dhcp: Move to plugin

Type: feature

Change-Id: I3fe27a8ef577741d9a5c4f090ec91cf68fb44fe3
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 0 insertions, 665 deletions

diff --git a/src/vnet/dhcp/dhcp6_pd_client_dp.c b/src/vnet/dhcp/dhcp6_pd_client_dp.c
deleted file mode 100644
index c665b17281a..00000000000
--- a/src/vnet/dhcp/dhcp6_pd_client_dp.c
+++ /dev/null
@@ -1,665 +0,0 @@
-/*
- * Copyright (c) 2018 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 <vlib/vlib.h>
-#include <vnet/dhcp/dhcp6_packet.h>
-#include <vnet/dhcp/dhcp_proxy.h>
-#include <vnet/mfib/mfib_table.h>
-#include <vnet/mfib/ip6_mfib.h>
-#include <vnet/fib/fib.h>
-#include <vnet/adj/adj_mcast.h>
-#include <vnet/ip/ip6_neighbor.h>
-#include <vlibapi/api_common.h>
-#include <vlibmemory/api.h>
-#include <vnet/dhcp/dhcp6_pd_client_dp.h>
-#include <vnet/dhcp/dhcp6_client_common_dp.h>
-#include <vnet/ip/ip_types_api.h>
-
-#include <vnet/vnet_msg_enum.h>
-
-#define vl_typedefs		/* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_typedefs
-
-#define vl_endianfun		/* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_endianfun
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
-#define vl_printfun
-#include <vnet/vnet_all_api_h.h>
-#undef vl_printfun
-
-#include <vlibapi/api_helper_macros.h>
-
-dhcp6_pd_client_main_t dhcp6_pd_client_main;
-dhcp6_pd_client_public_main_t dhcp6_pd_client_public_main;
-
-static void
-signal_report (prefix_report_t * r)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  dhcp6_pd_client_main_t *cm = &dhcp6_pd_client_main;
-  uword ni = cm->publisher_node;
-  uword et = cm->publisher_et;
-
-  if (ni == (uword) ~ 0)
-    return;
-  prefix_report_t *q =
-    vlib_process_signal_event_data (vm, ni, et, 1, sizeof *q);
-
-  *q = *r;
-}
-
-int
-dhcp6_pd_publish_report (prefix_report_t * r)
-{
-  void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
-  vl_api_rpc_call_main_thread (signal_report, (u8 *) r, sizeof *r);
-  return 0;
-}
-
-void
-dhcp6_pd_set_publisher_node (uword node_index, uword event_type)
-{
-  dhcp6_pd_client_main_t *cm = &dhcp6_pd_client_main;
-  cm->publisher_node = node_index;
-  cm->publisher_et = event_type;
-}
-
-static void
-stop_sending_client_message (vlib_main_t * vm,
-			     dhcp6_pd_client_state_t * client_state)
-{
-  u32 bi0;
-
-  client_state->keep_sending_client_message = 0;
-  vec_free (client_state->params.prefixes);
-  if (client_state->buffer)
-    {
-      bi0 = vlib_get_buffer_index (vm, client_state->buffer);
-      vlib_buffer_free (vm, &bi0, 1);
-      client_state->buffer = 0;
-      adj_unlock (client_state->adj_index);
-      client_state->adj_index = ~0;
-    }
-}
-
-static vlib_buffer_t *
-create_buffer_for_client_message (vlib_main_t * vm,
-				  u32 sw_if_index,
-				  dhcp6_pd_client_state_t
-				  * client_state, u32 type)
-{
-  dhcp6_client_common_main_t *ccm = &dhcp6_client_common_main;
-  vnet_main_t *vnm = vnet_get_main ();
-
-  vlib_buffer_t *b;
-  u32 bi;
-  ip6_header_t *ip;
-  udp_header_t *udp;
-  dhcpv6_header_t *dhcp;
-  ip6_address_t src_addr;
-  u32 dhcp_opt_len = 0;
-  client_state->transaction_start = vlib_time_now (vm);
-  u32 n_prefixes;
-  u32 i;
-
-  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
-  vnet_sw_interface_t *sup_sw = vnet_get_sup_sw_interface (vnm, sw_if_index);
