FD.io VPP  v19.08-27-gf4dcae4
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 #include <vppinfra/lock.h>
26 
27 #define MAP_SKIP_IP6_LOOKUP 1
28 
29 #define MAP_ERR_GOOD 0
30 #define MAP_ERR_BAD_POOL_SIZE -1
31 #define MAP_ERR_BAD_HT_RATIO -2
32 #define MAP_ERR_BAD_LIFETIME -3
33 #define MAP_ERR_BAD_BUFFERS -4
34 #define MAP_ERR_BAD_BUFFERS_TOO_LARGE -5
35 
36 int map_create_domain (ip4_address_t * ip4_prefix, u8 ip4_prefix_len,
37  ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
38  ip6_address_t * ip6_src, u8 ip6_src_len,
39  u8 ea_bits_len, u8 psid_offset, u8 psid_length,
40  u32 * map_domain_index, u16 mtu, u8 flags, u8 * tag);
41 int map_delete_domain (u32 map_domain_index);
42 int map_add_del_psid (u32 map_domain_index, u16 psid, ip6_address_t * tep,
43  bool is_add);
44 int map_if_enable_disable (bool is_enable, u32 sw_if_index,
45  bool is_translation);
46 u8 *format_map_trace (u8 * s, va_list * args);
47 
48 int map_param_set_fragmentation (bool inner, bool ignore_df);
49 int map_param_set_icmp (ip4_address_t * ip4_err_relay_src);
50 int map_param_set_icmp6 (u8 enable_unreachable);
51 void map_pre_resolve (ip4_address_t * ip4, ip6_address_t * ip6, bool is_del);
52 int map_param_set_reassembly (bool is_ipv6, u16 lifetime_ms,
53  u16 pool_size, u32 buffers, f64 ht_ratio,
54  u32 * reass, u32 * packets);
55 int map_param_set_security_check (bool enable, bool fragments);
56 int map_param_set_traffic_class (bool copy, u8 tc);
57 int map_param_set_tcp (u16 tcp_mss);
58 
59 
60 typedef enum
61 {
63  MAP_DOMAIN_TRANSLATION = 1 << 1, // The domain uses MAP-T
65 } __attribute__ ((__packed__)) map_domain_flags_e;
66 
67 /**
68  * IP4 reassembly logic:
69  * One virtually reassembled flow requires a map_ip4_reass_t structure in order
70  * to keep the first-fragment port number and, optionally, cache out of sequence
71  * packets.
72  * There are up to MAP_IP4_REASS_MAX_REASSEMBLY such structures.
73  * When in use, those structures are stored in a hash table of MAP_IP4_REASS_BUCKETS buckets.
74  * When a new structure needs to be used, it is allocated from available ones.
75  * If there is no structure available, the oldest in use is selected and used if and
76  * only if it was first allocated more than MAP_IP4_REASS_LIFETIME seconds ago.
77  * In case no structure can be allocated, the fragment is dropped.
78  */
79 
80 #define MAP_IP4_REASS_LIFETIME_DEFAULT (100) /* ms */
81 #define MAP_IP4_REASS_HT_RATIO_DEFAULT (1.0)
82 #define MAP_IP4_REASS_POOL_SIZE_DEFAULT 1024 // Number of reassembly structures
83 #define MAP_IP4_REASS_BUFFERS_DEFAULT 2048
84 
85 #define MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY 5 // Number of fragment per reassembly
86 
87 #define MAP_IP6_REASS_LIFETIME_DEFAULT (100) /* ms */
88 #define MAP_IP6_REASS_HT_RATIO_DEFAULT (1.0)
89 #define MAP_IP6_REASS_POOL_SIZE_DEFAULT 1024 // Number of reassembly structures
90 #define MAP_IP6_REASS_BUFFERS_DEFAULT 2048
91 
92 #define MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY 5
93 
94 #define MAP_IP6_REASS_COUNT_BYTES
95 #define MAP_IP4_REASS_COUNT_BYTES
96 
97 //#define IP6_MAP_T_OVERRIDE_TOS 0
98 
99 /*
100  * This structure _MUST_ be no larger than a single cache line (64 bytes).
