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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) { | |
5ce2d488 | 63 | new = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue, |
bb949fbd | 64 | &pfifo_qdisc_ops, |
9f9afec4 | 65 | sch->handle); |
486b53e5 TG |
66 | if (new == NULL) |
67 | new = &noop_qdisc; | |
68 | } | |
69 | ||
1da177e4 | 70 | sch_tree_lock(sch); |
af0d1141 | 71 | *old = xchg(&p->q, new); |
5e50da01 | 72 | qdisc_tree_decrease_qlen(*old, (*old)->q.qlen); |
af0d1141 | 73 | qdisc_reset(*old); |
af0d1141 TG |
74 | sch_tree_unlock(sch); |
75 | ||
10297b99 | 76 | return 0; |
1da177e4 LT |
77 | } |
78 | ||
1da177e4 LT |
79 | static struct Qdisc *dsmark_leaf(struct Qdisc *sch, unsigned long arg) |
80 | { | |
81da99ed SH |
81 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
82 | return p->q; | |
1da177e4 LT |
83 | } |
84 | ||
af0d1141 | 85 | static unsigned long dsmark_get(struct Qdisc *sch, u32 classid) |
1da177e4 | 86 | { |
81da99ed SH |
87 | pr_debug("dsmark_get(sch %p,[qdisc %p],classid %x)\n", |
88 | sch, qdisc_priv(sch), classid); | |
1da177e4 | 89 | |
af0d1141 | 90 | return TC_H_MIN(classid) + 1; |
1da177e4 LT |
91 | } |
92 | ||
1da177e4 | 93 | static unsigned long dsmark_bind_filter(struct Qdisc *sch, |
af0d1141 | 94 | unsigned long parent, u32 classid) |
1da177e4 | 95 | { |
af0d1141 | 96 | return dsmark_get(sch, classid); |
1da177e4 LT |
97 | } |
98 | ||
1da177e4 LT |
99 | static void dsmark_put(struct Qdisc *sch, unsigned long cl) |
100 | { | |
101 | } | |
102 | ||
27a3421e PM |
103 | static const struct nla_policy dsmark_policy[TCA_DSMARK_MAX + 1] = { |
104 | [TCA_DSMARK_INDICES] = { .type = NLA_U16 }, | |
105 | [TCA_DSMARK_DEFAULT_INDEX] = { .type = NLA_U16 }, | |
106 | [TCA_DSMARK_SET_TC_INDEX] = { .type = NLA_FLAG }, | |
107 | [TCA_DSMARK_MASK] = { .type = NLA_U8 }, | |
108 | [TCA_DSMARK_VALUE] = { .type = NLA_U8 }, | |
109 | }; | |
110 | ||
1da177e4 | 111 | static int dsmark_change(struct Qdisc *sch, u32 classid, u32 parent, |
1e90474c | 112 | struct nlattr **tca, unsigned long *arg) |
1da177e4 | 113 | { |
81da99ed | 114 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c PM |
115 | struct nlattr *opt = tca[TCA_OPTIONS]; |
116 | struct nlattr *tb[TCA_DSMARK_MAX + 1]; | |
758cc43c TG |
117 | int err = -EINVAL; |
118 | u8 mask = 0; | |
1da177e4 | 119 | |
81da99ed | 120 | pr_debug("dsmark_change(sch %p,[qdisc %p],classid %x,parent %x)," |
758cc43c TG |
121 | "arg 0x%lx\n", sch, p, classid, parent, *arg); |
122 | ||
123 | if (!dsmark_valid_index(p, *arg)) { | |
124 | err = -ENOENT; | |
1e90474c | 125 | goto errout; |
1da177e4 | 126 | } |
1da177e4 | 127 | |
cee63723 | 128 | if (!opt) |
1e90474c | 129 | goto errout; |
758cc43c | 130 | |
27a3421e | 131 | err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy); |
cee63723 | 132 | if (err < 0) |
27a3421e | 133 | goto errout; |
cee63723 | 134 | |
27a3421e | 135 | if (tb[TCA_DSMARK_MASK]) |
1e90474c | 136 | mask = nla_get_u8(tb[TCA_DSMARK_MASK]); |
27a3421e PM |
137 | |
138 | if (tb[TCA_DSMARK_VALUE]) | |
1e90474c | 139 | p->value[*arg-1] = nla_get_u8(tb[TCA_DSMARK_VALUE]); |
10297b99 | 140 | |
1e90474c | 141 | if (tb[TCA_DSMARK_MASK]) |
758cc43c TG |
142 | p->mask[*arg-1] = mask; |
143 | ||
144 | err = 0; | |
145 | ||
1e90474c | 146 | errout: |
758cc43c TG |
147 | return err; |
148 | } | |
