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Commit | Line | Data |
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77b9900e JP |
1 | /* |
2 | * net/sched/cls_flower.c Flower classifier | |
3 | * | |
4 | * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/module.h> | |
15 | #include <linux/rhashtable.h> | |
d9363774 | 16 | #include <linux/workqueue.h> |
06177558 | 17 | #include <linux/refcount.h> |
77b9900e JP |
18 | |
19 | #include <linux/if_ether.h> | |
20 | #include <linux/in6.h> | |
21 | #include <linux/ip.h> | |
a577d8f7 | 22 | #include <linux/mpls.h> |
77b9900e JP |
23 | |
24 | #include <net/sch_generic.h> | |
25 | #include <net/pkt_cls.h> | |
26 | #include <net/ip.h> | |
27 | #include <net/flow_dissector.h> | |
0a6e7778 | 28 | #include <net/geneve.h> |
77b9900e | 29 | |
bc3103f1 AV |
30 | #include <net/dst.h> |
31 | #include <net/dst_metadata.h> | |
32 | ||
77b9900e JP |
33 | struct fl_flow_key { |
34 | int indev_ifindex; | |
42aecaa9 | 35 | struct flow_dissector_key_control control; |
bc3103f1 | 36 | struct flow_dissector_key_control enc_control; |
77b9900e JP |
37 | struct flow_dissector_key_basic basic; |
38 | struct flow_dissector_key_eth_addrs eth; | |
9399ae9a | 39 | struct flow_dissector_key_vlan vlan; |
d64efd09 | 40 | struct flow_dissector_key_vlan cvlan; |
77b9900e | 41 | union { |
c3f83241 | 42 | struct flow_dissector_key_ipv4_addrs ipv4; |
77b9900e JP |
43 | struct flow_dissector_key_ipv6_addrs ipv6; |
44 | }; | |
45 | struct flow_dissector_key_ports tp; | |
7b684884 | 46 | struct flow_dissector_key_icmp icmp; |
99d31326 | 47 | struct flow_dissector_key_arp arp; |
bc3103f1 AV |
48 | struct flow_dissector_key_keyid enc_key_id; |
49 | union { | |
50 | struct flow_dissector_key_ipv4_addrs enc_ipv4; | |
51 | struct flow_dissector_key_ipv6_addrs enc_ipv6; | |
52 | }; | |
f4d997fd | 53 | struct flow_dissector_key_ports enc_tp; |
a577d8f7 | 54 | struct flow_dissector_key_mpls mpls; |
fdfc7dd6 | 55 | struct flow_dissector_key_tcp tcp; |
4d80cc0a | 56 | struct flow_dissector_key_ip ip; |
0e2c17b6 | 57 | struct flow_dissector_key_ip enc_ip; |
0a6e7778 | 58 | struct flow_dissector_key_enc_opts enc_opts; |
5c72299f AN |
59 | struct flow_dissector_key_ports tp_min; |
60 | struct flow_dissector_key_ports tp_max; | |
77b9900e JP |
61 | } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */ |
62 | ||
63 | struct fl_flow_mask_range { | |
64 | unsigned short int start; | |
65 | unsigned short int end; | |
66 | }; | |
67 | ||
68 | struct fl_flow_mask { | |
69 | struct fl_flow_key key; | |
70 | struct fl_flow_mask_range range; | |
5c72299f | 71 | u32 flags; |
05cd271f PB |
72 | struct rhash_head ht_node; |
73 | struct rhashtable ht; | |
74 | struct rhashtable_params filter_ht_params; | |
75 | struct flow_dissector dissector; | |
76 | struct list_head filters; | |
44a5cd43 | 77 | struct rcu_work rwork; |
05cd271f | 78 | struct list_head list; |
77b9900e JP |
79 | }; |
80 | ||
b95ec7eb JP |
81 | struct fl_flow_tmplt { |
82 | struct fl_flow_key dummy_key; | |
83 | struct fl_flow_key mask; | |
84 | struct flow_dissector dissector; | |
85 | struct tcf_chain *chain; | |
86 | }; | |
87 | ||
77b9900e JP |
88 | struct cls_fl_head { |
89 | struct rhashtable ht; | |
05cd271f | 90 | struct list_head masks; |
aaa908ff | 91 | struct rcu_work rwork; |
c15ab236 | 92 | struct idr handle_idr; |
77b9900e JP |
93 | }; |
94 | ||
95 | struct cls_fl_filter { | |
05cd271f | 96 | struct fl_flow_mask *mask; |
77b9900e JP |
97 | struct rhash_head ht_node; |
98 | struct fl_flow_key mkey; | |
99 | struct tcf_exts exts; | |
100 | struct tcf_result res; | |
101 | struct fl_flow_key key; | |
102 | struct list_head list; | |
103 | u32 handle; | |
e69985c6 | 104 | u32 flags; |
86c55361 | 105 | u32 in_hw_count; |
aaa908ff | 106 | struct rcu_work rwork; |
7091d8c7 | 107 | struct net_device *hw_dev; |
06177558 VB |
108 | /* Flower classifier is unlocked, which means that its reference counter |
109 | * can be changed concurrently without any kind of external | |
110 | * synchronization. Use atomic reference counter to be concurrency-safe. | |
111 | */ | |
112 | refcount_t refcnt; | |
b2552b8c | 113 | bool deleted; |
77b9900e JP |
114 | }; |
115 | ||
05cd271f PB |
116 | static const struct rhashtable_params mask_ht_params = { |
117 | .key_offset = offsetof(struct fl_flow_mask, key), | |
118 | .key_len = sizeof(struct fl_flow_key), | |
119 | .head_offset = offsetof(struct fl_flow_mask, ht_node), | |
120 | .automatic_shrinking = true, | |
121 | }; | |
122 | ||
77b9900e JP |
123 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) |
124 | { | |
125 | return mask->range.end - mask->range.start; | |
126 | } | |
127 | ||
128 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
129 | { | |
130 | const u8 *bytes = (const u8 *) &mask->key; | |
131 | size_t size = sizeof(mask->key); | |
05cd271f | 132 | size_t i, first = 0, last; |
77b9900e | 133 | |
05cd271f PB |
134 | for (i = 0; i < size; i++) { |
135 | if (bytes[i]) { | |
136 | first = i; | |
137 | break; | |
138 | } | |
139 | } | |
140 | last = first; | |
141 | for (i = size - 1; i != first; i--) { | |
77b9900e | 142 | if (bytes[i]) { |
77b9900e | 143 | last = i; |
05cd271f | 144 | break; |
77b9900e JP |
145 | } |
146 | } | |
147 | mask->range.start = rounddown(first, sizeof(long)); | |
148 | mask->range.end = roundup(last + 1, sizeof(long)); | |
149 | } | |
150 | ||
151 | static void *fl_key_get_start(struct fl_flow_key *key, | |
152 | const struct fl_flow_mask *mask) | |
153 | { | |
154 | return (u8 *) key + mask->range.start; | |
155 | } | |
156 | ||
157 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
158 | struct fl_flow_mask *mask) | |
159 | { | |
160 | const long *lkey = fl_key_get_start(key, mask); | |
161 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
162 | long *lmkey = fl_key_get_start(mkey, mask); | |
163 | int i; | |
164 | ||
165 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
166 | *lmkey++ = *lkey++ & *lmask++; | |
167 | } | |
168 | ||
b95ec7eb JP |
169 | static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt, |
170 | struct fl_flow_mask *mask) | |
171 | { | |
172 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
173 | const long *ltmplt; | |
174 | int i; | |
175 | ||
176 | if (!tmplt) | |
177 | return true; | |
178 | ltmplt = fl_key_get_start(&tmplt->mask, mask); | |
179 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) { | |
180 | if (~*ltmplt++ & *lmask++) | |
181 | return false; | |
182 | } | |
183 | return true; | |
184 | } | |
185 | ||
77b9900e JP |
186 | static void fl_clear_masked_range(struct fl_flow_key *key, |
187 | struct fl_flow_mask *mask) | |
188 | { | |
189 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
190 | } | |
191 | ||
5c72299f AN |
192 | static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter, |
193 | struct fl_flow_key *key, | |
194 | struct fl_flow_key *mkey) | |
195 | { | |
196 | __be16 min_mask, max_mask, min_val, max_val; | |
197 | ||
198 | min_mask = htons(filter->mask->key.tp_min.dst); | |
199 | max_mask = htons(filter->mask->key.tp_max.dst); | |
200 | min_val = htons(filter->key.tp_min.dst); | |
201 | max_val = htons(filter->key.tp_max.dst); | |
202 | ||
203 | if (min_mask && max_mask) { | |
204 | if (htons(key->tp.dst) < min_val || | |
205 | htons(key->tp.dst) > max_val) | |
206 | return false; | |
207 | ||
208 | /* skb does not have min and max values */ | |
209 | mkey->tp_min.dst = filter->mkey.tp_min.dst; | |
210 | mkey->tp_max.dst = filter->mkey.tp_max.dst; | |
211 | } | |
212 | return true; | |
213 | } | |
214 | ||
215 | static bool fl_range_port_src_cmp(struct cls_fl_filter *filter, | |
216 | struct fl_flow_key *key, | |
217 | struct fl_flow_key *mkey) | |
218 | { | |
219 | __be16 min_mask, max_mask, min_val, max_val; | |
220 | ||
221 | min_mask = htons(filter->mask->key.tp_min.src); | |
222 | max_mask = htons(filter->mask->key.tp_max.src); | |
223 | min_val = htons(filter->key.tp_min.src); | |
224 | max_val = htons(filter->key.tp_max.src); | |
225 | ||
226 | if (min_mask && max_mask) { | |
227 | if (htons(key->tp.src) < min_val || | |
228 | htons(key->tp.src) > max_val) | |
229 | return false; | |
230 | ||
231 | /* skb does not have min and max values */ | |
232 | mkey->tp_min.src = filter->mkey.tp_min.src; | |
233 | mkey->tp_max.src = filter->mkey.tp_max.src; | |
234 | } | |
235 | return true; | |
236 | } | |
237 | ||
238 | static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask, | |
239 | struct fl_flow_key *mkey) | |
a3308d8f | 240 | { |
05cd271f PB |
241 | return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask), |
242 | mask->filter_ht_params); | |
a3308d8f PB |
243 | } |
244 | ||
5c72299f AN |
245 | static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask, |
246 | struct fl_flow_key *mkey, | |
247 | struct fl_flow_key *key) | |
248 | { | |
249 | struct cls_fl_filter *filter, *f; | |
250 | ||
251 | list_for_each_entry_rcu(filter, &mask->filters, list) { | |
252 | if (!fl_range_port_dst_cmp(filter, key, mkey)) | |
253 | continue; | |
254 | ||
255 | if (!fl_range_port_src_cmp(filter, key, mkey)) | |
256 | continue; | |
257 | ||
258 | f = __fl_lookup(mask, mkey); | |
259 | if (f) | |
260 | return f; | |
261 | } | |
262 | return NULL; | |
263 | } | |
264 | ||
265 | static struct cls_fl_filter *fl_lookup(struct fl_flow_mask *mask, | |
266 | struct fl_flow_key *mkey, | |
267 | struct fl_flow_key *key) | |
268 | { | |
269 | if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE)) | |
270 | return fl_lookup_range(mask, mkey, key); | |
271 | ||
272 | return __fl_lookup(mask, mkey); | |
273 | } | |
274 | ||
77b9900e JP |
275 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
276 | struct tcf_result *res) | |
277 | { | |
278 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
279 | struct cls_fl_filter *f; | |
05cd271f | 280 | struct fl_flow_mask *mask; |
77b9900e JP |
281 | struct fl_flow_key skb_key; |
282 | struct fl_flow_key skb_mkey; | |
283 | ||
05cd271f PB |
284 | list_for_each_entry_rcu(mask, &head->masks, list) { |
285 | fl_clear_masked_range(&skb_key, mask); | |
bc3103f1 | 286 | |
05cd271f PB |
287 | skb_key.indev_ifindex = skb->skb_iif; |
288 | /* skb_flow_dissect() does not set n_proto in case an unknown | |
289 | * protocol, so do it rather here. | |
290 | */ | |
291 | skb_key.basic.n_proto = skb->protocol; | |
292 | skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key); | |
293 | skb_flow_dissect(skb, &mask->dissector, &skb_key, 0); | |
77b9900e | 294 | |
05cd271f | 295 | fl_set_masked_key(&skb_mkey, &skb_key, mask); |
77b9900e | 296 | |
5c72299f | 297 | f = fl_lookup(mask, &skb_mkey, &skb_key); |
05cd271f PB |
298 | if (f && !tc_skip_sw(f->flags)) { |
299 | *res = f->res; | |
300 | return tcf_exts_exec(skb, &f->exts, res); | |
301 | } | |
77b9900e JP |
302 | } |
303 | return -1; | |
304 | } | |
305 | ||
306 | static int fl_init(struct tcf_proto *tp) | |
307 | { | |
308 | struct cls_fl_head *head; | |
309 | ||
310 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
311 | if (!head) | |
312 | return -ENOBUFS; | |
313 | ||
05cd271f | 314 | INIT_LIST_HEAD_RCU(&head->masks); |
77b9900e | 315 | rcu_assign_pointer(tp->root, head); |
