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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; | |
7afe8e4f | 74 | struct rcu_work rwork; |
c15ab236 | 75 | struct idr handle_idr; |
77b9900e JP |
76 | }; |
77 | ||
78 | struct cls_fl_filter { | |
79 | struct rhash_head ht_node; | |
80 | struct fl_flow_key mkey; | |
81 | struct tcf_exts exts; | |
82 | struct tcf_result res; | |
83 | struct fl_flow_key key; | |
84 | struct list_head list; | |
85 | u32 handle; | |
e69985c6 | 86 | u32 flags; |
7afe8e4f | 87 | struct rcu_work rwork; |
7091d8c7 | 88 | struct net_device *hw_dev; |
77b9900e JP |
89 | }; |
90 | ||
91 | static unsigned short int fl_mask_range(const struct fl_flow_mask *mask) | |
92 | { | |
93 | return mask->range.end - mask->range.start; | |
94 | } | |
95 | ||
96 | static void fl_mask_update_range(struct fl_flow_mask *mask) | |
97 | { | |
98 | const u8 *bytes = (const u8 *) &mask->key; | |
99 | size_t size = sizeof(mask->key); | |
100 | size_t i, first = 0, last = size - 1; | |
101 | ||
102 | for (i = 0; i < sizeof(mask->key); i++) { | |
103 | if (bytes[i]) { | |
104 | if (!first && i) | |
105 | first = i; | |
106 | last = i; | |
107 | } | |
108 | } | |
109 | mask->range.start = rounddown(first, sizeof(long)); | |
110 | mask->range.end = roundup(last + 1, sizeof(long)); | |
111 | } | |
112 | ||
113 | static void *fl_key_get_start(struct fl_flow_key *key, | |
114 | const struct fl_flow_mask *mask) | |
115 | { | |
116 | return (u8 *) key + mask->range.start; | |
117 | } | |
118 | ||
119 | static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key, | |
120 | struct fl_flow_mask *mask) | |
121 | { | |
122 | const long *lkey = fl_key_get_start(key, mask); | |
123 | const long *lmask = fl_key_get_start(&mask->key, mask); | |
124 | long *lmkey = fl_key_get_start(mkey, mask); | |
125 | int i; | |
126 | ||
127 | for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) | |
128 | *lmkey++ = *lkey++ & *lmask++; | |
129 | } | |
130 | ||
131 | static void fl_clear_masked_range(struct fl_flow_key *key, | |
132 | struct fl_flow_mask *mask) | |
133 | { | |
134 | memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask)); | |
135 | } | |
136 | ||
a3308d8f PB |
137 | static struct cls_fl_filter *fl_lookup(struct cls_fl_head *head, |
138 | struct fl_flow_key *mkey) | |
139 | { | |
140 | return rhashtable_lookup_fast(&head->ht, | |
141 | fl_key_get_start(mkey, &head->mask), | |
142 | head->ht_params); | |
143 | } | |
144 | ||
77b9900e JP |
145 | static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp, |
146 | struct tcf_result *res) | |
147 | { | |
148 | struct cls_fl_head *head = rcu_dereference_bh(tp->root); | |
149 | struct cls_fl_filter *f; | |
150 | struct fl_flow_key skb_key; | |
151 | struct fl_flow_key skb_mkey; | |
152 | ||
e69985c6 AV |
153 | if (!atomic_read(&head->ht.nelems)) |
154 | return -1; | |
155 | ||
77b9900e | 156 | fl_clear_masked_range(&skb_key, &head->mask); |
bc3103f1 | 157 | |
77b9900e JP |
158 | skb_key.indev_ifindex = skb->skb_iif; |
159 | /* skb_flow_dissect() does not set n_proto in case an unknown protocol, | |
160 | * so do it rather here. | |
161 | */ | |
162 | skb_key.basic.n_proto = skb->protocol; | |
cd79a238 | 163 | skb_flow_dissect(skb, &head->dissector, &skb_key, 0); |
77b9900e JP |
164 | |
165 | fl_set_masked_key(&skb_mkey, &skb_key, &head->mask); | |
166 | ||
a3308d8f | 167 | f = fl_lookup(head, &skb_mkey); |
e8eb36cd | 168 | if (f && !tc_skip_sw(f->flags)) { |
77b9900e JP |
169 | *res = f->res; |
170 | return tcf_exts_exec(skb, &f->exts, res); | |
171 | } | |
172 | return -1; | |
173 | } | |
174 | ||
175 | static int fl_init(struct tcf_proto *tp) | |
176 | { | |
177 | struct cls_fl_head *head; | |
178 | ||
179 | head = kzalloc(sizeof(*head), GFP_KERNEL); | |
180 | if (!head) | |
181 | return -ENOBUFS; | |
182 | ||
183 | INIT_LIST_HEAD_RCU(&head->filters); | |
184 | rcu_assign_pointer(tp->root, head); | |
c15ab236 | 185 | idr_init(&head->handle_idr); |
77b9900e JP |
186 | |
187 | return 0; | |
188 | } | |
189 | ||
0dadc117 CW |
190 | static void __fl_destroy_filter(struct cls_fl_filter *f) |
191 | { | |
192 | tcf_exts_destroy(&f->exts); | |
193 | tcf_exts_put_net(&f->exts); | |
194 | kfree(f); | |
195 | } | |
196 | ||
0552c8af | 197 | static void fl_destroy_filter_work(struct work_struct *work) |
77b9900e | 198 | { |
7afe8e4f CW |
199 | struct cls_fl_filter *f = container_of(to_rcu_work(work), |
200 | struct cls_fl_filter, rwork); | |
77b9900e | 201 | |
0552c8af | 202 | rtnl_lock(); |
0dadc117 | 203 | __fl_destroy_filter(f); |
0552c8af CW |
204 | rtnl_unlock(); |
205 | } | |
206 | ||
3036dab6 | 207 | static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f) |
5b33f488 | 208 | { |
de4784ca | 209 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 210 | struct tcf_block *block = tp->chain->block; |
5b33f488 | 211 | |
de4784ca JP |
212 | tc_cls_common_offload_init(&cls_flower.common, tp); |
213 | cls_flower.command = TC_CLSFLOWER_DESTROY; | |
214 | cls_flower.cookie = (unsigned long) f; | |
5b33f488 | 215 | |
208c0f4b | 216 | tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 | 217 | &cls_flower, false); |
5b33f488 AV |
218 | } |
219 | ||
e8eb36cd AV |
220 | static int fl_hw_replace_filter(struct tcf_proto *tp, |
221 | struct flow_dissector *dissector, | |
222 | struct fl_flow_key *mask, | |
3036dab6 | 223 | struct cls_fl_filter *f) |
5b33f488 | 224 | { |
de4784ca | 225 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 226 | struct tcf_block *block = tp->chain->block; |
717503b9 | 227 | bool skip_sw = tc_skip_sw(f->flags); |
e8eb36cd | 228 | int err; |
5b33f488 | 229 | |
de4784ca JP |
230 | tc_cls_common_offload_init(&cls_flower.common, tp); |
231 | cls_flower.command = TC_CLSFLOWER_REPLACE; | |
232 | cls_flower.cookie = (unsigned long) f; | |
233 | cls_flower.dissector = dissector; | |
234 | cls_flower.mask = mask; | |
235 | cls_flower.key = &f->mkey; | |
236 | cls_flower.exts = &f->exts; | |
384c181e | 237 | cls_flower.classid = f->res.classid; |
5b33f488 | 238 | |
208c0f4b | 239 | err = tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 JP |
240 | &cls_flower, skip_sw); |
241 | if (err < 0) { | |
242 | fl_hw_destroy_filter(tp, f); | |
e8eb36cd | 243 | return err; |
717503b9 JP |
244 | } else if (err > 0) { |
245 | f->flags |= TCA_CLS_FLAGS_IN_HW; | |
246 | } | |
247 | ||
248 | if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW)) | |
249 | return -EINVAL; | |
250 | ||
e8eb36cd | 251 | return 0; |
5b33f488 AV |
252 | } |
253 | ||
10cbc684 AV |
254 | static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f) |
255 | { | |
de4784ca | 256 | struct tc_cls_flower_offload cls_flower = {}; |
208c0f4b | 257 | struct tcf_block *block = tp->chain->block; |
