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> | |
5a0e3ad6 | 8 | #include <linux/slab.h> |
1da177e4 LT |
9 | #include <linux/types.h> |
10 | #include <linux/string.h> | |
11 | #include <linux/errno.h> | |
12 | #include <linux/skbuff.h> | |
1da177e4 | 13 | #include <linux/rtnetlink.h> |
5b0ac72b | 14 | #include <linux/bitops.h> |
1da177e4 LT |
15 | #include <net/pkt_sched.h> |
16 | #include <net/dsfield.h> | |
17 | #include <net/inet_ecn.h> | |
18 | #include <asm/byteorder.h> | |
19 | ||
1da177e4 LT |
20 | /* |
21 | * classid class marking | |
22 | * ------- ----- ------- | |
23 | * n/a 0 n/a | |
24 | * x:0 1 use entry [0] | |
25 | * ... ... ... | |
26 | * x:y y>0 y+1 use entry [y] | |
27 | * ... ... ... | |
28 | * x:indices-1 indices use entry [indices-1] | |
29 | * ... ... ... | |
30 | * x:y y+1 use entry [y & (indices-1)] | |
31 | * ... ... ... | |
32 | * 0xffff 0x10000 use entry [indices-1] | |
33 | */ | |
34 | ||
35 | ||
36 | #define NO_DEFAULT_INDEX (1 << 16) | |
37 | ||
38 | struct dsmark_qdisc_data { | |
39 | struct Qdisc *q; | |
40 | struct tcf_proto *filter_list; | |
af0d1141 TG |
41 | u8 *mask; /* "owns" the array */ |
42 | u8 *value; | |
43 | u16 indices; | |
44 | u32 default_index; /* index range is 0...0xffff */ | |
1da177e4 LT |
45 | int set_tc_index; |
46 | }; | |
47 | ||
758cc43c TG |
48 | static inline int dsmark_valid_index(struct dsmark_qdisc_data *p, u16 index) |
49 | { | |
17569fae | 50 | return index <= p->indices && index > 0; |
758cc43c | 51 | } |
1da177e4 LT |
52 | |
53 | /* ------------------------- Class/flow operations ------------------------- */ | |
54 | ||
af0d1141 TG |
55 | static int dsmark_graft(struct Qdisc *sch, unsigned long arg, |
56 | struct Qdisc *new, struct Qdisc **old) | |
1da177e4 | 57 | { |
81da99ed | 58 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 59 | |
c76f2a2c YY |
60 | pr_debug("%s(sch %p,[qdisc %p],new %p,old %p)\n", |
61 | __func__, sch, p, new, old); | |
486b53e5 TG |
62 | |
63 | if (new == NULL) { | |
3511c913 | 64 | new = qdisc_create_dflt(sch->dev_queue, &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); |
b94c8afc PM |
71 | *old = p->q; |
72 | p->q = new; | |
5e50da01 | 73 | qdisc_tree_decrease_qlen(*old, (*old)->q.qlen); |
af0d1141 | 74 | qdisc_reset(*old); |
af0d1141 TG |
75 | sch_tree_unlock(sch); |
76 | ||
10297b99 | 77 | return 0; |
1da177e4 LT |
78 | } |
79 | ||
1da177e4 LT |
80 | static struct Qdisc *dsmark_leaf(struct Qdisc *sch, unsigned long arg) |
81 | { | |
81da99ed SH |
82 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
83 | return p->q; | |
1da177e4 LT |
84 | } |
85 | ||
af0d1141 | 86 | static unsigned long dsmark_get(struct Qdisc *sch, u32 classid) |
1da177e4 | 87 | { |
c76f2a2c YY |
88 | pr_debug("%s(sch %p,[qdisc %p],classid %x)\n", |
89 | __func__, sch, qdisc_priv(sch), classid); | |
1da177e4 | 90 | |
