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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
77b9900e JP |
2 | /* |
3 | * net/sched/cls_flower.c Flower classifier | |
4 | * | |
5 | * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us> | |
77b9900e JP |
6 | */ |
7 | ||
8 | #include <linux/kernel.h> | |
9 | #include <linux/init.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/rhashtable.h> | |
d9363774 | 12 | #include <linux/workqueue.h> |
06177558 | 13 | #include <linux/refcount.h> |
77b9900e JP |
14 | |
15 | #include <linux/if_ether.h> | |
16 | #include <linux/in6.h> | |
17 | #include <linux/ip.h> | |
a577d8f7 | 18 | #include <linux/mpls.h> |
77b9900e JP |
19 | |
20 | #include <net/sch_generic.h> | |
21 | #include <net/pkt_cls.h> | |
22 | #include <net/ip.h> | |
23 | #include <net/flow_dissector.h> | |
0a6e7778 | 24 | #include <net/geneve.h> |
d8f9dfae | 25 | #include <net/vxlan.h> |
79b1011c | 26 | #include <net/erspan.h> |
77b9900e | 27 | |
bc3103f1 AV |
28 | #include <net/dst.h> |
29 | #include <net/dst_metadata.h> | |
30 | ||
e0ace68a PB |
31 | #include <uapi/linux/netfilter/nf_conntrack_common.h> |
32 | ||
1bcc51ac | 33 | #define TCA_FLOWER_KEY_CT_FLAGS_MAX \ |
34 | ((__TCA_FLOWER_KEY_CT_FLAGS_MAX - 1) << 1) | |
35 | #define TCA_FLOWER_KEY_CT_FLAGS_MASK \ | |
36 | (TCA_FLOWER_KEY_CT_FLAGS_MAX - 1) | |
37 | ||
77b9900e | 38 | struct fl_flow_key { |
8212ed77 | 39 | struct flow_dissector_key_meta meta; |
42aecaa9 | 40 | struct flow_dissector_key_control control; |
bc3103f1 | 41 | struct flow_dissector_key_control enc_control; |
77b9900e JP |
42 | struct flow_dissector_key_basic basic; |
43 | struct flow_dissector_key_eth_addrs eth; | |
9399ae9a | 44 | struct flow_dissector_key_vlan vlan; |
d64efd09 | 45 | struct flow_dissector_key_vlan cvlan; |
77b9900e | 46 | union { |
c3f83241 | 47 | struct flow_dissector_key_ipv4_addrs ipv4; |
77b9900e JP |
48 | struct flow_dissector_key_ipv6_addrs ipv6; |
49 | }; | |
50 | struct flow_dissector_key_ports tp; | |
7b684884 | 51 | struct flow_dissector_key_icmp icmp; |
99d31326 | 52 | struct flow_dissector_key_arp arp; |
bc3103f1 AV |
53 | struct flow_dissector_key_keyid enc_key_id; |
54 | union { | |
55 | struct flow_dissector_key_ipv4_addrs enc_ipv4; | |
56 | struct flow_dissector_key_ipv6_addrs enc_ipv6; | |
57 | }; | |
f4d997fd | 58 | struct flow_dissector_key_ports enc_tp; |
a577d8f7 | 59 | struct flow_dissector_key_mpls mpls; |
fdfc7dd6 | 60 | struct flow_dissector_key_tcp tcp; |
4d80cc0a | 61 | struct flow_dissector_key_ip ip; |
0e2c17b6 | 62 | struct flow_dissector_key_ip enc_ip; |
0a6e7778 | 63 | struct flow_dissector_key_enc_opts enc_opts; |
8ffb055b YK |
64 | union { |
65 | struct flow_dissector_key_ports tp; | |
66 | struct { | |
67 | struct flow_dissector_key_ports tp_min; | |
68 | struct flow_dissector_key_ports tp_max; | |
69 | }; | |
70 | } tp_range; | |
e0ace68a | 71 | struct flow_dissector_key_ct ct; |
5923b8f7 | 72 | struct flow_dissector_key_hash hash; |
77b9900e JP |
73 | } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */ |
74 | ||
75 | struct fl_flow_mask_range { | |
76 | unsigned short int start; | |
77 | unsigned short int end; | |
78 | }; | |
79 | ||
80 | struct fl_flow_mask { | |
81 | struct fl_flow_key key; | |
82 | struct fl_flow_mask_range range; | |
5c72299f | 83 | u32 flags; |
05cd271f PB |
84 | struct rhash_head ht_node; |
85 | struct rhashtable ht; | |
86 | struct rhashtable_params filter_ht_params; | |
87 | struct flow_dissector dissector; | |
88 | struct list_head filters; | |
44a5cd43 | 89 | struct rcu_work rwork; |
05cd271f | 90 | struct list_head list; |
f48ef4d5 | 91 | refcount_t refcnt; |
77b9900e JP |
92 | }; |
93 | ||
b95ec7eb JP |
94 | struct fl_flow_tmplt { |
95 | struct fl_flow_key dummy_key; | |
96 | struct fl_flow_key mask; | |
97 | struct flow_dissector dissector; | |
98 | struct tcf_chain *chain; | |
99 | }; | |
100 | ||
77b9900e JP |
101 | struct cls_fl_head { |
102 | struct rhashtable ht; | |
259e60f9 | 103 | spinlock_t masks_lock; /* Protect masks list */ |
05cd271f | 104 | struct list_head masks; |
c049d56e | 105 | struct list_head hw_filters; |
aaa908ff | 106 | struct rcu_work rwork; |
c15ab236 | 107 | struct idr handle_idr; |
77b9900e JP |
108 | }; |
109 | ||
110 | struct cls_fl_filter { | |
05cd271f | 111 | struct fl_flow_mask *mask; |
77b9900e JP |
112 | struct rhash_head ht_node; |
113 | struct fl_flow_key mkey; | |
114 | struct tcf_exts exts; | |
115 | struct tcf_result res; | |
116 | struct fl_flow_key key; | |
117 | struct list_head list; | |
c049d56e | 118 | struct list_head hw_list; |
77b9900e | 119 | u32 handle; |
e69985c6 | 120 | u32 flags; |
86c55361 | 121 | u32 in_hw_count; |
aaa908ff | 122 | struct rcu_work rwork; |
7091d8c7 | 123 | struct net_device *hw_dev; |
06177558 VB |
124 | /* Flower classifier is unlocked, which means that its reference counter |
125 | * can be changed concurrently without any kind of external | |
126 | * synchronization. Use atomic reference counter to be concurrency-safe. | |
127 | */ | |
128 | refcount_t refcnt; | |
b2552b8c | 129 | bool deleted; |
77b9900e JP |
130 | }; |
131 | ||
05cd271f PB |
132 | static const struct rhashtable_params mask_ht_params = { |
133 | .key_offset = offsetof(struct fl_flow_mask, key), | |
134 | .key_len = sizeof(struct fl_flow_key), | |
135 | .head_offset = offsetof(struct fl_flow_mask, ht_node), | |
136 | .automatic_shrinking = true, | |
137 | }; | |
138 | ||
77b9900e JP |
139 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) |
140 | { | |
141 | return mask->range.end - mask->range.start; | |
142 | } | |
143 | ||
144 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
145 | { | |
146 | const u8 *bytes = (const u8 *) &mask->key; | |
147 | size_t size = sizeof(mask->key); | |
05cd271f | 148 | size_t i, first = 0, last; |
77b9900e | 149 | |
05cd271f PB |
150 | for (i = 0; i < size; i++) { |
151 | if (bytes[i]) { | |
152 | first = i; | |
153 | break; | |
154 | } | |
155 | } | |
156 | last = first; | |
157 | for (i = size - 1; i != first; i--) { | |
77b9900e | 158 | if (bytes[i]) { |
77b9900e | 159 | last = i; |
05cd271f | 160 | break; |
77b9900e JP |
161 | } |
162 | } | |
163 | mask->range.start = rounddown(first, sizeof(long)); | |
164 | mask->range.end = roundup(last + 1, sizeof(long)); | |
165 | } | |
166 | ||
167 | static void *fl_key_get_start(struct fl_flow_key *key, | |
168 | const struct fl_flow_mask *mask) | |
169 | { | |
170 | return (u8 *) key + mask->range.start; | |
171 | } | |
172 | ||
173 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
174 | struct fl_flow_mask *mask) | |
175 | { | |
176 | const long *lkey = fl_key_get_start(key, mask); | |
177 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
178 | long *lmkey = fl_key_get_start(mkey, mask); | |
179 | int i; | |
180 | ||
181 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
182 | *lmkey++ = *lkey++ & *lmask++; | |
183 | } | |
184 | ||
b95ec7eb JP |
185 | static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt, |
186 | struct fl_flow_mask *mask) | |
187 | { | |
188 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
189 | const long *ltmplt; | |
190 | int i; | |
191 | ||
192 | if (!tmplt) | |
193 | return true; | |
194 | ltmplt = fl_key_get_start(&tmplt->mask, mask); | |
195 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) { | |
196 | if (~*ltmplt++ & *lmask++) | |
197 | return false; | |
198 | } | |
199 | return true; | |
200 | } | |
201 | ||
77b9900e JP |
202 | static void fl_clear_masked_range(struct fl_flow_key *key, |
203 | struct fl_flow_mask *mask) | |
204 | { | |
205 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
206 | } | |
207 | ||
5c72299f AN |
208 | static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter, |
209 | struct fl_flow_key *key, | |
210 | struct fl_flow_key *mkey) | |
211 | { | |
6215afcb | 212 | u16 min_mask, max_mask, min_val, max_val; |
5c72299f | 213 | |
6215afcb VO |
214 | min_mask = ntohs(filter->mask->key.tp_range.tp_min.dst); |
215 | max_mask = ntohs(filter->mask->key.tp_range.tp_max.dst); | |
216 | min_val = ntohs(filter->key.tp_range.tp_min.dst); | |
217 | max_val = ntohs(filter->key.tp_range.tp_max.dst); | |
5c72299f AN |
218 | |
219 | if (min_mask && max_mask) { | |
6215afcb VO |
220 | if (ntohs(key->tp_range.tp.dst) < min_val || |
221 | ntohs(key->tp_range.tp.dst) > max_val) | |
5c72299f AN |
222 | return false; |
223 | ||
224 | /* skb does not have min and max values */ | |
8ffb055b YK |
225 | mkey->tp_range.tp_min.dst = filter->mkey.tp_range.tp_min.dst; |
226 | mkey->tp_range.tp_max.dst = filter->mkey.tp_range.tp_max.dst; | |
5c72299f AN |
227 | } |
228 | return true; | |
229 | } | |
230 | ||
231 | static bool fl_range_port_src_cmp(struct cls_fl_filter *filter, | |
232 | struct fl_flow_key *key, | |
233 | struct fl_flow_key *mkey) | |
234 | { | |
6215afcb | 235 | u16 min_mask, max_mask, min_val, max_val; |
5c72299f | 236 | |
6215afcb VO |
237 | min_mask = ntohs(filter->mask->key.tp_range.tp_min.src); |
238 | max_mask = ntohs(filter->mask->key.tp_range.tp_max.src); | |
239 | min_val = ntohs(filter->key.tp_range.tp_min.src); | |
240 | max_val = ntohs(filter->key.tp_range.tp_max.src); | |
5c72299f AN |
241 | |
242 | if (min_mask && max_mask) { | |
6215afcb VO |
243 | if (ntohs(key->tp_range.tp.src) < min_val || |
244 | ntohs(key->tp_range.tp.src) > max_val) | |
5c72299f AN |
245 | return false; |
246 | ||
247 | /* skb does not have min and max values */ | |
8ffb055b YK |
248 | mkey->tp_range.tp_min.src = filter->mkey.tp_range.tp_min.src; |
249 | mkey->tp_range.tp_max.src = filter->mkey.tp_range.tp_max.src; | |
5c72299f AN |
250 | } |
251 | return true; | |
252 | } | |
253 | ||
254 | static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask, | |
255 | struct fl_flow_key *mkey) | |
a3308d8f | 256 | { |
05cd271f PB |
257 | return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask), |
258 | mask->filter_ht_params); | |
a3308d8f PB |
259 | } |
260 | ||
5c72299f AN |
261 | static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask, |
262 | struct fl_flow_key *mkey, | |
263 | struct fl_flow_key *key) | |
264 | { | |
265 | struct cls_fl_filter *filter, *f; | |
266 | ||
267 | list_for_each_entry_rcu(filter, &mask->filters, list) { | |
268 | if (!fl_range_port_dst_cmp(filter, key, mkey)) | |
269 | continue; | |
270 | ||
271 | if (!fl_range_port_src_cmp(filter, key, mkey)) | |
272 | continue; | |
273 | ||
274 | f = __fl_lookup(mask, mkey); | |
275 | if (f) | |
276 | return f; | |
277 | } | |
278 | return NULL; | |
279 | } | |
280 | ||
0af413bd AB |
281 | static noinline_for_stack |
282 | struct cls_fl_filter *fl_mask_lookup(struct fl_flow_mask *mask, struct fl_flow_key *key) | |
5c72299f | 283 | { |
0af413bd AB |
284 | struct fl_flow_key mkey; |
285 | ||
286 | fl_set_masked_key(&mkey, key, mask); | |
5c72299f | 287 | if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE)) |
0af413bd | 288 | return fl_lookup_range(mask, &mkey, key); |
5c72299f | 289 | |
0af413bd | 290 | return __fl_lookup(mask, &mkey); |
5c72299f AN |
291 | } |
292 | ||
e0ace68a PB |
293 | static u16 fl_ct_info_to_flower_map[] = { |
294 | [IP_CT_ESTABLISHED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED | | |
295 | TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED, | |
296 | [IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED | | |
297 | TCA_FLOWER_KEY_CT_FLAGS_RELATED, | |
298 | [IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED | | |
8c85d18c PB |
299 | TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED | |
300 | TCA_FLOWER_KEY_CT_FLAGS_REPLY, | |
e0ace68a | 301 | [IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED | |
8c85d18c PB |
302 | TCA_FLOWER_KEY_CT_FLAGS_RELATED | |
303 | TCA_FLOWER_KEY_CT_FLAGS_REPLY, | |
e0ace68a PB |
304 | [IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED | |
305 | TCA_FLOWER_KEY_CT_FLAGS_NEW, | |
306 | }; | |
307 | ||
77b9900e JP |
308 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
309 | struct tcf_result *res) | |
310 | { | |
311 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
7baf2429 | 312 | bool post_ct = qdisc_skb_cb(skb)->post_ct; |
e0ace68a PB |
313 | struct fl_flow_key skb_key; |
314 | struct fl_flow_mask *mask; | |
315 | struct cls_fl_filter *f; | |
77b9900e | 316 | |
05cd271f | 317 | list_for_each_entry_rcu(mask, &head->masks, list) { |
8a9093c7 | 318 | flow_dissector_init_keys(&skb_key.control, &skb_key.basic); |
05cd271f | 319 | fl_clear_masked_range(&skb_key, mask); |
bc3103f1 | 320 | |
8212ed77 | 321 | skb_flow_dissect_meta(skb, &mask->dissector, &skb_key); |
05cd271f PB |
322 | /* skb_flow_dissect() does not set n_proto in case an unknown |
323 | * protocol, so do it rather here. | |
324 | */ | |
d7bf2ebe | 325 | skb_key.basic.n_proto = skb_protocol(skb, false); |
05cd271f | 326 | skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key); |
e0ace68a PB |
327 | skb_flow_dissect_ct(skb, &mask->dissector, &skb_key, |
328 | fl_ct_info_to_flower_map, | |
7baf2429 | 329 | ARRAY_SIZE(fl_ct_info_to_flower_map), |
330 | post_ct); | |
5923b8f7 | 331 | skb_flow_dissect_hash(skb, &mask->dissector, &skb_key); |
05cd271f | 332 | skb_flow_dissect(skb, &mask->dissector, &skb_key, 0); |
77b9900e | 333 | |
0af413bd | 334 | f = fl_mask_lookup(mask, &skb_key); |
05cd271f PB |
335 | if (f && !tc_skip_sw(f->flags)) { |
336 | *res = f->res; | |
337 | return tcf_exts_exec(skb, &f->exts, res); | |
338 | } | |
77b9900e JP |
339 | } |
340 | return -1; | |
341 | } | |
342 | ||
343 | static int fl_init(struct tcf_proto *tp) | |
344 | { | |
345 | struct cls_fl_head *head; | |
346 | ||
347 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
348 | if (!head) | |
349 | return -ENOBUFS; | |
350 | ||
259e60f9 | 351 | spin_lock_init(&head->masks_lock); |
05cd271f | 352 | INIT_LIST_HEAD_RCU(&head->masks); |
c049d56e | 353 | INIT_LIST_HEAD(&head->hw_filters); |
77b9900e | 354 | rcu_assign_pointer(tp->root, head); |
c15ab236 | 355 | idr_init(&head->handle_idr); |
77b9900e | 356 | |
05cd271f PB |
357 | return rhashtable_init(&head->ht, &mask_ht_params); |
358 | } | |
359 | ||
99815f50 | 360 | static void fl_mask_free(struct fl_flow_mask *mask, bool mask_init_done) |
44a5cd43 | 361 | { |
99815f50 VB |
362 | /* temporary masks don't have their filters list and ht initialized */ |
363 | if (mask_init_done) { | |
364 | WARN_ON(!list_empty(&mask->filters)); | |
365 | rhashtable_destroy(&mask->ht); | |
366 | } | |
44a5cd43 PA |
367 | kfree(mask); |
368 | } | |
369 | ||
370 | static void fl_mask_free_work(struct work_struct *work) | |
371 | { | |
372 | struct fl_flow_mask *mask = container_of(to_rcu_work(work), | |
373 | struct fl_flow_mask, rwork); | |
374 | ||
99815f50 VB |
375 | fl_mask_free(mask, true); |
376 | } | |
377 | ||
378 | static void fl_uninit_mask_free_work(struct work_struct *work) | |
379 | { | |
380 | struct fl_flow_mask *mask = container_of(to_rcu_work(work), | |
381 | struct fl_flow_mask, rwork); | |
382 | ||
383 | fl_mask_free(mask, false); | |
44a5cd43 PA |
384 | } |
385 | ||
9994677c | 386 | static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask) |
05cd271f | 387 | { |
f48ef4d5 | 388 | if (!refcount_dec_and_test(&mask->refcnt)) |
05cd271f PB |
389 | return false; |
390 | ||
391 | rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params); | |
259e60f9 VB |
392 | |
393 | spin_lock(&head->masks_lock); | |
05cd271f | 394 | list_del_rcu(&mask->list); |
259e60f9 VB |
395 | spin_unlock(&head->masks_lock); |
396 | ||
9994677c | 397 | tcf_queue_work(&mask->rwork, fl_mask_free_work); |
05cd271f PB |
398 | |
399 | return true; | |
77b9900e JP |
400 | } |
401 | ||
c049d56e VB |
402 | static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp) |
403 | { | |
404 | /* Flower classifier only changes root pointer during init and destroy. | |
405 | * Users must obtain reference to tcf_proto instance before calling its | |
406 | * API, so tp->root pointer is protected from concurrent call to | |
407 | * fl_destroy() by reference counting. | |
408 | */ | |
409 | return rcu_dereference_raw(tp->root); | |
410 | } | |
411 | ||
0dadc117 CW |
412 | static void __fl_destroy_filter(struct cls_fl_filter *f) |
413 | { | |
414 | tcf_exts_destroy(&f->exts); | |
415 | tcf_exts_put_net(&f->exts); | |
416 | kfree(f); | |
417 | } | |