10cbc684 | 258 | |
de4784ca JP |
259 | tc_cls_common_offload_init(&cls_flower.common, tp); |
260 | cls_flower.command = TC_CLSFLOWER_STATS; | |
261 | cls_flower.cookie = (unsigned long) f; | |
262 | cls_flower.exts = &f->exts; | |
384c181e | 263 | cls_flower.classid = f->res.classid; |
10cbc684 | 264 | |
208c0f4b | 265 | tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER, |
717503b9 | 266 | &cls_flower, false); |
10cbc684 AV |
267 | } |
268 | ||
13fa876e RD |
269 | static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f) |
270 | { | |
c15ab236 CM |
271 | struct cls_fl_head *head = rtnl_dereference(tp->root); |
272 | ||
273 | idr_remove_ext(&head->handle_idr, f->handle); | |
13fa876e | 274 | list_del_rcu(&f->list); |
79685219 | 275 | if (!tc_skip_hw(f->flags)) |
3036dab6 | 276 | fl_hw_destroy_filter(tp, f); |
13fa876e | 277 | tcf_unbind_filter(tp, &f->res); |
0dadc117 | 278 | if (tcf_exts_get_net(&f->exts)) |
7afe8e4f | 279 | tcf_queue_work(&f->rwork, fl_destroy_filter_work); |
0dadc117 CW |
280 | else |
281 | __fl_destroy_filter(f); | |
13fa876e RD |
282 | } |
283 | ||
d9363774 DB |
284 | static void fl_destroy_sleepable(struct work_struct *work) |
285 | { | |
7afe8e4f CW |
286 | struct cls_fl_head *head = container_of(to_rcu_work(work), |
287 | struct cls_fl_head, | |
288 | rwork); | |
d9363774 DB |
289 | if (head->mask_assigned) |
290 | rhashtable_destroy(&head->ht); | |
291 | kfree(head); | |
292 | module_put(THIS_MODULE); | |
293 | } | |
294 | ||
763dbf63 | 295 | static void fl_destroy(struct tcf_proto *tp) |
77b9900e JP |
296 | { |
297 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
298 | struct cls_fl_filter *f, *next; | |
299 | ||
13fa876e RD |
300 | list_for_each_entry_safe(f, next, &head->filters, list) |
301 | __fl_delete(tp, f); | |
c15ab236 | 302 | idr_destroy(&head->handle_idr); |
d9363774 DB |
303 | |
304 | __module_get(THIS_MODULE); | |
7afe8e4f | 305 | tcf_queue_work(&head->rwork, fl_destroy_sleepable); |
77b9900e JP |
306 | } |
307 | ||
8113c095 | 308 | static void *fl_get(struct tcf_proto *tp, u32 handle) |
77b9900e JP |
309 | { |
310 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
77b9900e | 311 | |
c15ab236 | 312 | return idr_find_ext(&head->handle_idr, handle); |
77b9900e JP |
313 | } |
314 | ||
315 | static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = { | |
316 | [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC }, | |
317 | [TCA_FLOWER_CLASSID] = { .type = NLA_U32 }, | |
318 | [TCA_FLOWER_INDEV] = { .type = NLA_STRING, | |
319 | .len = IFNAMSIZ }, | |
320 | [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN }, | |
321 | [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN }, | |
322 | [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN }, | |
323 | [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN }, | |
324 | [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 }, | |
325 | [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 }, | |
326 | [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 }, | |
327 | [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
328 | [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 }, | |
329 | [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
330 | [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
331 | [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
332 | [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
333 | [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
334 | [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 }, | |
335 | [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 }, | |
b175c3a4 JHS |
336 | [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 }, |
337 | [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 }, | |
9399ae9a HHZ |
338 | [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 }, |
339 | [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 }, | |
340 | [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 }, | |
bc3103f1 AV |
341 | [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 }, |
342 | [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 }, | |
343 | [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 }, | |
344 | [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 }, | |
345 | [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 }, | |
346 | [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) }, | |
347 | [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) }, | |
348 | [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) }, | |
349 | [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) }, | |
aa72d708 OG |
350 | [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 }, |
351 | [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 }, | |
352 | [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 }, | |
353 | [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 }, | |
5976c5f4 SH |
354 | [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 }, |
355 | [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 }, | |
356 | [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 }, | |
357 | [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 }, | |
f4d997fd HHZ |
358 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 }, |
359 | [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 }, | |
360 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 }, | |
361 | [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 }, | |
faa3ffce OG |
362 | [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 }, |
363 | [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 }, | |
7b684884 SH |
364 | [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 }, |
365 | [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 }, | |
366 | [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 }, | |
367 | [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 }, | |
368 | [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 }, | |
369 | [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 }, | |
370 | [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 }, | |
371 | [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 }, | |
99d31326 SH |
372 | [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 }, |
373 | [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 }, | |
374 | [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 }, | |
375 | [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 }, | |
376 | [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 }, | |
377 | [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 }, | |
378 | [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN }, | |
379 | [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN }, | |
