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Vector Packet Processing
ethernet.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 /*
16  * ethernet.h: types/functions for ethernet.
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #ifndef included_ethernet_h
41 #define included_ethernet_h
42 
43 #include <vnet/vnet.h>
44 #include <vnet/ethernet/packet.h>
46 #include <vnet/pg/pg.h>
47 #include <vnet/feature/feature.h>
48 
49 /* ethernet-input frame flags and scalar data */
50 
51 /* all packets in frame share same sw_if_index */
52 #define ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX (1 << 0)
53 
54 /* all ip4 packets in frame have correct ip4 checksum */
55 #define ETH_INPUT_FRAME_F_IP4_CKSUM_OK (1 << 1)
56 
57 typedef struct
58 {
62 
63 #ifdef CLIB_HAVE_VEC128
64 static const u16x8 tagged_ethertypes = {
65  (u16) ETHERNET_TYPE_VLAN,
66  (u16) ETHERNET_TYPE_DOT1AD,
67  (u16) ETHERNET_TYPE_VLAN_9100,
68  (u16) ETHERNET_TYPE_VLAN_9200,
69  /* duplicate last one to fill register */
70  (u16) ETHERNET_TYPE_VLAN_9200,
71  (u16) ETHERNET_TYPE_VLAN_9200,
72  (u16) ETHERNET_TYPE_VLAN_9200,
73  (u16) ETHERNET_TYPE_VLAN_9200
74 };
75 #endif
76 
79 {
80 #ifdef CLIB_HAVE_VEC128
81  return !u16x8_is_all_zero (tagged_ethertypes == u16x8_splat (type));
82 #else
83  if ((type == ETHERNET_TYPE_VLAN) ||
84  (type == ETHERNET_TYPE_DOT1AD) ||
85  (type == ETHERNET_TYPE_VLAN_9100) || (type == ETHERNET_TYPE_VLAN_9200))
86  return 1;
87 #endif
88  return 0;
89 }
90 
93 {
94 #ifdef CLIB_HAVE_VEC128
95  u16x8 r0 = (tagged_ethertypes == u16x8_splat (type0));
96  u16x8 r1 = (tagged_ethertypes == u16x8_splat (type1));
97  return !u16x8_is_all_zero (r0 | r1);
98 #else
99  return ethernet_frame_is_tagged (type0) || ethernet_frame_is_tagged (type1);
100 #endif
101 }
102 
104 ethernet_frame_is_any_tagged_x4 (u16 type0, u16 type1, u16 type2, u16 type3)
105 {
106 #ifdef CLIB_HAVE_VEC128
107  u16x8 r0 = (tagged_ethertypes == u16x8_splat (type0));
108  u16x8 r1 = (tagged_ethertypes == u16x8_splat (type1));
109  u16x8 r2 = (tagged_ethertypes == u16x8_splat (type2));
110  u16x8 r3 = (tagged_ethertypes == u16x8_splat (type3));
111  return !u16x8_is_all_zero (r0 | r1 | r2 | r3);
112 #else
113  return ethernet_frame_is_tagged (type0) || ethernet_frame_is_tagged (type1)
115 #endif
116 }
117 
118 /* Max. sized ethernet/vlan header for parsing. */
119 typedef struct
120 {
122 
123  /* Allow up to 2 stacked vlan headers. */
126 
127 struct vnet_hw_interface_t;
128 /* Ethernet flag change callback. */
131 
132 #define ETHERNET_MIN_PACKET_BYTES 64
133 #define ETHERNET_MAX_PACKET_BYTES 9216
134 
135 /* Ethernet interface instance. */
136 typedef struct ethernet_interface
137 {
139 
140  /* Accept all packets (promiscuous mode). */
141 #define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL (1 << 0)
142 #define ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC(flags) \
143  (((flags) & ~ETHERNET_INTERFACE_FLAG_ACCEPT_ALL) == 0)
144 
145  /* Change MTU on interface from hw interface structure */
146 #define ETHERNET_INTERFACE_FLAG_MTU (1 << 1)
147 #define ETHERNET_INTERFACE_FLAG_CONFIG_MTU(flags) \
148  ((flags) & ETHERNET_INTERFACE_FLAG_MTU)
149 
150  /* Callback, e.g. to turn on/off promiscuous mode */
152 
154 
155  /* Ethernet (MAC) address for this interface. */
158 
160 
161 typedef struct
162 {
163  /* Name (a c string). */
164  char *name;
165 
166  /* Ethernet type in host byte order. */
168 
169  /* Node which handles this type. */
171 
172  /* Next index for this type. */
175 
176 typedef enum
177 {
178 #define ethernet_error(n,c,s) ETHERNET_ERROR_##n,
179 #include <vnet/ethernet/error.def>
180 #undef ethernet_error
183 
184 