101  * If more space is needed make a union of ip6_prefix and *rules, as
102  * those are mutually exclusive.
103  */
104 typedef struct
105 {
106  /* Required for pool_get_aligned */
107  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
115  map_domain_flags_e flags;
121 
122  /* helpers */
126 
127  /* not used by forwarding */
129 } map_domain_t;
130 
132  "MAP domain fits in one cacheline");
133 
134 /*
135  * Extra data about a domain that doesn't need to be time/space critical.
136  * This structure is in a vector parallel to the main map_domain_t,
137  * and indexed by the same map-domain-index values.
138  */
139 typedef struct
140 {
141  u8 *tag; /* Probably a user-assigned domain name. */
143 
144 #define MAP_REASS_INDEX_NONE ((u16)0xffff)
145 
146 /*
147  * Hash key, padded out to 16 bytes for fast compare
148  */
149 /* *INDENT-OFF* */
150 typedef union {
151  CLIB_PACKED (struct {
154  u16 fragment_id;
155  u8 protocol;
156  });
158  u32 as_u32[4];
160 /* *INDENT-ON* */
161 
162 typedef struct
163 {
166 #ifdef MAP_IP4_REASS_COUNT_BYTES
169 #endif
177 
178 /*
179  * MAP domain counters
180  */
181 typedef enum
182 {
183  /* Simple counters */
185  /* Combined counters */
190 
191 /*
192  * main_main_t
193  */
194 /* *INDENT-OFF* */
195 typedef union {
196  CLIB_PACKED (struct {
199  u32 fragment_id;
200  u8 protocol;
201  });
203  u32 as_u32[10];
205 /* *INDENT-OFF* */
206 
207 typedef struct {
208  u32 pi; //Cached packet or ~0
209  u16 next_data_offset; //The data offset of the additional 20 bytes or ~0
210  u8 next_data_len; //Number of bytes ready to be copied (20 if not last fragment)
211  u8 next_data[20]; //The 20 additional bytes
213 
214 typedef struct {
217 #ifdef MAP_IP6_REASS_COUNT_BYTES
220 #endif
221  u16 bucket; //What hash bucket this element is linked in
228 
229 #ifdef MAP_SKIP_IP6_LOOKUP
230 /**
231  * A pre-resolved next-hop
232  */
234 {
235  /**
236  * Linkage into the FIB graph
237  */
239 
240  /**
241  * The FIB entry index of the next-hop
242  */
244 
245  /**
246  * This object sibling index on the FIB entry's child dependency list
247  */
249 
250  /**
251  * The Load-balance object index to use to forward
252  */
255 
256 /**
257  * Pre-resolved next hops for v4 and v6. Why these are global and not
258  * per-domain is beyond me.
259  */
260 extern map_main_pre_resolved_t pre_resolved[FIB_PROTOCOL_MAX];
261 #endif
262 
263 typedef struct {
264  /* pool of MAP domains */
267 
268  /* MAP Domain packet/byte counters indexed by map domain index */
271  volatile u32 *counter_lock;
272 
273  /* API message id base */
275 
276  /* Traffic class: zero, copy (~0) or fixed value */
278  bool tc_copy;
279 
280  bool sec_check; /* Inbound security check */
281  bool sec_check_frag; /* Inbound security check for (subsequent) fragments */
282  bool icmp6_enabled; /* Send destination unreachable for security check failure */
283 
284  u16 tcp_mss; /* TCP MSS clamp value */
285 
286  /* ICMPv6 -> ICMPv4 relay parameters */
289 
290  /* convenience */
293 
294  /*
295  * IPv4 encap and decap reassembly
296  */
297  /* Configuration */
298  f32 ip4_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
299  u16 ip4_reass_conf_pool_size; //Max number of allocated reass structures
300  u16 ip4_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
301  u32 ip4_reass_conf_buffers; //Maximum number of buffers used by ip4 reassembly
302 
303  /* Runtime */
305  u8 ip4_reass_ht_log2len; //Hash table size is 2^log2len
310 
311  /* Counters */
313 
314  bool frag_inner; /* Inner or outer fragmentation */
315  bool frag_ignore_df; /* Fragment (outer) packet even if DF is set */
316 
317  /*
