FD.io VPP  v18.07.1-19-g511ce25
Vector Packet Processing
dhcp6_pd_client_dp.c
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1 /*
2  * Copyright (c) 2018 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <vlib/vlib.h>
17 #include <vnet/dhcp/dhcp6_packet.h>
18 #include <vnet/dhcp/dhcp_proxy.h>
19 #include <vnet/mfib/mfib_table.h>
20 #include <vnet/mfib/ip6_mfib.h>
21 #include <vnet/fib/fib.h>
22 #include <vnet/adj/adj_mcast.h>
23 #include <vnet/ip/ip6_neighbor.h>
24 #include <vlibapi/api_common.h>
25 #include <vlibmemory/api.h>
28 
29 #include <vnet/vnet_msg_enum.h>
30 
31 #define vl_typedefs /* define message structures */
32 #include <vnet/vnet_all_api_h.h>
33 #undef vl_typedefs
34 
35 #define vl_endianfun /* define message structures */
36 #include <vnet/vnet_all_api_h.h>
37 #undef vl_endianfun
38 
39 /* instantiate all the print functions we know about */
40 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
41 #define vl_printfun
42 #include <vnet/vnet_all_api_h.h>
43 #undef vl_printfun
44 
46 
49 
50 static void
52 {
55  uword ni = cm->publisher_node;
56  uword et = cm->publisher_et;
57 
58  if (ni == (uword) ~ 0)
59  return;
60  prefix_report_t *q =
61  vlib_process_signal_event_data (vm, ni, et, 1, sizeof *q);
62 
63  *q = *r;
64 }
65 
66 int
68 {
69  void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
70  vl_api_rpc_call_main_thread (signal_report, (u8 *) r, sizeof *r);
71  return 0;
72 }
73 
74 void
75 dhcp6_pd_set_publisher_node (uword node_index, uword event_type)
76 {
78  cm->publisher_node = node_index;
79  cm->publisher_et = event_type;
80 }
81 
82 static void
84  dhcp6_pd_client_state_t * client_state)
85 {
86  u32 bi0;
87 
88  client_state->keep_sending_client_message = 0;
89  vec_free (client_state->params.prefixes);
90  if (client_state->buffer)
91  {
92  bi0 = vlib_get_buffer_index (vm, client_state->buffer);
93  vlib_buffer_free (vm, &bi0, 1);
94  client_state->buffer = 0;
95  adj_unlock (client_state->adj_index);
96  client_state->adj_index = ~0;
97  }
98 }
99 
100 static vlib_buffer_t *
102  u32 sw_if_index,
104  * client_state, u32 type)
105 {
107  vnet_main_t *vnm = vnet_get_main ();
108 
109  vlib_buffer_t *b;
110  u32 bi;
111  ip6_header_t *ip;
112  udp_header_t *udp;
113  dhcpv6_header_t *dhcp;
114  ip6_address_t src_addr;
115  u32 dhcp_opt_len = 0;
116  client_state->transaction_start = vlib_time_now (vm);
117  u32 n_prefixes;
118  u32 i;
119 
120  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
121  vnet_sw_interface_t *sup_sw = vnet_get_sup_sw_interface (vnm, sw_if_index);
122  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
123 
124  /* Interface(s) down? */
125  if ((hw->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
126  return NULL;
127  if ((sup_sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
128  return NULL;
129  if ((sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
130  return NULL;
131 
132  /* Get a link-local address */
133  src_addr = ip6_neighbor_get_link_local_address (sw_if_index);
134 
135  if (src_addr.as_u8[0] != 0xfe)
136  {
137  clib_warning ("Could not find source address to send DHCPv6 packet");
138  return NULL;
139  }
140 
141  if (vlib_buffer_alloc (vm, &bi, 1) != 1)
142  {
143  clib_warning ("Buffer allocation failed");
144  return NULL;
145  }
146 
147  b = vlib_get_buffer (vm, bi);
148  vnet_buffer (b)->sw_if_index[VLIB_RX] = sw_if_index;
149  vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index;
