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flow_offload: add flow action infrastructure
[mirror_ubuntu-hirsute-kernel.git] / net / sched / cls_flower.c
CommitLineData
77b9900e
JP		 1/*
2 * net/sched/cls_flower.c Flower classifier
3 *
4 * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/rhashtable.h>
d9363774 16#include <linux/workqueue.h>
77b9900e
JP		 17
18#include <linux/if_ether.h>
19#include <linux/in6.h>
20#include <linux/ip.h>
a577d8f7 21#include <linux/mpls.h>
77b9900e
JP		 22
23#include <net/sch_generic.h>
24#include <net/pkt_cls.h>
25#include <net/ip.h>
26#include <net/flow_dissector.h>
0a6e7778 27#include <net/geneve.h>
77b9900e 28
bc3103f1
AV		 29#include <net/dst.h>
30#include <net/dst_metadata.h>
31
77b9900e
JP		 32struct fl_flow_key {
33 int indev_ifindex;
42aecaa9 34 struct flow_dissector_key_control control;
bc3103f1 35 struct flow_dissector_key_control enc_control;
77b9900e
JP		 36 struct flow_dissector_key_basic basic;
37 struct flow_dissector_key_eth_addrs eth;
9399ae9a 38 struct flow_dissector_key_vlan vlan;
d64efd09 39 struct flow_dissector_key_vlan cvlan;
77b9900e 40 union {
c3f83241 41 struct flow_dissector_key_ipv4_addrs ipv4;
77b9900e
JP		 42 struct flow_dissector_key_ipv6_addrs ipv6;
43 };
44 struct flow_dissector_key_ports tp;
7b684884 45 struct flow_dissector_key_icmp icmp;
99d31326 46 struct flow_dissector_key_arp arp;
bc3103f1
AV		 47 struct flow_dissector_key_keyid enc_key_id;
48 union {
49 struct flow_dissector_key_ipv4_addrs enc_ipv4;
50 struct flow_dissector_key_ipv6_addrs enc_ipv6;
51 };
f4d997fd 52 struct flow_dissector_key_ports enc_tp;
a577d8f7 53 struct flow_dissector_key_mpls mpls;
fdfc7dd6 54 struct flow_dissector_key_tcp tcp;
4d80cc0a 55 struct flow_dissector_key_ip ip;
0e2c17b6 56 struct flow_dissector_key_ip enc_ip;
0a6e7778 57 struct flow_dissector_key_enc_opts enc_opts;
5c72299f
AN		 58 struct flow_dissector_key_ports tp_min;
59 struct flow_dissector_key_ports tp_max;
77b9900e
JP		 60} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
61
62struct fl_flow_mask_range {
63 unsigned short int start;
64 unsigned short int end;
65};
66
67struct fl_flow_mask {
68 struct fl_flow_key key;
69 struct fl_flow_mask_range range;
5c72299f 70 u32 flags;
05cd271f
PB		 71 struct rhash_head ht_node;
72 struct rhashtable ht;
73 struct rhashtable_params filter_ht_params;
74 struct flow_dissector dissector;
75 struct list_head filters;
44a5cd43 76 struct rcu_work rwork;
05cd271f 77 struct list_head list;
77b9900e
JP		 78};
79
b95ec7eb
JP		 80struct fl_flow_tmplt {
81 struct fl_flow_key dummy_key;
82 struct fl_flow_key mask;
83 struct flow_dissector dissector;
84 struct tcf_chain *chain;
85};
86
77b9900e
JP		 87struct cls_fl_head {
88 struct rhashtable ht;
05cd271f 89 struct list_head masks;
aaa908ff 90 struct rcu_work rwork;
c15ab236 91 struct idr handle_idr;
77b9900e
JP		 92};
93
94struct cls_fl_filter {
05cd271f 95 struct fl_flow_mask *mask;
77b9900e
JP		 96 struct rhash_head ht_node;
97 struct fl_flow_key mkey;
98 struct tcf_exts exts;
99 struct tcf_result res;
100 struct fl_flow_key key;
101 struct list_head list;
102 u32 handle;
e69985c6 103 u32 flags;
86c55361 104 u32 in_hw_count;
aaa908ff 105 struct rcu_work rwork;
7091d8c7 106 struct net_device *hw_dev;
77b9900e
JP		 107};
108
05cd271f
PB		 109static const struct rhashtable_params mask_ht_params = {
110 .key_offset = offsetof(struct fl_flow_mask, key),
111 .key_len = sizeof(struct fl_flow_key),
112 .head_offset = offsetof(struct fl_flow_mask, ht_node),
113 .automatic_shrinking = true,
114};
115
77b9900e
JP		 116static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
117{
118 return mask->range.end - mask->range.start;
119}
120
121static void fl_mask_update_range(struct fl_flow_mask *mask)
122{
123 const u8 *bytes = (const u8 *) &mask->key;
124 size_t size = sizeof(mask->key);
05cd271f 125 size_t i, first = 0, last;
77b9900e 126
05cd271f
PB		 127 for (i = 0; i < size; i++) {
128 if (bytes[i]) {
129 first = i;
130 break;
131 }
132 }
133 last = first;
134 for (i = size - 1; i != first; i--) {
77b9900e 135 if (bytes[i]) {
77b9900e 136 last = i;
05cd271f 137 break;
77b9900e
JP		 138 }
139 }
140 mask->range.start = rounddown(first, sizeof(long));
141 mask->range.end = roundup(last + 1, sizeof(long));
142}
143
144static void *fl_key_get_start(struct fl_flow_key *key,
145 const struct fl_flow_mask *mask)
146{
147 return (u8 *) key + mask->range.start;
148}
149
150static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
151 struct fl_flow_mask *mask)
152{
153 const long *lkey = fl_key_get_start(key, mask);
154 const long *lmask = fl_key_get_start(&mask->key, mask);
155 long *lmkey = fl_key_get_start(mkey, mask);
156 int i;
157
158 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
159 *lmkey++ = *lkey++ & *lmask++;
160}
161
b95ec7eb
JP		 162static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
163 struct fl_flow_mask *mask)
164{
165 const long *lmask = fl_key_get_start(&mask->key, mask);
166 const long *ltmplt;
167 int i;
168
169 if (!tmplt)
170 return true;
171 ltmplt = fl_key_get_start(&tmplt->mask, mask);
172 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
173 if (~*ltmplt++ & *lmask++)
174 return false;
175 }
176 return true;
177}
178
77b9900e
JP		 179static void fl_clear_masked_range(struct fl_flow_key *key,
180 struct fl_flow_mask *mask)
181{
182 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
183}
184
5c72299f
AN		 185static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter,
186 struct fl_flow_key *key,
187 struct fl_flow_key *mkey)
188{
189 __be16 min_mask, max_mask, min_val, max_val;
190
191 min_mask = htons(filter->mask->key.tp_min.dst);
192 max_mask = htons(filter->mask->key.tp_max.dst);
193 min_val = htons(filter->key.tp_min.dst);
194 max_val = htons(filter->key.tp_max.dst);
195
196 if (min_mask && max_mask) {
197 if (htons(key->tp.dst) < min_val ||
198 htons(key->tp.dst) > max_val)
199 return false;
200
201 /* skb does not have min and max values */
202 mkey->tp_min.dst = filter->mkey.tp_min.dst;
203 mkey->tp_max.dst = filter->mkey.tp_max.dst;
204 }
205 return true;
206}
207
208static bool fl_range_port_src_cmp(struct cls_fl_filter *filter,
209 struct fl_flow_key *key,
210 struct fl_flow_key *mkey)
211{
212 __be16 min_mask, max_mask, min_val, max_val;
213
214 min_mask = htons(filter->mask->key.tp_min.src);
215 max_mask = htons(filter->mask->key.tp_max.src);
216 min_val = htons(filter->key.tp_min.src);
217 max_val = htons(filter->key.tp_max.src);
218
219 if (min_mask && max_mask) {
220 if (htons(key->tp.src) < min_val ||
221 htons(key->tp.src) > max_val)
222 return false;
223
224 /* skb does not have min and max values */
225 mkey->tp_min.src = filter->mkey.tp_min.src;
226 mkey->tp_max.src = filter->mkey.tp_max.src;
227 }
228 return true;
229}
230
231static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask,
232 struct fl_flow_key *mkey)
a3308d8f 233{
05cd271f
PB		 234 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
235 mask->filter_ht_params);
a3308d8f
PB		 236}
237
5c72299f
AN		 238static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask,
239 struct fl_flow_key *mkey,
240 struct fl_flow_key *key)
241{
242 struct cls_fl_filter *filter, *f;
243
244 list_for_each_entry_rcu(filter, &mask->filters, list) {
245 if (!fl_range_port_dst_cmp(filter, key, mkey))
246 continue;
247
248 if (!fl_range_port_src_cmp(filter, key, mkey))
249 continue;
250
251 f = __fl_lookup(mask, mkey);
252 if (f)
253 return f;
254 }
255 return NULL;
256}
257
258static struct cls_fl_filter *fl_lookup(struct fl_flow_mask *mask,
259 struct fl_flow_key *mkey,
260 struct fl_flow_key *key)
261{
262 if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE))
263 return fl_lookup_range(mask, mkey, key);
264
265 return __fl_lookup(mask, mkey);
266}
267
77b9900e
JP		 268static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
269 struct tcf_result *res)
270{
271 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
272 struct cls_fl_filter *f;
05cd271f 273 struct fl_flow_mask *mask;
77b9900e
JP		 274 struct fl_flow_key skb_key;
275 struct fl_flow_key skb_mkey;
276
05cd271f
PB		 277 list_for_each_entry_rcu(mask, &head->masks, list) {
278 fl_clear_masked_range(&skb_key, mask);
bc3103f1 279
05cd271f
PB		 280 skb_key.indev_ifindex = skb->skb_iif;
281 /* skb_flow_dissect() does not set n_proto in case an unknown
282 * protocol, so do it rather here.
