FD.io VPP  v19.01.3-6-g70449b9b9
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);
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, those are mutually exclusive.
101  */
102 typedef struct
103 {
104  /* Required for pool_get_aligned */
105  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
119 
120  /* helpers */
124 
125  /* not used by forwarding */
127 } map_domain_t;
128 
130  "MAP domain fits in one cacheline");
131 
132 #define MAP_REASS_INDEX_NONE ((u16)0xffff)
133 
134 /*
135  * Hash key, padded out to 16 bytes for fast compare
136  */
137 /* *INDENT-OFF* */
138 typedef union {
139  CLIB_PACKED (struct {
142  u16 fragment_id;
143  u8 protocol;
144  });
146  u32 as_u32[4];
148 /* *INDENT-ON* */
149 
150 typedef struct
151 {
154 #ifdef MAP_IP4_REASS_COUNT_BYTES
157 #endif
165 
166 /*
167  * MAP domain counters
168  */
169 typedef enum
170 {
171  /* Simple counters */
173  /* Combined counters */
178 
179 /*
180  * main_main_t
181  */
182 /* *INDENT-OFF* */
183 typedef union {
184  CLIB_PACKED (struct {
187  u32 fragment_id;
188  u8 protocol;
189  });
191  u32 as_u32[10];
193 /* *INDENT-OFF* */
194 
195 typedef struct {
196  u32 pi; //Cached packet or ~0
197  u16 next_data_offset; //The data offset of the additional 20 bytes or ~0
198  u8 next_data_len; //Number of bytes ready to be copied (20 if not last fragment)
199  u8 next_data[20]; //The 20 additional bytes
201 
202 typedef struct {
205 #ifdef MAP_IP6_REASS_COUNT_BYTES
208 #endif
209  u16 bucket; //What hash bucket this element is linked in
216 
217 #ifdef MAP_SKIP_IP6_LOOKUP
218 /**
219  * A pre-resolved next-hop
220  */
222 {
223  /**
224  * Linkage into the FIB graph
225  */
227 
228  /**
229  * The FIB entry index of the next-hop
230  */
232 
233  /**
234  * This object sibling index on the FIB entry's child dependency list
235  */
237 
238  /**
239  * The Load-balance object index to use to forward
240  */
243 
244 /**
245  * Pre-resolved next hops for v4 and v6. Why these are global and not
246  * per-domain is beyond me.
247  */
248 extern map_main_pre_resolved_t pre_resolved[FIB_PROTOCOL_MAX];
249 #endif
250 
251 typedef struct {
252  /* pool of MAP domains */
254 
255  /* MAP Domain packet/byte counters indexed by map domain index */
258  volatile u32 *counter_lock;
259 
260  /* API message id base */
262 
263  /* Traffic class: zero, copy (~0) or fixed value */
265  bool tc_copy;
266 
267  bool sec_check; /* Inbound security check */
268  bool sec_check_frag; /* Inbound security check for (subsequent) fragments */
269  bool icmp6_enabled; /* Send destination unreachable for security check failure */
270 
271  u16 tcp_mss; /* TCP MSS clamp value */
272 
273  /* ICMPv6 -> ICMPv4 relay parameters */
276 
277  /* convenience */
280 
281  /*
282  * IPv4 encap and decap reassembly
283  */
284  /* Configuration */
285  f32 ip4_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
286  u16 ip4_reass_conf_pool_size; //Max number of allocated reass structures
287  u16 ip4_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
288  u32 ip4_reass_conf_buffers; //Maximum number of buffers used by ip4 reassembly
289 
290  /* Runtime */
292  u8 ip4_reass_ht_log2len; //Hash table size is 2^log2len
296  volatile u32 *ip4_reass_lock;
297 
298  /* Counters */
300 
301  bool frag_inner; /* Inner or outer fragmentation */
302  bool frag_ignore_df; /* Fragment (outer) packet even if DF is set */
303 
304  /*
305  * IPv6 decap reassembly
306  */
307  /* Configuration */
308  f32 ip6_reass_conf_ht_ratio; //Size of ht is 2^ceil(log2(ratio*pool_size))