-  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
-
-  /* Interface(s) down? */
-  if ((hw->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
-    return NULL;
-  if ((sup_sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
-    return NULL;
-  if ((sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
-    return NULL;
-
-  /* Get a link-local address */
-  src_addr = ip6_neighbor_get_link_local_address (sw_if_index);
-
-  if (src_addr.as_u8[0] != 0xfe)
-    {
-      clib_warning ("Could not find source address to send DHCPv6 packet");
-      return NULL;
-    }
-
-  if (vlib_buffer_alloc (vm, &bi, 1) != 1)
-    {
-      clib_warning ("Buffer allocation failed");
-      return NULL;
-    }
-
-  b = vlib_get_buffer (vm, bi);
-  vnet_buffer (b)->sw_if_index[VLIB_RX] = sw_if_index;
-  vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index;
-  client_state->adj_index = adj_mcast_add_or_lock (FIB_PROTOCOL_IP6,
-						   VNET_LINK_IP6,
-						   sw_if_index);
-  vnet_buffer (b)->ip.adj_index[VLIB_TX] = client_state->adj_index;
-  b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
-
-  ip = (ip6_header_t *) vlib_buffer_get_current (b);
-  udp = (udp_header_t *) (ip + 1);
-  dhcp = (dhcpv6_header_t *) (udp + 1);
-
-  ip->src_address = src_addr;
-  ip->hop_limit = 255;
-  ip->ip_version_traffic_class_and_flow_label =
-    clib_host_to_net_u32 (0x6 << 28);
-  ip->payload_length = 0;
-  ip->protocol = IP_PROTOCOL_UDP;
-
-  udp->src_port = clib_host_to_net_u16 (DHCPV6_CLIENT_PORT);
-  udp->dst_port = clib_host_to_net_u16 (DHCPV6_SERVER_PORT);
-  udp->checksum = 0;
-  udp->length = 0;
-
-  dhcp->msg_type = type;
-  dhcp->xid[0] = (client_state->transaction_id & 0x00ff0000) >> 16;
-  dhcp->xid[1] = (client_state->transaction_id & 0x0000ff00) >> 8;
-  dhcp->xid[2] = (client_state->transaction_id & 0x000000ff) >> 0;
-
-  void *d = (void *) dhcp->data;
-  dhcpv6_option_t *duid;
-  dhcpv6_elapsed_t *elapsed;
-  dhcpv6_ia_header_t *ia_hdr;
-  dhcpv6_ia_opt_pd_t *opt_pd;
-  if (type == DHCPV6_MSG_SOLICIT || type == DHCPV6_MSG_REQUEST ||
-      type == DHCPV6_MSG_RENEW || type == DHCPV6_MSG_REBIND ||
-      type == DHCPV6_MSG_RELEASE)
-    {
-      duid = (dhcpv6_option_t *) d;
-      duid->option = clib_host_to_net_u16 (DHCPV6_OPTION_CLIENTID);
-      duid->length = clib_host_to_net_u16 (CLIENT_DUID_LENGTH);
-      clib_memcpy (duid + 1, client_duid.bin_string, CLIENT_DUID_LENGTH);
-      d += sizeof (*duid) + CLIENT_DUID_LENGTH;
-
-      if (client_state->params.server_index != ~0)
-	{
-	  server_id_t *se =
-	    &ccm->server_ids[client_state->params.server_index];
-
-	  duid = (dhcpv6_option_t *) d;
-	  duid->option = clib_host_to_net_u16 (DHCPV6_OPTION_SERVERID);
-	  duid->length = clib_host_to_net_u16 (se->len);
-	  clib_memcpy (duid + 1, se->data, se->len);
-	  d += sizeof (*duid) + se->len;
-	}
-
-      elapsed = (dhcpv6_elapsed_t *) d;
-      elapsed->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_ELAPSED_TIME);
-      elapsed->opt.length =
-	clib_host_to_net_u16 (sizeof (*elapsed) - sizeof (elapsed->opt));
-      elapsed->elapsed_10ms = 0;
-      client_state->elapsed_pos =
-	(char *) &elapsed->elapsed_10ms -
-	(char *) vlib_buffer_get_current (b);
-      d += sizeof (*elapsed);
-
-      ia_hdr = (dhcpv6_ia_header_t *) d;
