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; | |
71 | u32 hgen; | |
72 | bool mask_assigned; | |
73 | struct list_head filters; | |
74 | struct rhashtable_params ht_params; | |
d9363774 DB |
75 | union { |
76 | struct work_struct work; | |
77 | struct rcu_head rcu; | |
78 | }; | |
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 HHZ |
91 | struct tc_to_netdev tc; |
92 | struct net_device *hw_dev; | |
77b9900e JP |
93 | }; |
94 | ||
95 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) | |
96 | { | |
97 | return mask->range.end - mask->range.start; | |
98 | } | |
99 | ||
100 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
101 | { | |
102 | const u8 *bytes = (const u8 *) &mask->key; | |
103 | size_t size = sizeof(mask->key); | |
104 | size_t i, first = 0, last = size - 1; | |
105 | ||
106 | for (i = 0; i < sizeof(mask->key); i++) { | |
107 | if (bytes[i]) { | |
108 | if (!first && i) | |
109 | first = i; | |
110 | last = i; | |
111 | } | |
112 | } | |
113 | mask->range.start = rounddown(first, sizeof(long)); | |
114 | mask->range.end = roundup(last + 1, sizeof(long)); | |
115 | } | |
116 | ||
117 | static void *fl_key_get_start(struct fl_flow_key *key, | |
118 | const struct fl_flow_mask *mask) | |
119 | { | |
120 | return (u8 *) key + mask->range.start; | |
121 | } | |
122 | ||
123 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
124 | struct fl_flow_mask *mask) | |
125 | { | |
126 | const long *lkey = fl_key_get_start(key, mask); | |
127 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
128 | long *lmkey = fl_key_get_start(mkey, mask); | |
129 | int i; | |
130 | ||
131 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
132 | *lmkey++ = *lkey++ & *lmask++; | |
133 | } | |
134 | ||
135 | static void fl_clear_masked_range(struct fl_flow_key *key, | |
136 | struct fl_flow_mask *mask) | |
137 | { | |
138 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
139 | } | |
140 | ||
a3308d8f PB |
141 | static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head, |
142 | struct fl_flow_key *mkey) | |
143 | { | |
144 | return rhashtable_lookup_fast(&head->ht, | |
145 | fl_key_get_start(mkey, &head->mask), | |
146 | head->ht_params); | |
147 | } | |
148 | ||
77b9900e JP |
149 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
150 | struct tcf_result *res) | |
151 | { | |
152 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
153 | struct cls_fl_filter *f; | |
154 | struct fl_flow_key skb_key; | |
155 | struct fl_flow_key skb_mkey; | |
bc3103f1 | 156 | struct ip_tunnel_info *info; |
77b9900e | 157 | |
e69985c6 AV |
158 | if (!atomic_read(&head->ht.nelems)) |
159 | return -1; | |
160 | ||
77b9900e | 161 | fl_clear_masked_range(&skb_key, &head->mask); |
bc3103f1 AV |
162 | |
163 | info = skb_tunnel_info(skb); | |
164 | if (info) { | |
165 | struct ip_tunnel_key *key = &info->key; | |
166 | ||
167 | switch (ip_tunnel_info_af(info)) { | |
168 | case AF_INET: | |
0df0f207 PB |
169 | skb_key.enc_control.addr_type = |
170 | FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
bc3103f1 AV |
171 | skb_key.enc_ipv4.src = key->u.ipv4.src; |
172 | skb_key.enc_ipv4.dst = key->u.ipv4.dst; | |
173 | break; | |
174 | case AF_INET6: | |
0df0f207 PB |
175 | skb_key.enc_control.addr_type = |
176 | FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
bc3103f1 AV |
177 | skb_key.enc_ipv6.src = key->u.ipv6.src; |
178 | skb_key.enc_ipv6.dst = key->u.ipv6.dst; | |
179 | break; | |
180 | } | |
181 | ||
182 | skb_key.enc_key_id.keyid = tunnel_id_to_key32(key->tun_id); | |
f4d997fd HHZ |
183 | skb_key.enc_tp.src = key->tp_src; |
184 | skb_key.enc_tp.dst = key->tp_dst; | |
bc3103f1 AV |
185 | } |
186 | ||
77b9900e JP |
187 | skb_key.indev_ifindex = skb->skb_iif; |
188 | /* skb_flow_dissect() does not set n_proto in case an unknown protocol, | |
189 | * so do it rather here. | |
190 | */ | |
191 | skb_key.basic.n_proto = skb->protocol; | |
cd79a238 | 192 | skb_flow_dissect(skb, &head->dissector, &skb_key, 0); |
77b9900e JP |
193 | |
194 | fl_set_masked_key(&skb_mkey, &skb_key, &head->mask); | |
195 | ||
a3308d8f | 196 | f = fl_lookup(head, &skb_mkey); |
e8eb36cd | 197 | if (f && !tc_skip_sw(f->flags)) { |
77b9900e JP |
198 | *res = f->res; |
199 | return tcf_exts_exec(skb, &f->exts, res); | |
200 | } | |
201 | return -1; | |
202 | } | |
203 | ||
204 | static int fl_init(struct tcf_proto *tp) | |
205 | { | |
206 | struct cls_fl_head *head; | |
207 | ||
208 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
209 | if (!head) | |
210 | return -ENOBUFS; | |
211 | ||
212 | INIT_LIST_HEAD_RCU(&head->filters); | |
213 | rcu_assign_pointer(tp->root, head); | |
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 | { |
5b33f488 | 228 | struct tc_cls_flower_offload offload = {0}; |
7091d8c7 HHZ |
229 | struct net_device *dev = f->hw_dev; |
230 | struct tc_to_netdev *tc = &f->tc; | |
5b33f488 | 231 | |
79685219 | 232 | if (!tc_can_offload(dev, tp)) |
5b33f488 AV |
233 | return; |
234 | ||
5fd9fc4e | 235 | tc_cls_common_offload_init(&offload.common, tp); |
5b33f488 | 236 | offload.command = TC_CLSFLOWER_DESTROY; |
3036dab6 | 237 | offload.cookie = (unsigned long)f; |
5b33f488 | 238 | |
7091d8c7 | 239 | tc->cls_flower = &offload; |
5b33f488 | 240 | |
5fd9fc4e | 241 | dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, tc); |
5b33f488 AV |
242 | } |
243 | ||
e8eb36cd AV |
244 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
245 | struct flow_dissector *dissector, | |
246 | struct fl_flow_key *mask, | |
3036dab6 | 247 | struct cls_fl_filter *f) |
5b33f488 AV |
248 | { |
249 | struct net_device *dev = tp->q->dev_queue->dev; | |
250 | struct tc_cls_flower_offload offload = {0}; | |
7091d8c7 | 251 | struct tc_to_netdev *tc = &f->tc; |
e8eb36cd | 252 | int err; |
5b33f488 | 253 | |
7091d8c7 | 254 | if (!tc_can_offload(dev, tp)) { |
a6e16931 HHZ |
255 | if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev) || |
256 | (f->hw_dev && !tc_can_offload(f->hw_dev, tp))) { | |
257 | f->hw_dev = dev; | |
7091d8c7 | 258 | return tc_skip_sw(f->flags) ? -EINVAL : 0; |
a6e16931 | 259 | } |
7091d8c7 | 260 | dev = f->hw_dev; |
3e0e8266 | 261 | offload.egress_dev = true; |
7091d8c7 HHZ |
262 | } else { |
263 | f->hw_dev = dev; | |
264 | } | |
5b33f488 | 265 | |
5fd9fc4e | 266 | tc_cls_common_offload_init(&offload.common, tp); |
5b33f488 | 267 | offload.command = TC_CLSFLOWER_REPLACE; |
3036dab6 | 268 | offload.cookie = (unsigned long)f; |
5b33f488 AV |
