FD.io VPP  v17.04.2-2-ga8f93f8
Vector Packet Processing
map.h
Go to the documentation of this file.
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 #include <stdbool.h>
16 #include <vppinfra/error.h>
17 #include <vnet/vnet.h>
18 #include <vnet/ip/ip.h>
19 #include <vlib/vlib.h>
20 #include <vnet/fib/fib_types.h>
21 #include <vnet/fib/ip4_fib.h>
22 #include <vnet/adj/adj.h>
23 #include <vnet/map/map_dpo.h>
24 #include <vnet/dpo/load_balance.h>
25 
26 #define MAP_SKIP_IP6_LOOKUP 1
27 
28 typedef enum
29 {
32 } map_dir_e;
33 
34 int map_create_domain (ip4_address_t * ip4_prefix, u8 ip4_prefix_len,
35  ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
36  ip6_address_t * ip6_src, u8 ip6_src_len,
37  u8 ea_bits_len, u8 psid_offset, u8 psid_length,
38  u32 * map_domain_index, u16 mtu, u8 flags);
39 int map_delete_domain (u32 map_domain_index);
40 int map_add_del_psid (u32 map_domain_index, u16 psid, ip6_address_t * tep,
41  u8 is_add);
42 u8 *format_map_trace (u8 * s, va_list * args);
43 i32 ip4_get_port (ip4_header_t * ip, map_dir_e dir, u16 buffer_len);
44 i32 ip6_get_port (ip6_header_t * ip6, map_dir_e dir, u16 buffer_len);
45 u16 ip4_map_get_port (ip4_header_t * ip, map_dir_e dir);
46 
47 typedef enum __attribute__ ((__packed__))
48 {
49  MAP_DOMAIN_PREFIX = 1 << 0, MAP_DOMAIN_TRANSLATION = 1 << 1, // The domain uses MAP-T
51 
52 /**
53  * IP4 reassembly logic:
54  * One virtually reassembled flow requires a map_ip4_reass_t structure in order
55  * to keep the first-fragment port number and, optionally, cache out of sequence
56  * packets.
57  * There are up to MAP_IP4_REASS_MAX_REASSEMBLY such structures.
58  * When in use, those structures are stored in a hash table of MAP_IP4_REASS_BUCKETS buckets.
59  * When a new structure needs to be used, it is allocated from available ones.
60  * If there is no structure available, the oldest in use is selected and used if and
61  * only if it was first allocated more than MAP_IP4_REASS_LIFETIME seconds ago.
62  * In case no structure can be allocated, the fragment is dropped.
63  */
64 
65 #define MAP_IP4_REASS_LIFETIME_DEFAULT (100) /* ms */
66 #define MAP_IP4_REASS_HT_RATIO_DEFAULT (1.0)
67 #define MAP_IP4_REASS_POOL_SIZE_DEFAULT 1024 // Number of reassembly structures
68 #define MAP_IP4_REASS_BUFFERS_DEFAULT 2048
69 
70 #define MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY 5 // Number of fragment per reassembly
71 
72 #define MAP_IP6_REASS_LIFETIME_DEFAULT (100) /* ms */
73 #define MAP_IP6_REASS_HT_RATIO_DEFAULT (1.0)
74 #define MAP_IP6_REASS_POOL_SIZE_DEFAULT 1024 // Number of reassembly structures
75 #define MAP_IP6_REASS_BUFFERS_DEFAULT 2048
76 
77 #define MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY 5
78 
79 #define MAP_IP6_REASS_COUNT_BYTES
80 #define MAP_IP4_REASS_COUNT_BYTES
81 
82 //#define IP6_MAP_T_OVERRIDE_TOS 0
83 
84 /*
85  * This structure _MUST_ be no larger than a single cache line (64 bytes).
86  * If more space is needed make a union of ip6_prefix and *rules, those are mutually exclusive.
