FD.io VPP  v18.04-17-g3a0d853
Vector Packet Processing
sixrd.c
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1 /*
2  * sixrd.c - 6RD specific functions (RFC5969)
3  *
4  * Copyright (c) 2018 Cisco and/or its affiliates.
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 /**
19  * This code supports the following sixrd modes:
20  *
21  * 32 EA bits (Complete IPv4 address is embedded):
22  * ea_bits_len = 32
23  * IPv4 suffix is embedded:
24  * ea_bits_len = < 32
25  * No embedded address bits (1:1 mode):
26  * ea_bits_len = 0
27  */
28 
29 #include "ipip.h"
30 #include <vlibapi/api.h>
31 #include <vlibmemory/api.h>
32 #include <vnet/adj/adj.h>
33 #include <vnet/adj/adj_delegate.h>
34 #include <vnet/adj/adj_midchain.h>
35 #include <vnet/dpo/lookup_dpo.h>
36 #include <vnet/fib/fib_table.h>
37 #include <vnet/fib/ip6_fib.h>
38 #include <vnet/plugin/plugin.h>
39 
41 
42 /**
43  * Adj delegate data
44  */
45 typedef struct sixrd_adj_delegate_t_
46 {
52 
53 /**
54  * Pool of delegate structs
55  */
57 
58 /**
59  * Adj delegate registered type
60  */
62 
63 /**
64  * FIB node registered type
65  */
67 
68 static inline sixrd_adj_delegate_t *
70 {
71  if (ad == NULL)
72  return (NULL);
73  return (pool_elt_at_index (sixrd_adj_delegate_pool, ad->ad_index));
74 }
75 
76 static inline const sixrd_adj_delegate_t *
78 {
79  if (ad == NULL)
80  {
81  return (NULL);
82  }
83  return (pool_elt_at_index (sixrd_adj_delegate_pool, ad->ad_index));
84 }
85 
86 static void
88  const void *data)
89 {
91  ip6_header_t *ip6 = vlib_buffer_get_current (b0) + sizeof (ip4_header_t);
92  const ipip_tunnel_t *t = data;
93 
94  ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
95  ip4->dst_address.as_u32 =
97  ip4->checksum = ip4_header_checksum (ip4);
98 }
99 
100 static void
102  const void *data)
103 {
104  const ipip_tunnel_t *t = data;
106  ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
107  ip4->dst_address.as_u32 =
108  sixrd_get_addr_net (t, adj->sub_type.nbr.next_hop.as_u64[0]);
109  ip4->checksum = ip4_header_checksum (ip4);
110 }
111 
112 static u8 *
113 sixrd_build_rewrite (vnet_main_t * vnm, u32 sw_if_index,
114  vnet_link_t link_type, const void *dst_address)
115 {
116  u8 *rewrite = NULL;
117  ipip_tunnel_t *t;
118 
119  t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
120  if (!t)
121  return 0;
122 
123  vec_validate (rewrite, sizeof (ip4_header_t) - 1);
124  ip4_header_t *ip4 = (ip4_header_t *) rewrite;
125  ip4->ip_version_and_header_length = 0x45;
126  ip4->ttl = 64;
127  ip4->protocol = IP_PROTOCOL_IPV6;
128  /* fixup ip4 header length and checksum after-the-fact */
129  ip4->src_address.as_u32 = t->tunnel_src.ip4.as_u32;
130  ip4->dst_address.as_u32 = 0;
131  ip4->checksum = ip4_header_checksum (ip4);
132 
133  return rewrite;
134 }
135 
136 static void
137 ip6ip_tunnel_stack (adj_index_t ai, u32 fib_entry_index)
138 {
139  ip_adjacency_t *adj = adj_get (ai);
140  ipip_tunnel_t *t;
141  u32 sw_if_index = adj->rewrite_header.sw_if_index;
142 
143  t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
144  if (!t)
145  return;
146 
147  /*
148  * find the adjacency that is contributed by the FIB entry
149  * that this tunnel resolves via, and use it as the next adj
