FD.io VPP  v17.07.01-10-g3be13f0
Vector Packet Processing
ip6.h
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1 /*
2  * Copyright (c) 2016 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  * ip/ip6.h: ip6 main include file
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #ifndef included_ip_ip6_h
41 #define included_ip_ip6_h
42 
43 #include <vlib/mc.h>
44 #include <vlib/buffer.h>
45 #include <vnet/ethernet/packet.h>
46 #include <vnet/ip/ip6_packet.h>
48 #include <vnet/ip/lookup.h>
49 #include <stdbool.h>
50 #include <vppinfra/bihash_24_8.h>
52 #include <vnet/util/radix.h>
53 
54 /*
55  * Default size of the ip6 fib hash table
56  */
57 #define IP6_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
58 #define IP6_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
59 
60 typedef struct
61 {
66 
67 typedef struct
68 {
69  /* Table ID (hash key) for this FIB. */
71 
72  /* Index into FIB vector. */
74 } ip6_fib_t;
75 
76 typedef struct ip6_mfib_t
77 {
78  /* Table ID (hash key) for this FIB. */
80 
81  /* Index into FIB vector. */
83 
84  /*
85  * Pointer to the top of a radix tree.
86  * This cannot be realloc'd, hence it cannot be inlined with this table
87  */
89 } ip6_mfib_t;
90 
91 struct ip6_main_t;
92 
94  (struct ip6_main_t * im,
95  uword opaque,
96  u32 sw_if_index,
97  ip6_address_t * address,
98  u32 address_length, u32 if_address_index, u32 is_del);
99 
100 typedef struct
101 {
105 
106 /**
107  * Enumeration of the FIB table instance types
108  */
110 {
111  /**
112  * This table stores the routes that are used to forward traffic.
113  * The key is the prefix, the result the adjacnecy to forward on.
114  */
116  /**
117  * The table that stores ALL routes learned by the DP.
118  * Some of these routes may not be ready to install in forwarding
119  * at a given time.
120  * The key in this table is the prefix, the result is the fib_entry_t
121  */
124 
125 #define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1)
126 
127 /**
128  * A represenation of a single IP6 table
129  */
131 {
132  /* The hash table */
133  BVT (clib_bihash) ip6_hash;
134 
135  /* bitmap / refcounts / vector of mask widths to search */
138  i32 dst_address_length_refcounts[129];
140 
141 typedef struct ip6_main_t
142 {
143  /**
144  * The two FIB tables; fwding and non-fwding
145  */
147 
149 
150  /* Pool of FIBs. */
152 
153  /* Pool of V6 FIBs. */
155 
156  /** Vector of MFIBs. */
158 
159  /* Network byte orders subnet mask for each prefix length */
160  ip6_address_t fib_masks[129];
161 
162  /* Table index indexed by software interface. */
164 
165  /** Table index indexed by software interface. */
167 
168  /* IP6 enabled count by software interface */
170 
171  /* Hash table mapping table id to fib index.
172  ID space is not necessarily dense; index space is dense. */
174 
175  /** Hash table mapping table id to multicast fib index.