87  */
88 typedef struct
89 {
103 
104  /* helpers */
108 
109  /* not used by forwarding */
111 } map_domain_t;
112 
114  "MAP domain fits in one cacheline");
115 
116 #define MAP_REASS_INDEX_NONE ((u16)0xffff)
117 
118 /*
119  * Hash key, padded out to 16 bytes for fast compare
120  */
121 /* *INDENT-OFF* */
122 typedef union {
123  CLIB_PACKED (struct {
124  ip4_address_t src;
125  ip4_address_t dst;
126  u16 fragment_id;
127  u8 protocol;
128  });
130  u32 as_u32[4];
132 /* *INDENT-ON* */
133 
134 typedef struct
135 {
138 #ifdef MAP_IP4_REASS_COUNT_BYTES
141 #endif
149 
150 /*
151  * MAP domain counters
152  */
153 typedef enum
154 {
155  /* Simple counters */
157  /* Combined counters */
162 
163 /*
164  * main_main_t
165  */
166 /* *INDENT-OFF* */
167 typedef union {
168  CLIB_PACKED (struct {
169  ip6_address_t src;
170  ip6_address_t dst;
171  u32 fragment_id;
172  u8 protocol;
173  });
175  u32 as_u32[10];
177 /* *INDENT-OFF* */
178 
179 typedef struct {
180  u32 pi; //Cached packet or ~0
181  u16 next_data_offset; //The data offset of the additional 20 bytes or ~0
182  u8 next_data_len; //Number of bytes ready to be copied (20 if not last fragment)
183  u8 next_data[20]; //The 20 additional bytes
185 
186 typedef struct {
189 #ifdef MAP_IP6_REASS_COUNT_BYTES
192 #endif
193  u16 bucket; //What hash bucket this element is linked in
200 
201 #ifdef MAP_SKIP_IP6_LOOKUP
202 /**
203  * A pre-resolved next-hop
204  */
206 {
207  /**
208  * Linkage into the FIB graph
209  */
211 
212  /**
213  * The FIB entry index of the next-hop
214  */
216 
217  /**
218  * This object sibling index on the FIB entry's child dependency list
219  */
221 
222  /**
223  * The Load-balance object index to use to forward
224  */
227 
228 /**
229  * Pre-resolved next hops for v4 and v6. Why these are global and not
230  * per-domain is beyond me.
231  */
232 extern map_main_pre_resolved_t pre_resolved[FIB_PROTOCOL_MAX];
233 #endif
234 
235 typedef struct {
236  /* pool of MAP domains */
238 
239  /* MAP Domain packet/byte counters indexed by map domain index */
242  volatile u32 *counter_lock;
243 
244  /* Traffic class: zero, copy (~0) or fixed value */
246  bool tc_copy;
247 
248  bool sec_check; /* Inbound security check */
249  bool sec_check_frag; /* Inbound security check for (subsequent) fragments */
250  bool icmp6_enabled; /* Send destination unreachable for security check failure */
251 
252  /* ICMPv6 -> ICMPv4 relay parameters */
255 
256  /* convenience */
259 
260  /*
261  * IPv4 encap and decap reassembly
262  */
263  /* Configuration */
264  f32 ip4_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
265  u16 ip4_reass_conf_pool_size; //Max number of allocated reass structures
266  u16 ip4_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
267  u32 ip4_reass_conf_buffers; //Maximum number of buffers used by ip4 reassembly
268 
269  /* Runtime */
271  u8 ip4_reass_ht_log2len; //Hash table size is 2^log2len
275  volatile u32 *ip4_reass_lock;
276 
277  /* Counters */
279 
280  bool frag_inner; /* Inner or outer fragmentation */
281  bool frag_ignore_df; /* Fragment (outer) packet even if DF is set */
282 
283  /*
284  * IPv6 decap reassembly
285  */
286  /* Configuration */
