Line data Source code
1 : /*
2 : * Copyright (c) 2016 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 : #include <vnet/feature/feature.h>
17 :
18 : vnet_feature_main_t feature_main;
19 :
20 : typedef struct vnet_feature_upd_registration_t_
21 : {
22 : vnet_feature_update_cb_t cb;
23 : void *data;
24 : } vnet_feature_upd_registration_t;
25 :
26 : static vnet_feature_upd_registration_t *regs;
27 :
28 : void
29 1150 : vnet_feature_register (vnet_feature_update_cb_t cb, void *data)
30 : {
31 : vnet_feature_upd_registration_t *reg;
32 :
33 1150 : vec_add2 (regs, reg, 1);
34 :
35 1150 : reg->cb = cb;
36 1150 : reg->data = data;
37 1150 : }
38 :
39 : static void
40 135181 : vnet_feature_reg_invoke (u32 sw_if_index, u8 arc_index, u8 is_enable)
41 : {
42 : vnet_feature_upd_registration_t *reg;
43 :
44 402668 : vec_foreach (reg, regs)
45 267487 : reg->cb (sw_if_index, arc_index, is_enable, reg->data);
46 135181 : }
47 :
48 :
49 : static clib_error_t *
50 575 : vnet_feature_init (vlib_main_t * vm)
51 : {
52 575 : vnet_feature_main_t *fm = &feature_main;
53 : vnet_feature_registration_t *freg;
54 : vnet_feature_arc_registration_t *areg;
55 : vnet_feature_constraint_registration_t *creg;
56 575 : u32 arc_index = 0;
57 :
58 575 : fm->arc_index_by_name = hash_create_string (0, sizeof (uword));
59 575 : areg = fm->next_arc;
60 :
61 : /* process feature arc registrations */
62 15525 : while (areg)
63 : {
64 : char *s;
65 14950 : int i = 0;
66 14950 : areg->feature_arc_index = arc_index;
67 14950 : if (areg->arc_index_ptr)
68 10925 : *areg->arc_index_ptr = arc_index;
69 29900 : hash_set_mem (fm->arc_index_by_name, areg->arc_name,
70 : pointer_to_uword (areg));
71 :
72 : /* process start nodes */
73 35650 : while ((s = areg->start_nodes[i]))
74 : {
75 20700 : i++;
76 : }
77 14950 : areg->n_start_nodes = i;
78 :
79 : /* next */
80 14950 : areg = areg->next;
81 14950 : arc_index++;
82 : }
83 :
84 575 : vec_validate (fm->next_feature_by_arc, arc_index - 1);
85 575 : vec_validate (fm->feature_nodes, arc_index - 1);
86 575 : vec_validate (fm->feature_config_mains, arc_index - 1);
87 575 : vec_validate (fm->next_feature_by_name, arc_index - 1);
88 575 : vec_validate (fm->sw_if_index_has_features, arc_index - 1);
89 575 : vec_validate (fm->feature_count_by_sw_if_index, arc_index - 1);
90 575 : vec_validate (fm->next_constraint_by_arc, arc_index - 1);
91 :
92 575 : freg = fm->next_feature;
93 140903 : while (freg)
94 : {
95 : vnet_feature_registration_t *next;
96 280656 : uword *p = hash_get_mem (fm->arc_index_by_name, freg->arc_name);
97 140328 : if (p == 0)
98 : {
99 : /* Don't start vpp with broken features arcs */
100 0 : clib_warning ("Unknown feature arc '%s'", freg->arc_name);
101 0 : os_exit (1);
102 : }
103 :
104 140328 : areg = uword_to_pointer (p[0], vnet_feature_arc_registration_t *);
105 140328 : arc_index = areg->feature_arc_index;
106 :
107 140328 : next = freg->next;
108 140328 : freg->next_in_arc = fm->next_feature_by_arc[arc_index];
109 140328 : fm->next_feature_by_arc[arc_index] = freg;
110 :
111 : /* next */
112 140328 : freg = next;
113 : }
114 :
115 : /* Move bulk constraints to the constraint by arc lists */
116 575 : creg = fm->next_constraint;
117 575 : while (creg)