283 */
284 skb_key.basic.n_proto = skb->protocol;
285 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
286 skb_flow_dissect(skb, &mask->dissector, &skb_key, 0);
77b9900e 287
05cd271f 288 fl_set_masked_key(&skb_mkey, &skb_key, mask);
77b9900e 289
5c72299f 290 f = fl_lookup(mask, &skb_mkey, &skb_key);
05cd271f
PB		 291 if (f && !tc_skip_sw(f->flags)) {
292 *res = f->res;
293 return tcf_exts_exec(skb, &f->exts, res);
294 }
77b9900e
JP		 295 }
296 return -1;
297}
298
299static int fl_init(struct tcf_proto *tp)
300{
301 struct cls_fl_head *head;
302
303 head = kzalloc(sizeof(*head), GFP_KERNEL);
304 if (!head)
305 return -ENOBUFS;
306
05cd271f 307 INIT_LIST_HEAD_RCU(&head->masks);
77b9900e 308 rcu_assign_pointer(tp->root, head);
c15ab236 309 idr_init(&head->handle_idr);
77b9900e 310
05cd271f
PB		 311 return rhashtable_init(&head->ht, &mask_ht_params);
312}
313
44a5cd43
PA		 314static void fl_mask_free(struct fl_flow_mask *mask)
315{
316 rhashtable_destroy(&mask->ht);
317 kfree(mask);
318}
319
320static void fl_mask_free_work(struct work_struct *work)
321{
322 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
323 struct fl_flow_mask, rwork);
324
325 fl_mask_free(mask);
326}
327
05cd271f
PB		 328static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask,
329 bool async)
330{
331 if (!list_empty(&mask->filters))
332 return false;
333
334 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
05cd271f
PB		 335 list_del_rcu(&mask->list);
336 if (async)
44a5cd43 337 tcf_queue_work(&mask->rwork, fl_mask_free_work);
05cd271f 338 else
44a5cd43 339 fl_mask_free(mask);
05cd271f
PB		 340
341 return true;
77b9900e
JP		 342}
343
0dadc117
CW		 344static void __fl_destroy_filter(struct cls_fl_filter *f)
345{
346 tcf_exts_destroy(&f->exts);
347 tcf_exts_put_net(&f->exts);
348 kfree(f);
349}
350
0552c8af 351static void fl_destroy_filter_work(struct work_struct *work)
77b9900e 352{
aaa908ff
CW		 353 struct cls_fl_filter *f = container_of(to_rcu_work(work),
354 struct cls_fl_filter, rwork);
77b9900e 355
0552c8af 356 rtnl_lock();
0dadc117 357 __fl_destroy_filter(f);
0552c8af
CW		 358 rtnl_unlock();
359}
360
1b0f8037
JK		 361static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
362 struct netlink_ext_ack *extack)
5b33f488 363{
de4784ca 364 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 365 struct tcf_block *block = tp->chain->block;
5b33f488 366
1b0f8037 367 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
de4784ca
JP		 368 cls_flower.command = TC_CLSFLOWER_DESTROY;
369 cls_flower.cookie = (unsigned long) f;
5b33f488 370
aeb3fecd 371 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
caa72601 372 tcf_block_offload_dec(block, &f->flags);
5b33f488
AV		 373}
374
e8eb36cd 375static int fl_hw_replace_filter(struct tcf_proto *tp,
41002038
QM		 376 struct cls_fl_filter *f,
377 struct netlink_ext_ack *extack)
5b33f488 378{
de4784ca 379 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 380 struct tcf_block *block = tp->chain->block;
717503b9 381 bool skip_sw = tc_skip_sw(f->flags);
e8eb36cd 382 int err;
5b33f488 383
e3ab786b 384 cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts));
8f256622
PNA		 385 if (!cls_flower.rule)
386 return -ENOMEM;
387
ea205940 388 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
de4784ca
JP		 389 cls_flower.command = TC_CLSFLOWER_REPLACE;
390 cls_flower.cookie = (unsigned long) f;
8f256622
PNA		 391 cls_flower.rule->match.dissector = &f->mask->dissector;
392 cls_flower.rule->match.mask = &f->mask->key;
393 cls_flower.rule->match.key = &f->mkey;
de4784ca 394 cls_flower.exts = &f->exts;
384c181e 395 cls_flower.classid = f->res.classid;
5b33f488 396
aeb3fecd 397 err = tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, skip_sw);
8f256622
PNA		 398 kfree(cls_flower.rule);
399
717503b9 400 if (err < 0) {
1b0f8037 401 fl_hw_destroy_filter(tp, f, NULL);
e8eb36cd 402 return err;
717503b9 403 } else if (err > 0) {
31533cba 404 f->in_hw_count = err;
caa72601 405 tcf_block_offload_inc(block, &f->flags);
717503b9
JP		 406 }
407
408 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
409 return -EINVAL;
410
e8eb36cd 411 return 0;
5b33f488
AV		 412}
413
10cbc684
AV		 414static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
415{
de4784ca 416 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 417 struct tcf_block *block = tp->chain->block;
10cbc684 418
ea205940 419 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
de4784ca
JP		 420 cls_flower.command = TC_CLSFLOWER_STATS;
421 cls_flower.cookie = (unsigned long) f;
422 cls_flower.exts = &f->exts;
384c181e 423 cls_flower.classid = f->res.classid;
10cbc684 424
aeb3fecd 425 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
10cbc684
AV		 426}
427
05cd271f 428static bool __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
1b0f8037 429 struct netlink_ext_ack *extack)
13fa876e 430{
c15ab236 431 struct cls_fl_head *head = rtnl_dereference(tp->root);
05cd271f
PB		 432 bool async = tcf_exts_get_net(&f->exts);
433 bool last;
c15ab236 434
9c160941 435 idr_remove(&head->handle_idr, f->handle);
13fa876e 436 list_del_rcu(&f->list);
05cd271f 437 last = fl_mask_put(head, f->mask, async);
79685219 438 if (!tc_skip_hw(f->flags))
1b0f8037 439 fl_hw_destroy_filter(tp, f, extack);
13fa876e 440 tcf_unbind_filter(tp, &f->res);
05cd271f 441 if (async)
aaa908ff 442 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
0dadc117
CW		 443 else
444 __fl_destroy_filter(f);
05cd271f
PB		 445
446 return last;
13fa876e
RD		 447}
448
d9363774
DB		 449static void fl_destroy_sleepable(struct work_struct *work)
450{
aaa908ff
CW		 451 struct cls_fl_head *head = container_of(to_rcu_work(work),
452 struct cls_fl_head,
453 rwork);
de9dc650
PB		 454
455 rhashtable_destroy(&head->ht);
d9363774
DB		 456 kfree(head);
457 module_put(THIS_MODULE);
458}
459
715df5ec 460static void fl_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
77b9900e
JP		 461{
462 struct cls_fl_head *head = rtnl_dereference(tp->root);
05cd271f 463 struct fl_flow_mask *mask, *next_mask;
77b9900e
JP		 464 struct cls_fl_filter *f, *next;
465
05cd271f
PB		 466 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
467 list_for_each_entry_safe(f, next, &mask->filters, list) {
468 if (__fl_delete(tp, f, extack))
469 break;
470 }
471 }
c15ab236 472 idr_destroy(&head->handle_idr);
d9363774
DB		 473
474 __module_get(THIS_MODULE);
aaa908ff 475 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
77b9900e
JP		 476}
477
8113c095 478static void *fl_get(struct tcf_proto *tp, u32 handle)
77b9900e
JP		 479{
480 struct cls_fl_head *head = rtnl_dereference(tp->root);
77b9900e 481
322d884b 482 return idr_find(&head->handle_idr, handle);
77b9900e
JP		 483}
484
485static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
486 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
487 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
488 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
489 .len = IFNAMSIZ },
490 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
491 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
492 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
493 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
494 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
495 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
496 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
497 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
498 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
499 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
500 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
501 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
502 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
503 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
504 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
505 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
b175c3a4
JHS		 506 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
507 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
9399ae9a
HHZ		 508 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
509 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
510 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
bc3103f1
AV		 511 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
512 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
513 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
514 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
515 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
516 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
517 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
518 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
519 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
aa72d708
OG		 520 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
521 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
522 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
523 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
5976c5f4
SH		 524 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
525 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
526 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
527 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
f4d997fd
HHZ		 528 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
529 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
530 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
531 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
faa3ffce
OG		 532 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
533 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
7b684884
SH		 534 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
535 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
536 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
537 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
538 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
539 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
540 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
541 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
99d31326
SH		 542 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
543 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
544 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
545 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
546 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
547 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
548 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
549 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
550 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
551 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
a577d8f7
BL		 552 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