185 // Structs used when parsing packet to find sw_if_index
186 
187 typedef struct
188 {
191  // config entry is-valid flag
192  // exact match flags (valid if packet has 0/1/2/3 tags)
193  // L2 vs L3 forwarding mode
194 #define SUBINT_CONFIG_MATCH_0_TAG (1<<0)
195 #define SUBINT_CONFIG_MATCH_1_TAG (1<<1)
196 #define SUBINT_CONFIG_MATCH_2_TAG (1<<2)
197 #define SUBINT_CONFIG_MATCH_3_TAG (1<<3)
198 #define SUBINT_CONFIG_VALID (1<<4)
199 #define SUBINT_CONFIG_L2 (1<<5)
200 #define SUBINT_CONFIG_P2P (1<<6)
201 
203 
206 {
207  return SUBINT_CONFIG_VALID | (1 << num_tags);
208 }
209 
210 
211 typedef struct
212 {
215  u16 dot1q_vlans; // pool id for vlan table
216  u16 dot1ad_vlans; // pool id for vlan table
217 } main_intf_t;
218 
219 typedef struct
220 {
223  u32 qinqs; // pool id for qinq table
224 } vlan_intf_t;
225 
226 typedef struct
227 {
229 } vlan_table_t;
230 
231 typedef struct
232 {
234 } qinq_intf_t;
235 
236 typedef struct
237 {
239 } qinq_table_t;
240 
241 // Structure mapping to a next index based on ethertype.
242 // Common ethertypes are stored explicitly, others are
243 // stored in a sparse table.
244 typedef struct
245 {
246  /* Sparse vector mapping ethernet type in network byte order
247  to next index. */
250 
251  /* cached next indexes for common ethertypes */
256 
257 typedef struct
258 {
260 
261  /* next node index for the L3 input node of each ethertype */
263 
264  /* next node index for L2 interfaces */
266 
267  /* flag and next node index for L3 redirect */
270 
271  /* Pool of ethernet interface instances. */
273 
275 
276  /* Hash tables mapping name/type to type info index. */
277  uword *type_info_by_name, *type_info_by_type;
278 
279  // The root of the vlan parsing tables. A vector with one element
280  // for each main interface, indexed by hw_if_index.
282 
283  // Pool of vlan tables
285 
286  // Pool of qinq tables;
288 
289  /* Set to one to use AB.CD.EF instead of A:B:C:D:E:F as ethernet format. */
291 
292  /* debug: make sure we don't wipe out an ethernet registration by mistake */
294 
295  /* Feature arc index */
297 
298  /* Allocated loopback instances */
301 
303 
306 {
307  uword *p = hash_get (em->type_info_by_type, type);
308  return p ? vec_elt_at_index (em->type_infos, p[0]) : 0;
309 }
310 
312  u32 hw_if_index);
313 
315  u32 dev_class_index,
316  u32 dev_instance,
317  const u8 * address,
318  u32 * hw_if_index_return,
320  flag_change);
321 
322 void ethernet_delete_interface (vnet_main_t * vnm, u32 hw_if_index);
323 
324 /* Register given node index to take input for given ethernet type. */
325 void
327  ethernet_type_t type, u32 node_index);
328 
329 /* Register given node index to take input for packet from L2 interfaces. */
330 void ethernet_register_l2_input (vlib_main_t * vm, u32 node_index);
331 
332 /* Register given node index to take redirected L3 traffic, and enable L3 redirect */
333 void ethernet_register_l3_redirect (vlib_main_t * vm, u32 node_index);
334 
335 /* Formats ethernet address X:X:X:X:X:X */
336 u8 *format_mac_address (u8 * s, va_list * args);
337 u8 *format_ethernet_address (u8 * s, va_list * args);
338 u8 *format_ethernet_type (u8 * s, va_list * args);
339 u8 *format_ethernet_vlan_tci (u8 * s, va_list * va);
340 u8 *format_ethernet_header (u8 * s, va_list * args);
341 u8 *format_ethernet_header_with_length (u8 * s, va_list * args);
342 
343 /* Parse ethernet address in either X:X:X:X:X:X unix or X.X.X cisco format. */
344 uword unformat_ethernet_address (unformat_input_t * input, va_list * args);
345 uword unformat_mac_address (unformat_input_t * input, va_list * args);
346 
347 /* Parse ethernet type as 0xXXXX or type name from ethernet/types.def.