152  sw_if_index);
153  vnet_buffer (b)->ip.adj_index[VLIB_TX] = client_state->adj_index;
154  b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
155 
157  udp = (udp_header_t *) (ip + 1);
158  dhcp = (dhcpv6_header_t *) (udp + 1);
159 
160  ip->src_address = src_addr;
161  ip->hop_limit = 255;
163  clib_host_to_net_u32 (0x6 << 28);
164  ip->payload_length = 0;
165  ip->protocol = IP_PROTOCOL_UDP;
166 
167  udp->src_port = clib_host_to_net_u16 (DHCPV6_CLIENT_PORT);
168  udp->dst_port = clib_host_to_net_u16 (DHCPV6_SERVER_PORT);
169  udp->checksum = 0;
170  udp->length = 0;
171 
172  dhcp->msg_type = type;
173  dhcp->xid[0] = (client_state->transaction_id & 0x00ff0000) >> 16;
174  dhcp->xid[1] = (client_state->transaction_id & 0x0000ff00) >> 8;
175  dhcp->xid[2] = (client_state->transaction_id & 0x000000ff) >> 0;
176 
177  void *d = (void *) dhcp->data;
178  dhcpv6_option_t *duid;
179  dhcpv6_elapsed_t *elapsed;
180  dhcpv6_ia_header_t *ia_hdr;
181  dhcpv6_ia_opt_pd_t *opt_pd;
182  if (type == DHCPV6_MSG_SOLICIT || type == DHCPV6_MSG_REQUEST ||
183  type == DHCPV6_MSG_RENEW || type == DHCPV6_MSG_REBIND ||
184  type == DHCPV6_MSG_RELEASE)
185  {
186  duid = (dhcpv6_option_t *) d;
187  duid->option = clib_host_to_net_u16 (DHCPV6_OPTION_CLIENTID);
188  duid->length = clib_host_to_net_u16 (CLIENT_DUID_LENGTH);
190  d += sizeof (*duid) + CLIENT_DUID_LENGTH;
191 
192  if (client_state->params.server_index != ~0)
193  {
194  server_id_t *se =
195  &ccm->server_ids[client_state->params.server_index];
196 
197  duid = (dhcpv6_option_t *) d;
198  duid->option = clib_host_to_net_u16 (DHCPV6_OPTION_SERVERID);
199  duid->length = clib_host_to_net_u16 (se->len);
200  clib_memcpy (duid + 1, se->data, se->len);
201  d += sizeof (*duid) + se->len;
202  }
203 
204  elapsed = (dhcpv6_elapsed_t *) d;
205  elapsed->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_ELAPSED_TIME);
206  elapsed->opt.length =
207  clib_host_to_net_u16 (sizeof (*elapsed) - sizeof (elapsed->opt));
208  elapsed->elapsed_10ms = 0;
209  client_state->elapsed_pos =
210  (char *) &elapsed->elapsed_10ms -
211  (char *) vlib_buffer_get_current (b);
212  d += sizeof (*elapsed);
213 
214  ia_hdr = (dhcpv6_ia_header_t *) d;
215  ia_hdr->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_IA_PD);
216  ia_hdr->iaid = clib_host_to_net_u32 (DHCPV6_CLIENT_IAID);
217  ia_hdr->t1 = clib_host_to_net_u32 (client_state->params.T1);
218  ia_hdr->t2 = clib_host_to_net_u32 (client_state->params.T2);
219  d += sizeof (*ia_hdr);
220 
221  n_prefixes = vec_len (client_state->params.prefixes);
222 
223  ia_hdr->opt.length =
224  clib_host_to_net_u16 (sizeof (*ia_hdr) +
225  n_prefixes * sizeof (*opt_pd) -
226  sizeof (ia_hdr->opt));
227 
228  for (i = 0; i < n_prefixes; i++)
229  {
231  &client_state->params.prefixes[i];
232  opt_pd = (dhcpv6_ia_opt_pd_t *) d;
233  opt_pd->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_IAPREFIX);
234  opt_pd->opt.length =
235  clib_host_to_net_u16 (sizeof (*opt_pd) - sizeof (opt_pd->opt));
236  opt_pd->addr = pref->prefix;
237  opt_pd->prefix = pref->prefix_length;
238  opt_pd->valid = clib_host_to_net_u32 (pref->valid_lt);
239  opt_pd->preferred = clib_host_to_net_u32 (pref->preferred_lt);
240  d += sizeof (*opt_pd);
241  }
242  }
243  else
244  {
245  clib_warning ("State not implemented");
246  }
247 
248  dhcp_opt_len = ((u8 *) d) - dhcp->data;
249  udp->length =
