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cls_flower: Add extack support for mpls options
[linux-block.git] / net / sched / cls_flower.c
CommitLineData
2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
77b9900e
JP		 2/*
3 * net/sched/cls_flower.c Flower classifier
4 *
5 * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us>
77b9900e
JP		 6 */
7
8#include <linux/kernel.h>
9#include <linux/init.h>
10#include <linux/module.h>
11#include <linux/rhashtable.h>
d9363774 12#include <linux/workqueue.h>
06177558 13#include <linux/refcount.h>
77b9900e
JP		 14
15#include <linux/if_ether.h>
16#include <linux/in6.h>
17#include <linux/ip.h>
a577d8f7 18#include <linux/mpls.h>
77b9900e
JP		 19
20#include <net/sch_generic.h>
21#include <net/pkt_cls.h>
22#include <net/ip.h>
23#include <net/flow_dissector.h>
0a6e7778 24#include <net/geneve.h>
d8f9dfae 25#include <net/vxlan.h>
79b1011c 26#include <net/erspan.h>
77b9900e 27
bc3103f1
AV		 28#include <net/dst.h>
29#include <net/dst_metadata.h>
30
e0ace68a
PB		 31#include <uapi/linux/netfilter/nf_conntrack_common.h>
32
77b9900e 33struct fl_flow_key {
8212ed77 34 struct flow_dissector_key_meta meta;
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;
8ffb055b
YK		 59 union {
60 struct flow_dissector_key_ports tp;
61 struct {
62 struct flow_dissector_key_ports tp_min;
63 struct flow_dissector_key_ports tp_max;
64 };
65 } tp_range;
e0ace68a 66 struct flow_dissector_key_ct ct;
77b9900e
JP		 67} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
68
69struct fl_flow_mask_range {
70 unsigned short int start;
71 unsigned short int end;
72};
73
74struct fl_flow_mask {
75 struct fl_flow_key key;
76 struct fl_flow_mask_range range;
5c72299f 77 u32 flags;
05cd271f
PB		 78 struct rhash_head ht_node;
79 struct rhashtable ht;
80 struct rhashtable_params filter_ht_params;
81 struct flow_dissector dissector;
82 struct list_head filters;
44a5cd43 83 struct rcu_work rwork;
05cd271f 84 struct list_head list;
f48ef4d5 85 refcount_t refcnt;
77b9900e
JP		 86};
87
b95ec7eb
JP		 88struct fl_flow_tmplt {
89 struct fl_flow_key dummy_key;
90 struct fl_flow_key mask;
91 struct flow_dissector dissector;
92 struct tcf_chain *chain;
93};
94
77b9900e
JP		 95struct cls_fl_head {
96 struct rhashtable ht;
259e60f9 97 spinlock_t masks_lock; /* Protect masks list */
05cd271f 98 struct list_head masks;
c049d56e 99 struct list_head hw_filters;
aaa908ff 100 struct rcu_work rwork;
c15ab236 101 struct idr handle_idr;
77b9900e
JP		 102};
103
104struct cls_fl_filter {
05cd271f 105 struct fl_flow_mask *mask;
77b9900e
JP		 106 struct rhash_head ht_node;
107 struct fl_flow_key mkey;
108 struct tcf_exts exts;
109 struct tcf_result res;
110 struct fl_flow_key key;
111 struct list_head list;
c049d56e 112 struct list_head hw_list;
77b9900e 113 u32 handle;
e69985c6 114 u32 flags;
86c55361 115 u32 in_hw_count;
aaa908ff 116 struct rcu_work rwork;
7091d8c7 117 struct net_device *hw_dev;
06177558
VB		 118 /* Flower classifier is unlocked, which means that its reference counter
119 * can be changed concurrently without any kind of external
120 * synchronization. Use atomic reference counter to be concurrency-safe.
121 */
122 refcount_t refcnt;
b2552b8c 123 bool deleted;
77b9900e
JP		 124};
125
05cd271f
PB		 126static const struct rhashtable_params mask_ht_params = {
127 .key_offset = offsetof(struct fl_flow_mask, key),
128 .key_len = sizeof(struct fl_flow_key),
129 .head_offset = offsetof(struct fl_flow_mask, ht_node),
130 .automatic_shrinking = true,
131};
132
77b9900e
JP		 133static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
134{
135 return mask->range.end - mask->range.start;
136}
137
138static void fl_mask_update_range(struct fl_flow_mask *mask)
139{
140 const u8 *bytes = (const u8 *) &mask->key;
141 size_t size = sizeof(mask->key);
05cd271f 142 size_t i, first = 0, last;
77b9900e 143
05cd271f
PB		 144 for (i = 0; i < size; i++) {
145 if (bytes[i]) {
146 first = i;
147 break;
148 }
149 }
150 last = first;
151 for (i = size - 1; i != first; i--) {
77b9900e 152 if (bytes[i]) {
77b9900e 153 last = i;
05cd271f 154 break;
77b9900e
JP		 155 }
156 }
157 mask->range.start = rounddown(first, sizeof(long));
158 mask->range.end = roundup(last + 1, sizeof(long));
159}
160
161static void *fl_key_get_start(struct fl_flow_key *key,
162 const struct fl_flow_mask *mask)
163{
164 return (u8 *) key + mask->range.start;
165}
166
167static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
168 struct fl_flow_mask *mask)
169{
170 const long *lkey = fl_key_get_start(key, mask);
171 const long *lmask = fl_key_get_start(&mask->key, mask);
172 long *lmkey = fl_key_get_start(mkey, mask);
173 int i;
174
175 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
176 *lmkey++ = *lkey++ & *lmask++;
177}
178
b95ec7eb
JP		 179static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
180 struct fl_flow_mask *mask)
181{
182 const long *lmask = fl_key_get_start(&mask->key, mask);
183 const long *ltmplt;
184 int i;
185
186 if (!tmplt)
187 return true;
188 ltmplt = fl_key_get_start(&tmplt->mask, mask);
189 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
190 if (~*ltmplt++ & *lmask++)
191 return false;
192 }
193 return true;
194}
195
77b9900e
JP		 196static void fl_clear_masked_range(struct fl_flow_key *key,
197 struct fl_flow_mask *mask)
198{
199 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
200}
201
5c72299f
AN		 202static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter,
203 struct fl_flow_key *key,
204 struct fl_flow_key *mkey)
205{
206 __be16 min_mask, max_mask, min_val, max_val;
207
8ffb055b
YK		 208 min_mask = htons(filter->mask->key.tp_range.tp_min.dst);
209 max_mask = htons(filter->mask->key.tp_range.tp_max.dst);
210 min_val = htons(filter->key.tp_range.tp_min.dst);
211 max_val = htons(filter->key.tp_range.tp_max.dst);
5c72299f
AN		 212
213 if (min_mask && max_mask) {
8ffb055b
YK		 214 if (htons(key->tp_range.tp.dst) < min_val ||
215 htons(key->tp_range.tp.dst) > max_val)
5c72299f
AN		 216 return false;
217
218 /* skb does not have min and max values */
8ffb055b
YK		 219 mkey->tp_range.tp_min.dst = filter->mkey.tp_range.tp_min.dst;
220 mkey->tp_range.tp_max.dst = filter->mkey.tp_range.tp_max.dst;
5c72299f
AN		 221 }
222 return true;
223}
224
225static bool fl_range_port_src_cmp(struct cls_fl_filter *filter,
226 struct fl_flow_key *key,
227 struct fl_flow_key *mkey)
228{
229 __be16 min_mask, max_mask, min_val, max_val;
230
8ffb055b
YK		 231 min_mask = htons(filter->mask->key.tp_range.tp_min.src);
232 max_mask = htons(filter->mask->key.tp_range.tp_max.src);
233 min_val = htons(filter->key.tp_range.tp_min.src);
234 max_val = htons(filter->key.tp_range.tp_max.src);
5c72299f
AN		 235
236 if (min_mask && max_mask) {
8ffb055b
YK		 237 if (htons(key->tp_range.tp.src) < min_val ||
238 htons(key->tp_range.tp.src) > max_val)
5c72299f
AN		 239 return false;
240
241 /* skb does not have min and max values */
8ffb055b
YK		 242 mkey->tp_range.tp_min.src = filter->mkey.tp_range.tp_min.src;
243 mkey->tp_range.tp_max.src = filter->mkey.tp_range.tp_max.src;
5c72299f
AN		 244 }
245 return true;
246}
247
248static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask,
249 struct fl_flow_key *mkey)
a3308d8f 250{
05cd271f
PB		 251 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
252 mask->filter_ht_params);
a3308d8f
PB		 253}
254
5c72299f
AN		 255static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask,
256 struct fl_flow_key *mkey,
257 struct fl_flow_key *key)
258{
259 struct cls_fl_filter *filter, *f;
260
261 list_for_each_entry_rcu(filter, &mask->filters, list) {
262 if (!fl_range_port_dst_cmp(filter, key, mkey))
263 continue;
264
265 if (!fl_range_port_src_cmp(filter, key, mkey))
266 continue;
267
268 f = __fl_lookup(mask, mkey);
269 if (f)
270 return f;
271 }
272 return NULL;
273}
274
275static struct cls_fl_filter *fl_lookup(struct fl_flow_mask *mask,
276 struct fl_flow_key *mkey,
277 struct fl_flow_key *key)
278{
279 if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE))
280 return fl_lookup_range(mask, mkey, key);
281
282 return __fl_lookup(mask, mkey);
283}
284
e0ace68a
PB		 285static u16 fl_ct_info_to_flower_map[] = {
286 [IP_CT_ESTABLISHED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
287 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
288 [IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
289 TCA_FLOWER_KEY_CT_FLAGS_RELATED,
290 [IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
291 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
292 [IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
293 TCA_FLOWER_KEY_CT_FLAGS_RELATED,
294 [IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
295 TCA_FLOWER_KEY_CT_FLAGS_NEW,
296};
297
77b9900e
JP		 298static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
299 struct tcf_result *res)
300{
301 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
77b9900e 302 struct fl_flow_key skb_mkey;
e0ace68a
PB		 303 struct fl_flow_key skb_key;
304 struct fl_flow_mask *mask;
305 struct cls_fl_filter *f;
77b9900e 306
05cd271f 307 list_for_each_entry_rcu(mask, &head->masks, list) {
8a9093c7 308 flow_dissector_init_keys(&skb_key.control, &skb_key.basic);
05cd271f 309 fl_clear_masked_range(&skb_key, mask);
bc3103f1 310
8212ed77 311 skb_flow_dissect_meta(skb, &mask->dissector, &skb_key);
05cd271f
PB		 312 /* skb_flow_dissect() does not set n_proto in case an unknown
313 * protocol, so do it rather here.
314 */
315 skb_key.basic.n_proto = skb->protocol;
316 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
e0ace68a
PB		 317 skb_flow_dissect_ct(skb, &mask->dissector, &skb_key,
318 fl_ct_info_to_flower_map,
319 ARRAY_SIZE(fl_ct_info_to_flower_map));
05cd271f 320 skb_flow_dissect(skb, &mask->dissector, &skb_key, 0);
77b9900e 321
05cd271f 322 fl_set_masked_key(&skb_mkey, &skb_key, mask);
77b9900e 323
5c72299f 324 f = fl_lookup(mask, &skb_mkey, &skb_key);
05cd271f
PB		 325 if (f && !tc_skip_sw(f->flags)) {
326 *res = f->res;
327 return tcf_exts_exec(skb, &f->exts, res);
328 }
77b9900e
JP		 329 }
330 return -1;
331}
332
333static int fl_init(struct tcf_proto *tp)
334{
335 struct cls_fl_head *head;
336
337 head = kzalloc(sizeof(*head), GFP_KERNEL);
338 if (!head)
339 return -ENOBUFS;
340
259e60f9 341 spin_lock_init(&head->masks_lock);
05cd271f 342 INIT_LIST_HEAD_RCU(&head->masks);
c049d56e 343 INIT_LIST_HEAD(&head->hw_filters);
77b9900e 344 rcu_assign_pointer(tp->root, head);
c15ab236 345 idr_init(&head->handle_idr);
77b9900e 346
05cd271f
PB		 347 return rhashtable_init(&head->ht, &mask_ht_params);
348}
349
99815f50 350static void fl_mask_free(struct fl_flow_mask *mask, bool mask_init_done)
44a5cd43 351{
99815f50
VB		 352 /* temporary masks don't have their filters list and ht initialized */
353 if (mask_init_done) {
354 WARN_ON(!list_empty(&mask->filters));
355 rhashtable_destroy(&mask->ht);
356 }
44a5cd43
PA		 357 kfree(mask);
358}
359
360static void fl_mask_free_work(struct work_struct *work)
361{
362 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
363 struct fl_flow_mask, rwork);
364
99815f50
VB		 365 fl_mask_free(mask, true);
366}
367
368static void fl_uninit_mask_free_work(struct work_struct *work)
369{
370 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
371 struct fl_flow_mask, rwork);
372
373 fl_mask_free(mask, false);
44a5cd43
PA		 374}
375
9994677c 376static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask)
05cd271f 377{
f48ef4d5 378 if (!refcount_dec_and_test(&mask->refcnt))
05cd271f
PB		 379 return false;
380
381 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
259e60f9
VB		 382
383 spin_lock(&head->masks_lock);
05cd271f 384 list_del_rcu(&mask->list);
259e60f9
VB		 385 spin_unlock(&head->masks_lock);
386
9994677c 387 tcf_queue_work(&mask->rwork, fl_mask_free_work);
05cd271f
PB		 388
389 return true;
77b9900e
JP		 390}
391
c049d56e
VB		 392static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp)
393{
394 /* Flower classifier only changes root pointer during init and destroy.
