FD.io VPP  v18.10-34-gcce845e
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 
40 u8 *
41 format_pppoe_session (u8 * s, va_list * args)
42 {
43  pppoe_session_t *t = va_arg (*args, pppoe_session_t *);
44  pppoe_main_t *pem = &pppoe_main;
45 
46  s = format (s, "[%d] sw-if-index %d client-ip %U session-id %d ",
47  t - pem->sessions, t->sw_if_index,
49  t->session_id);
50 
51  s = format (s, "encap-if-index %d decap-fib-index %d\n",
53 
54  s = format (s, " local-mac %U client-mac %U",
57 
58  return s;
59 }
60 
61 static u8 *
62 format_pppoe_name (u8 * s, va_list * args)
63 {
64  u32 dev_instance = va_arg (*args, u32);
65  return format (s, "pppoe_session%d", dev_instance);
66 }
67 
68 static uword
70  vlib_node_runtime_t * node, vlib_frame_t * frame)
71 {
72  clib_warning ("you shouldn't be here, leaking buffers...");
73  return frame->n_vectors;
74 }
75 
76 static clib_error_t *
78 {
79  u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
81  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
82 
83  return /* no error */ 0;
84 }
85 
86 /* *INDENT-OFF* */
87 VNET_DEVICE_CLASS (pppoe_device_class,static) = {
88  .name = "PPPoE",
89  .format_device_name = format_pppoe_name,
90  .tx_function = dummy_interface_tx,
91  .admin_up_down_function = pppoe_interface_admin_up_down,
92 };
93 /* *INDENT-ON* */
94 
95 static u8 *
96 format_pppoe_header_with_length (u8 * s, va_list * args)
97 {
98  u32 dev_instance = va_arg (*args, u32);
99  s = format (s, "unimplemented dev %u", dev_instance);
100  return s;
101 }
102 
103 static u8 *
106  vnet_link_t link_type, const void *dst_address)
107 {
108  int len = sizeof (pppoe_header_t) + sizeof (ethernet_header_t);
109  pppoe_main_t *pem = &pppoe_main;
110  pppoe_session_t *t;
111  u32 session_id;
112  u8 *rw = 0;
113 
114  session_id = pem->session_index_by_sw_if_index[sw_if_index];
115  t = pool_elt_at_index (pem->sessions, session_id);
116 
118 
119  ethernet_header_t *eth_hdr = (ethernet_header_t *) rw;
120  clib_memcpy (eth_hdr->dst_address, t->client_mac, 6);
121  clib_memcpy (eth_hdr->src_address, t->local_mac, 6);
122  eth_hdr->type = clib_host_to_net_u16 (ETHERNET_TYPE_PPPOE_SESSION);
123 
124  pppoe_header_t *pppoe = (pppoe_header_t *) (eth_hdr + 1);
125  pppoe->ver_type = PPPOE_VER_TYPE;
126  pppoe->code = 0;
127  pppoe->session_id = clib_host_to_net_u16 (t->session_id);
128  pppoe->length = 0; /* To be filled in at run-time */
129 
130  switch (link_type)
131  {
132  case VNET_LINK_IP4:
133  pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip4);
134  break;
135  case VNET_LINK_IP6:
136  pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip6);
137  break;
138  default:
139  break;
140  }
141 
142  return rw;
143 }
144 
145 /**
146  * @brief Fixup the adj rewrite post encap. Insert the packet's length
147  */
148 static void
150  ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
151 {
152  const pppoe_session_t *t;
153  pppoe_header_t *pppoe0;
154 
155  /* update the rewrite string */
156  pppoe0 = vlib_buffer_get_current (b0) + sizeof (ethernet_header_t);
157 
158  pppoe0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
159  - sizeof (pppoe_header_t)
160  + sizeof (pppoe0->ppp_proto)
161  - sizeof (ethernet_header_t));
162  /* Swap to the the packet's output interface to the encap (not the
163  * session) interface */
164  t = data;
165  vnet_buffer (b0)->sw_if_index[VLIB_TX] = t->encap_if_index;
