FD.io VPP  v18.07.1-19-g511ce25
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  /* required for pool_get_aligned. */
70  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
71 
72  /* Table ID (hash key) for this FIB. */
74 
75  /* Index into FIB vector. */
77 } ip6_fib_t;
78 
79 typedef struct ip6_mfib_t
80 {
81  /* Table ID (hash key) for this FIB. */
83 
84  /* Index into FIB vector. */
86 
87  /*
88  * Pointer to the top of a radix tree.
89  * This cannot be realloc'd, hence it cannot be inlined with this table
90  */
92 } ip6_mfib_t;
93 
94 struct ip6_main_t;
95 
97  (struct ip6_main_t * im,
98  uword opaque,
99  u32 sw_if_index,
101  u32 address_length, u32 if_address_index, u32 is_del);
102 
103 typedef struct
104 {
108 
109 typedef void (ip6_table_bind_function_t)
110  (struct ip6_main_t * im,
111  uword opaque, u32 sw_if_index, u32 new_fib_index, u32 old_fib_index);
112 
113 typedef struct
114 {
118 
119 /**
120  * Enumeration of the FIB table instance types
121  */
123 {
124  /**
125  * This table stores the routes that are used to forward traffic.
126  * The key is the prefix, the result the adjacnecy to forward on.
127  */
129  /**
130  * The table that stores ALL routes learned by the DP.
131  * Some of these routes may not be ready to install in forwarding
132  * at a given time.
133  * The key in this table is the prefix, the result is the fib_entry_t
134  */
137 
138 #define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1)
139 
140 /**
141  * A represenation of a single IP6 table
142  */
144 {
145  /* The hash table */
146  BVT (clib_bihash) ip6_hash;
147 
148  /* bitmap / refcounts / vector of mask widths to search */
151  i32 dst_address_length_refcounts[129];
153 
154 typedef struct ip6_main_t
155 {
156  /**
157  * The two FIB tables; fwding and non-fwding
158  */
160 
162 
163  /* Pool of FIBs. */
165 
166  /* Pool of V6 FIBs. */
168 
169  /** Vector of MFIBs. */
171 
172  /* Network byte orders subnet mask for each prefix length */
173  ip6_address_t fib_masks[129];
174 
175  /* Table index indexed by software interface. */
177 
178  /** Table index indexed by software interface. */
180 
181  /* IP6 enabled count by software interface */
183 
184  /* Hash table mapping table id to fib index.
185  ID space is not necessarily dense; index space is dense. */
187 
188  /** Hash table mapping table id to multicast fib index.
189  ID space is not necessarily dense; index space is dense. */
191 
192  /* Hash table mapping interface rewrite adjacency index by sw if index. */
194 
195  /* Functions to call when interface address changes. */
198 
199  /** Functions to call when interface to table biding changes. */
201 
202  /* Template used to generate IP6 neighbor solicitation packets. */
204 
205  /* ip6 lookup table config parameters */
208 
209  /* Seed for Jenkins hash used to compute ip6 flow hash. */
211 
212  struct
213  {
214  /* TTL to use for host generated packets. */
216 
217  u8 pad[3];
218  } host_config;
219 
220  /* HBH processing enabled? */
222 } ip6_main_t;
223 
224 /* Global ip6 main structure. */
225 extern ip6_main_t ip6_main;
226 
227 /* Global ip6 input node. Errors get attached to ip6 input node. */
235 
236 extern void ip6_forward_next_trace (vlib_main_t * vm,
237  vlib_node_runtime_t * node,
238  vlib_frame_t * frame,
239  vlib_rx_or_tx_t which_adj_index);
240 
243  const ip6_address_t * key,
244  const ip6_address_t * dest, uword dest_length)
245 {
246  int i;
247  for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
248  {
249  if ((key->as_uword[i] ^ dest->as_uword[i]) & im->
250  fib_masks[dest_length].as_uword[i])
251  return 0;
252  }
253  return 1;
254 }
255 
258  ip6_address_t * key,
260 {
262  return ip6_destination_matches_route (im, key, a, ia->address_length);
263 }
264 
265 /* As above but allows for unaligned destinations (e.g. works right from IP header of packet). */
268  ip6_address_t * key,
269  ip6_address_t * dest,
270  uword dest_length)
271 {
272  int i;
273  for (i = 0; i < ARRAY_LEN (key->as_uword); i++)
274  {
275  if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i])
276  & im->fib_masks[dest_length].as_uword[i])
277  return 0;
278  }
279  return 1;
280 }
281 
282 extern int ip6_get_ll_address (u32 sw_if_index, ip6_address_t * addr);
283 
284 always_inline int
286  u32 sw_if_index,
287  const ip6_address_t * dst, ip6_address_t * src)
288 {
290  {