418 | ||
0552c8af | 419 | static void fl_destroy_filter_work(struct work_struct *work) |
77b9900e | 420 | { |
aaa908ff CW |
421 | struct cls_fl_filter *f = container_of(to_rcu_work(work), |
422 | struct cls_fl_filter, rwork); | |
77b9900e | 423 | |
0dadc117 | 424 | __fl_destroy_filter(f); |
0552c8af CW |
425 | } |
426 | ||
1b0f8037 | 427 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f, |
c24e43d8 | 428 | bool rtnl_held, struct netlink_ext_ack *extack) |
5b33f488 | 429 | { |
208c0f4b | 430 | struct tcf_block *block = tp->chain->block; |
f9e30088 | 431 | struct flow_cls_offload cls_flower = {}; |
5b33f488 | 432 | |
d6787147 | 433 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack); |
f9e30088 | 434 | cls_flower.command = FLOW_CLS_DESTROY; |
de4784ca | 435 | cls_flower.cookie = (unsigned long) f; |
5b33f488 | 436 | |
40119211 | 437 | tc_setup_cb_destroy(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, false, |
918190f5 | 438 | &f->flags, &f->in_hw_count, rtnl_held); |
c24e43d8 | 439 | |
5b33f488 AV |
440 | } |
441 | ||
e8eb36cd | 442 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
c24e43d8 | 443 | struct cls_fl_filter *f, bool rtnl_held, |
41002038 | 444 | struct netlink_ext_ack *extack) |
5b33f488 | 445 | { |
208c0f4b | 446 | struct tcf_block *block = tp->chain->block; |
f9e30088 | 447 | struct flow_cls_offload cls_flower = {}; |
717503b9 | 448 | bool skip_sw = tc_skip_sw(f->flags); |
c24e43d8 VB |
449 | int err = 0; |
450 | ||
e3ab786b | 451 | cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts)); |
918190f5 VB |
452 | if (!cls_flower.rule) |
453 | return -ENOMEM; | |
8f256622 | 454 | |
d6787147 | 455 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack); |
f9e30088 | 456 | cls_flower.command = FLOW_CLS_REPLACE; |
de4784ca | 457 | cls_flower.cookie = (unsigned long) f; |
8f256622 PNA |
458 | cls_flower.rule->match.dissector = &f->mask->dissector; |
459 | cls_flower.rule->match.mask = &f->mask->key; | |
460 | cls_flower.rule->match.key = &f->mkey; | |
384c181e | 461 | cls_flower.classid = f->res.classid; |
5b33f488 | 462 | |
b15e7a6e | 463 | err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts); |
3a7b6861 PNA |
464 | if (err) { |
465 | kfree(cls_flower.rule); | |
918190f5 | 466 | if (skip_sw) { |
1f15bb4f | 467 | NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action"); |
918190f5 VB |
468 | return err; |
469 | } | |
470 | return 0; | |
3a7b6861 PNA |
471 | } |
472 | ||
40119211 | 473 | err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, |
918190f5 | 474 | skip_sw, &f->flags, &f->in_hw_count, rtnl_held); |
5a6ff4b1 | 475 | tc_cleanup_flow_action(&cls_flower.rule->action); |
8f256622 PNA |
476 | kfree(cls_flower.rule); |
477 | ||
40119211 | 478 | if (err) { |
918190f5 VB |
479 | fl_hw_destroy_filter(tp, f, rtnl_held, NULL); |
480 | return err; | |
717503b9 JP |
481 | } |
482 | ||
918190f5 VB |
483 | if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW)) |
484 | return -EINVAL; | |
c24e43d8 | 485 | |
918190f5 | 486 | return 0; |
5b33f488 AV |
487 | } |
488 | ||
c24e43d8 VB |
489 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f, |
490 | bool rtnl_held) | |
10cbc684 | 491 | { |
208c0f4b | 492 | struct tcf_block *block = tp->chain->block; |
f9e30088 | 493 | struct flow_cls_offload cls_flower = {}; |
10cbc684 | 494 | |
d6787147 | 495 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL); |
f9e30088 | 496 | cls_flower.command = FLOW_CLS_STATS; |
de4784ca | 497 | cls_flower.cookie = (unsigned long) f; |
384c181e | 498 | cls_flower.classid = f->res.classid; |
10cbc684 | 499 | |
918190f5 VB |
500 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, |
501 | rtnl_held); | |
3b1903ef PNA |
502 | |
503 | tcf_exts_stats_update(&f->exts, cls_flower.stats.bytes, | |
504 | cls_flower.stats.pkts, | |
4b61d3e8 | 505 | cls_flower.stats.drops, |
93a129eb JP |
506 | cls_flower.stats.lastused, |
507 | cls_flower.stats.used_hw_stats, | |
508 | cls_flower.stats.used_hw_stats_valid); | |
10cbc684 AV |
509 | } |
510 | ||
06177558 VB |
511 | static void __fl_put(struct cls_fl_filter *f) |
512 | { | |
513 | if (!refcount_dec_and_test(&f->refcnt)) | |
514 | return; | |
515 | ||
516 | if (tcf_exts_get_net(&f->exts)) | |
517 | tcf_queue_work(&f->rwork, fl_destroy_filter_work); | |
518 | else | |
519 | __fl_destroy_filter(f); | |
520 | } | |
521 | ||
522 | static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle) | |
523 | { | |
524 | struct cls_fl_filter *f; | |
525 | ||
526 | rcu_read_lock(); | |
527 | f = idr_find(&head->handle_idr, handle); | |
528 | if (f && !refcount_inc_not_zero(&f->refcnt)) | |
529 | f = NULL; | |
530 | rcu_read_unlock(); | |
531 | ||
532 | return f; | |
533 | } | |
534 | ||
b2552b8c | 535 | static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f, |
c24e43d8 VB |
536 | bool *last, bool rtnl_held, |
537 | struct netlink_ext_ack *extack) | |
13fa876e | 538 | { |
e474619a | 539 | struct cls_fl_head *head = fl_head_dereference(tp); |
c15ab236 | 540 | |
b2552b8c VB |
541 | *last = false; |
542 | ||
3d81e711 VB |
543 | spin_lock(&tp->lock); |
544 | if (f->deleted) { | |
545 | spin_unlock(&tp->lock); | |
b2552b8c | 546 | return -ENOENT; |
3d81e711 | 547 | } |
b2552b8c VB |
548 | |
549 | f->deleted = true; | |
550 | rhashtable_remove_fast(&f->mask->ht, &f->ht_node, | |
551 | f->mask->filter_ht_params); | |
9c160941 | 552 | idr_remove(&head->handle_idr, f->handle); |
13fa876e | 553 | list_del_rcu(&f->list); |
3d81e711 VB |
554 | spin_unlock(&tp->lock); |
555 | ||
9994677c | 556 | *last = fl_mask_put(head, f->mask); |
79685219 | 557 | if (!tc_skip_hw(f->flags)) |
c24e43d8 | 558 | fl_hw_destroy_filter(tp, f, rtnl_held, extack); |
13fa876e | 559 | tcf_unbind_filter(tp, &f->res); |
06177558 | 560 | __fl_put(f); |
05cd271f | 561 | |
b2552b8c | 562 | return 0; |
13fa876e RD |
563 | } |
564 | ||
d9363774 DB |
565 | static void fl_destroy_sleepable(struct work_struct *work) |
566 | { | |
aaa908ff CW |
567 | struct cls_fl_head *head = container_of(to_rcu_work(work), |
568 | struct cls_fl_head, | |
569 | rwork); | |
de9dc650 PB |
570 | |
571 | rhashtable_destroy(&head->ht); | |
d9363774 DB |
572 | kfree(head); |
573 | module_put(THIS_MODULE); | |
574 | } | |
575 | ||
12db03b6 VB |
576 | static void fl_destroy(struct tcf_proto *tp, bool rtnl_held, |
577 | struct netlink_ext_ack *extack) | |
77b9900e | 578 | { |
e474619a | 579 | struct cls_fl_head *head = fl_head_dereference(tp); |
05cd271f | 580 | struct fl_flow_mask *mask, *next_mask; |
77b9900e | 581 | struct cls_fl_filter *f, *next; |
b2552b8c | 582 | bool last; |
77b9900e | 583 | |
05cd271f PB |
584 | list_for_each_entry_safe(mask, next_mask, &head->masks, list) { |
585 | list_for_each_entry_safe(f, next, &mask->filters, list) { | |
c24e43d8 | 586 | __fl_delete(tp, f, &last, rtnl_held, extack); |
b2552b8c | 587 | if (last) |
05cd271f PB |
588 | break; |
589 | } | |
590 | } | |
c15ab236 | 591 | idr_destroy(&head->handle_idr); |
d9363774 DB |
592 | |
593 | __module_get(THIS_MODULE); | |
aaa908ff | 594 | tcf_queue_work(&head->rwork, fl_destroy_sleepable); |
77b9900e JP |
595 | } |
596 | ||
06177558 VB |
597 | static void fl_put(struct tcf_proto *tp, void *arg) |
598 | { | |
599 | struct cls_fl_filter *f = arg; | |
600 | ||
601 | __fl_put(f); | |
602 | } | |
603 | ||
8113c095 | 604 | static void *fl_get(struct tcf_proto *tp, u32 handle) |
77b9900e | 605 | { |
e474619a | 606 | struct cls_fl_head *head = fl_head_dereference(tp); |
77b9900e | 607 | |
06177558 | 608 | return __fl_get(head, handle); |
77b9900e JP |
609 | } |
610 | ||
611 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
612 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
613 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
614 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
615 | .len = IFNAMSIZ }, | |
616 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
617 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
618 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
619 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
620 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
621 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
622 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
623 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
624 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
625 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
626 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
627 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
628 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
629 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
630 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
631 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
632 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
633 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
634 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
635 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
636 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
637 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
638 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
639 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
640 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
641 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
642 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
643 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
644 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
645 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
646 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
647 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
648 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
649 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
650 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
651 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
652 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
653 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
654 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
655 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
656 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
657 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
658 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
659 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
660 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
661 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
662 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
663 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
664 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
665 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
666 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
667 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
668 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
669 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
670 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
671 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
672 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
673 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
674 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
675 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
676 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
677 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
678 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
679 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
680 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
681 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
61aec25a | 682 | [TCA_FLOWER_KEY_MPLS_OPTS] = { .type = NLA_NESTED }, |
fdfc7dd6 JP |
683 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
684 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
685 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
686 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
687 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
688 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
d64efd09 JL |
689 | [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 }, |
690 | [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 }, | |
691 | [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
0e2c17b6 OG |
692 | [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 }, |
693 | [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 }, | |
694 | [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 }, | |
695 | [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 }, | |
0a6e7778 PJV |
696 | [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED }, |
697 | [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED }, | |
1bcc51ac | 698 | [TCA_FLOWER_KEY_CT_STATE] = |
699 | NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK), | |
700 | [TCA_FLOWER_KEY_CT_STATE_MASK] = | |
701 | NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK), | |
e0ace68a PB |
702 | [TCA_FLOWER_KEY_CT_ZONE] = { .type = NLA_U16 }, |
703 | [TCA_FLOWER_KEY_CT_ZONE_MASK] = { .type = NLA_U16 }, | |
704 | [TCA_FLOWER_KEY_CT_MARK] = { .type = NLA_U32 }, | |
705 | [TCA_FLOWER_KEY_CT_MARK_MASK] = { .type = NLA_U32 }, | |
706 | [TCA_FLOWER_KEY_CT_LABELS] = { .type = NLA_BINARY, | |
707 | .len = 128 / BITS_PER_BYTE }, | |
708 | [TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY, | |
709 | .len = 128 / BITS_PER_BYTE }, | |
e2debf08 | 710 | [TCA_FLOWER_FLAGS] = { .type = NLA_U32 }, |
5923b8f7 AL |
711 | [TCA_FLOWER_KEY_HASH] = { .type = NLA_U32 }, |
712 | [TCA_FLOWER_KEY_HASH_MASK] = { .type = NLA_U32 }, | |
713 | ||
0a6e7778 PJV |
714 | }; |
715 | ||
716 | static const struct nla_policy | |
717 | enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = { | |
d8f9dfae XL |
718 | [TCA_FLOWER_KEY_ENC_OPTS_UNSPEC] = { |
719 | .strict_start_type = TCA_FLOWER_KEY_ENC_OPTS_VXLAN }, | |
0a6e7778 | 720 | [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED }, |
d8f9dfae | 721 | [TCA_FLOWER_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED }, |
79b1011c | 722 | [TCA_FLOWER_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED }, |
0a6e7778 PJV |
723 | }; |
724 | ||
725 | static const struct nla_policy | |
726 | geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = { | |
727 | [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 }, | |
728 | [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 }, | |
729 | [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY, | |
730 | .len = 128 }, | |
77b9900e JP |
731 | }; |
732 | ||
d8f9dfae XL |
733 | static const struct nla_policy |
734 | vxlan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1] = { | |
735 | [TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 }, | |
736 | }; | |
737 | ||
79b1011c XL |
738 | static const struct nla_policy |
739 | erspan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1] = { | |
740 | [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 }, | |
741 | [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 }, | |
742 | [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 }, | |
743 | [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 }, | |
744 | }; | |
745 | ||
61aec25a GN |
746 | static const struct nla_policy |
747 | mpls_stack_entry_policy[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1] = { | |
748 | [TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH] = { .type = NLA_U8 }, | |
749 | [TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL] = { .type = NLA_U8 }, | |
750 | [TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS] = { .type = NLA_U8 }, | |
751 | [TCA_FLOWER_KEY_MPLS_OPT_LSE_TC] = { .type = NLA_U8 }, | |
752 | [TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL] = { .type = NLA_U32 }, | |
753 | }; | |
754 | ||
77b9900e JP |
755 | static void fl_set_key_val(struct nlattr **tb, |
756 | void *val, int val_type, | |
757 | void *mask, int mask_type, int len) | |
758 | { | |
759 | if (!tb[val_type]) | |
760 | return; | |
e0ace68a | 761 | nla_memcpy(val, tb[val_type], len); |
77b9900e JP |
762 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) |
763 | memset(mask, 0xff, len); | |
764 | else | |
e0ace68a | 765 | nla_memcpy(mask, tb[mask_type], len); |
77b9900e JP |
766 | } |
767 | ||
5c72299f | 768 | static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key, |
