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Commit | Line | Data |
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77b9900e JP |
1 | /* |
2 | * net/sched/cls_flower.c Flower classifier | |
3 | * | |
4 | * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/module.h> | |
15 | #include <linux/rhashtable.h> | |
d9363774 | 16 | #include <linux/workqueue.h> |
77b9900e JP |
17 | |
18 | #include <linux/if_ether.h> | |
19 | #include <linux/in6.h> | |
20 | #include <linux/ip.h> | |
a577d8f7 | 21 | #include <linux/mpls.h> |
77b9900e JP |
22 | |
23 | #include <net/sch_generic.h> | |
24 | #include <net/pkt_cls.h> | |
25 | #include <net/ip.h> | |
26 | #include <net/flow_dissector.h> | |
27 | ||
bc3103f1 AV |
28 | #include <net/dst.h> |
29 | #include <net/dst_metadata.h> | |
30 | ||
77b9900e JP |
31 | struct fl_flow_key { |
32 | int indev_ifindex; | |
42aecaa9 | 33 | struct flow_dissector_key_control control; |
bc3103f1 | 34 | struct flow_dissector_key_control enc_control; |
77b9900e JP |
35 | struct flow_dissector_key_basic basic; |
36 | struct flow_dissector_key_eth_addrs eth; | |
9399ae9a | 37 | struct flow_dissector_key_vlan vlan; |
d64efd09 | 38 | struct flow_dissector_key_vlan cvlan; |
77b9900e | 39 | union { |
c3f83241 | 40 | struct flow_dissector_key_ipv4_addrs ipv4; |
77b9900e JP |
41 | struct flow_dissector_key_ipv6_addrs ipv6; |
42 | }; | |
43 | struct flow_dissector_key_ports tp; | |
7b684884 | 44 | struct flow_dissector_key_icmp icmp; |
99d31326 | 45 | struct flow_dissector_key_arp arp; |
bc3103f1 AV |
46 | struct flow_dissector_key_keyid enc_key_id; |
47 | union { | |
48 | struct flow_dissector_key_ipv4_addrs enc_ipv4; | |
49 | struct flow_dissector_key_ipv6_addrs enc_ipv6; | |
50 | }; | |
f4d997fd | 51 | struct flow_dissector_key_ports enc_tp; |
a577d8f7 | 52 | struct flow_dissector_key_mpls mpls; |
fdfc7dd6 | 53 | struct flow_dissector_key_tcp tcp; |
4d80cc0a | 54 | struct flow_dissector_key_ip ip; |
77b9900e JP |
55 | } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */ |
56 | ||
57 | struct fl_flow_mask_range { | |
58 | unsigned short int start; | |
59 | unsigned short int end; | |
60 | }; | |
61 | ||
62 | struct fl_flow_mask { | |
63 | struct fl_flow_key key; | |
64 | struct fl_flow_mask_range range; | |
05cd271f PB |
65 | struct rhash_head ht_node; |
66 | struct rhashtable ht; | |
67 | struct rhashtable_params filter_ht_params; | |
68 | struct flow_dissector dissector; | |
69 | struct list_head filters; | |
44a5cd43 | 70 | struct rcu_work rwork; |
05cd271f | 71 | struct list_head list; |
77b9900e JP |
72 | }; |
73 | ||
74 | struct cls_fl_head { | |
75 | struct rhashtable ht; | |
05cd271f | 76 | struct list_head masks; |
aaa908ff | 77 | struct rcu_work rwork; |
c15ab236 | 78 | struct idr handle_idr; |
77b9900e JP |
79 | }; |
80 | ||
81 | struct cls_fl_filter { | |
05cd271f | 82 | struct fl_flow_mask *mask; |
77b9900e JP |
83 | struct rhash_head ht_node; |
84 | struct fl_flow_key mkey; | |
85 | struct tcf_exts exts; | |
86 | struct tcf_result res; | |
87 | struct fl_flow_key key; | |
88 | struct list_head list; | |
89 | u32 handle; | |
e69985c6 | 90 | u32 flags; |
31533cba | 91 | unsigned int in_hw_count; |
aaa908ff | 92 | struct rcu_work rwork; |
7091d8c7 | 93 | struct net_device *hw_dev; |
77b9900e JP |
94 | }; |
95 | ||
05cd271f PB |
96 | static const struct rhashtable_params mask_ht_params = { |
97 | .key_offset = offsetof(struct fl_flow_mask, key), | |
98 | .key_len = sizeof(struct fl_flow_key), | |
99 | .head_offset = offsetof(struct fl_flow_mask, ht_node), | |
100 | .automatic_shrinking = true, | |
101 | }; | |
102 | ||
77b9900e JP |
103 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) |
104 | { | |
105 | return mask->range.end - mask->range.start; | |
106 | } | |
107 | ||
108 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
109 | { | |
110 | const u8 *bytes = (const u8 *) &mask->key; | |
111 | size_t size = sizeof(mask->key); | |
05cd271f | 112 | size_t i, first = 0, last; |
77b9900e | 113 | |
05cd271f PB |
114 | for (i = 0; i < size; i++) { |
115 | if (bytes[i]) { | |
116 | first = i; | |
117 | break; | |
118 | } | |
119 | } | |
120 | last = first; | |
121 | for (i = size - 1; i != first; i--) { | |
77b9900e | 122 | if (bytes[i]) { |
77b9900e | 123 | last = i; |
05cd271f | 124 | break; |
77b9900e JP |
125 | } |
126 | } | |
127 | mask->range.start = rounddown(first, sizeof(long)); | |
128 | mask->range.end = roundup(last + 1, sizeof(long)); | |
129 | } | |
130 | ||
131 | static void *fl_key_get_start(struct fl_flow_key *key, | |
132 | const struct fl_flow_mask *mask) | |
133 | { | |
134 | return (u8 *) key + mask->range.start; | |
135 | } | |
136 | ||
137 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
138 | struct fl_flow_mask *mask) | |
139 | { | |
140 | const long *lkey = fl_key_get_start(key, mask); | |
141 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
142 | long *lmkey = fl_key_get_start(mkey, mask); | |
143 | int i; | |
144 | ||
145 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
146 | *lmkey++ = *lkey++ & *lmask++; | |
147 | } | |
148 | ||
149 | static void fl_clear_masked_range(struct fl_flow_key *key, | |
150 | struct fl_flow_mask *mask) | |
151 | { | |
152 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
153 | } | |
154 | ||
05cd271f | 155 | static struct cls_fl_filter *fl_lookup(struct fl_flow_mask *mask, |
a3308d8f PB |
156 | struct fl_flow_key *mkey) |
157 | { | |
05cd271f PB |
158 | return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask), |
159 | mask->filter_ht_params); | |
a3308d8f PB |
160 | } |
161 | ||
77b9900e JP |
162 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
163 | struct tcf_result *res) | |
164 | { | |
165 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
166 | struct cls_fl_filter *f; | |
05cd271f | 167 | struct fl_flow_mask *mask; |
77b9900e JP |
168 | struct fl_flow_key skb_key; |
169 | struct fl_flow_key skb_mkey; | |
170 | ||
05cd271f PB |
171 | list_for_each_entry_rcu(mask, &head->masks, list) { |
172 | fl_clear_masked_range(&skb_key, mask); | |
bc3103f1 | 173 | |
05cd271f PB |
174 | skb_key.indev_ifindex = skb->skb_iif; |
175 | /* skb_flow_dissect() does not set n_proto in case an unknown | |
176 | * protocol, so do it rather here. | |
177 | */ | |
178 | skb_key.basic.n_proto = skb->protocol; | |
179 | skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key); | |
180 | skb_flow_dissect(skb, &mask->dissector, &skb_key, 0); | |
77b9900e | 181 | |
05cd271f | 182 | fl_set_masked_key(&skb_mkey, &skb_key, mask); |
77b9900e | 183 | |
05cd271f PB |
184 | f = fl_lookup(mask, &skb_mkey); |
185 | if (f && !tc_skip_sw(f->flags)) { | |
186 | *res = f->res; | |
187 | return tcf_exts_exec(skb, &f->exts, res); | |
188 | } | |
77b9900e JP |
189 | } |
190 | return -1; | |
191 | } | |
192 | ||
193 | static int fl_init(struct tcf_proto *tp) | |
194 | { | |
195 | struct cls_fl_head *head; | |
196 | ||
197 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
198 | if (!head) | |
199 | return -ENOBUFS; | |
200 | ||
05cd271f | 201 | INIT_LIST_HEAD_RCU(&head->masks); |
77b9900e | 202 | rcu_assign_pointer(tp->root, head); |
c15ab236 | 203 | idr_init(&head->handle_idr); |
77b9900e | 204 | |
05cd271f PB |
205 | return rhashtable_init(&head->ht, &mask_ht_params); |
206 | } | |
207 | ||
44a5cd43 PA |
208 | static void fl_mask_free(struct fl_flow_mask *mask) |
209 | { | |
210 | rhashtable_destroy(&mask->ht); | |
211 | kfree(mask); | |
212 | } | |
213 | ||
214 | static void fl_mask_free_work(struct work_struct *work) | |
215 | { | |
216 | struct fl_flow_mask *mask = container_of(to_rcu_work(work), | |
217 | struct fl_flow_mask, rwork); | |
218 | ||
219 | fl_mask_free(mask); | |
220 | } | |
221 | ||
05cd271f PB |
222 | static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask, |
