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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; |
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; |
77b9900e | 90 | struct rcu_head rcu; |
7091d8c7 | 91 | struct net_device *hw_dev; |
77b9900e JP |
92 | }; |
93 | ||
94 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) | |
95 | { | |
96 | return mask->range.end - mask->range.start; | |
97 | } | |
98 | ||
99 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
100 | { | |
101 | const u8 *bytes = (const u8 *) &mask->key; | |
102 | size_t size = sizeof(mask->key); | |
103 | size_t i, first = 0, last = size - 1; | |
104 | ||
105 | for (i = 0; i < sizeof(mask->key); i++) { | |
106 | if (bytes[i]) { | |
107 | if (!first && i) | |
108 | first = i; | |
109 | last = i; | |
110 | } | |
111 | } | |
112 | mask->range.start = rounddown(first, sizeof(long)); | |
113 | mask->range.end = roundup(last + 1, sizeof(long)); | |
114 | } | |
115 | ||
116 | static void *fl_key_get_start(struct fl_flow_key *key, | |
117 | const struct fl_flow_mask *mask) | |
118 | { | |
119 | return (u8 *) key + mask->range.start; | |
120 | } | |
121 | ||
122 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
123 | struct fl_flow_mask *mask) | |
124 | { | |
125 | const long *lkey = fl_key_get_start(key, mask); | |
126 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
127 | long *lmkey = fl_key_get_start(mkey, mask); | |
128 | int i; | |
129 | ||
130 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
131 | *lmkey++ = *lkey++ & *lmask++; | |
132 | } | |
133 | ||
134 | static void fl_clear_masked_range(struct fl_flow_key *key, | |
135 | struct fl_flow_mask *mask) | |
136 | { | |
137 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
138 | } | |
139 | ||
a3308d8f PB |
140 | static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head, |
141 | struct fl_flow_key *mkey) | |
142 | { | |
143 | return rhashtable_lookup_fast(&head->ht, | |
144 | fl_key_get_start(mkey, &head->mask), | |
145 | head->ht_params); | |
146 | } | |
147 | ||
77b9900e JP |
148 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
149 | struct tcf_result *res) | |
150 | { | |
151 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
152 | struct cls_fl_filter *f; | |
153 | struct fl_flow_key skb_key; | |
154 | struct fl_flow_key skb_mkey; | |
bc3103f1 | 155 | struct ip_tunnel_info *info; |
77b9900e | 156 | |
e69985c6 AV |
157 | if (!atomic_read(&head->ht.nelems)) |
158 | return -1; | |
159 | ||
77b9900e | 160 | fl_clear_masked_range(&skb_key, &head->mask); |
bc3103f1 AV |
161 | |
162 | info = skb_tunnel_info(skb); | |
163 | if (info) { | |
164 | struct ip_tunnel_key *key = &info->key; | |
165 | ||
166 | switch (ip_tunnel_info_af(info)) { | |
167 | case AF_INET: | |
0df0f207 PB |
168 | skb_key.enc_control.addr_type = |
169 | FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
bc3103f1 AV |
170 | skb_key.enc_ipv4.src = key->u.ipv4.src; |
171 | skb_key.enc_ipv4.dst = key->u.ipv4.dst; | |
172 | break; | |
173 | case AF_INET6: | |
0df0f207 PB |
174 | skb_key.enc_control.addr_type = |
175 | FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
bc3103f1 AV |
176 | skb_key.enc_ipv6.src = key->u.ipv6.src; |
177 | skb_key.enc_ipv6.dst = key->u.ipv6.dst; | |
178 | break; | |
179 | } | |
180 | ||
181 | skb_key.enc_key_id.keyid = tunnel_id_to_key32(key->tun_id); | |
f4d997fd HHZ |
182 | skb_key.enc_tp.src = key->tp_src; |
183 | skb_key.enc_tp.dst = key->tp_dst; | |
bc3103f1 AV |
184 | } |
185 | ||
77b9900e JP |
186 | skb_key.indev_ifindex = skb->skb_iif; |
187 | /* skb_flow_dissect() does not set n_proto in case an unknown protocol, | |
188 | * so do it rather here. | |
189 | */ | |
190 | skb_key.basic.n_proto = skb->protocol; | |
cd79a238 | 191 | skb_flow_dissect(skb, &head->dissector, &skb_key, 0); |
77b9900e JP |
192 | |
193 | fl_set_masked_key(&skb_mkey, &skb_key, &head->mask); | |
194 | ||
a3308d8f | 195 | f = fl_lookup(head, &skb_mkey); |
e8eb36cd | 196 | if (f && !tc_skip_sw(f->flags)) { |
77b9900e JP |
197 | *res = f->res; |
198 | return tcf_exts_exec(skb, &f->exts, res); | |
199 | } | |
200 | return -1; | |
201 | } | |
202 | ||
203 | static int fl_init(struct tcf_proto *tp) | |
204 | { | |
205 | struct cls_fl_head *head; | |
206 | ||
207 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
208 | if (!head) | |
209 | return -ENOBUFS; | |
210 | ||
211 | INIT_LIST_HEAD_RCU(&head->filters); | |
212 | rcu_assign_pointer(tp->root, head); | |
c15ab236 | 213 | idr_init(&head->handle_idr); |
77b9900e JP |
214 | |
215 | return 0; | |
216 | } | |
217 | ||
218 | static void fl_destroy_filter(struct rcu_head *head) | |
219 | { | |
220 | struct cls_fl_filter *f = container_of(head, struct cls_fl_filter, rcu); | |
221 | ||
222 | tcf_exts_destroy(&f->exts); | |
223 | kfree(f); | |
224 | } | |
225 | ||
3036dab6 | 226 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f) |
5b33f488 | 227 | { |
de4784ca | 228 | struct tc_cls_flower_offload cls_flower = {}; |
7091d8c7 | 229 | struct net_device *dev = f->hw_dev; |
5b33f488 | 230 | |
7b06e8ae | 231 | if (!tc_can_offload(dev)) |
5b33f488 AV |
232 | return; |
233 | ||
de4784ca JP |
234 | tc_cls_common_offload_init(&cls_flower.common, tp); |
235 | cls_flower.command = TC_CLSFLOWER_DESTROY; | |
236 | cls_flower.cookie = (unsigned long) f; | |
5b33f488 | 237 | |
de4784ca | 238 | dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, &cls_flower); |
5b33f488 AV |
239 | } |
240 | ||
e8eb36cd AV |
241 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
242 | struct flow_dissector *dissector, | |
243 | struct fl_flow_key *mask, | |
3036dab6 | 244 | struct cls_fl_filter *f) |
5b33f488 AV |
245 | { |
246 | struct net_device *dev = tp->q->dev_queue->dev; | |
de4784ca | 247 | struct tc_cls_flower_offload cls_flower = {}; |
e8eb36cd | 248 | int err; |
5b33f488 | 249 | |
7b06e8ae | 250 | if (!tc_can_offload(dev)) { |
a6e16931 | 251 | if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev) || |
7b06e8ae | 252 | (f->hw_dev && !tc_can_offload(f->hw_dev))) { |
a6e16931 | 253 | f->hw_dev = dev; |
7091d8c7 | 254 | return tc_skip_sw(f->flags) ? -EINVAL : 0; |
a6e16931 | 255 | } |
7091d8c7 | 256 | dev = f->hw_dev; |
de4784ca | 257 | cls_flower.egress_dev = true; |
7091d8c7 HHZ |
258 | } else { |
259 | f->hw_dev = dev; | |
260 | } | |
5b33f488 | 261 | |
de4784ca JP |
262 | tc_cls_common_offload_init(&cls_flower.common, tp); |