af0d1141 | 91 | return TC_H_MIN(classid) + 1; |
1da177e4 LT |
92 | } |
93 | ||
1da177e4 | 94 | static unsigned long dsmark_bind_filter(struct Qdisc *sch, |
af0d1141 | 95 | unsigned long parent, u32 classid) |
1da177e4 | 96 | { |
af0d1141 | 97 | return dsmark_get(sch, classid); |
1da177e4 LT |
98 | } |
99 | ||
1da177e4 LT |
100 | static void dsmark_put(struct Qdisc *sch, unsigned long cl) |
101 | { | |
102 | } | |
103 | ||
27a3421e PM |
104 | static const struct nla_policy dsmark_policy[TCA_DSMARK_MAX + 1] = { |
105 | [TCA_DSMARK_INDICES] = { .type = NLA_U16 }, | |
106 | [TCA_DSMARK_DEFAULT_INDEX] = { .type = NLA_U16 }, | |
107 | [TCA_DSMARK_SET_TC_INDEX] = { .type = NLA_FLAG }, | |
108 | [TCA_DSMARK_MASK] = { .type = NLA_U8 }, | |
109 | [TCA_DSMARK_VALUE] = { .type = NLA_U8 }, | |
110 | }; | |
111 | ||
1da177e4 | 112 | static int dsmark_change(struct Qdisc *sch, u32 classid, u32 parent, |
1e90474c | 113 | struct nlattr **tca, unsigned long *arg) |
1da177e4 | 114 | { |
81da99ed | 115 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c PM |
116 | struct nlattr *opt = tca[TCA_OPTIONS]; |
117 | struct nlattr *tb[TCA_DSMARK_MAX + 1]; | |
758cc43c TG |
118 | int err = -EINVAL; |
119 | u8 mask = 0; | |
1da177e4 | 120 | |
c76f2a2c YY |
121 | pr_debug("%s(sch %p,[qdisc %p],classid %x,parent %x), arg 0x%lx\n", |
122 | __func__, sch, p, classid, parent, *arg); | |
758cc43c TG |
123 | |
124 | if (!dsmark_valid_index(p, *arg)) { | |
125 | err = -ENOENT; | |
1e90474c | 126 | goto errout; |
1da177e4 | 127 | } |
1da177e4 | 128 | |
cee63723 | 129 | if (!opt) |
1e90474c | 130 | goto errout; |
758cc43c | 131 | |
27a3421e | 132 | err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy); |
cee63723 | 133 | if (err < 0) |
27a3421e | 134 | goto errout; |
cee63723 | 135 | |
27a3421e | 136 | if (tb[TCA_DSMARK_MASK]) |
1e90474c | 137 | mask = nla_get_u8(tb[TCA_DSMARK_MASK]); |
27a3421e PM |
138 | |
139 | if (tb[TCA_DSMARK_VALUE]) | |
cc7ec456 | 140 | p->value[*arg - 1] = nla_get_u8(tb[TCA_DSMARK_VALUE]); |
10297b99 | 141 | |
1e90474c | 142 | if (tb[TCA_DSMARK_MASK]) |
cc7ec456 | 143 | p->mask[*arg - 1] = mask; |
758cc43c TG |
144 | |
145 | err = 0; | |
146 | ||
1e90474c | 147 | errout: |
758cc43c TG |
148 | return err; |
149 | } | |
1da177e4 | 150 | |
af0d1141 | 151 | static int dsmark_delete(struct Qdisc *sch, unsigned long arg) |
1da177e4 | 152 | { |
81da99ed | 153 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 154 | |
af0d1141 | 155 | if (!dsmark_valid_index(p, arg)) |
1da177e4 | 156 | return -EINVAL; |
10297b99 | 157 | |
cc7ec456 ED |
158 | p->mask[arg - 1] = 0xff; |
159 | p->value[arg - 1] = 0; | |
af0d1141 | 160 | |
1da177e4 LT |
161 | return 0; |
162 | } | |
163 | ||
9d127fbd | 164 | static void dsmark_walk(struct Qdisc *sch, struct qdisc_walker *walker) |
1da177e4 | 165 | { |
81da99ed | 166 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 LT |