223 | bool async) | |
224 | { | |
225 | if (!list_empty(&mask->filters)) | |
226 | return false; | |
227 | ||
228 | rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params); | |
05cd271f PB |
229 | list_del_rcu(&mask->list); |
230 | if (async) | |
44a5cd43 | 231 | tcf_queue_work(&mask->rwork, fl_mask_free_work); |
05cd271f | 232 | else |
44a5cd43 | 233 | fl_mask_free(mask); |
05cd271f PB |
234 | |
235 | return true; | |
77b9900e JP |
236 | } |
237 | ||
0dadc117 CW |
238 | static void __fl_destroy_filter(struct cls_fl_filter *f) |
239 | { | |
240 | tcf_exts_destroy(&f->exts); | |
241 | tcf_exts_put_net(&f->exts); | |
242 | kfree(f); | |
243 | } | |
244 | ||
0552c8af | 245 | static void fl_destroy_filter_work(struct work_struct *work) |
77b9900e | 246 | { |
aaa908ff CW |
247 | struct cls_fl_filter *f = container_of(to_rcu_work(work), |
248 | struct cls_fl_filter, rwork); | |
77b9900e | 249 | |
0552c8af | 250 | rtnl_lock(); |
0dadc117 | 251 | __fl_destroy_filter(f); |
0552c8af CW |
252 | rtnl_unlock(); |
253 | } | |
254 | ||
1b0f8037 JK |
255 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f, |
256 | struct netlink_ext_ack *extack) | |
5b33f488 | 257 | { |
de4784ca | 258 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 259 | struct tcf_block *block = tp->chain->block; |
5b33f488 | 260 | |
1b0f8037 | 261 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack); |
de4784ca JP |
262 | cls_flower.command = TC_CLSFLOWER_DESTROY; |
263 | cls_flower.cookie = (unsigned long) f; | |
5b33f488 | 264 | |
208c0f4b | 265 | tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 | 266 | &cls_flower, false); |
caa72601 | 267 | tcf_block_offload_dec(block, &f->flags); |
5b33f488 AV |
268 | } |
269 | ||
e8eb36cd | 270 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
41002038 QM |
271 | struct cls_fl_filter *f, |
272 | struct netlink_ext_ack *extack) | |
5b33f488 | 273 | { |
de4784ca | 274 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 275 | struct tcf_block *block = tp->chain->block; |
717503b9 | 276 | bool skip_sw = tc_skip_sw(f->flags); |
e8eb36cd | 277 | int err; |
5b33f488 | 278 | |
ea205940 | 279 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack); |
de4784ca JP |
280 | cls_flower.command = TC_CLSFLOWER_REPLACE; |
281 | cls_flower.cookie = (unsigned long) f; | |
05cd271f PB |
282 | cls_flower.dissector = &f->mask->dissector; |
283 | cls_flower.mask = &f->mask->key; | |
de4784ca JP |
284 | cls_flower.key = &f->mkey; |
285 | cls_flower.exts = &f->exts; | |
384c181e | 286 | cls_flower.classid = f->res.classid; |
5b33f488 | 287 | |
208c0f4b | 288 | err = tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 JP |
289 | &cls_flower, skip_sw); |
290 | if (err < 0) { | |
1b0f8037 | 291 | fl_hw_destroy_filter(tp, f, NULL); |
e8eb36cd | 292 | return err; |
717503b9 | 293 | } else if (err > 0) { |
31533cba | 294 | f->in_hw_count = err; |
caa72601 | 295 | tcf_block_offload_inc(block, &f->flags); |
717503b9 JP |
296 | } |
297 | ||
298 | if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW)) | |
299 | return -EINVAL; | |
300 | ||
e8eb36cd | 301 | return 0; |
5b33f488 AV |
302 | } |
303 | ||
10cbc684 AV |
304 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
305 | { | |
de4784ca | 306 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 307 | struct tcf_block *block = tp->chain->block; |
10cbc684 | 308 | |
ea205940 | 309 | tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL); |
de4784ca JP |
310 | cls_flower.command = TC_CLSFLOWER_STATS; |
311 | cls_flower.cookie = (unsigned long) f; | |
312 | cls_flower.exts = &f->exts; | |
384c181e | 313 | cls_flower.classid = f->res.classid; |
10cbc684 | 314 | |
208c0f4b | 315 | tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 | 316 | &cls_flower, false); |
10cbc684 AV |
317 | } |
318 | ||
05cd271f | 319 | static bool __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f, |
1b0f8037 | 320 | struct netlink_ext_ack *extack) |
13fa876e | 321 | { |
c15ab236 | 322 | struct cls_fl_head *head = rtnl_dereference(tp->root); |
05cd271f PB |
323 | bool async = tcf_exts_get_net(&f->exts); |
324 | bool last; | |
c15ab236 | 325 | |
9c160941 | 326 | idr_remove(&head->handle_idr, f->handle); |
13fa876e | 327 | list_del_rcu(&f->list); |
05cd271f | 328 | last = fl_mask_put(head, f->mask, async); |
79685219 | 329 | if (!tc_skip_hw(f->flags)) |
1b0f8037 | 330 | fl_hw_destroy_filter(tp, f, extack); |
13fa876e | 331 | tcf_unbind_filter(tp, &f->res); |
05cd271f | 332 | if (async) |
aaa908ff | 333 | tcf_queue_work(&f->rwork, fl_destroy_filter_work); |
0dadc117 CW |
334 | else |
335 | __fl_destroy_filter(f); | |
05cd271f PB |
336 | |
337 | return last; | |
13fa876e RD |
338 | } |
339 | ||
d9363774 DB |
340 | static void fl_destroy_sleepable(struct work_struct *work) |
341 | { | |
aaa908ff CW |
342 | struct cls_fl_head *head = container_of(to_rcu_work(work), |
343 | struct cls_fl_head, | |
344 | rwork); | |
de9dc650 PB |
345 | |
346 | rhashtable_destroy(&head->ht); | |
d9363774 DB |
347 | kfree(head); |
348 | module_put(THIS_MODULE); | |
349 | } | |
350 | ||
715df5ec | 351 | static void fl_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack) |
77b9900e JP |
352 | { |
353 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
05cd271f | 354 | struct fl_flow_mask *mask, *next_mask; |
77b9900e JP |
355 | struct cls_fl_filter *f, *next; |
356 | ||
05cd271f PB |
357 | list_for_each_entry_safe(mask, next_mask, &head->masks, list) { |
358 | list_for_each_entry_safe(f, next, &mask->filters, list) { | |
359 | if (__fl_delete(tp, f, extack)) | |
360 | break; | |
361 | } | |
362 | } | |
c15ab236 | 363 | idr_destroy(&head->handle_idr); |
d9363774 DB |
364 | |
365 | __module_get(THIS_MODULE); | |
aaa908ff | 366 | tcf_queue_work(&head->rwork, fl_destroy_sleepable); |
77b9900e JP |
367 | } |
368 | ||
8113c095 | 369 | static void *fl_get(struct tcf_proto *tp, u32 handle) |
77b9900e JP |
370 | { |
371 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
77b9900e | 372 | |
322d884b | 373 | return idr_find(&head->handle_idr, handle); |
77b9900e JP |
374 | } |
375 | ||
376 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
377 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
378 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
379 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
380 | .len = IFNAMSIZ }, | |
381 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
382 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
383 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
384 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
385 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
386 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
387 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
388 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
389 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
390 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
391 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
392 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
393 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
394 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
395 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
396 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
397 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
398 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
399 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
400 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
401 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
402 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
403 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
404 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
