FD.io VPP  v19.08.3-2-gbabecb413
Vector Packet Processing
ip6_packet.h
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1 /*
2  * Copyright (c) 2015 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  * ip6/packet.h: ip6 packet format
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_ip6_packet_h
41 #define included_ip6_packet_h
42 
43 #include <vnet/tcp/tcp_packet.h>
44 #include <vnet/ip/ip4_packet.h>
45 
46 typedef union
47 {
48  u8 as_u8[16];
49  u16 as_u16[8];
50  u32 as_u32[4];
51  u64 as_u64[2];
52  uword as_uword[16 / sizeof (uword)];
53 }
55 
56 typedef struct
57 {
58  ip6_address_t addr, mask;
60 
61 /* Packed so that the mhash key doesn't include uninitialized pad bytes */
62 /* *INDENT-OFF* */
63 typedef CLIB_PACKED (struct {
64  /* IP address must be first for ip_interface_address_get_address() to work */
65  ip6_address_t ip6_addr;
66  u32 fib_index;
67 }) ip6_address_fib_t;
68 /* *INDENT-ON* */
69 
70 typedef enum
71 {
75 } ip46_type_t;
76 
77 /* *INDENT-OFF* */
78 typedef CLIB_PACKED (union ip46_address_t_ {
79  struct {
80  u32 pad[3];
81  ip4_address_t ip4;
82  };
83  ip6_address_t ip6;
84  u8 as_u8[16];
85  u64 as_u64[2];
86 }) ip46_address_t;
87 /* *INDENT-ON* */
88 #define ip46_address_is_ip4(ip46) (((ip46)->pad[0] | (ip46)->pad[1] | (ip46)->pad[2]) == 0)
89 #define ip46_address_mask_ip4(ip46) ((ip46)->pad[0] = (ip46)->pad[1] = (ip46)->pad[2] = 0)
90 #define ip46_address_set_ip4(ip46, ip) (ip46_address_mask_ip4(ip46), (ip46)->ip4 = (ip)[0])
91 #define ip46_address_reset(ip46) ((ip46)->as_u64[0] = (ip46)->as_u64[1] = 0)
92 #define ip46_address_cmp(ip46_1, ip46_2) (memcmp(ip46_1, ip46_2, sizeof(*ip46_1)))
93 #define ip46_address_is_zero(ip46) (((ip46)->as_u64[0] == 0) && ((ip46)->as_u64[1] == 0))
94 #define ip46_address_is_equal(a1, a2) (((a1)->as_u64[0] == (a2)->as_u64[0]) \
95  && ((a1)->as_u64[1] == (a2)->as_u64[1]))
96 #define ip46_address_initializer {{{ 0 }}}
97 
99 ip46_address_is_equal_v4 (const ip46_address_t * ip46,
100  const ip4_address_t * ip4)
101 {
102  return (ip46->ip4.as_u32 == ip4->as_u32);
103 }
104 
106 ip46_address_is_equal_v6 (const ip46_address_t * ip46,
107  const ip6_address_t * ip6)
108 {
109  return ((ip46->ip6.as_u64[0] == ip6->as_u64[0]) &&
110  (ip46->ip6.as_u64[1] == ip6->as_u64[1]));
111 }
112 
114 ip46_address_copy (ip46_address_t * dst, const ip46_address_t * src)
115 {
116  dst->as_u64[0] = src->as_u64[0];
117  dst->as_u64[1] = src->as_u64[1];
118 }
119 
121 ip46_address_set_ip6 (ip46_address_t * dst, const ip6_address_t * src)
122 {
123  dst->as_u64[0] = src->as_u64[0];
124  dst->as_u64[1] = src->as_u64[1];
125 }
126 
127 always_inline ip46_address_t
128 to_ip46 (u32 is_ipv6, u8 * buf)
129 {
130  ip46_address_t ip;
131  if (is_ipv6)
132  ip.ip6 = *((ip6_address_t *) buf);
133  else
134  ip46_address_set_ip4 (&ip, (ip4_address_t *) buf);
135  return ip;
136 }
137 
138 
139 always_inline void
140 ip6_addr_fib_init (ip6_address_fib_t * addr_fib,
141  const ip6_address_t * address, u32 fib_index)
142 {
143  addr_fib->ip6_addr = *address;
144  addr_fib->fib_index = fib_index;
145 }
146 
147 /* Special addresses:
148  unspecified ::/128
149  loopback ::1/128
150  global unicast 2000::/3
151  unique local unicast fc00::/7
152  link local unicast fe80::/10
153  multicast ff00::/8
154  ietf reserved everything else. */
155 
156 #define foreach_ip6_multicast_address_scope \
157  _ (loopback, 0x1) \
158  _ (link_local, 0x2) \
159  _ (admin_local, 0x4) \
160  _ (site_local, 0x5) \
161  _ (organization_local, 0x8) \
162  _ (global, 0xe)
163 
164 #define foreach_ip6_multicast_link_local_group_id \
165  _ (all_hosts, 0x1) \
166  _ (all_routers, 0x2) \
167  _ (rip_routers, 0x9) \
168  _ (eigrp_routers, 0xa) \
169  _ (pim_routers, 0xd) \
170  _ (mldv2_routers, 0x16)
171 
172 typedef enum
173 {
174 #define _(f,n) IP6_MULTICAST_SCOPE_##f = n,
176 #undef _
178 
179 typedef enum
180 {
181 #define _(f,n) IP6_MULTICAST_GROUP_ID_##f = n,
183 #undef _
185 
187 ip6_address_is_multicast (const ip6_address_t * a)
188 {
189  return a->as_u8[0] == 0xff;
190 }
191 
193 ip46_address_is_multicast (const ip46_address_t * a)
194 {
195  return ip46_address_is_ip4 (a) ? ip4_address_is_multicast (&a->ip4) :
196  ip6_address_is_multicast (&a->ip6);
197 }
198 
199 always_inline void
200 ip6_address_copy (ip6_address_t * dst, const ip6_address_t * src)
201 {
202  dst->as_u64[0] = src->as_u64[0];
203  dst->as_u64[1] = src->as_u64[1];
204 }
205 
206 always_inline void
208  ip6_multicast_address_scope_t scope,
209  u16 id)
210 {
211  a->as_u64[0] = a->as_u64[1] = 0;
212  a->as_u16[0] = clib_host_to_net_u16 (0xff00 | scope);
213  a->as_u16[7] = clib_host_to_net_u16 (id);
214 }
215 
216 always_inline void
218 {
219  /* 0xff02::1:ffXX:XXXX. */
220  a->as_u64[0] = a->as_u64[1] = 0;
221  a->as_u16[0] = clib_host_to_net_u16 (0xff02);
222  a->as_u8[11] = 1;
223  ASSERT ((id >> 24) == 0);
224  id |= 0xff << 24;
225  a->as_u32[3] = clib_host_to_net_u32 (id);
226 }
227 
228 always_inline void
229 ip6_multicast_ethernet_address (u8 * ethernet_address, u32 group_id)
230 {
231  ethernet_address[0] = 0x33;
232  ethernet_address[1] = 0x33;
233  ethernet_address[2] = ((group_id >> 24) & 0xff);
234  ethernet_address[3] = ((group_id >> 16) & 0xff);
235  ethernet_address[4] = ((group_id >> 8) & 0xff);
236  ethernet_address[5] = ((group_id >> 0) & 0xff);
237 }
238 
240 ip6_address_is_equal (const ip6_address_t * a, const ip6_address_t * b)
241 {
242  int i;
243  for (i = 0; i < ARRAY_LEN (a->as_uword); i++)
244  if (a->as_uword[i] != b->as_uword[i])
245  return 0;
246  return 1;
247 }
248 
250 ip6_address_is_equal_masked (const ip6_address_t * a,
251  const ip6_address_t * b,
252  const ip6_address_t * mask)
253 {
254  int i;
255  for (i = 0; i < ARRAY_LEN (a->as_uword); i++)
256  {
257  uword a_masked, b_masked;
258  a_masked = a->as_uword[i] & mask->as_uword[i];
259  b_masked = b->as_uword[i] & mask->as_uword[i];
260 
261  if (a_masked != b_masked)
262  return 0;
263  }
264  return 1;
265 }
266 
267 always_inline void
268 ip6_address_mask (ip6_address_t * a, const ip6_address_t * mask)
269 {
270  int i;
271  for (i = 0; i < ARRAY_LEN (a->as_uword); i++)
272  a->as_uword[i] &= mask->as_uword[i];
273 }
274 
275 always_inline void
