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8f256622 PNA |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #include <linux/kernel.h> | |
3 | #include <linux/slab.h> | |
4 | #include <net/flow_offload.h> | |
4e481908 | 5 | #include <linux/rtnetlink.h> |
1150ab0f | 6 | #include <linux/mutex.h> |
8f256622 | 7 | |
e3ab786b | 8 | struct flow_rule *flow_rule_alloc(unsigned int num_actions) |
8f256622 | 9 | { |
e3ab786b PNA |
10 | struct flow_rule *rule; |
11 | ||
6dca9360 | 12 | rule = kzalloc(struct_size(rule, action.entries, num_actions), |
e3ab786b PNA |
13 | GFP_KERNEL); |
14 | if (!rule) | |
15 | return NULL; | |
16 | ||
17 | rule->action.num_entries = num_actions; | |
18 | ||
19 | return rule; | |
8f256622 PNA |
20 | } |
21 | EXPORT_SYMBOL(flow_rule_alloc); | |
22 | ||
23 | #define FLOW_DISSECTOR_MATCH(__rule, __type, __out) \ | |
24 | const struct flow_match *__m = &(__rule)->match; \ | |
25 | struct flow_dissector *__d = (__m)->dissector; \ | |
26 | \ | |
27 | (__out)->key = skb_flow_dissector_target(__d, __type, (__m)->key); \ | |
28 | (__out)->mask = skb_flow_dissector_target(__d, __type, (__m)->mask); \ | |
29 | ||
9558a83a JP |
30 | void flow_rule_match_meta(const struct flow_rule *rule, |
31 | struct flow_match_meta *out) | |
32 | { | |
33 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_META, out); | |
34 | } | |
35 | EXPORT_SYMBOL(flow_rule_match_meta); | |
36 | ||
8f256622 PNA |
37 | void flow_rule_match_basic(const struct flow_rule *rule, |
38 | struct flow_match_basic *out) | |
39 | { | |
40 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_BASIC, out); | |
41 | } | |
42 | EXPORT_SYMBOL(flow_rule_match_basic); | |
43 | ||
44 | void flow_rule_match_control(const struct flow_rule *rule, | |
45 | struct flow_match_control *out) | |
46 | { | |
47 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_CONTROL, out); | |
48 | } | |
49 | EXPORT_SYMBOL(flow_rule_match_control); | |
50 | ||
51 | void flow_rule_match_eth_addrs(const struct flow_rule *rule, | |
52 | struct flow_match_eth_addrs *out) | |
53 | { | |
54 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS, out); | |
55 | } | |
56 | EXPORT_SYMBOL(flow_rule_match_eth_addrs); | |
57 | ||
58 | void flow_rule_match_vlan(const struct flow_rule *rule, | |
59 | struct flow_match_vlan *out) | |
60 | { | |
61 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_VLAN, out); | |
62 | } | |
63 | EXPORT_SYMBOL(flow_rule_match_vlan); | |
64 | ||
bae9ed69 EC |
65 | void flow_rule_match_cvlan(const struct flow_rule *rule, |
66 | struct flow_match_vlan *out) | |
67 | { | |
68 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_CVLAN, out); | |
69 | } | |
70 | EXPORT_SYMBOL(flow_rule_match_cvlan); | |
71 | ||
8f256622 PNA |
72 | void flow_rule_match_ipv4_addrs(const struct flow_rule *rule, |
73 | struct flow_match_ipv4_addrs *out) | |
74 | { | |
75 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS, out); | |
76 | } | |
77 | EXPORT_SYMBOL(flow_rule_match_ipv4_addrs); | |
78 | ||
79 | void flow_rule_match_ipv6_addrs(const struct flow_rule *rule, | |
80 | struct flow_match_ipv6_addrs *out) | |
81 | { | |