287  f32 ip6_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
288  u16 ip6_reass_conf_pool_size; //Max number of allocated reass structures
289  u16 ip6_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
290  u32 ip6_reass_conf_buffers; //Maximum number of buffers used by ip6 reassembly
291 
292  /* Runtime */
294  u8 ip6_reass_ht_log2len; //Hash table size is 2^log2len
298  volatile u32 *ip6_reass_lock;
299 
300  /* Counters */
302 
303 } map_main_t;
304 
305 /*
306  * MAP Error counters/messages
307  */
308 #define foreach_map_error \
309  /* Must be first. */ \
310  _(NONE, "valid MAP packets") \
311  _(BAD_PROTOCOL, "bad protocol") \
312  _(SEC_CHECK, "security check failed") \
313  _(ENCAP_SEC_CHECK, "encap security check failed") \
314  _(DECAP_SEC_CHECK, "decap security check failed") \
315  _(ICMP, "unable to translate ICMP") \
316  _(ICMP_RELAY, "unable to relay ICMP") \
317  _(UNKNOWN, "unknown") \
318  _(NO_BINDING, "no binding") \
319  _(NO_DOMAIN, "no domain") \
320  _(FRAGMENTED, "packet is a fragment") \
321  _(FRAGMENT_MEMORY, "could not cache fragment") \
322  _(FRAGMENT_MALFORMED, "fragment has unexpected format")\
323  _(FRAGMENT_DROPPED, "dropped cached fragment") \
324  _(MALFORMED, "malformed packet") \
325  _(DF_SET, "can't fragment, DF set")
326 
327 typedef enum {
328 #define _(sym,str) MAP_ERROR_##sym,
330 #undef _
332  } map_error_t;
333 
334 u64 map_error_counter_get(u32 node_index, map_error_t map_error);
335 
336 typedef struct {
339 } map_trace_t;
340 
342 
345 
350 
355 
356 /*
357  * map_get_pfx
358  */
361 {
362  u16 psid = (port >> d->psid_shift) & d->psid_mask;
363 
364  if (d->ea_bits_len == 0 && d->rules)
365  return clib_net_to_host_u64(d->rules[psid].as_u64[0]);
366 
367  u32 suffix = (addr >> d->suffix_shift) & d->suffix_mask;
368  u64 ea = d->ea_bits_len == 0 ? 0 : (((u64) suffix << d->psid_length)) | psid;
369 
370  return clib_net_to_host_u64(d->ip6_prefix.as_u64[0]) | ea << d->ea_shift;
371 }
372 
375 {
376  return clib_host_to_net_u64(map_get_pfx(d, clib_net_to_host_u32(addr),
377  clib_net_to_host_u16(port)));
378 }
379 
380 /*
381  * map_get_sfx
382  */
385 {
386  u16 psid = (port >> d->psid_shift) & d->psid_mask;
387 
388  /* Shared 1:1 mode. */
389  if (d->ea_bits_len == 0 && d->rules)
390  return clib_net_to_host_u64(d->rules[psid].as_u64[1]);
391  if (d->ip6_prefix_len == 128)
392  return clib_net_to_host_u64(d->ip6_prefix.as_u64[1]);
393 
394  /* IPv4 prefix */
395  if (d->flags & MAP_DOMAIN_PREFIX)
396  return (u64) (addr & (0xFFFFFFFF << d->suffix_shift)) << 16;
397 
398  /* Shared or full IPv4 address */
399  return ((u64) addr << 16) | psid;
400 }
401 
404 {
405  return clib_host_to_net_u64(map_get_sfx(d, clib_net_to_host_u32(addr),
406  clib_net_to_host_u16(port)));
407 }
408 
411 {
412  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]) >> 16);
413 }
414 
415 /*
416  * Get the MAP domain from an IPv4 lookup adjacency.
417  */
420  u32 *map_domain_index)
421 {
422  map_main_t *mm = &map_main;
423  map_dpo_t *md;
424 
425  md = map_dpo_get(mdi);
426 
427  ASSERT(md);
428  *map_domain_index = md->md_domain;
429  return pool_elt_at_index(mm->domains, *map_domain_index);
430 }
431 
432 /*
433  * Get the MAP domain from an IPv6 lookup adjacency.