276 ip6_address_set_zero (ip6_address_t * a)
277 {
278  int i;
279  for (i = 0; i < ARRAY_LEN (a->as_uword); i++)
280  a->as_uword[i] = 0;
281 }
282 
283 always_inline void
284 ip6_address_mask_from_width (ip6_address_t * a, u32 width)
285 {
286  int i, byte, bit, bitnum;
287  ASSERT (width <= 128);
288  clib_memset (a, 0, sizeof (a[0]));
289  for (i = 0; i < width; i++)
290  {
291  bitnum = (7 - (i & 7));
292  byte = i / 8;
293  bit = 1 << bitnum;
294  a->as_u8[byte] |= bit;
295  }
296 }
297 
299 ip6_address_is_zero (const ip6_address_t * a)
300 {
301  int i;
302  for (i = 0; i < ARRAY_LEN (a->as_uword); i++)
303  if (a->as_uword[i] != 0)
304  return 0;
305  return 1;
306 }
307 
308 /* Check for unspecified address ::0 */
310 ip6_address_is_unspecified (const ip6_address_t * a)
311 {
312  return ip6_address_is_zero (a);
313 }
314 
315 /* Check for loopback address ::1 */
317 ip6_address_is_loopback (const ip6_address_t * a)
318 {
319  return (a->as_u64[0] == 0 &&
320  a->as_u32[2] == 0 &&
321  a->as_u16[6] == 0 && a->as_u8[14] == 0 && a->as_u8[15] == 1);
322 }
323 
324 /* Check for link local unicast fe80::/10. */
326 ip6_address_is_link_local_unicast (const ip6_address_t * a)
327 {
328  return a->as_u8[0] == 0xfe && (a->as_u8[1] & 0xc0) == 0x80;
329 }
330 
331 /* Check for unique local unicast fc00::/7. */
333 ip6_address_is_local_unicast (const ip6_address_t * a)
334 {
335  return (a->as_u8[0] & 0xfe) == 0xfc;
336 }
337 
338 /* Check for unique global unicast 2000::/3. */
340 ip6_address_is_global_unicast (const ip6_address_t * a)
341 {
342  return (a->as_u8[0] & 0xe0) == 0x20;
343 }
344 
345 /* Check for solicited node multicast 0xff02::1:ff00:0/104 */
348 {
349  return (a->as_u32[0] == clib_host_to_net_u32 (0xff020000)
350  && a->as_u32[1] == 0
351  && a->as_u32[2] == clib_host_to_net_u32 (1)
352  && a->as_u8[12] == 0xff);
353 }
354 
356 ip6_address_hash_to_u32 (const ip6_address_t * a)
357 {
358  return (a->as_u32[0] ^ a->as_u32[1] ^ a->as_u32[2] ^ a->as_u32[3]);
359 }
360 
362 ip6_address_hash_to_u64 (const ip6_address_t * a)
363 {
364  return (a->as_u64[0] ^ a->as_u64[1]);
365 }
366 
367 typedef struct
368 {
369  /* 4 bit version, 8 bit traffic class and 20 bit flow label. */
371 
372  /* Total packet length not including this header (but including
373  any extension headers if present). */
375 
376  /* Protocol for next header. */
378 
379  /* Hop limit decremented by router at each hop. */
381 
382  /* Source and destination address. */
383  ip6_address_t src_address, dst_address;
384 } ip6_header_t;
385 
388 {
389  return (i->ip_version_traffic_class_and_flow_label & 0x0FF00000) >> 20;
390 }
391 
394 {
395  return (clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label)
396  & 0x0ff00000) >> 20;
397 }
398 
401 {
402  u32 tmp =
403  clib_net_to_host_u32 (ip6->ip_version_traffic_class_and_flow_label);
404  tmp &= 0xf00fffff;
405  tmp |= (dscp << 20);
406  ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (tmp);
407 }
408 
409 always_inline void *
411 {
412  return (void *) (i + 1);
413 }
414 
415 always_inline void
417 {
420  dst->payload_length = src->payload_length;