167 | int i; |
168 | ||
c76f2a2c YY |
169 | pr_debug("%s(sch %p,[qdisc %p],walker %p)\n", |
170 | __func__, sch, p, walker); | |
af0d1141 | 171 | |
1da177e4 LT |
172 | if (walker->stop) |
173 | return; | |
af0d1141 | 174 | |
1da177e4 LT |
175 | for (i = 0; i < p->indices; i++) { |
176 | if (p->mask[i] == 0xff && !p->value[i]) | |
0451eb07 | 177 | goto ignore; |
1da177e4 | 178 | if (walker->count >= walker->skip) { |
cc7ec456 | 179 | if (walker->fn(sch, i + 1, walker) < 0) { |
1da177e4 LT |
180 | walker->stop = 1; |
181 | break; | |
182 | } | |
183 | } | |
10297b99 | 184 | ignore: |
0451eb07 | 185 | walker->count++; |
10297b99 | 186 | } |
1da177e4 LT |
187 | } |
188 | ||
9d127fbd SH |
189 | static inline struct tcf_proto **dsmark_find_tcf(struct Qdisc *sch, |
190 | unsigned long cl) | |
1da177e4 | 191 | { |
81da99ed SH |
192 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
193 | return &p->filter_list; | |
1da177e4 LT |
194 | } |
195 | ||
1da177e4 LT |
196 | /* --------------------------- Qdisc operations ---------------------------- */ |
197 | ||
9d127fbd | 198 | static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch) |
1da177e4 | 199 | { |
81da99ed | 200 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
af0d1141 TG |
201 | int err; |
202 | ||
c76f2a2c | 203 | pr_debug("%s(skb %p,sch %p,[qdisc %p])\n", __func__, skb, sch, p); |
1da177e4 | 204 | |
1da177e4 | 205 | if (p->set_tc_index) { |
1da177e4 | 206 | switch (skb->protocol) { |
60678040 | 207 | case htons(ETH_P_IP): |
9d127fbd SH |
208 | if (skb_cow_head(skb, sizeof(struct iphdr))) |
209 | goto drop; | |
4c30719f | 210 | |
9d127fbd SH |
211 | skb->tc_index = ipv4_get_dsfield(ip_hdr(skb)) |
212 | & ~INET_ECN_MASK; | |
213 | break; | |
4c30719f | 214 | |
60678040 | 215 | case htons(ETH_P_IPV6): |
9d127fbd SH |
216 | if (skb_cow_head(skb, sizeof(struct ipv6hdr))) |
217 | goto drop; | |
4c30719f | 218 | |
9d127fbd SH |
219 | skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb)) |
220 | & ~INET_ECN_MASK; | |
221 | break; | |
222 | default: | |
223 | skb->tc_index = 0; | |
224 | break; | |
3ff50b79 | 225 | } |
1da177e4 | 226 | } |
af0d1141 TG |
227 | |
228 | if (TC_H_MAJ(skb->priority) == sch->handle) | |
1da177e4 | 229 | skb->tc_index = TC_H_MIN(skb->priority); |
af0d1141 TG |
230 | else { |
231 | struct tcf_result res; | |
232 | int result = tc_classify(skb, p->filter_list, &res); | |
233 | ||
81da99ed | 234 | pr_debug("result %d class 0x%04x\n", result, res.classid); |
af0d1141 | 235 | |
1da177e4 | 236 | switch (result) { |
f6853e2d PM |
237 | #ifdef CONFIG_NET_CLS_ACT |
238 | case TC_ACT_QUEUED: | |
239 | case TC_ACT_STOLEN: | |
240 | kfree_skb(skb); | |
378a2f09 | 241 | return NET_XMIT_SUCCESS | __NET_XMIT_STOLEN; |
4c30719f | 242 | |
f6853e2d | 243 | case TC_ACT_SHOT: |
4c30719f | 244 | goto drop; |
1da177e4 | 245 | #endif |
c3bc7cff | 246 | case TC_ACT_OK: |