166 }
167 
168 static void
170 {
171  pppoe_main_t *pem = &pppoe_main;
172  dpo_id_t dpo = DPO_INVALID;
173  ip_adjacency_t *adj;
174  pppoe_session_t *t;
175  u32 session_id;
176 
177  ASSERT (ADJ_INDEX_INVALID != ai);
178 
179  adj = adj_get (ai);
180  session_id = pem->session_index_by_sw_if_index[sw_if_index];
181  t = pool_elt_at_index (pem->sessions, session_id);
182 
183  switch (adj->lookup_next_index)
184  {
185  case IP_LOOKUP_NEXT_ARP:
190  pppoe_build_rewrite (vnm,
191  sw_if_index,
192  adj->ia_link,
193  NULL));
194  break;
196  /*
197  * Construct a partial rewrite from the known ethernet mcast dest MAC
198  * There's no MAC fixup, so the last 2 parameters are 0
199  */
202  pppoe_build_rewrite (vnm,
203  sw_if_index,
204  adj->ia_link,
205  NULL), 0, 0);
206  break;
207 
208  case IP_LOOKUP_NEXT_DROP:
209  case IP_LOOKUP_NEXT_PUNT:
215  case IP_LOOKUP_N_NEXT:
216  ASSERT (0);
217  break;
218  }
219 
221  t->encap_if_index, &dpo);
222 
223  adj_nbr_midchain_stack (ai, &dpo);
224 
225  dpo_reset (&dpo);
226 }
227 
228 /* *INDENT-OFF* */
229 VNET_HW_INTERFACE_CLASS (pppoe_hw_class) =
230 {
231  .name = "PPPoE",
232  .format_header = format_pppoe_header_with_length,
233  .build_rewrite = pppoe_build_rewrite,
234  .update_adjacency = pppoe_update_adj,
236 };
237 /* *INDENT-ON* */
238 
239 #define foreach_copy_field \
240 _(session_id) \
241 _(encap_if_index) \
242 _(decap_fib_index) \
243 _(client_ip)
244 
245 static bool
247  u32 decap_fib_index)
248 {
249  vlib_main_t *vm = pem->vlib_main;
250  u32 input_idx = (!is_ip6) ? ip4_input_node.index : ip6_input_node.index;
251  vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx);
252 
253  return decap_fib_index < r->n_next_nodes;
254 }
255 
258 {
259  pppoe_main_t *pem = &pppoe_main;
260  pppoe_session_t *t = 0;
261  vnet_main_t *vnm = pem->vnet_main;
262  u32 hw_if_index = ~0;
263  u32 sw_if_index = ~0;
264  u32 is_ip6 = a->is_ip6;
265  pppoe_entry_key_t cached_key;
266  pppoe_entry_result_t cached_result;
267  u32 bucket;
268  pppoe_entry_key_t key;
269  pppoe_entry_result_t result;
272  fib_prefix_t pfx;
273 
274  cached_key.raw = ~0;
275  cached_result.raw = ~0; /* warning be gone */
276  memset (&pfx, 0, sizeof (pfx));
277 
278  if (!is_ip6)
279  {
280  pfx.fp_addr.ip4.as_u32 = a->client_ip.ip4.as_u32;
281  pfx.fp_len = 32;
283  }
284  else
285  {
286  pfx.fp_addr.ip6.as_u64[0] = a->client_ip.ip6.as_u64[0];
287  pfx.fp_addr.ip6.as_u64[1] = a->client_ip.ip6.as_u64[1];
288  pfx.fp_len = 128;
290  }
291 
292  /* Get encap_if_index and local mac address from link_table */
293  pppoe_lookup_1 (&pem->link_table, &cached_key, &cached_result,
294  a->client_mac, 0, &key, &bucket, &result);
295  a->encap_if_index = result.fields.sw_if_index;
296 
297  if (a->encap_if_index == ~0)
298  return VNET_API_ERROR_INVALID_SW_IF_INDEX;
299 
300  si = vnet_get_sw_interface (vnm, a->encap_if_index);
301  hi = vnet_get_hw_interface (vnm, si->hw_if_index);
302 
303  /* lookup session_table */
304  pppoe_lookup_1 (&pem->session_table, &cached_key, &cached_result,
305  a->client_mac, clib_host_to_net_u16 (a->session_id),
306  &key, &bucket, &result);
307 
308  /* learn client session */
309  pppoe_learn_process (&pem->session_table, a->encap_if_index,
310  &key, &cached_key, &bucket, &result);
311 
312  if (a->is_add)
313  {
314  /* adding a session: session must not already exist */
315  if (result.fields.session_index != ~0)