395 * Users must obtain reference to tcf_proto instance before calling its
396 * API, so tp->root pointer is protected from concurrent call to
397 * fl_destroy() by reference counting.
398 */
399 return rcu_dereference_raw(tp->root);
400}
401
0dadc117
CW		 402static void __fl_destroy_filter(struct cls_fl_filter *f)
403{
404 tcf_exts_destroy(&f->exts);
405 tcf_exts_put_net(&f->exts);
406 kfree(f);
407}
408
0552c8af 409static void fl_destroy_filter_work(struct work_struct *work)
77b9900e 410{
aaa908ff
CW		 411 struct cls_fl_filter *f = container_of(to_rcu_work(work),
412 struct cls_fl_filter, rwork);
77b9900e 413
0dadc117 414 __fl_destroy_filter(f);
0552c8af
CW		 415}
416
1b0f8037 417static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
c24e43d8 418 bool rtnl_held, struct netlink_ext_ack *extack)
5b33f488 419{
208c0f4b 420 struct tcf_block *block = tp->chain->block;
f9e30088 421 struct flow_cls_offload cls_flower = {};
5b33f488 422
d6787147 423 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
f9e30088 424 cls_flower.command = FLOW_CLS_DESTROY;
de4784ca 425 cls_flower.cookie = (unsigned long) f;
5b33f488 426
40119211 427 tc_setup_cb_destroy(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, false,
918190f5 428 &f->flags, &f->in_hw_count, rtnl_held);
c24e43d8 429
5b33f488
AV		 430}
431
e8eb36cd 432static int fl_hw_replace_filter(struct tcf_proto *tp,
c24e43d8 433 struct cls_fl_filter *f, bool rtnl_held,
41002038 434 struct netlink_ext_ack *extack)
5b33f488 435{
208c0f4b 436 struct tcf_block *block = tp->chain->block;
f9e30088 437 struct flow_cls_offload cls_flower = {};
717503b9 438 bool skip_sw = tc_skip_sw(f->flags);
c24e43d8
VB		 439 int err = 0;
440
e3ab786b 441 cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts));
918190f5
VB		 442 if (!cls_flower.rule)
443 return -ENOMEM;
8f256622 444
d6787147 445 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
f9e30088 446 cls_flower.command = FLOW_CLS_REPLACE;
de4784ca 447 cls_flower.cookie = (unsigned long) f;
8f256622
PNA		 448 cls_flower.rule->match.dissector = &f->mask->dissector;
449 cls_flower.rule->match.mask = &f->mask->key;
450 cls_flower.rule->match.key = &f->mkey;
384c181e 451 cls_flower.classid = f->res.classid;
5b33f488 452
b15e7a6e 453 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
3a7b6861
PNA		 454 if (err) {
455 kfree(cls_flower.rule);
918190f5 456 if (skip_sw) {
1f15bb4f 457 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
918190f5
VB		 458 return err;
459 }
460 return 0;
3a7b6861
PNA		 461 }
462
40119211 463 err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower,
918190f5 464 skip_sw, &f->flags, &f->in_hw_count, rtnl_held);
5a6ff4b1 465 tc_cleanup_flow_action(&cls_flower.rule->action);
8f256622
PNA		 466 kfree(cls_flower.rule);
467
40119211 468 if (err) {
918190f5
VB		 469 fl_hw_destroy_filter(tp, f, rtnl_held, NULL);
470 return err;
717503b9
JP		 471 }
472
918190f5
VB		 473 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
474 return -EINVAL;
c24e43d8 475
918190f5 476 return 0;
5b33f488
AV		 477}
478
c24e43d8
VB		 479static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f,
480 bool rtnl_held)
10cbc684 481{
208c0f4b 482 struct tcf_block *block = tp->chain->block;
f9e30088 483 struct flow_cls_offload cls_flower = {};
10cbc684 484
d6787147 485 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
f9e30088 486 cls_flower.command = FLOW_CLS_STATS;
de4784ca 487 cls_flower.cookie = (unsigned long) f;
384c181e 488 cls_flower.classid = f->res.classid;
10cbc684 489
918190f5
VB		 490 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false,
491 rtnl_held);
3b1903ef
PNA		 492
493 tcf_exts_stats_update(&f->exts, cls_flower.stats.bytes,
494 cls_flower.stats.pkts,
495 cls_flower.stats.lastused);
10cbc684
AV		 496}
497
06177558
VB		 498static void __fl_put(struct cls_fl_filter *f)
499{
500 if (!refcount_dec_and_test(&f->refcnt))
501 return;
502
503 if (tcf_exts_get_net(&f->exts))
504 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
505 else
506 __fl_destroy_filter(f);
507}
508
509static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle)
510{
511 struct cls_fl_filter *f;
512
513 rcu_read_lock();
514 f = idr_find(&head->handle_idr, handle);
515 if (f && !refcount_inc_not_zero(&f->refcnt))
516 f = NULL;
517 rcu_read_unlock();
518
519 return f;
520}
521
b2552b8c 522static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
c24e43d8
VB		 523 bool *last, bool rtnl_held,
524 struct netlink_ext_ack *extack)
13fa876e 525{
e474619a 526 struct cls_fl_head *head = fl_head_dereference(tp);
c15ab236 527
b2552b8c
VB		 528 *last = false;
529
3d81e711
VB		 530 spin_lock(&tp->lock);
531 if (f->deleted) {
532 spin_unlock(&tp->lock);
b2552b8c 533 return -ENOENT;
3d81e711 534 }
b2552b8c
VB		 535
536 f->deleted = true;
537 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
538 f->mask->filter_ht_params);
9c160941 539 idr_remove(&head->handle_idr, f->handle);
13fa876e 540 list_del_rcu(&f->list);
3d81e711
VB		 541 spin_unlock(&tp->lock);
542
9994677c 543 *last = fl_mask_put(head, f->mask);
79685219 544 if (!tc_skip_hw(f->flags))
c24e43d8 545 fl_hw_destroy_filter(tp, f, rtnl_held, extack);
13fa876e 546 tcf_unbind_filter(tp, &f->res);
06177558 547 __fl_put(f);
05cd271f 548
b2552b8c 549 return 0;
13fa876e
RD		 550}
551
d9363774
DB		 552static void fl_destroy_sleepable(struct work_struct *work)
553{
aaa908ff
CW		 554 struct cls_fl_head *head = container_of(to_rcu_work(work),
555 struct cls_fl_head,
556 rwork);
de9dc650
PB		 557
558 rhashtable_destroy(&head->ht);
d9363774
DB		 559 kfree(head);
560 module_put(THIS_MODULE);
561}
562
12db03b6
VB		 563static void fl_destroy(struct tcf_proto *tp, bool rtnl_held,
564 struct netlink_ext_ack *extack)
77b9900e 565{
e474619a 566 struct cls_fl_head *head = fl_head_dereference(tp);
05cd271f 567 struct fl_flow_mask *mask, *next_mask;
77b9900e 568 struct cls_fl_filter *f, *next;
b2552b8c 569 bool last;
77b9900e 570
05cd271f
PB		 571 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
572 list_for_each_entry_safe(f, next, &mask->filters, list) {
c24e43d8 573 __fl_delete(tp, f, &last, rtnl_held, extack);
b2552b8c 574 if (last)
05cd271f
PB		 575 break;
576 }
577 }
c15ab236 578 idr_destroy(&head->handle_idr);
d9363774
DB		 579
580 __module_get(THIS_MODULE);
aaa908ff 581 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
77b9900e
JP		 582}
583
06177558
VB		 584static void fl_put(struct tcf_proto *tp, void *arg)
585{
586 struct cls_fl_filter *f = arg;
587
588 __fl_put(f);
589}
590
8113c095 591static void *fl_get(struct tcf_proto *tp, u32 handle)
77b9900e 592{
e474619a 593 struct cls_fl_head *head = fl_head_dereference(tp);
77b9900e 594
06177558 595 return __fl_get(head, handle);
77b9900e
JP		 596}
597
598static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
599 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
600 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
601 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
602 .len = IFNAMSIZ },
603 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
604 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
605 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
606 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
607 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
608 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
609 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
610 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
611 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
612 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
613 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
614 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
615 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
616 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
617 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
618 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
b175c3a4
JHS		 619 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
620 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
9399ae9a
HHZ		 621 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
622 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
623 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
bc3103f1
AV		 624 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
625 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
626 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
627 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
628 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
629 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
630 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
631 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
632 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
aa72d708
OG		 633 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
634 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
635 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
636 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
5976c5f4
SH		 637 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
638 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
639 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
640 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
f4d997fd
HHZ		 641 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
642 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
643 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
644 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
faa3ffce
OG		 645 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
646 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
7b684884
SH		 647 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
648 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
649 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
650 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
651 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
652 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
653 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
654 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
99d31326
SH		 655 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
656 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
657 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
658 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
659 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
660 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
661 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
662 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
663 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
664 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
a577d8f7
BL		 665 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
666 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
667 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
668 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
fdfc7dd6
JP		 669 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
670 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
4d80cc0a
OG		 671 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
672 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
673 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
674 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
d64efd09
JL		 675 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
676 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
677 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
0e2c17b6
OG		 678 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
679 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
680 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
681 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
0a6e7778
PJV		 682 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
683 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
e0ace68a
PB		 684 [TCA_FLOWER_KEY_CT_STATE] = { .type = NLA_U16 },
685 [TCA_FLOWER_KEY_CT_STATE_MASK] = { .type = NLA_U16 },
686 [TCA_FLOWER_KEY_CT_ZONE] = { .type = NLA_U16 },
687 [TCA_FLOWER_KEY_CT_ZONE_MASK] = { .type = NLA_U16 },
688 [TCA_FLOWER_KEY_CT_MARK] = { .type = NLA_U32 },
689 [TCA_FLOWER_KEY_CT_MARK_MASK] = { .type = NLA_U32 },
690 [TCA_FLOWER_KEY_CT_LABELS] = { .type = NLA_BINARY,
691 .len = 128 / BITS_PER_BYTE },
692 [TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
693 .len = 128 / BITS_PER_BYTE },
e2debf08 694 [TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
0a6e7778
PJV		 695};
696
697static const struct nla_policy
698enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
d8f9dfae
XL		 699 [TCA_FLOWER_KEY_ENC_OPTS_UNSPEC] = {
700 .strict_start_type = TCA_FLOWER_KEY_ENC_OPTS_VXLAN },
0a6e7778 701 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
d8f9dfae 702 [TCA_FLOWER_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED },
79b1011c 703 [TCA_FLOWER_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED },
0a6e7778
PJV		 704};
705
706static const struct nla_policy
707geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
708 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
709 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
710 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
711 .len = 128 },
77b9900e
JP		 712};
713
d8f9dfae
XL		 714static const struct nla_policy
715vxlan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1] = {
716 [TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 },
717};
718
79b1011c
XL		 719static const struct nla_policy
720erspan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1] = {
721 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 },
722 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 },
723 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 },