82 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS, out); | |
83 | } | |
84 | EXPORT_SYMBOL(flow_rule_match_ipv6_addrs); | |
85 | ||
86 | void flow_rule_match_ip(const struct flow_rule *rule, | |
87 | struct flow_match_ip *out) | |
88 | { | |
89 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_IP, out); | |
90 | } | |
91 | EXPORT_SYMBOL(flow_rule_match_ip); | |
92 | ||
93 | void flow_rule_match_ports(const struct flow_rule *rule, | |
94 | struct flow_match_ports *out) | |
95 | { | |
96 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_PORTS, out); | |
97 | } | |
98 | EXPORT_SYMBOL(flow_rule_match_ports); | |
99 | ||
100 | void flow_rule_match_tcp(const struct flow_rule *rule, | |
101 | struct flow_match_tcp *out) | |
102 | { | |
103 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_TCP, out); | |
104 | } | |
105 | EXPORT_SYMBOL(flow_rule_match_tcp); | |
106 | ||
107 | void flow_rule_match_icmp(const struct flow_rule *rule, | |
108 | struct flow_match_icmp *out) | |
109 | { | |
110 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ICMP, out); | |
111 | } | |
112 | EXPORT_SYMBOL(flow_rule_match_icmp); | |
113 | ||
114 | void flow_rule_match_mpls(const struct flow_rule *rule, | |
115 | struct flow_match_mpls *out) | |
116 | { | |
117 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_MPLS, out); | |
118 | } | |
119 | EXPORT_SYMBOL(flow_rule_match_mpls); | |
120 | ||
121 | void flow_rule_match_enc_control(const struct flow_rule *rule, | |
122 | struct flow_match_control *out) | |
123 | { | |
124 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_CONTROL, out); | |
125 | } | |
126 | EXPORT_SYMBOL(flow_rule_match_enc_control); | |
127 | ||
128 | void flow_rule_match_enc_ipv4_addrs(const struct flow_rule *rule, | |
129 | struct flow_match_ipv4_addrs *out) | |
130 | { | |
131 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, out); | |
132 | } | |
133 | EXPORT_SYMBOL(flow_rule_match_enc_ipv4_addrs); | |
134 | ||
135 | void flow_rule_match_enc_ipv6_addrs(const struct flow_rule *rule, | |
136 | struct flow_match_ipv6_addrs *out) | |
137 | { | |
138 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, out); | |
139 | } | |
140 | EXPORT_SYMBOL(flow_rule_match_enc_ipv6_addrs); | |
141 | ||
142 | void flow_rule_match_enc_ip(const struct flow_rule *rule, | |
143 | struct flow_match_ip *out) | |
144 | { | |
145 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_IP, out); | |
146 | } | |
147 | EXPORT_SYMBOL(flow_rule_match_enc_ip); | |
148 | ||
149 | void flow_rule_match_enc_ports(const struct flow_rule *rule, | |
150 | struct flow_match_ports *out) | |
151 | { | |
152 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_PORTS, out); | |
153 | } | |
154 | EXPORT_SYMBOL(flow_rule_match_enc_ports); | |
155 | ||
156 | void flow_rule_match_enc_keyid(const struct flow_rule *rule, | |
157 | struct flow_match_enc_keyid *out) | |
158 | { | |
159 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_KEYID, out); | |
160 | } | |
161 | EXPORT_SYMBOL(flow_rule_match_enc_keyid); | |
162 | ||
163 | void flow_rule_match_enc_opts(const struct flow_rule *rule, | |