348  In either host or network byte order. */
349 uword
351  va_list * args);
352 uword
354  va_list * args);
355 
356 /* Parse ethernet header. */
357 uword unformat_ethernet_header (unformat_input_t * input, va_list * args);
358 
359 /* Parse ethernet interface name; return hw_if_index. */
360 uword unformat_ethernet_interface (unformat_input_t * input, va_list * args);
361 
362 uword unformat_pg_ethernet_header (unformat_input_t * input, va_list * args);
363 
364 always_inline void
366 {
367  vlib_node_t *n = vlib_get_node (vm, node_index);
368  pg_node_t *pn = pg_get_node (node_index);
369 
373 }
374 
377 {
378  return (void *) (b->data + vnet_buffer (b)->l2_hdr_offset);
379 }
380 
381 /** Returns the number of VLAN headers in the current Ethernet frame in the
382  * buffer. Returns 0, 1, 2 for the known header count. The value 3 indicates
383  * the number of headers is not known.
384  */
385 #define ethernet_buffer_get_vlan_count(b) ( \
386  ((b)->flags & VNET_BUFFER_FLAGS_VLAN_BITS) >> VNET_BUFFER_F_LOG2_VLAN_1_DEEP \
387 )
388 
389 /** Sets the number of VLAN headers in the current Ethernet frame in the
390  * buffer. Values 0, 1, 2 indicate the header count. The value 3 indicates
391  * the number of headers is not known.
392  */
393 #define ethernet_buffer_set_vlan_count(b, v) ( \
394  (b)->flags = ((b)->flags & ~VNET_BUFFER_FLAGS_VLAN_BITS) | \
395  (((v) << VNET_BUFFER_F_LOG2_VLAN_1_DEEP) & VNET_BUFFER_FLAGS_VLAN_BITS) \
396 )
397 
398 /** Adjusts the vlan count by the delta in 'v' */
399 #define ethernet_buffer_adjust_vlan_count(b, v) ( \
400  ethernet_buffer_set_vlan_count(b, \
401  (word)ethernet_buffer_get_vlan_count(b) + (word)(v)) \
402 )
403 
404 /** Adjusts the vlan count by the header size byte delta in 'v' */
405 #define ethernet_buffer_adjust_vlan_count_by_bytes(b, v) ( \
406  (b)->flags = ((b)->flags & ~VNET_BUFFER_FLAGS_VLAN_BITS) | (( \
407  ((b)->flags & VNET_BUFFER_FLAGS_VLAN_BITS) + \
408  ((v) << (VNET_BUFFER_F_LOG2_VLAN_1_DEEP - 2)) \
409  ) & VNET_BUFFER_FLAGS_VLAN_BITS) \
410 )
411 
412 /**
413  * Determine the size of the Ethernet headers of the current frame in
414  * the buffer. This uses the VLAN depth flags that are set by
415  * ethernet-input. Because these flags are stored in the vlib_buffer_t
416  * "flags" field this count is valid regardless of the node so long as it's
417  * checked downstream of ethernet-input; That is, the value is not stored in
418  * the opaque space.
419  */
420 #define ethernet_buffer_header_size(b) ( \
421  ethernet_buffer_get_vlan_count((b)) * sizeof(ethernet_vlan_header_t) + \
422  sizeof(ethernet_header_t) \
423 )
424 
426 u32 ethernet_set_flags (vnet_main_t * vnm, u32 hw_if_index, u32 flags);
428  u32 l2);
430  u32 sw_if_index, u32 l2);
432  u32 enable);
433 
436  u32 ethertype, u32 next_index);
437 
438 int vnet_create_loopback_interface (u32 * sw_if_indexp, u8 * mac_address,
439  u8 is_specified, u32 user_instance);
442 
443 // Perform ethernet subinterface classification table lookups given
444 // the ports's sw_if_index and fields extracted from the ethernet header.
445 // The resulting tables are used by identify_subint().
