aboutsummaryrefslogtreecommitdiffstats
path: root/hicn-plugin/src/network/faces/app/face_prod.c
diff options
context:
space:
mode:
Diffstat (limited to 'hicn-plugin/src/network/faces/app/face_prod.c')
-rw-r--r--hicn-plugin/src/network/faces/app/face_prod.c369
1 files changed, 369 insertions, 0 deletions
diff --git a/hicn-plugin/src/network/faces/app/face_prod.c b/hicn-plugin/src/network/faces/app/face_prod.c
new file mode 100644
index 000000000..645154325
--- /dev/null
+++ b/hicn-plugin/src/network/faces/app/face_prod.c
@@ -0,0 +1,369 @@
+/*
+ * Copyright (c) 2017-2020 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/ip/ip6_packet.h>
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/interface_funcs.h>
+
+#include "face_prod.h"
+#include "address_mgr.h"
+#include "../../infra.h"
+#include "../../route.h"
+#include "../../cache_policies/cs_lru.h"
+
+hicn_face_prod_state_t *face_state_vec;
+
+/* used to check if an interface is already in the vector */
+u32 *face_state_pool;
+
+static int
+hicn_app_state_create (u32 swif, fib_prefix_t * prefix)
+{
+ /* Make sure that the pool is not empty */
+ pool_validate_index (face_state_pool, 0);
+
+ u32 *swif_app;
+ u8 found = 0;
+ /* *INDENT-OFF* */
+ pool_foreach (swif_app, face_state_pool,{
+ if (*swif_app == swif)
+ {
+ found = 1;
+ }
+ }
+ );
+ /* *INDENT-ON* */
+
+
+ if (found)
+ return HICN_ERROR_APPFACE_ALREADY_ENABLED;
+
+
+ /* Create the appif and store in the vector */
+ vec_validate (face_state_vec, swif);
+ clib_memcpy (&(face_state_vec[swif].prefix), prefix, sizeof (fib_prefix_t));
+
+ /* Set as busy the element in the vector */
+ pool_get (face_state_pool, swif_app);
+ *swif_app = swif;
+
+ int ret = HICN_ERROR_NONE;
+ if (ip46_address_is_ip4 (&(prefix->fp_addr)))
+ {
+ ret =
+ vnet_feature_enable_disable ("ip4-unicast", "hicn-face-prod-input",
+ swif, 1, 0, 0);
+ }
+ else
+ {
+ ret =
+ vnet_feature_enable_disable ("ip6-unicast", "hicn-face-prod-input",
+ swif, 1, 0, 0);
+ }
+
+ return ret == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE;
+}
+
+static int
+hicn_app_state_del (u32 swif)
+{
+ /* Make sure that the pool is not empty */
+ pool_validate_index (face_state_pool, 0);
+
+ u32 *temp;
+ u32 *swif_app = NULL;
+ u8 found = 0;
+ fib_prefix_t *prefix;
+ /* *INDENT-OFF* */
+ pool_foreach (temp, face_state_pool,{
+ if (*temp == swif)
+ {
+ found = 1;
+ swif_app = temp;
+ }
+ }
+ );
+ /* *INDENT-ON* */
+
+ if (!found)
+ return HICN_ERROR_APPFACE_NOT_FOUND;
+
+ prefix = &(face_state_vec[swif].prefix);
+
+ int ret = HICN_ERROR_NONE;
+ if (ip46_address_is_ip4 (&prefix->fp_addr))
+ {
+ ret =
+ vnet_feature_enable_disable ("ip4-unicast", "hicn-face-prod-input",
+ swif, 0, 0, 0);
+ }
+ else
+ {
+ ret =
+ vnet_feature_enable_disable ("ip6-unicast", "hicn-face-prod-input",
+ swif, 0, 0, 0);
+ }
+
+ pool_put (face_state_pool, swif_app);
+ memset (&face_state_vec[swif], 0, sizeof (hicn_face_prod_state_t));
+
+ return ret == 0 ? HICN_ERROR_NONE : HICN_ERROR_APPFACE_FEATURE;
+}
+
+int
+hicn_face_prod_add (fib_prefix_t * prefix, u32 sw_if, u32 * cs_reserved,