164 | struct flow_match_enc_opts *out) | |
165 | { | |
166 | FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_ENC_OPTS, out); | |
167 | } | |
168 | EXPORT_SYMBOL(flow_rule_match_enc_opts); | |
4e95bc26 | 169 | |
a7323311 | 170 | struct flow_block_cb *flow_block_cb_alloc(flow_setup_cb_t *cb, |
d63db30c PNA |
171 | void *cb_ident, void *cb_priv, |
172 | void (*release)(void *cb_priv)) | |
173 | { | |
174 | struct flow_block_cb *block_cb; | |
175 | ||
176 | block_cb = kzalloc(sizeof(*block_cb), GFP_KERNEL); | |
177 | if (!block_cb) | |
178 | return ERR_PTR(-ENOMEM); | |
179 | ||
180 | block_cb->cb = cb; | |
181 | block_cb->cb_ident = cb_ident; | |
182 | block_cb->cb_priv = cb_priv; | |
183 | block_cb->release = release; | |
184 | ||
185 | return block_cb; | |
186 | } | |
187 | EXPORT_SYMBOL(flow_block_cb_alloc); | |
188 | ||
189 | void flow_block_cb_free(struct flow_block_cb *block_cb) | |
190 | { | |
191 | if (block_cb->release) | |
192 | block_cb->release(block_cb->cb_priv); | |
193 | ||
194 | kfree(block_cb); | |
195 | } | |
196 | EXPORT_SYMBOL(flow_block_cb_free); | |
197 | ||
14bfb13f | 198 | struct flow_block_cb *flow_block_cb_lookup(struct flow_block *block, |
a7323311 | 199 | flow_setup_cb_t *cb, void *cb_ident) |
da3eeb90 PNA |
200 | { |
201 | struct flow_block_cb *block_cb; | |
202 | ||
14bfb13f | 203 | list_for_each_entry(block_cb, &block->cb_list, list) { |
0c7294dd | 204 | if (block_cb->cb == cb && |
da3eeb90 PNA |
205 | block_cb->cb_ident == cb_ident) |
206 | return block_cb; | |
207 | } | |
208 | ||
209 | return NULL; | |
210 | } | |
211 | EXPORT_SYMBOL(flow_block_cb_lookup); | |
212 | ||
67bd0d5e PNA |
213 | void *flow_block_cb_priv(struct flow_block_cb *block_cb) |
214 | { | |
215 | return block_cb->cb_priv; | |
216 | } | |
217 | EXPORT_SYMBOL(flow_block_cb_priv); | |
218 | ||
219 | void flow_block_cb_incref(struct flow_block_cb *block_cb) | |
220 | { | |
221 | block_cb->refcnt++; | |
222 | } | |
223 | EXPORT_SYMBOL(flow_block_cb_incref); | |
224 | ||
225 | unsigned int flow_block_cb_decref(struct flow_block_cb *block_cb) | |
226 | { | |
227 | return --block_cb->refcnt; | |
228 | } | |
229 | EXPORT_SYMBOL(flow_block_cb_decref); | |
230 | ||
a7323311 | 231 | bool flow_block_cb_is_busy(flow_setup_cb_t *cb, void *cb_ident, |
0d4fd02e PNA |
232 | struct list_head *driver_block_list) |
233 | { | |
234 | struct flow_block_cb *block_cb; | |
235 | ||
236 | list_for_each_entry(block_cb, driver_block_list, driver_list) { | |
237 | if (block_cb->cb == cb && | |
238 | block_cb->cb_ident == cb_ident) | |
239 | return true; | |
240 | } | |
241 | ||
242 | return false; | |
243 | } | |
244 | EXPORT_SYMBOL(flow_block_cb_is_busy); | |
245 | ||
4e95bc26 PNA |
246 | int flow_block_cb_setup_simple(struct flow_block_offload *f, |
247 | struct list_head *driver_block_list, | |
a7323311 PNA |
248 | flow_setup_cb_t *cb, |
249 | void *cb_ident, void *cb_priv, | |
4e95bc26 PNA |
250 | bool ingress_only) |
251 | { | |
955bcb6e PNA |
252 | struct flow_block_cb *block_cb; |
253 | ||
4e95bc26 | 254 | if (ingress_only && |
32f8c409 | 255 | f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) |