291  return ip6_get_ll_address (sw_if_index, src);
292  }
293  else
294  {
295  u32 if_add_index =
296  lm->if_address_pool_index_by_sw_if_index[sw_if_index];
297  if (PREDICT_TRUE (if_add_index != ~0))
298  {
299  ip_interface_address_t *if_add =
300  pool_elt_at_index (lm->if_address_pool, if_add_index);
301  ip6_address_t *if_ip =
303  *src = *if_ip;
304  return (!0);
305  }
306  }
307 
308  src->as_u64[0] = 0;
309  src->as_u64[1] = 0;
310 
311  return (0);
312 }
313 
314 /* Find interface address which matches destination. */
317  ip6_address_t * dst,
318  u32 sw_if_index,
320  result_ia)
321 {
322  ip_lookup_main_t *lm = &im->lookup_main;
324  ip6_address_t *result = 0;
325 
326  /* *INDENT-OFF* */
327  foreach_ip_interface_address (lm, ia, sw_if_index,
328  1 /* honor unnumbered */,
329  ({
331  if (ip6_destination_matches_route (im, dst, a, ia->address_length))
332  {
333  result = a;
334  break;
335  }
336  }));
337  /* *INDENT-ON* */
338  if (result_ia)
339  *result_ia = result ? ia : 0;
340  return result;
341 }
342 
344  u32 sw_if_index,
345  ip6_address_t * address,
346  u32 address_length, u32 is_del);
347 void ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
348 
349 /**
350  * @brie get first IPv6 interface address
351  */
353 
355 
357  u32 sw_if_index, u8 refresh);
358 
359 uword
361  u16 dst_port, u32 next_node_index);
362 
364  ip6_header_t * ip0,
365  int *bogus_lengthp);
366 
367 void ip6_register_protocol (u32 protocol, u32 node_index);
368 
370 
372  u32 sw_if_index, u32 ai);
373 
374 
375 void
377  u8 * mac);
378 
379 void
381  ip6_address_t * ip);
382 
384  flow_hash_config_t flow_hash_config);
385 
386 clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
387 
389 
390 int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index);
391 
393  u32 sw_if_index,
394  ip6_address_t * address);
395 
397  void *data_callback,
398  u32 pid,
399  void *address_arg,
400  uword node_index,
401  uword type_opaque,
402  uword data, int is_add);
403 
404 int vnet_ip6_nd_term (vlib_main_t * vm,
405  vlib_node_runtime_t * node,
406  vlib_buffer_t * p0,
407  ethernet_header_t * eth,
408  ip6_header_t * ip, u32 sw_if_index, u16 bd_index);
409 
410 void send_ip6_na (vlib_main_t * vm, u32 sw_if_index);
412  const ip6_address_t * addr, u32 sw_if_index);
413 
414 u8 *format_ip6_forward_next_trace (u8 * s, va_list * args);
415 
417 
418 void ip6_punt_policer_add_del (u8 is_add, u32 policer_index);
419 void ip6_punt_redirect_add (u32 rx_sw_if_index,
420  u32 tx_sw_if_index, ip46_address_t * nh);
421 void ip6_punt_redirect_del (u32 rx_sw_if_index);
422 
423 int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
424  u32 table_index);
426 
427 /* Compute flow hash. We'll use it to select which Sponge to use for this
428  flow. And other things. */
431  flow_hash_config_t flow_hash_config)
432 {
433  tcp_header_t *tcp;
434  u64 a, b, c;
435  u64 t1, t2;
436  uword is_tcp_udp = 0;
437  u8 protocol = ip->protocol;
438 
439  if (PREDICT_TRUE
440  ((ip->protocol == IP_PROTOCOL_TCP)
441  || (ip->protocol == IP_PROTOCOL_UDP)))
442  {
443  is_tcp_udp = 1;
444  tcp = (void *) (ip + 1);
445  }
446  else if (ip->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
447  {
449  if ((hbh->protocol == IP_PROTOCOL_TCP) ||
450  (hbh->protocol == IP_PROTOCOL_UDP))
451  {
452  is_tcp_udp = 1;
453  tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
454  }
455  protocol = hbh->protocol;
456  }
457 
458  t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
459  t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0;
460 
461  t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]);
462  t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0;
463 
464  a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1;
465  b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2;
466  b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? protocol : 0;
467 
468  t1 = is_tcp_udp ? tcp->src : 0;
469  t2 = is_tcp_udp ? tcp->dst : 0;
470 
471  t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0;
472  t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0;
473 
474  c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
475  ((t1 << 16) | t2) : ((t2 << 16) | t1);
476 
477  hash_mix64 (a, b, c);
478  return (u32) c;
479 }
480 
481 /* ip6_locate_header
482  *
483  * This function is to search for the header specified by the protocol number
484  * in find_hdr_type.
