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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; |
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; |
77b9900e JP |
52 | } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */ |
53 | ||
54 | struct fl_flow_mask_range { | |
55 | unsigned short int start; | |
56 | unsigned short int end; | |
57 | }; | |
58 | ||
59 | struct fl_flow_mask { | |
60 | struct fl_flow_key key; | |
61 | struct fl_flow_mask_range range; | |
62 | struct rcu_head rcu; | |
63 | }; | |
64 | ||
65 | struct cls_fl_head { | |
66 | struct rhashtable ht; | |
67 | struct fl_flow_mask mask; | |
68 | struct flow_dissector dissector; | |
69 | u32 hgen; | |
70 | bool mask_assigned; | |
71 | struct list_head filters; | |
72 | struct rhashtable_params ht_params; | |
d9363774 DB |
73 | union { |
74 | struct work_struct work; | |
75 | struct rcu_head rcu; | |
76 | }; | |
77b9900e JP |
77 | }; |
78 | ||
79 | struct cls_fl_filter { | |
80 | struct rhash_head ht_node; | |
81 | struct fl_flow_key mkey; | |
82 | struct tcf_exts exts; | |
83 | struct tcf_result res; | |
84 | struct fl_flow_key key; | |
85 | struct list_head list; | |
86 | u32 handle; | |
e69985c6 | 87 | u32 flags; |
77b9900e | 88 | struct rcu_head rcu; |
7091d8c7 HHZ |
89 | struct tc_to_netdev tc; |
90 | struct net_device *hw_dev; | |
77b9900e JP |
91 | }; |
92 | ||
93 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) | |
94 | { | |
95 | return mask->range.end - mask->range.start; | |
96 | } | |
97 | ||
98 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
99 | { | |
100 | const u8 *bytes = (const u8 *) &mask->key; | |
101 | size_t size = sizeof(mask->key); | |
102 | size_t i, first = 0, last = size - 1; | |
103 | ||
104 | for (i = 0; i < sizeof(mask->key); i++) { | |
105 | if (bytes[i]) { | |
106 | if (!first && i) | |
107 | first = i; | |
108 | last = i; | |
109 | } | |
110 | } | |
111 | mask->range.start = rounddown(first, sizeof(long)); | |
112 | mask->range.end = roundup(last + 1, sizeof(long)); | |
113 | } | |
114 | ||
115 | static void *fl_key_get_start(struct fl_flow_key *key, | |
116 | const struct fl_flow_mask *mask) | |
117 | { | |
118 | return (u8 *) key + mask->range.start; | |
119 | } | |
120 | ||
121 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
122 | struct fl_flow_mask *mask) | |
123 | { | |
124 | const long *lkey = fl_key_get_start(key, mask); | |
125 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
126 | long *lmkey = fl_key_get_start(mkey, mask); | |
127 | int i; | |
128 | ||
129 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
130 | *lmkey++ = *lkey++ & *lmask++; | |
131 | } | |
132 | ||
133 | static void fl_clear_masked_range(struct fl_flow_key *key, | |
134 | struct fl_flow_mask *mask) | |
135 | { | |
136 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
137 | } | |
138 | ||
a3308d8f PB |
139 | static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head, |
140 | struct fl_flow_key *mkey) | |
141 | { | |
142 | return rhashtable_lookup_fast(&head->ht, | |
143 | fl_key_get_start(mkey, &head->mask), | |
144 | head->ht_params); | |
145 | } | |
146 | ||
77b9900e JP |
147 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
148 | struct tcf_result *res) | |
149 | { | |
150 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
151 | struct cls_fl_filter *f; | |
152 | struct fl_flow_key skb_key; | |
153 | struct fl_flow_key skb_mkey; | |
bc3103f1 | 154 | struct ip_tunnel_info *info; |
77b9900e | 155 | |
e69985c6 AV |
156 | if (!atomic_read(&head->ht.nelems)) |
157 | return -1; | |
158 | ||
77b9900e | 159 | fl_clear_masked_range(&skb_key, &head->mask); |
bc3103f1 AV |
160 | |
161 | info = skb_tunnel_info(skb); | |
162 | if (info) { | |
163 | struct ip_tunnel_key *key = &info->key; | |
164 | ||
165 | switch (ip_tunnel_info_af(info)) { | |
166 | case AF_INET: | |
0df0f207 PB |
167 | skb_key.enc_control.addr_type = |
168 | FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
bc3103f1 AV |
169 | skb_key.enc_ipv4.src = key->u.ipv4.src; |
170 | skb_key.enc_ipv4.dst = key->u.ipv4.dst; | |
171 | break; | |
172 | case AF_INET6: | |
0df0f207 PB |
173 | skb_key.enc_control.addr_type = |
174 | FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
bc3103f1 AV |
175 | skb_key.enc_ipv6.src = key->u.ipv6.src; |
176 | skb_key.enc_ipv6.dst = key->u.ipv6.dst; | |
177 | break; | |
178 | } | |
179 | ||
180 | skb_key.enc_key_id.keyid = tunnel_id_to_key32(key->tun_id); | |
f4d997fd HHZ |
181 | skb_key.enc_tp.src = key->tp_src; |
182 | skb_key.enc_tp.dst = key->tp_dst; | |
bc3103f1 AV |
183 | } |
184 | ||
77b9900e JP |
185 | skb_key.indev_ifindex = skb->skb_iif; |
186 | /* skb_flow_dissect() does not set n_proto in case an unknown protocol, | |
187 | * so do it rather here. | |
188 | */ | |
189 | skb_key.basic.n_proto = skb->protocol; | |
cd79a238 | 190 | skb_flow_dissect(skb, &head->dissector, &skb_key, 0); |
77b9900e JP |
191 | |
192 | fl_set_masked_key(&skb_mkey, &skb_key, &head->mask); | |
193 | ||
a3308d8f | 194 | f = fl_lookup(head, &skb_mkey); |
e8eb36cd | 195 | if (f && !tc_skip_sw(f->flags)) { |
77b9900e JP |
196 | *res = f->res; |
197 | return tcf_exts_exec(skb, &f->exts, res); | |
198 | } | |
199 | return -1; | |
200 | } | |
201 | ||
202 | static int fl_init(struct tcf_proto *tp) | |
203 | { | |
204 | struct cls_fl_head *head; | |
205 | ||
206 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
207 | if (!head) | |
208 | return -ENOBUFS; | |
209 | ||
210 | INIT_LIST_HEAD_RCU(&head->filters); | |
211 | rcu_assign_pointer(tp->root, head); | |
212 | ||
213 | return 0; | |
214 | } | |
215 | ||
216 | static void fl_destroy_filter(struct rcu_head *head) | |
217 | { | |
218 | struct cls_fl_filter *f = container_of(head, struct cls_fl_filter, rcu); | |
219 | ||
220 | tcf_exts_destroy(&f->exts); | |
221 | kfree(f); | |
222 | } | |
223 | ||
3036dab6 | 224 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f) |
5b33f488 | 225 | { |
5b33f488 | 226 | struct tc_cls_flower_offload offload = {0}; |
7091d8c7 HHZ |
227 | struct net_device *dev = f->hw_dev; |
228 | struct tc_to_netdev *tc = &f->tc; | |
5b33f488 | 229 | |
79685219 | 230 | if (!tc_can_offload(dev, tp)) |
5b33f488 AV |
231 | return; |
232 | ||
233 | offload.command = TC_CLSFLOWER_DESTROY; | |
69ca05ce | 234 | offload.prio = tp->prio; |
3036dab6 | 235 | offload.cookie = (unsigned long)f; |
