FD.io VPP  v18.07-rc0-415-g6c78436
Vector Packet Processing
dhcp6_ia_na_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  address_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_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_ia_na_client_state_t * client_state)
85 {
86  u32 bi0;
87 
88  client_state->keep_sending_client_message = 0;
89  vec_free (client_state->params.addresses);
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  dhcp6_ia_na_client_state_t * client_state,
103  u32 type)
104 {
106  vnet_main_t *vnm = vnet_get_main ();
107 
108  vlib_buffer_t *b;
109  u32 bi;
110  ip6_header_t *ip;
111  udp_header_t *udp;
112  dhcpv6_header_t *dhcp;
113  ip6_address_t src_addr;
114  u32 dhcp_opt_len = 0;
115  client_state->transaction_start = vlib_time_now (vm);
116  u32 n_addresses;
117  u32 i;
118 
119  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
120  vnet_sw_interface_t *sup_sw = vnet_get_sup_sw_interface (vnm, sw_if_index);
121  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
122 
123  /* Interface(s) down? */
124  if ((hw->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
125  return NULL;
126  if ((sup_sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
127  return NULL;
128  if ((sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) == 0)
129  return NULL;
130 
131  /* Get a link-local address */
132  src_addr = ip6_neighbor_get_link_local_address (sw_if_index);
133 
134  if (src_addr.as_u8[0] != 0xfe)
135  {
136  clib_warning ("Could not find source address to send DHCPv6 packet");
137  return NULL;
138  }
139 
140  if (vlib_buffer_alloc (vm, &bi, 1) != 1)
141  {
142  clib_warning ("Buffer allocation failed");
143  return NULL;
144  }
145 
146  b = vlib_get_buffer (vm, bi);
147  vnet_buffer (b)->sw_if_index[VLIB_RX] = sw_if_index;
148  vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index;
151  sw_if_index);
152  vnet_buffer (b)->ip.adj_index[VLIB_TX] = client_state->adj_index;
153  b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
154 
156  udp = (udp_header_t *) (ip + 1);
157  dhcp = (dhcpv6_header_t *) (udp + 1);
158 
159  ip->src_address = src_addr;
160  ip->hop_limit = 255;
162  clib_host_to_net_u32 (0x6 << 28);
163  ip->payload_length = 0;
164  ip->protocol = IP_PROTOCOL_UDP;
165 
166  udp->src_port = clib_host_to_net_u16 (DHCPV6_CLIENT_PORT);
167  udp->dst_port = clib_host_to_net_u16 (DHCPV6_SERVER_PORT);
168  udp->checksum = 0;
169  udp->length = 0;
170 
171  dhcp->msg_type = type;
172  dhcp->xid[0] = (client_state->transaction_id & 0x00ff0000) >> 16;
173  dhcp->xid[1] = (client_state->transaction_id & 0x0000ff00) >> 8;
174  dhcp->xid[2] = (client_state->transaction_id & 0x000000ff) >> 0;
175 
176  void *d = (void *) dhcp->data;
177  dhcpv6_option_t *duid;
178  dhcpv6_elapsed_t *elapsed;
179  dhcpv6_ia_header_t *ia_hdr;
180  dhcpv6_ia_opt_addr_t *opt_addr;
181  if (type == DHCPV6_MSG_SOLICIT || type == DHCPV6_MSG_REQUEST ||
182  type == DHCPV6_MSG_RENEW || type == DHCPV6_MSG_REBIND ||
183  type == DHCPV6_MSG_RELEASE)
184  {
185  duid = (dhcpv6_option_t *) d;
186  duid->option = clib_host_to_net_u16 (DHCPV6_OPTION_CLIENTID);
187  duid->length = clib_host_to_net_u16 (CLIENT_DUID_LENGTH);
189  d += sizeof (*duid) + CLIENT_DUID_LENGTH;
190 
191  if (client_state->params.server_index != ~0)
192  {
193  server_id_t *se =
194  &ccm->server_ids[client_state->params.server_index];
195 
196  duid = (dhcpv6_option_t *) d;
197  duid->option = clib_host_to_net_u16 (DHCPV6_OPTION_SERVERID);
198  duid->length = clib_host_to_net_u16 (se->len);
199  clib_memcpy (duid + 1, se->data, se->len);
200  d += sizeof (*duid) + se->len;
201  }
202 
203  elapsed = (dhcpv6_elapsed_t *) d;
204  elapsed->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_ELAPSED_TIME);
205  elapsed->opt.length =
206  clib_host_to_net_u16 (sizeof (*elapsed) - sizeof (elapsed->opt));
207  elapsed->elapsed_10ms = 0;
208  client_state->elapsed_pos =