bd7d4c12 GN |
769 | struct fl_flow_key *mask, |
770 | struct netlink_ext_ack *extack) | |
5c72299f | 771 | { |
8ffb055b YK |
772 | fl_set_key_val(tb, &key->tp_range.tp_min.dst, |
773 | TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_range.tp_min.dst, | |
774 | TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.dst)); | |
775 | fl_set_key_val(tb, &key->tp_range.tp_max.dst, | |
776 | TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_range.tp_max.dst, | |
777 | TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.dst)); | |
778 | fl_set_key_val(tb, &key->tp_range.tp_min.src, | |
779 | TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_range.tp_min.src, | |
780 | TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.src)); | |
781 | fl_set_key_val(tb, &key->tp_range.tp_max.src, | |
782 | TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_range.tp_max.src, | |
783 | TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.src)); | |
784 | ||
bd7d4c12 | 785 | if (mask->tp_range.tp_min.dst && mask->tp_range.tp_max.dst && |
6215afcb VO |
786 | ntohs(key->tp_range.tp_max.dst) <= |
787 | ntohs(key->tp_range.tp_min.dst)) { | |
bd7d4c12 GN |
788 | NL_SET_ERR_MSG_ATTR(extack, |
789 | tb[TCA_FLOWER_KEY_PORT_DST_MIN], | |
790 | "Invalid destination port range (min must be strictly smaller than max)"); | |
5c72299f | 791 | return -EINVAL; |
bd7d4c12 GN |
792 | } |
793 | if (mask->tp_range.tp_min.src && mask->tp_range.tp_max.src && | |
6215afcb VO |
794 | ntohs(key->tp_range.tp_max.src) <= |
795 | ntohs(key->tp_range.tp_min.src)) { | |
bd7d4c12 GN |
796 | NL_SET_ERR_MSG_ATTR(extack, |
797 | tb[TCA_FLOWER_KEY_PORT_SRC_MIN], | |
798 | "Invalid source port range (min must be strictly smaller than max)"); | |
799 | return -EINVAL; | |
800 | } | |
5c72299f AN |
801 | |
802 | return 0; | |
803 | } | |
804 | ||
61aec25a GN |
805 | static int fl_set_key_mpls_lse(const struct nlattr *nla_lse, |
806 | struct flow_dissector_key_mpls *key_val, | |
807 | struct flow_dissector_key_mpls *key_mask, | |
808 | struct netlink_ext_ack *extack) | |
809 | { | |
810 | struct nlattr *tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1]; | |
811 | struct flow_dissector_mpls_lse *lse_mask; | |
812 | struct flow_dissector_mpls_lse *lse_val; | |
813 | u8 lse_index; | |
814 | u8 depth; | |
815 | int err; | |
816 | ||
817 | err = nla_parse_nested(tb, TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX, nla_lse, | |
818 | mpls_stack_entry_policy, extack); | |
819 | if (err < 0) | |
820 | return err; | |
821 | ||
822 | if (!tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]) { | |
823 | NL_SET_ERR_MSG(extack, "Missing MPLS option \"depth\""); | |
824 | return -EINVAL; | |
825 | } | |
826 | ||
827 | depth = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]); | |
828 | ||
829 | /* LSE depth starts at 1, for consistency with terminology used by | |
830 | * RFC 3031 (section 3.9), where depth 0 refers to unlabeled packets. | |
831 | */ | |
832 | if (depth < 1 || depth > FLOW_DIS_MPLS_MAX) { | |
833 | NL_SET_ERR_MSG_ATTR(extack, | |
834 | tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH], | |
835 | "Invalid MPLS depth"); | |
836 | return -EINVAL; | |
837 | } | |
838 | lse_index = depth - 1; | |
839 | ||
840 | dissector_set_mpls_lse(key_val, lse_index); | |
841 | dissector_set_mpls_lse(key_mask, lse_index); | |
842 | ||
843 | lse_val = &key_val->ls[lse_index]; | |
844 | lse_mask = &key_mask->ls[lse_index]; | |
845 | ||
846 | if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]) { | |
847 | lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]); | |
848 | lse_mask->mpls_ttl = MPLS_TTL_MASK; | |
849 | } | |
850 | if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]) { | |
851 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]); | |
852 | ||
853 | if (bos & ~MPLS_BOS_MASK) { | |
854 | NL_SET_ERR_MSG_ATTR(extack, | |
855 | tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS], | |
856 | "Bottom Of Stack (BOS) must be 0 or 1"); | |
857 | return -EINVAL; | |
858 | } | |
859 | lse_val->mpls_bos = bos; | |
860 | lse_mask->mpls_bos = MPLS_BOS_MASK; | |
861 | } | |
862 | if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]) { | |
863 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]); | |
864 | ||
865 | if (tc & ~MPLS_TC_MASK) { | |
866 | NL_SET_ERR_MSG_ATTR(extack, | |
867 | tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC], | |
868 | "Traffic Class (TC) must be between 0 and 7"); | |
869 | return -EINVAL; | |
870 | } | |
871 | lse_val->mpls_tc = tc; | |
872 | lse_mask->mpls_tc = MPLS_TC_MASK; | |
873 | } | |
874 | if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]) { | |
875 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]); | |
876 | ||
877 | if (label & ~MPLS_LABEL_MASK) { | |
878 | NL_SET_ERR_MSG_ATTR(extack, | |
879 | tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL], | |
880 | "Label must be between 0 and 1048575"); | |
881 | return -EINVAL; | |
882 | } | |
883 | lse_val->mpls_label = label; | |
884 | lse_mask->mpls_label = MPLS_LABEL_MASK; | |
885 | } | |
886 | ||
887 | return 0; | |
888 | } | |
889 | ||
890 | static int fl_set_key_mpls_opts(const struct nlattr *nla_mpls_opts, | |
891 | struct flow_dissector_key_mpls *key_val, | |
892 | struct flow_dissector_key_mpls *key_mask, | |
893 | struct netlink_ext_ack *extack) | |
894 | { | |
895 | struct nlattr *nla_lse; | |
896 | int rem; | |
897 | int err; | |
898 | ||
899 | if (!(nla_mpls_opts->nla_type & NLA_F_NESTED)) { | |
900 | NL_SET_ERR_MSG_ATTR(extack, nla_mpls_opts, | |
901 | "NLA_F_NESTED is missing"); | |
902 | return -EINVAL; | |
903 | } | |
904 | ||
905 | nla_for_each_nested(nla_lse, nla_mpls_opts, rem) { | |
906 | if (nla_type(nla_lse) != TCA_FLOWER_KEY_MPLS_OPTS_LSE) { | |
907 | NL_SET_ERR_MSG_ATTR(extack, nla_lse, | |
908 | "Invalid MPLS option type"); | |
909 | return -EINVAL; | |
910 | } | |
911 | ||
912 | err = fl_set_key_mpls_lse(nla_lse, key_val, key_mask, extack); | |
913 | if (err < 0) | |
914 | return err; | |
915 | } | |
916 | if (rem) { | |
917 | NL_SET_ERR_MSG(extack, | |
918 | "Bytes leftover after parsing MPLS options"); | |
919 | return -EINVAL; | |
920 | } | |
921 | ||
922 | return 0; | |
923 | } | |
924 | ||
1a7fca63 BL |
925 | static int fl_set_key_mpls(struct nlattr **tb, |
926 | struct flow_dissector_key_mpls *key_val, | |
442f730e GN |
927 | struct flow_dissector_key_mpls *key_mask, |
928 | struct netlink_ext_ack *extack) | |
a577d8f7 | 929 | { |
58cff782 GN |
930 | struct flow_dissector_mpls_lse *lse_mask; |
931 | struct flow_dissector_mpls_lse *lse_val; | |
932 | ||
61aec25a GN |
933 | if (tb[TCA_FLOWER_KEY_MPLS_OPTS]) { |
934 | if (tb[TCA_FLOWER_KEY_MPLS_TTL] || | |
935 | tb[TCA_FLOWER_KEY_MPLS_BOS] || | |
936 | tb[TCA_FLOWER_KEY_MPLS_TC] || | |
937 | tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
938 | NL_SET_ERR_MSG_ATTR(extack, | |
939 | tb[TCA_FLOWER_KEY_MPLS_OPTS], | |
940 | "MPLS label, Traffic Class, Bottom Of Stack and Time To Live must be encapsulated in the MPLS options attribute"); | |
941 | return -EBADMSG; | |
942 | } | |
943 | ||
944 | return fl_set_key_mpls_opts(tb[TCA_FLOWER_KEY_MPLS_OPTS], | |
945 | key_val, key_mask, extack); | |
946 | } | |
947 | ||
58cff782 GN |
948 | lse_val = &key_val->ls[0]; |
949 | lse_mask = &key_mask->ls[0]; | |
950 | ||
a577d8f7 | 951 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { |
58cff782 GN |
952 | lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); |
953 | lse_mask->mpls_ttl = MPLS_TTL_MASK; | |
954 | dissector_set_mpls_lse(key_val, 0); | |
955 | dissector_set_mpls_lse(key_mask, 0); | |
a577d8f7 BL |
956 | } |
957 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
958 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
959 | ||
442f730e GN |
960 | if (bos & ~MPLS_BOS_MASK) { |
961 | NL_SET_ERR_MSG_ATTR(extack, | |
962 | tb[TCA_FLOWER_KEY_MPLS_BOS], | |
963 | "Bottom Of Stack (BOS) must be 0 or 1"); | |
1a7fca63 | 964 | return -EINVAL; |
442f730e | 965 | } |
58cff782 GN |
966 | lse_val->mpls_bos = bos; |
967 | lse_mask->mpls_bos = MPLS_BOS_MASK; | |
968 | dissector_set_mpls_lse(key_val, 0); | |
969 | dissector_set_mpls_lse(key_mask, 0); | |
a577d8f7 BL |
970 | } |
971 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
972 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
973 | ||
442f730e GN |
974 | if (tc & ~MPLS_TC_MASK) { |
975 | NL_SET_ERR_MSG_ATTR(extack, | |
976 | tb[TCA_FLOWER_KEY_MPLS_TC], | |
977 | "Traffic Class (TC) must be between 0 and 7"); | |
1a7fca63 | 978 | return -EINVAL; |
442f730e | 979 | } |
58cff782 GN |
980 | lse_val->mpls_tc = tc; |
981 | lse_mask->mpls_tc = MPLS_TC_MASK; | |
982 | dissector_set_mpls_lse(key_val, 0); | |
983 | dissector_set_mpls_lse(key_mask, 0); | |
a577d8f7 BL |
984 | } |
985 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
986 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
987 | ||
442f730e GN |
988 | if (label & ~MPLS_LABEL_MASK) { |
989 | NL_SET_ERR_MSG_ATTR(extack, | |
990 | tb[TCA_FLOWER_KEY_MPLS_LABEL], | |
991 | "Label must be between 0 and 1048575"); | |
1a7fca63 | 992 | return -EINVAL; |
442f730e | 993 | } |
58cff782 GN |
994 | lse_val->mpls_label = label; |
995 | lse_mask->mpls_label = MPLS_LABEL_MASK; | |
996 | dissector_set_mpls_lse(key_val, 0); | |
997 | dissector_set_mpls_lse(key_mask, 0); | |
a577d8f7 | 998 | } |
1a7fca63 | 999 | return 0; |
a577d8f7 BL |
1000 | } |
1001 | ||
9399ae9a | 1002 | static void fl_set_key_vlan(struct nlattr **tb, |
aaab0834 | 1003 | __be16 ethertype, |
d64efd09 | 1004 | int vlan_id_key, int vlan_prio_key, |
9399ae9a HHZ |
1005 | struct flow_dissector_key_vlan *key_val, |
1006 | struct flow_dissector_key_vlan *key_mask) | |
1007 | { | |
1008 | #define VLAN_PRIORITY_MASK 0x7 | |
1009 | ||
d64efd09 | 1010 | if (tb[vlan_id_key]) { |
9399ae9a | 1011 | key_val->vlan_id = |
d64efd09 | 1012 | nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK; |
9399ae9a HHZ |
1013 | key_mask->vlan_id = VLAN_VID_MASK; |
1014 | } | |
d64efd09 | 1015 | if (tb[vlan_prio_key]) { |
9399ae9a | 1016 | key_val->vlan_priority = |
d64efd09 | 1017 | nla_get_u8(tb[vlan_prio_key]) & |
9399ae9a HHZ |
1018 | VLAN_PRIORITY_MASK; |
1019 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
1020 | } | |
aaab0834 JL |
1021 | key_val->vlan_tpid = ethertype; |
1022 | key_mask->vlan_tpid = cpu_to_be16(~0); | |
9399ae9a HHZ |
1023 | } |
1024 | ||
faa3ffce OG |
1025 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
1026 | u32 *dissector_key, u32 *dissector_mask, | |
1027 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1028 | { | |
1029 | if (flower_mask & flower_flag_bit) { | |
1030 | *dissector_mask |= dissector_flag_bit; | |
1031 | if (flower_key & flower_flag_bit) | |
1032 | *dissector_key |= dissector_flag_bit; | |
1033 | } | |
1034 | } | |
1035 | ||
e304e21a GN |
1036 | static int fl_set_key_flags(struct nlattr **tb, u32 *flags_key, |
1037 | u32 *flags_mask, struct netlink_ext_ack *extack) | |
faa3ffce OG |
1038 | { |
1039 | u32 key, mask; | |
1040 | ||
d9724772 | 1041 | /* mask is mandatory for flags */ |
e304e21a GN |
1042 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) { |
1043 | NL_SET_ERR_MSG(extack, "Missing flags mask"); | |
d9724772 | 1044 | return -EINVAL; |
e304e21a | 1045 | } |
faa3ffce OG |
1046 | |
1047 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 1048 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
1049 | |
1050 | *flags_key = 0; | |
1051 | *flags_mask = 0; | |
1052 | ||
1053 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
1054 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
459d153d PJV |
1055 | fl_set_key_flag(key, mask, flags_key, flags_mask, |
1056 | TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, | |
1057 | FLOW_DIS_FIRST_FRAG); | |
d9724772 OG |
1058 | |
1059 | return 0; | |
faa3ffce OG |
1060 | } |
1061 | ||
0e2c17b6 | 1062 | static void fl_set_key_ip(struct nlattr **tb, bool encap, |
4d80cc0a OG |
1063 | struct flow_dissector_key_ip *key, |
1064 | struct flow_dissector_key_ip *mask) | |
1065 | { | |
0e2c17b6 OG |
1066 | int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS; |
1067 | int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL; | |
1068 | int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK; | |
1069 | int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK; | |
4d80cc0a | 1070 | |
0e2c17b6 OG |
1071 | fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)); |
1072 | fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)); | |
4d80cc0a OG |
1073 | } |
1074 | ||
0a6e7778 PJV |
1075 | static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key, |
1076 | int depth, int option_len, | |
1077 | struct netlink_ext_ack *extack) | |
1078 | { | |
1079 | struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1]; | |
1080 | struct nlattr *class = NULL, *type = NULL, *data = NULL; | |
1081 | struct geneve_opt *opt; | |
1082 | int err, data_len = 0; | |
1083 | ||
1084 | if (option_len > sizeof(struct geneve_opt)) | |
1085 | data_len = option_len - sizeof(struct geneve_opt); | |
1086 | ||
1087 | opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len]; | |
1088 | memset(opt, 0xff, option_len); | |
1089 | opt->length = data_len / 4; | |
1090 | opt->r1 = 0; | |
1091 | opt->r2 = 0; | |
1092 | opt->r3 = 0; | |
1093 | ||
1094 | /* If no mask has been prodived we assume an exact match. */ | |
1095 | if (!depth) | |
1096 | return sizeof(struct geneve_opt) + data_len; | |
1097 | ||
1098 | if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) { | |
1099 | NL_SET_ERR_MSG(extack, "Non-geneve option type for mask"); | |
1100 | return -EINVAL; | |
1101 | } | |
1102 | ||
8cb08174 JB |
1103 | err = nla_parse_nested_deprecated(tb, |
1104 | TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX, | |
1105 | nla, geneve_opt_policy, extack); | |
0a6e7778 PJV |
1106 | if (err < 0) |
1107 | return err; | |
1108 | ||
1109 | /* We are not allowed to omit any of CLASS, TYPE or DATA | |
1110 | * fields from the key. | |
1111 | */ | |
1112 | if (!option_len && | |
1113 | (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] || | |
1114 | !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] || | |
1115 | !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) { | |
1116 | NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data"); | |
1117 | return -EINVAL; | |
1118 | } | |
1119 | ||
1120 | /* Omitting any of CLASS, TYPE or DATA fields is allowed | |
1121 | * for the mask. | |
1122 | */ | |
1123 | if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) { | |
1124 | int new_len = key->enc_opts.len; | |
1125 | ||
1126 | data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]; | |
1127 | data_len = nla_len(data); | |
1128 | if (data_len < 4) { | |
1129 | NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long"); | |
1130 | return -ERANGE; | |
1131 | } | |
1132 | if (data_len % 4) { | |
1133 | NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long"); | |
1134 | return -ERANGE; | |
1135 | } | |
1136 | ||
1137 | new_len += sizeof(struct geneve_opt) + data_len; | |
1138 | BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX); | |
1139 | if (new_len > FLOW_DIS_TUN_OPTS_MAX) { | |
1140 | NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size"); | |
1141 | return -ERANGE; | |
1142 | } | |
1143 | opt->length = data_len / 4; | |
1144 | memcpy(opt->opt_data, nla_data(data), data_len); | |
1145 | } | |
1146 | ||
1147 | if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) { | |
1148 | class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]; | |
1149 | opt->opt_class = nla_get_be16(class); | |
1150 | } | |
1151 | ||
1152 | if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) { | |
1153 | type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]; | |
1154 | opt->type = nla_get_u8(type); | |
1155 | } | |
1156 | ||
1157 | return sizeof(struct geneve_opt) + data_len; | |
1158 | } | |
1159 | ||
d8f9dfae XL |
1160 | static int fl_set_vxlan_opt(const struct nlattr *nla, struct fl_flow_key *key, |
1161 | int depth, int option_len, | |
1162 | struct netlink_ext_ack *extack) | |
1163 | { | |
1164 | struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1]; | |
1165 | struct vxlan_metadata *md; | |
1166 | int err; | |