405 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
406 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
407 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
408 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
409 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
410 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
411 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
412 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
413 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
414 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
415 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
416 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
417 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
418 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
419 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
420 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
421 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
422 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
423 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
424 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
425 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
426 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
427 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
428 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
429 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
430 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
431 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
432 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
433 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
434 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
435 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
436 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
437 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
438 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
439 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
440 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
441 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
442 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
443 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
444 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
445 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
446 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
fdfc7dd6 JP |
447 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
448 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
449 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
450 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
451 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
452 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
d64efd09 JL |
453 | [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 }, |
454 | [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 }, | |
455 | [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
77b9900e JP |
456 | }; |
457 | ||
458 | static void fl_set_key_val(struct nlattr **tb, | |
459 | void *val, int val_type, | |
460 | void *mask, int mask_type, int len) | |
461 | { | |
462 | if (!tb[val_type]) | |
463 | return; | |
464 | memcpy(val, nla_data(tb[val_type]), len); | |
465 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
466 | memset(mask, 0xff, len); | |
467 | else | |
468 | memcpy(mask, nla_data(tb[mask_type]), len); | |
469 | } | |
470 | ||
1a7fca63 BL |
471 | static int fl_set_key_mpls(struct nlattr **tb, |
472 | struct flow_dissector_key_mpls *key_val, | |
473 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
474 | { |
475 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
476 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
477 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
478 | } | |
479 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
480 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
481 | ||
482 | if (bos & ~MPLS_BOS_MASK) | |
483 | return -EINVAL; | |
484 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
485 | key_mask->mpls_bos = MPLS_BOS_MASK; |
486 | } | |
487 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
488 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
489 | ||
490 | if (tc & ~MPLS_TC_MASK) | |
491 | return -EINVAL; | |
492 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
493 | key_mask->mpls_tc = MPLS_TC_MASK; |
494 | } | |
495 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
496 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
497 | ||
498 | if (label & ~MPLS_LABEL_MASK) | |
499 | return -EINVAL; | |
500 | key_val->mpls_label = label; | |
a577d8f7 BL |
501 | key_mask->mpls_label = MPLS_LABEL_MASK; |
502 | } | |
1a7fca63 | 503 | return 0; |
a577d8f7 BL |
504 | } |
505 | ||
9399ae9a | 506 | static void fl_set_key_vlan(struct nlattr **tb, |
aaab0834 | 507 | __be16 ethertype, |
d64efd09 | 508 | int vlan_id_key, int vlan_prio_key, |
9399ae9a HHZ |
509 | struct flow_dissector_key_vlan *key_val, |
510 | struct flow_dissector_key_vlan *key_mask) | |
511 | { | |
512 | #define VLAN_PRIORITY_MASK 0x7 | |
513 | ||
d64efd09 | 514 | if (tb[vlan_id_key]) { |
9399ae9a | 515 | key_val->vlan_id = |
d64efd09 | 516 | nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK; |
9399ae9a HHZ |
517 | key_mask->vlan_id = VLAN_VID_MASK; |
518 | } | |
d64efd09 | 519 | if (tb[vlan_prio_key]) { |
9399ae9a | 520 | key_val->vlan_priority = |
d64efd09 | 521 | nla_get_u8(tb[vlan_prio_key]) & |
9399ae9a HHZ |
522 | VLAN_PRIORITY_MASK; |
523 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
524 | } | |
aaab0834 JL |
525 | key_val->vlan_tpid = ethertype; |
526 | key_mask->vlan_tpid = cpu_to_be16(~0); | |
9399ae9a HHZ |
527 | } |
528 | ||
faa3ffce OG |
529 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
530 | u32 *dissector_key, u32 *dissector_mask, | |
531 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
532 | { | |
533 | if (flower_mask & flower_flag_bit) { | |
534 | *dissector_mask |= dissector_flag_bit; | |
535 | if (flower_key & flower_flag_bit) | |
536 | *dissector_key |= dissector_flag_bit; | |
537 | } | |
538 | } | |
539 | ||
d9724772 OG |
540 | static int fl_set_key_flags(struct nlattr **tb, |
541 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
542 | { |
543 | u32 key, mask; | |
544 | ||
d9724772 OG |
545 | /* mask is mandatory for flags */ |
546 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
547 | return -EINVAL; | |
faa3ffce OG |
548 | |
549 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 550 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
551 | |
552 | *flags_key = 0; | |
553 | *flags_mask = 0; | |
554 | ||
555 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
556 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
459d153d PJV |
557 | fl_set_key_flag(key, mask, flags_key, flags_mask, |
558 | TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, | |
559 | FLOW_DIS_FIRST_FRAG); | |
d9724772 OG |
560 | |
561 | return 0; | |
faa3ffce OG |
562 | } |
563 | ||
4d80cc0a OG |
564 | static void fl_set_key_ip(struct nlattr **tb, |
565 | struct flow_dissector_key_ip *key, | |
566 | struct flow_dissector_key_ip *mask) | |
567 | { | |
568 | fl_set_key_val(tb, &key->tos, TCA_FLOWER_KEY_IP_TOS, | |
569 | &mask->tos, TCA_FLOWER_KEY_IP_TOS_MASK, | |
570 | sizeof(key->tos)); | |
571 | ||
572 | fl_set_key_val(tb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, | |
573 | &mask->ttl, TCA_FLOWER_KEY_IP_TTL_MASK, | |
574 | sizeof(key->ttl)); | |
575 | } | |
576 | ||
77b9900e | 577 | static int fl_set_key(struct net *net, struct nlattr **tb, |
1057c55f AA |
578 | struct fl_flow_key *key, struct fl_flow_key *mask, |
579 | struct netlink_ext_ack *extack) | |
77b9900e | 580 | { |
9399ae9a | 581 | __be16 ethertype; |