380 | [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN }, | |
381 | [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN }, | |
a577d8f7 BL |
382 | [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 }, |
383 | [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 }, | |
384 | [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 }, | |
385 | [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 }, | |
fdfc7dd6 JP |
386 | [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 }, |
387 | [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 }, | |
4d80cc0a OG |
388 | [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 }, |
389 | [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 }, | |
390 | [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 }, | |
391 | [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 }, | |
77b9900e JP |
392 | }; |
393 | ||
394 | static void fl_set_key_val(struct nlattr **tb, | |
395 | void *val, int val_type, | |
396 | void *mask, int mask_type, int len) | |
397 | { | |
398 | if (!tb[val_type]) | |
399 | return; | |
400 | memcpy(val, nla_data(tb[val_type]), len); | |
401 | if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type]) | |
402 | memset(mask, 0xff, len); | |
403 | else | |
404 | memcpy(mask, nla_data(tb[mask_type]), len); | |
405 | } | |
406 | ||
1a7fca63 BL |
407 | static int fl_set_key_mpls(struct nlattr **tb, |
408 | struct flow_dissector_key_mpls *key_val, | |
409 | struct flow_dissector_key_mpls *key_mask) | |
a577d8f7 BL |
410 | { |
411 | if (tb[TCA_FLOWER_KEY_MPLS_TTL]) { | |
412 | key_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]); | |
413 | key_mask->mpls_ttl = MPLS_TTL_MASK; | |
414 | } | |
415 | if (tb[TCA_FLOWER_KEY_MPLS_BOS]) { | |
1a7fca63 BL |
416 | u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]); |
417 | ||
418 | if (bos & ~MPLS_BOS_MASK) | |
419 | return -EINVAL; | |
420 | key_val->mpls_bos = bos; | |
a577d8f7 BL |
421 | key_mask->mpls_bos = MPLS_BOS_MASK; |
422 | } | |
423 | if (tb[TCA_FLOWER_KEY_MPLS_TC]) { | |
1a7fca63 BL |
424 | u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]); |
425 | ||
426 | if (tc & ~MPLS_TC_MASK) | |
427 | return -EINVAL; | |
428 | key_val->mpls_tc = tc; | |
a577d8f7 BL |
429 | key_mask->mpls_tc = MPLS_TC_MASK; |
430 | } | |
431 | if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) { | |
1a7fca63 BL |
432 | u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]); |
433 | ||
434 | if (label & ~MPLS_LABEL_MASK) | |
435 | return -EINVAL; | |
436 | key_val->mpls_label = label; | |
a577d8f7 BL |
437 | key_mask->mpls_label = MPLS_LABEL_MASK; |
438 | } | |
1a7fca63 | 439 | return 0; |
a577d8f7 BL |
440 | } |
441 | ||
9399ae9a HHZ |
442 | static void fl_set_key_vlan(struct nlattr **tb, |
443 | struct flow_dissector_key_vlan *key_val, | |
444 | struct flow_dissector_key_vlan *key_mask) | |
445 | { | |
446 | #define VLAN_PRIORITY_MASK 0x7 | |
447 | ||
448 | if (tb[TCA_FLOWER_KEY_VLAN_ID]) { | |
449 | key_val->vlan_id = | |
450 | nla_get_u16(tb[TCA_FLOWER_KEY_VLAN_ID]) & VLAN_VID_MASK; | |
451 | key_mask->vlan_id = VLAN_VID_MASK; | |
452 | } | |
453 | if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) { | |
454 | key_val->vlan_priority = | |
455 | nla_get_u8(tb[TCA_FLOWER_KEY_VLAN_PRIO]) & | |
456 | VLAN_PRIORITY_MASK; | |
457 | key_mask->vlan_priority = VLAN_PRIORITY_MASK; | |
458 | } | |
459 | } | |
460 | ||
faa3ffce OG |
461 | static void fl_set_key_flag(u32 flower_key, u32 flower_mask, |
462 | u32 *dissector_key, u32 *dissector_mask, | |
463 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
464 | { | |
465 | if (flower_mask & flower_flag_bit) { | |
466 | *dissector_mask |= dissector_flag_bit; | |
467 | if (flower_key & flower_flag_bit) | |
468 | *dissector_key |= dissector_flag_bit; | |
469 | } | |
470 | } | |
471 | ||
d9724772 OG |
472 | static int fl_set_key_flags(struct nlattr **tb, |
473 | u32 *flags_key, u32 *flags_mask) | |
faa3ffce OG |
474 | { |
475 | u32 key, mask; | |
476 | ||
d9724772 OG |
477 | /* mask is mandatory for flags */ |
478 | if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) | |
479 | return -EINVAL; | |
faa3ffce OG |
480 | |
481 | key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); | |
d9724772 | 482 | mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); |
faa3ffce OG |
483 | |
484 | *flags_key = 0; | |
485 | *flags_mask = 0; | |
486 | ||
487 | fl_set_key_flag(key, mask, flags_key, flags_mask, | |
488 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
d9724772 OG |
489 | |
490 | return 0; | |
faa3ffce OG |
491 | } |
492 | ||
4d80cc0a OG |
493 | static void fl_set_key_ip(struct nlattr **tb, |
494 | struct flow_dissector_key_ip *key, | |
495 | struct flow_dissector_key_ip *mask) | |
496 | { | |
497 | fl_set_key_val(tb, &key->tos, TCA_FLOWER_KEY_IP_TOS, | |
498 | &mask->tos, TCA_FLOWER_KEY_IP_TOS_MASK, | |
499 | sizeof(key->tos)); | |
500 | ||
501 | fl_set_key_val(tb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, | |
502 | &mask->ttl, TCA_FLOWER_KEY_IP_TTL_MASK, | |
503 | sizeof(key->ttl)); | |
504 | } | |
505 | ||
77b9900e JP |
506 | static int fl_set_key(struct net *net, struct nlattr **tb, |
507 | struct fl_flow_key *key, struct fl_flow_key *mask) | |
508 | { | |
9399ae9a | 509 | __be16 ethertype; |
d9724772 | 510 | int ret = 0; |
dd3aa3b5 | 511 | #ifdef CONFIG_NET_CLS_IND |
77b9900e | 512 | if (tb[TCA_FLOWER_INDEV]) { |
dd3aa3b5 | 513 | int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); |
77b9900e JP |
514 | if (err < 0) |
515 | return err; | |
516 | key->indev_ifindex = err; | |
517 | mask->indev_ifindex = 0xffffffff; | |
518 | } | |
dd3aa3b5 | 519 | #endif |
77b9900e JP |
520 | |
521 | fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, | |
522 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
523 | sizeof(key->eth.dst)); | |
524 | fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
525 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
526 | sizeof(key->eth.src)); | |
66530bdf | 527 | |
0b498a52 | 528 | if (tb[TCA_FLOWER_KEY_ETH_TYPE]) { |
9399ae9a HHZ |
529 | ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]); |
530 | ||
0b498a52 AB |
531 | if (ethertype == htons(ETH_P_8021Q)) { |
532 | fl_set_key_vlan(tb, &key->vlan, &mask->vlan); | |
533 | fl_set_key_val(tb, &key->basic.n_proto, | |
534 | TCA_FLOWER_KEY_VLAN_ETH_TYPE, | |
535 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
536 | sizeof(key->basic.n_proto)); | |
537 | } else { | |
538 | key->basic.n_proto = ethertype; | |
539 | mask->basic.n_proto = cpu_to_be16(~0); | |
540 | } | |
9399ae9a | 541 | } |
66530bdf | 542 | |
77b9900e JP |
543 | if (key->basic.n_proto == htons(ETH_P_IP) || |
544 | key->basic.n_proto == htons(ETH_P_IPV6)) { | |