1167 | ||
1168 | md = (struct vxlan_metadata *)&key->enc_opts.data[key->enc_opts.len]; | |
1169 | memset(md, 0xff, sizeof(*md)); | |
1170 | ||
1171 | if (!depth) | |
1172 | return sizeof(*md); | |
1173 | ||
1174 | if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_VXLAN) { | |
1175 | NL_SET_ERR_MSG(extack, "Non-vxlan option type for mask"); | |
1176 | return -EINVAL; | |
1177 | } | |
1178 | ||
1179 | err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX, nla, | |
1180 | vxlan_opt_policy, extack); | |
1181 | if (err < 0) | |
1182 | return err; | |
1183 | ||
1184 | if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) { | |
1185 | NL_SET_ERR_MSG(extack, "Missing tunnel key vxlan option gbp"); | |
1186 | return -EINVAL; | |
1187 | } | |
1188 | ||
13e6ce98 | 1189 | if (tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) { |
d8f9dfae | 1190 | md->gbp = nla_get_u32(tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]); |
13e6ce98 XL |
1191 | md->gbp &= VXLAN_GBP_MASK; |
1192 | } | |
d8f9dfae XL |
1193 | |
1194 | return sizeof(*md); | |
1195 | } | |
1196 | ||
79b1011c XL |
1197 | static int fl_set_erspan_opt(const struct nlattr *nla, struct fl_flow_key *key, |
1198 | int depth, int option_len, | |
1199 | struct netlink_ext_ack *extack) | |
1200 | { | |
1201 | struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1]; | |
1202 | struct erspan_metadata *md; | |
1203 | int err; | |
1204 | ||
1205 | md = (struct erspan_metadata *)&key->enc_opts.data[key->enc_opts.len]; | |
1206 | memset(md, 0xff, sizeof(*md)); | |
1207 | md->version = 1; | |
1208 | ||
1209 | if (!depth) | |
1210 | return sizeof(*md); | |
1211 | ||
1212 | if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_ERSPAN) { | |
1213 | NL_SET_ERR_MSG(extack, "Non-erspan option type for mask"); | |
1214 | return -EINVAL; | |
1215 | } | |
1216 | ||
1217 | err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX, nla, | |
1218 | erspan_opt_policy, extack); | |
1219 | if (err < 0) | |
1220 | return err; | |
1221 | ||
1222 | if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) { | |
1223 | NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver"); | |
1224 | return -EINVAL; | |
1225 | } | |
1226 | ||
1227 | if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) | |
1228 | md->version = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]); | |
1229 | ||
1230 | if (md->version == 1) { | |
1231 | if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) { | |
1232 | NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index"); | |
1233 | return -EINVAL; | |
1234 | } | |
1235 | if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) { | |
1236 | nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]; | |
8e1b3ac4 | 1237 | memset(&md->u, 0x00, sizeof(md->u)); |
79b1011c XL |
1238 | md->u.index = nla_get_be32(nla); |
1239 | } | |
1240 | } else if (md->version == 2) { | |
1241 | if (!option_len && (!tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] || | |
1242 | !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID])) { | |
1243 | NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid"); | |
1244 | return -EINVAL; | |
1245 | } | |
1246 | if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]) { | |
1247 | nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]; | |
1248 | md->u.md2.dir = nla_get_u8(nla); | |
1249 | } | |
1250 | if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]) { | |
1251 | nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]; | |
1252 | set_hwid(&md->u.md2, nla_get_u8(nla)); | |
1253 | } | |
1254 | } else { | |
1255 | NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect"); | |
1256 | return -EINVAL; | |
1257 | } | |
1258 | ||
1259 | return sizeof(*md); | |
1260 | } | |
1261 | ||
0a6e7778 PJV |
1262 | static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key, |
1263 | struct fl_flow_key *mask, | |
1264 | struct netlink_ext_ack *extack) | |
1265 | { | |
1266 | const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL; | |
63c82997 JK |
1267 | int err, option_len, key_depth, msk_depth = 0; |
1268 | ||
8cb08174 JB |
1269 | err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS], |
1270 | TCA_FLOWER_KEY_ENC_OPTS_MAX, | |
1271 | enc_opts_policy, extack); | |
63c82997 JK |
1272 | if (err) |
1273 | return err; | |
0a6e7778 PJV |
1274 | |
1275 | nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]); | |
1276 | ||
1277 | if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) { | |
8cb08174 JB |
1278 | err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK], |
1279 | TCA_FLOWER_KEY_ENC_OPTS_MAX, | |
1280 | enc_opts_policy, extack); | |
63c82997 JK |
1281 | if (err) |
1282 | return err; | |
1283 | ||
0a6e7778 PJV |
1284 | nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]); |
1285 | msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]); | |
c96adff9 CW |
1286 | if (!nla_ok(nla_opt_msk, msk_depth)) { |
1287 | NL_SET_ERR_MSG(extack, "Invalid nested attribute for masks"); | |
1288 | return -EINVAL; | |
1289 | } | |
0a6e7778 PJV |
1290 | } |
1291 | ||
1292 | nla_for_each_attr(nla_opt_key, nla_enc_key, | |
1293 | nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) { | |
1294 | switch (nla_type(nla_opt_key)) { | |
1295 | case TCA_FLOWER_KEY_ENC_OPTS_GENEVE: | |
d8f9dfae XL |
1296 | if (key->enc_opts.dst_opt_type && |
1297 | key->enc_opts.dst_opt_type != TUNNEL_GENEVE_OPT) { | |
1298 | NL_SET_ERR_MSG(extack, "Duplicate type for geneve options"); | |
1299 | return -EINVAL; | |
1300 | } | |
0a6e7778 PJV |
1301 | option_len = 0; |
1302 | key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT; | |
1303 | option_len = fl_set_geneve_opt(nla_opt_key, key, | |
1304 | key_depth, option_len, | |
1305 | extack); | |
1306 | if (option_len < 0) | |
1307 | return option_len; | |
1308 | ||
1309 | key->enc_opts.len += option_len; | |
1310 | /* At the same time we need to parse through the mask | |
1311 | * in order to verify exact and mask attribute lengths. | |
1312 | */ | |
1313 | mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT; | |
1314 | option_len = fl_set_geneve_opt(nla_opt_msk, mask, | |
1315 | msk_depth, option_len, | |
1316 | extack); | |
1317 | if (option_len < 0) | |
1318 | return option_len; | |
1319 | ||
1320 | mask->enc_opts.len += option_len; | |
1321 | if (key->enc_opts.len != mask->enc_opts.len) { | |
1322 | NL_SET_ERR_MSG(extack, "Key and mask miss aligned"); | |
1323 | return -EINVAL; | |
1324 | } | |
d8f9dfae XL |
1325 | break; |
1326 | case TCA_FLOWER_KEY_ENC_OPTS_VXLAN: | |
1327 | if (key->enc_opts.dst_opt_type) { | |
1328 | NL_SET_ERR_MSG(extack, "Duplicate type for vxlan options"); | |
1329 | return -EINVAL; | |
1330 | } | |
1331 | option_len = 0; | |
1332 | key->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT; | |
1333 | option_len = fl_set_vxlan_opt(nla_opt_key, key, | |
1334 | key_depth, option_len, | |
1335 | extack); | |
1336 | if (option_len < 0) | |
1337 | return option_len; | |
1338 | ||
1339 | key->enc_opts.len += option_len; | |
1340 | /* At the same time we need to parse through the mask | |
1341 | * in order to verify exact and mask attribute lengths. | |
1342 | */ | |
1343 | mask->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT; | |
1344 | option_len = fl_set_vxlan_opt(nla_opt_msk, mask, | |
1345 | msk_depth, option_len, | |
1346 | extack); | |
1347 | if (option_len < 0) | |
1348 | return option_len; | |
1349 | ||
1350 | mask->enc_opts.len += option_len; | |
1351 | if (key->enc_opts.len != mask->enc_opts.len) { | |
1352 | NL_SET_ERR_MSG(extack, "Key and mask miss aligned"); | |
1353 | return -EINVAL; | |
1354 | } | |
79b1011c XL |
1355 | break; |
1356 | case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN: | |
1357 | if (key->enc_opts.dst_opt_type) { | |
1358 | NL_SET_ERR_MSG(extack, "Duplicate type for erspan options"); | |
1359 | return -EINVAL; | |
1360 | } | |
1361 | option_len = 0; | |
1362 | key->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT; | |
1363 | option_len = fl_set_erspan_opt(nla_opt_key, key, | |
1364 | key_depth, option_len, | |
1365 | extack); | |
1366 | if (option_len < 0) | |
1367 | return option_len; | |
1368 | ||
1369 | key->enc_opts.len += option_len; | |
1370 | /* At the same time we need to parse through the mask | |
1371 | * in order to verify exact and mask attribute lengths. | |
1372 | */ | |
1373 | mask->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT; | |
1374 | option_len = fl_set_erspan_opt(nla_opt_msk, mask, | |
1375 | msk_depth, option_len, | |
1376 | extack); | |
1377 | if (option_len < 0) | |
1378 | return option_len; | |
1379 | ||
1380 | mask->enc_opts.len += option_len; | |
1381 | if (key->enc_opts.len != mask->enc_opts.len) { | |
1382 | NL_SET_ERR_MSG(extack, "Key and mask miss aligned"); | |
1383 | return -EINVAL; | |
1384 | } | |
0a6e7778 PJV |
1385 | break; |
1386 | default: | |
1387 | NL_SET_ERR_MSG(extack, "Unknown tunnel option type"); | |
1388 | return -EINVAL; | |
1389 | } | |
c96adff9 CW |
1390 | |
1391 | if (!msk_depth) | |
1392 | continue; | |
1393 | ||
1394 | if (!nla_ok(nla_opt_msk, msk_depth)) { | |
1395 | NL_SET_ERR_MSG(extack, "A mask attribute is invalid"); | |
1396 | return -EINVAL; | |
1397 | } | |
1398 | nla_opt_msk = nla_next(nla_opt_msk, &msk_depth); | |
0a6e7778 PJV |
1399 | } |
1400 | ||
1401 | return 0; | |
1402 | } | |
1403 | ||
1bcc51ac | 1404 | static int fl_validate_ct_state(u16 state, struct nlattr *tb, |
1405 | struct netlink_ext_ack *extack) | |
1406 | { | |
1407 | if (state && !(state & TCA_FLOWER_KEY_CT_FLAGS_TRACKED)) { | |
1408 | NL_SET_ERR_MSG_ATTR(extack, tb, | |
1409 | "no trk, so no other flag can be set"); | |
1410 | return -EINVAL; | |
1411 | } | |
1412 | ||
1413 | if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW && | |
1414 | state & TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED) { | |
1415 | NL_SET_ERR_MSG_ATTR(extack, tb, | |
1416 | "new and est are mutually exclusive"); | |
1417 | return -EINVAL; | |
1418 | } | |
1419 | ||
3aed8b63 | 1420 | if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID && |
1421 | state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED | | |
1422 | TCA_FLOWER_KEY_CT_FLAGS_INVALID)) { | |
1423 | NL_SET_ERR_MSG_ATTR(extack, tb, | |
1424 | "when inv is set, only trk may be set"); | |
1425 | return -EINVAL; | |
1426 | } | |
1427 | ||
1428 | if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW && | |
1429 | state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) { | |
1430 | NL_SET_ERR_MSG_ATTR(extack, tb, | |
1431 | "new and rpl are mutually exclusive"); | |
1432 | return -EINVAL; | |
1433 | } | |
1434 | ||
1bcc51ac | 1435 | return 0; |
1436 | } | |
1437 | ||
e0ace68a PB |
1438 | static int fl_set_key_ct(struct nlattr **tb, |
1439 | struct flow_dissector_key_ct *key, | |
1440 | struct flow_dissector_key_ct *mask, | |
1441 | struct netlink_ext_ack *extack) | |
1442 | { | |
1443 | if (tb[TCA_FLOWER_KEY_CT_STATE]) { | |
1bcc51ac | 1444 | int err; |
1445 | ||
e0ace68a PB |
1446 | if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) { |
1447 | NL_SET_ERR_MSG(extack, "Conntrack isn't enabled"); | |
1448 | return -EOPNOTSUPP; | |
1449 | } | |
1450 | fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE, | |
1451 | &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK, | |
1452 | sizeof(key->ct_state)); | |
1bcc51ac | 1453 | |
1454 | err = fl_validate_ct_state(mask->ct_state, | |
1455 | tb[TCA_FLOWER_KEY_CT_STATE_MASK], | |
1456 | extack); | |
1457 | if (err) | |
1458 | return err; | |
1459 | ||
e0ace68a PB |
1460 | } |
1461 | if (tb[TCA_FLOWER_KEY_CT_ZONE]) { | |
1462 | if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) { | |
1463 | NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled"); | |
1464 | return -EOPNOTSUPP; | |
1465 | } | |
1466 | fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE, | |
1467 | &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK, | |
1468 | sizeof(key->ct_zone)); | |
1469 | } | |
1470 | if (tb[TCA_FLOWER_KEY_CT_MARK]) { | |
1471 | if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) { | |
1472 | NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled"); | |
1473 | return -EOPNOTSUPP; | |
1474 | } | |
1475 | fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK, | |
1476 | &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK, | |
1477 | sizeof(key->ct_mark)); | |
1478 | } | |
1479 | if (tb[TCA_FLOWER_KEY_CT_LABELS]) { | |
1480 | if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) { | |
1481 | NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled"); | |
1482 | return -EOPNOTSUPP; | |
1483 | } | |
1484 | fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS, | |
1485 | mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK, | |
1486 | sizeof(key->ct_labels)); | |
1487 | } | |
1488 | ||
1489 | return 0; | |
1490 | } | |
1491 | ||
77b9900e | 1492 | static int fl_set_key(struct net *net, struct nlattr **tb, |
1057c55f AA |
1493 | struct fl_flow_key *key, struct fl_flow_key *mask, |
1494 | struct netlink_ext_ack *extack) | |
77b9900e | 1495 | { |
9399ae9a | 1496 | __be16 ethertype; |
d9724772 | 1497 | int ret = 0; |
a5148626 | 1498 | |
77b9900e | 1499 | if (tb[TCA_FLOWER_INDEV]) { |
1057c55f | 1500 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack); |
77b9900e JP |
1501 | if (err < 0) |
1502 | return err; | |
8212ed77 JP |
1503 | key->meta.ingress_ifindex = err; |
1504 | mask->meta.ingress_ifindex = 0xffffffff; | |
77b9900e JP |
1505 | } |
1506 | ||
1507 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
1508 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1509 | sizeof(key->eth.dst)); | |
1510 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1511 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1512 | sizeof(key->eth.src)); | |
66530bdf | 1513 | |
0b498a52 | 1514 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
1515 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
1516 | ||
aaab0834 | 1517 | if (eth_type_vlan(ethertype)) { |
d64efd09 JL |
1518 | fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID, |
1519 | TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, | |
1520 | &mask->vlan); | |
1521 | ||
5e9a0fe4 JL |
1522 | if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) { |
1523 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]); | |
1524 | if (eth_type_vlan(ethertype)) { | |
1525 | fl_set_key_vlan(tb, ethertype, | |
1526 | TCA_FLOWER_KEY_CVLAN_ID, | |
1527 | TCA_FLOWER_KEY_CVLAN_PRIO, | |
1528 | &key->cvlan, &mask->cvlan); | |
1529 | fl_set_key_val(tb, &key->basic.n_proto, | |
1530 | TCA_FLOWER_KEY_CVLAN_ETH_TYPE, | |
1531 | &mask->basic.n_proto, | |
1532 | TCA_FLOWER_UNSPEC, | |
1533 | sizeof(key->basic.n_proto)); | |
1534 | } else { | |
1535 | key->basic.n_proto = ethertype; | |
1536 | mask->basic.n_proto = cpu_to_be16(~0); | |
1537 | } | |
d64efd09 | 1538 | } |
0b498a52 AB |
1539 | } else { |
1540 | key->basic.n_proto = ethertype; | |
1541 | mask->basic.n_proto = cpu_to_be16(~0); | |
1542 | } | |
9399ae9a | 1543 | } |
66530bdf | 1544 | |
77b9900e JP |
1545 | if (key->basic.n_proto == htons(ETH_P_IP) || |
1546 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
1547 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
1548 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
1549 | sizeof(key->basic.ip_proto)); | |
0e2c17b6 | 1550 | fl_set_key_ip(tb, false, &key->ip, &mask->ip); |
77b9900e | 1551 | } |
66530bdf JHS |
1552 | |
1553 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
1554 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 1555 | mask->control.addr_type = ~0; |
77b9900e JP |
1556 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1557 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1558 | sizeof(key->ipv4.src)); | |
1559 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1560 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1561 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
1562 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
1563 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 1564 | mask->control.addr_type = ~0; |
77b9900e JP |
1565 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1566 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1567 | sizeof(key->ipv6.src)); | |