434  * If the IPv6 address or prefix is not shared, no lookup is required.
435  * The IPv4 address is used otherwise.
436  */
439  u32 *map_domain_index, u8 *error)
440 {
441  map_main_t *mm = &map_main;
442  map_dpo_t *md;
443 
444  /*
445  * Disable direct MAP domain lookup on decap, until the security check is updated to verify IPv4 SA.
446  * (That's done implicitly when MAP domain is looked up in the IPv4 FIB)
447  */
448 #ifdef MAP_NONSHARED_DOMAIN_ENABLED
449  md = map_dpo_get(mdi);
450 
451  ASSERT(md);
452  *map_domain_index = md->md_domain;
453  if (*map_domain_index != ~0)
454  return pool_elt_at_index(mm->domains, *map_domain_index);
455 #endif
456 
457  u32 lbi = ip4_fib_forwarding_lookup(0, addr);
458  const dpo_id_t *dpo = load_balance_get_bucket(lbi, 0);
459  if (PREDICT_TRUE(dpo->dpoi_type == map_dpo_type ||
460  dpo->dpoi_type == map_t_dpo_type))
461  {
462  md = map_dpo_get(dpo->dpoi_index);
463  *map_domain_index = md->md_domain;
464  return pool_elt_at_index(mm->domains, *map_domain_index);
465  }
466  *error = MAP_ERROR_NO_DOMAIN;
467  return NULL;
468 }
469 
471 map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id,
472  u8 protocol, u32 **pi_to_drop);
473 void
474 map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop);
475 
476 #define map_ip4_reass_lock() while (__sync_lock_test_and_set(map_main.ip4_reass_lock, 1)) {}
477 #define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0)
478 
481 {
482  int i;
484  if(r->fragments[i] != ~0) {
485  vec_add1(*pi, r->fragments[i]);
486  r->fragments[i] = ~0;
487  map_main.ip4_reass_buffered_counter--;
488  }
489 }
490 
492 
494 map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id,
495  u8 protocol, u32 **pi_to_drop);
496 void
497 map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop);
498 
499 #define map_ip6_reass_lock() while (__sync_lock_test_and_set(map_main.ip6_reass_lock, 1)) {}
500 #define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0)
501 
502 int
504  u16 data_offset, u16 next_data_offset,
505  u8 *data_start, u16 data_len);
506 
507 void map_ip4_drop_pi(u32 pi);
508 
509 int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
510 #define MAP_IP4_REASS_CONF_HT_RATIO_MAX 100
511 int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
512 #define MAP_IP4_REASS_CONF_POOL_SIZE_MAX (0xfeff)
513 int map_ip4_reass_conf_lifetime(u16 lifetime_ms);
514 #define MAP_IP4_REASS_CONF_LIFETIME_MAX 0xffff
515 int map_ip4_reass_conf_buffers(u32 buffers);
516 #define MAP_IP4_REASS_CONF_BUFFERS_MAX (0xffffffff)
517 
518 void map_ip6_drop_pi(u32 pi);
519 
520 
521 int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
522 #define MAP_IP6_REASS_CONF_HT_RATIO_MAX 100
523 int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
524 #define MAP_IP6_REASS_CONF_POOL_SIZE_MAX (0xfeff)
525 int map_ip6_reass_conf_lifetime(u16 lifetime_ms);
526 #define MAP_IP6_REASS_CONF_LIFETIME_MAX 0xffff
527 int map_ip6_reass_conf_buffers(u32 buffers);
528 #define MAP_IP6_REASS_CONF_BUFFERS_MAX (0xffffffff)
529 
531 int ip6_parse(const ip6_header_t *ip6, u32 buff_len,
532  u8 *l4_protocol, u16 *l4_offset, u16 *frag_hdr_offset)
533 {
534  if (ip6->protocol == IP_PROTOCOL_IPV6_FRAGMENTATION) {
535  *l4_protocol = ((ip6_frag_hdr_t *)(ip6 + 1))->next_hdr;
536  *frag_hdr_offset = sizeof(*ip6);
537  *l4_offset = sizeof(*ip6) + sizeof(ip6_frag_hdr_t);
538  } else {
539  *l4_protocol = ip6->protocol;
540  *frag_hdr_offset = 0;
541  *l4_offset = sizeof(*ip6);
542  }
543 
