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net/sched: avoid indirect act functions on retpoline kernels
[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>
5008750e 19#include <linux/ppp_defs.h>
77b9900e
JP		 20
21#include <net/sch_generic.h>
22#include <net/pkt_cls.h>
ec624fe7 23#include <net/pkt_sched.h>
77b9900e
JP		 24#include <net/ip.h>
25#include <net/flow_dissector.h>
0a6e7778 26#include <net/geneve.h>
d8f9dfae 27#include <net/vxlan.h>
79b1011c 28#include <net/erspan.h>
e3acda7a 29#include <net/gtp.h>
77b9900e 30
bc3103f1
AV		 31#include <net/dst.h>
32#include <net/dst_metadata.h>
33
e0ace68a
PB		 34#include <uapi/linux/netfilter/nf_conntrack_common.h>
35
1bcc51ac 36#define TCA_FLOWER_KEY_CT_FLAGS_MAX \
37 ((__TCA_FLOWER_KEY_CT_FLAGS_MAX - 1) << 1)
38#define TCA_FLOWER_KEY_CT_FLAGS_MASK \
39 (TCA_FLOWER_KEY_CT_FLAGS_MAX - 1)
40
77b9900e 41struct fl_flow_key {
8212ed77 42 struct flow_dissector_key_meta meta;
42aecaa9 43 struct flow_dissector_key_control control;
bc3103f1 44 struct flow_dissector_key_control enc_control;
77b9900e
JP		 45 struct flow_dissector_key_basic basic;
46 struct flow_dissector_key_eth_addrs eth;
9399ae9a 47 struct flow_dissector_key_vlan vlan;
d64efd09 48 struct flow_dissector_key_vlan cvlan;
77b9900e 49 union {
c3f83241 50 struct flow_dissector_key_ipv4_addrs ipv4;
77b9900e
JP		 51 struct flow_dissector_key_ipv6_addrs ipv6;
52 };
53 struct flow_dissector_key_ports tp;
7b684884 54 struct flow_dissector_key_icmp icmp;
99d31326 55 struct flow_dissector_key_arp arp;
bc3103f1
AV		 56 struct flow_dissector_key_keyid enc_key_id;
57 union {
58 struct flow_dissector_key_ipv4_addrs enc_ipv4;
59 struct flow_dissector_key_ipv6_addrs enc_ipv6;
60 };
f4d997fd 61 struct flow_dissector_key_ports enc_tp;
a577d8f7 62 struct flow_dissector_key_mpls mpls;
fdfc7dd6 63 struct flow_dissector_key_tcp tcp;
4d80cc0a 64 struct flow_dissector_key_ip ip;
0e2c17b6 65 struct flow_dissector_key_ip enc_ip;
0a6e7778 66 struct flow_dissector_key_enc_opts enc_opts;
83d85bb0 67 struct flow_dissector_key_ports_range tp_range;
e0ace68a 68 struct flow_dissector_key_ct ct;
5923b8f7 69 struct flow_dissector_key_hash hash;
b4000312 70 struct flow_dissector_key_num_of_vlans num_of_vlans;
5008750e 71 struct flow_dissector_key_pppoe pppoe;
8b189ea0 72 struct flow_dissector_key_l2tpv3 l2tpv3;
77b9900e
JP		 73} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
74
75struct fl_flow_mask_range {
76 unsigned short int start;
77 unsigned short int end;
78};
79
80struct fl_flow_mask {
81 struct fl_flow_key key;
82 struct fl_flow_mask_range range;
5c72299f 83 u32 flags;
05cd271f
PB		 84 struct rhash_head ht_node;
85 struct rhashtable ht;
86 struct rhashtable_params filter_ht_params;
87 struct flow_dissector dissector;
88 struct list_head filters;
44a5cd43 89 struct rcu_work rwork;
05cd271f 90 struct list_head list;
f48ef4d5 91 refcount_t refcnt;
77b9900e
JP		 92};
93
b95ec7eb
JP		 94struct fl_flow_tmplt {
95 struct fl_flow_key dummy_key;
96 struct fl_flow_key mask;
97 struct flow_dissector dissector;
98 struct tcf_chain *chain;
99};
100
77b9900e
JP		 101struct cls_fl_head {
102 struct rhashtable ht;
259e60f9 103 spinlock_t masks_lock; /* Protect masks list */
05cd271f 104 struct list_head masks;
c049d56e 105 struct list_head hw_filters;
aaa908ff 106 struct rcu_work rwork;
c15ab236 107 struct idr handle_idr;
77b9900e
JP		 108};
109
110struct cls_fl_filter {
05cd271f 111 struct fl_flow_mask *mask;
77b9900e
JP		 112 struct rhash_head ht_node;
113 struct fl_flow_key mkey;
114 struct tcf_exts exts;
115 struct tcf_result res;
116 struct fl_flow_key key;
117 struct list_head list;
c049d56e 118 struct list_head hw_list;
77b9900e 119 u32 handle;
e69985c6 120 u32 flags;
86c55361 121 u32 in_hw_count;
aaa908ff 122 struct rcu_work rwork;
7091d8c7 123 struct net_device *hw_dev;
06177558
VB		 124 /* Flower classifier is unlocked, which means that its reference counter
125 * can be changed concurrently without any kind of external
126 * synchronization. Use atomic reference counter to be concurrency-safe.
127 */
128 refcount_t refcnt;
b2552b8c 129 bool deleted;
77b9900e
JP		 130};
131
05cd271f
PB		 132static const struct rhashtable_params mask_ht_params = {
133 .key_offset = offsetof(struct fl_flow_mask, key),
134 .key_len = sizeof(struct fl_flow_key),
135 .head_offset = offsetof(struct fl_flow_mask, ht_node),
136 .automatic_shrinking = true,
137};
138
77b9900e
JP		 139static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
140{
141 return mask->range.end - mask->range.start;
142}
143
144static void fl_mask_update_range(struct fl_flow_mask *mask)
145{
146 const u8 *bytes = (const u8 *) &mask->key;
147 size_t size = sizeof(mask->key);
05cd271f 148 size_t i, first = 0, last;
77b9900e 149
05cd271f
PB		 150 for (i = 0; i < size; i++) {
151 if (bytes[i]) {
152 first = i;
153 break;
154 }
155 }
156 last = first;
157 for (i = size - 1; i != first; i--) {
77b9900e 158 if (bytes[i]) {
77b9900e 159 last = i;
05cd271f 160 break;
77b9900e
JP		 161 }
162 }
163 mask->range.start = rounddown(first, sizeof(long));
164 mask->range.end = roundup(last + 1, sizeof(long));
165}
166
167static void *fl_key_get_start(struct fl_flow_key *key,
168 const struct fl_flow_mask *mask)
169{
170 return (u8 *) key + mask->range.start;
171}
172
173static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
174 struct fl_flow_mask *mask)
175{
176 const long *lkey = fl_key_get_start(key, mask);
177 const long *lmask = fl_key_get_start(&mask->key, mask);
178 long *lmkey = fl_key_get_start(mkey, mask);
179 int i;
180
181 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
182 *lmkey++ = *lkey++ & *lmask++;
183}
184
b95ec7eb
JP		 185static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
186 struct fl_flow_mask *mask)
187{
188 const long *lmask = fl_key_get_start(&mask->key, mask);
189 const long *ltmplt;
190 int i;
191
192 if (!tmplt)
193 return true;
194 ltmplt = fl_key_get_start(&tmplt->mask, mask);
195 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
196 if (~*ltmplt++ & *lmask++)
197 return false;
198 }
199 return true;
200}
201
77b9900e
JP		 202static void fl_clear_masked_range(struct fl_flow_key *key,
203 struct fl_flow_mask *mask)
204{
205 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
206}
207
5c72299f
AN		 208static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter,
209 struct fl_flow_key *key,
210 struct fl_flow_key *mkey)
211{
6215afcb 212 u16 min_mask, max_mask, min_val, max_val;
5c72299f 213
6215afcb
VO		 214 min_mask = ntohs(filter->mask->key.tp_range.tp_min.dst);
215 max_mask = ntohs(filter->mask->key.tp_range.tp_max.dst);
216 min_val = ntohs(filter->key.tp_range.tp_min.dst);
217 max_val = ntohs(filter->key.tp_range.tp_max.dst);
5c72299f
AN		 218
219 if (min_mask && max_mask) {
6215afcb
VO		 220 if (ntohs(key->tp_range.tp.dst) < min_val ||
221 ntohs(key->tp_range.tp.dst) > max_val)
5c72299f
AN		 222 return false;
223
224 /* skb does not have min and max values */
8ffb055b
YK		 225 mkey->tp_range.tp_min.dst = filter->mkey.tp_range.tp_min.dst;
226 mkey->tp_range.tp_max.dst = filter->mkey.tp_range.tp_max.dst;
5c72299f
AN		 227 }
228 return true;
229}
230
231static bool fl_range_port_src_cmp(struct cls_fl_filter *filter,
232 struct fl_flow_key *key,
233 struct fl_flow_key *mkey)
234{
6215afcb 235 u16 min_mask, max_mask, min_val, max_val;
5c72299f 236
6215afcb
VO		 237 min_mask = ntohs(filter->mask->key.tp_range.tp_min.src);
238 max_mask = ntohs(filter->mask->key.tp_range.tp_max.src);
239 min_val = ntohs(filter->key.tp_range.tp_min.src);
240 max_val = ntohs(filter->key.tp_range.tp_max.src);
5c72299f
AN		 241
242 if (min_mask && max_mask) {
6215afcb
VO		 243 if (ntohs(key->tp_range.tp.src) < min_val ||
244 ntohs(key->tp_range.tp.src) > max_val)
5c72299f
AN		 245 return false;
246
247 /* skb does not have min and max values */
8ffb055b
YK		 248 mkey->tp_range.tp_min.src = filter->mkey.tp_range.tp_min.src;
249 mkey->tp_range.tp_max.src = filter->mkey.tp_range.tp_max.src;
5c72299f
AN		 250 }
251 return true;
252}
253
254static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask,
255 struct fl_flow_key *mkey)
a3308d8f 256{
05cd271f
PB		 257 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
258 mask->filter_ht_params);
a3308d8f
PB		 259}
260
5c72299f
AN		 261static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask,
262 struct fl_flow_key *mkey,
263 struct fl_flow_key *key)
264{
265 struct cls_fl_filter *filter, *f;
266
267 list_for_each_entry_rcu(filter, &mask->filters, list) {
268 if (!fl_range_port_dst_cmp(filter, key, mkey))
269 continue;
270
271 if (!fl_range_port_src_cmp(filter, key, mkey))
272 continue;
273
274 f = __fl_lookup(mask, mkey);
275 if (f)
276 return f;
277 }
278 return NULL;
279}
280
0af413bd
AB		 281static noinline_for_stack
282struct cls_fl_filter *fl_mask_lookup(struct fl_flow_mask *mask, struct fl_flow_key *key)
5c72299f 283{
0af413bd
AB		 284 struct fl_flow_key mkey;
285
286 fl_set_masked_key(&mkey, key, mask);
5c72299f 287 if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE))
0af413bd 288 return fl_lookup_range(mask, &mkey, key);
5c72299f 289
0af413bd 290 return __fl_lookup(mask, &mkey);
5c72299f
AN		 291}
292
e0ace68a
PB		 293static u16 fl_ct_info_to_flower_map[] = {
294 [IP_CT_ESTABLISHED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
295 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
296 [IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
297 TCA_FLOWER_KEY_CT_FLAGS_RELATED,
298 [IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
8c85d18c
PB		 299 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED |
300 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
e0ace68a 301 [IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
8c85d18c
PB		 302 TCA_FLOWER_KEY_CT_FLAGS_RELATED |
303 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
e0ace68a
PB		 304 [IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
305 TCA_FLOWER_KEY_CT_FLAGS_NEW,
306};
307
77b9900e
JP		 308static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
309 struct tcf_result *res)
310{
311 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
ec624fe7 312 bool post_ct = tc_skb_cb(skb)->post_ct;
38495958 313 u16 zone = tc_skb_cb(skb)->zone;
e0ace68a
PB		 314 struct fl_flow_key skb_key;
315 struct fl_flow_mask *mask;
316 struct cls_fl_filter *f;
77b9900e 317
05cd271f 318 list_for_each_entry_rcu(mask, &head->masks, list) {
8a9093c7 319 flow_dissector_init_keys(&skb_key.control, &skb_key.basic);
05cd271f 320 fl_clear_masked_range(&skb_key, mask);
bc3103f1 321
8212ed77 322 skb_flow_dissect_meta(skb, &mask->dissector, &skb_key);
05cd271f
PB		 323 /* skb_flow_dissect() does not set n_proto in case an unknown
324 * protocol, so do it rather here.
325 */
d7bf2ebe 326 skb_key.basic.n_proto = skb_protocol(skb, false);
05cd271f 327 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
e0ace68a
PB		 328 skb_flow_dissect_ct(skb, &mask->dissector, &skb_key,
329 fl_ct_info_to_flower_map,
7baf2429 330 ARRAY_SIZE(fl_ct_info_to_flower_map),
38495958 331 post_ct, zone);
5923b8f7 332 skb_flow_dissect_hash(skb, &mask->dissector, &skb_key);
6de6e46d
YK		 333 skb_flow_dissect(skb, &mask->dissector, &skb_key,
334 FLOW_DISSECTOR_F_STOP_BEFORE_ENCAP);
77b9900e 335
0af413bd 336 f = fl_mask_lookup(mask, &skb_key);
05cd271f
PB		 337 if (f && !tc_skip_sw(f->flags)) {
338 *res = f->res;
339 return tcf_exts_exec(skb, &f->exts, res);
340 }
77b9900e
JP		 341 }
342 return -1;
343}
344
345static int fl_init(struct tcf_proto *tp)
346{
347 struct cls_fl_head *head;
348
349 head = kzalloc(sizeof(*head), GFP_KERNEL);
350 if (!head)
351 return -ENOBUFS;
352
259e60f9 353 spin_lock_init(&head->masks_lock);
05cd271f 354 INIT_LIST_HEAD_RCU(&head->masks);
c049d56e 355 INIT_LIST_HEAD(&head->hw_filters);
77b9900e 356 rcu_assign_pointer(tp->root, head);
c15ab236 357 idr_init(&head->handle_idr);
77b9900e 358
05cd271f
PB		 359 return rhashtable_init(&head->ht, &mask_ht_params);
360}
361
99815f50 362static void fl_mask_free(struct fl_flow_mask *mask, bool mask_init_done)
44a5cd43 363{
99815f50
VB		 364 /* temporary masks don't have their filters list and ht initialized */
365 if (mask_init_done) {
366 WARN_ON(!list_empty(&mask->filters));
367 rhashtable_destroy(&mask->ht);
368 }
44a5cd43
PA		 369 kfree(mask);
370}
371
372static void fl_mask_free_work(struct work_struct *work)
373{
374 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
375 struct fl_flow_mask, rwork);
376
99815f50
VB		 377 fl_mask_free(mask, true);
378}
379
380static void fl_uninit_mask_free_work(struct work_struct *work)
381{
382 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
383 struct fl_flow_mask, rwork);
384
385 fl_mask_free(mask, false);
44a5cd43
PA		 386}
387
9994677c 388static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask)
05cd271f 389{
f48ef4d5 390 if (!refcount_dec_and_test(&mask->refcnt))
05cd271f
PB		 391 return false;
392
393 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
259e60f9
VB		 394
395 spin_lock(&head->masks_lock);
05cd271f 396 list_del_rcu(&mask->list);
259e60f9
VB		 397 spin_unlock(&head->masks_lock);
398
9994677c 399 tcf_queue_work(&mask->rwork, fl_mask_free_work);
05cd271f
PB		 400
401 return true;
77b9900e
JP		 402}
403
c049d56e
VB		 404static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp)
405{
406 /* Flower classifier only changes root pointer during init and destroy.
407 * Users must obtain reference to tcf_proto instance before calling its
408 * API, so tp->root pointer is protected from concurrent call to
409 * fl_destroy() by reference counting.
410 */
411 return rcu_dereference_raw(tp->root);
412}
413
0dadc117
CW		 414static void __fl_destroy_filter(struct cls_fl_filter *f)
415{
416 tcf_exts_destroy(&f->exts);
417 tcf_exts_put_net(&f->exts);
418 kfree(f);
419}
420
0552c8af 421static void fl_destroy_filter_work(struct work_struct *work)
77b9900e 422{
aaa908ff
CW		 423 struct cls_fl_filter *f = container_of(to_rcu_work(work),
424 struct cls_fl_filter, rwork);
77b9900e 425
0dadc117 426 __fl_destroy_filter(f);
0552c8af
CW		 427}
428
1b0f8037 429static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
c24e43d8 430 bool rtnl_held, struct netlink_ext_ack *extack)
5b33f488 431{
208c0f4b 432 struct tcf_block *block = tp->chain->block;
f9e30088 433 struct flow_cls_offload cls_flower = {};
5b33f488 434
d6787147 435 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
f9e30088 436 cls_flower.command = FLOW_CLS_DESTROY;
de4784ca 437 cls_flower.cookie = (unsigned long) f;
5b33f488 438
40119211 439 tc_setup_cb_destroy(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, false,
918190f5 440 &f->flags, &f->in_hw_count, rtnl_held);
c24e43d8 441
5b33f488
AV		 442}
443
e8eb36cd 444static int fl_hw_replace_filter(struct tcf_proto *tp,
c24e43d8 445 struct cls_fl_filter *f, bool rtnl_held,
41002038 446 struct netlink_ext_ack *extack)
5b33f488 447{
208c0f4b 448 struct tcf_block *block = tp->chain->block;
f9e30088 449 struct flow_cls_offload cls_flower = {};
717503b9 450 bool skip_sw = tc_skip_sw(f->flags);
c24e43d8
VB		 451 int err = 0;
452
e3ab786b 453 cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts));
918190f5
VB		 454 if (!cls_flower.rule)
455 return -ENOMEM;
8f256622 456
d6787147 457 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
f9e30088 458 cls_flower.command = FLOW_CLS_REPLACE;
de4784ca 459 cls_flower.cookie = (unsigned long) f;
8f256622
PNA		 460 cls_flower.rule->match.dissector = &f->mask->dissector;
461 cls_flower.rule->match.mask = &f->mask->key;
462 cls_flower.rule->match.key = &f->mkey;
384c181e 463 cls_flower.classid = f->res.classid;
5b33f488 464
c2ccf84e
IS		 465 err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts,
466 cls_flower.common.extack);
3a7b6861
PNA		 467 if (err) {
468 kfree(cls_flower.rule);
11c95317
IS		 469
470 return skip_sw ? err : 0;
3a7b6861
PNA		 471 }
472
40119211 473 err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower,
918190f5 474 skip_sw, &f->flags, &f->in_hw_count, rtnl_held);
9c1c0e12 475 tc_cleanup_offload_action(&cls_flower.rule->action);
8f256622
PNA		 476 kfree(cls_flower.rule);
477
40119211 478 if (err) {
918190f5
VB		 479 fl_hw_destroy_filter(tp, f, rtnl_held, NULL);
480 return err;
717503b9
JP		 481 }
482
918190f5
VB		 483 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
484 return -EINVAL;
c24e43d8 485
918190f5 486 return 0;
5b33f488
AV		 487}
488
c24e43d8
VB		 489static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f,
490 bool rtnl_held)
10cbc684 491{
208c0f4b 492 struct tcf_block *block = tp->chain->block;
f9e30088 493 struct flow_cls_offload cls_flower = {};
10cbc684 494
d6787147 495 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
f9e30088 496 cls_flower.command = FLOW_CLS_STATS;
de4784ca 497 cls_flower.cookie = (unsigned long) f;
384c181e 498 cls_flower.classid = f->res.classid;
10cbc684 499
918190f5
VB		 500 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false,
501 rtnl_held);
3b1903ef 502
bcd64368
BZ		 503 tcf_exts_hw_stats_update(&f->exts, cls_flower.stats.bytes,
504 cls_flower.stats.pkts,
505 cls_flower.stats.drops,
506 cls_flower.stats.lastused,
507 cls_flower.stats.used_hw_stats,
508 cls_flower.stats.used_hw_stats_valid);
10cbc684
AV		 509}
510
06177558
VB		 511static void __fl_put(struct cls_fl_filter *f)
512{
513 if (!refcount_dec_and_test(&f->refcnt))
514 return;
515
516 if (tcf_exts_get_net(&f->exts))
517 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
518 else
519 __fl_destroy_filter(f);
520}
521
522static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle)
523{
524 struct cls_fl_filter *f;
525
526 rcu_read_lock();
527 f = idr_find(&head->handle_idr, handle);
528 if (f && !refcount_inc_not_zero(&f->refcnt))
529 f = NULL;
530 rcu_read_unlock();
531
532 return f;
533}
534
b2552b8c 535static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
c24e43d8
VB		 536 bool *last, bool rtnl_held,
537 struct netlink_ext_ack *extack)
13fa876e 538{
e474619a 539 struct cls_fl_head *head = fl_head_dereference(tp);
c15ab236 540
b2552b8c
VB		 541 *last = false;
542
3d81e711
VB		 543 spin_lock(&tp->lock);
544 if (f->deleted) {
545 spin_unlock(&tp->lock);
b2552b8c 546 return -ENOENT;
3d81e711 547 }
b2552b8c
VB		 548
549 f->deleted = true;
550 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
551 f->mask->filter_ht_params);
9c160941 552 idr_remove(&head->handle_idr, f->handle);
13fa876e 553 list_del_rcu(&f->list);
3d81e711
VB		 554 spin_unlock(&tp->lock);
555
9994677c 556 *last = fl_mask_put(head, f->mask);
79685219 557 if (!tc_skip_hw(f->flags))
c24e43d8 558 fl_hw_destroy_filter(tp, f, rtnl_held, extack);
13fa876e 559 tcf_unbind_filter(tp, &f->res);
06177558 560 __fl_put(f);
05cd271f 561
b2552b8c 562 return 0;
13fa876e
RD		 563}
564
d9363774
DB		 565static void fl_destroy_sleepable(struct work_struct *work)
566{
aaa908ff
CW		 567 struct cls_fl_head *head = container_of(to_rcu_work(work),
568 struct cls_fl_head,
569 rwork);
de9dc650
PB		 570
571 rhashtable_destroy(&head->ht);
d9363774
DB		 572 kfree(head);
573 module_put(THIS_MODULE);
574}
575
12db03b6
VB		 576static void fl_destroy(struct tcf_proto *tp, bool rtnl_held,
577 struct netlink_ext_ack *extack)
77b9900e 578{
e474619a 579 struct cls_fl_head *head = fl_head_dereference(tp);
05cd271f 580 struct fl_flow_mask *mask, *next_mask;
77b9900e 581 struct cls_fl_filter *f, *next;
b2552b8c 582 bool last;
77b9900e 583
05cd271f
PB		 584 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
585 list_for_each_entry_safe(f, next, &mask->filters, list) {
c24e43d8 586 __fl_delete(tp, f, &last, rtnl_held, extack);
b2552b8c 587 if (last)
05cd271f
PB		 588 break;
589 }
590 }
c15ab236 591 idr_destroy(&head->handle_idr);
d9363774
DB		 592
593 __module_get(THIS_MODULE);
aaa908ff 594 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
77b9900e
JP		 595}
596
06177558
VB		 597static void fl_put(struct tcf_proto *tp, void *arg)
598{
599 struct cls_fl_filter *f = arg;
600
601 __fl_put(f);
602}
603
8113c095 604static void *fl_get(struct tcf_proto *tp, u32 handle)
77b9900e 605{
e474619a 606 struct cls_fl_head *head = fl_head_dereference(tp);
77b9900e 607
06177558 608 return __fl_get(head, handle);
77b9900e
JP		 609}
610
611static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
612 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
613 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
614 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
615 .len = IFNAMSIZ },
616 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
617 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
618 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
619 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
620 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
621 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
622 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
623 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
624 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
625 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
626 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
627 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
628 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
629 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
630 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
631 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
b175c3a4
JHS		 632 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
633 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
9399ae9a
HHZ		 634 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
635 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
636 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
bc3103f1
AV		 637 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
638 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
639 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
640 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
641 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
642 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
643 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
644 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
645 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
aa72d708
OG		 646 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
647 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
648 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
649 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
5976c5f4
SH		 650 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
651 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
652 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
653 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
f4d997fd
HHZ		 654 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
655 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
656 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
657 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
faa3ffce
OG		 658 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
659 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
7b684884
SH		 660 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
661 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
662 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
663 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
664 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
665 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
666 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
667 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
99d31326
SH		 668 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
669 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
670 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
671 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
672 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
673 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
674 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
675 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
676 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
677 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
a577d8f7
BL		 678 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
679 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
680 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
681 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
61aec25a 682 [TCA_FLOWER_KEY_MPLS_OPTS] = { .type = NLA_NESTED },
fdfc7dd6
JP		 683 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
684 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
4d80cc0a
OG		 685 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
686 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
687 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
688 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
d64efd09
JL		 689 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
690 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
691 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
0e2c17b6
OG		 692 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
693 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
694 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
695 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
0a6e7778
PJV		 696 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
697 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
1bcc51ac 698 [TCA_FLOWER_KEY_CT_STATE] =
699 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
700 [TCA_FLOWER_KEY_CT_STATE_MASK] =
701 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
e0ace68a
PB		 702 [TCA_FLOWER_KEY_CT_ZONE] = { .type = NLA_U16 },
703 [TCA_FLOWER_KEY_CT_ZONE_MASK] = { .type = NLA_U16 },
704 [TCA_FLOWER_KEY_CT_MARK] = { .type = NLA_U32 },
705 [TCA_FLOWER_KEY_CT_MARK_MASK] = { .type = NLA_U32 },
706 [TCA_FLOWER_KEY_CT_LABELS] = { .type = NLA_BINARY,
707 .len = 128 / BITS_PER_BYTE },
708 [TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
709 .len = 128 / BITS_PER_BYTE },
e2debf08 710 [TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
5923b8f7
AL		 711 [TCA_FLOWER_KEY_HASH] = { .type = NLA_U32 },
712 [TCA_FLOWER_KEY_HASH_MASK] = { .type = NLA_U32 },
b4000312 713 [TCA_FLOWER_KEY_NUM_OF_VLANS] = { .type = NLA_U8 },
5008750e
WD		 714 [TCA_FLOWER_KEY_PPPOE_SID] = { .type = NLA_U16 },
715 [TCA_FLOWER_KEY_PPP_PROTO] = { .type = NLA_U16 },
8b189ea0 716 [TCA_FLOWER_KEY_L2TPV3_SID] = { .type = NLA_U32 },
5923b8f7 717
0a6e7778
PJV		 718};
719
720static const struct nla_policy
721enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
d8f9dfae
XL		 722 [TCA_FLOWER_KEY_ENC_OPTS_UNSPEC] = {
723 .strict_start_type = TCA_FLOWER_KEY_ENC_OPTS_VXLAN },
0a6e7778 724 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
d8f9dfae 725 [TCA_FLOWER_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED },
79b1011c 726 [TCA_FLOWER_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED },
e3acda7a 727 [TCA_FLOWER_KEY_ENC_OPTS_GTP] = { .type = NLA_NESTED },
0a6e7778
PJV		 728};
729
730static const struct nla_policy
731geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
732 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
733 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
734 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
735 .len = 128 },
77b9900e
JP		 736};
737
d8f9dfae
XL		 738static const struct nla_policy
739vxlan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1] = {
740 [TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 },
741};
742
79b1011c
XL		 743static const struct nla_policy
744erspan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1] = {
745 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 },
746 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 },
747 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 },
748 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 },
749};
750
e3acda7a
WD		 751static const struct nla_policy
752gtp_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GTP_MAX + 1] = {
753 [TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE] = { .type = NLA_U8 },
754 [TCA_FLOWER_KEY_ENC_OPT_GTP_QFI] = { .type = NLA_U8 },
755};
756
61aec25a
GN		 757static const struct nla_policy
758mpls_stack_entry_policy[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1] = {
759 [TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH] = { .type = NLA_U8 },
760 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL] = { .type = NLA_U8 },
761 [TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS] = { .type = NLA_U8 },
762 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TC] = { .type = NLA_U8 },
763 [TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL] = { .type = NLA_U32 },
764};
765
77b9900e
JP		 766static void fl_set_key_val(struct nlattr **tb,
767 void *val, int val_type,
768 void *mask, int mask_type, int len)
769{
770 if (!tb[val_type])
771 return;
e0ace68a 772 nla_memcpy(val, tb[val_type], len);
77b9900e
JP		 773 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
774 memset(mask, 0xff, len);
775 else
e0ace68a 776 nla_memcpy(mask, tb[mask_type], len);
77b9900e
JP		 777}
778
5c72299f 779static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
bd7d4c12
GN		 780 struct fl_flow_key *mask,
781 struct netlink_ext_ack *extack)
5c72299f 782{
8ffb055b
YK		 783 fl_set_key_val(tb, &key->tp_range.tp_min.dst,
784 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_range.tp_min.dst,
785 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.dst));
786 fl_set_key_val(tb, &key->tp_range.tp_max.dst,
787 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_range.tp_max.dst,
788 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.dst));
789 fl_set_key_val(tb, &key->tp_range.tp_min.src,
790 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_range.tp_min.src,
791 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.src));
792 fl_set_key_val(tb, &key->tp_range.tp_max.src,
793 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_range.tp_max.src,
794 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.src));
795
bd7d4c12 796 if (mask->tp_range.tp_min.dst && mask->tp_range.tp_max.dst &&
6215afcb
VO		 797 ntohs(key->tp_range.tp_max.dst) <=
798 ntohs(key->tp_range.tp_min.dst)) {
bd7d4c12
GN		 799 NL_SET_ERR_MSG_ATTR(extack,
800 tb[TCA_FLOWER_KEY_PORT_DST_MIN],
801 "Invalid destination port range (min must be strictly smaller than max)");
5c72299f 802 return -EINVAL;
bd7d4c12
GN		 803 }
804 if (mask->tp_range.tp_min.src && mask->tp_range.tp_max.src &&
6215afcb
VO		 805 ntohs(key->tp_range.tp_max.src) <=
806 ntohs(key->tp_range.tp_min.src)) {
bd7d4c12
GN		 807 NL_SET_ERR_MSG_ATTR(extack,
808 tb[TCA_FLOWER_KEY_PORT_SRC_MIN],
809 "Invalid source port range (min must be strictly smaller than max)");
810 return -EINVAL;
811 }
5c72299f
AN		 812
813 return 0;
814}
815
61aec25a
GN		 816static int fl_set_key_mpls_lse(const struct nlattr *nla_lse,
817 struct flow_dissector_key_mpls *key_val,
818 struct flow_dissector_key_mpls *key_mask,
819 struct netlink_ext_ack *extack)
820{
821 struct nlattr *tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1];
822 struct flow_dissector_mpls_lse *lse_mask;
823 struct flow_dissector_mpls_lse *lse_val;
824 u8 lse_index;
825 u8 depth;
826 int err;
827
828 err = nla_parse_nested(tb, TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX, nla_lse,
829 mpls_stack_entry_policy, extack);
830 if (err < 0)
831 return err;
832
833 if (!tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]) {
834 NL_SET_ERR_MSG(extack, "Missing MPLS option \"depth\"");
835 return -EINVAL;
836 }
837
838 depth = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]);
839
840 /* LSE depth starts at 1, for consistency with terminology used by
841 * RFC 3031 (section 3.9), where depth 0 refers to unlabeled packets.
842 */
843 if (depth < 1 || depth > FLOW_DIS_MPLS_MAX) {
844 NL_SET_ERR_MSG_ATTR(extack,
845 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH],
846 "Invalid MPLS depth");
847 return -EINVAL;
848 }
849 lse_index = depth - 1;
850
851 dissector_set_mpls_lse(key_val, lse_index);
852 dissector_set_mpls_lse(key_mask, lse_index);
853
854 lse_val = &key_val->ls[lse_index];
855 lse_mask = &key_mask->ls[lse_index];
856
857 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]) {
858 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]);
859 lse_mask->mpls_ttl = MPLS_TTL_MASK;
860 }
861 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]) {
862 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]);
863
864 if (bos & ~MPLS_BOS_MASK) {
865 NL_SET_ERR_MSG_ATTR(extack,
866 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS],
867 "Bottom Of Stack (BOS) must be 0 or 1");
868 return -EINVAL;
869 }
870 lse_val->mpls_bos = bos;
871 lse_mask->mpls_bos = MPLS_BOS_MASK;
872 }
873 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]) {
874 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]);
875
876 if (tc & ~MPLS_TC_MASK) {
877 NL_SET_ERR_MSG_ATTR(extack,
878 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC],
879 "Traffic Class (TC) must be between 0 and 7");
880 return -EINVAL;
881 }
882 lse_val->mpls_tc = tc;
883 lse_mask->mpls_tc = MPLS_TC_MASK;
884 }
885 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]) {
886 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]);
887
888 if (label & ~MPLS_LABEL_MASK) {
889 NL_SET_ERR_MSG_ATTR(extack,
890 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL],
891 "Label must be between 0 and 1048575");
892 return -EINVAL;
893 }
894 lse_val->mpls_label = label;
895 lse_mask->mpls_label = MPLS_LABEL_MASK;
896 }
897
898 return 0;
899}
900
901static int fl_set_key_mpls_opts(const struct nlattr *nla_mpls_opts,
902 struct flow_dissector_key_mpls *key_val,
903 struct flow_dissector_key_mpls *key_mask,
904 struct netlink_ext_ack *extack)
905{
906 struct nlattr *nla_lse;
907 int rem;
908 int err;
909
910 if (!(nla_mpls_opts->nla_type & NLA_F_NESTED)) {
911 NL_SET_ERR_MSG_ATTR(extack, nla_mpls_opts,
912 "NLA_F_NESTED is missing");
913 return -EINVAL;
914 }
915
916 nla_for_each_nested(nla_lse, nla_mpls_opts, rem) {
917 if (nla_type(nla_lse) != TCA_FLOWER_KEY_MPLS_OPTS_LSE) {
918 NL_SET_ERR_MSG_ATTR(extack, nla_lse,
919 "Invalid MPLS option type");
920 return -EINVAL;
921 }
922
923 err = fl_set_key_mpls_lse(nla_lse, key_val, key_mask, extack);
924 if (err < 0)
925 return err;
926 }
927 if (rem) {
928 NL_SET_ERR_MSG(extack,
929 "Bytes leftover after parsing MPLS options");
930 return -EINVAL;
931 }
932
933 return 0;
934}
935
1a7fca63
BL		 936static int fl_set_key_mpls(struct nlattr **tb,
937 struct flow_dissector_key_mpls *key_val,
442f730e
GN		 938 struct flow_dissector_key_mpls *key_mask,
939 struct netlink_ext_ack *extack)
a577d8f7 940{
58cff782
GN		 941 struct flow_dissector_mpls_lse *lse_mask;
942 struct flow_dissector_mpls_lse *lse_val;
943
61aec25a
GN		 944 if (tb[TCA_FLOWER_KEY_MPLS_OPTS]) {
945 if (tb[TCA_FLOWER_KEY_MPLS_TTL] ||
946 tb[TCA_FLOWER_KEY_MPLS_BOS] ||
947 tb[TCA_FLOWER_KEY_MPLS_TC] ||
948 tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
949 NL_SET_ERR_MSG_ATTR(extack,
950 tb[TCA_FLOWER_KEY_MPLS_OPTS],
951 "MPLS label, Traffic Class, Bottom Of Stack and Time To Live must be encapsulated in the MPLS options attribute");
952 return -EBADMSG;
953 }
954
955 return fl_set_key_mpls_opts(tb[TCA_FLOWER_KEY_MPLS_OPTS],
956 key_val, key_mask, extack);
957 }
958
58cff782
GN		 959 lse_val = &key_val->ls[0];
960 lse_mask = &key_mask->ls[0];
961
a577d8f7 962 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
58cff782
GN		 963 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
964 lse_mask->mpls_ttl = MPLS_TTL_MASK;
965 dissector_set_mpls_lse(key_val, 0);
966 dissector_set_mpls_lse(key_mask, 0);
a577d8f7
BL		 967 }
968 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
1a7fca63
BL		 969 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
970
442f730e
GN		 971 if (bos & ~MPLS_BOS_MASK) {
972 NL_SET_ERR_MSG_ATTR(extack,
973 tb[TCA_FLOWER_KEY_MPLS_BOS],
974 "Bottom Of Stack (BOS) must be 0 or 1");
1a7fca63 975 return -EINVAL;
442f730e 976 }
58cff782
GN		 977 lse_val->mpls_bos = bos;
978 lse_mask->mpls_bos = MPLS_BOS_MASK;
979 dissector_set_mpls_lse(key_val, 0);
980 dissector_set_mpls_lse(key_mask, 0);
a577d8f7
BL		 981 }
982 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
1a7fca63
BL		 983 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
984
442f730e
GN		 985 if (tc & ~MPLS_TC_MASK) {
986 NL_SET_ERR_MSG_ATTR(extack,
987 tb[TCA_FLOWER_KEY_MPLS_TC],
988 "Traffic Class (TC) must be between 0 and 7");
1a7fca63 989 return -EINVAL;
442f730e 990 }
58cff782
GN		 991 lse_val->mpls_tc = tc;
992 lse_mask->mpls_tc = MPLS_TC_MASK;
993 dissector_set_mpls_lse(key_val, 0);
994 dissector_set_mpls_lse(key_mask, 0);
a577d8f7
BL		 995 }
996 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
1a7fca63
BL		 997 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
998
442f730e
GN		 999 if (label & ~MPLS_LABEL_MASK) {
1000 NL_SET_ERR_MSG_ATTR(extack,
1001 tb[TCA_FLOWER_KEY_MPLS_LABEL],
1002 "Label must be between 0 and 1048575");
1a7fca63 1003 return -EINVAL;
442f730e 1004 }
58cff782
GN		 1005 lse_val->mpls_label = label;
1006 lse_mask->mpls_label = MPLS_LABEL_MASK;
1007 dissector_set_mpls_lse(key_val, 0);
1008 dissector_set_mpls_lse(key_mask, 0);
a577d8f7 1009 }
1a7fca63 1010 return 0;
a577d8f7
BL		 1011}
1012
9399ae9a 1013static void fl_set_key_vlan(struct nlattr **tb,
aaab0834 1014 __be16 ethertype,
d64efd09 1015 int vlan_id_key, int vlan_prio_key,
2105f700 1016 int vlan_next_eth_type_key,
9399ae9a
HHZ		 1017 struct flow_dissector_key_vlan *key_val,
1018 struct flow_dissector_key_vlan *key_mask)
1019{
1020#define VLAN_PRIORITY_MASK 0x7
1021
d64efd09 1022 if (tb[vlan_id_key]) {
9399ae9a 1023 key_val->vlan_id =
d64efd09 1024 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
9399ae9a
HHZ		 1025 key_mask->vlan_id = VLAN_VID_MASK;
1026 }
d64efd09 1027 if (tb[vlan_prio_key]) {
9399ae9a 1028 key_val->vlan_priority =
d64efd09 1029 nla_get_u8(tb[vlan_prio_key]) &
9399ae9a
HHZ		 1030 VLAN_PRIORITY_MASK;
1031 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
1032 }
99fdb22b
BS		 1033 if (ethertype) {
1034 key_val->vlan_tpid = ethertype;
1035 key_mask->vlan_tpid = cpu_to_be16(~0);
1036 }
2105f700
VB		 1037 if (tb[vlan_next_eth_type_key]) {
1038 key_val->vlan_eth_type =
1039 nla_get_be16(tb[vlan_next_eth_type_key]);
1040 key_mask->vlan_eth_type = cpu_to_be16(~0);
1041 }
9399ae9a
HHZ		 1042}
1043
5008750e
WD		 1044static void fl_set_key_pppoe(struct nlattr **tb,
1045 struct flow_dissector_key_pppoe *key_val,
1046 struct flow_dissector_key_pppoe *key_mask,
1047 struct fl_flow_key *key,
1048 struct fl_flow_key *mask)
1049{
1050 /* key_val::type must be set to ETH_P_PPP_SES
1051 * because ETH_P_PPP_SES was stored in basic.n_proto
1052 * which might get overwritten by ppp_proto
1053 * or might be set to 0, the role of key_val::type
1054 * is simmilar to vlan_key::tpid
1055 */
1056 key_val->type = htons(ETH_P_PPP_SES);
1057 key_mask->type = cpu_to_be16(~0);
1058
1059 if (tb[TCA_FLOWER_KEY_PPPOE_SID]) {
1060 key_val->session_id =
1061 nla_get_be16(tb[TCA_FLOWER_KEY_PPPOE_SID]);
1062 key_mask->session_id = cpu_to_be16(~0);
1063 }
1064 if (tb[TCA_FLOWER_KEY_PPP_PROTO]) {
1065 key_val->ppp_proto =
1066 nla_get_be16(tb[TCA_FLOWER_KEY_PPP_PROTO]);
1067 key_mask->ppp_proto = cpu_to_be16(~0);
1068
1069 if (key_val->ppp_proto == htons(PPP_IP)) {
1070 key->basic.n_proto = htons(ETH_P_IP);
1071 mask->basic.n_proto = cpu_to_be16(~0);
1072 } else if (key_val->ppp_proto == htons(PPP_IPV6)) {
1073 key->basic.n_proto = htons(ETH_P_IPV6);
1074 mask->basic.n_proto = cpu_to_be16(~0);
1075 } else if (key_val->ppp_proto == htons(PPP_MPLS_UC)) {
1076 key->basic.n_proto = htons(ETH_P_MPLS_UC);
1077 mask->basic.n_proto = cpu_to_be16(~0);
1078 } else if (key_val->ppp_proto == htons(PPP_MPLS_MC)) {
1079 key->basic.n_proto = htons(ETH_P_MPLS_MC);
1080 mask->basic.n_proto = cpu_to_be16(~0);
1081 }
1082 } else {
1083 key->basic.n_proto = 0;
1084 mask->basic.n_proto = cpu_to_be16(0);
1085 }
1086}
1087
faa3ffce
OG		 1088static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
1089 u32 *dissector_key, u32 *dissector_mask,
1090 u32 flower_flag_bit, u32 dissector_flag_bit)
1091{
1092 if (flower_mask & flower_flag_bit) {
1093 *dissector_mask |= dissector_flag_bit;
1094 if (flower_key & flower_flag_bit)
1095 *dissector_key |= dissector_flag_bit;
1096 }
1097}
1098
e304e21a
GN		 1099static int fl_set_key_flags(struct nlattr **tb, u32 *flags_key,
1100 u32 *flags_mask, struct netlink_ext_ack *extack)
faa3ffce
OG		 1101{
1102 u32 key, mask;
1103
d9724772 1104 /* mask is mandatory for flags */
e304e21a
GN		 1105 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) {
1106 NL_SET_ERR_MSG(extack, "Missing flags mask");
d9724772 1107 return -EINVAL;
e304e21a 1108 }
faa3ffce 1109
abee13f5
VO		 1110 key = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS]));
1111 mask = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
faa3ffce
OG		 1112
1113 *flags_key = 0;
1114 *flags_mask = 0;
1115
1116 fl_set_key_flag(key, mask, flags_key, flags_mask,
1117 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 1118 fl_set_key_flag(key, mask, flags_key, flags_mask,
1119 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1120 FLOW_DIS_FIRST_FRAG);
d9724772
OG		 1121
1122 return 0;
faa3ffce
OG		 1123}
1124
0e2c17b6 1125static void fl_set_key_ip(struct nlattr **tb, bool encap,
4d80cc0a
OG		 1126 struct flow_dissector_key_ip *key,
1127 struct flow_dissector_key_ip *mask)
1128{
0e2c17b6
OG		 1129 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1130 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1131 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1132 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
4d80cc0a 1133
0e2c17b6
OG		 1134 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
1135 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
4d80cc0a
OG		 1136}
1137
0a6e7778
PJV		 1138static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
1139 int depth, int option_len,
1140 struct netlink_ext_ack *extack)
1141{
1142 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
1143 struct nlattr *class = NULL, *type = NULL, *data = NULL;
1144 struct geneve_opt *opt;
1145 int err, data_len = 0;
1146
1147 if (option_len > sizeof(struct geneve_opt))
1148 data_len = option_len - sizeof(struct geneve_opt);
1149
1150 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
1151 memset(opt, 0xff, option_len);
1152 opt->length = data_len / 4;
1153 opt->r1 = 0;
1154 opt->r2 = 0;
1155 opt->r3 = 0;
1156
1157 /* If no mask has been prodived we assume an exact match. */
1158 if (!depth)
1159 return sizeof(struct geneve_opt) + data_len;
1160
1161 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
1162 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
1163 return -EINVAL;
1164 }
1165
8cb08174
JB		 1166 err = nla_parse_nested_deprecated(tb,
1167 TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
1168 nla, geneve_opt_policy, extack);
0a6e7778
PJV		 1169 if (err < 0)
1170 return err;
1171
1172 /* We are not allowed to omit any of CLASS, TYPE or DATA
1173 * fields from the key.
1174 */
1175 if (!option_len &&
1176 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
1177 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
1178 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
1179 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
1180 return -EINVAL;
1181 }
1182
1183 /* Omitting any of CLASS, TYPE or DATA fields is allowed
1184 * for the mask.
1185 */
1186 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
1187 int new_len = key->enc_opts.len;
1188
1189 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
1190 data_len = nla_len(data);
1191 if (data_len < 4) {
1192 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
1193 return -ERANGE;
1194 }
1195 if (data_len % 4) {
1196 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
1197 return -ERANGE;
1198 }
1199
1200 new_len += sizeof(struct geneve_opt) + data_len;
1201 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
1202 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
1203 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
1204 return -ERANGE;
1205 }
1206 opt->length = data_len / 4;
1207 memcpy(opt->opt_data, nla_data(data), data_len);
1208 }
1209
1210 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
1211 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
1212 opt->opt_class = nla_get_be16(class);
1213 }
1214
1215 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
1216 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
1217 opt->type = nla_get_u8(type);
1218 }
1219
1220 return sizeof(struct geneve_opt) + data_len;
1221}
1222
d8f9dfae
XL		 1223static int fl_set_vxlan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1224 int depth, int option_len,
1225 struct netlink_ext_ack *extack)
1226{
1227 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1];
1228 struct vxlan_metadata *md;
1229 int err;
1230
1231 md = (struct vxlan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1232 memset(md, 0xff, sizeof(*md));
1233
1234 if (!depth)
1235 return sizeof(*md);
1236
1237 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_VXLAN) {
1238 NL_SET_ERR_MSG(extack, "Non-vxlan option type for mask");
1239 return -EINVAL;
1240 }
1241
1242 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX, nla,
1243 vxlan_opt_policy, extack);
1244 if (err < 0)
1245 return err;
1246
1247 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
1248 NL_SET_ERR_MSG(extack, "Missing tunnel key vxlan option gbp");
1249 return -EINVAL;
1250 }
1251
13e6ce98 1252 if (tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
d8f9dfae 1253 md->gbp = nla_get_u32(tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]);
13e6ce98
XL		 1254 md->gbp &= VXLAN_GBP_MASK;
1255 }
d8f9dfae
XL		 1256
1257 return sizeof(*md);
1258}
1259
79b1011c
XL		 1260static int fl_set_erspan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1261 int depth, int option_len,
1262 struct netlink_ext_ack *extack)
1263{
1264 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1];
1265 struct erspan_metadata *md;
1266 int err;
1267
1268 md = (struct erspan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1269 memset(md, 0xff, sizeof(*md));
1270 md->version = 1;
1271
1272 if (!depth)
1273 return sizeof(*md);
1274
1275 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_ERSPAN) {
1276 NL_SET_ERR_MSG(extack, "Non-erspan option type for mask");
1277 return -EINVAL;
1278 }
1279
1280 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX, nla,
1281 erspan_opt_policy, extack);
1282 if (err < 0)
1283 return err;
1284
1285 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) {
1286 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver");
1287 return -EINVAL;
1288 }
1289
1290 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER])
1291 md->version = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]);
1292
1293 if (md->version == 1) {
1294 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1295 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index");
1296 return -EINVAL;
1297 }
1298 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1299 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX];
8e1b3ac4 1300 memset(&md->u, 0x00, sizeof(md->u));
79b1011c
XL		 1301 md->u.index = nla_get_be32(nla);
1302 }
1303 } else if (md->version == 2) {
1304 if (!option_len && (!tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] ||
1305 !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID])) {
1306 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid");
1307 return -EINVAL;
1308 }
1309 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]) {
1310 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR];
1311 md->u.md2.dir = nla_get_u8(nla);
1312 }
1313 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]) {
1314 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID];
1315 set_hwid(&md->u.md2, nla_get_u8(nla));
1316 }
1317 } else {
1318 NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect");
1319 return -EINVAL;
1320 }
1321
1322 return sizeof(*md);
1323}
1324
e3acda7a
WD		 1325static int fl_set_gtp_opt(const struct nlattr *nla, struct fl_flow_key *key,
1326 int depth, int option_len,
1327 struct netlink_ext_ack *extack)
1328{
1329 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GTP_MAX + 1];
1330 struct gtp_pdu_session_info *sinfo;
1331 u8 len = key->enc_opts.len;
1332 int err;
1333
1334 sinfo = (struct gtp_pdu_session_info *)&key->enc_opts.data[len];
1335 memset(sinfo, 0xff, option_len);
1336
1337 if (!depth)
1338 return sizeof(*sinfo);
1339
1340 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GTP) {
1341 NL_SET_ERR_MSG_MOD(extack, "Non-gtp option type for mask");
1342 return -EINVAL;
1343 }
1344
1345 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_GTP_MAX, nla,
1346 gtp_opt_policy, extack);
1347 if (err < 0)
1348 return err;
1349
1350 if (!option_len &&
1351 (!tb[TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE] ||
1352 !tb[TCA_FLOWER_KEY_ENC_OPT_GTP_QFI])) {
1353 NL_SET_ERR_MSG_MOD(extack,
1354 "Missing tunnel key gtp option pdu type or qfi");
1355 return -EINVAL;
1356 }
1357
1358 if (tb[TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE])
1359 sinfo->pdu_type =
1360 nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE]);
1361
1362 if (tb[TCA_FLOWER_KEY_ENC_OPT_GTP_QFI])
1363 sinfo->qfi = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_GTP_QFI]);
1364
1365 return sizeof(*sinfo);
1366}
1367
0a6e7778
PJV		 1368static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
1369 struct fl_flow_key *mask,
1370 struct netlink_ext_ack *extack)
1371{
1372 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
63c82997
JK		 1373 int err, option_len, key_depth, msk_depth = 0;
1374
8cb08174
JB		 1375 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS],
1376 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1377 enc_opts_policy, extack);
63c82997
JK		 1378 if (err)
1379 return err;
0a6e7778
PJV		 1380
1381 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
1382
1383 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
8cb08174
JB		 1384 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
1385 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1386 enc_opts_policy, extack);
63c82997
JK		 1387 if (err)
1388 return err;
1389
0a6e7778
PJV		 1390 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1391 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
c96adff9
CW		 1392 if (!nla_ok(nla_opt_msk, msk_depth)) {
1393 NL_SET_ERR_MSG(extack, "Invalid nested attribute for masks");
1394 return -EINVAL;
1395 }
0a6e7778
PJV		 1396 }
1397
1398 nla_for_each_attr(nla_opt_key, nla_enc_key,
1399 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
1400 switch (nla_type(nla_opt_key)) {
1401 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
d8f9dfae
XL		 1402 if (key->enc_opts.dst_opt_type &&
1403 key->enc_opts.dst_opt_type != TUNNEL_GENEVE_OPT) {
1404 NL_SET_ERR_MSG(extack, "Duplicate type for geneve options");
1405 return -EINVAL;
1406 }
0a6e7778
PJV		 1407 option_len = 0;
1408 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1409 option_len = fl_set_geneve_opt(nla_opt_key, key,
1410 key_depth, option_len,
1411 extack);
1412 if (option_len < 0)
1413 return option_len;
1414
1415 key->enc_opts.len += option_len;
1416 /* At the same time we need to parse through the mask
1417 * in order to verify exact and mask attribute lengths.
1418 */
1419 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1420 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
1421 msk_depth, option_len,
1422 extack);
1423 if (option_len < 0)
1424 return option_len;
1425
1426 mask->enc_opts.len += option_len;
1427 if (key->enc_opts.len != mask->enc_opts.len) {
1428 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1429 return -EINVAL;
1430 }
d8f9dfae
XL		 1431 break;
1432 case TCA_FLOWER_KEY_ENC_OPTS_VXLAN:
1433 if (key->enc_opts.dst_opt_type) {
1434 NL_SET_ERR_MSG(extack, "Duplicate type for vxlan options");
1435 return -EINVAL;
1436 }
1437 option_len = 0;
1438 key->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1439 option_len = fl_set_vxlan_opt(nla_opt_key, key,
1440 key_depth, option_len,
1441 extack);
1442 if (option_len < 0)
1443 return option_len;
1444
1445 key->enc_opts.len += option_len;
1446 /* At the same time we need to parse through the mask
1447 * in order to verify exact and mask attribute lengths.
1448 */
1449 mask->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1450 option_len = fl_set_vxlan_opt(nla_opt_msk, mask,
1451 msk_depth, option_len,
1452 extack);
1453 if (option_len < 0)
1454 return option_len;
1455
1456 mask->enc_opts.len += option_len;
1457 if (key->enc_opts.len != mask->enc_opts.len) {
1458 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1459 return -EINVAL;
1460 }
79b1011c
XL		 1461 break;
1462 case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN:
1463 if (key->enc_opts.dst_opt_type) {
1464 NL_SET_ERR_MSG(extack, "Duplicate type for erspan options");
1465 return -EINVAL;
1466 }
1467 option_len = 0;
1468 key->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1469 option_len = fl_set_erspan_opt(nla_opt_key, key,
1470 key_depth, option_len,
1471 extack);
1472 if (option_len < 0)
1473 return option_len;
1474
1475 key->enc_opts.len += option_len;
1476 /* At the same time we need to parse through the mask
1477 * in order to verify exact and mask attribute lengths.
1478 */
1479 mask->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1480 option_len = fl_set_erspan_opt(nla_opt_msk, mask,
1481 msk_depth, option_len,
1482 extack);
1483 if (option_len < 0)
1484 return option_len;
1485
1486 mask->enc_opts.len += option_len;
1487 if (key->enc_opts.len != mask->enc_opts.len) {
1488 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1489 return -EINVAL;
1490 }
0a6e7778 1491 break;
e3acda7a
WD		 1492 case TCA_FLOWER_KEY_ENC_OPTS_GTP:
1493 if (key->enc_opts.dst_opt_type) {
1494 NL_SET_ERR_MSG_MOD(extack,
1495 "Duplicate type for gtp options");
1496 return -EINVAL;
1497 }
1498 option_len = 0;
1499 key->enc_opts.dst_opt_type = TUNNEL_GTP_OPT;
1500 option_len = fl_set_gtp_opt(nla_opt_key, key,
1501 key_depth, option_len,
1502 extack);
1503 if (option_len < 0)
1504 return option_len;
1505
1506 key->enc_opts.len += option_len;
1507 /* At the same time we need to parse through the mask
1508 * in order to verify exact and mask attribute lengths.
1509 */
1510 mask->enc_opts.dst_opt_type = TUNNEL_GTP_OPT;
1511 option_len = fl_set_gtp_opt(nla_opt_msk, mask,
1512 msk_depth, option_len,
1513 extack);
1514 if (option_len < 0)
1515 return option_len;
1516
1517 mask->enc_opts.len += option_len;
1518 if (key->enc_opts.len != mask->enc_opts.len) {
1519 NL_SET_ERR_MSG_MOD(extack,
1520 "Key and mask miss aligned");
1521 return -EINVAL;
1522 }
1523 break;
0a6e7778
PJV		 1524 default:
1525 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
1526 return -EINVAL;
1527 }
c96adff9
CW		 1528
1529 if (!msk_depth)
1530 continue;
1531
1532 if (!nla_ok(nla_opt_msk, msk_depth)) {
1533 NL_SET_ERR_MSG(extack, "A mask attribute is invalid");
1534 return -EINVAL;
1535 }
1536 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
0a6e7778
PJV		 1537 }
1538
1539 return 0;
1540}
1541
1bcc51ac 1542static int fl_validate_ct_state(u16 state, struct nlattr *tb,
1543 struct netlink_ext_ack *extack)
1544{
1545 if (state && !(state & TCA_FLOWER_KEY_CT_FLAGS_TRACKED)) {
1546 NL_SET_ERR_MSG_ATTR(extack, tb,
1547 "no trk, so no other flag can be set");
1548 return -EINVAL;
1549 }
1550
1551 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1552 state & TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED) {
1553 NL_SET_ERR_MSG_ATTR(extack, tb,
1554 "new and est are mutually exclusive");
1555 return -EINVAL;
1556 }
1557
3aed8b63 1558 if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID &&
1559 state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
1560 TCA_FLOWER_KEY_CT_FLAGS_INVALID)) {
1561 NL_SET_ERR_MSG_ATTR(extack, tb,
1562 "when inv is set, only trk may be set");
1563 return -EINVAL;
1564 }
1565
1566 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1567 state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) {
1568 NL_SET_ERR_MSG_ATTR(extack, tb,
1569 "new and rpl are mutually exclusive");
1570 return -EINVAL;
1571 }
1572
1bcc51ac 1573 return 0;
1574}
1575
e0ace68a
PB		 1576static int fl_set_key_ct(struct nlattr **tb,
1577 struct flow_dissector_key_ct *key,
1578 struct flow_dissector_key_ct *mask,
1579 struct netlink_ext_ack *extack)
1580{
1581 if (tb[TCA_FLOWER_KEY_CT_STATE]) {
1bcc51ac 1582 int err;
1583
e0ace68a
PB		 1584 if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) {
1585 NL_SET_ERR_MSG(extack, "Conntrack isn't enabled");
1586 return -EOPNOTSUPP;
1587 }
1588 fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
1589 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
1590 sizeof(key->ct_state));
1bcc51ac 1591
afa536d8 1592 err = fl_validate_ct_state(key->ct_state & mask->ct_state,
1bcc51ac 1593 tb[TCA_FLOWER_KEY_CT_STATE_MASK],
1594 extack);
1595 if (err)
1596 return err;
1597
e0ace68a
PB		 1598 }
1599 if (tb[TCA_FLOWER_KEY_CT_ZONE]) {
1600 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) {
1601 NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled");
1602 return -EOPNOTSUPP;
1603 }
1604 fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
1605 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
1606 sizeof(key->ct_zone));
1607 }
1608 if (tb[TCA_FLOWER_KEY_CT_MARK]) {
1609 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) {
1610 NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled");
1611 return -EOPNOTSUPP;
1612 }
1613 fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
1614 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
1615 sizeof(key->ct_mark));
1616 }
1617 if (tb[TCA_FLOWER_KEY_CT_LABELS]) {
1618 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) {
1619 NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled");
1620 return -EOPNOTSUPP;
1621 }
1622 fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
1623 mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
1624 sizeof(key->ct_labels));
1625 }
1626
1627 return 0;
1628}
1629
285ba06b 1630static bool is_vlan_key(struct nlattr *tb, __be16 *ethertype,
99fdb22b
BS		 1631 struct fl_flow_key *key, struct fl_flow_key *mask,
1632 int vthresh)
285ba06b 1633{
99fdb22b
BS		 1634 const bool good_num_of_vlans = key->num_of_vlans.num_of_vlans > vthresh;
1635
1636 if (!tb) {
1637 *ethertype = 0;
1638 return good_num_of_vlans;
1639 }
285ba06b
BS		 1640
1641 *ethertype = nla_get_be16(tb);
99fdb22b 1642 if (good_num_of_vlans || eth_type_vlan(*ethertype))
285ba06b
BS		 1643 return true;
1644
1645 key->basic.n_proto = *ethertype;
1646 mask->basic.n_proto = cpu_to_be16(~0);
1647 return false;
1648}
1649
77b9900e 1650static int fl_set_key(struct net *net, struct nlattr **tb,
1057c55f
AA		 1651 struct fl_flow_key *key, struct fl_flow_key *mask,
1652 struct netlink_ext_ack *extack)
77b9900e 1653{
9399ae9a 1654 __be16 ethertype;
d9724772 1655 int ret = 0;
a5148626 1656
77b9900e 1657 if (tb[TCA_FLOWER_INDEV]) {
1057c55f 1658 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
77b9900e
JP		 1659 if (err < 0)
1660 return err;
8212ed77
JP		 1661 key->meta.ingress_ifindex = err;
1662 mask->meta.ingress_ifindex = 0xffffffff;
77b9900e
JP		 1663 }
1664
1665 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1666 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1667 sizeof(key->eth.dst));
1668 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1669 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1670 sizeof(key->eth.src));
b4000312
BS		 1671 fl_set_key_val(tb, &key->num_of_vlans,
1672 TCA_FLOWER_KEY_NUM_OF_VLANS,
1673 &mask->num_of_vlans,
1674 TCA_FLOWER_UNSPEC,
1675 sizeof(key->num_of_vlans));
66530bdf 1676
99fdb22b 1677 if (is_vlan_key(tb[TCA_FLOWER_KEY_ETH_TYPE], &ethertype, key, mask, 0)) {
6ee59e55
BS		 1678 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
1679 TCA_FLOWER_KEY_VLAN_PRIO,
1680 TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1681 &key->vlan, &mask->vlan);
1682
99fdb22b
BS		 1683 if (is_vlan_key(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE],
1684 &ethertype, key, mask, 1)) {
6ee59e55
BS		 1685 fl_set_key_vlan(tb, ethertype,
1686 TCA_FLOWER_KEY_CVLAN_ID,
1687 TCA_FLOWER_KEY_CVLAN_PRIO,
1688 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1689 &key->cvlan, &mask->cvlan);
1690 fl_set_key_val(tb, &key->basic.n_proto,
1691 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1692 &mask->basic.n_proto,
1693 TCA_FLOWER_UNSPEC,
1694 sizeof(key->basic.n_proto));
1695 }
9399ae9a 1696 }
66530bdf 1697
5008750e
WD		 1698 if (key->basic.n_proto == htons(ETH_P_PPP_SES))
1699 fl_set_key_pppoe(tb, &key->pppoe, &mask->pppoe, key, mask);
1700
77b9900e
JP		 1701 if (key->basic.n_proto == htons(ETH_P_IP) ||
1702 key->basic.n_proto == htons(ETH_P_IPV6)) {
1703 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1704 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1705 sizeof(key->basic.ip_proto));
0e2c17b6 1706 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
77b9900e 1707 }
66530bdf
JHS		 1708
1709 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
1710 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1711 mask->control.addr_type = ~0;
77b9900e
JP		 1712 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1713 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1714 sizeof(key->ipv4.src));
1715 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1716 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1717 sizeof(key->ipv4.dst));
66530bdf
JHS		 1718 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
1719 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1720 mask->control.addr_type = ~0;
77b9900e
JP		 1721 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1722 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1723 sizeof(key->ipv6.src));
1724 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1725 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1726 sizeof(key->ipv6.dst));
1727 }
66530bdf 1728
77b9900e
JP		 1729 if (key->basic.ip_proto == IPPROTO_TCP) {
1730 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 1731 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 1732 sizeof(key->tp.src));
1733 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 1734 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
77b9900e 1735 sizeof(key->tp.dst));
fdfc7dd6
JP		 1736 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1737 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1738 sizeof(key->tcp.flags));
77b9900e
JP		 1739 } else if (key->basic.ip_proto == IPPROTO_UDP) {
1740 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 1741 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 1742 sizeof(key->tp.src));
1743 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 1744 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
77b9900e 1745 sizeof(key->tp.dst));
5976c5f4
SH		 1746 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
1747 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1748 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1749 sizeof(key->tp.src));
1750 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1751 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1752 sizeof(key->tp.dst));
7b684884
SH		 1753 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
1754 key->basic.ip_proto == IPPROTO_ICMP) {
1755 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
1756 &mask->icmp.type,
1757 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1758 sizeof(key->icmp.type));
1759 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
1760 &mask->icmp.code,
1761 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1762 sizeof(key->icmp.code));
1763 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1764 key->basic.ip_proto == IPPROTO_ICMPV6) {
1765 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1766 &mask->icmp.type,
1767 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1768 sizeof(key->icmp.type));
040587af 1769 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
7b684884 1770 &mask->icmp.code,
040587af 1771 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
7b684884 1772 sizeof(key->icmp.code));
a577d8f7
BL		 1773 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1774 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
442f730e 1775 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack);
1a7fca63
BL		 1776 if (ret)
1777 return ret;
99d31326
SH		 1778 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1779 key->basic.n_proto == htons(ETH_P_RARP)) {
1780 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1781 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1782 sizeof(key->arp.sip));
1783 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1784 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1785 sizeof(key->arp.tip));
1786 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1787 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1788 sizeof(key->arp.op));
1789 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1790 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1791 sizeof(key->arp.sha));
1792 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1793 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1794 sizeof(key->arp.tha));
8b189ea0
WD		 1795 } else if (key->basic.ip_proto == IPPROTO_L2TP) {
1796 fl_set_key_val(tb, &key->l2tpv3.session_id,
1797 TCA_FLOWER_KEY_L2TPV3_SID,
1798 &mask->l2tpv3.session_id, TCA_FLOWER_UNSPEC,
1799 sizeof(key->l2tpv3.session_id));
77b9900e
JP		 1800 }
1801
5c72299f
AN		 1802 if (key->basic.ip_proto == IPPROTO_TCP ||
1803 key->basic.ip_proto == IPPROTO_UDP ||
1804 key->basic.ip_proto == IPPROTO_SCTP) {
bd7d4c12 1805 ret = fl_set_key_port_range(tb, key, mask, extack);
5c72299f
AN		 1806 if (ret)
1807 return ret;
1808 }
1809
bc3103f1
AV		 1810 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1811 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1812 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1813 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1814 fl_set_key_val(tb, &key->enc_ipv4.src,
1815 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1816 &mask->enc_ipv4.src,
1817 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1818 sizeof(key->enc_ipv4.src));
1819 fl_set_key_val(tb, &key->enc_ipv4.dst,
1820 TCA_FLOWER_KEY_ENC_IPV4_DST,
1821 &mask->enc_ipv4.dst,
1822 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1823 sizeof(key->enc_ipv4.dst));
1824 }
1825
1826 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1827 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1828 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1829 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1830 fl_set_key_val(tb, &key->enc_ipv6.src,
1831 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1832 &mask->enc_ipv6.src,
1833 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1834 sizeof(key->enc_ipv6.src));
1835 fl_set_key_val(tb, &key->enc_ipv6.dst,
1836 TCA_FLOWER_KEY_ENC_IPV6_DST,
1837 &mask->enc_ipv6.dst,
1838 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1839 sizeof(key->enc_ipv6.dst));
1840 }
1841
1842 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1843 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
bc3103f1
AV		 1844 sizeof(key->enc_key_id.keyid));
1845
f4d997fd
HHZ		 1846 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1847 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1848 sizeof(key->enc_tp.src));
1849
1850 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1851 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1852 sizeof(key->enc_tp.dst));
1853
0e2c17b6
OG		 1854 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1855
5923b8f7
AL		 1856 fl_set_key_val(tb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
1857 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
1858 sizeof(key->hash.hash));
1859
0a6e7778
PJV		 1860 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1861 ret = fl_set_enc_opt(tb, key, mask, extack);
1862 if (ret)
1863 return ret;
1864 }
1865
e0ace68a
PB		 1866 ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack);
1867 if (ret)
1868 return ret;
1869
d9724772 1870 if (tb[TCA_FLOWER_KEY_FLAGS])
e304e21a
GN		 1871 ret = fl_set_key_flags(tb, &key->control.flags,
1872 &mask->control.flags, extack);
faa3ffce 1873
d9724772 1874 return ret;
77b9900e
JP		 1875}
1876
05cd271f
PB		 1877static void fl_mask_copy(struct fl_flow_mask *dst,
1878 struct fl_flow_mask *src)
77b9900e 1879{
05cd271f
PB		 1880 const void *psrc = fl_key_get_start(&src->key, src);
1881 void *pdst = fl_key_get_start(&dst->key, src);
77b9900e 1882
05cd271f
PB		 1883 memcpy(pdst, psrc, fl_mask_range(src));
1884 dst->range = src->range;
77b9900e
JP		 1885}
1886
1887static const struct rhashtable_params fl_ht_params = {
1888 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1889 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1890 .automatic_shrinking = true,
1891};
1892
05cd271f 1893static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
77b9900e 1894{
05cd271f
PB		 1895 mask->filter_ht_params = fl_ht_params;
1896 mask->filter_ht_params.key_len = fl_mask_range(mask);
1897 mask->filter_ht_params.key_offset += mask->range.start;
77b9900e 1898
05cd271f 1899 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
77b9900e
JP		 1900}
1901
1902#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
c593642c 1903#define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member)
77b9900e 1904
339ba878
HHZ		 1905#define FL_KEY_IS_MASKED(mask, member) \
1906 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1907 0, FL_KEY_MEMBER_SIZE(member)) \
77b9900e
JP		 1908
1909#define FL_KEY_SET(keys, cnt, id, member) \
1910 do { \
1911 keys[cnt].key_id = id; \
1912 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1913 cnt++; \
1914 } while(0);
1915
339ba878 1916#define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
77b9900e 1917 do { \
339ba878 1918 if (FL_KEY_IS_MASKED(mask, member)) \
77b9900e
JP		 1919 FL_KEY_SET(keys, cnt, id, member); \
1920 } while(0);
1921
33fb5cba
JP		 1922static void fl_init_dissector(struct flow_dissector *dissector,
1923 struct fl_flow_key *mask)
77b9900e
JP		 1924{
1925 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1926 size_t cnt = 0;
1927
8212ed77
JP		 1928 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1929 FLOW_DISSECTOR_KEY_META, meta);
42aecaa9 1930 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
77b9900e 1931 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
33fb5cba 1932 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1933 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
33fb5cba 1934 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1935 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
33fb5cba 1936 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1937 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
8ffb055b
YK		 1938 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1939 FLOW_DISSECTOR_KEY_PORTS, tp);
1940 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1941 FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range);
33fb5cba 1942 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
4d80cc0a 1943 FLOW_DISSECTOR_KEY_IP, ip);
33fb5cba 1944 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
fdfc7dd6 1945 FLOW_DISSECTOR_KEY_TCP, tcp);
33fb5cba 1946 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
7b684884 1947 FLOW_DISSECTOR_KEY_ICMP, icmp);
33fb5cba 1948 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
99d31326 1949 FLOW_DISSECTOR_KEY_ARP, arp);
33fb5cba 1950 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
a577d8f7 1951 FLOW_DISSECTOR_KEY_MPLS, mpls);
33fb5cba 1952 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
9399ae9a 1953 FLOW_DISSECTOR_KEY_VLAN, vlan);
33fb5cba 1954 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
d64efd09 1955 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
33fb5cba 1956 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1957 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
33fb5cba 1958 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1959 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
33fb5cba 1960 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1961 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
33fb5cba
JP		 1962 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1963 FL_KEY_IS_MASKED(mask, enc_ipv6))
519d1052
HHZ		 1964 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1965 enc_control);
33fb5cba 1966 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
f4d997fd 1967 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
33fb5cba 1968 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
0e2c17b6 1969 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
0a6e7778
PJV		 1970 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1971 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
e0ace68a
PB		 1972 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1973 FLOW_DISSECTOR_KEY_CT, ct);
5923b8f7
AL		 1974 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1975 FLOW_DISSECTOR_KEY_HASH, hash);
b4000312
BS		 1976 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1977 FLOW_DISSECTOR_KEY_NUM_OF_VLANS, num_of_vlans);
5008750e
WD		 1978 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1979 FLOW_DISSECTOR_KEY_PPPOE, pppoe);
8b189ea0
WD		 1980 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1981 FLOW_DISSECTOR_KEY_L2TPV3, l2tpv3);
77b9900e 1982
33fb5cba 1983 skb_flow_dissector_init(dissector, keys, cnt);
05cd271f
PB		 1984}
1985
1986static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1987 struct fl_flow_mask *mask)
1988{
1989 struct fl_flow_mask *newmask;
1990 int err;
1991
1992 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1993 if (!newmask)
1994 return ERR_PTR(-ENOMEM);
1995
1996 fl_mask_copy(newmask, mask);
1997
8ffb055b
YK		 1998 if ((newmask->key.tp_range.tp_min.dst &&
1999 newmask->key.tp_range.tp_max.dst) ||
2000 (newmask->key.tp_range.tp_min.src &&
2001 newmask->key.tp_range.tp_max.src))
5c72299f
AN		 2002 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
2003
05cd271f
PB		 2004 err = fl_init_mask_hashtable(newmask);
2005 if (err)
2006 goto errout_free;
2007
33fb5cba 2008 fl_init_dissector(&newmask->dissector, &newmask->key);
05cd271f
PB		 2009
2010 INIT_LIST_HEAD_RCU(&newmask->filters);
2011
f48ef4d5 2012 refcount_set(&newmask->refcnt, 1);
195c234d
VB		 2013 err = rhashtable_replace_fast(&head->ht, &mask->ht_node,
2014 &newmask->ht_node, mask_ht_params);
05cd271f
PB		 2015 if (err)
2016 goto errout_destroy;
2017
259e60f9 2018 spin_lock(&head->masks_lock);
05cd271f 2019 list_add_tail_rcu(&newmask->list, &head->masks);
259e60f9 2020 spin_unlock(&head->masks_lock);
05cd271f
PB		 2021
2022 return newmask;
2023
2024errout_destroy:
2025 rhashtable_destroy(&newmask->ht);
2026errout_free:
2027 kfree(newmask);
2028
2029 return ERR_PTR(err);
77b9900e
JP		 2030}
2031
2032static int fl_check_assign_mask(struct cls_fl_head *head,
05cd271f
PB		 2033 struct cls_fl_filter *fnew,
2034 struct cls_fl_filter *fold,
77b9900e
JP		 2035 struct fl_flow_mask *mask)
2036{
05cd271f 2037 struct fl_flow_mask *newmask;
f48ef4d5 2038 int ret = 0;
77b9900e 2039
f48ef4d5 2040 rcu_read_lock();
195c234d
VB		 2041
2042 /* Insert mask as temporary node to prevent concurrent creation of mask
2043 * with same key. Any concurrent lookups with same key will return
99815f50 2044 * -EAGAIN because mask's refcnt is zero.
195c234d
VB		 2045 */
2046 fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht,
2047 &mask->ht_node,
2048 mask_ht_params);
05cd271f 2049 if (!fnew->mask) {
f48ef4d5
VB		 2050 rcu_read_unlock();
2051
195c234d
VB		 2052 if (fold) {
2053 ret = -EINVAL;
2054 goto errout_cleanup;
2055 }
77b9900e 2056
05cd271f 2057 newmask = fl_create_new_mask(head, mask);
195c234d
VB		 2058 if (IS_ERR(newmask)) {
2059 ret = PTR_ERR(newmask);
2060 goto errout_cleanup;
2061 }
77b9900e 2062
05cd271f 2063 fnew->mask = newmask;
f48ef4d5 2064 return 0;
195c234d
VB		 2065 } else if (IS_ERR(fnew->mask)) {
2066 ret = PTR_ERR(fnew->mask);
f6521c58 2067 } else if (fold && fold->mask != fnew->mask) {
f48ef4d5
VB		 2068 ret = -EINVAL;
2069 } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) {
2070 /* Mask was deleted concurrently, try again */
2071 ret = -EAGAIN;
05cd271f 2072 }
f48ef4d5
VB		 2073 rcu_read_unlock();
2074 return ret;
195c234d
VB		 2075
2076errout_cleanup:
2077 rhashtable_remove_fast(&head->ht, &mask->ht_node,
2078 mask_ht_params);
195c234d 2079 return ret;
77b9900e
JP		 2080}
2081
2082static int fl_set_parms(struct net *net, struct tcf_proto *tp,
2083 struct cls_fl_filter *f, struct fl_flow_mask *mask,
2084 unsigned long base, struct nlattr **tb,
695176bf 2085 struct nlattr *est,
c86e0209
BZ		 2086 struct fl_flow_tmplt *tmplt,
2087 u32 flags, u32 fl_flags,
50a56190 2088 struct netlink_ext_ack *extack)
77b9900e 2089{
77b9900e
JP		 2090 int err;
2091
c86e0209
BZ		 2092 err = tcf_exts_validate_ex(net, tp, tb, est, &f->exts, flags,
2093 fl_flags, extack);
77b9900e
JP		 2094 if (err < 0)
2095 return err;
2096
2097 if (tb[TCA_FLOWER_CLASSID]) {
2098 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
695176bf 2099 if (flags & TCA_ACT_FLAGS_NO_RTNL)
c24e43d8 2100 rtnl_lock();
77b9900e 2101 tcf_bind_filter(tp, &f->res, base);
695176bf 2102 if (flags & TCA_ACT_FLAGS_NO_RTNL)
c24e43d8 2103 rtnl_unlock();
77b9900e
JP		 2104 }
2105
1057c55f 2106 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
77b9900e 2107 if (err)
45507529 2108 return err;
77b9900e
JP		 2109
2110 fl_mask_update_range(mask);
2111 fl_set_masked_key(&f->mkey, &f->key, mask);
2112
b95ec7eb
JP		 2113 if (!fl_mask_fits_tmplt(tmplt, mask)) {
2114 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
2115 return -EINVAL;
2116 }
2117
77b9900e 2118 return 0;
77b9900e
JP		 2119}
2120
1f17f774
VB		 2121static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
2122 struct cls_fl_filter *fold,
2123 bool *in_ht)
2124{
2125 struct fl_flow_mask *mask = fnew->mask;
2126 int err;
2127
9e35552a
VB		 2128 err = rhashtable_lookup_insert_fast(&mask->ht,
2129 &fnew->ht_node,
2130 mask->filter_ht_params);
1f17f774
VB		 2131 if (err) {
2132 *in_ht = false;
2133 /* It is okay if filter with same key exists when
2134 * overwriting.
2135 */
2136 return fold && err == -EEXIST ? 0 : err;
2137 }
2138
2139 *in_ht = true;
2140 return 0;
2141}
2142
77b9900e
JP		 2143static int fl_change(struct net *net, struct sk_buff *in_skb,
2144 struct tcf_proto *tp, unsigned long base,
2145 u32 handle, struct nlattr **tca,
695176bf 2146 void **arg, u32 flags,
12db03b6 2147 struct netlink_ext_ack *extack)
77b9900e 2148{
e474619a 2149 struct cls_fl_head *head = fl_head_dereference(tp);
695176bf 2150 bool rtnl_held = !(flags & TCA_ACT_FLAGS_NO_RTNL);
8113c095 2151 struct cls_fl_filter *fold = *arg;
77b9900e 2152 struct cls_fl_filter *fnew;
2cddd201 2153 struct fl_flow_mask *mask;
39b7b6a6 2154 struct nlattr **tb;
1f17f774 2155 bool in_ht;
77b9900e
JP		 2156 int err;
2157
06177558
VB		 2158 if (!tca[TCA_OPTIONS]) {
2159 err = -EINVAL;
2160 goto errout_fold;
2161 }
77b9900e 2162
2cddd201 2163 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
06177558
VB		 2164 if (!mask) {
2165 err = -ENOBUFS;
2166 goto errout_fold;
2167 }
39b7b6a6 2168
2cddd201
IV		 2169 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2170 if (!tb) {
2171 err = -ENOBUFS;
2172 goto errout_mask_alloc;
2173 }
2174
8cb08174
JB		 2175 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2176 tca[TCA_OPTIONS], fl_policy, NULL);
77b9900e 2177 if (err < 0)
39b7b6a6 2178 goto errout_tb;
77b9900e 2179
39b7b6a6
AB		 2180 if (fold && handle && fold->handle != handle) {
2181 err = -EINVAL;
2182 goto errout_tb;
2183 }
77b9900e
JP		 2184
2185 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
39b7b6a6
AB		 2186 if (!fnew) {
2187 err = -ENOBUFS;
2188 goto errout_tb;
2189 }
c049d56e 2190 INIT_LIST_HEAD(&fnew->hw_list);
06177558 2191 refcount_set(&fnew->refcnt, 1);
77b9900e 2192
14215108 2193 err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0);
b9a24bb7
WC		 2194 if (err < 0)
2195 goto errout;
77b9900e 2196
e69985c6
AV		 2197 if (tb[TCA_FLOWER_FLAGS]) {
2198 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
2199
2200 if (!tc_flags_valid(fnew->flags)) {
2201 err = -EINVAL;
ecb3dea4 2202 goto errout;
e69985c6
AV		 2203 }
2204 }
5b33f488 2205
695176bf 2206 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE],
c86e0209
BZ		 2207 tp->chain->tmplt_priv, flags, fnew->flags,
2208 extack);
77b9900e 2209 if (err)
ecb3dea4 2210 goto errout;
77b9900e 2211
2cddd201 2212 err = fl_check_assign_mask(head, fnew, fold, mask);
77b9900e 2213 if (err)
ecb3dea4
VB		 2214 goto errout;
2215
1f17f774
VB		 2216 err = fl_ht_insert_unique(fnew, fold, &in_ht);
2217 if (err)
2218 goto errout_mask;
2219
79685219 2220 if (!tc_skip_hw(fnew->flags)) {
c24e43d8 2221 err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack);
79685219 2222 if (err)
1f17f774 2223 goto errout_ht;
79685219 2224 }
5b33f488 2225
55593960
OG		 2226 if (!tc_in_hw(fnew->flags))
2227 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
2228
3d81e711
VB		 2229 spin_lock(&tp->lock);
2230
272ffaad
VB		 2231 /* tp was deleted concurrently. -EAGAIN will cause caller to lookup
2232 * proto again or create new one, if necessary.
2233 */
2234 if (tp->deleting) {
2235 err = -EAGAIN;
2236 goto errout_hw;
2237 }
2238
5b33f488 2239 if (fold) {
b2552b8c
VB		 2240 /* Fold filter was deleted concurrently. Retry lookup. */
2241 if (fold->deleted) {
2242 err = -EAGAIN;
2243 goto errout_hw;
2244 }
2245
620da486
VB		 2246 fnew->handle = handle;
2247
1f17f774
VB		 2248 if (!in_ht) {
2249 struct rhashtable_params params =
2250 fnew->mask->filter_ht_params;
2251
2252 err = rhashtable_insert_fast(&fnew->mask->ht,
2253 &fnew->ht_node,
2254 params);
2255 if (err)
2256 goto errout_hw;
2257 in_ht = true;
2258 }
620da486 2259
c049d56e 2260 refcount_inc(&fnew->refcnt);
599d2570
RD		 2261 rhashtable_remove_fast(&fold->mask->ht,
2262 &fold->ht_node,
2263 fold->mask->filter_ht_params);
234a4624 2264 idr_replace(&head->handle_idr, fnew, fnew->handle);
ff3532f2 2265 list_replace_rcu(&fold->list, &fnew->list);
b2552b8c 2266 fold->deleted = true;
620da486 2267
3d81e711
VB		 2268 spin_unlock(&tp->lock);
2269
9994677c 2270 fl_mask_put(head, fold->mask);
620da486 2271 if (!tc_skip_hw(fold->flags))
c24e43d8 2272 fl_hw_destroy_filter(tp, fold, rtnl_held, NULL);
77b9900e 2273 tcf_unbind_filter(tp, &fold->res);
06177558
VB		 2274 /* Caller holds reference to fold, so refcnt is always > 0
2275 * after this.
2276 */
2277 refcount_dec(&fold->refcnt);
2278 __fl_put(fold);
77b9900e 2279 } else {
620da486
VB		 2280 if (handle) {
2281 /* user specifies a handle and it doesn't exist */
2282 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2283 handle, GFP_ATOMIC);
9a2d9389
VB		 2284
2285 /* Filter with specified handle was concurrently
2286 * inserted after initial check in cls_api. This is not
2287 * necessarily an error if NLM_F_EXCL is not set in
2288 * message flags. Returning EAGAIN will cause cls_api to
2289 * try to update concurrently inserted rule.
2290 */
2291 if (err == -ENOSPC)
2292 err = -EAGAIN;
620da486
VB		 2293 } else {
2294 handle = 1;
2295 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2296 INT_MAX, GFP_ATOMIC);
2297 }
2298 if (err)
2299 goto errout_hw;
2300
c049d56e 2301 refcount_inc(&fnew->refcnt);
620da486 2302 fnew->handle = handle;
05cd271f 2303 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
3d81e711 2304 spin_unlock(&tp->lock);
77b9900e
JP		 2305 }
2306
620da486
VB		 2307 *arg = fnew;
2308
39b7b6a6 2309 kfree(tb);
99815f50 2310 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
77b9900e
JP		 2311 return 0;
2312
c049d56e
VB		 2313errout_ht:
2314 spin_lock(&tp->lock);
620da486 2315errout_hw:
c049d56e 2316 fnew->deleted = true;
3d81e711 2317 spin_unlock(&tp->lock);
620da486 2318 if (!tc_skip_hw(fnew->flags))
c24e43d8 2319 fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL);
1f17f774
VB		 2320 if (in_ht)
2321 rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
2322 fnew->mask->filter_ht_params);
ecb3dea4 2323errout_mask:
9994677c 2324 fl_mask_put(head, fnew->mask);
77b9900e 2325errout:
c049d56e 2326 __fl_put(fnew);
39b7b6a6
AB		 2327errout_tb:
2328 kfree(tb);
2cddd201 2329errout_mask_alloc:
99815f50 2330 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
06177558
VB		 2331errout_fold:
2332 if (fold)
2333 __fl_put(fold);
77b9900e
JP		 2334 return err;
2335}
2336
571acf21 2337static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
12db03b6 2338 bool rtnl_held, struct netlink_ext_ack *extack)
77b9900e 2339{
e474619a 2340 struct cls_fl_head *head = fl_head_dereference(tp);
8113c095 2341 struct cls_fl_filter *f = arg;
b2552b8c
VB		 2342 bool last_on_mask;
2343 int err = 0;
77b9900e 2344
c24e43d8 2345 err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack);
05cd271f 2346 *last = list_empty(&head->masks);
06177558
VB		 2347 __fl_put(f);
2348
b2552b8c 2349 return err;
77b9900e
JP		 2350}
2351
12db03b6
VB		 2352static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
2353 bool rtnl_held)
77b9900e 2354{
d39d7149
CW		 2355 struct cls_fl_head *head = fl_head_dereference(tp);
2356 unsigned long id = arg->cookie, tmp;
77b9900e 2357 struct cls_fl_filter *f;
05cd271f 2358
01683a14
VB		 2359 arg->count = arg->skip;
2360
d5ef1906 2361 rcu_read_lock();
d39d7149
CW		 2362 idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
2363 /* don't return filters that are being deleted */
2364 if (!refcount_inc_not_zero(&f->refcnt))
2365 continue;
d5ef1906
VB		 2366 rcu_read_unlock();
2367
01683a14 2368 if (arg->fn(tp, f, arg) < 0) {
06177558 2369 __fl_put(f);
01683a14 2370 arg->stop = 1;
d5ef1906 2371 rcu_read_lock();
01683a14 2372 break;
05cd271f 2373 }
06177558 2374 __fl_put(f);
01683a14 2375 arg->count++;
d5ef1906 2376 rcu_read_lock();
77b9900e 2377 }
d5ef1906 2378 rcu_read_unlock();
d39d7149 2379 arg->cookie = id;
77b9900e
JP		 2380}
2381
c049d56e
VB		 2382static struct cls_fl_filter *
2383fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add)
2384{
2385 struct cls_fl_head *head = fl_head_dereference(tp);
2386
2387 spin_lock(&tp->lock);
2388 if (list_empty(&head->hw_filters)) {
2389 spin_unlock(&tp->lock);
2390 return NULL;
2391 }
2392
2393 if (!f)
2394 f = list_entry(&head->hw_filters, struct cls_fl_filter,
2395 hw_list);
2396 list_for_each_entry_continue(f, &head->hw_filters, hw_list) {
2397 if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) {
2398 spin_unlock(&tp->lock);
2399 return f;
2400 }
2401 }
2402
2403 spin_unlock(&tp->lock);
2404 return NULL;
2405}
2406
a7323311 2407static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
31533cba
JH		 2408 void *cb_priv, struct netlink_ext_ack *extack)
2409{
31533cba 2410 struct tcf_block *block = tp->chain->block;
f9e30088 2411 struct flow_cls_offload cls_flower = {};
c049d56e 2412 struct cls_fl_filter *f = NULL;
31533cba
JH		 2413 int err;
2414
c049d56e
VB		 2415 /* hw_filters list can only be changed by hw offload functions after
2416 * obtaining rtnl lock. Make sure it is not changed while reoffload is
2417 * iterating it.
2418 */
2419 ASSERT_RTNL();
3a7b6861 2420
c049d56e 2421 while ((f = fl_get_next_hw_filter(tp, f, add))) {
95e27a4d
JH		 2422 cls_flower.rule =
2423 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
2424 if (!cls_flower.rule) {
2425 __fl_put(f);
2426 return -ENOMEM;
2427 }
31533cba 2428
95e27a4d 2429 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags,
d6787147 2430 extack);
95e27a4d 2431 cls_flower.command = add ?
f9e30088 2432 FLOW_CLS_REPLACE : FLOW_CLS_DESTROY;
95e27a4d
JH		 2433 cls_flower.cookie = (unsigned long)f;
2434 cls_flower.rule->match.dissector = &f->mask->dissector;
2435 cls_flower.rule->match.mask = &f->mask->key;
2436 cls_flower.rule->match.key = &f->mkey;
2437
c2ccf84e
IS		 2438 err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts,
2439 cls_flower.common.extack);
95e27a4d 2440 if (err) {
8f256622 2441 kfree(cls_flower.rule);
95e27a4d 2442 if (tc_skip_sw(f->flags)) {
95e27a4d
JH		 2443 __fl_put(f);
2444 return err;
31533cba 2445 }
95e27a4d
JH		 2446 goto next_flow;
2447 }
31533cba 2448
95e27a4d
JH		 2449 cls_flower.classid = f->res.classid;
2450
40119211
VB		 2451 err = tc_setup_cb_reoffload(block, tp, add, cb,
2452 TC_SETUP_CLSFLOWER, &cls_flower,
2453 cb_priv, &f->flags,
2454 &f->in_hw_count);
9c1c0e12 2455 tc_cleanup_offload_action(&cls_flower.rule->action);
95e27a4d
JH		 2456 kfree(cls_flower.rule);
2457
2458 if (err) {
40119211
VB		 2459 __fl_put(f);
2460 return err;
31533cba 2461 }
95e27a4d 2462next_flow:
95e27a4d 2463 __fl_put(f);
31533cba
JH		 2464 }
2465
2466 return 0;
2467}
2468
a449a3e7
VB		 2469static void fl_hw_add(struct tcf_proto *tp, void *type_data)
2470{
2471 struct flow_cls_offload *cls_flower = type_data;
2472 struct cls_fl_filter *f =
2473 (struct cls_fl_filter *) cls_flower->cookie;
2474 struct cls_fl_head *head = fl_head_dereference(tp);
2475
2476 spin_lock(&tp->lock);
2477 list_add(&f->hw_list, &head->hw_filters);
2478 spin_unlock(&tp->lock);
2479}
2480
2481static void fl_hw_del(struct tcf_proto *tp, void *type_data)
2482{
2483 struct flow_cls_offload *cls_flower = type_data;
2484 struct cls_fl_filter *f =
2485 (struct cls_fl_filter *) cls_flower->cookie;
2486
2487 spin_lock(&tp->lock);
2488 if (!list_empty(&f->hw_list))
2489 list_del_init(&f->hw_list);
2490 spin_unlock(&tp->lock);
2491}
2492
8f256622
PNA		 2493static int fl_hw_create_tmplt(struct tcf_chain *chain,
2494 struct fl_flow_tmplt *tmplt)
34738452 2495{
f9e30088 2496 struct flow_cls_offload cls_flower = {};
34738452 2497 struct tcf_block *block = chain->block;
34738452 2498
e3ab786b 2499 cls_flower.rule = flow_rule_alloc(0);
8f256622
PNA		 2500 if (!cls_flower.rule)
2501 return -ENOMEM;
2502
34738452 2503 cls_flower.common.chain_index = chain->index;
f9e30088 2504 cls_flower.command = FLOW_CLS_TMPLT_CREATE;
34738452 2505 cls_flower.cookie = (unsigned long) tmplt;
8f256622
PNA		 2506 cls_flower.rule->match.dissector = &tmplt->dissector;
2507 cls_flower.rule->match.mask = &tmplt->mask;
2508 cls_flower.rule->match.key = &tmplt->dummy_key;
34738452
JP		 2509
2510 /* We don't care if driver (any of them) fails to handle this
2511 * call. It serves just as a hint for it.
2512 */
40119211 2513 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
8f256622
PNA		 2514 kfree(cls_flower.rule);
2515
2516 return 0;
34738452
JP		 2517}
2518
2519static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
2520 struct fl_flow_tmplt *tmplt)
2521{
f9e30088 2522 struct flow_cls_offload cls_flower = {};
34738452
JP		 2523 struct tcf_block *block = chain->block;
2524
2525 cls_flower.common.chain_index = chain->index;
f9e30088 2526 cls_flower.command = FLOW_CLS_TMPLT_DESTROY;
34738452
JP		 2527 cls_flower.cookie = (unsigned long) tmplt;
2528
40119211 2529 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
34738452
JP		 2530}
2531
b95ec7eb
JP		 2532static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
2533 struct nlattr **tca,
2534 struct netlink_ext_ack *extack)
2535{
2536 struct fl_flow_tmplt *tmplt;
2537 struct nlattr **tb;
2538 int err;
2539
2540 if (!tca[TCA_OPTIONS])
2541 return ERR_PTR(-EINVAL);
2542
2543 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2544 if (!tb)
2545 return ERR_PTR(-ENOBUFS);
8cb08174
JB		 2546 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2547 tca[TCA_OPTIONS], fl_policy, NULL);
b95ec7eb
JP		 2548 if (err)
2549 goto errout_tb;
2550
2551 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
1cbc36a5
DC		 2552 if (!tmplt) {
2553 err = -ENOMEM;
b95ec7eb 2554 goto errout_tb;
1cbc36a5 2555 }
b95ec7eb
JP		 2556 tmplt->chain = chain;
2557 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
2558 if (err)
2559 goto errout_tmplt;
b95ec7eb
JP		 2560
2561 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
2562
8f256622
PNA		 2563 err = fl_hw_create_tmplt(chain, tmplt);
2564 if (err)
2565 goto errout_tmplt;
34738452 2566
8f256622 2567 kfree(tb);
b95ec7eb
JP		 2568 return tmplt;
2569
2570errout_tmplt:
2571 kfree(tmplt);
2572errout_tb:
2573 kfree(tb);
2574 return ERR_PTR(err);
2575}
2576
ec3ed293
VB		 2577static void fl_tmplt_destroy(void *tmplt_priv)
2578{
2579 struct fl_flow_tmplt *tmplt = tmplt_priv;
2580
95278dda
CW		 2581 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
2582 kfree(tmplt);
ec3ed293
VB		 2583}
2584
77b9900e
JP		 2585static int fl_dump_key_val(struct sk_buff *skb,
2586 void *val, int val_type,
2587 void *mask, int mask_type, int len)
2588{
2589 int err;
2590
2591 if (!memchr_inv(mask, 0, len))
2592 return 0;
2593 err = nla_put(skb, val_type, len, val);
2594 if (err)
2595 return err;
2596 if (mask_type != TCA_FLOWER_UNSPEC) {
2597 err = nla_put(skb, mask_type, len, mask);
2598 if (err)
2599 return err;
2600 }
2601 return 0;
2602}
2603
5c72299f
AN		 2604static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
2605 struct fl_flow_key *mask)
2606{
8ffb055b
YK		 2607 if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst,
2608 TCA_FLOWER_KEY_PORT_DST_MIN,
2609 &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC,
2610 sizeof(key->tp_range.tp_min.dst)) ||
2611 fl_dump_key_val(skb, &key->tp_range.tp_max.dst,
2612 TCA_FLOWER_KEY_PORT_DST_MAX,
2613 &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC,
2614 sizeof(key->tp_range.tp_max.dst)) ||
2615 fl_dump_key_val(skb, &key->tp_range.tp_min.src,
2616 TCA_FLOWER_KEY_PORT_SRC_MIN,
2617 &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC,
2618 sizeof(key->tp_range.tp_min.src)) ||
2619 fl_dump_key_val(skb, &key->tp_range.tp_max.src,
2620 TCA_FLOWER_KEY_PORT_SRC_MAX,
2621 &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC,
2622 sizeof(key->tp_range.tp_max.src)))
5c72299f
AN		 2623 return -1;
2624
2625 return 0;
2626}
2627
61aec25a
GN		 2628static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb,
2629 struct flow_dissector_key_mpls *mpls_key,
2630 struct flow_dissector_key_mpls *mpls_mask,
2631 u8 lse_index)
2632{
2633 struct flow_dissector_mpls_lse *lse_mask = &mpls_mask->ls[lse_index];
2634 struct flow_dissector_mpls_lse *lse_key = &mpls_key->ls[lse_index];
2635 int err;
2636
2637 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH,
2638 lse_index + 1);
2639 if (err)
2640 return err;
2641
2642 if (lse_mask->mpls_ttl) {
2643 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL,
2644 lse_key->mpls_ttl);
2645 if (err)
2646 return err;
2647 }
2648 if (lse_mask->mpls_bos) {
2649 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS,
2650 lse_key->mpls_bos);
2651 if (err)
2652 return err;
2653 }
2654 if (lse_mask->mpls_tc) {
2655 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TC,
2656 lse_key->mpls_tc);
2657 if (err)
2658 return err;
2659 }
2660 if (lse_mask->mpls_label) {
7fdd375e
GN		 2661 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL,
2662 lse_key->mpls_label);
61aec25a
GN		 2663 if (err)
2664 return err;
2665 }
2666
2667 return 0;
2668}
2669
2670static int fl_dump_key_mpls_opts(struct sk_buff *skb,
2671 struct flow_dissector_key_mpls *mpls_key,
2672 struct flow_dissector_key_mpls *mpls_mask)
2673{
2674 struct nlattr *opts;
2675 struct nlattr *lse;
2676 u8 lse_index;
2677 int err;
2678
2679 opts = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS);
2680 if (!opts)
2681 return -EMSGSIZE;
2682
2683 for (lse_index = 0; lse_index < FLOW_DIS_MPLS_MAX; lse_index++) {
2684 if (!(mpls_mask->used_lses & 1 << lse_index))
2685 continue;
2686
2687 lse = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS_LSE);
2688 if (!lse) {
2689 err = -EMSGSIZE;
2690 goto err_opts;
2691 }
2692
2693 err = fl_dump_key_mpls_opt_lse(skb, mpls_key, mpls_mask,
2694 lse_index);
2695 if (err)
2696 goto err_opts_lse;
2697 nla_nest_end(skb, lse);
2698 }
2699 nla_nest_end(skb, opts);
2700
2701 return 0;
2702
2703err_opts_lse:
2704 nla_nest_cancel(skb, lse);
2705err_opts:
2706 nla_nest_cancel(skb, opts);
2707
2708 return err;
2709}
2710
a577d8f7
BL		 2711static int fl_dump_key_mpls(struct sk_buff *skb,
2712 struct flow_dissector_key_mpls *mpls_key,
2713 struct flow_dissector_key_mpls *mpls_mask)
2714{
58cff782
GN		 2715 struct flow_dissector_mpls_lse *lse_mask;
2716 struct flow_dissector_mpls_lse *lse_key;
a577d8f7
BL		 2717 int err;
2718
61aec25a 2719 if (!mpls_mask->used_lses)
a577d8f7 2720 return 0;
58cff782
GN		 2721
2722 lse_mask = &mpls_mask->ls[0];
2723 lse_key = &mpls_key->ls[0];
2724
61aec25a
GN		 2725 /* For backward compatibility, don't use the MPLS nested attributes if
2726 * the rule can be expressed using the old attributes.
2727 */
2728 if (mpls_mask->used_lses & ~1 ||
2729 (!lse_mask->mpls_ttl && !lse_mask->mpls_bos &&
2730 !lse_mask->mpls_tc && !lse_mask->mpls_label))
2731 return fl_dump_key_mpls_opts(skb, mpls_key, mpls_mask);
2732
58cff782 2733 if (lse_mask->mpls_ttl) {
a577d8f7 2734 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
58cff782 2735 lse_key->mpls_ttl);
a577d8f7
BL		 2736 if (err)
2737 return err;
2738 }
58cff782 2739 if (lse_mask->mpls_tc) {
a577d8f7 2740 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
58cff782 2741 lse_key->mpls_tc);
a577d8f7
BL		 2742 if (err)
2743 return err;
2744 }
58cff782 2745 if (lse_mask->mpls_label) {
a577d8f7 2746 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
58cff782 2747 lse_key->mpls_label);
a577d8f7
BL		 2748 if (err)
2749 return err;
2750 }
58cff782 2751 if (lse_mask->mpls_bos) {
a577d8f7 2752 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
58cff782 2753 lse_key->mpls_bos);
a577d8f7
BL		 2754 if (err)
2755 return err;
2756 }
2757 return 0;
2758}
2759
0e2c17b6 2760static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
4d80cc0a
OG		 2761 struct flow_dissector_key_ip *key,
2762 struct flow_dissector_key_ip *mask)
2763{
0e2c17b6
OG		 2764 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
2765 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
2766 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
2767 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
2768
2769 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
2770 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
4d80cc0a
OG		 2771 return -1;
2772
2773 return 0;
2774}
2775
9399ae9a 2776static int fl_dump_key_vlan(struct sk_buff *skb,
d64efd09 2777 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 2778 struct flow_dissector_key_vlan *vlan_key,
2779 struct flow_dissector_key_vlan *vlan_mask)
2780{
2781 int err;
2782
2783 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
2784 return 0;
2785 if (vlan_mask->vlan_id) {
d64efd09 2786 err = nla_put_u16(skb, vlan_id_key,
9399ae9a
HHZ		 2787 vlan_key->vlan_id);
2788 if (err)
2789 return err;
2790 }
2791 if (vlan_mask->vlan_priority) {
d64efd09 2792 err = nla_put_u8(skb, vlan_prio_key,
9399ae9a
HHZ		 2793 vlan_key->vlan_priority);
2794 if (err)
2795 return err;
2796 }
2797 return 0;
2798}
2799
faa3ffce
OG		 2800static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
2801 u32 *flower_key, u32 *flower_mask,
2802 u32 flower_flag_bit, u32 dissector_flag_bit)
2803{
2804 if (dissector_mask & dissector_flag_bit) {
2805 *flower_mask |= flower_flag_bit;
2806 if (dissector_key & dissector_flag_bit)
2807 *flower_key |= flower_flag_bit;
2808 }
2809}
2810
2811static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
2812{
2813 u32 key, mask;
2814 __be32 _key, _mask;
2815 int err;
2816
2817 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
2818 return 0;
2819
2820 key = 0;
2821 mask = 0;
2822
2823 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2824 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 2825 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2826 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
2827 FLOW_DIS_FIRST_FRAG);
faa3ffce
OG		 2828
2829 _key = cpu_to_be32(key);
2830 _mask = cpu_to_be32(mask);
2831
2832 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
2833 if (err)
2834 return err;
2835
2836 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
2837}
2838
0a6e7778
PJV		 2839static int fl_dump_key_geneve_opt(struct sk_buff *skb,
2840 struct flow_dissector_key_enc_opts *enc_opts)
2841{
2842 struct geneve_opt *opt;
2843 struct nlattr *nest;
2844 int opt_off = 0;
2845
ae0be8de 2846 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
0a6e7778
PJV		 2847 if (!nest)
2848 goto nla_put_failure;
2849
2850 while (enc_opts->len > opt_off) {
2851 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
2852
2853 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
2854 opt->opt_class))
2855 goto nla_put_failure;
2856 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
2857 opt->type))
2858 goto nla_put_failure;
2859 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
2860 opt->length * 4, opt->opt_data))
2861 goto nla_put_failure;
2862
2863 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
2864 }
2865 nla_nest_end(skb, nest);
2866 return 0;
2867
2868nla_put_failure:
2869 nla_nest_cancel(skb, nest);
2870 return -EMSGSIZE;
2871}
2872
d8f9dfae
XL		 2873static int fl_dump_key_vxlan_opt(struct sk_buff *skb,
2874 struct flow_dissector_key_enc_opts *enc_opts)
2875{
2876 struct vxlan_metadata *md;
2877 struct nlattr *nest;
2878
2879 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN);
2880 if (!nest)
2881 goto nla_put_failure;
2882
2883 md = (struct vxlan_metadata *)&enc_opts->data[0];
2884 if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp))
2885 goto nla_put_failure;
2886
2887 nla_nest_end(skb, nest);
2888 return 0;
2889
2890nla_put_failure:
2891 nla_nest_cancel(skb, nest);
2892 return -EMSGSIZE;
2893}
2894
79b1011c
XL		 2895static int fl_dump_key_erspan_opt(struct sk_buff *skb,
2896 struct flow_dissector_key_enc_opts *enc_opts)
2897{
2898 struct erspan_metadata *md;
2899 struct nlattr *nest;
2900
2901 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN);
2902 if (!nest)
2903 goto nla_put_failure;
2904
2905 md = (struct erspan_metadata *)&enc_opts->data[0];
2906 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version))
2907 goto nla_put_failure;
2908
2909 if (md->version == 1 &&
2910 nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index))
2911 goto nla_put_failure;
2912
2913 if (md->version == 2 &&
2914 (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR,
2915 md->u.md2.dir) ||
2916 nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID,
2917 get_hwid(&md->u.md2))))
2918 goto nla_put_failure;
2919
2920 nla_nest_end(skb, nest);
2921 return 0;
2922
2923nla_put_failure:
2924 nla_nest_cancel(skb, nest);
2925 return -EMSGSIZE;
2926}
2927
e3acda7a
WD		 2928static int fl_dump_key_gtp_opt(struct sk_buff *skb,
2929 struct flow_dissector_key_enc_opts *enc_opts)
2930
2931{
2932 struct gtp_pdu_session_info *session_info;
2933 struct nlattr *nest;
2934
2935 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GTP);
2936 if (!nest)
2937 goto nla_put_failure;
2938
2939 session_info = (struct gtp_pdu_session_info *)&enc_opts->data[0];
2940
2941 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE,
2942 session_info->pdu_type))
2943 goto nla_put_failure;
2944
2945 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GTP_QFI, session_info->qfi))
2946 goto nla_put_failure;
2947
2948 nla_nest_end(skb, nest);
2949 return 0;
2950
2951nla_put_failure:
2952 nla_nest_cancel(skb, nest);
2953 return -EMSGSIZE;
2954}
2955
e0ace68a
PB		 2956static int fl_dump_key_ct(struct sk_buff *skb,
2957 struct flow_dissector_key_ct *key,
2958 struct flow_dissector_key_ct *mask)
2959{
2960 if (IS_ENABLED(CONFIG_NF_CONNTRACK) &&
2961 fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
2962 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
2963 sizeof(key->ct_state)))
2964 goto nla_put_failure;
2965
2966 if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
2967 fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
2968 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
2969 sizeof(key->ct_zone)))
2970 goto nla_put_failure;
2971
2972 if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) &&
2973 fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
2974 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
2975 sizeof(key->ct_mark)))
2976 goto nla_put_failure;
2977
2978 if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
2979 fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
2980 &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
2981 sizeof(key->ct_labels)))
2982 goto nla_put_failure;
2983
2984 return 0;
2985
2986nla_put_failure:
2987 return -EMSGSIZE;
2988}
2989
0a6e7778
PJV		 2990static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
2991 struct flow_dissector_key_enc_opts *enc_opts)
2992{
2993 struct nlattr *nest;
2994 int err;
2995
2996 if (!enc_opts->len)
2997 return 0;
2998
ae0be8de 2999 nest = nla_nest_start_noflag(skb, enc_opt_type);
0a6e7778
PJV		 3000 if (!nest)
3001 goto nla_put_failure;
3002
3003 switch (enc_opts->dst_opt_type) {
3004 case TUNNEL_GENEVE_OPT:
3005 err = fl_dump_key_geneve_opt(skb, enc_opts);
3006 if (err)
3007 goto nla_put_failure;
3008 break;
d8f9dfae
XL		 3009 case TUNNEL_VXLAN_OPT:
3010 err = fl_dump_key_vxlan_opt(skb, enc_opts);
3011 if (err)
3012 goto nla_put_failure;
3013 break;
79b1011c
XL		 3014 case TUNNEL_ERSPAN_OPT:
3015 err = fl_dump_key_erspan_opt(skb, enc_opts);
3016 if (err)
3017 goto nla_put_failure;
3018 break;
e3acda7a
WD		 3019 case TUNNEL_GTP_OPT:
3020 err = fl_dump_key_gtp_opt(skb, enc_opts);
3021 if (err)
3022 goto nla_put_failure;
3023 break;
0a6e7778
PJV		 3024 default:
3025 goto nla_put_failure;
3026 }
3027 nla_nest_end(skb, nest);
3028 return 0;
3029
3030nla_put_failure:
3031 nla_nest_cancel(skb, nest);
3032 return -EMSGSIZE;
3033}
3034
3035static int fl_dump_key_enc_opt(struct sk_buff *skb,
3036 struct flow_dissector_key_enc_opts *key_opts,
3037 struct flow_dissector_key_enc_opts *msk_opts)
3038{
3039 int err;
3040
3041 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
3042 if (err)
3043 return err;
3044
3045 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
3046}
3047
f5749081
JP		 3048static int fl_dump_key(struct sk_buff *skb, struct net *net,
3049 struct fl_flow_key *key, struct fl_flow_key *mask)
77b9900e 3050{
8212ed77 3051 if (mask->meta.ingress_ifindex) {
77b9900e
JP		 3052 struct net_device *dev;
3053
8212ed77 3054 dev = __dev_get_by_index(net, key->meta.ingress_ifindex);
77b9900e
JP		 3055 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
3056 goto nla_put_failure;
3057 }
3058
3059 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
3060 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
3061 sizeof(key->eth.dst)) ||
3062 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
3063 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
3064 sizeof(key->eth.src)) ||
3065 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
3066 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
3067 sizeof(key->basic.n_proto)))
3068 goto nla_put_failure;
9399ae9a 3069
b4000312
BS		 3070 if (mask->num_of_vlans.num_of_vlans) {
3071 if (nla_put_u8(skb, TCA_FLOWER_KEY_NUM_OF_VLANS, key->num_of_vlans.num_of_vlans))
3072 goto nla_put_failure;
3073 }
3074
a577d8f7
BL		 3075 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
3076 goto nla_put_failure;
3077
d64efd09
JL		 3078 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
3079 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
9399ae9a
HHZ		 3080 goto nla_put_failure;
3081
d64efd09
JL		 3082 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
3083 TCA_FLOWER_KEY_CVLAN_PRIO,
3084 &key->cvlan, &mask->cvlan) ||
3085 (mask->cvlan.vlan_tpid &&
158abbf1
JL		 3086 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
3087 key->cvlan.vlan_tpid)))
d3069512
JL		 3088 goto nla_put_failure;
3089
5e9a0fe4 3090 if (mask->basic.n_proto) {
2105f700 3091 if (mask->cvlan.vlan_eth_type) {
5e9a0fe4
JL		 3092 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
3093 key->basic.n_proto))
3094 goto nla_put_failure;
2105f700 3095 } else if (mask->vlan.vlan_eth_type) {
5e9a0fe4 3096 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2105f700 3097 key->vlan.vlan_eth_type))
5e9a0fe4
JL		 3098 goto nla_put_failure;
3099 }
d64efd09
JL		 3100 }
3101
77b9900e
JP		 3102 if ((key->basic.n_proto == htons(ETH_P_IP) ||
3103 key->basic.n_proto == htons(ETH_P_IPV6)) &&
4d80cc0a 3104 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
77b9900e 3105 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
4d80cc0a 3106 sizeof(key->basic.ip_proto)) ||
0e2c17b6 3107 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
77b9900e
JP		 3108 goto nla_put_failure;
3109
5008750e
WD		 3110 if (mask->pppoe.session_id) {
3111 if (nla_put_be16(skb, TCA_FLOWER_KEY_PPPOE_SID,
3112 key->pppoe.session_id))
3113 goto nla_put_failure;
3114 }
3115 if (mask->basic.n_proto && mask->pppoe.ppp_proto) {
3116 if (nla_put_be16(skb, TCA_FLOWER_KEY_PPP_PROTO,
3117 key->pppoe.ppp_proto))
3118 goto nla_put_failure;
3119 }
3120
c3f83241 3121 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
77b9900e
JP		 3122 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
3123 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
3124 sizeof(key->ipv4.src)) ||
3125 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
3126 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
3127 sizeof(key->ipv4.dst))))
3128 goto nla_put_failure;
c3f83241 3129 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
77b9900e
JP		 3130 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
3131 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
3132 sizeof(key->ipv6.src)) ||
3133 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
3134 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
3135 sizeof(key->ipv6.dst))))
3136 goto nla_put_failure;
3137
3138 if (key->basic.ip_proto == IPPROTO_TCP &&
3139 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 3140 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 3141 sizeof(key->tp.src)) ||
3142 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 3143 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
fdfc7dd6
JP		 3144 sizeof(key->tp.dst)) ||
3145 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
3146 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
3147 sizeof(key->tcp.flags))))
77b9900e
JP		 3148 goto nla_put_failure;
3149 else if (key->basic.ip_proto == IPPROTO_UDP &&
3150 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 3151 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 3152 sizeof(key->tp.src)) ||
3153 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 3154 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
5976c5f4
SH		 3155 sizeof(key->tp.dst))))
3156 goto nla_put_failure;
3157 else if (key->basic.ip_proto == IPPROTO_SCTP &&
3158 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
3159 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
3160 sizeof(key->tp.src)) ||
3161 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
3162 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
77b9900e
JP		 3163 sizeof(key->tp.dst))))
3164 goto nla_put_failure;
7b684884
SH		 3165 else if (key->basic.n_proto == htons(ETH_P_IP) &&
3166 key->basic.ip_proto == IPPROTO_ICMP &&
3167 (fl_dump_key_val(skb, &key->icmp.type,
3168 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
3169 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
3170 sizeof(key->icmp.type)) ||
3171 fl_dump_key_val(skb, &key->icmp.code,
3172 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
3173 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
3174 sizeof(key->icmp.code))))
3175 goto nla_put_failure;
3176 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
3177 key->basic.ip_proto == IPPROTO_ICMPV6 &&
3178 (fl_dump_key_val(skb, &key->icmp.type,
3179 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
3180 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
3181 sizeof(key->icmp.type)) ||
3182 fl_dump_key_val(skb, &key->icmp.code,
3183 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
3184 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
3185 sizeof(key->icmp.code))))
3186 goto nla_put_failure;
99d31326
SH		 3187 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
3188 key->basic.n_proto == htons(ETH_P_RARP)) &&
3189 (fl_dump_key_val(skb, &key->arp.sip,
3190 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
3191 TCA_FLOWER_KEY_ARP_SIP_MASK,
3192 sizeof(key->arp.sip)) ||
3193 fl_dump_key_val(skb, &key->arp.tip,
3194 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
3195 TCA_FLOWER_KEY_ARP_TIP_MASK,
3196 sizeof(key->arp.tip)) ||
3197 fl_dump_key_val(skb, &key->arp.op,
3198 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
3199 TCA_FLOWER_KEY_ARP_OP_MASK,
3200 sizeof(key->arp.op)) ||
3201 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
3202 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
3203 sizeof(key->arp.sha)) ||
3204 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
3205 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
3206 sizeof(key->arp.tha))))
3207 goto nla_put_failure;
8b189ea0
WD		 3208 else if (key->basic.ip_proto == IPPROTO_L2TP &&
3209 fl_dump_key_val(skb, &key->l2tpv3.session_id,
3210 TCA_FLOWER_KEY_L2TPV3_SID,
3211 &mask->l2tpv3.session_id,
3212 TCA_FLOWER_UNSPEC,
3213 sizeof(key->l2tpv3.session_id)))
3214 goto nla_put_failure;
77b9900e 3215
5c72299f
AN		 3216 if ((key->basic.ip_proto == IPPROTO_TCP ||
3217 key->basic.ip_proto == IPPROTO_UDP ||
3218 key->basic.ip_proto == IPPROTO_SCTP) &&
3219 fl_dump_key_port_range(skb, key, mask))
3220 goto nla_put_failure;
3221
bc3103f1
AV		 3222 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
3223 (fl_dump_key_val(skb, &key->enc_ipv4.src,
3224 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
3225 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
3226 sizeof(key->enc_ipv4.src)) ||
3227 fl_dump_key_val(skb, &key->enc_ipv4.dst,
3228 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
3229 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
3230 sizeof(key->enc_ipv4.dst))))
3231 goto nla_put_failure;
3232 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
3233 (fl_dump_key_val(skb, &key->enc_ipv6.src,
3234 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
3235 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
3236 sizeof(key->enc_ipv6.src)) ||
3237 fl_dump_key_val(skb, &key->enc_ipv6.dst,
3238 TCA_FLOWER_KEY_ENC_IPV6_DST,
3239 &mask->enc_ipv6.dst,
3240 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
3241 sizeof(key->enc_ipv6.dst))))
3242 goto nla_put_failure;
3243
3244 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 3245 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
f4d997fd
HHZ		 3246 sizeof(key->enc_key_id)) ||
3247 fl_dump_key_val(skb, &key->enc_tp.src,
3248 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
3249 &mask->enc_tp.src,
3250 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
3251 sizeof(key->enc_tp.src)) ||
3252 fl_dump_key_val(skb, &key->enc_tp.dst,
3253 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
3254 &mask->enc_tp.dst,
3255 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
0e2c17b6 3256 sizeof(key->enc_tp.dst)) ||
0a6e7778
PJV		 3257 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
3258 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
bc3103f1
AV		 3259 goto nla_put_failure;
3260
e0ace68a
PB		 3261 if (fl_dump_key_ct(skb, &key->ct, &mask->ct))
3262 goto nla_put_failure;
3263
faa3ffce
OG		 3264 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
3265 goto nla_put_failure;
3266
5923b8f7
AL		 3267 if (fl_dump_key_val(skb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
3268 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
3269 sizeof(key->hash.hash)))
3270 goto nla_put_failure;
3271
f5749081
JP		 3272 return 0;
3273
3274nla_put_failure:
3275 return -EMSGSIZE;
3276}
3277
3278static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
12db03b6 3279 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
f5749081
JP		 3280{
3281 struct cls_fl_filter *f = fh;
3282 struct nlattr *nest;
3283 struct fl_flow_key *key, *mask;
3d81e711 3284 bool skip_hw;
f5749081
JP		 3285
3286 if (!f)
3287 return skb->len;
3288
3289 t->tcm_handle = f->handle;
3290
ae0be8de 3291 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
f5749081
JP		 3292 if (!nest)
3293 goto nla_put_failure;
3294
3d81e711
VB		 3295 spin_lock(&tp->lock);
3296
f5749081
JP		 3297 if (f->res.classid &&
3298 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
3d81e711 3299 goto nla_put_failure_locked;
f5749081
JP		 3300
3301 key = &f->key;
3302 mask = &f->mask->key;
3d81e711 3303 skip_hw = tc_skip_hw(f->flags);
f5749081
JP		 3304
3305 if (fl_dump_key(skb, net, key, mask))
3d81e711 3306 goto nla_put_failure_locked;
f5749081 3307
749e6720 3308 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3d81e711
VB		 3309 goto nla_put_failure_locked;
3310
3311 spin_unlock(&tp->lock);
3312
3313 if (!skip_hw)
c24e43d8 3314 fl_hw_update_stats(tp, f, rtnl_held);
e69985c6 3315
86c55361
VB		 3316 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
3317 goto nla_put_failure;
3318
77b9900e
JP		 3319 if (tcf_exts_dump(skb, &f->exts))
3320 goto nla_put_failure;
3321
3322 nla_nest_end(skb, nest);
3323
3324 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
3325 goto nla_put_failure;
3326
3327 return skb->len;
3328
3d81e711
VB		 3329nla_put_failure_locked:
3330 spin_unlock(&tp->lock);
77b9900e
JP		 3331nla_put_failure:
3332 nla_nest_cancel(skb, nest);
3333 return -1;
3334}
3335
0348451d
VB		 3336static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
3337 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3338{
3339 struct cls_fl_filter *f = fh;
3340 struct nlattr *nest;
3341 bool skip_hw;
3342
3343 if (!f)
3344 return skb->len;
3345
3346 t->tcm_handle = f->handle;
3347
3348 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3349 if (!nest)
3350 goto nla_put_failure;
3351
3352 spin_lock(&tp->lock);
3353
3354 skip_hw = tc_skip_hw(f->flags);
3355
3356 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3357 goto nla_put_failure_locked;
3358
3359 spin_unlock(&tp->lock);
3360
3361 if (!skip_hw)
3362 fl_hw_update_stats(tp, f, rtnl_held);
3363
3364 if (tcf_exts_terse_dump(skb, &f->exts))
3365 goto nla_put_failure;
3366
3367 nla_nest_end(skb, nest);
3368
3369 return skb->len;
3370
3371nla_put_failure_locked:
3372 spin_unlock(&tp->lock);
3373nla_put_failure:
3374 nla_nest_cancel(skb, nest);
3375 return -1;
3376}
3377
b95ec7eb
JP		 3378static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
3379{
3380 struct fl_flow_tmplt *tmplt = tmplt_priv;
3381 struct fl_flow_key *key, *mask;
3382 struct nlattr *nest;
3383
ae0be8de 3384 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
b95ec7eb
JP		 3385 if (!nest)
3386 goto nla_put_failure;
3387
3388 key = &tmplt->dummy_key;
3389 mask = &tmplt->mask;
3390
3391 if (fl_dump_key(skb, net, key, mask))
3392 goto nla_put_failure;
3393
3394 nla_nest_end(skb, nest);
3395
3396 return skb->len;
3397
3398nla_put_failure:
3399 nla_nest_cancel(skb, nest);
3400 return -EMSGSIZE;
3401}
3402
2e24cd75
CW		 3403static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q,
3404 unsigned long base)
07d79fc7
CW		 3405{
3406 struct cls_fl_filter *f = fh;
3407
cc9039a1 3408 tc_cls_bind_class(classid, cl, q, &f->res, base);
07d79fc7
CW		 3409}
3410
a5b72a08
DC		 3411static bool fl_delete_empty(struct tcf_proto *tp)
3412{
3413 struct cls_fl_head *head = fl_head_dereference(tp);
3414
3415 spin_lock(&tp->lock);
3416 tp->deleting = idr_is_empty(&head->handle_idr);
3417 spin_unlock(&tp->lock);
3418
3419 return tp->deleting;
3420}
3421
77b9900e
JP		 3422static struct tcf_proto_ops cls_fl_ops __read_mostly = {
3423 .kind = "flower",
3424 .classify = fl_classify,
3425 .init = fl_init,
3426 .destroy = fl_destroy,
3427 .get = fl_get,
06177558 3428 .put = fl_put,
77b9900e
JP		 3429 .change = fl_change,
3430 .delete = fl_delete,
a5b72a08 3431 .delete_empty = fl_delete_empty,
77b9900e 3432 .walk = fl_walk,
31533cba 3433 .reoffload = fl_reoffload,
a449a3e7
VB		 3434 .hw_add = fl_hw_add,
3435 .hw_del = fl_hw_del,
77b9900e 3436 .dump = fl_dump,
0348451d 3437 .terse_dump = fl_terse_dump,
07d79fc7 3438 .bind_class = fl_bind_class,
b95ec7eb
JP		 3439 .tmplt_create = fl_tmplt_create,
3440 .tmplt_destroy = fl_tmplt_destroy,
3441 .tmplt_dump = fl_tmplt_dump,
77b9900e 3442 .owner = THIS_MODULE,
92149190 3443 .flags = TCF_PROTO_OPS_DOIT_UNLOCKED,
77b9900e
JP		 3444};
3445
3446static int __init cls_fl_init(void)
3447{
3448 return register_tcf_proto_ops(&cls_fl_ops);
3449}
3450
3451static void __exit cls_fl_exit(void)
3452{
3453 unregister_tcf_proto_ops(&cls_fl_ops);
3454}
3455
3456module_init(cls_fl_init);
3457module_exit(cls_fl_exit);
3458
3459MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
3460MODULE_DESCRIPTION("Flower classifier");
3461MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)