-      ia_hdr->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_IA_PD);
-      ia_hdr->iaid = clib_host_to_net_u32 (DHCPV6_CLIENT_IAID);
-      ia_hdr->t1 = clib_host_to_net_u32 (client_state->params.T1);
-      ia_hdr->t2 = clib_host_to_net_u32 (client_state->params.T2);
-      d += sizeof (*ia_hdr);
-
-      n_prefixes = vec_len (client_state->params.prefixes);
-
-      ia_hdr->opt.length =
-	clib_host_to_net_u16 (sizeof (*ia_hdr) +
-			      n_prefixes * sizeof (*opt_pd) -
-			      sizeof (ia_hdr->opt));
-
-      for (i = 0; i < n_prefixes; i++)
-	{
-	  dhcp6_pd_send_client_message_params_prefix_t *pref =
-	    &client_state->params.prefixes[i];
-	  opt_pd = (dhcpv6_ia_opt_pd_t *) d;
-	  opt_pd->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_IAPREFIX);
-	  opt_pd->opt.length =
-	    clib_host_to_net_u16 (sizeof (*opt_pd) - sizeof (opt_pd->opt));
-	  opt_pd->addr = pref->prefix;
-	  opt_pd->prefix = pref->prefix_length;
-	  opt_pd->valid = clib_host_to_net_u32 (pref->valid_lt);
-	  opt_pd->preferred = clib_host_to_net_u32 (pref->preferred_lt);
-	  d += sizeof (*opt_pd);
-	}
-    }
-  else
-    {
-      clib_warning ("State not implemented");
-    }
-
-  dhcp_opt_len = ((u8 *) d) - dhcp->data;
-  udp->length =
-    clib_host_to_net_u16 (sizeof (*udp) + sizeof (*dhcp) + dhcp_opt_len);
-  ip->payload_length = udp->length;
-  b->current_length =
-    sizeof (*ip) + sizeof (*udp) + sizeof (*dhcp) + dhcp_opt_len;
-
-  ip->dst_address = all_dhcp6_relay_agents_and_servers;
-
-  return b;
-}
-
-static inline u8
-check_pd_send_client_message (vlib_main_t * vm,
-			      dhcp6_pd_client_state_t * client_state,
-			      f64 current_time, f64 * due_time)
-{
-  vlib_buffer_t *p0;
-  vlib_frame_t *f;
-  u32 *to_next;
-  u32 next_index;
-  vlib_buffer_t *c0;
-  ip6_header_t *ip;
-  udp_header_t *udp;
-  u32 ci0;
-  int bogus_length = 0;
-
-  dhcp6_pd_send_client_message_params_t *params;
-
-  f64 now = vlib_time_now (vm);
-
-  if (!client_state->keep_sending_client_message)
-    return false;
-
-  params = &client_state->params;
-
-  if (client_state->due_time > current_time)
-    {
-      *due_time = client_state->due_time;
-      return true;
-    }
-
-  p0 = client_state->buffer;
-
-  next_index = ip6_rewrite_mcast_node.index;
-
-  c0 = vlib_buffer_copy (vm, p0);
-  ci0 = vlib_get_buffer_index (vm, c0);
-
-  ip = (ip6_header_t *) vlib_buffer_get_current (c0);
-  udp = (udp_header_t *) (ip + 1);
-
-  u16 *elapsed_field = (u16 *) ((void *) ip + client_state->elapsed_pos);
-  *elapsed_field =
-    clib_host_to_net_u16 ((u16)
-			  ((now - client_state->transaction_start) * 100));
-
-  udp->checksum = 0;
-  udp->checksum =
-    ip6_tcp_udp_icmp_compute_checksum (vm, 0, ip, &bogus_length);
-
-  f = vlib_get_frame_to_node (vm, next_index);
-  to_next = vlib_frame_vector_args (f);
-  to_next[0] = ci0;
-  f->n_vectors = 1;
-  vlib_put_frame_to_node (vm, next_index, f);
-
-  if (params->mrc != 0 && --client_state->n_left == 0)
-    stop_sending_client_message (vm, client_state);
-  else
-    {
-      client_state->sleep_interval =
-	(2 + random_f64_from_to (-0.1, 0.1)) * client_state->sleep_interval;
-      if (client_state->sleep_interval > params->mrt)
-	client_state->sleep_interval =
-	  (1 + random_f64_from_to (-0.1, 0.1)) * params->mrt;