4e95bc26 PNA |
256 | return -EOPNOTSUPP; |
257 | ||
258 | f->driver_block_list = driver_block_list; | |
259 | ||
260 | switch (f->command) { | |
9c0e189e | 261 | case FLOW_BLOCK_BIND: |
0d4fd02e PNA |
262 | if (flow_block_cb_is_busy(cb, cb_ident, driver_block_list)) |
263 | return -EBUSY; | |
264 | ||
0c7294dd | 265 | block_cb = flow_block_cb_alloc(cb, cb_ident, cb_priv, NULL); |
955bcb6e PNA |
266 | if (IS_ERR(block_cb)) |
267 | return PTR_ERR(block_cb); | |
268 | ||
269 | flow_block_cb_add(block_cb, f); | |
270 | list_add_tail(&block_cb->driver_list, driver_block_list); | |
271 | return 0; | |
9c0e189e | 272 | case FLOW_BLOCK_UNBIND: |
14bfb13f | 273 | block_cb = flow_block_cb_lookup(f->block, cb, cb_ident); |
955bcb6e PNA |
274 | if (!block_cb) |
275 | return -ENOENT; | |
276 | ||
277 | flow_block_cb_remove(block_cb, f); | |
278 | list_del(&block_cb->driver_list); | |
4e95bc26 PNA |
279 | return 0; |
280 | default: | |
281 | return -EOPNOTSUPP; | |
282 | } | |
283 | } | |
284 | EXPORT_SYMBOL(flow_block_cb_setup_simple); | |
4e481908 | 285 | |
1150ab0f | 286 | static LIST_HEAD(block_ing_cb_list); |
287 | ||
4e481908 | 288 | static struct rhashtable indr_setup_block_ht; |
289 | ||
290 | struct flow_indr_block_cb { | |
291 | struct list_head list; | |
292 | void *cb_priv; | |
293 | flow_indr_block_bind_cb_t *cb; | |
294 | void *cb_ident; | |
295 | }; | |
296 | ||
297 | struct flow_indr_block_dev { | |
298 | struct rhash_head ht_node; | |
299 | struct net_device *dev; | |
300 | unsigned int refcnt; | |
4e481908 | 301 | struct list_head cb_list; |
302 | }; | |
303 | ||
304 | static const struct rhashtable_params flow_indr_setup_block_ht_params = { | |
305 | .key_offset = offsetof(struct flow_indr_block_dev, dev), | |
306 | .head_offset = offsetof(struct flow_indr_block_dev, ht_node), | |
307 | .key_len = sizeof(struct net_device *), | |
308 | }; | |
309 | ||
310 | static struct flow_indr_block_dev * | |
311 | flow_indr_block_dev_lookup(struct net_device *dev) | |
312 | { | |
313 | return rhashtable_lookup_fast(&indr_setup_block_ht, &dev, | |
314 | flow_indr_setup_block_ht_params); | |
315 | } | |
316 | ||
317 | static struct flow_indr_block_dev * | |
318 | flow_indr_block_dev_get(struct net_device *dev) | |
319 | { | |
320 | struct flow_indr_block_dev *indr_dev; | |
321 | ||
322 | indr_dev = flow_indr_block_dev_lookup(dev); | |
323 | if (indr_dev) | |
324 | goto inc_ref; | |
325 | ||
326 | indr_dev = kzalloc(sizeof(*indr_dev), GFP_KERNEL); | |
327 | if (!indr_dev) | |
328 | return NULL; | |
329 | ||
330 | INIT_LIST_HEAD(&indr_dev->cb_list); | |
331 | indr_dev->dev = dev; | |
332 | if (rhashtable_insert_fast(&indr_setup_block_ht, &indr_dev->ht_node, | |
333 | flow_indr_setup_block_ht_params)) { | |
334 | kfree(indr_dev); | |
335 | return NULL; | |
336 | } | |
337 | ||
338 | inc_ref: | |
339 | indr_dev->refcnt++; | |
340 | return indr_dev; | |
341 | } | |
342 | ||
343 | static void flow_indr_block_dev_put(struct flow_indr_block_dev *indr_dev) | |
344 | { | |
345 | if (--indr_dev->refcnt) | |
346 | return; | |
347 | ||
348 | rhashtable_remove_fast(&indr_setup_block_ht, &indr_dev->ht_node, | |