318  * IPv6 decap reassembly
319  */
320  /* Configuration */
321  f32 ip6_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
322  u16 ip6_reass_conf_pool_size; //Max number of allocated reass structures
323  u16 ip6_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
324  u32 ip6_reass_conf_buffers; //Maximum number of buffers used by ip6 reassembly
325 
326  /* Runtime */
328  u8 ip6_reass_ht_log2len; //Hash table size is 2^log2len
333 
334  /* Counters */
336 
337  /* Graph node state */
340 
341  /* Lookup tables */
345 } map_main_t;
346 
347 /*
348  * MAP Error counters/messages
349  */
350 #define foreach_map_error \
351  /* Must be first. */ \
352  _(NONE, "valid MAP packets") \
353  _(BAD_PROTOCOL, "bad protocol") \
354  _(SEC_CHECK, "security check failed") \
355  _(ENCAP_SEC_CHECK, "encap security check failed") \
356  _(DECAP_SEC_CHECK, "decap security check failed") \
357  _(ICMP, "unable to translate ICMP") \
358  _(ICMP_RELAY, "unable to relay ICMP") \
359  _(UNKNOWN, "unknown") \
360  _(NO_BINDING, "no binding") \
361  _(NO_DOMAIN, "no domain") \
362  _(FRAGMENTED, "packet is a fragment") \
363  _(FRAGMENT_MEMORY, "could not cache fragment") \
364  _(FRAGMENT_MALFORMED, "fragment has unexpected format")\
365  _(FRAGMENT_DROPPED, "dropped cached fragment") \
366  _(MALFORMED, "malformed packet") \
367  _(DF_SET, "can't fragment, DF set")
368 
369 typedef enum {
370 #define _(sym,str) MAP_ERROR_##sym,
372 #undef _
374  } map_error_t;
375 
376 u64 map_error_counter_get(u32 node_index, map_error_t map_error);
377 
378 typedef struct {
381 } map_trace_t;
382 
383 extern map_main_t map_main;
384 
387 
392 
397 
398 /*
399  * map_get_pfx
400  */
403 {
404  u16 psid = (port >> d->psid_shift) & d->psid_mask;
405 
406  if (d->ea_bits_len == 0 && d->rules)
407  return clib_net_to_host_u64(d->rules[psid].as_u64[0]);
408 
409  u32 suffix = (addr >> d->suffix_shift) & d->suffix_mask;
410  u64 ea = d->ea_bits_len == 0 ? 0 : (((u64) suffix << d->psid_length)) | psid;
411 
412  return clib_net_to_host_u64(d->ip6_prefix.as_u64[0]) | ea << d->ea_shift;
413 }
414 
417 {
418  return clib_host_to_net_u64(map_get_pfx(d, clib_net_to_host_u32(addr),
419  clib_net_to_host_u16(port)));
420 }
421 
422 /*
423  * map_get_sfx
424  */
427 {
428  u16 psid = (port >> d->psid_shift) & d->psid_mask;
429 
430  /* Shared 1:1 mode. */
431  if (d->ea_bits_len == 0 && d->rules)
432  return clib_net_to_host_u64(d->rules[psid].as_u64[1]);
433  if (d->ip6_prefix_len == 128)
434  return clib_net_to_host_u64(d->ip6_prefix.as_u64[1]);
435 
436  if (d->ip6_src_len == 96)
437  return (clib_net_to_host_u64(d->ip6_prefix.as_u64[1]) | addr);
438 
439  /* IPv4 prefix */
440  if (d->flags & MAP_DOMAIN_PREFIX)
441  return (u64) (addr & (0xFFFFFFFF << d->suffix_shift)) << 16;
442 
443  /* Shared or full IPv4 address */
444  return ((u64) addr << 16) | psid;
445 }
446 
449 {
450  return clib_host_to_net_u64(map_get_sfx(d, clib_net_to_host_u32(addr),
451  clib_net_to_host_u16(port)));
452 }
453 
456 {
457  ASSERT(prefix_len == 64 || prefix_len == 96);
458  if (prefix_len == 96)
459  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]));
460  else
461  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]) >> 16);
462 }
463 
465 ip4_map_get_domain (ip4_address_t *addr, u32 *map_domain_index, u8 *error)
466 {
467  map_main_t *mm = &map_main;
468 
469  u32 mdi = mm->ip4_prefix_tbl->lookup(mm->ip4_prefix_tbl, addr, 32);
470  if (mdi == ~0) {
471  *error = MAP_ERROR_NO_DOMAIN;
472  return 0;
473  }
474  *map_domain_index = mdi;
475  return pool_elt_at_index(mm->domains, mdi);
476 }
477 
478 /*
479  * Get the MAP domain from an IPv6 address.
