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-rwxr-xr-xhicn-plugin/src/faces/app/face_prod.c375
1 files changed, 375 insertions, 0 deletions
diff --git a/hicn-plugin/src/faces/app/face_prod.c b/hicn-plugin/src/faces/app/face_prod.c
new file mode 100755
index 000000000..d06fe2ff3
--- /dev/null
+++ b/hicn-plugin/src/faces/app/face_prod.c
@@ -0,0 +1,375 @@
+/*
+ * Copyright (c) 2017-2019 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 "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, hicn_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 (hicn_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->name)))
+ {
+ 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;
+ ip46_address_t *prefix_addr;
+ /* *INDENT-OFF* */
+ pool_foreach (temp, face_state_pool,{
+ if (*temp == swif)
+ {
+ found = 1;
+ swif_app = temp;
+ }
+ }
+ );
+ /* *INDENT-ON* */
+
+ prefix_addr = &(face_state_vec[swif].prefix.name);
+ if (!found)
+ return HICN_ERROR_APPFACE_NOT_FOUND;
+
+ int ret = HICN_ERROR_NONE;
+ if (ip46_address_is_ip4 (prefix_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 (hicn_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 app_ip;
+ u32 if_flags = 0;
+
+ if (!hm->is_enabled)
+ {
+ return HICN_ERROR_FWD_NOT_ENABLED;
+ }
+ 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);
+
+ if (ip46_address_is_zero (&prefix->name))
+ {
+ return HICN_ERROR_APPFACE_PROD_PREFIX_NULL;
+ }
+ /*
+ * Check if a producer face is already existing for the same prefix
+ * and sw_if
+ */
+ if (ip46_address_is_ip4 (&prefix->name))
+ {
+ face =
+ hicn_face_ip4_get (&(prefix->name.ip4), sw_if,
+ &hicn_face_ip_remote_hashtb);
+ }
+ else
+ {
+ face =
+ hicn_face_ip6_get (&(prefix->name.ip6), sw_if,
+ &hicn_face_ip_remote_hashtb);
+ if (face != NULL)
+ return HICN_ERROR_FACE_ALREADY_CREATED;
+ }
+
+ if (face != NULL)
+ {
+ if (!(face->shared.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->shared.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->shared.flags & HICN_FACE_FLAGS_DELETED)
+ {
+ /*
+ * remove the deleted flag and retrieve the face
+ * local addr
+ */
+ face->shared.flags &= HICN_FACE_FLAGS_DELETED;
+ hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data;
+ app_ip = prod_face->ip_face.local_addr;
+ }
+ }
+ else
+ {
+ /* Otherwise create the face */
+ if (ip46_address_is_ip4 (&prefix->name))
+ {
+ /*
+ * Otherwise retrieve an ip address to assign as a
+ * local ip addr.
+ */
+ ip4_address_t app_ip4 = get_ip4_address ();
+ ip4_add_del_interface_address (vm,
+ sw_if,
+ &app_ip4,
+ ADDR_MGR_IP4_CONS_LEN,
+ 0 /* is_del */ );
+ app_ip = to_ip46 ( /* isv6 */ 0, app_ip4.as_u8);
+ }
+ else
+ {
+ ip6_address_t app_ip6 = get_ip6_address ();
+ ip6_add_del_interface_address (vm,
+ sw_if,
+ &app_ip6,
+ ADDR_MGR_IP6_CONS_LEN,
+ 0 /* is_del */ );
+ app_ip = to_ip46 ( /* isv6 */ 1, app_ip6.as_u8);
+ }
+
+ /*
+ * Special case: the nh_addr in the face is the appif ip
+ * address
+ */
+ ret = hicn_face_ip_add (&app_ip, &(prefix->name), sw_if, faceid);
+
+ face = hicn_dpoi_get_from_idx (*faceid);
+
+ face->shared.flags |= HICN_FACE_FLAGS_APPFACE_PROD;
+
+ hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data;
