blob: 23fda2ac0d19241638a6ec64e17c5764c5f95f11 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * net/sched/cls_fw.c Classifier mapping ipchains' fwmark to traffic class.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 *
11 * Changes:
12 * Karlis Peisenieks <karlis@mt.lv> : 990415 : fw_walk off by one
13 * Karlis Peisenieks <karlis@mt.lv> : 990415 : fw_delete killed all the filter (and kernel).
14 * Alex <alex@pilotsoft.com> : 2004xxyy: Added Action extension
15 *
16 * JHS: We should remove the CONFIG_NET_CLS_IND from here
17 * eventually when the meta match extension is made available
18 *
19 */
20
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <linux/module.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090022#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <linux/types.h>
24#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include <linux/string.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <linux/errno.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <linux/skbuff.h>
Patrick McHardy0ba48052007-07-02 22:49:07 -070028#include <net/netlink.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include <net/act_api.h>
30#include <net/pkt_cls.h>
31
Eric Dumazetd37d8ac2014-03-17 20:20:49 -070032#define HTSIZE 256
Thomas Grafc5c13fa2005-04-24 20:19:54 -070033
Eric Dumazetcc7ec452011-01-19 19:26:56 +000034struct fw_head {
Eric Dumazetd37d8ac2014-03-17 20:20:49 -070035 u32 mask;
John Fastabende35a8ee2014-09-12 20:07:22 -070036 struct fw_filter __rcu *ht[HTSIZE];
37 struct rcu_head rcu;
Linus Torvalds1da177e2005-04-16 15:20:36 -070038};
39
Eric Dumazetcc7ec452011-01-19 19:26:56 +000040struct fw_filter {
John Fastabende35a8ee2014-09-12 20:07:22 -070041 struct fw_filter __rcu *next;
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 u32 id;
43 struct tcf_result res;
44#ifdef CONFIG_NET_CLS_IND
WANG Cong2519a602014-01-09 16:14:02 -080045 int ifindex;
Linus Torvalds1da177e2005-04-16 15:20:36 -070046#endif /* CONFIG_NET_CLS_IND */
47 struct tcf_exts exts;
John Fastabende35a8ee2014-09-12 20:07:22 -070048 struct tcf_proto *tp;
49 struct rcu_head rcu;
Linus Torvalds1da177e2005-04-16 15:20:36 -070050};
51
Eric Dumazetd37d8ac2014-03-17 20:20:49 -070052static u32 fw_hash(u32 handle)
Linus Torvalds1da177e2005-04-16 15:20:36 -070053{
Eric Dumazetd37d8ac2014-03-17 20:20:49 -070054 handle ^= (handle >> 16);
55 handle ^= (handle >> 8);
56 return handle % HTSIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -070057}
58
Eric Dumazetdc7f9f62011-07-05 23:25:42 +000059static int fw_classify(struct sk_buff *skb, const struct tcf_proto *tp,
Linus Torvalds1da177e2005-04-16 15:20:36 -070060 struct tcf_result *res)
61{
John Fastabende35a8ee2014-09-12 20:07:22 -070062 struct fw_head *head = rcu_dereference_bh(tp->root);
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 struct fw_filter *f;
64 int r;
Patrick McHardy5c804bf2006-12-05 13:46:13 -080065 u32 id = skb->mark;
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
67 if (head != NULL) {
Patrick McHardy5c804bf2006-12-05 13:46:13 -080068 id &= head->mask;
John Fastabende35a8ee2014-09-12 20:07:22 -070069
70 for (f = rcu_dereference_bh(head->ht[fw_hash(id)]); f;
71 f = rcu_dereference_bh(f->next)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 if (f->id == id) {
73 *res = f->res;
74#ifdef CONFIG_NET_CLS_IND
WANG Cong2519a602014-01-09 16:14:02 -080075 if (!tcf_match_indev(skb, f->ifindex))
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 continue;
77#endif /* CONFIG_NET_CLS_IND */
78 r = tcf_exts_exec(skb, &f->exts, res);
79 if (r < 0)
80 continue;
81
82 return r;
83 }
84 }
85 } else {
86 /* old method */