309  u16 ip6_reass_conf_pool_size; //Max number of allocated reass structures
310  u16 ip6_reass_conf_lifetime_ms; //Time a reassembly struct is considered valid in ms
311  u32 ip6_reass_conf_buffers; //Maximum number of buffers used by ip6 reassembly
312 
313  /* Runtime */
315  u8 ip6_reass_ht_log2len; //Hash table size is 2^log2len
319  volatile u32 *ip6_reass_lock;
320 
321  /* Counters */
323 
324  /* Graph node state */
327 
328  /* Lookup tables */
332 } map_main_t;
333 
334 /*
335  * MAP Error counters/messages
336  */
337 #define foreach_map_error \
338  /* Must be first. */ \
339  _(NONE, "valid MAP packets") \
340  _(BAD_PROTOCOL, "bad protocol") \
341  _(SEC_CHECK, "security check failed") \
342  _(ENCAP_SEC_CHECK, "encap security check failed") \
343  _(DECAP_SEC_CHECK, "decap security check failed") \
344  _(ICMP, "unable to translate ICMP") \
345  _(ICMP_RELAY, "unable to relay ICMP") \
346  _(UNKNOWN, "unknown") \
347  _(NO_BINDING, "no binding") \
348  _(NO_DOMAIN, "no domain") \
349  _(FRAGMENTED, "packet is a fragment") \
350  _(FRAGMENT_MEMORY, "could not cache fragment") \
351  _(FRAGMENT_MALFORMED, "fragment has unexpected format")\
352  _(FRAGMENT_DROPPED, "dropped cached fragment") \
353  _(MALFORMED, "malformed packet") \
354  _(DF_SET, "can't fragment, DF set")
355 
356 typedef enum {
357 #define _(sym,str) MAP_ERROR_##sym,
359 #undef _
361  } map_error_t;
362 
363 u64 map_error_counter_get(u32 node_index, map_error_t map_error);
364 
365 typedef struct {
368 } map_trace_t;
369 
370 extern map_main_t map_main;
371 
374 
379 
384 
385 /*
386  * map_get_pfx
387  */
390 {
391  u16 psid = (port >> d->psid_shift) & d->psid_mask;
392 
393  if (d->ea_bits_len == 0 && d->rules)
394  return clib_net_to_host_u64(d->rules[psid].as_u64[0]);
395 
396  u32 suffix = (addr >> d->suffix_shift) & d->suffix_mask;
397  u64 ea = d->ea_bits_len == 0 ? 0 : (((u64) suffix << d->psid_length)) | psid;
398 
399  return clib_net_to_host_u64(d->ip6_prefix.as_u64[0]) | ea << d->ea_shift;
400 }
401 
404 {
405  return clib_host_to_net_u64(map_get_pfx(d, clib_net_to_host_u32(addr),
406  clib_net_to_host_u16(port)));
407 }
408 
409 /*
410  * map_get_sfx
411  */
414 {
415  u16 psid = (port >> d->psid_shift) & d->psid_mask;
416 
417  /* Shared 1:1 mode. */
418  if (d->ea_bits_len == 0 && d->rules)
419  return clib_net_to_host_u64(d->rules[psid].as_u64[1]);
420  if (d->ip6_prefix_len == 128)
421  return clib_net_to_host_u64(d->ip6_prefix.as_u64[1]);
422 
423  if (d->ip6_src_len == 96)
424  return (clib_net_to_host_u64(d->ip6_prefix.as_u64[1]) | addr);
425 
426  /* IPv4 prefix */
427  if (d->flags & MAP_DOMAIN_PREFIX)
428  return (u64) (addr & (0xFFFFFFFF << d->suffix_shift)) << 16;
429 
430  /* Shared or full IPv4 address */
431  return ((u64) addr << 16) | psid;
432 }
433 
436 {
437  return clib_host_to_net_u64(map_get_sfx(d, clib_net_to_host_u32(addr),
438  clib_net_to_host_u16(port)));
439 }
440 
443 {
444  ASSERT(prefix_len == 64 || prefix_len == 96);
445  if (prefix_len == 96)
446  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]));
447  else
448  return clib_host_to_net_u32(clib_net_to_host_u64(addr->as_u64[1]) >> 16);
449 }
450 
452 ip4_map_get_domain (ip4_address_t *addr, u32 *map_domain_index, u8 *error)
453 {
454  map_main_t *mm = &map_main;
455 
456  u32 mdi = mm->ip4_prefix_tbl->lookup(mm->ip4_prefix_tbl, addr, 32);
457  if (mdi == ~0) {
458  *error = MAP_ERROR_NO_DOMAIN;
459  return 0;
460  }
461  *map_domain_index = mdi;
462  return pool_elt_at_index(mm->domains, mdi);
463 }
464 
465 /*
466  * Get the MAP domain from an IPv6 address.