263 | cls_flower.command = TC_CLSFLOWER_REPLACE; | |
264 | cls_flower.cookie = (unsigned long) f; | |
265 | cls_flower.dissector = dissector; | |
266 | cls_flower.mask = mask; | |
267 | cls_flower.key = &f->mkey; | |
268 | cls_flower.exts = &f->exts; | |
5b33f488 | 269 | |
de4784ca JP |
270 | err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, |
271 | &cls_flower); | |
55593960 OG |
272 | if (!err) |
273 | f->flags |= TCA_CLS_FLAGS_IN_HW; | |
e8eb36cd | 274 | |
3036dab6 | 275 | if (tc_skip_sw(f->flags)) |
e8eb36cd | 276 | return err; |
e8eb36cd | 277 | return 0; |
5b33f488 AV |
278 | } |
279 | ||
10cbc684 AV |
280 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
281 | { | |
de4784ca | 282 | struct tc_cls_flower_offload cls_flower = {}; |
7091d8c7 | 283 | struct net_device *dev = f->hw_dev; |
10cbc684 | 284 | |
7b06e8ae | 285 | if (!tc_can_offload(dev)) |
10cbc684 AV |
286 | return; |
287 | ||
de4784ca JP |
288 | tc_cls_common_offload_init(&cls_flower.common, tp); |
289 | cls_flower.command = TC_CLSFLOWER_STATS; | |
290 | cls_flower.cookie = (unsigned long) f; | |
291 | cls_flower.exts = &f->exts; | |
10cbc684 | 292 | |
d978db8d | 293 | dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, |
de4784ca | 294 | &cls_flower); |
10cbc684 AV |
295 | } |
296 | ||
13fa876e RD |
297 | static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f) |
298 | { | |
c15ab236 CM |
299 | struct cls_fl_head *head = rtnl_dereference(tp->root); |
300 | ||
301 | idr_remove_ext(&head->handle_idr, f->handle); | |
13fa876e | 302 | list_del_rcu(&f->list); |
79685219 | 303 | if (!tc_skip_hw(f->flags)) |
3036dab6 | 304 | fl_hw_destroy_filter(tp, f); |
13fa876e RD |
305 | tcf_unbind_filter(tp, &f->res); |
306 | call_rcu(&f->rcu, fl_destroy_filter); | |
307 | } | |
308 | ||
d9363774 DB |
309 | static void fl_destroy_sleepable(struct work_struct *work) |
310 | { | |
311 | struct cls_fl_head *head = container_of(work, struct cls_fl_head, | |
312 | work); | |
313 | if (head->mask_assigned) | |
314 | rhashtable_destroy(&head->ht); | |
315 | kfree(head); | |
316 | module_put(THIS_MODULE); | |
317 | } | |
318 | ||
319 | static void fl_destroy_rcu(struct rcu_head *rcu) | |
320 | { | |
321 | struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu); | |
322 | ||
323 | INIT_WORK(&head->work, fl_destroy_sleepable); | |
324 | schedule_work(&head->work); | |
325 | } | |
326 | ||
763dbf63 | 327 | static void fl_destroy(struct tcf_proto *tp) |
77b9900e JP |
328 | { |
329 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
330 | struct cls_fl_filter *f, *next; | |
331 | ||
13fa876e RD |
332 | list_for_each_entry_safe(f, next, &head->filters, list) |
333 | __fl_delete(tp, f); | |
c15ab236 | 334 | idr_destroy(&head->handle_idr); |
d9363774 DB |
335 | |
336 | __module_get(THIS_MODULE); | |
337 | call_rcu(&head->rcu, fl_destroy_rcu); | |
77b9900e JP |
338 | } |
339 | ||
8113c095 | 340 | static void *fl_get(struct tcf_proto *tp, u32 handle) |
77b9900e JP |
341 | { |
342 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
77b9900e | 343 | |
c15ab236 | 344 | return idr_find_ext(&head->handle_idr, handle); |
77b9900e JP |
345 | } |
346 | ||
347 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
348 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
349 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
350 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
351 | .len = IFNAMSIZ }, | |
352 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
353 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
354 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
355 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
356 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
357 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
358 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
359 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
360 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
361 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
362 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
363 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
364 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
365 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
366 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
367 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
368 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
369 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
370 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
371 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
372 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
373 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
374 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
375 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
376 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
377 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
378 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
379 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
380 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
381 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
382 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
383 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
384 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
385 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
386 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
387 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
388 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
389 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
390 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
391 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
392 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
393 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
394 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
395 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
396 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
397 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
398 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
399 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
400 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
401 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
402 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
403 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