485  * This is used to locate a specific IPv6 extension header
486  * or to find transport layer header.
487  * 1. If the find_hdr_type < 0 then it finds and returns the protocol number and
488  * offset stored in *offset of the transport or ESP header in the chain if
489  * found.
490  * 2. If a header with find_hdr_type > 0 protocol number is found then the
491  * offset is stored in *offset and protocol number of the header is
492  * returned.
493  * 3. If find_hdr_type is not found or packet is malformed or
494  * it is a non-first fragment -1 is returned.
495  */
496 always_inline int
498  ip6_header_t * ip0, int find_hdr_type, u32 * offset)
499 {
500  u8 next_proto = ip0->protocol;
501  u8 *next_header;
502  u8 done = 0;
503  u32 cur_offset;
504  u8 *temp_nxthdr = 0;
505  u32 exthdr_len = 0;
506 
507  next_header = ip6_next_header (ip0);
508  cur_offset = sizeof (ip6_header_t);
509  while (1)
510  {
511  done = (next_proto == find_hdr_type);
512  if (PREDICT_FALSE
513  (next_header >=
514  (u8 *) vlib_buffer_get_current (p0) + p0->current_length))
515  {
516  //A malicious packet could set an extension header with a too big size
517  return (-1);
518  }
519  if (done)
520  break;
521  if ((!ip6_ext_hdr (next_proto)) || next_proto == IP_PROTOCOL_IP6_NONXT)
522  {
523  if (find_hdr_type < 0)
524  break;
525  return -1;
526  }
527  if (next_proto == IP_PROTOCOL_IPV6_FRAGMENTATION)
528  {
529  ip6_frag_hdr_t *frag_hdr = (ip6_frag_hdr_t *) next_header;
530  u16 frag_off = ip6_frag_hdr_offset (frag_hdr);
531  /* Non first fragment return -1 */
532  if (frag_off)
533  return (-1);
534  exthdr_len = sizeof (ip6_frag_hdr_t);
535  temp_nxthdr = next_header + exthdr_len;
536  }
537  else if (next_proto == IP_PROTOCOL_IPSEC_AH)
538  {
539  exthdr_len =
540  ip6_ext_authhdr_len (((ip6_ext_header_t *) next_header));
541  temp_nxthdr = next_header + exthdr_len;
542  }
543  else
544  {
545  exthdr_len =
546  ip6_ext_header_len (((ip6_ext_header_t *) next_header));
547  temp_nxthdr = next_header + exthdr_len;
548  }
549  next_proto = ((ip6_ext_header_t *) next_header)->next_hdr;
550  next_header = temp_nxthdr;
551  cur_offset += exthdr_len;
552  }
553 
554  *offset = cur_offset;
555  return (next_proto);
556 }
557 
558 u8 *format_ip6_hop_by_hop_ext_hdr (u8 * s, va_list * args);
559 /*
560  * Hop-by-Hop handling
561  */
562 typedef struct
563 {
564  /* Array of function pointers to HBH option handling routines */
565  int (*options[256]) (vlib_buffer_t * b, ip6_header_t * ip,
567  u8 *(*trace[256]) (u8 * s, ip6_hop_by_hop_option_t * opt);