467  * If the IPv6 address or
468  * prefix is shared the IPv4 address must be used.
469  */
472  u32 *map_domain_index,
473  u8 *error)
474 {
475  map_main_t *mm = &map_main;
476  u32 mdi = mm->ip6_src_prefix_tbl->lookup(mm->ip6_src_prefix_tbl, addr, 128);
477  if (mdi == ~0) {
478  *error = MAP_ERROR_NO_DOMAIN;
479  return 0;
480  }
481 
482  *map_domain_index = mdi;
483  return pool_elt_at_index(mm->domains, mdi);
484 }
485 
487 map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id,
488  u8 protocol, u32 **pi_to_drop);
489 void
490 map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop);
491 
492 #define map_ip4_reass_lock() while (clib_atomic_test_and_set (map_main.ip4_reass_lock)) {}
493 #define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0)
494 
497 {
498  int i;
500  if(r->fragments[i] != ~0) {
501  vec_add1(*pi, r->fragments[i]);
502  r->fragments[i] = ~0;
503  map_main.ip4_reass_buffered_counter--;
504  }
505 }
506 
508 
510 
512 map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id,
513  u8 protocol, u32 **pi_to_drop);
514 void
515 map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop);
516 
517 #define map_ip6_reass_lock() while (clib_atomic_test_and_set (map_main.ip6_reass_lock)) {}
518 #define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0)
519 
520 int
522  u16 data_offset, u16 next_data_offset,
523  u8 *data_start, u16 data_len);
524 
525 void map_ip4_drop_pi(u32 pi);
526 
527 int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
528 #define MAP_IP4_REASS_CONF_HT_RATIO_MAX 100
529 int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
530 #define MAP_IP4_REASS_CONF_POOL_SIZE_MAX (0xfeff)
531 int map_ip4_reass_conf_lifetime(u16 lifetime_ms);
532 #define MAP_IP4_REASS_CONF_LIFETIME_MAX 0xffff
533 int map_ip4_reass_conf_buffers(u32 buffers);
534 #define MAP_IP4_REASS_CONF_BUFFERS_MAX (0xffffffff)
535 
536 void map_ip6_drop_pi(u32 pi);
537 
538 
539 int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets);
540 #define MAP_IP6_REASS_CONF_HT_RATIO_MAX 100
541 int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets);
542 #define MAP_IP6_REASS_CONF_POOL_SIZE_MAX (0xfeff)
543 int map_ip6_reass_conf_lifetime(u16 lifetime_ms);
544 #define MAP_IP6_REASS_CONF_LIFETIME_MAX 0xffff
545 int map_ip6_reass_conf_buffers(u32 buffers);
546 #define MAP_IP6_REASS_CONF_BUFFERS_MAX (0xffffffff)
547 
548 /*
549  * Supports prefix of 96 or 64 (with u-octet)
550  */
553  ip6_address_t *ip6, const ip4_address_t *ip4)
554 {
555  ASSERT(d->ip6_src_len == 96 || d->ip6_src_len == 64); //No support for other lengths for now
556  u8 offset = d->ip6_src_len == 64 ? 9 : 12;
557  ip6->as_u64[0] = d->ip6_src.as_u64[0];
558  ip6->as_u64[1] = d->ip6_src.as_u64[1];