724 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 },
725};
726
77b9900e
JP		 727static void fl_set_key_val(struct nlattr **tb,
728 void *val, int val_type,
729 void *mask, int mask_type, int len)
730{
731 if (!tb[val_type])
732 return;
e0ace68a 733 nla_memcpy(val, tb[val_type], len);
77b9900e
JP		 734 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
735 memset(mask, 0xff, len);
736 else
e0ace68a 737 nla_memcpy(mask, tb[mask_type], len);
77b9900e
JP		 738}
739
5c72299f
AN		 740static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
741 struct fl_flow_key *mask)
742{
8ffb055b
YK		 743 fl_set_key_val(tb, &key->tp_range.tp_min.dst,
744 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_range.tp_min.dst,
745 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.dst));
746 fl_set_key_val(tb, &key->tp_range.tp_max.dst,
747 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_range.tp_max.dst,
748 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.dst));
749 fl_set_key_val(tb, &key->tp_range.tp_min.src,
750 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_range.tp_min.src,
751 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.src));
752 fl_set_key_val(tb, &key->tp_range.tp_max.src,
753 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_range.tp_max.src,
754 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.src));
755
756 if ((mask->tp_range.tp_min.dst && mask->tp_range.tp_max.dst &&
757 htons(key->tp_range.tp_max.dst) <=
758 htons(key->tp_range.tp_min.dst)) ||
759 (mask->tp_range.tp_min.src && mask->tp_range.tp_max.src &&
760 htons(key->tp_range.tp_max.src) <=
761 htons(key->tp_range.tp_min.src)))
5c72299f
AN		 762 return -EINVAL;
763
764 return 0;
765}
766
1a7fca63
BL		 767static int fl_set_key_mpls(struct nlattr **tb,
768 struct flow_dissector_key_mpls *key_val,
442f730e
GN		 769 struct flow_dissector_key_mpls *key_mask,
770 struct netlink_ext_ack *extack)
a577d8f7
BL		 771{
772 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
773 key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
774 key_mask->mpls_ttl = MPLS_TTL_MASK;
775 }
776 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
1a7fca63
BL		 777 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
778
442f730e
GN		 779 if (bos & ~MPLS_BOS_MASK) {
780 NL_SET_ERR_MSG_ATTR(extack,
781 tb[TCA_FLOWER_KEY_MPLS_BOS],
782 "Bottom Of Stack (BOS) must be 0 or 1");
1a7fca63 783 return -EINVAL;
442f730e 784 }
1a7fca63 785 key_val->mpls_bos = bos;
a577d8f7
BL		 786 key_mask->mpls_bos = MPLS_BOS_MASK;
787 }
788 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
1a7fca63
BL		 789 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
790
442f730e
GN		 791 if (tc & ~MPLS_TC_MASK) {
792 NL_SET_ERR_MSG_ATTR(extack,
793 tb[TCA_FLOWER_KEY_MPLS_TC],
794 "Traffic Class (TC) must be between 0 and 7");
1a7fca63 795 return -EINVAL;
442f730e 796 }
1a7fca63 797 key_val->mpls_tc = tc;
a577d8f7
BL		 798 key_mask->mpls_tc = MPLS_TC_MASK;
799 }
800 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
1a7fca63
BL		 801 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
802
442f730e
GN		 803 if (label & ~MPLS_LABEL_MASK) {
804 NL_SET_ERR_MSG_ATTR(extack,
805 tb[TCA_FLOWER_KEY_MPLS_LABEL],
806 "Label must be between 0 and 1048575");
1a7fca63 807 return -EINVAL;
442f730e 808 }
1a7fca63 809 key_val->mpls_label = label;
a577d8f7
BL		 810 key_mask->mpls_label = MPLS_LABEL_MASK;
811 }
1a7fca63 812 return 0;
a577d8f7
BL		 813}
814
9399ae9a 815static void fl_set_key_vlan(struct nlattr **tb,
aaab0834 816 __be16 ethertype,
d64efd09 817 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 818 struct flow_dissector_key_vlan *key_val,
819 struct flow_dissector_key_vlan *key_mask)
820{
821#define VLAN_PRIORITY_MASK 0x7
822
d64efd09 823 if (tb[vlan_id_key]) {
9399ae9a 824 key_val->vlan_id =
d64efd09 825 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
9399ae9a
HHZ		 826 key_mask->vlan_id = VLAN_VID_MASK;
827 }
d64efd09 828 if (tb[vlan_prio_key]) {
9399ae9a 829 key_val->vlan_priority =
d64efd09 830 nla_get_u8(tb[vlan_prio_key]) &
9399ae9a
HHZ		 831 VLAN_PRIORITY_MASK;
832 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
833 }
aaab0834
JL		 834 key_val->vlan_tpid = ethertype;
835 key_mask->vlan_tpid = cpu_to_be16(~0);
9399ae9a
HHZ		 836}
837
faa3ffce
OG		 838static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
839 u32 *dissector_key, u32 *dissector_mask,
840 u32 flower_flag_bit, u32 dissector_flag_bit)
841{
842 if (flower_mask & flower_flag_bit) {
843 *dissector_mask |= dissector_flag_bit;
844 if (flower_key & flower_flag_bit)
845 *dissector_key |= dissector_flag_bit;
846 }
847}
848
d9724772
OG		 849static int fl_set_key_flags(struct nlattr **tb,
850 u32 *flags_key, u32 *flags_mask)
faa3ffce
OG		 851{
852 u32 key, mask;
853
d9724772
OG		 854 /* mask is mandatory for flags */
855 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
856 return -EINVAL;
faa3ffce
OG		 857
858 key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
d9724772 859 mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
faa3ffce
OG		 860
861 *flags_key = 0;
862 *flags_mask = 0;
863
864 fl_set_key_flag(key, mask, flags_key, flags_mask,
865 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 866 fl_set_key_flag(key, mask, flags_key, flags_mask,
867 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
868 FLOW_DIS_FIRST_FRAG);
d9724772
OG		 869
870 return 0;
faa3ffce
OG		 871}
872
0e2c17b6 873static void fl_set_key_ip(struct nlattr **tb, bool encap,
4d80cc0a
OG		 874 struct flow_dissector_key_ip *key,
875 struct flow_dissector_key_ip *mask)
876{
0e2c17b6
OG		 877 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
878 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
879 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
880 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
4d80cc0a 881
0e2c17b6
OG		 882 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
883 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
4d80cc0a
OG		 884}
885
0a6e7778
PJV		 886static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
887 int depth, int option_len,
888 struct netlink_ext_ack *extack)
889{
890 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
891 struct nlattr *class = NULL, *type = NULL, *data = NULL;
892 struct geneve_opt *opt;
893 int err, data_len = 0;
894
895 if (option_len > sizeof(struct geneve_opt))
896 data_len = option_len - sizeof(struct geneve_opt);
897
898 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
899 memset(opt, 0xff, option_len);
900 opt->length = data_len / 4;
901 opt->r1 = 0;
902 opt->r2 = 0;
903 opt->r3 = 0;
904
905 /* If no mask has been prodived we assume an exact match. */
906 if (!depth)
907 return sizeof(struct geneve_opt) + data_len;
908
909 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
910 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
911 return -EINVAL;
912 }
913
8cb08174
JB		 914 err = nla_parse_nested_deprecated(tb,
915 TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
916 nla, geneve_opt_policy, extack);
0a6e7778
PJV		 917 if (err < 0)
918 return err;
919
920 /* We are not allowed to omit any of CLASS, TYPE or DATA
921 * fields from the key.
922 */
923 if (!option_len &&
924 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
925 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
926 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
927 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
928 return -EINVAL;
929 }
930
931 /* Omitting any of CLASS, TYPE or DATA fields is allowed
932 * for the mask.
933 */
934 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
935 int new_len = key->enc_opts.len;
936
937 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
938 data_len = nla_len(data);
939 if (data_len < 4) {
940 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
941 return -ERANGE;
942 }
943 if (data_len % 4) {
944 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
945 return -ERANGE;
946 }
947
948 new_len += sizeof(struct geneve_opt) + data_len;
949 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
950 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
951 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
952 return -ERANGE;
953 }
954 opt->length = data_len / 4;
955 memcpy(opt->opt_data, nla_data(data), data_len);
956 }
957
958 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
959 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
960 opt->opt_class = nla_get_be16(class);
961 }
962
963 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
964 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
965 opt->type = nla_get_u8(type);
966 }
967
968 return sizeof(struct geneve_opt) + data_len;
969}
970
d8f9dfae
XL		 971static int fl_set_vxlan_opt(const struct nlattr *nla, struct fl_flow_key *key,
972 int depth, int option_len,
973 struct netlink_ext_ack *extack)
974{
975 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1];
976 struct vxlan_metadata *md;
977 int err;
978
979 md = (struct vxlan_metadata *)&key->enc_opts.data[key->enc_opts.len];
980 memset(md, 0xff, sizeof(*md));
981
982 if (!depth)
983 return sizeof(*md);
984
985 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_VXLAN) {
986 NL_SET_ERR_MSG(extack, "Non-vxlan option type for mask");
987 return -EINVAL;
988 }
989
990 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX, nla,
991 vxlan_opt_policy, extack);
992 if (err < 0)
993 return err;
994
995 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
996 NL_SET_ERR_MSG(extack, "Missing tunnel key vxlan option gbp");
997 return -EINVAL;
998 }
999
1000 if (tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP])
1001 md->gbp = nla_get_u32(tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]);
1002
1003 return sizeof(*md);
1004}
1005
79b1011c
XL		 1006static int fl_set_erspan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1007 int depth, int option_len,
1008 struct netlink_ext_ack *extack)
1009{
1010 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1];
1011 struct erspan_metadata *md;
1012 int err;
1013
1014 md = (struct erspan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1015 memset(md, 0xff, sizeof(*md));
1016 md->version = 1;
1017
1018 if (!depth)
1019 return sizeof(*md);
1020
1021 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_ERSPAN) {
1022 NL_SET_ERR_MSG(extack, "Non-erspan option type for mask");
1023 return -EINVAL;
1024 }
1025
1026 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX, nla,
1027 erspan_opt_policy, extack);
1028 if (err < 0)
1029 return err;
1030
1031 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) {
1032 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver");
1033 return -EINVAL;
1034 }
1035
1036 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER])
1037 md->version = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]);
1038
1039 if (md->version == 1) {
1040 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1041 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index");
1042 return -EINVAL;
1043 }
1044 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1045 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX];
1046 md->u.index = nla_get_be32(nla);
1047 }
1048 } else if (md->version == 2) {
1049 if (!option_len && (!tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] ||
1050 !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID])) {
1051 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid");
1052 return -EINVAL;
1053 }
1054 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]) {
1055 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR];
1056 md->u.md2.dir = nla_get_u8(nla);
1057 }
1058 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]) {
1059 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID];
1060 set_hwid(&md->u.md2, nla_get_u8(nla));
1061 }
1062 } else {
1063 NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect");
1064 return -EINVAL;
1065 }
1066
1067 return sizeof(*md);
1068}
1069
0a6e7778
PJV		 1070static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
1071 struct fl_flow_key *mask,
1072 struct netlink_ext_ack *extack)
1073{
1074 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
63c82997
JK		 1075 int err, option_len, key_depth, msk_depth = 0;
1076
8cb08174
JB		 1077 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS],
1078 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1079 enc_opts_policy, extack);
63c82997
JK		 1080 if (err)
1081 return err;
0a6e7778
PJV		 1082
1083 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
1084
1085 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
8cb08174
JB		 1086 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
1087 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1088 enc_opts_policy, extack);
63c82997
JK		 1089 if (err)
1090 return err;
1091
0a6e7778
PJV		 1092 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1093 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1094 }
1095
1096 nla_for_each_attr(nla_opt_key, nla_enc_key,
1097 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
1098 switch (nla_type(nla_opt_key)) {
1099 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
d8f9dfae
XL		 1100 if (key->enc_opts.dst_opt_type &&
1101 key->enc_opts.dst_opt_type != TUNNEL_GENEVE_OPT) {
1102 NL_SET_ERR_MSG(extack, "Duplicate type for geneve options");
1103 return -EINVAL;
1104 }
0a6e7778
PJV		 1105 option_len = 0;
1106 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1107 option_len = fl_set_geneve_opt(nla_opt_key, key,
1108 key_depth, option_len,
1109 extack);
1110 if (option_len < 0)
1111 return option_len;
1112
1113 key->enc_opts.len += option_len;
1114 /* At the same time we need to parse through the mask
1115 * in order to verify exact and mask attribute lengths.
