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Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* net/sched/sch_dsmark.c - Differentiated Services field marker */ |
2 | ||
3 | /* Written 1998-2000 by Werner Almesberger, EPFL ICA */ | |
4 | ||
5 | ||
1da177e4 LT |
6 | #include <linux/module.h> |
7 | #include <linux/init.h> | |
8 | #include <linux/types.h> | |
9 | #include <linux/string.h> | |
10 | #include <linux/errno.h> | |
11 | #include <linux/skbuff.h> | |
1da177e4 | 12 | #include <linux/rtnetlink.h> |
5b0ac72b | 13 | #include <linux/bitops.h> |
1da177e4 LT |
14 | #include <net/pkt_sched.h> |
15 | #include <net/dsfield.h> | |
16 | #include <net/inet_ecn.h> | |
17 | #include <asm/byteorder.h> | |
18 | ||
1da177e4 LT |
19 | /* |
20 | * classid class marking | |
21 | * ------- ----- ------- | |
22 | * n/a 0 n/a | |
23 | * x:0 1 use entry [0] | |
24 | * ... ... ... | |
25 | * x:y y>0 y+1 use entry [y] | |
26 | * ... ... ... | |
27 | * x:indices-1 indices use entry [indices-1] | |
28 | * ... ... ... | |
29 | * x:y y+1 use entry [y & (indices-1)] | |
30 | * ... ... ... | |
31 | * 0xffff 0x10000 use entry [indices-1] | |
32 | */ | |
33 | ||
34 | ||
35 | #define NO_DEFAULT_INDEX (1 << 16) | |
36 | ||
37 | struct dsmark_qdisc_data { | |
38 | struct Qdisc *q; | |
39 | struct tcf_proto *filter_list; | |
af0d1141 TG |
40 | u8 *mask; /* "owns" the array */ |
41 | u8 *value; | |
42 | u16 indices; | |
43 | u32 default_index; /* index range is 0...0xffff */ | |
1da177e4 LT |
44 | int set_tc_index; |
45 | }; | |
46 | ||
758cc43c TG |
47 | static inline int dsmark_valid_index(struct dsmark_qdisc_data *p, u16 index) |
48 | { | |
49 | return (index <= p->indices && index > 0); | |
50 | } | |
1da177e4 LT |
51 | |
52 | /* ------------------------- Class/flow operations ------------------------- */ | |
53 | ||
af0d1141 TG |
54 | static int dsmark_graft(struct Qdisc *sch, unsigned long arg, |
55 | struct Qdisc *new, struct Qdisc **old) | |
1da177e4 | 56 | { |
81da99ed | 57 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 58 | |
81da99ed | 59 | pr_debug("dsmark_graft(sch %p,[qdisc %p],new %p,old %p)\n", |
af0d1141 | 60 | sch, p, new, old); |
486b53e5 TG |
61 | |
62 | if (new == NULL) { | |
9f9afec4 PM |
63 | new = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops, |
64 | sch->handle); | |
486b53e5 TG |
65 | if (new == NULL) |
66 | new = &noop_qdisc; | |
67 | } | |
68 | ||
1da177e4 | 69 | sch_tree_lock(sch); |
af0d1141 | 70 | *old = xchg(&p->q, new); |
5e50da01 | 71 | qdisc_tree_decrease_qlen(*old, (*old)->q.qlen); |
af0d1141 | 72 | qdisc_reset(*old); |
af0d1141 TG |
73 | sch_tree_unlock(sch); |
74 | ||
10297b99 | 75 | return 0; |
1da177e4 LT |
76 | } |
77 | ||
1da177e4 LT |
78 | static struct Qdisc *dsmark_leaf(struct Qdisc *sch, unsigned long arg) |
79 | { | |
81da99ed SH |
80 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
81 | return p->q; | |
1da177e4 LT |
82 | } |
83 | ||
af0d1141 | 84 | static unsigned long dsmark_get(struct Qdisc *sch, u32 classid) |
1da177e4 | 85 | { |
81da99ed SH |
86 | pr_debug("dsmark_get(sch %p,[qdisc %p],classid %x)\n", |