118 : {
119 : vnet_feature_constraint_registration_t *next;
120 0 : uword *p = hash_get_mem (fm->arc_index_by_name, creg->arc_name);
121 0 : if (p == 0)
122 : {
123 : /* Don't start vpp with broken features arcs */
124 0 : clib_warning ("Unknown feature arc '%s'", creg->arc_name);
125 0 : os_exit (1);
126 : }
127 :
128 0 : areg = uword_to_pointer (p[0], vnet_feature_arc_registration_t *);
129 0 : arc_index = areg->feature_arc_index;
130 :
131 0 : next = creg->next;
132 0 : creg->next_in_arc = fm->next_constraint_by_arc[arc_index];
133 0 : fm->next_constraint_by_arc[arc_index] = creg;
134 :
135 : /* next */
136 0 : creg = next;
137 : }
138 :
139 :
140 575 : areg = fm->next_arc;
141 15525 : while (areg)
142 : {
143 : clib_error_t *error;
144 : vnet_feature_config_main_t *cm;
145 : vnet_config_main_t *vcm;
146 : char **features_in_order, *last_feature;
147 :
148 14950 : arc_index = areg->feature_arc_index;
149 14950 : cm = &fm->feature_config_mains[arc_index];
150 14950 : vcm = &cm->config_main;
151 14950 : if ((error = vnet_feature_arc_init
152 : (vm, vcm, areg->start_nodes, areg->n_start_nodes,
153 : areg->last_in_arc,
154 14950 : fm->next_feature_by_arc[arc_index],
155 14950 : fm->next_constraint_by_arc[arc_index],
156 14950 : &fm->feature_nodes[arc_index])))
157 : {
158 0 : clib_error_report (error);
159 0 : os_exit (1);
160 : }
161 :
162 14950 : features_in_order = fm->feature_nodes[arc_index];
163 :
164 : /* If specified, verify that the last node in the arc is actually last */
165 14950 : if (areg->last_in_arc && vec_len (features_in_order) > 0)
166 : {
167 7475 : last_feature = features_in_order[vec_len (features_in_order) - 1];
168 7475 : if (strncmp (areg->last_in_arc, last_feature,
169 7475 : strlen (areg->last_in_arc)))
170 0 : clib_warning
171 : ("WARNING: %s arc: last node is %s, but expected %s!",
172 : areg->arc_name, last_feature, areg->last_in_arc);
173 : }
174 :
175 14950 : fm->next_feature_by_name[arc_index] =
176 14950 : hash_create_string (0, sizeof (uword));
177 14950 : freg = fm->next_feature_by_arc[arc_index];
178 :
179 155278 : while (freg)
180 : {
181 280656 : hash_set_mem (fm->next_feature_by_name[arc_index],
182 : freg->node_name, pointer_to_uword (freg));
183 140328 : freg = freg->next_in_arc;
184 : }
185 :
186 : /* next */
187 14950 : areg = areg->next;
188 14950 : arc_index++;
189 : }
190 :
191 575 : return 0;
192 : }
193 :
194 80063 : VLIB_INIT_FUNCTION (vnet_feature_init);
195 :
196 : u8
197 116697 : vnet_get_feature_arc_index (const char *s)
198 : {
199 116697 : vnet_feature_main_t *fm = &feature_main;
200 : vnet_feature_arc_registration_t *reg;
201 : uword *p;
202 :
203 116697 : p = hash_get_mem (fm->arc_index_by_name, s);
204 116697 : if (p == 0)
205 0 : return ~0;
206 :
207 116697 : reg = uword_to_pointer (p[0], vnet_feature_arc_registration_t *);
208 116697 : return reg->feature_arc_index;
209 : }
210 :
211 : vnet_feature_registration_t *
212 8 : vnet_get_feature_reg (const char *arc_name, const char *node_name)
213 : {
214 : u8 arc_index;
215 :
216 8 : arc_index = vnet_get_feature_arc_index (arc_name);
217 8 : if (arc_index == (u8) ~ 0)
218 0 : return 0;
219 :
220 8 : vnet_feature_main_t *fm = &feature_main;