1da177e4 | 149 | |
af0d1141 | 150 | static int dsmark_delete(struct Qdisc *sch, unsigned long arg) |
1da177e4 | 151 | { |
81da99ed | 152 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 153 | |
af0d1141 | 154 | if (!dsmark_valid_index(p, arg)) |
1da177e4 | 155 | return -EINVAL; |
10297b99 | 156 | |
1da177e4 LT |
157 | p->mask[arg-1] = 0xff; |
158 | p->value[arg-1] = 0; | |
af0d1141 | 159 | |
1da177e4 LT |
160 | return 0; |
161 | } | |
162 | ||
9d127fbd | 163 | static void dsmark_walk(struct Qdisc *sch, struct qdisc_walker *walker) |
1da177e4 | 164 | { |
81da99ed | 165 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 LT |
166 | int i; |
167 | ||
81da99ed | 168 | pr_debug("dsmark_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker); |
af0d1141 | 169 | |
1da177e4 LT |
170 | if (walker->stop) |
171 | return; | |
af0d1141 | 172 | |
1da177e4 LT |
173 | for (i = 0; i < p->indices; i++) { |
174 | if (p->mask[i] == 0xff && !p->value[i]) | |
0451eb07 | 175 | goto ignore; |
1da177e4 LT |
176 | if (walker->count >= walker->skip) { |
177 | if (walker->fn(sch, i+1, walker) < 0) { | |
178 | walker->stop = 1; | |
179 | break; | |
180 | } | |
181 | } | |
10297b99 | 182 | ignore: |
0451eb07 | 183 | walker->count++; |
10297b99 | 184 | } |
1da177e4 LT |
185 | } |
186 | ||
9d127fbd SH |
187 | static inline struct tcf_proto **dsmark_find_tcf(struct Qdisc *sch, |
188 | unsigned long cl) | |
1da177e4 | 189 | { |
81da99ed SH |
190 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
191 | return &p->filter_list; | |
1da177e4 LT |
192 | } |
193 | ||
1da177e4 LT |
194 | /* --------------------------- Qdisc operations ---------------------------- */ |
195 | ||
9d127fbd | 196 | static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch) |
1da177e4 | 197 | { |
81da99ed | 198 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
af0d1141 TG |
199 | int err; |
200 | ||
81da99ed | 201 | pr_debug("dsmark_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p); |
1da177e4 | 202 | |
1da177e4 | 203 | if (p->set_tc_index) { |
1da177e4 | 204 | switch (skb->protocol) { |
9d127fbd SH |
205 | case __constant_htons(ETH_P_IP): |
206 | if (skb_cow_head(skb, sizeof(struct iphdr))) | |
207 | goto drop; | |
4c30719f | 208 | |
9d127fbd SH |
209 | skb->tc_index = ipv4_get_dsfield(ip_hdr(skb)) |
210 | & ~INET_ECN_MASK; | |
211 | break; | |
4c30719f | 212 | |
9d127fbd SH |
213 | case __constant_htons(ETH_P_IPV6): |
214 | if (skb_cow_head(skb, sizeof(struct ipv6hdr))) | |
215 | goto drop; | |
4c30719f | 216 | |
9d127fbd SH |
217 | skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb)) |
218 | & ~INET_ECN_MASK; | |
219 | break; | |
220 | default: | |
221 | skb->tc_index = 0; | |
222 | break; | |
3ff50b79 | 223 | } |
1da177e4 | 224 | } |
af0d1141 TG |
225 | |
226 | if (TC_H_MAJ(skb->priority) == sch->handle) | |
1da177e4 | 227 | skb->tc_index = TC_H_MIN(skb->priority); |
af0d1141 TG |
228 | else { |
229 | struct tcf_result res; | |
230 | int result = tc_classify(skb, p->filter_list, &res); | |
231 | ||
81da99ed | 232 | pr_debug("result %d class 0x%04x\n", result, res.classid); |
af0d1141 | 233 | |
1da177e4 | 234 | switch (result) { |
f6853e2d PM |
235 | #ifdef CONFIG_NET_CLS_ACT |
236 | case TC_ACT_QUEUED: | |
237 | case TC_ACT_STOLEN: | |
238 | kfree_skb(skb); | |
239 | return NET_XMIT_SUCCESS; | |
4c30719f | 240 | |