1116 */
1117 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1118 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
1119 msk_depth, option_len,
1120 extack);
1121 if (option_len < 0)
1122 return option_len;
1123
1124 mask->enc_opts.len += option_len;
1125 if (key->enc_opts.len != mask->enc_opts.len) {
1126 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1127 return -EINVAL;
1128 }
1129
d8f9dfae
XL		 1130 if (msk_depth)
1131 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
1132 break;
1133 case TCA_FLOWER_KEY_ENC_OPTS_VXLAN:
1134 if (key->enc_opts.dst_opt_type) {
1135 NL_SET_ERR_MSG(extack, "Duplicate type for vxlan options");
1136 return -EINVAL;
1137 }
1138 option_len = 0;
1139 key->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1140 option_len = fl_set_vxlan_opt(nla_opt_key, key,
1141 key_depth, option_len,
1142 extack);
1143 if (option_len < 0)
1144 return option_len;
1145
1146 key->enc_opts.len += option_len;
1147 /* At the same time we need to parse through the mask
1148 * in order to verify exact and mask attribute lengths.
1149 */
1150 mask->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1151 option_len = fl_set_vxlan_opt(nla_opt_msk, mask,
1152 msk_depth, option_len,
1153 extack);
1154 if (option_len < 0)
1155 return option_len;
1156
1157 mask->enc_opts.len += option_len;
1158 if (key->enc_opts.len != mask->enc_opts.len) {
1159 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1160 return -EINVAL;
1161 }
1162
79b1011c
XL		 1163 if (msk_depth)
1164 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
1165 break;
1166 case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN:
1167 if (key->enc_opts.dst_opt_type) {
1168 NL_SET_ERR_MSG(extack, "Duplicate type for erspan options");
1169 return -EINVAL;
1170 }
1171 option_len = 0;
1172 key->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1173 option_len = fl_set_erspan_opt(nla_opt_key, key,
1174 key_depth, option_len,
1175 extack);
1176 if (option_len < 0)
1177 return option_len;
1178
1179 key->enc_opts.len += option_len;
1180 /* At the same time we need to parse through the mask
1181 * in order to verify exact and mask attribute lengths.
1182 */
1183 mask->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1184 option_len = fl_set_erspan_opt(nla_opt_msk, mask,
1185 msk_depth, option_len,
1186 extack);
1187 if (option_len < 0)
1188 return option_len;
1189
1190 mask->enc_opts.len += option_len;
1191 if (key->enc_opts.len != mask->enc_opts.len) {
1192 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1193 return -EINVAL;
1194 }
1195
0a6e7778
PJV		 1196 if (msk_depth)
1197 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
1198 break;
1199 default:
1200 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
1201 return -EINVAL;
1202 }
1203 }
1204
1205 return 0;
1206}
1207
e0ace68a
PB		 1208static int fl_set_key_ct(struct nlattr **tb,
1209 struct flow_dissector_key_ct *key,
1210 struct flow_dissector_key_ct *mask,
1211 struct netlink_ext_ack *extack)
1212{
1213 if (tb[TCA_FLOWER_KEY_CT_STATE]) {
1214 if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) {
1215 NL_SET_ERR_MSG(extack, "Conntrack isn't enabled");
1216 return -EOPNOTSUPP;
1217 }
1218 fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
1219 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
1220 sizeof(key->ct_state));
1221 }
1222 if (tb[TCA_FLOWER_KEY_CT_ZONE]) {
1223 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) {
1224 NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled");
1225 return -EOPNOTSUPP;
1226 }
1227 fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
1228 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
1229 sizeof(key->ct_zone));
1230 }
1231 if (tb[TCA_FLOWER_KEY_CT_MARK]) {
1232 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) {
1233 NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled");
1234 return -EOPNOTSUPP;
1235 }
1236 fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
1237 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
1238 sizeof(key->ct_mark));
1239 }
1240 if (tb[TCA_FLOWER_KEY_CT_LABELS]) {
1241 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) {
1242 NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled");
1243 return -EOPNOTSUPP;
1244 }
1245 fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
1246 mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
1247 sizeof(key->ct_labels));
1248 }
1249
1250 return 0;
1251}
1252
77b9900e 1253static int fl_set_key(struct net *net, struct nlattr **tb,
1057c55f
AA		 1254 struct fl_flow_key *key, struct fl_flow_key *mask,
1255 struct netlink_ext_ack *extack)
77b9900e 1256{
9399ae9a 1257 __be16 ethertype;
d9724772 1258 int ret = 0;
a5148626 1259
77b9900e 1260 if (tb[TCA_FLOWER_INDEV]) {
1057c55f 1261 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
77b9900e
JP		 1262 if (err < 0)
1263 return err;
8212ed77
JP		 1264 key->meta.ingress_ifindex = err;
1265 mask->meta.ingress_ifindex = 0xffffffff;
77b9900e
JP		 1266 }
1267
1268 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1269 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1270 sizeof(key->eth.dst));
1271 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1272 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1273 sizeof(key->eth.src));
66530bdf 1274
0b498a52 1275 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
9399ae9a
HHZ		 1276 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
1277
aaab0834 1278 if (eth_type_vlan(ethertype)) {
d64efd09
JL		 1279 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
1280 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan,
1281 &mask->vlan);
1282
5e9a0fe4
JL		 1283 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
1284 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
1285 if (eth_type_vlan(ethertype)) {
1286 fl_set_key_vlan(tb, ethertype,
1287 TCA_FLOWER_KEY_CVLAN_ID,
1288 TCA_FLOWER_KEY_CVLAN_PRIO,
1289 &key->cvlan, &mask->cvlan);
1290 fl_set_key_val(tb, &key->basic.n_proto,
1291 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1292 &mask->basic.n_proto,
1293 TCA_FLOWER_UNSPEC,
1294 sizeof(key->basic.n_proto));
1295 } else {
1296 key->basic.n_proto = ethertype;
1297 mask->basic.n_proto = cpu_to_be16(~0);
1298 }
d64efd09 1299 }
0b498a52
AB		 1300 } else {
1301 key->basic.n_proto = ethertype;
1302 mask->basic.n_proto = cpu_to_be16(~0);
1303 }
9399ae9a 1304 }
66530bdf 1305
77b9900e
JP		 1306 if (key->basic.n_proto == htons(ETH_P_IP) ||
1307 key->basic.n_proto == htons(ETH_P_IPV6)) {
1308 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1309 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1310 sizeof(key->basic.ip_proto));
0e2c17b6 1311 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
77b9900e 1312 }
66530bdf
JHS		 1313
1314 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
1315 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1316 mask->control.addr_type = ~0;
77b9900e
JP		 1317 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1318 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1319 sizeof(key->ipv4.src));
1320 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1321 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1322 sizeof(key->ipv4.dst));
66530bdf
JHS		 1323 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
1324 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1325 mask->control.addr_type = ~0;
77b9900e
JP		 1326 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1327 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1328 sizeof(key->ipv6.src));
1329 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1330 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1331 sizeof(key->ipv6.dst));
1332 }
66530bdf 1333
77b9900e
JP		 1334 if (key->basic.ip_proto == IPPROTO_TCP) {
1335 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 1336 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 1337 sizeof(key->tp.src));
1338 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 1339 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
77b9900e 1340 sizeof(key->tp.dst));
fdfc7dd6
JP		 1341 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1342 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1343 sizeof(key->tcp.flags));
77b9900e
JP		 1344 } else if (key->basic.ip_proto == IPPROTO_UDP) {
1345 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 1346 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 1347 sizeof(key->tp.src));
1348 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 1349 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
77b9900e 1350 sizeof(key->tp.dst));
5976c5f4
SH		 1351 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
1352 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1353 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1354 sizeof(key->tp.src));
1355 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1356 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1357 sizeof(key->tp.dst));
7b684884
SH		 1358 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
1359 key->basic.ip_proto == IPPROTO_ICMP) {
1360 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
1361 &mask->icmp.type,
1362 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1363 sizeof(key->icmp.type));
1364 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
1365 &mask->icmp.code,
1366 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1367 sizeof(key->icmp.code));
1368 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1369 key->basic.ip_proto == IPPROTO_ICMPV6) {
1370 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1371 &mask->icmp.type,
1372 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1373 sizeof(key->icmp.type));
040587af 1374 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
7b684884 1375 &mask->icmp.code,
040587af 1376 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
7b684884 1377 sizeof(key->icmp.code));
a577d8f7
BL		 1378 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1379 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
442f730e 1380 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack);
1a7fca63
BL		 1381 if (ret)
1382 return ret;
99d31326
SH		 1383 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1384 key->basic.n_proto == htons(ETH_P_RARP)) {
1385 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1386 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1387 sizeof(key->arp.sip));
1388 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1389 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1390 sizeof(key->arp.tip));
1391 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1392 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1393 sizeof(key->arp.op));
1394 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1395 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1396 sizeof(key->arp.sha));
1397 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1398 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1399 sizeof(key->arp.tha));
77b9900e
JP		 1400 }
1401
5c72299f
AN		 1402 if (key->basic.ip_proto == IPPROTO_TCP ||
1403 key->basic.ip_proto == IPPROTO_UDP ||
1404 key->basic.ip_proto == IPPROTO_SCTP) {
1405 ret = fl_set_key_port_range(tb, key, mask);
1406 if (ret)
1407 return ret;
1408 }
1409
bc3103f1
AV		 1410 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1411 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1412 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1413 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1414 fl_set_key_val(tb, &key->enc_ipv4.src,
1415 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1416 &mask->enc_ipv4.src,
1417 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1418 sizeof(key->enc_ipv4.src));
1419 fl_set_key_val(tb, &key->enc_ipv4.dst,
1420 TCA_FLOWER_KEY_ENC_IPV4_DST,
1421 &mask->enc_ipv4.dst,
1422 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1423 sizeof(key->enc_ipv4.dst));
1424 }
1425
1426 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1427 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1428 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1429 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1430 fl_set_key_val(tb, &key->enc_ipv6.src,
1431 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1432 &mask->enc_ipv6.src,
1433 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1434 sizeof(key->enc_ipv6.src));
1435 fl_set_key_val(tb, &key->enc_ipv6.dst,
1436 TCA_FLOWER_KEY_ENC_IPV6_DST,
1437 &mask->enc_ipv6.dst,
1438 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1439 sizeof(key->enc_ipv6.dst));
1440 }
1441
1442 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1443 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
bc3103f1
AV		 1444 sizeof(key->enc_key_id.keyid));
1445
f4d997fd
HHZ		 1446 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1447 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1448 sizeof(key->enc_tp.src));
1449
1450 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1451 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1452 sizeof(key->enc_tp.dst));
