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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
[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>
9f3101dc 30#include <net/tc_wrapper.h>
77b9900e 31
bc3103f1
AV		 32#include <net/dst.h>
33#include <net/dst_metadata.h>
34
e0ace68a
PB		 35#include <uapi/linux/netfilter/nf_conntrack_common.h>
36
1bcc51ac 37#define TCA_FLOWER_KEY_CT_FLAGS_MAX \
38 ((__TCA_FLOWER_KEY_CT_FLAGS_MAX - 1) << 1)
39#define TCA_FLOWER_KEY_CT_FLAGS_MASK \
40 (TCA_FLOWER_KEY_CT_FLAGS_MAX - 1)
41
77b9900e 42struct fl_flow_key {
8212ed77 43 struct flow_dissector_key_meta meta;
42aecaa9 44 struct flow_dissector_key_control control;
bc3103f1 45 struct flow_dissector_key_control enc_control;
77b9900e
JP		 46 struct flow_dissector_key_basic basic;
47 struct flow_dissector_key_eth_addrs eth;
9399ae9a 48 struct flow_dissector_key_vlan vlan;
d64efd09 49 struct flow_dissector_key_vlan cvlan;
77b9900e 50 union {
c3f83241 51 struct flow_dissector_key_ipv4_addrs ipv4;
77b9900e
JP		 52 struct flow_dissector_key_ipv6_addrs ipv6;
53 };
54 struct flow_dissector_key_ports tp;
7b684884 55 struct flow_dissector_key_icmp icmp;
99d31326 56 struct flow_dissector_key_arp arp;
bc3103f1
AV		 57 struct flow_dissector_key_keyid enc_key_id;
58 union {
59 struct flow_dissector_key_ipv4_addrs enc_ipv4;
60 struct flow_dissector_key_ipv6_addrs enc_ipv6;
61 };
f4d997fd 62 struct flow_dissector_key_ports enc_tp;
a577d8f7 63 struct flow_dissector_key_mpls mpls;
fdfc7dd6 64 struct flow_dissector_key_tcp tcp;
4d80cc0a 65 struct flow_dissector_key_ip ip;
0e2c17b6 66 struct flow_dissector_key_ip enc_ip;
0a6e7778 67 struct flow_dissector_key_enc_opts enc_opts;
83d85bb0 68 struct flow_dissector_key_ports_range tp_range;
e0ace68a 69 struct flow_dissector_key_ct ct;
5923b8f7 70 struct flow_dissector_key_hash hash;
b4000312 71 struct flow_dissector_key_num_of_vlans num_of_vlans;
5008750e 72 struct flow_dissector_key_pppoe pppoe;
8b189ea0 73 struct flow_dissector_key_l2tpv3 l2tpv3;
77b9900e
JP		 74} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
75
76struct fl_flow_mask_range {
77 unsigned short int start;
78 unsigned short int end;
79};
80
81struct fl_flow_mask {
82 struct fl_flow_key key;
83 struct fl_flow_mask_range range;
5c72299f 84 u32 flags;
05cd271f
PB		 85 struct rhash_head ht_node;
86 struct rhashtable ht;
87 struct rhashtable_params filter_ht_params;
88 struct flow_dissector dissector;
89 struct list_head filters;
44a5cd43 90 struct rcu_work rwork;
05cd271f 91 struct list_head list;
f48ef4d5 92 refcount_t refcnt;
77b9900e
JP		 93};
94
b95ec7eb
JP		 95struct fl_flow_tmplt {
96 struct fl_flow_key dummy_key;
97 struct fl_flow_key mask;
98 struct flow_dissector dissector;
99 struct tcf_chain *chain;
100};
101
77b9900e
JP		 102struct cls_fl_head {
103 struct rhashtable ht;
259e60f9 104 spinlock_t masks_lock; /* Protect masks list */
05cd271f 105 struct list_head masks;
c049d56e 106 struct list_head hw_filters;
aaa908ff 107 struct rcu_work rwork;
c15ab236 108 struct idr handle_idr;
77b9900e
JP		 109};
110
111struct cls_fl_filter {
05cd271f 112 struct fl_flow_mask *mask;
77b9900e
JP		 113 struct rhash_head ht_node;
114 struct fl_flow_key mkey;
115 struct tcf_exts exts;
116 struct tcf_result res;
117 struct fl_flow_key key;
118 struct list_head list;
c049d56e 119 struct list_head hw_list;
77b9900e 120 u32 handle;
e69985c6 121 u32 flags;
86c55361 122 u32 in_hw_count;
aaa908ff 123 struct rcu_work rwork;
7091d8c7 124 struct net_device *hw_dev;
06177558
VB		 125 /* Flower classifier is unlocked, which means that its reference counter
126 * can be changed concurrently without any kind of external
127 * synchronization. Use atomic reference counter to be concurrency-safe.
128 */
129 refcount_t refcnt;
b2552b8c 130 bool deleted;
77b9900e
JP		 131};
132
05cd271f
PB		 133static const struct rhashtable_params mask_ht_params = {
134 .key_offset = offsetof(struct fl_flow_mask, key),
135 .key_len = sizeof(struct fl_flow_key),
136 .head_offset = offsetof(struct fl_flow_mask, ht_node),
137 .automatic_shrinking = true,
138};
139
77b9900e
JP		 140static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
141{
142 return mask->range.end - mask->range.start;
143}
144
145static void fl_mask_update_range(struct fl_flow_mask *mask)
146{
147 const u8 *bytes = (const u8 *) &mask->key;
148 size_t size = sizeof(mask->key);
05cd271f 149 size_t i, first = 0, last;
77b9900e 150
05cd271f
PB		 151 for (i = 0; i < size; i++) {
152 if (bytes[i]) {
153 first = i;
154 break;
155 }
156 }
157 last = first;
158 for (i = size - 1; i != first; i--) {
77b9900e 159 if (bytes[i]) {
77b9900e 160 last = i;
05cd271f 161 break;
77b9900e
JP		 162 }
163 }
164 mask->range.start = rounddown(first, sizeof(long));
165 mask->range.end = roundup(last + 1, sizeof(long));
166}
167
168static void *fl_key_get_start(struct fl_flow_key *key,
169 const struct fl_flow_mask *mask)
170{
171 return (u8 *) key + mask->range.start;
172}
173
174static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
175 struct fl_flow_mask *mask)
176{
177 const long *lkey = fl_key_get_start(key, mask);
178 const long *lmask = fl_key_get_start(&mask->key, mask);
179 long *lmkey = fl_key_get_start(mkey, mask);
180 int i;
181
182 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
183 *lmkey++ = *lkey++ & *lmask++;
184}
185
b95ec7eb
JP		 186static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
187 struct fl_flow_mask *mask)
188{
189 const long *lmask = fl_key_get_start(&mask->key, mask);
190 const long *ltmplt;
191 int i;
192
193 if (!tmplt)
194 return true;
195 ltmplt = fl_key_get_start(&tmplt->mask, mask);
196 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
197 if (~*ltmplt++ & *lmask++)
198 return false;
199 }
200 return true;
201}
202
77b9900e
JP		 203static void fl_clear_masked_range(struct fl_flow_key *key,
204 struct fl_flow_mask *mask)
205{
206 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
207}
208
5c72299f
AN		 209static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter,
210 struct fl_flow_key *key,
211 struct fl_flow_key *mkey)
212{
6215afcb 213 u16 min_mask, max_mask, min_val, max_val;
5c72299f 214
6215afcb
VO		 215 min_mask = ntohs(filter->mask->key.tp_range.tp_min.dst);
216 max_mask = ntohs(filter->mask->key.tp_range.tp_max.dst);
217 min_val = ntohs(filter->key.tp_range.tp_min.dst);
218 max_val = ntohs(filter->key.tp_range.tp_max.dst);
5c72299f
AN		 219
220 if (min_mask && max_mask) {
6215afcb
VO		 221 if (ntohs(key->tp_range.tp.dst) < min_val ||
222 ntohs(key->tp_range.tp.dst) > max_val)
5c72299f
AN		 223 return false;
224
225 /* skb does not have min and max values */
8ffb055b
YK		 226 mkey->tp_range.tp_min.dst = filter->mkey.tp_range.tp_min.dst;
227 mkey->tp_range.tp_max.dst = filter->mkey.tp_range.tp_max.dst;
5c72299f
AN		 228 }
229 return true;
230}
231
232static bool fl_range_port_src_cmp(struct cls_fl_filter *filter,
233 struct fl_flow_key *key,
234 struct fl_flow_key *mkey)
235{
6215afcb 236 u16 min_mask, max_mask, min_val, max_val;
5c72299f 237
6215afcb
VO		 238 min_mask = ntohs(filter->mask->key.tp_range.tp_min.src);
239 max_mask = ntohs(filter->mask->key.tp_range.tp_max.src);
240 min_val = ntohs(filter->key.tp_range.tp_min.src);
241 max_val = ntohs(filter->key.tp_range.tp_max.src);
5c72299f
AN		 242
243 if (min_mask && max_mask) {
6215afcb
VO		 244 if (ntohs(key->tp_range.tp.src) < min_val ||
245 ntohs(key->tp_range.tp.src) > max_val)
5c72299f
AN		 246 return false;
247
248 /* skb does not have min and max values */
8ffb055b
YK		 249 mkey->tp_range.tp_min.src = filter->mkey.tp_range.tp_min.src;
250 mkey->tp_range.tp_max.src = filter->mkey.tp_range.tp_max.src;
5c72299f
AN		 251 }
252 return true;
253}
254
255static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask,
256 struct fl_flow_key *mkey)
a3308d8f 257{
05cd271f
PB		 258 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
259 mask->filter_ht_params);
a3308d8f
PB		 260}
261
5c72299f
AN		 262static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask,
263 struct fl_flow_key *mkey,
264 struct fl_flow_key *key)
265{
266 struct cls_fl_filter *filter, *f;
267
268 list_for_each_entry_rcu(filter, &mask->filters, list) {
269 if (!fl_range_port_dst_cmp(filter, key, mkey))
270 continue;
271
272 if (!fl_range_port_src_cmp(filter, key, mkey))
273 continue;
274
275 f = __fl_lookup(mask, mkey);
276 if (f)
277 return f;
278 }
279 return NULL;
280}
281
0af413bd
AB		 282static noinline_for_stack
283struct cls_fl_filter *fl_mask_lookup(struct fl_flow_mask *mask, struct fl_flow_key *key)
5c72299f 284{
0af413bd
AB		 285 struct fl_flow_key mkey;
286
287 fl_set_masked_key(&mkey, key, mask);
5c72299f 288 if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE))
0af413bd 289 return fl_lookup_range(mask, &mkey, key);
5c72299f 290
0af413bd 291 return __fl_lookup(mask, &mkey);
5c72299f
AN		 292}
293
e0ace68a
PB		 294static u16 fl_ct_info_to_flower_map[] = {
295 [IP_CT_ESTABLISHED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
296 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
297 [IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
298 TCA_FLOWER_KEY_CT_FLAGS_RELATED,
299 [IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
8c85d18c
PB		 300 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED |
301 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
e0ace68a 302 [IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
8c85d18c
PB		 303 TCA_FLOWER_KEY_CT_FLAGS_RELATED |
304 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
e0ace68a
PB		 305 [IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
306 TCA_FLOWER_KEY_CT_FLAGS_NEW,
307};
308
9f3101dc
PT		 309TC_INDIRECT_SCOPE int fl_classify(struct sk_buff *skb,
310 const struct tcf_proto *tp,
311 struct tcf_result *res)
77b9900e
JP		 312{
313 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
ec624fe7 314 bool post_ct = tc_skb_cb(skb)->post_ct;
38495958 315 u16 zone = tc_skb_cb(skb)->zone;
e0ace68a
PB		 316 struct fl_flow_key skb_key;
317 struct fl_flow_mask *mask;
318 struct cls_fl_filter *f;
77b9900e 319
05cd271f 320 list_for_each_entry_rcu(mask, &head->masks, list) {
8a9093c7 321 flow_dissector_init_keys(&skb_key.control, &skb_key.basic);
05cd271f 322 fl_clear_masked_range(&skb_key, mask);
bc3103f1 323
8212ed77 324 skb_flow_dissect_meta(skb, &mask->dissector, &skb_key);
05cd271f
PB		 325 /* skb_flow_dissect() does not set n_proto in case an unknown
326 * protocol, so do it rather here.
327 */
d7bf2ebe 328 skb_key.basic.n_proto = skb_protocol(skb, false);
05cd271f 329 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
e0ace68a
PB		 330 skb_flow_dissect_ct(skb, &mask->dissector, &skb_key,
331 fl_ct_info_to_flower_map,
7baf2429 332 ARRAY_SIZE(fl_ct_info_to_flower_map),
38495958 333 post_ct, zone);
5923b8f7 334 skb_flow_dissect_hash(skb, &mask->dissector, &skb_key);
6de6e46d
YK		 335 skb_flow_dissect(skb, &mask->dissector, &skb_key,
336 FLOW_DISSECTOR_F_STOP_BEFORE_ENCAP);
77b9900e 337
0af413bd 338 f = fl_mask_lookup(mask, &skb_key);
05cd271f
PB		 339 if (f && !tc_skip_sw(f->flags)) {
340 *res = f->res;
341 return tcf_exts_exec(skb, &f->exts, res);
342 }
77b9900e
JP		 343 }
344 return -1;
345}
346
347static int fl_init(struct tcf_proto *tp)
348{
349 struct cls_fl_head *head;
350
351 head = kzalloc(sizeof(*head), GFP_KERNEL);
352 if (!head)
353 return -ENOBUFS;
354
259e60f9 355 spin_lock_init(&head->masks_lock);
05cd271f 356 INIT_LIST_HEAD_RCU(&head->masks);
c049d56e 357 INIT_LIST_HEAD(&head->hw_filters);
77b9900e 358 rcu_assign_pointer(tp->root, head);
c15ab236 359 idr_init(&head->handle_idr);
77b9900e 360
05cd271f
PB		 361 return rhashtable_init(&head->ht, &mask_ht_params);
362}
363
99815f50 364static void fl_mask_free(struct fl_flow_mask *mask, bool mask_init_done)
44a5cd43 365{
99815f50
VB		 366 /* temporary masks don't have their filters list and ht initialized */
367 if (mask_init_done) {
368 WARN_ON(!list_empty(&mask->filters));
369 rhashtable_destroy(&mask->ht);
370 }
44a5cd43
PA		 371 kfree(mask);
372}
373
374static void fl_mask_free_work(struct work_struct *work)
375{
376 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
377 struct fl_flow_mask, rwork);
378
99815f50
VB		 379 fl_mask_free(mask, true);
380}
381
382static void fl_uninit_mask_free_work(struct work_struct *work)
383{
384 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
385 struct fl_flow_mask, rwork);
386
387 fl_mask_free(mask, false);
44a5cd43
PA		 388}
389
9994677c 390static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask)
05cd271f 391{
f48ef4d5 392 if (!refcount_dec_and_test(&mask->refcnt))
05cd271f
PB		 393 return false;
394
395 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
259e60f9
VB		 396
397 spin_lock(&head->masks_lock);
05cd271f 398 list_del_rcu(&mask->list);
259e60f9
VB		 399 spin_unlock(&head->masks_lock);
400
9994677c 401 tcf_queue_work(&mask->rwork, fl_mask_free_work);
05cd271f
PB		 402
403 return true;
77b9900e
JP		 404}
405
c049d56e
VB		 406static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp)
407{
408 /* Flower classifier only changes root pointer during init and destroy.
409 * Users must obtain reference to tcf_proto instance before calling its
410 * API, so tp->root pointer is protected from concurrent call to
411 * fl_destroy() by reference counting.