f6853e2d | 241 | case TC_ACT_SHOT: |
4c30719f | 242 | goto drop; |
1da177e4 | 243 | #endif |
c3bc7cff | 244 | case TC_ACT_OK: |
f6853e2d PM |
245 | skb->tc_index = TC_H_MIN(res.classid); |
246 | break; | |
4c30719f | 247 | |
f6853e2d PM |
248 | default: |
249 | if (p->default_index != NO_DEFAULT_INDEX) | |
250 | skb->tc_index = p->default_index; | |
251 | break; | |
3ff50b79 | 252 | } |
1da177e4 | 253 | } |
1da177e4 | 254 | |
5f86173b | 255 | err = qdisc_enqueue(skb, p->q); |
af0d1141 | 256 | if (err != NET_XMIT_SUCCESS) { |
1da177e4 | 257 | sch->qstats.drops++; |
af0d1141 | 258 | return err; |
1da177e4 | 259 | } |
af0d1141 | 260 | |
0abf77e5 | 261 | sch->bstats.bytes += qdisc_pkt_len(skb); |
1da177e4 LT |
262 | sch->bstats.packets++; |
263 | sch->q.qlen++; | |
1da177e4 | 264 | |
af0d1141 | 265 | return NET_XMIT_SUCCESS; |
4c30719f SH |
266 | |
267 | drop: | |
268 | kfree_skb(skb); | |
269 | sch->qstats.drops++; | |
270 | return NET_XMIT_BYPASS; | |
af0d1141 | 271 | } |
1da177e4 LT |
272 | |
273 | static struct sk_buff *dsmark_dequeue(struct Qdisc *sch) | |
274 | { | |
81da99ed | 275 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 276 | struct sk_buff *skb; |
af0d1141 TG |
277 | u32 index; |
278 | ||
81da99ed | 279 | pr_debug("dsmark_dequeue(sch %p,[qdisc %p])\n", sch, p); |
1da177e4 | 280 | |
1da177e4 | 281 | skb = p->q->ops->dequeue(p->q); |
af0d1141 | 282 | if (skb == NULL) |
1da177e4 | 283 | return NULL; |
af0d1141 | 284 | |
1da177e4 | 285 | sch->q.qlen--; |
af0d1141 TG |
286 | |
287 | index = skb->tc_index & (p->indices - 1); | |
81da99ed | 288 | pr_debug("index %d->%d\n", skb->tc_index, index); |
af0d1141 | 289 | |
1da177e4 | 290 | switch (skb->protocol) { |
9d127fbd SH |
291 | case __constant_htons(ETH_P_IP): |
292 | ipv4_change_dsfield(ip_hdr(skb), p->mask[index], | |
293 | p->value[index]); | |
1da177e4 | 294 | break; |
9d127fbd SH |
295 | case __constant_htons(ETH_P_IPV6): |
296 | ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index], | |
297 | p->value[index]); | |
1da177e4 | 298 | break; |
9d127fbd SH |
299 | default: |
300 | /* | |
301 | * Only complain if a change was actually attempted. | |
302 | * This way, we can send non-IP traffic through dsmark | |
303 | * and don't need yet another qdisc as a bypass. | |
304 | */ | |
305 | if (p->mask[index] != 0xff || p->value[index]) | |
306 | printk(KERN_WARNING | |
307 | "dsmark_dequeue: unsupported protocol %d\n", | |
308 | ntohs(skb->protocol)); | |
309 | break; | |
3ff50b79 | 310 | } |
af0d1141 | 311 | |
1da177e4 LT |
312 | return skb; |
313 | } | |
314 | ||
9d127fbd | 315 | static int dsmark_requeue(struct sk_buff *skb, struct Qdisc *sch) |
1da177e4 | 316 | { |
81da99ed | 317 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
af0d1141 | 318 | int err; |
1da177e4 | 319 | |
81da99ed | 320 | pr_debug("dsmark_requeue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p); |
af0d1141 TG |
321 | |
322 | err = p->q->ops->requeue(skb, p->q); | |
323 | if (err != NET_XMIT_SUCCESS) { | |
324 | sch->qstats.drops++; | |
325 | return err; | |
1da177e4 | 326 | } |
1da177e4 | 327 | |
af0d1141 TG |
328 | sch->q.qlen++; |
329 | sch->qstats.requeues++; | |
330 | ||
331 | return NET_XMIT_SUCCESS; | |
332 | } | |
1da177e4 LT |
333 | |
334 | static unsigned int dsmark_drop(struct Qdisc *sch) | |
335 | { | |