480  * If the IPv6 address or
481  * prefix is shared the IPv4 address must be used.
482  */
485  u32 *map_domain_index,
486  u8 *error)
487 {
488  map_main_t *mm = &map_main;
489  u32 mdi = mm->ip6_src_prefix_tbl->lookup(mm->ip6_src_prefix_tbl, addr, 128);
490  if (mdi == ~0) {
491  *error = MAP_ERROR_NO_DOMAIN;
492  return 0;
493  }
494 
495  *map_domain_index = mdi;
496  return pool_elt_at_index(mm->domains, mdi);
497 }
498 
500 map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id,
501  u8 protocol, u32 **pi_to_drop);
502 void
503 map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop);
504 
505 #define map_ip4_reass_lock() clib_spinlock_lock (&map_main.ip4_reass_lock)
506 #define map_ip4_reass_unlock() clib_spinlock_unlock (&map_main.ip4_reass_lock)
507 
510 {
511  int i;
513  if(r->fragments[i] != ~0) {
514  vec_add1(*pi, r->fragments[i]);
515  r->fragments[i] = ~0;
516  map_main.ip4_reass_buffered_counter--;
517  }
518 }
519 
521 
523 
525 map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id,
526  u8 protocol, u32 **pi_to_drop);
527 void
528 map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop);
529 
530 #define map_ip6_reass_lock() clib_spinlock_lock (&map_main.ip6_reass_lock)
531 #define map_ip6_reass_unlock() clib_spinlock_unlock (&map_main.ip6_reass_lock)
532 
533 int
535  u16 data_offset, u16 next_data_offset,
536  u8 *data_start, u16 data_len);
537 
538 void map_ip4_drop_pi(u32 pi);
539 
540 int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
541 #define MAP_IP4_REASS_CONF_HT_RATIO_MAX 100
542 int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
543 #define MAP_IP4_REASS_CONF_POOL_SIZE_MAX (0xfeff)
544 int map_ip4_reass_conf_lifetime(u16 lifetime_ms);
545 #define MAP_IP4_REASS_CONF_LIFETIME_MAX 0xffff
546 int map_ip4_reass_conf_buffers(u32 buffers);
547 #define MAP_IP4_REASS_CONF_BUFFERS_MAX (0xffffffff)
548 
549 void map_ip6_drop_pi(u32 pi);
550 
551 
552 int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
553 #define MAP_IP6_REASS_CONF_HT_RATIO_MAX 100
554 int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
555 #define MAP_IP6_REASS_CONF_POOL_SIZE_MAX (0xfeff)
556 int map_ip6_reass_conf_lifetime(u16 lifetime_ms);
557 #define MAP_IP6_REASS_CONF_LIFETIME_MAX 0xffff
558 int map_ip6_reass_conf_buffers(u32 buffers);
559 #define MAP_IP6_REASS_CONF_BUFFERS_MAX (0xffffffff)
560 
561 /*
562  * Supports prefix of 96 or 64 (with u-octet)
563  */
566  ip6_address_t *ip6, const ip4_address_t *ip4)
567 {
568  ASSERT(d->ip6_src_len == 96 || d->ip6_src_len == 64); //No support for other lengths for now
569  u8 offset = d->ip6_src_len == 64 ? 9 : 12;
570  ip6->as_u64[0] = d->ip6_src.as_u64[0];
571  ip6->as_u64[1] = d->ip6_src.as_u64[1];
572  clib_memcpy_fast(&ip6->as_u8[offset], ip4, 4);