Eric Dumazetcc7ec452011-01-19 19:26:56 +000087 if (id && (TC_H_MAJ(id) == 0 ||
88 !(TC_H_MAJ(id ^ tp->q->handle)))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 res->classid = id;
90 res->class = 0;
91 return 0;
92 }
93 }
94
95 return -1;
96}
97
98static unsigned long fw_get(struct tcf_proto *tp, u32 handle)
99{
John Fastabende35a8ee2014-09-12 20:07:22 -0700100 struct fw_head *head = rtnl_dereference(tp->root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 struct fw_filter *f;
102
103 if (head == NULL)
104 return 0;
105
John Fastabende35a8ee2014-09-12 20:07:22 -0700106 f = rtnl_dereference(head->ht[fw_hash(handle)]);
107 for (; f; f = rtnl_dereference(f->next)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 if (f->id == handle)
109 return (unsigned long)f;
110 }
111 return 0;
112}
113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114static int fw_init(struct tcf_proto *tp)
115{
116 return 0;
117}
118
John Fastabende35a8ee2014-09-12 20:07:22 -0700119static void fw_delete_filter(struct rcu_head *head)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120{
John Fastabende35a8ee2014-09-12 20:07:22 -0700121 struct fw_filter *f = container_of(head, struct fw_filter, rcu);
John Fastabende35a8ee2014-09-12 20:07:22 -0700122
WANG Cong18d02642014-09-25 10:26:37 -0700123 tcf_exts_destroy(&f->exts);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 kfree(f);
125}
126
127static void fw_destroy(struct tcf_proto *tp)
128{
John Fastabende35a8ee2014-09-12 20:07:22 -0700129 struct fw_head *head = rtnl_dereference(tp->root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 struct fw_filter *f;
131 int h;
132
133 if (head == NULL)
134 return;
135
Eric Dumazetcc7ec452011-01-19 19:26:56 +0000136 for (h = 0; h < HTSIZE; h++) {
John Fastabende35a8ee2014-09-12 20:07:22 -0700137 while ((f = rtnl_dereference(head->ht[h])) != NULL) {
138 RCU_INIT_POINTER(head->ht[h],
139 rtnl_dereference(f->next));
John Fastabend18cdb372014-10-05 21:28:52 -0700140 tcf_unbind_filter(tp, &f->res);
John Fastabende35a8ee2014-09-12 20:07:22 -0700141 call_rcu(&f->rcu, fw_delete_filter);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 }
143 }
John Fastabende35a8ee2014-09-12 20:07:22 -0700144 RCU_INIT_POINTER(tp->root, NULL);
145 kfree_rcu(head, rcu);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146}
147
148static int fw_delete(struct tcf_proto *tp, unsigned long arg)
149{
John Fastabende35a8ee2014-09-12 20:07:22 -0700150 struct fw_head *head = rtnl_dereference(tp->root);
Eric Dumazetcc7ec452011-01-19 19:26:56 +0000151 struct fw_filter *f = (struct fw_filter *)arg;
John Fastabende35a8ee2014-09-12 20:07:22 -0700152 struct fw_filter __rcu **fp;
153 struct fw_filter *pfp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
155 if (head == NULL || f == NULL)
156 goto out;
157
John Fastabende35a8ee2014-09-12 20:07:22 -0700158 fp = &head->ht[fw_hash(f->id)];
159
160 for (pfp = rtnl_dereference(*fp); pfp;
161 fp = &pfp->next, pfp = rtnl_dereference(*fp)) {
162 if (pfp == f) {
163 RCU_INIT_POINTER(*fp, rtnl_dereference(f->next));
John Fastabend18cdb372014-10-05 21:28:52 -0700164 tcf_unbind_filter(tp, &f->res);
John Fastabende35a8ee2014-09-12 20:07:22 -0700165 call_rcu(&f->rcu, fw_delete_filter);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 return 0;
167 }
168 }
169out:
170 return -EINVAL;
171}
172
Patrick McHardy6fa8c012008-01-23 20:36:12 -0800173static const struct nla_policy fw_policy[TCA_FW_MAX + 1] = {
174 [TCA_FW_CLASSID] = { .type = NLA_U32 },
175 [TCA_FW_INDEV] = { .type = NLA_STRING, .len = IFNAMSIZ },
176 [TCA_FW_MASK] = { .type = NLA_U32 },
177};
178
