- vpe_api_main_t *vam = &vpe_api_main;
- vnet_main_t *vnm = vam->vnet_main;
- vlib_main_t *vm = vam->vlib_main;
- vl_api_ip6_nd_event_t *event;
- vl_api_ip6_nd_event_t *mp;
- vl_api_registration_t *reg;
-
- /* Client can cancel, die, etc. */
- if (pool_is_free_index (vam->nd_events, pool_index))
- return;
-
- event = pool_elt_at_index (vam->nd_events, pool_index);
-
- reg = vl_api_client_index_to_registration (event->client_index);
- if (!reg)
- {
- (void) vnet_add_del_ip6_nd_change_event
- (vnm, nd_change_delete_callback,
- event->pid, event->ip,
- ip_resolver_process_node.index, IP6_ND_EVENT,
- ~0 /* pool index, notused */ , 0 /* is_add */ );
- return;
- }
-
- if (vl_api_can_send_msg (reg))
- {
- mp = vl_msg_api_alloc (sizeof (*mp));
- clib_memcpy (mp, event, sizeof (*mp));
- 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 (vm) > last_time + 10.0)
- {
- clib_warning ("ip6 nd event for %U to pid %d: queue stuffed!",
- format_ip6_address, event->ip, event->pid);
- last_time = vlib_time_now (vm);
- }
- }
-}
-
-static uword
-resolver_process (vlib_main_t * vm,
- vlib_node_runtime_t * rt, vlib_frame_t * f)
-{
- volatile f64 timeout = 100.0;
- volatile uword *event_data = 0;
-
- while (1)
- {
- vlib_process_wait_for_event_or_clock (vm, timeout);
-
- uword event_type =
- vlib_process_get_events (vm, (uword **) & event_data);
-
- int i;
- switch (event_type)
- {
- case IP4_ARP_EVENT:
- for (i = 0; i < vec_len (event_data); i++)
- handle_ip4_arp_event (event_data[i]);
- break;
-
- case IP6_ND_EVENT:
- for (i = 0; i < vec_len (event_data); i++)
- handle_ip6_nd_event (event_data[i]);
- break;
-
- case ~0: /* timeout */
- break;
- }
-
- vec_reset_length (event_data);
- }
- return 0; /* or not */
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip_resolver_process_node,static) = {
- .function = resolver_process,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "ip-route-resolver-process",
-};
-/* *INDENT-ON* */
-
-static int
-nd_change_data_callback (u32 pool_index, const mac_address_t * new_mac,
- u32 sw_if_index, const ip6_address_t * address)
-{
- vpe_api_main_t *am = &vpe_api_main;
- vl_api_ip6_nd_event_t *event;
-
- if (pool_is_free_index (am->nd_events, pool_index))
- return 1;
-
- event = pool_elt_at_index (am->nd_events, pool_index);
- if (ethernet_mac_address_equal (event->mac, new_mac->bytes) &&
- sw_if_index == ntohl (event->sw_if_index))
- {
- return 1;
- }
-
- mac_address_encode (new_mac, event->mac);
- event->sw_if_index = htonl (sw_if_index);
- return 0;
-}
-
-static vlib_node_registration_t wc_arp_process_node;
-
-enum
-{ WC_ARP_REPORT, WC_ND_REPORT, RA_REPORT, REPORT_MAX };
-
-static uword
-wc_arp_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
-{
- /* These cross the longjmp boundary (vlib_process_wait_for_event)
- * and need to be volatile - to prevent them from being optimized into
- * a register - which could change during suspension */
-
- volatile wc_arp_report_t arp_prev = { 0 };
- volatile wc_nd_report_t nd_prev = { 0 };
- volatile f64 last_arp = vlib_time_now (vm);