150  * in the midchain
151  */
154  {
157  (fib_entry_index));
158  }
159  else
160  {
162  }
163 }
164 
165 static void
167 {
168  dpo_id_t dpo = DPO_INVALID;
169  ip_adjacency_t *adj = adj_get (ai);
170  u32 sw_if_index = adj->rewrite_header.sw_if_index;
171 
173  if (!t)
174  return;
175 
179  adj_nbr_midchain_stack (ai, &dpo);
180 }
181 
182 const static ip46_address_t sixrd_special_nh = {
183  .ip6 = {
184  .as_u64 = {
185  [0] = 0xffffffffffffffff,
186  [1] = 0xffffffffffffffff,
187  },
188  },
189 };
190 
191 static void
192 sixrd_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
193 {
194  ip_adjacency_t *adj = adj_get (ai);
196 
197  /* Not our tunnel */
198  if (!t)
199  return;
200  if (!memcmp (&sixrd_special_nh, &adj->sub_type.nbr.next_hop,
201  sizeof (sixrd_special_nh)))
202  {
204  sixrd_build_rewrite (vnm, sw_if_index,
206  (ai), NULL));
207  sixrd_tunnel_stack (ai, t->fib_index);
208  }
209  else
210  {
211  sixrd_adj_delegate_t *sixrd_ad;
212  ip4_address_t da4;
213 
214  da4.as_u32 =
215  sixrd_get_addr_net (t, adj->sub_type.nbr.next_hop.as_u64[0]);
216 
217  fib_prefix_t pfx = {
219  .fp_len = 32,
220  .fp_addr = {
221  .ip4 = da4,
222  }
223  ,
224  };
225 
227  sixrd_build_rewrite (vnm, sw_if_index,
229  (ai), NULL));
230 
231  sixrd_ad =
233  if (sixrd_ad == NULL)
234  {
235  pool_get (sixrd_adj_delegate_pool, sixrd_ad);
237  sixrd_ad->adj_index = ai;
238  sixrd_ad->sixrd_fib_entry_index =
241  sixrd_ad->sixrd_sibling =
244  sixrd_ad - sixrd_adj_delegate_pool);
245 
247  sixrd_ad - sixrd_adj_delegate_pool);
248 
250  }
251  }
252 }
253 
254 clib_error_t *
256 {
257  /* Always up */
258  vnet_hw_interface_set_flags (vnm, hw_if_index,
260  return /* no error */ 0;
261 }
262 
263 /* *INDENT-OFF* */
264 VNET_HW_INTERFACE_CLASS(sixrd_hw_interface_class) = {
265  .name = "ip6ip-6rd",
266  .build_rewrite = sixrd_build_rewrite,
267  .update_adjacency = sixrd_update_adj,
268 };
269 
270 VNET_DEVICE_CLASS(sixrd_device_class) = {
271  .name = "ip6ip-6rd",
272  .admin_up_down_function = sixrd_interface_admin_up_down,
273 #ifdef SOON
274  .clear counter = 0;
275 #endif
276 }
277 ;
278 /* *INDENT-ON* */
279 
280 int
281 sixrd_add_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
282  ip4_address_t * ip4_prefix, u8 ip4_prefix_len,
283  ip4_address_t * ip4_src, bool security_check,
284  u32 fib_index, u32 * sw_if_index)
285 {
286  ipip_main_t *gm = &ipip_main;
287  ipip_tunnel_t *t;
288 
289  if (fib_index == ~0)
290  return VNET_API_ERROR_NO_SUCH_FIB;
291 
292  if ((ip6_prefix_len + 32 - ip4_prefix_len) > 64)
293  return VNET_API_ERROR_INVALID_VALUE;
294 
295  /* Tunnel already configured */
296  ip46_address_t src = ip46_address_initializer, dst =
298  ip_set (&src, ip4_src, true);
300  .fib_index = fib_index,
301  .src = src,
302  .dst = dst
303  };
304 
305  t = ipip_tunnel_db_find (&key);
306  if (t)
307  return VNET_API_ERROR_IF_ALREADY_EXISTS;
308 
309  /* Get tunnel index */
311  memset (t, 0, sizeof (*t));
312  u32 t_idx = t - gm->tunnels; /* tunnel index (or instance) */
313 
314  /* Init tunnel struct */
315  t->mode = IPIP_MODE_6RD;
316  t->sixrd.ip4_prefix.as_u32 = ip4_prefix->as_u32;
317  t->sixrd.ip4_prefix_len = ip4_prefix_len;
