]>
Commit | Line | Data |
---|---|---|
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; |
77b9900e | 38 | union { |
c3f83241 | 39 | struct flow_dissector_key_ipv4_addrs ipv4; |
77b9900e JP |
40 | struct flow_dissector_key_ipv6_addrs ipv6; |
41 | }; | |
42 | struct flow_dissector_key_ports tp; | |
7b684884 | 43 | struct flow_dissector_key_icmp icmp; |
99d31326 | 44 | struct flow_dissector_key_arp arp; |
bc3103f1 AV |
45 | struct flow_dissector_key_keyid enc_key_id; |
46 | union { | |
47 | struct flow_dissector_key_ipv4_addrs enc_ipv4; | |
48 | struct flow_dissector_key_ipv6_addrs enc_ipv6; | |
49 | }; | |
f4d997fd | 50 | struct flow_dissector_key_ports enc_tp; |
a577d8f7 | 51 | struct flow_dissector_key_mpls mpls; |
fdfc7dd6 | 52 | struct flow_dissector_key_tcp tcp; |
4d80cc0a | 53 | struct flow_dissector_key_ip ip; |
77b9900e JP |
54 | } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */ |
55 | ||
56 | struct fl_flow_mask_range { | |
57 | unsigned short int start; | |
58 | unsigned short int end; | |
59 | }; | |
60 | ||
61 | struct fl_flow_mask { | |
62 | struct fl_flow_key key; | |
63 | struct fl_flow_mask_range range; | |
64 | struct rcu_head rcu; | |
65 | }; | |
66 | ||
67 | struct cls_fl_head { | |
68 | struct rhashtable ht; | |
69 | struct fl_flow_mask mask; | |
70 | struct flow_dissector dissector; | |
77b9900e JP |
71 | bool mask_assigned; |
72 | struct list_head filters; | |
73 | struct rhashtable_params ht_params; | |
d9363774 DB |
74 | union { |
75 | struct work_struct work; | |
76 | struct rcu_head rcu; | |
77 | }; | |
c15ab236 | 78 | struct idr handle_idr; |
77b9900e JP |
79 | }; |
80 | ||
81 | struct cls_fl_filter { | |
82 | struct rhash_head ht_node; | |
83 | struct fl_flow_key mkey; | |
84 | struct tcf_exts exts; | |
85 | struct tcf_result res; | |
86 | struct fl_flow_key key; | |
87 | struct list_head list; | |
88 | u32 handle; | |
e69985c6 | 89 | u32 flags; |
0552c8af CW |
90 | union { |
91 | struct work_struct work; | |
92 | struct rcu_head rcu; | |
93 | }; | |
7091d8c7 | 94 | struct net_device *hw_dev; |
77b9900e JP |
95 | }; |
96 | ||
97 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) | |
98 | { | |
99 | return mask->range.end - mask->range.start; | |
100 | } | |
101 | ||
102 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
103 | { | |
104 | const u8 *bytes = (const u8 *) &mask->key; | |
105 | size_t size = sizeof(mask->key); | |
106 | size_t i, first = 0, last = size - 1; | |
107 | ||
108 | for (i = 0; i < sizeof(mask->key); i++) { | |
109 | if (bytes[i]) { | |
110 | if (!first && i) | |
111 | first = i; | |
112 | last = i; | |
113 | } | |
114 | } | |
115 | mask->range.start = rounddown(first, sizeof(long)); | |
116 | mask->range.end = roundup(last + 1, sizeof(long)); | |
117 | } | |
118 | ||
119 | static void *fl_key_get_start(struct fl_flow_key *key, | |
120 | const struct fl_flow_mask *mask) | |
121 | { | |
122 | return (u8 *) key + mask->range.start; | |
123 | } | |
124 | ||
125 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
126 | struct fl_flow_mask *mask) | |
127 | { | |
128 | const long *lkey = fl_key_get_start(key, mask); | |
129 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
130 | long *lmkey = fl_key_get_start(mkey, mask); | |
131 | int i; | |
132 | ||
133 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
134 | *lmkey++ = *lkey++ & *lmask++; | |
135 | } | |
136 | ||
137 | static void fl_clear_masked_range(struct fl_flow_key *key, | |
138 | struct fl_flow_mask *mask) | |
139 | { | |
140 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
141 | } | |
142 | ||
a3308d8f PB |
143 | static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head, |
144 | struct fl_flow_key *mkey) | |
145 | { | |
146 | return rhashtable_lookup_fast(&head->ht, | |
147 | fl_key_get_start(mkey, &head->mask), | |
148 | head->ht_params); | |
149 | } | |
150 | ||
77b9900e JP |
151 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
152 | struct tcf_result *res) | |
153 | { | |
154 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
155 | struct cls_fl_filter *f; | |
156 | struct fl_flow_key skb_key; | |
157 | struct fl_flow_key skb_mkey; | |
158 | ||
e69985c6 AV |
159 | if (!atomic_read(&head->ht.nelems)) |
160 | return -1; | |
161 | ||
77b9900e | 162 | fl_clear_masked_range(&skb_key, &head->mask); |
bc3103f1 | 163 | |
77b9900e JP |
164 | skb_key.indev_ifindex = skb->skb_iif; |
165 | /* skb_flow_dissect() does not set n_proto in case an unknown protocol, | |
166 | * so do it rather here. | |
167 | */ | |
168 | skb_key.basic.n_proto = skb->protocol; | |
cd79a238 | 169 | skb_flow_dissect(skb, &head->dissector, &skb_key, 0); |
77b9900e JP |
170 | |
171 | fl_set_masked_key(&skb_mkey, &skb_key, &head->mask); | |
172 | ||
a3308d8f | 173 | f = fl_lookup(head, &skb_mkey); |
e8eb36cd | 174 | if (f && !tc_skip_sw(f->flags)) { |
77b9900e JP |
175 | *res = f->res; |
176 | return tcf_exts_exec(skb, &f->exts, res); | |
177 | } | |
178 | return -1; | |
179 | } | |
180 | ||
181 | static int fl_init(struct tcf_proto *tp) | |
182 | { | |
183 | struct cls_fl_head *head; | |
184 | ||
185 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
186 | if (!head) | |
187 | return -ENOBUFS; | |
188 | ||
189 | INIT_LIST_HEAD_RCU(&head->filters); | |
190 | rcu_assign_pointer(tp->root, head); | |
c15ab236 | 191 | idr_init(&head->handle_idr); |
77b9900e JP |
192 | |
193 | return 0; | |
194 | } | |
195 | ||
0dadc117 CW |
196 | static void __fl_destroy_filter(struct cls_fl_filter *f) |
197 | { | |
198 | tcf_exts_destroy(&f->exts); | |
199 | tcf_exts_put_net(&f->exts); | |
200 | kfree(f); | |
201 | } | |
202 | ||
0552c8af | 203 | static void fl_destroy_filter_work(struct work_struct *work) |
77b9900e | 204 | { |
0552c8af | 205 | struct cls_fl_filter *f = container_of(work, struct cls_fl_filter, work); |
77b9900e | 206 | |
0552c8af | 207 | rtnl_lock(); |
0dadc117 | 208 | __fl_destroy_filter(f); |
0552c8af CW |
209 | rtnl_unlock(); |
210 | } | |
211 | ||
212 | static void fl_destroy_filter(struct rcu_head *head) | |
213 | { | |
214 | struct cls_fl_filter *f = container_of(head, struct cls_fl_filter, rcu); | |
215 | ||
216 | INIT_WORK(&f->work, fl_destroy_filter_work); | |
217 | tcf_queue_work(&f->work); | |
77b9900e JP |
218 | } |
219 | ||
3036dab6 | 220 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f) |
5b33f488 | 221 | { |
de4784ca | 222 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 223 | struct tcf_block *block = tp->chain->block; |
5b33f488 | 224 | |
de4784ca JP |
225 | tc_cls_common_offload_init(&cls_flower.common, tp); |
226 | cls_flower.command = TC_CLSFLOWER_DESTROY; | |
227 | cls_flower.cookie = (unsigned long) f; | |
5b33f488 | 228 | |