316  return VNET_API_ERROR_TUNNEL_EXIST;
317 
318  /*if not set explicitly, default to ip4 */
319  if (!pppoe_decap_next_is_valid (pem, is_ip6, a->decap_fib_index))
320  return VNET_API_ERROR_INVALID_DECAP_NEXT;
321 
323  memset (t, 0, sizeof (*t));
324 
325  clib_memcpy (t->local_mac, hi->hw_address, 6);
326 
327  /* copy from arg structure */
328 #define _(x) t->x = a->x;
330 #undef _
331 
332  clib_memcpy (t->client_mac, a->client_mac, 6);
333 
334  /* update pppoe fib with session_index */
335  result.fields.session_index = t - pem->sessions;
336  pppoe_update_1 (&pem->session_table,
337  a->client_mac, clib_host_to_net_u16 (a->session_id),
338  &key, &bucket, &result);
339 
342  {
344  hw_if_index = pem->free_pppoe_session_hw_if_indices
346  _vec_len (pem->free_pppoe_session_hw_if_indices) -= 1;
347 
348  hi = vnet_get_hw_interface (vnm, hw_if_index);
349  hi->dev_instance = t - pem->sessions;
350  hi->hw_instance = hi->dev_instance;
351 
352  /* clear old stats of freed session before reuse */
353  sw_if_index = hi->sw_if_index;
357  sw_if_index);
360  sw_if_index);
363  sw_if_index);
365  }
366  else
367  {
368  hw_if_index = vnet_register_interface
369  (vnm, pppoe_device_class.index, t - pem->sessions,
370  pppoe_hw_class.index, t - pem->sessions);
371  hi = vnet_get_hw_interface (vnm, hw_if_index);
372  }
373 
374  t->hw_if_index = hw_if_index;
375  t->sw_if_index = sw_if_index = hi->sw_if_index;
376 
378  ~0);
380 
381  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
383  vnet_sw_interface_set_flags (vnm, sw_if_index,
385 
386  /* add reverse route for client ip */
390  &pfx.fp_addr, sw_if_index, ~0,
392 
393  }
394  else
395  {
396  /* deleting a session: session must exist */
397  if (result.fields.session_index == ~0)
398  return VNET_API_ERROR_NO_SUCH_ENTRY;
399 
400  t = pool_elt_at_index (pem->sessions, result.fields.session_index);
401  sw_if_index = t->sw_if_index;
402 
403  vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ );
406 
408 
410 
411  /* update pppoe fib with session_inde=~0x */
412  result.fields.session_index = ~0;
413  pppoe_update_1 (&pem->session_table,
414  a->client_mac, clib_host_to_net_u16 (a->session_id),
415  &key, &bucket, &result);
416 
417 
418  /* delete reverse route for client ip */
422  &pfx.fp_addr,
423  sw_if_index, ~0, 1,
425 
426  pool_put (pem->sessions, t);
427  }
428 
429  if (sw_if_indexp)
430  *sw_if_indexp = sw_if_index;
431 
432  return 0;
433 }
434 
435 static clib_error_t *
437  unformat_input_t * input,
438  vlib_cli_command_t * cmd)
439 {
440  unformat_input_t _line_input, *line_input = &_line_input;
441  u16 session_id = 0;
442  ip46_address_t client_ip;
443  u8 is_add = 1;
444  u8 client_ip_set = 0;
445  u8 ipv4_set = 0;
446  u8 ipv6_set = 0;
447  u32 encap_if_index = 0;
448  u32 decap_fib_index = 0;
449  u8 client_mac[6] = { 0 };
450  u8 client_mac_set = 0;
451  int rv;
452  u32 tmp;
454  u32 session_sw_if_index;
455  clib_error_t *error = NULL;
456 
457  /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
458  memset (&client_ip, 0, sizeof client_ip);
459 
460  /* Get a line of input. */
461  if (!unformat_user (input, unformat_line_input, line_input))
462  return 0;
463 
464  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
465  {
466  if (unformat (line_input, "del"))
467  {
468  is_add = 0;
469  }
470  else if (unformat (line_input, "session-id %d", &session_id))
471  ;