c15ab236 | 316 | idr_init(&head->handle_idr); |
77b9900e | 317 | |
05cd271f PB |
318 | return rhashtable_init(&head->ht, &mask_ht_params); |
319 | } | |
320 | ||
44a5cd43 PA |
321 | static void fl_mask_free(struct fl_flow_mask *mask) |
322 | { | |
323 | rhashtable_destroy(&mask->ht); | |
324 | kfree(mask); | |
325 | } | |
326 | ||
327 | static void fl_mask_free_work(struct work_struct *work) | |
328 | { | |
329 | struct fl_flow_mask *mask = container_of(to_rcu_work(work), | |
330 | struct fl_flow_mask, rwork); | |
331 | ||
332 | fl_mask_free(mask); | |
333 | } | |
334 | ||
05cd271f PB |
335 | static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask, |
336 | bool async) | |
337 | { | |
338 | if (!list_empty(&mask->filters)) | |
339 | return false; | |
340 | ||
341 | rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params); | |
05cd271f PB |
342 | list_del_rcu(&mask->list); |
343 | if (async) | |
44a5cd43 | 344 | tcf_queue_work(&mask->rwork, fl_mask_free_work); |
05cd271f | 345 | else |
44a5cd43 | 346 | fl_mask_free(mask); |
05cd271f PB |
347 | |
348 | return true; | |
77b9900e JP |
349 | } |
350 | ||
0dadc117 CW |
351 | static void __fl_destroy_filter(struct cls_fl_filter *f) |
352 | { | |
353 | tcf_exts_destroy(&f->exts); | |
354 | tcf_exts_put_net(&f->exts); | |
355 | kfree(f); | |
356 | } | |
357 | ||
0552c8af | 358 | static void fl_destroy_filter_work(struct work_struct *work) |
77b9900e | 359 | { |
aaa908ff CW |
360 | struct cls_fl_filter *f = container_of(to_rcu_work(work), |
361 | struct cls_fl_filter, rwork); | |
77b9900e | 362 | |
0552c8af | 363 | rtnl_lock(); |
0dadc117 | 364 | __fl_destroy_filter(f); |
0552c8af CW |
365 | rtnl_unlock(); |
366 | } | |
367 | ||
1b0f8037 JK |
368 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f, |
369 | struct netlink_ext_ack *extack) | |
5b33f488 | 370 | { |
de4784ca | 371 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 372 | struct tcf_block *block = tp->chain->block; |
5b33f488 | 373 | |
1b0f8037 | 374 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack); |
de4784ca JP |
375 | cls_flower.command = TC_CLSFLOWER_DESTROY; |
376 | cls_flower.cookie = (unsigned long) f; | |
5b33f488 | 377 | |
aeb3fecd | 378 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false); |
caa72601 | 379 | tcf_block_offload_dec(block, &f->flags); |
5b33f488 AV |
380 | } |
381 | ||
e8eb36cd | 382 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
41002038 QM |
383 | struct cls_fl_filter *f, |
384 | struct netlink_ext_ack *extack) | |
5b33f488 | 385 | { |
de4784ca | 386 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 387 | struct tcf_block *block = tp->chain->block; |
717503b9 | 388 | bool skip_sw = tc_skip_sw(f->flags); |
e8eb36cd | 389 | int err; |
5b33f488 | 390 | |
e3ab786b | 391 | cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts)); |
8f256622 PNA |
392 | if (!cls_flower.rule) |
393 | return -ENOMEM; | |
394 | ||
ea205940 | 395 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack); |
de4784ca JP |
396 | cls_flower.command = TC_CLSFLOWER_REPLACE; |
397 | cls_flower.cookie = (unsigned long) f; | |
8f256622 PNA |
398 | cls_flower.rule->match.dissector = &f->mask->dissector; |
399 | cls_flower.rule->match.mask = &f->mask->key; | |
400 | cls_flower.rule->match.key = &f->mkey; | |
384c181e | 401 | cls_flower.classid = f->res.classid; |
5b33f488 | 402 | |
3a7b6861 PNA |
403 | err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts); |
404 | if (err) { | |
405 | kfree(cls_flower.rule); | |
1f15bb4f VB |
406 | if (skip_sw) { |
407 | NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action"); | |
408 | return err; | |
409 | } | |
410 | return 0; | |
3a7b6861 PNA |
411 | } |
412 | ||
aeb3fecd | 413 | err = tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, skip_sw); |
8f256622 PNA |
414 | kfree(cls_flower.rule); |
415 | ||
717503b9 | 416 | if (err < 0) { |
1b0f8037 | 417 | fl_hw_destroy_filter(tp, f, NULL); |
e8eb36cd | 418 | return err; |
717503b9 | 419 | } else if (err > 0) { |
31533cba | 420 | f->in_hw_count = err; |
caa72601 | 421 | tcf_block_offload_inc(block, &f->flags); |
717503b9 JP |
422 | } |
423 | ||
424 | if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW)) | |
425 | return -EINVAL; | |
426 | ||
e8eb36cd | 427 | return 0; |
5b33f488 AV |
428 | } |
429 | ||
10cbc684 AV |
430 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
431 | { | |
de4784ca | 432 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 433 | struct tcf_block *block = tp->chain->block; |
10cbc684 | 434 | |
ea205940 | 435 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL); |
de4784ca JP |
436 | cls_flower.command = TC_CLSFLOWER_STATS; |
437 | cls_flower.cookie = (unsigned long) f; | |
384c181e | 438 | cls_flower.classid = f->res.classid; |
10cbc684 | 439 | |
aeb3fecd | 440 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false); |
3b1903ef PNA |
441 | |
442 | tcf_exts_stats_update(&f->exts, cls_flower.stats.bytes, | |
443 | cls_flower.stats.pkts, | |
444 | cls_flower.stats.lastused); | |
10cbc684 AV |
445 | } |
446 | ||
e474619a VB |
447 | static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp) |
448 | { | |
449 | /* Flower classifier only changes root pointer during init and destroy. | |
450 | * Users must obtain reference to tcf_proto instance before calling its | |
451 | * API, so tp->root pointer is protected from concurrent call to | |
452 | * fl_destroy() by reference counting. | |
453 | */ | |
454 | return rcu_dereference_raw(tp->root); | |
455 | } | |
456 | ||
06177558 VB |
457 | static void __fl_put(struct cls_fl_filter *f) |
458 | { | |
459 | if (!refcount_dec_and_test(&f->refcnt)) | |
460 | return; | |
461 | ||
b2552b8c VB |
462 | WARN_ON(!f->deleted); |
463 | ||
06177558 VB |
464 | if (tcf_exts_get_net(&f->exts)) |
465 | tcf_queue_work(&f->rwork, fl_destroy_filter_work); | |
466 | else | |
467 | __fl_destroy_filter(f); | |
468 | } | |
469 | ||
470 | static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle) | |
471 | { | |
472 | struct cls_fl_filter *f; | |
473 | ||
474 | rcu_read_lock(); | |
475 | f = idr_find(&head->handle_idr, handle); | |
476 | if (f && !refcount_inc_not_zero(&f->refcnt)) | |
477 | f = NULL; | |
478 | rcu_read_unlock(); | |
479 | ||
480 | return f; | |
481 | } | |
482 | ||
483 | static struct cls_fl_filter *fl_get_next_filter(struct tcf_proto *tp, | |
484 | unsigned long *handle) | |
485 | { | |
486 | struct cls_fl_head *head = fl_head_dereference(tp); | |
487 | struct cls_fl_filter *f; | |
488 | ||
489 | rcu_read_lock(); | |
490 | while ((f = idr_get_next_ul(&head->handle_idr, handle))) { | |
491 | /* don't return filters that are being deleted */ | |
492 | if (refcount_inc_not_zero(&f->refcnt)) | |
493 | break; | |
494 | ++(*handle); | |
495 | } | |
496 | rcu_read_unlock(); | |
497 | ||
498 | return f; | |
499 | } | |
500 | ||
b2552b8c VB |
501 | static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f, |
502 | bool *last, struct netlink_ext_ack *extack) | |
13fa876e | 503 | { |
e474619a | 504 | struct cls_fl_head *head = fl_head_dereference(tp); |
05cd271f | 505 | bool async = tcf_exts_get_net(&f->exts); |
c15ab236 | 506 | |
b2552b8c VB |
507 | *last = false; |
508 | ||
509 | if (f->deleted) | |
510 | return -ENOENT; | |
511 | ||
512 | f->deleted = true; | |
513 | rhashtable_remove_fast(&f->mask->ht, &f->ht_node, | |
514 | f->mask->filter_ht_params); | |
9c160941 | 515 | idr_remove(&head->handle_idr, f->handle); |
13fa876e | 516 | list_del_rcu(&f->list); |
b2552b8c | 517 | *last = fl_mask_put(head, f->mask, async); |
79685219 | 518 | if (!tc_skip_hw(f->flags)) |
1b0f8037 | 519 | fl_hw_destroy_filter(tp, f, extack); |
13fa876e | 520 | tcf_unbind_filter(tp, &f->res); |
06177558 | 521 | __fl_put(f); |
05cd271f | 522 | |
b2552b8c | 523 | return 0; |
13fa876e RD |
524 | } |
525 | ||
d9363774 DB |
526 | static void fl_destroy_sleepable(struct work_struct *work) |
527 | { | |
aaa908ff CW |
528 | struct cls_fl_head *head = container_of(to_rcu_work(work), |
529 | struct cls_fl_head, | |
530 | rwork); | |
de9dc650 PB |
531 | |
532 | rhashtable_destroy(&head->ht); | |
d9363774 DB |
533 | kfree(head); |
534 | module_put(THIS_MODULE); | |
535 | } | |
536 | ||
12db03b6 VB |
537 | static void fl_destroy(struct tcf_proto *tp, bool rtnl_held, |
538 | struct netlink_ext_ack *extack) | |
77b9900e | 539 | { |
e474619a | 540 | struct cls_fl_head *head = fl_head_dereference(tp); |
05cd271f | 541 | struct fl_flow_mask *mask, *next_mask; |
77b9900e | 542 | struct cls_fl_filter *f, *next; |
b2552b8c | 543 | bool last; |
77b9900e | 544 | |
05cd271f PB |
545 | list_for_each_entry_safe(mask, next_mask, &head->masks, list) { |
546 | list_for_each_entry_safe(f, next, &mask->filters, list) { | |
b2552b8c VB |
547 | __fl_delete(tp, f, &last, extack); |
548 | if (last) | |
05cd271f PB |
549 | break; |
550 | } | |
551 | } | |
c15ab236 | 552 | idr_destroy(&head->handle_idr); |
d9363774 DB |
553 | |
554 | __module_get(THIS_MODULE); | |
aaa908ff | 555 | tcf_queue_work(&head->rwork, fl_destroy_sleepable); |
77b9900e JP |
556 | } |
557 | ||
06177558 VB |
558 | static void fl_put(struct tcf_proto *tp, void *arg) |
559 | { | |
560 | struct cls_fl_filter *f = arg; | |
561 | ||
562 | __fl_put(f); | |
563 | } | |
564 | ||
8113c095 | 565 | static void *fl_get(struct tcf_proto *tp, u32 handle) |
77b9900e | 566 | { |
e474619a | 567 | struct cls_fl_head *head = fl_head_dereference(tp); |
77b9900e | 568 | |
06177558 | 569 | return __fl_get(head, handle); |
77b9900e JP |
570 | } |
571 | ||
572 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
573 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
574 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
575 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
576 | .len = IFNAMSIZ }, | |
577 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
578 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
579 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
580 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
581 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
582 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
583 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
584 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
585 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
586 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
587 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
588 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
589 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
590 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
591 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
592 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
593 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
594 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
595 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
596 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
597 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
598 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
599 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
600 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
601 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