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179static int
Benjamin LaHaisec1b52732013-01-14 05:15:39 +0000180fw_change_attrs(struct net *net, struct tcf_proto *tp, struct fw_filter *f,
Cong Wang2f7ef2f2014-04-25 13:54:06 -0700181 struct nlattr **tb, struct nlattr **tca, unsigned long base, bool ovr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182{
John Fastabende35a8ee2014-09-12 20:07:22 -0700183 struct fw_head *head = rtnl_dereference(tp->root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 struct tcf_exts e;
Patrick McHardyb4e9b522006-08-25 16:11:42 -0700185 u32 mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186 int err;
187
WANG Cong5da57f42013-12-15 20:15:07 -0800188 tcf_exts_init(&e, TCA_FW_ACT, TCA_FW_POLICE);
Cong Wang2f7ef2f2014-04-25 13:54:06 -0700189 err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, ovr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190 if (err < 0)
191 return err;
192
Patrick McHardyadd93b62008-01-22 22:11:33 -0800193 if (tb[TCA_FW_CLASSID]) {
Patrick McHardy1587bac2008-01-23 20:35:03 -0800194 f->res.classid = nla_get_u32(tb[TCA_FW_CLASSID]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 tcf_bind_filter(tp, &f->res, base);
196 }
197
198#ifdef CONFIG_NET_CLS_IND
Patrick McHardyadd93b62008-01-22 22:11:33 -0800199 if (tb[TCA_FW_INDEV]) {
WANG Cong2519a602014-01-09 16:14:02 -0800200 int ret;
201 ret = tcf_change_indev(net, tb[TCA_FW_INDEV]);
Wei Yongjun722e47d2014-01-17 09:53:20 +0800202 if (ret < 0) {
203 err = ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 goto errout;
Wei Yongjun722e47d2014-01-17 09:53:20 +0800205 }
WANG Cong2519a602014-01-09 16:14:02 -0800206 f->ifindex = ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 }
208#endif /* CONFIG_NET_CLS_IND */
209
Wei Yongjuncb95ec62013-04-17 16:49:10 +0000210 err = -EINVAL;
Patrick McHardyadd93b62008-01-22 22:11:33 -0800211 if (tb[TCA_FW_MASK]) {
Patrick McHardy1587bac2008-01-23 20:35:03 -0800212 mask = nla_get_u32(tb[TCA_FW_MASK]);
Patrick McHardyb4e9b522006-08-25 16:11:42 -0700213 if (mask != head->mask)
214 goto errout;
215 } else if (head->mask != 0xFFFFFFFF)
216 goto errout;
217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 tcf_exts_change(tp, &f->exts, &e);
219
220 return 0;
221errout:
WANG Cong18d02642014-09-25 10:26:37 -0700222 tcf_exts_destroy(&e);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 return err;
224}
225
Benjamin LaHaisec1b52732013-01-14 05:15:39 +0000226static int fw_change(struct net *net, struct sk_buff *in_skb,
Eric W. Biedermanaf4c6642012-05-25 13:42:45 -0600227 struct tcf_proto *tp, unsigned long base,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 u32 handle,
Patrick McHardyadd93b62008-01-22 22:11:33 -0800229 struct nlattr **tca,
Cong Wang2f7ef2f2014-04-25 13:54:06 -0700230 unsigned long *arg, bool ovr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231{
John Fastabende35a8ee2014-09-12 20:07:22 -0700232 struct fw_head *head = rtnl_dereference(tp->root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 struct fw_filter *f = (struct fw_filter *) *arg;
Patrick McHardyadd93b62008-01-22 22:11:33 -0800234 struct nlattr *opt = tca[TCA_OPTIONS];
235 struct nlattr *tb[TCA_FW_MAX + 1];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 int err;
237
238 if (!opt)
239 return handle ? -EINVAL : 0;
240
Patrick McHardy6fa8c012008-01-23 20:36:12 -0800241 err = nla_parse_nested(tb, TCA_FW_MAX, opt, fw_policy);
Patrick McHardycee63722008-01-23 20:33:32 -0800242 if (err < 0)
243 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
John Fastabende35a8ee2014-09-12 20:07:22 -0700245 if (f) {
246 struct fw_filter *pfp, *fnew;
247 struct fw_filter __rcu **fp;
248
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 if (f->id != handle && handle)
250 return -EINVAL;
John Fastabende35a8ee2014-09-12 20:07:22 -0700251
252 fnew = kzalloc(sizeof(struct fw_filter), GFP_KERNEL);
253 if (!fnew)
254 return -ENOBUFS;
255
256 fnew->id = f->id;
257 fnew->res = f->res;
258#ifdef CONFIG_NET_CLS_IND
259 fnew->ifindex = f->ifindex;
260#endif /* CONFIG_NET_CLS_IND */
261 fnew->tp = f->tp;
262
John Fastabende1f93eb2014-09-15 23:31:42 -0700263 tcf_exts_init(&fnew->exts, TCA_FW_ACT, TCA_FW_POLICE);
264
John Fastabende35a8ee2014-09-12 20:07:22 -0700265 err = fw_change_attrs(net, tp, fnew, tb, tca, base, ovr);
266 if (err < 0) {
267 kfree(fnew);
268 return err;
269 }
270
271 fp = &head->ht[fw_hash(fnew->id)];
272 for (pfp = rtnl_dereference(*fp); pfp;
273 fp = &pfp->next, pfp = rtnl_dereference(*fp))
274 if (pfp == f)
275 break;
276
277 RCU_INIT_POINTER(fnew->next, rtnl_dereference(pfp->next));
278 rcu_assign_pointer(*fp, fnew);
John Fastabend18cdb372014-10-05 21:28:52 -0700279 tcf_unbind_filter(tp, &f->res);
John Fastabende35a8ee2014-09-12 20:07:22 -0700280 call_rcu(&f->rcu, fw_delete_filter);
281
282 *arg = (unsigned long)fnew;
283 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 }
285
286 if (!handle)
287 return -EINVAL;
288
289 if (head == NULL) {
Patrick McHardyb4e9b522006-08-25 16:11:42 -0700290 u32 mask = 0xFFFFFFFF;
Patrick McHardy6fa8c012008-01-23 20:36:12 -0800291 if (tb[TCA_FW_MASK])
Patrick McHardy1587bac2008-01-23 20:35:03 -0800292 mask = nla_get_u32(tb[TCA_FW_MASK]);
Patrick McHardyb4e9b522006-08-25 16:11:42 -0700293
Panagiotis Issaris0da974f2006-07-21 14:51:30 -0700294 head = kzalloc(sizeof(struct fw_head), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 if (head == NULL)
296 return -ENOBUFS;
Patrick McHardyb4e9b522006-08-25 16:11:42 -0700297 head->mask = mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
John Fastabende35a8ee2014-09-12 20:07:22 -0700299 rcu_assign_pointer(tp->root, head);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 }
301
Panagiotis Issaris0da974f2006-07-21 14:51:30 -0700302 f = kzalloc(sizeof(struct fw_filter), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 if (f == NULL)
304 return -ENOBUFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305
WANG Cong5da57f42013-12-15 20:15:07 -0800306 tcf_exts_init(&f->exts, TCA_FW_ACT, TCA_FW_POLICE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 f->id = handle;
John Fastabende35a8ee2014-09-12 20:07:22 -0700308 f->tp = tp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309
Cong Wang2f7ef2f2014-04-25 13:54:06 -0700310 err = fw_change_attrs(net, tp, f, tb, tca, base, ovr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 if (err < 0)
312 goto errout;
313
John Fastabende35a8ee2014-09-12 20:07:22 -0700314 RCU_INIT_POINTER(f->next, head->ht[fw_hash(handle)]);
315 rcu_assign_pointer(head->ht[fw_hash(handle)], f);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
317 *arg = (unsigned long)f;
318 return 0;
319
320errout:
Jesper Juhla51482b2005-11-08 09:41:34 -0800321 kfree(f);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 return err;
323}
324
325static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg)
326{
John Fastabende35a8ee2014-09-12 20:07:22 -0700327 struct fw_head *head = rtnl_dereference(tp->root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 int h;
329
330 if (head == NULL)
331 arg->stop = 1;
332
333 if (arg->stop)
334 return;
335
Thomas Grafc5c13fa2005-04-24 20:19:54 -0700336 for (h = 0; h < HTSIZE; h++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337 struct fw_filter *f;
338
John Fastabende35a8ee2014-09-12 20:07:22 -0700339 for (f = rtnl_dereference(head->ht[h]); f;
340 f = rtnl_dereference(f->next)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 if (arg->count < arg->skip) {
342 arg->count++;
343 continue;
344 }
345 if (arg->fn(tp, (unsigned long)f, arg) < 0) {
346 arg->stop = 1;
347 return;
348 }
349 arg->count++;
350 }
351 }
352}
353
WANG Cong832d1d52014-01-09 16:14:01 -0800354static int fw_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 struct sk_buff *skb, struct tcmsg *t)
356{
John Fastabende35a8ee2014-09-12 20:07:22 -0700357 struct fw_head *head = rtnl_dereference(tp->root);
Eric Dumazetcc7ec452011-01-19 19:26:56 +0000358 struct fw_filter *f = (struct fw_filter *)fh;
Arnaldo Carvalho de Melo27a884d2007-04-19 20:29:13 -0700359 unsigned char *b = skb_tail_pointer(skb);
Patrick McHardy4b3550ef2008-01-23 20:34:11 -0800360 struct nlattr *nest;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
362 if (f == NULL)
363 return skb->len;
364
365 t->tcm_handle = f->id;
366
367 if (!f->res.classid && !tcf_exts_is_available(&f->exts))
368 return skb->len;
369
Patrick McHardy4b3550ef2008-01-23 20:34:11 -0800370 nest = nla_nest_start(skb, TCA_OPTIONS);
371 if (nest == NULL)
372 goto nla_put_failure;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
David S. Miller1b34ec42012-03-29 05:11:39 -0400374 if (f->res.classid &&
375 nla_put_u32(skb, TCA_FW_CLASSID, f->res.classid))
376 goto nla_put_failure;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377#ifdef CONFIG_NET_CLS_IND
WANG Cong2519a602014-01-09 16:14:02 -0800378 if (f->ifindex) {
379 struct net_device *dev;
380 dev = __dev_get_by_index(net, f->ifindex);
381 if (dev && nla_put_string(skb, TCA_FW_INDEV, dev->name))
382 goto nla_put_failure;
383 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384#endif /* CONFIG_NET_CLS_IND */
David S. Miller1b34ec42012-03-29 05:11:39 -0400385 if (head->mask != 0xFFFFFFFF &&
386 nla_put_u32(skb, TCA_FW_MASK, head->mask))
387 goto nla_put_failure;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388
WANG Cong5da57f42013-12-15 20:15:07 -0800389 if (tcf_exts_dump(skb, &f->exts) < 0)
Patrick McHardyadd93b62008-01-22 22:11:33 -0800390 goto nla_put_failure;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
Patrick McHardy4b3550ef2008-01-23 20:34:11 -0800392 nla_nest_end(skb, nest);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393
WANG Cong5da57f42013-12-15 20:15:07 -0800394 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
Patrick McHardyadd93b62008-01-22 22:11:33 -0800395 goto nla_put_failure;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
397 return skb->len;
398
Patrick McHardyadd93b62008-01-22 22:11:33 -0800399nla_put_failure:
Arnaldo Carvalho de Melodc5fc572007-03-25 23:06:12 -0700400 nlmsg_trim(skb, b);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 return -1;
402}
403
Patrick McHardy2eb9d752008-01-22 22:10:42 -0800404static struct tcf_proto_ops cls_fw_ops __read_mostly = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 .kind = "fw",
406 .classify = fw_classify,
407 .init = fw_init,
408 .destroy = fw_destroy,
409 .get = fw_get,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 .change = fw_change,
411 .delete = fw_delete,
412 .walk = fw_walk,
413 .dump = fw_dump,
414 .owner = THIS_MODULE,
415};
416
417static int __init init_fw(void)
418{
419 return register_tcf_proto_ops(&cls_fw_ops);
420}
421
YOSHIFUJI Hideaki10297b92007-02-09 23:25:16 +0900422static void __exit exit_fw(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423{
424 unregister_tcf_proto_ops(&cls_fw_ops);
425}
426
427module_init(init_fw)
428module_exit(exit_fw)
429MODULE_LICENSE("GPL");