d9724772 | 582 | int ret = 0; |
dd3aa3b5 | 583 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 584 | if (tb[TCA_FLOWER_INDEV]) { |
1057c55f | 585 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack); |
77b9900e JP |
586 | if (err < 0) |
587 | return err; | |
588 | key->indev_ifindex = err; | |
589 | mask->indev_ifindex = 0xffffffff; | |
590 | } | |
dd3aa3b5 | 591 | #endif |
77b9900e JP |
592 | |
593 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
594 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
595 | sizeof(key->eth.dst)); | |
596 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
597 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
598 | sizeof(key->eth.src)); | |
66530bdf | 599 | |
0b498a52 | 600 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
601 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
602 | ||
aaab0834 | 603 | if (eth_type_vlan(ethertype)) { |
d64efd09 JL |
604 | fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID, |
605 | TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, | |
606 | &mask->vlan); | |
607 | ||
5e9a0fe4 JL |
608 | if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) { |
609 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]); | |
610 | if (eth_type_vlan(ethertype)) { | |
611 | fl_set_key_vlan(tb, ethertype, | |
612 | TCA_FLOWER_KEY_CVLAN_ID, | |
613 | TCA_FLOWER_KEY_CVLAN_PRIO, | |
614 | &key->cvlan, &mask->cvlan); | |
615 | fl_set_key_val(tb, &key->basic.n_proto, | |
616 | TCA_FLOWER_KEY_CVLAN_ETH_TYPE, | |
617 | &mask->basic.n_proto, | |
618 | TCA_FLOWER_UNSPEC, | |
619 | sizeof(key->basic.n_proto)); | |
620 | } else { | |
621 | key->basic.n_proto = ethertype; | |
622 | mask->basic.n_proto = cpu_to_be16(~0); | |
623 | } | |
d64efd09 | 624 | } |
0b498a52 AB |
625 | } else { |
626 | key->basic.n_proto = ethertype; | |
627 | mask->basic.n_proto = cpu_to_be16(~0); | |
628 | } | |
9399ae9a | 629 | } |
66530bdf | 630 | |
77b9900e JP |
631 | if (key->basic.n_proto == htons(ETH_P_IP) || |
632 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
633 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
634 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
635 | sizeof(key->basic.ip_proto)); | |
4d80cc0a | 636 | fl_set_key_ip(tb, &key->ip, &mask->ip); |
77b9900e | 637 | } |
66530bdf JHS |
638 | |
639 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
640 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 641 | mask->control.addr_type = ~0; |
77b9900e JP |
642 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
643 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
644 | sizeof(key->ipv4.src)); | |
645 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
646 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
647 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
648 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
649 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 650 | mask->control.addr_type = ~0; |
77b9900e JP |
651 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
652 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
653 | sizeof(key->ipv6.src)); | |
654 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
655 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
656 | sizeof(key->ipv6.dst)); | |
657 | } | |
66530bdf | 658 | |
77b9900e JP |
659 | if (key->basic.ip_proto == IPPROTO_TCP) { |
660 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 661 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
662 | sizeof(key->tp.src)); |
663 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 664 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 665 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
666 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
667 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
668 | sizeof(key->tcp.flags)); | |
77b9900e JP |
669 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
670 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 671 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
672 | sizeof(key->tp.src)); |
673 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 674 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 675 | sizeof(key->tp.dst)); |
5976c5f4 SH |
676 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
677 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
678 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
679 | sizeof(key->tp.src)); | |
680 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
681 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
682 | sizeof(key->tp.dst)); | |
7b684884 SH |
683 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
684 | key->basic.ip_proto == IPPROTO_ICMP) { | |
685 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
686 | &mask->icmp.type, | |
687 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
688 | sizeof(key->icmp.type)); | |
689 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
690 | &mask->icmp.code, | |
691 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
692 | sizeof(key->icmp.code)); | |
693 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
694 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
695 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
696 | &mask->icmp.type, | |
697 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
698 | sizeof(key->icmp.type)); | |
040587af | 699 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 700 | &mask->icmp.code, |
040587af | 701 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 702 | sizeof(key->icmp.code)); |
a577d8f7 BL |
703 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
704 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
705 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
706 | if (ret) | |
707 | return ret; | |
99d31326 SH |
708 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
709 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
710 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
711 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
712 | sizeof(key->arp.sip)); | |
713 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
714 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
715 | sizeof(key->arp.tip)); | |
716 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
717 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
718 | sizeof(key->arp.op)); | |
719 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
720 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
721 | sizeof(key->arp.sha)); | |
722 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
723 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
724 | sizeof(key->arp.tha)); | |
77b9900e JP |
725 | } |
726 | ||
bc3103f1 AV |
727 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
728 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
729 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 730 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
731 | fl_set_key_val(tb, &key->enc_ipv4.src, |
732 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
733 | &mask->enc_ipv4.src, | |
734 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
735 | sizeof(key->enc_ipv4.src)); | |
736 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
737 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
738 | &mask->enc_ipv4.dst, | |
739 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
740 | sizeof(key->enc_ipv4.dst)); | |
741 | } | |
742 | ||
743 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
744 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
745 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 746 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
747 | fl_set_key_val(tb, &key->enc_ipv6.src, |
748 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