208c0f4b | 229 | tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 | 230 | &cls_flower, false); |
5b33f488 AV |
231 | } |
232 | ||
e8eb36cd AV |
233 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
234 | struct flow_dissector *dissector, | |
235 | struct fl_flow_key *mask, | |
3036dab6 | 236 | struct cls_fl_filter *f) |
5b33f488 | 237 | { |
de4784ca | 238 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 239 | struct tcf_block *block = tp->chain->block; |
717503b9 | 240 | bool skip_sw = tc_skip_sw(f->flags); |
e8eb36cd | 241 | int err; |
5b33f488 | 242 | |
de4784ca JP |
243 | tc_cls_common_offload_init(&cls_flower.common, tp); |
244 | cls_flower.command = TC_CLSFLOWER_REPLACE; | |
245 | cls_flower.cookie = (unsigned long) f; | |
246 | cls_flower.dissector = dissector; | |
247 | cls_flower.mask = mask; | |
248 | cls_flower.key = &f->mkey; | |
249 | cls_flower.exts = &f->exts; | |
384c181e | 250 | cls_flower.classid = f->res.classid; |
5b33f488 | 251 | |
208c0f4b | 252 | err = tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 JP |
253 | &cls_flower, skip_sw); |
254 | if (err < 0) { | |
255 | fl_hw_destroy_filter(tp, f); | |
e8eb36cd | 256 | return err; |
717503b9 JP |
257 | } else if (err > 0) { |
258 | f->flags |= TCA_CLS_FLAGS_IN_HW; | |
259 | } | |
260 | ||
261 | if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW)) | |
262 | return -EINVAL; | |
263 | ||
e8eb36cd | 264 | return 0; |
5b33f488 AV |
265 | } |
266 | ||
10cbc684 AV |
267 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
268 | { | |
de4784ca | 269 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 270 | struct tcf_block *block = tp->chain->block; |
10cbc684 | 271 | |
de4784ca JP |
272 | tc_cls_common_offload_init(&cls_flower.common, tp); |
273 | cls_flower.command = TC_CLSFLOWER_STATS; | |
274 | cls_flower.cookie = (unsigned long) f; | |
275 | cls_flower.exts = &f->exts; | |
384c181e | 276 | cls_flower.classid = f->res.classid; |
10cbc684 | 277 | |
208c0f4b | 278 | tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 | 279 | &cls_flower, false); |
10cbc684 AV |
280 | } |
281 | ||
13fa876e RD |
282 | static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f) |
283 | { | |
c15ab236 CM |
284 | struct cls_fl_head *head = rtnl_dereference(tp->root); |
285 | ||
286 | idr_remove_ext(&head->handle_idr, f->handle); | |
13fa876e | 287 | list_del_rcu(&f->list); |
79685219 | 288 | if (!tc_skip_hw(f->flags)) |
3036dab6 | 289 | fl_hw_destroy_filter(tp, f); |
13fa876e | 290 | tcf_unbind_filter(tp, &f->res); |
0dadc117 CW |
291 | if (tcf_exts_get_net(&f->exts)) |
292 | call_rcu(&f->rcu, fl_destroy_filter); | |
293 | else | |
294 | __fl_destroy_filter(f); | |
13fa876e RD |
295 | } |
296 | ||
d9363774 DB |
297 | static void fl_destroy_sleepable(struct work_struct *work) |
298 | { | |
299 | struct cls_fl_head *head = container_of(work, struct cls_fl_head, | |
300 | work); | |
301 | if (head->mask_assigned) | |
302 | rhashtable_destroy(&head->ht); | |
303 | kfree(head); | |
304 | module_put(THIS_MODULE); | |
305 | } | |
306 | ||
307 | static void fl_destroy_rcu(struct rcu_head *rcu) | |
308 | { | |
309 | struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu); | |
310 | ||
311 | INIT_WORK(&head->work, fl_destroy_sleepable); | |
312 | schedule_work(&head->work); | |
313 | } | |
314 | ||
763dbf63 | 315 | static void fl_destroy(struct tcf_proto *tp) |
77b9900e JP |
316 | { |
317 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
318 | struct cls_fl_filter *f, *next; | |
319 | ||
13fa876e RD |
320 | list_for_each_entry_safe(f, next, &head->filters, list) |
321 | __fl_delete(tp, f); | |
c15ab236 | 322 | idr_destroy(&head->handle_idr); |
d9363774 DB |
323 | |
324 | __module_get(THIS_MODULE); | |
325 | call_rcu(&head->rcu, fl_destroy_rcu); | |
77b9900e JP |
326 | } |
327 | ||
8113c095 | 328 | static void *fl_get(struct tcf_proto *tp, u32 handle) |
77b9900e JP |
329 | { |
330 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
77b9900e | 331 | |
c15ab236 | 332 | return idr_find_ext(&head->handle_idr, handle); |
77b9900e JP |
333 | } |
334 | ||
335 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
336 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
337 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
338 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
339 | .len = IFNAMSIZ }, | |
340 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
341 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
342 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
343 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
344 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
345 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
346 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
347 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
348 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
349 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
350 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
351 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
352 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
353 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
354 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
355 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
356 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
357 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
358 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
359 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
360 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
361 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
362 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
363 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
364 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
365 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
366 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
367 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
368 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
369 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
370 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
371 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
372 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
373 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
374 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
375 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
376 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
377 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
378 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
379 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