87 | sch, qdisc_priv(sch), classid); | |
1da177e4 | 88 | |
af0d1141 | 89 | return TC_H_MIN(classid) + 1; |
1da177e4 LT |
90 | } |
91 | ||
1da177e4 | 92 | static unsigned long dsmark_bind_filter(struct Qdisc *sch, |
af0d1141 | 93 | unsigned long parent, u32 classid) |
1da177e4 | 94 | { |
af0d1141 | 95 | return dsmark_get(sch, classid); |
1da177e4 LT |
96 | } |
97 | ||
1da177e4 LT |
98 | static void dsmark_put(struct Qdisc *sch, unsigned long cl) |
99 | { | |
100 | } | |
101 | ||
27a3421e PM |
102 | static const struct nla_policy dsmark_policy[TCA_DSMARK_MAX + 1] = { |
103 | [TCA_DSMARK_INDICES] = { .type = NLA_U16 }, | |
104 | [TCA_DSMARK_DEFAULT_INDEX] = { .type = NLA_U16 }, | |
105 | [TCA_DSMARK_SET_TC_INDEX] = { .type = NLA_FLAG }, | |
106 | [TCA_DSMARK_MASK] = { .type = NLA_U8 }, | |
107 | [TCA_DSMARK_VALUE] = { .type = NLA_U8 }, | |
108 | }; | |
109 | ||
1da177e4 | 110 | static int dsmark_change(struct Qdisc *sch, u32 classid, u32 parent, |
1e90474c | 111 | struct nlattr **tca, unsigned long *arg) |
1da177e4 | 112 | { |
81da99ed | 113 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c PM |
114 | struct nlattr *opt = tca[TCA_OPTIONS]; |
115 | struct nlattr *tb[TCA_DSMARK_MAX + 1]; | |
758cc43c TG |
116 | int err = -EINVAL; |
117 | u8 mask = 0; | |
1da177e4 | 118 | |
81da99ed | 119 | pr_debug("dsmark_change(sch %p,[qdisc %p],classid %x,parent %x)," |
758cc43c TG |
120 | "arg 0x%lx\n", sch, p, classid, parent, *arg); |
121 | ||
122 | if (!dsmark_valid_index(p, *arg)) { | |
123 | err = -ENOENT; | |
1e90474c | 124 | goto errout; |
1da177e4 | 125 | } |
1da177e4 | 126 | |
cee63723 | 127 | if (!opt) |
1e90474c | 128 | goto errout; |
758cc43c | 129 | |
27a3421e | 130 | err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy); |
cee63723 | 131 | if (err < 0) |
27a3421e | 132 | goto errout; |
cee63723 | 133 | |
27a3421e | 134 | if (tb[TCA_DSMARK_MASK]) |
1e90474c | 135 | mask = nla_get_u8(tb[TCA_DSMARK_MASK]); |
27a3421e PM |
136 | |
137 | if (tb[TCA_DSMARK_VALUE]) | |
1e90474c | 138 | p->value[*arg-1] = nla_get_u8(tb[TCA_DSMARK_VALUE]); |
10297b99 | 139 | |
1e90474c | 140 | if (tb[TCA_DSMARK_MASK]) |
758cc43c TG |
141 | p->mask[*arg-1] = mask; |
142 | ||
143 | err = 0; | |
144 | ||
1e90474c | 145 | errout: |
758cc43c TG |
146 | return err; |
147 | } | |
1da177e4 | 148 | |
af0d1141 | 149 | static int dsmark_delete(struct Qdisc *sch, unsigned long arg) |
1da177e4 | 150 | { |
81da99ed | 151 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 152 | |
af0d1141 | 153 | if (!dsmark_valid_index(p, arg)) |
1da177e4 | 154 | return -EINVAL; |
10297b99 | 155 | |
1da177e4 LT |
156 | p->mask[arg-1] = 0xff; |
157 | p->value[arg-1] = 0; | |
af0d1141 | 158 | |
1da177e4 LT |
159 | return 0; |
160 | } | |
161 | ||
9d127fbd | 162 | static void dsmark_walk(struct Qdisc *sch, struct qdisc_walker *walker) |
1da177e4 | 163 | { |
81da99ed | 164 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 LT |
165 | int i; |
166 | ||
81da99ed | 167 | pr_debug("dsmark_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker); |
af0d1141 | 168 | |
1da177e4 LT |
169 | if (walker->stop) |