446 always_inline void
448  vnet_main_t * vnm,
449  u32 port_sw_if_index0,
450  u16 first_ethertype,
451  u16 outer_id,
452  u16 inner_id,
453  vnet_hw_interface_t ** hi,
454  main_intf_t ** main_intf,
455  vlan_intf_t ** vlan_intf, qinq_intf_t ** qinq_intf)
456 {
457  vlan_table_t *vlan_table;
458  qinq_table_t *qinq_table;
459  u32 vlan_table_id;
460 
461  // Read the main, vlan, and qinq interface table entries
462  // TODO: Consider if/how to prefetch tables. Also consider
463  // single-entry cache to skip table lookups and identify_subint()
464  // processing.
465  *hi = vnet_get_sup_hw_interface (vnm, port_sw_if_index0);
466  *main_intf = vec_elt_at_index (em->main_intfs, (*hi)->hw_if_index);
467 
468  // Always read the vlan and qinq tables, even if there are not that
469  // many tags on the packet. This makes the lookups and comparisons
470  // easier (and less branchy).
471  vlan_table_id = (first_ethertype == ETHERNET_TYPE_DOT1AD) ?
472  (*main_intf)->dot1ad_vlans : (*main_intf)->dot1q_vlans;
473  vlan_table = vec_elt_at_index (em->vlan_pool, vlan_table_id);
474  *vlan_intf = &vlan_table->vlans[outer_id];
475 
476  qinq_table = vec_elt_at_index (em->qinq_pool, (*vlan_intf)->qinqs);
477  *qinq_intf = &qinq_table->vlans[inner_id];
478 }
479 
480 
481 // Determine the subinterface for this packet, given the result of the
482 // vlan table lookups and vlan header parsing. Check the most specific
483 // matches first.
484 // Returns 1 if a matching subinterface was found, otherwise returns 0.
487  u32 match_flags,
488  main_intf_t * main_intf,
489  vlan_intf_t * vlan_intf,
490  qinq_intf_t * qinq_intf,
491  u32 * new_sw_if_index, u8 * error0, u32 * is_l2)
492 {
493  subint_config_t *subint;
494 
495  // Each comparison is checking both the valid flag and the number of tags
496  // (incorporating exact-match/non-exact-match).
497 
498  // check for specific double tag
499  subint = &qinq_intf->subint;
500  if ((subint->flags & match_flags) == match_flags)
501  goto matched;
502 
503  // check for specific outer and 'any' inner
504  subint = &vlan_intf->inner_any_subint;
505  if ((subint->flags & match_flags) == match_flags)
506  goto matched;
507 
508  // check for specific single tag
509  subint = &vlan_intf->single_tag_subint;
510  if ((subint->flags & match_flags) == match_flags)
511  goto matched;
512 
513  // check for default interface
514  subint = &main_intf->default_subint;
515  if ((subint->flags & match_flags) == match_flags)
516  goto matched;
517 
518  // check for untagged interface
519  subint = &main_intf->untagged_subint;
520  if ((subint->flags & match_flags) == match_flags)
521  goto matched;
522 
523  // No matching subinterface
524  *new_sw_if_index = ~0;
525  *error0 = ETHERNET_ERROR_UNKNOWN_VLAN;
526  *is_l2 = 0;
527  return 0;
528 
529 matched:
530  *new_sw_if_index = subint->sw_if_index;
531  *is_l2 = subint->flags & SUBINT_CONFIG_L2;
532  return 1;
533 }
534 
537 {
538  return &ethernet_main;
539 }
540 
544  vnet_link_t link_type, const void *dst_address);
545 const u8 *ethernet_ip4_mcast_dst_addr (void);
546 const u8 *ethernet_ip6_mcast_dst_addr (void);
547 
549 
550 #endif /* included_ethernet_h */
551 
552 /*
553  * fd.io coding-style-patch-verification: ON
554  *
555  * Local Variables:
556  * eval: (c-set-style "gnu")
557  * End:
558  */
static_always_inline int ethernet_frame_is_any_tagged_x4(u16 type0, u16 type1, u16 type2, u16 type3)
Definition: ethernet.h:104
u32 sw_if_index
Definition: ipsec_gre.api:37
subint_config_t subint
Definition: ethernet.h:233
vmrglw vmrglh hi
uword unformat_ethernet_type_net_byte_order(unformat_input_t *input, va_list *args)
Definition: format.c:278
u32 flags
Definition: vhost_user.h:115
#define ETHERNET_N_VLAN
Definition: packet.h:133
uword unformat_pg_ethernet_header(unformat_input_t *input, va_list *args)
Definition: pg.c:82
void ethernet_delete_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:324
vlib_main_t * vlib_main
Definition: ethernet.h:259
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
ethernet_main_t * ethernet_get_main(vlib_main_t *vm)
Definition: init.c:117
ethernet_type_t
Definition: packet.h:45
u8 data[0]
Packet data.