380 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
381 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
382 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
383 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
384 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
385 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
386 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
387 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
388 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
389 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
390 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
391 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
392 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
393 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
394 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
395 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
396 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
397 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
398 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
399 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
400 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
401 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
402 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
403 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
404 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
405 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
fdfc7dd6 JP |
406 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
407 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
408 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
409 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
410 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
411 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
77b9900e JP |
412 | }; |
413 | ||
414 | static void fl_set_key_val(struct nlattr **tb, | |
415 | void *val, int val_type, | |
416 | void *mask, int mask_type, int len) | |
417 | { | |
418 | if (!tb[val_type]) | |
419 | return; | |
420 | memcpy(val, nla_data(tb[val_type]), len); | |
421 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
422 | memset(mask, 0xff, len); | |
423 | else | |
424 | memcpy(mask, nla_data(tb[mask_type]), len); | |
425 | } | |
426 | ||
1a7fca63 BL |
427 | static int fl_set_key_mpls(struct nlattr **tb, |
428 | struct flow_dissector_key_mpls *key_val, | |
429 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
430 | { |
431 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
432 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
433 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
434 | } | |
435 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
436 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
437 | ||
438 | if (bos & ~MPLS_BOS_MASK) | |
439 | return -EINVAL; | |
440 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
441 | key_mask->mpls_bos = MPLS_BOS_MASK; |
442 | } | |
443 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
444 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
445 | ||
446 | if (tc & ~MPLS_TC_MASK) | |
447 | return -EINVAL; | |
448 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
449 | key_mask->mpls_tc = MPLS_TC_MASK; |
450 | } | |
451 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
452 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
453 | ||
454 | if (label & ~MPLS_LABEL_MASK) | |
455 | return -EINVAL; | |
456 | key_val->mpls_label = label; | |
a577d8f7 BL |
457 | key_mask->mpls_label = MPLS_LABEL_MASK; |
458 | } | |
1a7fca63 | 459 | return 0; |
a577d8f7 BL |
460 | } |
461 | ||
9399ae9a HHZ |
462 | static void fl_set_key_vlan(struct nlattr **tb, |
463 | struct flow_dissector_key_vlan *key_val, | |
464 | struct flow_dissector_key_vlan *key_mask) | |
465 | { | |
466 | #define VLAN_PRIORITY_MASK 0x7 | |
467 | ||
468 | if (tb[TCA_FLOWER_KEY_VLAN_ID]) { | |
469 | key_val->vlan_id = | |
470 | nla_get_u16(tb[TCA_FLOWER_KEY_VLAN_ID]) & VLAN_VID_MASK; | |
471 | key_mask->vlan_id = VLAN_VID_MASK; | |
472 | } | |
473 | if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) { | |
474 | key_val->vlan_priority = | |
475 | nla_get_u8(tb[TCA_FLOWER_KEY_VLAN_PRIO]) & | |
476 | VLAN_PRIORITY_MASK; | |
477 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
478 | } | |
479 | } | |
480 | ||
faa3ffce OG |
481 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
482 | u32 *dissector_key, u32 *dissector_mask, | |
483 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
484 | { | |
485 | if (flower_mask & flower_flag_bit) { | |
486 | *dissector_mask |= dissector_flag_bit; | |
487 | if (flower_key & flower_flag_bit) | |
488 | *dissector_key |= dissector_flag_bit; | |
489 | } | |
490 | } | |
491 | ||
d9724772 OG |
492 | static int fl_set_key_flags(struct nlattr **tb, |
493 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
494 | { |
495 | u32 key, mask; | |
496 | ||
d9724772 OG |
497 | /* mask is mandatory for flags */ |
498 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
499 | return -EINVAL; | |
faa3ffce OG |
500 | |
501 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 502 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
503 | |
504 | *flags_key = 0; | |
505 | *flags_mask = 0; | |
506 | ||
507 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
508 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
d9724772 OG |
509 | |
510 | return 0; | |
faa3ffce OG |
511 | } |
512 | ||
4d80cc0a OG |
513 | static void fl_set_key_ip(struct nlattr **tb, |
514 | struct flow_dissector_key_ip *key, | |
515 | struct flow_dissector_key_ip *mask) | |
516 | { | |
517 | fl_set_key_val(tb, &key->tos, TCA_FLOWER_KEY_IP_TOS, | |
518 | &mask->tos, TCA_FLOWER_KEY_IP_TOS_MASK, | |
519 | sizeof(key->tos)); | |
520 | ||
521 | fl_set_key_val(tb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, | |
522 | &mask->ttl, TCA_FLOWER_KEY_IP_TTL_MASK, | |
523 | sizeof(key->ttl)); | |
524 | } | |
525 | ||
77b9900e JP |
526 | static int fl_set_key(struct net *net, struct nlattr **tb, |
527 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
528 | { | |
9399ae9a | 529 | __be16 ethertype; |
d9724772 | 530 | int ret = 0; |
dd3aa3b5 | 531 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 532 | if (tb[TCA_FLOWER_INDEV]) { |
dd3aa3b5 | 533 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); |
77b9900e JP |
534 | if (err < 0) |
535 | return err; | |
536 | key->indev_ifindex = err; | |
537 | mask->indev_ifindex = 0xffffffff; | |
538 | } | |
dd3aa3b5 | 539 | #endif |
77b9900e JP |
540 | |
541 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
542 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