570 
572 
573 int ip6_hbh_register_option (u8 option,
574  int options (vlib_buffer_t * b,
575  ip6_header_t * ip,
577  u8 * trace (u8 * s,
578  ip6_hop_by_hop_option_t * opt));
579 int ip6_hbh_unregister_option (u8 option);
580 void ip6_hbh_set_next_override (uword next);
581 
582 /**
583  * Push IPv6 header to buffer
584  *
585  * @param vm - vlib_main
586  * @param b - buffer to write the header to
587  * @param src - source IP
588  * @param dst - destination IP
589  * @param prot - payload proto
590  *
591  * @return - pointer to start of IP header
592  */
593 always_inline void *
595  ip6_address_t * src, ip6_address_t * dst, int proto)
596 {
597  ip6_header_t *ip6h;
598  u16 payload_length;
599 
600  /* make some room */
601  ip6h = vlib_buffer_push_uninit (b, sizeof (ip6_header_t));
602 
604  clib_host_to_net_u32 (0x6 << 28);
605 
606  /* calculate ip6 payload length */
607  payload_length = vlib_buffer_length_in_chain (vm, b);
608  payload_length -= sizeof (*ip6h);
609 
610  ip6h->payload_length = clib_host_to_net_u16 (payload_length);
611 
612  ip6h->hop_limit = 0xff;
613  ip6h->protocol = proto;
614  clib_memcpy (ip6h->src_address.as_u8, src->as_u8,
615  sizeof (ip6h->src_address));
616  clib_memcpy (ip6h->dst_address.as_u8, dst->as_u8,
617  sizeof (ip6h->src_address));
618  b->flags |= VNET_BUFFER_F_IS_IP6;
619 
620  return ip6h;
621 }
622 
623 #endif /* included_ip_ip6_h */
624 
625 /*
626  * fd.io coding-style-patch-verification: ON
627  *
628  * Local Variables:
629  * eval: (c-set-style "gnu")
630  * End:
631  */
#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:97
typedef address
Definition: ip_types.api:35
int ip6_address_compare(ip6_address_t *a1, ip6_address_t *a2)
Definition: ip46_cli.c:60
static vlib_cli_command_t trace
(constructor) VLIB_CLI_COMMAND (trace)
Definition: vlib_api_cli.c:862
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:1977
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:63
ip6_fib_t * v6_fibs
Definition: ip6.h:167
a
Definition: bitmap.h:538
void ip6_register_protocol(u32 protocol, u32 node_index)
Definition: ip6_forward.c:1426
#define IP_FLOW_HASH_SRC_PORT
Definition: lookup.h:64
u32 * mfib_index_by_sw_if_index
Table index indexed by software interface.
Definition: ip6.h:179
uword lookup_table_size
Definition: ip6.h:207
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:2510
int vnet_set_ip6_classify_intfc(vlib_main_t *vm, u32 sw_if_index, u32 table_index)
Definition: ip6_forward.c:2928
The table that stores ALL routes learned by the DP.
