FD.io VPP  v19.04.4-rc0-5-ge88582fac
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/dpo/load_balance.h>
24 #include "lpm.h"
25 
26 #define MAP_SKIP_IP6_LOOKUP 1
27 
28 #define MAP_ERR_GOOD 0
29 #define MAP_ERR_BAD_POOL_SIZE -1
30 #define MAP_ERR_BAD_HT_RATIO -2
31 #define MAP_ERR_BAD_LIFETIME -3
32 #define MAP_ERR_BAD_BUFFERS -4
33 #define MAP_ERR_BAD_BUFFERS_TOO_LARGE -5
34 
35 int map_create_domain (ip4_address_t * ip4_prefix, u8 ip4_prefix_len,
36  ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
37  ip6_address_t * ip6_src, u8 ip6_src_len,
38  u8 ea_bits_len, u8 psid_offset, u8 psid_length,
39  u32 * map_domain_index, u16 mtu, u8 flags, char *tag);
40 int map_delete_domain (u32 map_domain_index);
41 int map_add_del_psid (u32 map_domain_index, u16 psid, ip6_address_t * tep,
42  bool is_add);
43 int map_if_enable_disable (bool is_enable, u32 sw_if_index,
44  bool is_translation);
45 u8 *format_map_trace (u8 * s, va_list * args);
46 
47 int map_param_set_fragmentation (bool inner, bool ignore_df);
48 int map_param_set_icmp (ip4_address_t * ip4_err_relay_src);
49 int map_param_set_icmp6 (u8 enable_unreachable);
50 void map_pre_resolve (ip4_address_t * ip4, ip6_address_t * ip6, bool is_del);
51 int map_param_set_reassembly (bool is_ipv6, u16 lifetime_ms,
52  u16 pool_size, u32 buffers, f64 ht_ratio,
53  u32 * reass, u32 * packets);
54 int map_param_set_security_check (bool enable, bool fragments);
55 int map_param_set_traffic_class (bool copy, u8 tc);
56 int map_param_set_tcp (u16 tcp_mss);
57 
58 
59 typedef enum
60 {
62  MAP_DOMAIN_TRANSLATION = 1 << 1, // The domain uses MAP-T
64 } __attribute__ ((__packed__)) map_domain_flags_e;
65 
66 /**
67  * IP4 reassembly logic:
68  * One virtually reassembled flow requires a map_ip4_reass_t structure in order
69  * to keep the first-fragment port number and, optionally, cache out of sequence
70  * packets.
71  * There are up to MAP_IP4_REASS_MAX_REASSEMBLY such structures.
72  * When in use, those structures are stored in a hash table of MAP_IP4_REASS_BUCKETS buckets.
73  * When a new structure needs to be used, it is allocated from available ones.
74  * If there is no structure available, the oldest in use is selected and used if and
75  * only if it was first allocated more than MAP_IP4_REASS_LIFETIME seconds ago.
76  * In case no structure can be allocated, the fragment is dropped.
77  */
78 
79 #define MAP_IP4_REASS_LIFETIME_DEFAULT (100) /* ms */
80 #define MAP_IP4_REASS_HT_RATIO_DEFAULT (1.0)
81 #define MAP_IP4_REASS_POOL_SIZE_DEFAULT 1024 // Number of reassembly structures
82 #define MAP_IP4_REASS_BUFFERS_DEFAULT 2048
83 
84 #define MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY 5 // Number of fragment per reassembly
85 
86 #define MAP_IP6_REASS_LIFETIME_DEFAULT (100) /* ms */
87 #define MAP_IP6_REASS_HT_RATIO_DEFAULT (1.0)
88 #define MAP_IP6_REASS_POOL_SIZE_DEFAULT 1024 // Number of reassembly structures
89 #define MAP_IP6_REASS_BUFFERS_DEFAULT 2048
90 
91 #define MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY 5
92 
93 #define MAP_IP6_REASS_COUNT_BYTES
94 #define MAP_IP4_REASS_COUNT_BYTES
95 
96 //#define IP6_MAP_T_OVERRIDE_TOS 0
97 
98 /*
99  * This structure _MUST_ be no larger than a single cache line (64 bytes).