543 | sizeof(key->eth.dst)); | |
544 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
545 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
546 | sizeof(key->eth.src)); | |
66530bdf | 547 | |
0b498a52 | 548 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
549 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
550 | ||
0b498a52 AB |
551 | if (ethertype == htons(ETH_P_8021Q)) { |
552 | fl_set_key_vlan(tb, &key->vlan, &mask->vlan); | |
553 | fl_set_key_val(tb, &key->basic.n_proto, | |
554 | TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
555 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
556 | sizeof(key->basic.n_proto)); | |
557 | } else { | |
558 | key->basic.n_proto = ethertype; | |
559 | mask->basic.n_proto = cpu_to_be16(~0); | |
560 | } | |
9399ae9a | 561 | } |
66530bdf | 562 | |
77b9900e JP |
563 | if (key->basic.n_proto == htons(ETH_P_IP) || |
564 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
565 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
566 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
567 | sizeof(key->basic.ip_proto)); | |
4d80cc0a | 568 | fl_set_key_ip(tb, &key->ip, &mask->ip); |
77b9900e | 569 | } |
66530bdf JHS |
570 | |
571 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
572 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 573 | mask->control.addr_type = ~0; |
77b9900e JP |
574 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
575 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
576 | sizeof(key->ipv4.src)); | |
577 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
578 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
579 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
580 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
581 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 582 | mask->control.addr_type = ~0; |
77b9900e JP |
583 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
584 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
585 | sizeof(key->ipv6.src)); | |
586 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
587 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
588 | sizeof(key->ipv6.dst)); | |
589 | } | |
66530bdf | 590 | |
77b9900e JP |
591 | if (key->basic.ip_proto == IPPROTO_TCP) { |
592 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 593 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
594 | sizeof(key->tp.src)); |
595 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 596 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 597 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
598 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
599 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
600 | sizeof(key->tcp.flags)); | |
77b9900e JP |
601 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
602 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 603 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
604 | sizeof(key->tp.src)); |
605 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 606 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 607 | sizeof(key->tp.dst)); |
5976c5f4 SH |
608 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
609 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
610 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
611 | sizeof(key->tp.src)); | |
612 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
613 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
614 | sizeof(key->tp.dst)); | |
7b684884 SH |
615 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
616 | key->basic.ip_proto == IPPROTO_ICMP) { | |
617 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
618 | &mask->icmp.type, | |
619 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
620 | sizeof(key->icmp.type)); | |
621 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
622 | &mask->icmp.code, | |
623 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
624 | sizeof(key->icmp.code)); | |
625 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
626 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
627 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
628 | &mask->icmp.type, | |
629 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
630 | sizeof(key->icmp.type)); | |
040587af | 631 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 632 | &mask->icmp.code, |
040587af | 633 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 634 | sizeof(key->icmp.code)); |
a577d8f7 BL |
635 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
636 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
637 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
638 | if (ret) | |
639 | return ret; | |
99d31326 SH |
640 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
641 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
642 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
643 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
644 | sizeof(key->arp.sip)); | |
645 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
646 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
647 | sizeof(key->arp.tip)); | |
648 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
649 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
650 | sizeof(key->arp.op)); | |
651 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
652 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
653 | sizeof(key->arp.sha)); | |
654 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
655 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
656 | sizeof(key->arp.tha)); | |
77b9900e JP |
657 | } |
658 | ||
bc3103f1 AV |
659 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
660 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
661 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 662 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
663 | fl_set_key_val(tb, &key->enc_ipv4.src, |
664 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
665 | &mask->enc_ipv4.src, | |
666 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
667 | sizeof(key->enc_ipv4.src)); | |
668 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
669 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
670 | &mask->enc_ipv4.dst, | |
671 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
672 | sizeof(key->enc_ipv4.dst)); | |
673 | } | |
674 | ||
675 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
676 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
677 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 678 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
679 | fl_set_key_val(tb, &key->enc_ipv6.src, |
680 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