250  clib_host_to_net_u16 (sizeof (*udp) + sizeof (*dhcp) + dhcp_opt_len);
251  ip->payload_length = udp->length;
252  b->current_length =
253  sizeof (*ip) + sizeof (*udp) + sizeof (*dhcp) + dhcp_opt_len;
254 
256 
257  return b;
258 }
259 
260 static inline u8
262  dhcp6_pd_client_state_t * client_state,
263  f64 current_time, f64 * due_time)
264 {
265  vlib_buffer_t *p0;
266  vlib_frame_t *f;
267  u32 *to_next;
268  u32 next_index;
269  vlib_buffer_t *c0;
270  ip6_header_t *ip;
271  udp_header_t *udp;
272  u32 ci0;
273  int bogus_length = 0;
274 
276 
277  f64 now = vlib_time_now (vm);
278 
279  if (!client_state->keep_sending_client_message)
280  return false;
281 
282  params = &client_state->params;
283 
284  if (client_state->due_time > current_time)
285  {
286  *due_time = client_state->due_time;
287  return true;
288  }
289 
290  p0 = client_state->buffer;
291 
292  next_index = ip6_rewrite_mcast_node.index;
293 
294  c0 = vlib_buffer_copy (vm, p0);
295  ci0 = vlib_get_buffer_index (vm, c0);
296 
298  udp = (udp_header_t *) (ip + 1);
299 
300  u16 *elapsed_field = (u16 *) ((void *) ip + client_state->elapsed_pos);
301  *elapsed_field =
302  clib_host_to_net_u16 ((u16)
303  ((now - client_state->transaction_start) * 100));
304 
305  udp->checksum = 0;
306  udp->checksum =
307  ip6_tcp_udp_icmp_compute_checksum (vm, 0, ip, &bogus_length);
308 
309  f = vlib_get_frame_to_node (vm, next_index);
310  to_next = vlib_frame_vector_args (f);
311  to_next[0] = ci0;
312  f->n_vectors = 1;
313  vlib_put_frame_to_node (vm, next_index, f);
314 
315  if (params->mrc != 0 && --client_state->n_left == 0)
316  stop_sending_client_message (vm, client_state);
317  else
318  {
319  client_state->sleep_interval =
320  (2 + random_f64_from_to (-0.1, 0.1)) * client_state->sleep_interval;
321  if (client_state->sleep_interval > params->mrt)
322  client_state->sleep_interval =
323  (1 + random_f64_from_to (-0.1, 0.1)) * params->mrt;
324 
325  client_state->due_time = current_time + client_state->sleep_interval;
326 
327  if (params->mrd != 0
328  && current_time > client_state->start_time + params->mrd)
329  stop_sending_client_message (vm, client_state);
330  else
331  *due_time = client_state->due_time;
332  }
333 
334  return client_state->keep_sending_client_message;
335 }
336 
337 static uword
339  vlib_node_runtime_t * rt,
340  vlib_frame_t * f0)
341 {
343  dhcp6_pd_client_state_t *client_state;
344  uword *event_data = 0;
345  f64 sleep_time = 1e9;
346  f64 current_time;
347  f64 due_time;
348  f64 dt = 0;
349  int i;
350 
351  while (true)
352  {
353  vlib_process_wait_for_event_or_clock (vm, sleep_time);
354  vlib_process_get_events (vm, &event_data);
355  vec_reset_length (event_data);
356 
357  current_time = vlib_time_now (vm);
358  do
359  {
360  due_time = current_time + 1e9;
361  for (i = 0; i < vec_len (cm->client_state_by_sw_if_index); i++)
362  {
363  client_state = &cm->client_state_by_sw_if_index[i];
364  if (!client_state->entry_valid)
365  continue;
367  (vm, client_state, current_time, &dt) && (dt < due_time))
368  due_time = dt;
369  }
370  current_time = vlib_time_now (vm);
371  }
372  while (due_time < current_time);
373 
374  sleep_time = due_time - current_time;
375  }
376 
377  return 0;
378 }
379 
380 /* *INDENT-OFF* */
383  .type = VLIB_NODE_TYPE_PROCESS,
384  .name = "send-dhcp6-pd-client-message-process",
385 };
386 /* *INDENT-ON* */
387 
388 void
391 {
393  dhcp6_pd_client_state_t *client_state = 0;