545 | fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, | |
546 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, | |
547 | sizeof(key->basic.ip_proto)); | |
4d80cc0a | 548 | fl_set_key_ip(tb, &key->ip, &mask->ip); |
77b9900e | 549 | } |
66530bdf JHS |
550 | |
551 | if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) { | |
552 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 553 | mask->control.addr_type = ~0; |
77b9900e JP |
554 | fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
555 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
556 | sizeof(key->ipv4.src)); | |
557 | fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
558 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
559 | sizeof(key->ipv4.dst)); | |
66530bdf JHS |
560 | } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) { |
561 | key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 562 | mask->control.addr_type = ~0; |
77b9900e JP |
563 | fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
564 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
565 | sizeof(key->ipv6.src)); | |
566 | fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
567 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
568 | sizeof(key->ipv6.dst)); | |
569 | } | |
66530bdf | 570 | |
77b9900e JP |
571 | if (key->basic.ip_proto == IPPROTO_TCP) { |
572 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 573 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
574 | sizeof(key->tp.src)); |
575 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 576 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
77b9900e | 577 | sizeof(key->tp.dst)); |
fdfc7dd6 JP |
578 | fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, |
579 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
580 | sizeof(key->tcp.flags)); | |
77b9900e JP |
581 | } else if (key->basic.ip_proto == IPPROTO_UDP) { |
582 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 583 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
584 | sizeof(key->tp.src)); |
585 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 586 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
77b9900e | 587 | sizeof(key->tp.dst)); |
5976c5f4 SH |
588 | } else if (key->basic.ip_proto == IPPROTO_SCTP) { |
589 | fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
590 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
591 | sizeof(key->tp.src)); | |
592 | fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
593 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
594 | sizeof(key->tp.dst)); | |
7b684884 SH |
595 | } else if (key->basic.n_proto == htons(ETH_P_IP) && |
596 | key->basic.ip_proto == IPPROTO_ICMP) { | |
597 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE, | |
598 | &mask->icmp.type, | |
599 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
600 | sizeof(key->icmp.type)); | |
601 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE, | |
602 | &mask->icmp.code, | |
603 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
604 | sizeof(key->icmp.code)); | |
605 | } else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
606 | key->basic.ip_proto == IPPROTO_ICMPV6) { | |
607 | fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE, | |
608 | &mask->icmp.type, | |
609 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
610 | sizeof(key->icmp.type)); | |
040587af | 611 | fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE, |
7b684884 | 612 | &mask->icmp.code, |
040587af | 613 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, |
7b684884 | 614 | sizeof(key->icmp.code)); |
a577d8f7 BL |
615 | } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) || |
616 | key->basic.n_proto == htons(ETH_P_MPLS_MC)) { | |
1a7fca63 BL |
617 | ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls); |
618 | if (ret) | |
619 | return ret; | |
99d31326 SH |
620 | } else if (key->basic.n_proto == htons(ETH_P_ARP) || |
621 | key->basic.n_proto == htons(ETH_P_RARP)) { | |
622 | fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP, | |
623 | &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK, | |
624 | sizeof(key->arp.sip)); | |
625 | fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP, | |
626 | &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK, | |
627 | sizeof(key->arp.tip)); | |
628 | fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP, | |
629 | &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK, | |
630 | sizeof(key->arp.op)); | |
631 | fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
632 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
633 | sizeof(key->arp.sha)); | |
634 | fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
635 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
636 | sizeof(key->arp.tha)); | |
77b9900e JP |
637 | } |
638 | ||
bc3103f1 AV |
639 | if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] || |
640 | tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) { | |
641 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS; | |
970bfcd0 | 642 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
643 | fl_set_key_val(tb, &key->enc_ipv4.src, |
644 | TCA_FLOWER_KEY_ENC_IPV4_SRC, | |
645 | &mask->enc_ipv4.src, | |
646 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
647 | sizeof(key->enc_ipv4.src)); | |
648 | fl_set_key_val(tb, &key->enc_ipv4.dst, | |
649 | TCA_FLOWER_KEY_ENC_IPV4_DST, | |
650 | &mask->enc_ipv4.dst, | |
651 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
652 | sizeof(key->enc_ipv4.dst)); | |
653 | } | |
654 | ||
655 | if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] || | |
656 | tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) { | |
657 | key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; | |
970bfcd0 | 658 | mask->enc_control.addr_type = ~0; |
bc3103f1 AV |
659 | fl_set_key_val(tb, &key->enc_ipv6.src, |
660 | TCA_FLOWER_KEY_ENC_IPV6_SRC, | |
661 | &mask->enc_ipv6.src, | |
662 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
663 | sizeof(key->enc_ipv6.src)); | |
664 | fl_set_key_val(tb, &key->enc_ipv6.dst, | |
665 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
666 | &mask->enc_ipv6.dst, | |
667 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
668 | sizeof(key->enc_ipv6.dst)); | |
669 | } | |
670 | ||
671 | fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 672 | &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC, |
bc3103f1 AV |
673 | sizeof(key->enc_key_id.keyid)); |
674 | ||
f4d997fd HHZ |
675 | fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, |
676 | &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
677 | sizeof(key->enc_tp.src)); | |
678 | ||
679 | fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