81da99ed | 336 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 337 | unsigned int len; |
10297b99 | 338 | |
81da99ed | 339 | pr_debug("dsmark_reset(sch %p,[qdisc %p])\n", sch, p); |
af0d1141 TG |
340 | |
341 | if (p->q->ops->drop == NULL) | |
1da177e4 | 342 | return 0; |
af0d1141 TG |
343 | |
344 | len = p->q->ops->drop(p->q); | |
345 | if (len) | |
346 | sch->q.qlen--; | |
347 | ||
1da177e4 LT |
348 | return len; |
349 | } | |
350 | ||
1e90474c | 351 | static int dsmark_init(struct Qdisc *sch, struct nlattr *opt) |
1da177e4 | 352 | { |
81da99ed | 353 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 354 | struct nlattr *tb[TCA_DSMARK_MAX + 1]; |
758cc43c TG |
355 | int err = -EINVAL; |
356 | u32 default_index = NO_DEFAULT_INDEX; | |
357 | u16 indices; | |
358 | u8 *mask; | |
359 | ||
81da99ed | 360 | pr_debug("dsmark_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt); |
758cc43c | 361 | |
cee63723 PM |
362 | if (!opt) |
363 | goto errout; | |
364 | ||
27a3421e | 365 | err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy); |
cee63723 | 366 | if (err < 0) |
758cc43c TG |
367 | goto errout; |
368 | ||
cee63723 | 369 | err = -EINVAL; |
1e90474c | 370 | indices = nla_get_u16(tb[TCA_DSMARK_INDICES]); |
5b0ac72b DM |
371 | |
372 | if (hweight32(indices) != 1) | |
758cc43c TG |
373 | goto errout; |
374 | ||
27a3421e | 375 | if (tb[TCA_DSMARK_DEFAULT_INDEX]) |
1e90474c | 376 | default_index = nla_get_u16(tb[TCA_DSMARK_DEFAULT_INDEX]); |
758cc43c TG |
377 | |
378 | mask = kmalloc(indices * 2, GFP_KERNEL); | |
379 | if (mask == NULL) { | |
380 | err = -ENOMEM; | |
381 | goto errout; | |
1da177e4 | 382 | } |
758cc43c TG |
383 | |
384 | p->mask = mask; | |
385 | memset(p->mask, 0xff, indices); | |
386 | ||
387 | p->value = p->mask + indices; | |
388 | memset(p->value, 0, indices); | |
389 | ||
390 | p->indices = indices; | |
391 | p->default_index = default_index; | |
1e90474c | 392 | p->set_tc_index = nla_get_flag(tb[TCA_DSMARK_SET_TC_INDEX]); |
758cc43c | 393 | |
5ce2d488 | 394 | p->q = qdisc_create_dflt(qdisc_dev(sch), sch->dev_queue, |
bb949fbd | 395 | &pfifo_qdisc_ops, sch->handle); |
758cc43c | 396 | if (p->q == NULL) |
1da177e4 | 397 | p->q = &noop_qdisc; |
758cc43c | 398 | |
81da99ed | 399 | pr_debug("dsmark_init: qdisc %p\n", p->q); |
758cc43c TG |
400 | |
401 | err = 0; | |
402 | errout: | |
758cc43c | 403 | return err; |
1da177e4 LT |
404 | } |
405 | ||
1da177e4 LT |
406 | static void dsmark_reset(struct Qdisc *sch) |
407 | { | |
81da99ed | 408 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 409 | |
81da99ed | 410 | pr_debug("dsmark_reset(sch %p,[qdisc %p])\n", sch, p); |
1da177e4 LT |
411 | qdisc_reset(p->q); |
412 | sch->q.qlen = 0; | |
413 | } | |
414 | ||
1da177e4 LT |
415 | static void dsmark_destroy(struct Qdisc *sch) |
416 | { | |
81da99ed | 417 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 418 | |
81da99ed | 419 | pr_debug("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p); |
af0d1141 | 420 | |
ff31ab56 | 421 | tcf_destroy_chain(&p->filter_list); |
1da177e4 LT |
422 | qdisc_destroy(p->q); |
423 | kfree(p->mask); | |
424 | } | |
425 | ||
1da177e4 | 426 | static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl, |
02f23f09 | 427 | struct sk_buff *skb, struct tcmsg *tcm) |
1da177e4 | 428 | { |
81da99ed | 429 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 430 | struct nlattr *opts = NULL; |