100  * If more space is needed make a union of ip6_prefix and *rules, as
101  * those are mutually exclusive.
102  */
103 typedef struct
104 {
105  /* Required for pool_get_aligned */
106  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
120 
121  /* helpers */
125 
126  /* not used by forwarding */
128 } map_domain_t;
129 
131  "MAP domain fits in one cacheline");
132 
133 /*
134  * Extra data about a domain that doesn't need to be time/space critical.
135  * This structure is in a vector parallel to the main map_domain_t,
136  * and indexed by the same map-domain-index values.
137  */
138 typedef struct
139 {
140  char *tag; /* Probably a user-assigned domain name. */
142 
143 #define MAP_REASS_INDEX_NONE ((u16)0xffff)
144 
145 /*
146  * Hash key, padded out to 16 bytes for fast compare
147  */
148 /* *INDENT-OFF* */
149 typedef union {
150  CLIB_PACKED (struct {
153  u16 fragment_id;
154  u8 protocol;
155  });
157  u32 as_u32[4];
159 /* *INDENT-ON* */
160 
161 typedef struct
162 {
165 #ifdef MAP_IP4_REASS_COUNT_BYTES
168 #endif
176 
177 /*
178  * MAP domain counters
179  */
180 typedef enum
181 {
182  /* Simple counters */
184  /* Combined counters */
189 
190 /*
191  * main_main_t
192  */
193 /* *INDENT-OFF* */
194 typedef union {
195  CLIB_PACKED (struct {
198  u32 fragment_id;
199  u8 protocol;
200  });
202  u32 as_u32[10];
204 /* *INDENT-OFF* */
205 
206 typedef struct {
207  u32 pi; //Cached packet or ~0
208  u16 next_data_offset; //The data offset of the additional 20 bytes or ~0
209  u8 next_data_len; //Number of bytes ready to be copied (20 if not last fragment)
210  u8 next_data[20]; //The 20 additional bytes
212 
213 typedef struct {
216 #ifdef MAP_IP6_REASS_COUNT_BYTES
219 #endif
220  u16 bucket; //What hash bucket this element is linked in
227 
228 #ifdef MAP_SKIP_IP6_LOOKUP
229 /**
230  * A pre-resolved next-hop
231  */
233 {
234  /**
235  * Linkage into the FIB graph
236  */
238 
239  /**
240  * The FIB entry index of the next-hop
241  */
243 
244  /**
245  * This object sibling index on the FIB entry's child dependency list
246  */
248 
249  /**
250  * The Load-balance object index to use to forward
251  */
254 
255 /**
256  * Pre-resolved next hops for v4 and v6. Why these are global and not
257  * per-domain is beyond me.
258  */
259 extern map_main_pre_resolved_t pre_resolved[FIB_PROTOCOL_MAX];
260 #endif
261 
262 typedef struct {
263  /* pool of MAP domains */
266 
267  /* MAP Domain packet/byte counters indexed by map domain index */
270  volatile u32 *counter_lock;
271 
272  /* API message id base */
274 
275  /* Traffic class: zero, copy (~0) or fixed value */
277  bool tc_copy;
278 
279  bool sec_check; /* Inbound security check */
280  bool sec_check_frag; /* Inbound security check for (subsequent) fragments */
281  bool icmp6_enabled; /* Send destination unreachable for security check failure */
282 
283  u16 tcp_mss; /* TCP MSS clamp value */
284 
285  /* ICMPv6 -> ICMPv4 relay parameters */
288 
289  /* convenience */
292 
293  /*
294  * IPv4 encap and decap reassembly
295  */
296  /* Configuration */
297  f32 ip4_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
298  u16 ip4_reass_conf_pool_size; //Max number of allocated reass structures
299  u16 ip4_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
300  u32 ip4_reass_conf_buffers; //Maximum number of buffers used by ip4 reassembly
301 
302  /* Runtime */
304  u8 ip4_reass_ht_log2len; //Hash table size is 2^log2len
308  volatile u32 *ip4_reass_lock;
309 
310  /* Counters */
312 
313  bool frag_inner; /* Inner or outer fragmentation */
314  bool frag_ignore_df; /* Fragment (outer) packet even if DF is set */
315 
316  /*
