FD.io VPP  v17.01-9-ge7dcee4
Vector Packet Processing
map.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 #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 typedef struct {
202  /* pool of MAP domains */
204 
205  /* MAP Domain packet/byte counters indexed by map domain index */
208  volatile u32 *counter_lock;
209 
210 #ifdef MAP_SKIP_IP6_LOOKUP
211  /* pre-presolve */
212  u32 adj6_index, adj4_index;
215 #endif
216 
217  /* Traffic class: zero, copy (~0) or fixed value */
219  bool tc_copy;
220 
221  bool sec_check; /* Inbound security check */
222  bool sec_check_frag; /* Inbound security check for (subsequent) fragments */
223  bool icmp6_enabled; /* Send destination unreachable for security check failure */
224 
225  /* ICMPv6 -> ICMPv4 relay parameters */
228 
229  /* convenience */
232 
233  /*
234  * IPv4 encap and decap reassembly
235  */
236  /* Configuration */
237  f32 ip4_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
238  u16 ip4_reass_conf_pool_size; //Max number of allocated reass structures
239  u16 ip4_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
240  u32 ip4_reass_conf_buffers; //Maximum number of buffers used by ip4 reassembly
241 
242  /* Runtime */
244  u8 ip4_reass_ht_log2len; //Hash table size is 2^log2len
248  volatile u32 *ip4_reass_lock;
249 
250  /* Counters */
252 
253  bool frag_inner; /* Inner or outer fragmentation */
254  bool frag_ignore_df; /* Fragment (outer) packet even if DF is set */
255 
256  /*
257  * IPv6 decap reassembly
258  */
259  /* Configuration */
260  f32 ip6_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
261  u16 ip6_reass_conf_pool_size; //Max number of allocated reass structures
262  u16 ip6_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
263  u32 ip6_reass_conf_buffers; //Maximum number of buffers used by ip6 reassembly
264 
265  /* Runtime */
267  u8 ip6_reass_ht_log2len; //Hash table size is 2^log2len
271  volatile u32 *ip6_reass_lock;
272 
273  /* Counters */
275 
276 } map_main_t;
277 
278 /*
279  * MAP Error counters/messages
280  */
281 #define foreach_map_error \
282  /* Must be first. */ \
283  _(NONE, "valid MAP packets") \
284  _(BAD_PROTOCOL, "bad protocol") \
285  _(SEC_CHECK, "security check failed") \
286  _(ENCAP_SEC_CHECK, "encap security check failed") \
287  _(DECAP_SEC_CHECK, "decap security check failed") \
288  _(ICMP, "unable to translate ICMP") \
289  _(ICMP_RELAY, "unable to relay ICMP") \
290  _(UNKNOWN, "unknown") \
291  _(NO_BINDING, "no binding") \
292  _(NO_DOMAIN, "no domain") \
293  _(FRAGMENTED, "packet is a fragment") \
294  _(FRAGMENT_MEMORY, "could not cache fragment") \
295  _(FRAGMENT_MALFORMED, "fragment has unexpected format")\
296  _(FRAGMENT_DROPPED, "dropped cached fragment") \
297  _(MALFORMED, "malformed packet") \
298  _(DF_SET, "can't fragment, DF set")
299 
300 typedef enum {
301 #define _(sym,str) MAP_ERROR_##sym,
303 #undef _
305  } map_error_t;
306 
307 u64 map_error_counter_get(u32 node_index, map_error_t map_error);
308 
309 typedef struct {
312 } map_trace_t;
313 
315 
318 
323 
328 
329 /*
330  * map_get_pfx
331  */
334 {
335  u16 psid = (port >> d->psid_shift) & d->psid_mask;
336 
337  if (d->ea_bits_len == 0 && d->rules)
338  return clib_net_to_host_u64(d->rules[psid].as_u64[0]);
339 
340  u32 suffix = (addr >> d->suffix_shift) & d->suffix_mask;
341  u64 ea = d->ea_bits_len == 0 ? 0 : (((u64) suffix << d->psid_length)) | psid;
342 
343  return clib_net_to_host_u64(d->ip6_prefix.as_u64[0]) | ea << d->ea_shift;
344 }
345 
348 {
349  return clib_host_to_net_u64(map_get_pfx(d, clib_net_to_host_u32(addr),
350  clib_net_to_host_u16(port)));
351 }
352 
353 /*
354  * map_get_sfx
355  */
358 {
359  u16 psid = (port >> d->psid_shift) & d->psid_mask;
360 
361  /* Shared 1:1 mode. */
362  if (d->ea_bits_len == 0 && d->rules)
363  return clib_net_to_host_u64(d->rules[psid].as_u64[1]);
364  if (d->ip6_prefix_len == 128)
365  return clib_net_to_host_u64(d->ip6_prefix.as_u64[1]);
366 
367  /* IPv4 prefix */
368  if (d->flags & MAP_DOMAIN_PREFIX)
369  return (u64) (addr & (0xFFFFFFFF << d->suffix_shift)) << 16;
370 
371  /* Shared or full IPv4 address */
372  return ((u64) addr << 16) | psid;
373 }
374 
377 {
378  return clib_host_to_net_u64(map_get_sfx(d, clib_net_to_host_u32(addr),
379  clib_net_to_host_u16(port)));
380 }
381 
384 {
385  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]) >> 16);
386 }
387 
388 /*
389  * Get the MAP domain from an IPv4 lookup adjacency.