209  (char *) &elapsed->elapsed_10ms -
210  (char *) vlib_buffer_get_current (b);
211  d += sizeof (*elapsed);
212 
213  ia_hdr = (dhcpv6_ia_header_t *) d;
214  ia_hdr->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_IA_NA);
215  ia_hdr->iaid = clib_host_to_net_u32 (DHCPV6_CLIENT_IAID);
216  ia_hdr->t1 = clib_host_to_net_u32 (client_state->params.T1);
217  ia_hdr->t2 = clib_host_to_net_u32 (client_state->params.T2);
218  d += sizeof (*ia_hdr);
219 
220  n_addresses = vec_len (client_state->params.addresses);
221 
222  ia_hdr->opt.length =
223  clib_host_to_net_u16 (sizeof (*ia_hdr) +
224  n_addresses * sizeof (*opt_addr) -
225  sizeof (ia_hdr->opt));
226 
227  for (i = 0; i < n_addresses; i++)
228  {
230  &client_state->params.addresses[i];
231  opt_addr = (dhcpv6_ia_opt_addr_t *) d;
232  opt_addr->opt.option = clib_host_to_net_u16 (DHCPV6_OPTION_IAADDR);
233  opt_addr->opt.length =
234  clib_host_to_net_u16 (sizeof (*opt_addr) -
235  sizeof (opt_addr->opt));
236  opt_addr->addr = addr->address;
237  opt_addr->valid = clib_host_to_net_u32 (addr->valid_lt);
238  opt_addr->preferred = clib_host_to_net_u32 (addr->preferred_lt);
239  d += sizeof (*opt_addr);
240  }
241  }
242  else
243  {
244  clib_warning ("State not implemented");
245  }
246 
247  dhcp_opt_len = ((u8 *) d) - dhcp->data;
248  udp->length =
249  clib_host_to_net_u16 (sizeof (*udp) + sizeof (*dhcp) + dhcp_opt_len);
250  ip->payload_length = udp->length;
251  b->current_length =
252  sizeof (*ip) + sizeof (*udp) + sizeof (*dhcp) + dhcp_opt_len;
253 
255 
256  return b;
257 }
258 
259 static inline u8
261  dhcp6_ia_na_client_state_t * client_state,
262  f64 current_time, f64 * due_time)
263 {
264  vlib_buffer_t *p0;
265  vlib_frame_t *f;
266  u32 *to_next;
267  u32 next_index;
268  vlib_buffer_t *c0;
269  ip6_header_t *ip;
270  udp_header_t *udp;
271  u32 ci0;
272  int bogus_length = 0;
273 
275 
276  f64 now = vlib_time_now (vm);
277 
278  if (!client_state->keep_sending_client_message)
279  return false;
280 
281  params = &client_state->params;
282 
283  if (client_state->due_time > current_time)
284  {
285  *due_time = client_state->due_time;
286  return true;
287  }
288 
289  p0 = client_state->buffer;
290 
291  next_index = ip6_rewrite_mcast_node.index;
292 
293  c0 = vlib_buffer_copy (vm, p0);
294  ci0 = vlib_get_buffer_index (vm, c0);
295 
297  udp = (udp_header_t *) (ip + 1);
298 
299  u16 *elapsed_field = (u16 *) ((void *) ip + client_state->elapsed_pos);
300  *elapsed_field =
301  clib_host_to_net_u16 ((u16)
302  ((now - client_state->transaction_start) * 100));
303 
304  udp->checksum = 0;
305  udp->checksum =
306  ip6_tcp_udp_icmp_compute_checksum (vm, 0, ip, &bogus_length);
307 
308  f = vlib_get_frame_to_node (vm, next_index);
309  to_next = vlib_frame_vector_args (f);
310  to_next[0] = ci0;
311  f->n_vectors = 1;
312  vlib_put_frame_to_node (vm, next_index, f);
313 
314  if (params->mrc != 0 && --client_state->n_left == 0)
315  stop_sending_client_message (vm, client_state);
316  else
317  {
318  client_state->sleep_interval =
319  (2 + random_f64_from_to (-0.1, 0.1)) * client_state->sleep_interval;
320  if (client_state->sleep_interval > params->mrt)
321  client_state->sleep_interval =
322  (1 + random_f64_from_to (-0.1, 0.1)) * params->mrt;
323 
324  client_state->due_time = current_time + client_state->sleep_interval;
325 
326  if (params->mrd != 0
327  && current_time > client_state->start_time + params->mrd)
328  stop_sending_client_message (vm, client_state);
329  else
330  *due_time = client_state->due_time;
331  }
332 
333  return client_state->keep_sending_client_message;
334 }
335 
336 static uword
338  vlib_node_runtime_t * rt,
339  vlib_frame_t * f0)
340 {
342  dhcp6_ia_na_client_state_t *client_state;
343  uword *event_data = 0;
344  f64 sleep_time = 1e9;
345  f64 current_time;
346  f64 due_time;
347  f64 dt = 0;
348  int i;
349 
350  while (true)
351  {
352  vlib_process_wait_for_event_or_clock (vm, sleep_time);
353  vlib_process_get_events (vm, &event_data);
354  vec_reset_length (event_data);
355 
356  current_time = vlib_time_now (vm);
357  do
358  {
359  due_time = current_time + 1e9;
360  for (i = 0; i < vec_len (cm->client_state_by_sw_if_index); i++)
361  {
362  client_state = &cm->client_state_by_sw_if_index[i];
363  if (!client_state->entry_valid)
364  continue;
366  (vm, client_state, current_time, &dt) && (dt < due_time))
367  due_time = dt;
368  }
369  current_time = vlib_time_now (vm);
370  }
371  while (due_time < current_time);
372 
373  sleep_time = due_time - current_time;
374  }
375 
376  return 0;
377 }
378 
379 /* *INDENT-OFF* */
382  .type = VLIB_NODE_TYPE_PROCESS,
383  .name = "send-dhcp6-client-message-process",
384 };
385 /* *INDENT-ON* */
386 
387 void
390 {
392  dhcp6_ia_na_client_state_t *client_state = 0;
393  dhcp6_ia_na_client_state_t empty_state = { 0, };
394 
395  ASSERT (~0 != sw_if_index);
396 
398  empty_state);
399  client_state = &cm->client_state_by_sw_if_index[sw_if_index];
400  if (!client_state->entry_valid)
401  {
402  client_state->entry_valid = 1;
403  client_state->adj_index = ~0;
404  }
405 
406  stop_sending_client_message (vm, client_state);
407 
408  if (!stop)
409  {
410  client_state->keep_sending_client_message = 1;
411  vec_free (client_state->params.addresses);
412  client_state->params = *params;
413  client_state->params.addresses = vec_dup (params->addresses);
414  client_state->n_left = params->mrc;
415  client_state->start_time = vlib_time_now (vm);
416  client_state->sleep_interval =
417  (1 + random_f64_from_to (-0.1, 0.1)) * params->irt;
418  client_state->due_time = 0; /* send first packet ASAP */
419  client_state->transaction_id = random_u32 (&cm->seed) & 0x00ffffff;
420  client_state->buffer =
421  create_buffer_for_client_message (vm, sw_if_index, client_state,
422  params->msg_type);
423  if (!client_state->buffer)
424  client_state->keep_sending_client_message = 0;
425  else
428  1, 0);
429  }
430 }
431 
432 void
435 {
436  vl_api_dhcp6_send_client_message_reply_t *rmp;
439  u32 n_addresses;
440  u32 i;
441  int rv = 0;
442 
444 
446  REPLY_MACRO (VL_API_DHCP6_SEND_CLIENT_MESSAGE_REPLY);
447 
448  if (rv != 0)
449  return;
450 
451  params.sw_if_index = ntohl (mp->sw_if_index);
452  params.server_index = ntohl (mp->server_index);
453  params.irt = ntohl (mp->irt);
454  params.mrt = ntohl (mp->mrt);
455  params.mrc = ntohl (mp->mrc);
456  params.mrd = ntohl (mp->mrd);
457  params.msg_type = mp->msg_type;
458  params.T1 = ntohl (mp->T1);
459  params.T2 = ntohl (mp->T2);
460  n_addresses = ntohl (mp->n_addresses);
461  params.addresses = 0;
462  if (n_addresses > 0)
463  vec_validate (params.addresses, n_addresses - 1);
464  for (i = 0; i < n_addresses; i++)
465  {
468  addr->preferred_lt = ntohl (ai->preferred_time);
469  addr->valid_lt = ntohl (ai->valid_time);
470  memcpy (addr->address.as_u8, ai->address, 16);
471  }
472 
473  dhcp6_send_client_message (vm, ntohl (mp->sw_if_index), mp->stop, &params);
474 }
475 
476 clib_error_t *
478  _vnet_dhcp6_reply_event_function_list_elt_t
479  * elt)
480 {
481  clib_error_t *error = 0;
482 
483  while (elt)
484  {
485  error = elt->fp (data);
486  if (error)
487  return error;
488  elt = elt->next_dhcp6_reply_event_function;
489  }
490 
491  return error;
492 }
493 
494 static uword
496  vlib_frame_t * f)
497 {
498  /* These cross the longjmp boundry (vlib_process_wait_for_event)
499  * and need to be volatile - to prevent them from being optimized into
500  * a register - which could change during suspension */
501 
502  while (1)
503  {
505  uword event_type = DHCP6_DP_REPLY_REPORT;
506  void *event_data = vlib_process_get_event_data (vm, &event_type);
507 
508  int i;
509  if (event_type == DHCP6_DP_REPLY_REPORT)
510  {
511  address_report_t *events = event_data;
512  for (i = 0; i < vec_len (events); i++)
513  {
514  u32 event_size =
515  sizeof (vl_api_dhcp6_reply_event_t) +
516  vec_len (events[i].addresses) *
518  vl_api_dhcp6_reply_event_t *event = clib_mem_alloc (event_size);
519  memset (event, 0, event_size);
520 
521  event->sw_if_index = htonl (events[i].body.sw_if_index);
522  event->server_index = htonl (events[i].body.server_index);
523  event->msg_type = events[i].body.msg_type;
524  event->T1 = htonl (events[i].body.T1);
525  event->T2 = htonl (events[i].body.T2);
526  event->inner_status_code =
527  htons (events[i].body.inner_status_code);
528  event->status_code = htons (events[i].body.status_code);
529  event->preference = events[i].body.preference;
530 
531  event->n_addresses = htonl (vec_len (events[i].addresses));
533  (typeof (address)) event->addresses;
534  u32 j;
535  for (j = 0; j < vec_len (events[i].addresses); j++)
536  {
537  dhcp6_address_info_t *info = &events[i].addresses[j];
538  memcpy (address->address, &info->address, 16);
539  address->valid_time = htonl (info->valid_time);
540  address->preferred_time = htonl (info->preferred_time);
541  address++;
542  }
543 
547 
549  /* *INDENT-OFF* */
550  pool_foreach(reg, vpe_api_main.dhcp6_reply_events_registrations,
551  ({
552  vl_api_registration_t *vl_reg;
553  vl_reg =
554  vl_api_client_index_to_registration (reg->client_index);
555  if (vl_reg && vl_api_can_send_msg (vl_reg))
556  {
557  vl_api_dhcp6_reply_event_t *msg =
558  vl_msg_api_alloc (event_size);
559  clib_memcpy (msg, event, event_size);
560  msg->_vl_msg_id = htons (VL_API_DHCP6_REPLY_EVENT);
561  msg->client_index = reg->client_index;
562  msg->pid = reg->client_pid;
563  vl_api_send_msg (vl_reg, (u8 *) msg);
564  }
565  }));
566  /* *INDENT-ON* */
567 
568  clib_mem_free (event);
569  }
570  }
571  vlib_process_put_event_data (vm, event_data);
572  }
573 
574  return 0;
575 }
576 
577 /* *INDENT-OFF* */
579  .function = dhcp6_reply_process,
580  .type = VLIB_NODE_TYPE_PROCESS,
581  .name = "dhcp6-reply-publisher-process",
582 };
583 /* *INDENT-ON* */
584 
585 void
588 {
590  vl_api_want_dhcp6_reply_events_reply_t *rmp;
591  int rv = 0;
592 
593  uword *p =
594  hash_get (am->dhcp6_reply_events_registration_hash, mp->client_index);
596  if (p)
597  {
598  if (mp->enable_disable)
599  {
600  clib_warning ("pid %d: already enabled...", ntohl (mp->pid));
601  rv = VNET_API_ERROR_INVALID_REGISTRATION;
602  goto reply;
603  }
604  else
605  {
606  rp = pool_elt_at_index (am->dhcp6_reply_events_registrations, p[0]);
607  pool_put (am->dhcp6_reply_events_registrations, rp);
608  hash_unset (am->dhcp6_reply_events_registration_hash,
609  mp->client_index);
610  if (pool_elts (am->dhcp6_reply_events_registrations) == 0)
612  goto reply;
613  }
614  }
615  if (mp->enable_disable == 0)
616  {
617  clib_warning ("pid %d: already disabled...", ntohl (mp->pid));
618  rv = VNET_API_ERROR_INVALID_REGISTRATION;
619  goto reply;
620  }
621  pool_get (am->dhcp6_reply_events_registrations, rp);
622  rp->client_index = mp->client_index;
623  rp->client_pid = ntohl (mp->pid);
624  hash_set (am->dhcp6_reply_events_registration_hash, rp->client_index,
625  rp - am->dhcp6_reply_events_registrations);
628 
629 reply:
630  REPLY_MACRO (VL_API_WANT_DHCP6_REPLY_EVENTS_REPLY);
631 }
632 
633 static clib_error_t *
635 {
637 
638  cm->vlib_main = vm;
639  cm->vnet_main = vnet_get_main ();
640 
641  cm->publisher_node = ~0;
642 
643  cm->seed = 0xdeaccabe;
644 
645  return 0;
646 }
647 
649 
650 /*
651  * fd.io coding-style-patch-verification: ON
652  *
653  * Local Variables:
654  * eval: (c-set-style "gnu")
655  * End:
656  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
static void signal_report(address_report_t *r)
typedef address
Definition: ip_types.api:34
#define hash_set(h, key, value)
Definition: hash.h:255
static vlib_buffer_t * create_buffer_for_client_message(vlib_main_t *vm, u32 sw_if_index, dhcp6_ia_na_client_state_t *client_state, u32 type)
static clib_error_t * dhcp6_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
static void stop_sending_client_message(vlib_main_t *vm, dhcp6_ia_na_client_state_t *client_state)
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
#define NULL
Definition: clib.h:55
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:225
_vnet_dhcp6_reply_event_function_list_elt_t * functions
void vl_api_want_dhcp6_reply_events_t_handler(vl_api_want_dhcp6_reply_events_t *mp)
vlib_node_registration_t dhcp6_reply_process_node
(constructor) VLIB_REGISTER_NODE (dhcp6_reply_process_node)
for(i=1;i<=collision_buckets;i++)
int i
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
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:227
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
void dhcp6_set_publisher_node(uword node_index, uword event_type)
#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:440
#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
Send DHCPv6 client message of specified type.
Definition: dhcp.api:259
static vnet_sw_interface_t * vnet_get_sup_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
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:636
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:461
dhcp6_ia_na_client_main_t dhcp6_ia_na_client_main
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:273
#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)
dhcp6_ia_na_client_state_t * client_state_by_sw_if_index
dhcpv6_duid_ll_string_t client_duid
dhcp6_ia_na_client_public_main_t dhcp6_ia_na_client_public_main
#define CLIENT_DUID_LENGTH
#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
dhcp6_send_client_message_params_address_t * addresses
#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
void vl_api_dhcp6_send_client_message_t_handler(vl_api_dhcp6_send_client_message_t *mp)
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:660
#define ASSERT(truth)
Struct representing DHCPv6 address.
Definition: dhcp.api:217
dhcp6_send_client_message_params_t params
static void clib_mem_free(void *p)
Definition: mem.h:179
void dhcp6_send_client_message(vlib_main_t *vm, u32 sw_if_index, u8 stop, dhcp6_send_client_message_params_t *params)
static void * clib_mem_alloc(uword size)
Definition: mem.h:112
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
dhcp6_client_common_main_t dhcp6_client_common_main
Tell client about a DHCPv6 server reply event.
Definition: dhcp.api:369
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
clib_error_t * call_dhcp6_reply_event_callbacks(void *data, _vnet_dhcp6_reply_event_function_list_elt_t *elt)
static uword dhcp6_reply_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
int dhcp6_publish_report(address_report_t *r)
u64 uword
Definition: types.h:112
dhcp6_address_info_t * addresses
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:267
vl_api_dhcp6_address_info_t addresses[n_addresses]
Definition: dhcp.api:274
static vlib_node_registration_t send_dhcp6_client_message_process_node
(constructor) VLIB_REGISTER_NODE (send_dhcp6_client_message_process_node)
static u8 check_send_client_message(vlib_main_t *vm, dhcp6_ia_na_client_state_t *client_state, f64 current_time, f64 *due_time)
Register for DHCPv6 reply events.
Definition: dhcp.api:332
#define DHCPV6_SERVER_PORT
Definition: dhcp6_packet.h:27
static uword send_dhcp6_client_message_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f0)
#define vnet_buffer(b)
Definition: buffer.h:360
static u32 random_u32(u32 *seed)
32-bit random number generator
Definition: random.h:69
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
vhost_vring_addr_t addr
Definition: vhost-user.h:83
dhcp6_report_common_t body
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: interface_api.c:49
static u32 vlib_buffer_alloc(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Allocate buffers into supplied array.
Definition: buffer_funcs.h:490
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