221 : vnet_feature_registration_t *reg;
222 : uword *p;
223 :
224 8 : p = hash_get_mem (fm->next_feature_by_name[arc_index], node_name);
225 8 : if (p == 0)
226 0 : return 0;
227 :
228 8 : reg = uword_to_pointer (p[0], vnet_feature_registration_t *);
229 8 : return reg;
230 : }
231 :
232 : u32
233 109618 : vnet_get_feature_index (u8 arc, const char *s)
234 : {
235 109618 : vnet_feature_main_t *fm = &feature_main;
236 : vnet_feature_registration_t *reg;
237 : uword *p;
238 :
239 109618 : if (s == 0)
240 0 : return ~0;
241 :
242 109618 : p = hash_get_mem (fm->next_feature_by_name[arc], s);
243 109618 : if (p == 0)
244 641 : return ~0;
245 :
246 108977 : reg = uword_to_pointer (p[0], vnet_feature_registration_t *);
247 108977 : return reg->feature_index;
248 : }
249 :
250 : int
251 109618 : vnet_feature_enable_disable_with_index (u8 arc_index, u32 feature_index,
252 : u32 sw_if_index, int enable_disable,
253 : void *feature_config,
254 : u32 n_feature_config_bytes)
255 : {
256 109618 : vnet_feature_main_t *fm = &feature_main;
257 : vnet_feature_config_main_t *cm;
258 : i16 feature_count;
259 : u32 ci;
260 :
261 109618 : if (arc_index == (u8) ~ 0)
262 0 : return VNET_API_ERROR_INVALID_VALUE;
263 :
264 109618 : if (feature_index == ~0)
265 641 : return VNET_API_ERROR_INVALID_VALUE_2;
266 :
267 108977 : cm = &fm->feature_config_mains[arc_index];
268 132886 : vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0);
269 108977 : ci = cm->config_index_by_sw_if_index[sw_if_index];
270 :
271 108977 : vec_validate (fm->feature_count_by_sw_if_index[arc_index], sw_if_index);
272 108977 : feature_count = fm->feature_count_by_sw_if_index[arc_index][sw_if_index];
273 :
274 108977 : if (!enable_disable && feature_count < 1)
275 1336 : return 0;
276 :
277 : ci = (enable_disable
278 : ? vnet_config_add_feature
279 107641 : : vnet_config_del_feature)
280 : (vlib_get_main (), &cm->config_main, ci, feature_index, feature_config,
281 : n_feature_config_bytes);
282 107641 : if (ci == ~0)
283 : {
284 1774 : return 0;
285 : }
286 105867 : cm->config_index_by_sw_if_index[sw_if_index] = ci;
287 :
288 : /* update feature count */
289 105867 : enable_disable = (enable_disable > 0);
290 105867 : feature_count += enable_disable ? 1 : -1;
291 105867 : ASSERT (feature_count >= 0);
292 :
293 211734 : fm->sw_if_index_has_features[arc_index] =
294 105867 : clib_bitmap_set (fm->sw_if_index_has_features[arc_index], sw_if_index,
295 : (feature_count > 0));
296 105867 : fm->feature_count_by_sw_if_index[arc_index][sw_if_index] = feature_count;
297 :
298 105867 : vnet_feature_reg_invoke (sw_if_index, arc_index, (feature_count > 0));
299 :
300 105867 : return 0;
301 : }
302 :
303 : int
304 109618 : vnet_feature_enable_disable (const char *arc_name, const char *node_name,
305 : u32 sw_if_index, int enable_disable,
306 : void *feature_config, u32 n_feature_config_bytes)
307 : {
308 : u32 feature_index;
309 : u8 arc_index;
310 :
311 109618 : arc_index = vnet_get_feature_arc_index (arc_name);
312 :
313 109618 : if (arc_index == (u8) ~ 0)
314 0 : return VNET_API_ERROR_INVALID_VALUE;
315 :
316 109618 : feature_index = vnet_get_feature_index (arc_index, node_name);
317 :
318 109618 : return vnet_feature_enable_disable_with_index (arc_index, feature_index,