176  ID space is not necessarily dense; index space is dense. */
178 
179  /* Hash table mapping interface rewrite adjacency index by sw if index. */
181 
182  /* Functions to call when interface address changes. */
185 
186  /* Template used to generate IP6 neighbor solicitation packets. */
188 
189  /* ip6 lookup table config parameters */
192 
193  /* Seed for Jenkins hash used to compute ip6 flow hash. */
195 
196  struct
197  {
198  /* TTL to use for host generated packets. */
200 
201  u8 pad[3];
202  } host_config;
203 
204  /* HBH processing enabled? */
206 } ip6_main_t;
207 
208 /* Global ip6 main structure. */
209 extern ip6_main_t ip6_main;
210 
211 /* Global ip6 input node. Errors get attached to ip6 input node. */
219 
222  const ip6_address_t * key,
223  const ip6_address_t * dest, uword dest_length)
224 {
225  int i;
226  for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
227  {
228  if ((key->as_uword[i] ^ dest->as_uword[i]) & im->
229  fib_masks[dest_length].as_uword[i])
230  return 0;
231  }
232  return 1;
233 }
234 
237  ip6_address_t * key,
239 {
241  return ip6_destination_matches_route (im, key, a, ia->address_length);
242 }
243 
244 /* As above but allows for unaligned destinations (e.g. works right from IP header of packet). */
247  ip6_address_t * key,
248  ip6_address_t * dest,
249  uword dest_length)
250 {
251  int i;
252  for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
253  {
254  if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i])
255  & im->fib_masks[dest_length].as_uword[i])
256  return 0;
257  }
258  return 1;
259 }
260 
261 always_inline int
263  u32 sw_if_index, ip6_address_t * src)
264 {
265  u32 if_add_index = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
266  if (PREDICT_TRUE (if_add_index != ~0))
267  {
268  ip_interface_address_t *if_add =
269  pool_elt_at_index (lm->if_address_pool, if_add_index);
270  ip6_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
271  *src = *if_ip;
272  return (0);
273  }
274  else
275  {
276  src->as_u64[0] = 0;
277  src->as_u64[1] = 0;
278  }
279  return (!0);
280 }
281 
282 /* Find interface address which matches destination. */
285  ip6_address_t * dst,
286  u32 sw_if_index,
288  result_ia)
289 {
290  ip_lookup_main_t *lm = &im->lookup_main;
292  ip6_address_t *result = 0;
293 
294  /* *INDENT-OFF* */
295  foreach_ip_interface_address (lm, ia, sw_if_index,
296  1 /* honor unnumbered */,
297  ({
299  if (ip6_destination_matches_route (im, dst, a, ia->address_length))
300  {
301  result = a;
302  break;
303  }
304  }));
305  /* *INDENT-ON* */
306  if (result_ia)
307  *result_ia = result ? ia : 0;
308  return result;
309 }
310 
312  u32 sw_if_index,
313  ip6_address_t * address,
314  u32 address_length, u32 is_del);
315 void ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
316 
317 /**
318  * @brie get first IPv6 interface address
319  */
321 
323 
325  u32 sw_if_index);
326 
327 uword
329  u16 dst_port, u32 next_node_index);
330 
332  ip6_header_t * ip0,
333  int *bogus_lengthp);
334 
335 void ip6_register_protocol (u32 protocol, u32 node_index);
336 
338 
340  u32 sw_if_index, u32 ai);
341 
342 
343 void
345  u8 * mac);
346 
347 void
349  ip6_address_t * ip);
350 
352  flow_hash_config_t flow_hash_config);
353 
354 clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
355 
357 
358 int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index);
359 
361  u32 sw_if_index,
362  ip6_address_t * address);
363 
365  void *data_callback,
366  u32 pid,
367  void *address_arg,
368  uword node_index,
369  uword type_opaque,
370  uword data, int is_add);
371 
372 int vnet_ip6_nd_term (vlib_main_t * vm,
373  vlib_node_runtime_t * node,
374  vlib_buffer_t * p0,
375  ethernet_header_t * eth,
376  ip6_header_t * ip, u32 sw_if_index, u16 bd_index);
377 
379 
380 u8 *format_ip6_forward_next_trace (u8 * s, va_list * args);
381 
383 
384 int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
385  u32 table_index);
387 
388 /* Compute flow hash. We'll use it to select which Sponge to use for this
389  flow. And other things. */
392  flow_hash_config_t flow_hash_config)
393 {
394  tcp_header_t *tcp;
395  u64 a, b, c;
396  u64 t1, t2;
397  uword is_tcp_udp = 0;
398  u8 protocol = ip->protocol;
399 
400  if (PREDICT_TRUE
401  ((ip->protocol == IP_PROTOCOL_TCP)
402  || (ip->protocol == IP_PROTOCOL_UDP)))
403  {
404  is_tcp_udp = 1;
405  tcp = (void *) (ip + 1);
406  }
407  else if (ip->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
408  {
410  if ((hbh->protocol == IP_PROTOCOL_TCP) ||
411  (hbh->protocol == IP_PROTOCOL_UDP))
412  {
413  is_tcp_udp = 1;
414  tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
415  }
416  protocol = hbh->protocol;
417  }
418 
419  t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
420  t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0;
421 
422  t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]);
423  t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0;
424 
425  a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1;
426  b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2;
427  b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? protocol : 0;
428 
429  t1 = is_tcp_udp ? tcp->src : 0;
430  t2 = is_tcp_udp ? tcp->dst : 0;
431 
432  t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0;
433  t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0;
434 
435  c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
436  ((t1 << 16) | t2) : ((t2 << 16) | t1);
437 
438  hash_mix64 (a, b, c);
439  return (u32) c;
440 }
441 
442 /* ip6_locate_header
443  *
444  * This function is to search for the header specified by the protocol number
445  * in find_hdr_type.