559  clib_memcpy_fast(&ip6->as_u8[offset], ip4, 4);
560 }
561 
564 {
565  ASSERT(d->ip6_src_len == 64 || d->ip6_src_len == 96);
566  u32 x;
567  u8 offset = d->ip6_src_len == 64 ? 9 : 12;
568  clib_memcpy(&x, &addr->as_u8[offset], 4);
569  return x;
570 }
571 
572 static inline void
574 {
575  if (mm->counter_lock)
577  /* zzzz */ ;
578 }
579 static inline void
581 {
582  if (mm->counter_lock)
584 }
585 
586 
590  u32 next)
591 {
592  u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
593  //Deal with fragments that are ready
594  from = pi_vector;
595  n_left_from = vec_len(pi_vector);
596  next_index = node->cached_next_index;
597  while (n_left_from > 0) {
598  vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
599  while (n_left_from > 0 && n_left_to_next > 0) {
600  u32 pi0 = to_next[0] = from[0];
601  from += 1;
602  n_left_from -= 1;
603  to_next += 1;
604  n_left_to_next -= 1;
605  vlib_buffer_t *p0 = vlib_get_buffer(vm, pi0);
606  p0->error = *error;
607  vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next);
608  }
609  vlib_put_next_frame(vm, node, next_index, n_left_to_next);
610  }
611 }
612 
615 {
616  u8 *data;
617  u8 opt_len, opts_len, kind;
618  u16 mss;
619  u16 mss_value_net = clib_host_to_net_u16(mss_clamping);
620 
621  if (!tcp_syn (tcp))
622  return;
623 
624  opts_len = (tcp_doff (tcp) << 2) - sizeof (tcp_header_t);
625  data = (u8 *) (tcp + 1);
626  for (; opts_len > 0; opts_len -= opt_len, data += opt_len)
627  {
628  kind = data[0];
629 
630  if (kind == TCP_OPTION_EOL)
631  break;
632  else if (kind == TCP_OPTION_NOOP)
633  {
634  opt_len = 1;
635  continue;
636  }
637  else
638  {
639  if (opts_len < 2)
640  return;
641  opt_len = data[1];
642 
643  if (opt_len < 2 || opt_len > opts_len)
644  return;
645  }
646 
647  if (kind == TCP_OPTION_MSS)
648  {
649  mss = *(u16 *) (data + 2);
650  if (clib_net_to_host_u16 (mss) > mss_clamping)
651  {
652  *sum =
653  ip_csum_update (*sum, mss, mss_value_net, ip4_header_t,
654  length);
655  clib_memcpy (data + 2, &mss_value_net, 2);
656  }
657  return;
658  }
659  }
660 }
661 
662 /*
663  * fd.io coding-style-patch-verification: ON
664  *
665  * Local Variables:
666  * eval: (c-set-style "gnu")
667  * End:
668  */
u16 forwarded
Definition: map.h:207
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:1555
int map_param_set_icmp(ip4_address_t *ip4_err_relay_src)
Definition: map_api.c:275
u8 psid_length
Definition: map.h:118
map_ip4_reass_t * ip4_reass_pool
Definition: map.h:291
int map_ip4_reass_add_fragment(map_ip4_reass_t *r, u32 pi)
Definition: map.c:1464
u32 ip4_reass_conf_buffers
Definition: map.h:288
End of options.
Definition: tcp_packet.h:104
fib_node_t node
Linkage into the FIB graph.