602 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
603 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
604 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
605 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
606 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
607 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
608 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
609 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
610 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
611 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
612 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
613 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
614 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
615 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
616 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
617 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
618 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
619 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
620 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
621 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
622 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
623 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
624 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
625 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
626 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
627 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
628 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
629 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
630 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
631 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
632 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
633 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
634 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
635 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
636 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
637 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
638 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
639 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
640 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
641 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
642 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
fdfc7dd6 JP |
643 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
644 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
645 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
646 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
647 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
648 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
d64efd09 JL |
649 | [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 }, |
650 | [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 }, | |
651 | [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
0e2c17b6 OG |
652 | [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 }, |
653 | [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 }, | |
654 | [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 }, | |
655 | [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 }, | |
0a6e7778 PJV |
656 | [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED }, |
657 | [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED }, | |
658 | }; | |
659 | ||
660 | static const struct nla_policy | |
661 | enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = { | |
662 | [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED }, | |
663 | }; | |
664 | ||
665 | static const struct nla_policy | |
666 | geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = { | |
667 | [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 }, | |
668 | [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 }, | |
669 | [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY, | |
670 | .len = 128 }, | |
77b9900e JP |
671 | }; |
672 | ||
673 | static void fl_set_key_val(struct nlattr **tb, | |
674 | void *val, int val_type, | |
675 | void *mask, int mask_type, int len) | |
676 | { | |
677 | if (!tb[val_type]) | |
678 | return; | |
679 | memcpy(val, nla_data(tb[val_type]), len); | |
680 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
681 | memset(mask, 0xff, len); | |
682 | else | |
683 | memcpy(mask, nla_data(tb[mask_type]), len); | |
684 | } | |
685 | ||
5c72299f AN |
686 | static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key, |
687 | struct fl_flow_key *mask) | |
688 | { | |
689 | fl_set_key_val(tb, &key->tp_min.dst, | |
690 | TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_min.dst, | |
691 | TCA_FLOWER_UNSPEC, sizeof(key->tp_min.dst)); | |
692 | fl_set_key_val(tb, &key->tp_max.dst, | |
693 | TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_max.dst, | |
694 | TCA_FLOWER_UNSPEC, sizeof(key->tp_max.dst)); | |
695 | fl_set_key_val(tb, &key->tp_min.src, | |
696 | TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_min.src, | |
697 | TCA_FLOWER_UNSPEC, sizeof(key->tp_min.src)); | |
698 | fl_set_key_val(tb, &key->tp_max.src, | |
699 | TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_max.src, | |
700 | TCA_FLOWER_UNSPEC, sizeof(key->tp_max.src)); | |
701 | ||
702 | if ((mask->tp_min.dst && mask->tp_max.dst && | |
703 | htons(key->tp_max.dst) <= htons(key->tp_min.dst)) || | |
704 | (mask->tp_min.src && mask->tp_max.src && | |
705 | htons(key->tp_max.src) <= htons(key->tp_min.src))) | |
706 | return -EINVAL; | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
1a7fca63 BL |
711 | static int fl_set_key_mpls(struct nlattr **tb, |
712 | struct flow_dissector_key_mpls *key_val, | |
713 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
714 | { |
715 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
716 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
717 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
718 | } | |
719 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
720 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
721 | ||
722 | if (bos & ~MPLS_BOS_MASK) | |
723 | return -EINVAL; | |
724 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
725 | key_mask->mpls_bos = MPLS_BOS_MASK; |
726 | } | |
727 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
728 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
729 | ||
730 | if (tc & ~MPLS_TC_MASK) | |
731 | return -EINVAL; | |
732 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
733 | key_mask->mpls_tc = MPLS_TC_MASK; |
734 | } | |
735 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
736 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
737 | ||
738 | if (label & ~MPLS_LABEL_MASK) | |
739 | return -EINVAL; | |
740 | key_val->mpls_label = label; | |
a577d8f7 BL |
741 | key_mask->mpls_label = MPLS_LABEL_MASK; |
742 | } | |
1a7fca63 | 743 | return 0; |
a577d8f7 BL |
744 | } |
745 | ||
9399ae9a | 746 | static void fl_set_key_vlan(struct nlattr **tb, |
aaab0834 | 747 | __be16 ethertype, |
d64efd09 | 748 | int vlan_id_key, int vlan_prio_key, |
9399ae9a HHZ |
749 | struct flow_dissector_key_vlan *key_val, |
750 | struct flow_dissector_key_vlan *key_mask) | |
751 | { | |
752 | #define VLAN_PRIORITY_MASK 0x7 | |
753 | ||
d64efd09 | 754 | if (tb[vlan_id_key]) { |
9399ae9a | 755 | key_val->vlan_id = |
d64efd09 | 756 | nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK; |
9399ae9a HHZ |
757 | key_mask->vlan_id = VLAN_VID_MASK; |
758 | } | |
d64efd09 | 759 | if (tb[vlan_prio_key]) { |
9399ae9a | 760 | key_val->vlan_priority = |
d64efd09 | 761 | nla_get_u8(tb[vlan_prio_key]) & |
9399ae9a HHZ |
762 | VLAN_PRIORITY_MASK; |
763 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
764 | } | |
aaab0834 JL |
765 | key_val->vlan_tpid = ethertype; |
766 | key_mask->vlan_tpid = cpu_to_be16(~0); | |
9399ae9a HHZ |
767 | } |
768 | ||
faa3ffce OG |
769 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
770 | u32 *dissector_key, u32 *dissector_mask, | |
771 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
772 | { | |
773 | if (flower_mask & flower_flag_bit) { | |
774 | *dissector_mask |= dissector_flag_bit; | |
775 | if (flower_key & flower_flag_bit) | |
776 | *dissector_key |= dissector_flag_bit; | |
777 | } | |
778 | } | |
779 | ||
d9724772 OG |
780 | static int fl_set_key_flags(struct nlattr **tb, |
781 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
782 | { |
783 | u32 key, mask; | |
784 | ||
d9724772 OG |
785 | /* mask is mandatory for flags */ |
786 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
787 | return -EINVAL; | |
faa3ffce OG |
788 | |
789 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 790 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
791 | |
792 | *flags_key = 0; | |
793 | *flags_mask = 0; | |
794 | ||
795 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
796 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
459d153d PJV |
797 | fl_set_key_flag(key, mask, flags_key, flags_mask, |
798 | TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, | |
799 | FLOW_DIS_FIRST_FRAG); | |
d9724772 OG |
800 | |
801 | return 0; | |
faa3ffce OG |
802 | } |
803 | ||
0e2c17b6 | 804 | static void fl_set_key_ip(struct nlattr **tb, bool encap, |
4d80cc0a OG |
805 | struct flow_dissector_key_ip *key, |
806 | struct flow_dissector_key_ip *mask) | |
807 | { | |
0e2c17b6 OG |
808 | int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS; |
809 | int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL; | |
810 | int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK; | |
811 | int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK; | |
4d80cc0a | 812 | |
0e2c17b6 OG |
813 | fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)); |
814 | fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)); | |
4d80cc0a OG |
815 | } |
816 | ||
0a6e7778 PJV |
817 | static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key, |
818 | int depth, int option_len, | |
819 | struct netlink_ext_ack *extack) | |
820 | { | |
821 | struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1]; | |
822 | struct nlattr *class = NULL, *type = NULL, *data = NULL; | |
823 | struct geneve_opt *opt; | |
824 | int err, data_len = 0; | |
825 | ||
826 | if (option_len > sizeof(struct geneve_opt)) | |
827 | data_len = option_len - sizeof(struct geneve_opt); | |
828 | ||
829 | opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len]; | |
830 | memset(opt, 0xff, option_len); | |
831 | opt->length = data_len / 4; | |
832 | opt->r1 = 0; | |
833 | opt->r2 = 0; | |
834 | opt->r3 = 0; | |
835 | ||
836 | /* If no mask has been prodived we assume an exact match. */ | |
837 | if (!depth) | |
838 | return sizeof(struct geneve_opt) + data_len; | |
839 | ||
840 | if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) { | |
841 | NL_SET_ERR_MSG(extack, "Non-geneve option type for mask"); | |
842 | return -EINVAL; | |
843 | } | |
844 | ||
845 | err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX, | |
846 | nla, geneve_opt_policy, extack); | |
847 | if (err < 0) | |
848 | return err; | |
849 | ||
850 | /* We are not allowed to omit any of CLASS, TYPE or DATA | |
851 | * fields from the key. | |
852 | */ | |
853 | if (!option_len && | |