544  return (buff_len < (*l4_offset + 4)) ||
545  (clib_net_to_host_u16(ip6->payload_length) < (*l4_offset + 4 - sizeof(*ip6)));
546 }
547 
548 
549 #define u8_ptr_add(ptr, index) (((u8 *)ptr) + index)
550 #define u16_net_add(u, val) clib_host_to_net_u16(clib_net_to_host_u16(u) + (val))
551 
552 #define frag_id_6to4(id) ((id) ^ ((id) >> 16))
553 
556  ip6_address_t *ip6, const ip4_address_t *ip4)
557 {
558  ASSERT(d->ip6_src_len == 96); //No support for other lengths for now
559  ip6->as_u64[0] = d->ip6_src.as_u64[0];
560  ip6->as_u32[2] = d->ip6_src.as_u32[2];
561  ip6->as_u32[3] = ip4->as_u32;
562 }
563 
566 {
567  ASSERT(d->ip6_src_len == 96); //No support for other lengths for now
568  return addr->as_u32[3];
569 }
570 
571 static inline void
573 {
574  if (mm->counter_lock)
575  while (__sync_lock_test_and_set(mm->counter_lock, 1))
576  /* zzzz */ ;
577 }
578 static inline void
580 {
581  if (mm->counter_lock)
582  *mm->counter_lock = 0;
583 }
584 
585 
589  u32 next)
590 {
591  u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
592  //Deal with fragments that are ready
593  from = pi_vector;
594  n_left_from = vec_len(pi_vector);
595  next_index = node->cached_next_index;
596  while (n_left_from > 0) {
597  vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
598  while (n_left_from > 0 && n_left_to_next > 0) {
599  u32 pi0 = to_next[0] = from[0];
600  from += 1;
601  n_left_from -= 1;
602  to_next += 1;
603  n_left_to_next -= 1;
604  vlib_buffer_t *p0 = vlib_get_buffer(vm, pi0);
605  p0->error = *error;
606  vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next);
607  }
608  vlib_put_next_frame(vm, node, next_index, n_left_to_next);
609  }
610 }
611 
612 /*
613  * fd.io coding-style-patch-verification: ON
614  *
615  * Local Variables:
616  * eval: (c-set-style "gnu")
617  * End:
618  */
static map_dpo_t * map_dpo_get(index_t index)
Definition: map_dpo.h:60
u16 forwarded
Definition: map.h:191
map_ip6_reass_t * map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id, u8 protocol, u32 **pi_to_drop)
Definition: map.c:1764
i32 ip4_get_port(ip4_header_t *ip, map_dir_e dir, u16 buffer_len)
Definition: map.c:80
u8 psid_length
Definition: map.h:102
map_ip4_reass_t * ip4_reass_pool
Definition: map.h:270
int map_ip4_reass_add_fragment(map_ip4_reass_t *r, u32 pi)
Definition: map.c:1673
u32 ip4_reass_conf_buffers
Definition: map.h:267
fib_node_t node
Linkage into the FIB graph.
Definition: map.h:210
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:343
map_domain_flags_e flags
Definition: map.h:97
u16 fifo_prev
Definition: map.h:195
vlib_node_registration_t ip4_map_t_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_node)
Definition: ip4_map_t.c:1337
static_always_inline u64 map_get_pfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:360
u16 ip4_reass_allocated
Definition: map.h:272
volatile u32 * ip6_reass_lock
Definition: map.h:298
volatile u32 * counter_lock
Definition: map.h:242
u8 ip4_reass_ht_log2len
Definition: map.h:271
u32 fragments[MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY]
Definition: map.h:147
vlib_node_registration_t ip4_map_t_icmp_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_icmp_node)
Definition: ip4_map_t.c:1297
u16 bucket_next
Definition: map.h:194
u64 as_u64
Definition: bihash_doc.h:63
#define PREDICT_TRUE(x)
Definition: clib.h:98
u64 as_u64[2]
Definition: ip6_packet.h:51
map_error_t
Definition: map.h:327
dpo_id_t dpo
The Load-balance object index to use to forward.