Definition: map.h:226
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:60
u32 flags
Definition: vhost_user.h:115
vl_api_address_t src
Definition: vxlan_gbp.api:32
map_domain_flags_e flags
Definition: map.h:113
u16 fifo_prev
Definition: map.h:211
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:389
u16 ip4_reass_allocated
Definition: map.h:293
volatile u32 * ip6_reass_lock
Definition: map.h:319
volatile u32 * counter_lock
Definition: map.h:258
u8 ip4_reass_ht_log2len
Definition: map.h:292
u32 fragments[MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY]
Definition: map.h:163
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:601
u16 bucket_next
Definition: map.h:210
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:356
u16 msg_id_base
Definition: map.h:261
#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:241
int map_ip4_reass_conf_buffers(u32 buffers)
Definition: map.c:1794
vlib_main_t * vlib_main
Definition: map.h:278
#define tcp_doff(_th)
Definition: tcp_packet.h:78
int map_ip6_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1870
u8 tc
Definition: map.h:264
int map_ip4_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1755
static_always_inline map_domain_t * ip6_map_get_domain(ip6_address_t *addr, u32 *map_domain_index, u8 *error)
Definition: map.h:471
A pre-resolved next-hop.
Definition: map.h:221
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:525
static void map_domain_counter_unlock(map_main_t *mm)
Definition: map.h:580
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:452
u32 suffix_mask
Definition: map.h:109
bool sec_check_frag
Definition: map.h:268
u32 ip4_reass_buffered_counter
Definition: map.h:299
uword ip_csum_t
Definition: ip_packet.h:181
uword * bm_trans_enabled_by_sw_if
Definition: map.h:325
No operation.
Definition: tcp_packet.h:105
u16 ip4_reass_fifo_last
Definition: map.h:295
struct _tcp_header tcp_header_t
vhost_vring_addr_t addr
Definition: vhost_user.h:121
unsigned char u8
Definition: types.h:56
map_ip6_reass_t * ip6_reass_pool
Definition: map.h:314
u16 port
Definition: map.h:367
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:552
#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:563
bool tc_copy
Definition: map.h:265
#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:442
map_ip4_reass_key_t key
Definition: map.h:152
u32 sw_if_index
Definition: vxlan_gbp.api:37
u16 bucket
Definition: map.h:209
vlib_combined_counter_main_t * domain_counters
Definition: map.h:257
ip4_address_t icmp4_src_address
Definition: map.h:274
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:588
u16 fifo_next
Definition: map.h:162
vlib_simple_counter_main_t icmp_relayed
Definition: map.h:275
int map_ip4_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1772
ip6_address_t * rules
Definition: map.h:108
int map_ip6_reass_conf_ht_ratio(f32 ht_ratio, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1838
u8 ea_bits_len
Definition: map.h:116
unsigned int u32
Definition: types.h:88
A collection of simple counters.
Definition: counter.h:57
u8 ip6_prefix_len
Definition: map.h:114
int map_ip6_reass_conf_buffers(u32 buffers)
Definition: map.c:1877
#define clib_atomic_test_and_set(a)
Definition: atomics.h:40
u16 ip6_reass_allocated
Definition: map.h:316
static void mss_clamping(snat_main_t *sm, tcp_header_t *tcp, ip_csum_t *sum)
Definition: nat_inlines.h:347
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:1383
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:511
typedef ip4_prefix
Definition: ip_types.api:52
#define clib_atomic_release(a)
Definition: atomics.h:41
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:64
int map_add_del_psid(u32 map_domain_index, u16 psid, ip6_address_t *tep, bool is_add)
Definition: map.c:186
bool frag_ignore_df
Definition: map.h:302
volatile u32 * ip4_reass_lock
Definition: map.h:296
int map_param_set_traffic_class(bool copy, u8 tc)
Definition: map_api.c:498
static_always_inline u64 map_get_pfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:403
unsigned short u16
Definition: types.h:57
u16 ip4_reass_conf_pool_size
Definition: map.h:286
map_domain_t * domains
Definition: map.h:253
int map_ip6_reass_conf_pool_size(u16 pool_size, u32 *trashed_reass, u32 *dropped_packets)
Definition: map.c:1855
u16 bucket
Definition: map.h:159
static_always_inline u64 map_get_sfx_net(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:435
u16 * ip6_reass_hash_table
Definition: map.h:317
u16 * ip4_reass_hash_table
Definition: map.h:294
map_main_t map_main
Definition: map.c:26
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:115
#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:121
u16 expected_total
Definition: map.h:155
vlib_error_t error
Error code for buffers to be enqueued to error handler.
