_if_set_key) \
-_(IPSEC_TUNNEL_IF_SET_SA, ipsec_tunnel_if_set_sa) \
-_(IKEV2_PROFILE_ADD_DEL, ikev2_profile_add_del) \
-_(IKEV2_PROFILE_SET_AUTH, ikev2_profile_set_auth) \
-_(IKEV2_PROFILE_SET_ID, ikev2_profile_set_id) \
-_(IKEV2_PROFILE_SET_TS, ikev2_profile_set_ts) \
-_(IKEV2_SET_LOCAL_KEY, ikev2_set_local_key) \
-_(IKEV2_SET_RESPONDER, ikev2_set_responder) \
-_(IKEV2_SET_IKE_TRANSFORMS, ikev2_set_ike_transforms) \
-_(IKEV2_SET_ESP_TRANSFORMS, ikev2_set_esp_transforms) \
-_(IKEV2_SET_SA_LIFETIME, ikev2_set_sa_lifetime) \
-_(IKEV2_INITIATE_SA_INIT, ikev2_initiate_sa_init) \
-_(IKEV2_INITIATE_DEL_IKE_SA, ikev2_initiate_del_ike_sa) \
-_(IKEV2_INITIATE_DEL_CHILD_SA, ikev2_initiate_del_child_sa) \
-_(IKEV2_INITIATE_REKEY_CHILD_SA, ikev2_initiate_rekey_child_sa)
+#define foreach_vpe_api_msg \
+_(IPSEC_SPD_ADD_DEL, ipsec_spd_add_del) \
+_(IPSEC_INTERFACE_ADD_DEL_SPD, ipsec_interface_add_del_spd) \
+_(IPSEC_SPD_ADD_DEL_ENTRY, ipsec_spd_add_del_entry) \
+_(IPSEC_SAD_ADD_DEL_ENTRY, ipsec_sad_add_del_entry) \
+_(IPSEC_SA_SET_KEY, ipsec_sa_set_key) \
+_(IPSEC_SA_DUMP, ipsec_sa_dump) \
+_(IPSEC_SPDS_DUMP, ipsec_spds_dump) \
+_(IPSEC_SPD_DUMP, ipsec_spd_dump) \
+_(IPSEC_SPD_INTERFACE_DUMP, ipsec_spd_interface_dump) \
+_(IPSEC_TUNNEL_IF_ADD_DEL, ipsec_tunnel_if_add_del) \
+_(IPSEC_TUNNEL_IF_SET_KEY, ipsec_tunnel_if_set_key) \
+_(IPSEC_TUNNEL_IF_SET_SA, ipsec_tunnel_if_set_sa) \
+_(IKEV2_PROFILE_ADD_DEL, ikev2_profile_add_del) \
+_(IKEV2_PROFILE_SET_AUTH, ikev2_profile_set_auth) \
+_(IKEV2_PROFILE_SET_ID, ikev2_profile_set_id) \
+_(IKEV2_PROFILE_SET_TS, ikev2_profile_set_ts) \
+_(IKEV2_SET_LOCAL_KEY, ikev2_set_local_key) \
+_(IKEV2_SET_RESPONDER, ikev2_set_responder) \
+_(IKEV2_SET_IKE_TRANSFORMS, ikev2_set_ike_transforms) \
+_(IKEV2_SET_ESP_TRANSFORMS, ikev2_set_esp_transforms) \
+_(IKEV2_SET_SA_LIFETIME, ikev2_set_sa_lifetime) \
+_(IKEV2_INITIATE_SA_INIT, ikev2_initiate_sa_init) \
+_(IKEV2_INITIATE_DEL_IKE_SA, ikev2_initiate_del_ike_sa) \
+_(IKEV2_INITIATE_DEL_CHILD_SA, ikev2_initiate_del_child_sa) \
+_(IKEV2_INITIATE_REKEY_CHILD_SA, ikev2_initiate_rekey_child_sa) \
+_(IPSEC_SELECT_BACKEND, ipsec_select_backend) \
+_(IPSEC_BACKEND_DUMP, ipsec_backend_dump)
-static void vl_api_ipsec_spd_add_del_t_handler
- (vl_api_ipsec_spd_add_del_t * mp)
+static void
+vl_api_ipsec_spd_add_del_t_handler (vl_api_ipsec_spd_add_del_t * mp)
{
#if WITH_LIBSSL == 0
clib_warning ("unimplemented");
@@ -234,8 +236,7 @@
}
sa.use_anti_replay = mp->use_anti_replay;