269 | offload.dissector = dissector; |
270 | offload.mask = mask; | |
f93bd17b | 271 | offload.key = &f->mkey; |
3036dab6 | 272 | offload.exts = &f->exts; |
5b33f488 | 273 | |
7091d8c7 | 274 | tc->cls_flower = &offload; |
5b33f488 | 275 | |
5fd9fc4e | 276 | err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, tc); |
55593960 OG |
277 | if (!err) |
278 | f->flags |= TCA_CLS_FLAGS_IN_HW; | |
e8eb36cd | 279 | |
3036dab6 | 280 | if (tc_skip_sw(f->flags)) |
e8eb36cd | 281 | return err; |
e8eb36cd | 282 | return 0; |
5b33f488 AV |
283 | } |
284 | ||
10cbc684 AV |
285 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
286 | { | |
10cbc684 | 287 | struct tc_cls_flower_offload offload = {0}; |
7091d8c7 HHZ |
288 | struct net_device *dev = f->hw_dev; |
289 | struct tc_to_netdev *tc = &f->tc; | |
10cbc684 | 290 | |
79685219 | 291 | if (!tc_can_offload(dev, tp)) |
10cbc684 AV |
292 | return; |
293 | ||
5fd9fc4e | 294 | tc_cls_common_offload_init(&offload.common, tp); |
10cbc684 AV |
295 | offload.command = TC_CLSFLOWER_STATS; |
296 | offload.cookie = (unsigned long)f; | |
297 | offload.exts = &f->exts; | |
298 | ||
7091d8c7 | 299 | tc->cls_flower = &offload; |
10cbc684 | 300 | |
5fd9fc4e | 301 | dev->netdev_ops->ndo_setup_tc(dev, TC_CLSFLOWER_STATS, tc); |
10cbc684 AV |
302 | } |
303 | ||
13fa876e RD |
304 | static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f) |
305 | { | |
306 | list_del_rcu(&f->list); | |
79685219 | 307 | if (!tc_skip_hw(f->flags)) |
3036dab6 | 308 | fl_hw_destroy_filter(tp, f); |
13fa876e RD |
309 | tcf_unbind_filter(tp, &f->res); |
310 | call_rcu(&f->rcu, fl_destroy_filter); | |
311 | } | |
312 | ||
d9363774 DB |
313 | static void fl_destroy_sleepable(struct work_struct *work) |
314 | { | |
315 | struct cls_fl_head *head = container_of(work, struct cls_fl_head, | |
316 | work); | |
317 | if (head->mask_assigned) | |
318 | rhashtable_destroy(&head->ht); | |
319 | kfree(head); | |
320 | module_put(THIS_MODULE); | |
321 | } | |
322 | ||
323 | static void fl_destroy_rcu(struct rcu_head *rcu) | |
324 | { | |
325 | struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu); | |
326 | ||
327 | INIT_WORK(&head->work, fl_destroy_sleepable); | |
328 | schedule_work(&head->work); | |
329 | } | |
330 | ||
763dbf63 | 331 | static void fl_destroy(struct tcf_proto *tp) |
77b9900e JP |
332 | { |
333 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
334 | struct cls_fl_filter *f, *next; | |
335 | ||
13fa876e RD |
336 | list_for_each_entry_safe(f, next, &head->filters, list) |
337 | __fl_delete(tp, f); | |
d9363774 DB |
338 | |
339 | __module_get(THIS_MODULE); | |
340 | call_rcu(&head->rcu, fl_destroy_rcu); | |
77b9900e JP |
341 | } |
342 | ||
343 | static unsigned long fl_get(struct tcf_proto *tp, u32 handle) | |
344 | { | |
345 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
346 | struct cls_fl_filter *f; | |
347 | ||
348 | list_for_each_entry(f, &head->filters, list) | |
349 | if (f->handle == handle) | |
350 | return (unsigned long) f; | |
351 | return 0; | |
352 | } | |
353 | ||
354 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
355 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
356 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
357 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
358 | .len = IFNAMSIZ }, | |
359 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
360 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
361 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
362 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
363 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
364 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
365 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
366 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
367 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
368 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
369 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
370 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
371 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
372 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
373 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
374 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
375 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
376 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
377 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
378 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
379 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
380 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
381 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
382 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
383 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
384 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
385 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
386 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
387 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
388 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
389 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
390 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
391 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
392 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
393 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
394 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
395 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
396 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
397 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
398 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
399 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
400 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
401 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
402 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
403 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
404 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
405 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
406 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
407 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
408 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
409 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
410 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
411 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
412 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