170 | return; | |
af0d1141 | 171 | |
1da177e4 LT |
172 | for (i = 0; i < p->indices; i++) { |
173 | if (p->mask[i] == 0xff && !p->value[i]) | |
0451eb07 | 174 | goto ignore; |
1da177e4 LT |
175 | if (walker->count >= walker->skip) { |
176 | if (walker->fn(sch, i+1, walker) < 0) { | |
177 | walker->stop = 1; | |
178 | break; | |
179 | } | |
180 | } | |
10297b99 | 181 | ignore: |
0451eb07 | 182 | walker->count++; |
10297b99 | 183 | } |
1da177e4 LT |
184 | } |
185 | ||
9d127fbd SH |
186 | static inline struct tcf_proto **dsmark_find_tcf(struct Qdisc *sch, |
187 | unsigned long cl) | |
1da177e4 | 188 | { |
81da99ed SH |
189 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
190 | return &p->filter_list; | |
1da177e4 LT |
191 | } |
192 | ||
1da177e4 LT |
193 | /* --------------------------- Qdisc operations ---------------------------- */ |
194 | ||
9d127fbd | 195 | static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch) |
1da177e4 | 196 | { |
81da99ed | 197 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
af0d1141 TG |
198 | int err; |
199 | ||
81da99ed | 200 | pr_debug("dsmark_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p); |
1da177e4 | 201 | |
1da177e4 | 202 | if (p->set_tc_index) { |
1da177e4 | 203 | switch (skb->protocol) { |
9d127fbd SH |
204 | case __constant_htons(ETH_P_IP): |
205 | if (skb_cow_head(skb, sizeof(struct iphdr))) | |
206 | goto drop; | |
4c30719f | 207 | |
9d127fbd SH |
208 | skb->tc_index = ipv4_get_dsfield(ip_hdr(skb)) |
209 | & ~INET_ECN_MASK; | |
210 | break; | |
4c30719f | 211 | |
9d127fbd SH |
212 | case __constant_htons(ETH_P_IPV6): |
213 | if (skb_cow_head(skb, sizeof(struct ipv6hdr))) | |
214 | goto drop; | |
4c30719f | 215 | |
9d127fbd SH |
216 | skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb)) |
217 | & ~INET_ECN_MASK; | |
218 | break; | |
219 | default: | |
220 | skb->tc_index = 0; | |
221 | break; | |
3ff50b79 | 222 | } |
1da177e4 | 223 | } |
af0d1141 TG |
224 | |
225 | if (TC_H_MAJ(skb->priority) == sch->handle) | |
1da177e4 | 226 | skb->tc_index = TC_H_MIN(skb->priority); |
af0d1141 TG |
227 | else { |
228 | struct tcf_result res; | |
229 | int result = tc_classify(skb, p->filter_list, &res); | |
230 | ||
81da99ed | 231 | pr_debug("result %d class 0x%04x\n", result, res.classid); |
af0d1141 | 232 | |
1da177e4 | 233 | switch (result) { |
f6853e2d PM |
234 | #ifdef CONFIG_NET_CLS_ACT |
235 | case TC_ACT_QUEUED: | |
236 | case TC_ACT_STOLEN: | |
237 | kfree_skb(skb); | |
238 | return NET_XMIT_SUCCESS; | |
4c30719f | 239 | |
f6853e2d | 240 | case TC_ACT_SHOT: |
4c30719f | 241 | goto drop; |
1da177e4 | 242 | #endif |
c3bc7cff | 243 | case TC_ACT_OK: |
f6853e2d PM |
244 | skb->tc_index = TC_H_MIN(res.classid); |
245 | break; | |
4c30719f | 246 | |
f6853e2d PM |
247 | default: |
248 | if (p->default_index != NO_DEFAULT_INDEX) | |
249 | skb->tc_index = p->default_index; | |
250 | break; | |
3ff50b79 | 251 | } |
1da177e4 | 252 | } |
1da177e4 | 253 | |
9d127fbd | 254 | err = p->q->enqueue(skb, p->q); |
af0d1141 | 255 | if (err != NET_XMIT_SUCCESS) { |
1da177e4 | 256 | sch->qstats.drops++; |
af0d1141 | 257 | return err; |
1da177e4 | 258 | } |
af0d1141 | 259 | |
1da177e4 LT |
260 | sch->bstats.bytes += skb->len; |
261 | sch->bstats.packets++; | |
262 | sch->q.qlen++; | |
1da177e4 | 263 | |
af0d1141 | 264 | return NET_XMIT_SUCCESS; |
4c30719f SH |
265 | |
266 | drop: | |
267 | kfree_skb(skb); | |
268 | sch->qstats.drops++; | |
269 | return NET_XMIT_BYPASS; | |
af0d1141 | 270 | } |
1da177e4 LT |
271 | |
272 | static struct sk_buff *dsmark_dequeue(struct Qdisc *sch) | |
273 | { | |
81da99ed | 274 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 275 | struct sk_buff *skb; |
af0d1141 TG |
276 | u32 index; |
277 | ||
81da99ed | 278 | pr_debug("dsmark_dequeue(sch %p,[qdisc %p])\n", sch, p); |
1da177e4 | 279 | |
1da177e4 | 280 | skb = p->q->ops->dequeue(p->q); |
af0d1141 | 281 | if (skb == NULL) |
1da177e4 | 282 | return NULL; |
af0d1141 | 283 | |
1da177e4 | 284 | sch->q.qlen--; |
af0d1141 TG |
285 | |
286 | index = skb->tc_index & (p->indices - 1); | |
81da99ed | 287 | pr_debug("index %d->%d\n", skb->tc_index, index); |
af0d1141 | 288 | |
1da177e4 | 289 | switch (skb->protocol) { |
9d127fbd SH |
290 | case __constant_htons(ETH_P_IP): |
291 | ipv4_change_dsfield(ip_hdr(skb), p->mask[index], | |
292 | p->value[index]); | |
1da177e4 | 293 | break; |
9d127fbd SH |
294 | case __constant_htons(ETH_P_IPV6): |
295 | ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index], | |
296 | p->value[index]); | |
1da177e4 | 297 | break; |
9d127fbd SH |
298 | default: |
299 | /* | |
300 | * Only complain if a change was actually attempted. | |
301 | * This way, we can send non-IP traffic through dsmark | |
302 | * and don't need yet another qdisc as a bypass. | |
303 | */ | |
304 | if (p->mask[index] != 0xff || p->value[index]) | |
305 | printk(KERN_WARNING | |
306 | "dsmark_dequeue: unsupported protocol %d\n", | |
307 | ntohs(skb->protocol)); | |
308 | break; | |
3ff50b79 | 309 | } |
af0d1141 | 310 | |
1da177e4 LT |
311 | return skb; |
312 | } | |
313 | ||
9d127fbd | 314 | static int dsmark_requeue(struct sk_buff *skb, struct Qdisc *sch) |
1da177e4 | 315 | { |
81da99ed | 316 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
af0d1141 | 317 | int err; |
1da177e4 | 318 | |
81da99ed | 319 | pr_debug("dsmark_requeue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p); |
af0d1141 TG |
320 | |
321 | err = p->q->ops->requeue(skb, p->q); | |
322 | if (err != NET_XMIT_SUCCESS) { | |
323 | sch->qstats.drops++; | |
324 | return err; | |
1da177e4 | 325 | } |
1da177e4 | 326 | |
af0d1141 TG |
327 | sch->q.qlen++; |
328 | sch->qstats.requeues++; | |
329 | ||
330 | return NET_XMIT_SUCCESS; | |
331 | } | |
1da177e4 LT |
332 | |
333 | static unsigned int dsmark_drop(struct Qdisc *sch) | |
334 | { | |
81da99ed | 335 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 336 | unsigned int len; |
10297b99 | 337 | |
81da99ed | 338 | pr_debug("dsmark_reset(sch %p,[qdisc %p])\n", sch, p); |
af0d1141 TG |
339 | |
340 | if (p->q->ops->drop == NULL) | |
1da177e4 | 341 | return 0; |
af0d1141 TG |
342 | |
343 | len = p->q->ops->drop(p->q); | |
344 | if (len) | |
345 | sch->q.qlen--; | |
346 | ||
1da177e4 LT |
347 | return len; |
348 | } | |
349 | ||
1e90474c | 350 | static int dsmark_init(struct Qdisc *sch, struct nlattr *opt) |
1da177e4 | 351 | { |
81da99ed | 352 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 353 | struct nlattr *tb[TCA_DSMARK_MAX + 1]; |
758cc43c TG |
354 | int err = -EINVAL; |
355 | u32 default_index = NO_DEFAULT_INDEX; | |
356 | u16 indices; | |
357 | u8 *mask; | |
358 | ||
81da99ed | 359 | pr_debug("dsmark_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt); |
758cc43c | 360 | |
cee63723 PM |
361 | if (!opt) |
362 | goto errout; | |
363 | ||
27a3421e | 364 | err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy); |
cee63723 | 365 | if (err < 0) |
758cc43c TG |
366 | goto errout; |
367 | ||
cee63723 | 368 | err = -EINVAL; |
1e90474c | 369 | indices = nla_get_u16(tb[TCA_DSMARK_INDICES]); |
5b0ac72b DM |
370 | |
371 | if (hweight32(indices) != 1) | |
758cc43c TG |
372 | goto errout; |
373 | ||
27a3421e | 374 | if (tb[TCA_DSMARK_DEFAULT_INDEX]) |
1e90474c | 375 | default_index = nla_get_u16(tb[TCA_DSMARK_DEFAULT_INDEX]); |
758cc43c TG |
376 | |
377 | mask = kmalloc(indices * 2, GFP_KERNEL); | |
378 | if (mask == NULL) { | |
379 | err = -ENOMEM; | |
380 | goto errout; | |
1da177e4 | 381 | } |
758cc43c TG |
382 | |
383 | p->mask = mask; | |
384 | memset(p->mask, 0xff, indices); | |
385 | ||
386 | p->value = p->mask + indices; | |
387 | memset(p->value, 0, indices); | |
388 | ||
389 | p->indices = indices; | |
390 | p->default_index = default_index; | |
1e90474c | 391 | p->set_tc_index = nla_get_flag(tb[TCA_DSMARK_SET_TC_INDEX]); |
758cc43c | 392 | |
9f9afec4 | 393 | p->q = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops, sch->handle); |
758cc43c | 394 | if (p->q == NULL) |
1da177e4 | 395 | p->q = &noop_qdisc; |
758cc43c | 396 | |
81da99ed | 397 | pr_debug("dsmark_init: qdisc %p\n", p->q); |
758cc43c TG |
398 | |
399 | err = 0; | |
400 | errout: | |
758cc43c | 401 | return err; |
1da177e4 LT |
402 | } |
403 | ||
1da177e4 LT |
404 | static void dsmark_reset(struct Qdisc *sch) |
405 | { | |
81da99ed | 406 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 407 | |
81da99ed | 408 | pr_debug("dsmark_reset(sch %p,[qdisc %p])\n", sch, p); |
1da177e4 LT |
409 | qdisc_reset(p->q); |
410 | sch->q.qlen = 0; | |
411 | } | |
412 | ||
1da177e4 LT |
413 | static void dsmark_destroy(struct Qdisc *sch) |
414 | { | |
81da99ed | 415 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 416 | |
81da99ed | 417 | pr_debug("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p); |
af0d1141 | 418 | |
a48b5a61 | 419 | tcf_destroy_chain(p->filter_list); |
1da177e4 LT |
420 | qdisc_destroy(p->q); |
421 | kfree(p->mask); | |
422 | } | |
423 | ||
1da177e4 | 424 | static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl, |
02f23f09 | 425 | struct sk_buff *skb, struct tcmsg *tcm) |
1da177e4 | 426 | { |
81da99ed | 427 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 428 | struct nlattr *opts = NULL; |
1da177e4 | 429 | |
81da99ed | 430 | pr_debug("dsmark_dump_class(sch %p,[qdisc %p],class %ld\n", sch, p, cl); |
02f23f09 TG |
431 | |
432 | if (!dsmark_valid_index(p, cl)) | |
1da177e4 | 433 | return -EINVAL; |
02f23f09 TG |
434 | |
435 | tcm->tcm_handle = TC_H_MAKE(TC_H_MAJ(sch->handle), cl-1); | |
cdc7f8e3 | 436 | tcm->tcm_info = p->q->handle; |
02f23f09 | 437 | |
1e90474c PM |
438 | opts = nla_nest_start(skb, TCA_OPTIONS); |
439 | if (opts == NULL) | |
440 | goto nla_put_failure; | |
441 | NLA_PUT_U8(skb, TCA_DSMARK_MASK, p->mask[cl-1]); | |
442 | NLA_PUT_U8(skb, TCA_DSMARK_VALUE, p->value[cl-1]); | |
02f23f09 | 443 | |
1e90474c | 444 | return nla_nest_end(skb, opts); |
1da177e4 | 445 | |
1e90474c PM |
446 | nla_put_failure: |
447 | return nla_nest_cancel(skb, opts); | |
1da177e4 LT |
448 | } |
449 | ||
450 | static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb) | |
451 | { | |
81da99ed | 452 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 453 | struct nlattr *opts = NULL; |
1da177e4 | 454 | |
1e90474c PM |
455 | opts = nla_nest_start(skb, TCA_OPTIONS); |
456 | if (opts == NULL) | |
457 | goto nla_put_failure; | |
458 | NLA_PUT_U16(skb, TCA_DSMARK_INDICES, p->indices); | |
02f23f09 TG |
459 | |
460 | if (p->default_index != NO_DEFAULT_INDEX) | |
1e90474c | 461 | NLA_PUT_U16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index); |
1da177e4 | 462 | |
1da177e4 | 463 | if (p->set_tc_index) |
1e90474c | 464 | NLA_PUT_FLAG(skb, TCA_DSMARK_SET_TC_INDEX); |
02f23f09 | 465 | |
1e90474c | 466 | return nla_nest_end(skb, opts); |
1da177e4 | 467 | |
1e90474c PM |
468 | nla_put_failure: |
469 | return nla_nest_cancel(skb, opts); | |
1da177e4 LT |
470 | } |
471 | ||
20fea08b | 472 | static const struct Qdisc_class_ops dsmark_class_ops = { |
1da177e4 LT |
473 | .graft = dsmark_graft, |
474 | .leaf = dsmark_leaf, | |
475 | .get = dsmark_get, | |
476 | .put = dsmark_put, | |
477 | .change = dsmark_change, | |
478 | .delete = dsmark_delete, | |
479 | .walk = dsmark_walk, | |
480 | .tcf_chain = dsmark_find_tcf, | |
481 | .bind_tcf = dsmark_bind_filter, | |
482 | .unbind_tcf = dsmark_put, | |
483 | .dump = dsmark_dump_class, | |
484 | }; | |
485 | ||
20fea08b | 486 | static struct Qdisc_ops dsmark_qdisc_ops __read_mostly = { |
1da177e4 LT |
487 | .next = NULL, |
488 | .cl_ops = &dsmark_class_ops, | |
489 | .id = "dsmark", | |
490 | .priv_size = sizeof(struct dsmark_qdisc_data), | |
491 | .enqueue = dsmark_enqueue, | |
492 | .dequeue = dsmark_dequeue, | |
493 | .requeue = dsmark_requeue, | |
494 | .drop = dsmark_drop, | |
495 | .init = dsmark_init, | |
496 | .reset = dsmark_reset, | |
497 | .destroy = dsmark_destroy, | |
498 | .change = NULL, | |
499 | .dump = dsmark_dump, | |
500 | .owner = THIS_MODULE, | |
501 | }; | |
502 | ||
503 | static int __init dsmark_module_init(void) | |
504 | { | |
505 | return register_qdisc(&dsmark_qdisc_ops); | |
506 | } | |
af0d1141 | 507 | |
10297b99 | 508 | static void __exit dsmark_module_exit(void) |
1da177e4 LT |
509 | { |
510 | unregister_qdisc(&dsmark_qdisc_ops); | |
511 | } | |
af0d1141 | 512 | |
1da177e4 LT |
513 | module_init(dsmark_module_init) |
514 | module_exit(dsmark_module_exit) | |
af0d1141 | 515 | |
1da177e4 | 516 | MODULE_LICENSE("GPL"); |