- volatile f64 last_nd = vlib_time_now (vm);
-
- while (1)
- {
- vlib_process_wait_for_event (vm);
- uword event_type = WC_ARP_REPORT;
- void *event_data = vlib_process_get_event_data (vm, &event_type);
-
- f64 now = vlib_time_now (vm);
- int i;
- if (event_type == WC_ARP_REPORT)
- {
- wc_arp_report_t *arp_events = event_data;
- for (i = 0; i < vec_len (arp_events); i++)
- {
- /* discard dup event - cast away volatile */
- if (arp_prev.ip.as_u32 == arp_events[i].ip.as_u32 &&
- mac_address_equal ((const mac_address_t *) &arp_prev.mac,
- &arp_events[i].mac) &&
- arp_prev.sw_if_index == arp_events[i].sw_if_index &&
- (now - last_arp) < 10.0)
- {
- continue;
- }
- arp_prev = arp_events[i];
- last_arp = now;
- vpe_client_registration_t *reg;
- /* *INDENT-OFF* */
- pool_foreach(reg, vpe_api_main.wc_ip4_arp_events_registrations,
- ({
- vl_api_registration_t *vl_reg;
- vl_reg = vl_api_client_index_to_registration (reg->client_index);
- ASSERT (vl_reg != NULL);
- if (reg && vl_api_can_send_msg (vl_reg))
- {
- vl_api_ip4_arp_event_t * event = vl_msg_api_alloc (sizeof *event);
- clib_memset (event, 0, sizeof *event);
- event->_vl_msg_id = htons (VL_API_IP4_ARP_EVENT);
- event->client_index = reg->client_index;
- event->pid = reg->client_pid;
- event->mac_ip = 1;
- ip4_address_encode(&arp_events[i].ip, event->ip);
- event->sw_if_index = htonl(arp_events[i].sw_if_index);
- mac_address_encode(&arp_events[i].mac, event->mac);
- vl_api_send_msg (vl_reg, (u8 *) event);
- }
- }));
- /* *INDENT-ON* */
- }
- }
- else if (event_type == WC_ND_REPORT)
- {
- wc_nd_report_t *nd_events = event_data;
- for (i = 0; i < vec_len (nd_events); i++)
- {
- /* discard dup event - cast away volatile */
- if (ip6_address_is_equal ((const ip6_address_t *) &nd_prev.ip6,
- &nd_events[i].ip6)
- && mac_address_equal ((const mac_address_t *) &nd_prev.mac,
- &nd_events[i].mac)
- && nd_prev.sw_if_index == nd_events[i].sw_if_index
- && (now - last_nd) < 10.0)
- {
- continue;
- }
- nd_prev = nd_events[i];
- last_nd = now;
- vpe_client_registration_t *reg;
- /* *INDENT-OFF* */
- pool_foreach(reg, vpe_api_main.wc_ip6_nd_events_registrations,
- ({
- vl_api_registration_t *vl_reg;
- vl_reg = vl_api_client_index_to_registration (reg->client_index);
- if (vl_reg && vl_api_can_send_msg (vl_reg))
- {
- vl_api_ip6_nd_event_t * event = vl_msg_api_alloc (sizeof *event);
- clib_memset (event, 0, sizeof *event);
- event->_vl_msg_id = htons (VL_API_IP6_ND_EVENT);
- event->client_index = reg->client_index;
- event->pid = reg->client_pid;
- event->mac_ip = 1;
- ip6_address_encode(&nd_events[i].ip6, event->ip);
- event->sw_if_index = htonl(nd_events[i].sw_if_index);
- mac_address_encode(&nd_events[i].mac, event->mac);
- vl_api_send_msg (vl_reg, (u8 *) event);
- }
- }));
- /* *INDENT-ON* */
- }
- }
- else if (event_type == RA_REPORT)
- {
- ra_report_t *ra_events = event_data;
- for (i = 0; i < vec_len (ra_events); i++)
- {
- ip6_neighbor_public_main_t *npm = &ip6_neighbor_public_main;
- call_ip6_neighbor_callbacks (&ra_events[i],