472  else if (unformat (line_input, "client-ip %U",
473  unformat_ip4_address, &client_ip.ip4))
474  {
475  client_ip_set = 1;
476  ipv4_set = 1;
477  }
478  else if (unformat (line_input, "client-ip %U",
479  unformat_ip6_address, &client_ip.ip6))
480  {
481  client_ip_set = 1;
482  ipv6_set = 1;
483  }
484  else if (unformat (line_input, "decap-vrf-id %d", &tmp))
485  {
486  if (ipv6_set)
487  decap_fib_index = fib_table_find (FIB_PROTOCOL_IP6, tmp);
488  else
489  decap_fib_index = fib_table_find (FIB_PROTOCOL_IP4, tmp);
490 
491  if (decap_fib_index == ~0)
492  {
493  error =
494  clib_error_return (0, "nonexistent decap fib id %d", tmp);
495  goto done;
496  }
497  }
498  else
499  if (unformat
500  (line_input, "client-mac %U", unformat_ethernet_address,
501  client_mac))
502  client_mac_set = 1;
503  else
504  {
505  error = clib_error_return (0, "parse error: '%U'",
506  format_unformat_error, line_input);
507  goto done;
508  }
509  }
510 
511  if (client_ip_set == 0)
512  {
513  error =
514  clib_error_return (0, "session client ip address not specified");
515  goto done;
516  }
517 
518  if (ipv4_set && ipv6_set)
519  {
520  error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
521  goto done;
522  }
523 
524  if (client_mac_set == 0)
525  {
526  error = clib_error_return (0, "session client mac not specified");
527  goto done;
528  }
529 
530  memset (a, 0, sizeof (*a));
531 
532  a->is_add = is_add;
533  a->is_ip6 = ipv6_set;
534 
535 #define _(x) a->x = x;
537 #undef _
538 
539  clib_memcpy (a->client_mac, client_mac, 6);
540 
541  rv = vnet_pppoe_add_del_session (a, &session_sw_if_index);
542 
543  switch (rv)
544  {
545  case 0:
546  if (is_add)
548  vnet_get_main (), session_sw_if_index);
549  break;
550 
551  case VNET_API_ERROR_TUNNEL_EXIST:
552  error = clib_error_return (0, "session already exists...");
553  goto done;
554 
555  case VNET_API_ERROR_NO_SUCH_ENTRY:
556  error = clib_error_return (0, "session does not exist...");
557  goto done;
558 
559  default:
560  error = clib_error_return
561  (0, "vnet_pppoe_add_del_session returned %d", rv);
562  goto done;
563  }
564 
565 done:
566  unformat_free (line_input);
567 
568  return error;
569 }
570 
571 /*?
572  * Add or delete a PPPoE Session.
573  *
574  * @cliexpar
575  * Example of how to create a PPPoE Session:
576  * @cliexcmd{create pppoe session client-ip 10.0.3.1 session-id 13
577  * client-mac 00:01:02:03:04:05 }
578  * Example of how to delete a PPPoE Session:
579  * @cliexcmd{create pppoe session client-ip 10.0.3.1 session-id 13
580  * client-mac 00:01:02:03:04:05 del }
581  ?*/
582 /* *INDENT-OFF* */
583 VLIB_CLI_COMMAND (create_pppoe_session_command, static) = {
584  .path = "create pppoe session",
585  .short_help =
586  "create pppoe session client-ip <client-ip> session-id <nn>"
587  " client-mac <client-mac> [decap-vrf-id <nn>] [del]",
589 };
590 /* *INDENT-ON* */
591 
592 /* *INDENT-OFF* */
593 static clib_error_t *
595  unformat_input_t * input,
596  vlib_cli_command_t * cmd)
597 {
598  pppoe_main_t *pem = &pppoe_main;
599  pppoe_session_t *t;
600 
601  if (pool_elts (pem->sessions) == 0)
602  vlib_cli_output (vm, "No pppoe sessions configured...");
603 
604  pool_foreach (t, pem->sessions,
605  ({
606  vlib_cli_output (vm, "%U",format_pppoe_session, t);
607  }));
608 
609  return 0;
610 }
611 /* *INDENT-ON* */
612 
613 /*?
614  * Display all the PPPoE Session entries.