681 | &mask->enc_ipv6.src, | |
682 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
683 | sizeof(key->enc_ipv6.src)); | |
684 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
685 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
686 | &mask->enc_ipv6.dst, | |
687 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
688 | sizeof(key->enc_ipv6.dst)); | |
689 | } | |
690 | ||
691 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 692 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
693 | sizeof(key->enc_key_id.keyid)); |
694 | ||
f4d997fd HHZ |
695 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
696 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
697 | sizeof(key->enc_tp.src)); | |
698 | ||
699 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
700 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
701 | sizeof(key->enc_tp.dst)); | |
702 | ||
d9724772 OG |
703 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
704 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 705 | |
d9724772 | 706 | return ret; |
77b9900e JP |
707 | } |
708 | ||
709 | static bool fl_mask_eq(struct fl_flow_mask *mask1, | |
710 | struct fl_flow_mask *mask2) | |
711 | { | |
712 | const long *lmask1 = fl_key_get_start(&mask1->key, mask1); | |
713 | const long *lmask2 = fl_key_get_start(&mask2->key, mask2); | |
714 | ||
715 | return !memcmp(&mask1->range, &mask2->range, sizeof(mask1->range)) && | |
716 | !memcmp(lmask1, lmask2, fl_mask_range(mask1)); | |
717 | } | |
718 | ||
719 | static const struct rhashtable_params fl_ht_params = { | |
720 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
721 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
722 | .automatic_shrinking = true, | |
723 | }; | |
724 | ||
725 | static int fl_init_hashtable(struct cls_fl_head *head, | |
726 | struct fl_flow_mask *mask) | |
727 | { | |
728 | head->ht_params = fl_ht_params; | |
729 | head->ht_params.key_len = fl_mask_range(mask); | |
730 | head->ht_params.key_offset += mask->range.start; | |
731 | ||
732 | return rhashtable_init(&head->ht, &head->ht_params); | |
733 | } | |
734 | ||
735 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
736 | #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member)) | |
77b9900e | 737 | |
339ba878 HHZ |
738 | #define FL_KEY_IS_MASKED(mask, member) \ |
739 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
740 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
741 | |
742 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
743 | do { \ | |
744 | keys[cnt].key_id = id; \ | |
745 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
746 | cnt++; \ | |
747 | } while(0); | |
748 | ||
339ba878 | 749 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 750 | do { \ |
339ba878 | 751 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
752 | FL_KEY_SET(keys, cnt, id, member); \ |
753 | } while(0); | |
754 | ||
755 | static void fl_init_dissector(struct cls_fl_head *head, | |
756 | struct fl_flow_mask *mask) | |
757 | { | |
758 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
759 | size_t cnt = 0; | |
760 | ||
42aecaa9 | 761 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 762 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
339ba878 HHZ |
763 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
764 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); | |
765 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
766 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); | |
767 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
768 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); | |
769 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
770 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
4d80cc0a OG |
771 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
772 | FLOW_DISSECTOR_KEY_IP, ip); | |
fdfc7dd6 JP |
773 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
774 | FLOW_DISSECTOR_KEY_TCP, tcp); | |
7b684884 SH |
775 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
776 | FLOW_DISSECTOR_KEY_ICMP, icmp); | |
99d31326 SH |
777 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
778 | FLOW_DISSECTOR_KEY_ARP, arp); | |
a577d8f7 BL |
779 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
780 | FLOW_DISSECTOR_KEY_MPLS, mpls); | |
9399ae9a HHZ |
781 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
782 | FLOW_DISSECTOR_KEY_VLAN, vlan); | |
519d1052 HHZ |
783 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
784 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); | |
785 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
786 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); | |
787 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
788 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); | |
789 | if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) || | |
790 | FL_KEY_IS_MASKED(&mask->key, enc_ipv6)) | |
791 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
792 | enc_control); | |
f4d997fd HHZ |
793 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
794 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); | |
77b9900e JP |
795 | |
796 | skb_flow_dissector_init(&head->dissector, keys, cnt); | |
797 | } | |
798 | ||
799 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
800 | struct fl_flow_mask *mask) | |
801 | { | |
802 | int err; | |
803 | ||
804 | if (head->mask_assigned) { | |
805 | if (!fl_mask_eq(&head->mask, mask)) | |
806 | return -EINVAL; | |
807 | else | |
808 | return 0; | |
809 | } | |
810 | ||
811 | /* Mask is not assigned yet. So assign it and init hashtable | |
812 | * according to that. | |
813 | */ | |
814 | err = fl_init_hashtable(head, mask); | |
815 | if (err) | |
816 | return err; | |
817 | memcpy(&head->mask, mask, sizeof(head->mask)); | |
818 | head->mask_assigned = true; | |
819 | ||
820 | fl_init_dissector(head, mask); | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
825 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
826 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
827 | unsigned long base, struct nlattr **tb, | |
828 | struct nlattr *est, bool ovr) | |
829 | { | |
77b9900e JP |
830 | int err; |
831 | ||
45507529 | 832 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr); |
77b9900e JP |
833 | if (err < 0) |
834 | return err; | |
835 | ||
836 | if (tb[TCA_FLOWER_CLASSID]) { | |
837 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
838 | tcf_bind_filter(tp, &f->res, base); | |
839 | } | |
840 | ||
841 | err = fl_set_key(net, tb, &f->key, &mask->key); | |
842 | if (err) | |
45507529 | 843 | return err; |
77b9900e JP |
844 | |
845 | fl_mask_update_range(mask); | |
846 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