317  * IPv6 decap reassembly
318  */
319  /* Configuration */
320  f32 ip6_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
321  u16 ip6_reass_conf_pool_size; //Max number of allocated reass structures
322  u16 ip6_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
323  u32 ip6_reass_conf_buffers; //Maximum number of buffers used by ip6 reassembly
324 
325  /* Runtime */
327  u8 ip6_reass_ht_log2len; //Hash table size is 2^log2len
331  volatile u32 *ip6_reass_lock;
332 
333  /* Counters */
335 
336  /* Graph node state */
339 
340  /* Lookup tables */
344 } map_main_t;
345 
346 /*
347  * MAP Error counters/messages
348  */
349 #define foreach_map_error \
350  /* Must be first. */ \
351  _(NONE, "valid MAP packets") \
352  _(BAD_PROTOCOL, "bad protocol") \
353  _(SEC_CHECK, "security check failed") \
354  _(ENCAP_SEC_CHECK, "encap security check failed") \
355  _(DECAP_SEC_CHECK, "decap security check failed") \
356  _(ICMP, "unable to translate ICMP") \
357  _(ICMP_RELAY, "unable to relay ICMP") \
358  _(UNKNOWN, "unknown") \
359  _(NO_BINDING, "no binding") \
360  _(NO_DOMAIN, "no domain") \
361  _(FRAGMENTED, "packet is a fragment") \
362  _(FRAGMENT_MEMORY, "could not cache fragment") \
363  _(FRAGMENT_MALFORMED, "fragment has unexpected format")\
364  _(FRAGMENT_DROPPED, "dropped cached fragment") \
365  _(MALFORMED, "malformed packet") \
366  _(DF_SET, "can't fragment, DF set")
367 
368 typedef enum {
369 #define _(sym,str) MAP_ERROR_##sym,
371 #undef _
373  } map_error_t;
374 
375 u64 map_error_counter_get(u32 node_index, map_error_t map_error);
376 
377 typedef struct {
380 } map_trace_t;
381 
382 extern map_main_t map_main;
383 
386 
391 
396 
397 /*
398  * map_get_pfx
399  */
402 {
403  u16 psid = (port >> d->psid_shift) & d->psid_mask;
404 
405  if (d->ea_bits_len == 0 && d->rules)
406  return clib_net_to_host_u64(d->rules[psid].as_u64[0]);
407 
408  u32 suffix = (addr >> d->suffix_shift) & d->suffix_mask;
409  u64 ea = d->ea_bits_len == 0 ? 0 : (((u64) suffix << d->psid_length)) | psid;
410 
411  return clib_net_to_host_u64(d->ip6_prefix.as_u64[0]) | ea << d->ea_shift;
412 }
413 
416 {
417  return clib_host_to_net_u64(map_get_pfx(d, clib_net_to_host_u32(addr),
418  clib_net_to_host_u16(port)));
419 }
420 
421 /*
422  * map_get_sfx
423  */
426 {
427  u16 psid = (port >> d->psid_shift) & d->psid_mask;
428 
429  /* Shared 1:1 mode. */
430  if (d->ea_bits_len == 0 && d->rules)
431  return clib_net_to_host_u64(d->rules[psid].as_u64[1]);
432  if (d->ip6_prefix_len == 128)
433  return clib_net_to_host_u64(d->ip6_prefix.as_u64[1]);
434 
435  if (d->ip6_src_len == 96)
436  return (clib_net_to_host_u64(d->ip6_prefix.as_u64[1]) | addr);
437 
438  /* IPv4 prefix */
439  if (d->flags & MAP_DOMAIN_PREFIX)
440  return (u64) (addr & (0xFFFFFFFF << d->suffix_shift)) << 16;
441 
442  /* Shared or full IPv4 address */
443  return ((u64) addr << 16) | psid;
444 }
445 
448 {
449  return clib_host_to_net_u64(map_get_sfx(d, clib_net_to_host_u32(addr),
450  clib_net_to_host_u16(port)));
451 }
452 
455 {
456  ASSERT(prefix_len == 64 || prefix_len == 96);
457  if (prefix_len == 96)
458  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]));
459  else
460  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]) >> 16);
461 }
462 
464 ip4_map_get_domain (ip4_address_t *addr, u32 *map_domain_index, u8 *error)
465 {
466  map_main_t *mm = &map_main;
467 
468  u32 mdi = mm->ip4_prefix_tbl->lookup(mm->ip4_prefix_tbl, addr, 32);
469  if (mdi == ~0) {
470  *error = MAP_ERROR_NO_DOMAIN;
471  return 0;
472  }
473  *map_domain_index = mdi;
474  return pool_elt_at_index(mm->domains, mdi);
475 }
476 
477 /*
478  * Get the MAP domain from an IPv6 address.