749 | &mask->enc_ipv6.src, | |
750 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
751 | sizeof(key->enc_ipv6.src)); | |
752 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
753 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
754 | &mask->enc_ipv6.dst, | |
755 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
756 | sizeof(key->enc_ipv6.dst)); | |
757 | } | |
758 | ||
759 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 760 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
761 | sizeof(key->enc_key_id.keyid)); |
762 | ||
f4d997fd HHZ |
763 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
764 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
765 | sizeof(key->enc_tp.src)); | |
766 | ||
767 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
768 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
769 | sizeof(key->enc_tp.dst)); | |
770 | ||
d9724772 OG |
771 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
772 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 773 | |
d9724772 | 774 | return ret; |
77b9900e JP |
775 | } |
776 | ||
05cd271f PB |
777 | static void fl_mask_copy(struct fl_flow_mask *dst, |
778 | struct fl_flow_mask *src) | |
77b9900e | 779 | { |
05cd271f PB |
780 | const void *psrc = fl_key_get_start(&src->key, src); |
781 | void *pdst = fl_key_get_start(&dst->key, src); | |
77b9900e | 782 | |
05cd271f PB |
783 | memcpy(pdst, psrc, fl_mask_range(src)); |
784 | dst->range = src->range; | |
77b9900e JP |
785 | } |
786 | ||
787 | static const struct rhashtable_params fl_ht_params = { | |
788 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
789 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
790 | .automatic_shrinking = true, | |
791 | }; | |
792 | ||
05cd271f | 793 | static int fl_init_mask_hashtable(struct fl_flow_mask *mask) |
77b9900e | 794 | { |
05cd271f PB |
795 | mask->filter_ht_params = fl_ht_params; |
796 | mask->filter_ht_params.key_len = fl_mask_range(mask); | |
797 | mask->filter_ht_params.key_offset += mask->range.start; | |
77b9900e | 798 | |
05cd271f | 799 | return rhashtable_init(&mask->ht, &mask->filter_ht_params); |
77b9900e JP |
800 | } |
801 | ||
802 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
803 | #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member)) | |
77b9900e | 804 | |
339ba878 HHZ |
805 | #define FL_KEY_IS_MASKED(mask, member) \ |
806 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
807 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
808 | |
809 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
810 | do { \ | |
811 | keys[cnt].key_id = id; \ | |
812 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
813 | cnt++; \ | |
814 | } while(0); | |
815 | ||
339ba878 | 816 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 817 | do { \ |
339ba878 | 818 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
819 | FL_KEY_SET(keys, cnt, id, member); \ |
820 | } while(0); | |
821 | ||
05cd271f | 822 | static void fl_init_dissector(struct fl_flow_mask *mask) |
77b9900e JP |
823 | { |
824 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
825 | size_t cnt = 0; | |
826 | ||
42aecaa9 | 827 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 828 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
339ba878 HHZ |
829 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
830 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); | |
831 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
832 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); | |
833 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
834 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); | |
835 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
836 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
4d80cc0a OG |
837 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
838 | FLOW_DISSECTOR_KEY_IP, ip); | |
fdfc7dd6 JP |
839 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
840 | FLOW_DISSECTOR_KEY_TCP, tcp); | |
7b684884 SH |
841 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
842 | FLOW_DISSECTOR_KEY_ICMP, icmp); | |
99d31326 SH |
843 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
844 | FLOW_DISSECTOR_KEY_ARP, arp); | |
a577d8f7 BL |
845 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
846 | FLOW_DISSECTOR_KEY_MPLS, mpls); | |
9399ae9a HHZ |
847 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
848 | FLOW_DISSECTOR_KEY_VLAN, vlan); | |
d64efd09 JL |
849 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
850 | FLOW_DISSECTOR_KEY_CVLAN, cvlan); | |
519d1052 HHZ |
851 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
852 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); | |
853 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
854 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); | |
855 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
856 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); | |
857 | if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) || | |
858 | FL_KEY_IS_MASKED(&mask->key, enc_ipv6)) | |
859 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
860 | enc_control); | |
f4d997fd HHZ |
861 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
862 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); | |
77b9900e | 863 | |
05cd271f PB |
864 | skb_flow_dissector_init(&mask->dissector, keys, cnt); |
865 | } | |
866 | ||
867 | static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head, | |
868 | struct fl_flow_mask *mask) | |
869 | { | |
870 | struct fl_flow_mask *newmask; | |
871 | int err; | |
872 | ||
873 | newmask = kzalloc(sizeof(*newmask), GFP_KERNEL); | |
874 | if (!newmask) | |
875 | return ERR_PTR(-ENOMEM); | |
876 | ||
877 | fl_mask_copy(newmask, mask); | |
878 | ||
879 | err = fl_init_mask_hashtable(newmask); | |
880 | if (err) | |
881 | goto errout_free; | |
882 | ||
883 | fl_init_dissector(newmask); | |
884 | ||
885 | INIT_LIST_HEAD_RCU(&newmask->filters); | |
886 | ||
887 | err = rhashtable_insert_fast(&head->ht, &newmask->ht_node, | |
888 | mask_ht_params); | |
889 | if (err) | |
890 | goto errout_destroy; | |
891 | ||
892 | list_add_tail_rcu(&newmask->list, &head->masks); | |
893 | ||
894 | return newmask; | |
895 | ||
896 | errout_destroy: | |
897 | rhashtable_destroy(&newmask->ht); | |
898 | errout_free: | |
899 | kfree(newmask); | |
900 | ||
901 | return ERR_PTR(err); | |
77b9900e JP |
902 | } |
903 | ||
904 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
05cd271f PB |
905 | struct cls_fl_filter *fnew, |
906 | struct cls_fl_filter *fold, | |
77b9900e JP |
907 | struct fl_flow_mask *mask) |
908 | { | |
05cd271f | 909 | struct fl_flow_mask *newmask; |
77b9900e | 910 | |
05cd271f PB |
911 | fnew->mask = rhashtable_lookup_fast(&head->ht, mask, mask_ht_params); |
912 | if (!fnew->mask) { | |
913 | if (fold) | |
77b9900e | 914 | return -EINVAL; |
77b9900e | 915 | |
05cd271f PB |
916 | newmask = fl_create_new_mask(head, mask); |
917 | if (IS_ERR(newmask)) | |
918 | return PTR_ERR(newmask); | |
77b9900e | 919 | |
05cd271f | 920 | fnew->mask = newmask; |
f6521c58 | 921 | } else if (fold && fold->mask != fnew->mask) { |
05cd271f PB |
922 | return -EINVAL; |
923 | } | |
77b9900e JP |
924 | |
925 | return 0; | |
926 | } | |
927 | ||
928 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
929 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
930 | unsigned long base, struct nlattr **tb, | |
50a56190 AA |
931 | struct nlattr *est, bool ovr, |
932 | struct netlink_ext_ack *extack) | |
77b9900e | 933 | { |
77b9900e JP |
934 | int err; |
935 | ||
50a56190 | 936 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, extack); |
77b9900e JP |
937 | if (err < 0) |
938 | return err; | |
939 | ||
940 | if (tb[TCA_FLOWER_CLASSID]) { | |