394  dhcp6_pd_client_state_t empty_state = {
395  0,
396  };
397 
398  ASSERT (~0 != sw_if_index);
399 
401  empty_state);
402  client_state = &cm->client_state_by_sw_if_index[sw_if_index];
403  if (!client_state->entry_valid)
404  {
405  client_state->entry_valid = 1;
406  client_state->adj_index = ~0;
407  }
408 
409  stop_sending_client_message (vm, client_state);
410 
411  if (!stop)
412  {
413  client_state->keep_sending_client_message = 1;
414  vec_free (client_state->params.prefixes);
415  client_state->params = *params;
416  client_state->params.prefixes = vec_dup (params->prefixes);
417  client_state->n_left = params->mrc;
418  client_state->start_time = vlib_time_now (vm);
419  client_state->sleep_interval =
420  (1 + random_f64_from_to (-0.1, 0.1)) * params->irt;
421  client_state->due_time = 0; /* send first packet ASAP */
422  client_state->transaction_id = random_u32 (&cm->seed) & 0x00ffffff;
423  client_state->buffer =
424  create_buffer_for_client_message (vm, sw_if_index, client_state,
425  params->msg_type);
426  if (!client_state->buffer)
427  client_state->keep_sending_client_message = 0;
428  else
431  1, 0);
432  }
433 }
434 
435 void
438 {
439  vl_api_dhcp6_pd_send_client_message_reply_t *rmp;
442  u32 n_prefixes;
443  u32 i;
444  int rv = 0;
445 
447 
449  REPLY_MACRO (VL_API_DHCP6_PD_SEND_CLIENT_MESSAGE_REPLY);
450 
451  if (rv != 0)
452  return;
453 
454  params.sw_if_index = ntohl (mp->sw_if_index);
455  params.server_index = ntohl (mp->server_index);
456  params.irt = ntohl (mp->irt);
457  params.mrt = ntohl (mp->mrt);
458  params.mrc = ntohl (mp->mrc);
459  params.mrd = ntohl (mp->mrd);
460  params.msg_type = mp->msg_type;
461  params.T1 = ntohl (mp->T1);
462  params.T2 = ntohl (mp->T2);
463  n_prefixes = ntohl (mp->n_prefixes);
464  params.prefixes = 0;
465  if (n_prefixes > 0)
466  vec_validate (params.prefixes, n_prefixes - 1);
467  for (i = 0; i < n_prefixes; i++)
468  {
471  &params.prefixes[i];
472  pref->preferred_lt = ntohl (pi->preferred_time);
473  pref->valid_lt = ntohl (pi->valid_time);
474  memcpy (pref->prefix.as_u8, pi->prefix, 16);
475  pref->prefix_length = pi->prefix_length;
476  }
477 
478  dhcp6_pd_send_client_message (vm, ntohl (mp->sw_if_index), mp->stop,
479  &params);
480 }
481 
482 static clib_error_t *
484  _vnet_dhcp6_pd_reply_event_function_list_elt_t
485  * elt)
486 {
487  clib_error_t *error = 0;
488 
489  while (elt)
490  {
491  error = elt->fp (data);
492  if (error)
493  return error;
494  elt = elt->next_dhcp6_pd_reply_event_function;
495  }
496 
497  return error;
498 }
499 
500 static uword
502  vlib_frame_t * f)
503 {
504  /* These cross the longjmp boundry (vlib_process_wait_for_event)
505  * and need to be volatile - to prevent them from being optimized into
506  * a register - which could change during suspension */
507 
508  while (1)
509  {
511  uword event_type = DHCP6_PD_DP_REPLY_REPORT;
512  void *event_data = vlib_process_get_event_data (vm, &event_type);
513 
514  int i;
515  if (event_type == DHCP6_PD_DP_REPLY_REPORT)
516  {
517  prefix_report_t *events = event_data;
518  for (i = 0; i < vec_len (events); i++)
519  {
520  u32 event_size =
522  vec_len (events[i].prefixes) *
525  clib_mem_alloc (event_size);
526  memset (event, 0, event_size);
527 
528  event->sw_if_index = htonl (events[i].body.sw_if_index);
529  event->server_index = htonl (events[i].body.server_index);
530  event->msg_type = events[i].body.msg_type;