479  * If the IPv6 address or
480  * prefix is shared the IPv4 address must be used.
481  */
484  u32 *map_domain_index,
485  u8 *error)
486 {
487  map_main_t *mm = &map_main;
488  u32 mdi = mm->ip6_src_prefix_tbl->lookup(mm->ip6_src_prefix_tbl, addr, 128);
489  if (mdi == ~0) {
490  *error = MAP_ERROR_NO_DOMAIN;
491  return 0;
492  }
493 
494  *map_domain_index = mdi;
495  return pool_elt_at_index(mm->domains, mdi);
496 }
497 
499 map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id,
500  u8 protocol, u32 **pi_to_drop);
501 void
502 map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop);
503 
504 #define map_ip4_reass_lock() while (clib_atomic_test_and_set (map_main.ip4_reass_lock)) {}
505 #define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0)
506 
509 {
510  int i;
512  if(r->fragments[i] != ~0) {
513  vec_add1(*pi, r->fragments[i]);
514  r->fragments[i] = ~0;
515  map_main.ip4_reass_buffered_counter--;
516  }
517 }
518 
520 
522 
524 map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id,
525  u8 protocol, u32 **pi_to_drop);
526 void
527 map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop);
528 
529 #define map_ip6_reass_lock() while (clib_atomic_test_and_set (map_main.ip6_reass_lock)) {}
530 #define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0)
531 
532 int
534  u16 data_offset, u16 next_data_offset,
535  u8 *data_start, u16 data_len);
536 
537 void map_ip4_drop_pi(u32 pi);
538 
539 int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
540 #define MAP_IP4_REASS_CONF_HT_RATIO_MAX 100
541 int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
542 #define MAP_IP4_REASS_CONF_POOL_SIZE_MAX (0xfeff)
543 int map_ip4_reass_conf_lifetime(u16 lifetime_ms);
544 #define MAP_IP4_REASS_CONF_LIFETIME_MAX 0xffff
545 int map_ip4_reass_conf_buffers(u32 buffers);
546 #define MAP_IP4_REASS_CONF_BUFFERS_MAX (0xffffffff)
547 
548 void map_ip6_drop_pi(u32 pi);
549 
550 
551 int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
552 #define MAP_IP6_REASS_CONF_HT_RATIO_MAX 100
553 int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
554 #define MAP_IP6_REASS_CONF_POOL_SIZE_MAX (0xfeff)
555 int map_ip6_reass_conf_lifetime(u16 lifetime_ms);
556 #define MAP_IP6_REASS_CONF_LIFETIME_MAX 0xffff
557 int map_ip6_reass_conf_buffers(u32 buffers);
558 #define MAP_IP6_REASS_CONF_BUFFERS_MAX (0xffffffff)
559 
560 /*
561  * Supports prefix of 96 or 64 (with u-octet)
562  */
565  ip6_address_t *ip6, const ip4_address_t *ip4)
566 {
567  ASSERT(d->ip6_src_len == 96 || d->ip6_src_len == 64); //No support for other lengths for now
568  u8 offset = d->ip6_src_len == 64 ? 9 : 12;
569  ip6->as_u64[0] = d->ip6_src.as_u64[0];
570  ip6->as_u64[1] = d->ip6_src.as_u64[1];
571  clib_memcpy_fast(&ip6->as_u8[offset], ip4, 4);