573 }
574 
577 {
578  ASSERT(d->ip6_src_len == 64 || d->ip6_src_len == 96);
579  u32 x;
580  u8 offset = d->ip6_src_len == 64 ? 9 : 12;
581  clib_memcpy(&x, &addr->as_u8[offset], 4);
582  return x;
583 }
584 
585 static inline void
587 {
588  if (mm->counter_lock)
590  /* zzzz */ ;
591 }
592 
593 static inline void
595 {
596  if (mm->counter_lock)
598 }
599 
600 
604  u32 next)
605 {
606  u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
607  //Deal with fragments that are ready
608  from = pi_vector;
609  n_left_from = vec_len(pi_vector);
610  next_index = node->cached_next_index;
611  while (n_left_from > 0) {
612  vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
613  while (n_left_from > 0 && n_left_to_next > 0) {
614  u32 pi0 = to_next[0] = from[0];
615  from += 1;
616  n_left_from -= 1;
617  to_next += 1;
618  n_left_to_next -= 1;
619  vlib_buffer_t *p0 = vlib_get_buffer(vm, pi0);
620  p0->error = *error;
621  vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next);
622  }
623  vlib_put_next_frame(vm, node, next_index, n_left_to_next);
624  }
625 }
626 
629 {
630  u8 *data;
631  u8 opt_len, opts_len, kind;
632  u16 mss;
633  u16 mss_value_net = clib_host_to_net_u16(mss_clamping);
634 
635  if (!tcp_syn (tcp))
636  return;
637 
638  opts_len = (tcp_doff (tcp) << 2) - sizeof (tcp_header_t);
639  data = (u8 *) (tcp + 1);
640  for (; opts_len > 0; opts_len -= opt_len, data += opt_len)
641  {
642  kind = data[0];
643 
644  if (kind == TCP_OPTION_EOL)
645  break;
646  else if (kind == TCP_OPTION_NOOP)
647  {
648  opt_len = 1;
649  continue;
650  }
651  else
652  {
653  if (opts_len < 2)
654  return;
655  opt_len = data[1];
656 
657  if (opt_len < 2 || opt_len > opts_len)
658  return;
659  }
660 
661  if (kind == TCP_OPTION_MSS)
662  {
663  mss = *(u16 *) (data + 2);
664  if (clib_net_to_host_u16 (mss) > mss_clamping)
665  {
666  *sum =
667  ip_csum_update (*sum, mss, mss_value_net, ip4_header_t,
668  length);
669  clib_memcpy (data + 2, &mss_value_net, 2);
670  }
671  return;
672  }
673  }
674 }
675 
676 /*
677  * fd.io coding-style-patch-verification: ON
678  *
679  * Local Variables:
680  * eval: (c-set-style "gnu")
681  * End:
682  */
u16 forwarded
Definition: map.h:219
typedef ip6_prefix
Definition: ip_types.api:100
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:1607
int map_param_set_icmp(ip4_address_t *ip4_err_relay_src)
Definition: map_api.c:284
u8 psid_length
Definition: map.h:120
map_ip4_reass_t * ip4_reass_pool
Definition: map.h:304
int map_ip4_reass_add_fragment(map_ip4_reass_t *r, u32 pi)
Definition: map.c:1516
u32 ip4_reass_conf_buffers
Definition: map.h:301
End of options.
Definition: tcp_packet.h:104
fib_node_t node
Linkage into the FIB graph.