319 : sw_if_index, enable_disable,
320 : feature_config,
321 : n_feature_config_bytes);
322 : }
323 :
324 : int
325 0 : vnet_feature_is_enabled (const char *arc_name, const char *feature_node_name,
326 : u32 sw_if_index)
327 : {
328 0 : vnet_feature_main_t *fm = &feature_main;
329 : vnet_feature_config_main_t *cm;
330 : vnet_config_main_t *ccm;
331 : vnet_config_t *current_config;
332 : vnet_config_feature_t *f;
333 : u32 feature_index;
334 : u32 ci;
335 : u8 arc_index;
336 : u32 *p;
337 :
338 0 : arc_index = vnet_get_feature_arc_index (arc_name);
339 :
340 : /* No such arc? */
341 0 : if (arc_index == (u8) ~ 0)
342 0 : return VNET_API_ERROR_INVALID_VALUE;
343 :
344 0 : feature_index = vnet_get_feature_index (arc_index, feature_node_name);
345 :
346 : /* No such feature? */
347 0 : if (feature_index == (u32) ~ 0)
348 0 : return VNET_API_ERROR_INVALID_VALUE_2;
349 :
350 0 : cm = &fm->feature_config_mains[arc_index];
351 :
352 0 : if (sw_if_index < vec_len (cm->config_index_by_sw_if_index))
353 0 : ci = vec_elt (cm->config_index_by_sw_if_index, sw_if_index);
354 : else
355 : /* sw_if_index out of range, certainly not enabled */
356 0 : return VNET_API_ERROR_INVALID_SW_IF_INDEX;
357 :
358 : /* No features were ever configured? */
359 0 : if (ci == ~0)
360 0 : return 0;
361 :
362 0 : ccm = &cm->config_main;
363 :
364 0 : p = heap_elt_at_index (ccm->config_string_heap, ci);
365 :
366 0 : current_config = pool_elt_at_index (ccm->config_pool, p[-1]);
367 :
368 : /* Find feature with the required index */
369 0 : vec_foreach (f, current_config->features)
370 : {
371 0 : if (f->feature_index == feature_index)
372 : /* Feature was enabled */
373 0 : return 1;
374 : }
375 : /* feature wasn't enabled */
376 0 : return 0;
377 : }
378 :
379 : u32
380 972 : vnet_feature_get_end_node (u8 arc_index, u32 sw_if_index)
381 : {
382 972 : vnet_feature_main_t *fm = &feature_main;
383 : vnet_feature_config_main_t *cm;
384 : u32 ci;
385 :
386 972 : if (arc_index == (u8) ~0)
387 0 : return VNET_API_ERROR_INVALID_VALUE;
388 :
389 972 : cm = &fm->feature_config_mains[arc_index];
390 972 : vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0);
391 972 : ci = cm->config_index_by_sw_if_index[sw_if_index];
392 :
393 972 : return (vnet_config_get_end_node (vlib_get_main (), &cm->config_main, ci));
394 : }
395 :
396 : u32
397 0 : vnet_feature_reset_end_node (u8 arc_index, u32 sw_if_index)
398 : {
399 0 : vnet_feature_main_t *fm = &feature_main;
400 : vnet_feature_config_main_t *cm;
401 : u32 ci;
402 :
403 0 : cm = &fm->feature_config_mains[arc_index];
404 0 : vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0);
405 0 : ci = cm->config_index_by_sw_if_index[sw_if_index];
406 :
407 0 : ci = vnet_config_reset_end_node (vlib_get_main (), &cm->config_main, ci);
408 :
409 0 : if (ci != ~0)
410 0 : cm->config_index_by_sw_if_index[sw_if_index] = ci;
411 :
412 : i16 feature_count;
413 :
414 0 : if (NULL == fm->feature_count_by_sw_if_index ||
415 0 : vec_len (fm->feature_count_by_sw_if_index) <= arc_index ||
416 0 : vec_len (fm->feature_count_by_sw_if_index[arc_index]) <= sw_if_index)
417 0 : feature_count = 0;
418 : else
419 0 : feature_count = fm->feature_count_by_sw_if_index[arc_index][sw_if_index];