Definition: map.h:225
#define NULL
Definition: clib.h:55
int map_ip4_reass_conf_buffers(u32 buffers)
Definition: map.c:1996
void vlib_put_next_frame(vlib_main_t *vm, vlib_node_runtime_t *r, u32 next_index, u32 n_vectors_left)
Release pointer to next frame vector data.
Definition: main.c:459
static_always_inline int ip6_parse(const ip6_header_t *ip6, u32 buff_len, u8 *l4_protocol, u16 *l4_offset, u16 *frag_hdr_offset)
Definition: map.h:531
vlib_main_t * vlib_main
Definition: map.h:257
int map_ip6_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:2072
u8 tc
Definition: map.h:245
int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1957
A pre-resolved next-hop.
Definition: map.h:205
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:522
static void map_domain_counter_unlock(map_main_t *mm)
Definition: map.h:579
struct _vlib_node_registration vlib_node_registration_t
u32 suffix_mask
Definition: map.h:93
bool sec_check_frag
Definition: map.h:249
u32 ip4_reass_buffered_counter
Definition: map.h:278
u16 ip4_reass_fifo_last
Definition: map.h:274
map_ip6_reass_t * ip6_reass_pool
Definition: map.h:293
u16 port
Definition: map.h:338
vlib_node_registration_t ip6_map_t_tcp_udp_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_tcp_udp_node)
Definition: ip6_map_t.c:1471
float f32
Definition: types.h:143
static_always_inline void ip4_map_t_embedded_address(map_domain_t *d, ip6_address_t *ip6, const ip4_address_t *ip4)
Definition: map.h:555
#define MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY
Definition: map.h:70
static_always_inline u32 ip6_map_t_embedded_address(map_domain_t *d, ip6_address_t *addr)
Definition: map.h:565
bool tc_copy
Definition: map.h:246
#define static_always_inline
Definition: clib.h:85
map_ip4_reass_key_t key
Definition: map.h:136
u16 bucket
Definition: map.h:193
vlib_combined_counter_main_t * domain_counters
Definition: map.h:241
ip4_address_t icmp4_src_address
Definition: map.h:253
int i32
Definition: types.h:81
static_always_inline void map_send_all_to_node(vlib_main_t *vm, u32 *pi_vector, vlib_node_runtime_t *node, vlib_error_t *error, u32 next)
Definition: map.h:587
u16 fifo_next
Definition: map.h:146
vlib_simple_counter_main_t icmp_relayed
Definition: map.h:254
int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1974
ip6_address_t * rules
Definition: map.h:92
unsigned long u64
Definition: types.h:89
int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:2040
u8 ea_bits_len
Definition: map.h:100
A collection of simple counters.