941 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
942 | tcf_bind_filter(tp, &f->res, base); | |
943 | } | |
944 | ||
1057c55f | 945 | err = fl_set_key(net, tb, &f->key, &mask->key, extack); |
77b9900e | 946 | if (err) |
45507529 | 947 | return err; |
77b9900e JP |
948 | |
949 | fl_mask_update_range(mask); | |
950 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
951 | ||
77b9900e | 952 | return 0; |
77b9900e JP |
953 | } |
954 | ||
77b9900e JP |
955 | static int fl_change(struct net *net, struct sk_buff *in_skb, |
956 | struct tcf_proto *tp, unsigned long base, | |
957 | u32 handle, struct nlattr **tca, | |
7306db38 | 958 | void **arg, bool ovr, struct netlink_ext_ack *extack) |
77b9900e JP |
959 | { |
960 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 961 | struct cls_fl_filter *fold = *arg; |
77b9900e | 962 | struct cls_fl_filter *fnew; |
39b7b6a6 | 963 | struct nlattr **tb; |
77b9900e JP |
964 | struct fl_flow_mask mask = {}; |
965 | int err; | |
966 | ||
967 | if (!tca[TCA_OPTIONS]) | |
968 | return -EINVAL; | |
969 | ||
39b7b6a6 AB |
970 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
971 | if (!tb) | |
972 | return -ENOBUFS; | |
973 | ||
fceb6435 JB |
974 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
975 | fl_policy, NULL); | |
77b9900e | 976 | if (err < 0) |
39b7b6a6 | 977 | goto errout_tb; |
77b9900e | 978 | |
39b7b6a6 AB |
979 | if (fold && handle && fold->handle != handle) { |
980 | err = -EINVAL; | |
981 | goto errout_tb; | |
982 | } | |
77b9900e JP |
983 | |
984 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
985 | if (!fnew) { |
986 | err = -ENOBUFS; | |
987 | goto errout_tb; | |
988 | } | |
77b9900e | 989 | |
b9a24bb7 WC |
990 | err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0); |
991 | if (err < 0) | |
992 | goto errout; | |
77b9900e JP |
993 | |
994 | if (!handle) { | |
85bd0438 MW |
995 | handle = 1; |
996 | err = idr_alloc_u32(&head->handle_idr, fnew, &handle, | |
997 | INT_MAX, GFP_KERNEL); | |
998 | } else if (!fold) { | |
999 | /* user specifies a handle and it doesn't exist */ | |
1000 | err = idr_alloc_u32(&head->handle_idr, fnew, &handle, | |
1001 | handle, GFP_KERNEL); | |
77b9900e | 1002 | } |
85bd0438 MW |
1003 | if (err) |
1004 | goto errout; | |
1005 | fnew->handle = handle; | |
77b9900e | 1006 | |
e69985c6 AV |
1007 | if (tb[TCA_FLOWER_FLAGS]) { |
1008 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
1009 | ||
1010 | if (!tc_flags_valid(fnew->flags)) { | |
1011 | err = -EINVAL; | |
fe2502e4 | 1012 | goto errout_idr; |
e69985c6 AV |
1013 | } |
1014 | } | |
5b33f488 | 1015 | |
50a56190 AA |
1016 | err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr, |
1017 | extack); | |
77b9900e | 1018 | if (err) |
fe2502e4 | 1019 | goto errout_idr; |
77b9900e | 1020 | |
05cd271f | 1021 | err = fl_check_assign_mask(head, fnew, fold, &mask); |
77b9900e | 1022 | if (err) |
fe2502e4 | 1023 | goto errout_idr; |
77b9900e | 1024 | |
e8eb36cd | 1025 | if (!tc_skip_sw(fnew->flags)) { |
05cd271f | 1026 | if (!fold && fl_lookup(fnew->mask, &fnew->mkey)) { |
a3308d8f | 1027 | err = -EEXIST; |
05cd271f | 1028 | goto errout_mask; |
a3308d8f PB |
1029 | } |
1030 | ||
05cd271f PB |
1031 | err = rhashtable_insert_fast(&fnew->mask->ht, &fnew->ht_node, |
1032 | fnew->mask->filter_ht_params); | |
e69985c6 | 1033 | if (err) |
05cd271f | 1034 | goto errout_mask; |
e69985c6 | 1035 | } |
5b33f488 | 1036 | |
79685219 | 1037 | if (!tc_skip_hw(fnew->flags)) { |
05cd271f | 1038 | err = fl_hw_replace_filter(tp, fnew, extack); |
79685219 | 1039 | if (err) |
05cd271f | 1040 | goto errout_mask; |
79685219 | 1041 | } |
5b33f488 | 1042 | |
55593960 OG |
1043 | if (!tc_in_hw(fnew->flags)) |
1044 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
1045 | ||
5b33f488 | 1046 | if (fold) { |
725cbb62 | 1047 | if (!tc_skip_sw(fold->flags)) |
05cd271f PB |
1048 | rhashtable_remove_fast(&fold->mask->ht, |
1049 | &fold->ht_node, | |
1050 | fold->mask->filter_ht_params); | |
79685219 | 1051 | if (!tc_skip_hw(fold->flags)) |
1b0f8037 | 1052 | fl_hw_destroy_filter(tp, fold, NULL); |
5b33f488 | 1053 | } |
77b9900e | 1054 | |
8113c095 | 1055 | *arg = fnew; |
77b9900e JP |
1056 | |
1057 | if (fold) { | |
234a4624 | 1058 | idr_replace(&head->handle_idr, fnew, fnew->handle); |
ff3532f2 | 1059 | list_replace_rcu(&fold->list, &fnew->list); |
77b9900e | 1060 | tcf_unbind_filter(tp, &fold->res); |
0dadc117 | 1061 | tcf_exts_get_net(&fold->exts); |
aaa908ff | 1062 | tcf_queue_work(&fold->rwork, fl_destroy_filter_work); |
77b9900e | 1063 | } else { |
05cd271f | 1064 | list_add_tail_rcu(&fnew->list, &fnew->mask->filters); |
77b9900e JP |
1065 | } |
1066 | ||
39b7b6a6 | 1067 | kfree(tb); |
77b9900e JP |
1068 | return 0; |
1069 | ||
05cd271f PB |
1070 | errout_mask: |
1071 | fl_mask_put(head, fnew->mask, false); | |
1072 | ||
fe2502e4 | 1073 | errout_idr: |
8258d2da | 1074 | if (!fold) |
9c160941 | 1075 | idr_remove(&head->handle_idr, fnew->handle); |
77b9900e | 1076 | errout: |
b9a24bb7 | 1077 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 1078 | kfree(fnew); |
39b7b6a6 AB |
1079 | errout_tb: |
1080 | kfree(tb); | |
77b9900e JP |
1081 | return err; |
1082 | } | |
1083 | ||
571acf21 AA |
1084 | static int fl_delete(struct tcf_proto *tp, void *arg, bool *last, |
1085 | struct netlink_ext_ack *extack) | |
77b9900e JP |
1086 | { |
1087 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 1088 | struct cls_fl_filter *f = arg; |
77b9900e | 1089 | |
725cbb62 | 1090 | if (!tc_skip_sw(f->flags)) |
05cd271f PB |
1091 | rhashtable_remove_fast(&f->mask->ht, &f->ht_node, |
1092 | f->mask->filter_ht_params); | |
1b0f8037 | 1093 | __fl_delete(tp, f, extack); |
05cd271f | 1094 | *last = list_empty(&head->masks); |
77b9900e JP |
1095 | return 0; |
1096 | } | |
1097 | ||
1098 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg) | |
1099 | { | |
1100 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1101 | struct cls_fl_filter *f; | |
05cd271f | 1102 | |
01683a14 VB |
1103 | arg->count = arg->skip; |
1104 | ||
1105 | while ((f = idr_get_next_ul(&head->handle_idr, | |
1106 | &arg->cookie)) != NULL) { | |
1107 | if (arg->fn(tp, f, arg) < 0) { | |
1108 | arg->stop = 1; | |
1109 | break; | |
05cd271f | 1110 | } |
01683a14 VB |
1111 | arg->cookie = f->handle + 1; |
1112 | arg->count++; | |
77b9900e JP |
1113 | } |
1114 | } | |
1115 | ||
31533cba JH |
1116 | static int fl_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb, |
1117 | void *cb_priv, struct netlink_ext_ack *extack) | |
1118 | { | |
1119 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1120 | struct tc_cls_flower_offload cls_flower = {}; | |
1121 | struct tcf_block *block = tp->chain->block; | |
1122 | struct fl_flow_mask *mask; | |
1123 | struct cls_fl_filter *f; | |
1124 | int err; | |
1125 | ||
1126 | list_for_each_entry(mask, &head->masks, list) { | |
1127 | list_for_each_entry(f, &mask->filters, list) { | |
1128 | if (tc_skip_hw(f->flags)) | |
1129 | continue; | |
1130 | ||
1131 | tc_cls_common_offload_init(&cls_flower.common, tp, | |
1132 | f->flags, extack); | |
1133 | cls_flower.command = add ? | |
1134 | TC_CLSFLOWER_REPLACE : TC_CLSFLOWER_DESTROY; | |
1135 | cls_flower.cookie = (unsigned long)f; | |
1136 | cls_flower.dissector = &mask->dissector; | |
1137 | cls_flower.mask = &f->mkey; | |
1138 | cls_flower.key = &f->key; | |
1139 | cls_flower.exts = &f->exts; | |
1140 | cls_flower.classid = f->res.classid; | |
1141 | ||
1142 | err = cb(TC_SETUP_CLSFLOWER, &cls_flower, cb_priv); | |
1143 | if (err) { | |
1144 | if (add && tc_skip_sw(f->flags)) | |
1145 | return err; | |
1146 | continue; | |
1147 | } | |
1148 | ||
1149 | tc_cls_offload_cnt_update(block, &f->in_hw_count, | |
1150 | &f->flags, add); | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | return 0; | |
1155 | } | |
1156 | ||