5b33f488 | 236 | |
7091d8c7 HHZ |
237 | tc->type = TC_SETUP_CLSFLOWER; |
238 | tc->cls_flower = &offload; | |
5b33f488 | 239 | |
7091d8c7 | 240 | dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, tc); |
5b33f488 AV |
241 | } |
242 | ||
e8eb36cd AV |
243 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
244 | struct flow_dissector *dissector, | |
245 | struct fl_flow_key *mask, | |
3036dab6 | 246 | struct cls_fl_filter *f) |
5b33f488 AV |
247 | { |
248 | struct net_device *dev = tp->q->dev_queue->dev; | |
249 | struct tc_cls_flower_offload offload = {0}; | |
7091d8c7 | 250 | struct tc_to_netdev *tc = &f->tc; |
e8eb36cd | 251 | int err; |
5b33f488 | 252 | |
7091d8c7 | 253 | if (!tc_can_offload(dev, tp)) { |
a6e16931 HHZ |
254 | if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev) || |
255 | (f->hw_dev && !tc_can_offload(f->hw_dev, tp))) { | |
256 | f->hw_dev = dev; | |
7091d8c7 | 257 | return tc_skip_sw(f->flags) ? -EINVAL : 0; |
a6e16931 | 258 | } |
7091d8c7 HHZ |
259 | dev = f->hw_dev; |
260 | tc->egress_dev = true; | |
261 | } else { | |
262 | f->hw_dev = dev; | |
263 | } | |
5b33f488 AV |
264 | |
265 | offload.command = TC_CLSFLOWER_REPLACE; | |
69ca05ce | 266 | offload.prio = tp->prio; |
3036dab6 | 267 | offload.cookie = (unsigned long)f; |
5b33f488 AV |
268 | offload.dissector = dissector; |
269 | offload.mask = mask; | |
f93bd17b | 270 | offload.key = &f->mkey; |
3036dab6 | 271 | offload.exts = &f->exts; |
5b33f488 | 272 | |
7091d8c7 HHZ |
273 | tc->type = TC_SETUP_CLSFLOWER; |
274 | tc->cls_flower = &offload; | |
5b33f488 | 275 | |
5a7a5555 | 276 | err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, |
7091d8c7 | 277 | tc); |
55593960 OG |
278 | if (!err) |
279 | f->flags |= TCA_CLS_FLAGS_IN_HW; | |
e8eb36cd | 280 | |
3036dab6 | 281 | if (tc_skip_sw(f->flags)) |
e8eb36cd | 282 | return err; |
e8eb36cd | 283 | return 0; |
5b33f488 AV |
284 | } |
285 | ||
10cbc684 AV |
286 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
287 | { | |
10cbc684 | 288 | struct tc_cls_flower_offload offload = {0}; |
7091d8c7 HHZ |
289 | struct net_device *dev = f->hw_dev; |
290 | struct tc_to_netdev *tc = &f->tc; | |
10cbc684 | 291 | |
79685219 | 292 | if (!tc_can_offload(dev, tp)) |
10cbc684 AV |
293 | return; |
294 | ||
295 | offload.command = TC_CLSFLOWER_STATS; | |
69ca05ce | 296 | offload.prio = tp->prio; |
10cbc684 AV |
297 | offload.cookie = (unsigned long)f; |
298 | offload.exts = &f->exts; | |
299 | ||
7091d8c7 HHZ |
300 | tc->type = TC_SETUP_CLSFLOWER; |
301 | tc->cls_flower = &offload; | |
10cbc684 | 302 | |
7091d8c7 | 303 | dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, tc); |
10cbc684 AV |
304 | } |
305 | ||
13fa876e RD |
306 | static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f) |
307 | { | |
308 | list_del_rcu(&f->list); | |
79685219 | 309 | if (!tc_skip_hw(f->flags)) |
3036dab6 | 310 | fl_hw_destroy_filter(tp, f); |
13fa876e RD |
311 | tcf_unbind_filter(tp, &f->res); |
312 | call_rcu(&f->rcu, fl_destroy_filter); | |
313 | } | |
314 | ||
d9363774 DB |
315 | static void fl_destroy_sleepable(struct work_struct *work) |
316 | { | |
317 | struct cls_fl_head *head = container_of(work, struct cls_fl_head, | |
318 | work); | |
319 | if (head->mask_assigned) | |
320 | rhashtable_destroy(&head->ht); | |
321 | kfree(head); | |
322 | module_put(THIS_MODULE); | |
323 | } | |
324 | ||
325 | static void fl_destroy_rcu(struct rcu_head *rcu) | |
326 | { | |
327 | struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu); | |
328 | ||
329 | INIT_WORK(&head->work, fl_destroy_sleepable); | |
330 | schedule_work(&head->work); | |
331 | } | |
332 | ||
763dbf63 | 333 | static void fl_destroy(struct tcf_proto *tp) |
77b9900e JP |
334 | { |
335 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
336 | struct cls_fl_filter *f, *next; | |
337 | ||
13fa876e RD |
338 | list_for_each_entry_safe(f, next, &head->filters, list) |
339 | __fl_delete(tp, f); | |
d9363774 DB |
340 | |
341 | __module_get(THIS_MODULE); | |
342 | call_rcu(&head->rcu, fl_destroy_rcu); | |
77b9900e JP |
343 | } |
344 | ||
345 | static unsigned long fl_get(struct tcf_proto *tp, u32 handle) | |
346 | { | |
347 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
348 | struct cls_fl_filter *f; | |
349 | ||
350 | list_for_each_entry(f, &head->filters, list) | |
351 | if (f->handle == handle) | |
352 | return (unsigned long) f; | |
353 | return 0; | |
354 | } | |
355 | ||
356 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
357 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
358 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
359 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
360 | .len = IFNAMSIZ }, | |
361 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
362 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
363 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
364 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
365 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
366 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
367 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
368 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
369 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
370 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
371 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
372 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
373 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
374 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
375 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
376 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
377 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
378 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
379 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
380 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
381 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
382 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
383 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
384 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
385 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
386 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
387 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
388 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
389 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