847 | ||
77b9900e | 848 | return 0; |
77b9900e JP |
849 | } |
850 | ||
77b9900e JP |
851 | static int fl_change(struct net *net, struct sk_buff *in_skb, |
852 | struct tcf_proto *tp, unsigned long base, | |
853 | u32 handle, struct nlattr **tca, | |
8113c095 | 854 | void **arg, bool ovr) |
77b9900e JP |
855 | { |
856 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 857 | struct cls_fl_filter *fold = *arg; |
77b9900e | 858 | struct cls_fl_filter *fnew; |
39b7b6a6 | 859 | struct nlattr **tb; |
77b9900e | 860 | struct fl_flow_mask mask = {}; |
c15ab236 | 861 | unsigned long idr_index; |
77b9900e JP |
862 | int err; |
863 | ||
864 | if (!tca[TCA_OPTIONS]) | |
865 | return -EINVAL; | |
866 | ||
39b7b6a6 AB |
867 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
868 | if (!tb) | |
869 | return -ENOBUFS; | |
870 | ||
fceb6435 JB |
871 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
872 | fl_policy, NULL); | |
77b9900e | 873 | if (err < 0) |
39b7b6a6 | 874 | goto errout_tb; |
77b9900e | 875 | |
39b7b6a6 AB |
876 | if (fold && handle && fold->handle != handle) { |
877 | err = -EINVAL; | |
878 | goto errout_tb; | |
879 | } | |
77b9900e JP |
880 | |
881 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
882 | if (!fnew) { |
883 | err = -ENOBUFS; | |
884 | goto errout_tb; | |
885 | } | |
77b9900e | 886 | |
b9a24bb7 WC |
887 | err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0); |
888 | if (err < 0) | |
889 | goto errout; | |
77b9900e JP |
890 | |
891 | if (!handle) { | |
c15ab236 CM |
892 | err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index, |
893 | 1, 0x80000000, GFP_KERNEL); | |
894 | if (err) | |
77b9900e | 895 | goto errout; |
c15ab236 CM |
896 | fnew->handle = idr_index; |
897 | } | |
898 | ||
899 | /* user specifies a handle and it doesn't exist */ | |
900 | if (handle && !fold) { | |
901 | err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index, | |
902 | handle, handle + 1, GFP_KERNEL); | |
903 | if (err) | |
904 | goto errout; | |
905 | fnew->handle = idr_index; | |
77b9900e | 906 | } |
77b9900e | 907 | |
e69985c6 AV |
908 | if (tb[TCA_FLOWER_FLAGS]) { |
909 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
910 | ||
911 | if (!tc_flags_valid(fnew->flags)) { | |
912 | err = -EINVAL; | |
fe2502e4 | 913 | goto errout_idr; |
e69985c6 AV |
914 | } |
915 | } | |
5b33f488 | 916 | |
77b9900e JP |
917 | err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr); |
918 | if (err) | |
fe2502e4 | 919 | goto errout_idr; |
77b9900e JP |
920 | |
921 | err = fl_check_assign_mask(head, &mask); | |
922 | if (err) | |
fe2502e4 | 923 | goto errout_idr; |
77b9900e | 924 | |
e8eb36cd | 925 | if (!tc_skip_sw(fnew->flags)) { |
a3308d8f PB |
926 | if (!fold && fl_lookup(head, &fnew->mkey)) { |
927 | err = -EEXIST; | |
fe2502e4 | 928 | goto errout_idr; |
a3308d8f PB |
929 | } |
930 | ||
e69985c6 AV |
931 | err = rhashtable_insert_fast(&head->ht, &fnew->ht_node, |
932 | head->ht_params); | |
933 | if (err) | |
fe2502e4 | 934 | goto errout_idr; |
e69985c6 | 935 | } |
5b33f488 | 936 | |
79685219 HHZ |
937 | if (!tc_skip_hw(fnew->flags)) { |
938 | err = fl_hw_replace_filter(tp, | |
939 | &head->dissector, | |
940 | &mask.key, | |
3036dab6 | 941 | fnew); |
79685219 | 942 | if (err) |
fe2502e4 | 943 | goto errout_idr; |
79685219 | 944 | } |
5b33f488 | 945 | |
55593960 OG |
946 | if (!tc_in_hw(fnew->flags)) |
947 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
948 | ||
5b33f488 | 949 | if (fold) { |
725cbb62 JP |
950 | if (!tc_skip_sw(fold->flags)) |
951 | rhashtable_remove_fast(&head->ht, &fold->ht_node, | |
952 | head->ht_params); | |
79685219 | 953 | if (!tc_skip_hw(fold->flags)) |
3036dab6 | 954 | fl_hw_destroy_filter(tp, fold); |
5b33f488 | 955 | } |
77b9900e | 956 | |
8113c095 | 957 | *arg = fnew; |
77b9900e JP |
958 | |
959 | if (fold) { | |
c15ab236 CM |
960 | fnew->handle = handle; |
961 | idr_replace_ext(&head->handle_idr, fnew, fnew->handle); | |
ff3532f2 | 962 | list_replace_rcu(&fold->list, &fnew->list); |
77b9900e | 963 | tcf_unbind_filter(tp, &fold->res); |
0dadc117 | 964 | tcf_exts_get_net(&fold->exts); |
77b9900e JP |
965 | call_rcu(&fold->rcu, fl_destroy_filter); |
966 | } else { | |
967 | list_add_tail_rcu(&fnew->list, &head->filters); | |
968 | } | |
969 | ||
39b7b6a6 | 970 | kfree(tb); |
77b9900e JP |
971 | return 0; |
972 | ||
fe2502e4 CW |
973 | errout_idr: |
974 | if (fnew->handle) | |
975 | idr_remove_ext(&head->handle_idr, fnew->handle); | |
77b9900e | 976 | errout: |
b9a24bb7 | 977 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 978 | kfree(fnew); |
39b7b6a6 AB |
979 | errout_tb: |
980 | kfree(tb); | |
77b9900e JP |
981 | return err; |
982 | } | |
983 | ||
8113c095 | 984 | static int fl_delete(struct tcf_proto *tp, void *arg, bool *last) |
77b9900e JP |
985 | { |
986 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 987 | struct cls_fl_filter *f = arg; |
77b9900e | 988 | |
725cbb62 JP |
989 | if (!tc_skip_sw(f->flags)) |
990 | rhashtable_remove_fast(&head->ht, &f->ht_node, | |
991 | head->ht_params); | |
13fa876e | 992 | __fl_delete(tp, f); |
763dbf63 | 993 | *last = list_empty(&head->filters); |
77b9900e JP |
994 | return 0; |
995 | } | |
996 | ||
997 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg) | |
998 | { | |
999 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1000 | struct cls_fl_filter *f; | |
1001 | ||
1002 | list_for_each_entry_rcu(f, &head->filters, list) { | |
1003 | if (arg->count < arg->skip) | |
1004 | goto skip; | |
8113c095 | 1005 | if (arg->fn(tp, f, arg) < 0) { |
77b9900e JP |
1006 | arg->stop = 1; |
1007 | break; | |
1008 | } | |
1009 | skip: | |
1010 | arg->count++; | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | static int fl_dump_key_val(struct sk_buff *skb, | |
1015 | void *val, int val_type, | |
1016 | void *mask, int mask_type, int len) | |
1017 | { | |
1018 | int err; | |
1019 | ||
1020 | if (!memchr_inv(mask, 0, len)) | |
1021 | return 0; | |
1022 | err = nla_put(skb, val_type, len, val); | |
1023 | if (err) | |
1024 | return err; | |
1025 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1026 | err = nla_put(skb, mask_type, len, mask); | |
1027 | if (err) | |
1028 | return err; | |
1029 | } | |
1030 | return 0; | |
1031 | } | |
1032 | ||
a577d8f7 BL |
1033 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1034 | struct flow_dissector_key_mpls *mpls_key, | |
1035 | struct flow_dissector_key_mpls *mpls_mask) | |
1036 | { | |
1037 | int err; | |
1038 | ||
1039 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1040 | return 0; | |
1041 | if (mpls_mask->mpls_ttl) { | |
1042 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1043 | mpls_key->mpls_ttl); | |