412 */
413 return rcu_dereference_raw(tp->root);
414}
415
0dadc117
CW		 416static void __fl_destroy_filter(struct cls_fl_filter *f)
417{
418 tcf_exts_destroy(&f->exts);
419 tcf_exts_put_net(&f->exts);
420 kfree(f);
421}
422
0552c8af 423static void fl_destroy_filter_work(struct work_struct *work)
77b9900e 424{
aaa908ff
CW		 425 struct cls_fl_filter *f = container_of(to_rcu_work(work),
426 struct cls_fl_filter, rwork);
77b9900e 427
0dadc117 428 __fl_destroy_filter(f);
0552c8af
CW		 429}
430
1b0f8037 431static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
c24e43d8 432 bool rtnl_held, struct netlink_ext_ack *extack)
5b33f488 433{
208c0f4b 434 struct tcf_block *block = tp->chain->block;
f9e30088 435 struct flow_cls_offload cls_flower = {};
5b33f488 436
d6787147 437 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
f9e30088 438 cls_flower.command = FLOW_CLS_DESTROY;
de4784ca 439 cls_flower.cookie = (unsigned long) f;
5b33f488 440
40119211 441 tc_setup_cb_destroy(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, false,
918190f5 442 &f->flags, &f->in_hw_count, rtnl_held);
c24e43d8 443
5b33f488
AV		 444}
445
e8eb36cd 446static int fl_hw_replace_filter(struct tcf_proto *tp,
c24e43d8 447 struct cls_fl_filter *f, bool rtnl_held,
41002038 448 struct netlink_ext_ack *extack)
5b33f488 449{
208c0f4b 450 struct tcf_block *block = tp->chain->block;
f9e30088 451 struct flow_cls_offload cls_flower = {};
717503b9 452 bool skip_sw = tc_skip_sw(f->flags);
c24e43d8
VB		 453 int err = 0;
454
e3ab786b 455 cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts));
918190f5
VB		 456 if (!cls_flower.rule)
457 return -ENOMEM;
8f256622 458
d6787147 459 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
f9e30088 460 cls_flower.command = FLOW_CLS_REPLACE;
de4784ca 461 cls_flower.cookie = (unsigned long) f;
8f256622
PNA		 462 cls_flower.rule->match.dissector = &f->mask->dissector;
463 cls_flower.rule->match.mask = &f->mask->key;
464 cls_flower.rule->match.key = &f->mkey;
384c181e 465 cls_flower.classid = f->res.classid;
5b33f488 466
c2ccf84e
IS		 467 err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts,
468 cls_flower.common.extack);
3a7b6861
PNA		 469 if (err) {
470 kfree(cls_flower.rule);
11c95317
IS		 471
472 return skip_sw ? err : 0;
3a7b6861
PNA		 473 }
474
40119211 475 err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower,
918190f5 476 skip_sw, &f->flags, &f->in_hw_count, rtnl_held);
9c1c0e12 477 tc_cleanup_offload_action(&cls_flower.rule->action);
8f256622
PNA		 478 kfree(cls_flower.rule);
479
40119211 480 if (err) {
918190f5
VB		 481 fl_hw_destroy_filter(tp, f, rtnl_held, NULL);
482 return err;
717503b9
JP		 483 }
484
918190f5
VB		 485 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
486 return -EINVAL;
c24e43d8 487
918190f5 488 return 0;
5b33f488
AV		 489}
490
c24e43d8
VB		 491static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f,
492 bool rtnl_held)
10cbc684 493{
208c0f4b 494 struct tcf_block *block = tp->chain->block;
f9e30088 495 struct flow_cls_offload cls_flower = {};
10cbc684 496
d6787147 497 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
f9e30088 498 cls_flower.command = FLOW_CLS_STATS;
de4784ca 499 cls_flower.cookie = (unsigned long) f;
384c181e 500 cls_flower.classid = f->res.classid;
10cbc684 501
918190f5
VB		 502 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false,
503 rtnl_held);
3b1903ef 504
bcd64368
BZ		 505 tcf_exts_hw_stats_update(&f->exts, cls_flower.stats.bytes,
506 cls_flower.stats.pkts,
507 cls_flower.stats.drops,
508 cls_flower.stats.lastused,
509 cls_flower.stats.used_hw_stats,
510 cls_flower.stats.used_hw_stats_valid);
10cbc684
AV		 511}
512
06177558
VB		 513static void __fl_put(struct cls_fl_filter *f)
514{
515 if (!refcount_dec_and_test(&f->refcnt))
516 return;
517
518 if (tcf_exts_get_net(&f->exts))
519 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
520 else
521 __fl_destroy_filter(f);
522}
523
524static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle)
525{
526 struct cls_fl_filter *f;
527
528 rcu_read_lock();
529 f = idr_find(&head->handle_idr, handle);
530 if (f && !refcount_inc_not_zero(&f->refcnt))
531 f = NULL;
532 rcu_read_unlock();
533
534 return f;
535}
536
b2552b8c 537static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
c24e43d8
VB		 538 bool *last, bool rtnl_held,
539 struct netlink_ext_ack *extack)
13fa876e 540{
e474619a 541 struct cls_fl_head *head = fl_head_dereference(tp);
c15ab236 542
b2552b8c
VB		 543 *last = false;
544
3d81e711
VB		 545 spin_lock(&tp->lock);
546 if (f->deleted) {
547 spin_unlock(&tp->lock);
b2552b8c 548 return -ENOENT;
3d81e711 549 }
b2552b8c
VB		 550
551 f->deleted = true;
552 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
553 f->mask->filter_ht_params);
9c160941 554 idr_remove(&head->handle_idr, f->handle);
13fa876e 555 list_del_rcu(&f->list);
3d81e711
VB		 556 spin_unlock(&tp->lock);
557
9994677c 558 *last = fl_mask_put(head, f->mask);
79685219 559 if (!tc_skip_hw(f->flags))
c24e43d8 560 fl_hw_destroy_filter(tp, f, rtnl_held, extack);
13fa876e 561 tcf_unbind_filter(tp, &f->res);
06177558 562 __fl_put(f);
05cd271f 563
b2552b8c 564 return 0;
13fa876e
RD		 565}
566
d9363774
DB		 567static void fl_destroy_sleepable(struct work_struct *work)
568{
aaa908ff
CW		 569 struct cls_fl_head *head = container_of(to_rcu_work(work),
570 struct cls_fl_head,
571 rwork);
de9dc650
PB		 572
573 rhashtable_destroy(&head->ht);
d9363774
DB		 574 kfree(head);
575 module_put(THIS_MODULE);
576}
577
12db03b6
VB		 578static void fl_destroy(struct tcf_proto *tp, bool rtnl_held,
579 struct netlink_ext_ack *extack)
77b9900e 580{
e474619a 581 struct cls_fl_head *head = fl_head_dereference(tp);
05cd271f 582 struct fl_flow_mask *mask, *next_mask;
77b9900e 583 struct cls_fl_filter *f, *next;
b2552b8c 584 bool last;
77b9900e 585
05cd271f
PB		 586 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
587 list_for_each_entry_safe(f, next, &mask->filters, list) {
c24e43d8 588 __fl_delete(tp, f, &last, rtnl_held, extack);
b2552b8c 589 if (last)
05cd271f
PB		 590 break;
591 }
592 }
c15ab236 593 idr_destroy(&head->handle_idr);
d9363774
DB		 594
595 __module_get(THIS_MODULE);
aaa908ff 596 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
77b9900e
JP		 597}
598
06177558
VB		 599static void fl_put(struct tcf_proto *tp, void *arg)
600{
601 struct cls_fl_filter *f = arg;
602
603 __fl_put(f);
604}
605
8113c095 606static void *fl_get(struct tcf_proto *tp, u32 handle)
77b9900e 607{
e474619a 608 struct cls_fl_head *head = fl_head_dereference(tp);
77b9900e 609
06177558 610 return __fl_get(head, handle);
77b9900e
JP		 611}
612
613static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
614 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
615 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
616 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
617 .len = IFNAMSIZ },
618 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
619 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
620 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
621 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
622 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
623 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
624 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
625 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
626 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
627 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
628 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
629 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
630 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
631 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
632 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
633 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
b175c3a4
JHS		 634 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
635 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
9399ae9a
HHZ		 636 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
637 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
638 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
bc3103f1
AV		 639 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
640 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
641 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
642 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
643 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
644 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
645 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
646 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
647 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
aa72d708
OG		 648 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
649 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
650 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
651 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
5976c5f4
SH		 652 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
653 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
654 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
655 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
f4d997fd
HHZ		 656 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
657 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
658 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
659 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
faa3ffce
OG		 660 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
661 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
7b684884
SH		 662 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
663 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
664 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
665 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
666 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
667 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
668 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
669 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
99d31326
SH		 670 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
671 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
672 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
673 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
674 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
675 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
676 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
677 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
678 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
679 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
a577d8f7
BL		 680 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
681 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
682 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
683 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
61aec25a 684 [TCA_FLOWER_KEY_MPLS_OPTS] = { .type = NLA_NESTED },
fdfc7dd6
JP		 685 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
686 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
4d80cc0a
OG		 687 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
688 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
689 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
690 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
d64efd09
JL		 691 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
692 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
693 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
0e2c17b6
OG		 694 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
695 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
696 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
697 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
0a6e7778
PJV		 698 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
699 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
1bcc51ac 700 [TCA_FLOWER_KEY_CT_STATE] =
701 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
702 [TCA_FLOWER_KEY_CT_STATE_MASK] =
703 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
e0ace68a
PB		 704 [TCA_FLOWER_KEY_CT_ZONE] = { .type = NLA_U16 },
705 [TCA_FLOWER_KEY_CT_ZONE_MASK] = { .type = NLA_U16 },
706 [TCA_FLOWER_KEY_CT_MARK] = { .type = NLA_U32 },
707 [TCA_FLOWER_KEY_CT_MARK_MASK] = { .type = NLA_U32 },
708 [TCA_FLOWER_KEY_CT_LABELS] = { .type = NLA_BINARY,
709 .len = 128 / BITS_PER_BYTE },
710 [TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
711 .len = 128 / BITS_PER_BYTE },
e2debf08 712 [TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
5923b8f7
AL		 713 [TCA_FLOWER_KEY_HASH] = { .type = NLA_U32 },
714 [TCA_FLOWER_KEY_HASH_MASK] = { .type = NLA_U32 },
b4000312 715 [TCA_FLOWER_KEY_NUM_OF_VLANS] = { .type = NLA_U8 },
5008750e
WD		 716 [TCA_FLOWER_KEY_PPPOE_SID] = { .type = NLA_U16 },
717 [TCA_FLOWER_KEY_PPP_PROTO] = { .type = NLA_U16 },
8b189ea0 718 [TCA_FLOWER_KEY_L2TPV3_SID] = { .type = NLA_U32 },
5923b8f7 719
0a6e7778
PJV		 720};
721
722static const struct nla_policy
723enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
d8f9dfae
XL		 724 [TCA_FLOWER_KEY_ENC_OPTS_UNSPEC] = {
725 .strict_start_type = TCA_FLOWER_KEY_ENC_OPTS_VXLAN },
0a6e7778 726 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
d8f9dfae 727 [TCA_FLOWER_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED },
79b1011c 728 [TCA_FLOWER_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED },
e3acda7a 729 [TCA_FLOWER_KEY_ENC_OPTS_GTP] = { .type = NLA_NESTED },
0a6e7778
PJV		 730};
731
732static const struct nla_policy
733geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
734 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
735 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
736 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
737 .len = 128 },
77b9900e
JP		 738};
739
d8f9dfae
XL		 740static const struct nla_policy
741vxlan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1] = {
742 [TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 },
743};
744
79b1011c
XL		 745static const struct nla_policy
746erspan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1] = {
747 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 },
748 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 },
749 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 },
750 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 },
751};
752
e3acda7a
WD		 753static const struct nla_policy
754gtp_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GTP_MAX + 1] = {
755 [TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE] = { .type = NLA_U8 },
756 [TCA_FLOWER_KEY_ENC_OPT_GTP_QFI] = { .type = NLA_U8 },
757};
758
61aec25a
GN		 759static const struct nla_policy
760mpls_stack_entry_policy[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1] = {
761 [TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH] = { .type = NLA_U8 },
762 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL] = { .type = NLA_U8 },
763 [TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS] = { .type = NLA_U8 },
764 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TC] = { .type = NLA_U8 },
765 [TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL] = { .type = NLA_U32 },
766};
767
77b9900e
JP		 768static void fl_set_key_val(struct nlattr **tb,
769 void *val, int val_type,
770 void *mask, int mask_type, int len)
771{
772 if (!tb[val_type])
773 return;
e0ace68a 774 nla_memcpy(val, tb[val_type], len);
77b9900e
JP		 775 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
776 memset(mask, 0xff, len);
777 else
e0ace68a 778 nla_memcpy(mask, tb[mask_type], len);
77b9900e
JP		 779}
780
5c72299f 781static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
bd7d4c12
GN		 782 struct fl_flow_key *mask,
783 struct netlink_ext_ack *extack)
5c72299f 784{
8ffb055b
YK		 785 fl_set_key_val(tb, &key->tp_range.tp_min.dst,
786 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_range.tp_min.dst,
787 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.dst));
788 fl_set_key_val(tb, &key->tp_range.tp_max.dst,
789 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_range.tp_max.dst,
790 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.dst));
791 fl_set_key_val(tb, &key->tp_range.tp_min.src,
792 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_range.tp_min.src,
793 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.src));
794 fl_set_key_val(tb, &key->tp_range.tp_max.src,
795 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_range.tp_max.src,
796 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.src));
797
bd7d4c12 798 if (mask->tp_range.tp_min.dst && mask->tp_range.tp_max.dst &&
6215afcb
VO		 799 ntohs(key->tp_range.tp_max.dst) <=
800 ntohs(key->tp_range.tp_min.dst)) {
bd7d4c12
GN		 801 NL_SET_ERR_MSG_ATTR(extack,
802 tb[TCA_FLOWER_KEY_PORT_DST_MIN],
803 "Invalid destination port range (min must be strictly smaller than max)");
5c72299f 804 return -EINVAL;
bd7d4c12
GN		 805 }
806 if (mask->tp_range.tp_min.src && mask->tp_range.tp_max.src &&
6215afcb
VO		 807 ntohs(key->tp_range.tp_max.src) <=
808 ntohs(key->tp_range.tp_min.src)) {
bd7d4c12
GN		 809 NL_SET_ERR_MSG_ATTR(extack,
810 tb[TCA_FLOWER_KEY_PORT_SRC_MIN],
811 "Invalid source port range (min must be strictly smaller than max)");
812 return -EINVAL;
813 }
5c72299f
AN		 814
815 return 0;
816}
817
61aec25a
GN		 818static int fl_set_key_mpls_lse(const struct nlattr *nla_lse,
819 struct flow_dissector_key_mpls *key_val,
820 struct flow_dissector_key_mpls *key_mask,
821 struct netlink_ext_ack *extack)
822{
823 struct nlattr *tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1];
824 struct flow_dissector_mpls_lse *lse_mask;
825 struct flow_dissector_mpls_lse *lse_val;
826 u8 lse_index;
827 u8 depth;
828 int err;
829
830 err = nla_parse_nested(tb, TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX, nla_lse,
831 mpls_stack_entry_policy, extack);
832 if (err < 0)
833 return err;
834
835 if (!tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]) {
836 NL_SET_ERR_MSG(extack, "Missing MPLS option \"depth\"");
837 return -EINVAL;
838 }
839
840 depth = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]);
841
842 /* LSE depth starts at 1, for consistency with terminology used by
843 * RFC 3031 (section 3.9), where depth 0 refers to unlabeled packets.