413 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
414 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
415 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
416 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
417 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
418 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
419 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
420 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
421 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
422 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
423 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
424 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
fdfc7dd6 JP |
425 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
426 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
427 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
428 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
429 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
430 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
77b9900e JP |
431 | }; |
432 | ||
433 | static void fl_set_key_val(struct nlattr **tb, | |
434 | void *val, int val_type, | |
435 | void *mask, int mask_type, int len) | |
436 | { | |
437 | if (!tb[val_type]) | |
438 | return; | |
439 | memcpy(val, nla_data(tb[val_type]), len); | |
440 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
441 | memset(mask, 0xff, len); | |
442 | else | |
443 | memcpy(mask, nla_data(tb[mask_type]), len); | |
444 | } | |
445 | ||
1a7fca63 BL |
446 | static int fl_set_key_mpls(struct nlattr **tb, |
447 | struct flow_dissector_key_mpls *key_val, | |
448 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
449 | { |
450 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
451 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
452 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
453 | } | |
454 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
455 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
456 | ||
457 | if (bos & ~MPLS_BOS_MASK) | |
458 | return -EINVAL; | |
459 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
460 | key_mask->mpls_bos = MPLS_BOS_MASK; |
461 | } | |
462 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
463 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
464 | ||
465 | if (tc & ~MPLS_TC_MASK) | |
466 | return -EINVAL; | |
467 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
468 | key_mask->mpls_tc = MPLS_TC_MASK; |
469 | } | |
470 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
471 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
472 | ||
473 | if (label & ~MPLS_LABEL_MASK) | |
474 | return -EINVAL; | |
475 | key_val->mpls_label = label; | |
a577d8f7 BL |
476 | key_mask->mpls_label = MPLS_LABEL_MASK; |
477 | } | |
1a7fca63 | 478 | return 0; |
a577d8f7 BL |
479 | } |
480 | ||
9399ae9a HHZ |
481 | static void fl_set_key_vlan(struct nlattr **tb, |
482 | struct flow_dissector_key_vlan *key_val, | |
483 | struct flow_dissector_key_vlan *key_mask) | |
484 | { | |
485 | #define VLAN_PRIORITY_MASK 0x7 | |
486 | ||
487 | if (tb[TCA_FLOWER_KEY_VLAN_ID]) { | |
488 | key_val->vlan_id = | |
489 | nla_get_u16(tb[TCA_FLOWER_KEY_VLAN_ID]) & VLAN_VID_MASK; | |
490 | key_mask->vlan_id = VLAN_VID_MASK; | |
491 | } | |
492 | if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) { | |
493 | key_val->vlan_priority = | |
494 | nla_get_u8(tb[TCA_FLOWER_KEY_VLAN_PRIO]) & | |
495 | VLAN_PRIORITY_MASK; | |
496 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
497 | } | |
498 | } | |
499 | ||
faa3ffce OG |
500 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
501 | u32 *dissector_key, u32 *dissector_mask, | |
502 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
503 | { | |
504 | if (flower_mask & flower_flag_bit) { | |
505 | *dissector_mask |= dissector_flag_bit; | |
506 | if (flower_key & flower_flag_bit) | |
507 | *dissector_key |= dissector_flag_bit; | |
508 | } | |
509 | } | |
510 | ||
d9724772 OG |
511 | static int fl_set_key_flags(struct nlattr **tb, |
512 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
513 | { |
514 | u32 key, mask; | |
515 | ||
d9724772 OG |
516 | /* mask is mandatory for flags */ |
517 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
518 | return -EINVAL; | |
faa3ffce OG |
519 | |
520 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 521 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
522 | |
523 | *flags_key = 0; | |
524 | *flags_mask = 0; | |
525 | ||
526 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
527 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
d9724772 OG |
528 | |
529 | return 0; | |
faa3ffce OG |
530 | } |
531 | ||
4d80cc0a OG |
532 | static void fl_set_key_ip(struct nlattr **tb, |
533 | struct flow_dissector_key_ip *key, | |
534 | struct flow_dissector_key_ip *mask) | |
535 | { | |
536 | fl_set_key_val(tb, &key->tos, TCA_FLOWER_KEY_IP_TOS, | |
537 | &mask->tos, TCA_FLOWER_KEY_IP_TOS_MASK, | |
538 | sizeof(key->tos)); | |
539 | ||
540 | fl_set_key_val(tb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, | |
541 | &mask->ttl, TCA_FLOWER_KEY_IP_TTL_MASK, | |
542 | sizeof(key->ttl)); | |
543 | } | |
544 | ||
77b9900e JP |
545 | static int fl_set_key(struct net *net, struct nlattr **tb, |
546 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
547 | { | |
9399ae9a | 548 | __be16 ethertype; |
d9724772 | 549 | int ret = 0; |
dd3aa3b5 | 550 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 551 | if (tb[TCA_FLOWER_INDEV]) { |
dd3aa3b5 | 552 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); |
77b9900e JP |
553 | if (err < 0) |
554 | return err; | |
555 | key->indev_ifindex = err; | |
556 | mask->indev_ifindex = 0xffffffff; | |
557 | } | |
dd3aa3b5 | 558 | #endif |
77b9900e JP |
559 | |
560 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
561 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
562 | sizeof(key->eth.dst)); | |
563 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
564 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
565 | sizeof(key->eth.src)); | |
66530bdf | 566 | |
0b498a52 | 567 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
568 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
569 | ||
0b498a52 AB |
570 | if (ethertype == htons(ETH_P_8021Q)) { |
571 | fl_set_key_vlan(tb, &key->vlan, &mask->vlan); | |
572 | fl_set_key_val(tb, &key->basic.n_proto, | |
573 | TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