+
+ /*
+ * For the moment we keep them here although it would be good
+ * to create a different face for appface
+ */
+ prod_face->policy_vft.hicn_cs_insert = hicn_cs_lru.hicn_cs_insert;
+ prod_face->policy_vft.hicn_cs_update = hicn_cs_lru.hicn_cs_update;
+ prod_face->policy_vft.hicn_cs_dequeue = hicn_cs_lru.hicn_cs_dequeue;
+ prod_face->policy_vft.hicn_cs_delete_get =
+ hicn_cs_lru.hicn_cs_delete_get;
+ prod_face->policy_vft.hicn_cs_trim = hicn_cs_lru.hicn_cs_trim;
+
+ }
+
+ if (ret == HICN_ERROR_NONE
+ && hicn_face_prod_set_lru_max (*faceid, cs_reserved) == HICN_ERROR_NONE)
+ {
+ hicn_app_state_create (sw_if, prefix);
+ ret = hicn_route_add (faceid, 1, &(prefix->name), prefix->len);
+ }
+
+ *prod_addr = app_ip;
+
+ /* Cleanup in case of something went wrong. */
+ if (ret)
+ {
+ hicn_app_state_del (sw_if);
+
+ if (*faceid != HICN_FACE_NULL)
+ hicn_face_ip_del (*faceid);
+ }
+ return ret;
+}
+
+int
+hicn_face_prod_del (hicn_face_id_t face_id)
+{
+ hicn_face_t *face = hicn_dpoi_get_from_idx (face_id);
+
+ if (face->shared.flags & HICN_FACE_FLAGS_APPFACE_PROD)
+ {
+ hicn_face_prod_t *prod_face = (hicn_face_prod_t *) face->data;
+ /* Free the CS reserved for the face */
+ hicn_main.pitcs.pcs_app_max += prod_face->policy.max;
+ hicn_main.pitcs.pcs_app_count -= prod_face->policy.max;
+ prod_face->policy.max = 0;
+
+ /* Remove the face from the fib */
+ hicn_route_del_nhop (&(face_state_vec[face->shared.sw_if].prefix.name),
+ (face_state_vec[face->shared.sw_if].prefix.len),
+ face_id);
+
+ int ret = hicn_face_ip_del (face_id);
+ return ret ==
+ HICN_ERROR_NONE ? hicn_app_state_del (face->shared.sw_if) : ret;
+ }
+ else
+ {
+ return HICN_ERROR_APPFACE_NOT_FOUND;
+ }
+}
+
+int
+hicn_face_prod_set_lru_max (hicn_face_id_t face_id, u32 * requested_size)
+{
+ int ret = HICN_ERROR_NONE;
+ vlib_main_t *vm = vlib_get_main ();
+ hicn_face_t *face;
+ hicn_face_prod_t *face_prod;
+
+ if (!hicn_infra_fwdr_initialized)
+ {
+ ret = HICN_ERROR_FWD_NOT_ENABLED;
+ vlib_cli_output (vm, "hicn: %s\n", get_error_string (ret));
+ return ret;
+ }
+ face = hicn_dpoi_get_from_idx (face_id);
+ face_prod = (hicn_face_prod_t *) face->data;
+
+ if (face == NULL)
+ return HICN_ERROR_FACE_NOT_FOUND;
+
+ if (*requested_size > HICN_PARAM_FACE_MAX_CS_RESERVED)
+ *requested_size = HICN_PARAM_FACE_MAX_CS_RESERVED;
+
+ uint32_t available =
+ hicn_main.pitcs.pcs_app_max - hicn_main.pitcs.pcs_app_count;
+
+ if (*requested_size > available)
+ *requested_size = available;
+
+ face_prod->policy.max = *requested_size;
+ face_prod->policy.count = 0;
+ face_prod->policy.head = face_prod->policy.tail = 0;
+
+ hicn_main.pitcs.pcs_app_count += *requested_size;
+
+ return ret;
+}
+
+u8 *
+format_hicn_face_prod (u8 * s, va_list * args)
+{
+ index_t index = va_arg (*args, index_t);
+ CLIB_UNUSED (u32 indent) = va_arg (*args, u32);
+ hicn_face_t *face;
+ hicn_face_prod_t *prod_face;
+
+ face = hicn_dpoi_get_from_idx (index);
+ prod_face = (hicn_face_prod_t *) face->data;
+
+ s =
+ format (s, " (producer face: CS size %d, data cached %d)",
+ prod_face->policy.max, prod_face->policy.count);
+
+ 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:
+ */