680 | &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
681 | sizeof(key->enc_tp.dst)); | |
682 | ||
d9724772 OG |
683 | if (tb[TCA_FLOWER_KEY_FLAGS]) |
684 | ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); | |
faa3ffce | 685 | |
d9724772 | 686 | return ret; |
77b9900e JP |
687 | } |
688 | ||
689 | static bool fl_mask_eq(struct fl_flow_mask *mask1, | |
690 | struct fl_flow_mask *mask2) | |
691 | { | |
692 | const long *lmask1 = fl_key_get_start(&mask1->key, mask1); | |
693 | const long *lmask2 = fl_key_get_start(&mask2->key, mask2); | |
694 | ||
695 | return !memcmp(&mask1->range, &mask2->range, sizeof(mask1->range)) && | |
696 | !memcmp(lmask1, lmask2, fl_mask_range(mask1)); | |
697 | } | |
698 | ||
699 | static const struct rhashtable_params fl_ht_params = { | |
700 | .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */ | |
701 | .head_offset = offsetof(struct cls_fl_filter, ht_node), | |
702 | .automatic_shrinking = true, | |
703 | }; | |
704 | ||
705 | static int fl_init_hashtable(struct cls_fl_head *head, | |
706 | struct fl_flow_mask *mask) | |
707 | { | |
708 | head->ht_params = fl_ht_params; | |
709 | head->ht_params.key_len = fl_mask_range(mask); | |
710 | head->ht_params.key_offset += mask->range.start; | |
711 | ||
712 | return rhashtable_init(&head->ht, &head->ht_params); | |
713 | } | |
714 | ||
715 | #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member) | |
716 | #define FL_KEY_MEMBER_SIZE(member) (sizeof(((struct fl_flow_key *) 0)->member)) | |
77b9900e | 717 | |
339ba878 HHZ |
718 | #define FL_KEY_IS_MASKED(mask, member) \ |
719 | memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \ | |
720 | 0, FL_KEY_MEMBER_SIZE(member)) \ | |
77b9900e JP |
721 | |
722 | #define FL_KEY_SET(keys, cnt, id, member) \ | |
723 | do { \ | |
724 | keys[cnt].key_id = id; \ | |
725 | keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \ | |
726 | cnt++; \ | |
727 | } while(0); | |
728 | ||
339ba878 | 729 | #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \ |
77b9900e | 730 | do { \ |
339ba878 | 731 | if (FL_KEY_IS_MASKED(mask, member)) \ |
77b9900e JP |
732 | FL_KEY_SET(keys, cnt, id, member); \ |
733 | } while(0); | |
734 | ||
735 | static void fl_init_dissector(struct cls_fl_head *head, | |
736 | struct fl_flow_mask *mask) | |
737 | { | |
738 | struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX]; | |
739 | size_t cnt = 0; | |
740 | ||
42aecaa9 | 741 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control); |
77b9900e | 742 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic); |
339ba878 HHZ |
743 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
744 | FLOW_DISSECTOR_KEY_ETH_ADDRS, eth); | |
745 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
746 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4); | |
747 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
748 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6); | |
749 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
750 | FLOW_DISSECTOR_KEY_PORTS, tp); | |
4d80cc0a OG |
751 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
752 | FLOW_DISSECTOR_KEY_IP, ip); | |
fdfc7dd6 JP |
753 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
754 | FLOW_DISSECTOR_KEY_TCP, tcp); | |
7b684884 SH |
755 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
756 | FLOW_DISSECTOR_KEY_ICMP, icmp); | |
99d31326 SH |
757 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
758 | FLOW_DISSECTOR_KEY_ARP, arp); | |
a577d8f7 BL |
759 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
760 | FLOW_DISSECTOR_KEY_MPLS, mpls); | |
9399ae9a HHZ |
761 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
762 | FLOW_DISSECTOR_KEY_VLAN, vlan); | |
519d1052 HHZ |
763 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
764 | FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id); | |
765 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
766 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4); | |
767 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, | |
768 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6); | |
769 | if (FL_KEY_IS_MASKED(&mask->key, enc_ipv4) || | |
770 | FL_KEY_IS_MASKED(&mask->key, enc_ipv6)) | |
771 | FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
772 | enc_control); | |
f4d997fd HHZ |
773 | FL_KEY_SET_IF_MASKED(&mask->key, keys, cnt, |
774 | FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp); | |
77b9900e JP |
775 | |
776 | skb_flow_dissector_init(&head->dissector, keys, cnt); | |
777 | } | |
778 | ||
779 | static int fl_check_assign_mask(struct cls_fl_head *head, | |
780 | struct fl_flow_mask *mask) | |
781 | { | |
782 | int err; | |
783 | ||
784 | if (head->mask_assigned) { | |
785 | if (!fl_mask_eq(&head->mask, mask)) | |
786 | return -EINVAL; | |
787 | else | |
788 | return 0; | |
789 | } | |
790 | ||
791 | /* Mask is not assigned yet. So assign it and init hashtable | |
792 | * according to that. | |
793 | */ | |
794 | err = fl_init_hashtable(head, mask); | |
795 | if (err) | |
796 | return err; | |
797 | memcpy(&head->mask, mask, sizeof(head->mask)); | |
798 | head->mask_assigned = true; | |
799 | ||
800 | fl_init_dissector(head, mask); | |
801 | ||
802 | return 0; | |
803 | } | |
804 | ||
805 | static int fl_set_parms(struct net *net, struct tcf_proto *tp, | |
806 | struct cls_fl_filter *f, struct fl_flow_mask *mask, | |
807 | unsigned long base, struct nlattr **tb, | |
808 | struct nlattr *est, bool ovr) | |
809 | { | |
77b9900e JP |
810 | int err; |
811 | ||
45507529 | 812 | err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr); |
77b9900e JP |
813 | if (err < 0) |
814 | return err; | |
815 | ||
816 | if (tb[TCA_FLOWER_CLASSID]) { | |
817 | f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]); | |
818 | tcf_bind_filter(tp, &f->res, base); | |
819 | } | |
820 | ||
821 | err = fl_set_key(net, tb, &f->key, &mask->key); | |
822 | if (err) | |
45507529 | 823 | return err; |
77b9900e JP |
824 | |
825 | fl_mask_update_range(mask); | |
826 | fl_set_masked_key(&f->mkey, &f->key, mask); | |
827 | ||
77b9900e | 828 | return 0; |
77b9900e JP |
829 | } |
830 | ||
77b9900e JP |
831 | static int fl_change(struct net *net, struct sk_buff *in_skb, |
832 | struct tcf_proto *tp, unsigned long base, | |
833 | u32 handle, struct nlattr **tca, | |
8113c095 | 834 | void **arg, bool ovr) |
77b9900e JP |
835 | { |
836 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 837 | struct cls_fl_filter *fold = *arg; |
77b9900e | 838 | struct cls_fl_filter *fnew; |
39b7b6a6 | 839 | struct nlattr **tb; |
77b9900e | 840 | struct fl_flow_mask mask = {}; |
c15ab236 | 841 | unsigned long idr_index; |
77b9900e JP |
842 | int err; |
843 | ||
844 | if (!tca[TCA_OPTIONS]) | |