572 }
573 
576 {
577  ASSERT(d->ip6_src_len == 64 || d->ip6_src_len == 96);
578  u32 x;
579  u8 offset = d->ip6_src_len == 64 ? 9 : 12;
580  clib_memcpy(&x, &addr->as_u8[offset], 4);
581  return x;
582 }
583 
584 static inline void
586 {
587  if (mm->counter_lock)
589  /* zzzz */ ;
590 }
591 static inline void
593 {
594  if (mm->counter_lock)
596 }
597 
598 
602  u32 next)
603 {
604  u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
605  //Deal with fragments that are ready
606  from = pi_vector;
607  n_left_from = vec_len(pi_vector);
608  next_index = node->cached_next_index;
609  while (n_left_from > 0) {
610  vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
611  while (n_left_from > 0 && n_left_to_next > 0) {
612  u32 pi0 = to_next[0] = from[0];
613  from += 1;
614  n_left_from -= 1;
615  to_next += 1;
616  n_left_to_next -= 1;
617  vlib_buffer_t *p0 = vlib_get_buffer(vm, pi0);
618  p0->error = *error;
619  vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next);
620  }
621  vlib_put_next_frame(vm, node, next_index, n_left_to_next);
622  }
623 }
624 
627 {
628  u8 *data;
629  u8 opt_len, opts_len, kind;
630  u16 mss;
631  u16 mss_value_net = clib_host_to_net_u16(mss_clamping);
632 
633  if (!tcp_syn (tcp))
634  return;
635 
636  opts_len = (tcp_doff (tcp) << 2) - sizeof (tcp_header_t);
637  data = (u8 *) (tcp + 1);
638  for (; opts_len > 0; opts_len -= opt_len, data += opt_len)
639  {
640  kind = data[0];
641 
642  if (kind == TCP_OPTION_EOL)
643  break;
644  else if (kind == TCP_OPTION_NOOP)
645  {
646  opt_len = 1;
647  continue;
648  }
649  else
650  {
651  if (opts_len < 2)
652  return;
653  opt_len = data[1];
654 
655  if (opt_len < 2 || opt_len > opts_len)
656  return;
657  }
658 
659  if (kind == TCP_OPTION_MSS)
660  {
661  mss = *(u16 *) (data + 2);
662  if (clib_net_to_host_u16 (mss) > mss_clamping)
663  {
664  *sum =
665  ip_csum_update (*sum, mss, mss_value_net, ip4_header_t,
666  length);
667  clib_memcpy (data + 2, &mss_value_net, 2);
668  }
669  return;
670  }
671  }
672 }
673 
674 /*
675  * fd.io coding-style-patch-verification: ON
676  *
677  * Local Variables:
678  * eval: (c-set-style "gnu")
679  * End:
680  */
u16 forwarded
Definition: map.h:218
typedef ip6_prefix
Definition: ip_types.api:47
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:1619
u32 sw_if_index
Definition: ipsec_gre.api:37
int map_param_set_icmp(ip4_address_t *ip4_err_relay_src)
Definition: map_api.c:306
u8 psid_length
Definition: map.h:119
map_ip4_reass_t * ip4_reass_pool
Definition: map.h:303
int map_ip4_reass_add_fragment(map_ip4_reass_t *r, u32 pi)
Definition: map.c:1528
u32 ip4_reass_conf_buffers
Definition: map.h:300
End of options.
Definition: tcp_packet.h:104
fib_node_t node
Linkage into the FIB graph.