404 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
405 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
406 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
407 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
408 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
409 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
410 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
411 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
412 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
413 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
414 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
415 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
416 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
417 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
fdfc7dd6 JP |
418 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
419 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
420 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
421 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
422 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
423 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
77b9900e JP |
424 | }; |
425 | ||
426 | static void fl_set_key_val(struct nlattr **tb, | |
427 | void *val, int val_type, | |
428 | void *mask, int mask_type, int len) | |
429 | { | |
430 | if (!tb[val_type]) | |
431 | return; | |
432 | memcpy(val, nla_data(tb[val_type]), len); | |
433 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
434 | memset(mask, 0xff, len); | |
435 | else | |
436 | memcpy(mask, nla_data(tb[mask_type]), len); | |
437 | } | |
438 | ||
1a7fca63 BL |
439 | static int fl_set_key_mpls(struct nlattr **tb, |
440 | struct flow_dissector_key_mpls *key_val, | |
441 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
442 | { |
443 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
444 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
445 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
446 | } | |
447 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
448 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
449 | ||
450 | if (bos & ~MPLS_BOS_MASK) | |
451 | return -EINVAL; | |
452 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
453 | key_mask->mpls_bos = MPLS_BOS_MASK; |
454 | } | |
455 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
456 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
457 | ||
458 | if (tc & ~MPLS_TC_MASK) | |
459 | return -EINVAL; | |
460 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
461 | key_mask->mpls_tc = MPLS_TC_MASK; |
462 | } | |
463 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
464 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
465 | ||
466 | if (label & ~MPLS_LABEL_MASK) | |
467 | return -EINVAL; | |
468 | key_val->mpls_label = label; | |
a577d8f7 BL |
469 | key_mask->mpls_label = MPLS_LABEL_MASK; |
470 | } | |
1a7fca63 | 471 | return 0; |
a577d8f7 BL |
472 | } |
473 | ||
9399ae9a HHZ |
474 | static void fl_set_key_vlan(struct nlattr **tb, |
475 | struct flow_dissector_key_vlan *key_val, | |
476 | struct flow_dissector_key_vlan *key_mask) | |
477 | { | |
478 | #define VLAN_PRIORITY_MASK 0x7 | |
479 | ||
480 | if (tb[TCA_FLOWER_KEY_VLAN_ID]) { | |
481 | key_val->vlan_id = | |
482 | nla_get_u16(tb[TCA_FLOWER_KEY_VLAN_ID]) & VLAN_VID_MASK; | |
483 | key_mask->vlan_id = VLAN_VID_MASK; | |
484 | } | |
485 | if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) { | |
486 | key_val->vlan_priority = | |
487 | nla_get_u8(tb[TCA_FLOWER_KEY_VLAN_PRIO]) & | |
488 | VLAN_PRIORITY_MASK; | |
489 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
490 | } | |
491 | } | |
492 | ||
faa3ffce OG |
493 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
494 | u32 *dissector_key, u32 *dissector_mask, | |
495 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
496 | { | |
497 | if (flower_mask & flower_flag_bit) { | |
498 | *dissector_mask |= dissector_flag_bit; | |
499 | if (flower_key & flower_flag_bit) | |
500 | *dissector_key |= dissector_flag_bit; | |
501 | } | |
502 | } | |
503 | ||
d9724772 OG |
504 | static int fl_set_key_flags(struct nlattr **tb, |
505 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
506 | { |
507 | u32 key, mask; | |
508 | ||
d9724772 OG |
509 | /* mask is mandatory for flags */ |
510 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
511 | return -EINVAL; | |
faa3ffce OG |
512 | |
513 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 514 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
515 | |
516 | *flags_key = 0; | |
517 | *flags_mask = 0; | |
518 | ||
519 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
520 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
d9724772 OG |
521 | |
522 | return 0; | |
faa3ffce OG |
523 | } |
524 | ||
4d80cc0a OG |
525 | static void fl_set_key_ip(struct nlattr **tb, |
526 | struct flow_dissector_key_ip *key, | |
527 | struct flow_dissector_key_ip *mask) | |
528 | { | |
529 | fl_set_key_val(tb, &key->tos, TCA_FLOWER_KEY_IP_TOS, | |
530 | &mask->tos, TCA_FLOWER_KEY_IP_TOS_MASK, | |
531 | sizeof(key->tos)); | |
532 | ||
533 | fl_set_key_val(tb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, | |
534 | &mask->ttl, TCA_FLOWER_KEY_IP_TTL_MASK, | |
535 | sizeof(key->ttl)); | |
536 | } | |
537 | ||
77b9900e JP |
538 | static int fl_set_key(struct net *net, struct nlattr **tb, |
539 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
540 | { | |
9399ae9a | 541 | __be16 ethertype; |
d9724772 | 542 | int ret = 0; |
dd3aa3b5 | 543 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 544 | if (tb[TCA_FLOWER_INDEV]) { |
dd3aa3b5 | 545 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); |
77b9900e JP |
546 | if (err < 0) |
547 | return err; | |
548 | key->indev_ifindex = err; | |
549 | mask->indev_ifindex = 0xffffffff; | |
550 | } | |
dd3aa3b5 | 551 | #endif |
77b9900e JP |
552 | |
553 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
554 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
555 | sizeof(key->eth.dst)); | |
556 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
557 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
558 | sizeof(key->eth.src)); | |
66530bdf | 559 | |
0b498a52 | 560 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
561 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
562 | ||
0b498a52 AB |
563 | if (ethertype == htons(ETH_P_8021Q)) { |