844 */
845 if (depth < 1 || depth > FLOW_DIS_MPLS_MAX) {
846 NL_SET_ERR_MSG_ATTR(extack,
847 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH],
848 "Invalid MPLS depth");
849 return -EINVAL;
850 }
851 lse_index = depth - 1;
852
853 dissector_set_mpls_lse(key_val, lse_index);
854 dissector_set_mpls_lse(key_mask, lse_index);
855
856 lse_val = &key_val->ls[lse_index];
857 lse_mask = &key_mask->ls[lse_index];
858
859 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]) {
860 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]);
861 lse_mask->mpls_ttl = MPLS_TTL_MASK;
862 }
863 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]) {
864 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]);
865
866 if (bos & ~MPLS_BOS_MASK) {
867 NL_SET_ERR_MSG_ATTR(extack,
868 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS],
869 "Bottom Of Stack (BOS) must be 0 or 1");
870 return -EINVAL;
871 }
872 lse_val->mpls_bos = bos;
873 lse_mask->mpls_bos = MPLS_BOS_MASK;
874 }
875 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]) {
876 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]);
877
878 if (tc & ~MPLS_TC_MASK) {
879 NL_SET_ERR_MSG_ATTR(extack,
880 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC],
881 "Traffic Class (TC) must be between 0 and 7");
882 return -EINVAL;
883 }
884 lse_val->mpls_tc = tc;
885 lse_mask->mpls_tc = MPLS_TC_MASK;
886 }
887 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]) {
888 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]);
889
890 if (label & ~MPLS_LABEL_MASK) {
891 NL_SET_ERR_MSG_ATTR(extack,
892 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL],
893 "Label must be between 0 and 1048575");
894 return -EINVAL;
895 }
896 lse_val->mpls_label = label;
897 lse_mask->mpls_label = MPLS_LABEL_MASK;
898 }
899
900 return 0;
901}
902
903static int fl_set_key_mpls_opts(const struct nlattr *nla_mpls_opts,
904 struct flow_dissector_key_mpls *key_val,
905 struct flow_dissector_key_mpls *key_mask,
906 struct netlink_ext_ack *extack)
907{
908 struct nlattr *nla_lse;
909 int rem;
910 int err;
911
912 if (!(nla_mpls_opts->nla_type & NLA_F_NESTED)) {
913 NL_SET_ERR_MSG_ATTR(extack, nla_mpls_opts,
914 "NLA_F_NESTED is missing");
915 return -EINVAL;
916 }
917
918 nla_for_each_nested(nla_lse, nla_mpls_opts, rem) {
919 if (nla_type(nla_lse) != TCA_FLOWER_KEY_MPLS_OPTS_LSE) {
920 NL_SET_ERR_MSG_ATTR(extack, nla_lse,
921 "Invalid MPLS option type");
922 return -EINVAL;
923 }
924
925 err = fl_set_key_mpls_lse(nla_lse, key_val, key_mask, extack);
926 if (err < 0)
927 return err;
928 }
929 if (rem) {
930 NL_SET_ERR_MSG(extack,
931 "Bytes leftover after parsing MPLS options");
932 return -EINVAL;
933 }
934
935 return 0;
936}
937
1a7fca63
BL		 938static int fl_set_key_mpls(struct nlattr **tb,
939 struct flow_dissector_key_mpls *key_val,
442f730e
GN		 940 struct flow_dissector_key_mpls *key_mask,
941 struct netlink_ext_ack *extack)
a577d8f7 942{
58cff782
GN		 943 struct flow_dissector_mpls_lse *lse_mask;
944 struct flow_dissector_mpls_lse *lse_val;
945
61aec25a
GN		 946 if (tb[TCA_FLOWER_KEY_MPLS_OPTS]) {
947 if (tb[TCA_FLOWER_KEY_MPLS_TTL] ||
948 tb[TCA_FLOWER_KEY_MPLS_BOS] ||
949 tb[TCA_FLOWER_KEY_MPLS_TC] ||
950 tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
951 NL_SET_ERR_MSG_ATTR(extack,
952 tb[TCA_FLOWER_KEY_MPLS_OPTS],
953 "MPLS label, Traffic Class, Bottom Of Stack and Time To Live must be encapsulated in the MPLS options attribute");
954 return -EBADMSG;
955 }
956
957 return fl_set_key_mpls_opts(tb[TCA_FLOWER_KEY_MPLS_OPTS],
958 key_val, key_mask, extack);
959 }
960
58cff782
GN		 961 lse_val = &key_val->ls[0];
962 lse_mask = &key_mask->ls[0];
963
a577d8f7 964 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
58cff782
GN		 965 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
966 lse_mask->mpls_ttl = MPLS_TTL_MASK;
967 dissector_set_mpls_lse(key_val, 0);
968 dissector_set_mpls_lse(key_mask, 0);
a577d8f7
BL		 969 }
970 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
1a7fca63
BL		 971 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
972
442f730e
GN		 973 if (bos & ~MPLS_BOS_MASK) {
974 NL_SET_ERR_MSG_ATTR(extack,
975 tb[TCA_FLOWER_KEY_MPLS_BOS],
976 "Bottom Of Stack (BOS) must be 0 or 1");
1a7fca63 977 return -EINVAL;
442f730e 978 }
58cff782
GN		 979 lse_val->mpls_bos = bos;
980 lse_mask->mpls_bos = MPLS_BOS_MASK;
981 dissector_set_mpls_lse(key_val, 0);
982 dissector_set_mpls_lse(key_mask, 0);
a577d8f7
BL		 983 }
984 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
1a7fca63
BL		 985 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
986
442f730e
GN		 987 if (tc & ~MPLS_TC_MASK) {
988 NL_SET_ERR_MSG_ATTR(extack,
989 tb[TCA_FLOWER_KEY_MPLS_TC],
990 "Traffic Class (TC) must be between 0 and 7");
1a7fca63 991 return -EINVAL;
442f730e 992 }
58cff782
GN		 993 lse_val->mpls_tc = tc;
994 lse_mask->mpls_tc = MPLS_TC_MASK;
995 dissector_set_mpls_lse(key_val, 0);
996 dissector_set_mpls_lse(key_mask, 0);
a577d8f7
BL		 997 }
998 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
1a7fca63
BL		 999 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
1000
442f730e
GN		 1001 if (label & ~MPLS_LABEL_MASK) {
1002 NL_SET_ERR_MSG_ATTR(extack,
1003 tb[TCA_FLOWER_KEY_MPLS_LABEL],
1004 "Label must be between 0 and 1048575");
1a7fca63 1005 return -EINVAL;
442f730e 1006 }
58cff782
GN		 1007 lse_val->mpls_label = label;
1008 lse_mask->mpls_label = MPLS_LABEL_MASK;
1009 dissector_set_mpls_lse(key_val, 0);
1010 dissector_set_mpls_lse(key_mask, 0);
a577d8f7 1011 }
1a7fca63 1012 return 0;
a577d8f7
BL		 1013}
1014
9399ae9a 1015static void fl_set_key_vlan(struct nlattr **tb,
aaab0834 1016 __be16 ethertype,
d64efd09 1017 int vlan_id_key, int vlan_prio_key,
2105f700 1018 int vlan_next_eth_type_key,
9399ae9a
HHZ		 1019 struct flow_dissector_key_vlan *key_val,
1020 struct flow_dissector_key_vlan *key_mask)
1021{
1022#define VLAN_PRIORITY_MASK 0x7
1023
d64efd09 1024 if (tb[vlan_id_key]) {
9399ae9a 1025 key_val->vlan_id =
d64efd09 1026 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
9399ae9a
HHZ		 1027 key_mask->vlan_id = VLAN_VID_MASK;
1028 }
d64efd09 1029 if (tb[vlan_prio_key]) {
9399ae9a 1030 key_val->vlan_priority =
d64efd09 1031 nla_get_u8(tb[vlan_prio_key]) &
9399ae9a
HHZ		 1032 VLAN_PRIORITY_MASK;
1033 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
1034 }
99fdb22b
BS		 1035 if (ethertype) {
1036 key_val->vlan_tpid = ethertype;
1037 key_mask->vlan_tpid = cpu_to_be16(~0);
1038 }
2105f700
VB		 1039 if (tb[vlan_next_eth_type_key]) {
1040 key_val->vlan_eth_type =
1041 nla_get_be16(tb[vlan_next_eth_type_key]);
1042 key_mask->vlan_eth_type = cpu_to_be16(~0);
1043 }
9399ae9a
HHZ		 1044}
1045
5008750e
WD		 1046static void fl_set_key_pppoe(struct nlattr **tb,
1047 struct flow_dissector_key_pppoe *key_val,
1048 struct flow_dissector_key_pppoe *key_mask,
1049 struct fl_flow_key *key,
1050 struct fl_flow_key *mask)
1051{
1052 /* key_val::type must be set to ETH_P_PPP_SES
1053 * because ETH_P_PPP_SES was stored in basic.n_proto
1054 * which might get overwritten by ppp_proto
1055 * or might be set to 0, the role of key_val::type
1056 * is simmilar to vlan_key::tpid
1057 */
1058 key_val->type = htons(ETH_P_PPP_SES);
1059 key_mask->type = cpu_to_be16(~0);
1060
1061 if (tb[TCA_FLOWER_KEY_PPPOE_SID]) {
1062 key_val->session_id =
1063 nla_get_be16(tb[TCA_FLOWER_KEY_PPPOE_SID]);
1064 key_mask->session_id = cpu_to_be16(~0);
1065 }
1066 if (tb[TCA_FLOWER_KEY_PPP_PROTO]) {
1067 key_val->ppp_proto =
1068 nla_get_be16(tb[TCA_FLOWER_KEY_PPP_PROTO]);
1069 key_mask->ppp_proto = cpu_to_be16(~0);
1070
1071 if (key_val->ppp_proto == htons(PPP_IP)) {
1072 key->basic.n_proto = htons(ETH_P_IP);
1073 mask->basic.n_proto = cpu_to_be16(~0);
1074 } else if (key_val->ppp_proto == htons(PPP_IPV6)) {
1075 key->basic.n_proto = htons(ETH_P_IPV6);
1076 mask->basic.n_proto = cpu_to_be16(~0);
1077 } else if (key_val->ppp_proto == htons(PPP_MPLS_UC)) {
1078 key->basic.n_proto = htons(ETH_P_MPLS_UC);
1079 mask->basic.n_proto = cpu_to_be16(~0);
1080 } else if (key_val->ppp_proto == htons(PPP_MPLS_MC)) {
1081 key->basic.n_proto = htons(ETH_P_MPLS_MC);
1082 mask->basic.n_proto = cpu_to_be16(~0);
1083 }
1084 } else {
1085 key->basic.n_proto = 0;
1086 mask->basic.n_proto = cpu_to_be16(0);
1087 }
1088}
1089
faa3ffce
OG		 1090static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
1091 u32 *dissector_key, u32 *dissector_mask,
1092 u32 flower_flag_bit, u32 dissector_flag_bit)
1093{
1094 if (flower_mask & flower_flag_bit) {
1095 *dissector_mask |= dissector_flag_bit;
1096 if (flower_key & flower_flag_bit)
1097 *dissector_key |= dissector_flag_bit;
1098 }
1099}
1100
e304e21a
GN		 1101static int fl_set_key_flags(struct nlattr **tb, u32 *flags_key,
1102 u32 *flags_mask, struct netlink_ext_ack *extack)
faa3ffce
OG		 1103{
1104 u32 key, mask;
1105
d9724772 1106 /* mask is mandatory for flags */
e304e21a
GN		 1107 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) {
1108 NL_SET_ERR_MSG(extack, "Missing flags mask");
d9724772 1109 return -EINVAL;
e304e21a 1110 }
faa3ffce 1111
abee13f5
VO		 1112 key = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS]));
1113 mask = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
faa3ffce
OG		 1114
1115 *flags_key = 0;
1116 *flags_mask = 0;
1117
1118 fl_set_key_flag(key, mask, flags_key, flags_mask,
1119 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 1120 fl_set_key_flag(key, mask, flags_key, flags_mask,
1121 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1122 FLOW_DIS_FIRST_FRAG);
d9724772
OG		 1123
1124 return 0;
faa3ffce
OG		 1125}
1126
0e2c17b6 1127static void fl_set_key_ip(struct nlattr **tb, bool encap,
4d80cc0a
OG		 1128 struct flow_dissector_key_ip *key,
1129 struct flow_dissector_key_ip *mask)
1130{
0e2c17b6
OG		 1131 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1132 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1133 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1134 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
4d80cc0a 1135
0e2c17b6
OG		 1136 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
1137 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
4d80cc0a
OG		 1138}
1139
0a6e7778
PJV		 1140static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
1141 int depth, int option_len,
1142 struct netlink_ext_ack *extack)
1143{
1144 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
1145 struct nlattr *class = NULL, *type = NULL, *data = NULL;
1146 struct geneve_opt *opt;
1147 int err, data_len = 0;
1148
1149 if (option_len > sizeof(struct geneve_opt))
1150 data_len = option_len - sizeof(struct geneve_opt);
1151
1152 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
1153 memset(opt, 0xff, option_len);
1154 opt->length = data_len / 4;
1155 opt->r1 = 0;
1156 opt->r2 = 0;
1157 opt->r3 = 0;
1158
1159 /* If no mask has been prodived we assume an exact match. */
1160 if (!depth)
1161 return sizeof(struct geneve_opt) + data_len;
1162
1163 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
1164 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
1165 return -EINVAL;
1166 }
1167
8cb08174
JB		 1168 err = nla_parse_nested_deprecated(tb,
1169 TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
1170 nla, geneve_opt_policy, extack);
0a6e7778
PJV		 1171 if (err < 0)
1172 return err;
1173
1174 /* We are not allowed to omit any of CLASS, TYPE or DATA
1175 * fields from the key.
1176 */
1177 if (!option_len &&
1178 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
1179 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
1180 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
1181 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
1182 return -EINVAL;
1183 }
1184
1185 /* Omitting any of CLASS, TYPE or DATA fields is allowed
1186 * for the mask.