1da177e4 | 431 | |
81da99ed | 432 | pr_debug("dsmark_dump_class(sch %p,[qdisc %p],class %ld\n", sch, p, cl); |
02f23f09 TG |
433 | |
434 | if (!dsmark_valid_index(p, cl)) | |
1da177e4 | 435 | return -EINVAL; |
02f23f09 TG |
436 | |
437 | tcm->tcm_handle = TC_H_MAKE(TC_H_MAJ(sch->handle), cl-1); | |
cdc7f8e3 | 438 | tcm->tcm_info = p->q->handle; |
02f23f09 | 439 | |
1e90474c PM |
440 | opts = nla_nest_start(skb, TCA_OPTIONS); |
441 | if (opts == NULL) | |
442 | goto nla_put_failure; | |
443 | NLA_PUT_U8(skb, TCA_DSMARK_MASK, p->mask[cl-1]); | |
444 | NLA_PUT_U8(skb, TCA_DSMARK_VALUE, p->value[cl-1]); | |
02f23f09 | 445 | |
1e90474c | 446 | return nla_nest_end(skb, opts); |
1da177e4 | 447 | |
1e90474c | 448 | nla_put_failure: |
bc3ed28c TG |
449 | nla_nest_cancel(skb, opts); |
450 | return -EMSGSIZE; | |
1da177e4 LT |
451 | } |
452 | ||
453 | static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb) | |
454 | { | |
81da99ed | 455 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 456 | struct nlattr *opts = NULL; |
1da177e4 | 457 | |
1e90474c PM |
458 | opts = nla_nest_start(skb, TCA_OPTIONS); |
459 | if (opts == NULL) | |
460 | goto nla_put_failure; | |
461 | NLA_PUT_U16(skb, TCA_DSMARK_INDICES, p->indices); | |
02f23f09 TG |
462 | |
463 | if (p->default_index != NO_DEFAULT_INDEX) | |
1e90474c | 464 | NLA_PUT_U16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index); |
1da177e4 | 465 | |
1da177e4 | 466 | if (p->set_tc_index) |
1e90474c | 467 | NLA_PUT_FLAG(skb, TCA_DSMARK_SET_TC_INDEX); |
02f23f09 | 468 | |
1e90474c | 469 | return nla_nest_end(skb, opts); |
1da177e4 | 470 | |
1e90474c | 471 | nla_put_failure: |
bc3ed28c TG |
472 | nla_nest_cancel(skb, opts); |
473 | return -EMSGSIZE; | |
1da177e4 LT |
474 | } |
475 | ||
20fea08b | 476 | static const struct Qdisc_class_ops dsmark_class_ops = { |
1da177e4 LT |
477 | .graft = dsmark_graft, |
478 | .leaf = dsmark_leaf, | |
479 | .get = dsmark_get, | |
480 | .put = dsmark_put, | |
481 | .change = dsmark_change, | |
482 | .delete = dsmark_delete, | |
483 | .walk = dsmark_walk, | |
484 | .tcf_chain = dsmark_find_tcf, | |
485 | .bind_tcf = dsmark_bind_filter, | |
486 | .unbind_tcf = dsmark_put, | |
487 | .dump = dsmark_dump_class, | |
488 | }; | |
489 | ||
20fea08b | 490 | static struct Qdisc_ops dsmark_qdisc_ops __read_mostly = { |
1da177e4 LT |
491 | .next = NULL, |
492 | .cl_ops = &dsmark_class_ops, | |
493 | .id = "dsmark", | |
494 | .priv_size = sizeof(struct dsmark_qdisc_data), | |
495 | .enqueue = dsmark_enqueue, | |
496 | .dequeue = dsmark_dequeue, | |
497 | .requeue = dsmark_requeue, | |
498 | .drop = dsmark_drop, | |
499 | .init = dsmark_init, | |
500 | .reset = dsmark_reset, | |
501 | .destroy = dsmark_destroy, | |
502 | .change = NULL, | |
503 | .dump = dsmark_dump, | |
504 | .owner = THIS_MODULE, | |
505 | }; | |
506 | ||
507 | static int __init dsmark_module_init(void) | |
508 | { | |
509 | return register_qdisc(&dsmark_qdisc_ops); | |
510 | } | |
af0d1141 | 511 | |
10297b99 | 512 | static void __exit dsmark_module_exit(void) |
1da177e4 LT |
513 | { |
514 | unregister_qdisc(&dsmark_qdisc_ops); | |
515 | } | |
af0d1141 | 516 | |
1da177e4 LT |
517 | module_init(dsmark_module_init) |
518 | module_exit(dsmark_module_exit) | |
af0d1141 | 519 | |
1da177e4 | 520 | MODULE_LICENSE("GPL"); |