531  event->T1 = htonl (events[i].body.T1);
532  event->T2 = htonl (events[i].body.T2);
533  event->inner_status_code =
534  htons (events[i].body.inner_status_code);
535  event->status_code = htons (events[i].body.status_code);
536  event->preference = events[i].body.preference;
537 
538  event->n_prefixes = htonl (vec_len (events[i].prefixes));
540  (typeof (prefix)) event->prefixes;
541  u32 j;
542  for (j = 0; j < vec_len (events[i].prefixes); j++)
543  {
544  dhcp6_prefix_info_t *info = &events[i].prefixes[j];
545  memcpy (prefix->prefix, &info->prefix, 16);
546  prefix->prefix_length = info->prefix_length;
547  prefix->valid_time = htonl (info->valid_time);
548  prefix->preferred_time = htonl (info->preferred_time);
549  prefix++;
550  }
551  vec_free (events[i].prefixes);
552 
556 
558  /* *INDENT-OFF* */
559  pool_foreach(reg, vpe_api_main.dhcp6_pd_reply_events_registrations,
560  ({
561  vl_api_registration_t *vl_reg;
562  vl_reg =
563  vl_api_client_index_to_registration (reg->client_index);
564  if (vl_reg && vl_api_can_send_msg (vl_reg))
565  {
566  vl_api_dhcp6_pd_reply_event_t *msg =
567  vl_msg_api_alloc (event_size);
568  clib_memcpy (msg, event, event_size);
569  msg->_vl_msg_id = htons (VL_API_DHCP6_PD_REPLY_EVENT);
570  msg->client_index = reg->client_index;
571  msg->pid = reg->client_pid;
572  vl_api_send_msg (vl_reg, (u8 *) msg);
573  }
574  }));
575  /* *INDENT-ON* */
576 
577  clib_mem_free (event);
578  }
579  }
580  vlib_process_put_event_data (vm, event_data);
581  }
582 
583  return 0;
584 }
585 
586 /* *INDENT-OFF* */
588  .function = dhcp6_pd_reply_process,
589  .type = VLIB_NODE_TYPE_PROCESS,
590  .name = "dhcp6-pd-reply-publisher-process",
591 };
592 /* *INDENT-ON* */
593 
594 void
597 {
599  vl_api_want_dhcp6_pd_reply_events_reply_t *rmp;
600  int rv = 0;
601 
602  uword *p =
603  hash_get (am->dhcp6_pd_reply_events_registration_hash, mp->client_index);
605  if (p)
606  {
607  if (mp->enable_disable)
608  {
609  clib_warning ("pid %d: already enabled...", ntohl (mp->pid));
610  rv = VNET_API_ERROR_INVALID_REGISTRATION;
611  goto reply;
612  }
613  else
614  {
615  rp =
616  pool_elt_at_index (am->dhcp6_pd_reply_events_registrations, p[0]);
617  pool_put (am->dhcp6_pd_reply_events_registrations, rp);
618  hash_unset (am->dhcp6_pd_reply_events_registration_hash,
619  mp->client_index);
620  if (pool_elts (am->dhcp6_pd_reply_events_registrations) == 0)
622  goto reply;
623  }
624  }
625  if (mp->enable_disable == 0)
626  {
627  clib_warning ("pid %d: already disabled...", ntohl (mp->pid));
628  rv = VNET_API_ERROR_INVALID_REGISTRATION;
629  goto reply;
630  }
631  pool_get (am->dhcp6_pd_reply_events_registrations, rp);
632  rp->client_index = mp->client_index;
633  rp->client_pid = ntohl (mp->pid);
634  hash_set (am->dhcp6_pd_reply_events_registration_hash, rp->client_index,
635  rp - am->dhcp6_pd_reply_events_registrations);
638 
639 reply:
640  REPLY_MACRO (VL_API_WANT_DHCP6_PD_REPLY_EVENTS_REPLY);
641 }
642 
643 static clib_error_t *
645 {
647 
648  cm->vlib_main = vm;
649  cm->vnet_main = vnet_get_main ();
650 
651  cm->publisher_node = ~0;
652 
653  cm->seed = 0xdeaddabe;
654 
655  return 0;
656 }
657 
659 
660 /*
661  * fd.io coding-style-patch-verification: ON
662  *
663  * Local Variables:
664  * eval: (c-set-style "gnu")
665  * End:
666  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
Send DHCPv6 PD client message of specified type.