-
-      client_state->due_time = current_time + client_state->sleep_interval;
-
-      if (params->mrd != 0
-	  && current_time > client_state->start_time + params->mrd)
-	stop_sending_client_message (vm, client_state);
-      else
-	*due_time = client_state->due_time;
-    }
-
-  return client_state->keep_sending_client_message;
-}
-
-static uword
-send_dhcp6_pd_client_message_process (vlib_main_t * vm,
-				      vlib_node_runtime_t * rt,
-				      vlib_frame_t * f0)
-{
-  dhcp6_pd_client_main_t *cm = &dhcp6_pd_client_main;
-  dhcp6_pd_client_state_t *client_state;
-  uword *event_data = 0;
-  f64 sleep_time = 1e9;
-  f64 current_time;
-  f64 due_time;
-  f64 dt = 0;
-  int i;
-
-  while (true)
-    {
-      vlib_process_wait_for_event_or_clock (vm, sleep_time);
-      vlib_process_get_events (vm, &event_data);
-      vec_reset_length (event_data);
-
-      current_time = vlib_time_now (vm);
-      do
-	{
-	  due_time = current_time + 1e9;
-	  for (i = 0; i < vec_len (cm->client_state_by_sw_if_index); i++)
-	    {
-	      client_state = &cm->client_state_by_sw_if_index[i];
-	      if (!client_state->entry_valid)
-		continue;
-	      if (check_pd_send_client_message
-		  (vm, client_state, current_time, &dt) && (dt < due_time))
-		due_time = dt;
-	    }
-	  current_time = vlib_time_now (vm);
-	}
-      while (due_time < current_time);
-
-      sleep_time = due_time - current_time;
-    }
-
-  return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (send_dhcp6_pd_client_message_process_node, static) = {
-    .function = send_dhcp6_pd_client_message_process,
-    .type = VLIB_NODE_TYPE_PROCESS,
-    .name = "send-dhcp6-pd-client-message-process",
-};
-/* *INDENT-ON* */
-
-void
-dhcp6_pd_send_client_message (vlib_main_t * vm, u32 sw_if_index, u8 stop,
-			      dhcp6_pd_send_client_message_params_t * params)
-{
-  dhcp6_pd_client_main_t *cm = &dhcp6_pd_client_main;
-  dhcp6_pd_client_state_t *client_state = 0;
-  dhcp6_pd_client_state_t empty_state = {
-    0,
-  };
-
-  ASSERT (~0 != sw_if_index);
-
-  vec_validate_init_empty (cm->client_state_by_sw_if_index, sw_if_index,
-			   empty_state);
-  client_state = &cm->client_state_by_sw_if_index[sw_if_index];
-  if (!client_state->entry_valid)
-    {
-      client_state->entry_valid = 1;
-      client_state->adj_index = ~0;
-    }
-
-  stop_sending_client_message (vm, client_state);
-
-  if (!stop)
-    {
-      client_state->keep_sending_client_message = 1;
-      vec_free (client_state->params.prefixes);
-      client_state->params = *params;
-      client_state->params.prefixes = vec_dup (params->prefixes);
-      client_state->n_left = params->mrc;
-      client_state->start_time = vlib_time_now (vm);
-      client_state->sleep_interval =
-	(1 + random_f64_from_to (-0.1, 0.1)) * params->irt;
-      client_state->due_time = 0;	/* send first packet ASAP */
-      client_state->transaction_id = random_u32 (&cm->seed) & 0x00ffffff;
-      client_state->buffer =
-	create_buffer_for_client_message (vm, sw_if_index, client_state,
-					  params->msg_type);
-      if (!client_state->buffer)
-	client_state->keep_sending_client_message = 0;
-      else
-	vlib_process_signal_event (vm,
-				   send_dhcp6_pd_client_message_process_node.index,
-				   1, 0);
-    }
-}
-
-void
