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Merge branch 'net-phy-add-and-use-further-MMD-accessors'
[linux-block.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
ea205940 384 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
de4784ca
JP		 385 cls_flower.command = TC_CLSFLOWER_REPLACE;
386 cls_flower.cookie = (unsigned long) f;
05cd271f
PB		 387 cls_flower.dissector = &f->mask->dissector;
388 cls_flower.mask = &f->mask->key;
de4784ca
JP		 389 cls_flower.key = &f->mkey;
390 cls_flower.exts = &f->exts;
384c181e 391 cls_flower.classid = f->res.classid;
5b33f488 392
aeb3fecd 393 err = tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, skip_sw);
717503b9 394 if (err < 0) {
1b0f8037 395 fl_hw_destroy_filter(tp, f, NULL);
e8eb36cd 396 return err;
717503b9 397 } else if (err > 0) {
31533cba 398 f->in_hw_count = err;
caa72601 399 tcf_block_offload_inc(block, &f->flags);
717503b9
JP		 400 }
401
402 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
403 return -EINVAL;
404
e8eb36cd 405 return 0;
5b33f488
AV		 406}
407
10cbc684
AV		 408static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
409{
de4784ca 410 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 411 struct tcf_block *block = tp->chain->block;
10cbc684 412
ea205940 413 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
de4784ca
JP		 414 cls_flower.command = TC_CLSFLOWER_STATS;
415 cls_flower.cookie = (unsigned long) f;
416 cls_flower.exts = &f->exts;
384c181e 417 cls_flower.classid = f->res.classid;
10cbc684 418
aeb3fecd 419 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
10cbc684
AV		 420}
421
05cd271f 422static bool __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
1b0f8037 423 struct netlink_ext_ack *extack)
13fa876e 424{
c15ab236 425 struct cls_fl_head *head = rtnl_dereference(tp->root);
05cd271f
PB		 426 bool async = tcf_exts_get_net(&f->exts);
427 bool last;
c15ab236 428
9c160941 429 idr_remove(&head->handle_idr, f->handle);
13fa876e 430 list_del_rcu(&f->list);
05cd271f 431 last = fl_mask_put(head, f->mask, async);
79685219 432 if (!tc_skip_hw(f->flags))
1b0f8037 433 fl_hw_destroy_filter(tp, f, extack);
13fa876e 434 tcf_unbind_filter(tp, &f->res);
05cd271f 435 if (async)
aaa908ff 436 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
0dadc117
CW		 437 else
438 __fl_destroy_filter(f);
05cd271f
PB		 439
440 return last;
13fa876e
RD		 441}
442
d9363774
DB		 443static void fl_destroy_sleepable(struct work_struct *work)
444{
aaa908ff
CW		 445 struct cls_fl_head *head = container_of(to_rcu_work(work),
446 struct cls_fl_head,
447 rwork);
de9dc650
PB		 448
449 rhashtable_destroy(&head->ht);
d9363774
DB		 450 kfree(head);
451 module_put(THIS_MODULE);
452}
453
715df5ec 454static void fl_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
77b9900e
JP		 455{
456 struct cls_fl_head *head = rtnl_dereference(tp->root);
05cd271f 457 struct fl_flow_mask *mask, *next_mask;
77b9900e
JP		 458 struct cls_fl_filter *f, *next;
459
05cd271f
PB		 460 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
461 list_for_each_entry_safe(f, next, &mask->filters, list) {
462 if (__fl_delete(tp, f, extack))
463 break;
464 }
465 }
c15ab236 466 idr_destroy(&head->handle_idr);
d9363774
DB		 467
468 __module_get(THIS_MODULE);
aaa908ff 469 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
77b9900e
JP		 470}
471
8113c095 472static void *fl_get(struct tcf_proto *tp, u32 handle)
77b9900e
JP		 473{
474 struct cls_fl_head *head = rtnl_dereference(tp->root);
77b9900e 475
322d884b 476 return idr_find(&head->handle_idr, handle);
77b9900e
JP		 477}
478
479static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
480 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
481 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
482 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
483 .len = IFNAMSIZ },
484 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
485 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
486 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
487 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
488 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
489 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
490 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
491 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
492 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
493 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
494 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
495 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
496 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
497 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
498 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
499 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
b175c3a4
JHS		 500 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
501 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
9399ae9a
HHZ		 502 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
503 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
504 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
bc3103f1
AV		 505 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
506 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
507 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
508 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
509 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
510 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
511 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
512 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
513 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
aa72d708
OG		 514 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
515 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
516 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
517 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
5976c5f4
SH		 518 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
519 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
520 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
521 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
f4d997fd
HHZ		 522 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
523 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
524 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
525 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
faa3ffce
OG		 526 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
527 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
7b684884
SH		 528 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
529 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
530 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
531 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
532 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
533 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
534 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
535 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
99d31326
SH		 536 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
537 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
538 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
539 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
540 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
541 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
542 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
543 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
544 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
545 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
a577d8f7
BL		 546 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
547 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
548 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
549 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
fdfc7dd6
JP		 550 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
551 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
4d80cc0a
OG		 552 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
553 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
554 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
555 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
d64efd09
JL		 556 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
557 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
558 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
0e2c17b6
OG		 559 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
560 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
561 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
562 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
0a6e7778
PJV		 563 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
564 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
565};
566
567static const struct nla_policy
568enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
569 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
570};
571
572static const struct nla_policy
573geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
574 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
575 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
576 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
577 .len = 128 },
77b9900e
JP		 578};
579
580static void fl_set_key_val(struct nlattr **tb,
581 void *val, int val_type,
582 void *mask, int mask_type, int len)
583{
584 if (!tb[val_type])
585 return;
586 memcpy(val, nla_data(tb[val_type]), len);
587 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
588 memset(mask, 0xff, len);
589 else
590 memcpy(mask, nla_data(tb[mask_type]), len);
591}
592
5c72299f
AN		 593static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
594 struct fl_flow_key *mask)
595{
596 fl_set_key_val(tb, &key->tp_min.dst,
597 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_min.dst,
598 TCA_FLOWER_UNSPEC, sizeof(key->tp_min.dst));
599 fl_set_key_val(tb, &key->tp_max.dst,
600 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_max.dst,
601 TCA_FLOWER_UNSPEC, sizeof(key->tp_max.dst));
602 fl_set_key_val(tb, &key->tp_min.src,
603 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_min.src,
604 TCA_FLOWER_UNSPEC, sizeof(key->tp_min.src));
605 fl_set_key_val(tb, &key->tp_max.src,
606 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_max.src,
607 TCA_FLOWER_UNSPEC, sizeof(key->tp_max.src));
608
609 if ((mask->tp_min.dst && mask->tp_max.dst &&
610 htons(key->tp_max.dst) <= htons(key->tp_min.dst)) ||
611 (mask->tp_min.src && mask->tp_max.src &&
612 htons(key->tp_max.src) <= htons(key->tp_min.src)))
613 return -EINVAL;
614
615 return 0;
616}
617
1a7fca63
BL		 618static int fl_set_key_mpls(struct nlattr **tb,
619 struct flow_dissector_key_mpls *key_val,
620 struct flow_dissector_key_mpls *key_mask)
a577d8f7
BL		 621{
622 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
623 key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
624 key_mask->mpls_ttl = MPLS_TTL_MASK;
625 }
626 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
1a7fca63
BL		 627 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
628
629 if (bos & ~MPLS_BOS_MASK)
630 return -EINVAL;
631 key_val->mpls_bos = bos;
a577d8f7
BL		 632 key_mask->mpls_bos = MPLS_BOS_MASK;
633 }
634 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
1a7fca63
BL		 635 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
636
637 if (tc & ~MPLS_TC_MASK)
638 return -EINVAL;
639 key_val->mpls_tc = tc;
a577d8f7
BL		 640 key_mask->mpls_tc = MPLS_TC_MASK;
641 }
642 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
1a7fca63
BL		 643 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
644
645 if (label & ~MPLS_LABEL_MASK)
646 return -EINVAL;
647 key_val->mpls_label = label;
a577d8f7
BL		 648 key_mask->mpls_label = MPLS_LABEL_MASK;
649 }
1a7fca63 650 return 0;
a577d8f7
BL		 651}
652
9399ae9a 653static void fl_set_key_vlan(struct nlattr **tb,
aaab0834 654 __be16 ethertype,
d64efd09 655 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 656 struct flow_dissector_key_vlan *key_val,
657 struct flow_dissector_key_vlan *key_mask)
658{
659#define VLAN_PRIORITY_MASK 0x7
660
d64efd09 661 if (tb[vlan_id_key]) {
9399ae9a 662 key_val->vlan_id =
d64efd09 663 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
9399ae9a
HHZ		 664 key_mask->vlan_id = VLAN_VID_MASK;
665 }
d64efd09 666 if (tb[vlan_prio_key]) {
9399ae9a 667 key_val->vlan_priority =
d64efd09 668 nla_get_u8(tb[vlan_prio_key]) &
9399ae9a
HHZ		 669 VLAN_PRIORITY_MASK;
670 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
671 }
aaab0834
JL		 672 key_val->vlan_tpid = ethertype;
673 key_mask->vlan_tpid = cpu_to_be16(~0);
9399ae9a
HHZ		 674}
675
faa3ffce
OG		 676static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
677 u32 *dissector_key, u32 *dissector_mask,
678 u32 flower_flag_bit, u32 dissector_flag_bit)
679{
680 if (flower_mask & flower_flag_bit) {
681 *dissector_mask |= dissector_flag_bit;
682 if (flower_key & flower_flag_bit)
683 *dissector_key |= dissector_flag_bit;
684 }
685}
686
d9724772
OG		 687static int fl_set_key_flags(struct nlattr **tb,
688 u32 *flags_key, u32 *flags_mask)
faa3ffce
OG		 689{
690 u32 key, mask;
691
d9724772
OG		 692 /* mask is mandatory for flags */
693 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
694 return -EINVAL;
faa3ffce
OG		 695
696 key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
d9724772 697 mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
faa3ffce
OG		 698
699 *flags_key = 0;
700 *flags_mask = 0;
701
702 fl_set_key_flag(key, mask, flags_key, flags_mask,
703 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 704 fl_set_key_flag(key, mask, flags_key, flags_mask,
705 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
706 FLOW_DIS_FIRST_FRAG);
d9724772
OG		 707
708 return 0;
faa3ffce
OG		 709}
710
0e2c17b6 711static void fl_set_key_ip(struct nlattr **tb, bool encap,
4d80cc0a
OG		 712 struct flow_dissector_key_ip *key,
713 struct flow_dissector_key_ip *mask)
714{
0e2c17b6
OG		 715 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
716 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
717 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
718 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
4d80cc0a 719
0e2c17b6
OG		 720 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
721 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
4d80cc0a
OG		 722}
723
0a6e7778
PJV		 724static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
725 int depth, int option_len,
726 struct netlink_ext_ack *extack)
727{
728 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
729 struct nlattr *class = NULL, *type = NULL, *data = NULL;
730 struct geneve_opt *opt;
731 int err, data_len = 0;
732
733 if (option_len > sizeof(struct geneve_opt))
734 data_len = option_len - sizeof(struct geneve_opt);
735
736 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
737 memset(opt, 0xff, option_len);
738 opt->length = data_len / 4;
739 opt->r1 = 0;
740 opt->r2 = 0;
741 opt->r3 = 0;
742
743 /* If no mask has been prodived we assume an exact match. */
744 if (!depth)
745 return sizeof(struct geneve_opt) + data_len;
746
747 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
748 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
749 return -EINVAL;
750 }
751
752 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
753 nla, geneve_opt_policy, extack);
754 if (err < 0)
755 return err;
756
757 /* We are not allowed to omit any of CLASS, TYPE or DATA
758 * fields from the key.
759 */
760 if (!option_len &&
761 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
762 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
763 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
764 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
765 return -EINVAL;
766 }
767
768 /* Omitting any of CLASS, TYPE or DATA fields is allowed
769 * for the mask.
770 */
771 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
772 int new_len = key->enc_opts.len;
773
774 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
775 data_len = nla_len(data);
776 if (data_len < 4) {
777 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
778 return -ERANGE;
779 }
780 if (data_len % 4) {
781 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
782 return -ERANGE;
783 }
784
785 new_len += sizeof(struct geneve_opt) + data_len;
786 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
787 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
788 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
789 return -ERANGE;
790 }
791 opt->length = data_len / 4;
792 memcpy(opt->opt_data, nla_data(data), data_len);
793 }
794
795 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
796 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
797 opt->opt_class = nla_get_be16(class);
798 }
799
800 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
801 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
802 opt->type = nla_get_u8(type);
803 }
804
805 return sizeof(struct geneve_opt) + data_len;
806}
807
808static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
809 struct fl_flow_key *mask,
810 struct netlink_ext_ack *extack)
811{
812 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
63c82997
JK		 813 int err, option_len, key_depth, msk_depth = 0;
814
815 err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS],
816 TCA_FLOWER_KEY_ENC_OPTS_MAX,
817 enc_opts_policy, extack);
818 if (err)
819 return err;
0a6e7778
PJV		 820
821 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
822
823 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
63c82997
JK		 824 err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
825 TCA_FLOWER_KEY_ENC_OPTS_MAX,
826 enc_opts_policy, extack);
827 if (err)
828 return err;
829
0a6e7778
PJV		 830 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
831 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
832 }
833
834 nla_for_each_attr(nla_opt_key, nla_enc_key,
835 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
836 switch (nla_type(nla_opt_key)) {
837 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
838 option_len = 0;
839 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
840 option_len = fl_set_geneve_opt(nla_opt_key, key,
841 key_depth, option_len,
842 extack);
843 if (option_len < 0)
844 return option_len;
845
846 key->enc_opts.len += option_len;
847 /* At the same time we need to parse through the mask
848 * in order to verify exact and mask attribute lengths.
849 */
850 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
851 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
852 msk_depth, option_len,
853 extack);
854 if (option_len < 0)
855 return option_len;
856
857 mask->enc_opts.len += option_len;
858 if (key->enc_opts.len != mask->enc_opts.len) {
859 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
860 return -EINVAL;
861 }
862
863 if (msk_depth)
864 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
865 break;
866 default:
867 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
868 return -EINVAL;
869 }
870 }
871
872 return 0;
873}
874
77b9900e 875static int fl_set_key(struct net *net, struct nlattr **tb,
1057c55f
AA		 876 struct fl_flow_key *key, struct fl_flow_key *mask,
877 struct netlink_ext_ack *extack)
77b9900e 878{
9399ae9a 879 __be16 ethertype;
d9724772 880 int ret = 0;
dd3aa3b5 881#ifdef CONFIG_NET_CLS_IND
77b9900e 882 if (tb[TCA_FLOWER_INDEV]) {
1057c55f 883 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
77b9900e
JP		 884 if (err < 0)
885 return err;
886 key->indev_ifindex = err;
887 mask->indev_ifindex = 0xffffffff;
888 }
dd3aa3b5 889#endif
77b9900e
JP		 890
891 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
892 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
893 sizeof(key->eth.dst));
894 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
895 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
896 sizeof(key->eth.src));
66530bdf 897
0b498a52 898 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
9399ae9a
HHZ		 899 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
900
aaab0834 901 if (eth_type_vlan(ethertype)) {
d64efd09
JL		 902 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
903 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan,
904 &mask->vlan);
905
5e9a0fe4
JL		 906 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
907 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
908 if (eth_type_vlan(ethertype)) {
909 fl_set_key_vlan(tb, ethertype,
910 TCA_FLOWER_KEY_CVLAN_ID,
911 TCA_FLOWER_KEY_CVLAN_PRIO,
912 &key->cvlan, &mask->cvlan);
913 fl_set_key_val(tb, &key->basic.n_proto,
914 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
915 &mask->basic.n_proto,
916 TCA_FLOWER_UNSPEC,
917 sizeof(key->basic.n_proto));
918 } else {
919 key->basic.n_proto = ethertype;
920 mask->basic.n_proto = cpu_to_be16(~0);
921 }
d64efd09 922 }
0b498a52
AB		 923 } else {
924 key->basic.n_proto = ethertype;
925 mask->basic.n_proto = cpu_to_be16(~0);
926 }
9399ae9a 927 }
66530bdf 928
77b9900e
JP		 929 if (key->basic.n_proto == htons(ETH_P_IP) ||
930 key->basic.n_proto == htons(ETH_P_IPV6)) {
931 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
932 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
933 sizeof(key->basic.ip_proto));
0e2c17b6 934 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
77b9900e 935 }
66530bdf
JHS		 936
937 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
938 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 939 mask->control.addr_type = ~0;
77b9900e
JP		 940 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
941 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
942 sizeof(key->ipv4.src));
943 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
944 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
945 sizeof(key->ipv4.dst));
66530bdf
JHS		 946 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
947 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 948 mask->control.addr_type = ~0;
77b9900e
JP		 949 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
950 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
951 sizeof(key->ipv6.src));
952 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
953 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
954 sizeof(key->ipv6.dst));
955 }
66530bdf 956
77b9900e
JP		 957 if (key->basic.ip_proto == IPPROTO_TCP) {
958 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 959 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 960 sizeof(key->tp.src));
961 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 962 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
77b9900e 963 sizeof(key->tp.dst));
fdfc7dd6
JP		 964 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
965 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
966 sizeof(key->tcp.flags));
77b9900e
JP		 967 } else if (key->basic.ip_proto == IPPROTO_UDP) {
968 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 969 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 970 sizeof(key->tp.src));
971 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 972 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
77b9900e 973 sizeof(key->tp.dst));
5976c5f4
SH		 974 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
975 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
976 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
977 sizeof(key->tp.src));
978 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
979 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
980 sizeof(key->tp.dst));
7b684884
SH		 981 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
982 key->basic.ip_proto == IPPROTO_ICMP) {
983 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
984 &mask->icmp.type,
985 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
986 sizeof(key->icmp.type));
987 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
988 &mask->icmp.code,
989 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
990 sizeof(key->icmp.code));
991 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
992 key->basic.ip_proto == IPPROTO_ICMPV6) {
993 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
994 &mask->icmp.type,
995 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
996 sizeof(key->icmp.type));
040587af 997 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
7b684884 998 &mask->icmp.code,
040587af 999 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
7b684884 1000 sizeof(key->icmp.code));
a577d8f7
BL		 1001 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1002 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
1a7fca63
BL		 1003 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls);
1004 if (ret)
1005 return ret;
99d31326
SH		 1006 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1007 key->basic.n_proto == htons(ETH_P_RARP)) {
1008 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1009 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1010 sizeof(key->arp.sip));
1011 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1012 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1013 sizeof(key->arp.tip));
1014 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1015 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1016 sizeof(key->arp.op));
1017 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1018 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1019 sizeof(key->arp.sha));
1020 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1021 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1022 sizeof(key->arp.tha));
77b9900e
JP		 1023 }
1024
5c72299f
AN		 1025 if (key->basic.ip_proto == IPPROTO_TCP ||
1026 key->basic.ip_proto == IPPROTO_UDP ||
1027 key->basic.ip_proto == IPPROTO_SCTP) {
1028 ret = fl_set_key_port_range(tb, key, mask);
1029 if (ret)
1030 return ret;
1031 }
1032
bc3103f1
AV		 1033 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1034 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1035 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 1036 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1037 fl_set_key_val(tb, &key->enc_ipv4.src,
1038 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1039 &mask->enc_ipv4.src,
1040 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1041 sizeof(key->enc_ipv4.src));
1042 fl_set_key_val(tb, &key->enc_ipv4.dst,
1043 TCA_FLOWER_KEY_ENC_IPV4_DST,
1044 &mask->enc_ipv4.dst,
1045 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1046 sizeof(key->enc_ipv4.dst));
1047 }
1048
1049 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1050 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1051 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 1052 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 1053 fl_set_key_val(tb, &key->enc_ipv6.src,
1054 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1055 &mask->enc_ipv6.src,
1056 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1057 sizeof(key->enc_ipv6.src));
1058 fl_set_key_val(tb, &key->enc_ipv6.dst,
1059 TCA_FLOWER_KEY_ENC_IPV6_DST,
1060 &mask->enc_ipv6.dst,
1061 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1062 sizeof(key->enc_ipv6.dst));
1063 }
1064
1065 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1066 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
bc3103f1
AV		 1067 sizeof(key->enc_key_id.keyid));
1068
f4d997fd
HHZ		 1069 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1070 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1071 sizeof(key->enc_tp.src));
1072
1073 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1074 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1075 sizeof(key->enc_tp.dst));
1076
0e2c17b6
OG		 1077 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1078
0a6e7778
PJV		 1079 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1080 ret = fl_set_enc_opt(tb, key, mask, extack);
1081 if (ret)
1082 return ret;
1083 }
1084
d9724772
OG		 1085 if (tb[TCA_FLOWER_KEY_FLAGS])
1086 ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
faa3ffce 1087
d9724772 1088 return ret;
77b9900e
JP		 1089}
1090
05cd271f
PB		 1091static void fl_mask_copy(struct fl_flow_mask *dst,
1092 struct fl_flow_mask *src)
77b9900e 1093{
05cd271f
PB		 1094 const void *psrc = fl_key_get_start(&src->key, src);
1095 void *pdst = fl_key_get_start(&dst->key, src);
77b9900e 1096
05cd271f
PB		 1097 memcpy(pdst, psrc, fl_mask_range(src));
1098 dst->range = src->range;
77b9900e
JP		 1099}
1100
1101static const struct rhashtable_params fl_ht_params = {
1102 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1103 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1104 .automatic_shrinking = true,
1105};
1106
05cd271f 1107static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
77b9900e 1108{
05cd271f
PB		 1109 mask->filter_ht_params = fl_ht_params;
1110 mask->filter_ht_params.key_len = fl_mask_range(mask);
1111 mask->filter_ht_params.key_offset += mask->range.start;
77b9900e 1112
05cd271f 1113 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
77b9900e
JP		 1114}
1115
1116#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
cb205a81 1117#define FL_KEY_MEMBER_SIZE(member) FIELD_SIZEOF(struct fl_flow_key, member)
77b9900e 1118
339ba878
HHZ		 1119#define FL_KEY_IS_MASKED(mask, member) \
1120 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1121 0, FL_KEY_MEMBER_SIZE(member)) \
77b9900e
JP		 1122
1123#define FL_KEY_SET(keys, cnt, id, member) \
1124 do { \
1125 keys[cnt].key_id = id; \
1126 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1127 cnt++; \
1128 } while(0);
1129
339ba878 1130#define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
77b9900e 1131 do { \
339ba878 1132 if (FL_KEY_IS_MASKED(mask, member)) \
77b9900e
JP		 1133 FL_KEY_SET(keys, cnt, id, member); \
1134 } while(0);
1135
33fb5cba
JP		 1136static void fl_init_dissector(struct flow_dissector *dissector,
1137 struct fl_flow_key *mask)
77b9900e
JP		 1138{
1139 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1140 size_t cnt = 0;
1141
42aecaa9 1142 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
77b9900e 1143 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
33fb5cba 1144 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1145 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
33fb5cba 1146 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1147 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
33fb5cba 1148 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1149 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
5c72299f
AN		 1150 if (FL_KEY_IS_MASKED(mask, tp) ||
1151 FL_KEY_IS_MASKED(mask, tp_min) || FL_KEY_IS_MASKED(mask, tp_max))
1152 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_PORTS, tp);
33fb5cba 1153 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
4d80cc0a 1154 FLOW_DISSECTOR_KEY_IP, ip);
33fb5cba 1155 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
fdfc7dd6 1156 FLOW_DISSECTOR_KEY_TCP, tcp);
33fb5cba 1157 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
7b684884 1158 FLOW_DISSECTOR_KEY_ICMP, icmp);
33fb5cba 1159 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
99d31326 1160 FLOW_DISSECTOR_KEY_ARP, arp);
33fb5cba 1161 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
a577d8f7 1162 FLOW_DISSECTOR_KEY_MPLS, mpls);
33fb5cba 1163 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
9399ae9a 1164 FLOW_DISSECTOR_KEY_VLAN, vlan);
33fb5cba 1165 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
d64efd09 1166 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
33fb5cba 1167 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1168 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
33fb5cba 1169 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1170 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
33fb5cba 1171 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1172 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
33fb5cba
JP		 1173 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1174 FL_KEY_IS_MASKED(mask, enc_ipv6))
519d1052
HHZ		 1175 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1176 enc_control);
33fb5cba 1177 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
f4d997fd 1178 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
33fb5cba 1179 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
0e2c17b6 1180 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
0a6e7778
PJV		 1181 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1182 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
77b9900e 1183
33fb5cba 1184 skb_flow_dissector_init(dissector, keys, cnt);
05cd271f
PB		 1185}
1186
1187static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1188 struct fl_flow_mask *mask)
1189{
1190 struct fl_flow_mask *newmask;
1191 int err;
1192
1193 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1194 if (!newmask)
1195 return ERR_PTR(-ENOMEM);
1196
1197 fl_mask_copy(newmask, mask);
1198
5c72299f
AN		 1199 if ((newmask->key.tp_min.dst && newmask->key.tp_max.dst) ||
1200 (newmask->key.tp_min.src && newmask->key.tp_max.src))
1201 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
1202
05cd271f
PB		 1203 err = fl_init_mask_hashtable(newmask);
1204 if (err)
1205 goto errout_free;
1206
33fb5cba 1207 fl_init_dissector(&newmask->dissector, &newmask->key);
05cd271f
PB		 1208
1209 INIT_LIST_HEAD_RCU(&newmask->filters);
1210
1211 err = rhashtable_insert_fast(&head->ht, &newmask->ht_node,
1212 mask_ht_params);
1213 if (err)
1214 goto errout_destroy;
1215
1216 list_add_tail_rcu(&newmask->list, &head->masks);
1217
1218 return newmask;
1219
1220errout_destroy:
1221 rhashtable_destroy(&newmask->ht);
1222errout_free:
1223 kfree(newmask);
1224
1225 return ERR_PTR(err);
77b9900e
JP		 1226}
1227
1228static int fl_check_assign_mask(struct cls_fl_head *head,
05cd271f
PB		 1229 struct cls_fl_filter *fnew,
1230 struct cls_fl_filter *fold,
77b9900e
JP		 1231 struct fl_flow_mask *mask)
1232{
05cd271f 1233 struct fl_flow_mask *newmask;
77b9900e 1234
05cd271f
PB		 1235 fnew->mask = rhashtable_lookup_fast(&head->ht, mask, mask_ht_params);
1236 if (!fnew->mask) {
1237 if (fold)
77b9900e 1238 return -EINVAL;
77b9900e 1239
05cd271f
PB		 1240 newmask = fl_create_new_mask(head, mask);
1241 if (IS_ERR(newmask))
1242 return PTR_ERR(newmask);
77b9900e 1243
05cd271f 1244 fnew->mask = newmask;
f6521c58 1245 } else if (fold && fold->mask != fnew->mask) {
05cd271f
PB		 1246 return -EINVAL;
1247 }
77b9900e
JP		 1248
1249 return 0;
1250}
1251
1252static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1253 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1254 unsigned long base, struct nlattr **tb,
50a56190 1255 struct nlattr *est, bool ovr,
b95ec7eb 1256 struct fl_flow_tmplt *tmplt,
50a56190 1257 struct netlink_ext_ack *extack)
77b9900e 1258{
77b9900e
JP		 1259 int err;
1260
50a56190 1261 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, extack);
77b9900e
JP		 1262 if (err < 0)
1263 return err;
1264
1265 if (tb[TCA_FLOWER_CLASSID]) {
1266 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
1267 tcf_bind_filter(tp, &f->res, base);
1268 }
1269
1057c55f 1270 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
77b9900e 1271 if (err)
45507529 1272 return err;
77b9900e
JP		 1273
1274 fl_mask_update_range(mask);
1275 fl_set_masked_key(&f->mkey, &f->key, mask);
1276
b95ec7eb
JP		 1277 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1278 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1279 return -EINVAL;
1280 }
1281
77b9900e 1282 return 0;
77b9900e
JP		 1283}
1284
77b9900e
JP		 1285static int fl_change(struct net *net, struct sk_buff *in_skb,
1286 struct tcf_proto *tp, unsigned long base,
1287 u32 handle, struct nlattr **tca,
7306db38 1288 void **arg, bool ovr, struct netlink_ext_ack *extack)
77b9900e
JP		 1289{
1290 struct cls_fl_head *head = rtnl_dereference(tp->root);
8113c095 1291 struct cls_fl_filter *fold = *arg;
77b9900e 1292 struct cls_fl_filter *fnew;
2cddd201 1293 struct fl_flow_mask *mask;
39b7b6a6 1294 struct nlattr **tb;
77b9900e
JP		 1295 int err;
1296
1297 if (!tca[TCA_OPTIONS])
1298 return -EINVAL;
1299
2cddd201
IV		 1300 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
1301 if (!mask)
39b7b6a6
AB		 1302 return -ENOBUFS;
1303
2cddd201
IV		 1304 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1305 if (!tb) {
1306 err = -ENOBUFS;
1307 goto errout_mask_alloc;
1308 }
1309
fceb6435
JB		 1310 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
1311 fl_policy, NULL);
77b9900e 1312 if (err < 0)
39b7b6a6 1313 goto errout_tb;
77b9900e 1314
39b7b6a6
AB		 1315 if (fold && handle && fold->handle != handle) {
1316 err = -EINVAL;
1317 goto errout_tb;
1318 }
77b9900e
JP		 1319
1320 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
39b7b6a6
AB		 1321 if (!fnew) {
1322 err = -ENOBUFS;
1323 goto errout_tb;
1324 }
77b9900e 1325
b9a24bb7
WC		 1326 err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0);
1327 if (err < 0)
1328 goto errout;
77b9900e
JP		 1329
1330 if (!handle) {
85bd0438
MW		 1331 handle = 1;
1332 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1333 INT_MAX, GFP_KERNEL);
1334 } else if (!fold) {
1335 /* user specifies a handle and it doesn't exist */
1336 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1337 handle, GFP_KERNEL);
77b9900e 1338 }
85bd0438
MW		 1339 if (err)
1340 goto errout;
1341 fnew->handle = handle;
77b9900e 1342
e69985c6
AV		 1343 if (tb[TCA_FLOWER_FLAGS]) {
1344 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
1345
1346 if (!tc_flags_valid(fnew->flags)) {
1347 err = -EINVAL;
fe2502e4 1348 goto errout_idr;
e69985c6
AV		 1349 }
1350 }
5b33f488 1351
2cddd201 1352 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
b95ec7eb 1353 tp->chain->tmplt_priv, extack);
77b9900e 1354 if (err)
fe2502e4 1355 goto errout_idr;
77b9900e 1356
2cddd201 1357 err = fl_check_assign_mask(head, fnew, fold, mask);
77b9900e 1358 if (err)
fe2502e4 1359 goto errout_idr;
77b9900e 1360
4cc1feeb 1361 if (!fold && __fl_lookup(fnew->mask, &fnew->mkey)) {
35cc3cef
OG		 1362 err = -EEXIST;
1363 goto errout_mask;
e69985c6 1364 }
5b33f488 1365
35cc3cef
OG		 1366 err = rhashtable_insert_fast(&fnew->mask->ht, &fnew->ht_node,
1367 fnew->mask->filter_ht_params);
1368 if (err)
1369 goto errout_mask;
1370
79685219 1371 if (!tc_skip_hw(fnew->flags)) {
05cd271f 1372 err = fl_hw_replace_filter(tp, fnew, extack);
79685219 1373 if (err)
05cd271f 1374 goto errout_mask;
79685219 1375 }
5b33f488 1376
55593960
OG		 1377 if (!tc_in_hw(fnew->flags))
1378 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
1379
5b33f488 1380 if (fold) {
599d2570
RD		 1381 rhashtable_remove_fast(&fold->mask->ht,
1382 &fold->ht_node,
1383 fold->mask->filter_ht_params);
79685219 1384 if (!tc_skip_hw(fold->flags))
1b0f8037 1385 fl_hw_destroy_filter(tp, fold, NULL);
5b33f488 1386 }
77b9900e 1387
8113c095 1388 *arg = fnew;
77b9900e
JP		 1389
1390 if (fold) {
234a4624 1391 idr_replace(&head->handle_idr, fnew, fnew->handle);
ff3532f2 1392 list_replace_rcu(&fold->list, &fnew->list);
77b9900e 1393 tcf_unbind_filter(tp, &fold->res);
0dadc117 1394 tcf_exts_get_net(&fold->exts);
aaa908ff 1395 tcf_queue_work(&fold->rwork, fl_destroy_filter_work);
77b9900e 1396 } else {
05cd271f 1397 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
77b9900e
JP		 1398 }
1399
39b7b6a6 1400 kfree(tb);
2cddd201 1401 kfree(mask);
77b9900e
JP		 1402 return 0;
1403
05cd271f
PB		 1404errout_mask:
1405 fl_mask_put(head, fnew->mask, false);
1406
fe2502e4 1407errout_idr:
8258d2da 1408 if (!fold)
9c160941 1409 idr_remove(&head->handle_idr, fnew->handle);
77b9900e 1410errout:
b9a24bb7 1411 tcf_exts_destroy(&fnew->exts);
77b9900e 1412 kfree(fnew);
39b7b6a6
AB		 1413errout_tb:
1414 kfree(tb);
2cddd201
IV		 1415errout_mask_alloc:
1416 kfree(mask);
77b9900e
JP		 1417 return err;
1418}
1419
571acf21
AA		 1420static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
1421 struct netlink_ext_ack *extack)
77b9900e
JP		 1422{
1423 struct cls_fl_head *head = rtnl_dereference(tp->root);
8113c095 1424 struct cls_fl_filter *f = arg;
77b9900e 1425
35cc3cef
OG		 1426 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
1427 f->mask->filter_ht_params);
1b0f8037 1428 __fl_delete(tp, f, extack);
05cd271f 1429 *last = list_empty(&head->masks);
77b9900e
JP		 1430 return 0;
1431}
1432
1433static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg)
1434{
1435 struct cls_fl_head *head = rtnl_dereference(tp->root);
1436 struct cls_fl_filter *f;
05cd271f 1437
01683a14
VB		 1438 arg->count = arg->skip;
1439
1440 while ((f = idr_get_next_ul(&head->handle_idr,
1441 &arg->cookie)) != NULL) {
1442 if (arg->fn(tp, f, arg) < 0) {
1443 arg->stop = 1;
1444 break;
05cd271f 1445 }
01683a14
VB		 1446 arg->cookie = f->handle + 1;
1447 arg->count++;
77b9900e
JP		 1448 }
1449}
1450
31533cba
JH		 1451static int fl_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
1452 void *cb_priv, struct netlink_ext_ack *extack)
1453{
1454 struct cls_fl_head *head = rtnl_dereference(tp->root);
1455 struct tc_cls_flower_offload cls_flower = {};
1456 struct tcf_block *block = tp->chain->block;
1457 struct fl_flow_mask *mask;
1458 struct cls_fl_filter *f;
1459 int err;
1460
1461 list_for_each_entry(mask, &head->masks, list) {
1462 list_for_each_entry(f, &mask->filters, list) {
1463 if (tc_skip_hw(f->flags))
1464 continue;
1465
1466 tc_cls_common_offload_init(&cls_flower.common, tp,
1467 f->flags, extack);
1468 cls_flower.command = add ?
1469 TC_CLSFLOWER_REPLACE : TC_CLSFLOWER_DESTROY;
1470 cls_flower.cookie = (unsigned long)f;
1471 cls_flower.dissector = &mask->dissector;
9ca61630
VB		 1472 cls_flower.mask = &mask->key;
1473 cls_flower.key = &f->mkey;
31533cba
JH		 1474 cls_flower.exts = &f->exts;
1475 cls_flower.classid = f->res.classid;
1476
1477 err = cb(TC_SETUP_CLSFLOWER, &cls_flower, cb_priv);
1478 if (err) {
1479 if (add && tc_skip_sw(f->flags))
1480 return err;
1481 continue;
1482 }
1483
1484 tc_cls_offload_cnt_update(block, &f->in_hw_count,
1485 &f->flags, add);
1486 }
1487 }
1488
1489 return 0;
1490}
1491
34738452
JP		 1492static void fl_hw_create_tmplt(struct tcf_chain *chain,
1493 struct fl_flow_tmplt *tmplt)
1494{
1495 struct tc_cls_flower_offload cls_flower = {};
1496 struct tcf_block *block = chain->block;
1497 struct tcf_exts dummy_exts = { 0, };
1498
1499 cls_flower.common.chain_index = chain->index;
1500 cls_flower.command = TC_CLSFLOWER_TMPLT_CREATE;
1501 cls_flower.cookie = (unsigned long) tmplt;
1502 cls_flower.dissector = &tmplt->dissector;
1503 cls_flower.mask = &tmplt->mask;
1504 cls_flower.key = &tmplt->dummy_key;
1505 cls_flower.exts = &dummy_exts;
1506
1507 /* We don't care if driver (any of them) fails to handle this
1508 * call. It serves just as a hint for it.
1509 */
aeb3fecd 1510 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
34738452
JP		 1511}
1512
1513static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
1514 struct fl_flow_tmplt *tmplt)
1515{
1516 struct tc_cls_flower_offload cls_flower = {};
1517 struct tcf_block *block = chain->block;
1518
1519 cls_flower.common.chain_index = chain->index;
1520 cls_flower.command = TC_CLSFLOWER_TMPLT_DESTROY;
1521 cls_flower.cookie = (unsigned long) tmplt;
1522
aeb3fecd 1523 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false);
34738452
JP		 1524}
1525
b95ec7eb
JP		 1526static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
1527 struct nlattr **tca,
1528 struct netlink_ext_ack *extack)
1529{
1530 struct fl_flow_tmplt *tmplt;
1531 struct nlattr **tb;
1532 int err;
1533
1534 if (!tca[TCA_OPTIONS])
1535 return ERR_PTR(-EINVAL);
1536
1537 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1538 if (!tb)
1539 return ERR_PTR(-ENOBUFS);
1540 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
1541 fl_policy, NULL);
1542 if (err)
1543 goto errout_tb;
1544
1545 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
1cbc36a5
DC		 1546 if (!tmplt) {
1547 err = -ENOMEM;
b95ec7eb 1548 goto errout_tb;
1cbc36a5 1549 }
b95ec7eb
JP		 1550 tmplt->chain = chain;
1551 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
1552 if (err)
1553 goto errout_tmplt;
1554 kfree(tb);
1555
1556 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
1557
34738452
JP		 1558 fl_hw_create_tmplt(chain, tmplt);
1559
b95ec7eb
JP		 1560 return tmplt;
1561
1562errout_tmplt:
1563 kfree(tmplt);
1564errout_tb:
1565 kfree(tb);
1566 return ERR_PTR(err);
1567}
1568
ec3ed293
VB		 1569static void fl_tmplt_destroy(void *tmplt_priv)
1570{
1571 struct fl_flow_tmplt *tmplt = tmplt_priv;
1572
95278dda
CW		 1573 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
1574 kfree(tmplt);
ec3ed293
VB		 1575}
1576
77b9900e
JP		 1577static int fl_dump_key_val(struct sk_buff *skb,
1578 void *val, int val_type,
1579 void *mask, int mask_type, int len)
1580{
1581 int err;
1582
1583 if (!memchr_inv(mask, 0, len))
1584 return 0;
1585 err = nla_put(skb, val_type, len, val);
1586 if (err)
1587 return err;
1588 if (mask_type != TCA_FLOWER_UNSPEC) {
1589 err = nla_put(skb, mask_type, len, mask);
1590 if (err)
1591 return err;
1592 }
1593 return 0;
1594}
1595
5c72299f
AN		 1596static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
1597 struct fl_flow_key *mask)
1598{
1599 if (fl_dump_key_val(skb, &key->tp_min.dst, TCA_FLOWER_KEY_PORT_DST_MIN,
1600 &mask->tp_min.dst, TCA_FLOWER_UNSPEC,
1601 sizeof(key->tp_min.dst)) ||
1602 fl_dump_key_val(skb, &key->tp_max.dst, TCA_FLOWER_KEY_PORT_DST_MAX,
1603 &mask->tp_max.dst, TCA_FLOWER_UNSPEC,
1604 sizeof(key->tp_max.dst)) ||
1605 fl_dump_key_val(skb, &key->tp_min.src, TCA_FLOWER_KEY_PORT_SRC_MIN,
1606 &mask->tp_min.src, TCA_FLOWER_UNSPEC,
1607 sizeof(key->tp_min.src)) ||
1608 fl_dump_key_val(skb, &key->tp_max.src, TCA_FLOWER_KEY_PORT_SRC_MAX,
1609 &mask->tp_max.src, TCA_FLOWER_UNSPEC,
1610 sizeof(key->tp_max.src)))
1611 return -1;
1612
1613 return 0;
1614}
1615
a577d8f7
BL		 1616static int fl_dump_key_mpls(struct sk_buff *skb,
1617 struct flow_dissector_key_mpls *mpls_key,
1618 struct flow_dissector_key_mpls *mpls_mask)
1619{
1620 int err;
1621
1622 if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask)))
1623 return 0;
1624 if (mpls_mask->mpls_ttl) {
1625 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
1626 mpls_key->mpls_ttl);
1627 if (err)
1628 return err;
1629 }
1630 if (mpls_mask->mpls_tc) {
1631 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
1632 mpls_key->mpls_tc);
1633 if (err)
1634 return err;
1635 }
1636 if (mpls_mask->mpls_label) {
1637 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
1638 mpls_key->mpls_label);
1639 if (err)
1640 return err;
1641 }
1642 if (mpls_mask->mpls_bos) {
1643 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
1644 mpls_key->mpls_bos);
1645 if (err)
1646 return err;
1647 }
1648 return 0;
1649}
1650
0e2c17b6 1651static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
4d80cc0a
OG		 1652 struct flow_dissector_key_ip *key,
1653 struct flow_dissector_key_ip *mask)
1654{
0e2c17b6
OG		 1655 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1656 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1657 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1658 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
1659
1660 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
1661 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
4d80cc0a
OG		 1662 return -1;
1663
1664 return 0;
1665}
1666
9399ae9a 1667static int fl_dump_key_vlan(struct sk_buff *skb,
d64efd09 1668 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 1669 struct flow_dissector_key_vlan *vlan_key,
1670 struct flow_dissector_key_vlan *vlan_mask)
1671{
1672 int err;
1673
1674 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
1675 return 0;
1676 if (vlan_mask->vlan_id) {
d64efd09 1677 err = nla_put_u16(skb, vlan_id_key,
9399ae9a
HHZ		 1678 vlan_key->vlan_id);
1679 if (err)
1680 return err;
1681 }
1682 if (vlan_mask->vlan_priority) {
d64efd09 1683 err = nla_put_u8(skb, vlan_prio_key,
9399ae9a
HHZ		 1684 vlan_key->vlan_priority);
1685 if (err)
1686 return err;
1687 }
1688 return 0;
1689}
1690
faa3ffce
OG		 1691static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
1692 u32 *flower_key, u32 *flower_mask,
1693 u32 flower_flag_bit, u32 dissector_flag_bit)
1694{
1695 if (dissector_mask & dissector_flag_bit) {
1696 *flower_mask |= flower_flag_bit;
1697 if (dissector_key & dissector_flag_bit)
1698 *flower_key |= flower_flag_bit;
1699 }
1700}
1701
1702static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
1703{
1704 u32 key, mask;
1705 __be32 _key, _mask;
1706 int err;
1707
1708 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
1709 return 0;
1710
1711 key = 0;
1712 mask = 0;
1713
1714 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1715 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 1716 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1717 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1718 FLOW_DIS_FIRST_FRAG);
faa3ffce
OG		 1719
1720 _key = cpu_to_be32(key);
1721 _mask = cpu_to_be32(mask);
1722
1723 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
1724 if (err)
1725 return err;
1726
1727 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
1728}
1729
0a6e7778
PJV		 1730static int fl_dump_key_geneve_opt(struct sk_buff *skb,
1731 struct flow_dissector_key_enc_opts *enc_opts)
1732{
1733 struct geneve_opt *opt;
1734 struct nlattr *nest;
1735 int opt_off = 0;
1736
1737 nest = nla_nest_start(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
1738 if (!nest)
1739 goto nla_put_failure;
1740
1741 while (enc_opts->len > opt_off) {
1742 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
1743
1744 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
1745 opt->opt_class))
1746 goto nla_put_failure;
1747 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
1748 opt->type))
1749 goto nla_put_failure;
1750 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
1751 opt->length * 4, opt->opt_data))
1752 goto nla_put_failure;
1753
1754 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
1755 }
1756 nla_nest_end(skb, nest);
1757 return 0;
1758
1759nla_put_failure:
1760 nla_nest_cancel(skb, nest);
1761 return -EMSGSIZE;
1762}
1763
1764static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
1765 struct flow_dissector_key_enc_opts *enc_opts)
1766{
1767 struct nlattr *nest;
1768 int err;
1769
1770 if (!enc_opts->len)
1771 return 0;
1772
1773 nest = nla_nest_start(skb, enc_opt_type);
1774 if (!nest)
1775 goto nla_put_failure;
1776
1777 switch (enc_opts->dst_opt_type) {
1778 case TUNNEL_GENEVE_OPT:
1779 err = fl_dump_key_geneve_opt(skb, enc_opts);
1780 if (err)
1781 goto nla_put_failure;
1782 break;
1783 default:
1784 goto nla_put_failure;
1785 }
1786 nla_nest_end(skb, nest);
1787 return 0;
1788
1789nla_put_failure:
1790 nla_nest_cancel(skb, nest);
1791 return -EMSGSIZE;
1792}
1793
1794static int fl_dump_key_enc_opt(struct sk_buff *skb,
1795 struct flow_dissector_key_enc_opts *key_opts,
1796 struct flow_dissector_key_enc_opts *msk_opts)
1797{
1798 int err;
1799
1800 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
1801 if (err)
1802 return err;
1803
1804 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
1805}
1806
f5749081
JP		 1807static int fl_dump_key(struct sk_buff *skb, struct net *net,
1808 struct fl_flow_key *key, struct fl_flow_key *mask)
77b9900e 1809{
77b9900e
JP		 1810 if (mask->indev_ifindex) {
1811 struct net_device *dev;
1812
1813 dev = __dev_get_by_index(net, key->indev_ifindex);
1814 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
1815 goto nla_put_failure;
1816 }
1817
1818 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1819 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1820 sizeof(key->eth.dst)) ||
1821 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1822 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1823 sizeof(key->eth.src)) ||
1824 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
1825 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
1826 sizeof(key->basic.n_proto)))
1827 goto nla_put_failure;
9399ae9a 1828
a577d8f7
BL		 1829 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
1830 goto nla_put_failure;
1831
d64efd09
JL		 1832 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
1833 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
9399ae9a
HHZ		 1834 goto nla_put_failure;
1835
d64efd09
JL		 1836 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
1837 TCA_FLOWER_KEY_CVLAN_PRIO,
1838 &key->cvlan, &mask->cvlan) ||
1839 (mask->cvlan.vlan_tpid &&
158abbf1
JL		 1840 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1841 key->cvlan.vlan_tpid)))
d3069512
JL		 1842 goto nla_put_failure;
1843
5e9a0fe4
JL		 1844 if (mask->basic.n_proto) {
1845 if (mask->cvlan.vlan_tpid) {
1846 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1847 key->basic.n_proto))
1848 goto nla_put_failure;
1849 } else if (mask->vlan.vlan_tpid) {
1850 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1851 key->basic.n_proto))
1852 goto nla_put_failure;
1853 }
d64efd09
JL		 1854 }
1855
77b9900e
JP		 1856 if ((key->basic.n_proto == htons(ETH_P_IP) ||
1857 key->basic.n_proto == htons(ETH_P_IPV6)) &&
4d80cc0a 1858 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
77b9900e 1859 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
4d80cc0a 1860 sizeof(key->basic.ip_proto)) ||
0e2c17b6 1861 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
77b9900e
JP		 1862 goto nla_put_failure;
1863
c3f83241 1864 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
77b9900e
JP		 1865 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1866 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1867 sizeof(key->ipv4.src)) ||
1868 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1869 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1870 sizeof(key->ipv4.dst))))
1871 goto nla_put_failure;
c3f83241 1872 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
77b9900e
JP		 1873 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1874 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1875 sizeof(key->ipv6.src)) ||
1876 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1877 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1878 sizeof(key->ipv6.dst))))
1879 goto nla_put_failure;
1880
1881 if (key->basic.ip_proto == IPPROTO_TCP &&
1882 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 1883 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 1884 sizeof(key->tp.src)) ||
1885 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 1886 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
fdfc7dd6
JP		 1887 sizeof(key->tp.dst)) ||
1888 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1889 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1890 sizeof(key->tcp.flags))))
77b9900e
JP		 1891 goto nla_put_failure;
1892 else if (key->basic.ip_proto == IPPROTO_UDP &&
1893 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 1894 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 1895 sizeof(key->tp.src)) ||
1896 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 1897 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
5976c5f4
SH		 1898 sizeof(key->tp.dst))))
1899 goto nla_put_failure;
1900 else if (key->basic.ip_proto == IPPROTO_SCTP &&
1901 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1902 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1903 sizeof(key->tp.src)) ||
1904 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1905 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
77b9900e
JP		 1906 sizeof(key->tp.dst))))
1907 goto nla_put_failure;
7b684884
SH		 1908 else if (key->basic.n_proto == htons(ETH_P_IP) &&
1909 key->basic.ip_proto == IPPROTO_ICMP &&
1910 (fl_dump_key_val(skb, &key->icmp.type,
1911 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
1912 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1913 sizeof(key->icmp.type)) ||
1914 fl_dump_key_val(skb, &key->icmp.code,
1915 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
1916 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1917 sizeof(key->icmp.code))))
1918 goto nla_put_failure;
1919 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1920 key->basic.ip_proto == IPPROTO_ICMPV6 &&
1921 (fl_dump_key_val(skb, &key->icmp.type,
1922 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
1923 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1924 sizeof(key->icmp.type)) ||
1925 fl_dump_key_val(skb, &key->icmp.code,
1926 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
1927 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1928 sizeof(key->icmp.code))))
1929 goto nla_put_failure;
99d31326
SH		 1930 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
1931 key->basic.n_proto == htons(ETH_P_RARP)) &&
1932 (fl_dump_key_val(skb, &key->arp.sip,
1933 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
1934 TCA_FLOWER_KEY_ARP_SIP_MASK,
1935 sizeof(key->arp.sip)) ||
1936 fl_dump_key_val(skb, &key->arp.tip,
1937 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
1938 TCA_FLOWER_KEY_ARP_TIP_MASK,
1939 sizeof(key->arp.tip)) ||
1940 fl_dump_key_val(skb, &key->arp.op,
1941 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
1942 TCA_FLOWER_KEY_ARP_OP_MASK,
1943 sizeof(key->arp.op)) ||
1944 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1945 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1946 sizeof(key->arp.sha)) ||
1947 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1948 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1949 sizeof(key->arp.tha))))
1950 goto nla_put_failure;
77b9900e 1951
5c72299f
AN		 1952 if ((key->basic.ip_proto == IPPROTO_TCP ||
1953 key->basic.ip_proto == IPPROTO_UDP ||
1954 key->basic.ip_proto == IPPROTO_SCTP) &&
1955 fl_dump_key_port_range(skb, key, mask))
1956 goto nla_put_failure;
1957
bc3103f1
AV		 1958 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
1959 (fl_dump_key_val(skb, &key->enc_ipv4.src,
1960 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
1961 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1962 sizeof(key->enc_ipv4.src)) ||
1963 fl_dump_key_val(skb, &key->enc_ipv4.dst,
1964 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
1965 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1966 sizeof(key->enc_ipv4.dst))))
1967 goto nla_put_failure;
1968 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
1969 (fl_dump_key_val(skb, &key->enc_ipv6.src,
1970 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
1971 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1972 sizeof(key->enc_ipv6.src)) ||
1973 fl_dump_key_val(skb, &key->enc_ipv6.dst,
1974 TCA_FLOWER_KEY_ENC_IPV6_DST,
1975 &mask->enc_ipv6.dst,
1976 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1977 sizeof(key->enc_ipv6.dst))))
1978 goto nla_put_failure;
1979
1980 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1981 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
f4d997fd
HHZ		 1982 sizeof(key->enc_key_id)) ||
1983 fl_dump_key_val(skb, &key->enc_tp.src,
1984 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1985 &mask->enc_tp.src,
1986 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1987 sizeof(key->enc_tp.src)) ||
1988 fl_dump_key_val(skb, &key->enc_tp.dst,
1989 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1990 &mask->enc_tp.dst,
1991 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
0e2c17b6 1992 sizeof(key->enc_tp.dst)) ||
0a6e7778
PJV		 1993 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
1994 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
bc3103f1
AV		 1995 goto nla_put_failure;
1996
faa3ffce
OG		 1997 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
1998 goto nla_put_failure;
1999
f5749081
JP		 2000 return 0;
2001
2002nla_put_failure:
2003 return -EMSGSIZE;
2004}
2005
2006static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
2007 struct sk_buff *skb, struct tcmsg *t)
2008{
2009 struct cls_fl_filter *f = fh;
2010 struct nlattr *nest;
2011 struct fl_flow_key *key, *mask;
2012
2013 if (!f)
2014 return skb->len;
2015
2016 t->tcm_handle = f->handle;
2017
2018 nest = nla_nest_start(skb, TCA_OPTIONS);
2019 if (!nest)
2020 goto nla_put_failure;
2021
2022 if (f->res.classid &&
2023 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
2024 goto nla_put_failure;
2025
2026 key = &f->key;
2027 mask = &f->mask->key;
2028
2029 if (fl_dump_key(skb, net, key, mask))
2030 goto nla_put_failure;
2031
2032 if (!tc_skip_hw(f->flags))
2033 fl_hw_update_stats(tp, f);
2034
749e6720
OG		 2035 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
2036 goto nla_put_failure;
e69985c6 2037
86c55361
VB		 2038 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
2039 goto nla_put_failure;
2040
77b9900e
JP		 2041 if (tcf_exts_dump(skb, &f->exts))
2042 goto nla_put_failure;
2043
2044 nla_nest_end(skb, nest);
2045
2046 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
2047 goto nla_put_failure;
2048
2049 return skb->len;
2050
2051nla_put_failure:
2052 nla_nest_cancel(skb, nest);
2053 return -1;
2054}
2055
b95ec7eb
JP		 2056static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
2057{
2058 struct fl_flow_tmplt *tmplt = tmplt_priv;
2059 struct fl_flow_key *key, *mask;
2060 struct nlattr *nest;
2061
2062 nest = nla_nest_start(skb, TCA_OPTIONS);
2063 if (!nest)
2064 goto nla_put_failure;
2065
2066 key = &tmplt->dummy_key;
2067 mask = &tmplt->mask;
2068
2069 if (fl_dump_key(skb, net, key, mask))
2070 goto nla_put_failure;
2071
2072 nla_nest_end(skb, nest);
2073
2074 return skb->len;
2075
2076nla_put_failure:
2077 nla_nest_cancel(skb, nest);
2078 return -EMSGSIZE;
2079}
2080
07d79fc7
CW		 2081static void fl_bind_class(void *fh, u32 classid, unsigned long cl)
2082{
2083 struct cls_fl_filter *f = fh;
2084
2085 if (f && f->res.classid == classid)
2086 f->res.class = cl;
2087}
2088
77b9900e
JP		 2089static struct tcf_proto_ops cls_fl_ops __read_mostly = {
2090 .kind = "flower",
2091 .classify = fl_classify,
2092 .init = fl_init,
2093 .destroy = fl_destroy,
2094 .get = fl_get,
2095 .change = fl_change,
2096 .delete = fl_delete,
2097 .walk = fl_walk,
31533cba 2098 .reoffload = fl_reoffload,
77b9900e 2099 .dump = fl_dump,
07d79fc7 2100 .bind_class = fl_bind_class,
b95ec7eb
JP		 2101 .tmplt_create = fl_tmplt_create,
2102 .tmplt_destroy = fl_tmplt_destroy,
2103 .tmplt_dump = fl_tmplt_dump,
77b9900e
JP		 2104 .owner = THIS_MODULE,
2105};
2106
2107static int __init cls_fl_init(void)
2108{
2109 return register_tcf_proto_ops(&cls_fl_ops);
2110}
2111
2112static void __exit cls_fl_exit(void)
2113{
2114 unregister_tcf_proto_ops(&cls_fl_ops);
2115}
2116
2117module_init(cls_fl_init);
2118module_exit(cls_fl_exit);
2119
2120MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
2121MODULE_DESCRIPTION("Flower classifier");
2122MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)