1453
0e2c17b6
OG		 1454 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1455
0a6e7778
PJV		 1456 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1457 ret = fl_set_enc_opt(tb, key, mask, extack);
1458 if (ret)
1459 return ret;
1460 }
1461
e0ace68a
PB		 1462 ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack);
1463 if (ret)
1464 return ret;
1465
d9724772
OG		 1466 if (tb[TCA_FLOWER_KEY_FLAGS])
1467 ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
faa3ffce 1468
d9724772 1469 return ret;
77b9900e
JP		 1470}
1471
05cd271f
PB		 1472static void fl_mask_copy(struct fl_flow_mask *dst,
1473 struct fl_flow_mask *src)
77b9900e 1474{
05cd271f
PB		 1475 const void *psrc = fl_key_get_start(&src->key, src);
1476 void *pdst = fl_key_get_start(&dst->key, src);
77b9900e 1477
05cd271f
PB		 1478 memcpy(pdst, psrc, fl_mask_range(src));
1479 dst->range = src->range;
77b9900e
JP		 1480}
1481
1482static const struct rhashtable_params fl_ht_params = {
1483 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1484 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1485 .automatic_shrinking = true,
1486};
1487
05cd271f 1488static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
77b9900e 1489{
05cd271f
PB		 1490 mask->filter_ht_params = fl_ht_params;
1491 mask->filter_ht_params.key_len = fl_mask_range(mask);
1492 mask->filter_ht_params.key_offset += mask->range.start;
77b9900e 1493
05cd271f 1494 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
77b9900e
JP		 1495}
1496
1497#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
c593642c 1498#define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member)
77b9900e 1499
339ba878
HHZ		 1500#define FL_KEY_IS_MASKED(mask, member) \
1501 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1502 0, FL_KEY_MEMBER_SIZE(member)) \
77b9900e
JP		 1503
1504#define FL_KEY_SET(keys, cnt, id, member) \
1505 do { \
1506 keys[cnt].key_id = id; \
1507 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1508 cnt++; \
1509 } while(0);
1510
339ba878 1511#define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
77b9900e 1512 do { \
339ba878 1513 if (FL_KEY_IS_MASKED(mask, member)) \
77b9900e
JP		 1514 FL_KEY_SET(keys, cnt, id, member); \
1515 } while(0);
1516
33fb5cba
JP		 1517static void fl_init_dissector(struct flow_dissector *dissector,
1518 struct fl_flow_key *mask)
77b9900e
JP		 1519{
1520 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1521 size_t cnt = 0;
1522
8212ed77
JP		 1523 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1524 FLOW_DISSECTOR_KEY_META, meta);
42aecaa9 1525 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
77b9900e 1526 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
33fb5cba 1527 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1528 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
33fb5cba 1529 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1530 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
33fb5cba 1531 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1532 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
8ffb055b
YK		 1533 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1534 FLOW_DISSECTOR_KEY_PORTS, tp);
1535 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1536 FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range);
33fb5cba 1537 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
4d80cc0a 1538 FLOW_DISSECTOR_KEY_IP, ip);
33fb5cba 1539 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
fdfc7dd6 1540 FLOW_DISSECTOR_KEY_TCP, tcp);
33fb5cba 1541 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
7b684884 1542 FLOW_DISSECTOR_KEY_ICMP, icmp);
33fb5cba 1543 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
99d31326 1544 FLOW_DISSECTOR_KEY_ARP, arp);
33fb5cba 1545 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
a577d8f7 1546 FLOW_DISSECTOR_KEY_MPLS, mpls);
33fb5cba 1547 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
9399ae9a 1548 FLOW_DISSECTOR_KEY_VLAN, vlan);
33fb5cba 1549 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
d64efd09 1550 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
33fb5cba 1551 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1552 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
33fb5cba 1553 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1554 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
33fb5cba 1555 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1556 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
33fb5cba
JP		 1557 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1558 FL_KEY_IS_MASKED(mask, enc_ipv6))
519d1052
HHZ		 1559 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1560 enc_control);
33fb5cba 1561 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
f4d997fd 1562 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
33fb5cba 1563 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
0e2c17b6 1564 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
0a6e7778
PJV		 1565 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1566 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
e0ace68a
PB		 1567 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1568 FLOW_DISSECTOR_KEY_CT, ct);
77b9900e 1569
33fb5cba 1570 skb_flow_dissector_init(dissector, keys, cnt);
05cd271f
PB		 1571}
1572
1573static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1574 struct fl_flow_mask *mask)
1575{
1576 struct fl_flow_mask *newmask;
1577 int err;
1578
1579 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1580 if (!newmask)
1581 return ERR_PTR(-ENOMEM);
1582
1583 fl_mask_copy(newmask, mask);
1584
8ffb055b
YK		 1585 if ((newmask->key.tp_range.tp_min.dst &&
1586 newmask->key.tp_range.tp_max.dst) ||
1587 (newmask->key.tp_range.tp_min.src &&
1588 newmask->key.tp_range.tp_max.src))
5c72299f
AN		 1589 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
1590
05cd271f
PB		 1591 err = fl_init_mask_hashtable(newmask);
1592 if (err)
1593 goto errout_free;
1594
33fb5cba 1595 fl_init_dissector(&newmask->dissector, &newmask->key);
05cd271f
PB		 1596
1597 INIT_LIST_HEAD_RCU(&newmask->filters);
1598
f48ef4d5 1599 refcount_set(&newmask->refcnt, 1);
195c234d
VB		 1600 err = rhashtable_replace_fast(&head->ht, &mask->ht_node,
1601 &newmask->ht_node, mask_ht_params);
05cd271f
PB		 1602 if (err)
1603 goto errout_destroy;
1604
259e60f9 1605 spin_lock(&head->masks_lock);
05cd271f 1606 list_add_tail_rcu(&newmask->list, &head->masks);
259e60f9 1607 spin_unlock(&head->masks_lock);
05cd271f
PB		 1608
1609 return newmask;
1610
1611errout_destroy:
1612 rhashtable_destroy(&newmask->ht);
1613errout_free:
1614 kfree(newmask);
1615
1616 return ERR_PTR(err);
77b9900e
JP		 1617}
1618
1619static int fl_check_assign_mask(struct cls_fl_head *head,
05cd271f
PB		 1620 struct cls_fl_filter *fnew,
1621 struct cls_fl_filter *fold,
77b9900e
JP		 1622 struct fl_flow_mask *mask)
1623{
05cd271f 1624 struct fl_flow_mask *newmask;
f48ef4d5 1625 int ret = 0;
77b9900e 1626
f48ef4d5 1627 rcu_read_lock();
195c234d
VB		 1628
1629 /* Insert mask as temporary node to prevent concurrent creation of mask
1630 * with same key. Any concurrent lookups with same key will return
99815f50 1631 * -EAGAIN because mask's refcnt is zero.
195c234d
VB		 1632 */
1633 fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht,
1634 &mask->ht_node,
1635 mask_ht_params);
05cd271f 1636 if (!fnew->mask) {
f48ef4d5
VB		 1637 rcu_read_unlock();
1638
195c234d
VB		 1639 if (fold) {
1640 ret = -EINVAL;
1641 goto errout_cleanup;
1642 }
77b9900e 1643
05cd271f 1644 newmask = fl_create_new_mask(head, mask);
195c234d
VB		 1645 if (IS_ERR(newmask)) {
1646 ret = PTR_ERR(newmask);
1647 goto errout_cleanup;
1648 }
77b9900e 1649
05cd271f 1650 fnew->mask = newmask;
f48ef4d5 1651 return 0;
195c234d
VB		 1652 } else if (IS_ERR(fnew->mask)) {
1653 ret = PTR_ERR(fnew->mask);
f6521c58 1654 } else if (fold && fold->mask != fnew->mask) {
f48ef4d5
VB		 1655 ret = -EINVAL;
1656 } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) {
1657 /* Mask was deleted concurrently, try again */
1658 ret = -EAGAIN;
05cd271f 1659 }
f48ef4d5
VB		 1660 rcu_read_unlock();
1661 return ret;
195c234d
VB		 1662
1663errout_cleanup:
1664 rhashtable_remove_fast(&head->ht, &mask->ht_node,
1665 mask_ht_params);
195c234d 1666 return ret;
77b9900e
JP		 1667}
1668
1669static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1670 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1671 unsigned long base, struct nlattr **tb,
50a56190 1672 struct nlattr *est, bool ovr,
c24e43d8 1673 struct fl_flow_tmplt *tmplt, bool rtnl_held,
50a56190 1674 struct netlink_ext_ack *extack)
77b9900e 1675{
77b9900e
JP		 1676 int err;
1677
c24e43d8 1678 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, rtnl_held,
ec6743a1 1679 extack);
77b9900e
JP		 1680 if (err < 0)
1681 return err;
1682
1683 if (tb[TCA_FLOWER_CLASSID]) {
1684 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
c24e43d8
VB		 1685 if (!rtnl_held)
1686 rtnl_lock();
77b9900e 1687 tcf_bind_filter(tp, &f->res, base);
c24e43d8
VB		 1688 if (!rtnl_held)
1689 rtnl_unlock();
77b9900e
JP		 1690 }
1691
1057c55f 1692 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
77b9900e 1693 if (err)
45507529 1694 return err;
77b9900e
JP		 1695
1696 fl_mask_update_range(mask);
1697 fl_set_masked_key(&f->mkey, &f->key, mask);
1698
b95ec7eb
JP		 1699 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1700 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1701 return -EINVAL;
1702 }
1703
77b9900e 1704 return 0;
77b9900e
JP		 1705}
1706
1f17f774
VB		 1707static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
1708 struct cls_fl_filter *fold,
1709 bool *in_ht)
1710{
1711 struct fl_flow_mask *mask = fnew->mask;
1712 int err;
1713
9e35552a
VB		 1714 err = rhashtable_lookup_insert_fast(&mask->ht,
1715 &fnew->ht_node,
1716 mask->filter_ht_params);
1f17f774
VB		 1717 if (err) {
1718 *in_ht = false;
1719 /* It is okay if filter with same key exists when
1720 * overwriting.
1721 */
1722 return fold && err == -EEXIST ? 0 : err;
1723 }
1724
1725 *in_ht = true;
1726 return 0;
1727}
1728
77b9900e
JP		 1729static int fl_change(struct net *net, struct sk_buff *in_skb,
1730 struct tcf_proto *tp, unsigned long base,
1731 u32 handle, struct nlattr **tca,
12db03b6
VB		 1732 void **arg, bool ovr, bool rtnl_held,
1733 struct netlink_ext_ack *extack)
77b9900e 1734{
e474619a 1735 struct cls_fl_head *head = fl_head_dereference(tp);
8113c095 1736 struct cls_fl_filter *fold = *arg;
77b9900e 1737 struct cls_fl_filter *fnew;
2cddd201 1738 struct fl_flow_mask *mask;
39b7b6a6 1739 struct nlattr **tb;
1f17f774 1740 bool in_ht;
77b9900e
JP		 1741 int err;
1742
06177558
VB		 1743 if (!tca[TCA_OPTIONS]) {
1744 err = -EINVAL;
1745 goto errout_fold;
1746 }
77b9900e 1747
2cddd201 1748 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
06177558
VB		 1749 if (!mask) {
1750 err = -ENOBUFS;
1751 goto errout_fold;
1752 }
39b7b6a6 1753
2cddd201
IV		 1754 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1755 if (!tb) {
1756 err = -ENOBUFS;
1757 goto errout_mask_alloc;
1758 }
1759
8cb08174
JB		 1760 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
1761 tca[TCA_OPTIONS], fl_policy, NULL);
77b9900e 1762 if (err < 0)
39b7b6a6 1763 goto errout_tb;
77b9900e 1764
39b7b6a6
AB		 1765 if (fold && handle && fold->handle != handle) {
1766 err = -EINVAL;
1767 goto errout_tb;
1768 }
77b9900e
JP		 1769
1770 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
39b7b6a6
AB		 1771 if (!fnew) {
1772 err = -ENOBUFS;
1773 goto errout_tb;
1774 }
c049d56e 1775 INIT_LIST_HEAD(&fnew->hw_list);
06177558 1776 refcount_set(&fnew->refcnt, 1);
77b9900e 1777
14215108 1778 err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0);
b9a24bb7
WC		 1779 if (err < 0)
1780 goto errout;
77b9900e 1781
e69985c6
AV		 1782 if (tb[TCA_FLOWER_FLAGS]) {
1783 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
1784
1785 if (!tc_flags_valid(fnew->flags)) {
1786 err = -EINVAL;
ecb3dea4 1787 goto errout;
e69985c6
AV		 1788 }
1789 }
5b33f488 1790
2cddd201 1791 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
c24e43d8 1792 tp->chain->tmplt_priv, rtnl_held, extack);
77b9900e 1793 if (err)
ecb3dea4 1794 goto errout;
77b9900e 1795
2cddd201 1796 err = fl_check_assign_mask(head, fnew, fold, mask);
77b9900e 1797 if (err)
ecb3dea4
VB		 1798 goto errout;
1799
1f17f774
VB		 1800 err = fl_ht_insert_unique(fnew, fold, &in_ht);
1801 if (err)
1802 goto errout_mask;
1803
79685219 1804 if (!tc_skip_hw(fnew->flags)) {
c24e43d8 1805 err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack);
79685219 1806 if (err)
1f17f774 1807 goto errout_ht;
79685219 1808 }
5b33f488 1809
55593960
OG		 1810 if (!tc_in_hw(fnew->flags))
1811 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
1812
3d81e711
VB		 1813 spin_lock(&tp->lock);
1814
272ffaad
VB		 1815 /* tp was deleted concurrently. -EAGAIN will cause caller to lookup
1816 * proto again or create new one, if necessary.