-  vl_api_dhcp6_pd_send_client_message_t_handler
-  (vl_api_dhcp6_pd_send_client_message_t * mp)
-{
-  vl_api_dhcp6_pd_send_client_message_reply_t *rmp;
-  dhcp6_pd_send_client_message_params_t params;
-  vlib_main_t *vm = vlib_get_main ();
-  u32 n_prefixes;
-  u32 i;
-  int rv = 0;
-
-  VALIDATE_SW_IF_INDEX (mp);
-
-  BAD_SW_IF_INDEX_LABEL;
-  REPLY_MACRO (VL_API_DHCP6_PD_SEND_CLIENT_MESSAGE_REPLY);
-
-  if (rv != 0)
-    return;
-
-  params.sw_if_index = ntohl (mp->sw_if_index);
-  params.server_index = ntohl (mp->server_index);
-  params.irt = ntohl (mp->irt);
-  params.mrt = ntohl (mp->mrt);
-  params.mrc = ntohl (mp->mrc);
-  params.mrd = ntohl (mp->mrd);
-  params.msg_type = ntohl (mp->msg_type);
-  params.T1 = ntohl (mp->T1);
-  params.T2 = ntohl (mp->T2);
-  n_prefixes = ntohl (mp->n_prefixes);
-  params.prefixes = 0;
-  if (n_prefixes > 0)
-    vec_validate (params.prefixes, n_prefixes - 1);
-  for (i = 0; i < n_prefixes; i++)
-    {
-      vl_api_dhcp6_pd_prefix_info_t *pi = &mp->prefixes[i];
-      dhcp6_pd_send_client_message_params_prefix_t *pref =
-	&params.prefixes[i];
-      pref->preferred_lt = ntohl (pi->preferred_time);
-      pref->valid_lt = ntohl (pi->valid_time);
-      ip6_address_decode (pi->prefix.address, &pref->prefix);
-      pref->prefix_length = pi->prefix.len;
-    }
-
-  dhcp6_pd_send_client_message (vm, ntohl (mp->sw_if_index), mp->stop,
-				&params);
-}
-
-static clib_error_t *
-call_dhcp6_pd_reply_event_callbacks (void *data,
-				     _vnet_dhcp6_pd_reply_event_function_list_elt_t
-				     * elt)
-{
-  clib_error_t *error = 0;
-
-  while (elt)
-    {
-      error = elt->fp (data);
-      if (error)
-	return error;
-      elt = elt->next_dhcp6_pd_reply_event_function;
-    }
-
-  return error;
-}
-
-static uword
-dhcp6_pd_reply_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 */
-
-  while (1)
-    {
-      vlib_process_wait_for_event (vm);
-      uword event_type = DHCP6_PD_DP_REPLY_REPORT;
-      void *event_data = vlib_process_get_event_data (vm, &event_type);
-
-      int i;
-      if (event_type == DHCP6_PD_DP_REPLY_REPORT)
-	{
-	  prefix_report_t *events = event_data;
-	  for (i = 0; i < vec_len (events); i++)
-	    {
-	      u32 event_size =
-		sizeof (vl_api_dhcp6_pd_reply_event_t) +
-		vec_len (events[i].prefixes) *
-		sizeof (vl_api_dhcp6_pd_prefix_info_t);
-	      vl_api_dhcp6_pd_reply_event_t *event =
-		clib_mem_alloc (event_size);
-	      clib_memset (event, 0, event_size);
-
-	      event->sw_if_index = htonl (events[i].body.sw_if_index);
-	      event->server_index = htonl (events[i].body.server_index);
-	      event->msg_type = events[i].body.msg_type;
-	      event->T1 = htonl (events[i].body.T1);
-	      event->T2 = htonl (events[i].body.T2);
-	      event->inner_status_code =
-		htons (events[i].body.inner_status_code);
-	      event->status_code = htons (events[i].body.status_code);
-	      event->preference = events[i].body.preference;
-
-	      event->n_prefixes = htonl (vec_len (events[i].prefixes));
-	      vl_api_dhcp6_pd_prefix_info_t *prefix =
-		(typeof (prefix)) event->prefixes;
-	      u32 j;
-	      for (j = 0; j < vec_len (events[i].prefixes); j++)
-		{
-		  dhcp6_prefix_info_t *info = &events[i].prefixes[j];
-		  ip6_address_encode (&info->prefix, prefix->prefix.address);