845 | return -EINVAL; | |
846 | ||
39b7b6a6 AB |
847 | tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); |
848 | if (!tb) | |
849 | return -ENOBUFS; | |
850 | ||
fceb6435 JB |
851 | err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], |
852 | fl_policy, NULL); | |
77b9900e | 853 | if (err < 0) |
39b7b6a6 | 854 | goto errout_tb; |
77b9900e | 855 | |
39b7b6a6 AB |
856 | if (fold && handle && fold->handle != handle) { |
857 | err = -EINVAL; | |
858 | goto errout_tb; | |
859 | } | |
77b9900e JP |
860 | |
861 | fnew = kzalloc(sizeof(*fnew), GFP_KERNEL); | |
39b7b6a6 AB |
862 | if (!fnew) { |
863 | err = -ENOBUFS; | |
864 | goto errout_tb; | |
865 | } | |
77b9900e | 866 | |
fb6ad63b | 867 | err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0); |
b9a24bb7 WC |
868 | if (err < 0) |
869 | goto errout; | |
77b9900e JP |
870 | |
871 | if (!handle) { | |
c15ab236 CM |
872 | err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index, |
873 | 1, 0x80000000, GFP_KERNEL); | |
874 | if (err) | |
77b9900e | 875 | goto errout; |
c15ab236 CM |
876 | fnew->handle = idr_index; |
877 | } | |
878 | ||
879 | /* user specifies a handle and it doesn't exist */ | |
880 | if (handle && !fold) { | |
881 | err = idr_alloc_ext(&head->handle_idr, fnew, &idr_index, | |
882 | handle, handle + 1, GFP_KERNEL); | |
883 | if (err) | |
884 | goto errout; | |
885 | fnew->handle = idr_index; | |
77b9900e | 886 | } |
77b9900e | 887 | |
e69985c6 AV |
888 | if (tb[TCA_FLOWER_FLAGS]) { |
889 | fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]); | |
890 | ||
891 | if (!tc_flags_valid(fnew->flags)) { | |
892 | err = -EINVAL; | |
fe2502e4 | 893 | goto errout_idr; |
e69985c6 AV |
894 | } |
895 | } | |
5b33f488 | 896 | |
77b9900e JP |
897 | err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr); |
898 | if (err) | |
fe2502e4 | 899 | goto errout_idr; |
77b9900e JP |
900 | |
901 | err = fl_check_assign_mask(head, &mask); | |
902 | if (err) | |
fe2502e4 | 903 | goto errout_idr; |
77b9900e | 904 | |
e8eb36cd | 905 | if (!tc_skip_sw(fnew->flags)) { |
a3308d8f PB |
906 | if (!fold && fl_lookup(head, &fnew->mkey)) { |
907 | err = -EEXIST; | |
fe2502e4 | 908 | goto errout_idr; |
a3308d8f PB |
909 | } |
910 | ||
e69985c6 AV |
911 | err = rhashtable_insert_fast(&head->ht, &fnew->ht_node, |
912 | head->ht_params); | |
913 | if (err) | |
fe2502e4 | 914 | goto errout_idr; |
e69985c6 | 915 | } |
5b33f488 | 916 | |
79685219 HHZ |
917 | if (!tc_skip_hw(fnew->flags)) { |
918 | err = fl_hw_replace_filter(tp, | |
919 | &head->dissector, | |
920 | &mask.key, | |
3036dab6 | 921 | fnew); |
79685219 | 922 | if (err) |
fe2502e4 | 923 | goto errout_idr; |
79685219 | 924 | } |
5b33f488 | 925 | |
55593960 OG |
926 | if (!tc_in_hw(fnew->flags)) |
927 | fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW; | |
928 | ||
5b33f488 | 929 | if (fold) { |
725cbb62 JP |
930 | if (!tc_skip_sw(fold->flags)) |
931 | rhashtable_remove_fast(&head->ht, &fold->ht_node, | |
932 | head->ht_params); | |
79685219 | 933 | if (!tc_skip_hw(fold->flags)) |
3036dab6 | 934 | fl_hw_destroy_filter(tp, fold); |
5b33f488 | 935 | } |
77b9900e | 936 | |
8113c095 | 937 | *arg = fnew; |
77b9900e JP |
938 | |
939 | if (fold) { | |
c15ab236 CM |
940 | fnew->handle = handle; |
941 | idr_replace_ext(&head->handle_idr, fnew, fnew->handle); | |
ff3532f2 | 942 | list_replace_rcu(&fold->list, &fnew->list); |
77b9900e | 943 | tcf_unbind_filter(tp, &fold->res); |
0dadc117 | 944 | tcf_exts_get_net(&fold->exts); |
7afe8e4f | 945 | tcf_queue_work(&fold->rwork, fl_destroy_filter_work); |
77b9900e JP |
946 | } else { |
947 | list_add_tail_rcu(&fnew->list, &head->filters); | |
948 | } | |
949 | ||
39b7b6a6 | 950 | kfree(tb); |
77b9900e JP |
951 | return 0; |
952 | ||
fe2502e4 | 953 | errout_idr: |
eb7a315b | 954 | if (!fold) |
fe2502e4 | 955 | idr_remove_ext(&head->handle_idr, fnew->handle); |
77b9900e | 956 | errout: |
b9a24bb7 | 957 | tcf_exts_destroy(&fnew->exts); |
77b9900e | 958 | kfree(fnew); |
39b7b6a6 AB |
959 | errout_tb: |
960 | kfree(tb); | |
77b9900e JP |
961 | return err; |
962 | } | |
963 | ||
8113c095 | 964 | static int fl_delete(struct tcf_proto *tp, void *arg, bool *last) |
77b9900e JP |
965 | { |
966 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 967 | struct cls_fl_filter *f = arg; |
77b9900e | 968 | |
725cbb62 JP |
969 | if (!tc_skip_sw(f->flags)) |
970 | rhashtable_remove_fast(&head->ht, &f->ht_node, | |
971 | head->ht_params); | |
13fa876e | 972 | __fl_delete(tp, f); |
763dbf63 | 973 | *last = list_empty(&head->filters); |
77b9900e JP |
974 | return 0; |
975 | } | |
976 | ||
977 | static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg) | |
978 | { | |
979 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
980 | struct cls_fl_filter *f; | |
981 | ||
982 | list_for_each_entry_rcu(f, &head->filters, list) { | |
983 | if (arg->count < arg->skip) | |
984 | goto skip; | |
8113c095 | 985 | if (arg->fn(tp, f, arg) < 0) { |
77b9900e JP |
986 | arg->stop = 1; |
987 | break; | |
988 | } | |
989 | skip: | |
990 | arg->count++; | |
991 | } | |
992 | } | |
993 | ||
994 | static int fl_dump_key_val(struct sk_buff *skb, | |
995 | void *val, int val_type, | |
996 | void *mask, int mask_type, int len) | |
997 | { | |
998 | int err; | |
999 | ||
1000 | if (!memchr_inv(mask, 0, len)) | |
1001 | return 0; | |
1002 | err = nla_put(skb, val_type, len, val); | |
1003 | if (err) | |
1004 | return err; | |
1005 | if (mask_type != TCA_FLOWER_UNSPEC) { | |
1006 | err = nla_put(skb, mask_type, len, mask); | |
1007 | if (err) | |
1008 | return err; | |
1009 | } | |
1010 | return 0; | |
1011 | } | |
1012 | ||
a577d8f7 BL |
1013 | static int fl_dump_key_mpls(struct sk_buff *skb, |
1014 | struct flow_dissector_key_mpls *mpls_key, | |
1015 | struct flow_dissector_key_mpls *mpls_mask) | |
1016 | { | |
1017 | int err; | |
1018 | ||
1019 | if (!memchr_inv(mpls_mask, 0, sizeof(*mpls_mask))) | |
1020 | return 0; | |
1021 | if (mpls_mask->mpls_ttl) { | |
1022 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL, | |
1023 | mpls_key->mpls_ttl); | |
1024 | if (err) | |
1025 | return err; | |
1026 | } | |
1027 | if (mpls_mask->mpls_tc) { | |
1028 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC, | |
1029 | mpls_key->mpls_tc); | |
1030 | if (err) | |
1031 | return err; | |
1032 | } | |
1033 | if (mpls_mask->mpls_label) { | |
1034 | err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL, | |
1035 | mpls_key->mpls_label); | |
1036 | if (err) | |
1037 | return err; | |
1038 | } | |
1039 | if (mpls_mask->mpls_bos) { | |
1040 | err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS, | |
1041 | mpls_key->mpls_bos); | |
1042 | if (err) | |
1043 | return err; | |
1044 | } | |
1045 | return 0; | |
1046 | } | |