+ ip46_address_t * prod_addr, hicn_face_id_t * faceid)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ vnet_main_t *vnm = vnet_get_main ();
+
+ hicn_main_t *hm = &hicn_main;
+
+ ip46_address_t local_app_ip;
+ CLIB_UNUSED(ip46_address_t remote_app_ip);
+ u32 if_flags = 0;
+
+ if (!hm->is_enabled)
+ {
+ return HICN_ERROR_FWD_NOT_ENABLED;
+ }
+
+ if (vnet_get_sw_interface_or_null (vnm, sw_if) == NULL)
+ {
+ return HICN_ERROR_FACE_HW_INT_NOT_FOUND;
+ }
+
+ int ret = HICN_ERROR_NONE;
+ hicn_face_t *face = NULL;
+
+ if_flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
+ vnet_sw_interface_set_flags (vnm, sw_if, if_flags);
+
+ u8 *s0;
+ s0 = format (0, "Prefix %U", format_fib_prefix, prefix);
+
+ vlib_cli_output (vm, "Received request for %s, swif %d\n", s0, sw_if);
+
+ if (ip46_address_is_zero (&prefix->fp_addr))
+ {
+ return HICN_ERROR_APPFACE_PROD_PREFIX_NULL;
+ }
+
+ u8 isv6 = ip46_address_is_ip4(prod_addr);
+ index_t adj_index = adj_nbr_find(isv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4, isv6 ? VNET_LINK_IP6 : VNET_LINK_IP4, prod_addr, sw_if);
+
+ /*
+ * Check if a producer face is already existing for the same prefix
+ * and sw_if
+ */
+ face = hicn_face_get (&(prefix->fp_addr), sw_if,
+ &hicn_face_hashtb, adj_index);
+
+ if (face != NULL)
+ {
+ if (!(face->flags & HICN_FACE_FLAGS_DELETED))
+ return HICN_ERROR_FACE_ALREADY_CREATED;
+
+ /*
+ * Something went worng, a consumer face exists for the
+ * producer's prefix.
+ */
+ /* It should never happens, this is a safety check. */
+ if (face->flags & HICN_FACE_FLAGS_APPFACE_CONS)
+ return HICN_ERROR_FACE_ALREADY_CREATED;
+
+ /* If the face exists but is marked as deleted, undelete it */
+ if (face->flags & HICN_FACE_FLAGS_DELETED)
+ {
+ /*
+ * remove the deleted flag and retrieve the face
+ * local addr
+ */
+ face->flags &= HICN_FACE_FLAGS_DELETED;
+ }
+ }
+ else
+ {
+ /* Otherwise create the face */
+ if (ip46_address_is_ip4 (&prefix->fp_addr))
+ {
+ /*
+ * Otherwise retrieve an ip address to assign as a
+ * local ip addr.
+ */
+ ip4_address_t local_app_ip4;
+ ip4_address_t remote_app_ip4;
+ get_two_ip4_addresses (&local_app_ip4, &remote_app_ip4);
+ ip4_add_del_interface_address (vm,
+ sw_if,
+ &local_app_ip4, 31, 0 /* is_del */ );
+ local_app_ip = to_ip46 ( /* isv6 */ 0, local_app_ip4.as_u8);
+ remote_app_ip = to_ip46 ( /* isv6 */ 0, remote_app_ip4.as_u8);
+
+ vnet_build_rewrite_for_sw_interface(vnm, sw_if, VNET_LINK_IP4, &remote_app_ip4);
+ }
+ else
+ {
+ ip6_address_t local_app_ip6;
+ ip6_address_t remote_app_ip6;
+ get_two_ip6_addresses (&local_app_ip6, &remote_app_ip6);
+ u8 *s0;
+ s0 = format (0, "%U", format_ip6_address, &local_app_ip6);
+
+ vlib_cli_output (vm, "Setting ip address %s\n", s0);
+
+ ip6_add_del_interface_address (vm,
+ sw_if,
+ &local_app_ip6, 127,
+ 0 /* is_del */ );
+ local_app_ip = to_ip46 ( /* isv6 */ 1, local_app_ip6.as_u8);
+ remote_app_ip = to_ip46 ( /* isv6 */ 1, remote_app_ip6.as_u8);
+ }
+ }
+
+ if (ret == HICN_ERROR_NONE)
+ // && hicn_face_prod_set_lru_max (*faceid, cs_reserved) == HICN_ERROR_NONE)
+ {
+ fib_route_path_t rpath = {0};
+ fib_route_path_t * rpaths = NULL;
+
+ if (ip46_address_is_ip4(&(prefix->fp_addr)))
+ {
+ ip4_address_t mask;