390  */
393  u32 *map_domain_index)
394 {
395  map_main_t *mm = &map_main;
396  map_dpo_t *md;
397 
398  md = map_dpo_get(mdi);
399 
400  ASSERT(md);
401  *map_domain_index = md->md_domain;
402  return pool_elt_at_index(mm->domains, *map_domain_index);
403 }
404 
405 /*
406  * Get the MAP domain from an IPv6 lookup adjacency.
407  * If the IPv6 address or prefix is not shared, no lookup is required.
408  * The IPv4 address is used otherwise.
409  */
412  u32 *map_domain_index, u8 *error)
413 {
414  map_main_t *mm = &map_main;
415  map_dpo_t *md;
416 
417  /*
418  * Disable direct MAP domain lookup on decap, until the security check is updated to verify IPv4 SA.
419  * (That's done implicitly when MAP domain is looked up in the IPv4 FIB)
420  */
421 #ifdef MAP_NONSHARED_DOMAIN_ENABLED
422  md = map_dpo_get(mdi);
423 
424  ASSERT(md);
425  *map_domain_index = md->md_domain;
426  if (*map_domain_index != ~0)
427  return pool_elt_at_index(mm->domains, *map_domain_index);
428 #endif
429 
430  u32 lbi = ip4_fib_forwarding_lookup(0, addr);
431  const dpo_id_t *dpo = load_balance_get_bucket(lbi, 0);
432  if (PREDICT_TRUE(dpo->dpoi_type == map_dpo_type ||
433  dpo->dpoi_type == map_t_dpo_type))
434  {
435  md = map_dpo_get(dpo->dpoi_index);
436  *map_domain_index = md->md_domain;
437  return pool_elt_at_index(mm->domains, *map_domain_index);
438  }
439  *error = MAP_ERROR_NO_DOMAIN;
440  return NULL;
441 }
442 
444 map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id,
445  u8 protocol, u32 **pi_to_drop);
446 void
447 map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop);
448 
449 #define map_ip4_reass_lock() while (__sync_lock_test_and_set(map_main.ip4_reass_lock, 1)) {}
450 #define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0)
451 
454 {
455  int i;
457  if(r->fragments[i] != ~0) {
458  vec_add1(*pi, r->fragments[i]);
459  r->fragments[i] = ~0;
460  map_main.ip4_reass_buffered_counter--;
461  }
462 }
463 
465 
467 map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id,
468  u8 protocol, u32 **pi_to_drop);
469 void
470 map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop);
471 
472 #define map_ip6_reass_lock() while (__sync_lock_test_and_set(map_main.ip6_reass_lock, 1)) {}
473 #define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0)
474 
475 int
477  u16 data_offset, u16 next_data_offset,
478  u8 *data_start, u16 data_len);
479 
480 void map_ip4_drop_pi(u32 pi);
481 
482 int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
483 #define MAP_IP4_REASS_CONF_HT_RATIO_MAX 100
484 int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
485 #define MAP_IP4_REASS_CONF_POOL_SIZE_MAX (0xfeff)
486 int map_ip4_reass_conf_lifetime(u16 lifetime_ms);
487 #define MAP_IP4_REASS_CONF_LIFETIME_MAX 0xffff
488 int map_ip4_reass_conf_buffers(u32 buffers);
489 #define MAP_IP4_REASS_CONF_BUFFERS_MAX (0xffffffff)
490 
491 void map_ip6_drop_pi(u32 pi);
492 
493 
494 int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
495 #define MAP_IP6_REASS_CONF_HT_RATIO_MAX 100
496 int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
497 #define MAP_IP6_REASS_CONF_POOL_SIZE_MAX (0xfeff)
498 int map_ip6_reass_conf_lifetime(u16 lifetime_ms);
499 #define MAP_IP6_REASS_CONF_LIFETIME_MAX 0xffff
500 int map_ip6_reass_conf_buffers(u32 buffers);
501 #define MAP_IP6_REASS_CONF_BUFFERS_MAX (0xffffffff)
502 
504 int ip6_parse(const ip6_header_t *ip6, u32 buff_len,
505  u8 *l4_protocol, u16 *l4_offset, u16 *frag_hdr_offset)
506 {
507  if (ip6->protocol == IP_PROTOCOL_IPV6_FRAGMENTATION) {
508  *l4_protocol = ((ip6_frag_hdr_t *)(ip6 + 1))->next_hdr;
509  *frag_hdr_offset = sizeof(*ip6);
510  *l4_offset = sizeof(*ip6) + sizeof(ip6_frag_hdr_t);
511  } else {
512  *l4_protocol = ip6->protocol;
513  *frag_hdr_offset = 0;
514  *l4_offset = sizeof(*ip6);
515  }
516 
517  return (buff_len < (*l4_offset + 4)) ||
518  (clib_net_to_host_u16(ip6->payload_length) < (*l4_offset + 4 - sizeof(*ip6)));
519 }
520 
521 