446  * This is used to locate a specific IPv6 extension header
447  * or to find transport layer header.
448  * 1. If the find_hdr_type < 0 then it finds and returns the protocol number and
449  * offset stored in *offset of the transport or ESP header in the chain if
450  * found.
451  * 2. If a header with find_hdr_type > 0 protocol number is found then the
452  * offset is stored in *offset and protocol number of the header is
453  * returned.
454  * 3. If find_hdr_type is not found or packet is malformed or
455  * it is a non-first fragment -1 is returned.
456  */
457 always_inline int
459  ip6_header_t * ip0, int find_hdr_type, u32 * offset)
460 {
461  u8 next_proto = ip0->protocol;
462  u8 *next_header;
463  u8 done = 0;
464  u32 cur_offset;
465  u8 *temp_nxthdr = 0;
466  u32 exthdr_len = 0;
467 
468  next_header = ip6_next_header (ip0);
469  cur_offset = sizeof (ip6_header_t);
470  while (1)
471  {
472  done = (next_proto == find_hdr_type);
473  if (PREDICT_FALSE
474  (next_header >=
475  (u8 *) vlib_buffer_get_current (p0) + p0->current_length))
476  {
477  //A malicious packet could set an extension header with a too big size
478  return (-1);
479  }
480  if (done)
481  break;
482  if ((!ip6_ext_hdr (next_proto)) || next_proto == IP_PROTOCOL_IP6_NONXT)
483  {
484  if (find_hdr_type < 0)
485  break;
486  return -1;
487  }
488  if (next_proto == IP_PROTOCOL_IPV6_FRAGMENTATION)
489  {
490  ip6_frag_hdr_t *frag_hdr = (ip6_frag_hdr_t *) next_header;
491  u16 frag_off = ip6_frag_hdr_offset (frag_hdr);
492  /* Non first fragment return -1 */
493  if (frag_off)
494  return (-1);
495  exthdr_len = sizeof (ip6_frag_hdr_t);
496  temp_nxthdr = next_header + exthdr_len;
497  }
498  else if (next_proto == IP_PROTOCOL_IPSEC_AH)
499  {
500  exthdr_len =
501  ip6_ext_authhdr_len (((ip6_ext_header_t *) next_header));
502  temp_nxthdr = next_header + exthdr_len;
503  }
504  else
505  {
506  exthdr_len =
507  ip6_ext_header_len (((ip6_ext_header_t *) next_header));
508  temp_nxthdr = next_header + exthdr_len;
509  }
510  next_proto = ((ip6_ext_header_t *) next_header)->next_hdr;
511  next_header = temp_nxthdr;
512  cur_offset += exthdr_len;
513  }
514 
515  *offset = cur_offset;
516  return (next_proto);
517 }
518 
519 u8 *format_ip6_hop_by_hop_ext_hdr (u8 * s, va_list * args);
520 /*
521  * Hop-by-Hop handling
522  */
523 typedef struct
524 {
525  /* Array of function pointers to HBH option handling routines */
526  int (*options[256]) (vlib_buffer_t * b, ip6_header_t * ip,
528  u8 *(*trace[256]) (u8 * s, ip6_hop_by_hop_option_t * opt);
531 
533 
534 int ip6_hbh_register_option (u8 option,
535  int options (vlib_buffer_t * b,
536  ip6_header_t * ip,
538  u8 * trace (u8 * s,
539  ip6_hop_by_hop_option_t * opt));
540 int ip6_hbh_unregister_option (u8 option);