564 | fl_set_key_vlan(tb, &key->vlan, &mask->vlan); | |
565 | fl_set_key_val(tb, &key->basic.n_proto, | |
566 | TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
567 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
568 | sizeof(key->basic.n_proto)); | |
569 | } else { | |
570 | key->basic.n_proto = ethertype; | |
571 | mask->basic.n_proto = cpu_to_be16(~0); | |
572 | } | |
9399ae9a | 573 | } |
66530bdf | 574 | |
77b9900e JP |
575 | if (key->basic.n_proto == htons(ETH_P_IP) || |
576 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
577 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
578 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
579 | sizeof(key->basic.ip_proto)); | |
4d80cc0a | 580 | fl_set_key_ip(tb, &key->ip, &mask->ip); |
77b9900e | 581 | } |
66530bdf JHS |
582 | |
583 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
584 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 585 | mask->control.addr_type = ~0; |
77b9900e JP |
586 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
587 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
588 | sizeof(key->ipv4.src)); | |
589 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
590 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
591 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
592 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
593 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 594 | mask->control.addr_type = ~0; |
77b9900e JP |
595 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
596 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
597 | sizeof(key->ipv6.src)); | |
598 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
599 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
600 | sizeof(key->ipv6.dst)); | |
601 | } | |
66530bdf | 602 | |
77b9900e JP |
603 | if (key->basic.ip_proto == IPPROTO_TCP) { |
604 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 605 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
606 | sizeof(key->tp.src)); |
607 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 608 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 609 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
610 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
611 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
612 | sizeof(key->tcp.flags)); | |
77b9900e JP |
613 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
614 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 615 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
616 | sizeof(key->tp.src)); |
617 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 618 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 619 | sizeof(key->tp.dst)); |
5976c5f4 SH |
620 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
621 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
622 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
623 | sizeof(key->tp.src)); | |
624 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
625 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
626 | sizeof(key->tp.dst)); | |
7b684884 SH |
627 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
628 | key->basic.ip_proto == IPPROTO_ICMP) { | |
629 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
630 | &mask->icmp.type, | |
631 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
632 | sizeof(key->icmp.type)); | |
633 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
634 | &mask->icmp.code, | |
635 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
636 | sizeof(key->icmp.code)); | |
637 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
638 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
639 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
640 | &mask->icmp.type, | |
641 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
642 | sizeof(key->icmp.type)); | |
040587af | 643 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 644 | &mask->icmp.code, |
040587af | 645 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 646 | sizeof(key->icmp.code)); |
a577d8f7 BL |
647 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
648 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
649 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
650 | if (ret) | |
651 | return ret; | |
99d31326 SH |
652 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
653 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
654 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
655 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
656 | sizeof(key->arp.sip)); | |
657 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
658 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
659 | sizeof(key->arp.tip)); | |
660 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
661 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
662 | sizeof(key->arp.op)); | |
663 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
664 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
665 | sizeof(key->arp.sha)); | |
666 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
667 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
668 | sizeof(key->arp.tha)); | |
77b9900e JP |
669 | } |
670 | ||
bc3103f1 AV |
671 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
672 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
673 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 674 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
675 | fl_set_key_val(tb, &key->enc_ipv4.src, |
676 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
677 | &mask->enc_ipv4.src, | |
678 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
679 | sizeof(key->enc_ipv4.src)); | |
680 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
681 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
682 | &mask->enc_ipv4.dst, | |
683 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
684 | sizeof(key->enc_ipv4.dst)); | |
685 | } | |
686 | ||
687 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
688 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
689 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 690 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
691 | fl_set_key_val(tb, &key->enc_ipv6.src, |
692 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
693 | &mask->enc_ipv6.src, | |
694 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
695 | sizeof(key->enc_ipv6.src)); | |