1817 */
1818 if (tp->deleting) {
1819 err = -EAGAIN;
1820 goto errout_hw;
1821 }
1822
5b33f488 1823 if (fold) {
b2552b8c
VB		 1824 /* Fold filter was deleted concurrently. Retry lookup. */
1825 if (fold->deleted) {
1826 err = -EAGAIN;
1827 goto errout_hw;
1828 }
1829
620da486
VB		 1830 fnew->handle = handle;
1831
1f17f774
VB		 1832 if (!in_ht) {
1833 struct rhashtable_params params =
1834 fnew->mask->filter_ht_params;
1835
1836 err = rhashtable_insert_fast(&fnew->mask->ht,
1837 &fnew->ht_node,
1838 params);
1839 if (err)
1840 goto errout_hw;
1841 in_ht = true;
1842 }
620da486 1843
c049d56e 1844 refcount_inc(&fnew->refcnt);
599d2570
RD		 1845 rhashtable_remove_fast(&fold->mask->ht,
1846 &fold->ht_node,
1847 fold->mask->filter_ht_params);
234a4624 1848 idr_replace(&head->handle_idr, fnew, fnew->handle);
ff3532f2 1849 list_replace_rcu(&fold->list, &fnew->list);
b2552b8c 1850 fold->deleted = true;
620da486 1851
3d81e711
VB		 1852 spin_unlock(&tp->lock);
1853
9994677c 1854 fl_mask_put(head, fold->mask);
620da486 1855 if (!tc_skip_hw(fold->flags))
c24e43d8 1856 fl_hw_destroy_filter(tp, fold, rtnl_held, NULL);
77b9900e 1857 tcf_unbind_filter(tp, &fold->res);
06177558
VB		 1858 /* Caller holds reference to fold, so refcnt is always > 0
1859 * after this.
1860 */
1861 refcount_dec(&fold->refcnt);
1862 __fl_put(fold);
77b9900e 1863 } else {
620da486
VB		 1864 if (handle) {
1865 /* user specifies a handle and it doesn't exist */
1866 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1867 handle, GFP_ATOMIC);
9a2d9389
VB		 1868
1869 /* Filter with specified handle was concurrently
1870 * inserted after initial check in cls_api. This is not
1871 * necessarily an error if NLM_F_EXCL is not set in
1872 * message flags. Returning EAGAIN will cause cls_api to
1873 * try to update concurrently inserted rule.
1874 */
1875 if (err == -ENOSPC)
1876 err = -EAGAIN;
620da486
VB		 1877 } else {
1878 handle = 1;
1879 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1880 INT_MAX, GFP_ATOMIC);
1881 }
1882 if (err)
1883 goto errout_hw;
1884
c049d56e 1885 refcount_inc(&fnew->refcnt);
620da486 1886 fnew->handle = handle;
05cd271f 1887 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
3d81e711 1888 spin_unlock(&tp->lock);
77b9900e
JP		 1889 }
1890
620da486
VB		 1891 *arg = fnew;
1892
39b7b6a6 1893 kfree(tb);
99815f50 1894 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
77b9900e
JP		 1895 return 0;
1896
c049d56e
VB		 1897errout_ht:
1898 spin_lock(&tp->lock);
620da486 1899errout_hw:
c049d56e 1900 fnew->deleted = true;
3d81e711 1901 spin_unlock(&tp->lock);
620da486 1902 if (!tc_skip_hw(fnew->flags))
c24e43d8 1903 fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL);
1f17f774
VB		 1904 if (in_ht)
1905 rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
1906 fnew->mask->filter_ht_params);
ecb3dea4 1907errout_mask:
9994677c 1908 fl_mask_put(head, fnew->mask);
77b9900e 1909errout:
c049d56e 1910 __fl_put(fnew);
39b7b6a6
AB		 1911errout_tb:
1912 kfree(tb);
2cddd201 1913errout_mask_alloc:
99815f50 1914 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
06177558
VB		 1915errout_fold:
1916 if (fold)
1917 __fl_put(fold);
77b9900e
JP		 1918 return err;
1919}
1920
571acf21 1921static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
12db03b6 1922 bool rtnl_held, struct netlink_ext_ack *extack)
77b9900e 1923{
e474619a 1924 struct cls_fl_head *head = fl_head_dereference(tp);
8113c095 1925 struct cls_fl_filter *f = arg;
b2552b8c
VB		 1926 bool last_on_mask;
1927 int err = 0;
77b9900e 1928
c24e43d8 1929 err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack);
05cd271f 1930 *last = list_empty(&head->masks);
06177558
VB		 1931 __fl_put(f);
1932
b2552b8c 1933 return err;
77b9900e
JP		 1934}
1935
12db03b6
VB		 1936static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
1937 bool rtnl_held)
77b9900e 1938{
d39d7149
CW		 1939 struct cls_fl_head *head = fl_head_dereference(tp);
1940 unsigned long id = arg->cookie, tmp;
77b9900e 1941 struct cls_fl_filter *f;
05cd271f 1942
01683a14
VB		 1943 arg->count = arg->skip;
1944
d39d7149
CW		 1945 idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
1946 /* don't return filters that are being deleted */
1947 if (!refcount_inc_not_zero(&f->refcnt))
1948 continue;
01683a14 1949 if (arg->fn(tp, f, arg) < 0) {
06177558 1950 __fl_put(f);
01683a14
VB		 1951 arg->stop = 1;
1952 break;
05cd271f 1953 }
06177558 1954 __fl_put(f);
01683a14 1955 arg->count++;
77b9900e 1956 }
d39d7149 1957 arg->cookie = id;
77b9900e
JP		 1958}
1959
c049d56e
VB		 1960static struct cls_fl_filter *
1961fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add)
1962{
1963 struct cls_fl_head *head = fl_head_dereference(tp);
1964
1965 spin_lock(&tp->lock);
1966 if (list_empty(&head->hw_filters)) {
1967 spin_unlock(&tp->lock);
1968 return NULL;
1969 }
1970
1971 if (!f)
1972 f = list_entry(&head->hw_filters, struct cls_fl_filter,
1973 hw_list);
1974 list_for_each_entry_continue(f, &head->hw_filters, hw_list) {
1975 if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) {
1976 spin_unlock(&tp->lock);
1977 return f;
1978 }
1979 }
1980
1981 spin_unlock(&tp->lock);
1982 return NULL;
1983}
1984
a7323311 1985static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
31533cba
JH		 1986 void *cb_priv, struct netlink_ext_ack *extack)
1987{
31533cba 1988 struct tcf_block *block = tp->chain->block;
f9e30088 1989 struct flow_cls_offload cls_flower = {};
c049d56e 1990 struct cls_fl_filter *f = NULL;
31533cba
JH		 1991 int err;
1992
c049d56e
VB		 1993 /* hw_filters list can only be changed by hw offload functions after
1994 * obtaining rtnl lock. Make sure it is not changed while reoffload is
1995 * iterating it.
1996 */
1997 ASSERT_RTNL();
3a7b6861 1998
c049d56e 1999 while ((f = fl_get_next_hw_filter(tp, f, add))) {
95e27a4d
JH		 2000 cls_flower.rule =
2001 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
2002 if (!cls_flower.rule) {
2003 __fl_put(f);
2004 return -ENOMEM;
2005 }
31533cba 2006
95e27a4d 2007 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags,
d6787147 2008 extack);
95e27a4d 2009 cls_flower.command = add ?
f9e30088 2010 FLOW_CLS_REPLACE : FLOW_CLS_DESTROY;
95e27a4d
JH		 2011 cls_flower.cookie = (unsigned long)f;
2012 cls_flower.rule->match.dissector = &f->mask->dissector;
2013 cls_flower.rule->match.mask = &f->mask->key;
2014 cls_flower.rule->match.key = &f->mkey;
2015
b15e7a6e 2016 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
95e27a4d 2017 if (err) {
8f256622 2018 kfree(cls_flower.rule);
95e27a4d
JH		 2019 if (tc_skip_sw(f->flags)) {
2020 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
2021 __fl_put(f);
2022 return err;
31533cba 2023 }
95e27a4d
JH		 2024 goto next_flow;
2025 }
31533cba 2026
95e27a4d
JH		 2027 cls_flower.classid = f->res.classid;
2028
40119211
VB		 2029 err = tc_setup_cb_reoffload(block, tp, add, cb,
2030 TC_SETUP_CLSFLOWER, &cls_flower,
2031 cb_priv, &f->flags,
2032 &f->in_hw_count);
5a6ff4b1 2033 tc_cleanup_flow_action(&cls_flower.rule->action);
95e27a4d
JH		 2034 kfree(cls_flower.rule);
2035
2036 if (err) {
40119211
VB		 2037 __fl_put(f);
2038 return err;
31533cba 2039 }
95e27a4d 2040next_flow:
95e27a4d 2041 __fl_put(f);
31533cba
JH		 2042 }
2043
2044 return 0;
2045}
2046
a449a3e7
VB		 2047static void fl_hw_add(struct tcf_proto *tp, void *type_data)
2048{
2049 struct flow_cls_offload *cls_flower = type_data;
2050 struct cls_fl_filter *f =
2051 (struct cls_fl_filter *) cls_flower->cookie;
2052 struct cls_fl_head *head = fl_head_dereference(tp);
2053
2054 spin_lock(&tp->lock);
2055 list_add(&f->hw_list, &head->hw_filters);
2056 spin_unlock(&tp->lock);
2057}
2058
2059static void fl_hw_del(struct tcf_proto *tp, void *type_data)
2060{
2061 struct flow_cls_offload *cls_flower = type_data;
2062 struct cls_fl_filter *f =
2063 (struct cls_fl_filter *) cls_flower->cookie;
2064
2065 spin_lock(&tp->lock);
2066 if (!list_empty(&f->hw_list))
2067 list_del_init(&f->hw_list);
2068 spin_unlock(&tp->lock);
2069}
2070
8f256622
PNA		 2071static int fl_hw_create_tmplt(struct tcf_chain *chain,
2072 struct fl_flow_tmplt *tmplt)
34738452 2073{
f9e30088 2074 struct flow_cls_offload cls_flower = {};
34738452 2075 struct tcf_block *block = chain->block;
34738452 2076
e3ab786b 2077 cls_flower.rule = flow_rule_alloc(0);
8f256622
PNA		 2078 if (!cls_flower.rule)
2079 return -ENOMEM;
2080
34738452 2081 cls_flower.common.chain_index = chain->index;
f9e30088 2082 cls_flower.command = FLOW_CLS_TMPLT_CREATE;
34738452 2083 cls_flower.cookie = (unsigned long) tmplt;
8f256622
PNA		 2084 cls_flower.rule->match.dissector = &tmplt->dissector;
2085 cls_flower.rule->match.mask = &tmplt->mask;
2086 cls_flower.rule->match.key = &tmplt->dummy_key;
34738452
JP		 2087
2088 /* We don't care if driver (any of them) fails to handle this
2089 * call. It serves just as a hint for it.