318  t->sixrd.ip6_prefix = *ip6_prefix;
319  t->sixrd.ip6_prefix_len = ip6_prefix_len;
320  t->tunnel_src = src;
321  t->sixrd.security_check = security_check;
322  t->sixrd.shift =
323  (ip4_prefix_len < 32) ? 64 - ip6_prefix_len - (32 - ip4_prefix_len) : 0;
324 
325  /* Create interface */
326  u32 hw_if_index =
327  vnet_register_interface (vnet_get_main (), sixrd_device_class.index,
328  t_idx,
329  sixrd_hw_interface_class.index, t_idx);
330 
331  /* Default the interface to up and enable IPv6 (payload) */
333  vnet_get_hw_interface (vnet_get_main (), hw_if_index);
334  t->hw_if_index = hw_if_index;
335  t->fib_index = fib_index;
336  t->sw_if_index = hi->sw_if_index;
337  t->dev_instance = t_idx;
338  t->user_instance = t_idx;
339 
341 
342  ipip_tunnel_db_add (t, &key);
343 
345  ~0);
346  gm->tunnel_index_by_sw_if_index[hi->sw_if_index] = t_idx;
347 
353 
354  /* Create IPv6 route/adjacency */
355  fib_prefix_t pfx6 = {
357  .fp_len = t->sixrd.ip6_prefix_len,
358  .fp_addr = {
359  .ip6 = t->sixrd.ip6_prefix,
360  }
361  ,
362  };
363 
366  &sixrd_special_nh, hi->sw_if_index, ~0, 1,
368 
369  *sw_if_index = hi->sw_if_index;
370 
371  if (!gm->ip4_protocol_registered)
372  {
374  vlib_get_node_by_name (gm->vlib_main, (u8 *) "ipip4-input");
375  ASSERT (ipip4_input);
376  ip4_register_protocol (IP_PROTOCOL_IPV6, ipip4_input->index);
377  }
378  return 0;
379 }
380 
381 /*
382  * sixrd_del_tunnel
383  */
384 int
385 sixrd_del_tunnel (u32 sw_if_index)
386 {
387  ipip_main_t *gm = &ipip_main;
389 
390  if (!t)
391  {
392  clib_warning ("SIXRD tunnel delete: tunnel does not exist: %d",
393  sw_if_index);
394  return -1;
395  }
396 
397  fib_prefix_t pfx6 = {
399  .fp_len = t->sixrd.ip6_prefix_len,
400  .fp_addr = {
401  .ip6 = t->sixrd.ip6_prefix,
402  }
403  ,
404  };
407  0 /* down */ );
410 
413  pool_put (gm->tunnels, t);
414 
415  return 0;
416 }
417 
418 static void
420 {
421  sixrd_adj_delegate_t *sixrd_ad;
422 
423  sixrd_ad = sixrd_adj_from_base (aed);
425  sixrd_ad->sixrd_sibling);
427  FIB_SOURCE_RR);
428  pool_put (sixrd_adj_delegate_pool, sixrd_ad);
429 }
430 
431 static u8 *
433 {
434  const sixrd_adj_delegate_t *sixrd_ad;
435 
436  sixrd_ad = sixrd_adj_from_const_base (aed);
437  s = format (s, "SIXRD:[fib-entry:%d]", sixrd_ad->sixrd_fib_entry_index);
438 
439  return (s);
440 }
441 
442 static void
444 {
445  /* top of the dependency tree, locks not managed here. */
446 }
447 
448 static sixrd_adj_delegate_t *
450 {
451  return ((sixrd_adj_delegate_t *) (((char *) node) -
453  sixrd_node)));
454 }
455 
459 {
460  sixrd_adj_delegate_t *sixrd_ad;
461 
462  sixrd_ad = sixrd_adj_delegate_from_fib_node (node);
463  ip6ip_tunnel_stack (sixrd_ad->adj_index, sixrd_ad->sixrd_fib_entry_index);
464 
466 }
467 
468 /**
469  * Function definition to get a FIB node from its index
470  */
471 static fib_node_t *
473 {
474  sixrd_adj_delegate_t *sixrd_ad;
475 
476  sixrd_ad = pool_elt_at_index (sixrd_adj_delegate_pool, index);
477 
478  return (&sixrd_ad->sixrd_node);
479 }
480 
481 /**
482  * VFT registered with the adjacency delegate
483  */
484 const static adj_delegate_vft_t sixrd_adj_delegate_vft = {
486  .adv_format = sixrd_adj_delegate_format,