696 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
697 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
698 | &mask->enc_ipv6.dst, | |
699 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
700 | sizeof(key->enc_ipv6.dst)); | |
701 | } | |
702 | ||
703 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 704 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
705 | sizeof(key->enc_key_id.keyid)); |
706 | ||
f4d997fd HHZ |
707 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
708 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
709 | sizeof(key->enc_tp.src)); | |
710 | ||
711 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
712 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
713 | sizeof(key->enc_tp.dst)); | |
714 | ||
d9724772 OG |
715 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
716 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 717 | |
d9724772 | 718 | return ret; |
77b9900e JP |
719 | } |
720 | ||
721 | static bool fl_mask_eq(struct fl_flow_mask *mask1, | |
722 | struct fl_flow_mask *mask2) | |
723 | { | |
724 | const long *lmask1 = fl_key_get_start(&mask1->key, mask1); | |
725 | const long *lmask2 = fl_key_get_start(&mask2->key, mask2); | |
726 | ||
727 | return !memcmp(&mask1->range, &mask2->range, sizeof(mask1->range)) && | |
728 | !memcmp(lmask1, lmask2, fl_mask_range(mask1)); | |
729 | } | |
730 | ||
731 | static const struct rhashtable_params fl_ht_params = { | |
732 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
733 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
734 | .automatic_shrinking = true, | |
735 | }; | |
736 | ||
737 | static int fl_init_hashtable(struct cls_fl_head *head, | |
738 | struct fl_flow_mask *mask) | |
739 | { | |
740 | head->ht_params = fl_ht_params; | |
741 | head->ht_params.key_len = fl_mask_range(mask); | |
742 | head->ht_params.key_offset += mask->range.start; | |
743 | ||
744 | return rhashtable_init(&head->ht, &head->ht_params); | |
745 | } | |
746 | ||
747 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
748 | #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member)) | |
77b9900e | 749 | |
339ba878 HHZ |
750 | #define FL_KEY_IS_MASKED(mask, member) \ |
751 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
752 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
753 | |
754 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
755 | do { \ | |
756 | keys[cnt].key_id = id; \ | |
757 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
758 | cnt++; \ | |
759 | } while(0); | |
760 | ||
339ba878 | 761 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 762 | do { \ |
339ba878 | 763 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
764 | FL_KEY_SET(keys, cnt, id, member); \ |
765 | } while(0); | |
766 | ||
767 | static void fl_init_dissector(struct cls_fl_head *head, | |
768 | struct fl_flow_mask *mask) | |
769 | { | |
770 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
771 | size_t cnt = 0; | |
772 | ||
42aecaa9 | 773 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 774 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
339ba878 HHZ |
775 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
776 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); | |
777 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
778 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); | |
779 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
780 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); | |
781 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
782 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
4d80cc0a OG |
783 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
784 | FLOW_DISSECTOR_KEY_IP, ip); | |
fdfc7dd6 JP |
785 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
786 | FLOW_DISSECTOR_KEY_TCP, tcp); | |
7b684884 SH |
787 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
788 | FLOW_DISSECTOR_KEY_ICMP, icmp); | |
99d31326 SH |
789 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
790 | FLOW_DISSECTOR_KEY_ARP, arp); | |
a577d8f7 BL |
791 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
792 | FLOW_DISSECTOR_KEY_MPLS, mpls); | |
9399ae9a HHZ |
793 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
794 | FLOW_DISSECTOR_KEY_VLAN, vlan); | |
519d1052 HHZ |
795 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
796 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); | |
797 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
798 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); | |
799 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
800 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); | |
801 | if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) || | |
802 | FL_KEY_IS_MASKED(&mask->key, enc_ipv6)) | |
803 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
804 | enc_control); | |
f4d997fd HHZ |
805 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
806 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); | |
77b9900e JP |
807 | |
808 | skb_flow_dissector_init(&head->dissector, keys, cnt); | |
809 | } | |
810 | ||
811 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
812 | struct fl_flow_mask *mask) | |
813 | { | |
814 | int err; | |
815 | ||
816 | if (head->mask_assigned) { | |
817 | if (!fl_mask_eq(&head->mask, mask)) | |
818 | return -EINVAL; | |
819 | else | |
820 | return 0; | |
821 | } | |
822 | ||
823 | /* Mask is not assigned yet. So assign it and init hashtable | |
824 | * according to that. | |
825 | */ | |
826 | err = fl_init_hashtable(head, mask); | |
827 | if (err) | |
828 | return err; | |
829 | memcpy(&head->mask, mask, sizeof(head->mask)); | |
830 | head->mask_assigned = true; | |
831 | ||
832 | fl_init_dissector(head, mask); | |
833 | ||
834 | return 0; | |
835 | } | |
836 | ||
837 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
838 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
839 | unsigned long base, struct nlattr **tb, | |
840 | struct nlattr *est, bool ovr) | |
841 | { | |
77b9900e JP |
842 | int err; |
843 | ||
45507529 | 844 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr); |
77b9900e JP |
845 | if (err < 0) |
846 | return err; | |
847 | ||
848 | if (tb[TCA_FLOWER_CLASSID]) { | |
849 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
850 | tcf_bind_filter(tp, &f->res, base); | |
851 | } | |
852 | ||
853 | err = fl_set_key(net, tb, &f->key, &mask->key); | |
854 | if (err) | |