Definition: map.h:237
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:60
u32 flags
Definition: vhost_user.h:115
map_domain_flags_e flags
Definition: map.h:114
u16 fifo_prev
Definition: map.h:222
vlib_node_registration_t ip4_map_t_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_node)
Definition: ip4_map_t.c:742
static_always_inline u64 map_get_pfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:401
u16 ip4_reass_allocated
Definition: map.h:305
volatile u32 * ip6_reass_lock
Definition: map.h:331
volatile u32 * counter_lock
Definition: map.h:270
u8 ip4_reass_ht_log2len
Definition: map.h:304
u32 fragments[MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY]
Definition: map.h:174
vlib_node_registration_t ip4_map_t_icmp_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_icmp_node)
Definition: ip4_map_t.c:702
int map_if_enable_disable(bool is_enable, u32 sw_if_index, bool is_translation)
Definition: map_api.c:632
u16 bucket_next
Definition: map.h:221
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
map_error_t
Definition: map.h:368
u16 msg_id_base
Definition: map.h:273
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
dpo_id_t dpo
The Load-balance object index to use to forward.
Definition: map.h:252
int map_ip4_reass_conf_buffers(u32 buffers)
Definition: map.c:1858
vlib_main_t * vlib_main
Definition: map.h:290
#define tcp_doff(_th)
Definition: tcp_packet.h:78
int map_ip6_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1934
u8 tc
Definition: map.h:276
int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1819
static_always_inline map_domain_t * ip6_map_get_domain(ip6_address_t *addr, u32 *map_domain_index, u8 *error)
Definition: map.h:483
A pre-resolved next-hop.
Definition: map.h:232
#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:592
u16 vlib_error_t
Definition: error.h:43
int i
static_always_inline map_domain_t * ip4_map_get_domain(ip4_address_t *addr, u32 *map_domain_index, u8 *error)
Definition: map.h:464
u32 suffix_mask
Definition: map.h:110
bool sec_check_frag
Definition: map.h:280
u32 ip4_reass_buffered_counter
Definition: map.h:311
uword ip_csum_t
Definition: ip_packet.h:181
u8 data[128]
Definition: ipsec.api:248
vl_api_ip4_address_t dst
Definition: ipsec_gre.api:39
uword * bm_trans_enabled_by_sw_if
Definition: map.h:337
No operation.
Definition: tcp_packet.h:105
u16 ip4_reass_fifo_last
Definition: map.h:307
struct _tcp_header tcp_header_t
vhost_vring_addr_t addr
Definition: vhost_user.h:121
unsigned char u8
Definition: types.h:56
char * tag
Definition: map.h:140
map_ip6_reass_t * ip6_reass_pool
Definition: map.h:326
u16 port
Definition: map.h:379
double f64
Definition: types.h:142
#define clib_memcpy(d, s, n)
Definition: string.h:180
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:748
Limit MSS.
Definition: tcp_packet.h:106
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:564
#define MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY
Definition: map.h:84
static_always_inline u32 ip6_map_t_embedded_address(map_domain_t *d, ip6_address_t *addr)
Definition: map.h:575
bool tc_copy
Definition: map.h:277
#define static_always_inline
Definition: clib.h:99
static_always_inline u32 map_get_ip4(ip6_address_t *addr, u16 prefix_len)
Definition: map.h:454
map_ip4_reass_key_t key
Definition: map.h:163
u16 bucket
Definition: map.h:220
vlib_combined_counter_main_t * domain_counters
Definition: map.h:269
ip4_address_t icmp4_src_address
Definition: map.h:286
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:600
u16 fifo_next
Definition: map.h:173
vlib_simple_counter_main_t icmp_relayed
Definition: map.h:287
int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1836
ip6_address_t * rules
Definition: map.h:109
int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1902
u8 ea_bits_len
Definition: map.h:117
unsigned int u32
Definition: types.h:88
A collection of simple counters.