349 | flow_indr_setup_block_ht_params); | |
350 | kfree(indr_dev); | |
351 | } | |
352 | ||
353 | static struct flow_indr_block_cb * | |
354 | flow_indr_block_cb_lookup(struct flow_indr_block_dev *indr_dev, | |
355 | flow_indr_block_bind_cb_t *cb, void *cb_ident) | |
356 | { | |
357 | struct flow_indr_block_cb *indr_block_cb; | |
358 | ||
359 | list_for_each_entry(indr_block_cb, &indr_dev->cb_list, list) | |
360 | if (indr_block_cb->cb == cb && | |
361 | indr_block_cb->cb_ident == cb_ident) | |
362 | return indr_block_cb; | |
363 | return NULL; | |
364 | } | |
365 | ||
366 | static struct flow_indr_block_cb * | |
367 | flow_indr_block_cb_add(struct flow_indr_block_dev *indr_dev, void *cb_priv, | |
368 | flow_indr_block_bind_cb_t *cb, void *cb_ident) | |
369 | { | |
370 | struct flow_indr_block_cb *indr_block_cb; | |
371 | ||
372 | indr_block_cb = flow_indr_block_cb_lookup(indr_dev, cb, cb_ident); | |
373 | if (indr_block_cb) | |
374 | return ERR_PTR(-EEXIST); | |
375 | ||
376 | indr_block_cb = kzalloc(sizeof(*indr_block_cb), GFP_KERNEL); | |
377 | if (!indr_block_cb) | |
378 | return ERR_PTR(-ENOMEM); | |
379 | ||
380 | indr_block_cb->cb_priv = cb_priv; | |
381 | indr_block_cb->cb = cb; | |
382 | indr_block_cb->cb_ident = cb_ident; | |
383 | list_add(&indr_block_cb->list, &indr_dev->cb_list); | |
384 | ||
385 | return indr_block_cb; | |
386 | } | |
387 | ||
388 | static void flow_indr_block_cb_del(struct flow_indr_block_cb *indr_block_cb) | |
389 | { | |
390 | list_del(&indr_block_cb->list); | |
391 | kfree(indr_block_cb); | |
392 | } | |
393 | ||
607f625b VB |
394 | static DEFINE_MUTEX(flow_indr_block_ing_cb_lock); |
395 | ||
1150ab0f | 396 | static void flow_block_ing_cmd(struct net_device *dev, |
397 | flow_indr_block_bind_cb_t *cb, | |
398 | void *cb_priv, | |
399 | enum flow_block_command command) | |
400 | { | |
401 | struct flow_indr_block_ing_entry *entry; | |
402 | ||
607f625b VB |
403 | mutex_lock(&flow_indr_block_ing_cb_lock); |
404 | list_for_each_entry(entry, &block_ing_cb_list, list) { | |
1150ab0f | 405 | entry->cb(dev, cb, cb_priv, command); |
406 | } | |
607f625b | 407 | mutex_unlock(&flow_indr_block_ing_cb_lock); |
1150ab0f | 408 | } |
409 | ||
4e481908 | 410 | int __flow_indr_block_cb_register(struct net_device *dev, void *cb_priv, |
411 | flow_indr_block_bind_cb_t *cb, | |
412 | void *cb_ident) | |
413 | { | |
414 | struct flow_indr_block_cb *indr_block_cb; | |
415 | struct flow_indr_block_dev *indr_dev; | |
416 | int err; | |
417 | ||
418 | indr_dev = flow_indr_block_dev_get(dev); | |
419 | if (!indr_dev) | |
420 | return -ENOMEM; | |
421 | ||
422 | indr_block_cb = flow_indr_block_cb_add(indr_dev, cb_priv, cb, cb_ident); | |
423 | err = PTR_ERR_OR_ZERO(indr_block_cb); | |
424 | if (err) | |
425 | goto err_dev_put; | |
426 | ||
1150ab0f | 427 | flow_block_ing_cmd(dev, indr_block_cb->cb, indr_block_cb->cb_priv, |
428 | FLOW_BLOCK_BIND); | |
4e481908 | 429 | |
430 | return 0; | |
431 | ||
432 | err_dev_put: | |
433 | flow_indr_block_dev_put(indr_dev); | |
434 | return err; | |
435 | } | |
436 | EXPORT_SYMBOL_GPL(__flow_indr_block_cb_register); | |
437 | ||