390 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
391 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
392 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
393 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
394 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
395 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
396 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
397 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
398 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
399 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
400 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
401 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
402 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
403 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
404 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
405 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
406 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
407 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
408 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
409 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
410 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
411 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
412 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
413 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
414 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
415 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
416 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
417 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
418 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
419 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
420 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
421 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
422 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
423 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
424 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
425 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
426 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
77b9900e JP |
427 | }; |
428 | ||
429 | static void fl_set_key_val(struct nlattr **tb, | |
430 | void *val, int val_type, | |
431 | void *mask, int mask_type, int len) | |
432 | { | |
433 | if (!tb[val_type]) | |
434 | return; | |
435 | memcpy(val, nla_data(tb[val_type]), len); | |
436 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
437 | memset(mask, 0xff, len); | |
438 | else | |
439 | memcpy(mask, nla_data(tb[mask_type]), len); | |
440 | } | |
441 | ||
1a7fca63 BL |
442 | static int fl_set_key_mpls(struct nlattr **tb, |
443 | struct flow_dissector_key_mpls *key_val, | |
444 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
445 | { |
446 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
447 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
448 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
449 | } | |
450 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
451 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
452 | ||
453 | if (bos & ~MPLS_BOS_MASK) | |
454 | return -EINVAL; | |
455 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
456 | key_mask->mpls_bos = MPLS_BOS_MASK; |
457 | } | |
458 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
459 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
460 | ||
461 | if (tc & ~MPLS_TC_MASK) | |
462 | return -EINVAL; | |
463 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
464 | key_mask->mpls_tc = MPLS_TC_MASK; |
465 | } | |
466 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
467 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
468 | ||
469 | if (label & ~MPLS_LABEL_MASK) | |
470 | return -EINVAL; | |
471 | key_val->mpls_label = label; | |
a577d8f7 BL |
472 | key_mask->mpls_label = MPLS_LABEL_MASK; |
473 | } | |
1a7fca63 | 474 | return 0; |
a577d8f7 BL |
475 | } |
476 | ||
9399ae9a HHZ |
477 | static void fl_set_key_vlan(struct nlattr **tb, |
478 | struct flow_dissector_key_vlan *key_val, | |
479 | struct flow_dissector_key_vlan *key_mask) | |
480 | { | |
481 | #define VLAN_PRIORITY_MASK 0x7 | |
482 | ||
483 | if (tb[TCA_FLOWER_KEY_VLAN_ID]) { | |
484 | key_val->vlan_id = | |
485 | nla_get_u16(tb[TCA_FLOWER_KEY_VLAN_ID]) & VLAN_VID_MASK; | |
486 | key_mask->vlan_id = VLAN_VID_MASK; | |
487 | } | |
488 | if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) { | |
489 | key_val->vlan_priority = | |
490 | nla_get_u8(tb[TCA_FLOWER_KEY_VLAN_PRIO]) & | |
491 | VLAN_PRIORITY_MASK; | |
492 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
493 | } | |
494 | } | |
495 | ||
faa3ffce OG |
496 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
497 | u32 *dissector_key, u32 *dissector_mask, | |
498 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
499 | { | |
500 | if (flower_mask & flower_flag_bit) { | |
501 | *dissector_mask |= dissector_flag_bit; | |
502 | if (flower_key & flower_flag_bit) | |
503 | *dissector_key |= dissector_flag_bit; | |
504 | } | |
505 | } | |
506 | ||
d9724772 OG |
507 | static int fl_set_key_flags(struct nlattr **tb, |
508 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
509 | { |
510 | u32 key, mask; | |
511 | ||
d9724772 OG |
512 | /* mask is mandatory for flags */ |
513 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
514 | return -EINVAL; | |
faa3ffce OG |
515 | |
516 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 517 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
518 | |
519 | *flags_key = 0; | |
520 | *flags_mask = 0; | |
521 | ||
522 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
523 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
d9724772 OG |
524 | |
525 | return 0; | |
faa3ffce OG |
526 | } |
527 | ||
77b9900e JP |
528 | static int fl_set_key(struct net *net, struct nlattr **tb, |
529 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
530 | { | |
9399ae9a | 531 | __be16 ethertype; |
d9724772 | 532 | int ret = 0; |
dd3aa3b5 | 533 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 534 | if (tb[TCA_FLOWER_INDEV]) { |
dd3aa3b5 | 535 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); |
77b9900e JP |
536 | if (err < 0) |
537 | return err; | |
538 | key->indev_ifindex = err; | |
539 | mask->indev_ifindex = 0xffffffff; | |
540 | } | |
dd3aa3b5 | 541 | #endif |
77b9900e JP |
542 | |