2090 */
40119211 2091 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
8f256622
PNA		 2092 kfree(cls_flower.rule);
2093
2094 return 0;
34738452
JP		 2095}
2096
2097static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
2098 struct fl_flow_tmplt *tmplt)
2099{
f9e30088 2100 struct flow_cls_offload cls_flower = {};
34738452
JP		 2101 struct tcf_block *block = chain->block;
2102
2103 cls_flower.common.chain_index = chain->index;
f9e30088 2104 cls_flower.command = FLOW_CLS_TMPLT_DESTROY;
34738452
JP		 2105 cls_flower.cookie = (unsigned long) tmplt;
2106
40119211 2107 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
34738452
JP		 2108}
2109
b95ec7eb
JP		 2110static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
2111 struct nlattr **tca,
2112 struct netlink_ext_ack *extack)
2113{
2114 struct fl_flow_tmplt *tmplt;
2115 struct nlattr **tb;
2116 int err;
2117
2118 if (!tca[TCA_OPTIONS])
2119 return ERR_PTR(-EINVAL);
2120
2121 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2122 if (!tb)
2123 return ERR_PTR(-ENOBUFS);
8cb08174
JB		 2124 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2125 tca[TCA_OPTIONS], fl_policy, NULL);
b95ec7eb
JP		 2126 if (err)
2127 goto errout_tb;
2128
2129 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
1cbc36a5
DC		 2130 if (!tmplt) {
2131 err = -ENOMEM;
b95ec7eb 2132 goto errout_tb;
1cbc36a5 2133 }
b95ec7eb
JP		 2134 tmplt->chain = chain;
2135 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
2136 if (err)
2137 goto errout_tmplt;
b95ec7eb
JP		 2138
2139 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
2140
8f256622
PNA		 2141 err = fl_hw_create_tmplt(chain, tmplt);
2142 if (err)
2143 goto errout_tmplt;
34738452 2144
8f256622 2145 kfree(tb);
b95ec7eb
JP		 2146 return tmplt;
2147
2148errout_tmplt:
2149 kfree(tmplt);
2150errout_tb:
2151 kfree(tb);
2152 return ERR_PTR(err);
2153}
2154
ec3ed293
VB		 2155static void fl_tmplt_destroy(void *tmplt_priv)
2156{
2157 struct fl_flow_tmplt *tmplt = tmplt_priv;
2158
95278dda
CW		 2159 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
2160 kfree(tmplt);
ec3ed293
VB		 2161}
2162
77b9900e
JP		 2163static int fl_dump_key_val(struct sk_buff *skb,
2164 void *val, int val_type,
2165 void *mask, int mask_type, int len)
2166{
2167 int err;
2168
2169 if (!memchr_inv(mask, 0, len))
2170 return 0;
2171 err = nla_put(skb, val_type, len, val);
2172 if (err)
2173 return err;
2174 if (mask_type != TCA_FLOWER_UNSPEC) {
2175 err = nla_put(skb, mask_type, len, mask);
2176 if (err)
2177 return err;
2178 }
2179 return 0;
2180}
2181
5c72299f
AN		 2182static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
2183 struct fl_flow_key *mask)
2184{
8ffb055b
YK		 2185 if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst,
2186 TCA_FLOWER_KEY_PORT_DST_MIN,
2187 &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC,
2188 sizeof(key->tp_range.tp_min.dst)) ||
2189 fl_dump_key_val(skb, &key->tp_range.tp_max.dst,
2190 TCA_FLOWER_KEY_PORT_DST_MAX,
2191 &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC,
2192 sizeof(key->tp_range.tp_max.dst)) ||
2193 fl_dump_key_val(skb, &key->tp_range.tp_min.src,
2194 TCA_FLOWER_KEY_PORT_SRC_MIN,
2195 &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC,
2196 sizeof(key->tp_range.tp_min.src)) ||
2197 fl_dump_key_val(skb, &key->tp_range.tp_max.src,
2198 TCA_FLOWER_KEY_PORT_SRC_MAX,
2199 &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC,
2200 sizeof(key->tp_range.tp_max.src)))
5c72299f
AN		 2201 return -1;
2202
2203 return 0;
2204}
2205
a577d8f7
BL		 2206static int fl_dump_key_mpls(struct sk_buff *skb,
2207 struct flow_dissector_key_mpls *mpls_key,
2208 struct flow_dissector_key_mpls *mpls_mask)
2209{
2210 int err;
2211
2212 if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask)))
2213 return 0;
2214 if (mpls_mask->mpls_ttl) {
2215 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
2216 mpls_key->mpls_ttl);
2217 if (err)
2218 return err;
2219 }
2220 if (mpls_mask->mpls_tc) {
2221 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
2222 mpls_key->mpls_tc);
2223 if (err)
2224 return err;
2225 }
2226 if (mpls_mask->mpls_label) {
2227 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
2228 mpls_key->mpls_label);
2229 if (err)
2230 return err;
2231 }
2232 if (mpls_mask->mpls_bos) {
2233 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
2234 mpls_key->mpls_bos);
2235 if (err)
2236 return err;
2237 }
2238 return 0;
2239}
2240
0e2c17b6 2241static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
4d80cc0a
OG		 2242 struct flow_dissector_key_ip *key,
2243 struct flow_dissector_key_ip *mask)
2244{
0e2c17b6
OG		 2245 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
2246 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
2247 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
2248 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
2249
2250 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
2251 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
4d80cc0a
OG		 2252 return -1;
2253
2254 return 0;
2255}
2256
9399ae9a 2257static int fl_dump_key_vlan(struct sk_buff *skb,
d64efd09 2258 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 2259 struct flow_dissector_key_vlan *vlan_key,
2260 struct flow_dissector_key_vlan *vlan_mask)
2261{
2262 int err;
2263
2264 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
2265 return 0;
2266 if (vlan_mask->vlan_id) {
d64efd09 2267 err = nla_put_u16(skb, vlan_id_key,
9399ae9a
HHZ		 2268 vlan_key->vlan_id);
2269 if (err)
2270 return err;
2271 }
2272 if (vlan_mask->vlan_priority) {
d64efd09 2273 err = nla_put_u8(skb, vlan_prio_key,
9399ae9a
HHZ		 2274 vlan_key->vlan_priority);
2275 if (err)
2276 return err;
2277 }
2278 return 0;
2279}
2280
faa3ffce
OG		 2281static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
2282 u32 *flower_key, u32 *flower_mask,
2283 u32 flower_flag_bit, u32 dissector_flag_bit)
2284{
2285 if (dissector_mask & dissector_flag_bit) {
2286 *flower_mask |= flower_flag_bit;
2287 if (dissector_key & dissector_flag_bit)
2288 *flower_key |= flower_flag_bit;
2289 }
2290}
2291
2292static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
2293{
2294 u32 key, mask;
2295 __be32 _key, _mask;
2296 int err;
2297
2298 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
2299 return 0;
2300
2301 key = 0;
2302 mask = 0;
2303
2304 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2305 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 2306 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2307 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
2308 FLOW_DIS_FIRST_FRAG);
faa3ffce
OG		 2309
2310 _key = cpu_to_be32(key);
2311 _mask = cpu_to_be32(mask);
2312
2313 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
2314 if (err)
2315 return err;
2316
2317 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
2318}
2319
0a6e7778
PJV		 2320static int fl_dump_key_geneve_opt(struct sk_buff *skb,
2321 struct flow_dissector_key_enc_opts *enc_opts)
2322{
2323 struct geneve_opt *opt;
2324 struct nlattr *nest;
2325 int opt_off = 0;
2326
ae0be8de 2327 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
0a6e7778
PJV		 2328 if (!nest)
2329 goto nla_put_failure;
2330
2331 while (enc_opts->len > opt_off) {
2332 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
2333
2334 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
2335 opt->opt_class))
2336 goto nla_put_failure;
2337 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
2338 opt->type))
2339 goto nla_put_failure;
2340 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
2341 opt->length * 4, opt->opt_data))
2342 goto nla_put_failure;
2343
2344 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
2345 }
2346 nla_nest_end(skb, nest);
2347 return 0;
2348
2349nla_put_failure:
2350 nla_nest_cancel(skb, nest);
2351 return -EMSGSIZE;
2352}
2353
d8f9dfae
XL		 2354static int fl_dump_key_vxlan_opt(struct sk_buff *skb,
2355 struct flow_dissector_key_enc_opts *enc_opts)
2356{
2357 struct vxlan_metadata *md;
2358 struct nlattr *nest;
2359
2360 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN);
2361 if (!nest)
2362 goto nla_put_failure;
2363
2364 md = (struct vxlan_metadata *)&enc_opts->data[0];
2365 if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp))
2366 goto nla_put_failure;
2367
2368 nla_nest_end(skb, nest);
2369 return 0;
2370
2371nla_put_failure:
2372 nla_nest_cancel(skb, nest);
2373 return -EMSGSIZE;
2374}
2375
79b1011c
XL		 2376static int fl_dump_key_erspan_opt(struct sk_buff *skb,
2377 struct flow_dissector_key_enc_opts *enc_opts)
2378{
2379 struct erspan_metadata *md;
2380 struct nlattr *nest;
2381
2382 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN);
2383 if (!nest)
2384 goto nla_put_failure;
2385
2386 md = (struct erspan_metadata *)&enc_opts->data[0];
2387 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version))
2388 goto nla_put_failure;
2389
2390 if (md->version == 1 &&
2391 nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index))
2392 goto nla_put_failure;
2393
2394 if (md->version == 2 &&
2395 (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR,
2396 md->u.md2.dir) ||
2397 nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID,
2398 get_hwid(&md->u.md2))))
2399 goto nla_put_failure;
2400
2401 nla_nest_end(skb, nest);
2402 return 0;
2403
2404nla_put_failure:
2405 nla_nest_cancel(skb, nest);
2406 return -EMSGSIZE;
2407}
2408
e0ace68a
PB		 2409static int fl_dump_key_ct(struct sk_buff *skb,
2410 struct flow_dissector_key_ct *key,
2411 struct flow_dissector_key_ct *mask)
2412{
2413 if (IS_ENABLED(CONFIG_NF_CONNTRACK) &&
2414 fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
2415 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
2416 sizeof(key->ct_state)))
2417 goto nla_put_failure;
2418
2419 if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
2420 fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
2421 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
2422 sizeof(key->ct_zone)))
2423 goto nla_put_failure;
2424
2425 if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) &&
2426 fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
2427 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
2428 sizeof(key->ct_mark)))
2429 goto nla_put_failure;
2430
2431 if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
2432 fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
2433 &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
2434 sizeof(key->ct_labels)))
2435 goto nla_put_failure;
2436
2437 return 0;
2438
2439nla_put_failure:
2440 return -EMSGSIZE;
2441}
2442
0a6e7778
PJV		 2443static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
2444 struct flow_dissector_key_enc_opts *enc_opts)
2445{
2446 struct nlattr *nest;
2447 int err;
2448
2449 if (!enc_opts->len)
2450 return 0;
2451
ae0be8de 2452 nest = nla_nest_start_noflag(skb, enc_opt_type);
0a6e7778
PJV		 2453 if (!nest)
2454 goto nla_put_failure;
2455
2456 switch (enc_opts->dst_opt_type) {
2457 case TUNNEL_GENEVE_OPT:
2458 err = fl_dump_key_geneve_opt(skb, enc_opts);
2459 if (err)
2460 goto nla_put_failure;
2461 break;
d8f9dfae
XL		 2462 case TUNNEL_VXLAN_OPT:
2463 err = fl_dump_key_vxlan_opt(skb, enc_opts);
2464 if (err)
2465 goto nla_put_failure;
2466 break;
79b1011c
XL		 2467 case TUNNEL_ERSPAN_OPT:
2468 err = fl_dump_key_erspan_opt(skb, enc_opts);
2469 if (err)
2470 goto nla_put_failure;
2471 break;
0a6e7778
PJV		 2472 default:
2473 goto nla_put_failure;
2474 }
2475 nla_nest_end(skb, nest);
2476 return 0;
2477
2478nla_put_failure:
2479 nla_nest_cancel(skb, nest);
2480 return -EMSGSIZE;
2481}
2482
2483static int fl_dump_key_enc_opt(struct sk_buff *skb,
2484 struct flow_dissector_key_enc_opts *key_opts,
2485 struct flow_dissector_key_enc_opts *msk_opts)
2486{
2487 int err;
2488
2489 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
2490 if (err)
2491 return err;
2492
2493 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
2494}
2495
f5749081
JP		 2496static int fl_dump_key(struct sk_buff *skb, struct net *net,
2497 struct fl_flow_key *key, struct fl_flow_key *mask)
77b9900e 2498{
8212ed77 2499 if (mask->meta.ingress_ifindex) {
77b9900e
JP		 2500 struct net_device *dev;
2501
8212ed77 2502 dev = __dev_get_by_index(net, key->meta.ingress_ifindex);
77b9900e
JP		 2503 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
2504 goto nla_put_failure;
2505 }
2506
2507 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