Definition: buffer.h:139
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:122
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:315
u16 ip6_reass_fifo_last
Definition: map.h:318
lpm_t * ip6_src_prefix_tbl
Definition: map.h:331
u16 ip6_reass_conf_pool_size
Definition: map.h:309
u8 next_data_len
Definition: map.h:198
void map_ip4_drop_pi(u32 pi)
Definition: ip6_map.c:661
ip4_address_t ip4_prefix
Definition: map.h:110
u16 next_data_offset
Definition: map.h:197
static_always_inline void map_ip4_reass_get_fragments(map_ip4_reass_t *r, u32 **pi)
Definition: map.h:496
vl_api_address_t dst
Definition: vxlan_gbp.api:33
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:326
u8 psid_offset
Definition: map.h:117
void map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop)
Definition: map.c:1503
u16 forwarded
Definition: map.h:156
bool icmp6_enabled
Definition: map.h:269
int map_param_set_fragmentation(bool inner, bool ignore_df)
Definition: map_api.c:250
u32 sibling
This object sibling index on the FIB entry&#39;s child dependency list.
Definition: map.h:236
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
map_domain_counter_t
Definition: map.h:169
map_ip6_reass_key_t key
Definition: map.h:203
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:452
#define foreach_map_error
Definition: map.h:337
ip6_address_t ip6_src
Definition: map.h:106
static void map_domain_counter_lock(map_main_t *mm)
Definition: map.h:573
f32 ip4_reass_conf_ht_ratio
Definition: map.h:285
void map_pre_resolve(ip4_address_t *ip4, ip6_address_t *ip6, bool is_del)
Definition: map.c:365
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:537
#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:267
bool frag_inner
Definition: map.h:301
u16 psid_mask
Definition: map.h:111
ip4_header_t ip4_header
Definition: map.h:213
u8 ea_shift
Definition: map.h:123
void map_ip6_drop_pi(u32 pi)
Definition: ip6_map.c:652
ip6_address_t ip6_prefix
Definition: map.h:107
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:614
f32 ip6_reass_conf_ht_ratio
Definition: map.h:308
u8 * format_map_trace(u8 *s, va_list *args)
Definition: map.c:1303
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:279
int map_param_set_security_check(bool enable, bool fragments)
Definition: map_api.c:473
u16 mtu
Definition: map.h:112
int map_param_set_icmp6(u8 enable_unreachable)
Definition: map_api.c:302
#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:700
u16 ip6_reass_conf_lifetime_ms
Definition: map.h:310
fib_node_index_t fei
The FIB entry index of the next-hop.
Definition: map.h:231
i32 port
Definition: map.h:158
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:271
lpm_t * ip4_prefix_tbl
Definition: map.h:329
A collection of combined counters.
Definition: counter.h:188
u16 bucket_next
Definition: map.h:160
#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:126
vlib_simple_counter_main_t * simple_domain_counters
Definition: map.h:256
u64 map_error_counter_get(u32 node_index, map_error_t map_error)
Definition: map.c:1028
int map_param_set_tcp(u16 tcp_mss)
Definition: map_api.c:523
#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:1340
u16 ip4_reass_conf_lifetime_ms
Definition: map.h:287
int map_delete_domain(u32 map_domain_index)
Definition: map.c:158
static_always_inline u64 map_get_sfx(map_domain_t *d, u32 addr, u16 port)
Definition: map.h:413
u32 map_domain_index
Definition: map.h:366
u16 fifo_prev
Definition: map.h:161
int map_ip4_reass_conf_lifetime(u16 lifetime_ms)
Definition: map.c:1787
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:340
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:322
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
lpm_t * ip6_prefix_tbl
Definition: map.h:330
u16 expected_total
Definition: map.h:206
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:62
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:1643
struct map_main_pre_resolved_t_ map_main_pre_resolved_t
A pre-resolved next-hop.
u16 fifo_next
Definition: map.h:212
#define CLIB_PACKED(x)
Definition: clib.h:81
u32 ip6_reass_conf_buffers
Definition: map.h:311