420 :
421 0 : vnet_feature_reg_invoke (sw_if_index, arc_index, (feature_count > 0));
422 :
423 0 : return ci;
424 : }
425 :
426 : u32
427 4547 : vnet_feature_modify_end_node (u8 arc_index,
428 : u32 sw_if_index, u32 end_node_index)
429 : {
430 4547 : vnet_feature_main_t *fm = &feature_main;
431 : vnet_feature_config_main_t *cm;
432 : u32 ci;
433 :
434 4547 : if (arc_index == (u8) ~ 0)
435 0 : return VNET_API_ERROR_INVALID_VALUE;
436 :
437 4547 : if (end_node_index == ~0)
438 0 : return VNET_API_ERROR_INVALID_VALUE_2;
439 :
440 4547 : cm = &fm->feature_config_mains[arc_index];
441 6987 : vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0);
442 4547 : ci = cm->config_index_by_sw_if_index[sw_if_index];
443 :
444 4547 : ci = vnet_config_modify_end_node (vlib_get_main (), &cm->config_main,
445 : ci, end_node_index);
446 :
447 4547 : if (ci != ~0)
448 4547 : cm->config_index_by_sw_if_index[sw_if_index] = ci;
449 :
450 : i16 feature_count;
451 :
452 4547 : if (NULL == fm->feature_count_by_sw_if_index ||
453 9094 : vec_len (fm->feature_count_by_sw_if_index) <= arc_index ||
454 4547 : vec_len (fm->feature_count_by_sw_if_index[arc_index]) <= sw_if_index)
455 4189 : feature_count = 0;
456 : else
457 358 : feature_count = fm->feature_count_by_sw_if_index[arc_index][sw_if_index];
458 :
459 4547 : vnet_feature_reg_invoke (sw_if_index, arc_index, (feature_count > 0));
460 :
461 4547 : return ci;
462 : }
463 :
464 : static int
465 0 : feature_cmp (void *a1, void *a2)
466 : {
467 0 : vnet_feature_registration_t *reg1 = a1;
468 0 : vnet_feature_registration_t *reg2 = a2;
469 :
470 0 : return (int) reg1->feature_index - reg2->feature_index;
471 : }
472 :
473 : /** Display the set of available driver features.
474 : Useful for verifying that expected features are present
475 : */
476 :
477 : static clib_error_t *
478 0 : show_features_command_fn (vlib_main_t * vm,
479 : unformat_input_t * input, vlib_cli_command_t * cmd)
480 : {
481 0 : vnet_feature_main_t *fm = &feature_main;
482 : vnet_feature_arc_registration_t *areg;
483 : vnet_feature_registration_t *freg;
484 0 : vnet_feature_registration_t *feature_regs = 0;
485 0 : int verbose = 0;
486 :
487 0 : if (unformat (input, "verbose"))
488 0 : verbose = 1;
489 :
490 0 : vlib_cli_output (vm, "Available feature paths");
491 :
492 0 : areg = fm->next_arc;
493 0 : while (areg)
494 : {
495 0 : if (verbose)
496 0 : vlib_cli_output (vm, "[%2d] %s:", areg->feature_arc_index,
497 : areg->arc_name);
498 : else
499 0 : vlib_cli_output (vm, "%s:", areg->arc_name);
500 :
501 0 : freg = fm->next_feature_by_arc[areg->feature_arc_index];
502 0 : while (freg)
503 : {
504 0 : vec_add1 (feature_regs, freg[0]);
505 0 : freg = freg->next_in_arc;
506 : }
507 :
508 0 : vec_sort_with_function (feature_regs, feature_cmp);
509 :
510 0 : vec_foreach (freg, feature_regs)
511 : {
512 0 : if (verbose)
513 0 : vlib_cli_output (vm, " [%2d]: %s\n", freg->feature_index,
514 : freg->node_name);
515 : else
516 0 : vlib_cli_output (vm, " %s\n", freg->node_name);
517 : }
518 0 : vec_reset_length (feature_regs);
519 : /* next */
520 0 : areg = areg->next;
521 : }
522 0 : vec_free (feature_regs);
523 :
524 0 : return 0;
525 : }
526 :
527 : /*?