77b9900e JP |
1157 | static int fl_dump_key_val(struct sk_buff *skb, |
1158 | void *val, int val_type, | |
1159 | void *mask, int mask_type, int len) | |
1160 | { | |
1161 | int err; | |
1162 | ||
1163 | if (!memchr_inv(mask, 0, len)) | |
1164 | return 0; | |
1165 | err = nla_put(skb, val_type, len, val); | |
1166 | if (err) | |
1167 | return err; | |
1168 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1169 | err = nla_put(skb, mask_type, len, mask); | |
1170 | if (err) | |
1171 | return err; | |
1172 | } | |
1173 | return 0; | |
1174 | } | |
1175 | ||
a577d8f7 BL |
1176 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1177 | struct flow_dissector_key_mpls *mpls_key, | |
1178 | struct flow_dissector_key_mpls *mpls_mask) | |
1179 | { | |
1180 | int err; | |
1181 | ||
1182 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1183 | return 0; | |
1184 | if (mpls_mask->mpls_ttl) { | |
1185 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1186 | mpls_key->mpls_ttl); | |
1187 | if (err) | |
1188 | return err; | |
1189 | } | |
1190 | if (mpls_mask->mpls_tc) { | |
1191 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1192 | mpls_key->mpls_tc); | |
1193 | if (err) | |
1194 | return err; | |
1195 | } | |
1196 | if (mpls_mask->mpls_label) { | |
1197 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1198 | mpls_key->mpls_label); | |
1199 | if (err) | |
1200 | return err; | |
1201 | } | |
1202 | if (mpls_mask->mpls_bos) { | |
1203 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1204 | mpls_key->mpls_bos); | |
1205 | if (err) | |
1206 | return err; | |
1207 | } | |
1208 | return 0; | |
1209 | } | |
1210 | ||
4d80cc0a OG |
1211 | static int fl_dump_key_ip(struct sk_buff *skb, |
1212 | struct flow_dissector_key_ip *key, | |
1213 | struct flow_dissector_key_ip *mask) | |
1214 | { | |
1215 | if (fl_dump_key_val(skb, &key->tos, TCA_FLOWER_KEY_IP_TOS, &mask->tos, | |
1216 | TCA_FLOWER_KEY_IP_TOS_MASK, sizeof(key->tos)) || | |
1217 | fl_dump_key_val(skb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, &mask->ttl, | |
1218 | TCA_FLOWER_KEY_IP_TTL_MASK, sizeof(key->ttl))) | |
1219 | return -1; | |
1220 | ||
1221 | return 0; | |
1222 | } | |
1223 | ||
9399ae9a | 1224 | static int fl_dump_key_vlan(struct sk_buff *skb, |
d64efd09 | 1225 | int vlan_id_key, int vlan_prio_key, |
9399ae9a HHZ |
1226 | struct flow_dissector_key_vlan *vlan_key, |
1227 | struct flow_dissector_key_vlan *vlan_mask) | |
1228 | { | |
1229 | int err; | |
1230 | ||
1231 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1232 | return 0; | |
1233 | if (vlan_mask->vlan_id) { | |
d64efd09 | 1234 | err = nla_put_u16(skb, vlan_id_key, |
9399ae9a HHZ |
1235 | vlan_key->vlan_id); |
1236 | if (err) | |
1237 | return err; | |
1238 | } | |
1239 | if (vlan_mask->vlan_priority) { | |
d64efd09 | 1240 | err = nla_put_u8(skb, vlan_prio_key, |
9399ae9a HHZ |
1241 | vlan_key->vlan_priority); |
1242 | if (err) | |
1243 | return err; | |
1244 | } | |
1245 | return 0; | |
1246 | } | |
1247 | ||
faa3ffce OG |
1248 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1249 | u32 *flower_key, u32 *flower_mask, | |
1250 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1251 | { | |
1252 | if (dissector_mask & dissector_flag_bit) { | |
1253 | *flower_mask |= flower_flag_bit; | |
1254 | if (dissector_key & dissector_flag_bit) | |
1255 | *flower_key |= flower_flag_bit; | |
1256 | } | |
1257 | } | |
1258 | ||
1259 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1260 | { | |
1261 | u32 key, mask; | |
1262 | __be32 _key, _mask; | |
1263 | int err; | |
1264 | ||
1265 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1266 | return 0; | |
1267 | ||
1268 | key = 0; | |
1269 | mask = 0; | |
1270 | ||
1271 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1272 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
459d153d PJV |
1273 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, |
1274 | TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, | |
1275 | FLOW_DIS_FIRST_FRAG); | |
faa3ffce OG |
1276 | |
1277 | _key = cpu_to_be32(key); | |
1278 | _mask = cpu_to_be32(mask); | |
1279 | ||
1280 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1281 | if (err) | |
1282 | return err; | |
1283 | ||
1284 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1285 | } | |
1286 | ||
8113c095 | 1287 | static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh, |
77b9900e JP |
1288 | struct sk_buff *skb, struct tcmsg *t) |
1289 | { | |
8113c095 | 1290 | struct cls_fl_filter *f = fh; |
77b9900e JP |
1291 | struct nlattr *nest; |
1292 | struct fl_flow_key *key, *mask; | |
1293 | ||
1294 | if (!f) | |
1295 | return skb->len; | |
1296 | ||
1297 | t->tcm_handle = f->handle; | |
1298 | ||
1299 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
1300 | if (!nest) | |
1301 | goto nla_put_failure; | |
1302 | ||
1303 | if (f->res.classid && | |
1304 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
1305 | goto nla_put_failure; | |
1306 | ||
1307 | key = &f->key; | |
05cd271f | 1308 | mask = &f->mask->key; |
77b9900e JP |
1309 | |
1310 | if (mask->indev_ifindex) { | |
1311 | struct net_device *dev; | |
1312 | ||
1313 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1314 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1315 | goto nla_put_failure; | |
1316 | } | |
1317 | ||
79685219 HHZ |
1318 | if (!tc_skip_hw(f->flags)) |
1319 | fl_hw_update_stats(tp, f); | |
10cbc684 | 1320 | |
77b9900e JP |
1321 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, |
1322 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1323 | sizeof(key->eth.dst)) || | |
1324 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1325 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1326 | sizeof(key->eth.src)) || | |
1327 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1328 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1329 | sizeof(key->basic.n_proto))) | |
1330 | goto nla_put_failure; | |
9399ae9a | 1331 | |
a577d8f7 BL |
1332 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1333 | goto nla_put_failure; | |
1334 | ||
d64efd09 JL |
1335 | if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID, |
1336 | TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan)) | |
9399ae9a HHZ |
1337 | goto nla_put_failure; |
1338 | ||
d64efd09 JL |
1339 | if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID, |
1340 | TCA_FLOWER_KEY_CVLAN_PRIO, | |
1341 | &key->cvlan, &mask->cvlan) || | |
1342 | (mask->cvlan.vlan_tpid && | |
1343 | nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
1344 | key->cvlan.vlan_tpid))) | |
d3069512 JL |
1345 | goto nla_put_failure; |
1346 | ||
5e9a0fe4 JL |
1347 | if (mask->basic.n_proto) { |
1348 | if (mask->cvlan.vlan_tpid) { | |
1349 | if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE, | |
1350 | key->basic.n_proto)) | |
1351 | goto nla_put_failure; | |
1352 | } else if (mask->vlan.vlan_tpid) { | |
1353 | if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
1354 | key->basic.n_proto)) | |
1355 | goto nla_put_failure; | |
1356 | } | |
d64efd09 JL |
1357 | } |
1358 | ||
77b9900e JP |
1359 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
1360 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 1361 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 1362 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a OG |
1363 | sizeof(key->basic.ip_proto)) || |
1364 | fl_dump_key_ip(skb, &key->ip, &mask->ip))) | |
77b9900e JP |
1365 | goto nla_put_failure; |
1366 | ||
c3f83241 | 1367 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
1368 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1369 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1370 | sizeof(key->ipv4.src)) || | |