854 | (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] || | |
855 | !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] || | |
856 | !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) { | |
857 | NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data"); | |
858 | return -EINVAL; | |
859 | } | |
860 | ||
861 | /* Omitting any of CLASS, TYPE or DATA fields is allowed | |
862 | * for the mask. | |
863 | */ | |
864 | if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) { | |
865 | int new_len = key->enc_opts.len; | |
866 | ||
867 | data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]; | |
868 | data_len = nla_len(data); | |
869 | if (data_len < 4) { | |
870 | NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long"); | |
871 | return -ERANGE; | |
872 | } | |
873 | if (data_len % 4) { | |
874 | NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long"); | |
875 | return -ERANGE; | |
876 | } | |
877 | ||
878 | new_len += sizeof(struct geneve_opt) + data_len; | |
879 | BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX); | |
880 | if (new_len > FLOW_DIS_TUN_OPTS_MAX) { | |
881 | NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size"); | |
882 | return -ERANGE; | |
883 | } | |
884 | opt->length = data_len / 4; | |
885 | memcpy(opt->opt_data, nla_data(data), data_len); | |
886 | } | |
887 | ||
888 | if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) { | |
889 | class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]; | |
890 | opt->opt_class = nla_get_be16(class); | |
891 | } | |
892 | ||
893 | if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) { | |
894 | type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]; | |
895 | opt->type = nla_get_u8(type); | |
896 | } | |
897 | ||
898 | return sizeof(struct geneve_opt) + data_len; | |
899 | } | |
900 | ||
901 | static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key, | |
902 | struct fl_flow_key *mask, | |
903 | struct netlink_ext_ack *extack) | |
904 | { | |
905 | const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL; | |
63c82997 JK |
906 | int err, option_len, key_depth, msk_depth = 0; |
907 | ||
908 | err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS], | |
909 | TCA_FLOWER_KEY_ENC_OPTS_MAX, | |
910 | enc_opts_policy, extack); | |
911 | if (err) | |
912 | return err; | |
0a6e7778 PJV |
913 | |
914 | nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]); | |
915 | ||
916 | if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) { | |
63c82997 JK |
917 | err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK], |
918 | TCA_FLOWER_KEY_ENC_OPTS_MAX, | |
919 | enc_opts_policy, extack); | |
920 | if (err) | |
921 | return err; | |
922 | ||
0a6e7778 PJV |
923 | nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]); |
924 | msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]); | |
925 | } | |
926 | ||
927 | nla_for_each_attr(nla_opt_key, nla_enc_key, | |
928 | nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) { | |
929 | switch (nla_type(nla_opt_key)) { | |
930 | case TCA_FLOWER_KEY_ENC_OPTS_GENEVE: | |
931 | option_len = 0; | |
932 | key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT; | |
933 | option_len = fl_set_geneve_opt(nla_opt_key, key, | |
934 | key_depth, option_len, | |
935 | extack); | |
936 | if (option_len < 0) | |
937 | return option_len; | |
938 | ||
939 | key->enc_opts.len += option_len; | |
940 | /* At the same time we need to parse through the mask | |
941 | * in order to verify exact and mask attribute lengths. | |
942 | */ | |
943 | mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT; | |
944 | option_len = fl_set_geneve_opt(nla_opt_msk, mask, | |
945 | msk_depth, option_len, | |
946 | extack); | |
947 | if (option_len < 0) | |
948 | return option_len; | |
949 | ||
950 | mask->enc_opts.len += option_len; | |
951 | if (key->enc_opts.len != mask->enc_opts.len) { | |
952 | NL_SET_ERR_MSG(extack, "Key and mask miss aligned"); | |
953 | return -EINVAL; | |
954 | } | |
955 | ||
956 | if (msk_depth) | |
957 | nla_opt_msk = nla_next(nla_opt_msk, &msk_depth); | |
958 | break; | |
959 | default: | |
960 | NL_SET_ERR_MSG(extack, "Unknown tunnel option type"); | |
961 | return -EINVAL; | |
962 | } | |
963 | } | |
964 | ||
965 | return 0; | |
966 | } | |
967 | ||
77b9900e | 968 | static int fl_set_key(struct net *net, struct nlattr **tb, |
1057c55f AA |
969 | struct fl_flow_key *key, struct fl_flow_key *mask, |
970 | struct netlink_ext_ack *extack) | |
77b9900e | 971 | { |
9399ae9a | 972 | __be16 ethertype; |
d9724772 | 973 | int ret = 0; |
dd3aa3b5 | 974 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 975 | if (tb[TCA_FLOWER_INDEV]) { |
1057c55f | 976 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack); |
77b9900e JP |
977 | if (err < 0) |
978 | return err; | |
979 | key->indev_ifindex = err; | |
980 | mask->indev_ifindex = 0xffffffff; | |
981 | } | |
dd3aa3b5 | 982 | #endif |
77b9900e JP |
983 | |
984 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
985 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
986 | sizeof(key->eth.dst)); | |
987 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
988 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
989 | sizeof(key->eth.src)); | |
66530bdf | 990 | |
0b498a52 | 991 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
992 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
993 | ||
aaab0834 | 994 | if (eth_type_vlan(ethertype)) { |
d64efd09 JL |
995 | fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID, |
996 | TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, | |
997 | &mask->vlan); | |
998 | ||
5e9a0fe4 JL |
999 | if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) { |
1000 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]); | |
1001 | if (eth_type_vlan(ethertype)) { | |
1002 | fl_set_key_vlan(tb, ethertype, | |
1003 | TCA_FLOWER_KEY_CVLAN_ID, | |
1004 | TCA_FLOWER_KEY_CVLAN_PRIO, | |
1005 | &key->cvlan, &mask->cvlan); | |
1006 | fl_set_key_val(tb, &key->basic.n_proto, | |
1007 | TCA_FLOWER_KEY_CVLAN_ETH_TYPE, | |
1008 | &mask->basic.n_proto, | |
1009 | TCA_FLOWER_UNSPEC, | |
1010 | sizeof(key->basic.n_proto)); | |
1011 | } else { | |
1012 | key->basic.n_proto = ethertype; | |
1013 | mask->basic.n_proto = cpu_to_be16(~0); | |
1014 | } | |
d64efd09 | 1015 | } |
0b498a52 AB |
1016 | } else { |
1017 | key->basic.n_proto = ethertype; | |
1018 | mask->basic.n_proto = cpu_to_be16(~0); | |
1019 | } | |
9399ae9a | 1020 | } |
66530bdf | 1021 | |
77b9900e JP |
1022 | if (key->basic.n_proto == htons(ETH_P_IP) || |
1023 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
1024 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
1025 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
1026 | sizeof(key->basic.ip_proto)); | |
0e2c17b6 | 1027 | fl_set_key_ip(tb, false, &key->ip, &mask->ip); |
77b9900e | 1028 | } |
66530bdf JHS |
1029 | |
1030 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
1031 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 1032 | mask->control.addr_type = ~0; |
77b9900e JP |
1033 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1034 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1035 | sizeof(key->ipv4.src)); | |
1036 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1037 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1038 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
1039 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
1040 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 1041 | mask->control.addr_type = ~0; |
77b9900e JP |
1042 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1043 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1044 | sizeof(key->ipv6.src)); | |
1045 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1046 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1047 | sizeof(key->ipv6.dst)); | |
1048 | } | |
66530bdf | 1049 | |
77b9900e JP |
1050 | if (key->basic.ip_proto == IPPROTO_TCP) { |
1051 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1052 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1053 | sizeof(key->tp.src)); |
1054 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1055 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 1056 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
1057 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
1058 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1059 | sizeof(key->tcp.flags)); | |
77b9900e JP |
1060 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
1061 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1062 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1063 | sizeof(key->tp.src)); |
1064 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1065 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 1066 | sizeof(key->tp.dst)); |
5976c5f4 SH |
1067 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
1068 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1069 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1070 | sizeof(key->tp.src)); | |
1071 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1072 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
1073 | sizeof(key->tp.dst)); | |
7b684884 SH |
1074 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
1075 | key->basic.ip_proto == IPPROTO_ICMP) { | |
1076 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
1077 | &mask->icmp.type, | |
1078 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1079 | sizeof(key->icmp.type)); | |
1080 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
1081 | &mask->icmp.code, | |
1082 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1083 | sizeof(key->icmp.code)); | |
1084 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1085 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
1086 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
1087 | &mask->icmp.type, | |
1088 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1089 | sizeof(key->icmp.type)); | |
040587af | 1090 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 1091 | &mask->icmp.code, |
040587af | 1092 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 1093 | sizeof(key->icmp.code)); |
a577d8f7 BL |
1094 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
1095 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
1096 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
1097 | if (ret) | |
1098 | return ret; | |
99d31326 SH |
1099 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
1100 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
1101 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
1102 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1103 | sizeof(key->arp.sip)); | |
1104 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
1105 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1106 | sizeof(key->arp.tip)); | |
1107 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
1108 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
1109 | sizeof(key->arp.op)); | |
1110 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1111 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1112 | sizeof(key->arp.sha)); | |
1113 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1114 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1115 | sizeof(key->arp.tha)); | |