Definition: dhcp.api:298
#define hash_set(h, key, value)
Definition: hash.h:255
static clib_error_t * call_dhcp6_pd_reply_event_callbacks(void *data, _vnet_dhcp6_pd_reply_event_function_list_elt_t *elt)
static clib_error_t * dhcp6_pd_client_init(vlib_main_t *vm)
static f64 vlib_process_wait_for_event_or_clock(vlib_main_t *vm, f64 dt)
Suspend a cooperative multi-tasking thread Waits for an event, or for the indicated number of seconds...
Definition: node_funcs.h:699
#define hash_unset(h, key)
Definition: hash.h:261
static void vlib_buffer_free(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Free buffers Frees the entire buffer chain for each buffer.
Definition: buffer_funcs.h:534
static uword * vlib_process_wait_for_event(vlib_main_t *vm)
Definition: node_funcs.h:619
dhcp6_pd_client_main_t dhcp6_pd_client_main
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
u8 as_u8[16]
Definition: ip6_packet.h:48
dhcp6_pd_client_state_t * client_state_by_sw_if_index
#define NULL
Definition: clib.h:55
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:228
dhcp6_pd_send_client_message_params_prefix_t * prefixes
for(i=1;i<=collision_buckets;i++)
int i
void dhcp6_pd_send_client_message(vlib_main_t *vm, u32 sw_if_index, u8 stop, dhcp6_pd_send_client_message_params_t *params)
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
#define DHCPV6_CLIENT_PORT
Definition: dhcp6_packet.h:26
#define VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:458
int dhcp6_pd_publish_report(prefix_report_t *r)
static uword send_dhcp6_pd_client_message_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f0)
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:228
ip6_address_t src_address
Definition: ip6_packet.h:347
unsigned char u8
Definition: types.h:56
static vlib_buffer_t * vlib_buffer_copy(vlib_main_t *vm, vlib_buffer_t *b)
Definition: buffer_funcs.h:715
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
double f64
Definition: types.h:142
vlib_node_registration_t ip6_rewrite_mcast_node
(constructor) VLIB_REGISTER_NODE (ip6_rewrite_mcast_node)
Definition: ip6_forward.c:2009
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:443
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:156
static uword vlib_process_get_events(vlib_main_t *vm, uword **data_vector)
Return the first event type which has occurred and a vector of per-event data of that type...
Definition: node_funcs.h:542
static u8 check_pd_send_client_message(vlib_main_t *vm, dhcp6_pd_client_state_t *client_state, f64 current_time, f64 *due_time)
static vnet_sw_interface_t * vnet_get_sup_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
void dhcp6_pd_set_publisher_node(uword node_index, uword event_type)
vlib_frame_t * vlib_get_frame_to_node(vlib_main_t *vm, u32 to_node_index)
Definition: main.c:182
void vl_api_rpc_call_main_thread(void *fp, u8 *data, u32 data_length)
Definition: vlib_api.c:638
void adj_unlock(adj_index_t adj_index)
Release a reference counting lock on the adjacency.
Definition: adj.c:240
unsigned int u32
Definition: types.h:88
static u32 vlib_get_buffer_index(vlib_main_t *vm, void *p)
Translate buffer pointer into buffer index.
Definition: buffer_funcs.h:141
#define hash_get(h, key)
Definition: hash.h:249
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:464
Struct representing DHCPv6 PD prefix.