1568 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1569 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1570 | sizeof(key->ipv6.dst)); | |
1571 | } | |
66530bdf | 1572 | |
77b9900e JP |
1573 | if (key->basic.ip_proto == IPPROTO_TCP) { |
1574 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1575 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1576 | sizeof(key->tp.src)); |
1577 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1578 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 1579 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
1580 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
1581 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1582 | sizeof(key->tcp.flags)); | |
77b9900e JP |
1583 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
1584 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1585 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1586 | sizeof(key->tp.src)); |
1587 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1588 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 1589 | sizeof(key->tp.dst)); |
5976c5f4 SH |
1590 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
1591 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1592 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1593 | sizeof(key->tp.src)); | |
1594 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1595 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
1596 | sizeof(key->tp.dst)); | |
7b684884 SH |
1597 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
1598 | key->basic.ip_proto == IPPROTO_ICMP) { | |
1599 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
1600 | &mask->icmp.type, | |
1601 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1602 | sizeof(key->icmp.type)); | |
1603 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
1604 | &mask->icmp.code, | |
1605 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1606 | sizeof(key->icmp.code)); | |
1607 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1608 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
1609 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
1610 | &mask->icmp.type, | |
1611 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1612 | sizeof(key->icmp.type)); | |
040587af | 1613 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 1614 | &mask->icmp.code, |
040587af | 1615 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 1616 | sizeof(key->icmp.code)); |
a577d8f7 BL |
1617 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
1618 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
442f730e | 1619 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack); |
1a7fca63 BL |
1620 | if (ret) |
1621 | return ret; | |
99d31326 SH |
1622 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
1623 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
1624 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
1625 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1626 | sizeof(key->arp.sip)); | |
1627 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
1628 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1629 | sizeof(key->arp.tip)); | |
1630 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
1631 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
1632 | sizeof(key->arp.op)); | |
1633 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1634 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1635 | sizeof(key->arp.sha)); | |
1636 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1637 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1638 | sizeof(key->arp.tha)); | |
77b9900e JP |
1639 | } |
1640 | ||
5c72299f AN |
1641 | if (key->basic.ip_proto == IPPROTO_TCP || |
1642 | key->basic.ip_proto == IPPROTO_UDP || | |
1643 | key->basic.ip_proto == IPPROTO_SCTP) { | |
bd7d4c12 | 1644 | ret = fl_set_key_port_range(tb, key, mask, extack); |
5c72299f AN |
1645 | if (ret) |
1646 | return ret; | |
1647 | } | |
1648 | ||
bc3103f1 AV |
1649 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
1650 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
1651 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 1652 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
1653 | fl_set_key_val(tb, &key->enc_ipv4.src, |
1654 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
1655 | &mask->enc_ipv4.src, | |
1656 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1657 | sizeof(key->enc_ipv4.src)); | |
1658 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
1659 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
1660 | &mask->enc_ipv4.dst, | |
1661 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1662 | sizeof(key->enc_ipv4.dst)); | |
1663 | } | |
1664 | ||
1665 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
1666 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
1667 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 1668 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
1669 | fl_set_key_val(tb, &key->enc_ipv6.src, |
1670 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
1671 | &mask->enc_ipv6.src, | |
1672 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1673 | sizeof(key->enc_ipv6.src)); | |
1674 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
1675 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1676 | &mask->enc_ipv6.dst, | |
1677 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1678 | sizeof(key->enc_ipv6.dst)); | |
1679 | } | |
1680 | ||
1681 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1682 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
1683 | sizeof(key->enc_key_id.keyid)); |
1684 | ||
f4d997fd HHZ |
1685 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
1686 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1687 | sizeof(key->enc_tp.src)); | |
1688 | ||
1689 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1690 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1691 | sizeof(key->enc_tp.dst)); | |
1692 | ||
0e2c17b6 OG |
1693 | fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip); |
1694 | ||
5923b8f7 AL |
1695 | fl_set_key_val(tb, &key->hash.hash, TCA_FLOWER_KEY_HASH, |
1696 | &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK, | |
1697 | sizeof(key->hash.hash)); | |
1698 | ||
0a6e7778 PJV |
1699 | if (tb[TCA_FLOWER_KEY_ENC_OPTS]) { |
1700 | ret = fl_set_enc_opt(tb, key, mask, extack); | |
1701 | if (ret) | |
1702 | return ret; | |
1703 | } | |
1704 | ||
e0ace68a PB |
1705 | ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack); |
1706 | if (ret) | |
1707 | return ret; | |
1708 | ||
d9724772 | 1709 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
e304e21a GN |
1710 | ret = fl_set_key_flags(tb, &key->control.flags, |
1711 | &mask->control.flags, extack); | |
faa3ffce | 1712 | |
d9724772 | 1713 | return ret; |
77b9900e JP |
1714 | } |
1715 | ||
05cd271f PB |
1716 | static void fl_mask_copy(struct fl_flow_mask *dst, |
1717 | struct fl_flow_mask *src) | |
77b9900e | 1718 | { |
05cd271f PB |
1719 | const void *psrc = fl_key_get_start(&src->key, src); |
1720 | void *pdst = fl_key_get_start(&dst->key, src); | |
77b9900e | 1721 | |
05cd271f PB |
1722 | memcpy(pdst, psrc, fl_mask_range(src)); |
1723 | dst->range = src->range; | |
77b9900e JP |
1724 | } |
1725 | ||
1726 | static const struct rhashtable_params fl_ht_params = { | |
1727 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
1728 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
1729 | .automatic_shrinking = true, | |
1730 | }; | |
1731 | ||
05cd271f | 1732 | static int fl_init_mask_hashtable(struct fl_flow_mask *mask) |
77b9900e | 1733 | { |
05cd271f PB |
1734 | mask->filter_ht_params = fl_ht_params; |
1735 | mask->filter_ht_params.key_len = fl_mask_range(mask); | |
1736 | mask->filter_ht_params.key_offset += mask->range.start; | |
77b9900e | 1737 | |
05cd271f | 1738 | return rhashtable_init(&mask->ht, &mask->filter_ht_params); |
77b9900e JP |
1739 | } |
1740 | ||
1741 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
c593642c | 1742 | #define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member) |
77b9900e | 1743 | |
339ba878 HHZ |
1744 | #define FL_KEY_IS_MASKED(mask, member) \ |
1745 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
1746 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
1747 | |
1748 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
1749 | do { \ | |
1750 | keys[cnt].key_id = id; \ | |
1751 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
1752 | cnt++; \ | |
1753 | } while(0); | |
1754 | ||
339ba878 | 1755 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 1756 | do { \ |
339ba878 | 1757 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
1758 | FL_KEY_SET(keys, cnt, id, member); \ |
1759 | } while(0); | |
1760 | ||
33fb5cba JP |
1761 | static void fl_init_dissector(struct flow_dissector *dissector, |
1762 | struct fl_flow_key *mask) | |
77b9900e JP |
1763 | { |
1764 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
1765 | size_t cnt = 0; | |
1766 | ||
8212ed77 JP |
1767 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
1768 | FLOW_DISSECTOR_KEY_META, meta); | |
42aecaa9 | 1769 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 1770 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
33fb5cba | 1771 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
339ba878 | 1772 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); |
33fb5cba | 1773 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
339ba878 | 1774 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); |
33fb5cba | 1775 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
339ba878 | 1776 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); |
8ffb055b YK |
1777 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
1778 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
1779 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, | |
1780 | FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range); | |
33fb5cba | 1781 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
4d80cc0a | 1782 | FLOW_DISSECTOR_KEY_IP, ip); |
33fb5cba | 1783 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
fdfc7dd6 | 1784 | FLOW_DISSECTOR_KEY_TCP, tcp); |
33fb5cba | 1785 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
7b684884 | 1786 | FLOW_DISSECTOR_KEY_ICMP, icmp); |
33fb5cba | 1787 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
99d31326 | 1788 | FLOW_DISSECTOR_KEY_ARP, arp); |
33fb5cba | 1789 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
a577d8f7 | 1790 | FLOW_DISSECTOR_KEY_MPLS, mpls); |
33fb5cba | 1791 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
9399ae9a | 1792 | FLOW_DISSECTOR_KEY_VLAN, vlan); |
33fb5cba | 1793 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
d64efd09 | 1794 | FLOW_DISSECTOR_KEY_CVLAN, cvlan); |
33fb5cba | 1795 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
519d1052 | 1796 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); |
33fb5cba | 1797 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
519d1052 | 1798 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); |
33fb5cba | 1799 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
519d1052 | 1800 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); |
33fb5cba JP |
1801 | if (FL_KEY_IS_MASKED(mask, enc_ipv4) || |
1802 | FL_KEY_IS_MASKED(mask, enc_ipv6)) | |
519d1052 HHZ |
1803 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, |
1804 | enc_control); | |
33fb5cba | 1805 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
f4d997fd | 1806 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); |
33fb5cba | 1807 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
0e2c17b6 | 1808 | FLOW_DISSECTOR_KEY_ENC_IP, enc_ip); |
0a6e7778 PJV |
1809 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
1810 | FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts); | |
e0ace68a PB |
1811 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
1812 | FLOW_DISSECTOR_KEY_CT, ct); | |
5923b8f7 AL |
1813 | FL_KEY_SET_IF_MASKED(mask, keys, cnt, |
1814 | FLOW_DISSECTOR_KEY_HASH, hash); | |
77b9900e | 1815 | |
33fb5cba | 1816 | skb_flow_dissector_init(dissector, keys, cnt); |
05cd271f PB |
1817 | } |
1818 | ||
1819 | static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head, | |
1820 | struct fl_flow_mask *mask) | |
1821 | { | |
1822 | struct fl_flow_mask *newmask; | |
1823 | int err; | |
1824 | ||
1825 | newmask = kzalloc(sizeof(*newmask), GFP_KERNEL); | |
1826 | if (!newmask) | |
1827 | return ERR_PTR(-ENOMEM); | |
1828 | ||
1829 | fl_mask_copy(newmask, mask); | |
1830 | ||
8ffb055b YK |
1831 | if ((newmask->key.tp_range.tp_min.dst && |
1832 | newmask->key.tp_range.tp_max.dst) || | |
1833 | (newmask->key.tp_range.tp_min.src && | |
1834 | newmask->key.tp_range.tp_max.src)) | |
5c72299f AN |
1835 | newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE; |
1836 | ||
05cd271f PB |
1837 | err = fl_init_mask_hashtable(newmask); |
1838 | if (err) | |
1839 | goto errout_free; | |
1840 | ||
33fb5cba | 1841 | fl_init_dissector(&newmask->dissector, &newmask->key); |
05cd271f PB |
1842 | |
1843 | INIT_LIST_HEAD_RCU(&newmask->filters); | |
1844 | ||
f48ef4d5 | 1845 | refcount_set(&newmask->refcnt, 1); |
195c234d VB |
1846 | err = rhashtable_replace_fast(&head->ht, &mask->ht_node, |
1847 | &newmask->ht_node, mask_ht_params); | |
05cd271f PB |
1848 | if (err) |
1849 | goto errout_destroy; | |
1850 | ||
259e60f9 | 1851 | spin_lock(&head->masks_lock); |
05cd271f | 1852 | list_add_tail_rcu(&newmask->list, &head->masks); |
259e60f9 | 1853 | spin_unlock(&head->masks_lock); |
05cd271f PB |
1854 | |
1855 | return newmask; | |
1856 | ||
1857 | errout_destroy: | |
1858 | rhashtable_destroy(&newmask->ht); | |
1859 | errout_free: | |
1860 | kfree(newmask); | |
1861 | ||
1862 | return ERR_PTR(err); | |
77b9900e JP |
1863 | } |
1864 | ||
1865 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
05cd271f PB |
1866 | struct cls_fl_filter *fnew, |
1867 | struct cls_fl_filter *fold, | |
77b9900e JP |
1868 | struct fl_flow_mask *mask) |
1869 | { | |
05cd271f | 1870 | struct fl_flow_mask *newmask; |
f48ef4d5 | 1871 | int ret = 0; |
77b9900e | 1872 | |
f48ef4d5 | 1873 | rcu_read_lock(); |
195c234d VB |
1874 | |
1875 | /* Insert mask as temporary node to prevent concurrent creation of mask | |
1876 | * with same key. Any concurrent lookups with same key will return | |
99815f50 | 1877 | * -EAGAIN because mask's refcnt is zero. |
195c234d VB |
1878 | */ |
1879 | fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht, | |
1880 | &mask->ht_node, | |
1881 | mask_ht_params); | |
05cd271f | 1882 | if (!fnew->mask) { |
f48ef4d5 VB |
1883 | rcu_read_unlock(); |
1884 | ||
195c234d VB |
1885 | if (fold) { |
1886 | ret = -EINVAL; | |
1887 | goto errout_cleanup; | |
1888 | } | |
77b9900e | 1889 | |
05cd271f | 1890 | newmask = fl_create_new_mask(head, mask); |
195c234d VB |
1891 | if (IS_ERR(newmask)) { |
1892 | ret = PTR_ERR(newmask); | |
1893 | goto errout_cleanup; | |
1894 | } | |
77b9900e | 1895 | |
05cd271f | 1896 | fnew->mask = newmask; |
f48ef4d5 | 1897 | return 0; |
195c234d VB |
1898 | } else if (IS_ERR(fnew->mask)) { |
1899 | ret = PTR_ERR(fnew->mask); | |
f6521c58 | 1900 | } else if (fold && fold->mask != fnew->mask) { |
f48ef4d5 VB |
1901 | ret = -EINVAL; |
1902 | } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) { | |
1903 | /* Mask was deleted concurrently, try again */ | |
1904 | ret = -EAGAIN; | |
05cd271f | 1905 | } |
f48ef4d5 VB |
1906 | rcu_read_unlock(); |
1907 | return ret; | |
195c234d VB |
1908 | |
1909 | errout_cleanup: | |
1910 | rhashtable_remove_fast(&head->ht, &mask->ht_node, | |
1911 | mask_ht_params); | |
195c234d | 1912 | return ret; |
77b9900e JP |
1913 | } |
1914 | ||
1915 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
1916 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
1917 | unsigned long base, struct nlattr **tb, | |
50a56190 | 1918 | struct nlattr *est, bool ovr, |
c24e43d8 | 1919 | struct fl_flow_tmplt *tmplt, bool rtnl_held, |
50a56190 | 1920 | struct netlink_ext_ack *extack) |
77b9900e | 1921 | { |
77b9900e JP |
1922 | int err; |
1923 | ||
c24e43d8 | 1924 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, rtnl_held, |
ec6743a1 | 1925 | extack); |
77b9900e JP |
1926 | if (err < 0) |
1927 | return err; | |
1928 | ||
1929 | if (tb[TCA_FLOWER_CLASSID]) { | |