487 };
488 
489 /**
490  * VFT registered with the FIB node for the adj delegate
491  */
492 const static fib_node_vft_t sixrd_fib_node_vft = {
494  .fnv_last_lock = sixrd_fib_node_last_lock_gone,
495  .fnv_back_walk = sixrd_fib_node_back_walk_notify,
496 };
497 
498 static clib_error_t *
500 {
501  clib_error_t *error = 0;
502 
503  /* Make sure the IPIP tunnel subsystem is initialised */
504  error = vlib_call_init_function (vm, ipip_init);
505 
507  adj_delegate_register_new_type (&sixrd_adj_delegate_vft);
508  sixrd_fib_node_type = fib_node_register_new_type (&sixrd_fib_node_vft);
509 
510  return error;
511 }
512 
514 
515 /*
516  * fd.io coding-style-patch-verification: ON
517  *
518  * Local Variables:
519  * eval: (c-set-style "gnu")
520  * End:
521  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:434
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:197
vmrglw vmrglh hi
void ipip_tunnel_db_remove(ipip_tunnel_t *t)
Definition: ipip.c:335
Recursive resolution source.
Definition: fib_entry.h:121
static sixrd_adj_delegate_t * sixrd_adj_delegate_from_fib_node(fib_node_t *node)
Definition: sixrd.c:449
clib_error_t * sixrd_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: sixrd.c:255
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:554
adj_delegate_adj_deleted_t adv_adj_deleted
Definition: adj_delegate.h:79
ip4_address_t src_address
Definition: ip4_packet.h:164
A representation of a IPIP tunnel.
Definition: ipip.h:69
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
ip46_address_t tunnel_src
Definition: ipip.h:77
u32 fib_entry_child_add(fib_node_index_t fib_entry_index, fib_node_type_t child_type, fib_node_index_t child_index)
Definition: fib_entry.c:527
u64 as_u64[2]
Definition: ip6_packet.h:51
static void sixrd_fib_node_last_lock_gone(fib_node_t *node)
Definition: sixrd.c:443
static u8 * sixrd_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Definition: sixrd.c:113
void ip_set(ip46_address_t *dst, void *src, u8 is_ip4)
Definition: ip.c:90
vnet_link_t adj_get_link_type(adj_index_t ai)
Return the link type of the adjacency.
Definition: adj.c:403
#define NULL
Definition: clib.h:55
u32 index
Definition: node.h:237
IP unicast adjacency.
Definition: adj.h:175
enum fib_node_back_walk_rc_t_ fib_node_back_walk_rc_t
Return code from a back walk function.
const dpo_id_t * fib_entry_contribute_ip_forwarding(fib_node_index_t fib_entry_index)
Definition: fib_entry.c:478
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
fib_node_t sixrd_node
Definition: sixrd.c:48
From the CLI.
Definition: fib_entry.h:74
void fib_entry_child_remove(fib_node_index_t fib_entry_index, u32 sibling_index)
Definition: fib_entry.c:538
int sixrd_add_tunnel(ip6_address_t *ip6_prefix, u8 ip6_prefix_len, ip4_address_t *ip4_prefix, u8 ip4_prefix_len, ip4_address_t *ip4_src, bool security_check, u32 fib_index, u32 *sw_if_index)
Definition: sixrd.c:281
struct ip_adjacency_t_::@43::@44 nbr
IP_LOOKUP_NEXT_ARP/IP_LOOKUP_NEXT_REWRITE.
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:62
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
static fib_node_t * sixrd_fib_node_get(fib_node_index_t index)
Function definition to get a FIB node from its index.