543 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
544 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
545 | sizeof(key->eth.dst)); | |
546 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
547 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
548 | sizeof(key->eth.src)); | |
66530bdf | 549 | |
0b498a52 | 550 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
551 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
552 | ||
0b498a52 AB |
553 | if (ethertype == htons(ETH_P_8021Q)) { |
554 | fl_set_key_vlan(tb, &key->vlan, &mask->vlan); | |
555 | fl_set_key_val(tb, &key->basic.n_proto, | |
556 | TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
557 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
558 | sizeof(key->basic.n_proto)); | |
559 | } else { | |
560 | key->basic.n_proto = ethertype; | |
561 | mask->basic.n_proto = cpu_to_be16(~0); | |
562 | } | |
9399ae9a | 563 | } |
66530bdf | 564 | |
77b9900e JP |
565 | if (key->basic.n_proto == htons(ETH_P_IP) || |
566 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
567 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
568 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
569 | sizeof(key->basic.ip_proto)); | |
570 | } | |
66530bdf JHS |
571 | |
572 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
573 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 574 | mask->control.addr_type = ~0; |
77b9900e JP |
575 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
576 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
577 | sizeof(key->ipv4.src)); | |
578 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
579 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
580 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
581 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
582 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 583 | mask->control.addr_type = ~0; |
77b9900e JP |
584 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
585 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
586 | sizeof(key->ipv6.src)); | |
587 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
588 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
589 | sizeof(key->ipv6.dst)); | |
590 | } | |
66530bdf | 591 | |
77b9900e JP |
592 | if (key->basic.ip_proto == IPPROTO_TCP) { |
593 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 594 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
595 | sizeof(key->tp.src)); |
596 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 597 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e JP |
598 | sizeof(key->tp.dst)); |
599 | } else if (key->basic.ip_proto == IPPROTO_UDP) { | |
600 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 601 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
602 | sizeof(key->tp.src)); |
603 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 604 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 605 | sizeof(key->tp.dst)); |
5976c5f4 SH |
606 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
607 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
608 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
609 | sizeof(key->tp.src)); | |
610 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
611 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
612 | sizeof(key->tp.dst)); | |
7b684884 SH |
613 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
614 | key->basic.ip_proto == IPPROTO_ICMP) { | |
615 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
616 | &mask->icmp.type, | |
617 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
618 | sizeof(key->icmp.type)); | |
619 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
620 | &mask->icmp.code, | |
621 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
622 | sizeof(key->icmp.code)); | |
623 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
624 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
625 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
626 | &mask->icmp.type, | |
627 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
628 | sizeof(key->icmp.type)); | |
040587af | 629 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 630 | &mask->icmp.code, |
040587af | 631 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 632 | sizeof(key->icmp.code)); |
a577d8f7 BL |
633 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
634 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
635 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
636 | if (ret) | |
637 | return ret; | |
99d31326 SH |
638 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
639 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
640 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
641 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
642 | sizeof(key->arp.sip)); | |
643 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
644 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
645 | sizeof(key->arp.tip)); | |
646 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
647 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
648 | sizeof(key->arp.op)); | |
649 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
650 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
651 | sizeof(key->arp.sha)); | |
652 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
653 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
654 | sizeof(key->arp.tha)); | |
77b9900e JP |
655 | } |
656 | ||
bc3103f1 AV |
657 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
658 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
659 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 660 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
661 | fl_set_key_val(tb, &key->enc_ipv4.src, |
662 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
663 | &mask->enc_ipv4.src, | |
664 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
665 | sizeof(key->enc_ipv4.src)); | |
666 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
667 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
668 | &mask->enc_ipv4.dst, | |
669 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
670 | sizeof(key->enc_ipv4.dst)); | |
671 | } | |
672 | ||
673 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
674 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
675 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 676 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