528 : * Display the set of available driver features
529 : *
530 : * @cliexpar
531 : * Example:
532 : * @cliexcmd{show features [verbose]}
533 : * @cliexend
534 : * @endparblock
535 : ?*/
536 : /* *INDENT-OFF* */
537 285289 : VLIB_CLI_COMMAND (show_features_command, static) = {
538 : .path = "show features",
539 : .short_help = "show features [verbose]",
540 : .function = show_features_command_fn,
541 : };
542 : /* *INDENT-ON* */
543 :
544 : /** Display the set of driver features configured on a specific interface
545 : * Called by "show interface" handler
546 : */
547 :
548 : void
549 3 : vnet_interface_features_show (vlib_main_t * vm, u32 sw_if_index, int verbose)
550 : {
551 3 : vnet_feature_main_t *fm = &feature_main;
552 : u32 node_index, current_config_index;
553 : u16 feature_arc;
554 3 : vnet_feature_config_main_t *cm = fm->feature_config_mains;
555 : vnet_feature_arc_registration_t *areg;
556 : vnet_config_main_t *vcm;
557 : vnet_config_t *cfg;
558 : u32 cfg_index;
559 : vnet_config_feature_t *feat;
560 : vlib_node_t *n;
561 : int i;
562 :
563 3 : vlib_cli_output (vm, "Feature paths configured on %U...",
564 : format_vnet_sw_if_index_name,
565 : vnet_get_main (), sw_if_index);
566 :
567 3 : areg = fm->next_arc;
568 81 : while (areg)
569 : {
570 78 : feature_arc = areg->feature_arc_index;
571 78 : vcm = &(cm[feature_arc].config_main);
572 :
573 78 : vlib_cli_output (vm, "\n%s:", areg->arc_name);
574 78 : areg = areg->next;
575 :
576 78 : if (!vnet_have_features (feature_arc, sw_if_index))
577 : {
578 68 : vlib_cli_output (vm, " none configured");
579 68 : continue;
580 : }
581 :
582 10 : current_config_index =
583 10 : vec_elt (cm[feature_arc].config_index_by_sw_if_index, sw_if_index);
584 10 : cfg_index =
585 10 : vec_elt (vcm->config_pool_index_by_user_index, current_config_index);
586 10 : cfg = pool_elt_at_index (vcm->config_pool, cfg_index);
587 :
588 28 : for (i = 0; i < vec_len (cfg->features); i++)
589 : {
590 18 : feat = cfg->features + i;
591 18 : node_index = feat->node_index;
592 18 : n = vlib_get_node (vm, node_index);
593 18 : if (verbose)
594 0 : vlib_cli_output (vm, " [%2d] %v", feat->feature_index, n->name);
595 : else
596 18 : vlib_cli_output (vm, " %v", n->name);
597 : }
598 10 : if (verbose)
599 : {
600 : n =
601 0 : vlib_get_node (vm,
602 0 : vcm->end_node_indices_by_user_index
603 0 : [current_config_index]);
604 0 : vlib_cli_output (vm, " [end] %v", n->name);
605 : }
606 : }
607 3 : }
608 :
609 : static clib_error_t *
610 0 : set_interface_features_command_fn (vlib_main_t * vm,
611 : unformat_input_t * input,
612 : vlib_cli_command_t * cmd)
613 : {
614 0 : vnet_main_t *vnm = vnet_get_main ();
615 0 : unformat_input_t _line_input, *line_input = &_line_input;
616 0 : clib_error_t *error = 0;
617 :
618 0 : u8 *arc_name = 0;
619 0 : u8 *feature_name = 0;
620 0 : u32 sw_if_index = ~0;
621 0 : u8 enable = 1;
622 :
623 : /* Get a line of input. */
624 0 : if (!unformat_user (input, unformat_line_input, line_input))
625 0 : return 0;
626 :
627 0 : while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
628 : {
629 0 : if (unformat
630 : (line_input, "%U %s arc %s", unformat_vnet_sw_interface, vnm,
631 : &sw_if_index, &feature_name, &arc_name))
632 : ;
633 0 : else if (unformat (line_input, "disable"))
634 0 : enable = 0;
635 : else
636 : {
637 0 : error = unformat_parse_error (line_input);
638 0 : goto done;
639 : }
640 : }
641 0 : if (!feature_name || !arc_name)
642 : {
643 0 : error = clib_error_return (0, "Both feature name and arc required...");
644 0 : goto done;
645 : }
646 :
647 0 : if (sw_if_index == ~0)
648 : {
649 0 : error = clib_error_return (0, "Interface not specified...");
650 0 : goto done;
651 : }
652 :
653 0 : vec_add1 (arc_name, 0);
654 0 : vec_add1 (feature_name, 0);
655 :
656 : u8 arc_index;
657 :
658 0 : arc_index = vnet_get_feature_arc_index ((const char *) arc_name);
659 :
660 0 : if (arc_index == (u8) ~ 0)
661 : {
662 : error =
663 0 : clib_error_return (0, "Unknown arc name (%s)... ",
664 : (const char *) arc_name);
665 0 : goto done;
666 : }
667 :
668 : vnet_feature_registration_t *reg;
669 : reg =
670 0 : vnet_get_feature_reg ((const char *) arc_name,
671 : (const char *) feature_name);
672 0 : if (reg == 0)
673 : {
674 : error =
675 0 : clib_error_return (0,
676 : "Feature (%s) not registered to arc (%s)... See 'show features verbose' for valid feature/arc combinations. ",
677 : feature_name, arc_name);
678 0 : goto done;
679 : }
680 0 : if (reg->enable_disable_cb)
681 0 : error = reg->enable_disable_cb (sw_if_index, enable);
682 0 : if (!error)
683 0 : vnet_feature_enable_disable ((const char *) arc_name,
684 : (const char *) feature_name, sw_if_index,
685 : enable, 0, 0);
686 :
687 0 : done:
688 0 : vec_free (feature_name);
689 0 : vec_free (arc_name);
690 0 : unformat_free (line_input);
691 0 : return error;
692 : }
693 :
694 : /*?