553 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
554 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
555 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
fdfc7dd6
JP		 556 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
557 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
4d80cc0a
OG		 558 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
559 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
560 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
561 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
d64efd09
JL		 562 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
563 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
564 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
0e2c17b6
OG		 565 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
566 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
567 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
568 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
0a6e7778
PJV		 569 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
570 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
571};
572
573static const struct nla_policy
574enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
575 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
576};
577
578static const struct nla_policy
579geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
580 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
581 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
582 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
583 .len = 128 },
77b9900e
JP		 584};
585
586static void fl_set_key_val(struct nlattr **tb,
587 void *val, int val_type,
588 void *mask, int mask_type, int len)
589{
590 if (!tb[val_type])
591 return;
592 memcpy(val, nla_data(tb[val_type]), len);
593 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
594 memset(mask, 0xff, len);
595 else
596 memcpy(mask, nla_data(tb[mask_type]), len);
597}
598
5c72299f
AN		 599static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
600 struct fl_flow_key *mask)
601{
602 fl_set_key_val(tb, &key->tp_min.dst,
603 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_min.dst,
604 TCA_FLOWER_UNSPEC, sizeof(key->tp_min.dst));
605 fl_set_key_val(tb, &key->tp_max.dst,
606 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_max.dst,
607 TCA_FLOWER_UNSPEC, sizeof(key->tp_max.dst));
608 fl_set_key_val(tb, &key->tp_min.src,
609 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_min.src,
610 TCA_FLOWER_UNSPEC, sizeof(key->tp_min.src));
611 fl_set_key_val(tb, &key->tp_max.src,
612 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_max.src,
613 TCA_FLOWER_UNSPEC, sizeof(key->tp_max.src));
614
615 if ((mask->tp_min.dst && mask->tp_max.dst &&
616 htons(key->tp_max.dst) <= htons(key->tp_min.dst)) ||
617 (mask->tp_min.src && mask->tp_max.src &&
618 htons(key->tp_max.src) <= htons(key->tp_min.src)))
619 return -EINVAL;
620
621 return 0;
622}
623
1a7fca63
BL		 624static int fl_set_key_mpls(struct nlattr **tb,
625 struct flow_dissector_key_mpls *key_val,
626 struct flow_dissector_key_mpls *key_mask)
a577d8f7
BL		 627{
628 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
629 key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
630 key_mask->mpls_ttl = MPLS_TTL_MASK;
631 }
632 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
1a7fca63
BL		 633 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
634
635 if (bos & ~MPLS_BOS_MASK)
636 return -EINVAL;
637 key_val->mpls_bos = bos;
a577d8f7
BL		 638 key_mask->mpls_bos = MPLS_BOS_MASK;
639 }
640 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
1a7fca63
BL		 641 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
642
643 if (tc & ~MPLS_TC_MASK)
644 return -EINVAL;
645 key_val->mpls_tc = tc;
a577d8f7
BL		 646 key_mask->mpls_tc = MPLS_TC_MASK;
647 }
648 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
1a7fca63
BL		 649 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
650
651 if (label & ~MPLS_LABEL_MASK)
652 return -EINVAL;
653 key_val->mpls_label = label;
a577d8f7
BL		 654 key_mask->mpls_label = MPLS_LABEL_MASK;
655 }
1a7fca63 656 return 0;
a577d8f7
BL		 657}
658
9399ae9a 659static void fl_set_key_vlan(struct nlattr **tb,
aaab0834 660 __be16 ethertype,
d64efd09 661 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 662 struct flow_dissector_key_vlan *key_val,
663 struct flow_dissector_key_vlan *key_mask)
664{
665#define VLAN_PRIORITY_MASK 0x7
666
d64efd09 667 if (tb[vlan_id_key]) {
9399ae9a 668 key_val->vlan_id =
d64efd09 669 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
9399ae9a
HHZ		 670 key_mask->vlan_id = VLAN_VID_MASK;
671 }
d64efd09 672 if (tb[vlan_prio_key]) {
9399ae9a 673 key_val->vlan_priority =
d64efd09 674 nla_get_u8(tb[vlan_prio_key]) &
9399ae9a
HHZ		 675 VLAN_PRIORITY_MASK;
676 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
677 }
aaab0834
JL		 678 key_val->vlan_tpid = ethertype;
679 key_mask->vlan_tpid = cpu_to_be16(~0);
9399ae9a
HHZ		 680}
681
faa3ffce
OG		 682static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
683 u32 *dissector_key, u32 *dissector_mask,
684 u32 flower_flag_bit, u32 dissector_flag_bit)
685{
686 if (flower_mask & flower_flag_bit) {
687 *dissector_mask |= dissector_flag_bit;
688 if (flower_key & flower_flag_bit)
689 *dissector_key |= dissector_flag_bit;
690 }
691}
692
d9724772
OG		 693static int fl_set_key_flags(struct nlattr **tb,
694 u32 *flags_key, u32 *flags_mask)
faa3ffce
OG		 695{
696 u32 key, mask;
697
d9724772
OG		 698 /* mask is mandatory for flags */
699 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
700 return -EINVAL;
faa3ffce
OG		 701
702 key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
d9724772 703 mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
faa3ffce
OG		 704
705 *flags_key = 0;
706 *flags_mask = 0;
707
708 fl_set_key_flag(key, mask, flags_key, flags_mask,
709 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 710 fl_set_key_flag(key, mask, flags_key, flags_mask,
711 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
712 FLOW_DIS_FIRST_FRAG);
d9724772
OG		 713
714 return 0;
faa3ffce
OG		 715}
716
0e2c17b6 717static void fl_set_key_ip(struct nlattr **tb, bool encap,
4d80cc0a
OG		 718 struct flow_dissector_key_ip *key,
719 struct flow_dissector_key_ip *mask)
720{
0e2c17b6
OG		 721 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
722 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
723 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
724 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
4d80cc0a 725
0e2c17b6
OG		 726 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
727 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
4d80cc0a
OG		 728}
729
0a6e7778
PJV		 730static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
731 int depth, int option_len,
732 struct netlink_ext_ack *extack)
733{
734 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
735 struct nlattr *class = NULL, *type = NULL, *data = NULL;
736 struct geneve_opt *opt;
737 int err, data_len = 0;
738
739 if (option_len > sizeof(struct geneve_opt))
740 data_len = option_len - sizeof(struct geneve_opt);
741
742 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
743 memset(opt, 0xff, option_len);
744 opt->length = data_len / 4;
745 opt->r1 = 0;
746 opt->r2 = 0;
747 opt->r3 = 0;
748
749 /* If no mask has been prodived we assume an exact match. */
750 if (!depth)
751 return sizeof(struct geneve_opt) + data_len;
752
753 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
754 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
755 return -EINVAL;
756 }
757
758 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
759 nla, geneve_opt_policy, extack);
760 if (err < 0)
761 return err;
762
763 /* We are not allowed to omit any of CLASS, TYPE or DATA
764 * fields from the key.
765 */
766 if (!option_len &&
767 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
768 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
769 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
770 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
771 return -EINVAL;
772 }
773
774 /* Omitting any of CLASS, TYPE or DATA fields is allowed
775 * for the mask.
776 */
777 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
778 int new_len = key->enc_opts.len;
779
780 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
781 data_len = nla_len(data);
782 if (data_len < 4) {
783 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
784 return -ERANGE;
785 }
786 if (data_len % 4) {
787 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
788 return -ERANGE;
789 }
790
791 new_len += sizeof(struct geneve_opt) + data_len;
792 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
793 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
794 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
795 return -ERANGE;
796 }
797 opt->length = data_len / 4;
798 memcpy(opt->opt_data, nla_data(data), data_len);
799 }
800
801 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
802 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
803 opt->opt_class = nla_get_be16(class);
804 }
805
806 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
807 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
808 opt->type = nla_get_u8(type);
809 }
810
811 return sizeof(struct geneve_opt) + data_len;
812}
813
814static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
815 struct fl_flow_key *mask,
816 struct netlink_ext_ack *extack)
817{
818 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
63c82997
JK		 819 int err, option_len, key_depth, msk_depth = 0;
820
821 err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS],
822 TCA_FLOWER_KEY_ENC_OPTS_MAX,
823 enc_opts_policy, extack);
824 if (err)
825 return err;
0a6e7778
PJV		 826
827 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
828
829 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
63c82997
JK		 830 err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
831 TCA_FLOWER_KEY_ENC_OPTS_MAX,
832 enc_opts_policy, extack);
833 if (err)
834 return err;
835
0a6e7778
PJV		 836 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
837 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
838 }
839
840 nla_for_each_attr(nla_opt_key, nla_enc_key,
841 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
842 switch (nla_type(nla_opt_key)) {
843 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
844 option_len = 0;
845 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
846 option_len = fl_set_geneve_opt(nla_opt_key, key,
847 key_depth, option_len,
848 extack);
849 if (option_len < 0)
850 return option_len;
851
852 key->enc_opts.len += option_len;
853 /* At the same time we need to parse through the mask
854 * in order to verify exact and mask attribute lengths.