677 | fl_set_key_val(tb, &key->enc_ipv6.src, |
678 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
679 | &mask->enc_ipv6.src, | |
680 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
681 | sizeof(key->enc_ipv6.src)); | |
682 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
683 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
684 | &mask->enc_ipv6.dst, | |
685 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
686 | sizeof(key->enc_ipv6.dst)); | |
687 | } | |
688 | ||
689 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 690 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
691 | sizeof(key->enc_key_id.keyid)); |
692 | ||
f4d997fd HHZ |
693 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
694 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
695 | sizeof(key->enc_tp.src)); | |
696 | ||
697 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
698 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
699 | sizeof(key->enc_tp.dst)); | |
700 | ||
d9724772 OG |
701 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
702 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 703 | |
d9724772 | 704 | return ret; |
77b9900e JP |
705 | } |
706 | ||
707 | static bool fl_mask_eq(struct fl_flow_mask *mask1, | |
708 | struct fl_flow_mask *mask2) | |
709 | { | |
710 | const long *lmask1 = fl_key_get_start(&mask1->key, mask1); | |
711 | const long *lmask2 = fl_key_get_start(&mask2->key, mask2); | |
712 | ||
713 | return !memcmp(&mask1->range, &mask2->range, sizeof(mask1->range)) && | |
714 | !memcmp(lmask1, lmask2, fl_mask_range(mask1)); | |
715 | } | |
716 | ||
717 | static const struct rhashtable_params fl_ht_params = { | |
718 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
719 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
720 | .automatic_shrinking = true, | |
721 | }; | |
722 | ||
723 | static int fl_init_hashtable(struct cls_fl_head *head, | |
724 | struct fl_flow_mask *mask) | |
725 | { | |
726 | head->ht_params = fl_ht_params; | |
727 | head->ht_params.key_len = fl_mask_range(mask); | |
728 | head->ht_params.key_offset += mask->range.start; | |
729 | ||
730 | return rhashtable_init(&head->ht, &head->ht_params); | |
731 | } | |
732 | ||
733 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
734 | #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member)) | |
77b9900e | 735 | |
339ba878 HHZ |
736 | #define FL_KEY_IS_MASKED(mask, member) \ |
737 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
738 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
739 | |
740 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
741 | do { \ | |
742 | keys[cnt].key_id = id; \ | |
743 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
744 | cnt++; \ | |
745 | } while(0); | |
746 | ||
339ba878 | 747 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 748 | do { \ |
339ba878 | 749 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
750 | FL_KEY_SET(keys, cnt, id, member); \ |
751 | } while(0); | |
752 | ||
753 | static void fl_init_dissector(struct cls_fl_head *head, | |
754 | struct fl_flow_mask *mask) | |
755 | { | |
756 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
757 | size_t cnt = 0; | |
758 | ||
42aecaa9 | 759 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 760 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
339ba878 HHZ |
761 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
762 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); | |
763 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
764 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); | |
765 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
766 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); | |
767 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
768 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
7b684884 SH |
769 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
770 | FLOW_DISSECTOR_KEY_ICMP, icmp); | |
99d31326 SH |
771 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
772 | FLOW_DISSECTOR_KEY_ARP, arp); | |
a577d8f7 BL |
773 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
774 | FLOW_DISSECTOR_KEY_MPLS, mpls); | |
9399ae9a HHZ |
775 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
776 | FLOW_DISSECTOR_KEY_VLAN, vlan); | |
519d1052 HHZ |
777 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
778 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); | |
779 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
780 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); | |
781 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
782 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); | |
783 | if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) || | |
784 | FL_KEY_IS_MASKED(&mask->key, enc_ipv6)) | |
785 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
786 | enc_control); | |
f4d997fd HHZ |
787 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
788 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); | |
77b9900e JP |
789 | |
790 | skb_flow_dissector_init(&head->dissector, keys, cnt); | |
791 | } | |
792 | ||
793 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
794 | struct fl_flow_mask *mask) | |
795 | { | |
796 | int err; | |
797 | ||
798 | if (head->mask_assigned) { | |
799 | if (!fl_mask_eq(&head->mask, mask)) | |
800 | return -EINVAL; | |
801 | else | |
802 | return 0; | |
803 | } | |
804 | ||
805 | /* Mask is not assigned yet. So assign it and init hashtable | |
806 | * according to that. | |
807 | */ | |
808 | err = fl_init_hashtable(head, mask); | |
809 | if (err) | |
810 | return err; | |
811 | memcpy(&head->mask, mask, sizeof(head->mask)); | |
812 | head->mask_assigned = true; | |
813 | ||
814 | fl_init_dissector(head, mask); | |
815 | ||
816 | return 0; | |
817 | } | |
818 | ||
819 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
820 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
821 | unsigned long base, struct nlattr **tb, | |
822 | struct nlattr *est, bool ovr) | |
823 | { | |
824 | struct tcf_exts e; | |
825 | int err; | |
826 | ||
b9a24bb7 | 827 | err = tcf_exts_init(&e, TCA_FLOWER_ACT, 0); |
77b9900e JP |
828 | if (err < 0) |
829 | return err; | |
b9a24bb7 WC |
830 | err = tcf_exts_validate(net, tp, tb, est, &e, ovr); |
831 | if (err < 0) | |
832 | goto errout; | |
77b9900e JP |