77b9900e JP |
1116 | } |
1117 | ||
5c72299f AN |
1118 | if (key->basic.ip_proto == IPPROTO_TCP || |
1119 | key->basic.ip_proto == IPPROTO_UDP || | |
1120 | key->basic.ip_proto == IPPROTO_SCTP) { | |
1121 | ret = fl_set_key_port_range(tb, key, mask); | |
1122 | if (ret) | |
1123 | return ret; | |
1124 | } | |
1125 | ||
bc3103f1 AV |
1126 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
1127 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
1128 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 1129 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
1130 | fl_set_key_val(tb, &key->enc_ipv4.src, |
1131 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
1132 | &mask->enc_ipv4.src, | |
1133 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1134 | sizeof(key->enc_ipv4.src)); | |
1135 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
1136 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
1137 | &mask->enc_ipv4.dst, | |
1138 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1139 | sizeof(key->enc_ipv4.dst)); | |
1140 | } | |
1141 | ||
1142 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
1143 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
1144 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 1145 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
1146 | fl_set_key_val(tb, &key->enc_ipv6.src, |
1147 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
1148 | &mask->enc_ipv6.src, | |
1149 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1150 | sizeof(key->enc_ipv6.src)); | |
1151 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
1152 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1153 | &mask->enc_ipv6.dst, | |
1154 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1155 | sizeof(key->enc_ipv6.dst)); | |
1156 | } | |
1157 | ||
1158 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1159 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
1160 | sizeof(key->enc_key_id.keyid)); |
1161 | ||
f4d997fd HHZ |
1162 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
1163 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1164 | sizeof(key->enc_tp.src)); | |
1165 | ||
1166 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1167 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1168 | sizeof(key->enc_tp.dst)); | |
1169 | ||
0e2c17b6 OG |
1170 | fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip); |
1171 | ||
0a6e7778 PJV |
1172 | if (tb[TCA_FLOWER_KEY_ENC_OPTS]) { |
1173 | ret = fl_set_enc_opt(tb, key, mask, extack); | |
1174 | if (ret) | |
1175 | return ret; | |
1176 | } | |
1177 | ||
d9724772 OG |
1178 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
1179 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 1180 | |
d9724772 | 1181 | return ret; |
77b9900e JP |
1182 | } |
1183 | ||
05cd271f PB |
1184 | static void fl_mask_copy(struct fl_flow_mask *dst, |
1185 | struct fl_flow_mask *src) | |
77b9900e | 1186 | { |
05cd271f PB |
1187 | const void *psrc = fl_key_get_start(&src->key, src); |
1188 | void *pdst = fl_key_get_start(&dst->key, src); | |
77b9900e | 1189 | |
05cd271f PB |
1190 | memcpy(pdst, psrc, fl_mask_range(src)); |
1191 | dst->range = src->range; | |
77b9900e JP |
1192 | } |
1193 | ||
1194 | static const struct rhashtable_params fl_ht_params = { | |
1195 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
1196 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
1197 | .automatic_shrinking = true, | |
1198 | }; | |
1199 | ||
05cd271f | 1200 | static int fl_init_mask_hashtable(struct fl_flow_mask *mask) |
77b9900e | 1201 | { |
05cd271f PB |
1202 | mask->filter_ht_params = fl_ht_params; |
1203 | mask->filter_ht_params.key_len = fl_mask_range(mask); | |
1204 | mask->filter_ht_params.key_offset += mask->range.start; | |
77b9900e | 1205 | |
05cd271f | 1206 | return rhashtable_init(&mask->ht, &mask->filter_ht_params); |
77b9900e JP |
1207 | } |
1208 | ||
1209 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
cb205a81 | 1210 | #define FL_KEY_MEMBER_SIZE(member) FIELD_SIZEOF(struct fl_flow_key, member) |
77b9900e | 1211 | |
339ba878 HHZ |
1212 | #define FL_KEY_IS_MASKED(mask, member) \ |
1213 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
1214 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
1215 | |
1216 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
1217 | do { \ | |
1218 | keys[cnt].key_id = id; \ | |
1219 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
1220 | cnt++; \ | |
1221 | } while(0); | |
1222 | ||
339ba878 | 1223 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 1224 | do { \ |
339ba878 | 1225 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
1226 | FL_KEY_SET(keys, cnt, id, member); \ |
1227 | } while(0); | |
1228 | ||
33fb5cba JP |
1229 | static void fl_init_dissector(struct flow_dissector *dissector, |
1230 | struct fl_flow_key *mask) | |
77b9900e JP |
1231 | { |
1232 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
1233 | size_t cnt = 0; | |
1234 | ||
42aecaa9 | 1235 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 1236 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
33fb5cba | 1237 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
339ba878 | 1238 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); |
33fb5cba | 1239 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
339ba878 | 1240 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); |
33fb5cba | 1241 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
339ba878 | 1242 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); |
5c72299f AN |
1243 | if (FL_KEY_IS_MASKED(mask, tp) || |
1244 | FL_KEY_IS_MASKED(mask, tp_min) || FL_KEY_IS_MASKED(mask, tp_max)) | |
1245 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_PORTS, tp); | |
33fb5cba | 1246 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
4d80cc0a | 1247 | FLOW_DISSECTOR_KEY_IP, ip); |
33fb5cba | 1248 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
fdfc7dd6 | 1249 | FLOW_DISSECTOR_KEY_TCP, tcp); |
33fb5cba | 1250 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
7b684884 | 1251 | FLOW_DISSECTOR_KEY_ICMP, icmp); |
33fb5cba | 1252 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
99d31326 | 1253 | FLOW_DISSECTOR_KEY_ARP, arp); |
33fb5cba | 1254 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
a577d8f7 | 1255 | FLOW_DISSECTOR_KEY_MPLS, mpls); |
33fb5cba | 1256 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
9399ae9a | 1257 | FLOW_DISSECTOR_KEY_VLAN, vlan); |
33fb5cba | 1258 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
d64efd09 | 1259 | FLOW_DISSECTOR_KEY_CVLAN, cvlan); |
33fb5cba | 1260 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
519d1052 | 1261 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); |
33fb5cba | 1262 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
519d1052 | 1263 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); |
33fb5cba | 1264 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
519d1052 | 1265 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); |
33fb5cba JP |
1266 | if (FL_KEY_IS_MASKED(mask, enc_ipv4) || |
1267 | FL_KEY_IS_MASKED(mask, enc_ipv6)) | |
519d1052 HHZ |
1268 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, |
1269 | enc_control); | |
33fb5cba | 1270 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
f4d997fd | 1271 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); |
33fb5cba | 1272 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
0e2c17b6 | 1273 | FLOW_DISSECTOR_KEY_ENC_IP, enc_ip); |
0a6e7778 PJV |
1274 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
1275 | FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts); | |
77b9900e | 1276 | |
33fb5cba | 1277 | skb_flow_dissector_init(dissector, keys, cnt); |
05cd271f PB |
1278 | } |
1279 | ||
1280 | static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head, | |
1281 | struct fl_flow_mask *mask) | |
1282 | { | |
1283 | struct fl_flow_mask *newmask; | |
1284 | int err; | |
1285 | ||
1286 | newmask = kzalloc(sizeof(*newmask), GFP_KERNEL); | |
1287 | if (!newmask) | |
1288 | return ERR_PTR(-ENOMEM); | |
1289 | ||
1290 | fl_mask_copy(newmask, mask); | |
1291 | ||
5c72299f AN |
1292 | if ((newmask->key.tp_min.dst && newmask->key.tp_max.dst) || |
1293 | (newmask->key.tp_min.src && newmask->key.tp_max.src)) | |
1294 | newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE; | |
1295 | ||
05cd271f PB |
1296 | err = fl_init_mask_hashtable(newmask); |
1297 | if (err) | |
1298 | goto errout_free; | |
1299 | ||
33fb5cba | 1300 | fl_init_dissector(&newmask->dissector, &newmask->key); |
05cd271f PB |
1301 | |
1302 | INIT_LIST_HEAD_RCU(&newmask->filters); | |
1303 | ||
1304 | err = rhashtable_insert_fast(&head->ht, &newmask->ht_node, | |
1305 | mask_ht_params); | |
1306 | if (err) | |
1307 | goto errout_destroy; | |
1308 | ||
1309 | list_add_tail_rcu(&newmask->list, &head->masks); | |
1310 | ||
1311 | return newmask; | |
1312 | ||
1313 | errout_destroy: | |
1314 | rhashtable_destroy(&newmask->ht); | |
1315 | errout_free: | |
1316 | kfree(newmask); | |
1317 | ||
1318 | return ERR_PTR(err); | |
77b9900e JP |
1319 | } |
1320 | ||
1321 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
05cd271f PB |
1322 | struct cls_fl_filter *fnew, |
1323 | struct cls_fl_filter *fold, | |
77b9900e JP |
1324 | struct fl_flow_mask *mask) |
1325 | { | |
05cd271f | 1326 | struct fl_flow_mask *newmask; |
77b9900e | 1327 | |
05cd271f PB |
1328 | fnew->mask = rhashtable_lookup_fast(&head->ht, mask, mask_ht_params); |
1329 | if (!fnew->mask) { | |
1330 | if (fold) | |
77b9900e | 1331 | return -EINVAL; |
77b9900e | 1332 | |
05cd271f PB |
1333 | newmask = fl_create_new_mask(head, mask); |
1334 | if (IS_ERR(newmask)) | |
1335 | return PTR_ERR(newmask); | |
77b9900e | 1336 | |
05cd271f | 1337 | fnew->mask = newmask; |
f6521c58 | 1338 | } else if (fold && fold->mask != fnew->mask) { |
05cd271f PB |
1339 | return -EINVAL; |
1340 | } | |
77b9900e JP |
1341 | |
1342 | return 0; | |
1343 | } | |
1344 | ||
1345 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
1346 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
1347 | unsigned long base, struct nlattr **tb, | |
50a56190 | 1348 | struct nlattr *est, bool ovr, |
b95ec7eb | 1349 | struct fl_flow_tmplt *tmplt, |
50a56190 | 1350 | struct netlink_ext_ack *extack) |
77b9900e | 1351 | { |
77b9900e JP |
1352 | int err; |
1353 | ||
ec6743a1 VB |
1354 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, true, |
1355 | extack); | |
77b9900e JP |
1356 | if (err < 0) |
1357 | return err; | |
1358 | ||
1359 | if (tb[TCA_FLOWER_CLASSID]) { | |
1360 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
1361 | tcf_bind_filter(tp, &f->res, base); | |
1362 | } | |
1363 | ||
1057c55f | 1364 | err = fl_set_key(net, tb, &f->key, &mask->key, extack); |
77b9900e | 1365 | if (err) |
45507529 | 1366 | return err; |
77b9900e JP |
1367 | |
1368 | fl_mask_update_range(mask); | |
1369 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
1370 | ||
b95ec7eb JP |
1371 | if (!fl_mask_fits_tmplt(tmplt, mask)) { |
1372 | NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template"); | |
1373 | return -EINVAL; | |
1374 | } | |