- npm->ra_report_functions);
-
- vpe_client_registration_t *reg;
- /* *INDENT-OFF* */
- pool_foreach(reg, vpe_api_main.ip6_ra_events_registrations,
- ({
- vl_api_registration_t *vl_reg;
- vl_reg =
- vl_api_client_index_to_registration (reg->client_index);
- if (vl_reg && vl_api_can_send_msg (vl_reg))
- {
- u32 event_size =
- sizeof (vl_api_ip6_ra_event_t) +
- vec_len (ra_events[i].prefixes) *
- sizeof (vl_api_ip6_ra_prefix_info_t);
- vl_api_ip6_ra_event_t *event =
- vl_msg_api_alloc (event_size);
- clib_memset (event, 0, event_size);
- event->_vl_msg_id = htons (VL_API_IP6_RA_EVENT);
- event->client_index = reg->client_index;
- event->pid = reg->client_pid;
-
- event->sw_if_index = clib_host_to_net_u32 (ra_events[i].sw_if_index);
-
- ip6_address_encode (&ra_events[i].router_address,
- event->router_addr);
-
- event->current_hop_limit = ra_events[i].current_hop_limit;
- event->flags = ra_events[i].flags;
- event->router_lifetime_in_sec =
- clib_host_to_net_u16 (ra_events
- [i].router_lifetime_in_sec);
- event->neighbor_reachable_time_in_msec =
- clib_host_to_net_u32 (ra_events
- [i].neighbor_reachable_time_in_msec);
- event->time_in_msec_between_retransmitted_neighbor_solicitations
- =
- clib_host_to_net_u32 (ra_events
- [i].time_in_msec_between_retransmitted_neighbor_solicitations);
-
- event->n_prefixes =
- clib_host_to_net_u32 (vec_len (ra_events[i].prefixes));
- vl_api_ip6_ra_prefix_info_t *prefix =
- (typeof (prefix)) event->prefixes;
- u32 j;
- for (j = 0; j < vec_len (ra_events[i].prefixes); j++)
- {
- ra_report_prefix_info_t *info =
- &ra_events[i].prefixes[j];
- ip_prefix_encode(&info->prefix, &prefix->prefix);
- prefix->flags = info->flags;
- prefix->valid_time =
- clib_host_to_net_u32 (info->valid_time);
- prefix->preferred_time =
- clib_host_to_net_u32 (info->preferred_time);
- prefix++;
- }
-
- vl_api_send_msg (vl_reg, (u8 *) event);
- }
- }));
- /* *INDENT-ON* */
- vec_free (ra_events[i].prefixes);
- }
- }
- vlib_process_put_event_data (vm, event_data);
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (wc_arp_process_node,static) = {
- .function = wc_arp_process,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "wildcard-ip4-arp-publisher-process",
-};
-/* *INDENT-ON* */
-
-static int
-arp_change_data_callback (u32 pool_index,
- const mac_address_t * mac,
- u32 sw_if_index, const ip4_address_t * address)
-{
- vpe_api_main_t *am = &vpe_api_main;
- vl_api_ip4_arp_event_t *event;
-
- if (pool_is_free_index (am->arp_events, pool_index))
- return 1;
-
- event = pool_elt_at_index (am->arp_events, pool_index);
- if (ethernet_mac_address_equal (event->mac, mac->bytes) &&
- sw_if_index == ntohl (event->sw_if_index))
- {
- return 1;
- }
-
- mac_address_encode (mac, event->mac);
- event->sw_if_index = htonl (sw_if_index);
- return 0;
-}
-
-static void
-vl_api_want_ip4_arp_events_t_handler (vl_api_want_ip4_arp_events_t * mp)
-{
- vpe_api_main_t *am = &vpe_api_main;
- vnet_main_t *vnm = vnet_get_main ();
- vl_api_want_ip4_arp_events_reply_t *rmp;
- ip4_address_t ip;