855 */
856 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
857 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
858 msk_depth, option_len,
859 extack);
860 if (option_len < 0)
861 return option_len;
862
863 mask->enc_opts.len += option_len;
864 if (key->enc_opts.len != mask->enc_opts.len) {
865 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
866 return -EINVAL;
867 }
868
869 if (msk_depth)
870 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
871 break;
872 default:
873 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
874 return -EINVAL;
875 }
876 }
877
878 return 0;
879}
880
77b9900e 881static int fl_set_key(struct net *net, struct nlattr **tb,
1057c55f
AA		 882 struct fl_flow_key *key, struct fl_flow_key *mask,
883 struct netlink_ext_ack *extack)
77b9900e 884{
9399ae9a 885 __be16 ethertype;
d9724772 886 int ret = 0;
dd3aa3b5 887#ifdef CONFIG_NET_CLS_IND
77b9900e 888 if (tb[TCA_FLOWER_INDEV]) {
1057c55f 889 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
77b9900e
JP		 890 if (err < 0)
891 return err;
892 key->indev_ifindex = err;
893 mask->indev_ifindex = 0xffffffff;
894 }
dd3aa3b5 895#endif
77b9900e
JP		 896
897 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
898 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
899 sizeof(key->eth.dst));
900 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
901 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
902 sizeof(key->eth.src));
66530bdf 903
0b498a52 904 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
9399ae9a
HHZ		 905 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
906
aaab0834 907 if (eth_type_vlan(ethertype)) {
d64efd09
JL		 908 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
909 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan,
910 &mask->vlan);
911
5e9a0fe4
JL		 912 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
913 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
914 if (eth_type_vlan(ethertype)) {
915 fl_set_key_vlan(tb, ethertype,
916 TCA_FLOWER_KEY_CVLAN_ID,
917 TCA_FLOWER_KEY_CVLAN_PRIO,
918 &key->cvlan, &mask->cvlan);
919 fl_set_key_val(tb, &key->basic.n_proto,
920 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
921 &mask->basic.n_proto,
922 TCA_FLOWER_UNSPEC,
923 sizeof(key->basic.n_proto));
924 } else {
925 key->basic.n_proto = ethertype;
926 mask->basic.n_proto = cpu_to_be16(~0);
927 }
d64efd09 928 }
0b498a52
AB		 929 } else {
930 key->basic.n_proto = ethertype;
931 mask->basic.n_proto = cpu_to_be16(~0);
932 }
9399ae9a 933 }
66530bdf 934
77b9900e
JP		 935 if (key->basic.n_proto == htons(ETH_P_IP) ||
936 key->basic.n_proto == htons(ETH_P_IPV6)) {
937 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
938 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
939 sizeof(key->basic.ip_proto));
0e2c17b6 940 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
77b9900e 941 }
66530bdf
JHS		 942
943 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
944 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 945 mask->control.addr_type = ~0;
77b9900e
JP		 946 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
947 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
948 sizeof(key->ipv4.src));
949 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
950 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
951 sizeof(key->ipv4.dst));
66530bdf
JHS		 952 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
953 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 954 mask->control.addr_type = ~0;
77b9900e
JP		 955 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
956 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
957 sizeof(key->ipv6.src));
958 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
959 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
960 sizeof(key->ipv6.dst));
961 }
66530bdf 962
77b9900e
JP		 963 if (key->basic.ip_proto == IPPROTO_TCP) {
964 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 965 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 966 sizeof(key->tp.src));
967 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 968 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
77b9900e 969 sizeof(key->tp.dst));
fdfc7dd6
JP		 970 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
971 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
972 sizeof(key->tcp.flags));
77b9900e
JP		 973 } else if (key->basic.ip_proto == IPPROTO_UDP) {
974 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 975 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 976 sizeof(key->tp.src));
977 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 978 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
77b9900e 979 sizeof(key->tp.dst));
5976c5f4
SH		 980 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
981 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
982 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
983 sizeof(key->tp.src));
984 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
985 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
986 sizeof(key->tp.dst));
7b684884
SH		 987 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
988 key->basic.ip_proto == IPPROTO_ICMP) {
989 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
990 &mask->icmp.type,
991 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
992 sizeof(key->icmp.type));
993 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
994 &mask->icmp.code,
995 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
996 sizeof(key->icmp.code));
997 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
998 key->basic.ip_proto == IPPROTO_ICMPV6) {
999 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1000 &mask->icmp.type,
1001 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1002 sizeof(key->icmp.type));
040587af 1003 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
7b684884 1004 &mask->icmp.code,
040587af 1005 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
7b684884 1006 sizeof(key->icmp.code));
a577d8f7
BL		 1007 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1008 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
1a7fca63
BL		 1009 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls);
1010 if (ret)
1011 return ret;
99d31326
SH		 1012 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1013 key->basic.n_proto == htons(ETH_P_RARP)) {
1014 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1015 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1016 sizeof(key->arp.sip));
1017 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1018 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1019 sizeof(key->arp.tip));
1020 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1021 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1022 sizeof(key->arp.op));
1023 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1024 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1025 sizeof(key->arp.sha));
1026 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1027 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1028 sizeof(key->arp.tha));
77b9900e
JP		 1029 }
1030
5c72299f
AN		 1031 if (key->basic.ip_proto == IPPROTO_TCP ||
1032 key->basic.ip_proto == IPPROTO_UDP ||
1033 key->basic.ip_proto == IPPROTO_SCTP) {
1034 ret = fl_set_key_port_range(tb, key, mask);
1035 if (ret)
1036 return ret;
1037 }
1038
bc3103f1
AV		 1039 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1040 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1041 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1042 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1043 fl_set_key_val(tb, &key->enc_ipv4.src,
1044 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1045 &mask->enc_ipv4.src,
1046 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1047 sizeof(key->enc_ipv4.src));
1048 fl_set_key_val(tb, &key->enc_ipv4.dst,
1049 TCA_FLOWER_KEY_ENC_IPV4_DST,
1050 &mask->enc_ipv4.dst,
1051 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1052 sizeof(key->enc_ipv4.dst));
1053 }
1054
1055 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1056 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1057 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1058 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1059 fl_set_key_val(tb, &key->enc_ipv6.src,
1060 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1061 &mask->enc_ipv6.src,
1062 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1063 sizeof(key->enc_ipv6.src));
1064 fl_set_key_val(tb, &key->enc_ipv6.dst,
1065 TCA_FLOWER_KEY_ENC_IPV6_DST,
1066 &mask->enc_ipv6.dst,
1067 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1068 sizeof(key->enc_ipv6.dst));
1069 }
1070
1071 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1072 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
bc3103f1
AV		 1073 sizeof(key->enc_key_id.keyid));
1074
f4d997fd
HHZ		 1075 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1076 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1077 sizeof(key->enc_tp.src));
1078
1079 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1080 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1081 sizeof(key->enc_tp.dst));
1082
0e2c17b6
OG		 1083 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1084
0a6e7778
PJV		 1085 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1086 ret = fl_set_enc_opt(tb, key, mask, extack);
1087 if (ret)
1088 return ret;
1089 }
1090
d9724772
OG		 1091 if (tb[TCA_FLOWER_KEY_FLAGS])
1092 ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
faa3ffce 1093
d9724772 1094 return ret;
77b9900e
JP		 1095}
1096
05cd271f
PB		 1097static void fl_mask_copy(struct fl_flow_mask *dst,
1098 struct fl_flow_mask *src)
77b9900e 1099{
05cd271f
PB		 1100 const void *psrc = fl_key_get_start(&src->key, src);
1101 void *pdst = fl_key_get_start(&dst->key, src);
77b9900e 1102
05cd271f
PB		 1103 memcpy(pdst, psrc, fl_mask_range(src));
1104 dst->range = src->range;
77b9900e
JP		 1105}
1106
1107static const struct rhashtable_params fl_ht_params = {
1108 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1109 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1110 .automatic_shrinking = true,
1111};
1112
05cd271f 1113static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
77b9900e 1114{
05cd271f
PB		 1115 mask->filter_ht_params = fl_ht_params;
1116 mask->filter_ht_params.key_len = fl_mask_range(mask);
1117 mask->filter_ht_params.key_offset += mask->range.start;
77b9900e 1118
05cd271f 1119 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
77b9900e
JP		 1120}
1121
1122#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
cb205a81 1123#define FL_KEY_MEMBER_SIZE(member) FIELD_SIZEOF(struct fl_flow_key, member)
77b9900e 1124
339ba878
HHZ		 1125#define FL_KEY_IS_MASKED(mask, member) \
1126 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1127 0, FL_KEY_MEMBER_SIZE(member)) \
77b9900e
JP		 1128
1129#define FL_KEY_SET(keys, cnt, id, member) \
1130 do { \
1131 keys[cnt].key_id = id; \
1132 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1133 cnt++; \
1134 } while(0);
1135
339ba878 1136#define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
77b9900e 1137 do { \
339ba878 1138 if (FL_KEY_IS_MASKED(mask, member)) \
77b9900e
JP		 1139 FL_KEY_SET(keys, cnt, id, member); \
1140 } while(0);
1141
33fb5cba
JP		 1142static void fl_init_dissector(struct flow_dissector *dissector,
1143 struct fl_flow_key *mask)
77b9900e
JP		 1144{
1145 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1146 size_t cnt = 0;
1147
42aecaa9 1148 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
77b9900e 1149 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
33fb5cba 1150 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1151 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
33fb5cba 1152 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1153 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
33fb5cba 1154 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1155 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
5c72299f
AN		 1156 if (FL_KEY_IS_MASKED(mask, tp) ||
1157 FL_KEY_IS_MASKED(mask, tp_min) || FL_KEY_IS_MASKED(mask, tp_max))
1158 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_PORTS, tp);
33fb5cba 1159 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
4d80cc0a 1160 FLOW_DISSECTOR_KEY_IP, ip);
33fb5cba 1161 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
fdfc7dd6 1162 FLOW_DISSECTOR_KEY_TCP, tcp);
33fb5cba 1163 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
7b684884 1164 FLOW_DISSECTOR_KEY_ICMP, icmp);
33fb5cba 1165 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
99d31326 1166 FLOW_DISSECTOR_KEY_ARP, arp);
33fb5cba 1167 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
a577d8f7 1168 FLOW_DISSECTOR_KEY_MPLS, mpls);
33fb5cba 1169 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
9399ae9a 1170 FLOW_DISSECTOR_KEY_VLAN, vlan);
33fb5cba 1171 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
d64efd09 1172 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
33fb5cba 1173 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1174 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
33fb5cba 1175 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1176 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
33fb5cba 1177 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1178 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
33fb5cba
JP		 1179 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1180 FL_KEY_IS_MASKED(mask, enc_ipv6))
519d1052
HHZ		 1181 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1182 enc_control);
33fb5cba 1183 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
f4d997fd 1184 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
33fb5cba 1185 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
0e2c17b6 1186 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
0a6e7778
PJV		 1187 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1188 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
77b9900e 1189
33fb5cba 1190 skb_flow_dissector_init(dissector, keys, cnt);
05cd271f
PB		 1191}
1192
1193static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1194 struct fl_flow_mask *mask)
1195{
1196 struct fl_flow_mask *newmask;
1197 int err;
1198
1199 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1200 if (!newmask)
1201 return ERR_PTR(-ENOMEM);
1202
1203 fl_mask_copy(newmask, mask);
1204
5c72299f
AN		 1205 if ((newmask->key.tp_min.dst && newmask->key.tp_max.dst) ||
1206 (newmask->key.tp_min.src && newmask->key.tp_max.src))
1207 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
1208
05cd271f
PB		 1209 err = fl_init_mask_hashtable(newmask);
1210 if (err)
1211 goto errout_free;
1212
33fb5cba 1213 fl_init_dissector(&newmask->dissector, &newmask->key);
05cd271f
PB		 1214
1215 INIT_LIST_HEAD_RCU(&newmask->filters);
1216
1217 err = rhashtable_insert_fast(&head->ht, &newmask->ht_node,
1218 mask_ht_params);
1219 if (err)
1220 goto errout_destroy;
1221
1222 list_add_tail_rcu(&newmask->list, &head->masks);
1223
1224 return newmask;
1225
1226errout_destroy:
1227 rhashtable_destroy(&newmask->ht);
1228errout_free:
1229 kfree(newmask);
1230
1231 return ERR_PTR(err);
77b9900e
JP		 1232}
1233
1234static int fl_check_assign_mask(struct cls_fl_head *head,
05cd271f
PB		 1235 struct cls_fl_filter *fnew,
1236 struct cls_fl_filter *fold,
77b9900e
JP		 1237 struct fl_flow_mask *mask)
1238{
05cd271f 1239 struct fl_flow_mask *newmask;
77b9900e 1240
05cd271f
PB		 1241 fnew->mask = rhashtable_lookup_fast(&head->ht, mask, mask_ht_params);
1242 if (!fnew->mask) {
1243 if (fold)
77b9900e 1244 return -EINVAL;
77b9900e 1245
05cd271f
PB		 1246 newmask = fl_create_new_mask(head, mask);
1247 if (IS_ERR(newmask))
1248 return PTR_ERR(newmask);
77b9900e 1249
05cd271f 1250 fnew->mask = newmask;
f6521c58 1251 } else if (fold && fold->mask != fnew->mask) {
05cd271f
PB		 1252 return -EINVAL;
1253 }
77b9900e
JP		 1254
1255 return 0;
1256}
1257
1258static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1259 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1260 unsigned long base, struct nlattr **tb,
50a56190 1261 struct nlattr *est, bool ovr,
b95ec7eb 1262 struct fl_flow_tmplt *tmplt,
50a56190 1263 struct netlink_ext_ack *extack)
77b9900e 1264{
77b9900e
JP		 1265 int err;
1266
50a56190 1267 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, extack);
77b9900e
JP		 1268 if (err < 0)
1269 return err;
1270
1271 if (tb[TCA_FLOWER_CLASSID]) {
1272 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
1273 tcf_bind_filter(tp, &f->res, base);
1274 }
1275
1057c55f 1276 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
77b9900e 1277 if (err)
45507529 1278 return err;
77b9900e
JP		 1279
1280 fl_mask_update_range(mask);
1281 fl_set_masked_key(&f->mkey, &f->key, mask);
1282
b95ec7eb
JP		 1283 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1284 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1285 return -EINVAL;
1286 }
1287
77b9900e 1288 return 0;
77b9900e
JP		 1289}
1290
77b9900e
JP		 1291static int fl_change(struct net *net, struct sk_buff *in_skb,
1292 struct tcf_proto *tp, unsigned long base,
1293 u32 handle, struct nlattr **tca,
7306db38 1294 void **arg, bool ovr, struct netlink_ext_ack *extack)
77b9900e
JP		 1295{
1296 struct cls_fl_head *head = rtnl_dereference(tp->root);
8113c095 1297 struct cls_fl_filter *fold = *arg;
77b9900e 1298 struct cls_fl_filter *fnew;
2cddd201 1299 struct fl_flow_mask *mask;
39b7b6a6 1300 struct nlattr **tb;
77b9900e
JP		 1301 int err;
1302
1303 if (!tca[TCA_OPTIONS])
1304 return -EINVAL;
1305
2cddd201
IV		 1306 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
1307 if (!mask)
39b7b6a6
AB		 1308 return -ENOBUFS;
1309
2cddd201
IV		 1310 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1311 if (!tb) {
1312 err = -ENOBUFS;
1313 goto errout_mask_alloc;
1314 }
1315
fceb6435
JB		 1316 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
1317 fl_policy, NULL);
77b9900e 1318 if (err < 0)
39b7b6a6 1319 goto errout_tb;
77b9900e 1320
39b7b6a6
AB		 1321 if (fold && handle && fold->handle != handle) {
1322 err = -EINVAL;
1323 goto errout_tb;
1324 }
77b9900e
JP		 1325
1326 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
39b7b6a6
AB		 1327 if (!fnew) {
1328 err = -ENOBUFS;
1329 goto errout_tb;
1330 }
77b9900e 1331
b9a24bb7
WC		 1332 err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0);
1333 if (err < 0)
1334 goto errout;
77b9900e
JP		 1335
1336 if (!handle) {
85bd0438
MW		 1337 handle = 1;
1338 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1339 INT_MAX, GFP_KERNEL);
1340 } else if (!fold) {
1341 /* user specifies a handle and it doesn't exist */
1342 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1343 handle, GFP_KERNEL);
77b9900e 1344 }
85bd0438
MW		 1345 if (err)
1346 goto errout;
1347 fnew->handle = handle;
77b9900e 1348
e69985c6
AV		 1349 if (tb[TCA_FLOWER_FLAGS]) {
1350 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
1351
1352 if (!tc_flags_valid(fnew->flags)) {
1353 err = -EINVAL;
fe2502e4 1354 goto errout_idr;
e69985c6
AV		 1355 }
1356 }
5b33f488 1357
2cddd201 1358 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
b95ec7eb 1359 tp->chain->tmplt_priv, extack);
77b9900e 1360 if (err)
fe2502e4 1361 goto errout_idr;
77b9900e 1362
2cddd201 1363 err = fl_check_assign_mask(head, fnew, fold, mask);
77b9900e 1364 if (err)
fe2502e4 1365 goto errout_idr;
77b9900e 1366
4cc1feeb 1367 if (!fold && __fl_lookup(fnew->mask, &fnew->mkey)) {
35cc3cef
OG		 1368 err = -EEXIST;
1369 goto errout_mask;
e69985c6 1370 }
5b33f488 1371
35cc3cef
OG		 1372 err = rhashtable_insert_fast(&fnew->mask->ht, &fnew->ht_node,
1373 fnew->mask->filter_ht_params);
1374 if (err)
1375 goto errout_mask;
1376
79685219 1377 if (!tc_skip_hw(fnew->flags)) {
05cd271f 1378 err = fl_hw_replace_filter(tp, fnew, extack);
79685219 1379 if (err)
05cd271f 1380 goto errout_mask;
79685219 1381 }
5b33f488 1382
55593960
OG		 1383 if (!tc_in_hw(fnew->flags))
1384 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
1385
5b33f488 1386 if (fold) {
599d2570
RD		 1387 rhashtable_remove_fast(&fold->mask->ht,
1388 &fold->ht_node,
1389 fold->mask->filter_ht_params);
79685219 1390 if (!tc_skip_hw(fold->flags))
1b0f8037 1391 fl_hw_destroy_filter(tp, fold, NULL);
5b33f488 1392 }
77b9900e 1393
8113c095 1394 *arg = fnew;
77b9900e
JP		 1395
1396 if (fold) {
234a4624 1397 idr_replace(&head->handle_idr, fnew, fnew->handle);
ff3532f2 1398 list_replace_rcu(&fold->list, &fnew->list);
77b9900e 1399 tcf_unbind_filter(tp, &fold->res);
0dadc117 1400 tcf_exts_get_net(&fold->exts);
aaa908ff 1401 tcf_queue_work(&fold->rwork, fl_destroy_filter_work);
77b9900e 1402 } else {
05cd271f 1403 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
77b9900e
JP		 1404 }
1405
39b7b6a6 1406 kfree(tb);
2cddd201 1407 kfree(mask);
77b9900e
JP		 1408 return 0;
1409
05cd271f
PB		 1410errout_mask:
1411 fl_mask_put(head, fnew->mask, false);
1412
fe2502e4 1413errout_idr:
8258d2da 1414 if (!fold)
9c160941 1415 idr_remove(&head->handle_idr, fnew->handle);
77b9900e 1416errout:
b9a24bb7 1417 tcf_exts_destroy(&fnew->exts);
77b9900e 1418 kfree(fnew);
39b7b6a6
AB		 1419errout_tb:
1420 kfree(tb);
2cddd201
IV		 1421errout_mask_alloc:
1422 kfree(mask);
77b9900e
JP		 1423 return err;
1424}
1425
571acf21
AA		 1426static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
1427 struct netlink_ext_ack *extack)
77b9900e
JP		 1428{
1429 struct cls_fl_head *head = rtnl_dereference(tp->root);
8113c095 1430 struct cls_fl_filter *f = arg;
77b9900e 1431
35cc3cef
OG		 1432 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
1433 f->mask->filter_ht_params);
1b0f8037 1434 __fl_delete(tp, f, extack);
05cd271f 1435 *last = list_empty(&head->masks);
77b9900e
JP		 1436 return 0;
1437}
1438
1439static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg)
1440{
1441 struct cls_fl_head *head = rtnl_dereference(tp->root);
1442 struct cls_fl_filter *f;
05cd271f 1443
01683a14
VB		 1444 arg->count = arg->skip;
1445
1446 while ((f = idr_get_next_ul(&head->handle_idr,
1447 &arg->cookie)) != NULL) {
1448 if (arg->fn(tp, f, arg) < 0) {
1449 arg->stop = 1;
1450 break;
05cd271f 1451 }
01683a14
VB		 1452 arg->cookie = f->handle + 1;
1453 arg->count++;
77b9900e
JP		 1454 }
1455}
1456
31533cba
JH		 1457static int fl_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
1458 void *cb_priv, struct netlink_ext_ack *extack)
1459{
1460 struct cls_fl_head *head = rtnl_dereference(tp->root);
1461 struct tc_cls_flower_offload cls_flower = {};
1462 struct tcf_block *block = tp->chain->block;
1463 struct fl_flow_mask *mask;
1464 struct cls_fl_filter *f;
1465 int err;
1466
1467 list_for_each_entry(mask, &head->masks, list) {
1468 list_for_each_entry(f, &mask->filters, list) {
1469 if (tc_skip_hw(f->flags))
1470 continue;
1471
e3ab786b
PNA		 1472 cls_flower.rule =
1473 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
8f256622
PNA		 1474 if (!cls_flower.rule)
1475 return -ENOMEM;
1476
31533cba
JH		 1477 tc_cls_common_offload_init(&cls_flower.common, tp,
1478 f->flags, extack);
1479 cls_flower.command = add ?
1480 TC_CLSFLOWER_REPLACE : TC_CLSFLOWER_DESTROY;
1481 cls_flower.cookie = (unsigned long)f;
8f256622
PNA		 1482 cls_flower.rule->match.dissector = &mask->dissector;
1483 cls_flower.rule->match.mask = &mask->key;
1484 cls_flower.rule->match.key = &f->mkey;
31533cba
JH		 1485 cls_flower.exts = &f->exts;
1486 cls_flower.classid = f->res.classid;
1487
1488 err = cb(TC_SETUP_CLSFLOWER, &cls_flower, cb_priv);
8f256622
PNA		 1489 kfree(cls_flower.rule);
1490
31533cba
JH		 1491 if (err) {
1492 if (add && tc_skip_sw(f->flags))
1493 return err;
1494 continue;
1495 }
1496
1497 tc_cls_offload_cnt_update(block, &f->in_hw_count,
1498 &f->flags, add);
1499 }
1500 }
1501
1502 return 0;
1503}
1504
8f256622
PNA		 1505static int fl_hw_create_tmplt(struct tcf_chain *chain,
1506 struct fl_flow_tmplt *tmplt)
34738452
JP		 1507{
1508 struct tc_cls_flower_offload cls_flower = {};
1509 struct tcf_block *block = chain->block;
1510 struct tcf_exts dummy_exts = { 0, };
1511
e3ab786b 1512 cls_flower.rule = flow_rule_alloc(0);
8f256622
PNA		 1513 if (!cls_flower.rule)
1514 return -ENOMEM;
1515
34738452
JP		 1516 cls_flower.common.chain_index = chain->index;
1517 cls_flower.command = TC_CLSFLOWER_TMPLT_CREATE;
1518 cls_flower.cookie = (unsigned long) tmplt;
8f256622
PNA		 1519 cls_flower.rule->match.dissector = &tmplt->dissector;
1520 cls_flower.rule->match.mask = &tmplt->mask;
1521 cls_flower.rule->match.key = &tmplt->dummy_key;
34738452
JP		 1522 cls_flower.exts = &dummy_exts;
1523
1524 /* We don't care if driver (any of them) fails to handle this
1525 * call. It serves just as a hint for it.
1526 */
aeb3fecd 1527 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
8f256622
PNA		 1528 kfree(cls_flower.rule);
1529
1530 return 0;
34738452
JP		 1531}
1532
1533static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
1534 struct fl_flow_tmplt *tmplt)
1535{
1536 struct tc_cls_flower_offload cls_flower = {};
1537 struct tcf_block *block = chain->block;
1538
1539 cls_flower.common.chain_index = chain->index;
1540 cls_flower.command = TC_CLSFLOWER_TMPLT_DESTROY;
1541 cls_flower.cookie = (unsigned long) tmplt;
1542
aeb3fecd 1543 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
34738452
JP		 1544}
1545
b95ec7eb
JP		 1546static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
1547 struct nlattr **tca,
1548 struct netlink_ext_ack *extack)
1549{
1550 struct fl_flow_tmplt *tmplt;
1551 struct nlattr **tb;
1552 int err;
1553
1554 if (!tca[TCA_OPTIONS])
1555 return ERR_PTR(-EINVAL);
1556
1557 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1558 if (!tb)
1559 return ERR_PTR(-ENOBUFS);
1560 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
1561 fl_policy, NULL);
1562 if (err)
1563 goto errout_tb;
1564
1565 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
1cbc36a5
DC		 1566 if (!tmplt) {
1567 err = -ENOMEM;
b95ec7eb 1568 goto errout_tb;
1cbc36a5 1569 }
b95ec7eb
JP		 1570 tmplt->chain = chain;
1571 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
1572 if (err)
1573 goto errout_tmplt;
b95ec7eb
JP		 1574
1575 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
1576
8f256622
PNA		 1577 err = fl_hw_create_tmplt(chain, tmplt);
1578 if (err)
1579 goto errout_tmplt;
34738452 1580
8f256622 1581 kfree(tb);
b95ec7eb
JP		 1582 return tmplt;
1583
1584errout_tmplt:
1585 kfree(tmplt);
1586errout_tb:
1587 kfree(tb);
1588 return ERR_PTR(err);
1589}
1590
ec3ed293
VB		 1591static void fl_tmplt_destroy(void *tmplt_priv)
1592{
1593 struct fl_flow_tmplt *tmplt = tmplt_priv;
1594
95278dda
CW		 1595 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
1596 kfree(tmplt);
ec3ed293
VB		 1597}
1598
77b9900e
JP		 1599static int fl_dump_key_val(struct sk_buff *skb,
1600 void *val, int val_type,
1601 void *mask, int mask_type, int len)
1602{
1603 int err;
1604
1605 if (!memchr_inv(mask, 0, len))
1606 return 0;
1607 err = nla_put(skb, val_type, len, val);
1608 if (err)
1609 return err;
1610 if (mask_type != TCA_FLOWER_UNSPEC) {
1611 err = nla_put(skb, mask_type, len, mask);
1612 if (err)
1613 return err;
1614 }
1615 return 0;
1616}
1617
5c72299f
AN		 1618static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
1619 struct fl_flow_key *mask)
1620{
1621 if (fl_dump_key_val(skb, &key->tp_min.dst, TCA_FLOWER_KEY_PORT_DST_MIN,
1622 &mask->tp_min.dst, TCA_FLOWER_UNSPEC,
1623 sizeof(key->tp_min.dst)) ||
1624 fl_dump_key_val(skb, &key->tp_max.dst, TCA_FLOWER_KEY_PORT_DST_MAX,
1625 &mask->tp_max.dst, TCA_FLOWER_UNSPEC,
1626 sizeof(key->tp_max.dst)) ||
1627 fl_dump_key_val(skb, &key->tp_min.src, TCA_FLOWER_KEY_PORT_SRC_MIN,
1628 &mask->tp_min.src, TCA_FLOWER_UNSPEC,
1629 sizeof(key->tp_min.src)) ||
1630 fl_dump_key_val(skb, &key->tp_max.src, TCA_FLOWER_KEY_PORT_SRC_MAX,
1631 &mask->tp_max.src, TCA_FLOWER_UNSPEC,
1632 sizeof(key->tp_max.src)))
1633 return -1;
1634
1635 return 0;
1636}
1637
a577d8f7
BL		 1638static int fl_dump_key_mpls(struct sk_buff *skb,
1639 struct flow_dissector_key_mpls *mpls_key,
1640 struct flow_dissector_key_mpls *mpls_mask)
1641{
1642 int err;
1643
1644 if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask)))
1645 return 0;
1646 if (mpls_mask->mpls_ttl) {
1647 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
1648 mpls_key->mpls_ttl);
1649 if (err)
1650 return err;
1651 }
1652 if (mpls_mask->mpls_tc) {
1653 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
1654 mpls_key->mpls_tc);
1655 if (err)
1656 return err;
1657 }
1658 if (mpls_mask->mpls_label) {
1659 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
1660 mpls_key->mpls_label);
1661 if (err)
1662 return err;
1663 }
1664 if (mpls_mask->mpls_bos) {
1665 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
1666 mpls_key->mpls_bos);
1667 if (err)
1668 return err;
1669 }
1670 return 0;
1671}
1672
0e2c17b6 1673static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
4d80cc0a
OG		 1674 struct flow_dissector_key_ip *key,
1675 struct flow_dissector_key_ip *mask)
1676{
0e2c17b6
OG		 1677 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1678 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1679 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1680 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
1681
1682 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
1683 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
4d80cc0a
OG		 1684 return -1;
1685
1686 return 0;
1687}
1688
9399ae9a 1689static int fl_dump_key_vlan(struct sk_buff *skb,
d64efd09 1690 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 1691 struct flow_dissector_key_vlan *vlan_key,
1692 struct flow_dissector_key_vlan *vlan_mask)
1693{
1694 int err;
1695
1696 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
1697 return 0;
1698 if (vlan_mask->vlan_id) {
d64efd09 1699 err = nla_put_u16(skb, vlan_id_key,
9399ae9a
HHZ		 1700 vlan_key->vlan_id);
1701 if (err)
1702 return err;
1703 }
1704 if (vlan_mask->vlan_priority) {
d64efd09 1705 err = nla_put_u8(skb, vlan_prio_key,
9399ae9a
HHZ		 1706 vlan_key->vlan_priority);
1707 if (err)
1708 return err;
1709 }
1710 return 0;
1711}
1712
faa3ffce
OG		 1713static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
1714 u32 *flower_key, u32 *flower_mask,
1715 u32 flower_flag_bit, u32 dissector_flag_bit)
1716{
1717 if (dissector_mask & dissector_flag_bit) {
1718 *flower_mask |= flower_flag_bit;
1719 if (dissector_key & dissector_flag_bit)
1720 *flower_key |= flower_flag_bit;
1721 }
1722}
1723
1724static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
1725{
1726 u32 key, mask;
1727 __be32 _key, _mask;
1728 int err;
1729
1730 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
1731 return 0;
1732
1733 key = 0;
1734 mask = 0;
1735
1736 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1737 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 1738 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1739 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1740 FLOW_DIS_FIRST_FRAG);
faa3ffce
OG		 1741
1742 _key = cpu_to_be32(key);
1743 _mask = cpu_to_be32(mask);
1744
1745 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
1746 if (err)
1747 return err;
1748
1749 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
1750}
1751
0a6e7778
PJV		 1752static int fl_dump_key_geneve_opt(struct sk_buff *skb,
1753 struct flow_dissector_key_enc_opts *enc_opts)
1754{
1755 struct geneve_opt *opt;
1756 struct nlattr *nest;
1757 int opt_off = 0;
1758
1759 nest = nla_nest_start(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
1760 if (!nest)
1761 goto nla_put_failure;
1762
1763 while (enc_opts->len > opt_off) {
1764 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
1765
1766 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
1767 opt->opt_class))
1768 goto nla_put_failure;
1769 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
1770 opt->type))
1771 goto nla_put_failure;
1772 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
1773 opt->length * 4, opt->opt_data))
1774 goto nla_put_failure;
1775
1776 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
1777 }
1778 nla_nest_end(skb, nest);
1779 return 0;
1780
1781nla_put_failure:
1782 nla_nest_cancel(skb, nest);
1783 return -EMSGSIZE;
1784}
1785
1786static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
1787 struct flow_dissector_key_enc_opts *enc_opts)
1788{
1789 struct nlattr *nest;
1790 int err;
1791
1792 if (!enc_opts->len)
1793 return 0;
1794
1795 nest = nla_nest_start(skb, enc_opt_type);
1796 if (!nest)
1797 goto nla_put_failure;
1798
1799 switch (enc_opts->dst_opt_type) {
1800 case TUNNEL_GENEVE_OPT:
1801 err = fl_dump_key_geneve_opt(skb, enc_opts);
1802 if (err)
1803 goto nla_put_failure;
1804 break;
1805 default:
1806 goto nla_put_failure;
1807 }
1808 nla_nest_end(skb, nest);
1809 return 0;
1810
1811nla_put_failure:
1812 nla_nest_cancel(skb, nest);
1813 return -EMSGSIZE;
1814}
1815
1816static int fl_dump_key_enc_opt(struct sk_buff *skb,
1817 struct flow_dissector_key_enc_opts *key_opts,
1818 struct flow_dissector_key_enc_opts *msk_opts)
1819{
1820 int err;
1821
1822 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
1823 if (err)
1824 return err;
1825
1826 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
1827}
1828
f5749081
JP		 1829static int fl_dump_key(struct sk_buff *skb, struct net *net,
1830 struct fl_flow_key *key, struct fl_flow_key *mask)
77b9900e 1831{
77b9900e
JP		 1832 if (mask->indev_ifindex) {
1833 struct net_device *dev;
1834
1835 dev = __dev_get_by_index(net, key->indev_ifindex);
1836 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
1837 goto nla_put_failure;
1838 }
1839
1840 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1841 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1842 sizeof(key->eth.dst)) ||
1843 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1844 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1845 sizeof(key->eth.src)) ||
1846 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
1847 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
1848 sizeof(key->basic.n_proto)))
1849 goto nla_put_failure;
9399ae9a 1850
a577d8f7
BL		 1851 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
1852 goto nla_put_failure;
1853
d64efd09
JL		 1854 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
1855 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
9399ae9a
HHZ		 1856 goto nla_put_failure;
1857
d64efd09
JL		 1858 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
1859 TCA_FLOWER_KEY_CVLAN_PRIO,
1860 &key->cvlan, &mask->cvlan) ||
1861 (mask->cvlan.vlan_tpid &&
158abbf1
JL		 1862 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1863 key->cvlan.vlan_tpid)))
d3069512
JL		 1864 goto nla_put_failure;
1865
5e9a0fe4
JL		 1866 if (mask->basic.n_proto) {
1867 if (mask->cvlan.vlan_tpid) {
1868 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1869 key->basic.n_proto))
1870 goto nla_put_failure;
1871 } else if (mask->vlan.vlan_tpid) {
1872 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1873 key->basic.n_proto))
1874 goto nla_put_failure;
1875 }
d64efd09
JL		 1876 }
1877
77b9900e
JP		 1878 if ((key->basic.n_proto == htons(ETH_P_IP) ||
1879 key->basic.n_proto == htons(ETH_P_IPV6)) &&
4d80cc0a 1880 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
77b9900e 1881 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
4d80cc0a 1882 sizeof(key->basic.ip_proto)) ||
0e2c17b6 1883 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
77b9900e
JP		 1884 goto nla_put_failure;
1885
c3f83241 1886 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
77b9900e
JP		 1887 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1888 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1889 sizeof(key->ipv4.src)) ||
1890 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1891 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1892 sizeof(key->ipv4.dst))))
1893 goto nla_put_failure;
c3f83241 1894 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
77b9900e
JP		 1895 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1896 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1897 sizeof(key->ipv6.src)) ||
1898 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1899 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1900 sizeof(key->ipv6.dst))))
1901 goto nla_put_failure;
1902
1903 if (key->basic.ip_proto == IPPROTO_TCP &&
1904 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 1905 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 1906 sizeof(key->tp.src)) ||
1907 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 1908 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
fdfc7dd6
JP		 1909 sizeof(key->tp.dst)) ||
1910 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1911 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1912 sizeof(key->tcp.flags))))
77b9900e
JP		 1913 goto nla_put_failure;
1914 else if (key->basic.ip_proto == IPPROTO_UDP &&
1915 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 1916 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 1917 sizeof(key->tp.src)) ||
1918 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 1919 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
5976c5f4
SH		 1920 sizeof(key->tp.dst))))
1921 goto nla_put_failure;
1922 else if (key->basic.ip_proto == IPPROTO_SCTP &&
1923 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1924 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1925 sizeof(key->tp.src)) ||
1926 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1927 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
77b9900e
JP		 1928 sizeof(key->tp.dst))))
1929 goto nla_put_failure;
7b684884
SH		 1930 else if (key->basic.n_proto == htons(ETH_P_IP) &&
1931 key->basic.ip_proto == IPPROTO_ICMP &&
1932 (fl_dump_key_val(skb, &key->icmp.type,
1933 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
1934 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1935 sizeof(key->icmp.type)) ||
1936 fl_dump_key_val(skb, &key->icmp.code,
1937 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
1938 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1939 sizeof(key->icmp.code))))
1940 goto nla_put_failure;
1941 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1942 key->basic.ip_proto == IPPROTO_ICMPV6 &&
1943 (fl_dump_key_val(skb, &key->icmp.type,
1944 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
1945 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1946 sizeof(key->icmp.type)) ||
1947 fl_dump_key_val(skb, &key->icmp.code,
1948 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
1949 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1950 sizeof(key->icmp.code))))
1951 goto nla_put_failure;
99d31326
SH		 1952 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
1953 key->basic.n_proto == htons(ETH_P_RARP)) &&
1954 (fl_dump_key_val(skb, &key->arp.sip,
1955 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
1956 TCA_FLOWER_KEY_ARP_SIP_MASK,
1957 sizeof(key->arp.sip)) ||
1958 fl_dump_key_val(skb, &key->arp.tip,
1959 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
1960 TCA_FLOWER_KEY_ARP_TIP_MASK,
1961 sizeof(key->arp.tip)) ||
1962 fl_dump_key_val(skb, &key->arp.op,
1963 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
1964 TCA_FLOWER_KEY_ARP_OP_MASK,
1965 sizeof(key->arp.op)) ||
1966 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1967 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1968 sizeof(key->arp.sha)) ||
1969 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1970 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1971 sizeof(key->arp.tha))))
1972 goto nla_put_failure;
77b9900e 1973
5c72299f
AN		 1974 if ((key->basic.ip_proto == IPPROTO_TCP ||
1975 key->basic.ip_proto == IPPROTO_UDP ||
1976 key->basic.ip_proto == IPPROTO_SCTP) &&
1977 fl_dump_key_port_range(skb, key, mask))
1978 goto nla_put_failure;
1979
bc3103f1
AV		 1980 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
1981 (fl_dump_key_val(skb, &key->enc_ipv4.src,
1982 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
1983 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1984 sizeof(key->enc_ipv4.src)) ||
1985 fl_dump_key_val(skb, &key->enc_ipv4.dst,
1986 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
1987 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1988 sizeof(key->enc_ipv4.dst))))
1989 goto nla_put_failure;
1990 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
1991 (fl_dump_key_val(skb, &key->enc_ipv6.src,
1992 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
1993 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1994 sizeof(key->enc_ipv6.src)) ||
1995 fl_dump_key_val(skb, &key->enc_ipv6.dst,
1996 TCA_FLOWER_KEY_ENC_IPV6_DST,
1997 &mask->enc_ipv6.dst,
1998 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1999 sizeof(key->enc_ipv6.dst))))
2000 goto nla_put_failure;
2001
2002 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 2003 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
f4d997fd
HHZ		 2004 sizeof(key->enc_key_id)) ||
2005 fl_dump_key_val(skb, &key->enc_tp.src,
2006 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
2007 &mask->enc_tp.src,
2008 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
2009 sizeof(key->enc_tp.src)) ||
2010 fl_dump_key_val(skb, &key->enc_tp.dst,
2011 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
2012 &mask->enc_tp.dst,
2013 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
0e2c17b6 2014 sizeof(key->enc_tp.dst)) ||
0a6e7778
PJV		 2015 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
2016 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
bc3103f1
AV		 2017 goto nla_put_failure;
2018
faa3ffce
OG		 2019 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
2020 goto nla_put_failure;
2021
f5749081
JP		 2022 return 0;
2023
2024nla_put_failure:
2025 return -EMSGSIZE;
2026}
2027
2028static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
2029 struct sk_buff *skb, struct tcmsg *t)
2030{
2031 struct cls_fl_filter *f = fh;
2032 struct nlattr *nest;
2033 struct fl_flow_key *key, *mask;
2034
2035 if (!f)
2036 return skb->len;
2037
2038 t->tcm_handle = f->handle;
2039
2040 nest = nla_nest_start(skb, TCA_OPTIONS);
2041 if (!nest)
2042 goto nla_put_failure;
2043
2044 if (f->res.classid &&
2045 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
2046 goto nla_put_failure;
2047
2048 key = &f->key;
2049 mask = &f->mask->key;
2050
2051 if (fl_dump_key(skb, net, key, mask))
2052 goto nla_put_failure;
2053
2054 if (!tc_skip_hw(f->flags))
2055 fl_hw_update_stats(tp, f);
2056
749e6720
OG		 2057 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
2058 goto nla_put_failure;
e69985c6 2059
86c55361
VB		 2060 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
2061 goto nla_put_failure;
2062
77b9900e
JP		 2063 if (tcf_exts_dump(skb, &f->exts))
2064 goto nla_put_failure;
2065
2066 nla_nest_end(skb, nest);
2067
2068 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
2069 goto nla_put_failure;
2070
2071 return skb->len;
2072
2073nla_put_failure:
2074 nla_nest_cancel(skb, nest);
2075 return -1;
2076}
2077
b95ec7eb
JP		 2078static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
2079{
2080 struct fl_flow_tmplt *tmplt = tmplt_priv;
2081 struct fl_flow_key *key, *mask;
2082 struct nlattr *nest;
2083
2084 nest = nla_nest_start(skb, TCA_OPTIONS);
2085 if (!nest)
2086 goto nla_put_failure;
2087
2088 key = &tmplt->dummy_key;
2089 mask = &tmplt->mask;
2090
2091 if (fl_dump_key(skb, net, key, mask))
2092 goto nla_put_failure;
2093
2094 nla_nest_end(skb, nest);
2095
2096 return skb->len;
2097
2098nla_put_failure:
2099 nla_nest_cancel(skb, nest);
2100 return -EMSGSIZE;
2101}
2102
07d79fc7
CW		 2103static void fl_bind_class(void *fh, u32 classid, unsigned long cl)
2104{
2105 struct cls_fl_filter *f = fh;
2106
2107 if (f && f->res.classid == classid)
2108 f->res.class = cl;
2109}
2110
77b9900e
JP		 2111static struct tcf_proto_ops cls_fl_ops __read_mostly = {
2112 .kind = "flower",
2113 .classify = fl_classify,
2114 .init = fl_init,
2115 .destroy = fl_destroy,
2116 .get = fl_get,
2117 .change = fl_change,
2118 .delete = fl_delete,
2119 .walk = fl_walk,
31533cba 2120 .reoffload = fl_reoffload,
77b9900e 2121 .dump = fl_dump,
07d79fc7 2122 .bind_class = fl_bind_class,
b95ec7eb
JP		 2123 .tmplt_create = fl_tmplt_create,
2124 .tmplt_destroy = fl_tmplt_destroy,
2125 .tmplt_dump = fl_tmplt_dump,
77b9900e
JP		 2126 .owner = THIS_MODULE,
2127};
2128
2129static int __init cls_fl_init(void)
2130{
2131 return register_tcf_proto_ops(&cls_fl_ops);
2132}
2133
2134static void __exit cls_fl_exit(void)
2135{
2136 unregister_tcf_proto_ops(&cls_fl_ops);
2137}
2138
2139module_init(cls_fl_init);
2140module_exit(cls_fl_exit);
2141
2142MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
2143MODULE_DESCRIPTION("Flower classifier");
2144MODULE_LICENSE("GPL v2");
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