Definition: buffer.h:181
main_intf_t * main_intfs
Definition: ethernet.h:281
subint_config_t inner_any_subint
Definition: ethernet.h:222
vlib_node_registration_t ethernet_input_node
(constructor) VLIB_REGISTER_NODE (ethernet_input_node)
Definition: node.c:1896
unsigned char u8
Definition: types.h:56
void ethernet_register_l3_redirect(vlib_main_t *vm, u32 node_index)
Definition: node.c:2113
static pg_node_t * pg_get_node(uword node_index)
Definition: pg.h:357
ethernet_main_t ethernet_main
Definition: init.c:45
#define static_always_inline
Definition: clib.h:99
u8 * format_ethernet_address(u8 *s, va_list *args)
Definition: format.c:44
#define always_inline
Definition: clib.h:98
subint_config_t default_subint
Definition: ethernet.h:214
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
void ethernet_sw_interface_set_l2_mode_noport(vnet_main_t *vnm, u32 sw_if_index, u32 l2)
Definition: node.c:1801
u8 output_feature_arc_index
Definition: ethernet.h:296
int format_ethernet_address_16bit
Definition: ethernet.h:290
ethernet_flag_change_function_t * flag_change
Definition: ethernet.h:151
unsigned int u32
Definition: types.h:88
const u8 * ethernet_ip6_mcast_dst_addr(void)
Definition: interface.c:67
ethernet_error_t
Definition: ethernet.h:176
void ethernet_set_rx_redirect(vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 enable)
Definition: node.c:1941
void ethernet_update_adjacency(vnet_main_t *vnm, u32 sw_if_index, u32 ai)
Definition: interface.c:196
#define hash_get(h, key)
Definition: hash.h:249
u16 dot1q_vlans
Definition: ethernet.h:215
static ethernet_header_t * ethernet_buffer_get_header(vlib_buffer_t *b)
Definition: ethernet.h:376
subint_config_t single_tag_subint
Definition: ethernet.h:221
u32 * sparse_index_by_input_next_index
Definition: ethernet.h:249
static ethernet_type_info_t * ethernet_get_type_info(ethernet_main_t *em, ethernet_type_t type)
Definition: ethernet.h:305
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
format_function_t * format_buffer
Definition: node.h:356
u16 dot1ad_vlans
Definition: ethernet.h:216
vnet_hw_interface_class_t ethernet_hw_interface_class
u8 next_by_ethertype_register_called
Definition: ethernet.h:293
subint_config_t untagged_subint
Definition: ethernet.h:213
u8 * format_ethernet_type(u8 *s, va_list *args)
Definition: format.c:64
int vnet_create_loopback_interface(u32 *sw_if_indexp, u8 *mac_address, u8 is_specified, u32 user_instance)
Definition: interface.c:735
u8 * format_ethernet_header_with_length(u8 *s, va_list *args)
Definition: format.c:97
#define SUBINT_CONFIG_VALID
Definition: ethernet.h:198
clib_error_t * next_by_ethertype_register(next_by_ethertype_t *l3_next, u32 ethertype, u32 next_index)
Definition: node.c:1986
qinq_intf_t vlans[ETHERNET_N_VLAN]
Definition: ethernet.h:238
int vnet_delete_sub_interface(u32 sw_if_index)
Definition: interface.c:916
int vnet_delete_loopback_interface(u32 sw_if_index)
Definition: interface.c:896
static u32 eth_create_valid_subint_match_flags(u32 num_tags)
Definition: ethernet.h:205
void ethernet_register_l2_input(vlib_main_t *vm, u32 node_index)
Definition: node.c:2092
unformat_function_t * unformat_buffer
Definition: node.h:357
unformat_function_t * unformat_edit
Definition: pg.h:310
static u32 eth_identify_subint(vnet_hw_interface_t *hi, u32 match_flags, main_intf_t *main_intf, vlan_intf_t *vlan_intf, qinq_intf_t *qinq_intf, u32 *new_sw_if_index, u8 *error0, u32 *is_l2)
Definition: ethernet.h:486
uword unformat_mac_address(unformat_input_t *input, va_list *args)
Definition: format.c:241