522 #define u8_ptr_add(ptr, index) (((u8 *)ptr) + index)
523 #define u16_net_add(u, val) clib_host_to_net_u16(clib_net_to_host_u16(u) + (val))
524 
525 #define frag_id_6to4(id) ((id) ^ ((id) >> 16))
526 
529  ip6_address_t *ip6, const ip4_address_t *ip4)
530 {
531  ASSERT(d->ip6_src_len == 96); //No support for other lengths for now
532  ip6->as_u64[0] = d->ip6_src.as_u64[0];
533  ip6->as_u32[2] = d->ip6_src.as_u32[2];
534  ip6->as_u32[3] = ip4->as_u32;
535 }
536 
539 {
540  ASSERT(d->ip6_src_len == 96); //No support for other lengths for now
541  return addr->as_u32[3];
542 }
543 
544 static inline void
546 {
547  if (mm->counter_lock)
548  while (__sync_lock_test_and_set(mm->counter_lock, 1))
549  /* zzzz */ ;
550 }
551 static inline void
553 {
554  if (mm->counter_lock)
555  *mm->counter_lock = 0;
556 }
557 
558 
561  vlib_node_runtime_t *node, vlib_error_t *error,
562  u32 next)
563 {
564  u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
565  //Deal with fragments that are ready
566  from = pi_vector;
567  n_left_from = vec_len(pi_vector);
568  next_index = node->cached_next_index;
569  while (n_left_from > 0) {
570  vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
571  while (n_left_from > 0 && n_left_to_next > 0) {
572  u32 pi0 = to_next[0] = from[0];
573  from += 1;
574  n_left_from -= 1;
575  to_next += 1;
576  n_left_to_next -= 1;
577  vlib_buffer_t *p0 = vlib_get_buffer(vm, pi0);
578  p0->error = *error;
579  vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next);
580  }
581  vlib_put_next_frame(vm, node, next_index, n_left_to_next);
582  }
583 }
584 
585 /*
586  * fd.io coding-style-patch-verification: ON
587  *
588  * Local Variables:
589  * eval: (c-set-style "gnu")
590  * End:
591  */
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:1528
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
i32 ip4_get_port(ip4_header_t *ip, map_dir_e dir, u16 buffer_len)
Definition: map.c:79
u8 psid_length
Definition: map.h:102
map_ip4_reass_t * ip4_reass_pool
Definition: map.h:243
int map_ip4_reass_add_fragment(map_ip4_reass_t *r, u32 pi)
Definition: map.c:1437
u32 ip4_reass_conf_buffers
Definition: map.h:240
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:333
u16 ip4_reass_allocated
Definition: map.h:245
volatile u32 * ip6_reass_lock
Definition: map.h:271
volatile u32 * counter_lock
Definition: map.h:208
u8 ip4_reass_ht_log2len
Definition: map.h:244
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:300
#define NULL
Definition: clib.h:55
int map_ip4_reass_conf_buffers(u32 buffers)
Definition: map.c:1760
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:504
vlib_main_t * vlib_main
Definition: map.h:230
int map_ip6_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1836
u8 tc
Definition: map.h:218
int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1721
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:482
static void map_domain_counter_unlock(map_main_t *mm)
Definition: map.h:552
struct _vlib_node_registration vlib_node_registration_t
u32 suffix_mask
Definition: map.h:93
bool sec_check_frag
Definition: map.h:222
u32 ip4_reass_buffered_counter
Definition: map.h:251
ip6_address_t preresolve_ip6
Definition: map.h:214
u16 ip4_reass_fifo_last
Definition: map.h:247
map_ip6_reass_t * ip6_reass_pool
Definition: map.h:266
u16 port
Definition: map.h:311
ip4_address_t preresolve_ip4
Definition: map.h:213
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:528
#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:538
bool tc_copy
Definition: map.h:219
#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:207
ip4_address_t icmp4_src_address
Definition: map.h:226
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:560
u16 fifo_next
Definition: map.h:146
vlib_simple_counter_main_t icmp_relayed
Definition: map.h:227
int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1738
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:1804
u8 ea_bits_len
Definition: map.h:100
A collection of simple counters.