2508 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
2509 sizeof(key->eth.dst)) ||
2510 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
2511 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
2512 sizeof(key->eth.src)) ||
2513 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
2514 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
2515 sizeof(key->basic.n_proto)))
2516 goto nla_put_failure;
9399ae9a 2517
a577d8f7
BL		 2518 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
2519 goto nla_put_failure;
2520
d64efd09
JL		 2521 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
2522 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
9399ae9a
HHZ		 2523 goto nla_put_failure;
2524
d64efd09
JL		 2525 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
2526 TCA_FLOWER_KEY_CVLAN_PRIO,
2527 &key->cvlan, &mask->cvlan) ||
2528 (mask->cvlan.vlan_tpid &&
158abbf1
JL		 2529 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2530 key->cvlan.vlan_tpid)))
d3069512
JL		 2531 goto nla_put_failure;
2532
5e9a0fe4
JL		 2533 if (mask->basic.n_proto) {
2534 if (mask->cvlan.vlan_tpid) {
2535 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
2536 key->basic.n_proto))
2537 goto nla_put_failure;
2538 } else if (mask->vlan.vlan_tpid) {
2539 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2540 key->basic.n_proto))
2541 goto nla_put_failure;
2542 }
d64efd09
JL		 2543 }
2544
77b9900e
JP		 2545 if ((key->basic.n_proto == htons(ETH_P_IP) ||
2546 key->basic.n_proto == htons(ETH_P_IPV6)) &&
4d80cc0a 2547 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
77b9900e 2548 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
4d80cc0a 2549 sizeof(key->basic.ip_proto)) ||
0e2c17b6 2550 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
77b9900e
JP		 2551 goto nla_put_failure;
2552
c3f83241 2553 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
77b9900e
JP		 2554 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
2555 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
2556 sizeof(key->ipv4.src)) ||
2557 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
2558 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
2559 sizeof(key->ipv4.dst))))
2560 goto nla_put_failure;
c3f83241 2561 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
77b9900e
JP		 2562 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
2563 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
2564 sizeof(key->ipv6.src)) ||
2565 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
2566 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
2567 sizeof(key->ipv6.dst))))
2568 goto nla_put_failure;
2569
2570 if (key->basic.ip_proto == IPPROTO_TCP &&
2571 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 2572 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 2573 sizeof(key->tp.src)) ||
2574 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 2575 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
fdfc7dd6
JP		 2576 sizeof(key->tp.dst)) ||
2577 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
2578 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
2579 sizeof(key->tcp.flags))))
77b9900e
JP		 2580 goto nla_put_failure;
2581 else if (key->basic.ip_proto == IPPROTO_UDP &&
2582 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 2583 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 2584 sizeof(key->tp.src)) ||
2585 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 2586 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
5976c5f4
SH		 2587 sizeof(key->tp.dst))))
2588 goto nla_put_failure;
2589 else if (key->basic.ip_proto == IPPROTO_SCTP &&
2590 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
2591 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
2592 sizeof(key->tp.src)) ||
2593 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
2594 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
77b9900e
JP		 2595 sizeof(key->tp.dst))))
2596 goto nla_put_failure;
7b684884
SH		 2597 else if (key->basic.n_proto == htons(ETH_P_IP) &&
2598 key->basic.ip_proto == IPPROTO_ICMP &&
2599 (fl_dump_key_val(skb, &key->icmp.type,
2600 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
2601 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
2602 sizeof(key->icmp.type)) ||
2603 fl_dump_key_val(skb, &key->icmp.code,
2604 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
2605 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
2606 sizeof(key->icmp.code))))
2607 goto nla_put_failure;
2608 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
2609 key->basic.ip_proto == IPPROTO_ICMPV6 &&
2610 (fl_dump_key_val(skb, &key->icmp.type,
2611 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
2612 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
2613 sizeof(key->icmp.type)) ||
2614 fl_dump_key_val(skb, &key->icmp.code,
2615 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
2616 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
2617 sizeof(key->icmp.code))))
2618 goto nla_put_failure;
99d31326
SH		 2619 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
2620 key->basic.n_proto == htons(ETH_P_RARP)) &&
2621 (fl_dump_key_val(skb, &key->arp.sip,
2622 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
2623 TCA_FLOWER_KEY_ARP_SIP_MASK,
2624 sizeof(key->arp.sip)) ||
2625 fl_dump_key_val(skb, &key->arp.tip,
2626 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
2627 TCA_FLOWER_KEY_ARP_TIP_MASK,
2628 sizeof(key->arp.tip)) ||
2629 fl_dump_key_val(skb, &key->arp.op,
2630 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
2631 TCA_FLOWER_KEY_ARP_OP_MASK,
2632 sizeof(key->arp.op)) ||
2633 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
2634 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
2635 sizeof(key->arp.sha)) ||
2636 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
2637 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
2638 sizeof(key->arp.tha))))
2639 goto nla_put_failure;
77b9900e 2640
5c72299f
AN		 2641 if ((key->basic.ip_proto == IPPROTO_TCP ||
2642 key->basic.ip_proto == IPPROTO_UDP ||
2643 key->basic.ip_proto == IPPROTO_SCTP) &&
2644 fl_dump_key_port_range(skb, key, mask))
2645 goto nla_put_failure;
2646
bc3103f1
AV		 2647 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
2648 (fl_dump_key_val(skb, &key->enc_ipv4.src,
2649 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
2650 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
2651 sizeof(key->enc_ipv4.src)) ||
2652 fl_dump_key_val(skb, &key->enc_ipv4.dst,
2653 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
2654 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
2655 sizeof(key->enc_ipv4.dst))))
2656 goto nla_put_failure;
2657 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
2658 (fl_dump_key_val(skb, &key->enc_ipv6.src,
2659 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
2660 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
2661 sizeof(key->enc_ipv6.src)) ||
2662 fl_dump_key_val(skb, &key->enc_ipv6.dst,
2663 TCA_FLOWER_KEY_ENC_IPV6_DST,
2664 &mask->enc_ipv6.dst,
2665 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
2666 sizeof(key->enc_ipv6.dst))))
2667 goto nla_put_failure;
2668
2669 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 2670 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
f4d997fd
HHZ		 2671 sizeof(key->enc_key_id)) ||
2672 fl_dump_key_val(skb, &key->enc_tp.src,
2673 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
2674 &mask->enc_tp.src,
2675 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
2676 sizeof(key->enc_tp.src)) ||
2677 fl_dump_key_val(skb, &key->enc_tp.dst,
2678 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
2679 &mask->enc_tp.dst,
2680 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
0e2c17b6 2681 sizeof(key->enc_tp.dst)) ||
0a6e7778
PJV		 2682 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
2683 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
bc3103f1
AV		 2684 goto nla_put_failure;
2685
e0ace68a
PB		 2686 if (fl_dump_key_ct(skb, &key->ct, &mask->ct))
2687 goto nla_put_failure;
2688
faa3ffce
OG		 2689 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
2690 goto nla_put_failure;
2691
f5749081
JP		 2692 return 0;
2693
2694nla_put_failure:
2695 return -EMSGSIZE;
2696}
2697
2698static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
12db03b6 2699 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
f5749081
JP		 2700{
2701 struct cls_fl_filter *f = fh;
2702 struct nlattr *nest;
2703 struct fl_flow_key *key, *mask;
3d81e711 2704 bool skip_hw;
f5749081
JP		 2705
2706 if (!f)
2707 return skb->len;
2708
2709 t->tcm_handle = f->handle;
2710
ae0be8de 2711 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
f5749081
JP		 2712 if (!nest)
2713 goto nla_put_failure;
2714
3d81e711
VB		 2715 spin_lock(&tp->lock);
2716
f5749081
JP		 2717 if (f->res.classid &&
2718 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
3d81e711 2719 goto nla_put_failure_locked;
f5749081
JP		 2720
2721 key = &f->key;
2722 mask = &f->mask->key;
3d81e711 2723 skip_hw = tc_skip_hw(f->flags);
f5749081
JP		 2724
2725 if (fl_dump_key(skb, net, key, mask))
3d81e711 2726 goto nla_put_failure_locked;
f5749081 2727
749e6720 2728 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3d81e711
VB		 2729 goto nla_put_failure_locked;
2730
2731 spin_unlock(&tp->lock);
2732
2733 if (!skip_hw)
c24e43d8 2734 fl_hw_update_stats(tp, f, rtnl_held);
e69985c6 2735
86c55361
VB		 2736 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
2737 goto nla_put_failure;
2738
77b9900e
JP		 2739 if (tcf_exts_dump(skb, &f->exts))
2740 goto nla_put_failure;
2741
2742 nla_nest_end(skb, nest);
2743
2744 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
2745 goto nla_put_failure;
2746
2747 return skb->len;
2748
3d81e711
VB		 2749nla_put_failure_locked:
2750 spin_unlock(&tp->lock);
77b9900e
JP		 2751nla_put_failure:
2752 nla_nest_cancel(skb, nest);
2753 return -1;
2754}
2755
b95ec7eb
JP		 2756static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
2757{
2758 struct fl_flow_tmplt *tmplt = tmplt_priv;
2759 struct fl_flow_key *key, *mask;
2760 struct nlattr *nest;
2761
ae0be8de 2762 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
b95ec7eb
JP		 2763 if (!nest)
2764 goto nla_put_failure;
2765
2766 key = &tmplt->dummy_key;
2767 mask = &tmplt->mask;
2768
2769 if (fl_dump_key(skb, net, key, mask))
2770 goto nla_put_failure;
2771
2772 nla_nest_end(skb, nest);
2773
2774 return skb->len;
2775
2776nla_put_failure:
2777 nla_nest_cancel(skb, nest);
2778 return -EMSGSIZE;
2779}
2780
2e24cd75
CW		 2781static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q,
2782 unsigned long base)
07d79fc7
CW		 2783{
2784 struct cls_fl_filter *f = fh;
2785
2e24cd75
CW		 2786 if (f && f->res.classid == classid) {
2787 if (cl)
2788 __tcf_bind_filter(q, &f->res, base);
2789 else
2790 __tcf_unbind_filter(q, &f->res);
2791 }
07d79fc7
CW		 2792}
2793
a5b72a08
DC		 2794static bool fl_delete_empty(struct tcf_proto *tp)
2795{
2796 struct cls_fl_head *head = fl_head_dereference(tp);
2797
2798 spin_lock(&tp->lock);
2799 tp->deleting = idr_is_empty(&head->handle_idr);
2800 spin_unlock(&tp->lock);
2801
2802 return tp->deleting;
2803}
2804
77b9900e
JP		 2805static struct tcf_proto_ops cls_fl_ops __read_mostly = {
2806 .kind = "flower",
2807 .classify = fl_classify,
2808 .init = fl_init,
2809 .destroy = fl_destroy,
2810 .get = fl_get,
06177558 2811 .put = fl_put,
77b9900e
JP		 2812 .change = fl_change,
2813 .delete = fl_delete,
a5b72a08 2814 .delete_empty = fl_delete_empty,
77b9900e 2815 .walk = fl_walk,
31533cba 2816 .reoffload = fl_reoffload,
a449a3e7
VB		 2817 .hw_add = fl_hw_add,
2818 .hw_del = fl_hw_del,
77b9900e 2819 .dump = fl_dump,
07d79fc7 2820 .bind_class = fl_bind_class,
b95ec7eb
JP		 2821 .tmplt_create = fl_tmplt_create,
2822 .tmplt_destroy = fl_tmplt_destroy,
2823 .tmplt_dump = fl_tmplt_dump,
77b9900e 2824 .owner = THIS_MODULE,
92149190 2825 .flags = TCF_PROTO_OPS_DOIT_UNLOCKED,
77b9900e
JP		 2826};
2827
2828static int __init cls_fl_init(void)
2829{
2830 return register_tcf_proto_ops(&cls_fl_ops);
2831}
2832
2833static void __exit cls_fl_exit(void)
2834{
2835 unregister_tcf_proto_ops(&cls_fl_ops);
2836}
2837
2838module_init(cls_fl_init);
2839module_exit(cls_fl_exit);
2840
2841MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
2842MODULE_DESCRIPTION("Flower classifier");
2843MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)