1047 | ||
4d80cc0a OG |
1048 | static int fl_dump_key_ip(struct sk_buff *skb, |
1049 | struct flow_dissector_key_ip *key, | |
1050 | struct flow_dissector_key_ip *mask) | |
1051 | { | |
1052 | if (fl_dump_key_val(skb, &key->tos, TCA_FLOWER_KEY_IP_TOS, &mask->tos, | |
1053 | TCA_FLOWER_KEY_IP_TOS_MASK, sizeof(key->tos)) || | |
1054 | fl_dump_key_val(skb, &key->ttl, TCA_FLOWER_KEY_IP_TTL, &mask->ttl, | |
1055 | TCA_FLOWER_KEY_IP_TTL_MASK, sizeof(key->ttl))) | |
1056 | return -1; | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
9399ae9a HHZ |
1061 | static int fl_dump_key_vlan(struct sk_buff *skb, |
1062 | struct flow_dissector_key_vlan *vlan_key, | |
1063 | struct flow_dissector_key_vlan *vlan_mask) | |
1064 | { | |
1065 | int err; | |
1066 | ||
1067 | if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask))) | |
1068 | return 0; | |
1069 | if (vlan_mask->vlan_id) { | |
1070 | err = nla_put_u16(skb, TCA_FLOWER_KEY_VLAN_ID, | |
1071 | vlan_key->vlan_id); | |
1072 | if (err) | |
1073 | return err; | |
1074 | } | |
1075 | if (vlan_mask->vlan_priority) { | |
1076 | err = nla_put_u8(skb, TCA_FLOWER_KEY_VLAN_PRIO, | |
1077 | vlan_key->vlan_priority); | |
1078 | if (err) | |
1079 | return err; | |
1080 | } | |
1081 | return 0; | |
1082 | } | |
1083 | ||
faa3ffce OG |
1084 | static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask, |
1085 | u32 *flower_key, u32 *flower_mask, | |
1086 | u32 flower_flag_bit, u32 dissector_flag_bit) | |
1087 | { | |
1088 | if (dissector_mask & dissector_flag_bit) { | |
1089 | *flower_mask |= flower_flag_bit; | |
1090 | if (dissector_key & dissector_flag_bit) | |
1091 | *flower_key |= flower_flag_bit; | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) | |
1096 | { | |
1097 | u32 key, mask; | |
1098 | __be32 _key, _mask; | |
1099 | int err; | |
1100 | ||
1101 | if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask))) | |
1102 | return 0; | |
1103 | ||
1104 | key = 0; | |
1105 | mask = 0; | |
1106 | ||
1107 | fl_get_key_flag(flags_key, flags_mask, &key, &mask, | |
1108 | TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); | |
1109 | ||
1110 | _key = cpu_to_be32(key); | |
1111 | _mask = cpu_to_be32(mask); | |
1112 | ||
1113 | err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key); | |
1114 | if (err) | |
1115 | return err; | |
1116 | ||
1117 | return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask); | |
1118 | } | |
1119 | ||
8113c095 | 1120 | static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh, |
77b9900e JP |
1121 | struct sk_buff *skb, struct tcmsg *t) |
1122 | { | |
1123 | struct cls_fl_head *head = rtnl_dereference(tp->root); | |
8113c095 | 1124 | struct cls_fl_filter *f = fh; |
77b9900e JP |
1125 | struct nlattr *nest; |
1126 | struct fl_flow_key *key, *mask; | |
1127 | ||
1128 | if (!f) | |
1129 | return skb->len; | |
1130 | ||
1131 | t->tcm_handle = f->handle; | |
1132 | ||
1133 | nest = nla_nest_start(skb, TCA_OPTIONS); | |
1134 | if (!nest) | |
1135 | goto nla_put_failure; | |
1136 | ||
1137 | if (f->res.classid && | |
1138 | nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid)) | |
1139 | goto nla_put_failure; | |
1140 | ||
1141 | key = &f->key; | |
1142 | mask = &head->mask.key; | |
1143 | ||
1144 | if (mask->indev_ifindex) { | |
1145 | struct net_device *dev; | |
1146 | ||
1147 | dev = __dev_get_by_index(net, key->indev_ifindex); | |
1148 | if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name)) | |
1149 | goto nla_put_failure; | |
1150 | } | |
1151 | ||
79685219 HHZ |
1152 | if (!tc_skip_hw(f->flags)) |
1153 | fl_hw_update_stats(tp, f); | |
10cbc684 | 1154 | |
77b9900e JP |
1155 | if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST, |
1156 | mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK, | |
1157 | sizeof(key->eth.dst)) || | |
1158 | fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC, | |
1159 | mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK, | |
1160 | sizeof(key->eth.src)) || | |
1161 | fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE, | |
1162 | &mask->basic.n_proto, TCA_FLOWER_UNSPEC, | |
1163 | sizeof(key->basic.n_proto))) | |
1164 | goto nla_put_failure; | |
9399ae9a | 1165 | |
a577d8f7 BL |
1166 | if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls)) |
1167 | goto nla_put_failure; | |
1168 | ||
9399ae9a HHZ |
1169 | if (fl_dump_key_vlan(skb, &key->vlan, &mask->vlan)) |
1170 | goto nla_put_failure; | |
1171 | ||
77b9900e JP |
1172 | if ((key->basic.n_proto == htons(ETH_P_IP) || |
1173 | key->basic.n_proto == htons(ETH_P_IPV6)) && | |
4d80cc0a | 1174 | (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO, |
77b9900e | 1175 | &mask->basic.ip_proto, TCA_FLOWER_UNSPEC, |
4d80cc0a OG |
1176 | sizeof(key->basic.ip_proto)) || |
1177 | fl_dump_key_ip(skb, &key->ip, &mask->ip))) | |
77b9900e JP |
1178 | goto nla_put_failure; |
1179 | ||
c3f83241 | 1180 | if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
77b9900e JP |
1181 | (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC, |
1182 | &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK, | |
1183 | sizeof(key->ipv4.src)) || | |
1184 | fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST, | |
1185 | &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK, | |
1186 | sizeof(key->ipv4.dst)))) | |
1187 | goto nla_put_failure; | |
c3f83241 | 1188 | else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && |
77b9900e JP |
1189 | (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC, |
1190 | &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK, | |
1191 | sizeof(key->ipv6.src)) || | |
1192 | fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST, | |
1193 | &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK, | |
1194 | sizeof(key->ipv6.dst)))) | |
1195 | goto nla_put_failure; | |
1196 | ||
1197 | if (key->basic.ip_proto == IPPROTO_TCP && | |
1198 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC, | |
aa72d708 | 1199 | &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK, |
77b9900e JP |
1200 | sizeof(key->tp.src)) || |
1201 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST, | |
aa72d708 | 1202 | &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK, |
fdfc7dd6 JP |
1203 | sizeof(key->tp.dst)) || |
1204 | fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS, | |
1205 | &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK, | |
1206 | sizeof(key->tcp.flags)))) | |
77b9900e JP |
1207 | goto nla_put_failure; |
1208 | else if (key->basic.ip_proto == IPPROTO_UDP && | |
1209 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC, | |
aa72d708 | 1210 | &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK, |
77b9900e JP |
1211 | sizeof(key->tp.src)) || |
1212 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST, | |
aa72d708 | 1213 | &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK, |
5976c5f4 SH |
1214 | sizeof(key->tp.dst)))) |
1215 | goto nla_put_failure; | |
1216 | else if (key->basic.ip_proto == IPPROTO_SCTP && | |
1217 | (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC, | |
1218 | &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK, | |
1219 | sizeof(key->tp.src)) || | |
1220 | fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST, | |
1221 | &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK, | |
77b9900e JP |
1222 | sizeof(key->tp.dst)))) |
1223 | goto nla_put_failure; | |
7b684884 SH |
1224 | else if (key->basic.n_proto == htons(ETH_P_IP) && |
1225 | key->basic.ip_proto == IPPROTO_ICMP && | |
1226 | (fl_dump_key_val(skb, &key->icmp.type, | |
1227 | TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type, | |
1228 | TCA_FLOWER_KEY_ICMPV4_TYPE_MASK, | |
1229 | sizeof(key->icmp.type)) || | |
1230 | fl_dump_key_val(skb, &key->icmp.code, | |
1231 | TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code, | |
1232 | TCA_FLOWER_KEY_ICMPV4_CODE_MASK, | |
1233 | sizeof(key->icmp.code)))) | |
1234 | goto nla_put_failure; | |
1235 | else if (key->basic.n_proto == htons(ETH_P_IPV6) && | |
1236 | key->basic.ip_proto == IPPROTO_ICMPV6 && | |
1237 | (fl_dump_key_val(skb, &key->icmp.type, | |
1238 | TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type, | |
1239 | TCA_FLOWER_KEY_ICMPV6_TYPE_MASK, | |
1240 | sizeof(key->icmp.type)) || | |
1241 | fl_dump_key_val(skb, &key->icmp.code, | |
1242 | TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code, | |
1243 | TCA_FLOWER_KEY_ICMPV6_CODE_MASK, | |
1244 | sizeof(key->icmp.code)))) | |
1245 | goto nla_put_failure; | |
99d31326 SH |
1246 | else if ((key->basic.n_proto == htons(ETH_P_ARP) || |
1247 | key->basic.n_proto == htons(ETH_P_RARP)) && | |
1248 | (fl_dump_key_val(skb, &key->arp.sip, | |
1249 | TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip, | |
1250 | TCA_FLOWER_KEY_ARP_SIP_MASK, | |
1251 | sizeof(key->arp.sip)) || | |
1252 | fl_dump_key_val(skb, &key->arp.tip, | |
1253 | TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip, | |
1254 | TCA_FLOWER_KEY_ARP_TIP_MASK, | |
1255 | sizeof(key->arp.tip)) || | |
1256 | fl_dump_key_val(skb, &key->arp.op, | |
1257 | TCA_FLOWER_KEY_ARP_OP, &mask->arp.op, | |
1258 | TCA_FLOWER_KEY_ARP_OP_MASK, | |
1259 | sizeof(key->arp.op)) || | |
1260 | fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA, | |
1261 | mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK, | |
1262 | sizeof(key->arp.sha)) || | |
1263 | fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA, | |
1264 | mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK, | |
1265 | sizeof(key->arp.tha)))) | |
1266 | goto nla_put_failure; | |
77b9900e | 1267 | |
bc3103f1 AV |
1268 | if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS && |
1269 | (fl_dump_key_val(skb, &key->enc_ipv4.src, | |
1270 | TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src, | |
1271 | TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK, | |
1272 | sizeof(key->enc_ipv4.src)) || | |
1273 | fl_dump_key_val(skb, &key->enc_ipv4.dst, | |
1274 | TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst, | |
1275 | TCA_FLOWER_KEY_ENC_IPV4_DST_MASK, | |
1276 | sizeof(key->enc_ipv4.dst)))) | |
1277 | goto nla_put_failure; | |
1278 | else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS && | |
1279 | (fl_dump_key_val(skb, &key->enc_ipv6.src, | |
1280 | TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src, | |
1281 | TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK, | |
1282 | sizeof(key->enc_ipv6.src)) || | |
1283 | fl_dump_key_val(skb, &key->enc_ipv6.dst, | |
1284 | TCA_FLOWER_KEY_ENC_IPV6_DST, | |
1285 | &mask->enc_ipv6.dst, | |
1286 | TCA_FLOWER_KEY_ENC_IPV6_DST_MASK, | |
1287 | sizeof(key->enc_ipv6.dst)))) | |
1288 | goto nla_put_failure; | |
1289 | ||
1290 | if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID, | |
eb523f42 | 1291 | &mask->enc_key_id, TCA_FLOWER_UNSPEC, |
f4d997fd HHZ |
1292 | sizeof(key->enc_key_id)) || |
1293 | fl_dump_key_val(skb, &key->enc_tp.src, | |
1294 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT, | |
1295 | &mask->enc_tp.src, | |
1296 | TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK, | |
1297 | sizeof(key->enc_tp.src)) || | |
1298 | fl_dump_key_val(skb, &key->enc_tp.dst, | |
1299 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT, | |
1300 | &mask->enc_tp.dst, | |
1301 | TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, | |
1302 | sizeof(key->enc_tp.dst))) | |
bc3103f1 AV |
1303 | goto nla_put_failure; |
1304 | ||
faa3ffce OG |
1305 | if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags)) |
1306 | goto nla_put_failure; | |
1307 | ||
749e6720 OG |
1308 | if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) |
1309 | goto nla_put_failure; | |
e69985c6 | 1310 | |
77b9900e JP |
1311 | if (tcf_exts_dump(skb, &f->exts)) |
1312 | goto nla_put_failure; | |
1313 | ||
1314 | nla_nest_end(skb, nest); | |
1315 | ||
1316 | if (tcf_exts_dump_stats(skb, &f->exts) < 0) | |
1317 | goto nla_put_failure; | |
1318 | ||
1319 | return skb->len; | |
1320 | ||
1321 | nla_put_failure: | |
1322 | nla_nest_cancel(skb, nest); | |
1323 | return -1; | |
1324 | } | |
1325 | ||
e46e33f5 CW |
1326 | static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q, |
1327 | unsigned long base) | |
07d79fc7 CW |
1328 | { |
1329 | struct cls_fl_filter *f = fh; | |
1330 | ||
e46e33f5 CW |
1331 | if (f && f->res.classid == classid) { |
1332 | if (cl) | |
1333 | __tcf_bind_filter(q, &f->res, base); | |
1334 | else | |
1335 | __tcf_unbind_filter(q, &f->res); | |
1336 | } | |
07d79fc7 CW |
1337 | } |
1338 | ||
77b9900e JP |
1339 | static struct tcf_proto_ops cls_fl_ops __read_mostly = { |
1340 | .kind = "flower", | |
1341 | .classify = fl_classify, | |
1342 | .init = fl_init, | |
1343 | .destroy = fl_destroy, | |
1344 | .get = fl_get, | |
1345 | .change = fl_change, | |
1346 | .delete = fl_delete, | |
1347 | .walk = fl_walk, | |
1348 | .dump = fl_dump, | |
07d79fc7 | 1349 | .bind_class = fl_bind_class, |
77b9900e JP |
1350 | .owner = THIS_MODULE, |
1351 | }; | |
1352 | ||
1353 | static int __init cls_fl_init(void) | |
1354 | { | |
1355 | return register_tcf_proto_ops(&cls_fl_ops); | |
1356 | } | |
1357 | ||
1358 | static void __exit cls_fl_exit(void) | |
1359 | { | |
1360 | unregister_tcf_proto_ops(&cls_fl_ops); | |
1361 | } | |
1362 | ||
1363 | module_init(cls_fl_init); | |
1364 | module_exit(cls_fl_exit); | |
1365 | ||
1366 | MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>"); | |
1367 | MODULE_DESCRIPTION("Flower classifier"); | |
1368 | MODULE_LICENSE("GPL v2"); |