+ ip4_preflen_to_mask (prefix->fp_len, &mask);
+ prefix->fp_addr.ip4.as_u32 = prefix->fp_addr.ip4.as_u32 & mask.as_u32;
+ prefix->fp_proto = FIB_PROTOCOL_IP4;
+
+ rpath.frp_weight = 1;
+ rpath.frp_sw_if_index = ~0;
+ rpath.frp_addr.ip4.as_u32 = remote_app_ip.ip4.as_u32;
+ rpath.frp_sw_if_index = sw_if;
+ rpath.frp_proto = DPO_PROTO_IP4;
+
+ vec_add1 (rpaths, rpath);
+ }
+ else
+ {
+ ip6_address_t mask;
+ ip6_preflen_to_mask (prefix->fp_len, &mask);
+ prefix->fp_addr.ip6.as_u64[0] =
+ prefix->fp_addr.ip6.as_u64[0] & mask.as_u64[0];
+ prefix->fp_addr.ip6.as_u64[1] =
+ prefix->fp_addr.ip6.as_u64[1] & mask.as_u64[1];
+ prefix->fp_proto = FIB_PROTOCOL_IP6;
+
+ rpath.frp_weight = 1;
+ rpath.frp_sw_if_index = ~0;
+ rpath.frp_addr.ip6.as_u64[0] = remote_app_ip.ip6.as_u64[0];
+ rpath.frp_addr.ip6.as_u64[1] = remote_app_ip.ip6.as_u64[1];
+ rpath.frp_sw_if_index = sw_if;
+ rpath.frp_proto = DPO_PROTO_IP6;
+
+ vec_add1 (rpaths, rpath);
+ }
+
+ u32 fib_index = fib_table_find (prefix->fp_proto, 0);
+ fib_table_entry_path_add2 (fib_index,
+ prefix,
+ FIB_SOURCE_CLI,
+ FIB_ENTRY_FLAG_NONE, rpaths);
+
+ hicn_route_enable(prefix);
+ hicn_app_state_create (sw_if, prefix);
+ }
+
+ adj_index = adj_nbr_find(isv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4, isv6 ? VNET_LINK_IP6 : VNET_LINK_IP4, prod_addr, sw_if);
+ face = hicn_face_get(&local_app_ip, sw_if, &hicn_face_hashtb, adj_index);//HICN_FACE_FLAGS_APPFACE_PROD);
+
+ *faceid = hicn_dpoi_get_index (face);
+
+ face->flags |= HICN_FACE_FLAGS_APPFACE_PROD;
+
+ hicn_face_unlock_with_id(*faceid);
+
+ *prod_addr = local_app_ip;
+
+ /* Cleanup in case of something went wrong. */
+ if (ret)
+ {
+ hicn_app_state_del (sw_if);
+ }
+ return ret;
+}
+
+int
+hicn_face_prod_del (hicn_face_id_t face_id)
+{
+ if (!hicn_dpoi_idx_is_valid (face_id))
+ return HICN_ERROR_APPFACE_NOT_FOUND;
+
+ hicn_face_t *face = hicn_dpoi_get_from_idx (face_id);
+
+ if (face->flags & HICN_FACE_FLAGS_APPFACE_PROD)
+ {
+ /* Remove the face from the fib */
+ hicn_route_disable(&(face_state_vec[face->sw_if].prefix));
+ //hicn_route_del_nhop (&(face_state_vec[face->sw_if].prefix),
+ // face_id);
+
+ //int ret = hicn_face_del (face_id);
+ return hicn_app_state_del (face->sw_if);
+ //ret == HICN_ERROR_NONE ? hicn_app_state_del (face->sw_if) : ret;
+ }
+ else
+ {
+ return HICN_ERROR_APPFACE_NOT_FOUND;
+ }
+
+ return HICN_ERROR_NONE;
+}
+
+u8 *
+format_hicn_face_prod (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (index_t index) = va_arg (*args, index_t);
+ CLIB_UNUSED (u32 indent) = va_arg (*args, u32);
+
+ s =
+ format (s, " (producer)");
+
+ return s;
+}
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT(hicn_prod_app_input_ip6, static)=
+{
+ .arc_name = "ip6-unicast",
+ .node_name = "hicn-face-prod-input",
+ .runs_before = VNET_FEATURES("ip6-inacl"),
+};
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT(hicn_prod_app_input_ip4, static)=
+{
+ .arc_name = "ip4-unicast",
+ .node_name = "hicn-face-prod-input",
+ .runs_before = VNET_FEATURES("ip4-inacl"),
+};
+/* *INDENT-ON* */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables: eval: (c-set-style "gnu") End:
+ */