421  dst->protocol = src->protocol;
422  dst->hop_limit = src->hop_limit;
423 
424  dst->src_address.as_uword[0] = src->src_address.as_uword[0];
425  dst->src_address.as_uword[1] = src->src_address.as_uword[1];
426  dst->dst_address.as_uword[0] = src->dst_address.as_uword[0];
427  dst->dst_address.as_uword[1] = src->dst_address.as_uword[1];
428 }
429 
430 always_inline void
432 {
433  {
434  ip6_address_t src0, dst0;
435 
436  src0 = ip0->src_address;
437  dst0 = ip0->dst_address;
438  ip0->src_address = dst0;
439  ip0->dst_address = src0;
440  }
441 
442  {
443  u16 src0, dst0;
444 
445  src0 = tcp0->src;
446  dst0 = tcp0->dst;
447  tcp0->src = dst0;
448  tcp0->dst = src0;
449  }
450 }
451 
452 always_inline void
454  tcp_header_t * tcp0, tcp_header_t * tcp1)
455 {
456  {
457  ip6_address_t src0, dst0, src1, dst1;
458 
459  src0 = ip0->src_address;
460  src1 = ip1->src_address;
461  dst0 = ip0->dst_address;
462  dst1 = ip1->dst_address;
463  ip0->src_address = dst0;
464  ip1->src_address = dst1;
465  ip0->dst_address = src0;
466  ip1->dst_address = src1;
467  }
468 
469  {
470  u16 src0, dst0, src1, dst1;
471 
472  src0 = tcp0->src;
473  src1 = tcp1->src;
474  dst0 = tcp0->dst;
475  dst1 = tcp1->dst;
476  tcp0->src = dst0;
477  tcp1->src = dst1;
478  tcp0->dst = src0;
479  tcp1->dst = src1;
480  }
481 }
482 
483 
484 /* *INDENT-OFF* */
485 typedef CLIB_PACKED (struct {
486  u8 data;
487 }) ip6_pad1_option_t;
488 /* *INDENT-ON* */
489 
490 /* *INDENT-OFF* */
491 typedef CLIB_PACKED (struct {
492  u8 type;
493  u8 len;
494  u8 data[0];
495 }) ip6_padN_option_t;
496 /* *INDENT-ON* */
497 
498 /* *INDENT-OFF* */
499 typedef CLIB_PACKED (struct {
500 #define IP6_MLDP_ALERT_TYPE 0x5
501  u8 type;
502  u8 len;
503  u16 value;
504 }) ip6_router_alert_option_t;
505 /* *INDENT-ON* */
506 
507 /* *INDENT-OFF* */
508 typedef CLIB_PACKED (struct {
509  u8 next_hdr;
510  /* Length of this header plus option data in 8 byte units. */
511  u8 n_data_u64s;
512 }) ip6_ext_header_t;
513 /* *INDENT-ON* */
514 
515 #define foreach_ext_hdr_type \
516  _(IP6_HOP_BY_HOP_OPTIONS) \
517  _(IPV6_ROUTE) \
518  _(IPV6_FRAGMENTATION) \
519  _(IPSEC_ESP) \
520  _(IPSEC_AH) \
521  _(IP6_DESTINATION_OPTIONS) \
522  _(MOBILITY) \
523  _(HIP) \
524  _(SHIM6)
525 
527 ip6_ext_hdr (u8 nexthdr)
528 {
529 #ifdef CLIB_HAVE_VEC128
530  static const u8x16 ext_hdr_types = {
531 #define _(x) IP_PROTOCOL_##x,
533 #undef _
534  };
535 
536  return !u8x16_is_all_zero (ext_hdr_types == u8x16_splat (nexthdr));
537 #else
538  /*
539  * find out if nexthdr is an extension header or a protocol
540  */
541  return 0
542 #define _(x) || (nexthdr == IP_PROTOCOL_##x)
544 #undef _
545 #endif
546 }
547 
548 #define ip6_ext_header_len(p) ((((ip6_ext_header_t *)(p))->n_data_u64s+1) << 3)
549 #define ip6_ext_authhdr_len(p) ((((ip6_ext_header_t *)(p))->n_data_u64s+2) << 2)
550 
551 always_inline void *
552 ip6_ext_next_header (ip6_ext_header_t * ext_hdr)
553 {
554  return (void *) ((u8 *) ext_hdr + ip6_ext_header_len (ext_hdr));
555 }
556 
557 always_inline int
559  void *obj, size_t len)
560 {
561  u8 *o = obj;