Definition: counter.h:57
u8 ip6_prefix_len
Definition: map.h:115
int map_ip6_reass_conf_buffers(u32 buffers)
Definition: map.c:1941
#define clib_atomic_test_and_set(a)
Definition: atomics.h:40
u16 ip6_reass_allocated
Definition: map.h:328
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:136
static void mss_clamping(snat_main_t *sm, tcp_header_t *tcp, ip_csum_t *sum)
Definition: nat_inlines.h:353
u32(* lookup)(struct lpm_ *lpm, void *addr_v, u8 pfxlen)
Definition: lpm.h:27
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:168
Definition: lpm.h:24
map_ip4_reass_t * map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id, u8 protocol, u32 **pi_to_drop)
Definition: map.c:1447
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
typedef ip4_prefix
Definition: ip_types.api:52
#define clib_atomic_release(a)
Definition: atomics.h:41
int map_add_del_psid(u32 map_domain_index, u16 psid, ip6_address_t *tep, bool is_add)
Definition: map.c:240
bool frag_ignore_df
Definition: map.h:314
volatile u32 * ip4_reass_lock
Definition: map.h:308
int map_param_set_traffic_class(bool copy, u8 tc)
Definition: map_api.c:529
static_always_inline u64 map_get_pfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:415
unsigned short u16
Definition: types.h:57
u16 ip4_reass_conf_pool_size
Definition: map.h:298
map_domain_t * domains
Definition: map.h:264
int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1919
u16 bucket
Definition: map.h:170
static_always_inline u64 map_get_sfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:447
u16 * ip6_reass_hash_table
Definition: map.h:329
u16 * ip4_reass_hash_table
Definition: map.h:306
map_main_t map_main
Definition: map.c:26
vl_api_ip4_address_t src
Definition: ipsec_gre.api:38
STATIC_ASSERT((sizeof(map_domain_t)<=CLIB_CACHE_LINE_BYTES), "MAP domain fits in one cacheline")
#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:218
An node in the FIB graph.
Definition: fib_node.h:291
u8 ip6_src_len
Definition: map.h:116
#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:338
u8 psid_shift
Definition: map.h:122
u16 expected_total
Definition: map.h:166
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:722
u8 suffix_shift
Definition: map.h:123
vlib_node_registration_t ip4_map_t_fragmented_node
(constructor) VLIB_REGISTER_NODE (ip4_map_t_fragmented_node)
Definition: ip4_map_t.c:682
u8 ip6_reass_ht_log2len
Definition: map.h:327
u16 ip6_reass_fifo_last
Definition: map.h:330
lpm_t * ip6_src_prefix_tbl
Definition: map.h:343
u16 ip6_reass_conf_pool_size
Definition: map.h:321
u8 next_data_len
Definition: map.h:209
void map_ip4_drop_pi(u32 pi)
Definition: ip6_map.c:661
ip4_address_t ip4_prefix
Definition: map.h:111
u16 next_data_offset
Definition: map.h:208
static_always_inline void map_ip4_reass_get_fragments(map_ip4_reass_t *r, u32 **pi)
Definition: map.h:508
vlib_node_registration_t ip6_map_t_icmp_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_icmp_node)
Definition: ip6_map_t.c:727
uword * bm_encap_enabled_by_sw_if
Definition: map.h:338
u8 psid_offset
Definition: map.h:118
void map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1567
u16 forwarded
Definition: map.h:167
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, char *tag)
Definition: map.c:110
bool icmp6_enabled
Definition: map.h:281
int map_param_set_fragmentation(bool inner, bool ignore_df)
Definition: map_api.c:281
u32 sibling
This object sibling index on the FIB entry&#39;s child dependency list.