833 | |
834 | if (tb[TCA_FLOWER_CLASSID]) { | |
835 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
836 | tcf_bind_filter(tp, &f->res, base); | |
837 | } | |
838 | ||
839 | err = fl_set_key(net, tb, &f->key, &mask->key); | |
840 | if (err) | |
841 | goto errout; | |
842 | ||
843 | fl_mask_update_range(mask); | |
844 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
845 | ||
846 | tcf_exts_change(tp, &f->exts, &e); | |
847 | ||
848 | return 0; | |
849 | errout: | |
850 | tcf_exts_destroy(&e); | |
851 | return err; | |
852 | } | |
853 | ||
854 | static u32 fl_grab_new_handle(struct tcf_proto *tp, | |
855 | struct cls_fl_head *head) | |
856 | { | |
857 | unsigned int i = 0x80000000; | |
858 | u32 handle; | |
859 | ||
860 | do { | |
861 | if (++head->hgen == 0x7FFFFFFF) | |
862 | head->hgen = 1; | |
863 | } while (--i > 0 && fl_get(tp, head->hgen)); | |
864 | ||
865 | if (unlikely(i == 0)) { | |
866 | pr_err("Insufficient number of handles\n"); | |
867 | handle = 0; | |
868 | } else { | |
869 | handle = head->hgen; | |
870 | } | |
871 | ||
872 | return handle; | |
873 | } | |
874 | ||
875 | static int fl_change(struct net *net, struct sk_buff *in_skb, | |
876 | struct tcf_proto *tp, unsigned long base, | |
877 | u32 handle, struct nlattr **tca, | |
878 | unsigned long *arg, bool ovr) | |
879 | { | |
880 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
881 | struct cls_fl_filter *fold = (struct cls_fl_filter *) *arg; | |
882 | struct cls_fl_filter *fnew; | |
39b7b6a6 | 883 | struct nlattr **tb; |
77b9900e JP |
884 | struct fl_flow_mask mask = {}; |
885 | int err; | |
886 | ||
887 | if (!tca[TCA_OPTIONS]) | |
888 | return -EINVAL; | |
889 | ||
39b7b6a6 AB |
890 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
891 | if (!tb) | |
892 | return -ENOBUFS; | |
893 | ||
fceb6435 JB |
894 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
895 | fl_policy, NULL); | |
77b9900e | 896 | if (err < 0) |
39b7b6a6 | 897 | goto errout_tb; |
77b9900e | 898 | |
39b7b6a6 AB |
899 | if (fold && handle && fold->handle != handle) { |
900 | err = -EINVAL; | |
901 | goto errout_tb; | |
902 | } | |
77b9900e JP |
903 | |
904 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
905 | if (!fnew) { |
906 | err = -ENOBUFS; | |
907 | goto errout_tb; | |
908 | } | |
77b9900e | 909 | |
b9a24bb7 WC |
910 | err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0); |
911 | if (err < 0) | |
912 | goto errout; | |
77b9900e JP |
913 | |
914 | if (!handle) { | |
915 | handle = fl_grab_new_handle(tp, head); | |
916 | if (!handle) { | |
917 | err = -EINVAL; | |
918 | goto errout; | |
919 | } | |
920 | } | |
921 | fnew->handle = handle; | |
922 | ||
e69985c6 AV |
923 | if (tb[TCA_FLOWER_FLAGS]) { |
924 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
925 | ||
926 | if (!tc_flags_valid(fnew->flags)) { | |
927 | err = -EINVAL; | |
928 | goto errout; | |
929 | } | |
930 | } | |
5b33f488 | 931 | |
77b9900e JP |
932 | err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr); |
933 | if (err) | |
934 | goto errout; | |
935 | ||
936 | err = fl_check_assign_mask(head, &mask); | |
937 | if (err) | |
938 | goto errout; | |
939 | ||
e8eb36cd | 940 | if (!tc_skip_sw(fnew->flags)) { |
a3308d8f PB |
941 | if (!fold && fl_lookup(head, &fnew->mkey)) { |
942 | err = -EEXIST; | |
943 | goto errout; | |
944 | } | |
945 | ||
e69985c6 AV |
946 | err = rhashtable_insert_fast(&head->ht, &fnew->ht_node, |
947 | head->ht_params); | |
948 | if (err) | |
949 | goto errout; | |
950 | } | |
5b33f488 | 951 | |
79685219 HHZ |
952 | if (!tc_skip_hw(fnew->flags)) { |
953 | err = fl_hw_replace_filter(tp, | |
954 | &head->dissector, | |
955 | &mask.key, | |
3036dab6 | 956 | fnew); |
79685219 HHZ |
957 | if (err) |
958 | goto errout; | |
959 | } | |
5b33f488 | 960 | |
55593960 OG |
961 | if (!tc_in_hw(fnew->flags)) |
962 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
963 | ||
5b33f488 | 964 | if (fold) { |
725cbb62 JP |
965 | if (!tc_skip_sw(fold->flags)) |
966 | rhashtable_remove_fast(&head->ht, &fold->ht_node, | |
967 | head->ht_params); | |
79685219 | 968 | if (!tc_skip_hw(fold->flags)) |
3036dab6 | 969 | fl_hw_destroy_filter(tp, fold); |
5b33f488 | 970 | } |
77b9900e JP |
971 | |
972 | *arg = (unsigned long) fnew; | |
973 | ||
974 | if (fold) { | |
ff3532f2 | 975 | list_replace_rcu(&fold->list, &fnew->list); |
77b9900e JP |
976 | tcf_unbind_filter(tp, &fold->res); |
977 | call_rcu(&fold->rcu, fl_destroy_filter); | |
978 | } else { | |
979 | list_add_tail_rcu(&fnew->list, &head->filters); | |
980 | } | |
981 | ||
39b7b6a6 | 982 | kfree(tb); |
77b9900e JP |
983 | return 0; |
984 | ||
985 | errout: | |
b9a24bb7 | 986 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 987 | kfree(fnew); |
39b7b6a6 AB |
988 | errout_tb: |
989 | kfree(tb); | |
77b9900e JP |
990 | return err; |
991 | } | |
992 | ||
763dbf63 | 993 | static int fl_delete(struct tcf_proto *tp, unsigned long arg, bool *last) |
77b9900e JP |
994 | { |
995 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
996 | struct cls_fl_filter *f = (struct cls_fl_filter *) arg; | |
997 | ||
725cbb62 JP |
998 | if (!tc_skip_sw(f->flags)) |
999 | rhashtable_remove_fast(&head->ht, &f->ht_node, | |
1000 | head->ht_params); | |
13fa876e | 1001 | __fl_delete(tp, f); |
763dbf63 | 1002 | *last = list_empty(&head->filters); |
77b9900e JP |
1003 | return 0; |
1004 | } | |
1005 | ||
1006 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg) | |
1007 | { | |
1008 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1009 | struct cls_fl_filter *f; | |
1010 | ||
1011 | list_for_each_entry_rcu(f, &head->filters, list) { | |
1012 | if (arg->count < arg->skip) | |
1013 | goto skip; | |
1014 | if (arg->fn(tp, (unsigned long) f, arg) < 0) { | |
1015 | arg->stop = 1; | |
1016 | break; | |
1017 | } | |
1018 | skip: | |
1019 | arg->count++; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | static int fl_dump_key_val(struct sk_buff *skb, | |
1024 | void *val, int val_type, | |
1025 | void *mask, int mask_type, int len) | |
1026 | { | |
1027 | int err; | |
1028 | ||
1029 | if (!memchr_inv(mask, 0, len)) | |
1030 | return 0; | |
1031 | err = nla_put(skb, val_type, len, val); | |
1032 | if (err) | |
1033 | return err; | |
1034 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1035 | err = nla_put(skb, mask_type, len, mask); | |
1036 | if (err) | |
1037 | return err; | |