1375 | ||
77b9900e | 1376 | return 0; |
77b9900e JP |
1377 | } |
1378 | ||
77b9900e JP |
1379 | static int fl_change(struct net *net, struct sk_buff *in_skb, |
1380 | struct tcf_proto *tp, unsigned long base, | |
1381 | u32 handle, struct nlattr **tca, | |
12db03b6 VB |
1382 | void **arg, bool ovr, bool rtnl_held, |
1383 | struct netlink_ext_ack *extack) | |
77b9900e | 1384 | { |
e474619a | 1385 | struct cls_fl_head *head = fl_head_dereference(tp); |
8113c095 | 1386 | struct cls_fl_filter *fold = *arg; |
77b9900e | 1387 | struct cls_fl_filter *fnew; |
2cddd201 | 1388 | struct fl_flow_mask *mask; |
39b7b6a6 | 1389 | struct nlattr **tb; |
77b9900e JP |
1390 | int err; |
1391 | ||
06177558 VB |
1392 | if (!tca[TCA_OPTIONS]) { |
1393 | err = -EINVAL; | |
1394 | goto errout_fold; | |
1395 | } | |
77b9900e | 1396 | |
2cddd201 | 1397 | mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL); |
06177558 VB |
1398 | if (!mask) { |
1399 | err = -ENOBUFS; | |
1400 | goto errout_fold; | |
1401 | } | |
39b7b6a6 | 1402 | |
2cddd201 IV |
1403 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
1404 | if (!tb) { | |
1405 | err = -ENOBUFS; | |
1406 | goto errout_mask_alloc; | |
1407 | } | |
1408 | ||
fceb6435 JB |
1409 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
1410 | fl_policy, NULL); | |
77b9900e | 1411 | if (err < 0) |
39b7b6a6 | 1412 | goto errout_tb; |
77b9900e | 1413 | |
39b7b6a6 AB |
1414 | if (fold && handle && fold->handle != handle) { |
1415 | err = -EINVAL; | |
1416 | goto errout_tb; | |
1417 | } | |
77b9900e JP |
1418 | |
1419 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
1420 | if (!fnew) { |
1421 | err = -ENOBUFS; | |
1422 | goto errout_tb; | |
1423 | } | |
06177558 | 1424 | refcount_set(&fnew->refcnt, 1); |
77b9900e | 1425 | |
14215108 | 1426 | err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0); |
b9a24bb7 WC |
1427 | if (err < 0) |
1428 | goto errout; | |
77b9900e | 1429 | |
e69985c6 AV |
1430 | if (tb[TCA_FLOWER_FLAGS]) { |
1431 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
1432 | ||
1433 | if (!tc_flags_valid(fnew->flags)) { | |
1434 | err = -EINVAL; | |
ecb3dea4 | 1435 | goto errout; |
e69985c6 AV |
1436 | } |
1437 | } | |
5b33f488 | 1438 | |
2cddd201 | 1439 | err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr, |
b95ec7eb | 1440 | tp->chain->tmplt_priv, extack); |
77b9900e | 1441 | if (err) |
ecb3dea4 | 1442 | goto errout; |
77b9900e | 1443 | |
2cddd201 | 1444 | err = fl_check_assign_mask(head, fnew, fold, mask); |
77b9900e | 1445 | if (err) |
ecb3dea4 VB |
1446 | goto errout; |
1447 | ||
79685219 | 1448 | if (!tc_skip_hw(fnew->flags)) { |
05cd271f | 1449 | err = fl_hw_replace_filter(tp, fnew, extack); |
79685219 | 1450 | if (err) |
620da486 | 1451 | goto errout_mask; |
79685219 | 1452 | } |
5b33f488 | 1453 | |
55593960 OG |
1454 | if (!tc_in_hw(fnew->flags)) |
1455 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
1456 | ||
06177558 | 1457 | refcount_inc(&fnew->refcnt); |
5b33f488 | 1458 | if (fold) { |
b2552b8c VB |
1459 | /* Fold filter was deleted concurrently. Retry lookup. */ |
1460 | if (fold->deleted) { | |
1461 | err = -EAGAIN; | |
1462 | goto errout_hw; | |
1463 | } | |
1464 | ||
620da486 VB |
1465 | fnew->handle = handle; |
1466 | ||
1467 | err = rhashtable_insert_fast(&fnew->mask->ht, &fnew->ht_node, | |
1468 | fnew->mask->filter_ht_params); | |
1469 | if (err) | |
1470 | goto errout_hw; | |
1471 | ||
599d2570 RD |
1472 | rhashtable_remove_fast(&fold->mask->ht, |
1473 | &fold->ht_node, | |
1474 | fold->mask->filter_ht_params); | |
234a4624 | 1475 | idr_replace(&head->handle_idr, fnew, fnew->handle); |
ff3532f2 | 1476 | list_replace_rcu(&fold->list, &fnew->list); |
b2552b8c | 1477 | fold->deleted = true; |
620da486 VB |
1478 | |
1479 | if (!tc_skip_hw(fold->flags)) | |
1480 | fl_hw_destroy_filter(tp, fold, NULL); | |
77b9900e | 1481 | tcf_unbind_filter(tp, &fold->res); |
0dadc117 | 1482 | tcf_exts_get_net(&fold->exts); |
06177558 VB |
1483 | /* Caller holds reference to fold, so refcnt is always > 0 |
1484 | * after this. | |
1485 | */ | |
1486 | refcount_dec(&fold->refcnt); | |
1487 | __fl_put(fold); | |
77b9900e | 1488 | } else { |
620da486 VB |
1489 | if (__fl_lookup(fnew->mask, &fnew->mkey)) { |
1490 | err = -EEXIST; | |
1491 | goto errout_hw; | |
1492 | } | |
1493 | ||
1494 | if (handle) { | |
1495 | /* user specifies a handle and it doesn't exist */ | |
1496 | err = idr_alloc_u32(&head->handle_idr, fnew, &handle, | |
1497 | handle, GFP_ATOMIC); | |
1498 | } else { | |
1499 | handle = 1; | |
1500 | err = idr_alloc_u32(&head->handle_idr, fnew, &handle, | |
1501 | INT_MAX, GFP_ATOMIC); | |
1502 | } | |
1503 | if (err) | |
1504 | goto errout_hw; | |
1505 | ||
1506 | fnew->handle = handle; | |
1507 | ||
1508 | err = rhashtable_insert_fast(&fnew->mask->ht, &fnew->ht_node, | |
1509 | fnew->mask->filter_ht_params); | |
1510 | if (err) | |
1511 | goto errout_idr; | |
1512 | ||
05cd271f | 1513 | list_add_tail_rcu(&fnew->list, &fnew->mask->filters); |
77b9900e JP |
1514 | } |
1515 | ||
620da486 VB |
1516 | *arg = fnew; |
1517 | ||
39b7b6a6 | 1518 | kfree(tb); |
2cddd201 | 1519 | kfree(mask); |
77b9900e JP |
1520 | return 0; |
1521 | ||
fe2502e4 | 1522 | errout_idr: |
620da486 VB |
1523 | idr_remove(&head->handle_idr, fnew->handle); |
1524 | errout_hw: | |
1525 | if (!tc_skip_hw(fnew->flags)) | |
1526 | fl_hw_destroy_filter(tp, fnew, NULL); | |
ecb3dea4 VB |
1527 | errout_mask: |
1528 | fl_mask_put(head, fnew->mask, false); | |
77b9900e | 1529 | errout: |
b9a24bb7 | 1530 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 1531 | kfree(fnew); |
39b7b6a6 AB |
1532 | errout_tb: |
1533 | kfree(tb); | |
2cddd201 IV |
1534 | errout_mask_alloc: |
1535 | kfree(mask); | |
06177558 VB |
1536 | errout_fold: |
1537 | if (fold) | |
1538 | __fl_put(fold); | |
77b9900e JP |
1539 | return err; |
1540 | } | |
1541 | ||
571acf21 | 1542 | static int fl_delete(struct tcf_proto *tp, void *arg, bool *last, |
12db03b6 | 1543 | bool rtnl_held, struct netlink_ext_ack *extack) |
77b9900e | 1544 | { |
e474619a | 1545 | struct cls_fl_head *head = fl_head_dereference(tp); |
8113c095 | 1546 | struct cls_fl_filter *f = arg; |
b2552b8c VB |
1547 | bool last_on_mask; |
1548 | int err = 0; | |
77b9900e | 1549 | |
b2552b8c | 1550 | err = __fl_delete(tp, f, &last_on_mask, extack); |
05cd271f | 1551 | *last = list_empty(&head->masks); |
06177558 VB |
1552 | __fl_put(f); |
1553 | ||
b2552b8c | 1554 | return err; |
77b9900e JP |
1555 | } |
1556 | ||
12db03b6 VB |
1557 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg, |
1558 | bool rtnl_held) | |
77b9900e | 1559 | { |
77b9900e | 1560 | struct cls_fl_filter *f; |
05cd271f | 1561 | |
01683a14 VB |
1562 | arg->count = arg->skip; |
1563 | ||
06177558 | 1564 | while ((f = fl_get_next_filter(tp, &arg->cookie)) != NULL) { |
01683a14 | 1565 | if (arg->fn(tp, f, arg) < 0) { |
06177558 | 1566 | __fl_put(f); |
01683a14 VB |
1567 | arg->stop = 1; |
1568 | break; | |
05cd271f | 1569 | } |
06177558 VB |
1570 | __fl_put(f); |
1571 | arg->cookie++; | |
01683a14 | 1572 | arg->count++; |
77b9900e JP |
1573 | } |
1574 | } | |
1575 | ||
31533cba JH |
1576 | static int fl_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb, |
1577 | void *cb_priv, struct netlink_ext_ack *extack) | |
1578 | { | |
e474619a | 1579 | struct cls_fl_head *head = fl_head_dereference(tp); |
31533cba JH |
1580 | struct tc_cls_flower_offload cls_flower = {}; |
1581 | struct tcf_block *block = tp->chain->block; | |
1582 | struct fl_flow_mask *mask; | |
1583 | struct cls_fl_filter *f; | |
1584 | int err; | |
1585 | ||
1586 | list_for_each_entry(mask, &head->masks, list) { | |
1587 | list_for_each_entry(f, &mask->filters, list) { | |
1588 | if (tc_skip_hw(f->flags)) | |
1589 | continue; | |
1590 | ||
e3ab786b PNA |
1591 | cls_flower.rule = |
1592 | flow_rule_alloc(tcf_exts_num_actions(&f->exts)); | |
8f256622 PNA |
1593 | if (!cls_flower.rule) |
1594 | return -ENOMEM; | |
1595 | ||
31533cba JH |
1596 | tc_cls_common_offload_init(&cls_flower.common, tp, |
1597 | f->flags, extack); | |
1598 | cls_flower.command = add ? | |
1599 | TC_CLSFLOWER_REPLACE : TC_CLSFLOWER_DESTROY; | |
1600 | cls_flower.cookie = (unsigned long)f; | |
8f256622 PNA |
1601 | cls_flower.rule->match.dissector = &mask->dissector; |
1602 | cls_flower.rule->match.mask = &mask->key; | |
1603 | cls_flower.rule->match.key = &f->mkey; | |
3a7b6861 PNA |
1604 | |
1605 | err = tc_setup_flow_action(&cls_flower.rule->action, | |
1606 | &f->exts); | |
1607 | if (err) { | |
1608 | kfree(cls_flower.rule); | |
1f15bb4f VB |
1609 | if (tc_skip_sw(f->flags)) { |
1610 | NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action"); | |
1611 | return err; | |
1612 | } | |
1613 | continue; | |
3a7b6861 PNA |
1614 | } |
1615 | ||
31533cba JH |
1616 | cls_flower.classid = f->res.classid; |
1617 | ||
1618 | err = cb(TC_SETUP_CLSFLOWER, &cls_flower, cb_priv); | |
8f256622 PNA |
1619 | kfree(cls_flower.rule); |
1620 | ||
31533cba JH |
1621 | if (err) { |
1622 | if (add && tc_skip_sw(f->flags)) | |
1623 | return err; | |
1624 | continue; | |
1625 | } | |
1626 | ||
1627 | tc_cls_offload_cnt_update(block, &f->in_hw_count, | |
1628 | &f->flags, add); | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | return 0; | |
1633 | } | |
1634 | ||
8f256622 PNA |
1635 | static int fl_hw_create_tmplt(struct tcf_chain *chain, |
1636 | struct fl_flow_tmplt *tmplt) | |
34738452 JP |
1637 | { |
1638 | struct tc_cls_flower_offload cls_flower = {}; | |
1639 | struct tcf_block *block = chain->block; | |
34738452 | 1640 | |
e3ab786b | 1641 | cls_flower.rule = flow_rule_alloc(0); |
8f256622 PNA |
1642 | if (!cls_flower.rule) |
1643 | return -ENOMEM; | |
1644 | ||
34738452 JP |
1645 | cls_flower.common.chain_index = chain->index; |
1646 | cls_flower.command = TC_CLSFLOWER_TMPLT_CREATE; | |
1647 | cls_flower.cookie = (unsigned long) tmplt; | |
8f256622 PNA |
1648 | cls_flower.rule->match.dissector = &tmplt->dissector; |
1649 | cls_flower.rule->match.mask = &tmplt->mask; | |
1650 | cls_flower.rule->match.key = &tmplt->dummy_key; | |
34738452 JP |
1651 | |
1652 | /* We don't care if driver (any of them) fails to handle this | |
1653 | * call. It serves just as a hint for it. | |
1654 | */ | |
aeb3fecd | 1655 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false); |
8f256622 PNA |
1656 | kfree(cls_flower.rule); |
1657 | ||
1658 | return 0; | |
34738452 JP |
1659 | } |
1660 | ||
1661 | static void fl_hw_destroy_tmplt(struct tcf_chain *chain, | |
1662 | struct fl_flow_tmplt *tmplt) | |
1663 | { | |
1664 | struct tc_cls_flower_offload cls_flower = {}; | |
1665 | struct tcf_block *block = chain->block; | |
1666 | ||
1667 | cls_flower.common.chain_index = chain->index; | |
1668 | cls_flower.command = TC_CLSFLOWER_TMPLT_DESTROY; | |
1669 | cls_flower.cookie = (unsigned long) tmplt; | |
1670 | ||
aeb3fecd | 1671 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false); |
34738452 JP |
1672 | } |
1673 | ||
b95ec7eb JP |
1674 | static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain, |
1675 | struct nlattr **tca, | |
1676 | struct netlink_ext_ack *extack) | |
1677 | { | |
1678 | struct fl_flow_tmplt *tmplt; | |
1679 | struct nlattr **tb; | |
1680 | int err; | |
