--- /dev/null
+/*
+ *------------------------------------------------------------------
+ * ip_api.c - vnet ip api
+ *
+ * Copyright (c) 2016 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 <stddef.h>
+
+#include <vnet/ip-neighbor/ip_neighbor.h>
+#include <vnet/ip-neighbor/ip_neighbor_watch.h>
+#include <vnet/ip/ip_types_api.h>
+#include <vnet/ethernet/ethernet_types_api.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+
+#include <vnet/ip-neighbor/ip_neighbor.api_enum.h>
+#include <vnet/ip-neighbor/ip_neighbor.api_types.h>
+
+static u16 msg_id_base;
+#define REPLY_MSG_ID_BASE msg_id_base
+
+#include <vlibapi/api_helper_macros.h>
+
+#include <vnet/format_fns.h>
+
+
+static ip46_type_t
+ip46_type_from_af (ip_address_family_t af)
+{
+ return (AF_IP4 == af ? IP46_TYPE_IP4 : IP46_TYPE_IP6);
+}
+
+static vl_api_ip_neighbor_flags_t
+ip_neighbor_flags_encode (ip_neighbor_flags_t f)
+{
+ vl_api_ip_neighbor_flags_t v = IP_API_NEIGHBOR_FLAG_NONE;
+
+ if (f & IP_NEIGHBOR_FLAG_STATIC)
+ v |= IP_API_NEIGHBOR_FLAG_STATIC;
+ if (f & IP_NEIGHBOR_FLAG_NO_FIB_ENTRY)
+ v |= IP_API_NEIGHBOR_FLAG_NO_FIB_ENTRY;
+
+ return (v);
+}
+
+static void
+ip_neighbor_encode (vl_api_ip_neighbor_t * api, const ip_neighbor_t * ipn)
+{
+ api->sw_if_index = htonl (ipn->ipn_key->ipnk_sw_if_index);
+ api->flags = ip_neighbor_flags_encode (ipn->ipn_flags);
+
+ ip_address_encode (&ipn->ipn_key->ipnk_ip,
+ ipn->ipn_key->ipnk_type, &api->ip_address);
+ mac_address_encode (&ipn->ipn_mac, api->mac_address);
+}
+
+void
+ip_neighbor_handle_event (const ip_neighbor_event_t * ipne)
+{
+ vl_api_ip_neighbor_event_t *mp;
+ vl_api_registration_t *reg;
+ const ip_neighbor_t *ipn;
+
+ ipn = ip_neighbor_get (ipne->ipne_index);
+
+ if (NULL == ipn)
+ /* Client can cancel, die, etc. */
+ return;
+
+ /* Customer(s) requesting event for this neighbor */
+ reg = vl_api_client_index_to_registration (ipne->ipne_watch.ipw_client);
+ if (!reg)
+ return;
+
+ if (vl_api_can_send_msg (reg))
+ {
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IP_NEIGHBOR_EVENT + REPLY_MSG_ID_BASE);
+ mp->client_index = ipne->ipne_watch.ipw_client;
+ mp->pid = ipne->ipne_watch.ipw_pid;
+
+ ip_neighbor_encode (&mp->neighbor, ipn);
+
+ vl_api_send_msg (reg, (u8 *) mp);
+ }
+ else
+ {
+ static f64 last_time;
+ /*
+ * Throttle syslog msgs.
+ * It's pretty tempting to just revoke the registration...
+ */
+ if (vlib_time_now (vlib_get_main ()) > last_time + 10.0)
+ {
+ clib_warning ("ip6 nd event for %U to pid %d: queue stuffed!",
+ format_ip46_address, &ipn->ipn_key->ipnk_ip,
+ IP46_TYPE_ANY, ipne->ipne_watch.ipw_pid);
+ last_time = vlib_time_now (vlib_get_main ());
+ }
+ }
+}
+
+typedef struct ip_neighbor_dump_ctx_t_
+{
+ vl_api_registration_t *reg;
+ u32 context;
+} ip_neighbor_dump_ctx_t;
+
+static walk_rc_t
+send_ip_neighbor_details (index_t ipni, void *arg)
+{
+ ip_neighbor_dump_ctx_t *ctx = arg;
+ vl_api_ip_neighbor_details_t *mp;
+ ip_neighbor_t *ipn;
+
+ ipn = ip_neighbor_get (ipni);
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IP_NEIGHBOR_DETAILS + REPLY_MSG_ID_BASE);
+ mp->context = ctx->context;
+ ip_neighbor_encode (&mp->neighbor, ipn);
+
+ vl_api_send_msg (ctx->reg, (u8 *) mp);
+
+ return (WALK_CONTINUE);
+}
+
+static void
+vl_api_ip_neighbor_dump_t_handler (vl_api_ip_neighbor_dump_t * mp)
+{
+ vl_api_registration_t *reg;
+ ip_address_family_t af;
+ int rv;
+
+ reg = vl_api_client_index_to_registration (mp->client_index);
+ if (!reg)
+ return;
+
+ u32 sw_if_index = ntohl (mp->sw_if_index);
+
+ rv = ip_address_family_decode (mp->af, &af);
+
+ if (rv)
+ return;
+
+ ip_neighbor_dump_ctx_t ctx = {
+ .reg = reg,
+ .context = mp->context,
+ };
+
+ // walk all neighbours on all interfaces
+ ip_neighbor_walk ((af == AF_IP4 ?