Definition: counter.h:58
u8 ip6_prefix_len
Definition: map.h:98
int map_ip6_reass_conf_buffers(u32 buffers)
Definition: map.c:2079
u16 ip6_reass_allocated
Definition: map.h:295
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:146
map_ip4_reass_t * map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id, u8 protocol, u32 **pi_to_drop)
Definition: map.c:1594
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:397
int map_create_domain(ip4_address_t *ip4_prefix, u8 ip4_prefix_len, ip6_address_t *ip6_prefix, u8 ip6_prefix_len, ip6_address_t *ip6_src, u8 ip6_src_len, u8 ea_bits_len, u8 psid_offset, u8 psid_length, u32 *map_domain_index, u16 mtu, u8 flags)
Definition: map.c:166
dpo_type_t dpoi_type
the type
Definition: dpo.h:150
bool frag_ignore_df
Definition: map.h:281
volatile u32 * ip4_reass_lock
Definition: map.h:275
static_always_inline u64 map_get_pfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:374
static_always_inline map_domain_t * ip6_map_get_domain(u32 mdi, ip4_address_t *addr, u32 *map_domain_index, u8 *error)
Definition: map.h:438
u16 ip4_reass_conf_pool_size
Definition: map.h:265
map_domain_t * domains
Definition: map.h:237
int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:2057
u16 bucket
Definition: map.h:143
static_always_inline u64 map_get_sfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:403
u16 * ip6_reass_hash_table
Definition: map.h:296
u16 * ip4_reass_hash_table
Definition: map.h:273
u32 vlib_error_t
Definition: error.h:44
map_main_t map_main
Definition: map.h:341
#define vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, bi0, next0)
Finish enqueueing one buffer forward in the graph.
Definition: buffer_node.h:216
An node in the FIB graph.
Definition: fib_node.h:277
u8 ip6_src_len
Definition: map.h:99
#define vlib_get_next_frame(vm, node, next_index, vectors, n_vectors_left)
Get pointer to next frame vector data by (vlib_node_runtime_t, next_index).
Definition: node_funcs.h:350
u8 psid_shift
Definition: map.h:105
dpo_type_t map_dpo_type
The register MAP DPO type.
Definition: map_dpo.c:27
const dpo_id_t * load_balance_get_bucket(index_t lbi, u32 bucket)
Definition: load_balance.c:282
u16 expected_total
Definition: map.h:139
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:113
vlib_node_registration_t ip4_map_t_tcp_udp_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_tcp_udp_node)
Definition: ip4_map_t.c:1317
u8 suffix_shift
Definition: map.h:106
vlib_node_registration_t ip4_map_t_fragmented_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_fragmented_node)
Definition: ip4_map_t.c:1277
u8 ip6_reass_ht_log2len
Definition: map.h:294
u32 as_u32[4]
Definition: ip6_packet.h:50
u16 ip6_reass_fifo_last
Definition: map.h:297
u16 ip6_reass_conf_pool_size
Definition: map.h:288
map_dir_e
Definition: map.h:28
u8 next_data_len
Definition: map.h:182
void map_ip4_drop_pi(u32 pi)
Definition: ip6_map.c:659
ip4_address_t ip4_prefix
Definition: map.h:94
u16 next_data_offset
Definition: map.h:181
static_always_inline void map_ip4_reass_get_fragments(map_ip4_reass_t *r, u32 **pi)
Definition: map.h:480
vlib_main_t * vm
Definition: buffer.c:276
vlib_node_registration_t ip6_map_t_icmp_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_icmp_node)
Definition: ip6_map_t.c:1451
u8 psid_offset
Definition: map.h:101
void map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1712
u16 forwarded
Definition: map.h:140
bool icmp6_enabled
Definition: map.h:250
u32 sibling
This object sibling index on the FIB entry&#39;s child dependency list.
Definition: map.h:220
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:28
map_domain_counter_t
Definition: map.h:153
map_ip6_reass_key_t key
Definition: map.h:187
#define foreach_map_error
Definition: map.h:308
ip6_address_t ip6_src
Definition: map.h:90
static void map_domain_counter_lock(map_main_t *mm)
Definition: map.h:572
f32 ip4_reass_conf_ht_ratio
Definition: map.h:264
A representation of a MAP DPO.