1681 | ||
1682 | if (!tca[TCA_OPTIONS]) | |
1683 | return ERR_PTR(-EINVAL); | |
1684 | ||
1685 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); | |
1686 | if (!tb) | |
1687 | return ERR_PTR(-ENOBUFS); | |
1688 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], | |
1689 | fl_policy, NULL); | |
1690 | if (err) | |
1691 | goto errout_tb; | |
1692 | ||
1693 | tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL); | |
1cbc36a5 DC |
1694 | if (!tmplt) { |
1695 | err = -ENOMEM; | |
b95ec7eb | 1696 | goto errout_tb; |
1cbc36a5 | 1697 | } |
b95ec7eb JP |
1698 | tmplt->chain = chain; |
1699 | err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack); | |
1700 | if (err) | |
1701 | goto errout_tmplt; | |
b95ec7eb JP |
1702 | |
1703 | fl_init_dissector(&tmplt->dissector, &tmplt->mask); | |
1704 | ||
8f256622 PNA |
1705 | err = fl_hw_create_tmplt(chain, tmplt); |
1706 | if (err) | |
1707 | goto errout_tmplt; | |
34738452 | 1708 | |
8f256622 | 1709 | kfree(tb); |
b95ec7eb JP |
1710 | return tmplt; |
1711 | ||
1712 | errout_tmplt: | |
1713 | kfree(tmplt); | |
1714 | errout_tb: | |
1715 | kfree(tb); | |
1716 | return ERR_PTR(err); | |
1717 | } | |
1718 | ||
ec3ed293 VB |
1719 | static void fl_tmplt_destroy(void *tmplt_priv) |
1720 | { | |
1721 | struct fl_flow_tmplt *tmplt = tmplt_priv; | |
1722 | ||
95278dda CW |
1723 | fl_hw_destroy_tmplt(tmplt->chain, tmplt); |
1724 | kfree(tmplt); | |
ec3ed293 VB |
1725 | } |
1726 | ||
77b9900e JP |
1727 | static int fl_dump_key_val(struct sk_buff *skb, |
1728 | void *val, int val_type, | |
1729 | void *mask, int mask_type, int len) | |
1730 | { | |
1731 | int err; | |
1732 | ||
1733 | if (!memchr_inv(mask, 0, len)) | |
1734 | return 0; | |
1735 | err = nla_put(skb, val_type, len, val); | |
1736 | if (err) | |
1737 | return err; | |
1738 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1739 | err = nla_put(skb, mask_type, len, mask); | |
1740 | if (err) | |
1741 | return err; | |
1742 | } | |
1743 | return 0; | |
1744 | } | |
1745 | ||
5c72299f AN |
1746 | static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key, |
1747 | struct fl_flow_key *mask) | |
1748 | { | |
1749 | if (fl_dump_key_val(skb, &key->tp_min.dst, TCA_FLOWER_KEY_PORT_DST_MIN, | |
1750 | &mask->tp_min.dst, TCA_FLOWER_UNSPEC, | |
1751 | sizeof(key->tp_min.dst)) || | |
1752 | fl_dump_key_val(skb, &key->tp_max.dst, TCA_FLOWER_KEY_PORT_DST_MAX, | |
1753 | &mask->tp_max.dst, TCA_FLOWER_UNSPEC, | |
1754 | sizeof(key->tp_max.dst)) || | |
1755 | fl_dump_key_val(skb, &key->tp_min.src, TCA_FLOWER_KEY_PORT_SRC_MIN, | |
1756 | &mask->tp_min.src, TCA_FLOWER_UNSPEC, | |
1757 | sizeof(key->tp_min.src)) || | |
1758 | fl_dump_key_val(skb, &key->tp_max.src, TCA_FLOWER_KEY_PORT_SRC_MAX, | |
1759 | &mask->tp_max.src, TCA_FLOWER_UNSPEC, | |
1760 | sizeof(key->tp_max.src))) | |
1761 | return -1; | |
1762 | ||
1763 | return 0; | |
1764 | } | |
1765 | ||
a577d8f7 BL |
1766 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1767 | struct flow_dissector_key_mpls *mpls_key, | |
1768 | struct flow_dissector_key_mpls *mpls_mask) | |
1769 | { | |
1770 | int err; | |
1771 | ||
1772 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1773 | return 0; | |
1774 | if (mpls_mask->mpls_ttl) { | |
1775 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1776 | mpls_key->mpls_ttl); | |
1777 | if (err) | |
1778 | return err; | |
1779 | } | |
1780 | if (mpls_mask->mpls_tc) { | |
1781 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1782 | mpls_key->mpls_tc); | |
1783 | if (err) | |
1784 | return err; | |
1785 | } | |
1786 | if (mpls_mask->mpls_label) { | |
1787 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1788 | mpls_key->mpls_label); | |
1789 | if (err) | |
1790 | return err; | |
1791 | } | |
1792 | if (mpls_mask->mpls_bos) { | |
1793 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1794 | mpls_key->mpls_bos); | |
1795 | if (err) | |
1796 | return err; | |
1797 | } | |
1798 | return 0; | |
1799 | } | |
1800 | ||
0e2c17b6 | 1801 | static int fl_dump_key_ip(struct sk_buff *skb, bool encap, |
4d80cc0a OG |
1802 | struct flow_dissector_key_ip *key, |
1803 | struct flow_dissector_key_ip *mask) | |
1804 | { | |
0e2c17b6 OG |
1805 | int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS; |
1806 | int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL; | |
1807 | int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK; | |
1808 | int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK; | |
1809 | ||
1810 | if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) || | |
1811 | fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl))) | |
4d80cc0a OG |
1812 | return -1; |
1813 | ||
1814 | return 0; | |
1815 | } | |
1816 | ||
9399ae9a | 1817 | static int fl_dump_key_vlan(struct sk_buff *skb, |
d64efd09 | 1818 | int vlan_id_key, int vlan_prio_key, |
9399ae9a HHZ |
1819 | struct flow_dissector_key_vlan *vlan_key, |
1820 | struct flow_dissector_key_vlan *vlan_mask) | |
1821 | { | |
1822 | int err; | |
1823 | ||
1824 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1825 | return 0; | |
1826 | if (vlan_mask->vlan_id) { | |
d64efd09 | 1827 | err = nla_put_u16(skb, vlan_id_key, |
9399ae9a HHZ |
1828 | vlan_key->vlan_id); |
1829 | if (err) | |
1830 | return err; | |
1831 | } | |
1832 | if (vlan_mask->vlan_priority) { | |
d64efd09 | 1833 | err = nla_put_u8(skb, vlan_prio_key, |
9399ae9a HHZ |
1834 | vlan_key->vlan_priority); |
1835 | if (err) | |
1836 | return err; | |
1837 | } | |
1838 | return 0; | |
1839 | } | |
1840 | ||
faa3ffce OG |
1841 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1842 | u32 *flower_key, u32 *flower_mask, | |
1843 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1844 | { | |
1845 | if (dissector_mask & dissector_flag_bit) { | |
1846 | *flower_mask |= flower_flag_bit; | |
1847 | if (dissector_key & dissector_flag_bit) | |
1848 | *flower_key |= flower_flag_bit; | |
1849 | } | |
1850 | } | |
1851 | ||
1852 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1853 | { | |
1854 | u32 key, mask; | |
1855 | __be32 _key, _mask; | |
1856 | int err; | |
1857 | ||
1858 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1859 | return 0; | |
1860 | ||
1861 | key = 0; | |
1862 | mask = 0; | |
1863 | ||
1864 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1865 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
459d153d PJV |
1866 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, |
1867 | TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, | |
1868 | FLOW_DIS_FIRST_FRAG); | |
faa3ffce OG |
1869 | |
1870 | _key = cpu_to_be32(key); | |
1871 | _mask = cpu_to_be32(mask); | |
1872 | ||
1873 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1874 | if (err) | |
1875 | return err; | |
1876 | ||
1877 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1878 | } | |
1879 | ||
0a6e7778 PJV |
1880 | static int fl_dump_key_geneve_opt(struct sk_buff *skb, |
1881 | struct flow_dissector_key_enc_opts *enc_opts) | |
1882 | { | |
1883 | struct geneve_opt *opt; | |
1884 | struct nlattr *nest; | |
1885 | int opt_off = 0; | |
1886 | ||
1887 | nest = nla_nest_start(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE); | |
1888 | if (!nest) | |
1889 | goto nla_put_failure; | |
1890 | ||
1891 | while (enc_opts->len > opt_off) { | |
1892 | opt = (struct geneve_opt *)&enc_opts->data[opt_off]; | |
1893 | ||
1894 | if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS, | |
1895 | opt->opt_class)) | |
1896 | goto nla_put_failure; | |
1897 | if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE, | |
1898 | opt->type)) | |
1899 | goto nla_put_failure; | |
1900 | if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA, | |
1901 | opt->length * 4, opt->opt_data)) | |
1902 | goto nla_put_failure; | |
1903 | ||
1904 | opt_off += sizeof(struct geneve_opt) + opt->length * 4; | |
1905 | } | |
1906 | nla_nest_end(skb, nest); | |
1907 | return 0; | |
1908 | ||
1909 | nla_put_failure: | |
1910 | nla_nest_cancel(skb, nest); | |
1911 | return -EMSGSIZE; | |
1912 | } | |
1913 | ||
1914 | static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type, | |
1915 | struct flow_dissector_key_enc_opts *enc_opts) | |
1916 | { | |
1917 | struct nlattr *nest; | |
1918 | int err; | |
1919 | ||
1920 | if (!enc_opts->len) | |
1921 | return 0; | |
1922 | ||
1923 | nest = nla_nest_start(skb, enc_opt_type); | |
1924 | if (!nest) | |
1925 | goto nla_put_failure; | |
1926 | ||
1927 | switch (enc_opts->dst_opt_type) { | |
1928 | case TUNNEL_GENEVE_OPT: | |
1929 | err = fl_dump_key_geneve_opt(skb, enc_opts); | |
1930 | if (err) | |
1931 | goto nla_put_failure; | |
1932 | break; | |
1933 | default: | |
1934 | goto nla_put_failure; | |
1935 | } | |
1936 | nla_nest_end(skb, nest); | |
1937 | return 0; | |
1938 | ||
1939 | nla_put_failure: | |
1940 | nla_nest_cancel(skb, nest); | |
1941 | return -EMSGSIZE; | |
1942 | } | |
1943 | ||
1944 | static int fl_dump_key_enc_opt(struct sk_buff *skb, | |
1945 | struct flow_dissector_key_enc_opts *key_opts, | |
1946 | struct flow_dissector_key_enc_opts *msk_opts) | |
1947 | { | |
1948 | int err; | |
1949 | ||
1950 | err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts); | |
1951 | if (err) | |
1952 | return err; | |
1953 | ||
1954 | return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts); | |
1955 | } | |
1956 | ||
f5749081 JP |
1957 | static int fl_dump_key(struct sk_buff *skb, struct net *net, |
1958 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
77b9900e | 1959 | { |
77b9900e JP |
1960 | if (mask->indev_ifindex) { |
1961 | struct net_device *dev; | |
1962 | ||
1963 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1964 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1965 | goto nla_put_failure; | |
1966 | } | |
1967 | ||
1968 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
1969 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1970 | sizeof(key->eth.dst)) || | |
1971 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1972 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1973 | sizeof(key->eth.src)) || | |
1974 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1975 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1976 | sizeof(key->basic.n_proto))) | |
1977 | goto nla_put_failure; | |
9399ae9a | 1978 | |
a577d8f7 BL |
1979 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1980 | goto nla_put_failure; | |
1981 | ||
d64efd09 JL |
1982 | if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID, |
1983 | TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan)) | |
9399ae9a HHZ |
1984 | goto nla_put_failure; |
1985 | ||
d64efd09 JL |
1986 | if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID, |
1987 | TCA_FLOWER_KEY_CVLAN_PRIO, | |
1988 | &key->cvlan, &mask->cvlan) || | |
1989 | (mask->cvlan.vlan_tpid && | |
158abbf1 JL |
1990 | nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE, |
1991 | key->cvlan.vlan_tpid))) | |
d3069512 JL |
1992 | goto nla_put_failure; |
1993 | ||
5e9a0fe4 JL |
1994 | if (mask->basic.n_proto) { |
1995 | if (mask->cvlan.vlan_tpid) { | |
1996 | if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE, | |
1997 | key->basic.n_proto)) | |
1998 | goto nla_put_failure; | |
1999 | } else if (mask->vlan.vlan_tpid) { | |