541 void ip6_hbh_set_next_override (uword next);
542 
543 /**
544  * Push IPv6 header to buffer
545  *
546  * @param vm - vlib_main
547  * @param b - buffer to write the header to
548  * @param src - source IP
549  * @param dst - destination IP
550  * @param prot - payload proto
551  *
552  * @return - pointer to start of IP header
553  */
554 always_inline void *
556  ip6_address_t * src, ip6_address_t * dst, int proto)
557 {
558  ip6_header_t *ip6h;
559  u16 payload_length;
560 
561  /* make some room */
562  ip6h = vlib_buffer_push_uninit (b, sizeof (ip6_header_t));
563 
565  clib_host_to_net_u32 (0x6 << 28);
566 
567  /* calculate ip6 payload length */
568  payload_length = vlib_buffer_length_in_chain (vm, b);
569  payload_length -= sizeof (*ip6h);
570 
571  ip6h->payload_length = clib_host_to_net_u16 (payload_length);
572 
573  ip6h->hop_limit = 0xff;
574  ip6h->protocol = proto;
575  clib_memcpy (ip6h->src_address.as_u8, src->as_u8,
576  sizeof (ip6h->src_address));
577  clib_memcpy (ip6h->dst_address.as_u8, dst->as_u8,
578  sizeof (ip6h->src_address));
579 
580  return ip6h;
581 }
582 
583 #endif /* included_ip_ip6_h */
584 
585 /*
586  * fd.io coding-style-patch-verification: ON
587  *
588  * Local Variables:
589  * eval: (c-set-style "gnu")
590  * End:
591  */
#define foreach_ip_interface_address(lm, a, sw_if_index, loop, body)
Definition: lookup.h:179
void( ip6_add_del_interface_address_function_t)(struct ip6_main_t *im, uword opaque, u32 sw_if_index, ip6_address_t *address, u32 address_length, u32 if_address_index, u32 is_del)
Definition: ip6.h:94
vmrglw vmrglh hi
int ip6_address_compare(ip6_address_t *a1, ip6_address_t *a2)
Definition: ip46_cli.c:58
u8 pad[3]
log2 (size of the packing page block)
Definition: bihash_doc.h:61
vlib_node_registration_t ip6_midchain_node
(constructor) VLIB_REGISTER_NODE (ip6_midchain_node)
Definition: ip6_forward.c:2330
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:337
ip6_fib_t * v6_fibs
Definition: ip6.h:154
a
Definition: bitmap.h:516
void ip6_register_protocol(u32 protocol, u32 node_index)
Definition: ip6_forward.c:1589
#define IP_FLOW_HASH_SRC_PORT
Definition: lookup.h:64
static vlib_cli_command_t trace
(constructor) VLIB_CLI_COMMAND (trace)
Definition: memory_vlib.c:1173
u32 * mfib_index_by_sw_if_index
Table index indexed by software interface.
Definition: ip6.h:166
uword lookup_table_size
Definition: ip6.h:191
ip_interface_address_t * if_address_pool
Pool of addresses that are assigned to interfaces.
Definition: lookup.h:122
void ip6_hbh_set_next_override(uword next)
Definition: ip6_forward.c:2862
int vnet_set_ip6_classify_intfc(vlib_main_t *vm, u32 sw_if_index, u32 table_index)
Definition: ip6_forward.c:3368
The table that stores ALL routes learned by the DP.