Definition: ip6.h:135
#define PREDICT_TRUE(x)
Definition: clib.h:106
u32 flow_hash_seed
Definition: ip6.h:210
u8 as_u8[16]
Definition: ip6_packet.h:48
u64 as_u64[2]
Definition: ip6_packet.h:51
unsigned long u64
Definition: types.h:89
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:316
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:2518
#define IP_FLOW_HASH_REVERSE_SRC_DST
Definition: lookup.h:66
int ip6_get_ll_address(u32 sw_if_index, ip6_address_t *addr)
u8 ttl
Definition: ip6.h:215
u8 * ip_enabled_by_sw_if_index
Definition: ip6.h:182
ip6_address_t * ip6_interface_first_address(ip6_main_t *im, u32 sw_if_index)
get first IPv6 interface address
Definition: ip6_forward.c:174
vlib_node_registration_t ip6_rewrite_node
(constructor) VLIB_REGISTER_NODE (ip6_rewrite_node)
Definition: ip6_forward.c:1990
int i
#define IP_FLOW_HASH_DST_PORT
Definition: lookup.h:65
struct ip6_mfib_t ip6_mfib_t
void send_ip6_na(vlib_main_t *vm, u32 sw_if_index)
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:250
struct _tcp_header tcp_header_t
ip6_address_t src_address
Definition: ip6_packet.h:347
u8 * prefix_lengths_in_search_order
Definition: ip6.h:150
unsigned char u8
Definition: types.h:56
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:2009
vlib_packet_template_t discover_neighbor_packet_template
Definition: ip6.h:203
vlib_rx_or_tx_t
Definition: defs.h:44
vlib_node_registration_t ip6_discover_neighbor_node
(constructor) VLIB_REGISTER_NODE (ip6_discover_neighbor_node)
u8 * format_ip6_hop_by_hop_ext_hdr(u8 *s, va_list *args)
Definition: ip6_forward.c:2074
#define IP_FLOW_HASH_DST_ADDR
Definition: lookup.h:62
#define always_inline
Definition: clib.h:92
void ip6_ethernet_update_adjacency(vnet_main_t *vnm, u32 sw_if_index, u32 ai)
Definition: ip6_neighbor.c:621
static BVT(clib_bihash)
Definition: adj_nbr.c:26
ip6_hop_by_hop_main_t ip6_hop_by_hop_main
Definition: ip6_forward.c:2037
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:242
int ip6_interface_enabled(vlib_main_t *vm, u32 sw_if_index)
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:143
unsigned int u32
Definition: types.h:88
clib_error_t * ip6_probe_neighbor(vlib_main_t *vm, ip6_address_t *dst, u32 sw_if_index, u8 refresh)
Definition: ip6_forward.c:1438
u32 lookup_table_nbuckets
Definition: ip6.h:206
void( ip6_table_bind_function_t)(struct ip6_main_t *im, uword opaque, u32 sw_if_index, u32 new_fib_index, u32 old_fib_index)
Definition: ip6.h:110
int ip6_hbh_unregister_option(u8 option)
Definition: ip6_forward.c:2542
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:464
uword * mfib_index_by_table_id
Hash table mapping table id to multicast fib index.
Definition: ip6.h:190
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:108
u8 address_length
Definition: ip_types.api:42
vlib_node_registration_t ip6_input_node
(constructor) VLIB_REGISTER_NODE (ip6_input_node)
Definition: ip6_input.c:228
unsigned short u16
Definition: types.h:57
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:202
void ip6_ethernet_mac_address_from_link_local_address(u8 *mac, ip6_address_t *ip)
Definition: ip6_forward.c:2684
vlib_node_registration_t ip6_glean_node
(constructor) VLIB_REGISTER_NODE (ip6_glean_node)
static u32 ip6_compute_flow_hash(const ip6_header_t *ip, flow_hash_config_t flow_hash_config)
Definition: ip6.h:430
ip6_table_bind_callback_t * table_bind_callbacks
Functions to call when interface to table biding changes.
Definition: ip6.h:200
#define PREDICT_FALSE(x)
Definition: clib.h:105
u32 index
Definition: ip6.h:76
ip6_add_del_interface_address_callback_t * add_del_interface_address_callbacks
Definition: ip6.h:197
Definition: ip6.h:79
#define ip6_ext_authhdr_len(p)
Definition: ip6_packet.h:491
void ip6_link_local_address_from_ethernet_mac_address(ip6_address_t *ip, u8 *mac)
Definition: ip6_forward.c:2668
uword * fib_index_by_table_id
Definition: ip6.h:186
#define ip6_ext_header_len(p)
Definition: ip6_packet.h:490
ip6_address_t fib_masks[129]
Definition: ip6.h:173
static int ip6_src_address_for_packet(ip_lookup_main_t *lm, u32 sw_if_index, const ip6_address_t *dst, ip6_address_t *src)
Definition: ip6.h:285
#define hash_mix64(a0, b0, c0)
Definition: hash.h:531
svmdb_client_t * c
Definition: ip6.h:67
struct radix_node_head * rhead
Definition: ip6.h:91
This table stores the routes that are used to forward traffic.