1187 */
1188 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
1189 int new_len = key->enc_opts.len;
1190
1191 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
1192 data_len = nla_len(data);
1193 if (data_len < 4) {
1194 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
1195 return -ERANGE;
1196 }
1197 if (data_len % 4) {
1198 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
1199 return -ERANGE;
1200 }
1201
1202 new_len += sizeof(struct geneve_opt) + data_len;
1203 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
1204 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
1205 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
1206 return -ERANGE;
1207 }
1208 opt->length = data_len / 4;
1209 memcpy(opt->opt_data, nla_data(data), data_len);
1210 }
1211
1212 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
1213 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
1214 opt->opt_class = nla_get_be16(class);
1215 }
1216
1217 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
1218 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
1219 opt->type = nla_get_u8(type);
1220 }
1221
1222 return sizeof(struct geneve_opt) + data_len;
1223}
1224
d8f9dfae
XL		 1225static int fl_set_vxlan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1226 int depth, int option_len,
1227 struct netlink_ext_ack *extack)
1228{
1229 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1];
1230 struct vxlan_metadata *md;
1231 int err;
1232
1233 md = (struct vxlan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1234 memset(md, 0xff, sizeof(*md));
1235
1236 if (!depth)
1237 return sizeof(*md);
1238
1239 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_VXLAN) {
1240 NL_SET_ERR_MSG(extack, "Non-vxlan option type for mask");
1241 return -EINVAL;
1242 }
1243
1244 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX, nla,
1245 vxlan_opt_policy, extack);
1246 if (err < 0)
1247 return err;
1248
1249 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
1250 NL_SET_ERR_MSG(extack, "Missing tunnel key vxlan option gbp");
1251 return -EINVAL;
1252 }
1253
13e6ce98 1254 if (tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
d8f9dfae 1255 md->gbp = nla_get_u32(tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]);
13e6ce98
XL		 1256 md->gbp &= VXLAN_GBP_MASK;
1257 }
d8f9dfae
XL		 1258
1259 return sizeof(*md);
1260}
1261
79b1011c
XL		 1262static int fl_set_erspan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1263 int depth, int option_len,
1264 struct netlink_ext_ack *extack)
1265{
1266 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1];
1267 struct erspan_metadata *md;
1268 int err;
1269
1270 md = (struct erspan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1271 memset(md, 0xff, sizeof(*md));
1272 md->version = 1;
1273
1274 if (!depth)
1275 return sizeof(*md);
1276
1277 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_ERSPAN) {
1278 NL_SET_ERR_MSG(extack, "Non-erspan option type for mask");
1279 return -EINVAL;
1280 }
1281
1282 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX, nla,
1283 erspan_opt_policy, extack);
1284 if (err < 0)
1285 return err;
1286
1287 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) {
1288 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver");
1289 return -EINVAL;
1290 }
1291
1292 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER])
1293 md->version = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]);
1294
1295 if (md->version == 1) {
1296 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1297 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index");
1298 return -EINVAL;
1299 }
1300 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1301 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX];
8e1b3ac4 1302 memset(&md->u, 0x00, sizeof(md->u));
79b1011c
XL		 1303 md->u.index = nla_get_be32(nla);
1304 }
1305 } else if (md->version == 2) {
1306 if (!option_len && (!tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] ||
1307 !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID])) {
1308 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid");
1309 return -EINVAL;
1310 }
1311 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]) {
1312 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR];
1313 md->u.md2.dir = nla_get_u8(nla);
1314 }
1315 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]) {
1316 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID];
1317 set_hwid(&md->u.md2, nla_get_u8(nla));
1318 }
1319 } else {
1320 NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect");
1321 return -EINVAL;
1322 }
1323
1324 return sizeof(*md);
1325}
1326
e3acda7a
WD		 1327static int fl_set_gtp_opt(const struct nlattr *nla, struct fl_flow_key *key,
1328 int depth, int option_len,
1329 struct netlink_ext_ack *extack)
1330{
1331 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GTP_MAX + 1];
1332 struct gtp_pdu_session_info *sinfo;
1333 u8 len = key->enc_opts.len;
1334 int err;
1335
1336 sinfo = (struct gtp_pdu_session_info *)&key->enc_opts.data[len];
1337 memset(sinfo, 0xff, option_len);
1338
1339 if (!depth)
1340 return sizeof(*sinfo);
1341
1342 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GTP) {
1343 NL_SET_ERR_MSG_MOD(extack, "Non-gtp option type for mask");
1344 return -EINVAL;
1345 }
1346
1347 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_GTP_MAX, nla,
1348 gtp_opt_policy, extack);
1349 if (err < 0)
1350 return err;
1351
1352 if (!option_len &&
1353 (!tb[TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE] ||
1354 !tb[TCA_FLOWER_KEY_ENC_OPT_GTP_QFI])) {
1355 NL_SET_ERR_MSG_MOD(extack,
1356 "Missing tunnel key gtp option pdu type or qfi");
1357 return -EINVAL;
1358 }
1359
1360 if (tb[TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE])
1361 sinfo->pdu_type =
1362 nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE]);
1363
1364 if (tb[TCA_FLOWER_KEY_ENC_OPT_GTP_QFI])
1365 sinfo->qfi = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_GTP_QFI]);
1366
1367 return sizeof(*sinfo);
1368}
1369
0a6e7778
PJV		 1370static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
1371 struct fl_flow_key *mask,
1372 struct netlink_ext_ack *extack)
1373{
1374 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
63c82997
JK		 1375 int err, option_len, key_depth, msk_depth = 0;
1376
8cb08174
JB		 1377 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS],
1378 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1379 enc_opts_policy, extack);
63c82997
JK		 1380 if (err)
1381 return err;
0a6e7778
PJV		 1382
1383 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
1384
1385 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
8cb08174
JB		 1386 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
1387 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1388 enc_opts_policy, extack);
63c82997
JK		 1389 if (err)
1390 return err;
1391
0a6e7778
PJV		 1392 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1393 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
c96adff9
CW		 1394 if (!nla_ok(nla_opt_msk, msk_depth)) {
1395 NL_SET_ERR_MSG(extack, "Invalid nested attribute for masks");
1396 return -EINVAL;
1397 }
0a6e7778
PJV		 1398 }
1399
1400 nla_for_each_attr(nla_opt_key, nla_enc_key,
1401 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
1402 switch (nla_type(nla_opt_key)) {
1403 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
d8f9dfae
XL		 1404 if (key->enc_opts.dst_opt_type &&
1405 key->enc_opts.dst_opt_type != TUNNEL_GENEVE_OPT) {
1406 NL_SET_ERR_MSG(extack, "Duplicate type for geneve options");
1407 return -EINVAL;
1408 }
0a6e7778
PJV		 1409 option_len = 0;
1410 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1411 option_len = fl_set_geneve_opt(nla_opt_key, key,
1412 key_depth, option_len,
1413 extack);
1414 if (option_len < 0)
1415 return option_len;
1416
1417 key->enc_opts.len += option_len;
1418 /* At the same time we need to parse through the mask
1419 * in order to verify exact and mask attribute lengths.
1420 */
1421 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1422 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
1423 msk_depth, option_len,
1424 extack);
1425 if (option_len < 0)
1426 return option_len;
1427
1428 mask->enc_opts.len += option_len;
1429 if (key->enc_opts.len != mask->enc_opts.len) {
1430 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1431 return -EINVAL;
1432 }
d8f9dfae
XL		 1433 break;
1434 case TCA_FLOWER_KEY_ENC_OPTS_VXLAN:
1435 if (key->enc_opts.dst_opt_type) {
1436 NL_SET_ERR_MSG(extack, "Duplicate type for vxlan options");
1437 return -EINVAL;
1438 }
1439 option_len = 0;
1440 key->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1441 option_len = fl_set_vxlan_opt(nla_opt_key, key,
1442 key_depth, option_len,
1443 extack);
1444 if (option_len < 0)
1445 return option_len;
1446
1447 key->enc_opts.len += option_len;
1448 /* At the same time we need to parse through the mask
1449 * in order to verify exact and mask attribute lengths.
1450 */
1451 mask->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1452 option_len = fl_set_vxlan_opt(nla_opt_msk, mask,
1453 msk_depth, option_len,
1454 extack);
1455 if (option_len < 0)
1456 return option_len;
1457
1458 mask->enc_opts.len += option_len;
1459 if (key->enc_opts.len != mask->enc_opts.len) {
1460 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1461 return -EINVAL;
1462 }
79b1011c
XL		 1463 break;
1464 case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN:
1465 if (key->enc_opts.dst_opt_type) {
1466 NL_SET_ERR_MSG(extack, "Duplicate type for erspan options");
1467 return -EINVAL;
1468 }
1469 option_len = 0;
1470 key->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1471 option_len = fl_set_erspan_opt(nla_opt_key, key,
1472 key_depth, option_len,
1473 extack);
1474 if (option_len < 0)
1475 return option_len;
1476
1477 key->enc_opts.len += option_len;
1478 /* At the same time we need to parse through the mask
1479 * in order to verify exact and mask attribute lengths.
1480 */
1481 mask->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1482 option_len = fl_set_erspan_opt(nla_opt_msk, mask,
1483 msk_depth, option_len,
1484 extack);
1485 if (option_len < 0)
1486 return option_len;
1487
1488 mask->enc_opts.len += option_len;
1489 if (key->enc_opts.len != mask->enc_opts.len) {
1490 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1491 return -EINVAL;
1492 }
0a6e7778 1493 break;
e3acda7a
WD		 1494 case TCA_FLOWER_KEY_ENC_OPTS_GTP:
1495 if (key->enc_opts.dst_opt_type) {
1496 NL_SET_ERR_MSG_MOD(extack,
1497 "Duplicate type for gtp options");
1498 return -EINVAL;
1499 }
1500 option_len = 0;
1501 key->enc_opts.dst_opt_type = TUNNEL_GTP_OPT;
1502 option_len = fl_set_gtp_opt(nla_opt_key, key,
1503 key_depth, option_len,
1504 extack);
1505 if (option_len < 0)
1506 return option_len;
1507
1508 key->enc_opts.len += option_len;
1509 /* At the same time we need to parse through the mask
1510 * in order to verify exact and mask attribute lengths.
1511 */
1512 mask->enc_opts.dst_opt_type = TUNNEL_GTP_OPT;
1513 option_len = fl_set_gtp_opt(nla_opt_msk, mask,
1514 msk_depth, option_len,
1515 extack);
1516 if (option_len < 0)
1517 return option_len;
1518
1519 mask->enc_opts.len += option_len;
1520 if (key->enc_opts.len != mask->enc_opts.len) {
1521 NL_SET_ERR_MSG_MOD(extack,
1522 "Key and mask miss aligned");
1523 return -EINVAL;
1524 }
1525 break;
0a6e7778
PJV		 1526 default:
1527 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
1528 return -EINVAL;
1529 }
c96adff9
CW		 1530
1531 if (!msk_depth)
1532 continue;
1533
1534 if (!nla_ok(nla_opt_msk, msk_depth)) {
1535 NL_SET_ERR_MSG(extack, "A mask attribute is invalid");
1536 return -EINVAL;
1537 }
1538 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
0a6e7778
PJV		 1539 }
1540
1541 return 0;
1542}
1543
1bcc51ac 1544static int fl_validate_ct_state(u16 state, struct nlattr *tb,
1545 struct netlink_ext_ack *extack)
1546{
1547 if (state && !(state & TCA_FLOWER_KEY_CT_FLAGS_TRACKED)) {
1548 NL_SET_ERR_MSG_ATTR(extack, tb,
1549 "no trk, so no other flag can be set");
1550 return -EINVAL;
1551 }
1552
1553 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1554 state & TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED) {
1555 NL_SET_ERR_MSG_ATTR(extack, tb,
1556 "new and est are mutually exclusive");
1557 return -EINVAL;
1558 }
1559
3aed8b63 1560 if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID &&
1561 state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
1562 TCA_FLOWER_KEY_CT_FLAGS_INVALID)) {
1563 NL_SET_ERR_MSG_ATTR(extack, tb,
1564 "when inv is set, only trk may be set");
1565 return -EINVAL;
1566 }
1567
1568 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1569 state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) {
1570 NL_SET_ERR_MSG_ATTR(extack, tb,
1571 "new and rpl are mutually exclusive");
1572 return -EINVAL;
1573 }
1574
1bcc51ac 1575 return 0;
1576}
1577
e0ace68a
PB		 1578static int fl_set_key_ct(struct nlattr **tb,
1579 struct flow_dissector_key_ct *key,
1580 struct flow_dissector_key_ct *mask,
1581 struct netlink_ext_ack *extack)
1582{
1583 if (tb[TCA_FLOWER_KEY_CT_STATE]) {
1bcc51ac 1584 int err;
1585
e0ace68a
PB		 1586 if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) {
1587 NL_SET_ERR_MSG(extack, "Conntrack isn't enabled");
1588 return -EOPNOTSUPP;
1589 }
1590 fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
1591 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
1592 sizeof(key->ct_state));
1bcc51ac 1593
afa536d8 1594 err = fl_validate_ct_state(key->ct_state & mask->ct_state,
1bcc51ac 1595 tb[TCA_FLOWER_KEY_CT_STATE_MASK],
1596 extack);
1597 if (err)
1598 return err;
1599
e0ace68a
PB		 1600 }
1601 if (tb[TCA_FLOWER_KEY_CT_ZONE]) {
1602 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) {
1603 NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled");
1604 return -EOPNOTSUPP;
1605 }
1606 fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
1607 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
1608 sizeof(key->ct_zone));
1609 }
1610 if (tb[TCA_FLOWER_KEY_CT_MARK]) {
1611 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) {
1612 NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled");
1613 return -EOPNOTSUPP;
1614 }
1615 fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
1616 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
1617 sizeof(key->ct_mark));
1618 }
1619 if (tb[TCA_FLOWER_KEY_CT_LABELS]) {
1620 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) {
1621 NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled");
1622 return -EOPNOTSUPP;
1623 }
1624 fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
1625 mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
1626 sizeof(key->ct_labels));
1627 }
1628
1629 return 0;
1630}
1631
285ba06b 1632static bool is_vlan_key(struct nlattr *tb, __be16 *ethertype,
99fdb22b
BS		 1633 struct fl_flow_key *key, struct fl_flow_key *mask,
1634 int vthresh)
285ba06b 1635{
99fdb22b
BS		 1636 const bool good_num_of_vlans = key->num_of_vlans.num_of_vlans > vthresh;
1637
1638 if (!tb) {
1639 *ethertype = 0;
1640 return good_num_of_vlans;
1641 }
285ba06b
BS		 1642
1643 *ethertype = nla_get_be16(tb);
99fdb22b 1644 if (good_num_of_vlans || eth_type_vlan(*ethertype))
285ba06b
BS		 1645 return true;
1646
1647 key->basic.n_proto = *ethertype;
1648 mask->basic.n_proto = cpu_to_be16(~0);
1649 return false;
1650}
1651
77b9900e 1652static int fl_set_key(struct net *net, struct nlattr **tb,
1057c55f
AA		 1653 struct fl_flow_key *key, struct fl_flow_key *mask,
1654 struct netlink_ext_ack *extack)
77b9900e 1655{
9399ae9a 1656 __be16 ethertype;
d9724772 1657 int ret = 0;
a5148626 1658
77b9900e 1659 if (tb[TCA_FLOWER_INDEV]) {
1057c55f 1660 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
77b9900e
JP		 1661 if (err < 0)
1662 return err;
8212ed77
JP		 1663 key->meta.ingress_ifindex = err;
1664 mask->meta.ingress_ifindex = 0xffffffff;
77b9900e
JP		 1665 }
1666
1667 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1668 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1669 sizeof(key->eth.dst));
1670 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1671 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1672 sizeof(key->eth.src));
b4000312
BS		 1673 fl_set_key_val(tb, &key->num_of_vlans,
1674 TCA_FLOWER_KEY_NUM_OF_VLANS,
1675 &mask->num_of_vlans,
1676 TCA_FLOWER_UNSPEC,
1677 sizeof(key->num_of_vlans));
66530bdf 1678
99fdb22b 1679 if (is_vlan_key(tb[TCA_FLOWER_KEY_ETH_TYPE], &ethertype, key, mask, 0)) {
6ee59e55
BS		 1680 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
1681 TCA_FLOWER_KEY_VLAN_PRIO,
1682 TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1683 &key->vlan, &mask->vlan);
1684
99fdb22b
BS		 1685 if (is_vlan_key(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE],
1686 &ethertype, key, mask, 1)) {
6ee59e55
BS		 1687 fl_set_key_vlan(tb, ethertype,
1688 TCA_FLOWER_KEY_CVLAN_ID,
1689 TCA_FLOWER_KEY_CVLAN_PRIO,
1690 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1691 &key->cvlan, &mask->cvlan);
1692 fl_set_key_val(tb, &key->basic.n_proto,
1693 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1694 &mask->basic.n_proto,
1695 TCA_FLOWER_UNSPEC,
1696 sizeof(key->basic.n_proto));
1697 }
9399ae9a 1698 }
66530bdf 1699
5008750e
WD		 1700 if (key->basic.n_proto == htons(ETH_P_PPP_SES))
1701 fl_set_key_pppoe(tb, &key->pppoe, &mask->pppoe, key, mask);
1702
77b9900e
JP		 1703 if (key->basic.n_proto == htons(ETH_P_IP) ||
1704 key->basic.n_proto == htons(ETH_P_IPV6)) {
1705 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1706 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1707 sizeof(key->basic.ip_proto));
0e2c17b6 1708 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
77b9900e 1709 }
66530bdf
JHS		 1710
1711 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
1712 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1713 mask->control.addr_type = ~0;
77b9900e
JP		 1714 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1715 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1716 sizeof(key->ipv4.src));
1717 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1718 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1719 sizeof(key->ipv4.dst));
66530bdf
JHS		 1720 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
1721 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1722 mask->control.addr_type = ~0;
77b9900e
JP		 1723 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1724 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1725 sizeof(key->ipv6.src));
1726 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1727 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1728 sizeof(key->ipv6.dst));
1729 }
66530bdf 1730
77b9900e
JP		 1731 if (key->basic.ip_proto == IPPROTO_TCP) {
1732 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 1733 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 1734 sizeof(key->tp.src));
1735 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 1736 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
77b9900e 1737 sizeof(key->tp.dst));
fdfc7dd6
JP		 1738 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1739 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1740 sizeof(key->tcp.flags));
77b9900e
JP		 1741 } else if (key->basic.ip_proto == IPPROTO_UDP) {
1742 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 1743 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 1744 sizeof(key->tp.src));
1745 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 1746 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
77b9900e 1747 sizeof(key->tp.dst));
5976c5f4
SH		 1748 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
1749 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1750 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1751 sizeof(key->tp.src));
1752 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1753 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1754 sizeof(key->tp.dst));
7b684884
SH		 1755 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
1756 key->basic.ip_proto == IPPROTO_ICMP) {
1757 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
1758 &mask->icmp.type,
1759 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1760 sizeof(key->icmp.type));
1761 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
1762 &mask->icmp.code,
1763 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1764 sizeof(key->icmp.code));
1765 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1766 key->basic.ip_proto == IPPROTO_ICMPV6) {
1767 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1768 &mask->icmp.type,
1769 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1770 sizeof(key->icmp.type));
040587af 1771 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
7b684884 1772 &mask->icmp.code,
040587af 1773 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
7b684884 1774 sizeof(key->icmp.code));
a577d8f7
BL		 1775 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1776 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
442f730e 1777 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack);
1a7fca63
BL		 1778 if (ret)
1779 return ret;
99d31326
SH		 1780 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1781 key->basic.n_proto == htons(ETH_P_RARP)) {
1782 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1783 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1784 sizeof(key->arp.sip));
1785 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1786 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1787 sizeof(key->arp.tip));
1788 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1789 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1790 sizeof(key->arp.op));
1791 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1792 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1793 sizeof(key->arp.sha));
1794 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1795 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1796 sizeof(key->arp.tha));
8b189ea0
WD		 1797 } else if (key->basic.ip_proto == IPPROTO_L2TP) {
1798 fl_set_key_val(tb, &key->l2tpv3.session_id,
1799 TCA_FLOWER_KEY_L2TPV3_SID,
1800 &mask->l2tpv3.session_id, TCA_FLOWER_UNSPEC,
1801 sizeof(key->l2tpv3.session_id));
77b9900e
JP		 1802 }
1803
5c72299f
AN		 1804 if (key->basic.ip_proto == IPPROTO_TCP ||
1805 key->basic.ip_proto == IPPROTO_UDP ||
1806 key->basic.ip_proto == IPPROTO_SCTP) {
bd7d4c12 1807 ret = fl_set_key_port_range(tb, key, mask, extack);
5c72299f
AN		 1808 if (ret)
1809 return ret;
1810 }
1811
bc3103f1
AV		 1812 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1813 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1814 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1815 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1816 fl_set_key_val(tb, &key->enc_ipv4.src,
1817 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1818 &mask->enc_ipv4.src,
1819 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1820 sizeof(key->enc_ipv4.src));
1821 fl_set_key_val(tb, &key->enc_ipv4.dst,
1822 TCA_FLOWER_KEY_ENC_IPV4_DST,
1823 &mask->enc_ipv4.dst,
1824 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1825 sizeof(key->enc_ipv4.dst));
1826 }
1827
1828 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1829 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1830 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1831 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1832 fl_set_key_val(tb, &key->enc_ipv6.src,
1833 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1834 &mask->enc_ipv6.src,
1835 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1836 sizeof(key->enc_ipv6.src));
1837 fl_set_key_val(tb, &key->enc_ipv6.dst,
1838 TCA_FLOWER_KEY_ENC_IPV6_DST,
1839 &mask->enc_ipv6.dst,
1840 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1841 sizeof(key->enc_ipv6.dst));
1842 }
1843
1844 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1845 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
bc3103f1
AV		 1846 sizeof(key->enc_key_id.keyid));
1847
f4d997fd
HHZ		 1848 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1849 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1850 sizeof(key->enc_tp.src));
1851
1852 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1853 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1854 sizeof(key->enc_tp.dst));
1855
0e2c17b6
OG		 1856 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1857
5923b8f7
AL		 1858 fl_set_key_val(tb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
1859 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
1860 sizeof(key->hash.hash));
1861
0a6e7778
PJV		 1862 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1863 ret = fl_set_enc_opt(tb, key, mask, extack);
1864 if (ret)
1865 return ret;
1866 }
1867
e0ace68a
PB		 1868 ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack);
1869 if (ret)
1870 return ret;
1871
d9724772 1872 if (tb[TCA_FLOWER_KEY_FLAGS])
e304e21a
GN		 1873 ret = fl_set_key_flags(tb, &key->control.flags,
1874 &mask->control.flags, extack);
faa3ffce 1875
d9724772 1876 return ret;
77b9900e
JP		 1877}
1878
05cd271f
PB		 1879static void fl_mask_copy(struct fl_flow_mask *dst,
1880 struct fl_flow_mask *src)
77b9900e 1881{
05cd271f
PB		 1882 const void *psrc = fl_key_get_start(&src->key, src);
1883 void *pdst = fl_key_get_start(&dst->key, src);
77b9900e 1884
05cd271f
PB		 1885 memcpy(pdst, psrc, fl_mask_range(src));
1886 dst->range = src->range;
77b9900e
JP		 1887}
1888
1889static const struct rhashtable_params fl_ht_params = {
1890 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1891 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1892 .automatic_shrinking = true,
1893};
1894
05cd271f 1895static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
77b9900e 1896{
05cd271f
PB		 1897 mask->filter_ht_params = fl_ht_params;
1898 mask->filter_ht_params.key_len = fl_mask_range(mask);
1899 mask->filter_ht_params.key_offset += mask->range.start;
77b9900e 1900
05cd271f 1901 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
77b9900e
JP		 1902}
1903
1904#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
c593642c 1905#define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member)
77b9900e 1906
339ba878
HHZ		 1907#define FL_KEY_IS_MASKED(mask, member) \
1908 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1909 0, FL_KEY_MEMBER_SIZE(member)) \
77b9900e
JP		 1910
1911#define FL_KEY_SET(keys, cnt, id, member) \
1912 do { \
1913 keys[cnt].key_id = id; \
1914 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1915 cnt++; \
1916 } while(0);
1917
339ba878 1918#define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
77b9900e 1919 do { \
339ba878 1920 if (FL_KEY_IS_MASKED(mask, member)) \
77b9900e
JP		 1921 FL_KEY_SET(keys, cnt, id, member); \
1922 } while(0);
1923
33fb5cba
JP		 1924static void fl_init_dissector(struct flow_dissector *dissector,
1925 struct fl_flow_key *mask)
77b9900e
JP		 1926{
1927 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1928 size_t cnt = 0;
1929
8212ed77
JP		 1930 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1931 FLOW_DISSECTOR_KEY_META, meta);
42aecaa9 1932 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
77b9900e 1933 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
33fb5cba 1934 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1935 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
33fb5cba 1936 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1937 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
33fb5cba 1938 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1939 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
8ffb055b
YK		 1940 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1941 FLOW_DISSECTOR_KEY_PORTS, tp);
1942 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1943 FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range);
33fb5cba 1944 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
4d80cc0a 1945 FLOW_DISSECTOR_KEY_IP, ip);
33fb5cba 1946 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
fdfc7dd6 1947 FLOW_DISSECTOR_KEY_TCP, tcp);
33fb5cba 1948 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
7b684884 1949 FLOW_DISSECTOR_KEY_ICMP, icmp);
33fb5cba 1950 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
99d31326 1951 FLOW_DISSECTOR_KEY_ARP, arp);
33fb5cba 1952 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
a577d8f7 1953 FLOW_DISSECTOR_KEY_MPLS, mpls);
33fb5cba 1954 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
9399ae9a 1955 FLOW_DISSECTOR_KEY_VLAN, vlan);
33fb5cba 1956 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
d64efd09 1957 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
33fb5cba 1958 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1959 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
33fb5cba 1960 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1961 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
33fb5cba 1962 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1963 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
33fb5cba
JP		 1964 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1965 FL_KEY_IS_MASKED(mask, enc_ipv6))
519d1052
HHZ		 1966 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1967 enc_control);
33fb5cba 1968 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
f4d997fd 1969 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
33fb5cba 1970 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
0e2c17b6 1971 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
0a6e7778
PJV		 1972 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1973 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
e0ace68a
PB		 1974 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1975 FLOW_DISSECTOR_KEY_CT, ct);
5923b8f7
AL		 1976 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1977 FLOW_DISSECTOR_KEY_HASH, hash);
b4000312
BS		 1978 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1979 FLOW_DISSECTOR_KEY_NUM_OF_VLANS, num_of_vlans);
5008750e
WD		 1980 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1981 FLOW_DISSECTOR_KEY_PPPOE, pppoe);
8b189ea0
WD		 1982 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1983 FLOW_DISSECTOR_KEY_L2TPV3, l2tpv3);
77b9900e 1984
33fb5cba 1985 skb_flow_dissector_init(dissector, keys, cnt);
05cd271f
PB		 1986}
1987
1988static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1989 struct fl_flow_mask *mask)
1990{
1991 struct fl_flow_mask *newmask;
1992 int err;
1993
1994 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1995 if (!newmask)
1996 return ERR_PTR(-ENOMEM);
1997
1998 fl_mask_copy(newmask, mask);
1999
8ffb055b
YK		 2000 if ((newmask->key.tp_range.tp_min.dst &&
2001 newmask->key.tp_range.tp_max.dst) ||
2002 (newmask->key.tp_range.tp_min.src &&
2003 newmask->key.tp_range.tp_max.src))
5c72299f
AN		 2004 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
2005
05cd271f
PB		 2006 err = fl_init_mask_hashtable(newmask);
2007 if (err)
2008 goto errout_free;
2009
33fb5cba 2010 fl_init_dissector(&newmask->dissector, &newmask->key);
05cd271f
PB		 2011
2012 INIT_LIST_HEAD_RCU(&newmask->filters);
2013
f48ef4d5 2014 refcount_set(&newmask->refcnt, 1);
195c234d
VB		 2015 err = rhashtable_replace_fast(&head->ht, &mask->ht_node,
2016 &newmask->ht_node, mask_ht_params);
05cd271f
PB		 2017 if (err)
2018 goto errout_destroy;
2019
259e60f9 2020 spin_lock(&head->masks_lock);
05cd271f 2021 list_add_tail_rcu(&newmask->list, &head->masks);
259e60f9 2022 spin_unlock(&head->masks_lock);
05cd271f
PB		 2023
2024 return newmask;
2025
2026errout_destroy:
2027 rhashtable_destroy(&newmask->ht);
2028errout_free:
2029 kfree(newmask);
2030
2031 return ERR_PTR(err);
77b9900e
JP		 2032}
2033
2034static int fl_check_assign_mask(struct cls_fl_head *head,
05cd271f
PB		 2035 struct cls_fl_filter *fnew,
2036 struct cls_fl_filter *fold,
77b9900e
JP		 2037 struct fl_flow_mask *mask)
2038{
05cd271f 2039 struct fl_flow_mask *newmask;
f48ef4d5 2040 int ret = 0;
77b9900e 2041
f48ef4d5 2042 rcu_read_lock();
195c234d
VB		 2043
2044 /* Insert mask as temporary node to prevent concurrent creation of mask
2045 * with same key. Any concurrent lookups with same key will return
99815f50 2046 * -EAGAIN because mask's refcnt is zero.
195c234d
VB		 2047 */
2048 fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht,
2049 &mask->ht_node,
2050 mask_ht_params);
05cd271f 2051 if (!fnew->mask) {
f48ef4d5
VB		 2052 rcu_read_unlock();
2053
195c234d
VB		 2054 if (fold) {
2055 ret = -EINVAL;
2056 goto errout_cleanup;
2057 }
77b9900e 2058
05cd271f 2059 newmask = fl_create_new_mask(head, mask);
195c234d
VB		 2060 if (IS_ERR(newmask)) {
2061 ret = PTR_ERR(newmask);
2062 goto errout_cleanup;
2063 }
77b9900e 2064
05cd271f 2065 fnew->mask = newmask;
f48ef4d5 2066 return 0;
195c234d
VB		 2067 } else if (IS_ERR(fnew->mask)) {
2068 ret = PTR_ERR(fnew->mask);
f6521c58 2069 } else if (fold && fold->mask != fnew->mask) {
f48ef4d5
VB		 2070 ret = -EINVAL;
2071 } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) {
2072 /* Mask was deleted concurrently, try again */
2073 ret = -EAGAIN;
05cd271f 2074 }
f48ef4d5
VB		 2075 rcu_read_unlock();
2076 return ret;
195c234d
VB		 2077
2078errout_cleanup:
2079 rhashtable_remove_fast(&head->ht, &mask->ht_node,
2080 mask_ht_params);
195c234d 2081 return ret;
77b9900e
JP		 2082}
2083
2084static int fl_set_parms(struct net *net, struct tcf_proto *tp,
2085 struct cls_fl_filter *f, struct fl_flow_mask *mask,
2086 unsigned long base, struct nlattr **tb,
695176bf 2087 struct nlattr *est,
c86e0209
BZ		 2088 struct fl_flow_tmplt *tmplt,
2089 u32 flags, u32 fl_flags,
50a56190 2090 struct netlink_ext_ack *extack)
77b9900e 2091{
77b9900e
JP		 2092 int err;
2093
c86e0209
BZ		 2094 err = tcf_exts_validate_ex(net, tp, tb, est, &f->exts, flags,
2095 fl_flags, extack);
77b9900e
JP		 2096 if (err < 0)
2097 return err;
2098
2099 if (tb[TCA_FLOWER_CLASSID]) {
2100 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
695176bf 2101 if (flags & TCA_ACT_FLAGS_NO_RTNL)
c24e43d8 2102 rtnl_lock();
77b9900e 2103 tcf_bind_filter(tp, &f->res, base);
695176bf 2104 if (flags & TCA_ACT_FLAGS_NO_RTNL)
c24e43d8 2105 rtnl_unlock();
77b9900e
JP		 2106 }
2107
1057c55f 2108 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
77b9900e 2109 if (err)
45507529 2110 return err;
77b9900e
JP		 2111
2112 fl_mask_update_range(mask);
2113 fl_set_masked_key(&f->mkey, &f->key, mask);
2114
b95ec7eb
JP		 2115 if (!fl_mask_fits_tmplt(tmplt, mask)) {
2116 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
2117 return -EINVAL;
2118 }
2119
77b9900e 2120 return 0;
77b9900e
JP		 2121}
2122
1f17f774
VB		 2123static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
2124 struct cls_fl_filter *fold,
2125 bool *in_ht)
2126{
2127 struct fl_flow_mask *mask = fnew->mask;
2128 int err;
2129
9e35552a
VB		 2130 err = rhashtable_lookup_insert_fast(&mask->ht,
2131 &fnew->ht_node,
2132 mask->filter_ht_params);
1f17f774
VB		 2133 if (err) {
2134 *in_ht = false;
2135 /* It is okay if filter with same key exists when
2136 * overwriting.
2137 */
2138 return fold && err == -EEXIST ? 0 : err;
2139 }
2140
2141 *in_ht = true;
2142 return 0;
2143}
2144
77b9900e
JP		 2145static int fl_change(struct net *net, struct sk_buff *in_skb,
2146 struct tcf_proto *tp, unsigned long base,
2147 u32 handle, struct nlattr **tca,
695176bf 2148 void **arg, u32 flags,
12db03b6 2149 struct netlink_ext_ack *extack)
77b9900e 2150{
e474619a 2151 struct cls_fl_head *head = fl_head_dereference(tp);
695176bf 2152 bool rtnl_held = !(flags & TCA_ACT_FLAGS_NO_RTNL);
8113c095 2153 struct cls_fl_filter *fold = *arg;
77b9900e 2154 struct cls_fl_filter *fnew;
2cddd201 2155 struct fl_flow_mask *mask;
39b7b6a6 2156 struct nlattr **tb;
1f17f774 2157 bool in_ht;
77b9900e
JP		 2158 int err;
2159
06177558
VB		 2160 if (!tca[TCA_OPTIONS]) {
2161 err = -EINVAL;
2162 goto errout_fold;
2163 }
77b9900e 2164
2cddd201 2165 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
06177558
VB		 2166 if (!mask) {
2167 err = -ENOBUFS;
2168 goto errout_fold;
2169 }
39b7b6a6 2170
2cddd201
IV		 2171 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2172 if (!tb) {
2173 err = -ENOBUFS;
2174 goto errout_mask_alloc;
2175 }
2176
8cb08174
JB		 2177 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2178 tca[TCA_OPTIONS], fl_policy, NULL);
77b9900e 2179 if (err < 0)
39b7b6a6 2180 goto errout_tb;
77b9900e 2181
39b7b6a6
AB		 2182 if (fold && handle && fold->handle != handle) {
2183 err = -EINVAL;
2184 goto errout_tb;
2185 }
77b9900e
JP		 2186
2187 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
39b7b6a6
AB		 2188 if (!fnew) {
2189 err = -ENOBUFS;
2190 goto errout_tb;
2191 }
c049d56e 2192 INIT_LIST_HEAD(&fnew->hw_list);
06177558 2193 refcount_set(&fnew->refcnt, 1);
77b9900e 2194
14215108 2195 err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0);
b9a24bb7
WC		 2196 if (err < 0)
2197 goto errout;
77b9900e 2198
e69985c6
AV		 2199 if (tb[TCA_FLOWER_FLAGS]) {
2200 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
2201
2202 if (!tc_flags_valid(fnew->flags)) {
2203 err = -EINVAL;
ecb3dea4 2204 goto errout;
e69985c6
AV		 2205 }
2206 }
5b33f488 2207
695176bf 2208 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE],
c86e0209
BZ		 2209 tp->chain->tmplt_priv, flags, fnew->flags,
2210 extack);
77b9900e 2211 if (err)
ecb3dea4 2212 goto errout;
77b9900e 2213
2cddd201 2214 err = fl_check_assign_mask(head, fnew, fold, mask);
77b9900e 2215 if (err)
ecb3dea4
VB		 2216 goto errout;
2217
1f17f774
VB		 2218 err = fl_ht_insert_unique(fnew, fold, &in_ht);
2219 if (err)
2220 goto errout_mask;
2221
79685219 2222 if (!tc_skip_hw(fnew->flags)) {
c24e43d8 2223 err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack);
79685219 2224 if (err)
1f17f774 2225 goto errout_ht;
79685219 2226 }
5b33f488 2227
55593960
OG		 2228 if (!tc_in_hw(fnew->flags))
2229 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
2230
3d81e711
VB		 2231 spin_lock(&tp->lock);
2232
272ffaad
VB		 2233 /* tp was deleted concurrently. -EAGAIN will cause caller to lookup
2234 * proto again or create new one, if necessary.
2235 */
2236 if (tp->deleting) {
2237 err = -EAGAIN;
2238 goto errout_hw;
2239 }
2240
5b33f488 2241 if (fold) {
b2552b8c
VB		 2242 /* Fold filter was deleted concurrently. Retry lookup. */
2243 if (fold->deleted) {
2244 err = -EAGAIN;
2245 goto errout_hw;
2246 }
2247
620da486
VB		 2248 fnew->handle = handle;
2249
1f17f774
VB		 2250 if (!in_ht) {
2251 struct rhashtable_params params =
2252 fnew->mask->filter_ht_params;
2253
2254 err = rhashtable_insert_fast(&fnew->mask->ht,
2255 &fnew->ht_node,
2256 params);
2257 if (err)
2258 goto errout_hw;
2259 in_ht = true;
2260 }
620da486 2261
c049d56e 2262 refcount_inc(&fnew->refcnt);
599d2570
RD		 2263 rhashtable_remove_fast(&fold->mask->ht,
2264 &fold->ht_node,
2265 fold->mask->filter_ht_params);
234a4624 2266 idr_replace(&head->handle_idr, fnew, fnew->handle);
ff3532f2 2267 list_replace_rcu(&fold->list, &fnew->list);
b2552b8c 2268 fold->deleted = true;
620da486 2269
3d81e711
VB		 2270 spin_unlock(&tp->lock);
2271
9994677c 2272 fl_mask_put(head, fold->mask);
620da486 2273 if (!tc_skip_hw(fold->flags))
c24e43d8 2274 fl_hw_destroy_filter(tp, fold, rtnl_held, NULL);
77b9900e 2275 tcf_unbind_filter(tp, &fold->res);
06177558
VB		 2276 /* Caller holds reference to fold, so refcnt is always > 0
2277 * after this.
2278 */
2279 refcount_dec(&fold->refcnt);
2280 __fl_put(fold);
77b9900e 2281 } else {
620da486
VB		 2282 if (handle) {
2283 /* user specifies a handle and it doesn't exist */
2284 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2285 handle, GFP_ATOMIC);
9a2d9389
VB		 2286
2287 /* Filter with specified handle was concurrently
2288 * inserted after initial check in cls_api. This is not
2289 * necessarily an error if NLM_F_EXCL is not set in
2290 * message flags. Returning EAGAIN will cause cls_api to
2291 * try to update concurrently inserted rule.
2292 */
2293 if (err == -ENOSPC)
2294 err = -EAGAIN;
620da486
VB		 2295 } else {
2296 handle = 1;
2297 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2298 INT_MAX, GFP_ATOMIC);
2299 }
2300 if (err)
2301 goto errout_hw;
2302
c049d56e 2303 refcount_inc(&fnew->refcnt);
620da486 2304 fnew->handle = handle;
05cd271f 2305 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
3d81e711 2306 spin_unlock(&tp->lock);
77b9900e
JP		 2307 }
2308
620da486
VB		 2309 *arg = fnew;
2310
39b7b6a6 2311 kfree(tb);
99815f50 2312 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
77b9900e
JP		 2313 return 0;
2314
c049d56e
VB		 2315errout_ht:
2316 spin_lock(&tp->lock);
620da486 2317errout_hw:
c049d56e 2318 fnew->deleted = true;
3d81e711 2319 spin_unlock(&tp->lock);
620da486 2320 if (!tc_skip_hw(fnew->flags))
c24e43d8 2321 fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL);
1f17f774
VB		 2322 if (in_ht)
2323 rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
2324 fnew->mask->filter_ht_params);
ecb3dea4 2325errout_mask:
9994677c 2326 fl_mask_put(head, fnew->mask);
77b9900e 2327errout:
c049d56e 2328 __fl_put(fnew);
39b7b6a6
AB		 2329errout_tb:
2330 kfree(tb);
2cddd201 2331errout_mask_alloc:
99815f50 2332 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
06177558
VB		 2333errout_fold:
2334 if (fold)
2335 __fl_put(fold);
77b9900e
JP		 2336 return err;
2337}
2338
571acf21 2339static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
12db03b6 2340 bool rtnl_held, struct netlink_ext_ack *extack)
77b9900e 2341{
e474619a 2342 struct cls_fl_head *head = fl_head_dereference(tp);
8113c095 2343 struct cls_fl_filter *f = arg;
b2552b8c
VB		 2344 bool last_on_mask;
2345 int err = 0;
77b9900e 2346
c24e43d8 2347 err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack);
05cd271f 2348 *last = list_empty(&head->masks);
06177558
VB		 2349 __fl_put(f);
2350
b2552b8c 2351 return err;
77b9900e
JP		 2352}
2353
12db03b6
VB		 2354static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
2355 bool rtnl_held)
77b9900e 2356{
d39d7149
CW		 2357 struct cls_fl_head *head = fl_head_dereference(tp);
2358 unsigned long id = arg->cookie, tmp;
77b9900e 2359 struct cls_fl_filter *f;
05cd271f 2360
01683a14
VB		 2361 arg->count = arg->skip;
2362
d5ef1906 2363 rcu_read_lock();
d39d7149
CW		 2364 idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
2365 /* don't return filters that are being deleted */
2366 if (!refcount_inc_not_zero(&f->refcnt))
2367 continue;
d5ef1906
VB		 2368 rcu_read_unlock();
2369
01683a14 2370 if (arg->fn(tp, f, arg) < 0) {
06177558 2371 __fl_put(f);
01683a14 2372 arg->stop = 1;
d5ef1906 2373 rcu_read_lock();
01683a14 2374 break;
05cd271f 2375 }
06177558 2376 __fl_put(f);
01683a14 2377 arg->count++;
d5ef1906 2378 rcu_read_lock();
77b9900e 2379 }
d5ef1906 2380 rcu_read_unlock();
d39d7149 2381 arg->cookie = id;
77b9900e
JP		 2382}
2383
c049d56e
VB		 2384static struct cls_fl_filter *
2385fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add)
2386{
2387 struct cls_fl_head *head = fl_head_dereference(tp);
2388
2389 spin_lock(&tp->lock);
2390 if (list_empty(&head->hw_filters)) {
2391 spin_unlock(&tp->lock);
2392 return NULL;
2393 }
2394
2395 if (!f)
2396 f = list_entry(&head->hw_filters, struct cls_fl_filter,
2397 hw_list);
2398 list_for_each_entry_continue(f, &head->hw_filters, hw_list) {
2399 if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) {
2400 spin_unlock(&tp->lock);
2401 return f;
2402 }
2403 }
2404
2405 spin_unlock(&tp->lock);
2406 return NULL;
2407}
2408
a7323311 2409static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
31533cba
JH		 2410 void *cb_priv, struct netlink_ext_ack *extack)
2411{
31533cba 2412 struct tcf_block *block = tp->chain->block;
f9e30088 2413 struct flow_cls_offload cls_flower = {};
c049d56e 2414 struct cls_fl_filter *f = NULL;
31533cba
JH		 2415 int err;
2416
c049d56e
VB		 2417 /* hw_filters list can only be changed by hw offload functions after
2418 * obtaining rtnl lock. Make sure it is not changed while reoffload is
2419 * iterating it.
2420 */
2421 ASSERT_RTNL();
3a7b6861 2422
c049d56e 2423 while ((f = fl_get_next_hw_filter(tp, f, add))) {
95e27a4d
JH		 2424 cls_flower.rule =
2425 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
2426 if (!cls_flower.rule) {
2427 __fl_put(f);
2428 return -ENOMEM;
2429 }
31533cba 2430
95e27a4d 2431 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags,
d6787147 2432 extack);
95e27a4d 2433 cls_flower.command = add ?
f9e30088 2434 FLOW_CLS_REPLACE : FLOW_CLS_DESTROY;
95e27a4d
JH		 2435 cls_flower.cookie = (unsigned long)f;
2436 cls_flower.rule->match.dissector = &f->mask->dissector;
2437 cls_flower.rule->match.mask = &f->mask->key;
2438 cls_flower.rule->match.key = &f->mkey;
2439
c2ccf84e
IS		 2440 err = tc_setup_offload_action(&cls_flower.rule->action, &f->exts,
2441 cls_flower.common.extack);
95e27a4d 2442 if (err) {
8f256622 2443 kfree(cls_flower.rule);
95e27a4d 2444 if (tc_skip_sw(f->flags)) {
95e27a4d
JH		 2445 __fl_put(f);
2446 return err;
31533cba 2447 }
95e27a4d
JH		 2448 goto next_flow;
2449 }
31533cba 2450
95e27a4d
JH		 2451 cls_flower.classid = f->res.classid;
2452
40119211
VB		 2453 err = tc_setup_cb_reoffload(block, tp, add, cb,
2454 TC_SETUP_CLSFLOWER, &cls_flower,
2455 cb_priv, &f->flags,
2456 &f->in_hw_count);
9c1c0e12 2457 tc_cleanup_offload_action(&cls_flower.rule->action);
95e27a4d
JH		 2458 kfree(cls_flower.rule);
2459
2460 if (err) {
40119211
VB		 2461 __fl_put(f);
2462 return err;
31533cba 2463 }
95e27a4d 2464next_flow:
95e27a4d 2465 __fl_put(f);
31533cba
JH		 2466 }
2467
2468 return 0;
2469}
2470
a449a3e7
VB		 2471static void fl_hw_add(struct tcf_proto *tp, void *type_data)
2472{
2473 struct flow_cls_offload *cls_flower = type_data;
2474 struct cls_fl_filter *f =
2475 (struct cls_fl_filter *) cls_flower->cookie;
2476 struct cls_fl_head *head = fl_head_dereference(tp);
2477
2478 spin_lock(&tp->lock);
2479 list_add(&f->hw_list, &head->hw_filters);
2480 spin_unlock(&tp->lock);
2481}
2482
2483static void fl_hw_del(struct tcf_proto *tp, void *type_data)
2484{
2485 struct flow_cls_offload *cls_flower = type_data;
2486 struct cls_fl_filter *f =
2487 (struct cls_fl_filter *) cls_flower->cookie;
2488
2489 spin_lock(&tp->lock);
2490 if (!list_empty(&f->hw_list))
2491 list_del_init(&f->hw_list);
2492 spin_unlock(&tp->lock);
2493}
2494
8f256622
PNA		 2495static int fl_hw_create_tmplt(struct tcf_chain *chain,
2496 struct fl_flow_tmplt *tmplt)
34738452 2497{
f9e30088 2498 struct flow_cls_offload cls_flower = {};
34738452 2499 struct tcf_block *block = chain->block;
34738452 2500
e3ab786b 2501 cls_flower.rule = flow_rule_alloc(0);
8f256622
PNA		 2502 if (!cls_flower.rule)
2503 return -ENOMEM;
2504
34738452 2505 cls_flower.common.chain_index = chain->index;
f9e30088 2506 cls_flower.command = FLOW_CLS_TMPLT_CREATE;
34738452 2507 cls_flower.cookie = (unsigned long) tmplt;
8f256622
PNA		 2508 cls_flower.rule->match.dissector = &tmplt->dissector;
2509 cls_flower.rule->match.mask = &tmplt->mask;
2510 cls_flower.rule->match.key = &tmplt->dummy_key;
34738452
JP		 2511
2512 /* We don't care if driver (any of them) fails to handle this
2513 * call. It serves just as a hint for it.
2514 */
40119211 2515 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
8f256622
PNA		 2516 kfree(cls_flower.rule);
2517
2518 return 0;
34738452
JP		 2519}
2520
2521static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
2522 struct fl_flow_tmplt *tmplt)
2523{
f9e30088 2524 struct flow_cls_offload cls_flower = {};
34738452
JP		 2525 struct tcf_block *block = chain->block;
2526
2527 cls_flower.common.chain_index = chain->index;
f9e30088 2528 cls_flower.command = FLOW_CLS_TMPLT_DESTROY;
34738452
JP		 2529 cls_flower.cookie = (unsigned long) tmplt;
2530
40119211 2531 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
34738452
JP		 2532}
2533
b95ec7eb
JP		 2534static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
2535 struct nlattr **tca,
2536 struct netlink_ext_ack *extack)
2537{
2538 struct fl_flow_tmplt *tmplt;
2539 struct nlattr **tb;
2540 int err;
2541
2542 if (!tca[TCA_OPTIONS])
2543 return ERR_PTR(-EINVAL);
2544
2545 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2546 if (!tb)
2547 return ERR_PTR(-ENOBUFS);
8cb08174
JB		 2548 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2549 tca[TCA_OPTIONS], fl_policy, NULL);
b95ec7eb
JP		 2550 if (err)
2551 goto errout_tb;
2552
2553 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
1cbc36a5
DC		 2554 if (!tmplt) {
2555 err = -ENOMEM;
b95ec7eb 2556 goto errout_tb;
1cbc36a5 2557 }
b95ec7eb
JP		 2558 tmplt->chain = chain;
2559 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
2560 if (err)
2561 goto errout_tmplt;
b95ec7eb
JP		 2562
2563 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
2564
8f256622
PNA		 2565 err = fl_hw_create_tmplt(chain, tmplt);
2566 if (err)
2567 goto errout_tmplt;
34738452 2568
8f256622 2569 kfree(tb);
b95ec7eb
JP		 2570 return tmplt;
2571
2572errout_tmplt:
2573 kfree(tmplt);
2574errout_tb:
2575 kfree(tb);
2576 return ERR_PTR(err);
2577}
2578
ec3ed293
VB		 2579static void fl_tmplt_destroy(void *tmplt_priv)
2580{
2581 struct fl_flow_tmplt *tmplt = tmplt_priv;
2582
95278dda
CW		 2583 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
2584 kfree(tmplt);
ec3ed293
VB		 2585}
2586
77b9900e
JP		 2587static int fl_dump_key_val(struct sk_buff *skb,
2588 void *val, int val_type,
2589 void *mask, int mask_type, int len)
2590{
2591 int err;
2592
2593 if (!memchr_inv(mask, 0, len))
2594 return 0;
2595 err = nla_put(skb, val_type, len, val);
2596 if (err)
2597 return err;
2598 if (mask_type != TCA_FLOWER_UNSPEC) {
2599 err = nla_put(skb, mask_type, len, mask);
2600 if (err)
2601 return err;
2602 }
2603 return 0;
2604}
2605
5c72299f
AN		 2606static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
2607 struct fl_flow_key *mask)
2608{
8ffb055b
YK		 2609 if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst,
2610 TCA_FLOWER_KEY_PORT_DST_MIN,
2611 &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC,
2612 sizeof(key->tp_range.tp_min.dst)) ||
2613 fl_dump_key_val(skb, &key->tp_range.tp_max.dst,
2614 TCA_FLOWER_KEY_PORT_DST_MAX,
2615 &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC,
2616 sizeof(key->tp_range.tp_max.dst)) ||
2617 fl_dump_key_val(skb, &key->tp_range.tp_min.src,
2618 TCA_FLOWER_KEY_PORT_SRC_MIN,
2619 &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC,
2620 sizeof(key->tp_range.tp_min.src)) ||
2621 fl_dump_key_val(skb, &key->tp_range.tp_max.src,
2622 TCA_FLOWER_KEY_PORT_SRC_MAX,
2623 &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC,
2624 sizeof(key->tp_range.tp_max.src)))
5c72299f
AN		 2625 return -1;
2626
2627 return 0;
2628}
2629
61aec25a
GN		 2630static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb,
2631 struct flow_dissector_key_mpls *mpls_key,
2632 struct flow_dissector_key_mpls *mpls_mask,
2633 u8 lse_index)
2634{
2635 struct flow_dissector_mpls_lse *lse_mask = &mpls_mask->ls[lse_index];
2636 struct flow_dissector_mpls_lse *lse_key = &mpls_key->ls[lse_index];
2637 int err;
2638
2639 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH,
2640 lse_index + 1);
2641 if (err)
2642 return err;
2643
2644 if (lse_mask->mpls_ttl) {
2645 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL,
2646 lse_key->mpls_ttl);
2647 if (err)
2648 return err;
2649 }
2650 if (lse_mask->mpls_bos) {
2651 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS,
2652 lse_key->mpls_bos);
2653 if (err)
2654 return err;
2655 }
2656 if (lse_mask->mpls_tc) {
2657 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TC,
2658 lse_key->mpls_tc);
2659 if (err)
2660 return err;
2661 }
2662 if (lse_mask->mpls_label) {
7fdd375e
GN		 2663 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL,
2664 lse_key->mpls_label);
61aec25a
GN		 2665 if (err)
2666 return err;
2667 }
2668
2669 return 0;
2670}
2671
2672static int fl_dump_key_mpls_opts(struct sk_buff *skb,
2673 struct flow_dissector_key_mpls *mpls_key,
2674 struct flow_dissector_key_mpls *mpls_mask)
2675{
2676 struct nlattr *opts;
2677 struct nlattr *lse;
2678 u8 lse_index;
2679 int err;
2680
2681 opts = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS);
2682 if (!opts)
2683 return -EMSGSIZE;
2684
2685 for (lse_index = 0; lse_index < FLOW_DIS_MPLS_MAX; lse_index++) {
2686 if (!(mpls_mask->used_lses & 1 << lse_index))
2687 continue;
2688
2689 lse = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS_LSE);
2690 if (!lse) {
2691 err = -EMSGSIZE;
2692 goto err_opts;
2693 }
2694
2695 err = fl_dump_key_mpls_opt_lse(skb, mpls_key, mpls_mask,
2696 lse_index);
2697 if (err)
2698 goto err_opts_lse;
2699 nla_nest_end(skb, lse);
2700 }
2701 nla_nest_end(skb, opts);
2702
2703 return 0;
2704
2705err_opts_lse:
2706 nla_nest_cancel(skb, lse);
2707err_opts:
2708 nla_nest_cancel(skb, opts);
2709
2710 return err;
2711}
2712
a577d8f7
BL		 2713static int fl_dump_key_mpls(struct sk_buff *skb,
2714 struct flow_dissector_key_mpls *mpls_key,
2715 struct flow_dissector_key_mpls *mpls_mask)
2716{
58cff782
GN		 2717 struct flow_dissector_mpls_lse *lse_mask;
2718 struct flow_dissector_mpls_lse *lse_key;
a577d8f7
BL		 2719 int err;
2720
61aec25a 2721 if (!mpls_mask->used_lses)
a577d8f7 2722 return 0;
58cff782
GN		 2723
2724 lse_mask = &mpls_mask->ls[0];
2725 lse_key = &mpls_key->ls[0];
2726
61aec25a
GN		 2727 /* For backward compatibility, don't use the MPLS nested attributes if
2728 * the rule can be expressed using the old attributes.
2729 */
2730 if (mpls_mask->used_lses & ~1 ||
2731 (!lse_mask->mpls_ttl && !lse_mask->mpls_bos &&
2732 !lse_mask->mpls_tc && !lse_mask->mpls_label))
2733 return fl_dump_key_mpls_opts(skb, mpls_key, mpls_mask);
2734
58cff782 2735 if (lse_mask->mpls_ttl) {
a577d8f7 2736 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
58cff782 2737 lse_key->mpls_ttl);
a577d8f7
BL		 2738 if (err)
2739 return err;
2740 }
58cff782 2741 if (lse_mask->mpls_tc) {
a577d8f7 2742 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
58cff782 2743 lse_key->mpls_tc);
a577d8f7
BL		 2744 if (err)
2745 return err;
2746 }
58cff782 2747 if (lse_mask->mpls_label) {
a577d8f7 2748 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
58cff782 2749 lse_key->mpls_label);
a577d8f7
BL		 2750 if (err)
2751 return err;
2752 }
58cff782 2753 if (lse_mask->mpls_bos) {
a577d8f7 2754 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
58cff782 2755 lse_key->mpls_bos);
a577d8f7
BL		 2756 if (err)
2757 return err;
2758 }
2759 return 0;
2760}
2761
0e2c17b6 2762static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
4d80cc0a
OG		 2763 struct flow_dissector_key_ip *key,
2764 struct flow_dissector_key_ip *mask)
2765{
0e2c17b6
OG		 2766 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
2767 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
2768 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
2769 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
2770
2771 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
2772 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
4d80cc0a
OG		 2773 return -1;
2774
2775 return 0;
2776}
2777
9399ae9a 2778static int fl_dump_key_vlan(struct sk_buff *skb,
d64efd09 2779 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 2780 struct flow_dissector_key_vlan *vlan_key,
2781 struct flow_dissector_key_vlan *vlan_mask)
2782{
2783 int err;
2784
2785 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
2786 return 0;
2787 if (vlan_mask->vlan_id) {
d64efd09 2788 err = nla_put_u16(skb, vlan_id_key,
9399ae9a
HHZ		 2789 vlan_key->vlan_id);
2790 if (err)
2791 return err;
2792 }
2793 if (vlan_mask->vlan_priority) {
d64efd09 2794 err = nla_put_u8(skb, vlan_prio_key,
9399ae9a
HHZ		 2795 vlan_key->vlan_priority);
2796 if (err)
2797 return err;
2798 }
2799 return 0;
2800}
2801
faa3ffce
OG		 2802static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
2803 u32 *flower_key, u32 *flower_mask,
2804 u32 flower_flag_bit, u32 dissector_flag_bit)
2805{
2806 if (dissector_mask & dissector_flag_bit) {
2807 *flower_mask |= flower_flag_bit;
2808 if (dissector_key & dissector_flag_bit)
2809 *flower_key |= flower_flag_bit;
2810 }
2811}
2812
2813static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
2814{
2815 u32 key, mask;
2816 __be32 _key, _mask;
2817 int err;
2818
2819 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
2820 return 0;
2821
2822 key = 0;
2823 mask = 0;
2824
2825 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2826 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 2827 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2828 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
2829 FLOW_DIS_FIRST_FRAG);
faa3ffce
OG		 2830
2831 _key = cpu_to_be32(key);
2832 _mask = cpu_to_be32(mask);
2833
2834 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
2835 if (err)
2836 return err;
2837
2838 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
2839}
2840
0a6e7778
PJV		 2841static int fl_dump_key_geneve_opt(struct sk_buff *skb,
2842 struct flow_dissector_key_enc_opts *enc_opts)
2843{
2844 struct geneve_opt *opt;
2845 struct nlattr *nest;
2846 int opt_off = 0;
2847
ae0be8de 2848 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
0a6e7778
PJV		 2849 if (!nest)
2850 goto nla_put_failure;
2851
2852 while (enc_opts->len > opt_off) {
2853 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
2854
2855 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
2856 opt->opt_class))
2857 goto nla_put_failure;
2858 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
2859 opt->type))
2860 goto nla_put_failure;
2861 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
2862 opt->length * 4, opt->opt_data))
2863 goto nla_put_failure;
2864
2865 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
2866 }
2867 nla_nest_end(skb, nest);
2868 return 0;
2869
2870nla_put_failure:
2871 nla_nest_cancel(skb, nest);
2872 return -EMSGSIZE;
2873}
2874
d8f9dfae
XL		 2875static int fl_dump_key_vxlan_opt(struct sk_buff *skb,
2876 struct flow_dissector_key_enc_opts *enc_opts)
2877{
2878 struct vxlan_metadata *md;
2879 struct nlattr *nest;
2880
2881 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN);
2882 if (!nest)
2883 goto nla_put_failure;
2884
2885 md = (struct vxlan_metadata *)&enc_opts->data[0];
2886 if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp))
2887 goto nla_put_failure;
2888
2889 nla_nest_end(skb, nest);
2890 return 0;
2891
2892nla_put_failure:
2893 nla_nest_cancel(skb, nest);
2894 return -EMSGSIZE;
2895}
2896
79b1011c
XL		 2897static int fl_dump_key_erspan_opt(struct sk_buff *skb,
2898 struct flow_dissector_key_enc_opts *enc_opts)
2899{
2900 struct erspan_metadata *md;
2901 struct nlattr *nest;
2902
2903 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN);
2904 if (!nest)
2905 goto nla_put_failure;
2906
2907 md = (struct erspan_metadata *)&enc_opts->data[0];
2908 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version))
2909 goto nla_put_failure;
2910
2911 if (md->version == 1 &&
2912 nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index))
2913 goto nla_put_failure;
2914
2915 if (md->version == 2 &&
2916 (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR,
2917 md->u.md2.dir) ||
2918 nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID,
2919 get_hwid(&md->u.md2))))
2920 goto nla_put_failure;
2921
2922 nla_nest_end(skb, nest);
2923 return 0;
2924
2925nla_put_failure:
2926 nla_nest_cancel(skb, nest);
2927 return -EMSGSIZE;
2928}
2929
e3acda7a
WD		 2930static int fl_dump_key_gtp_opt(struct sk_buff *skb,
2931 struct flow_dissector_key_enc_opts *enc_opts)
2932
2933{
2934 struct gtp_pdu_session_info *session_info;
2935 struct nlattr *nest;
2936
2937 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GTP);
2938 if (!nest)
2939 goto nla_put_failure;
2940
2941 session_info = (struct gtp_pdu_session_info *)&enc_opts->data[0];
2942
2943 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GTP_PDU_TYPE,
2944 session_info->pdu_type))
2945 goto nla_put_failure;
2946
2947 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GTP_QFI, session_info->qfi))
2948 goto nla_put_failure;
2949
2950 nla_nest_end(skb, nest);
2951 return 0;
2952
2953nla_put_failure:
2954 nla_nest_cancel(skb, nest);
2955 return -EMSGSIZE;
2956}
2957
e0ace68a
PB		 2958static int fl_dump_key_ct(struct sk_buff *skb,
2959 struct flow_dissector_key_ct *key,
2960 struct flow_dissector_key_ct *mask)
2961{
2962 if (IS_ENABLED(CONFIG_NF_CONNTRACK) &&
2963 fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
2964 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
2965 sizeof(key->ct_state)))
2966 goto nla_put_failure;
2967
2968 if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
2969 fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
2970 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
2971 sizeof(key->ct_zone)))
2972 goto nla_put_failure;
2973
2974 if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) &&
2975 fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
2976 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
2977 sizeof(key->ct_mark)))
2978 goto nla_put_failure;
2979
2980 if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
2981 fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
2982 &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
2983 sizeof(key->ct_labels)))
2984 goto nla_put_failure;
2985
2986 return 0;
2987
2988nla_put_failure:
2989 return -EMSGSIZE;
2990}
2991
0a6e7778
PJV		 2992static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
2993 struct flow_dissector_key_enc_opts *enc_opts)
2994{
2995 struct nlattr *nest;
2996 int err;
2997
2998 if (!enc_opts->len)
2999 return 0;
3000
ae0be8de 3001 nest = nla_nest_start_noflag(skb, enc_opt_type);
0a6e7778
PJV		 3002 if (!nest)
3003 goto nla_put_failure;
3004
3005 switch (enc_opts->dst_opt_type) {
3006 case TUNNEL_GENEVE_OPT:
3007 err = fl_dump_key_geneve_opt(skb, enc_opts);
3008 if (err)
3009 goto nla_put_failure;
3010 break;
d8f9dfae
XL		 3011 case TUNNEL_VXLAN_OPT:
3012 err = fl_dump_key_vxlan_opt(skb, enc_opts);
3013 if (err)
3014 goto nla_put_failure;
3015 break;
79b1011c
XL		 3016 case TUNNEL_ERSPAN_OPT:
3017 err = fl_dump_key_erspan_opt(skb, enc_opts);
3018 if (err)
3019 goto nla_put_failure;
3020 break;
e3acda7a
WD		 3021 case TUNNEL_GTP_OPT:
3022 err = fl_dump_key_gtp_opt(skb, enc_opts);
3023 if (err)
3024 goto nla_put_failure;
3025 break;
0a6e7778
PJV		 3026 default:
3027 goto nla_put_failure;
3028 }
3029 nla_nest_end(skb, nest);
3030 return 0;
3031
3032nla_put_failure:
3033 nla_nest_cancel(skb, nest);
3034 return -EMSGSIZE;
3035}
3036
3037static int fl_dump_key_enc_opt(struct sk_buff *skb,
3038 struct flow_dissector_key_enc_opts *key_opts,
3039 struct flow_dissector_key_enc_opts *msk_opts)
3040{
3041 int err;
3042
3043 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
3044 if (err)
3045 return err;
3046
3047 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
3048}
3049
f5749081
JP		 3050static int fl_dump_key(struct sk_buff *skb, struct net *net,
3051 struct fl_flow_key *key, struct fl_flow_key *mask)
77b9900e 3052{
8212ed77 3053 if (mask->meta.ingress_ifindex) {
77b9900e
JP		 3054 struct net_device *dev;
3055
8212ed77 3056 dev = __dev_get_by_index(net, key->meta.ingress_ifindex);
77b9900e
JP		 3057 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
3058 goto nla_put_failure;
3059 }
3060
3061 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
3062 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
3063 sizeof(key->eth.dst)) ||
3064 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
3065 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
3066 sizeof(key->eth.src)) ||
3067 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
3068 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
3069 sizeof(key->basic.n_proto)))
3070 goto nla_put_failure;
9399ae9a 3071
b4000312
BS		 3072 if (mask->num_of_vlans.num_of_vlans) {
3073 if (nla_put_u8(skb, TCA_FLOWER_KEY_NUM_OF_VLANS, key->num_of_vlans.num_of_vlans))
3074 goto nla_put_failure;
3075 }
3076
a577d8f7
BL		 3077 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
3078 goto nla_put_failure;
3079
d64efd09
JL		 3080 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
3081 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
9399ae9a
HHZ		 3082 goto nla_put_failure;
3083
d64efd09
JL		 3084 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
3085 TCA_FLOWER_KEY_CVLAN_PRIO,
3086 &key->cvlan, &mask->cvlan) ||
3087 (mask->cvlan.vlan_tpid &&
158abbf1
JL		 3088 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
3089 key->cvlan.vlan_tpid)))
d3069512
JL		 3090 goto nla_put_failure;
3091
5e9a0fe4 3092 if (mask->basic.n_proto) {
2105f700 3093 if (mask->cvlan.vlan_eth_type) {
5e9a0fe4
JL		 3094 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
3095 key->basic.n_proto))
3096 goto nla_put_failure;
2105f700 3097 } else if (mask->vlan.vlan_eth_type) {
5e9a0fe4 3098 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2105f700 3099 key->vlan.vlan_eth_type))
5e9a0fe4
JL		 3100 goto nla_put_failure;
3101 }
d64efd09
JL		 3102 }
3103
77b9900e
JP		 3104 if ((key->basic.n_proto == htons(ETH_P_IP) ||
3105 key->basic.n_proto == htons(ETH_P_IPV6)) &&
4d80cc0a 3106 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
77b9900e 3107 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
4d80cc0a 3108 sizeof(key->basic.ip_proto)) ||
0e2c17b6 3109 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
77b9900e
JP		 3110 goto nla_put_failure;
3111
5008750e
WD		 3112 if (mask->pppoe.session_id) {
3113 if (nla_put_be16(skb, TCA_FLOWER_KEY_PPPOE_SID,
3114 key->pppoe.session_id))
3115 goto nla_put_failure;
3116 }
3117 if (mask->basic.n_proto && mask->pppoe.ppp_proto) {
3118 if (nla_put_be16(skb, TCA_FLOWER_KEY_PPP_PROTO,
3119 key->pppoe.ppp_proto))
3120 goto nla_put_failure;
3121 }
3122
c3f83241 3123 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
77b9900e
JP		 3124 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
3125 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
3126 sizeof(key->ipv4.src)) ||
3127 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
3128 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
3129 sizeof(key->ipv4.dst))))
3130 goto nla_put_failure;
c3f83241 3131 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
77b9900e
JP		 3132 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
3133 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
3134 sizeof(key->ipv6.src)) ||
3135 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
3136 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
3137 sizeof(key->ipv6.dst))))
3138 goto nla_put_failure;
3139
3140 if (key->basic.ip_proto == IPPROTO_TCP &&
3141 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 3142 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 3143 sizeof(key->tp.src)) ||
3144 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 3145 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
fdfc7dd6
JP		 3146 sizeof(key->tp.dst)) ||
3147 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
3148 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
3149 sizeof(key->tcp.flags))))
77b9900e
JP		 3150 goto nla_put_failure;
3151 else if (key->basic.ip_proto == IPPROTO_UDP &&
3152 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 3153 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 3154 sizeof(key->tp.src)) ||
3155 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 3156 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
5976c5f4
SH		 3157 sizeof(key->tp.dst))))
3158 goto nla_put_failure;
3159 else if (key->basic.ip_proto == IPPROTO_SCTP &&
3160 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
3161 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
3162 sizeof(key->tp.src)) ||
3163 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
3164 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
77b9900e
JP		 3165 sizeof(key->tp.dst))))
3166 goto nla_put_failure;
7b684884
SH		 3167 else if (key->basic.n_proto == htons(ETH_P_IP) &&
3168 key->basic.ip_proto == IPPROTO_ICMP &&
3169 (fl_dump_key_val(skb, &key->icmp.type,
3170 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
3171 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
3172 sizeof(key->icmp.type)) ||
3173 fl_dump_key_val(skb, &key->icmp.code,
3174 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
3175 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
3176 sizeof(key->icmp.code))))
3177 goto nla_put_failure;
3178 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
3179 key->basic.ip_proto == IPPROTO_ICMPV6 &&
3180 (fl_dump_key_val(skb, &key->icmp.type,
3181 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
3182 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
3183 sizeof(key->icmp.type)) ||
3184 fl_dump_key_val(skb, &key->icmp.code,
3185 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
3186 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
3187 sizeof(key->icmp.code))))
3188 goto nla_put_failure;
99d31326
SH		 3189 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
3190 key->basic.n_proto == htons(ETH_P_RARP)) &&
3191 (fl_dump_key_val(skb, &key->arp.sip,
3192 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
3193 TCA_FLOWER_KEY_ARP_SIP_MASK,
3194 sizeof(key->arp.sip)) ||
3195 fl_dump_key_val(skb, &key->arp.tip,
3196 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
3197 TCA_FLOWER_KEY_ARP_TIP_MASK,
3198 sizeof(key->arp.tip)) ||
3199 fl_dump_key_val(skb, &key->arp.op,
3200 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
3201 TCA_FLOWER_KEY_ARP_OP_MASK,
3202 sizeof(key->arp.op)) ||
3203 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
3204 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
3205 sizeof(key->arp.sha)) ||
3206 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
3207 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
3208 sizeof(key->arp.tha))))
3209 goto nla_put_failure;
8b189ea0
WD		 3210 else if (key->basic.ip_proto == IPPROTO_L2TP &&
3211 fl_dump_key_val(skb, &key->l2tpv3.session_id,
3212 TCA_FLOWER_KEY_L2TPV3_SID,
3213 &mask->l2tpv3.session_id,
3214 TCA_FLOWER_UNSPEC,
3215 sizeof(key->l2tpv3.session_id)))
3216 goto nla_put_failure;
77b9900e 3217
5c72299f
AN		 3218 if ((key->basic.ip_proto == IPPROTO_TCP ||
3219 key->basic.ip_proto == IPPROTO_UDP ||
3220 key->basic.ip_proto == IPPROTO_SCTP) &&
3221 fl_dump_key_port_range(skb, key, mask))
3222 goto nla_put_failure;
3223
bc3103f1
AV		 3224 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
3225 (fl_dump_key_val(skb, &key->enc_ipv4.src,
3226 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
3227 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
3228 sizeof(key->enc_ipv4.src)) ||
3229 fl_dump_key_val(skb, &key->enc_ipv4.dst,
3230 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
3231 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
3232 sizeof(key->enc_ipv4.dst))))
3233 goto nla_put_failure;
3234 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
3235 (fl_dump_key_val(skb, &key->enc_ipv6.src,
3236 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
3237 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
3238 sizeof(key->enc_ipv6.src)) ||
3239 fl_dump_key_val(skb, &key->enc_ipv6.dst,
3240 TCA_FLOWER_KEY_ENC_IPV6_DST,
3241 &mask->enc_ipv6.dst,
3242 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
3243 sizeof(key->enc_ipv6.dst))))
3244 goto nla_put_failure;
3245
3246 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 3247 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
f4d997fd
HHZ		 3248 sizeof(key->enc_key_id)) ||
3249 fl_dump_key_val(skb, &key->enc_tp.src,
3250 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
3251 &mask->enc_tp.src,
3252 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
3253 sizeof(key->enc_tp.src)) ||
3254 fl_dump_key_val(skb, &key->enc_tp.dst,
3255 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
3256 &mask->enc_tp.dst,
3257 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
0e2c17b6 3258 sizeof(key->enc_tp.dst)) ||
0a6e7778
PJV		 3259 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
3260 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
bc3103f1
AV		 3261 goto nla_put_failure;
3262
e0ace68a
PB		 3263 if (fl_dump_key_ct(skb, &key->ct, &mask->ct))
3264 goto nla_put_failure;
3265
faa3ffce
OG		 3266 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
3267 goto nla_put_failure;
3268
5923b8f7
AL		 3269 if (fl_dump_key_val(skb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
3270 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
3271 sizeof(key->hash.hash)))
3272 goto nla_put_failure;
3273
f5749081
JP		 3274 return 0;
3275
3276nla_put_failure:
3277 return -EMSGSIZE;
3278}
3279
3280static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
12db03b6 3281 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
f5749081
JP		 3282{
3283 struct cls_fl_filter *f = fh;
3284 struct nlattr *nest;
3285 struct fl_flow_key *key, *mask;
3d81e711 3286 bool skip_hw;
f5749081
JP		 3287
3288 if (!f)
3289 return skb->len;
3290
3291 t->tcm_handle = f->handle;
3292
ae0be8de 3293 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
f5749081
JP		 3294 if (!nest)
3295 goto nla_put_failure;
3296
3d81e711
VB		 3297 spin_lock(&tp->lock);
3298
f5749081
JP		 3299 if (f->res.classid &&
3300 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
3d81e711 3301 goto nla_put_failure_locked;
f5749081
JP		 3302
3303 key = &f->key;
3304 mask = &f->mask->key;
3d81e711 3305 skip_hw = tc_skip_hw(f->flags);
f5749081
JP		 3306
3307 if (fl_dump_key(skb, net, key, mask))
3d81e711 3308 goto nla_put_failure_locked;
f5749081 3309
749e6720 3310 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3d81e711
VB		 3311 goto nla_put_failure_locked;
3312
3313 spin_unlock(&tp->lock);
3314
3315 if (!skip_hw)
c24e43d8 3316 fl_hw_update_stats(tp, f, rtnl_held);
e69985c6 3317
86c55361
VB		 3318 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
3319 goto nla_put_failure;
3320
77b9900e
JP		 3321 if (tcf_exts_dump(skb, &f->exts))
3322 goto nla_put_failure;
3323
3324 nla_nest_end(skb, nest);
3325
3326 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
3327 goto nla_put_failure;
3328
3329 return skb->len;
3330
3d81e711
VB		 3331nla_put_failure_locked:
3332 spin_unlock(&tp->lock);
77b9900e
JP		 3333nla_put_failure:
3334 nla_nest_cancel(skb, nest);
3335 return -1;
3336}
3337
0348451d
VB		 3338static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
3339 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3340{
3341 struct cls_fl_filter *f = fh;
3342 struct nlattr *nest;
3343 bool skip_hw;
3344
3345 if (!f)
3346 return skb->len;
3347
3348 t->tcm_handle = f->handle;
3349
3350 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3351 if (!nest)
3352 goto nla_put_failure;
3353
3354 spin_lock(&tp->lock);
3355
3356 skip_hw = tc_skip_hw(f->flags);
3357
3358 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3359 goto nla_put_failure_locked;
3360
3361 spin_unlock(&tp->lock);
3362
3363 if (!skip_hw)
3364 fl_hw_update_stats(tp, f, rtnl_held);
3365
3366 if (tcf_exts_terse_dump(skb, &f->exts))
3367 goto nla_put_failure;
3368
3369 nla_nest_end(skb, nest);
3370
3371 return skb->len;
3372
3373nla_put_failure_locked:
3374 spin_unlock(&tp->lock);
3375nla_put_failure:
3376 nla_nest_cancel(skb, nest);
3377 return -1;
3378}
3379
b95ec7eb
JP		 3380static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
3381{
3382 struct fl_flow_tmplt *tmplt = tmplt_priv;
3383 struct fl_flow_key *key, *mask;
3384 struct nlattr *nest;
3385
ae0be8de 3386 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
b95ec7eb
JP		 3387 if (!nest)
3388 goto nla_put_failure;
3389
3390 key = &tmplt->dummy_key;
3391 mask = &tmplt->mask;
3392
3393 if (fl_dump_key(skb, net, key, mask))
3394 goto nla_put_failure;
3395
3396 nla_nest_end(skb, nest);
3397
3398 return skb->len;
3399
3400nla_put_failure:
3401 nla_nest_cancel(skb, nest);
3402 return -EMSGSIZE;
3403}
3404
2e24cd75
CW		 3405static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q,
3406 unsigned long base)
07d79fc7
CW		 3407{
3408 struct cls_fl_filter *f = fh;
3409
cc9039a1 3410 tc_cls_bind_class(classid, cl, q, &f->res, base);
07d79fc7
CW		 3411}
3412
a5b72a08
DC		 3413static bool fl_delete_empty(struct tcf_proto *tp)
3414{
3415 struct cls_fl_head *head = fl_head_dereference(tp);
3416
3417 spin_lock(&tp->lock);
3418 tp->deleting = idr_is_empty(&head->handle_idr);
3419 spin_unlock(&tp->lock);
3420
3421 return tp->deleting;
3422}
3423
77b9900e
JP		 3424static struct tcf_proto_ops cls_fl_ops __read_mostly = {
3425 .kind = "flower",
3426 .classify = fl_classify,
3427 .init = fl_init,
3428 .destroy = fl_destroy,
3429 .get = fl_get,
06177558 3430 .put = fl_put,
77b9900e
JP		 3431 .change = fl_change,
3432 .delete = fl_delete,
a5b72a08 3433 .delete_empty = fl_delete_empty,
77b9900e 3434 .walk = fl_walk,
31533cba 3435 .reoffload = fl_reoffload,
a449a3e7
VB		 3436 .hw_add = fl_hw_add,
3437 .hw_del = fl_hw_del,
77b9900e 3438 .dump = fl_dump,
0348451d 3439 .terse_dump = fl_terse_dump,
07d79fc7 3440 .bind_class = fl_bind_class,
b95ec7eb
JP		 3441 .tmplt_create = fl_tmplt_create,
3442 .tmplt_destroy = fl_tmplt_destroy,
3443 .tmplt_dump = fl_tmplt_dump,
77b9900e 3444 .owner = THIS_MODULE,
92149190 3445 .flags = TCF_PROTO_OPS_DOIT_UNLOCKED,
77b9900e
JP		 3446};
3447
3448static int __init cls_fl_init(void)
3449{
3450 return register_tcf_proto_ops(&cls_fl_ops);
3451}
3452
3453static void __exit cls_fl_exit(void)
3454{
3455 unregister_tcf_proto_ops(&cls_fl_ops);
3456}
3457
3458module_init(cls_fl_init);
3459module_exit(cls_fl_exit);
3460
3461MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
3462MODULE_DESCRIPTION("Flower classifier");
3463MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)