562  if (o < b->data ||
563  o + len > b->data + vlib_buffer_get_default_data_size (vm))
564  return 0;
565  return 1;
566 }
567 
568 /*
569  * find ipv6 extension header within ipv6 header within buffer b
570  *
571  * @param vm
572  * @param b buffer to limit search to
573  * @param ip6_header ipv6 header
574  * @param header_type extension header type to search for
575  * @param[out] prev_ext_header address of header preceding found header
576  */
577 always_inline void *
579  ip6_header_t * ip6_header, u8 header_type,
580  ip6_ext_header_t ** prev_ext_header)
581 {
582  ip6_ext_header_t *prev = NULL;
583  ip6_ext_header_t *result = NULL;
584  if ((ip6_header)->protocol == header_type)
585  {
586  result = (void *) (ip6_header + 1);
587  if (!vlib_object_within_buffer_data (vm, b, result,
588  ip6_ext_header_len (result)))
589  {
590  result = NULL;
591  }
592  }
593  else
594  {
595  result = NULL;
596  prev = (void *) (ip6_header + 1);
597  while (ip6_ext_hdr (prev->next_hdr) && prev->next_hdr != header_type)
598  {
599  prev = ip6_ext_next_header (prev);
600  if (!vlib_object_within_buffer_data (vm, b, prev,
601  ip6_ext_header_len (prev)))
602  {
603  prev = NULL;
604  break;
605  }
606  }
607  if (prev && (prev->next_hdr == header_type))
608  {
609  result = ip6_ext_next_header (prev);
610  if (!vlib_object_within_buffer_data (vm, b, result,
611  ip6_ext_header_len (result)))
612  {
613  result = NULL;
614  }
615  }
616  }
617  if (prev_ext_header)
618  {
619  *prev_ext_header = prev;
620  }
621  return result;
622 }
623 
624 /* *INDENT-OFF* */
625 typedef CLIB_PACKED (struct {
626  u8 next_hdr;
627  /* Length of this header plus option data in 8 byte units. */
628  u8 n_data_u64s;
629  u8 data[0];
630 }) ip6_hop_by_hop_ext_t;
631 /* *INDENT-ON* */
632 
633 /* *INDENT-OFF* */
634 typedef CLIB_PACKED (struct {
635  u8 next_hdr;
636  u8 rsv;
637  u16 fragment_offset_and_more;
638  u32 identification;
639 }) ip6_frag_hdr_t;
640 /* *INDENT-ON* */
641 
642 #define ip6_frag_hdr_offset(hdr) \
643  (clib_net_to_host_u16((hdr)->fragment_offset_and_more) >> 3)
644 
645 #define ip6_frag_hdr_offset_bytes(hdr) \
646  (8 * ip6_frag_hdr_offset(hdr))
647 
648 #define ip6_frag_hdr_more(hdr) \
649  (clib_net_to_host_u16((hdr)->fragment_offset_and_more) & 0x1)
650 
651 #define ip6_frag_hdr_offset_and_more(offset, more) \
652  clib_host_to_net_u16(((offset) << 3) + !!(more))
653 
654 #endif /* included_ip6_packet_h */
655 
656 /*
657  * fd.io coding-style-patch-verification: ON
658  *
659  * Local Variables:
660  * eval: (c-set-style "gnu")
661  * End:
662  */
static ip_dscp_t ip6_traffic_class(const ip6_header_t *i)
Definition: ip6_packet.h:387
typedef CLIB_PACKED(struct { ip6_address_t ip6_addr;u32 fib_index;}) ip6_address_fib_t
#define foreach_ip6_multicast_link_local_group_id
Definition: ip6_packet.h:164
typedef address
Definition: ip_types.api:83
u8 pad[3]
log2 (size of the packing page block)
Definition: bihash_doc.h:61
static_always_inline void ip6_set_traffic_class_network_order(ip6_header_t *ip6, ip_dscp_t dscp)
Definition: ip6_packet.h:400