574 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
575 | sizeof(key->basic.n_proto)); | |
576 | } else { | |
577 | key->basic.n_proto = ethertype; | |
578 | mask->basic.n_proto = cpu_to_be16(~0); | |
579 | } | |
9399ae9a | 580 | } |
66530bdf | 581 | |
77b9900e JP |
582 | if (key->basic.n_proto == htons(ETH_P_IP) || |
583 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
584 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
585 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
586 | sizeof(key->basic.ip_proto)); | |
4d80cc0a | 587 | fl_set_key_ip(tb, &key->ip, &mask->ip); |
77b9900e | 588 | } |
66530bdf JHS |
589 | |
590 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
591 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 592 | mask->control.addr_type = ~0; |
77b9900e JP |
593 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
594 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
595 | sizeof(key->ipv4.src)); | |
596 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
597 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
598 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
599 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
600 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 601 | mask->control.addr_type = ~0; |
77b9900e JP |
602 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
603 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
604 | sizeof(key->ipv6.src)); | |
605 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
606 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
607 | sizeof(key->ipv6.dst)); | |
608 | } | |
66530bdf | 609 | |
77b9900e JP |
610 | if (key->basic.ip_proto == IPPROTO_TCP) { |
611 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 612 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
613 | sizeof(key->tp.src)); |
614 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 615 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 616 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
617 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
618 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
619 | sizeof(key->tcp.flags)); | |
77b9900e JP |
620 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
621 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 622 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
623 | sizeof(key->tp.src)); |
624 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 625 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 626 | sizeof(key->tp.dst)); |
5976c5f4 SH |
627 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
628 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
629 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
630 | sizeof(key->tp.src)); | |
631 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
632 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
633 | sizeof(key->tp.dst)); | |
7b684884 SH |
634 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
635 | key->basic.ip_proto == IPPROTO_ICMP) { | |
636 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
637 | &mask->icmp.type, | |
638 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
639 | sizeof(key->icmp.type)); | |
640 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
641 | &mask->icmp.code, | |
642 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
643 | sizeof(key->icmp.code)); | |
644 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
645 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
646 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
647 | &mask->icmp.type, | |
648 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
649 | sizeof(key->icmp.type)); | |
040587af | 650 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 651 | &mask->icmp.code, |
040587af | 652 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 653 | sizeof(key->icmp.code)); |
a577d8f7 BL |
654 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
655 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
656 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
657 | if (ret) | |
658 | return ret; | |
99d31326 SH |
659 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
660 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
661 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
662 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
663 | sizeof(key->arp.sip)); | |
664 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
665 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
666 | sizeof(key->arp.tip)); | |
667 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
668 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
669 | sizeof(key->arp.op)); | |
670 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
671 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
672 | sizeof(key->arp.sha)); | |
673 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
674 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
675 | sizeof(key->arp.tha)); | |
77b9900e JP |
676 | } |
677 | ||
bc3103f1 AV |
678 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
679 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
680 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 681 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
682 | fl_set_key_val(tb, &key->enc_ipv4.src, |
683 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
684 | &mask->enc_ipv4.src, | |
685 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
686 | sizeof(key->enc_ipv4.src)); | |
687 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
688 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
689 | &mask->enc_ipv4.dst, | |
690 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
691 | sizeof(key->enc_ipv4.dst)); | |
692 | } | |
693 | ||
694 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
695 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
696 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 697 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
698 | fl_set_key_val(tb, &key->enc_ipv6.src, |
699 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
700 | &mask->enc_ipv6.src, | |
701 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
702 | sizeof(key->enc_ipv6.src)); | |
703 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
704 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
705 | &mask->enc_ipv6.dst, | |
706 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
707 | sizeof(key->enc_ipv6.dst)); | |