Definition: ip6.h:122
#define PREDICT_TRUE(x)
Definition: clib.h:98
u32 flow_hash_seed
Definition: ip6.h:194
u8 as_u8[16]
Definition: ip6_packet.h:48
u64 as_u64[2]
Definition: ip6_packet.h:51
static ip6_address_t * ip6_interface_address_matching_destination(ip6_main_t *im, ip6_address_t *dst, u32 sw_if_index, ip_interface_address_t **result_ia)
Definition: ip6.h:284
Definitions for all things IP (v4|v6) unicast and multicast lookup related.
int vnet_add_del_ip6_nd_change_event(vnet_main_t *vnm, void *data_callback, u32 pid, void *address_arg, uword node_index, uword type_opaque, uword data, int is_add)
int ip6_hbh_register_option(u8 option, int options(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt), u8 *trace(u8 *s, ip6_hop_by_hop_option_t *opt))
Definition: ip6_forward.c:2870
#define IP_FLOW_HASH_REVERSE_SRC_DST
Definition: lookup.h:66
u8 ttl
Definition: ip6.h:199
u8 * ip_enabled_by_sw_if_index
Definition: ip6.h:169
ip6_address_t * ip6_interface_first_address(ip6_main_t *im, u32 sw_if_index)
get first IPv6 interface address
Definition: ip6_forward.c:453
vlib_node_registration_t ip6_rewrite_node
(constructor) VLIB_REGISTER_NODE (ip6_rewrite_node)
Definition: ip6_forward.c:2343
struct _vlib_node_registration vlib_node_registration_t
#define IP_FLOW_HASH_DST_PORT
Definition: lookup.h:65
struct ip6_mfib_t ip6_mfib_t
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:100
struct _tcp_header tcp_header_t
ip6_address_t src_address
Definition: ip6_packet.h:341
u8 * prefix_lengths_in_search_order
Definition: ip6.h:137
uword as_uword[16/sizeof(uword)]
Definition: ip6_packet.h:52
u32 vrf_index
Definition: ip6.h:64
vlib_node_registration_t ip6_rewrite_mcast_node
(constructor) VLIB_REGISTER_NODE (ip6_rewrite_mcast_node)
Definition: ip6_forward.c:2361
vlib_packet_template_t discover_neighbor_packet_template
Definition: ip6.h:187
vlib_node_registration_t ip6_discover_neighbor_node
(constructor) VLIB_REGISTER_NODE (ip6_discover_neighbor_node)
Definition: ip6_forward.c:1827
u8 * format_ip6_hop_by_hop_ext_hdr(u8 *s, va_list *args)
Definition: ip6_forward.c:2426
#define IP_FLOW_HASH_DST_ADDR
Definition: lookup.h:62
#define always_inline
Definition: clib.h:84
void ip6_ethernet_update_adjacency(vnet_main_t *vnm, u32 sw_if_index, u32 ai)
Definition: ip6_neighbor.c:503
static BVT(clib_bihash)
Definition: adj_nbr.c:26
ip6_hop_by_hop_main_t ip6_hop_by_hop_main
Definition: ip6_forward.c:2389
static uword ip6_destination_matches_route(const ip6_main_t *im, const ip6_address_t *key, const ip6_address_t *dest, uword dest_length)
Definition: ip6.h:221
int i32
Definition: types.h:81
int ip6_interface_enabled(vlib_main_t *vm, u32 sw_if_index)
unsigned long u64
Definition: types.h:89
uword ip6_udp_register_listener(vlib_main_t *vm, u16 dst_port, u32 next_node_index)
A represenation of a single IP6 table.