45507529 | 855 | return err; |
77b9900e JP |
856 | |
857 | fl_mask_update_range(mask); | |
858 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
859 | ||
77b9900e | 860 | return 0; |
77b9900e JP |
861 | } |
862 | ||
77b9900e JP |
863 | static int fl_change(struct net *net, struct sk_buff *in_skb, |
864 | struct tcf_proto *tp, unsigned long base, | |
865 | u32 handle, struct nlattr **tca, | |
8113c095 | 866 | void **arg, bool ovr) |
77b9900e JP |
867 | { |
868 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 869 | struct cls_fl_filter *fold = *arg; |
77b9900e | 870 | struct cls_fl_filter *fnew; |
39b7b6a6 | 871 | struct nlattr **tb; |
77b9900e | 872 | struct fl_flow_mask mask = {}; |
c15ab236 | 873 | unsigned long idr_index; |
77b9900e JP |
874 | int err; |
875 | ||
876 | if (!tca[TCA_OPTIONS]) | |
877 | return -EINVAL; | |
878 | ||
39b7b6a6 AB |
879 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
880 | if (!tb) | |
881 | return -ENOBUFS; | |
882 | ||
fceb6435 JB |
883 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
884 | fl_policy, NULL); | |
77b9900e | 885 | if (err < 0) |
39b7b6a6 | 886 | goto errout_tb; |
77b9900e | 887 | |
39b7b6a6 AB |
888 | if (fold && handle && fold->handle != handle) { |
889 | err = -EINVAL; | |
890 | goto errout_tb; | |
891 | } | |
77b9900e JP |
892 | |
893 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
894 | if (!fnew) { |
895 | err = -ENOBUFS; | |
896 | goto errout_tb; | |
897 | } | |
77b9900e | 898 | |
b9a24bb7 WC |
899 | err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0); |
900 | if (err < 0) | |
901 | goto errout; | |
77b9900e JP |
902 | |
903 | if (!handle) { | |
c15ab236 CM |
904 | err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index, |
905 | 1, 0x80000000, GFP_KERNEL); | |
906 | if (err) | |
77b9900e | 907 | goto errout; |
c15ab236 CM |
908 | fnew->handle = idr_index; |
909 | } | |
910 | ||
911 | /* user specifies a handle and it doesn't exist */ | |
912 | if (handle && !fold) { | |
913 | err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index, | |
914 | handle, handle + 1, GFP_KERNEL); | |
915 | if (err) | |
916 | goto errout; | |
917 | fnew->handle = idr_index; | |
77b9900e | 918 | } |
77b9900e | 919 | |
e69985c6 AV |
920 | if (tb[TCA_FLOWER_FLAGS]) { |
921 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
922 | ||
923 | if (!tc_flags_valid(fnew->flags)) { | |
924 | err = -EINVAL; | |
925 | goto errout; | |
926 | } | |
927 | } | |
5b33f488 | 928 | |
77b9900e JP |
929 | err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr); |
930 | if (err) | |
931 | goto errout; | |
932 | ||
933 | err = fl_check_assign_mask(head, &mask); | |
934 | if (err) | |
935 | goto errout; | |
936 | ||
e8eb36cd | 937 | if (!tc_skip_sw(fnew->flags)) { |
a3308d8f PB |
938 | if (!fold && fl_lookup(head, &fnew->mkey)) { |
939 | err = -EEXIST; | |
940 | goto errout; | |
941 | } | |
942 | ||
e69985c6 AV |
943 | err = rhashtable_insert_fast(&head->ht, &fnew->ht_node, |
944 | head->ht_params); | |
945 | if (err) | |
946 | goto errout; | |
947 | } | |
5b33f488 | 948 | |
79685219 HHZ |
949 | if (!tc_skip_hw(fnew->flags)) { |
950 | err = fl_hw_replace_filter(tp, | |
951 | &head->dissector, | |
952 | &mask.key, | |
3036dab6 | 953 | fnew); |
79685219 HHZ |
954 | if (err) |
955 | goto errout; | |
956 | } | |
5b33f488 | 957 | |
55593960 OG |
958 | if (!tc_in_hw(fnew->flags)) |
959 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
960 | ||
5b33f488 | 961 | if (fold) { |
725cbb62 JP |
962 | if (!tc_skip_sw(fold->flags)) |
963 | rhashtable_remove_fast(&head->ht, &fold->ht_node, | |
964 | head->ht_params); | |
79685219 | 965 | if (!tc_skip_hw(fold->flags)) |
3036dab6 | 966 | fl_hw_destroy_filter(tp, fold); |
5b33f488 | 967 | } |
77b9900e | 968 | |
8113c095 | 969 | *arg = fnew; |
77b9900e JP |
970 | |
971 | if (fold) { | |
c15ab236 CM |
972 | fnew->handle = handle; |
973 | idr_replace_ext(&head->handle_idr, fnew, fnew->handle); | |
ff3532f2 | 974 | list_replace_rcu(&fold->list, &fnew->list); |
77b9900e JP |
975 | tcf_unbind_filter(tp, &fold->res); |
976 | call_rcu(&fold->rcu, fl_destroy_filter); | |
977 | } else { | |
978 | list_add_tail_rcu(&fnew->list, &head->filters); | |
979 | } | |
980 | ||
39b7b6a6 | 981 | kfree(tb); |
77b9900e JP |
982 | return 0; |
983 | ||
984 | errout: | |
b9a24bb7 | 985 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 986 | kfree(fnew); |
39b7b6a6 AB |
987 | errout_tb: |
988 | kfree(tb); | |
77b9900e JP |
989 | return err; |
990 | } | |
991 | ||
8113c095 | 992 | static int fl_delete(struct tcf_proto *tp, void *arg, bool *last) |
77b9900e JP |
993 | { |
994 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 995 | struct cls_fl_filter *f = arg; |
77b9900e | 996 | |
725cbb62 JP |
997 | if (!tc_skip_sw(f->flags)) |
998 | rhashtable_remove_fast(&head->ht, &f->ht_node, | |
999 | head->ht_params); | |
13fa876e | 1000 | __fl_delete(tp, f); |
763dbf63 | 1001 | *last = list_empty(&head->filters); |
77b9900e JP |
1002 | return 0; |
1003 | } | |
1004 | ||
1005 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg) | |
1006 | { | |
1007 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1008 | struct cls_fl_filter *f; | |
1009 | ||
1010 | list_for_each_entry_rcu(f, &head->filters, list) { | |
1011 | if (arg->count < arg->skip) | |
1012 | goto skip; | |
8113c095 | 1013 | if (arg->fn(tp, f, arg) < 0) { |
77b9900e JP |
1014 | arg->stop = 1; |
1015 | break; | |
1016 | } | |
1017 | skip: | |
1018 | arg->count++; | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | static int fl_dump_key_val(struct sk_buff *skb, | |
1023 | void *val, int val_type, | |
1024 | void *mask, int mask_type, int len) | |
1025 | { | |
1026 | int err; | |
1027 | ||
1028 | if (!memchr_inv(mask, 0, len)) | |
1029 | return 0; | |
1030 | err = nla_put(skb, val_type, len, val); | |
1031 | if (err) | |
1032 | return err; | |
1033 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1034 | err = nla_put(skb, mask_type, len, mask); | |
1035 | if (err) | |
1036 | return err; | |
1037 | } | |
1038 | return 0; | |
1039 | } | |
1040 | ||
a577d8f7 BL |
1041 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1042 | struct flow_dissector_key_mpls *mpls_key, | |
1043 | struct flow_dissector_key_mpls *mpls_mask) | |
1044 | { | |
1045 | int err; | |
1046 | ||
1047 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1048 | return 0; | |
1049 | if (mpls_mask->mpls_ttl) { | |