708 | } | |
709 | ||
710 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 711 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
712 | sizeof(key->enc_key_id.keyid)); |
713 | ||
f4d997fd HHZ |
714 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
715 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
716 | sizeof(key->enc_tp.src)); | |
717 | ||
718 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
719 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
720 | sizeof(key->enc_tp.dst)); | |
721 | ||
d9724772 OG |
722 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
723 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 724 | |
d9724772 | 725 | return ret; |
77b9900e JP |
726 | } |
727 | ||
728 | static bool fl_mask_eq(struct fl_flow_mask *mask1, | |
729 | struct fl_flow_mask *mask2) | |
730 | { | |
731 | const long *lmask1 = fl_key_get_start(&mask1->key, mask1); | |
732 | const long *lmask2 = fl_key_get_start(&mask2->key, mask2); | |
733 | ||
734 | return !memcmp(&mask1->range, &mask2->range, sizeof(mask1->range)) && | |
735 | !memcmp(lmask1, lmask2, fl_mask_range(mask1)); | |
736 | } | |
737 | ||
738 | static const struct rhashtable_params fl_ht_params = { | |
739 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
740 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
741 | .automatic_shrinking = true, | |
742 | }; | |
743 | ||
744 | static int fl_init_hashtable(struct cls_fl_head *head, | |
745 | struct fl_flow_mask *mask) | |
746 | { | |
747 | head->ht_params = fl_ht_params; | |
748 | head->ht_params.key_len = fl_mask_range(mask); | |
749 | head->ht_params.key_offset += mask->range.start; | |
750 | ||
751 | return rhashtable_init(&head->ht, &head->ht_params); | |
752 | } | |
753 | ||
754 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
755 | #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member)) | |
77b9900e | 756 | |
339ba878 HHZ |
757 | #define FL_KEY_IS_MASKED(mask, member) \ |
758 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
759 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
760 | |
761 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
762 | do { \ | |
763 | keys[cnt].key_id = id; \ | |
764 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
765 | cnt++; \ | |
766 | } while(0); | |
767 | ||
339ba878 | 768 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 769 | do { \ |
339ba878 | 770 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
771 | FL_KEY_SET(keys, cnt, id, member); \ |
772 | } while(0); | |
773 | ||
774 | static void fl_init_dissector(struct cls_fl_head *head, | |
775 | struct fl_flow_mask *mask) | |
776 | { | |
777 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
778 | size_t cnt = 0; | |
779 | ||
42aecaa9 | 780 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 781 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
339ba878 HHZ |
782 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
783 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); | |
784 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
785 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); | |
786 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
787 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); | |
788 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
789 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
4d80cc0a OG |
790 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
791 | FLOW_DISSECTOR_KEY_IP, ip); | |
fdfc7dd6 JP |
792 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
793 | FLOW_DISSECTOR_KEY_TCP, tcp); | |
7b684884 SH |
794 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
795 | FLOW_DISSECTOR_KEY_ICMP, icmp); | |
99d31326 SH |
796 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
797 | FLOW_DISSECTOR_KEY_ARP, arp); | |
a577d8f7 BL |
798 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
799 | FLOW_DISSECTOR_KEY_MPLS, mpls); | |
9399ae9a HHZ |
800 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
801 | FLOW_DISSECTOR_KEY_VLAN, vlan); | |
519d1052 HHZ |
802 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
803 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); | |
804 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
805 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); | |
806 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
807 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); | |
808 | if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) || | |
809 | FL_KEY_IS_MASKED(&mask->key, enc_ipv6)) | |
810 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
811 | enc_control); | |
f4d997fd HHZ |
812 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
813 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); | |
77b9900e JP |
814 | |
815 | skb_flow_dissector_init(&head->dissector, keys, cnt); | |
816 | } | |
817 | ||
818 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
819 | struct fl_flow_mask *mask) | |
820 | { | |
821 | int err; | |
822 | ||
823 | if (head->mask_assigned) { | |
824 | if (!fl_mask_eq(&head->mask, mask)) | |
825 | return -EINVAL; | |
826 | else | |
827 | return 0; | |
828 | } | |
829 | ||
830 | /* Mask is not assigned yet. So assign it and init hashtable | |
831 | * according to that. | |
832 | */ | |
833 | err = fl_init_hashtable(head, mask); | |
834 | if (err) | |
835 | return err; | |
836 | memcpy(&head->mask, mask, sizeof(head->mask)); | |
837 | head->mask_assigned = true; | |
838 | ||
839 | fl_init_dissector(head, mask); | |
840 | ||
841 | return 0; | |
842 | } | |
843 | ||
844 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
845 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
846 | unsigned long base, struct nlattr **tb, | |
847 | struct nlattr *est, bool ovr) | |
848 | { | |
77b9900e JP |
849 | int err; |
850 | ||
45507529 | 851 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr); |
77b9900e JP |
852 | if (err < 0) |
853 | return err; | |
854 | ||
855 | if (tb[TCA_FLOWER_CLASSID]) { | |
856 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
857 | tcf_bind_filter(tp, &f->res, base); | |
858 | } | |
859 | ||
860 | err = fl_set_key(net, tb, &f->key, &mask->key); | |
861 | if (err) | |
45507529 | 862 | return err; |
77b9900e JP |
863 | |
864 | fl_mask_update_range(mask); | |
865 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
866 | ||
77b9900e | 867 | return 0; |
77b9900e JP |
868 | } |
869 | ||