Definition: ip6.h:130
clib_error_t * ip6_probe_neighbor(vlib_main_t *vm, ip6_address_t *dst, u32 sw_if_index)
Definition: ip6_forward.c:1863
u32 lookup_table_nbuckets
Definition: ip6.h:190
int ip6_hbh_unregister_option(u8 option)
Definition: ip6_forward.c:2894
static int ip6_src_address_for_packet(ip_lookup_main_t *lm, u32 sw_if_index, ip6_address_t *src)
Definition: ip6.h:262
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:397
uword * mfib_index_by_table_id
Hash table mapping table id to multicast fib index.
Definition: ip6.h:177
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:71
vlib_node_registration_t ip6_input_node
(constructor) VLIB_REGISTER_NODE (ip6_input_node)
Definition: ip6_input.c:327
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:188
void ip6_ethernet_mac_address_from_link_local_address(u8 *mac, ip6_address_t *ip)
Definition: ip6_forward.c:3131
vlib_node_registration_t ip6_glean_node
(constructor) VLIB_REGISTER_NODE (ip6_glean_node)
Definition: ip6_forward.c:1845
static u32 ip6_compute_flow_hash(const ip6_header_t *ip, flow_hash_config_t flow_hash_config)
Definition: ip6.h:391
#define PREDICT_FALSE(x)
Definition: clib.h:97
u32 index
Definition: ip6.h:73
ip6_add_del_interface_address_callback_t * add_del_interface_address_callbacks
Definition: ip6.h:184
Definition: ip6.h:76
#define ip6_ext_authhdr_len(p)
Definition: ip6_packet.h:468
void ip6_link_local_address_from_ethernet_mac_address(ip6_address_t *ip, u8 *mac)
Definition: ip6_forward.c:3115
uword * fib_index_by_table_id
Definition: ip6.h:173
#define ip6_ext_header_len(p)
Definition: ip6_packet.h:467
void send_ip6_na(vlib_main_t *vm, vnet_hw_interface_t *hi)
ip6_address_t fib_masks[129]
Definition: ip6.h:160
#define hash_mix64(a0, b0, c0)
Definition: hash.h:507
svmdb_client_t * c
Definition: ip6.h:67
struct radix_node_head * rhead
Definition: ip6.h:88
This table stores the routes that are used to forward traffic.
Definition: ip6.h:115
#define clib_memcpy(a, b, c)
Definition: string.h:69
u32 dst_address_length
Definition: ip6.h:63
u32 index
Definition: ip6.h:82
#define ARRAY_LEN(x)
Definition: clib.h:59
clib_error_t * enable_ip6_interface(vlib_main_t *vm, u32 sw_if_index)
u8 hbh_enabled
Definition: ip6.h:205
static void * ip6_next_header(ip6_header_t *i)
Definition: ip6_packet.h:351
static u8 ip6_ext_hdr(u8 nexthdr)
Definition: ip6_packet.h:455
ip6_address_t addr
Definition: ip6.h:62
u32 * if_address_pool_index_by_sw_if_index
Head of doubly linked list of interface addresses for each software interface.
Definition: lookup.h:129
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:1195
vlib_node_registration_t ip6_lookup_node
(constructor) VLIB_REGISTER_NODE (ip6_lookup_node)
Definition: ip6_forward.c:733
#define ip6_frag_hdr_offset(hdr)
Definition: ip6_packet.h:519
#define IP6_FIB_NUM_TABLES
Definition: ip6.h:125
vlib buffer structure definition and a few select access methods.
#define IP_FLOW_HASH_SRC_ADDR
Flow hash configuration.
Definition: lookup.h:61
unsigned int u32
Definition: types.h:88
ip6_fib_table_instance_type_t_
Enumeration of the FIB table instance types.
Definition: ip6.h:109
serialize_function_t serialize_vnet_ip6_main
Definition: ip6.h:337
ip6_main_t ip6_main
Definition: ip6_forward.c:2926
ip_lookup_main_t lookup_main
Definition: ip6.h:148
u32 table_id
Definition: ip6.h:79
struct ip6_main_t ip6_main_t
struct mfib_table_t_ * mfibs
Vector of MFIBs.