1050 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1051 | mpls_key->mpls_ttl); | |
1052 | if (err) | |
1053 | return err; | |
1054 | } | |
1055 | if (mpls_mask->mpls_tc) { | |
1056 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1057 | mpls_key->mpls_tc); | |
1058 | if (err) | |
1059 | return err; | |
1060 | } | |
1061 | if (mpls_mask->mpls_label) { | |
1062 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1063 | mpls_key->mpls_label); | |
1064 | if (err) | |
1065 | return err; | |
1066 | } | |
1067 | if (mpls_mask->mpls_bos) { | |
1068 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1069 | mpls_key->mpls_bos); | |
1070 | if (err) | |
1071 | return err; | |
1072 | } | |
1073 | return 0; | |
1074 | } | |
1075 | ||
4d80cc0a OG |
1076 | static int fl_dump_key_ip(struct sk_buff *skb, |
1077 | struct flow_dissector_key_ip *key, | |
1078 | struct flow_dissector_key_ip *mask) | |
1079 | { | |
1080 | if (fl_dump_key_val(skb, &key->tos, TCA_FLOWER_KEY_IP_TOS, &mask->tos, | |
1081 | TCA_FLOWER_KEY_IP_TOS_MASK, sizeof(key->tos)) || | |
1082 | fl_dump_key_val(skb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, &mask->ttl, | |
1083 | TCA_FLOWER_KEY_IP_TTL_MASK, sizeof(key->ttl))) | |
1084 | return -1; | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
9399ae9a HHZ |
1089 | static int fl_dump_key_vlan(struct sk_buff *skb, |
1090 | struct flow_dissector_key_vlan *vlan_key, | |
1091 | struct flow_dissector_key_vlan *vlan_mask) | |
1092 | { | |
1093 | int err; | |
1094 | ||
1095 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1096 | return 0; | |
1097 | if (vlan_mask->vlan_id) { | |
1098 | err = nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ID, | |
1099 | vlan_key->vlan_id); | |
1100 | if (err) | |
1101 | return err; | |
1102 | } | |
1103 | if (vlan_mask->vlan_priority) { | |
1104 | err = nla_put_u8(skb, TCA_FLOWER_KEY_VLAN_PRIO, | |
1105 | vlan_key->vlan_priority); | |
1106 | if (err) | |
1107 | return err; | |
1108 | } | |
1109 | return 0; | |
1110 | } | |
1111 | ||
faa3ffce OG |
1112 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1113 | u32 *flower_key, u32 *flower_mask, | |
1114 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1115 | { | |
1116 | if (dissector_mask & dissector_flag_bit) { | |
1117 | *flower_mask |= flower_flag_bit; | |
1118 | if (dissector_key & dissector_flag_bit) | |
1119 | *flower_key |= flower_flag_bit; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1124 | { | |
1125 | u32 key, mask; | |
1126 | __be32 _key, _mask; | |
1127 | int err; | |
1128 | ||
1129 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1130 | return 0; | |
1131 | ||
1132 | key = 0; | |
1133 | mask = 0; | |
1134 | ||
1135 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1136 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
1137 | ||
1138 | _key = cpu_to_be32(key); | |
1139 | _mask = cpu_to_be32(mask); | |
1140 | ||
1141 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1142 | if (err) | |
1143 | return err; | |
1144 | ||
1145 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1146 | } | |
1147 | ||
8113c095 | 1148 | static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh, |
77b9900e JP |
1149 | struct sk_buff *skb, struct tcmsg *t) |
1150 | { | |
1151 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 1152 | struct cls_fl_filter *f = fh; |
77b9900e JP |
1153 | struct nlattr *nest; |
1154 | struct fl_flow_key *key, *mask; | |
1155 | ||
1156 | if (!f) | |
1157 | return skb->len; | |
1158 | ||
1159 | t->tcm_handle = f->handle; | |
1160 | ||
1161 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
1162 | if (!nest) | |
1163 | goto nla_put_failure; | |
1164 | ||
1165 | if (f->res.classid && | |
1166 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
1167 | goto nla_put_failure; | |
1168 | ||
1169 | key = &f->key; | |
1170 | mask = &head->mask.key; | |
1171 | ||
1172 | if (mask->indev_ifindex) { | |
1173 | struct net_device *dev; | |
1174 | ||
1175 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1176 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1177 | goto nla_put_failure; | |
1178 | } | |
1179 | ||
79685219 HHZ |
1180 | if (!tc_skip_hw(f->flags)) |
1181 | fl_hw_update_stats(tp, f); | |
10cbc684 | 1182 | |
77b9900e JP |
1183 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, |
1184 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1185 | sizeof(key->eth.dst)) || | |
1186 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1187 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1188 | sizeof(key->eth.src)) || | |
1189 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1190 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1191 | sizeof(key->basic.n_proto))) | |
1192 | goto nla_put_failure; | |
9399ae9a | 1193 | |
a577d8f7 BL |
1194 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1195 | goto nla_put_failure; | |
1196 | ||
9399ae9a HHZ |
1197 | if (fl_dump_key_vlan(skb, &key->vlan, &mask->vlan)) |
1198 | goto nla_put_failure; | |
1199 | ||
77b9900e JP |
1200 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
1201 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 1202 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 1203 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a OG |
1204 | sizeof(key->basic.ip_proto)) || |
1205 | fl_dump_key_ip(skb, &key->ip, &mask->ip))) | |
77b9900e JP |
1206 | goto nla_put_failure; |
1207 | ||
c3f83241 | 1208 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
1209 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1210 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1211 | sizeof(key->ipv4.src)) || | |
1212 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1213 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1214 | sizeof(key->ipv4.dst)))) | |
1215 | goto nla_put_failure; | |
c3f83241 | 1216 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
1217 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1218 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1219 | sizeof(key->ipv6.src)) || | |
1220 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1221 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1222 | sizeof(key->ipv6.dst)))) | |
1223 | goto nla_put_failure; | |
1224 | ||
1225 | if (key->basic.ip_proto == IPPROTO_TCP && | |
1226 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1227 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1228 | sizeof(key->tp.src)) || |