Definition: map.h:238
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:60
u32 flags
Definition: vhost_user.h:141
map_domain_flags_e flags
Definition: map.h:115
u16 fifo_prev
Definition: map.h:223
clib_spinlock_t ip4_reass_lock
Definition: map.h:309
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:402
u16 ip4_reass_allocated
Definition: map.h:306
volatile u32 * counter_lock
Definition: map.h:271
u8 ip4_reass_ht_log2len
Definition: map.h:305
u32 fragments[MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY]
Definition: map.h:175
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:608
u16 bucket_next
Definition: map.h:222
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:369
u16 msg_id_base
Definition: map.h:274
#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:253
int map_ip4_reass_conf_buffers(u32 buffers)
Definition: map.c:1846
vlib_main_t * vlib_main
Definition: map.h:291
#define tcp_doff(_th)
Definition: tcp_packet.h:78
int map_ip6_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1922
u8 tc
Definition: map.h:277
int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1807
static_always_inline map_domain_t * ip6_map_get_domain(ip6_address_t *addr, u32 *map_domain_index, u8 *error)
Definition: map.h:484
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, u8 *tag)
Definition: map.c:108
A pre-resolved next-hop.
Definition: map.h:233
#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:594
vl_api_address_t src
Definition: gre.api:51
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:465
u32 suffix_mask
Definition: map.h:111
bool sec_check_frag
Definition: map.h:281
u32 ip4_reass_buffered_counter
Definition: map.h:312
uword ip_csum_t
Definition: ip_packet.h:219
u8 data[128]
Definition: ipsec.api:249
uword * bm_trans_enabled_by_sw_if
Definition: map.h:338
No operation.
Definition: tcp_packet.h:105
u16 ip4_reass_fifo_last
Definition: map.h:308
struct _tcp_header tcp_header_t
vhost_vring_addr_t addr
Definition: vhost_user.h:147
unsigned char u8
Definition: types.h:56
map_ip6_reass_t * ip6_reass_pool
Definition: map.h:327
u16 port
Definition: map.h:380
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:565
#define MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY
Definition: map.h:85
static_always_inline u32 ip6_map_t_embedded_address(map_domain_t *d, ip6_address_t *addr)
Definition: map.h:576
bool tc_copy
Definition: map.h:278
#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:455
vl_api_interface_index_t sw_if_index
Definition: gre.api:50
map_ip4_reass_key_t key
Definition: map.h:164
u16 bucket
Definition: map.h:221
vlib_combined_counter_main_t * domain_counters
Definition: map.h:270
ip4_address_t icmp4_src_address
Definition: map.h:287
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:602
u16 fifo_next
Definition: map.h:174
vlib_simple_counter_main_t icmp_relayed
Definition: map.h:288
int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1824
ip6_address_t * rules
Definition: map.h:110
int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1890
u8 ea_bits_len
Definition: map.h:118
unsigned int u32
Definition: types.h:88
A collection of simple counters.
Definition: counter.h:57
u8 ip6_prefix_len
Definition: map.h:116
int map_ip6_reass_conf_buffers(u32 buffers)
Definition: map.c:1929
#define clib_atomic_test_and_set(a)
Definition: atomics.h:42
u16 ip6_reass_allocated
Definition: map.h:329
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:446
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:170
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:1435
#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:105
#define clib_atomic_release(a)
Definition: atomics.h:43
int map_add_del_psid(u32 map_domain_index, u16 psid, ip6_address_t *tep, bool is_add)
Definition: map.c:238
bool frag_ignore_df
Definition: map.h:315
vl_api_ip_proto_t protocol
Definition: punt.api:39
int map_param_set_traffic_class(bool copy, u8 tc)
Definition: map_api.c:507
static_always_inline u64 map_get_pfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:416
unsigned short u16
Definition: types.h:57
u16 ip4_reass_conf_pool_size
Definition: map.h:299
map_domain_t * domains
Definition: map.h:265
int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1907
u16 bucket
Definition: map.h:171
static_always_inline u64 map_get_sfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:448
u16 * ip6_reass_hash_table
Definition: map.h:330
u16 * ip4_reass_hash_table
Definition: map.h:307
u16 port
Definition: punt.api:40
map_main_t map_main
Definition: map.c:27
#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:295
vl_api_address_t dst
Definition: gre.api:52
u8 ip6_src_len
Definition: map.h:117
#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:123
u16 expected_total
Definition: map.h:167
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:124
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:328
u16 ip6_reass_fifo_last
Definition: map.h:331
lpm_t * ip6_src_prefix_tbl
Definition: map.h:344
u16 ip6_reass_conf_pool_size
Definition: map.h:322
u8 next_data_len
Definition: map.h:210
void map_ip4_drop_pi(u32 pi)
Definition: ip6_map.c:661
ip4_address_t ip4_prefix
Definition: map.h:112
u16 next_data_offset
Definition: map.h:209
static_always_inline void map_ip4_reass_get_fragments(map_ip4_reass_t *r, u32 **pi)
Definition: map.h:509
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:339
u8 psid_offset
Definition: map.h:119
void map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1555
u16 forwarded
Definition: map.h:168
bool icmp6_enabled
Definition: map.h:282
int map_param_set_fragmentation(bool inner, bool ignore_df)
Definition: map_api.c:259
u32 sibling
This object sibling index on the FIB entry&#39;s child dependency list.