695 : * Set feature for given interface
696 : *
697 : * @cliexpar
698 : * Example:
699 : * @cliexcmd{set interface feature GigabitEthernet2/0/0 ip4_flow_classify arc ip4_unicast}
700 : * @cliexend
701 : * @endparblock
702 : ?*/
703 : /* *INDENT-OFF* */
704 285289 : VLIB_CLI_COMMAND (set_interface_feature_command, static) = {
705 : .path = "set interface feature",
706 : .short_help = "set interface feature <intfc> <feature_name> arc <arc_name> "
707 : "[disable]",
708 : .function = set_interface_features_command_fn,
709 : };
710 : /* *INDENT-ON* */
711 :
712 : static clib_error_t *
713 11798 : vnet_feature_add_del_sw_interface (vnet_main_t * vnm, u32 sw_if_index,
714 : u32 is_add)
715 : {
716 11798 : vnet_feature_main_t *fm = &feature_main;
717 : const vnet_feature_arc_registration_t *far;
718 :
719 11798 : if (is_add)
720 7547 : return 0;
721 :
722 : /*
723 : * remove all enabled features from an interface on deletion
724 : */
725 114777 : for (far = fm->next_arc; far != 0; far = far->next)
726 : {
727 110526 : const u8 arc_index = far->feature_arc_index;
728 110526 : vnet_feature_config_main_t *cm =
729 110526 : vec_elt_at_index (fm->feature_config_mains, arc_index);
730 110526 : const u32 ci =
731 110526 : vec_len (cm->config_index_by_sw_if_index) <=
732 110526 : sw_if_index ? ~0 : vec_elt (cm->config_index_by_sw_if_index,
733 : sw_if_index);
734 :
735 110526 : if (~0 == ci)
736 85759 : continue;
737 :
738 49534 : fm->sw_if_index_has_features[arc_index] =
739 24767 : clib_bitmap_set (fm->sw_if_index_has_features[arc_index], sw_if_index,
740 : 0);
741 :
742 24767 : vnet_feature_reg_invoke (sw_if_index, arc_index, 0);
743 :
744 24767 : if (vec_len (fm->feature_count_by_sw_if_index[arc_index]) > sw_if_index)
745 22999 : vec_elt (fm->feature_count_by_sw_if_index[arc_index], sw_if_index) =
746 : 0;
747 :
748 24767 : vec_elt (cm->config_index_by_sw_if_index, sw_if_index) = ~0;
749 24767 : vnet_config_del (&cm->config_main, ci);
750 : }
751 :
752 4251 : return 0;
753 : }
754 :
755 1151 : VNET_SW_INTERFACE_ADD_DEL_FUNCTION_PRIO (vnet_feature_add_del_sw_interface,
756 : VNET_ITF_FUNC_PRIORITY_HIGH);
757 :
758 : /*
759 : * fd.io coding-style-patch-verification: ON
760 : *
761 : * Local Variables:
762 : * eval: (c-set-style "gnu")
763 : * End:
764 : */
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