Definition: sixrd.c:472
VNET_HW_INTERFACE_CLASS(sixrd_hw_interface_class)
#define VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:390
void ip4_register_protocol(u32 protocol, u32 node_index)
Definition: ip4_forward.c:1508
Definition: fib_entry.h:272
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:107
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:227
u32 hw_if_index
Definition: ipip.h:80
bool ip4_protocol_registered
Definition: ipip.h:119
static void ip6ip_tunnel_stack(adj_index_t ai, u32 fib_entry_index)
Definition: sixrd.c:137
fib_node_type_t fib_node_register_new_type(const fib_node_vft_t *vft)
Create a new FIB node type and Register the function table for it.
Definition: fib_node.c:80
VNET_DEVICE_CLASS(sixrd_device_class)
static const ip46_address_t sixrd_special_nh
Definition: sixrd.c:182
static_always_inline u32 sixrd_get_addr_net(const ipip_tunnel_t *t, u64 dal)
Definition: ipip.h:131
union ip_adjacency_t_::@43 sub_type
fib_node_index_t fib_table_entry_update_one_path(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)
Update the entry to have just one path.
Definition: fib_table.c:764
static ip_adjacency_t * adj_get(adj_index_t adj_index)
Get a pointer to an adjacency object from its index.
Definition: adj.h:376
static void sixrd_fixup(vlib_main_t *vm, ip_adjacency_t *adj, vlib_buffer_t *b0, const void *data)
Definition: sixrd.c:87
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:111
static uword ipip4_input(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
Definition: node.c:204
u32 user_instance
Definition: ipip.h:83
void fib_table_entry_special_remove(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source)
Remove a &#39;special&#39; entry from the FIB.
Definition: fib_table.c:399
static const sixrd_adj_delegate_t * sixrd_adj_from_const_base(const adj_delegate_t *ad)
Definition: sixrd.c:77
ip4_address_t dst_address
Definition: ip4_packet.h:164
Aggregrate type for a prefix.
Definition: fib_types.h:188
u32 * tunnel_index_by_sw_if_index
Definition: ipip.h:109
fib_node_index_t sixrd_fib_entry_index
Definition: sixrd.c:49
Adj delegate.
Definition: adj_delegate.h:44
ipip_transport_t transport
Definition: ipip.h:54
#define vlib_call_init_function(vm, x)
Definition: init.h:162
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:705
static sixrd_adj_delegate_t * sixrd_adj_delegate_pool
Pool of delegate structs.
Definition: sixrd.c:56
static u8 * sixrd_adj_delegate_format(const adj_delegate_t *aed, u8 *s)
Definition: sixrd.c:432
Definition: fib_entry.h:270
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
static fib_node_back_walk_rc_t sixrd_fib_node_back_walk_notify(fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
Definition: sixrd.c:457
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:461
int adj_delegate_add(ip_adjacency_t *adj, adj_delegate_type_t adt, index_t adi)
Add a delegate to an adjacency.
Definition: adj_delegate.c:107
void ipip_tunnel_db_add(ipip_tunnel_t *t, ipip_tunnel_key_t *key)
Definition: ipip.c:325
static uword vnet_hw_interface_get_flags(vnet_main_t *vnm, u32 hw_if_index)
ipip_tunnel_t * ipip_tunnel_db_find(ipip_tunnel_key_t *key)
Definition: ipip.c:301
ipip_tunnel_t * ipip_tunnel_db_find_by_sw_if_index(u32 sw_if_index)
Definition: ipip.c:313
enum adj_delegate_type_t_ adj_delegate_type_t
A Delagate is a means to implement the Delagation design pattern; the extension of an object&#39;s functi...
ipip_tunnel_t * tunnels
Definition: ipip.h:107
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:209
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:273
Adj delegate data.
Definition: sixrd.c:45
static adj_delegate_type_t sixrd_adj_delegate_type
Adj delegate registered type.
Definition: sixrd.c:61
void lookup_dpo_add_or_lock_w_fib_index(fib_node_index_t fib_index, dpo_proto_t proto, lookup_cast_t cast, lookup_input_t input, lookup_table_t table_config, dpo_id_t *dpo)
Definition: lookup_dpo.c:127
An node in the FIB graph.