Definition: ip6.h:157
u32 flow_hash_config_t
A flow hash configuration is a mask of the flow hash options.
Definition: lookup.h:82
int vnet_set_ip6_flow_hash(u32 table_id, flow_hash_config_t flow_hash_config)
Definition: ip6_forward.c:3183
static int ip6_locate_header(vlib_buffer_t *p0, ip6_header_t *ip0, int find_hdr_type, u32 *offset)
Definition: ip6.h:458
u64 uword
Definition: types.h:112
static uword ip6_destination_matches_interface(ip6_main_t *im, ip6_address_t *key, ip_interface_address_t *ia)
Definition: ip6.h:236
template key/value backing page structure
Definition: bihash_doc.h:44
u32 ip_version_traffic_class_and_flow_label
Definition: ip6_packet.h:328
static void * vlib_buffer_push_uninit(vlib_buffer_t *b, u8 size)
Prepend uninitialized data to buffer.
Definition: buffer.h:285
unsigned short u16
Definition: types.h:57
u16 payload_length
Definition: ip6_packet.h:332
struct ip6_fib_table_instance_t_ ip6_fib_table_instance_t
A represenation of a single IP6 table.
static void * vlib_buffer_push_ip6(vlib_main_t *vm, vlib_buffer_t *b, ip6_address_t *src, ip6_address_t *dst, int proto)
Push IPv6 header to buffer.
Definition: ip6.h:555
serialize_function_t unserialize_vnet_ip6_main
Definition: ip6.h:337
u32 ip6_tcp_udp_icmp_validate_checksum(vlib_main_t *vm, vlib_buffer_t *p0)
Definition: ip6_forward.c:1271
void( serialize_function_t)(serialize_main_t *m, va_list *va)
Definition: serialize.h:168
unsigned char u8
Definition: types.h:56
uword * non_empty_dst_address_length_bitmap
Definition: ip6.h:136
clib_error_t * set_ip6_link_local_address(vlib_main_t *vm, u32 sw_if_index, ip6_address_t *address)
#define clib_mem_unaligned(pointer, type)
Definition: types.h:155
uword * interface_route_adj_index_by_sw_if_index
Definition: ip6.h:180
vlib_node_registration_t ip6_rewrite_local_node
A protocol Independent IP multicast FIB table.
Definition: mfib_table.h:29
#define IP_FLOW_HASH_PROTO
Definition: lookup.h:63
u32 table_id
Definition: ip6.h:70
clib_error_t * ip6_add_del_interface_address(vlib_main_t *vm, u32 sw_if_index, ip6_address_t *address, u32 address_length, u32 is_del)
Definition: ip6_forward.c:472
static uword ip6_unaligned_destination_matches_route(ip6_main_t *im, ip6_address_t *key, ip6_address_t *dest, uword dest_length)
Definition: ip6.h:246
static void * ip_interface_address_get_address(ip_lookup_main_t *lm, ip_interface_address_t *a)
Definition: lookup.h:172
clib_error_t * disable_ip6_interface(vlib_main_t *vm, u32 sw_if_index)
struct fib_table_t_ * fibs
Definition: ip6.h:151
u32 * fib_index_by_sw_if_index
Definition: ip6.h:163
void ip6_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip6_forward.c:421
enum ip6_fib_table_instance_type_t_ ip6_fib_table_instance_type_t
Enumeration of the FIB table instance types.
int vnet_ip6_nd_term(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_buffer_t *p0, ethernet_header_t *eth, ip6_header_t *ip, u32 sw_if_index, u16 bd_index)
ip6_address_t dst_address
Definition: ip6_packet.h:341
A protocol Independent FIB table.
Definition: fib_table.h:29
uword next_override
Definition: ip6.h:529
u8 * format_ip6_forward_next_trace(u8 *s, va_list *args)
Definition: ip6_forward.c:989