1038 | } | |
1039 | return 0; | |
1040 | } | |
1041 | ||
a577d8f7 BL |
1042 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1043 | struct flow_dissector_key_mpls *mpls_key, | |
1044 | struct flow_dissector_key_mpls *mpls_mask) | |
1045 | { | |
1046 | int err; | |
1047 | ||
1048 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1049 | return 0; | |
1050 | if (mpls_mask->mpls_ttl) { | |
1051 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1052 | mpls_key->mpls_ttl); | |
1053 | if (err) | |
1054 | return err; | |
1055 | } | |
1056 | if (mpls_mask->mpls_tc) { | |
1057 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1058 | mpls_key->mpls_tc); | |
1059 | if (err) | |
1060 | return err; | |
1061 | } | |
1062 | if (mpls_mask->mpls_label) { | |
1063 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1064 | mpls_key->mpls_label); | |
1065 | if (err) | |
1066 | return err; | |
1067 | } | |
1068 | if (mpls_mask->mpls_bos) { | |
1069 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1070 | mpls_key->mpls_bos); | |
1071 | if (err) | |
1072 | return err; | |
1073 | } | |
1074 | return 0; | |
1075 | } | |
1076 | ||
9399ae9a HHZ |
1077 | static int fl_dump_key_vlan(struct sk_buff *skb, |
1078 | struct flow_dissector_key_vlan *vlan_key, | |
1079 | struct flow_dissector_key_vlan *vlan_mask) | |
1080 | { | |
1081 | int err; | |
1082 | ||
1083 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1084 | return 0; | |
1085 | if (vlan_mask->vlan_id) { | |
1086 | err = nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ID, | |
1087 | vlan_key->vlan_id); | |
1088 | if (err) | |
1089 | return err; | |
1090 | } | |
1091 | if (vlan_mask->vlan_priority) { | |
1092 | err = nla_put_u8(skb, TCA_FLOWER_KEY_VLAN_PRIO, | |
1093 | vlan_key->vlan_priority); | |
1094 | if (err) | |
1095 | return err; | |
1096 | } | |
1097 | return 0; | |
1098 | } | |
1099 | ||
faa3ffce OG |
1100 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1101 | u32 *flower_key, u32 *flower_mask, | |
1102 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1103 | { | |
1104 | if (dissector_mask & dissector_flag_bit) { | |
1105 | *flower_mask |= flower_flag_bit; | |
1106 | if (dissector_key & dissector_flag_bit) | |
1107 | *flower_key |= flower_flag_bit; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1112 | { | |
1113 | u32 key, mask; | |
1114 | __be32 _key, _mask; | |
1115 | int err; | |
1116 | ||
1117 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1118 | return 0; | |
1119 | ||
1120 | key = 0; | |
1121 | mask = 0; | |
1122 | ||
1123 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1124 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
1125 | ||
1126 | _key = cpu_to_be32(key); | |
1127 | _mask = cpu_to_be32(mask); | |
1128 | ||
1129 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1130 | if (err) | |
1131 | return err; | |
1132 | ||
1133 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1134 | } | |
1135 | ||
77b9900e JP |
1136 | static int fl_dump(struct net *net, struct tcf_proto *tp, unsigned long fh, |
1137 | struct sk_buff *skb, struct tcmsg *t) | |
1138 | { | |
1139 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1140 | struct cls_fl_filter *f = (struct cls_fl_filter *) fh; | |
1141 | struct nlattr *nest; | |
1142 | struct fl_flow_key *key, *mask; | |
1143 | ||
1144 | if (!f) | |
1145 | return skb->len; | |
1146 | ||
1147 | t->tcm_handle = f->handle; | |
1148 | ||
1149 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
1150 | if (!nest) | |
1151 | goto nla_put_failure; | |
1152 | ||
1153 | if (f->res.classid && | |
1154 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
1155 | goto nla_put_failure; | |
1156 | ||
1157 | key = &f->key; | |
1158 | mask = &head->mask.key; | |
1159 | ||
1160 | if (mask->indev_ifindex) { | |
1161 | struct net_device *dev; | |
1162 | ||
1163 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1164 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1165 | goto nla_put_failure; | |
1166 | } | |
1167 | ||
79685219 HHZ |
1168 | if (!tc_skip_hw(f->flags)) |
1169 | fl_hw_update_stats(tp, f); | |
10cbc684 | 1170 | |
77b9900e JP |
1171 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, |
1172 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1173 | sizeof(key->eth.dst)) || | |
1174 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1175 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1176 | sizeof(key->eth.src)) || | |
1177 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1178 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1179 | sizeof(key->basic.n_proto))) | |
1180 | goto nla_put_failure; | |
9399ae9a | 1181 | |
a577d8f7 BL |
1182 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1183 | goto nla_put_failure; | |
1184 | ||
9399ae9a HHZ |
1185 | if (fl_dump_key_vlan(skb, &key->vlan, &mask->vlan)) |
1186 | goto nla_put_failure; | |
1187 | ||
77b9900e JP |
1188 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
1189 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
1190 | fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
1191 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
1192 | sizeof(key->basic.ip_proto))) | |
1193 | goto nla_put_failure; | |
1194 | ||
c3f83241 | 1195 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
1196 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1197 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1198 | sizeof(key->ipv4.src)) || | |
1199 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1200 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1201 | sizeof(key->ipv4.dst)))) | |
1202 | goto nla_put_failure; | |
c3f83241 | 1203 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
1204 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1205 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1206 | sizeof(key->ipv6.src)) || | |
1207 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1208 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1209 | sizeof(key->ipv6.dst)))) | |
1210 | goto nla_put_failure; | |
1211 | ||
1212 | if (key->basic.ip_proto == IPPROTO_TCP && | |
1213 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1214 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1215 | sizeof(key->tp.src)) || |
1216 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1217 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e JP |