static void eth_vlan_table_lookups(ethernet_main_t *em, vnet_main_t *vnm, u32 port_sw_if_index0, u16 first_ethertype, u16 outer_id, u16 inner_id, vnet_hw_interface_t **hi, main_intf_t **main_intf, vlan_intf_t **vlan_intf, qinq_intf_t **qinq_intf)
Definition: ethernet.h:447
#define SUBINT_CONFIG_L2
Definition: ethernet.h:199
uword unformat_ethernet_address(unformat_input_t *input, va_list *args)
Definition: format.c:233
vlan_table_t * vlan_pool
Definition: ethernet.h:284
u8 * format_ethernet_header(u8 *s, va_list *args)
Definition: format.c:178
u32 redirect_l3_next
Definition: ethernet.h:269
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
ethernet_type_t type
Definition: ethernet.h:167
u32( ethernet_flag_change_function_t)(vnet_main_t *vnm, struct vnet_hw_interface_t *hi, u32 flags)
Definition: ethernet.h:130
static_always_inline int ethernet_frame_is_tagged(u16 type)
Definition: ethernet.h:78
vlan_intf_t vlans[ETHERNET_N_VLAN]
Definition: ethernet.h:228
uword * bm_loopback_instances
Definition: ethernet.h:299
u8 mac_address[6]
void ethernet_register_input_type(vlib_main_t *vm, ethernet_type_t type, u32 node_index)
Definition: node.c:2061
uword unformat_ethernet_interface(unformat_input_t *input, va_list *args)
Definition: interface.c:257
struct _vlib_node_registration vlib_node_registration_t
uword * type_info_by_type
Definition: ethernet.h:277
ethernet_interface_t * ethernet_get_interface(ethernet_main_t *em, u32 hw_if_index)
Definition: interface.c:886
void ethernet_sw_interface_set_l2_mode(vnet_main_t *vnm, u32 sw_if_index, u32 l2)
Definition: node.c:1752
uword unformat_ethernet_type_host_byte_order(unformat_input_t *input, va_list *args)
Definition: format.c:249
struct _vnet_hw_interface_class vnet_hw_interface_class_t
u8 * format_ethernet_vlan_tci(u8 *s, va_list *va)
Definition: format.c:79
clib_error_t * ethernet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, const u8 *address, u32 *hw_if_index_return, ethernet_flag_change_function_t flag_change)
Definition: interface.c:278
VLIB buffer representation.
Definition: buffer.h:102
static_always_inline int ethernet_frame_is_any_tagged_x2(u16 type0, u16 type1)
Definition: ethernet.h:92
u64 uword
Definition: types.h:112
struct ethernet_interface ethernet_interface_t
u8 * ethernet_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
build a rewrite string to use for sending packets of type &#39;link_type&#39; to &#39;dst_address&#39; ...
Definition: interface.c:81
ethernet_header_t ethernet
Definition: ethernet.h:121
clib_error_t * next_by_ethertype_init(next_by_ethertype_t *l3_next)
Definition: node.c:1956
u8 * format_mac_address(u8 *s, va_list *args)
Definition: format.c:58
static ethernet_main_t * vnet_get_ethernet_main(void)
Definition: ethernet.h:536
#define vnet_buffer(b)
Definition: buffer.h:369
qinq_table_t * qinq_pool
Definition: ethernet.h:287
static vlib_node_t * vlib_get_node(vlib_main_t *vm, u32 i)
Get vlib node by index.
Definition: node_funcs.h:59
next_by_ethertype_t l3_next
Definition: ethernet.h:262
ethernet_interface_t * interfaces
Definition: ethernet.h:272
Definition: pg.h:307
const u8 * ethernet_ip4_mcast_dst_addr(void)
Definition: interface.c:57
static void ethernet_setup_node(vlib_main_t *vm, u32 node_index)
Definition: ethernet.h:365
uword unformat_ethernet_header(unformat_input_t *input, va_list *args)
Definition: format.c:290
u16 * input_next_by_type
Definition: ethernet.h:248
u32 ethernet_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:372
ethernet_type_info_t * type_infos
Definition: ethernet.h:274