1930 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
c24e43d8 VB |
1931 | if (!rtnl_held) |
1932 | rtnl_lock(); | |
77b9900e | 1933 | tcf_bind_filter(tp, &f->res, base); |
c24e43d8 VB |
1934 | if (!rtnl_held) |
1935 | rtnl_unlock(); | |
77b9900e JP |
1936 | } |
1937 | ||
1057c55f | 1938 | err = fl_set_key(net, tb, &f->key, &mask->key, extack); |
77b9900e | 1939 | if (err) |
45507529 | 1940 | return err; |
77b9900e JP |
1941 | |
1942 | fl_mask_update_range(mask); | |
1943 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
1944 | ||
b95ec7eb JP |
1945 | if (!fl_mask_fits_tmplt(tmplt, mask)) { |
1946 | NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template"); | |
1947 | return -EINVAL; | |
1948 | } | |
1949 | ||
77b9900e | 1950 | return 0; |
77b9900e JP |
1951 | } |
1952 | ||
1f17f774 VB |
1953 | static int fl_ht_insert_unique(struct cls_fl_filter *fnew, |
1954 | struct cls_fl_filter *fold, | |
1955 | bool *in_ht) | |
1956 | { | |
1957 | struct fl_flow_mask *mask = fnew->mask; | |
1958 | int err; | |
1959 | ||
9e35552a VB |
1960 | err = rhashtable_lookup_insert_fast(&mask->ht, |
1961 | &fnew->ht_node, | |
1962 | mask->filter_ht_params); | |
1f17f774 VB |
1963 | if (err) { |
1964 | *in_ht = false; | |
1965 | /* It is okay if filter with same key exists when | |
1966 | * overwriting. | |
1967 | */ | |
1968 | return fold && err == -EEXIST ? 0 : err; | |
1969 | } | |
1970 | ||
1971 | *in_ht = true; | |
1972 | return 0; | |
1973 | } | |
1974 | ||
77b9900e JP |
1975 | static int fl_change(struct net *net, struct sk_buff *in_skb, |
1976 | struct tcf_proto *tp, unsigned long base, | |
1977 | u32 handle, struct nlattr **tca, | |
12db03b6 VB |
1978 | void **arg, bool ovr, bool rtnl_held, |
1979 | struct netlink_ext_ack *extack) | |
77b9900e | 1980 | { |
e474619a | 1981 | struct cls_fl_head *head = fl_head_dereference(tp); |
8113c095 | 1982 | struct cls_fl_filter *fold = *arg; |
77b9900e | 1983 | struct cls_fl_filter *fnew; |
2cddd201 | 1984 | struct fl_flow_mask *mask; |
39b7b6a6 | 1985 | struct nlattr **tb; |
1f17f774 | 1986 | bool in_ht; |
77b9900e JP |
1987 | int err; |
1988 | ||
06177558 VB |
1989 | if (!tca[TCA_OPTIONS]) { |
1990 | err = -EINVAL; | |
1991 | goto errout_fold; | |
1992 | } | |
77b9900e | 1993 | |
2cddd201 | 1994 | mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL); |
06177558 VB |
1995 | if (!mask) { |
1996 | err = -ENOBUFS; | |
1997 | goto errout_fold; | |
1998 | } | |
39b7b6a6 | 1999 | |
2cddd201 IV |
2000 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
2001 | if (!tb) { | |
2002 | err = -ENOBUFS; | |
2003 | goto errout_mask_alloc; | |
2004 | } | |
2005 | ||
8cb08174 JB |
2006 | err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX, |
2007 | tca[TCA_OPTIONS], fl_policy, NULL); | |
77b9900e | 2008 | if (err < 0) |
39b7b6a6 | 2009 | goto errout_tb; |
77b9900e | 2010 | |
39b7b6a6 AB |
2011 | if (fold && handle && fold->handle != handle) { |
2012 | err = -EINVAL; | |
2013 | goto errout_tb; | |
2014 | } | |
77b9900e JP |
2015 | |
2016 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
2017 | if (!fnew) { |
2018 | err = -ENOBUFS; | |
2019 | goto errout_tb; | |
2020 | } | |
c049d56e | 2021 | INIT_LIST_HEAD(&fnew->hw_list); |
06177558 | 2022 | refcount_set(&fnew->refcnt, 1); |
77b9900e | 2023 | |
14215108 | 2024 | err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0); |
b9a24bb7 WC |
2025 | if (err < 0) |
2026 | goto errout; | |
77b9900e | 2027 | |
e69985c6 AV |
2028 | if (tb[TCA_FLOWER_FLAGS]) { |
2029 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
2030 | ||
2031 | if (!tc_flags_valid(fnew->flags)) { | |
2032 | err = -EINVAL; | |
ecb3dea4 | 2033 | goto errout; |
e69985c6 AV |
2034 | } |
2035 | } | |
5b33f488 | 2036 | |
2cddd201 | 2037 | err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr, |
c24e43d8 | 2038 | tp->chain->tmplt_priv, rtnl_held, extack); |
77b9900e | 2039 | if (err) |
ecb3dea4 | 2040 | goto errout; |
77b9900e | 2041 | |
2cddd201 | 2042 | err = fl_check_assign_mask(head, fnew, fold, mask); |
77b9900e | 2043 | if (err) |
ecb3dea4 VB |
2044 | goto errout; |
2045 | ||
1f17f774 VB |
2046 | err = fl_ht_insert_unique(fnew, fold, &in_ht); |
2047 | if (err) | |
2048 | goto errout_mask; | |
2049 | ||
79685219 | 2050 | if (!tc_skip_hw(fnew->flags)) { |
c24e43d8 | 2051 | err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack); |
79685219 | 2052 | if (err) |
1f17f774 | 2053 | goto errout_ht; |
79685219 | 2054 | } |
5b33f488 | 2055 | |
55593960 OG |
2056 | if (!tc_in_hw(fnew->flags)) |
2057 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
2058 | ||
3d81e711 VB |
2059 | spin_lock(&tp->lock); |
2060 | ||
272ffaad VB |
2061 | /* tp was deleted concurrently. -EAGAIN will cause caller to lookup |
2062 | * proto again or create new one, if necessary. | |
2063 | */ | |
2064 | if (tp->deleting) { | |
2065 | err = -EAGAIN; | |
2066 | goto errout_hw; | |
2067 | } | |
2068 | ||
5b33f488 | 2069 | if (fold) { |
b2552b8c VB |
2070 | /* Fold filter was deleted concurrently. Retry lookup. */ |
2071 | if (fold->deleted) { | |
2072 | err = -EAGAIN; | |
2073 | goto errout_hw; | |
2074 | } | |
2075 | ||
620da486 VB |
2076 | fnew->handle = handle; |
2077 | ||
1f17f774 VB |
2078 | if (!in_ht) { |
2079 | struct rhashtable_params params = | |
2080 | fnew->mask->filter_ht_params; | |
2081 | ||
2082 | err = rhashtable_insert_fast(&fnew->mask->ht, | |
2083 | &fnew->ht_node, | |
2084 | params); | |
2085 | if (err) | |
2086 | goto errout_hw; | |
2087 | in_ht = true; | |
2088 | } | |
620da486 | 2089 | |
c049d56e | 2090 | refcount_inc(&fnew->refcnt); |
599d2570 RD |
2091 | rhashtable_remove_fast(&fold->mask->ht, |
2092 | &fold->ht_node, | |
2093 | fold->mask->filter_ht_params); | |
234a4624 | 2094 | idr_replace(&head->handle_idr, fnew, fnew->handle); |
ff3532f2 | 2095 | list_replace_rcu(&fold->list, &fnew->list); |
b2552b8c | 2096 | fold->deleted = true; |
620da486 | 2097 | |
3d81e711 VB |
2098 | spin_unlock(&tp->lock); |
2099 | ||
9994677c | 2100 | fl_mask_put(head, fold->mask); |
620da486 | 2101 | if (!tc_skip_hw(fold->flags)) |
c24e43d8 | 2102 | fl_hw_destroy_filter(tp, fold, rtnl_held, NULL); |
77b9900e | 2103 | tcf_unbind_filter(tp, &fold->res); |
06177558 VB |
2104 | /* Caller holds reference to fold, so refcnt is always > 0 |
2105 | * after this. | |
2106 | */ | |
2107 | refcount_dec(&fold->refcnt); | |
2108 | __fl_put(fold); | |
77b9900e | 2109 | } else { |
620da486 VB |
2110 | if (handle) { |
2111 | /* user specifies a handle and it doesn't exist */ | |
2112 | err = idr_alloc_u32(&head->handle_idr, fnew, &handle, | |
2113 | handle, GFP_ATOMIC); | |
9a2d9389 VB |
2114 | |
2115 | /* Filter with specified handle was concurrently | |
2116 | * inserted after initial check in cls_api. This is not | |
2117 | * necessarily an error if NLM_F_EXCL is not set in | |
2118 | * message flags. Returning EAGAIN will cause cls_api to | |
2119 | * try to update concurrently inserted rule. | |
2120 | */ | |
2121 | if (err == -ENOSPC) | |
2122 | err = -EAGAIN; | |
620da486 VB |
2123 | } else { |
2124 | handle = 1; | |
2125 | err = idr_alloc_u32(&head->handle_idr, fnew, &handle, | |
2126 | INT_MAX, GFP_ATOMIC); | |
2127 | } | |
2128 | if (err) | |
2129 | goto errout_hw; | |
2130 | ||
c049d56e | 2131 | refcount_inc(&fnew->refcnt); |
620da486 | 2132 | fnew->handle = handle; |
05cd271f | 2133 | list_add_tail_rcu(&fnew->list, &fnew->mask->filters); |
3d81e711 | 2134 | spin_unlock(&tp->lock); |
77b9900e JP |
2135 | } |
2136 | ||
620da486 VB |
2137 | *arg = fnew; |
2138 | ||
39b7b6a6 | 2139 | kfree(tb); |
99815f50 | 2140 | tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work); |
77b9900e JP |
2141 | return 0; |
2142 | ||
c049d56e VB |
2143 | errout_ht: |
2144 | spin_lock(&tp->lock); | |
620da486 | 2145 | errout_hw: |
c049d56e | 2146 | fnew->deleted = true; |
3d81e711 | 2147 | spin_unlock(&tp->lock); |
620da486 | 2148 | if (!tc_skip_hw(fnew->flags)) |
c24e43d8 | 2149 | fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL); |
1f17f774 VB |
2150 | if (in_ht) |
2151 | rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node, | |
2152 | fnew->mask->filter_ht_params); | |
ecb3dea4 | 2153 | errout_mask: |
9994677c | 2154 | fl_mask_put(head, fnew->mask); |
77b9900e | 2155 | errout: |
c049d56e | 2156 | __fl_put(fnew); |
39b7b6a6 AB |
2157 | errout_tb: |
2158 | kfree(tb); | |
2cddd201 | 2159 | errout_mask_alloc: |
99815f50 | 2160 | tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work); |
06177558 VB |
2161 | errout_fold: |
2162 | if (fold) | |
2163 | __fl_put(fold); | |
77b9900e JP |
2164 | return err; |
2165 | } | |
2166 | ||
571acf21 | 2167 | static int fl_delete(struct tcf_proto *tp, void *arg, bool *last, |
12db03b6 | 2168 | bool rtnl_held, struct netlink_ext_ack *extack) |
77b9900e | 2169 | { |
e474619a | 2170 | struct cls_fl_head *head = fl_head_dereference(tp); |
8113c095 | 2171 | struct cls_fl_filter *f = arg; |
b2552b8c VB |
2172 | bool last_on_mask; |
2173 | int err = 0; | |
77b9900e | 2174 | |
c24e43d8 | 2175 | err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack); |
05cd271f | 2176 | *last = list_empty(&head->masks); |
06177558 VB |
2177 | __fl_put(f); |
2178 | ||
b2552b8c | 2179 | return err; |
77b9900e JP |
2180 | } |
2181 | ||
12db03b6 VB |
2182 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg, |
2183 | bool rtnl_held) | |
77b9900e | 2184 | { |
d39d7149 CW |
2185 | struct cls_fl_head *head = fl_head_dereference(tp); |
2186 | unsigned long id = arg->cookie, tmp; | |
77b9900e | 2187 | struct cls_fl_filter *f; |
05cd271f | 2188 | |
01683a14 VB |
2189 | arg->count = arg->skip; |
2190 | ||
d39d7149 CW |
2191 | idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) { |
2192 | /* don't return filters that are being deleted */ | |
2193 | if (!refcount_inc_not_zero(&f->refcnt)) | |
2194 | continue; | |
01683a14 | 2195 | if (arg->fn(tp, f, arg) < 0) { |
06177558 | 2196 | __fl_put(f); |
01683a14 VB |
2197 | arg->stop = 1; |
2198 | break; | |
05cd271f | 2199 | } |
06177558 | 2200 | __fl_put(f); |
01683a14 | 2201 | arg->count++; |
77b9900e | 2202 | } |
d39d7149 | 2203 | arg->cookie = id; |
77b9900e JP |
2204 | } |
2205 | ||
c049d56e VB |
2206 | static struct cls_fl_filter * |
2207 | fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add) | |
2208 | { | |
2209 | struct cls_fl_head *head = fl_head_dereference(tp); | |
2210 | ||
2211 | spin_lock(&tp->lock); | |
2212 | if (list_empty(&head->hw_filters)) { | |
2213 | spin_unlock(&tp->lock); | |
2214 | return NULL; | |
2215 | } | |
2216 | ||
2217 | if (!f) | |
2218 | f = list_entry(&head->hw_filters, struct cls_fl_filter, | |
2219 | hw_list); | |
2220 | list_for_each_entry_continue(f, &head->hw_filters, hw_list) { | |
2221 | if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) { | |
2222 | spin_unlock(&tp->lock); | |
2223 | return f; | |
2224 | } | |
2225 | } | |
2226 | ||
2227 | spin_unlock(&tp->lock); | |
2228 | return NULL; | |
2229 | } | |
2230 | ||
a7323311 | 2231 | static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb, |
31533cba JH |
2232 | void *cb_priv, struct netlink_ext_ack *extack) |
2233 | { | |
31533cba | 2234 | struct tcf_block *block = tp->chain->block; |
f9e30088 | 2235 | struct flow_cls_offload cls_flower = {}; |
c049d56e | 2236 | struct cls_fl_filter *f = NULL; |
31533cba JH |
2237 | int err; |
2238 | ||
c049d56e VB |
2239 | /* hw_filters list can only be changed by hw offload functions after |
2240 | * obtaining rtnl lock. Make sure it is not changed while reoffload is | |
2241 | * iterating it. | |
2242 | */ | |
2243 | ASSERT_RTNL(); | |
3a7b6861 | 2244 | |
c049d56e | 2245 | while ((f = fl_get_next_hw_filter(tp, f, add))) { |
95e27a4d JH |
2246 | cls_flower.rule = |
2247 | flow_rule_alloc(tcf_exts_num_actions(&f->exts)); | |
2248 | if (!cls_flower.rule) { | |
2249 | __fl_put(f); | |
2250 | return -ENOMEM; | |
2251 | } | |
31533cba | 2252 | |
95e27a4d | 2253 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, |
d6787147 | 2254 | extack); |
95e27a4d | 2255 | cls_flower.command = add ? |
f9e30088 | 2256 | FLOW_CLS_REPLACE : FLOW_CLS_DESTROY; |
95e27a4d JH |
2257 | cls_flower.cookie = (unsigned long)f; |
2258 | cls_flower.rule->match.dissector = &f->mask->dissector; | |
2259 | cls_flower.rule->match.mask = &f->mask->key; | |
2260 | cls_flower.rule->match.key = &f->mkey; | |
2261 | ||
b15e7a6e | 2262 | err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts); |
95e27a4d | 2263 | if (err) { |
8f256622 | 2264 | kfree(cls_flower.rule); |
95e27a4d JH |
2265 | if (tc_skip_sw(f->flags)) { |
2266 | NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action"); | |
2267 | __fl_put(f); | |
2268 | return err; | |
31533cba | 2269 | } |
95e27a4d JH |
2270 | goto next_flow; |
2271 | } | |
31533cba | 2272 | |
95e27a4d JH |
2273 | cls_flower.classid = f->res.classid; |
2274 | ||
40119211 VB |
2275 | err = tc_setup_cb_reoffload(block, tp, add, cb, |
2276 | TC_SETUP_CLSFLOWER, &cls_flower, | |
2277 | cb_priv, &f->flags, | |
2278 | &f->in_hw_count); | |
5a6ff4b1 | 2279 | tc_cleanup_flow_action(&cls_flower.rule->action); |
95e27a4d JH |
2280 | kfree(cls_flower.rule); |
2281 | ||
2282 | if (err) { | |
40119211 VB |
2283 | __fl_put(f); |
2284 | return err; | |
31533cba | 2285 | } |
95e27a4d | 2286 | next_flow: |
95e27a4d | 2287 | __fl_put(f); |
31533cba JH |
2288 | } |
2289 | ||
2290 | return 0; | |
2291 | } | |
2292 | ||
a449a3e7 VB |
2293 | static void fl_hw_add(struct tcf_proto *tp, void *type_data) |
2294 | { | |
2295 | struct flow_cls_offload *cls_flower = type_data; | |
2296 | struct cls_fl_filter *f = | |
2297 | (struct cls_fl_filter *) cls_flower->cookie; | |
2298 | struct cls_fl_head *head = fl_head_dereference(tp); | |
2299 | ||
2300 | spin_lock(&tp->lock); | |
2301 | list_add(&f->hw_list, &head->hw_filters); | |
2302 | spin_unlock(&tp->lock); | |
2303 | } | |
2304 | ||
2305 | static void fl_hw_del(struct tcf_proto *tp, void *type_data) | |
2306 | { | |
2307 | struct flow_cls_offload *cls_flower = type_data; | |
2308 | struct cls_fl_filter *f = | |
2309 | (struct cls_fl_filter *) cls_flower->cookie; | |
2310 | ||
2311 | spin_lock(&tp->lock); | |
2312 | if (!list_empty(&f->hw_list)) | |
2313 | list_del_init(&f->hw_list); | |
2314 | spin_unlock(&tp->lock); | |
2315 | } | |
2316 | ||
8f256622 PNA |
2317 | static int fl_hw_create_tmplt(struct tcf_chain *chain, |
2318 | struct fl_flow_tmplt *tmplt) | |
34738452 | 2319 | { |
f9e30088 | 2320 | struct flow_cls_offload cls_flower = {}; |
34738452 | 2321 | struct tcf_block *block = chain->block; |
34738452 | 2322 | |
e3ab786b | 2323 | cls_flower.rule = flow_rule_alloc(0); |
8f256622 PNA |
2324 | if (!cls_flower.rule) |
2325 | return -ENOMEM; | |
2326 | ||
34738452 | 2327 | cls_flower.common.chain_index = chain->index; |
f9e30088 | 2328 | cls_flower.command = FLOW_CLS_TMPLT_CREATE; |
34738452 | 2329 | cls_flower.cookie = (unsigned long) tmplt; |
8f256622 PNA |
2330 | cls_flower.rule->match.dissector = &tmplt->dissector; |
2331 | cls_flower.rule->match.mask = &tmplt->mask; | |
2332 | cls_flower.rule->match.key = &tmplt->dummy_key; | |
34738452 JP |
2333 | |
2334 | /* We don't care if driver (any of them) fails to handle this | |
2335 | * call. It serves just as a hint for it. | |
2336 | */ | |
40119211 | 2337 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true); |
8f256622 PNA |
2338 | kfree(cls_flower.rule); |
2339 | ||
2340 | return 0; | |
34738452 JP |
2341 | } |
2342 | ||
2343 | static void fl_hw_destroy_tmplt(struct tcf_chain *chain, | |
2344 | struct fl_flow_tmplt *tmplt) | |
2345 | { | |
f9e30088 | 2346 | struct flow_cls_offload cls_flower = {}; |
34738452 JP |
2347 | struct tcf_block *block = chain->block; |
2348 | ||
2349 | cls_flower.common.chain_index = chain->index; | |
f9e30088 | 2350 | cls_flower.command = FLOW_CLS_TMPLT_DESTROY; |
34738452 JP |
2351 | cls_flower.cookie = (unsigned long) tmplt; |
2352 | ||
40119211 | 2353 | tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true); |
34738452 JP |
2354 | } |
2355 | ||
b95ec7eb JP |
2356 | static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain, |
2357 | struct nlattr **tca, | |
2358 | struct netlink_ext_ack *extack) | |
2359 | { | |
2360 | struct fl_flow_tmplt *tmplt; | |
2361 | struct nlattr **tb; | |
2362 | int err; | |
2363 | ||
2364 | if (!tca[TCA_OPTIONS]) | |