Definition: ip6.h:128
void send_ip6_na_w_addr(vlib_main_t *vm, const ip6_address_t *addr, u32 sw_if_index)
#define clib_memcpy(a, b, c)
Definition: string.h:75
u32 dst_address_length
Definition: ip6.h:63
u32 index
Definition: ip6.h:85
#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:221
static void * ip6_next_header(ip6_header_t *i)
Definition: ip6_packet.h:374
void ip6_punt_redirect_add(u32 rx_sw_if_index, u32 tx_sw_if_index, ip46_address_t *nh)
static u8 ip6_ext_hdr(u8 nexthdr)
Definition: ip6_packet.h:478
void ip6_punt_redirect_del(u32 rx_sw_if_index)
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:910
signed int i32
Definition: types.h:81
vlib_node_registration_t ip6_lookup_node
(constructor) VLIB_REGISTER_NODE (ip6_lookup_node)
Definition: ip6_forward.c:512
void ip6_punt_policer_add_del(u8 is_add, u32 policer_index)
#define ip6_frag_hdr_offset(hdr)
Definition: ip6_packet.h:542
#define IP6_FIB_NUM_TABLES
Definition: ip6.h:138
vlib buffer structure definition and a few select access methods.
#define IP_FLOW_HASH_SRC_ADDR
Flow hash configuration.
Definition: lookup.h:61
ip6_fib_table_instance_type_t_
Enumeration of the FIB table instance types.
Definition: ip6.h:122
serialize_function_t serialize_vnet_ip6_main
Definition: ip6.h:369
ip6_main_t ip6_main
Definition: ip6_forward.c:2574
ip_lookup_main_t lookup_main
Definition: ip6.h:161
u32 table_id
Definition: ip6.h:82
struct ip6_main_t ip6_main_t
struct mfib_table_t_ * mfibs
Vector of MFIBs.
Definition: ip6.h:170
static uword ip6_address_is_link_local_unicast(const ip6_address_t *a)
Definition: ip6_packet.h:302
#define clib_mem_unaligned(pointer, type)
Definition: types.h:155
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:2736
static int ip6_locate_header(vlib_buffer_t *p0, ip6_header_t *ip0, int find_hdr_type, u32 *offset)
Definition: ip6.h:497
static uword ip6_destination_matches_interface(ip6_main_t *im, ip6_address_t *key, ip_interface_address_t *ia)
Definition: ip6.h:257
struct _vlib_node_registration vlib_node_registration_t
template key/value backing page structure
Definition: bihash_doc.h:44
u32 ip_version_traffic_class_and_flow_label
Definition: ip6_packet.h:334
static void * vlib_buffer_push_uninit(vlib_buffer_t *b, u8 size)
Prepend uninitialized data to buffer.
Definition: buffer.h:299
u16 payload_length
Definition: ip6_packet.h:338
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:594
serialize_function_t unserialize_vnet_ip6_main
Definition: ip6.h:369
u32 ip6_tcp_udp_icmp_validate_checksum(vlib_main_t *vm, vlib_buffer_t *p0)
Definition: ip6_forward.c:986
void( serialize_function_t)(serialize_main_t *m, va_list *va)
Definition: serialize.h:168
u64 uword
Definition: types.h:112
uword * non_empty_dst_address_length_bitmap
Definition: ip6.h:149
clib_error_t * set_ip6_link_local_address(vlib_main_t *vm, u32 sw_if_index, ip6_address_t *address)
uword * interface_route_adj_index_by_sw_if_index
Definition: ip6.h:193
vlib_node_registration_t ip6_rewrite_local_node
A protocol Independent IP multicast FIB table.
Definition: mfib_table.h:35
#define IP_FLOW_HASH_PROTO
Definition: lookup.h:63
void ip6_forward_next_trace(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, vlib_rx_or_tx_t which_adj_index)
Definition: ip6_forward.c:818
u32 table_id
Definition: ip6.h:73
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:193
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:267
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)
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
Definition: buffer.h:111
struct fib_table_t_ * fibs
Definition: ip6.h:164
u32 * fib_index_by_sw_if_index
Definition: ip6.h:176
void ip6_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip6_forward.c:142
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:347
A protocol Independent FIB table.
Definition: fib_table.h:69
uword next_override
Definition: ip6.h:568
u8 * format_ip6_forward_next_trace(u8 *s, va_list *args)
Definition: ip6_forward.c:768