870 | static u32 fl_grab_new_handle(struct tcf_proto *tp, | |
871 | struct cls_fl_head *head) | |
872 | { | |
873 | unsigned int i = 0x80000000; | |
874 | u32 handle; | |
875 | ||
876 | do { | |
877 | if (++head->hgen == 0x7FFFFFFF) | |
878 | head->hgen = 1; | |
879 | } while (--i > 0 && fl_get(tp, head->hgen)); | |
880 | ||
881 | if (unlikely(i == 0)) { | |
882 | pr_err("Insufficient number of handles\n"); | |
883 | handle = 0; | |
884 | } else { | |
885 | handle = head->hgen; | |
886 | } | |
887 | ||
888 | return handle; | |
889 | } | |
890 | ||
891 | static int fl_change(struct net *net, struct sk_buff *in_skb, | |
892 | struct tcf_proto *tp, unsigned long base, | |
893 | u32 handle, struct nlattr **tca, | |
894 | unsigned long *arg, bool ovr) | |
895 | { | |
896 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
897 | struct cls_fl_filter *fold = (struct cls_fl_filter *) *arg; | |
898 | struct cls_fl_filter *fnew; | |
39b7b6a6 | 899 | struct nlattr **tb; |
77b9900e JP |
900 | struct fl_flow_mask mask = {}; |
901 | int err; | |
902 | ||
903 | if (!tca[TCA_OPTIONS]) | |
904 | return -EINVAL; | |
905 | ||
39b7b6a6 AB |
906 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
907 | if (!tb) | |
908 | return -ENOBUFS; | |
909 | ||
fceb6435 JB |
910 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
911 | fl_policy, NULL); | |
77b9900e | 912 | if (err < 0) |
39b7b6a6 | 913 | goto errout_tb; |
77b9900e | 914 | |
39b7b6a6 AB |
915 | if (fold && handle && fold->handle != handle) { |
916 | err = -EINVAL; | |
917 | goto errout_tb; | |
918 | } | |
77b9900e JP |
919 | |
920 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
921 | if (!fnew) { |
922 | err = -ENOBUFS; | |
923 | goto errout_tb; | |
924 | } | |
77b9900e | 925 | |
b9a24bb7 WC |
926 | err = tcf_exts_init(&fnew->exts, TCA_FLOWER_ACT, 0); |
927 | if (err < 0) | |
928 | goto errout; | |
77b9900e JP |
929 | |
930 | if (!handle) { | |
931 | handle = fl_grab_new_handle(tp, head); | |
932 | if (!handle) { | |
933 | err = -EINVAL; | |
934 | goto errout; | |
935 | } | |
936 | } | |
937 | fnew->handle = handle; | |
938 | ||
e69985c6 AV |
939 | if (tb[TCA_FLOWER_FLAGS]) { |
940 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
941 | ||
942 | if (!tc_flags_valid(fnew->flags)) { | |
943 | err = -EINVAL; | |
944 | goto errout; | |
945 | } | |
946 | } | |
5b33f488 | 947 | |
77b9900e JP |
948 | err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr); |
949 | if (err) | |
950 | goto errout; | |
951 | ||
952 | err = fl_check_assign_mask(head, &mask); | |
953 | if (err) | |
954 | goto errout; | |
955 | ||
e8eb36cd | 956 | if (!tc_skip_sw(fnew->flags)) { |
a3308d8f PB |
957 | if (!fold && fl_lookup(head, &fnew->mkey)) { |
958 | err = -EEXIST; | |
959 | goto errout; | |
960 | } | |
961 | ||
e69985c6 AV |
962 | err = rhashtable_insert_fast(&head->ht, &fnew->ht_node, |
963 | head->ht_params); | |
964 | if (err) | |
965 | goto errout; | |
966 | } | |
5b33f488 | 967 | |
79685219 HHZ |
968 | if (!tc_skip_hw(fnew->flags)) { |
969 | err = fl_hw_replace_filter(tp, | |
970 | &head->dissector, | |
971 | &mask.key, | |
3036dab6 | 972 | fnew); |
79685219 HHZ |
973 | if (err) |
974 | goto errout; | |
975 | } | |
5b33f488 | 976 | |
55593960 OG |
977 | if (!tc_in_hw(fnew->flags)) |
978 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
979 | ||
5b33f488 | 980 | if (fold) { |
725cbb62 JP |
981 | if (!tc_skip_sw(fold->flags)) |
982 | rhashtable_remove_fast(&head->ht, &fold->ht_node, | |
983 | head->ht_params); | |
79685219 | 984 | if (!tc_skip_hw(fold->flags)) |
3036dab6 | 985 | fl_hw_destroy_filter(tp, fold); |
5b33f488 | 986 | } |
77b9900e JP |
987 | |
988 | *arg = (unsigned long) fnew; | |
989 | ||
990 | if (fold) { | |
ff3532f2 | 991 | list_replace_rcu(&fold->list, &fnew->list); |
77b9900e JP |
992 | tcf_unbind_filter(tp, &fold->res); |
993 | call_rcu(&fold->rcu, fl_destroy_filter); | |
994 | } else { | |
995 | list_add_tail_rcu(&fnew->list, &head->filters); | |
996 | } | |
997 | ||
39b7b6a6 | 998 | kfree(tb); |
77b9900e JP |
999 | return 0; |
1000 | ||
1001 | errout: | |
b9a24bb7 | 1002 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 1003 | kfree(fnew); |
39b7b6a6 AB |
1004 | errout_tb: |
1005 | kfree(tb); | |
77b9900e JP |
1006 | return err; |
1007 | } | |
1008 | ||
763dbf63 | 1009 | static int fl_delete(struct tcf_proto *tp, unsigned long arg, bool *last) |
77b9900e JP |
1010 | { |
1011 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1012 | struct cls_fl_filter *f = (struct cls_fl_filter *) arg; | |
1013 | ||
725cbb62 JP |
1014 | if (!tc_skip_sw(f->flags)) |
1015 | rhashtable_remove_fast(&head->ht, &f->ht_node, | |
1016 | head->ht_params); | |
13fa876e | 1017 | __fl_delete(tp, f); |
763dbf63 | 1018 | *last = list_empty(&head->filters); |
77b9900e JP |
1019 | return 0; |
1020 | } | |
1021 | ||
1022 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg) | |
1023 | { | |
1024 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1025 | struct cls_fl_filter *f; | |
1026 | ||
1027 | list_for_each_entry_rcu(f, &head->filters, list) { | |
1028 | if (arg->count < arg->skip) | |
1029 | goto skip; | |
1030 | if (arg->fn(tp, (unsigned long) f, arg) < 0) { | |
1031 | arg->stop = 1; | |
1032 | break; | |
1033 | } | |
1034 | skip: | |
1035 | arg->count++; | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | static int fl_dump_key_val(struct sk_buff *skb, | |
1040 | void *val, int val_type, | |
1041 | void *mask, int mask_type, int len) | |
1042 | { | |
1043 | int err; | |
1044 | ||
1045 | if (!memchr_inv(mask, 0, len)) | |
1046 | return 0; | |
1047 | err = nla_put(skb, val_type, len, val); | |
1048 | if (err) | |
1049 | return err; | |
1050 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1051 | err = nla_put(skb, mask_type, len, mask); | |
1052 | if (err) | |
1053 | return err; | |
1054 | } | |
1055 | return 0; | |
1056 | } | |
1057 | ||
a577d8f7 BL |
1058 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1059 | struct flow_dissector_key_mpls *mpls_key, | |
1060 | struct flow_dissector_key_mpls *mpls_mask) | |
1061 | { | |
1062 | int err; | |
1063 | ||
1064 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1065 | return 0; | |
1066 | if (mpls_mask->mpls_ttl) { | |
1067 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1068 | mpls_key->mpls_ttl); | |
1069 | if (err) | |
1070 | return err; | |
1071 | } | |
1072 | if (mpls_mask->mpls_tc) { | |
1073 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1074 | mpls_key->mpls_tc); | |