2365 | return ERR_PTR(-EINVAL); | |
2366 | ||
2367 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); | |
2368 | if (!tb) | |
2369 | return ERR_PTR(-ENOBUFS); | |
8cb08174 JB |
2370 | err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX, |
2371 | tca[TCA_OPTIONS], fl_policy, NULL); | |
b95ec7eb JP |
2372 | if (err) |
2373 | goto errout_tb; | |
2374 | ||
2375 | tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL); | |
1cbc36a5 DC |
2376 | if (!tmplt) { |
2377 | err = -ENOMEM; | |
b95ec7eb | 2378 | goto errout_tb; |
1cbc36a5 | 2379 | } |
b95ec7eb JP |
2380 | tmplt->chain = chain; |
2381 | err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack); | |
2382 | if (err) | |
2383 | goto errout_tmplt; | |
b95ec7eb JP |
2384 | |
2385 | fl_init_dissector(&tmplt->dissector, &tmplt->mask); | |
2386 | ||
8f256622 PNA |
2387 | err = fl_hw_create_tmplt(chain, tmplt); |
2388 | if (err) | |
2389 | goto errout_tmplt; | |
34738452 | 2390 | |
8f256622 | 2391 | kfree(tb); |
b95ec7eb JP |
2392 | return tmplt; |
2393 | ||
2394 | errout_tmplt: | |
2395 | kfree(tmplt); | |
2396 | errout_tb: | |
2397 | kfree(tb); | |
2398 | return ERR_PTR(err); | |
2399 | } | |
2400 | ||
ec3ed293 VB |
2401 | static void fl_tmplt_destroy(void *tmplt_priv) |
2402 | { | |
2403 | struct fl_flow_tmplt *tmplt = tmplt_priv; | |
2404 | ||
95278dda CW |
2405 | fl_hw_destroy_tmplt(tmplt->chain, tmplt); |
2406 | kfree(tmplt); | |
ec3ed293 VB |
2407 | } |
2408 | ||
77b9900e JP |
2409 | static int fl_dump_key_val(struct sk_buff *skb, |
2410 | void *val, int val_type, | |
2411 | void *mask, int mask_type, int len) | |
2412 | { | |
2413 | int err; | |
2414 | ||
2415 | if (!memchr_inv(mask, 0, len)) | |
2416 | return 0; | |
2417 | err = nla_put(skb, val_type, len, val); | |
2418 | if (err) | |
2419 | return err; | |
2420 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
2421 | err = nla_put(skb, mask_type, len, mask); | |
2422 | if (err) | |
2423 | return err; | |
2424 | } | |
2425 | return 0; | |
2426 | } | |
2427 | ||
5c72299f AN |
2428 | static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key, |
2429 | struct fl_flow_key *mask) | |
2430 | { | |
8ffb055b YK |
2431 | if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst, |
2432 | TCA_FLOWER_KEY_PORT_DST_MIN, | |
2433 | &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC, | |
2434 | sizeof(key->tp_range.tp_min.dst)) || | |
2435 | fl_dump_key_val(skb, &key->tp_range.tp_max.dst, | |
2436 | TCA_FLOWER_KEY_PORT_DST_MAX, | |
2437 | &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC, | |
2438 | sizeof(key->tp_range.tp_max.dst)) || | |
2439 | fl_dump_key_val(skb, &key->tp_range.tp_min.src, | |
2440 | TCA_FLOWER_KEY_PORT_SRC_MIN, | |
2441 | &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC, | |
2442 | sizeof(key->tp_range.tp_min.src)) || | |
2443 | fl_dump_key_val(skb, &key->tp_range.tp_max.src, | |
2444 | TCA_FLOWER_KEY_PORT_SRC_MAX, | |
2445 | &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC, | |
2446 | sizeof(key->tp_range.tp_max.src))) | |
5c72299f AN |
2447 | return -1; |
2448 | ||
2449 | return 0; | |
2450 | } | |
2451 | ||
61aec25a GN |
2452 | static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb, |
2453 | struct flow_dissector_key_mpls *mpls_key, | |
2454 | struct flow_dissector_key_mpls *mpls_mask, | |
2455 | u8 lse_index) | |
2456 | { | |
2457 | struct flow_dissector_mpls_lse *lse_mask = &mpls_mask->ls[lse_index]; | |
2458 | struct flow_dissector_mpls_lse *lse_key = &mpls_key->ls[lse_index]; | |
2459 | int err; | |
2460 | ||
2461 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH, | |
2462 | lse_index + 1); | |
2463 | if (err) | |
2464 | return err; | |
2465 | ||
2466 | if (lse_mask->mpls_ttl) { | |
2467 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL, | |
2468 | lse_key->mpls_ttl); | |
2469 | if (err) | |
2470 | return err; | |
2471 | } | |
2472 | if (lse_mask->mpls_bos) { | |
2473 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS, | |
2474 | lse_key->mpls_bos); | |
2475 | if (err) | |
2476 | return err; | |
2477 | } | |
2478 | if (lse_mask->mpls_tc) { | |
2479 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TC, | |
2480 | lse_key->mpls_tc); | |
2481 | if (err) | |
2482 | return err; | |
2483 | } | |
2484 | if (lse_mask->mpls_label) { | |
7fdd375e GN |
2485 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL, |
2486 | lse_key->mpls_label); | |
61aec25a GN |
2487 | if (err) |
2488 | return err; | |
2489 | } | |
2490 | ||
2491 | return 0; | |
2492 | } | |
2493 | ||
2494 | static int fl_dump_key_mpls_opts(struct sk_buff *skb, | |
2495 | struct flow_dissector_key_mpls *mpls_key, | |
2496 | struct flow_dissector_key_mpls *mpls_mask) | |
2497 | { | |
2498 | struct nlattr *opts; | |
2499 | struct nlattr *lse; | |
2500 | u8 lse_index; | |
2501 | int err; | |
2502 | ||
2503 | opts = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS); | |
2504 | if (!opts) | |
2505 | return -EMSGSIZE; | |
2506 | ||
2507 | for (lse_index = 0; lse_index < FLOW_DIS_MPLS_MAX; lse_index++) { | |
2508 | if (!(mpls_mask->used_lses & 1 << lse_index)) | |
2509 | continue; | |
2510 | ||
2511 | lse = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS_LSE); | |
2512 | if (!lse) { | |
2513 | err = -EMSGSIZE; | |
2514 | goto err_opts; | |
2515 | } | |
2516 | ||
2517 | err = fl_dump_key_mpls_opt_lse(skb, mpls_key, mpls_mask, | |
2518 | lse_index); | |
2519 | if (err) | |
2520 | goto err_opts_lse; | |
2521 | nla_nest_end(skb, lse); | |
2522 | } | |
2523 | nla_nest_end(skb, opts); | |
2524 | ||
2525 | return 0; | |
2526 | ||
2527 | err_opts_lse: | |
2528 | nla_nest_cancel(skb, lse); | |
2529 | err_opts: | |
2530 | nla_nest_cancel(skb, opts); | |
2531 | ||
2532 | return err; | |
2533 | } | |
2534 | ||
a577d8f7 BL |
2535 | static int fl_dump_key_mpls(struct sk_buff *skb, |
2536 | struct flow_dissector_key_mpls *mpls_key, | |
2537 | struct flow_dissector_key_mpls *mpls_mask) | |
2538 | { | |
58cff782 GN |
2539 | struct flow_dissector_mpls_lse *lse_mask; |
2540 | struct flow_dissector_mpls_lse *lse_key; | |
a577d8f7 BL |
2541 | int err; |
2542 | ||
61aec25a | 2543 | if (!mpls_mask->used_lses) |
a577d8f7 | 2544 | return 0; |
58cff782 GN |
2545 | |
2546 | lse_mask = &mpls_mask->ls[0]; | |
2547 | lse_key = &mpls_key->ls[0]; | |
2548 | ||
61aec25a GN |
2549 | /* For backward compatibility, don't use the MPLS nested attributes if |
2550 | * the rule can be expressed using the old attributes. | |
2551 | */ | |
2552 | if (mpls_mask->used_lses & ~1 || | |
2553 | (!lse_mask->mpls_ttl && !lse_mask->mpls_bos && | |
2554 | !lse_mask->mpls_tc && !lse_mask->mpls_label)) | |
2555 | return fl_dump_key_mpls_opts(skb, mpls_key, mpls_mask); | |
2556 | ||
58cff782 | 2557 | if (lse_mask->mpls_ttl) { |
a577d8f7 | 2558 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, |
58cff782 | 2559 | lse_key->mpls_ttl); |
a577d8f7 BL |
2560 | if (err) |
2561 | return err; | |
2562 | } | |
58cff782 | 2563 | if (lse_mask->mpls_tc) { |
a577d8f7 | 2564 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, |
58cff782 | 2565 | lse_key->mpls_tc); |
a577d8f7 BL |
2566 | if (err) |
2567 | return err; | |
2568 | } | |
58cff782 | 2569 | if (lse_mask->mpls_label) { |
a577d8f7 | 2570 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, |
58cff782 | 2571 | lse_key->mpls_label); |
a577d8f7 BL |
2572 | if (err) |
2573 | return err; | |
2574 | } | |
58cff782 | 2575 | if (lse_mask->mpls_bos) { |
a577d8f7 | 2576 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, |
58cff782 | 2577 | lse_key->mpls_bos); |
a577d8f7 BL |
2578 | if (err) |
2579 | return err; | |
2580 | } | |
2581 | return 0; | |
2582 | } | |
2583 | ||
0e2c17b6 | 2584 | static int fl_dump_key_ip(struct sk_buff *skb, bool encap, |
4d80cc0a OG |
2585 | struct flow_dissector_key_ip *key, |
2586 | struct flow_dissector_key_ip *mask) | |
2587 | { | |
0e2c17b6 OG |
2588 | int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS; |
2589 | int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL; | |
2590 | int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK; | |
2591 | int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK; | |
2592 | ||
2593 | if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) || | |
2594 | fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl))) | |
4d80cc0a OG |
2595 | return -1; |
2596 | ||
2597 | return 0; | |
2598 | } | |
2599 | ||
9399ae9a | 2600 | static int fl_dump_key_vlan(struct sk_buff *skb, |
d64efd09 | 2601 | int vlan_id_key, int vlan_prio_key, |
9399ae9a HHZ |
2602 | struct flow_dissector_key_vlan *vlan_key, |
2603 | struct flow_dissector_key_vlan *vlan_mask) | |
2604 | { | |
2605 | int err; | |
2606 | ||
2607 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
2608 | return 0; | |
2609 | if (vlan_mask->vlan_id) { | |
d64efd09 | 2610 | err = nla_put_u16(skb, vlan_id_key, |
9399ae9a HHZ |
2611 | vlan_key->vlan_id); |
2612 | if (err) | |
2613 | return err; | |
2614 | } | |
2615 | if (vlan_mask->vlan_priority) { | |
d64efd09 | 2616 | err = nla_put_u8(skb, vlan_prio_key, |
9399ae9a HHZ |
2617 | vlan_key->vlan_priority); |
2618 | if (err) | |
2619 | return err; | |
2620 | } | |
2621 | return 0; | |
2622 | } | |
2623 | ||
faa3ffce OG |
2624 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
2625 | u32 *flower_key, u32 *flower_mask, | |
2626 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
2627 | { | |
2628 | if (dissector_mask & dissector_flag_bit) { | |
2629 | *flower_mask |= flower_flag_bit; | |
2630 | if (dissector_key & dissector_flag_bit) | |
2631 | *flower_key |= flower_flag_bit; | |
2632 | } | |
2633 | } | |
2634 | ||
2635 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
2636 | { | |
2637 | u32 key, mask; | |
2638 | __be32 _key, _mask; | |
2639 | int err; | |
2640 | ||
2641 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
2642 | return 0; | |
2643 | ||
2644 | key = 0; | |
2645 | mask = 0; | |
2646 | ||
2647 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
2648 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
459d153d PJV |
2649 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, |
2650 | TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, | |
2651 | FLOW_DIS_FIRST_FRAG); | |
faa3ffce OG |
2652 | |
2653 | _key = cpu_to_be32(key); | |
2654 | _mask = cpu_to_be32(mask); | |
2655 | ||
2656 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
2657 | if (err) | |
2658 | return err; | |
2659 | ||
2660 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
2661 | } | |
2662 | ||
0a6e7778 PJV |
2663 | static int fl_dump_key_geneve_opt(struct sk_buff *skb, |
2664 | struct flow_dissector_key_enc_opts *enc_opts) | |
2665 | { | |
2666 | struct geneve_opt *opt; | |
2667 | struct nlattr *nest; | |
2668 | int opt_off = 0; | |
2669 | ||
ae0be8de | 2670 | nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE); |
0a6e7778 PJV |
2671 | if (!nest) |
2672 | goto nla_put_failure; | |
2673 | ||
2674 | while (enc_opts->len > opt_off) { | |
2675 | opt = (struct geneve_opt *)&enc_opts->data[opt_off]; | |
2676 | ||
2677 | if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS, | |
2678 | opt->opt_class)) | |
2679 | goto nla_put_failure; | |
2680 | if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE, | |
2681 | opt->type)) | |
2682 | goto nla_put_failure; | |
2683 | if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA, | |
2684 | opt->length * 4, opt->opt_data)) | |
2685 | goto nla_put_failure; | |
2686 | ||
2687 | opt_off += sizeof(struct geneve_opt) + opt->length * 4; | |
2688 | } | |
2689 | nla_nest_end(skb, nest); | |
2690 | return 0; | |
2691 | ||
2692 | nla_put_failure: | |
2693 | nla_nest_cancel(skb, nest); | |
2694 | return -EMSGSIZE; | |
2695 | } | |
2696 | ||
d8f9dfae XL |
2697 | static int fl_dump_key_vxlan_opt(struct sk_buff *skb, |
2698 | struct flow_dissector_key_enc_opts *enc_opts) | |
2699 | { | |
2700 | struct vxlan_metadata *md; | |
2701 | struct nlattr *nest; | |
2702 | ||
2703 | nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN); | |
2704 | if (!nest) | |
2705 | goto nla_put_failure; | |
2706 | ||
2707 | md = (struct vxlan_metadata *)&enc_opts->data[0]; | |
2708 | if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp)) | |
2709 | goto nla_put_failure; | |
2710 | ||
2711 | nla_nest_end(skb, nest); | |
2712 | return 0; | |
2713 | ||
2714 | nla_put_failure: | |
2715 | nla_nest_cancel(skb, nest); | |
2716 | return -EMSGSIZE; | |
2717 | } | |
2718 | ||
79b1011c XL |
2719 | static int fl_dump_key_erspan_opt(struct sk_buff *skb, |
2720 | struct flow_dissector_key_enc_opts *enc_opts) | |
2721 | { | |
2722 | struct erspan_metadata *md; | |
2723 | struct nlattr *nest; | |
2724 | ||
2725 | nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN); | |
2726 | if (!nest) | |
2727 | goto nla_put_failure; | |
2728 | ||
2729 | md = (struct erspan_metadata *)&enc_opts->data[0]; | |
2730 | if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version)) | |
2731 | goto nla_put_failure; | |
2732 | ||
2733 | if (md->version == 1 && | |
2734 | nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index)) | |
2735 | goto nla_put_failure; | |
2736 | ||
2737 | if (md->version == 2 && | |
2738 | (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR, | |
2739 | md->u.md2.dir) || | |
2740 | nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID, | |
2741 | get_hwid(&md->u.md2)))) | |
2742 | goto nla_put_failure; | |
2743 | ||
2744 | nla_nest_end(skb, nest); | |
2745 | return 0; | |
2746 | ||
2747 | nla_put_failure: | |
2748 | nla_nest_cancel(skb, nest); | |
2749 | return -EMSGSIZE; | |
2750 | } | |
2751 | ||
e0ace68a PB |
2752 | static int fl_dump_key_ct(struct sk_buff *skb, |
2753 | struct flow_dissector_key_ct *key, | |
2754 | struct flow_dissector_key_ct *mask) | |
2755 | { | |
2756 | if (IS_ENABLED(CONFIG_NF_CONNTRACK) && | |
2757 | fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE, | |
2758 | &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK, | |
2759 | sizeof(key->ct_state))) | |
2760 | goto nla_put_failure; | |
2761 | ||
2762 | if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) && | |
2763 | fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE, | |
2764 | &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK, | |
2765 | sizeof(key->ct_zone))) | |
2766 | goto nla_put_failure; | |
2767 | ||
2768 | if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) && | |
2769 | fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK, | |
2770 | &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK, | |
2771 | sizeof(key->ct_mark))) | |
2772 | goto nla_put_failure; | |
2773 | ||
2774 | if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) && | |
2775 | fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS, | |
2776 | &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK, | |
2777 | sizeof(key->ct_labels))) | |
2778 | goto nla_put_failure; | |
2779 | ||
2780 | return 0; | |
2781 | ||
2782 | nla_put_failure: | |
2783 | return -EMSGSIZE; | |
2784 | } | |
2785 | ||
0a6e7778 PJV |
2786 | static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type, |
2787 | struct flow_dissector_key_enc_opts *enc_opts) | |
2788 | { | |
2789 | struct nlattr *nest; | |
2790 | int err; | |
2791 | ||
2792 | if (!enc_opts->len) | |
2793 | return 0; | |
2794 | ||
ae0be8de | 2795 | nest = nla_nest_start_noflag(skb, enc_opt_type); |
0a6e7778 PJV |
2796 | if (!nest) |
2797 | goto nla_put_failure; | |
2798 | ||
2799 | switch (enc_opts->dst_opt_type) { | |
2800 | case TUNNEL_GENEVE_OPT: | |
2801 | err = fl_dump_key_geneve_opt(skb, enc_opts); | |
2802 | if (err) | |
2803 | goto nla_put_failure; | |
2804 | break; | |
d8f9dfae XL |
2805 | case TUNNEL_VXLAN_OPT: |
2806 | err = fl_dump_key_vxlan_opt(skb, enc_opts); | |
2807 | if (err) | |
2808 | goto nla_put_failure; | |
2809 | break; | |
79b1011c XL |
2810 | case TUNNEL_ERSPAN_OPT: |
2811 | err = fl_dump_key_erspan_opt(skb, enc_opts); | |
2812 | if (err) | |
2813 | goto nla_put_failure; | |
2814 | break; | |
0a6e7778 PJV |
2815 | default: |
2816 | goto nla_put_failure; | |
2817 | } | |
2818 | nla_nest_end(skb, nest); | |
2819 | return 0; | |
2820 | ||
2821 | nla_put_failure: | |
2822 | nla_nest_cancel(skb, nest); | |
2823 | return -EMSGSIZE; | |
2824 | } | |
2825 | ||
2826 | static int fl_dump_key_enc_opt(struct sk_buff *skb, | |