1218 | sizeof(key->tp.dst)))) |
1219 | goto nla_put_failure; | |
1220 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
1221 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1222 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1223 | sizeof(key->tp.src)) || |
1224 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1225 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
1226 | sizeof(key->tp.dst)))) |
1227 | goto nla_put_failure; | |
1228 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
1229 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1230 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1231 | sizeof(key->tp.src)) || | |
1232 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1233 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
1234 | sizeof(key->tp.dst)))) |
1235 | goto nla_put_failure; | |
7b684884 SH |
1236 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
1237 | key->basic.ip_proto == IPPROTO_ICMP && | |
1238 | (fl_dump_key_val(skb, &key->icmp.type, | |
1239 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
1240 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1241 | sizeof(key->icmp.type)) || | |
1242 | fl_dump_key_val(skb, &key->icmp.code, | |
1243 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
1244 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1245 | sizeof(key->icmp.code)))) | |
1246 | goto nla_put_failure; | |
1247 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1248 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
1249 | (fl_dump_key_val(skb, &key->icmp.type, | |
1250 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
1251 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1252 | sizeof(key->icmp.type)) || | |
1253 | fl_dump_key_val(skb, &key->icmp.code, | |
1254 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
1255 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
1256 | sizeof(key->icmp.code)))) | |
1257 | goto nla_put_failure; | |
99d31326 SH |
1258 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
1259 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
1260 | (fl_dump_key_val(skb, &key->arp.sip, | |
1261 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
1262 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1263 | sizeof(key->arp.sip)) || | |
1264 | fl_dump_key_val(skb, &key->arp.tip, | |
1265 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
1266 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1267 | sizeof(key->arp.tip)) || | |
1268 | fl_dump_key_val(skb, &key->arp.op, | |
1269 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
1270 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
1271 | sizeof(key->arp.op)) || | |
1272 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1273 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1274 | sizeof(key->arp.sha)) || | |
1275 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1276 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1277 | sizeof(key->arp.tha)))) | |
1278 | goto nla_put_failure; | |
77b9900e | 1279 | |
bc3103f1 AV |
1280 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
1281 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
1282 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
1283 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1284 | sizeof(key->enc_ipv4.src)) || | |
1285 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
1286 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
1287 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1288 | sizeof(key->enc_ipv4.dst)))) | |
1289 | goto nla_put_failure; | |
1290 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
1291 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
1292 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
1293 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1294 | sizeof(key->enc_ipv6.src)) || | |
1295 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
1296 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1297 | &mask->enc_ipv6.dst, | |
1298 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1299 | sizeof(key->enc_ipv6.dst)))) | |
1300 | goto nla_put_failure; | |
1301 | ||
1302 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1303 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
1304 | sizeof(key->enc_key_id)) || |
1305 | fl_dump_key_val(skb, &key->enc_tp.src, | |
1306 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
1307 | &mask->enc_tp.src, | |
1308 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1309 | sizeof(key->enc_tp.src)) || | |
1310 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
1311 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1312 | &mask->enc_tp.dst, | |
1313 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1314 | sizeof(key->enc_tp.dst))) | |
bc3103f1 AV |
1315 | goto nla_put_failure; |
1316 | ||
faa3ffce OG |
1317 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
1318 | goto nla_put_failure; | |
1319 | ||
749e6720 OG |
1320 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
1321 | goto nla_put_failure; | |
e69985c6 | 1322 | |
77b9900e JP |
1323 | if (tcf_exts_dump(skb, &f->exts)) |
1324 | goto nla_put_failure; | |
1325 | ||
1326 | nla_nest_end(skb, nest); | |
1327 | ||
1328 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
1329 | goto nla_put_failure; | |
1330 | ||
1331 | return skb->len; | |
1332 | ||
1333 | nla_put_failure: | |
1334 | nla_nest_cancel(skb, nest); | |
1335 | return -1; | |
1336 | } | |
1337 | ||
1338 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { | |
1339 | .kind = "flower", | |
1340 | .classify = fl_classify, | |
1341 | .init = fl_init, | |
1342 | .destroy = fl_destroy, | |
1343 | .get = fl_get, | |
1344 | .change = fl_change, | |
1345 | .delete = fl_delete, | |
1346 | .walk = fl_walk, | |
1347 | .dump = fl_dump, | |
1348 | .owner = THIS_MODULE, | |
1349 | }; | |
1350 | ||
1351 | static int __init cls_fl_init(void) | |
1352 | { | |
1353 | return register_tcf_proto_ops(&cls_fl_ops); | |
1354 | } | |
1355 | ||
1356 | static void __exit cls_fl_exit(void) | |
1357 | { | |
1358 | unregister_tcf_proto_ops(&cls_fl_ops); | |
1359 | } | |
1360 | ||
1361 | module_init(cls_fl_init); | |
1362 | module_exit(cls_fl_exit); | |
1363 | ||
1364 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
1365 | MODULE_DESCRIPTION("Flower classifier"); | |
1366 | MODULE_LICENSE("GPL v2"); |