1075 | if (err) | |
1076 | return err; | |
1077 | } | |
1078 | if (mpls_mask->mpls_label) { | |
1079 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1080 | mpls_key->mpls_label); | |
1081 | if (err) | |
1082 | return err; | |
1083 | } | |
1084 | if (mpls_mask->mpls_bos) { | |
1085 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1086 | mpls_key->mpls_bos); | |
1087 | if (err) | |
1088 | return err; | |
1089 | } | |
1090 | return 0; | |
1091 | } | |
1092 | ||
4d80cc0a OG |
1093 | static int fl_dump_key_ip(struct sk_buff *skb, |
1094 | struct flow_dissector_key_ip *key, | |
1095 | struct flow_dissector_key_ip *mask) | |
1096 | { | |
1097 | if (fl_dump_key_val(skb, &key->tos, TCA_FLOWER_KEY_IP_TOS, &mask->tos, | |
1098 | TCA_FLOWER_KEY_IP_TOS_MASK, sizeof(key->tos)) || | |
1099 | fl_dump_key_val(skb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, &mask->ttl, | |
1100 | TCA_FLOWER_KEY_IP_TTL_MASK, sizeof(key->ttl))) | |
1101 | return -1; | |
1102 | ||
1103 | return 0; | |
1104 | } | |
1105 | ||
9399ae9a HHZ |
1106 | static int fl_dump_key_vlan(struct sk_buff *skb, |
1107 | struct flow_dissector_key_vlan *vlan_key, | |
1108 | struct flow_dissector_key_vlan *vlan_mask) | |
1109 | { | |
1110 | int err; | |
1111 | ||
1112 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1113 | return 0; | |
1114 | if (vlan_mask->vlan_id) { | |
1115 | err = nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ID, | |
1116 | vlan_key->vlan_id); | |
1117 | if (err) | |
1118 | return err; | |
1119 | } | |
1120 | if (vlan_mask->vlan_priority) { | |
1121 | err = nla_put_u8(skb, TCA_FLOWER_KEY_VLAN_PRIO, | |
1122 | vlan_key->vlan_priority); | |
1123 | if (err) | |
1124 | return err; | |
1125 | } | |
1126 | return 0; | |
1127 | } | |
1128 | ||
faa3ffce OG |
1129 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1130 | u32 *flower_key, u32 *flower_mask, | |
1131 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1132 | { | |
1133 | if (dissector_mask & dissector_flag_bit) { | |
1134 | *flower_mask |= flower_flag_bit; | |
1135 | if (dissector_key & dissector_flag_bit) | |
1136 | *flower_key |= flower_flag_bit; | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1141 | { | |
1142 | u32 key, mask; | |
1143 | __be32 _key, _mask; | |
1144 | int err; | |
1145 | ||
1146 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1147 | return 0; | |
1148 | ||
1149 | key = 0; | |
1150 | mask = 0; | |
1151 | ||
1152 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1153 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
1154 | ||
1155 | _key = cpu_to_be32(key); | |
1156 | _mask = cpu_to_be32(mask); | |
1157 | ||
1158 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1159 | if (err) | |
1160 | return err; | |
1161 | ||
1162 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1163 | } | |
1164 | ||
77b9900e JP |
1165 | static int fl_dump(struct net *net, struct tcf_proto *tp, unsigned long fh, |
1166 | struct sk_buff *skb, struct tcmsg *t) | |
1167 | { | |
1168 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
1169 | struct cls_fl_filter *f = (struct cls_fl_filter *) fh; | |
1170 | struct nlattr *nest; | |
1171 | struct fl_flow_key *key, *mask; | |
1172 | ||
1173 | if (!f) | |
1174 | return skb->len; | |
1175 | ||
1176 | t->tcm_handle = f->handle; | |
1177 | ||
1178 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
1179 | if (!nest) | |
1180 | goto nla_put_failure; | |
1181 | ||
1182 | if (f->res.classid && | |
1183 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
1184 | goto nla_put_failure; | |
1185 | ||
1186 | key = &f->key; | |
1187 | mask = &head->mask.key; | |
1188 | ||
1189 | if (mask->indev_ifindex) { | |
1190 | struct net_device *dev; | |
1191 | ||
1192 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1193 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1194 | goto nla_put_failure; | |
1195 | } | |
1196 | ||
79685219 HHZ |
1197 | if (!tc_skip_hw(f->flags)) |
1198 | fl_hw_update_stats(tp, f); | |
10cbc684 | 1199 | |
77b9900e JP |
1200 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, |
1201 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1202 | sizeof(key->eth.dst)) || | |
1203 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1204 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1205 | sizeof(key->eth.src)) || | |
1206 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1207 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1208 | sizeof(key->basic.n_proto))) | |
1209 | goto nla_put_failure; | |
9399ae9a | 1210 | |
a577d8f7 BL |
1211 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1212 | goto nla_put_failure; | |
1213 | ||
9399ae9a HHZ |
1214 | if (fl_dump_key_vlan(skb, &key->vlan, &mask->vlan)) |
1215 | goto nla_put_failure; | |
1216 | ||
77b9900e JP |
1217 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
1218 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 1219 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 1220 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a OG |
1221 | sizeof(key->basic.ip_proto)) || |
1222 | fl_dump_key_ip(skb, &key->ip, &mask->ip))) | |
77b9900e JP |
1223 | goto nla_put_failure; |
1224 | ||
c3f83241 | 1225 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
1226 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1227 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1228 | sizeof(key->ipv4.src)) || | |
1229 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1230 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1231 | sizeof(key->ipv4.dst)))) | |
1232 | goto nla_put_failure; | |
c3f83241 | 1233 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
1234 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1235 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1236 | sizeof(key->ipv6.src)) || | |
1237 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1238 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1239 | sizeof(key->ipv6.dst)))) | |
1240 | goto nla_put_failure; | |
1241 | ||
1242 | if (key->basic.ip_proto == IPPROTO_TCP && | |
1243 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1244 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1245 | sizeof(key->tp.src)) || |
1246 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1247 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
1248 | sizeof(key->tp.dst)) || |
1249 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