Definition: fib_node.h:286
#define ip46_address_initializer
Definition: ip6_packet.h:84
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P (general version).
Definition: pool.h:188
fib_node_index_t fib_table_entry_special_add(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, fib_entry_flag_t flags)
Add a &#39;special&#39; entry to the FIB.
Definition: fib_table.c:380
ipip_main_t ipip_main
Definition: ipip.c:28
vlib_main_t * vm
Definition: buffer.c:294
void fib_table_entry_delete_index(fib_node_index_t fib_entry_index, fib_source_t source)
Delete a FIB entry.
Definition: fib_table.c:869
index_t ad_index
The index passed by the provider to identify its delegate instance.
Definition: adj_delegate.h:60
#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
fib_node_get_t fnv_get
Definition: fib_node.h:274
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
vlib_node_t * vlib_get_node_by_name(vlib_main_t *vm, u8 *name)
Definition: node.c:45
static void ip6ip_fixup(vlib_main_t *vm, ip_adjacency_t *adj, vlib_buffer_t *b0, const void *data)
Definition: sixrd.c:101
struct ipip_tunnel_t::@225::@228 sixrd
Context passed between object during a back walk.
Definition: fib_node.h:199
u32 fib_index
Definition: ipip.h:79
#define VNET_SW_INTERFACE_FLAG_ADMIN_UP
Definition: interface.h:588
u32 max_l3_packet_bytes[VLIB_N_RX_TX]
Definition: interface.h:480
#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:570
unsigned int u32
Definition: types.h:88
adj_delegate_type_t adj_delegate_register_new_type(const adj_delegate_vft_t *vft)
adj_delegate_register_new_type
Definition: adj_delegate.c:190
adj_delegate_t * adj_delegate_get(const ip_adjacency_t *adj, adj_delegate_type_t type)
Get a delegate from an adjacency.
Definition: adj_delegate.c:58
long ctx[MAX_CONNS]
Definition: main.c:126
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
struct sixrd_adj_delegate_t_ sixrd_adj_delegate_t
Adj delegate data.
vlib_node_registration_t ip4_sixrd_node
This code supports the following sixrd modes:
static void sixrd_update_adj(vnet_main_t *vnm, u32 sw_if_index, adj_index_t ai)
Definition: sixrd.c:192
static clib_error_t * sixrd_init(vlib_main_t *vm)
Definition: sixrd.c:499
void adj_nbr_midchain_unstack(adj_index_t adj_index)
adj_nbr_midchain_unstack
Definition: adj_midchain.c:548
static fib_node_type_t sixrd_fib_node_type
FIB node registered type.
Definition: sixrd.c:66
static sixrd_adj_delegate_t * sixrd_adj_from_base(adj_delegate_t *ad)
Definition: sixrd.c:69
u32 sw_if_index
Definition: ipip.h:81
void vnet_delete_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:917
struct _vlib_node_registration vlib_node_registration_t
Definition: defs.h:47
unsigned char u8
Definition: types.h:56
ipip_mode_t mode
Definition: ipip.h:74
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:195
static clib_error_t * ipip_init(vlib_main_t *vm)
Definition: ipip.c:544
An ADJ delegate virtual function table.
Definition: adj_delegate.h:77
static void sixrd_tunnel_stack(adj_index_t ai, u32 fib_index)
Definition: sixrd.c:166
static void sixrd_adj_delegate_adj_deleted(adj_delegate_t *aed)
Definition: sixrd.c:419
A FIB graph nodes virtual function table.
Definition: fib_node.h:273
u32 dev_instance
Definition: ipip.h:82
enum fib_node_type_t_ fib_node_type_t
The types of nodes in a FIB graph.
int sixrd_del_tunnel(u32 sw_if_index)
Definition: sixrd.c:385
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: interface.c:562
u8 ip_version_and_header_length
Definition: ip4_packet.h:132
u32 flags
Definition: vhost-user.h:77
#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:483
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
vlib_main_t * vlib_main
Definition: ipip.h:113
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:239
void ip6_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip6_forward.c:141
Definition: defs.h:46
ip6_address_t dst_address
Definition: ip6_packet.h:342