2000 | if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
2001 | key->basic.n_proto)) | |
2002 | goto nla_put_failure; | |
2003 | } | |
d64efd09 JL |
2004 | } |
2005 | ||
77b9900e JP |
2006 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
2007 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 2008 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 2009 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a | 2010 | sizeof(key->basic.ip_proto)) || |
0e2c17b6 | 2011 | fl_dump_key_ip(skb, false, &key->ip, &mask->ip))) |
77b9900e JP |
2012 | goto nla_put_failure; |
2013 | ||
c3f83241 | 2014 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
2015 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
2016 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
2017 | sizeof(key->ipv4.src)) || | |
2018 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
2019 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
2020 | sizeof(key->ipv4.dst)))) | |
2021 | goto nla_put_failure; | |
c3f83241 | 2022 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
2023 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
2024 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
2025 | sizeof(key->ipv6.src)) || | |
2026 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
2027 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
2028 | sizeof(key->ipv6.dst)))) | |
2029 | goto nla_put_failure; | |
2030 | ||
2031 | if (key->basic.ip_proto == IPPROTO_TCP && | |
2032 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 2033 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
2034 | sizeof(key->tp.src)) || |
2035 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 2036 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
2037 | sizeof(key->tp.dst)) || |
2038 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
2039 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
2040 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
2041 | goto nla_put_failure; |
2042 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
2043 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 2044 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
2045 | sizeof(key->tp.src)) || |
2046 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 2047 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
2048 | sizeof(key->tp.dst)))) |
2049 | goto nla_put_failure; | |
2050 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
2051 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
2052 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
2053 | sizeof(key->tp.src)) || | |
2054 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
2055 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
2056 | sizeof(key->tp.dst)))) |
2057 | goto nla_put_failure; | |
7b684884 SH |
2058 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
2059 | key->basic.ip_proto == IPPROTO_ICMP && | |
2060 | (fl_dump_key_val(skb, &key->icmp.type, | |
2061 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
2062 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
2063 | sizeof(key->icmp.type)) || | |
2064 | fl_dump_key_val(skb, &key->icmp.code, | |
2065 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
2066 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
2067 | sizeof(key->icmp.code)))) | |
2068 | goto nla_put_failure; | |
2069 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
2070 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
2071 | (fl_dump_key_val(skb, &key->icmp.type, | |
2072 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
2073 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
2074 | sizeof(key->icmp.type)) || | |
2075 | fl_dump_key_val(skb, &key->icmp.code, | |
2076 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
2077 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
2078 | sizeof(key->icmp.code)))) | |
2079 | goto nla_put_failure; | |
99d31326 SH |
2080 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
2081 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
2082 | (fl_dump_key_val(skb, &key->arp.sip, | |
2083 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
2084 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
2085 | sizeof(key->arp.sip)) || | |
2086 | fl_dump_key_val(skb, &key->arp.tip, | |
2087 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
2088 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
2089 | sizeof(key->arp.tip)) || | |
2090 | fl_dump_key_val(skb, &key->arp.op, | |
2091 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
2092 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
2093 | sizeof(key->arp.op)) || | |
2094 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
2095 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
2096 | sizeof(key->arp.sha)) || | |
2097 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
2098 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
2099 | sizeof(key->arp.tha)))) | |
2100 | goto nla_put_failure; | |
77b9900e | 2101 | |
5c72299f AN |
2102 | if ((key->basic.ip_proto == IPPROTO_TCP || |
2103 | key->basic.ip_proto == IPPROTO_UDP || | |
2104 | key->basic.ip_proto == IPPROTO_SCTP) && | |
2105 | fl_dump_key_port_range(skb, key, mask)) | |
2106 | goto nla_put_failure; | |
2107 | ||
bc3103f1 AV |
2108 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
2109 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
2110 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
2111 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
2112 | sizeof(key->enc_ipv4.src)) || | |
2113 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
2114 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
2115 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
2116 | sizeof(key->enc_ipv4.dst)))) | |
2117 | goto nla_put_failure; | |
2118 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
2119 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
2120 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
2121 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
2122 | sizeof(key->enc_ipv6.src)) || | |
2123 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
2124 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
2125 | &mask->enc_ipv6.dst, | |
2126 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
2127 | sizeof(key->enc_ipv6.dst)))) | |
2128 | goto nla_put_failure; | |
2129 | ||
2130 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 2131 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
2132 | sizeof(key->enc_key_id)) || |
2133 | fl_dump_key_val(skb, &key->enc_tp.src, | |
2134 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
2135 | &mask->enc_tp.src, | |
2136 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
2137 | sizeof(key->enc_tp.src)) || | |
2138 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
2139 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
2140 | &mask->enc_tp.dst, | |
2141 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
0e2c17b6 | 2142 | sizeof(key->enc_tp.dst)) || |
0a6e7778 PJV |
2143 | fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) || |
2144 | fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts)) | |
bc3103f1 AV |
2145 | goto nla_put_failure; |
2146 | ||
faa3ffce OG |
2147 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
2148 | goto nla_put_failure; | |
2149 | ||
f5749081 JP |
2150 | return 0; |
2151 | ||
2152 | nla_put_failure: | |
2153 | return -EMSGSIZE; | |
2154 | } | |
2155 | ||
2156 | static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh, | |
12db03b6 | 2157 | struct sk_buff *skb, struct tcmsg *t, bool rtnl_held) |
f5749081 JP |
2158 | { |
2159 | struct cls_fl_filter *f = fh; | |
2160 | struct nlattr *nest; | |
2161 | struct fl_flow_key *key, *mask; | |
2162 | ||
2163 | if (!f) | |
2164 | return skb->len; | |
2165 | ||
2166 | t->tcm_handle = f->handle; | |
2167 | ||
2168 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
2169 | if (!nest) | |
2170 | goto nla_put_failure; | |
2171 | ||
2172 | if (f->res.classid && | |
2173 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
2174 | goto nla_put_failure; | |
2175 | ||
2176 | key = &f->key; | |
2177 | mask = &f->mask->key; | |
2178 | ||
2179 | if (fl_dump_key(skb, net, key, mask)) | |
2180 | goto nla_put_failure; | |
2181 | ||
2182 | if (!tc_skip_hw(f->flags)) | |
2183 | fl_hw_update_stats(tp, f); | |
2184 | ||
749e6720 OG |
2185 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
2186 | goto nla_put_failure; | |
e69985c6 | 2187 | |
86c55361 VB |
2188 | if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count)) |
2189 | goto nla_put_failure; | |
2190 | ||
77b9900e JP |
2191 | if (tcf_exts_dump(skb, &f->exts)) |
2192 | goto nla_put_failure; | |
2193 | ||
2194 | nla_nest_end(skb, nest); | |
2195 | ||
2196 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
2197 | goto nla_put_failure; | |
2198 | ||
2199 | return skb->len; | |
2200 | ||
2201 | nla_put_failure: | |
2202 | nla_nest_cancel(skb, nest); | |
2203 | return -1; | |
2204 | } | |
2205 | ||
b95ec7eb JP |
2206 | static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv) |
2207 | { | |
2208 | struct fl_flow_tmplt *tmplt = tmplt_priv; | |
2209 | struct fl_flow_key *key, *mask; | |
2210 | struct nlattr *nest; | |
2211 | ||
2212 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
2213 | if (!nest) | |
2214 | goto nla_put_failure; | |
2215 | ||
2216 | key = &tmplt->dummy_key; | |
2217 | mask = &tmplt->mask; | |
2218 | ||
2219 | if (fl_dump_key(skb, net, key, mask)) | |
2220 | goto nla_put_failure; | |
2221 | ||
2222 | nla_nest_end(skb, nest); | |
2223 | ||
2224 | return skb->len; | |
2225 | ||
2226 | nla_put_failure: | |
2227 | nla_nest_cancel(skb, nest); | |
2228 | return -EMSGSIZE; | |
2229 | } | |
2230 | ||
07d79fc7 CW |
2231 | static void fl_bind_class(void *fh, u32 classid, unsigned long cl) |
2232 | { | |
2233 | struct cls_fl_filter *f = fh; | |
2234 | ||
2235 | if (f && f->res.classid == classid) | |
2236 | f->res.class = cl; | |
2237 | } | |
2238 | ||
77b9900e JP |
2239 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { |
2240 | .kind = "flower", | |
2241 | .classify = fl_classify, | |
2242 | .init = fl_init, | |
2243 | .destroy = fl_destroy, | |
2244 | .get = fl_get, | |
06177558 | 2245 | .put = fl_put, |
77b9900e JP |
2246 | .change = fl_change, |
2247 | .delete = fl_delete, | |
2248 | .walk = fl_walk, | |
31533cba | 2249 | .reoffload = fl_reoffload, |
77b9900e | 2250 | .dump = fl_dump, |
07d79fc7 | 2251 | .bind_class = fl_bind_class, |
b95ec7eb JP |
2252 | .tmplt_create = fl_tmplt_create, |
2253 | .tmplt_destroy = fl_tmplt_destroy, | |
2254 | .tmplt_dump = fl_tmplt_dump, | |
77b9900e JP |
2255 | .owner = THIS_MODULE, |
2256 | }; | |
2257 | ||
2258 | static int __init cls_fl_init(void) | |
2259 | { | |
2260 | return register_tcf_proto_ops(&cls_fl_ops); | |
2261 | } | |
2262 | ||
2263 | static void __exit cls_fl_exit(void) | |
2264 | { | |
2265 | unregister_tcf_proto_ops(&cls_fl_ops); | |
2266 | } | |
2267 | ||
2268 | module_init(cls_fl_init); | |
2269 | module_exit(cls_fl_exit); | |
2270 | ||
2271 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
2272 | MODULE_DESCRIPTION("Flower classifier"); | |
2273 | MODULE_LICENSE("GPL v2"); |