1250 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1251 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
1252 | goto nla_put_failure; |
1253 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
1254 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1255 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1256 | sizeof(key->tp.src)) || |
1257 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1258 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
1259 | sizeof(key->tp.dst)))) |
1260 | goto nla_put_failure; | |
1261 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
1262 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1263 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1264 | sizeof(key->tp.src)) || | |
1265 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1266 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
1267 | sizeof(key->tp.dst)))) |
1268 | goto nla_put_failure; | |
7b684884 SH |
1269 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
1270 | key->basic.ip_proto == IPPROTO_ICMP && | |
1271 | (fl_dump_key_val(skb, &key->icmp.type, | |
1272 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
1273 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1274 | sizeof(key->icmp.type)) || | |
1275 | fl_dump_key_val(skb, &key->icmp.code, | |
1276 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
1277 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1278 | sizeof(key->icmp.code)))) | |
1279 | goto nla_put_failure; | |
1280 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1281 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
1282 | (fl_dump_key_val(skb, &key->icmp.type, | |
1283 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
1284 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1285 | sizeof(key->icmp.type)) || | |
1286 | fl_dump_key_val(skb, &key->icmp.code, | |
1287 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
1288 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
1289 | sizeof(key->icmp.code)))) | |
1290 | goto nla_put_failure; | |
99d31326 SH |
1291 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
1292 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
1293 | (fl_dump_key_val(skb, &key->arp.sip, | |
1294 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
1295 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1296 | sizeof(key->arp.sip)) || | |
1297 | fl_dump_key_val(skb, &key->arp.tip, | |
1298 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
1299 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1300 | sizeof(key->arp.tip)) || | |
1301 | fl_dump_key_val(skb, &key->arp.op, | |
1302 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
1303 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
1304 | sizeof(key->arp.op)) || | |
1305 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1306 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1307 | sizeof(key->arp.sha)) || | |
1308 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1309 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1310 | sizeof(key->arp.tha)))) | |
1311 | goto nla_put_failure; | |
77b9900e | 1312 | |
bc3103f1 AV |
1313 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
1314 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
1315 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
1316 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1317 | sizeof(key->enc_ipv4.src)) || | |
1318 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
1319 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
1320 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1321 | sizeof(key->enc_ipv4.dst)))) | |
1322 | goto nla_put_failure; | |
1323 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
1324 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
1325 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
1326 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1327 | sizeof(key->enc_ipv6.src)) || | |
1328 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
1329 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1330 | &mask->enc_ipv6.dst, | |
1331 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1332 | sizeof(key->enc_ipv6.dst)))) | |
1333 | goto nla_put_failure; | |
1334 | ||
1335 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1336 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
1337 | sizeof(key->enc_key_id)) || |
1338 | fl_dump_key_val(skb, &key->enc_tp.src, | |
1339 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
1340 | &mask->enc_tp.src, | |
1341 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1342 | sizeof(key->enc_tp.src)) || | |
1343 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
1344 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1345 | &mask->enc_tp.dst, | |
1346 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1347 | sizeof(key->enc_tp.dst))) | |
bc3103f1 AV |
1348 | goto nla_put_failure; |
1349 | ||
faa3ffce OG |
1350 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
1351 | goto nla_put_failure; | |
1352 | ||
749e6720 OG |
1353 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
1354 | goto nla_put_failure; | |
e69985c6 | 1355 | |
77b9900e JP |
1356 | if (tcf_exts_dump(skb, &f->exts)) |
1357 | goto nla_put_failure; | |
1358 | ||
1359 | nla_nest_end(skb, nest); | |
1360 | ||
1361 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
1362 | goto nla_put_failure; | |
1363 | ||
1364 | return skb->len; | |
1365 | ||
1366 | nla_put_failure: | |
1367 | nla_nest_cancel(skb, nest); | |
1368 | return -1; | |
1369 | } | |
1370 | ||
1371 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { | |
1372 | .kind = "flower", | |
1373 | .classify = fl_classify, | |
1374 | .init = fl_init, | |
1375 | .destroy = fl_destroy, | |
1376 | .get = fl_get, | |
1377 | .change = fl_change, | |
1378 | .delete = fl_delete, | |
1379 | .walk = fl_walk, | |
1380 | .dump = fl_dump, | |
1381 | .owner = THIS_MODULE, | |
1382 | }; | |
1383 | ||
1384 | static int __init cls_fl_init(void) | |
1385 | { | |
1386 | return register_tcf_proto_ops(&cls_fl_ops); | |
1387 | } | |
1388 | ||
1389 | static void __exit cls_fl_exit(void) | |
1390 | { | |
1391 | unregister_tcf_proto_ops(&cls_fl_ops); | |
1392 | } | |
1393 | ||
1394 | module_init(cls_fl_init); | |
1395 | module_exit(cls_fl_exit); | |
1396 | ||
1397 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
1398 | MODULE_DESCRIPTION("Flower classifier"); | |
1399 | MODULE_LICENSE("GPL v2"); |