615  *
616  * @cliexpar
617  * Example of how to display the PPPoE Session entries:
618  * @cliexstart{show pppoe session}
619  * [0] client-ip 10.0.3.1 session_id 13 encap-if-index 0 decap-vrf-id 13 sw_if_index 5
620  * local-mac a0:b0:c0:d0:e0:f0 client-mac 00:01:02:03:04:05
621  * @cliexend
622  ?*/
623 /* *INDENT-OFF* */
624 VLIB_CLI_COMMAND (show_pppoe_session_command, static) = {
625  .path = "show pppoe session",
626  .short_help = "show pppoe session",
627  .function = show_pppoe_session_command_fn,
628 };
629 /* *INDENT-ON* */
630 
632 {
637 
638 static void
639 pppoe_show_walk_cb (BVT (clib_bihash_kv) * kvp, void *arg)
640 {
641  pppoe_show_walk_ctx_t *ctx = arg;
642  pppoe_entry_result_t result;
643  pppoe_entry_key_t key;
644 
645  if (ctx->first_entry)
646  {
647  ctx->first_entry = 0;
648  vlib_cli_output (ctx->vm,
649  "%=19s%=12s%=13s%=14s",
650  "Mac-Address", "session_id", "sw_if_index",
651  "session_index");
652  }
653 
654  key.raw = kvp->key;
655  result.raw = kvp->value;
656 
657  vlib_cli_output (ctx->vm,
658  "%=19U%=12d%=13d%=14d",
660  clib_net_to_host_u16 (key.fields.session_id),
661  result.fields.sw_if_index == ~0
662  ? -1 : result.fields.sw_if_index,
663  result.fields.session_index == ~0
664  ? -1 : result.fields.session_index);
665  ctx->total_entries++;
666 }
667 
668 /** Display the contents of the PPPoE Fib. */
669 static clib_error_t *
671  unformat_input_t * input, vlib_cli_command_t * cmd)
672 {
673  pppoe_main_t *pem = &pppoe_main;
675  .first_entry = 1,
676  .vm = vm,
677  };
678 
680  (&pem->session_table, pppoe_show_walk_cb, &ctx);
681 
682  if (ctx.total_entries == 0)
683  vlib_cli_output (vm, "no pppoe fib entries");
684  else
685  vlib_cli_output (vm, "%lld pppoe fib entries", ctx.total_entries);
686 
687  return 0;
688 }
689 
690 /*?
691  * This command dispays the MAC Address entries of the PPPoE FIB table.
692  * Output can be filtered to just get the number of MAC Addresses or display
693  * each MAC Address.
694  *
695  * @cliexpar
696  * Example of how to display the number of MAC Address entries in the PPPoE
697  * FIB table:
698  * @cliexstart{show pppoe fib}
699  * Mac Address session_id Interface sw_if_index session_index
700  * 52:54:00:53:18:33 1 GigabitEthernet0/8/0 2 0
701  * 52:54:00:53:18:55 2 GigabitEthernet0/8/1 3 1
702  * @cliexend
703 ?*/
704 /* *INDENT-OFF* */
705 VLIB_CLI_COMMAND (show_pppoe_fib_command, static) = {
706  .path = "show pppoe fib",
707  .short_help = "show pppoe fib",
708  .function = show_pppoe_fib_command_fn,
709 };
710 /* *INDENT-ON* */
711 
712 clib_error_t *
714 {
715  pppoe_main_t *pem = &pppoe_main;
716 
717  pem->vnet_main = vnet_get_main ();
718  pem->vlib_main = vm;
719 
720  /* Create the hash table */
721  BV (clib_bihash_init) (&pem->link_table, "pppoe link table",
723 
724  BV (clib_bihash_init) (&pem->session_table, "pppoe session table",
726 
727  ethernet_register_input_type (vm, ETHERNET_TYPE_PPPOE_SESSION,
728  pppoe_input_node.index);
729 
730  ethernet_register_input_type (vm, ETHERNET_TYPE_PPPOE_DISCOVERY,
731  pppoe_cp_dispatch_node.index);
732 
733  return 0;
734 }
735 
737 
738 /* *INDENT-OFF* */
740  .version = VPP_BUILD_VER,
741  .description = "PPPoE",
742 };
743 /* *INDENT-ON* */
744 
745 /*
746  * fd.io coding-style-patch-verification: ON
747  *
748  * Local Variables:
749  * eval: (c-set-style "gnu")
750  * End:
751  */
u16 ppp_proto
Definition: pppoe.h:43
VLIB_PLUGIN_REGISTER()
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:212
vmrglw vmrglh hi
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:522
Definition: pppoe.h:112
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:469
vlib_main_t * vlib_main
Definition: pppoe.h:175
VNET_HW_INTERFACE_CLASS(pppoe_hw_class)
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
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
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
#define NULL
Definition: clib.h:57
Broadcasr Adjacency.
Definition: adj.h:85
IP unicast adjacency.
Definition: adj.h:185
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:523
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
static clib_error_t * pppoe_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: pppoe.c:77
format_function_t format_ip46_address
Definition: format.h:61
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:419
#define VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:494
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:448
struct pppoe_entry_result_t::@539::@541 fields
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:263
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:670
clib_error_t * pppoe_init(vlib_main_t *vm)
Definition: pppoe.c:713
vnet_link_t ia_link
link/ether-type 1 bytes
Definition: adj.h:206
VNET_DEVICE_CLASS(pppoe_device_class, static)
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:169
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
static ip_adjacency_t * adj_get(adj_index_t adj_index)
Get a pointer to an adjacency object from its index.