1371 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1372 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1373 | sizeof(key->ipv4.dst)))) | |
1374 | goto nla_put_failure; | |
c3f83241 | 1375 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
1376 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1377 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1378 | sizeof(key->ipv6.src)) || | |
1379 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1380 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1381 | sizeof(key->ipv6.dst)))) | |
1382 | goto nla_put_failure; | |
1383 | ||
1384 | if (key->basic.ip_proto == IPPROTO_TCP && | |
1385 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1386 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1387 | sizeof(key->tp.src)) || |
1388 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1389 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
1390 | sizeof(key->tp.dst)) || |
1391 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
1392 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1393 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
1394 | goto nla_put_failure; |
1395 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
1396 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1397 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1398 | sizeof(key->tp.src)) || |
1399 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1400 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
1401 | sizeof(key->tp.dst)))) |
1402 | goto nla_put_failure; | |
1403 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
1404 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1405 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1406 | sizeof(key->tp.src)) || | |
1407 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1408 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
1409 | sizeof(key->tp.dst)))) |
1410 | goto nla_put_failure; | |
7b684884 SH |
1411 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
1412 | key->basic.ip_proto == IPPROTO_ICMP && | |
1413 | (fl_dump_key_val(skb, &key->icmp.type, | |
1414 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
1415 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1416 | sizeof(key->icmp.type)) || | |
1417 | fl_dump_key_val(skb, &key->icmp.code, | |
1418 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
1419 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1420 | sizeof(key->icmp.code)))) | |
1421 | goto nla_put_failure; | |
1422 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1423 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
1424 | (fl_dump_key_val(skb, &key->icmp.type, | |
1425 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
1426 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1427 | sizeof(key->icmp.type)) || | |
1428 | fl_dump_key_val(skb, &key->icmp.code, | |
1429 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
1430 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
1431 | sizeof(key->icmp.code)))) | |
1432 | goto nla_put_failure; | |
99d31326 SH |
1433 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
1434 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
1435 | (fl_dump_key_val(skb, &key->arp.sip, | |
1436 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
1437 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1438 | sizeof(key->arp.sip)) || | |
1439 | fl_dump_key_val(skb, &key->arp.tip, | |
1440 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
1441 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1442 | sizeof(key->arp.tip)) || | |
1443 | fl_dump_key_val(skb, &key->arp.op, | |
1444 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
1445 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
1446 | sizeof(key->arp.op)) || | |
1447 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1448 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1449 | sizeof(key->arp.sha)) || | |
1450 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1451 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1452 | sizeof(key->arp.tha)))) | |
1453 | goto nla_put_failure; | |
77b9900e | 1454 | |
bc3103f1 AV |
1455 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
1456 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
1457 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
1458 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1459 | sizeof(key->enc_ipv4.src)) || | |
1460 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
1461 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
1462 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1463 | sizeof(key->enc_ipv4.dst)))) | |
1464 | goto nla_put_failure; | |
1465 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
1466 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
1467 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
1468 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1469 | sizeof(key->enc_ipv6.src)) || | |
1470 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
1471 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1472 | &mask->enc_ipv6.dst, | |
1473 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1474 | sizeof(key->enc_ipv6.dst)))) | |
1475 | goto nla_put_failure; | |
1476 | ||
1477 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1478 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
1479 | sizeof(key->enc_key_id)) || |
1480 | fl_dump_key_val(skb, &key->enc_tp.src, | |
1481 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
1482 | &mask->enc_tp.src, | |
1483 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1484 | sizeof(key->enc_tp.src)) || | |
1485 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
1486 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1487 | &mask->enc_tp.dst, | |
1488 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1489 | sizeof(key->enc_tp.dst))) | |
bc3103f1 AV |
1490 | goto nla_put_failure; |
1491 | ||
faa3ffce OG |
1492 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
1493 | goto nla_put_failure; | |
1494 | ||
749e6720 OG |
1495 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
1496 | goto nla_put_failure; | |
e69985c6 | 1497 | |
77b9900e JP |
1498 | if (tcf_exts_dump(skb, &f->exts)) |
1499 | goto nla_put_failure; | |
1500 | ||
1501 | nla_nest_end(skb, nest); | |
1502 | ||
1503 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
1504 | goto nla_put_failure; | |
1505 | ||
1506 | return skb->len; | |
1507 | ||
1508 | nla_put_failure: | |
1509 | nla_nest_cancel(skb, nest); | |
1510 | return -1; | |
1511 | } | |
1512 | ||
07d79fc7 CW |
1513 | static void fl_bind_class(void *fh, u32 classid, unsigned long cl) |
1514 | { | |
1515 | struct cls_fl_filter *f = fh; | |
1516 | ||
1517 | if (f && f->res.classid == classid) | |
1518 | f->res.class = cl; | |
1519 | } | |
1520 | ||
77b9900e JP |
1521 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { |
1522 | .kind = "flower", | |
1523 | .classify = fl_classify, | |
1524 | .init = fl_init, | |
1525 | .destroy = fl_destroy, | |
1526 | .get = fl_get, | |
1527 | .change = fl_change, | |
1528 | .delete = fl_delete, | |
1529 | .walk = fl_walk, | |
31533cba | 1530 | .reoffload = fl_reoffload, |
77b9900e | 1531 | .dump = fl_dump, |
07d79fc7 | 1532 | .bind_class = fl_bind_class, |
77b9900e JP |
1533 | .owner = THIS_MODULE, |
1534 | }; | |
1535 | ||
1536 | static int __init cls_fl_init(void) | |
1537 | { | |
1538 | return register_tcf_proto_ops(&cls_fl_ops); | |
1539 | } | |
1540 | ||
1541 | static void __exit cls_fl_exit(void) | |
1542 | { | |
1543 | unregister_tcf_proto_ops(&cls_fl_ops); | |
1544 | } | |
1545 | ||
1546 | module_init(cls_fl_init); | |
1547 | module_exit(cls_fl_exit); | |
1548 | ||
1549 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
1550 | MODULE_DESCRIPTION("Flower classifier"); | |
1551 | MODULE_LICENSE("GPL v2"); |