Definition: counter.h:59
u8 ip6_prefix_len
Definition: map.h:98
int map_ip6_reass_conf_buffers(u32 buffers)
Definition: map.c:1843
u16 ip6_reass_allocated
Definition: map.h:268
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:138
map_ip4_reass_t * map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id, u8 protocol, u32 **pi_to_drop)
Definition: map.c:1358
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:369
u32 vlib_error_t
Definition: error.h:44
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:165
dpo_type_t dpoi_type
the type
Definition: dpo.h:142
bool frag_ignore_df
Definition: map.h:254
volatile u32 * ip4_reass_lock
Definition: map.h:248
static_always_inline u64 map_get_pfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:347
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:411
u16 ip4_reass_conf_pool_size
Definition: map.h:238
map_domain_t * domains
Definition: map.h:203
int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1821
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:376
u16 * ip6_reass_hash_table
Definition: map.h:269
u16 * ip4_reass_hash_table
Definition: map.h:246
map_main_t map_main
Definition: map.h:314
#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
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:271
u16 expected_total
Definition: map.h:139
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:121
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:267
u32 as_u32[4]
Definition: ip6_packet.h:50
u16 ip6_reass_fifo_last
Definition: map.h:270
u16 ip6_reass_conf_pool_size
Definition: map.h:261
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:667
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:453
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:1476
u16 forwarded
Definition: map.h:140
bool icmp6_enabled
Definition: map.h:223
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:281
ip6_address_t ip6_src
Definition: map.h:90
static void map_domain_counter_lock(map_main_t *mm)
Definition: map.h:545
f32 ip4_reass_conf_ht_ratio
Definition: map.h:237
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:762
u16 cached_next_index
Definition: node.h:463
#define ASSERT(truth)
vlib_node_registration_t ip6_map_node
(constructor) VLIB_REGISTER_NODE (ip6_map_node)
Definition: ip6_map.c:1184
unsigned int u32
Definition: types.h:88
bool sec_check
Definition: map.h:221
bool frag_inner
Definition: map.h:253
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:119
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:658
ip6_address_t ip6_prefix
Definition: map.h:91
f32 ip6_reass_conf_ht_ratio
Definition: map.h:260
u8 * format_map_trace(u8 *s, va_list *args)
Definition: map.c:1278
vnet_main_t * vnet_main
Definition: map.h:231
i32 ip6_get_port(ip6_header_t *ip6, map_dir_e dir, u16 buffer_len)
Definition: map.c:123
unsigned short u16
Definition: types.h:57
u16 mtu
Definition: map.h:96
u16 payload_length
Definition: ip6_packet.h:328
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:154
static_always_inline u32 map_get_ip4(ip6_address_t *addr)
Definition: map.h:383
#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:262
unsigned char u8
Definition: types.h:56
u32 adj6_index
Definition: map.h:212
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:212
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:392
u8 ip4_prefix_len
Definition: map.h:110
vlib_simple_counter_main_t * simple_domain_counters
Definition: map.h:206
u64 map_error_counter_get(u32 node_index, map_error_t map_error)
Definition: map.c:984
#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:1315
u16 ip4_reass_conf_lifetime_ms
Definition: map.h:239
int map_delete_domain(u32 map_domain_index)
Definition: map.c:351
static_always_inline u64 map_get_sfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:357
u32 map_domain_index
Definition: map.h:310
int map_add_del_psid(u32 map_domain_index, u16 psid, ip6_address_t *tep, u8 is_add)
Definition: map.c:395
vhost_vring_addr_t addr
Definition: vhost-user.h:81
u16 fifo_prev
Definition: map.h:145
Definition: map.h:30
int map_ip4_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1753
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:75
u32 ip6_reass_buffered_counter
Definition: map.h:274
#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:1609
u16 fifo_next
Definition: map.h:196
#define CLIB_PACKED(x)
Definition: clib.h:78
u32 ip6_reass_conf_buffers
Definition: map.h:263
u32 md_domain
the MAP domain index
Definition: map_dpo.h:35