438 | int flow_indr_block_cb_register(struct net_device *dev, void *cb_priv, | |
439 | flow_indr_block_bind_cb_t *cb, | |
440 | void *cb_ident) | |
441 | { | |
442 | int err; | |
443 | ||
444 | rtnl_lock(); | |
445 | err = __flow_indr_block_cb_register(dev, cb_priv, cb, cb_ident); | |
446 | rtnl_unlock(); | |
447 | ||
448 | return err; | |
449 | } | |
450 | EXPORT_SYMBOL_GPL(flow_indr_block_cb_register); | |
451 | ||
452 | void __flow_indr_block_cb_unregister(struct net_device *dev, | |
453 | flow_indr_block_bind_cb_t *cb, | |
454 | void *cb_ident) | |
455 | { | |
456 | struct flow_indr_block_cb *indr_block_cb; | |
457 | struct flow_indr_block_dev *indr_dev; | |
458 | ||
459 | indr_dev = flow_indr_block_dev_lookup(dev); | |
460 | if (!indr_dev) | |
461 | return; | |
462 | ||
463 | indr_block_cb = flow_indr_block_cb_lookup(indr_dev, cb, cb_ident); | |
464 | if (!indr_block_cb) | |
465 | return; | |
466 | ||
1150ab0f | 467 | flow_block_ing_cmd(dev, indr_block_cb->cb, indr_block_cb->cb_priv, |
468 | FLOW_BLOCK_UNBIND); | |
4e481908 | 469 | |
470 | flow_indr_block_cb_del(indr_block_cb); | |
471 | flow_indr_block_dev_put(indr_dev); | |
472 | } | |
473 | EXPORT_SYMBOL_GPL(__flow_indr_block_cb_unregister); | |
474 | ||
475 | void flow_indr_block_cb_unregister(struct net_device *dev, | |
476 | flow_indr_block_bind_cb_t *cb, | |
477 | void *cb_ident) | |
478 | { | |
479 | rtnl_lock(); | |
480 | __flow_indr_block_cb_unregister(dev, cb, cb_ident); | |
481 | rtnl_unlock(); | |
482 | } | |
483 | EXPORT_SYMBOL_GPL(flow_indr_block_cb_unregister); | |
484 | ||
485 | void flow_indr_block_call(struct net_device *dev, | |
4e481908 | 486 | struct flow_block_offload *bo, |
487 | enum flow_block_command command) | |
488 | { | |
489 | struct flow_indr_block_cb *indr_block_cb; | |
490 | struct flow_indr_block_dev *indr_dev; | |
491 | ||
492 | indr_dev = flow_indr_block_dev_lookup(dev); | |
493 | if (!indr_dev) | |
494 | return; | |
495 | ||
4e481908 | 496 | list_for_each_entry(indr_block_cb, &indr_dev->cb_list, list) |
497 | indr_block_cb->cb(dev, indr_block_cb->cb_priv, TC_SETUP_BLOCK, | |
498 | bo); | |
499 | } | |
500 | EXPORT_SYMBOL_GPL(flow_indr_block_call); | |
501 | ||
1150ab0f | 502 | void flow_indr_add_block_ing_cb(struct flow_indr_block_ing_entry *entry) |
503 | { | |
504 | mutex_lock(&flow_indr_block_ing_cb_lock); | |
607f625b | 505 | list_add_tail(&entry->list, &block_ing_cb_list); |
1150ab0f | 506 | mutex_unlock(&flow_indr_block_ing_cb_lock); |
507 | } | |
508 | EXPORT_SYMBOL_GPL(flow_indr_add_block_ing_cb); | |
509 | ||
510 | void flow_indr_del_block_ing_cb(struct flow_indr_block_ing_entry *entry) | |
511 | { | |
512 | mutex_lock(&flow_indr_block_ing_cb_lock); | |
607f625b | 513 | list_del(&entry->list); |
1150ab0f | 514 | mutex_unlock(&flow_indr_block_ing_cb_lock); |
515 | } | |
516 | EXPORT_SYMBOL_GPL(flow_indr_del_block_ing_cb); | |
517 | ||
4e481908 | 518 | static int __init init_flow_indr_rhashtable(void) |
519 | { | |
520 | return rhashtable_init(&indr_setup_block_ht, | |
521 | &flow_indr_setup_block_ht_params); | |
522 | } | |
523 | subsys_initcall(init_flow_indr_rhashtable); |