-		  prefix->prefix.len = info->prefix_length;
-		  prefix->valid_time = htonl (info->valid_time);
-		  prefix->preferred_time = htonl (info->preferred_time);
-		  prefix++;
-		}
-	      vec_free (events[i].prefixes);
-
-	      dhcp6_pd_client_public_main_t *dpcpm =
-		&dhcp6_pd_client_public_main;
-	      call_dhcp6_pd_reply_event_callbacks (event, dpcpm->functions);
-
-	      vpe_client_registration_t *reg;
-              /* *INDENT-OFF* */
-              pool_foreach(reg, vpe_api_main.dhcp6_pd_reply_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_dhcp6_pd_reply_event_t *msg =
-                      vl_msg_api_alloc (event_size);
-                    clib_memcpy (msg, event, event_size);
-                    msg->_vl_msg_id = htons (VL_API_DHCP6_PD_REPLY_EVENT);
-                    msg->client_index = reg->client_index;
-                    msg->pid = reg->client_pid;
-                    vl_api_send_msg (vl_reg, (u8 *) msg);
-                  }
-              }));
-              /* *INDENT-ON* */
-
-	      clib_mem_free (event);
-	    }
-	}
-      vlib_process_put_event_data (vm, event_data);
-    }
-
-  return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dhcp6_pd_reply_process_node) = {
-  .function = dhcp6_pd_reply_process,
-  .type = VLIB_NODE_TYPE_PROCESS,
-  .name = "dhcp6-pd-reply-publisher-process",
-};
-/* *INDENT-ON* */
-
-void
-  vl_api_want_dhcp6_pd_reply_events_t_handler
-  (vl_api_want_dhcp6_pd_reply_events_t * mp)
-{
-  vpe_api_main_t *am = &vpe_api_main;
-  vl_api_want_dhcp6_pd_reply_events_reply_t *rmp;
-  int rv = 0;
-
-  uword *p =
-    hash_get (am->dhcp6_pd_reply_events_registration_hash, mp->client_index);
-  vpe_client_registration_t *rp;
-  if (p)
-    {
-      if (mp->enable_disable)
-	{
-	  clib_warning ("pid %d: already enabled...", ntohl (mp->pid));
-	  rv = VNET_API_ERROR_INVALID_REGISTRATION;
-	  goto reply;
-	}
-      else
-	{
-	  rp =
-	    pool_elt_at_index (am->dhcp6_pd_reply_events_registrations, p[0]);
-	  pool_put (am->dhcp6_pd_reply_events_registrations, rp);
-	  hash_unset (am->dhcp6_pd_reply_events_registration_hash,
-		      mp->client_index);
-	  if (pool_elts (am->dhcp6_pd_reply_events_registrations) == 0)
-	    dhcp6_pd_set_publisher_node (~0, DHCP6_PD_DP_REPORT_MAX);
-	  goto reply;
-	}
-    }
-  if (mp->enable_disable == 0)
-    {
-      clib_warning ("pid %d: already disabled...", ntohl (mp->pid));
-      rv = VNET_API_ERROR_INVALID_REGISTRATION;
-      goto reply;
-    }
-  pool_get (am->dhcp6_pd_reply_events_registrations, rp);
-  rp->client_index = mp->client_index;
-  rp->client_pid = ntohl (mp->pid);
-  hash_set (am->dhcp6_pd_reply_events_registration_hash, rp->client_index,
-	    rp - am->dhcp6_pd_reply_events_registrations);
-  dhcp6_pd_set_publisher_node (dhcp6_pd_reply_process_node.index,
-			       DHCP6_PD_DP_REPLY_REPORT);
-
-reply:
-  REPLY_MACRO (VL_API_WANT_DHCP6_PD_REPLY_EVENTS_REPLY);
-}
-
-static clib_error_t *
-dhcp6_pd_client_init (vlib_main_t * vm)
-{
-  dhcp6_pd_client_main_t *cm = &dhcp6_pd_client_main;
-
-  cm->vlib_main = vm;
-  cm->vnet_main = vnet_get_main ();
-  cm->publisher_node = ~0;
-  cm->seed = (u32) clib_cpu_time_now ();
-
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (dhcp6_pd_client_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */