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net: sched: cls_flower: validate nested enc_opts_policy to avoid warning
[linux-2.6-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;
77b9900e
JP		 58} __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
59
60struct fl_flow_mask_range {
61 unsigned short int start;
62 unsigned short int end;
63};
64
65struct fl_flow_mask {
66 struct fl_flow_key key;
67 struct fl_flow_mask_range range;
05cd271f
PB		 68 struct rhash_head ht_node;
69 struct rhashtable ht;
70 struct rhashtable_params filter_ht_params;
71 struct flow_dissector dissector;
72 struct list_head filters;
44a5cd43 73 struct rcu_work rwork;
05cd271f 74 struct list_head list;
77b9900e
JP		 75};
76
b95ec7eb
JP		 77struct fl_flow_tmplt {
78 struct fl_flow_key dummy_key;
79 struct fl_flow_key mask;
80 struct flow_dissector dissector;
81 struct tcf_chain *chain;
82};
83
77b9900e
JP		 84struct cls_fl_head {
85 struct rhashtable ht;
05cd271f 86 struct list_head masks;
aaa908ff 87 struct rcu_work rwork;
c15ab236 88 struct idr handle_idr;
77b9900e
JP		 89};
90
91struct cls_fl_filter {
05cd271f 92 struct fl_flow_mask *mask;
77b9900e
JP		 93 struct rhash_head ht_node;
94 struct fl_flow_key mkey;
95 struct tcf_exts exts;
96 struct tcf_result res;
97 struct fl_flow_key key;
98 struct list_head list;
99 u32 handle;
e69985c6 100 u32 flags;
86c55361 101 u32 in_hw_count;
aaa908ff 102 struct rcu_work rwork;
7091d8c7 103 struct net_device *hw_dev;
77b9900e
JP		 104};
105
05cd271f
PB		 106static const struct rhashtable_params mask_ht_params = {
107 .key_offset = offsetof(struct fl_flow_mask, key),
108 .key_len = sizeof(struct fl_flow_key),
109 .head_offset = offsetof(struct fl_flow_mask, ht_node),
110 .automatic_shrinking = true,
111};
112
77b9900e
JP		 113static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
114{
115 return mask->range.end - mask->range.start;
116}
117
118static void fl_mask_update_range(struct fl_flow_mask *mask)
119{
120 const u8 *bytes = (const u8 *) &mask->key;
121 size_t size = sizeof(mask->key);
05cd271f 122 size_t i, first = 0, last;
77b9900e 123
05cd271f
PB		 124 for (i = 0; i < size; i++) {
125 if (bytes[i]) {
126 first = i;
127 break;
128 }
129 }
130 last = first;
131 for (i = size - 1; i != first; i--) {
77b9900e 132 if (bytes[i]) {
77b9900e 133 last = i;
05cd271f 134 break;
77b9900e
JP		 135 }
136 }
137 mask->range.start = rounddown(first, sizeof(long));
138 mask->range.end = roundup(last + 1, sizeof(long));
139}
140
141static void *fl_key_get_start(struct fl_flow_key *key,
142 const struct fl_flow_mask *mask)
143{
144 return (u8 *) key + mask->range.start;
145}
146
147static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
148 struct fl_flow_mask *mask)
149{
150 const long *lkey = fl_key_get_start(key, mask);
151 const long *lmask = fl_key_get_start(&mask->key, mask);
152 long *lmkey = fl_key_get_start(mkey, mask);
153 int i;
154
155 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
156 *lmkey++ = *lkey++ & *lmask++;
157}
158
b95ec7eb
JP		 159static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
160 struct fl_flow_mask *mask)
161{
162 const long *lmask = fl_key_get_start(&mask->key, mask);
163 const long *ltmplt;
164 int i;
165
166 if (!tmplt)
167 return true;
168 ltmplt = fl_key_get_start(&tmplt->mask, mask);
169 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
170 if (~*ltmplt++ & *lmask++)
171 return false;
172 }
173 return true;
174}
175
77b9900e
JP		 176static void fl_clear_masked_range(struct fl_flow_key *key,
177 struct fl_flow_mask *mask)
178{
179 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
180}
181
05cd271f 182static struct cls_fl_filter *fl_lookup(struct fl_flow_mask *mask,
a3308d8f
PB		 183 struct fl_flow_key *mkey)
184{
05cd271f
PB		 185 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
186 mask->filter_ht_params);
a3308d8f
PB		 187}
188
77b9900e
JP		 189static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
190 struct tcf_result *res)
191{
192 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
193 struct cls_fl_filter *f;
05cd271f 194 struct fl_flow_mask *mask;
77b9900e
JP		 195 struct fl_flow_key skb_key;
196 struct fl_flow_key skb_mkey;
197
05cd271f
PB		 198 list_for_each_entry_rcu(mask, &head->masks, list) {
199 fl_clear_masked_range(&skb_key, mask);
bc3103f1 200
05cd271f
PB		 201 skb_key.indev_ifindex = skb->skb_iif;
202 /* skb_flow_dissect() does not set n_proto in case an unknown
203 * protocol, so do it rather here.
204 */
205 skb_key.basic.n_proto = skb->protocol;
206 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
207 skb_flow_dissect(skb, &mask->dissector, &skb_key, 0);
77b9900e 208
05cd271f 209 fl_set_masked_key(&skb_mkey, &skb_key, mask);
77b9900e 210
05cd271f
PB		 211 f = fl_lookup(mask, &skb_mkey);
212 if (f && !tc_skip_sw(f->flags)) {
213 *res = f->res;
214 return tcf_exts_exec(skb, &f->exts, res);
215 }
77b9900e
JP		 216 }
217 return -1;
218}
219
220static int fl_init(struct tcf_proto *tp)
221{
222 struct cls_fl_head *head;
223
224 head = kzalloc(sizeof(*head), GFP_KERNEL);
225 if (!head)
226 return -ENOBUFS;
227
05cd271f 228 INIT_LIST_HEAD_RCU(&head->masks);
77b9900e 229 rcu_assign_pointer(tp->root, head);
c15ab236 230 idr_init(&head->handle_idr);
77b9900e 231
05cd271f
PB		 232 return rhashtable_init(&head->ht, &mask_ht_params);
233}
234
44a5cd43
PA		 235static void fl_mask_free(struct fl_flow_mask *mask)
236{
237 rhashtable_destroy(&mask->ht);
238 kfree(mask);
239}
240
241static void fl_mask_free_work(struct work_struct *work)
242{
243 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
244 struct fl_flow_mask, rwork);
245
246 fl_mask_free(mask);
247}
248
05cd271f
PB		 249static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask,
250 bool async)
251{
252 if (!list_empty(&mask->filters))
253 return false;
254
255 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
05cd271f
PB		 256 list_del_rcu(&mask->list);
257 if (async)
44a5cd43 258 tcf_queue_work(&mask->rwork, fl_mask_free_work);
05cd271f 259 else
44a5cd43 260 fl_mask_free(mask);
05cd271f
PB		 261
262 return true;
77b9900e
JP		 263}
264
0dadc117
CW		 265static void __fl_destroy_filter(struct cls_fl_filter *f)
266{
267 tcf_exts_destroy(&f->exts);
268 tcf_exts_put_net(&f->exts);
269 kfree(f);
270}
271
0552c8af 272static void fl_destroy_filter_work(struct work_struct *work)
77b9900e 273{
aaa908ff
CW		 274 struct cls_fl_filter *f = container_of(to_rcu_work(work),
275 struct cls_fl_filter, rwork);
77b9900e 276
0552c8af 277 rtnl_lock();
0dadc117 278 __fl_destroy_filter(f);
0552c8af
CW		 279 rtnl_unlock();
280}
281
1b0f8037
JK		 282static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
283 struct netlink_ext_ack *extack)
5b33f488 284{
de4784ca 285 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 286 struct tcf_block *block = tp->chain->block;
5b33f488 287
1b0f8037 288 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
de4784ca
JP		 289 cls_flower.command = TC_CLSFLOWER_DESTROY;
290 cls_flower.cookie = (unsigned long) f;
5b33f488 291
208c0f4b 292 tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
717503b9 293 &cls_flower, false);
caa72601 294 tcf_block_offload_dec(block, &f->flags);
5b33f488
AV		 295}
296
e8eb36cd 297static int fl_hw_replace_filter(struct tcf_proto *tp,
41002038
QM		 298 struct cls_fl_filter *f,
299 struct netlink_ext_ack *extack)
5b33f488 300{
de4784ca 301 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 302 struct tcf_block *block = tp->chain->block;
717503b9 303 bool skip_sw = tc_skip_sw(f->flags);
e8eb36cd 304 int err;
5b33f488 305
ea205940 306 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
de4784ca
JP		 307 cls_flower.command = TC_CLSFLOWER_REPLACE;
308 cls_flower.cookie = (unsigned long) f;
05cd271f
PB		 309 cls_flower.dissector = &f->mask->dissector;
310 cls_flower.mask = &f->mask->key;
de4784ca
JP		 311 cls_flower.key = &f->mkey;
312 cls_flower.exts = &f->exts;
384c181e 313 cls_flower.classid = f->res.classid;
5b33f488 314
208c0f4b 315 err = tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
717503b9
JP		 316 &cls_flower, skip_sw);
317 if (err < 0) {
1b0f8037 318 fl_hw_destroy_filter(tp, f, NULL);
e8eb36cd 319 return err;
717503b9 320 } else if (err > 0) {
31533cba 321 f->in_hw_count = err;
caa72601 322 tcf_block_offload_inc(block, &f->flags);
717503b9
JP		 323 }
324
325 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
326 return -EINVAL;
327
e8eb36cd 328 return 0;
5b33f488
AV		 329}
330
10cbc684
AV		 331static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
332{
de4784ca 333 struct tc_cls_flower_offload cls_flower = {};
208c0f4b 334 struct tcf_block *block = tp->chain->block;
10cbc684 335
ea205940 336 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
de4784ca
JP		 337 cls_flower.command = TC_CLSFLOWER_STATS;
338 cls_flower.cookie = (unsigned long) f;
339 cls_flower.exts = &f->exts;
384c181e 340 cls_flower.classid = f->res.classid;
10cbc684 341
208c0f4b 342 tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
717503b9 343 &cls_flower, false);
10cbc684
AV		 344}
345
05cd271f 346static bool __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
1b0f8037 347 struct netlink_ext_ack *extack)
13fa876e 348{
c15ab236 349 struct cls_fl_head *head = rtnl_dereference(tp->root);
05cd271f
PB		 350 bool async = tcf_exts_get_net(&f->exts);
351 bool last;
c15ab236 352
9c160941 353 idr_remove(&head->handle_idr, f->handle);
13fa876e 354 list_del_rcu(&f->list);
05cd271f 355 last = fl_mask_put(head, f->mask, async);
79685219 356 if (!tc_skip_hw(f->flags))
1b0f8037 357 fl_hw_destroy_filter(tp, f, extack);
13fa876e 358 tcf_unbind_filter(tp, &f->res);
05cd271f 359 if (async)
aaa908ff 360 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
0dadc117
CW		 361 else
362 __fl_destroy_filter(f);
05cd271f
PB		 363
364 return last;
13fa876e
RD		 365}
366
d9363774
DB		 367static void fl_destroy_sleepable(struct work_struct *work)
368{
aaa908ff
CW		 369 struct cls_fl_head *head = container_of(to_rcu_work(work),
370 struct cls_fl_head,
371 rwork);
de9dc650
PB		 372
373 rhashtable_destroy(&head->ht);
d9363774
DB		 374 kfree(head);
375 module_put(THIS_MODULE);
376}
377
715df5ec 378static void fl_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
77b9900e
JP		 379{
380 struct cls_fl_head *head = rtnl_dereference(tp->root);
05cd271f 381 struct fl_flow_mask *mask, *next_mask;
77b9900e
JP		 382 struct cls_fl_filter *f, *next;
383
05cd271f
PB		 384 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
385 list_for_each_entry_safe(f, next, &mask->filters, list) {
386 if (__fl_delete(tp, f, extack))
387 break;
388 }
389 }
c15ab236 390 idr_destroy(&head->handle_idr);
d9363774
DB		 391
392 __module_get(THIS_MODULE);
aaa908ff 393 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
77b9900e
JP		 394}
395
8113c095 396static void *fl_get(struct tcf_proto *tp, u32 handle)
77b9900e
JP		 397{
398 struct cls_fl_head *head = rtnl_dereference(tp->root);
77b9900e 399
322d884b 400 return idr_find(&head->handle_idr, handle);
77b9900e
JP		 401}
402
403static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
404 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
405 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
406 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
407 .len = IFNAMSIZ },
408 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
409 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
410 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
411 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
412 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
413 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
414 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
415 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
416 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
417 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
418 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
419 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
420 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
421 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
422 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
423 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
b175c3a4
JHS		 424 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
425 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
9399ae9a
HHZ		 426 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
427 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
428 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
bc3103f1
AV		 429 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
430 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
431 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
432 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
433 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
434 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
435 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
436 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
437 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
aa72d708
OG		 438 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
439 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
440 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
441 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
5976c5f4
SH		 442 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
443 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
444 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
445 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
f4d997fd
HHZ		 446 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
447 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
448 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
449 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
faa3ffce
OG		 450 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
451 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
7b684884
SH		 452 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
453 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
454 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
455 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
456 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
457 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
458 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
459 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
99d31326
SH		 460 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
461 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
462 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
463 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
464 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
465 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
466 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
467 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
468 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
469 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
a577d8f7
BL		 470 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
471 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
472 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
473 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
fdfc7dd6
JP		 474 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
475 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
4d80cc0a
OG		 476 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
477 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
478 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
479 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
d64efd09
JL		 480 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
481 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
482 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
0e2c17b6
OG		 483 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
484 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
485 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
486 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
0a6e7778
PJV		 487 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
488 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
489};
490
491static const struct nla_policy
492enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
493 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
494};
495
496static const struct nla_policy
497geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
498 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
499 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
500 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
501 .len = 128 },
77b9900e
JP		 502};
503
504static void fl_set_key_val(struct nlattr **tb,
505 void *val, int val_type,
506 void *mask, int mask_type, int len)
507{
508 if (!tb[val_type])
509 return;
510 memcpy(val, nla_data(tb[val_type]), len);
511 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
512 memset(mask, 0xff, len);
513 else
514 memcpy(mask, nla_data(tb[mask_type]), len);
515}
516
1a7fca63
BL		 517static int fl_set_key_mpls(struct nlattr **tb,
518 struct flow_dissector_key_mpls *key_val,
519 struct flow_dissector_key_mpls *key_mask)
a577d8f7
BL		 520{
521 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
522 key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
523 key_mask->mpls_ttl = MPLS_TTL_MASK;
524 }
525 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
1a7fca63
BL		 526 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
527
528 if (bos & ~MPLS_BOS_MASK)
529 return -EINVAL;
530 key_val->mpls_bos = bos;
a577d8f7
BL		 531 key_mask->mpls_bos = MPLS_BOS_MASK;
532 }
533 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
1a7fca63
BL		 534 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
535
536 if (tc & ~MPLS_TC_MASK)
537 return -EINVAL;
538 key_val->mpls_tc = tc;
a577d8f7
BL		 539 key_mask->mpls_tc = MPLS_TC_MASK;
540 }
541 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
1a7fca63
BL		 542 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
543
544 if (label & ~MPLS_LABEL_MASK)
545 return -EINVAL;
546 key_val->mpls_label = label;
a577d8f7
BL		 547 key_mask->mpls_label = MPLS_LABEL_MASK;
548 }
1a7fca63 549 return 0;
a577d8f7
BL		 550}
551
9399ae9a 552static void fl_set_key_vlan(struct nlattr **tb,
aaab0834 553 __be16 ethertype,
d64efd09 554 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 555 struct flow_dissector_key_vlan *key_val,
556 struct flow_dissector_key_vlan *key_mask)
557{
558#define VLAN_PRIORITY_MASK 0x7
559
d64efd09 560 if (tb[vlan_id_key]) {
9399ae9a 561 key_val->vlan_id =
d64efd09 562 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
9399ae9a
HHZ		 563 key_mask->vlan_id = VLAN_VID_MASK;
564 }
d64efd09 565 if (tb[vlan_prio_key]) {
9399ae9a 566 key_val->vlan_priority =
d64efd09 567 nla_get_u8(tb[vlan_prio_key]) &
9399ae9a
HHZ		 568 VLAN_PRIORITY_MASK;
569 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
570 }
aaab0834
JL		 571 key_val->vlan_tpid = ethertype;
572 key_mask->vlan_tpid = cpu_to_be16(~0);
9399ae9a
HHZ		 573}
574
faa3ffce
OG		 575static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
576 u32 *dissector_key, u32 *dissector_mask,
577 u32 flower_flag_bit, u32 dissector_flag_bit)
578{
579 if (flower_mask & flower_flag_bit) {
580 *dissector_mask |= dissector_flag_bit;
581 if (flower_key & flower_flag_bit)
582 *dissector_key |= dissector_flag_bit;
583 }
584}
585
d9724772
OG		 586static int fl_set_key_flags(struct nlattr **tb,
587 u32 *flags_key, u32 *flags_mask)
faa3ffce
OG		 588{
589 u32 key, mask;
590
d9724772
OG		 591 /* mask is mandatory for flags */
592 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
593 return -EINVAL;
faa3ffce
OG		 594
595 key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
d9724772 596 mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
faa3ffce
OG		 597
598 *flags_key = 0;
599 *flags_mask = 0;
600
601 fl_set_key_flag(key, mask, flags_key, flags_mask,
602 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 603 fl_set_key_flag(key, mask, flags_key, flags_mask,
604 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
605 FLOW_DIS_FIRST_FRAG);
d9724772
OG		 606
607 return 0;
faa3ffce
OG		 608}
609
0e2c17b6 610static void fl_set_key_ip(struct nlattr **tb, bool encap,
4d80cc0a
OG		 611 struct flow_dissector_key_ip *key,
612 struct flow_dissector_key_ip *mask)
613{
0e2c17b6
OG		 614 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
615 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
616 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
617 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
4d80cc0a 618
0e2c17b6
OG		 619 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
620 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
4d80cc0a
OG		 621}
622
0a6e7778
PJV		 623static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
624 int depth, int option_len,
625 struct netlink_ext_ack *extack)
626{
627 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
628 struct nlattr *class = NULL, *type = NULL, *data = NULL;
629 struct geneve_opt *opt;
630 int err, data_len = 0;
631
632 if (option_len > sizeof(struct geneve_opt))
633 data_len = option_len - sizeof(struct geneve_opt);
634
635 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
636 memset(opt, 0xff, option_len);
637 opt->length = data_len / 4;
638 opt->r1 = 0;
639 opt->r2 = 0;
640 opt->r3 = 0;
641
642 /* If no mask has been prodived we assume an exact match. */
643 if (!depth)
644 return sizeof(struct geneve_opt) + data_len;
645
646 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
647 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
648 return -EINVAL;
649 }
650
651 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
652 nla, geneve_opt_policy, extack);
653 if (err < 0)
654 return err;
655
656 /* We are not allowed to omit any of CLASS, TYPE or DATA
657 * fields from the key.
658 */
659 if (!option_len &&
660 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
661 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
662 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
663 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
664 return -EINVAL;
665 }
666
667 /* Omitting any of CLASS, TYPE or DATA fields is allowed
668 * for the mask.
669 */
670 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
671 int new_len = key->enc_opts.len;
672
673 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
674 data_len = nla_len(data);
675 if (data_len < 4) {
676 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
677 return -ERANGE;
678 }
679 if (data_len % 4) {
680 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
681 return -ERANGE;
682 }
683
684 new_len += sizeof(struct geneve_opt) + data_len;
685 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
686 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
687 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
688 return -ERANGE;
689 }
690 opt->length = data_len / 4;
691 memcpy(opt->opt_data, nla_data(data), data_len);
692 }
693
694 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
695 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
696 opt->opt_class = nla_get_be16(class);
697 }
698
699 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
700 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
701 opt->type = nla_get_u8(type);
702 }
703
704 return sizeof(struct geneve_opt) + data_len;
705}
706
707static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
708 struct fl_flow_key *mask,
709 struct netlink_ext_ack *extack)
710{
711 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
63c82997
JK		 712 int err, option_len, key_depth, msk_depth = 0;
713
714 err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS],
715 TCA_FLOWER_KEY_ENC_OPTS_MAX,
716 enc_opts_policy, extack);
717 if (err)
718 return err;
0a6e7778
PJV		 719
720 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
721
722 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
63c82997
JK		 723 err = nla_validate_nested(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
724 TCA_FLOWER_KEY_ENC_OPTS_MAX,
725 enc_opts_policy, extack);
726 if (err)
727 return err;
728
0a6e7778
PJV		 729 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
730 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
731 }
732
733 nla_for_each_attr(nla_opt_key, nla_enc_key,
734 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
735 switch (nla_type(nla_opt_key)) {
736 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
737 option_len = 0;
738 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
739 option_len = fl_set_geneve_opt(nla_opt_key, key,
740 key_depth, option_len,
741 extack);
742 if (option_len < 0)
743 return option_len;
744
745 key->enc_opts.len += option_len;
746 /* At the same time we need to parse through the mask
747 * in order to verify exact and mask attribute lengths.
748 */
749 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
750 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
751 msk_depth, option_len,
752 extack);
753 if (option_len < 0)
754 return option_len;
755
756 mask->enc_opts.len += option_len;
757 if (key->enc_opts.len != mask->enc_opts.len) {
758 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
759 return -EINVAL;
760 }
761
762 if (msk_depth)
763 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
764 break;
765 default:
766 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
767 return -EINVAL;
768 }
769 }
770
771 return 0;
772}
773
77b9900e 774static int fl_set_key(struct net *net, struct nlattr **tb,
1057c55f
AA		 775 struct fl_flow_key *key, struct fl_flow_key *mask,
776 struct netlink_ext_ack *extack)
77b9900e 777{
9399ae9a 778 __be16 ethertype;
d9724772 779 int ret = 0;
dd3aa3b5 780#ifdef CONFIG_NET_CLS_IND
77b9900e 781 if (tb[TCA_FLOWER_INDEV]) {
1057c55f 782 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
77b9900e
JP		 783 if (err < 0)
784 return err;
785 key->indev_ifindex = err;
786 mask->indev_ifindex = 0xffffffff;
787 }
dd3aa3b5 788#endif
77b9900e
JP		 789
790 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
791 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
792 sizeof(key->eth.dst));
793 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
794 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
795 sizeof(key->eth.src));
66530bdf 796
0b498a52 797 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
9399ae9a
HHZ		 798 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
799
aaab0834 800 if (eth_type_vlan(ethertype)) {
d64efd09
JL		 801 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
802 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan,
803 &mask->vlan);
804
5e9a0fe4
JL		 805 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
806 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
807 if (eth_type_vlan(ethertype)) {
808 fl_set_key_vlan(tb, ethertype,
809 TCA_FLOWER_KEY_CVLAN_ID,
810 TCA_FLOWER_KEY_CVLAN_PRIO,
811 &key->cvlan, &mask->cvlan);
812 fl_set_key_val(tb, &key->basic.n_proto,
813 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
814 &mask->basic.n_proto,
815 TCA_FLOWER_UNSPEC,
816 sizeof(key->basic.n_proto));
817 } else {
818 key->basic.n_proto = ethertype;
819 mask->basic.n_proto = cpu_to_be16(~0);
820 }
d64efd09 821 }
0b498a52
AB		 822 } else {
823 key->basic.n_proto = ethertype;
824 mask->basic.n_proto = cpu_to_be16(~0);
825 }
9399ae9a 826 }
66530bdf 827
77b9900e
JP		 828 if (key->basic.n_proto == htons(ETH_P_IP) ||
829 key->basic.n_proto == htons(ETH_P_IPV6)) {
830 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
831 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
832 sizeof(key->basic.ip_proto));
0e2c17b6 833 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
77b9900e 834 }
66530bdf
JHS		 835
836 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
837 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 838 mask->control.addr_type = ~0;
77b9900e
JP		 839 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
840 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
841 sizeof(key->ipv4.src));
842 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
843 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
844 sizeof(key->ipv4.dst));
66530bdf
JHS		 845 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
846 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 847 mask->control.addr_type = ~0;
77b9900e
JP		 848 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
849 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
850 sizeof(key->ipv6.src));
851 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
852 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
853 sizeof(key->ipv6.dst));
854 }
66530bdf 855
77b9900e
JP		 856 if (key->basic.ip_proto == IPPROTO_TCP) {
857 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 858 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 859 sizeof(key->tp.src));
860 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 861 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
77b9900e 862 sizeof(key->tp.dst));
fdfc7dd6
JP		 863 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
864 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
865 sizeof(key->tcp.flags));
77b9900e
JP		 866 } else if (key->basic.ip_proto == IPPROTO_UDP) {
867 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 868 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 869 sizeof(key->tp.src));
870 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 871 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
77b9900e 872 sizeof(key->tp.dst));
5976c5f4
SH		 873 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
874 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
875 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
876 sizeof(key->tp.src));
877 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
878 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
879 sizeof(key->tp.dst));
7b684884
SH		 880 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
881 key->basic.ip_proto == IPPROTO_ICMP) {
882 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
883 &mask->icmp.type,
884 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
885 sizeof(key->icmp.type));
886 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
887 &mask->icmp.code,
888 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
889 sizeof(key->icmp.code));
890 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
891 key->basic.ip_proto == IPPROTO_ICMPV6) {
892 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
893 &mask->icmp.type,
894 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
895 sizeof(key->icmp.type));
040587af 896 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
7b684884 897 &mask->icmp.code,
040587af 898 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
7b684884 899 sizeof(key->icmp.code));
a577d8f7
BL		 900 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
901 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
1a7fca63
BL		 902 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls);
903 if (ret)
904 return ret;
99d31326
SH		 905 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
906 key->basic.n_proto == htons(ETH_P_RARP)) {
907 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
908 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
909 sizeof(key->arp.sip));
910 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
911 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
912 sizeof(key->arp.tip));
913 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
914 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
915 sizeof(key->arp.op));
916 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
917 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
918 sizeof(key->arp.sha));
919 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
920 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
921 sizeof(key->arp.tha));
77b9900e
JP		 922 }
923
bc3103f1
AV		 924 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
925 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
926 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
970bfcd0 927 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 928 fl_set_key_val(tb, &key->enc_ipv4.src,
929 TCA_FLOWER_KEY_ENC_IPV4_SRC,
930 &mask->enc_ipv4.src,
931 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
932 sizeof(key->enc_ipv4.src));
933 fl_set_key_val(tb, &key->enc_ipv4.dst,
934 TCA_FLOWER_KEY_ENC_IPV4_DST,
935 &mask->enc_ipv4.dst,
936 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
937 sizeof(key->enc_ipv4.dst));
938 }
939
940 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
941 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
942 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
970bfcd0 943 mask->enc_control.addr_type = ~0;
bc3103f1
AV		 944 fl_set_key_val(tb, &key->enc_ipv6.src,
945 TCA_FLOWER_KEY_ENC_IPV6_SRC,
946 &mask->enc_ipv6.src,
947 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
948 sizeof(key->enc_ipv6.src));
949 fl_set_key_val(tb, &key->enc_ipv6.dst,
950 TCA_FLOWER_KEY_ENC_IPV6_DST,
951 &mask->enc_ipv6.dst,
952 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
953 sizeof(key->enc_ipv6.dst));
954 }
955
956 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 957 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
bc3103f1
AV		 958 sizeof(key->enc_key_id.keyid));
959
f4d997fd
HHZ		 960 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
961 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
962 sizeof(key->enc_tp.src));
963
964 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
965 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
966 sizeof(key->enc_tp.dst));
967
0e2c17b6
OG		 968 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
969
0a6e7778
PJV		 970 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
971 ret = fl_set_enc_opt(tb, key, mask, extack);
972 if (ret)
973 return ret;
974 }
975
d9724772
OG		 976 if (tb[TCA_FLOWER_KEY_FLAGS])
977 ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
faa3ffce 978
d9724772 979 return ret;
77b9900e
JP		 980}
981
05cd271f
PB		 982static void fl_mask_copy(struct fl_flow_mask *dst,
983 struct fl_flow_mask *src)
77b9900e 984{
05cd271f
PB		 985 const void *psrc = fl_key_get_start(&src->key, src);
986 void *pdst = fl_key_get_start(&dst->key, src);
77b9900e 987
05cd271f
PB		 988 memcpy(pdst, psrc, fl_mask_range(src));
989 dst->range = src->range;
77b9900e
JP		 990}
991
992static const struct rhashtable_params fl_ht_params = {
993 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
994 .head_offset = offsetof(struct cls_fl_filter, ht_node),
995 .automatic_shrinking = true,
996};
997
05cd271f 998static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
77b9900e 999{
05cd271f
PB		 1000 mask->filter_ht_params = fl_ht_params;
1001 mask->filter_ht_params.key_len = fl_mask_range(mask);
1002 mask->filter_ht_params.key_offset += mask->range.start;
77b9900e 1003
05cd271f 1004 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
77b9900e
JP		 1005}
1006
1007#define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
cb205a81 1008#define FL_KEY_MEMBER_SIZE(member) FIELD_SIZEOF(struct fl_flow_key, member)
77b9900e 1009
339ba878
HHZ		 1010#define FL_KEY_IS_MASKED(mask, member) \
1011 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1012 0, FL_KEY_MEMBER_SIZE(member)) \
77b9900e
JP		 1013
1014#define FL_KEY_SET(keys, cnt, id, member) \
1015 do { \
1016 keys[cnt].key_id = id; \
1017 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1018 cnt++; \
1019 } while(0);
1020
339ba878 1021#define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
77b9900e 1022 do { \
339ba878 1023 if (FL_KEY_IS_MASKED(mask, member)) \
77b9900e
JP		 1024 FL_KEY_SET(keys, cnt, id, member); \
1025 } while(0);
1026
33fb5cba
JP		 1027static void fl_init_dissector(struct flow_dissector *dissector,
1028 struct fl_flow_key *mask)
77b9900e
JP		 1029{
1030 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1031 size_t cnt = 0;
1032
42aecaa9 1033 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
77b9900e 1034 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
33fb5cba 1035 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1036 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
33fb5cba 1037 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1038 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
33fb5cba 1039 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1040 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
33fb5cba 1041 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
339ba878 1042 FLOW_DISSECTOR_KEY_PORTS, tp);
33fb5cba 1043 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
4d80cc0a 1044 FLOW_DISSECTOR_KEY_IP, ip);
33fb5cba 1045 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
fdfc7dd6 1046 FLOW_DISSECTOR_KEY_TCP, tcp);
33fb5cba 1047 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
7b684884 1048 FLOW_DISSECTOR_KEY_ICMP, icmp);
33fb5cba 1049 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
99d31326 1050 FLOW_DISSECTOR_KEY_ARP, arp);
33fb5cba 1051 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
a577d8f7 1052 FLOW_DISSECTOR_KEY_MPLS, mpls);
33fb5cba 1053 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
9399ae9a 1054 FLOW_DISSECTOR_KEY_VLAN, vlan);
33fb5cba 1055 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
d64efd09 1056 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
33fb5cba 1057 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1058 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
33fb5cba 1059 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1060 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
33fb5cba 1061 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
519d1052 1062 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
33fb5cba
JP		 1063 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1064 FL_KEY_IS_MASKED(mask, enc_ipv6))
519d1052
HHZ		 1065 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1066 enc_control);
33fb5cba 1067 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
f4d997fd 1068 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
33fb5cba 1069 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
0e2c17b6 1070 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
0a6e7778
PJV		 1071 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1072 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
77b9900e 1073
33fb5cba 1074 skb_flow_dissector_init(dissector, keys, cnt);
05cd271f
PB		 1075}
1076
1077static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1078 struct fl_flow_mask *mask)
1079{
1080 struct fl_flow_mask *newmask;
1081 int err;
1082
1083 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1084 if (!newmask)
1085 return ERR_PTR(-ENOMEM);
1086
1087 fl_mask_copy(newmask, mask);
1088
1089 err = fl_init_mask_hashtable(newmask);
1090 if (err)
1091 goto errout_free;
1092
33fb5cba 1093 fl_init_dissector(&newmask->dissector, &newmask->key);
05cd271f
PB		 1094
1095 INIT_LIST_HEAD_RCU(&newmask->filters);
1096
1097 err = rhashtable_insert_fast(&head->ht, &newmask->ht_node,
1098 mask_ht_params);
1099 if (err)
1100 goto errout_destroy;
1101
1102 list_add_tail_rcu(&newmask->list, &head->masks);
1103
1104 return newmask;
1105
1106errout_destroy:
1107 rhashtable_destroy(&newmask->ht);
1108errout_free:
1109 kfree(newmask);
1110
1111 return ERR_PTR(err);
77b9900e
JP		 1112}
1113
1114static int fl_check_assign_mask(struct cls_fl_head *head,
05cd271f
PB		 1115 struct cls_fl_filter *fnew,
1116 struct cls_fl_filter *fold,
77b9900e
JP		 1117 struct fl_flow_mask *mask)
1118{
05cd271f 1119 struct fl_flow_mask *newmask;
77b9900e 1120
05cd271f
PB		 1121 fnew->mask = rhashtable_lookup_fast(&head->ht, mask, mask_ht_params);
1122 if (!fnew->mask) {
1123 if (fold)
77b9900e 1124 return -EINVAL;
77b9900e 1125
05cd271f
PB		 1126 newmask = fl_create_new_mask(head, mask);
1127 if (IS_ERR(newmask))
1128 return PTR_ERR(newmask);
77b9900e 1129
05cd271f 1130 fnew->mask = newmask;
f6521c58 1131 } else if (fold && fold->mask != fnew->mask) {
05cd271f
PB		 1132 return -EINVAL;
1133 }
77b9900e
JP		 1134
1135 return 0;
1136}
1137
1138static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1139 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1140 unsigned long base, struct nlattr **tb,
50a56190 1141 struct nlattr *est, bool ovr,
b95ec7eb 1142 struct fl_flow_tmplt *tmplt,
50a56190 1143 struct netlink_ext_ack *extack)
77b9900e 1144{
77b9900e
JP		 1145 int err;
1146
50a56190 1147 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, extack);
77b9900e
JP		 1148 if (err < 0)
1149 return err;
1150
1151 if (tb[TCA_FLOWER_CLASSID]) {
1152 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
1153 tcf_bind_filter(tp, &f->res, base);
1154 }
1155
1057c55f 1156 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
77b9900e 1157 if (err)
45507529 1158 return err;
77b9900e
JP		 1159
1160 fl_mask_update_range(mask);
1161 fl_set_masked_key(&f->mkey, &f->key, mask);
1162
b95ec7eb
JP		 1163 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1164 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1165 return -EINVAL;
1166 }
1167
77b9900e 1168 return 0;
77b9900e
JP		 1169}
1170
77b9900e
JP		 1171static int fl_change(struct net *net, struct sk_buff *in_skb,
1172 struct tcf_proto *tp, unsigned long base,
1173 u32 handle, struct nlattr **tca,
7306db38 1174 void **arg, bool ovr, struct netlink_ext_ack *extack)
77b9900e
JP		 1175{
1176 struct cls_fl_head *head = rtnl_dereference(tp->root);
8113c095 1177 struct cls_fl_filter *fold = *arg;
77b9900e 1178 struct cls_fl_filter *fnew;
39b7b6a6 1179 struct nlattr **tb;
77b9900e
JP		 1180 struct fl_flow_mask mask = {};
1181 int err;
1182
1183 if (!tca[TCA_OPTIONS])
1184 return -EINVAL;
1185
39b7b6a6
AB		 1186 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1187 if (!tb)
1188 return -ENOBUFS;
1189
fceb6435
JB		 1190 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
1191 fl_policy, NULL);
77b9900e 1192 if (err < 0)
39b7b6a6 1193 goto errout_tb;
77b9900e 1194
39b7b6a6
AB		 1195 if (fold && handle && fold->handle != handle) {
1196 err = -EINVAL;
1197 goto errout_tb;
1198 }
77b9900e
JP		 1199
1200 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
39b7b6a6
AB		 1201 if (!fnew) {
1202 err = -ENOBUFS;
1203 goto errout_tb;
1204 }
77b9900e 1205
b9a24bb7
WC		 1206 err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0);
1207 if (err < 0)
1208 goto errout;
77b9900e
JP		 1209
1210 if (!handle) {
85bd0438
MW		 1211 handle = 1;
1212 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1213 INT_MAX, GFP_KERNEL);
1214 } else if (!fold) {
1215 /* user specifies a handle and it doesn't exist */
1216 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
1217 handle, GFP_KERNEL);
77b9900e 1218 }
85bd0438
MW		 1219 if (err)
1220 goto errout;
1221 fnew->handle = handle;
77b9900e 1222
e69985c6
AV		 1223 if (tb[TCA_FLOWER_FLAGS]) {
1224 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
1225
1226 if (!tc_flags_valid(fnew->flags)) {
1227 err = -EINVAL;
fe2502e4 1228 goto errout_idr;
e69985c6
AV		 1229 }
1230 }
5b33f488 1231
50a56190 1232 err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr,
b95ec7eb 1233 tp->chain->tmplt_priv, extack);
77b9900e 1234 if (err)
fe2502e4 1235 goto errout_idr;
77b9900e 1236
05cd271f 1237 err = fl_check_assign_mask(head, fnew, fold, &mask);
77b9900e 1238 if (err)
fe2502e4 1239 goto errout_idr;
77b9900e 1240
e8eb36cd 1241 if (!tc_skip_sw(fnew->flags)) {
05cd271f 1242 if (!fold && fl_lookup(fnew->mask, &fnew->mkey)) {
a3308d8f 1243 err = -EEXIST;
05cd271f 1244 goto errout_mask;
a3308d8f
PB		 1245 }
1246
05cd271f
PB		 1247 err = rhashtable_insert_fast(&fnew->mask->ht, &fnew->ht_node,
1248 fnew->mask->filter_ht_params);
e69985c6 1249 if (err)
05cd271f 1250 goto errout_mask;
e69985c6 1251 }
5b33f488 1252
79685219 1253 if (!tc_skip_hw(fnew->flags)) {
05cd271f 1254 err = fl_hw_replace_filter(tp, fnew, extack);
79685219 1255 if (err)
05cd271f 1256 goto errout_mask;
79685219 1257 }
5b33f488 1258
55593960
OG		 1259 if (!tc_in_hw(fnew->flags))
1260 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
1261
5b33f488 1262 if (fold) {
725cbb62 1263 if (!tc_skip_sw(fold->flags))
05cd271f
PB		 1264 rhashtable_remove_fast(&fold->mask->ht,
1265 &fold->ht_node,
1266 fold->mask->filter_ht_params);
79685219 1267 if (!tc_skip_hw(fold->flags))
1b0f8037 1268 fl_hw_destroy_filter(tp, fold, NULL);
5b33f488 1269 }
77b9900e 1270
8113c095 1271 *arg = fnew;
77b9900e
JP		 1272
1273 if (fold) {
234a4624 1274 idr_replace(&head->handle_idr, fnew, fnew->handle);
ff3532f2 1275 list_replace_rcu(&fold->list, &fnew->list);
77b9900e 1276 tcf_unbind_filter(tp, &fold->res);
0dadc117 1277 tcf_exts_get_net(&fold->exts);
aaa908ff 1278 tcf_queue_work(&fold->rwork, fl_destroy_filter_work);
77b9900e 1279 } else {
05cd271f 1280 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
77b9900e
JP		 1281 }
1282
39b7b6a6 1283 kfree(tb);
77b9900e
JP		 1284 return 0;
1285
05cd271f
PB		 1286errout_mask:
1287 fl_mask_put(head, fnew->mask, false);
1288
fe2502e4 1289errout_idr:
8258d2da 1290 if (!fold)
9c160941 1291 idr_remove(&head->handle_idr, fnew->handle);
77b9900e 1292errout:
b9a24bb7 1293 tcf_exts_destroy(&fnew->exts);
77b9900e 1294 kfree(fnew);
39b7b6a6
AB		 1295errout_tb:
1296 kfree(tb);
77b9900e
JP		 1297 return err;
1298}
1299
571acf21
AA		 1300static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
1301 struct netlink_ext_ack *extack)
77b9900e
JP		 1302{
1303 struct cls_fl_head *head = rtnl_dereference(tp->root);
8113c095 1304 struct cls_fl_filter *f = arg;
77b9900e 1305
725cbb62 1306 if (!tc_skip_sw(f->flags))
05cd271f
PB		 1307 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
1308 f->mask->filter_ht_params);
1b0f8037 1309 __fl_delete(tp, f, extack);
05cd271f 1310 *last = list_empty(&head->masks);
77b9900e
JP		 1311 return 0;
1312}
1313
1314static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg)
1315{
1316 struct cls_fl_head *head = rtnl_dereference(tp->root);
1317 struct cls_fl_filter *f;
05cd271f 1318
01683a14
VB		 1319 arg->count = arg->skip;
1320
1321 while ((f = idr_get_next_ul(&head->handle_idr,
1322 &arg->cookie)) != NULL) {
1323 if (arg->fn(tp, f, arg) < 0) {
1324 arg->stop = 1;
1325 break;
05cd271f 1326 }
01683a14
VB		 1327 arg->cookie = f->handle + 1;
1328 arg->count++;
77b9900e
JP		 1329 }
1330}
1331
31533cba
JH		 1332static int fl_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
1333 void *cb_priv, struct netlink_ext_ack *extack)
1334{
1335 struct cls_fl_head *head = rtnl_dereference(tp->root);
1336 struct tc_cls_flower_offload cls_flower = {};
1337 struct tcf_block *block = tp->chain->block;
1338 struct fl_flow_mask *mask;
1339 struct cls_fl_filter *f;
1340 int err;
1341
1342 list_for_each_entry(mask, &head->masks, list) {
1343 list_for_each_entry(f, &mask->filters, list) {
1344 if (tc_skip_hw(f->flags))
1345 continue;
1346
1347 tc_cls_common_offload_init(&cls_flower.common, tp,
1348 f->flags, extack);
1349 cls_flower.command = add ?
1350 TC_CLSFLOWER_REPLACE : TC_CLSFLOWER_DESTROY;
1351 cls_flower.cookie = (unsigned long)f;
1352 cls_flower.dissector = &mask->dissector;
9ca61630
VB		 1353 cls_flower.mask = &mask->key;
1354 cls_flower.key = &f->mkey;
31533cba
JH		 1355 cls_flower.exts = &f->exts;
1356 cls_flower.classid = f->res.classid;
1357
1358 err = cb(TC_SETUP_CLSFLOWER, &cls_flower, cb_priv);
1359 if (err) {
1360 if (add && tc_skip_sw(f->flags))
1361 return err;
1362 continue;
1363 }
1364
1365 tc_cls_offload_cnt_update(block, &f->in_hw_count,
1366 &f->flags, add);
1367 }
1368 }
1369
1370 return 0;
1371}
1372
34738452
JP		 1373static void fl_hw_create_tmplt(struct tcf_chain *chain,
1374 struct fl_flow_tmplt *tmplt)
1375{
1376 struct tc_cls_flower_offload cls_flower = {};
1377 struct tcf_block *block = chain->block;
1378 struct tcf_exts dummy_exts = { 0, };
1379
1380 cls_flower.common.chain_index = chain->index;
1381 cls_flower.command = TC_CLSFLOWER_TMPLT_CREATE;
1382 cls_flower.cookie = (unsigned long) tmplt;
1383 cls_flower.dissector = &tmplt->dissector;
1384 cls_flower.mask = &tmplt->mask;
1385 cls_flower.key = &tmplt->dummy_key;
1386 cls_flower.exts = &dummy_exts;
1387
1388 /* We don't care if driver (any of them) fails to handle this
1389 * call. It serves just as a hint for it.
1390 */
1391 tc_setup_cb_call(block, NULL, TC_SETUP_CLSFLOWER,
1392 &cls_flower, false);
1393}
1394
1395static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
1396 struct fl_flow_tmplt *tmplt)
1397{
1398 struct tc_cls_flower_offload cls_flower = {};
1399 struct tcf_block *block = chain->block;
1400
1401 cls_flower.common.chain_index = chain->index;
1402 cls_flower.command = TC_CLSFLOWER_TMPLT_DESTROY;
1403 cls_flower.cookie = (unsigned long) tmplt;
1404
1405 tc_setup_cb_call(block, NULL, TC_SETUP_CLSFLOWER,
1406 &cls_flower, false);
1407}
1408
b95ec7eb
JP		 1409static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
1410 struct nlattr **tca,
1411 struct netlink_ext_ack *extack)
1412{
1413 struct fl_flow_tmplt *tmplt;
1414 struct nlattr **tb;
1415 int err;
1416
1417 if (!tca[TCA_OPTIONS])
1418 return ERR_PTR(-EINVAL);
1419
1420 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1421 if (!tb)
1422 return ERR_PTR(-ENOBUFS);
1423 err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS],
1424 fl_policy, NULL);
1425 if (err)
1426 goto errout_tb;
1427
1428 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
1cbc36a5
DC		 1429 if (!tmplt) {
1430 err = -ENOMEM;
b95ec7eb 1431 goto errout_tb;
1cbc36a5 1432 }
b95ec7eb
JP		 1433 tmplt->chain = chain;
1434 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
1435 if (err)
1436 goto errout_tmplt;
1437 kfree(tb);
1438
1439 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
1440
34738452
JP		 1441 fl_hw_create_tmplt(chain, tmplt);
1442
b95ec7eb
JP		 1443 return tmplt;
1444
1445errout_tmplt:
1446 kfree(tmplt);
1447errout_tb:
1448 kfree(tb);
1449 return ERR_PTR(err);
1450}
1451
ec3ed293
VB		 1452static void fl_tmplt_destroy(void *tmplt_priv)
1453{
1454 struct fl_flow_tmplt *tmplt = tmplt_priv;
1455
95278dda
CW		 1456 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
1457 kfree(tmplt);
ec3ed293
VB		 1458}
1459
77b9900e
JP		 1460static int fl_dump_key_val(struct sk_buff *skb,
1461 void *val, int val_type,
1462 void *mask, int mask_type, int len)
1463{
1464 int err;
1465
1466 if (!memchr_inv(mask, 0, len))
1467 return 0;
1468 err = nla_put(skb, val_type, len, val);
1469 if (err)
1470 return err;
1471 if (mask_type != TCA_FLOWER_UNSPEC) {
1472 err = nla_put(skb, mask_type, len, mask);
1473 if (err)
1474 return err;
1475 }
1476 return 0;
1477}
1478
a577d8f7
BL		 1479static int fl_dump_key_mpls(struct sk_buff *skb,
1480 struct flow_dissector_key_mpls *mpls_key,
1481 struct flow_dissector_key_mpls *mpls_mask)
1482{
1483 int err;
1484
1485 if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask)))
1486 return 0;
1487 if (mpls_mask->mpls_ttl) {
1488 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
1489 mpls_key->mpls_ttl);
1490 if (err)
1491 return err;
1492 }
1493 if (mpls_mask->mpls_tc) {
1494 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
1495 mpls_key->mpls_tc);
1496 if (err)
1497 return err;
1498 }
1499 if (mpls_mask->mpls_label) {
1500 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
1501 mpls_key->mpls_label);
1502 if (err)
1503 return err;
1504 }
1505 if (mpls_mask->mpls_bos) {
1506 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
1507 mpls_key->mpls_bos);
1508 if (err)
1509 return err;
1510 }
1511 return 0;
1512}
1513
0e2c17b6 1514static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
4d80cc0a
OG		 1515 struct flow_dissector_key_ip *key,
1516 struct flow_dissector_key_ip *mask)
1517{
0e2c17b6
OG		 1518 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1519 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1520 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1521 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
1522
1523 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
1524 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
4d80cc0a
OG		 1525 return -1;
1526
1527 return 0;
1528}
1529
9399ae9a 1530static int fl_dump_key_vlan(struct sk_buff *skb,
d64efd09 1531 int vlan_id_key, int vlan_prio_key,
9399ae9a
HHZ		 1532 struct flow_dissector_key_vlan *vlan_key,
1533 struct flow_dissector_key_vlan *vlan_mask)
1534{
1535 int err;
1536
1537 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
1538 return 0;
1539 if (vlan_mask->vlan_id) {
d64efd09 1540 err = nla_put_u16(skb, vlan_id_key,
9399ae9a
HHZ		 1541 vlan_key->vlan_id);
1542 if (err)
1543 return err;
1544 }
1545 if (vlan_mask->vlan_priority) {
d64efd09 1546 err = nla_put_u8(skb, vlan_prio_key,
9399ae9a
HHZ		 1547 vlan_key->vlan_priority);
1548 if (err)
1549 return err;
1550 }
1551 return 0;
1552}
1553
faa3ffce
OG		 1554static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
1555 u32 *flower_key, u32 *flower_mask,
1556 u32 flower_flag_bit, u32 dissector_flag_bit)
1557{
1558 if (dissector_mask & dissector_flag_bit) {
1559 *flower_mask |= flower_flag_bit;
1560 if (dissector_key & dissector_flag_bit)
1561 *flower_key |= flower_flag_bit;
1562 }
1563}
1564
1565static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
1566{
1567 u32 key, mask;
1568 __be32 _key, _mask;
1569 int err;
1570
1571 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
1572 return 0;
1573
1574 key = 0;
1575 mask = 0;
1576
1577 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1578 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
459d153d
PJV		 1579 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
1580 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1581 FLOW_DIS_FIRST_FRAG);
faa3ffce
OG		 1582
1583 _key = cpu_to_be32(key);
1584 _mask = cpu_to_be32(mask);
1585
1586 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
1587 if (err)
1588 return err;
1589
1590 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
1591}
1592
0a6e7778
PJV		 1593static int fl_dump_key_geneve_opt(struct sk_buff *skb,
1594 struct flow_dissector_key_enc_opts *enc_opts)
1595{
1596 struct geneve_opt *opt;
1597 struct nlattr *nest;
1598 int opt_off = 0;
1599
1600 nest = nla_nest_start(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
1601 if (!nest)
1602 goto nla_put_failure;
1603
1604 while (enc_opts->len > opt_off) {
1605 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
1606
1607 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
1608 opt->opt_class))
1609 goto nla_put_failure;
1610 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
1611 opt->type))
1612 goto nla_put_failure;
1613 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
1614 opt->length * 4, opt->opt_data))
1615 goto nla_put_failure;
1616
1617 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
1618 }
1619 nla_nest_end(skb, nest);
1620 return 0;
1621
1622nla_put_failure:
1623 nla_nest_cancel(skb, nest);
1624 return -EMSGSIZE;
1625}
1626
1627static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
1628 struct flow_dissector_key_enc_opts *enc_opts)
1629{
1630 struct nlattr *nest;
1631 int err;
1632
1633 if (!enc_opts->len)
1634 return 0;
1635
1636 nest = nla_nest_start(skb, enc_opt_type);
1637 if (!nest)
1638 goto nla_put_failure;
1639
1640 switch (enc_opts->dst_opt_type) {
1641 case TUNNEL_GENEVE_OPT:
1642 err = fl_dump_key_geneve_opt(skb, enc_opts);
1643 if (err)
1644 goto nla_put_failure;
1645 break;
1646 default:
1647 goto nla_put_failure;
1648 }
1649 nla_nest_end(skb, nest);
1650 return 0;
1651
1652nla_put_failure:
1653 nla_nest_cancel(skb, nest);
1654 return -EMSGSIZE;
1655}
1656
1657static int fl_dump_key_enc_opt(struct sk_buff *skb,
1658 struct flow_dissector_key_enc_opts *key_opts,
1659 struct flow_dissector_key_enc_opts *msk_opts)
1660{
1661 int err;
1662
1663 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
1664 if (err)
1665 return err;
1666
1667 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
1668}
1669
f5749081
JP		 1670static int fl_dump_key(struct sk_buff *skb, struct net *net,
1671 struct fl_flow_key *key, struct fl_flow_key *mask)
77b9900e 1672{
77b9900e
JP		 1673 if (mask->indev_ifindex) {
1674 struct net_device *dev;
1675
1676 dev = __dev_get_by_index(net, key->indev_ifindex);
1677 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
1678 goto nla_put_failure;
1679 }
1680
1681 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1682 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1683 sizeof(key->eth.dst)) ||
1684 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1685 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1686 sizeof(key->eth.src)) ||
1687 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
1688 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
1689 sizeof(key->basic.n_proto)))
1690 goto nla_put_failure;
9399ae9a 1691
a577d8f7
BL		 1692 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
1693 goto nla_put_failure;
1694
d64efd09
JL		 1695 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
1696 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
9399ae9a
HHZ		 1697 goto nla_put_failure;
1698
d64efd09
JL		 1699 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
1700 TCA_FLOWER_KEY_CVLAN_PRIO,
1701 &key->cvlan, &mask->cvlan) ||
1702 (mask->cvlan.vlan_tpid &&
158abbf1
JL		 1703 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1704 key->cvlan.vlan_tpid)))
d3069512
JL		 1705 goto nla_put_failure;
1706
5e9a0fe4
JL		 1707 if (mask->basic.n_proto) {
1708 if (mask->cvlan.vlan_tpid) {
1709 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1710 key->basic.n_proto))
1711 goto nla_put_failure;
1712 } else if (mask->vlan.vlan_tpid) {
1713 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1714 key->basic.n_proto))
1715 goto nla_put_failure;
1716 }
d64efd09
JL		 1717 }
1718
77b9900e
JP		 1719 if ((key->basic.n_proto == htons(ETH_P_IP) ||
1720 key->basic.n_proto == htons(ETH_P_IPV6)) &&
4d80cc0a 1721 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
77b9900e 1722 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
4d80cc0a 1723 sizeof(key->basic.ip_proto)) ||
0e2c17b6 1724 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
77b9900e
JP		 1725 goto nla_put_failure;
1726
c3f83241 1727 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
77b9900e
JP		 1728 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1729 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1730 sizeof(key->ipv4.src)) ||
1731 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1732 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1733 sizeof(key->ipv4.dst))))
1734 goto nla_put_failure;
c3f83241 1735 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
77b9900e
JP		 1736 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1737 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1738 sizeof(key->ipv6.src)) ||
1739 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1740 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1741 sizeof(key->ipv6.dst))))
1742 goto nla_put_failure;
1743
1744 if (key->basic.ip_proto == IPPROTO_TCP &&
1745 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
aa72d708 1746 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
77b9900e
JP		 1747 sizeof(key->tp.src)) ||
1748 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
aa72d708 1749 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
fdfc7dd6
JP		 1750 sizeof(key->tp.dst)) ||
1751 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1752 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1753 sizeof(key->tcp.flags))))
77b9900e
JP		 1754 goto nla_put_failure;
1755 else if (key->basic.ip_proto == IPPROTO_UDP &&
1756 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
aa72d708 1757 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
77b9900e
JP		 1758 sizeof(key->tp.src)) ||
1759 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
aa72d708 1760 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
5976c5f4
SH		 1761 sizeof(key->tp.dst))))
1762 goto nla_put_failure;
1763 else if (key->basic.ip_proto == IPPROTO_SCTP &&
1764 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1765 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1766 sizeof(key->tp.src)) ||
1767 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1768 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
77b9900e
JP		 1769 sizeof(key->tp.dst))))
1770 goto nla_put_failure;
7b684884
SH		 1771 else if (key->basic.n_proto == htons(ETH_P_IP) &&
1772 key->basic.ip_proto == IPPROTO_ICMP &&
1773 (fl_dump_key_val(skb, &key->icmp.type,
1774 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
1775 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1776 sizeof(key->icmp.type)) ||
1777 fl_dump_key_val(skb, &key->icmp.code,
1778 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
1779 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1780 sizeof(key->icmp.code))))
1781 goto nla_put_failure;
1782 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1783 key->basic.ip_proto == IPPROTO_ICMPV6 &&
1784 (fl_dump_key_val(skb, &key->icmp.type,
1785 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
1786 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1787 sizeof(key->icmp.type)) ||
1788 fl_dump_key_val(skb, &key->icmp.code,
1789 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
1790 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1791 sizeof(key->icmp.code))))
1792 goto nla_put_failure;
99d31326
SH		 1793 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
1794 key->basic.n_proto == htons(ETH_P_RARP)) &&
1795 (fl_dump_key_val(skb, &key->arp.sip,
1796 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
1797 TCA_FLOWER_KEY_ARP_SIP_MASK,
1798 sizeof(key->arp.sip)) ||
1799 fl_dump_key_val(skb, &key->arp.tip,
1800 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
1801 TCA_FLOWER_KEY_ARP_TIP_MASK,
1802 sizeof(key->arp.tip)) ||
1803 fl_dump_key_val(skb, &key->arp.op,
1804 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
1805 TCA_FLOWER_KEY_ARP_OP_MASK,
1806 sizeof(key->arp.op)) ||
1807 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1808 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1809 sizeof(key->arp.sha)) ||
1810 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1811 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1812 sizeof(key->arp.tha))))
1813 goto nla_put_failure;
77b9900e 1814
bc3103f1
AV		 1815 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
1816 (fl_dump_key_val(skb, &key->enc_ipv4.src,
1817 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
1818 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1819 sizeof(key->enc_ipv4.src)) ||
1820 fl_dump_key_val(skb, &key->enc_ipv4.dst,
1821 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
1822 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1823 sizeof(key->enc_ipv4.dst))))
1824 goto nla_put_failure;
1825 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
1826 (fl_dump_key_val(skb, &key->enc_ipv6.src,
1827 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
1828 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1829 sizeof(key->enc_ipv6.src)) ||
1830 fl_dump_key_val(skb, &key->enc_ipv6.dst,
1831 TCA_FLOWER_KEY_ENC_IPV6_DST,
1832 &mask->enc_ipv6.dst,
1833 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1834 sizeof(key->enc_ipv6.dst))))
1835 goto nla_put_failure;
1836
1837 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
eb523f42 1838 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
f4d997fd
HHZ		 1839 sizeof(key->enc_key_id)) ||
1840 fl_dump_key_val(skb, &key->enc_tp.src,
1841 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1842 &mask->enc_tp.src,
1843 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1844 sizeof(key->enc_tp.src)) ||
1845 fl_dump_key_val(skb, &key->enc_tp.dst,
1846 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1847 &mask->enc_tp.dst,
1848 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
0e2c17b6 1849 sizeof(key->enc_tp.dst)) ||
0a6e7778
PJV		 1850 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
1851 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
bc3103f1
AV		 1852 goto nla_put_failure;
1853
faa3ffce
OG		 1854 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
1855 goto nla_put_failure;
1856
f5749081
JP		 1857 return 0;
1858
1859nla_put_failure:
1860 return -EMSGSIZE;
1861}
1862
1863static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
1864 struct sk_buff *skb, struct tcmsg *t)
1865{
1866 struct cls_fl_filter *f = fh;
1867 struct nlattr *nest;
1868 struct fl_flow_key *key, *mask;
1869
1870 if (!f)
1871 return skb->len;
1872
1873 t->tcm_handle = f->handle;
1874
1875 nest = nla_nest_start(skb, TCA_OPTIONS);
1876 if (!nest)
1877 goto nla_put_failure;
1878
1879 if (f->res.classid &&
1880 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
1881 goto nla_put_failure;
1882
1883 key = &f->key;
1884 mask = &f->mask->key;
1885
1886 if (fl_dump_key(skb, net, key, mask))
1887 goto nla_put_failure;
1888
1889 if (!tc_skip_hw(f->flags))
1890 fl_hw_update_stats(tp, f);
1891
749e6720
OG		 1892 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
1893 goto nla_put_failure;
e69985c6 1894
86c55361
VB		 1895 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
1896 goto nla_put_failure;
1897
77b9900e
JP		 1898 if (tcf_exts_dump(skb, &f->exts))
1899 goto nla_put_failure;
1900
1901 nla_nest_end(skb, nest);
1902
1903 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
1904 goto nla_put_failure;
1905
1906 return skb->len;
1907
1908nla_put_failure:
1909 nla_nest_cancel(skb, nest);
1910 return -1;
1911}
1912
b95ec7eb
JP		 1913static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
1914{
1915 struct fl_flow_tmplt *tmplt = tmplt_priv;
1916 struct fl_flow_key *key, *mask;
1917 struct nlattr *nest;
1918
1919 nest = nla_nest_start(skb, TCA_OPTIONS);
1920 if (!nest)
1921 goto nla_put_failure;
1922
1923 key = &tmplt->dummy_key;
1924 mask = &tmplt->mask;
1925
1926 if (fl_dump_key(skb, net, key, mask))
1927 goto nla_put_failure;
1928
1929 nla_nest_end(skb, nest);
1930
1931 return skb->len;
1932
1933nla_put_failure:
1934 nla_nest_cancel(skb, nest);
1935 return -EMSGSIZE;
1936}
1937
07d79fc7
CW		 1938static void fl_bind_class(void *fh, u32 classid, unsigned long cl)
1939{
1940 struct cls_fl_filter *f = fh;
1941
1942 if (f && f->res.classid == classid)
1943 f->res.class = cl;
1944}
1945
77b9900e
JP		 1946static struct tcf_proto_ops cls_fl_ops __read_mostly = {
1947 .kind = "flower",
1948 .classify = fl_classify,
1949 .init = fl_init,
1950 .destroy = fl_destroy,
1951 .get = fl_get,
1952 .change = fl_change,
1953 .delete = fl_delete,
1954 .walk = fl_walk,
31533cba 1955 .reoffload = fl_reoffload,
77b9900e 1956 .dump = fl_dump,
07d79fc7 1957 .bind_class = fl_bind_class,
b95ec7eb
JP		 1958 .tmplt_create = fl_tmplt_create,
1959 .tmplt_destroy = fl_tmplt_destroy,
1960 .tmplt_dump = fl_tmplt_dump,
77b9900e
JP		 1961 .owner = THIS_MODULE,
1962};
1963
1964static int __init cls_fl_init(void)
1965{
1966 return register_tcf_proto_ops(&cls_fl_ops);
1967}
1968
1969static void __exit cls_fl_exit(void)
1970{
1971 unregister_tcf_proto_ops(&cls_fl_ops);
1972}
1973
1974module_init(cls_fl_init);
1975module_exit(cls_fl_exit);
1976
1977MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
1978MODULE_DESCRIPTION("Flower classifier");
1979MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)