1044 | if (err) | |
1045 | return err; | |
1046 | } | |
1047 | if (mpls_mask->mpls_tc) { | |
1048 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1049 | mpls_key->mpls_tc); | |
1050 | if (err) | |
1051 | return err; | |
1052 | } | |
1053 | if (mpls_mask->mpls_label) { | |
1054 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1055 | mpls_key->mpls_label); | |
1056 | if (err) | |
1057 | return err; | |
1058 | } | |
1059 | if (mpls_mask->mpls_bos) { | |
1060 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1061 | mpls_key->mpls_bos); | |
1062 | if (err) | |
1063 | return err; | |
1064 | } | |
1065 | return 0; | |
1066 | } | |
1067 | ||
4d80cc0a OG |
1068 | static int fl_dump_key_ip(struct sk_buff *skb, |
1069 | struct flow_dissector_key_ip *key, | |
1070 | struct flow_dissector_key_ip *mask) | |
1071 | { | |
1072 | if (fl_dump_key_val(skb, &key->tos, TCA_FLOWER_KEY_IP_TOS, &mask->tos, | |
1073 | TCA_FLOWER_KEY_IP_TOS_MASK, sizeof(key->tos)) || | |
1074 | fl_dump_key_val(skb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, &mask->ttl, | |
1075 | TCA_FLOWER_KEY_IP_TTL_MASK, sizeof(key->ttl))) | |
1076 | return -1; | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
9399ae9a HHZ |
1081 | static int fl_dump_key_vlan(struct sk_buff *skb, |
1082 | struct flow_dissector_key_vlan *vlan_key, | |
1083 | struct flow_dissector_key_vlan *vlan_mask) | |
1084 | { | |
1085 | int err; | |
1086 | ||
1087 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1088 | return 0; | |
1089 | if (vlan_mask->vlan_id) { | |
1090 | err = nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ID, | |
1091 | vlan_key->vlan_id); | |
1092 | if (err) | |
1093 | return err; | |
1094 | } | |
1095 | if (vlan_mask->vlan_priority) { | |
1096 | err = nla_put_u8(skb, TCA_FLOWER_KEY_VLAN_PRIO, | |
1097 | vlan_key->vlan_priority); | |
1098 | if (err) | |
1099 | return err; | |
1100 | } | |
1101 | return 0; | |
1102 | } | |
1103 | ||
faa3ffce OG |
1104 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1105 | u32 *flower_key, u32 *flower_mask, | |
1106 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1107 | { | |
1108 | if (dissector_mask & dissector_flag_bit) { | |
1109 | *flower_mask |= flower_flag_bit; | |
1110 | if (dissector_key & dissector_flag_bit) | |
1111 | *flower_key |= flower_flag_bit; | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1116 | { | |
1117 | u32 key, mask; | |
1118 | __be32 _key, _mask; | |
1119 | int err; | |
1120 | ||
1121 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1122 | return 0; | |
1123 | ||
1124 | key = 0; | |
1125 | mask = 0; | |
1126 | ||
1127 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1128 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
1129 | ||
1130 | _key = cpu_to_be32(key); | |
1131 | _mask = cpu_to_be32(mask); | |
1132 | ||
1133 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1134 | if (err) | |
1135 | return err; | |
1136 | ||
1137 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1138 | } | |
1139 | ||
8113c095 | 1140 | static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh, |
77b9900e JP |
1141 | struct sk_buff *skb, struct tcmsg *t) |
1142 | { | |
1143 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 1144 | struct cls_fl_filter *f = fh; |
77b9900e JP |
1145 | struct nlattr *nest; |
1146 | struct fl_flow_key *key, *mask; | |
1147 | ||
1148 | if (!f) | |
1149 | return skb->len; | |
1150 | ||
1151 | t->tcm_handle = f->handle; | |
1152 | ||
1153 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
1154 | if (!nest) | |
1155 | goto nla_put_failure; | |
1156 | ||
1157 | if (f->res.classid && | |
1158 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
1159 | goto nla_put_failure; | |
1160 | ||
1161 | key = &f->key; | |
1162 | mask = &head->mask.key; | |
1163 | ||
1164 | if (mask->indev_ifindex) { | |
1165 | struct net_device *dev; | |
1166 | ||
1167 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1168 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1169 | goto nla_put_failure; | |
1170 | } | |
1171 | ||
79685219 HHZ |
1172 | if (!tc_skip_hw(f->flags)) |
1173 | fl_hw_update_stats(tp, f); | |
10cbc684 | 1174 | |
77b9900e JP |
1175 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, |
1176 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1177 | sizeof(key->eth.dst)) || | |
1178 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1179 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1180 | sizeof(key->eth.src)) || | |
1181 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1182 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1183 | sizeof(key->basic.n_proto))) | |
1184 | goto nla_put_failure; | |
9399ae9a | 1185 | |
a577d8f7 BL |
1186 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1187 | goto nla_put_failure; | |
1188 | ||
9399ae9a HHZ |
1189 | if (fl_dump_key_vlan(skb, &key->vlan, &mask->vlan)) |
1190 | goto nla_put_failure; | |
1191 | ||
77b9900e JP |
1192 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
1193 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 1194 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 1195 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a OG |
1196 | sizeof(key->basic.ip_proto)) || |
1197 | fl_dump_key_ip(skb, &key->ip, &mask->ip))) | |
77b9900e JP |
1198 | goto nla_put_failure; |
1199 | ||
c3f83241 | 1200 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
1201 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1202 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1203 | sizeof(key->ipv4.src)) || | |
1204 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1205 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1206 | sizeof(key->ipv4.dst)))) | |
1207 | goto nla_put_failure; | |
c3f83241 | 1208 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
1209 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1210 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1211 | sizeof(key->ipv6.src)) || | |
1212 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1213 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1214 | sizeof(key->ipv6.dst)))) | |
1215 | goto nla_put_failure; | |
1216 | ||
1217 | if (key->basic.ip_proto == IPPROTO_TCP && | |
1218 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1219 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1220 | sizeof(key->tp.src)) || |
1221 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1222 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
1223 | sizeof(key->tp.dst)) || |
1224 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
1225 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1226 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