static int vlib_object_within_buffer_data(vlib_main_t *vm, vlib_buffer_t *b, void *obj, size_t len)
Definition: ip6_packet.h:558
a
Definition: bitmap.h:538
ip6_multicast_address_scope_t
Definition: ip6_packet.h:172
u64 as_u64
Definition: bihash_doc.h:63
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
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
static void ip6_copy_header(ip6_header_t *dst, const ip6_header_t *src)
Definition: ip6_packet.h:416
static_always_inline ip_dscp_t ip6_traffic_class_network_order(const ip6_header_t *ip6)
Definition: ip6_packet.h:393
vl_api_address_t src
Definition: gre.api:51
static void * ip6_ext_next_header(ip6_ext_header_t *ext_hdr)
Definition: ip6_packet.h:552
int i
static uword ip6_address_is_local_unicast(const ip6_address_t *a)
Definition: ip6_packet.h:333
u8 data[128]
Definition: ipsec.api:251
static uword ip4_address_is_multicast(const ip4_address_t *a)
Definition: ip4_packet.h:318
static void ip6_address_mask(ip6_address_t *a, const ip6_address_t *mask)
Definition: ip6_packet.h:268
struct _tcp_header tcp_header_t
vhost_vring_addr_t addr
Definition: vhost_user.h:147
ip6_address_t src_address
Definition: ip6_packet.h:383
static u32 ip6_address_hash_to_u32(const ip6_address_t *a)
Definition: ip6_packet.h:356
unsigned char u8
Definition: types.h:56
uword as_uword[16/sizeof(uword)]
Definition: ip6_packet.h:52
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip6_packet.h:193
static u64 ip6_address_hash_to_u64(const ip6_address_t *a)
Definition: ip6_packet.h:362
#define static_always_inline
Definition: clib.h:100
#define always_inline
Definition: clib.h:99
#define foreach_ip6_multicast_address_scope
Definition: ip6_packet.h:156
unsigned int u32
Definition: types.h:88
static void * ip6_ext_header_find(vlib_main_t *vm, vlib_buffer_t *b, ip6_header_t *ip6_header, u8 header_type, ip6_ext_header_t **prev_ext_header)
Definition: ip6_packet.h:578
vl_api_fib_path_type_t type
Definition: fib_types.api:123
#define foreach_ext_hdr_type
Definition: ip6_packet.h:515
static_always_inline int ip46_address_is_equal_v6(const ip46_address_t *ip46, const ip6_address_t *ip6)
Definition: ip6_packet.h:106
ip6_address_t mask
Definition: ip6_packet.h:58
vl_api_ip_proto_t protocol
Definition: punt.api:39
unsigned short u16
Definition: types.h:57
vl_api_address_t dst
Definition: gre.api:52
static uword ip6_address_is_equal_masked(const ip6_address_t *a, const ip6_address_t *b, const ip6_address_t *mask)
Definition: ip6_packet.h:250
u8 len
Definition: ip_types.api:90
#define ip6_ext_header_len(p)
Definition: ip6_packet.h:548
#define ip46_address_is_ip4(ip46)
Definition: ip6_packet.h:88
u32 as_u32[4]
Definition: ip6_packet.h:50
static_always_inline u32 vlib_buffer_get_default_data_size(vlib_main_t *vm)
Definition: buffer_funcs.h:96
static void ip6_tcp_reply_x2(ip6_header_t *ip0, ip6_header_t *ip1, tcp_header_t *tcp0, tcp_header_t *tcp1)
Definition: ip6_packet.h:453
vlib_main_t * vm
Definition: buffer.c:323
static void ip6_address_set_zero(ip6_address_t *a)
Definition: ip6_packet.h:276
static uword ip6_address_is_zero(const ip6_address_t *a)
Definition: ip6_packet.h:299
u8 data[]
Packet data.