Definition: adj.h:380
memset(h->entries, 0, sizeof(h->entries[0])*entries)
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:443
unformat_function_t unformat_ip4_address
Definition: format.h:70
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
dpo_proto_t vnet_link_to_dpo_proto(vnet_link_t linkt)
Definition: dpo.c:95
u32 sw_if_index
Definition: vxlan_gbp.api:39
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:855
u8 dst_address[6]
Definition: packet.h:55
static BVT(clib_bihash)
Definition: adj_nbr.c:26
A high priority source a plugin can use.
Definition: fib_entry.h:62
Aggregrate 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:1064
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:246
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:703
static u8 * format_pppoe_header_with_length(u8 *s, va_list *args)
Definition: pppoe.c:96
Definition: fib_entry.h:275
unformat_function_t unformat_line_input
Definition: format.h:282
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:168
#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:464
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:269
vlib_node_registration_t ip4_input_node
Global ip4 input node.
Definition: ip4_input.c:317
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
static uword dummy_interface_tx(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
Definition: pppoe.c:69
vlib_node_registration_t ip6_input_node
(constructor) VLIB_REGISTER_NODE (ip6_input_node)
Definition: ip6_input.c:228
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
struct pppoe_entry_key_t::@535::@537 fields
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:205
vlib_main_t * vm
Definition: pppoe.c:633
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:274
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:720
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:854
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
u32 flags
Definition: vhost_user.h:115
unformat_function_t unformat_ip6_address
Definition: format.h:91
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P (general version).
Definition: pool.h:188
pppoe_main_t pppoe_main
Definition: pppoe.c:38
void clib_bihash_foreach_key_value_pair(clib_bihash *h, void *callback, void *arg)
Visit active (key,value) pairs in a bi-hash table.
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:144
u16 n_vectors
Definition: node.h:401
vlib_main_t * vm
Definition: buffer.c:294
vlib_node_registration_t pppoe_input_node
(constructor) VLIB_REGISTER_NODE (pppoe_input_node)
Definition: pppoe_decap.c:401
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:436
#define PPPOE_NUM_BUCKETS
Definition: pppoe.h:105
#define clib_warning(format, args...)
Definition: error.h:59
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:506
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
#define clib_memcpy(a, b, c)
Definition: string.h:75
static void vnet_interface_counter_unlock(vnet_interface_main_t *im)
Definition: interface.h:880
u8 * format_pppoe_session(u8 *s, va_list *args)
Definition: pppoe.c:41
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:136
pppoe_session_t * sessions
Definition: pppoe.h:154
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
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
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:872
uword unformat_ethernet_address(unformat_input_t *input, va_list *args)
Definition: format.c:233
#define ASSERT(truth)
void adj_nbr_midchain_stack(adj_index_t adj_index, const dpo_id_t *next)
adj_nbr_midchain_stack
Definition: adj_midchain.c:571
static void pppoe_show_walk_cb(BVT(clib_bihash_kv)*kvp, void *arg)
Definition: pppoe.c:639
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:62
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:123
u8 client_mac[6]
Definition: pppoe.h:67
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:237
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:682
void ethernet_register_input_type(vlib_main_t *vm, ethernet_type_t type, u32 node_index)
Definition: node.c:1322
u32 * session_index_by_sw_if_index
Definition: pppoe.h:166
int vnet_pppoe_add_del_session(vnet_pppoe_add_del_session_args_t *a, u32 *sw_if_indexp)
Definition: pppoe.c:257
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:239
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:104
ip_lookup_next_t lookup_next_index
Next hop after ip4-lookup.
Definition: adj.h:200
u32 decap_fib_index
FIB indices - inner IP packet lookup here.
Definition: pppoe.h:64
u64 uword
Definition: types.h:112
static void unformat_free(unformat_input_t *i)
Definition: format.h:162
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:195
a point 2 point interface
Definition: interface.h:381
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:594
#define vnet_buffer(b)
Definition: buffer.h:344
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:231
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: interface.c:477
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:486
#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
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:725
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
static void pppoe_fixup(vlib_main_t *vm, ip_adjacency_t *adj, vlib_buffer_t *b0, const void *data)
Fixup the adj rewrite post encap.
Definition: pppoe.c:149
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128