Definition: map.h:247
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
map_domain_counter_t
Definition: map.h:180
map_ip6_reass_key_t key
Definition: map.h:214
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:458
#define foreach_map_error
Definition: map.h:349
ip6_address_t ip6_src
Definition: map.h:107
static void map_domain_counter_lock(map_main_t *mm)
Definition: map.h:585
f32 ip4_reass_conf_ht_ratio
Definition: map.h:297
void map_pre_resolve(ip4_address_t *ip4, ip6_address_t *ip6, bool is_del)
Definition: map.c:422
vlib_node_registration_t ip4_map_node
(constructor) VLIB_REGISTER_NODE (ip4_map_node)
Definition: ip4_map.c:719
signed int i32
Definition: types.h:77
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:513
#define ASSERT(truth)
vlib_node_registration_t ip6_map_node
(constructor) VLIB_REGISTER_NODE (ip6_map_node)
Definition: ip6_map.c:1181
#define tcp_syn(_th)
Definition: tcp_packet.h:80
bool sec_check
Definition: map.h:279
u8 is_add
Definition: ipsec_gre.api:36
bool frag_inner
Definition: map.h:313
u16 psid_mask
Definition: map.h:112
ip4_header_t ip4_header
Definition: map.h:224
u8 ea_shift
Definition: map.h:124
void map_ip6_drop_pi(u32 pi)
Definition: ip6_map.c:652
ip6_address_t ip6_prefix
Definition: map.h:108
float f32
Definition: types.h:143
static_always_inline void map_mss_clamping(tcp_header_t *tcp, ip_csum_t *sum, u16 mss_clamping)
Definition: map.h:626
f32 ip6_reass_conf_ht_ratio
Definition: map.h:320
u8 * format_map_trace(u8 *s, va_list *args)
Definition: map.c:1367
struct _vlib_node_registration vlib_node_registration_t
template key/value backing page structure
Definition: bihash_doc.h:44
vnet_main_t * vnet_main
Definition: map.h:291
int map_param_set_security_check(bool enable, bool fragments)
Definition: map_api.c:504
u16 mtu
Definition: map.h:113
int map_param_set_icmp6(u8 enable_unreachable)
Definition: map_api.c:333
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
clib_error_t * map_plugin_api_hookup(vlib_main_t *vm)
Definition: map_api.c:731
u16 ip6_reass_conf_lifetime_ms
Definition: map.h:322
fib_node_index_t fei
The FIB entry index of the next-hop.
Definition: map.h:242
map_domain_extra_t * domain_extras
Definition: map.h:265
i32 port
Definition: map.h:169
VLIB buffer representation.
Definition: buffer.h:102
u64 uword
Definition: types.h:112
#define ip_csum_update(sum, old, new, type, field)
Definition: ip_packet.h:231
u16 tcp_mss
Definition: map.h:283
lpm_t * ip4_prefix_tbl
Definition: map.h:341
A collection of combined counters.
Definition: counter.h:188
u16 bucket_next
Definition: map.h:171
#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:52
u8 ip4_prefix_len
Definition: map.h:127
vlib_simple_counter_main_t * simple_domain_counters
Definition: map.h:268
u64 map_error_counter_get(u32 node_index, map_error_t map_error)
Definition: map.c:1092
int map_param_set_tcp(u16 tcp_mss)
Definition: map_api.c:554
#define MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY
Definition: map.h:91
void map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1404
u16 ip4_reass_conf_lifetime_ms
Definition: map.h:299
int map_delete_domain(u32 map_domain_index)
Definition: map.c:209
static_always_inline u64 map_get_sfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:425
u32 map_domain_index
Definition: map.h:378
u16 fifo_prev
Definition: map.h:172
int map_ip4_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1851
vlib_node_registration_t ip6_map_t_fragmented_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_fragmented_node)
Definition: ip6_map_t.c:706
int map_param_set_reassembly(bool is_ipv6, u16 lifetime_ms, u16 pool_size, u32 buffers, f64 ht_ratio, u32 *reass, u32 *packets)
Definition: map_api.c:371
vlib_node_registration_t ip6_map_t_node
(constructor) VLIB_REGISTER_NODE (ip6_map_t_node)
Definition: ip6_map_t.c:775
u32 ip6_reass_buffered_counter
Definition: map.h:334
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
lpm_t * ip6_prefix_tbl
Definition: map.h:342
u16 expected_total
Definition: map.h:217
map_domain_flags_e
Definition: map.h:59
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:85
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:1707
struct map_main_pre_resolved_t_ map_main_pre_resolved_t
A pre-resolved next-hop.
u16 fifo_next
Definition: map.h:223
#define CLIB_PACKED(x)
Definition: clib.h:81
u8 protocol
Definition: ipsec.api:96
u32 ip6_reass_conf_buffers
Definition: map.h:323