+ IP46_TYPE_IP4 :
+ IP46_TYPE_IP6),
+ sw_if_index, send_ip_neighbor_details, &ctx);
+}
+
+static ip_neighbor_flags_t
+ip_neighbor_flags_decode (vl_api_ip_neighbor_flags_t v)
+{
+ ip_neighbor_flags_t f = IP_NEIGHBOR_FLAG_NONE;
+
+ if (v & IP_API_NEIGHBOR_FLAG_STATIC)
+ f |= IP_NEIGHBOR_FLAG_STATIC;
+ if (v & IP_API_NEIGHBOR_FLAG_NO_FIB_ENTRY)
+ f |= IP_NEIGHBOR_FLAG_NO_FIB_ENTRY;
+
+ return (f);
+}
+
+static void
+vl_api_ip_neighbor_add_del_t_handler (vl_api_ip_neighbor_add_del_t * mp,
+ vlib_main_t * vm)
+{
+ vl_api_ip_neighbor_add_del_reply_t *rmp;
+ ip_neighbor_flags_t flags;
+ u32 stats_index = ~0;
+ ip46_address_t ip = ip46_address_initializer;
+ mac_address_t mac;
+ ip46_type_t type;
+ int rv;
+
+ VALIDATE_SW_IF_INDEX ((&mp->neighbor));
+
+ flags = ip_neighbor_flags_decode (mp->neighbor.flags);
+ type = ip_address_decode (&mp->neighbor.ip_address, &ip);
+ mac_address_decode (mp->neighbor.mac_address, &mac);
+
+ /* must be static or dynamic, default to dynamic */
+ if (!(flags & IP_NEIGHBOR_FLAG_STATIC) &&
+ !(flags & IP_NEIGHBOR_FLAG_DYNAMIC))
+ flags |= IP_NEIGHBOR_FLAG_DYNAMIC;
+
+ /*
+ * there's no validation here of the ND/ARP entry being added.
+ * The expectation is that the FIB will ensure that nothing bad
+ * will come of adding bogus entries.
+ */
+ if (mp->is_add)
+ rv = ip_neighbor_add (&ip, type, &mac,
+ ntohl (mp->neighbor.sw_if_index),
+ flags, &stats_index);
+ else
+ rv = ip_neighbor_del (&ip, type, ntohl (mp->neighbor.sw_if_index));
+
+ BAD_SW_IF_INDEX_LABEL;
+
+ /* *INDENT-OFF* */
+ REPLY_MACRO2 (VL_API_IP_NEIGHBOR_ADD_DEL_REPLY,
+ ({
+ rmp->stats_index = htonl (stats_index);
+ }));
+ /* *INDENT-ON* */
+}
+
+static void
+vl_api_want_ip_neighbor_events_t_handler (vl_api_want_ip_neighbor_events_t *
+ mp)
+{
+ vl_api_want_ip_neighbor_events_reply_t *rmp;
+ ip46_address_t ip;
+ ip46_type_t itype;
+ int rv = 0;
+
+ if (mp->sw_if_index != ~0)
+ VALIDATE_SW_IF_INDEX (mp);
+ itype = ip_address_decode (&mp->ip, &ip);
+
+ ip_neighbor_watcher_t watch = {
+ .ipw_client = mp->client_index,
+ .ipw_pid = mp->pid,
+ };
+
+ if (mp->enable)
+ ip_neighbor_watch (&ip, itype, ntohl (mp->sw_if_index), &watch);
+ else
+ ip_neighbor_unwatch (&ip, itype, ntohl (mp->sw_if_index), &watch);
+
+ BAD_SW_IF_INDEX_LABEL;
+ REPLY_MACRO (VL_API_WANT_IP_NEIGHBOR_EVENTS_REPLY);
+}
+
+static void
+vl_api_ip_neighbor_config_t_handler (vl_api_ip_neighbor_config_t * mp)
+{
+ vl_api_ip_neighbor_config_reply_t *rmp;
+ ip_address_family_t af;
+ int rv;
+
+ rv = ip_address_family_decode (mp->af, &af);
+
+ if (!rv)
+ rv = ip_neighbor_config (ip46_type_from_af (af),
+ ntohl (mp->max_number),
+ ntohl (mp->max_age), mp->recycle);
+
+ REPLY_MACRO (VL_API_IP_NEIGHBOR_CONFIG_REPLY);
+}
+
+#define vl_msg_name_crc_list
+#include <vnet/ip-neighbor/ip_neighbor.api.h>
+#undef vl_msg_name_crc_list
+
+#include <vnet/ip-neighbor/ip_neighbor.api.c>
+
+static clib_error_t *
+ip_neighbor_api_init (vlib_main_t * vm)
+{
+ /* Ask for a correctly-sized block of API message decode slots */
+ msg_id_base = setup_message_id_table ();
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (ip_neighbor_api_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff