FD.io VPP  v20.05.1-6-gf53edbc3b
Vector Packet Processing
pppoe.c
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1 /*
2  *------------------------------------------------------------------
3  * Copyright (c) 2017 Intel and/or its affiliates.
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at:
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *------------------------------------------------------------------
16  */
17 #include <stdint.h>
18 #include <net/if.h>
19 #include <sys/ioctl.h>
20 #include <inttypes.h>
21 
22 #include <vlib/vlib.h>
23 #include <vlib/unix/unix.h>
24 #include <vnet/ethernet/ethernet.h>
25 #include <vnet/fib/fib_entry.h>
26 #include <vnet/fib/fib_table.h>
28 #include <vnet/plugin/plugin.h>
29 #include <vpp/app/version.h>
30 #include <vnet/ppp/packet.h>
31 #include <pppoe/pppoe.h>
32 #include <vnet/adj/adj_midchain.h>
33 #include <vnet/adj/adj_mcast.h>
34 
35 #include <vppinfra/hash.h>
37 
39 
41 
42 u8 *
43 format_pppoe_session (u8 * s, va_list * args)
44 {
45  pppoe_session_t *t = va_arg (*args, pppoe_session_t *);
46  pppoe_main_t *pem = &pppoe_main;
47 
48  s = format (s, "[%d] sw-if-index %d client-ip %U session-id %d ",
49  t - pem->sessions, t->sw_if_index,
51  t->session_id);
52 
53  s = format (s, "encap-if-index %d decap-fib-index %d\n",
55 
56  s = format (s, " local-mac %U client-mac %U",
59 
60  return s;
61 }
62 
63 static u8 *
64 format_pppoe_name (u8 * s, va_list * args)
65 {
66  u32 dev_instance = va_arg (*args, u32);
67  return format (s, "pppoe_session%d", dev_instance);
68 }
69 
70 static clib_error_t *
72 {
73  u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
75  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
76 
77  return /* no error */ 0;
78 }
79 
80 /* *INDENT-OFF* */
81 VNET_DEVICE_CLASS (pppoe_device_class,static) = {
82  .name = "PPPoE",
83  .format_device_name = format_pppoe_name,
84  .admin_up_down_function = pppoe_interface_admin_up_down,
85 };
86 /* *INDENT-ON* */
87 
88 static u8 *
89 format_pppoe_header_with_length (u8 * s, va_list * args)
90 {
91  u32 dev_instance = va_arg (*args, u32);
92  s = format (s, "unimplemented dev %u", dev_instance);
93  return s;
94 }
95 
96 static u8 *
99  vnet_link_t link_type, const void *dst_address)
100 {
101  int len = sizeof (pppoe_header_t) + sizeof (ethernet_header_t);
102  pppoe_main_t *pem = &pppoe_main;
103  pppoe_session_t *t;
104  u32 session_id;
105  u8 *rw = 0;
106 
107  session_id = pem->session_index_by_sw_if_index[sw_if_index];
108  t = pool_elt_at_index (pem->sessions, session_id);
109 
111 
112  ethernet_header_t *eth_hdr = (ethernet_header_t *) rw;
113  clib_memcpy (eth_hdr->dst_address, t->client_mac, 6);
114  clib_memcpy (eth_hdr->src_address, t->local_mac, 6);
115  eth_hdr->type = clib_host_to_net_u16 (ETHERNET_TYPE_PPPOE_SESSION);
116 
117  pppoe_header_t *pppoe = (pppoe_header_t *) (eth_hdr + 1);
118  pppoe->ver_type = PPPOE_VER_TYPE;
119  pppoe->code = 0;
120  pppoe->session_id = clib_host_to_net_u16 (t->session_id);
121  pppoe->length = 0; /* To be filled in at run-time */
122 
123  switch (link_type)
124  {
125  case VNET_LINK_IP4:
126  pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip4);
127  break;
128  case VNET_LINK_IP6:
129  pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip6);
130  break;
131  default:
132  break;
133  }
134 
135  return rw;
136 }
137 
138 /**
139  * @brief Fixup the adj rewrite post encap. Insert the packet's length
140  */
141 static void
143  const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
144 {
145  const pppoe_session_t *t;
146  pppoe_header_t *pppoe0;
147 
148  /* update the rewrite string */
149  pppoe0 = vlib_buffer_get_current (b0) + sizeof (ethernet_header_t);
150 
151  pppoe0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
152  - sizeof (pppoe_header_t)
153  + sizeof (pppoe0->ppp_proto)
154  - sizeof (ethernet_header_t));
155  /* Swap to the the packet's output interface to the encap (not the
156  * session) interface */
157  t = data;
158  vnet_buffer (b0)->sw_if_index[VLIB_TX] = t->encap_if_index;
159 }
160 
161 static void
163 {
164  pppoe_main_t *pem = &pppoe_main;
165  dpo_id_t dpo = DPO_INVALID;
166  ip_adjacency_t *adj;
167  pppoe_session_t *t;
168  u32 session_id;
169 
170  ASSERT (ADJ_INDEX_INVALID != ai);
171 
172  adj = adj_get (ai);
173  session_id = pem->session_index_by_sw_if_index[sw_if_index];
174  t = pool_elt_at_index (pem->sessions, session_id);
175 
176  switch (adj->lookup_next_index)
177  {
178  case IP_LOOKUP_NEXT_ARP:
183  pppoe_build_rewrite (vnm,
184  sw_if_index,
185  adj->ia_link,
186  NULL));
187  break;
189  /*
190  * Construct a partial rewrite from the known ethernet mcast dest MAC
191  * There's no MAC fixup, so the last 2 parameters are 0
192  */
195  pppoe_build_rewrite (vnm,
196  sw_if_index,
197  adj->ia_link,
198  NULL), 0, 0);
199  break;
200 
201  case IP_LOOKUP_NEXT_DROP:
202  case IP_LOOKUP_NEXT_PUNT:
208  case IP_LOOKUP_N_NEXT:
209  ASSERT (0);
210  break;
211  }
212 
214  t->encap_if_index, &dpo);
215 
216  adj_nbr_midchain_stack (ai, &dpo);
217 
218  dpo_reset (&dpo);
219 }
220 
221 /* *INDENT-OFF* */
222 VNET_HW_INTERFACE_CLASS (pppoe_hw_class) =
223 {
224  .name = "PPPoE",
225  .format_header = format_pppoe_header_with_length,
226  .build_rewrite = pppoe_build_rewrite,
227  .update_adjacency = pppoe_update_adj,
229 };
230 /* *INDENT-ON* */
231 
232 #define foreach_copy_field \
233 _(session_id) \
234 _(encap_if_index) \
235 _(decap_fib_index) \
236 _(client_ip)
237 
238 static bool
240  u32 decap_fib_index)
241 {
242  vlib_main_t *vm = pem->vlib_main;
243  u32 input_idx = (!is_ip6) ? ip4_input_node.index : ip6_input_node.index;
244  vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx);
245 
246  return decap_fib_index < r->n_next_nodes;
247 }
248 
251 {
252  pppoe_main_t *pem = &pppoe_main;
253  pppoe_session_t *t = 0;
254  vnet_main_t *vnm = pem->vnet_main;
255  u32 hw_if_index = ~0;
256  u32 sw_if_index = ~0;
257  u32 is_ip6 = a->is_ip6;
258  pppoe_entry_key_t cached_key;
259  pppoe_entry_result_t cached_result;
260  u32 bucket;
262  pppoe_entry_result_t result;
265  fib_prefix_t pfx;
266 
267  cached_key.raw = ~0;
268  cached_result.raw = ~0; /* warning be gone */
269  clib_memset (&pfx, 0, sizeof (pfx));
270 
271  if (!is_ip6)
272  {
273  pfx.fp_addr.ip4.as_u32 = a->client_ip.ip4.as_u32;
274  pfx.fp_len = 32;
276  }
277  else
278  {
279  pfx.fp_addr.ip6.as_u64[0] = a->client_ip.ip6.as_u64[0];
280  pfx.fp_addr.ip6.as_u64[1] = a->client_ip.ip6.as_u64[1];
281  pfx.fp_len = 128;
283  }
284 
285  /* Get encap_if_index and local mac address from link_table */
286  pppoe_lookup_1 (&pem->link_table, &cached_key, &cached_result,
287  a->client_mac, 0, &key, &bucket, &result);
288  a->encap_if_index = result.fields.sw_if_index;
289 
290  if (a->encap_if_index == ~0)
291  return VNET_API_ERROR_INVALID_SW_IF_INDEX;
292 
293  si = vnet_get_sw_interface (vnm, a->encap_if_index);
294  hi = vnet_get_hw_interface (vnm, si->hw_if_index);
295 
296  /* lookup session_table */
297  pppoe_lookup_1 (&pem->session_table, &cached_key, &cached_result,
298  a->client_mac, clib_host_to_net_u16 (a->session_id),
299  &key, &bucket, &result);
300 
301  /* learn client session */
302  pppoe_learn_process (&pem->session_table, a->encap_if_index,
303  &key, &cached_key, &bucket, &result);
304 
305  if (a->is_add)
306  {
307  /* adding a session: session must not already exist */
308  if (result.fields.session_index != ~0)
309  return VNET_API_ERROR_TUNNEL_EXIST;
310 
311  /*if not set explicitly, default to ip4 */
312  if (!pppoe_decap_next_is_valid (pem, is_ip6, a->decap_fib_index))
313  return VNET_API_ERROR_INVALID_DECAP_NEXT;
314 
316  clib_memset (t, 0, sizeof (*t));
317 
318  clib_memcpy (t->local_mac, hi->hw_address, 6);
319 
320  /* copy from arg structure */
321 #define _(x) t->x = a->x;
323 #undef _
324 
325  clib_memcpy (t->client_mac, a->client_mac, 6);
326 
327  /* update pppoe fib with session_index */
328  result.fields.session_index = t - pem->sessions;
329  pppoe_update_1 (&pem->session_table,
330  a->client_mac, clib_host_to_net_u16 (a->session_id),
331  &key, &bucket, &result);
332 
335  {
337  hw_if_index = pem->free_pppoe_session_hw_if_indices
339  _vec_len (pem->free_pppoe_session_hw_if_indices) -= 1;
340 
341  hi = vnet_get_hw_interface (vnm, hw_if_index);
342  hi->dev_instance = t - pem->sessions;
343  hi->hw_instance = hi->dev_instance;
344 
345  /* clear old stats of freed session before reuse */
346  sw_if_index = hi->sw_if_index;
350  sw_if_index);
353  sw_if_index);
356  sw_if_index);
358  }
359  else
360  {
361  hw_if_index = vnet_register_interface
362  (vnm, pppoe_device_class.index, t - pem->sessions,
363  pppoe_hw_class.index, t - pem->sessions);
364  hi = vnet_get_hw_interface (vnm, hw_if_index);
365  }
366 
367  t->hw_if_index = hw_if_index;
368  t->sw_if_index = sw_if_index = hi->sw_if_index;
369 
371  ~0);
373 
374  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
376  vnet_sw_interface_set_flags (vnm, sw_if_index,
378 
379  /* add reverse route for client ip */
381  pppoe_fib_src, FIB_ENTRY_FLAG_NONE,
383  &pfx.fp_addr, sw_if_index, ~0,
384  1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
385 
386  }
387  else
388  {
389  /* deleting a session: session must exist */
390  if (result.fields.session_index == ~0)
391  return VNET_API_ERROR_NO_SUCH_ENTRY;
392 
393  t = pool_elt_at_index (pem->sessions, result.fields.session_index);
394  sw_if_index = t->sw_if_index;
395 
396  vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ );
399 
401 
403 
404  /* update pppoe fib with session_inde=~0x */
405  result.fields.session_index = ~0;
406  pppoe_update_1 (&pem->session_table,
407  a->client_mac, clib_host_to_net_u16 (a->session_id),
408  &key, &bucket, &result);
409 
410 
411  /* delete reverse route for client ip */
413  pppoe_fib_src,
415  &pfx.fp_addr,
416  sw_if_index, ~0, 1,
418 
419  pool_put (pem->sessions, t);
420  }
421 
422  if (sw_if_indexp)
423  *sw_if_indexp = sw_if_index;
424 
425  return 0;
426 }
427 
428 static clib_error_t *
430  unformat_input_t * input,
431  vlib_cli_command_t * cmd)
432 {
433  unformat_input_t _line_input, *line_input = &_line_input;
434  u16 session_id = 0;
435  ip46_address_t client_ip;
436  u8 is_add = 1;
437  u8 client_ip_set = 0;
438  u8 ipv4_set = 0;
439  u8 ipv6_set = 0;
440  u32 encap_if_index = 0;
441  u32 decap_fib_index = 0;
442  u8 client_mac[6] = { 0 };
443  u8 client_mac_set = 0;
444  int rv;
445  u32 tmp;
447  u32 session_sw_if_index;
448  clib_error_t *error = NULL;
449 
450  /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
451  clib_memset (&client_ip, 0, sizeof client_ip);
452 
453  /* Get a line of input. */
454  if (!unformat_user (input, unformat_line_input, line_input))
455  return 0;
456 
457  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
458  {
459  if (unformat (line_input, "del"))
460  {
461  is_add = 0;
462  }
463  else if (unformat (line_input, "session-id %d", &session_id))
464  ;
465  else if (unformat (line_input, "client-ip %U",
466  unformat_ip4_address, &client_ip.ip4))
467  {
468  client_ip_set = 1;
469  ipv4_set = 1;
470  }
471  else if (unformat (line_input, "client-ip %U",
472  unformat_ip6_address, &client_ip.ip6))
473  {
474  client_ip_set = 1;
475  ipv6_set = 1;
476  }
477  else if (unformat (line_input, "decap-vrf-id %d", &tmp))
478  {
479  if (ipv6_set)
480  decap_fib_index = fib_table_find (FIB_PROTOCOL_IP6, tmp);
481  else
482  decap_fib_index = fib_table_find (FIB_PROTOCOL_IP4, tmp);
483 
484  if (decap_fib_index == ~0)
485  {
486  error =
487  clib_error_return (0, "nonexistent decap fib id %d", tmp);
488  goto done;
489  }
490  }
491  else
492  if (unformat
493  (line_input, "client-mac %U", unformat_ethernet_address,
494  client_mac))
495  client_mac_set = 1;
496  else
497  {
498  error = clib_error_return (0, "parse error: '%U'",
499  format_unformat_error, line_input);
500  goto done;
501  }
502  }
503 
504  if (client_ip_set == 0)
505  {
506  error =
507  clib_error_return (0, "session client ip address not specified");
508  goto done;
509  }
510 
511  if (ipv4_set && ipv6_set)
512  {
513  error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
514  goto done;
515  }
516 
517  if (client_mac_set == 0)
518  {
519  error = clib_error_return (0, "session client mac not specified");
520  goto done;
521  }
522 
523  clib_memset (a, 0, sizeof (*a));
524 
525  a->is_add = is_add;
526  a->is_ip6 = ipv6_set;
527 
528 #define _(x) a->x = x;
530 #undef _
531 
532  clib_memcpy (a->client_mac, client_mac, 6);
533 
534  rv = vnet_pppoe_add_del_session (a, &session_sw_if_index);
535 
536  switch (rv)
537  {
538  case 0:
539  if (is_add)
541  vnet_get_main (), session_sw_if_index);
542  break;
543 
544  case VNET_API_ERROR_TUNNEL_EXIST:
545  error = clib_error_return (0, "session already exists...");
546  goto done;
547 
548  case VNET_API_ERROR_NO_SUCH_ENTRY:
549  error = clib_error_return (0, "session does not exist...");
550  goto done;
551 
552  default:
553  error = clib_error_return
554  (0, "vnet_pppoe_add_del_session returned %d", rv);
555  goto done;
556  }
557 
558 done:
559  unformat_free (line_input);
560 
561  return error;
562 }
563 
564 /*?
565  * Add or delete a PPPoE Session.
566  *
567  * @cliexpar
568  * Example of how to create a PPPoE Session:
569  * @cliexcmd{create pppoe session client-ip 10.0.3.1 session-id 13
570  * client-mac 00:01:02:03:04:05 }
571  * Example of how to delete a PPPoE Session:
572  * @cliexcmd{create pppoe session client-ip 10.0.3.1 session-id 13
573  * client-mac 00:01:02:03:04:05 del }
574  ?*/
575 /* *INDENT-OFF* */
576 VLIB_CLI_COMMAND (create_pppoe_session_command, static) = {
577  .path = "create pppoe session",
578  .short_help =
579  "create pppoe session client-ip <client-ip> session-id <nn>"
580  " client-mac <client-mac> [decap-vrf-id <nn>] [del]",
582 };
583 /* *INDENT-ON* */
584 
585 /* *INDENT-OFF* */
586 static clib_error_t *
588  unformat_input_t * input,
589  vlib_cli_command_t * cmd)
590 {
591  pppoe_main_t *pem = &pppoe_main;
592  pppoe_session_t *t;
593 
594  if (pool_elts (pem->sessions) == 0)
595  vlib_cli_output (vm, "No pppoe sessions configured...");
596 
597  pool_foreach (t, pem->sessions,
598  ({
599  vlib_cli_output (vm, "%U",format_pppoe_session, t);
600  }));
601 
602  return 0;
603 }
604 /* *INDENT-ON* */
605 
606 /*?
607  * Display all the PPPoE Session entries.
608  *
609  * @cliexpar
610  * Example of how to display the PPPoE Session entries:
611  * @cliexstart{show pppoe session}
612  * [0] client-ip 10.0.3.1 session_id 13 encap-if-index 0 decap-vrf-id 13 sw_if_index 5
613  * local-mac a0:b0:c0:d0:e0:f0 client-mac 00:01:02:03:04:05
614  * @cliexend
615  ?*/
616 /* *INDENT-OFF* */
617 VLIB_CLI_COMMAND (show_pppoe_session_command, static) = {
618  .path = "show pppoe session",
619  .short_help = "show pppoe session",
620  .function = show_pppoe_session_command_fn,
621 };
622 /* *INDENT-ON* */
623 
625 {
630 
631 static int
632 pppoe_show_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
633 {
634  pppoe_show_walk_ctx_t *ctx = arg;
635  pppoe_entry_result_t result;
637 
638  if (ctx->first_entry)
639  {
640  ctx->first_entry = 0;
641  vlib_cli_output (ctx->vm,
642  "%=19s%=12s%=13s%=14s",
643  "Mac-Address", "session_id", "sw_if_index",
644  "session_index");
645  }
646 
647  key.raw = kvp->key;
648  result.raw = kvp->value;
649 
650  vlib_cli_output (ctx->vm,
651  "%=19U%=12d%=13d%=14d",
653  clib_net_to_host_u16 (key.fields.session_id),
654  result.fields.sw_if_index == ~0
655  ? -1 : result.fields.sw_if_index,
656  result.fields.session_index == ~0
657  ? -1 : result.fields.session_index);
658  ctx->total_entries++;
659 
660  return (BIHASH_WALK_CONTINUE);
661 }
662 
663 /** Display the contents of the PPPoE Fib. */
664 static clib_error_t *
666  unformat_input_t * input, vlib_cli_command_t * cmd)
667 {
668  pppoe_main_t *pem = &pppoe_main;
670  .first_entry = 1,
671  .vm = vm,
672  };
673 
675  (&pem->session_table, pppoe_show_walk_cb, &ctx);
676 
677  if (ctx.total_entries == 0)
678  vlib_cli_output (vm, "no pppoe fib entries");
679  else
680  vlib_cli_output (vm, "%lld pppoe fib entries", ctx.total_entries);
681 
682  return 0;
683 }
684 
685 /*?
686  * This command dispays the MAC Address entries of the PPPoE FIB table.
687  * Output can be filtered to just get the number of MAC Addresses or display
688  * each MAC Address.
689  *
690  * @cliexpar
691  * Example of how to display the number of MAC Address entries in the PPPoE
692  * FIB table:
693  * @cliexstart{show pppoe fib}
694  * Mac Address session_id Interface sw_if_index session_index
695  * 52:54:00:53:18:33 1 GigabitEthernet0/8/0 2 0
696  * 52:54:00:53:18:55 2 GigabitEthernet0/8/1 3 1
697  * @cliexend
698 ?*/
699 /* *INDENT-OFF* */
700 VLIB_CLI_COMMAND (show_pppoe_fib_command, static) = {
701  .path = "show pppoe fib",
702  .short_help = "show pppoe fib",
703  .function = show_pppoe_fib_command_fn,
704 };
705 /* *INDENT-ON* */
706 
707 clib_error_t *
709 {
710  pppoe_main_t *pem = &pppoe_main;
711 
712  pem->vnet_main = vnet_get_main ();
713  pem->vlib_main = vm;
714 
715  /* Create the hash table */
716  BV (clib_bihash_init) (&pem->link_table, "pppoe link table",
718 
719  BV (clib_bihash_init) (&pem->session_table, "pppoe session table",
721 
722  ethernet_register_input_type (vm, ETHERNET_TYPE_PPPOE_SESSION,
723  pppoe_input_node.index);
724 
725  ethernet_register_input_type (vm, ETHERNET_TYPE_PPPOE_DISCOVERY,
726  pppoe_cp_dispatch_node.index);
727 
728  pppoe_fib_src = fib_source_allocate ("pppoe",
731 
732  return 0;
733 }
734 
736 
737 /* *INDENT-OFF* */
739  .version = VPP_BUILD_VER,
740  .description = "PPP over Ethernet (PPPoE)",
741 };
742 /* *INDENT-ON* */
743 
744 /*
745  * fd.io coding-style-patch-verification: ON
746  *
747  * Local Variables:
748  * eval: (c-set-style "gnu")
749  * End:
750  */
u16 ppp_proto
Definition: pppoe.h:43
VLIB_PLUGIN_REGISTER()
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:212
static void pppoe_fixup(vlib_main_t *vm, const ip_adjacency_t *adj, vlib_buffer_t *b0, const void *data)
Fixup the adj rewrite post encap.
Definition: pppoe.c:142
enum fib_source_t_ fib_source_t
The different sources that can create a route.
fib_node_index_t fib_table_entry_path_add(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, fib_entry_flag_t flags, dpo_proto_t next_hop_proto, const ip46_address_t *next_hop, u32 next_hop_sw_if_index, u32 next_hop_fib_index, u32 next_hop_weight, fib_mpls_label_t *next_hop_labels, fib_route_path_flags_t path_flags)
Add one path to an entry (aka route) in the FIB.
Definition: fib_table.c:549
Definition: pppoe.h:112
static_always_inline void pppoe_update_1(BVT(clib_bihash) *table, u8 *mac0, u16 session_id0, pppoe_entry_key_t *key0, u32 *bucket0, pppoe_entry_result_t *result0)
Definition: pppoe.h:308
vlib_main_t * vlib_main
Definition: pppoe.h:175
VNET_HW_INTERFACE_CLASS(pppoe_hw_class)
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
vnet_interface_main_t interface_main
Definition: vnet.h:56
u32 encap_if_index
Definition: pppoe.h:61
#define PPPOE_MEMORY_SIZE
Definition: pppoe.h:106
Multicast Adjacency.
Definition: adj.h:82
u16 session_id
Definition: pppoe.h:55
u64 raw
Definition: pppoe.h:146
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
Broadcast Adjacency.
Definition: adj.h:85
IP unicast adjacency.
Definition: adj.h:227
u8 src_address[6]
Definition: packet.h:56
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
This packet is to be rewritten and forwarded to the next processing node.
Definition: adj.h:73
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:590
struct pppoe_entry_result_t::@645::@647 fields
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:989
static clib_error_t * pppoe_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: pppoe.c:71
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
static fib_source_t pppoe_fib_src
Definition: pppoe.c:40
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:518
static uword vlib_buffer_length_in_chain(vlib_main_t *vm, vlib_buffer_t *b)
Get length in bytes of the buffer chain.
Definition: buffer_funcs.h:402
format_function_t format_vnet_sw_if_index_name
unsigned char u8
Definition: types.h:56
static clib_error_t * show_pppoe_fib_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Display the contents of the PPPoE Fib.
Definition: pppoe.c:665
clib_error_t * pppoe_init(vlib_main_t *vm)
Definition: pppoe.c:708
vnet_link_t ia_link
link/ether-type 1 bytes
Definition: adj.h:335
struct pppoe_entry_key_t::@641::@643 fields
VNET_DEVICE_CLASS(pppoe_device_class, static)
#define clib_memcpy(d, s, n)
Definition: string.h:180
Adjacency to punt this packet.
Definition: adj.h:55
static void pppoe_update_adj(vnet_main_t *vnm, u32 sw_if_index, adj_index_t ai)
Definition: pppoe.c:162
static ip_adjacency_t * adj_get(adj_index_t adj_index)
Get a pointer to an adjacency object from its index.
Definition: adj.h:459
u8 * format_ethernet_address(u8 *s, va_list *args)
Definition: format.c:44
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:513
unformat_function_t unformat_ip4_address
Definition: format.h:68
vl_api_interface_index_t sw_if_index
Definition: gre.api:53
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:173
dpo_proto_t vnet_link_to_dpo_proto(vnet_link_t linkt)
Definition: dpo.c:96
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:867
u8 dst_address[6]
Definition: packet.h:55
Aggregate type for a prefix.
Definition: fib_types.h:203
#define clib_error_return(e, args...)
Definition: error.h:99
unsigned int u32
Definition: types.h:88
u32 fib_table_find(fib_protocol_t proto, u32 table_id)
Get the index of the FIB for a Table-ID.
Definition: fib_table.c:1097
u16 fp_len
The mask length.
Definition: fib_types.h:207
static bool pppoe_decap_next_is_valid(pppoe_main_t *pem, u32 is_ip6, u32 decap_fib_index)
Definition: pppoe.c:239
u32 vnet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, u32 hw_class_index, u32 hw_instance)
Definition: interface.c:768
static u8 * format_pppoe_header_with_length(u8 *s, va_list *args)
Definition: pppoe.c:89
bool is_ip6
Definition: ip.api:43
fib_source_t fib_source_allocate(const char *name, fib_source_priority_t prio, fib_source_behaviour_t bh)
Definition: fib_source.c:118
Definition: fib_entry.h:112
unformat_function_t unformat_line_input
Definition: format.h:283
u64 raw
Definition: pppoe.h:126
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:170
#define ADJ_INDEX_INVALID
Invalid ADJ index - used when no adj is known likewise blazoned capitals INVALID speak volumes where ...
Definition: adj_types.h:36
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:534
static void vlib_zero_combined_counter(vlib_combined_counter_main_t *cm, u32 index)
Clear a combined counter Clears the set of per-thread counters.
Definition: counter.h:285
vlib_node_registration_t ip4_input_node
Global ip4 input node.
Definition: ip4_input.c:385
void clib_bihash_foreach_key_value_pair(clib_bihash *h, clib_bihash_foreach_key_value_pair_cb *callback, void *arg)
Visit active (key,value) pairs in a bi-hash table.
#define FIB_SOURCE_PRIORITY_HI
Some priority values that plugins might use when they are not to concerned where in the list they&#39;ll ...
Definition: fib_source.h:273
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:226
long ctx[MAX_CONNS]
Definition: main.c:144
vlib_node_registration_t ip6_input_node
(constructor) VLIB_REGISTER_NODE (ip6_input_node)
Definition: ip6_input.c:230
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
u16 session_id
Definition: pppoe.h:41
u16 length
Definition: pppoe.h:42
static int pppoe_show_walk_cb(BVT(clib_bihash_kv) *kvp, void *arg)
Definition: pppoe.c:632
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:229
vlib_main_t * vm
Definition: pppoe.c:626
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:302
add paths with [mpls] path extensions
Definition: fib_source.h:203
u32 hw_if_index
Definition: pppoe.h:71
ip46_address_t client_ip
Definition: pppoe.h:58
This packet matches an "interface route" and packets need to be passed to ARP to find rewrite string ...
Definition: adj.h:68
vnet_sw_interface_flags_t flags
Definition: interface.h:724
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:866
void interface_tx_dpo_add_or_lock(dpo_proto_t proto, u32 sw_if_index, dpo_id_t *dpo)
The data-path object representing transmitting the packet on a n interface.
void clib_bihash_init(clib_bihash *h, char *name, u32 nbuckets, uword memory_size)
initialize a bounded index extensible hash table
vlib_main_t * vm
Definition: in2out_ed.c:1599
u8 len
Definition: ip_types.api:92
format_function_t format_ip46_address
Definition: ip46_address.h:50
BVT(clib_bihash)
Definition: l2_fib.c:972
unformat_function_t unformat_ip6_address
Definition: format.h:89
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P with alignment A.
Definition: pool.h:246
pppoe_main_t pppoe_main
Definition: pppoe.c:38
static_always_inline void pppoe_learn_process(BVT(clib_bihash) *table, u32 sw_if_index0, pppoe_entry_key_t *key0, pppoe_entry_key_t *cached_key, u32 *bucket0, pppoe_entry_result_t *result0)
Perform learning on one packet based on the mac table lookup result.
Definition: pppoe.h:239
This packet matches an "incomplete adjacency" and packets need to be passed to ARP to find rewrite st...
Definition: adj.h:63
Adjacency to drop this packet.
Definition: adj.h:53
#define UNFORMAT_END_OF_INPUT
Definition: format.h:145
u32 flags
Definition: vhost_user.h:248
vlib_node_registration_t pppoe_input_node
(constructor) VLIB_REGISTER_NODE (pppoe_input_node)
Definition: pppoe_decap.c:400
Multicast Midchain Adjacency.