Definition: buffer.h:181
static_always_inline void ip46_address_copy(ip46_address_t *dst, const ip46_address_t *src)
Definition: ip6_packet.h:114
static uword ip6_address_is_loopback(const ip6_address_t *a)
Definition: ip6_packet.h:317
#define ARRAY_LEN(x)
Definition: clib.h:63
static void * ip6_next_header(ip6_header_t *i)
Definition: ip6_packet.h:410
static u8 ip6_ext_hdr(u8 nexthdr)
Definition: ip6_packet.h:527
static ip46_address_t to_ip46(u32 is_ipv6, u8 *buf)
Definition: ip6_packet.h:128
u8 value
Definition: qos.api:53
#define ASSERT(truth)
enum ip_dscp_t_ ip_dscp_t
#define ip46_address_set_ip4(ip46, ip)
Definition: ip6_packet.h:90
ip46_type_t
Definition: ip6_packet.h:70
static void ip6_addr_fib_init(ip6_address_fib_t *addr_fib, const ip6_address_t *address, u32 fib_index)
Definition: ip6_packet.h:140
ip6_multicast_link_local_group_id_t
Definition: ip6_packet.h:179
static uword ip6_address_is_link_local_unicast(const ip6_address_t *a)
Definition: ip6_packet.h:326
static uword ip6_address_is_equal(const ip6_address_t *a, const ip6_address_t *b)
Definition: ip6_packet.h:240
static_always_inline void ip46_address_set_ip6(ip46_address_t *dst, const ip6_address_t *src)
Definition: ip6_packet.h:121
static uword ip6_address_is_multicast(const ip6_address_t *a)
Definition: ip6_packet.h:187
u32 ip_version_traffic_class_and_flow_label
Definition: ip6_packet.h:370
u16 payload_length
Definition: ip6_packet.h:374
static uword ip6_address_is_global_unicast(const ip6_address_t *a)
Definition: ip6_packet.h:340
vl_api_address_t ip
Definition: l2.api:489
static void ip6_set_solicited_node_multicast_address(ip6_address_t *a, u32 id)
Definition: ip6_packet.h:217
VLIB buffer representation.
Definition: buffer.h:102
u64 uword
Definition: types.h:112
static void ip6_address_copy(ip6_address_t *dst, const ip6_address_t *src)
Definition: ip6_packet.h:200
static void ip6_address_mask_from_width(ip6_address_t *a, u32 width)
Definition: ip6_packet.h:284
static uword ip6_address_is_unspecified(const ip6_address_t *a)
Definition: ip6_packet.h:310
static_always_inline int ip46_address_is_equal_v4(const ip46_address_t *ip46, const ip4_address_t *ip4)
Definition: ip6_packet.h:99
static void ip6_tcp_reply_x1(ip6_header_t *ip0, tcp_header_t *tcp0)
Definition: ip6_packet.h:431
u16 as_u16[8]
Definition: ip6_packet.h:49
static void ip6_multicast_ethernet_address(u8 *ethernet_address, u32 group_id)
Definition: ip6_packet.h:229
static uword ip6_is_solicited_node_multicast_address(const ip6_address_t *a)
Definition: ip6_packet.h:347
vl_api_gbp_scope_t scope
Definition: gbp.api:73
ip6_address_t dst_address
Definition: ip6_packet.h:383
static void ip6_set_reserved_multicast_address(ip6_address_t *a, ip6_multicast_address_scope_t scope, u16 id)
Definition: ip6_packet.h:207