1227 | goto nla_put_failure; |
1228 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
1229 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1230 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1231 | sizeof(key->tp.src)) || |
1232 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1233 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
1234 | sizeof(key->tp.dst)))) |
1235 | goto nla_put_failure; | |
1236 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
1237 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1238 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1239 | sizeof(key->tp.src)) || | |
1240 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1241 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
1242 | sizeof(key->tp.dst)))) |
1243 | goto nla_put_failure; | |
7b684884 SH |
1244 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
1245 | key->basic.ip_proto == IPPROTO_ICMP && | |
1246 | (fl_dump_key_val(skb, &key->icmp.type, | |
1247 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
1248 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1249 | sizeof(key->icmp.type)) || | |
1250 | fl_dump_key_val(skb, &key->icmp.code, | |
1251 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
1252 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1253 | sizeof(key->icmp.code)))) | |
1254 | goto nla_put_failure; | |
1255 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1256 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
1257 | (fl_dump_key_val(skb, &key->icmp.type, | |
1258 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
1259 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1260 | sizeof(key->icmp.type)) || | |
1261 | fl_dump_key_val(skb, &key->icmp.code, | |
1262 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
1263 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
1264 | sizeof(key->icmp.code)))) | |
1265 | goto nla_put_failure; | |
99d31326 SH |
1266 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
1267 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
1268 | (fl_dump_key_val(skb, &key->arp.sip, | |
1269 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
1270 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1271 | sizeof(key->arp.sip)) || | |
1272 | fl_dump_key_val(skb, &key->arp.tip, | |
1273 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
1274 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1275 | sizeof(key->arp.tip)) || | |
1276 | fl_dump_key_val(skb, &key->arp.op, | |
1277 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
1278 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
1279 | sizeof(key->arp.op)) || | |
1280 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1281 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1282 | sizeof(key->arp.sha)) || | |
1283 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1284 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1285 | sizeof(key->arp.tha)))) | |
1286 | goto nla_put_failure; | |
77b9900e | 1287 | |
bc3103f1 AV |
1288 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
1289 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
1290 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
1291 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1292 | sizeof(key->enc_ipv4.src)) || | |
1293 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
1294 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
1295 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1296 | sizeof(key->enc_ipv4.dst)))) | |
1297 | goto nla_put_failure; | |
1298 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
1299 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
1300 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
1301 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1302 | sizeof(key->enc_ipv6.src)) || | |
1303 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
1304 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1305 | &mask->enc_ipv6.dst, | |
1306 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1307 | sizeof(key->enc_ipv6.dst)))) | |
1308 | goto nla_put_failure; | |
1309 | ||
1310 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1311 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
1312 | sizeof(key->enc_key_id)) || |
1313 | fl_dump_key_val(skb, &key->enc_tp.src, | |
1314 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
1315 | &mask->enc_tp.src, | |
1316 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1317 | sizeof(key->enc_tp.src)) || | |
1318 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
1319 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1320 | &mask->enc_tp.dst, | |
1321 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1322 | sizeof(key->enc_tp.dst))) | |
bc3103f1 AV |
1323 | goto nla_put_failure; |
1324 | ||
faa3ffce OG |
1325 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
1326 | goto nla_put_failure; | |
1327 | ||
749e6720 OG |
1328 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
1329 | goto nla_put_failure; | |
e69985c6 | 1330 | |
77b9900e JP |
1331 | if (tcf_exts_dump(skb, &f->exts)) |
1332 | goto nla_put_failure; | |
1333 | ||
1334 | nla_nest_end(skb, nest); | |
1335 | ||
1336 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
1337 | goto nla_put_failure; | |
1338 | ||
1339 | return skb->len; | |
1340 | ||
1341 | nla_put_failure: | |
1342 | nla_nest_cancel(skb, nest); | |
1343 | return -1; | |
1344 | } | |
1345 | ||
07d79fc7 CW |
1346 | static void fl_bind_class(void *fh, u32 classid, unsigned long cl) |
1347 | { | |
1348 | struct cls_fl_filter *f = fh; | |
1349 | ||
1350 | if (f && f->res.classid == classid) | |
1351 | f->res.class = cl; | |
1352 | } | |
1353 | ||
77b9900e JP |
1354 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { |
1355 | .kind = "flower", | |
1356 | .classify = fl_classify, | |
1357 | .init = fl_init, | |
1358 | .destroy = fl_destroy, | |
1359 | .get = fl_get, | |
1360 | .change = fl_change, | |
1361 | .delete = fl_delete, | |
1362 | .walk = fl_walk, | |
1363 | .dump = fl_dump, | |
07d79fc7 | 1364 | .bind_class = fl_bind_class, |
77b9900e JP |
1365 | .owner = THIS_MODULE, |
1366 | }; | |
1367 | ||
1368 | static int __init cls_fl_init(void) | |
1369 | { | |
1370 | return register_tcf_proto_ops(&cls_fl_ops); | |
1371 | } | |
1372 | ||
1373 | static void __exit cls_fl_exit(void) | |
1374 | { | |
1375 | unregister_tcf_proto_ops(&cls_fl_ops); | |
1376 | } | |
1377 | ||
1378 | module_init(cls_fl_init); | |
1379 | module_exit(cls_fl_exit); | |
1380 | ||
1381 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
1382 | MODULE_DESCRIPTION("Flower classifier"); | |
1383 | MODULE_LICENSE("GPL v2"); |