1229 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1230 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
1231 | sizeof(key->tp.dst)) || |
1232 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
1233 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1234 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
1235 | goto nla_put_failure; |
1236 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
1237 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1238 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1239 | sizeof(key->tp.src)) || |
1240 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1241 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
1242 | sizeof(key->tp.dst)))) |
1243 | goto nla_put_failure; | |
1244 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
1245 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1246 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1247 | sizeof(key->tp.src)) || | |
1248 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1249 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
1250 | sizeof(key->tp.dst)))) |
1251 | goto nla_put_failure; | |
7b684884 SH |
1252 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
1253 | key->basic.ip_proto == IPPROTO_ICMP && | |
1254 | (fl_dump_key_val(skb, &key->icmp.type, | |
1255 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
1256 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1257 | sizeof(key->icmp.type)) || | |
1258 | fl_dump_key_val(skb, &key->icmp.code, | |
1259 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
1260 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1261 | sizeof(key->icmp.code)))) | |
1262 | goto nla_put_failure; | |
1263 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1264 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
1265 | (fl_dump_key_val(skb, &key->icmp.type, | |
1266 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
1267 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1268 | sizeof(key->icmp.type)) || | |
1269 | fl_dump_key_val(skb, &key->icmp.code, | |
1270 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
1271 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
1272 | sizeof(key->icmp.code)))) | |
1273 | goto nla_put_failure; | |
99d31326 SH |
1274 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
1275 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
1276 | (fl_dump_key_val(skb, &key->arp.sip, | |
1277 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
1278 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1279 | sizeof(key->arp.sip)) || | |
1280 | fl_dump_key_val(skb, &key->arp.tip, | |
1281 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
1282 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1283 | sizeof(key->arp.tip)) || | |
1284 | fl_dump_key_val(skb, &key->arp.op, | |
1285 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
1286 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
1287 | sizeof(key->arp.op)) || | |
1288 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1289 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1290 | sizeof(key->arp.sha)) || | |
1291 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1292 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1293 | sizeof(key->arp.tha)))) | |
1294 | goto nla_put_failure; | |
77b9900e | 1295 | |
bc3103f1 AV |
1296 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
1297 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
1298 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
1299 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1300 | sizeof(key->enc_ipv4.src)) || | |
1301 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
1302 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
1303 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1304 | sizeof(key->enc_ipv4.dst)))) | |
1305 | goto nla_put_failure; | |
1306 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
1307 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
1308 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
1309 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1310 | sizeof(key->enc_ipv6.src)) || | |
1311 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
1312 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1313 | &mask->enc_ipv6.dst, | |
1314 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1315 | sizeof(key->enc_ipv6.dst)))) | |
1316 | goto nla_put_failure; | |
1317 | ||
1318 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1319 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
1320 | sizeof(key->enc_key_id)) || |
1321 | fl_dump_key_val(skb, &key->enc_tp.src, | |
1322 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
1323 | &mask->enc_tp.src, | |
1324 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1325 | sizeof(key->enc_tp.src)) || | |
1326 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
1327 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1328 | &mask->enc_tp.dst, | |
1329 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1330 | sizeof(key->enc_tp.dst))) | |
bc3103f1 AV |
1331 | goto nla_put_failure; |
1332 | ||
faa3ffce OG |
1333 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
1334 | goto nla_put_failure; | |
1335 | ||
749e6720 OG |
1336 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
1337 | goto nla_put_failure; | |
e69985c6 | 1338 | |
77b9900e JP |
1339 | if (tcf_exts_dump(skb, &f->exts)) |
1340 | goto nla_put_failure; | |
1341 | ||
1342 | nla_nest_end(skb, nest); | |
1343 | ||
1344 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
1345 | goto nla_put_failure; | |
1346 | ||
1347 | return skb->len; | |
1348 | ||
1349 | nla_put_failure: | |
1350 | nla_nest_cancel(skb, nest); | |
1351 | return -1; | |
1352 | } | |
1353 | ||
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, | |
1364 | .owner = THIS_MODULE, | |
1365 | }; | |
1366 | ||
1367 | static int __init cls_fl_init(void) | |
1368 | { | |
1369 | return register_tcf_proto_ops(&cls_fl_ops); | |
1370 | } | |
1371 | ||
1372 | static void __exit cls_fl_exit(void) | |
1373 | { | |
1374 | unregister_tcf_proto_ops(&cls_fl_ops); | |
1375 | } | |
1376 | ||
1377 | module_init(cls_fl_init); | |
1378 | module_exit(cls_fl_exit); | |
1379 | ||
1380 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
1381 | MODULE_DESCRIPTION("Flower classifier"); | |
1382 | MODULE_LICENSE("GPL v2"); |