Definition: map_dpo.h:25
vlib_node_registration_t ip4_map_node
(constructor) VLIB_REGISTER_NODE (ip4_map_node)
Definition: ip4_map.c:754
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:455
#define ASSERT(truth)
vlib_node_registration_t ip6_map_node
(constructor) VLIB_REGISTER_NODE (ip6_map_node)
Definition: ip6_map.c:1176
unsigned int u32
Definition: types.h:88
bool sec_check
Definition: map.h:248
bool frag_inner
Definition: map.h:280
u16 psid_mask
Definition: map.h:95
STATIC_ASSERT((sizeof(map_domain_t)<=CLIB_CACHE_LINE_BYTES),"MAP domain fits in one cacheline")
static index_t ip4_fib_forwarding_lookup(u32 fib_index, const ip4_address_t *addr)
Definition: ip4_fib.h:128
ip4_header_t ip4_header
Definition: map.h:197
u16 ip4_map_get_port(ip4_header_t *ip, map_dir_e dir)
Definition: ip4_map.c:69
u8 ea_shift
Definition: map.h:107
void map_ip6_drop_pi(u32 pi)
Definition: ip6_map.c:650
ip6_address_t ip6_prefix
Definition: map.h:91
f32 ip6_reass_conf_ht_ratio
Definition: map.h:287
u8 * format_map_trace(u8 *s, va_list *args)
Definition: map.c:1514
vnet_main_t * vnet_main
Definition: map.h:258
i32 ip6_get_port(ip6_header_t *ip6, map_dir_e dir, u16 buffer_len)
Definition: map.c:124
unsigned short u16
Definition: types.h:57
u16 mtu
Definition: map.h:96
u16 payload_length
Definition: ip6_packet.h:332
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:162
static_always_inline u32 map_get_ip4(ip6_address_t *addr)
Definition: map.h:410
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
double f64
Definition: types.h:142
u16 ip6_reass_conf_lifetime_ms
Definition: map.h:289
unsigned char u8
Definition: types.h:56
fib_node_index_t fei
The FIB entry index of the next-hop.
Definition: map.h:215
i32 port
Definition: map.h:142
dpo_type_t map_t_dpo_type
Definition: map_dpo.c:28
A collection of combined counters.
Definition: counter.h:180
u16 bucket_next
Definition: map.h:144
static_always_inline map_domain_t * ip4_map_get_domain(u32 mdi, u32 *map_domain_index)
Definition: map.h:419
#define FIB_PROTOCOL_MAX
Definition outside of enum so it does not need to be included in non-defaulted switch statements...
Definition: fib_types.h:50
u8 ip4_prefix_len
Definition: map.h:110
vlib_simple_counter_main_t * simple_domain_counters
Definition: map.h:240
u64 map_error_counter_get(u32 node_index, map_error_t map_error)
Definition: map.c:1219
#define MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY
Definition: map.h:77
void map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1551
u16 ip4_reass_conf_lifetime_ms
Definition: map.h:266
int map_delete_domain(u32 map_domain_index)
Definition: map.c:352
static_always_inline u64 map_get_sfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:384
u32 map_domain_index
Definition: map.h:337
int map_add_del_psid(u32 map_domain_index, u16 psid, ip6_address_t *tep, u8 is_add)
Definition: map.c:396
vhost_vring_addr_t addr
Definition: vhost-user.h:84
u16 fifo_prev
Definition: map.h:145
Definition: map.h:30
int map_ip4_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1989
vlib_node_registration_t ip6_map_t_fragmented_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_fragmented_node)
Definition: ip6_map_t.c:1431
vlib_node_registration_t ip6_map_t_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_node)
Definition: ip6_map_t.c:1491
u32 flags
Definition: vhost-user.h:78
u32 ip6_reass_buffered_counter
Definition: map.h:301
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:67
u16 expected_total
Definition: map.h:190
map_domain_flags_e
Definition: map.h:47
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:57
int map_ip6_reass_add_fragment(map_ip6_reass_t *r, u32 pi, u16 data_offset, u16 next_data_offset, u8 *data_start, u16 data_len)
Definition: map.c:1845
struct map_main_pre_resolved_t_ map_main_pre_resolved_t
A pre-resolved next-hop.
u16 fifo_next
Definition: map.h:196
#define CLIB_PACKED(x)
Definition: clib.h:78
u32 ip6_reass_conf_buffers
Definition: map.h:290
u32 md_domain
the MAP domain index
Definition: map_dpo.h:35