Definition: map.h:248
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
map_domain_counter_t
Definition: map.h:181
map_ip6_reass_key_t key
Definition: map.h:215
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:350
clib_spinlock_t ip6_reass_lock
Definition: map.h:332
ip6_address_t ip6_src
Definition: map.h:108
static void map_domain_counter_lock(map_main_t *mm)
Definition: map.h:586
f32 ip4_reass_conf_ht_ratio
Definition: map.h:298
void map_pre_resolve(ip4_address_t *ip4, ip6_address_t *ip6, bool is_del)
Definition: map.c:410
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:280
bool frag_inner
Definition: map.h:314
u16 psid_mask
Definition: map.h:113
STATIC_ASSERT((sizeof(map_domain_t)<=CLIB_CACHE_LINE_BYTES),"MAP domain fits in one cacheline")
ip4_header_t ip4_header
Definition: map.h:225
u8 ea_shift
Definition: map.h:125
void map_ip6_drop_pi(u32 pi)
Definition: ip6_map.c:652
ip6_address_t ip6_prefix
Definition: map.h:109
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:628
f32 ip6_reass_conf_ht_ratio
Definition: map.h:321
u8 * format_map_trace(u8 *s, va_list *args)
Definition: map.c:1355
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:292
int map_param_set_security_check(bool enable, bool fragments)
Definition: map_api.c:482
u16 mtu
Definition: map.h:114
int map_param_set_icmp6(u8 enable_unreachable)
Definition: map_api.c:311
#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:707
u16 ip6_reass_conf_lifetime_ms
Definition: map.h:323
fib_node_index_t fei
The FIB entry index of the next-hop.
Definition: map.h:243
map_domain_extra_t * domain_extras
Definition: map.h:266
i32 port
Definition: map.h:170
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:269
u16 tcp_mss
Definition: map.h:284
lpm_t * ip4_prefix_tbl
Definition: map.h:342
A collection of combined counters.
Definition: counter.h:188
u16 bucket_next
Definition: map.h:172
#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:128
vlib_simple_counter_main_t * simple_domain_counters
Definition: map.h:269
u64 map_error_counter_get(u32 node_index, map_error_t map_error)
Definition: map.c:1080
int map_param_set_tcp(u16 tcp_mss)
Definition: map_api.c:532
#define MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY
Definition: map.h:92
void map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1392
u16 ip4_reass_conf_lifetime_ms
Definition: map.h:300
int map_delete_domain(u32 map_domain_index)
Definition: map.c:207
static_always_inline u64 map_get_sfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:426
u32 map_domain_index
Definition: map.h:379
u16 fifo_prev
Definition: map.h:173
int map_ip4_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1839
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:349
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:335
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
lpm_t * ip6_prefix_tbl
Definition: map.h:343
u16 expected_total
Definition: map.h:218
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:1695
struct map_main_pre_resolved_t_ map_main_pre_resolved_t
A pre-resolved next-hop.
u16 fifo_next
Definition: map.h:224
#define CLIB_PACKED(x)
Definition: clib.h:81
u32 ip6_reass_conf_buffers
Definition: map.h:324