Definition: adj.h:89
static clib_error_t * pppoe_add_del_session_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: pppoe.c:429
#define PPPOE_NUM_BUCKETS
Definition: pppoe.h:105
void adj_nbr_midchain_update_rewrite(adj_index_t adj_index, adj_midchain_fixup_t fixup, const void *fixup_data, adj_flags_t flags, u8 *rewrite)
adj_nbr_midchain_update_rewrite
Definition: adj_midchain.c:434
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
Definition: node_funcs.h:89
static void vnet_interface_counter_unlock(vnet_interface_main_t *im)
Definition: interface.h:897
u8 * format_pppoe_session(u8 *s, va_list *args)
Definition: pppoe.c:43
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
void adj_mcast_midchain_update_rewrite(adj_index_t adj_index, adj_midchain_fixup_t fixup, const void *fixup_data, adj_flags_t flags, u8 *rewrite, u8 offset, u32 mask)
adj_mcast_midchain_update_rewrite
Definition: adj_mcast.c:139
pppoe_session_t * sessions
Definition: pppoe.h:154
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:152
This packets follow a mid-chain adjacency.
Definition: adj.h:76
static void vnet_interface_counter_lock(vnet_interface_main_t *im)
Definition: interface.h:890
uword unformat_ethernet_address(unformat_input_t *input, va_list *args)
Definition: format.c:233
#define ASSERT(truth)
u16 session_id
Definition: gre.api:50
void adj_nbr_midchain_stack(adj_index_t adj_index, const dpo_id_t *next)
adj_nbr_midchain_stack
Definition: adj_midchain.c:627
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:689
u8 data[128]
Definition: ipsec_types.api:89
vnet_main_t * vnet_main
Definition: pppoe.h:176
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
static u8 * format_pppoe_name(u8 *s, va_list *args)
Definition: pppoe.c:64
Definition: pppoe.h:135
u32 sw_if_index
Definition: pppoe.h:70
vlib_node_registration_t pppoe_cp_dispatch_node
(constructor) VLIB_REGISTER_NODE (pppoe_cp_dispatch_node)
static void vlib_zero_simple_counter(vlib_simple_counter_main_t *cm, u32 index)
Clear a simple counter Clears the set of per-thread u16 counters, and the u64 counter.
Definition: counter.h:139
u8 client_mac[6]
Definition: pppoe.h:67
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:324
void fib_table_entry_path_remove(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, dpo_proto_t next_hop_proto, const ip46_address_t *next_hop, u32 next_hop_sw_if_index, u32 next_hop_fib_index, u32 next_hop_weight, fib_route_path_flags_t path_flags)
remove one path to an entry (aka route) in the FIB.
Definition: fib_table.c:722
void ethernet_register_input_type(vlib_main_t *vm, ethernet_type_t type, u32 node_index)
Definition: node.c:2276
u32 * session_index_by_sw_if_index
Definition: pppoe.h:166
vl_api_ip4_address_t hi
Definition: arp.api:37
typedef key
Definition: ipsec_types.api:85
int vnet_pppoe_add_del_session(vnet_pppoe_add_del_session_args_t *a, u32 *sw_if_indexp)
Definition: pppoe.c:250
struct pppoe_show_walk_ctx_t_ pppoe_show_walk_ctx_t
This packets needs to go to ICMP error.
Definition: adj.h:79
This packet is for one of our own IP addresses.
Definition: adj.h:58
Definition: defs.h:47
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
#define foreach_copy_field
Definition: pppoe.c:232
static u8 * pppoe_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Definition: pppoe.c:97
ip_lookup_next_t lookup_next_index
Next hop after ip4-lookup.
Definition: adj.h:329
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags)
Definition: interface.c:498
u32 decap_fib_index
FIB indices - inner IP packet lookup here.
Definition: pppoe.h:64
VLIB buffer representation.
Definition: buffer.h:102
static void unformat_free(unformat_input_t *i)
Definition: format.h:163
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:197
a point 2 point interface
Definition: interface.h:375
static clib_error_t * show_pppoe_session_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: pppoe.c:587
#define vnet_buffer(b)
Definition: buffer.h:417
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static_always_inline void pppoe_lookup_1(BVT(clib_bihash) *table, pppoe_entry_key_t *cached_key, pppoe_entry_result_t *cached_result, u8 *mac0, u16 session_id0, pppoe_entry_key_t *key0, u32 *bucket0, pppoe_entry_result_t *result0)
Definition: pppoe.h:274
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, vnet_sw_interface_flags_t flags)
Definition: interface.c:507
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:232
u8 si
Definition: lisp_types.api:47
u32 * free_pppoe_session_hw_if_indices
Definition: pppoe.h:163
#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:554
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
u8 ver_type
Definition: pppoe.h:39
u8 local_mac[6]
Definition: pppoe.h:66
#define PPPOE_VER_TYPE
Definition: pppoe.h:46
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:171
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128