2827 | struct flow_dissector_key_enc_opts *key_opts, | |
2828 | struct flow_dissector_key_enc_opts *msk_opts) | |
2829 | { | |
2830 | int err; | |
2831 | ||
2832 | err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts); | |
2833 | if (err) | |
2834 | return err; | |
2835 | ||
2836 | return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts); | |
2837 | } | |
2838 | ||
f5749081 JP |
2839 | static int fl_dump_key(struct sk_buff *skb, struct net *net, |
2840 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
77b9900e | 2841 | { |
8212ed77 | 2842 | if (mask->meta.ingress_ifindex) { |
77b9900e JP |
2843 | struct net_device *dev; |
2844 | ||
8212ed77 | 2845 | dev = __dev_get_by_index(net, key->meta.ingress_ifindex); |
77b9900e JP |
2846 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) |
2847 | goto nla_put_failure; | |
2848 | } | |
2849 | ||
2850 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
2851 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
2852 | sizeof(key->eth.dst)) || | |
2853 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
2854 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
2855 | sizeof(key->eth.src)) || | |
2856 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
2857 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
2858 | sizeof(key->basic.n_proto))) | |
2859 | goto nla_put_failure; | |
9399ae9a | 2860 | |
a577d8f7 BL |
2861 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
2862 | goto nla_put_failure; | |
2863 | ||
d64efd09 JL |
2864 | if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID, |
2865 | TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan)) | |
9399ae9a HHZ |
2866 | goto nla_put_failure; |
2867 | ||
d64efd09 JL |
2868 | if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID, |
2869 | TCA_FLOWER_KEY_CVLAN_PRIO, | |
2870 | &key->cvlan, &mask->cvlan) || | |
2871 | (mask->cvlan.vlan_tpid && | |
158abbf1 JL |
2872 | nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE, |
2873 | key->cvlan.vlan_tpid))) | |
d3069512 JL |
2874 | goto nla_put_failure; |
2875 | ||
5e9a0fe4 JL |
2876 | if (mask->basic.n_proto) { |
2877 | if (mask->cvlan.vlan_tpid) { | |
2878 | if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE, | |
2879 | key->basic.n_proto)) | |
2880 | goto nla_put_failure; | |
2881 | } else if (mask->vlan.vlan_tpid) { | |
2882 | if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
2883 | key->basic.n_proto)) | |
2884 | goto nla_put_failure; | |
2885 | } | |
d64efd09 JL |
2886 | } |
2887 | ||
77b9900e JP |
2888 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
2889 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 2890 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 2891 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a | 2892 | sizeof(key->basic.ip_proto)) || |
0e2c17b6 | 2893 | fl_dump_key_ip(skb, false, &key->ip, &mask->ip))) |
77b9900e JP |
2894 | goto nla_put_failure; |
2895 | ||
c3f83241 | 2896 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
2897 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
2898 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
2899 | sizeof(key->ipv4.src)) || | |
2900 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
2901 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
2902 | sizeof(key->ipv4.dst)))) | |
2903 | goto nla_put_failure; | |
c3f83241 | 2904 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
2905 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
2906 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
2907 | sizeof(key->ipv6.src)) || | |
2908 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
2909 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
2910 | sizeof(key->ipv6.dst)))) | |
2911 | goto nla_put_failure; | |
2912 | ||
2913 | if (key->basic.ip_proto == IPPROTO_TCP && | |
2914 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 2915 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
2916 | sizeof(key->tp.src)) || |
2917 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 2918 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
2919 | sizeof(key->tp.dst)) || |
2920 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
2921 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
2922 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
2923 | goto nla_put_failure; |
2924 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
2925 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 2926 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
2927 | sizeof(key->tp.src)) || |
2928 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 2929 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
2930 | sizeof(key->tp.dst)))) |
2931 | goto nla_put_failure; | |
2932 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
2933 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
2934 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
2935 | sizeof(key->tp.src)) || | |
2936 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
2937 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
2938 | sizeof(key->tp.dst)))) |
2939 | goto nla_put_failure; | |
7b684884 SH |
2940 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
2941 | key->basic.ip_proto == IPPROTO_ICMP && | |
2942 | (fl_dump_key_val(skb, &key->icmp.type, | |
2943 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
2944 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
2945 | sizeof(key->icmp.type)) || | |
2946 | fl_dump_key_val(skb, &key->icmp.code, | |
2947 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
2948 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
2949 | sizeof(key->icmp.code)))) | |
2950 | goto nla_put_failure; | |
2951 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
2952 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
2953 | (fl_dump_key_val(skb, &key->icmp.type, | |
2954 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
2955 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
2956 | sizeof(key->icmp.type)) || | |
2957 | fl_dump_key_val(skb, &key->icmp.code, | |
2958 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
2959 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
2960 | sizeof(key->icmp.code)))) | |
2961 | goto nla_put_failure; | |
99d31326 SH |
2962 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
2963 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
2964 | (fl_dump_key_val(skb, &key->arp.sip, | |
2965 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
2966 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
2967 | sizeof(key->arp.sip)) || | |
2968 | fl_dump_key_val(skb, &key->arp.tip, | |
2969 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
2970 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
2971 | sizeof(key->arp.tip)) || | |
2972 | fl_dump_key_val(skb, &key->arp.op, | |
2973 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
2974 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
2975 | sizeof(key->arp.op)) || | |
2976 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
2977 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
2978 | sizeof(key->arp.sha)) || | |
2979 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
2980 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
2981 | sizeof(key->arp.tha)))) | |
2982 | goto nla_put_failure; | |
77b9900e | 2983 | |
5c72299f AN |
2984 | if ((key->basic.ip_proto == IPPROTO_TCP || |
2985 | key->basic.ip_proto == IPPROTO_UDP || | |
2986 | key->basic.ip_proto == IPPROTO_SCTP) && | |
2987 | fl_dump_key_port_range(skb, key, mask)) | |
2988 | goto nla_put_failure; | |
2989 | ||
bc3103f1 AV |
2990 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
2991 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
2992 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
2993 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
2994 | sizeof(key->enc_ipv4.src)) || | |
2995 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
2996 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
2997 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
2998 | sizeof(key->enc_ipv4.dst)))) | |
2999 | goto nla_put_failure; | |
3000 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
3001 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
3002 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
3003 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
3004 | sizeof(key->enc_ipv6.src)) || | |
3005 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
3006 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
3007 | &mask->enc_ipv6.dst, | |
3008 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
3009 | sizeof(key->enc_ipv6.dst)))) | |
3010 | goto nla_put_failure; | |
3011 | ||
3012 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 3013 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
3014 | sizeof(key->enc_key_id)) || |
3015 | fl_dump_key_val(skb, &key->enc_tp.src, | |
3016 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
3017 | &mask->enc_tp.src, | |
3018 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
3019 | sizeof(key->enc_tp.src)) || | |
3020 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
3021 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
3022 | &mask->enc_tp.dst, | |
3023 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
0e2c17b6 | 3024 | sizeof(key->enc_tp.dst)) || |
0a6e7778 PJV |
3025 | fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) || |
3026 | fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts)) | |
bc3103f1 AV |
3027 | goto nla_put_failure; |
3028 | ||
e0ace68a PB |
3029 | if (fl_dump_key_ct(skb, &key->ct, &mask->ct)) |
3030 | goto nla_put_failure; | |
3031 | ||
faa3ffce OG |
3032 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
3033 | goto nla_put_failure; | |
3034 | ||
5923b8f7 AL |
3035 | if (fl_dump_key_val(skb, &key->hash.hash, TCA_FLOWER_KEY_HASH, |
3036 | &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK, | |
3037 | sizeof(key->hash.hash))) | |
3038 | goto nla_put_failure; | |
3039 | ||
f5749081 JP |
3040 | return 0; |
3041 | ||
3042 | nla_put_failure: | |
3043 | return -EMSGSIZE; | |
3044 | } | |
3045 | ||
3046 | static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh, | |
12db03b6 | 3047 | struct sk_buff *skb, struct tcmsg *t, bool rtnl_held) |
f5749081 JP |
3048 | { |
3049 | struct cls_fl_filter *f = fh; | |
3050 | struct nlattr *nest; | |
3051 | struct fl_flow_key *key, *mask; | |
3d81e711 | 3052 | bool skip_hw; |
f5749081 JP |
3053 | |
3054 | if (!f) | |
3055 | return skb->len; | |
3056 | ||
3057 | t->tcm_handle = f->handle; | |
3058 | ||
ae0be8de | 3059 | nest = nla_nest_start_noflag(skb, TCA_OPTIONS); |
f5749081 JP |
3060 | if (!nest) |
3061 | goto nla_put_failure; | |
3062 | ||
3d81e711 VB |
3063 | spin_lock(&tp->lock); |
3064 | ||
f5749081 JP |
3065 | if (f->res.classid && |
3066 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
3d81e711 | 3067 | goto nla_put_failure_locked; |
f5749081 JP |
3068 | |
3069 | key = &f->key; | |
3070 | mask = &f->mask->key; | |
3d81e711 | 3071 | skip_hw = tc_skip_hw(f->flags); |
f5749081 JP |
3072 | |
3073 | if (fl_dump_key(skb, net, key, mask)) | |
3d81e711 | 3074 | goto nla_put_failure_locked; |
f5749081 | 3075 | |
749e6720 | 3076 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
3d81e711 VB |
3077 | goto nla_put_failure_locked; |
3078 | ||
3079 | spin_unlock(&tp->lock); | |
3080 | ||
3081 | if (!skip_hw) | |
c24e43d8 | 3082 | fl_hw_update_stats(tp, f, rtnl_held); |
e69985c6 | 3083 | |
86c55361 VB |
3084 | if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count)) |
3085 | goto nla_put_failure; | |
3086 | ||
77b9900e JP |
3087 | if (tcf_exts_dump(skb, &f->exts)) |
3088 | goto nla_put_failure; | |
3089 | ||
3090 | nla_nest_end(skb, nest); | |
3091 | ||
3092 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
3093 | goto nla_put_failure; | |
3094 | ||
3095 | return skb->len; | |
3096 | ||
3d81e711 VB |
3097 | nla_put_failure_locked: |
3098 | spin_unlock(&tp->lock); | |
77b9900e JP |
3099 | nla_put_failure: |
3100 | nla_nest_cancel(skb, nest); | |
3101 | return -1; | |
3102 | } | |
3103 | ||
0348451d VB |
3104 | static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh, |
3105 | struct sk_buff *skb, struct tcmsg *t, bool rtnl_held) | |
3106 | { | |
3107 | struct cls_fl_filter *f = fh; | |
3108 | struct nlattr *nest; | |
3109 | bool skip_hw; | |
3110 | ||
3111 | if (!f) | |
3112 | return skb->len; | |
3113 | ||
3114 | t->tcm_handle = f->handle; | |
3115 | ||
3116 | nest = nla_nest_start_noflag(skb, TCA_OPTIONS); | |
3117 | if (!nest) | |
3118 | goto nla_put_failure; | |
3119 | ||
3120 | spin_lock(&tp->lock); | |
3121 | ||
3122 | skip_hw = tc_skip_hw(f->flags); | |
3123 | ||
3124 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) | |
3125 | goto nla_put_failure_locked; | |
3126 | ||
3127 | spin_unlock(&tp->lock); | |
3128 | ||
3129 | if (!skip_hw) | |
3130 | fl_hw_update_stats(tp, f, rtnl_held); | |
3131 | ||
3132 | if (tcf_exts_terse_dump(skb, &f->exts)) | |
3133 | goto nla_put_failure; | |
3134 | ||
3135 | nla_nest_end(skb, nest); | |
3136 | ||
3137 | return skb->len; | |
3138 | ||
3139 | nla_put_failure_locked: | |
3140 | spin_unlock(&tp->lock); | |
3141 | nla_put_failure: | |
3142 | nla_nest_cancel(skb, nest); | |
3143 | return -1; | |
3144 | } | |
3145 | ||
b95ec7eb JP |
3146 | static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv) |
3147 | { | |
3148 | struct fl_flow_tmplt *tmplt = tmplt_priv; | |
3149 | struct fl_flow_key *key, *mask; | |
3150 | struct nlattr *nest; | |
3151 | ||
ae0be8de | 3152 | nest = nla_nest_start_noflag(skb, TCA_OPTIONS); |
b95ec7eb JP |
3153 | if (!nest) |
3154 | goto nla_put_failure; | |
3155 | ||
3156 | key = &tmplt->dummy_key; | |
3157 | mask = &tmplt->mask; | |
3158 | ||
3159 | if (fl_dump_key(skb, net, key, mask)) | |
3160 | goto nla_put_failure; | |
3161 | ||
3162 | nla_nest_end(skb, nest); | |
3163 | ||
3164 | return skb->len; | |
3165 | ||
3166 | nla_put_failure: | |
3167 | nla_nest_cancel(skb, nest); | |
3168 | return -EMSGSIZE; | |
3169 | } | |
3170 | ||
2e24cd75 CW |
3171 | static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q, |
3172 | unsigned long base) | |
07d79fc7 CW |
3173 | { |
3174 | struct cls_fl_filter *f = fh; | |
3175 | ||
2e24cd75 CW |
3176 | if (f && f->res.classid == classid) { |
3177 | if (cl) | |
3178 | __tcf_bind_filter(q, &f->res, base); | |
3179 | else | |
3180 | __tcf_unbind_filter(q, &f->res); | |
3181 | } | |
07d79fc7 CW |
3182 | } |
3183 | ||
a5b72a08 DC |
3184 | static bool fl_delete_empty(struct tcf_proto *tp) |
3185 | { | |
3186 | struct cls_fl_head *head = fl_head_dereference(tp); | |
3187 | ||
3188 | spin_lock(&tp->lock); | |
3189 | tp->deleting = idr_is_empty(&head->handle_idr); | |
3190 | spin_unlock(&tp->lock); | |
3191 | ||
3192 | return tp->deleting; | |
3193 | } | |
3194 | ||
77b9900e JP |
3195 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { |
3196 | .kind = "flower", | |
3197 | .classify = fl_classify, | |
3198 | .init = fl_init, | |
3199 | .destroy = fl_destroy, | |
3200 | .get = fl_get, | |
06177558 | 3201 | .put = fl_put, |
77b9900e JP |
3202 | .change = fl_change, |
3203 | .delete = fl_delete, | |
a5b72a08 | 3204 | .delete_empty = fl_delete_empty, |
77b9900e | 3205 | .walk = fl_walk, |
31533cba | 3206 | .reoffload = fl_reoffload, |
a449a3e7 VB |
3207 | .hw_add = fl_hw_add, |
3208 | .hw_del = fl_hw_del, | |
77b9900e | 3209 | .dump = fl_dump, |
0348451d | 3210 | .terse_dump = fl_terse_dump, |
07d79fc7 | 3211 | .bind_class = fl_bind_class, |
b95ec7eb JP |
3212 | .tmplt_create = fl_tmplt_create, |
3213 | .tmplt_destroy = fl_tmplt_destroy, | |
3214 | .tmplt_dump = fl_tmplt_dump, | |
77b9900e | 3215 | .owner = THIS_MODULE, |
92149190 | 3216 | .flags = TCF_PROTO_OPS_DOIT_UNLOCKED, |
77b9900e JP |
3217 | }; |
3218 | ||
3219 | static int __init cls_fl_init(void) | |
3220 | { | |
3221 | return register_tcf_proto_ops(&cls_fl_ops); | |
3222 | } | |
3223 | ||
3224 | static void __exit cls_fl_exit(void) | |
3225 | { | |
3226 | unregister_tcf_proto_ops(&cls_fl_ops); | |
3227 | } | |
3228 | ||
3229 | module_init(cls_fl_init); | |
3230 | module_exit(cls_fl_exit); | |
3231 | ||
3232 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
3233 | MODULE_DESCRIPTION("Flower classifier"); | |
3234 | MODULE_LICENSE("GPL v2"); |