Definition: dhcp.api:230
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:108
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:952
unsigned short u16
Definition: types.h:57
void vlib_put_frame_to_node(vlib_main_t *vm, u32 to_node_index, vlib_frame_t *f)
Definition: main.c:191
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:202
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:274
static void stop_sending_client_message(vlib_main_t *vm, dhcp6_pd_client_state_t *client_state)
dhcp6_pd_client_public_main_t dhcp6_pd_client_public_main
#define vec_dup(V)
Return copy of vector (no header, no alignment)
Definition: vec.h:373
static void * vlib_process_signal_event_data(vlib_main_t *vm, uword node_index, uword type_opaque, uword n_data_elts, uword n_data_elt_bytes)
Definition: node_funcs.h:846
#define REPLY_MACRO(t)
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)
dhcpv6_duid_ll_string_t client_duid
void vl_api_dhcp6_pd_send_client_message_t_handler(vl_api_dhcp6_pd_send_client_message_t *mp)
#define CLIENT_DUID_LENGTH
_vnet_dhcp6_pd_reply_event_function_list_elt_t * functions
#define BAD_SW_IF_INDEX_LABEL
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:153
u16 n_vectors
Definition: node.h:380
#define DHCPV6_CLIENT_IAID
vlib_main_t * vm
Definition: buffer.c:294
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
#define clib_warning(format, args...)
Definition: error.h:59
#define clib_memcpy(a, b, c)
Definition: string.h:75
static vlib_node_registration_t send_dhcp6_pd_client_message_process_node
(constructor) VLIB_REGISTER_NODE (send_dhcp6_pd_client_message_process_node)
u16 ip6_tcp_udp_icmp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip6_header_t *ip0, int *bogus_lengthp)
Definition: ip6_forward.c:910
#define VNET_SW_INTERFACE_FLAG_ADMIN_UP
Definition: interface.h:661
static void signal_report(prefix_report_t *r)
#define ASSERT(truth)
dhcp6_report_common_t body
static void clib_mem_free(void *p)
Definition: mem.h:179
Tell client about a DHCPv6 PD server reply event.
Definition: dhcp.api:400
static uword dhcp6_pd_reply_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
static void * clib_mem_alloc(uword size)
Definition: mem.h:112
vl_api_dhcp6_pd_prefix_info_t prefixes[n_prefixes]
Definition: dhcp.api:313
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
dhcp6_client_common_main_t dhcp6_client_common_main
Register for DHCPv6 PD reply events.
Definition: dhcp.api:346
ip6_address_t ip6_neighbor_get_link_local_address(u32 sw_if_index)
Definition: ip6_neighbor.c:240
u32 ip_version_traffic_class_and_flow_label
Definition: ip6_packet.h:334
Definition: defs.h:47
u16 payload_length
Definition: ip6_packet.h:338
static void * vlib_process_get_event_data(vlib_main_t *vm, uword *return_event_type_opaque)
Definition: node_funcs.h:489
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u64 uword
Definition: types.h:112
void vl_api_want_dhcp6_pd_reply_events_t_handler(vl_api_want_dhcp6_pd_reply_events_t *mp)
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:267
#define DHCPV6_SERVER_PORT
Definition: dhcp6_packet.h:27
typedef prefix
Definition: ip_types.api:40
#define vnet_buffer(b)
Definition: buffer.h:360
static u32 random_u32(u32 *seed)
32-bit random number generator
Definition: random.h:69
vlib_node_registration_t dhcp6_pd_reply_process_node
(constructor) VLIB_REGISTER_NODE (dhcp6_pd_reply_process_node)
static void vlib_process_put_event_data(vlib_main_t *vm, void *event_data)
Definition: node_funcs.h:526
adj_index_t adj_mcast_add_or_lock(fib_protocol_t proto, vnet_link_t link_type, u32 sw_if_index)
Mcast Adjacency.
Definition: adj_mcast.c:51
dhcp6_pd_send_client_message_params_t params
static const ip6_address_t all_dhcp6_relay_agents_and_servers
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header, unspecified alignment)
Definition: vec.h:486
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
Definition: buffer.h:111
vpe_api_main_t vpe_api_main
Definition: pipe_api.c:39
static u32 vlib_buffer_alloc(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Allocate buffers into supplied array.
Definition: buffer_funcs.h:490
dhcp6_prefix_info_t * prefixes
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:57
Definition: defs.h:46
ip6_address_t dst_address
Definition: ip6_packet.h:347
#define VALIDATE_SW_IF_INDEX(mp)
static_always_inline f64 random_f64_from_to(f64 from, f64 to)
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128