- ASSERT (im->cb.check_support_cb);
- clib_error_t *err = im->cb.check_support_cb (&sa);
+ clib_error_t *err = ipsec_check_support_cb (im, &sa);
if (err)
{
clib_warning ("%s", err->what);
@@ -999,6 +1000,92 @@
#undef _
}
+static void
+vl_api_ipsec_backend_dump_t_handler (vl_api_ipsec_backend_dump_t * mp)
+{
+ vl_api_registration_t *rp;
+ ipsec_main_t *im = &ipsec_main;
+ u32 context = mp->context;
+
+ rp = vl_api_client_index_to_registration (mp->client_index);
+
+ if (rp == 0)
+ {
+ clib_warning ("Client %d AWOL", mp->client_index);
+ return;
+ }
+
+ ipsec_ah_backend_t *ab;
+ ipsec_esp_backend_t *eb;
+ /* *INDENT-OFF* */
+ pool_foreach (ab, im->ah_backends, {
+ vl_api_ipsec_backend_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IPSEC_BACKEND_DETAILS);
+ mp->context = context;
+ snprintf ((char *)mp->name, sizeof (mp->name), "%.*s", vec_len (ab->name),
+ ab->name);
+ mp->protocol = IPSEC_PROTOCOL_AH;
+ mp->index = ab - im->ah_backends;
+ mp->active = mp->index == im->ah_current_backend ? 1 : 0;
+ vl_api_send_msg (rp, (u8 *)mp);
+ });
+ pool_foreach (eb, im->esp_backends, {
+ vl_api_ipsec_backend_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IPSEC_BACKEND_DETAILS);
+ mp->context = context;
+ snprintf ((char *)mp->name, sizeof (mp->name), "%.*s", vec_len (eb->name),
+ eb->name);
+ mp->protocol = IPSEC_PROTOCOL_ESP;
+ mp->index = eb - im->esp_backends;
+ mp->active = mp->index == im->esp_current_backend ? 1 : 0;
+ vl_api_send_msg (rp, (u8 *)mp);
+ });
+ /* *INDENT-ON* */
+}
+
+static void
+vl_api_ipsec_select_backend_t_handler (vl_api_ipsec_select_backend_t * mp)
+{
+ ipsec_main_t *im = &ipsec_main;
+ vl_api_ipsec_select_backend_reply_t *rmp;
+ int rv = 0;
+ if (pool_elts (im->sad) > 0)
+ {
+ rv = VNET_API_ERROR_INSTANCE_IN_USE;
+ goto done;
+ }
+#if WITH_LIBSSL > 0
+ switch (mp->protocol)
+ {
+ case IPSEC_PROTOCOL_ESP:
+ if (pool_is_free_index (im->esp_backends, mp->index))
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ break;
+ }
+ ipsec_select_esp_backend (im, mp->index);
+ break;
+ case IPSEC_PROTOCOL_AH:
+ if (pool_is_free_index (im->ah_backends, mp->index))
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ break;
+ }
+ ipsec_select_ah_backend (im, mp->index);
+ break;
+ default:
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ break;
+ }
+#else
+ clib_warning ("unimplemented"); /* FIXME */
+#endif
+done:
+ REPLY_MACRO (VL_API_IPSEC_SELECT_BACKEND_REPLY);
+}
+
static clib_error_t *
ipsec_api_hookup (vlib_main_t * vm)
{