f6853e2d PM |
247 | skb->tc_index = TC_H_MIN(res.classid); |
248 | break; | |
4c30719f | 249 | |
f6853e2d PM |
250 | default: |
251 | if (p->default_index != NO_DEFAULT_INDEX) | |
252 | skb->tc_index = p->default_index; | |
253 | break; | |
3ff50b79 | 254 | } |
1da177e4 | 255 | } |
1da177e4 | 256 | |
5f86173b | 257 | err = qdisc_enqueue(skb, p->q); |
af0d1141 | 258 | if (err != NET_XMIT_SUCCESS) { |
378a2f09 JP |
259 | if (net_xmit_drop_count(err)) |
260 | sch->qstats.drops++; | |
af0d1141 | 261 | return err; |
1da177e4 | 262 | } |
af0d1141 | 263 | |
1da177e4 | 264 | sch->q.qlen++; |
1da177e4 | 265 | |
af0d1141 | 266 | return NET_XMIT_SUCCESS; |
4c30719f SH |
267 | |
268 | drop: | |
17045755 | 269 | qdisc_drop(skb, sch); |
c27f339a | 270 | return NET_XMIT_SUCCESS | __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 | ||
c76f2a2c | 279 | pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); |
1da177e4 | 280 | |
1da177e4 | 281 | skb = p->q->ops->dequeue(p->q); |
af0d1141 | 282 | if (skb == NULL) |
1da177e4 | 283 | return NULL; |
af0d1141 | 284 | |
9190b3b3 | 285 | qdisc_bstats_update(sch, skb); |
1da177e4 | 286 | sch->q.qlen--; |
af0d1141 TG |
287 | |
288 | index = skb->tc_index & (p->indices - 1); | |
81da99ed | 289 | pr_debug("index %d->%d\n", skb->tc_index, index); |
af0d1141 | 290 | |
1da177e4 | 291 | switch (skb->protocol) { |
60678040 | 292 | case htons(ETH_P_IP): |
9d127fbd SH |
293 | ipv4_change_dsfield(ip_hdr(skb), p->mask[index], |
294 | p->value[index]); | |
1da177e4 | 295 | break; |
60678040 | 296 | case htons(ETH_P_IPV6): |
9d127fbd SH |
297 | ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index], |
298 | p->value[index]); | |
1da177e4 | 299 | break; |
9d127fbd SH |
300 | default: |
301 | /* | |
302 | * Only complain if a change was actually attempted. | |
303 | * This way, we can send non-IP traffic through dsmark | |
304 | * and don't need yet another qdisc as a bypass. | |
305 | */ | |
306 | if (p->mask[index] != 0xff || p->value[index]) | |
c76f2a2c YY |
307 | pr_warn("%s: unsupported protocol %d\n", |
308 | __func__, ntohs(skb->protocol)); | |
9d127fbd | 309 | break; |
3ff50b79 | 310 | } |
af0d1141 | 311 | |
1da177e4 LT |
312 | return skb; |
313 | } | |
314 | ||
8e3af978 JP |
315 | static struct sk_buff *dsmark_peek(struct Qdisc *sch) |
316 | { | |
317 | struct dsmark_qdisc_data *p = qdisc_priv(sch); | |
318 | ||
c76f2a2c | 319 | pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); |
8e3af978 JP |
320 | |
321 | return p->q->ops->peek(p->q); | |
322 | } | |
323 | ||
1da177e4 LT |
324 | static unsigned int dsmark_drop(struct Qdisc *sch) |
325 | { | |
81da99ed | 326 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 327 | unsigned int len; |
10297b99 | 328 | |
c76f2a2c | 329 | pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); |
af0d1141 TG |
330 | |
331 | if (p->q->ops->drop == NULL) | |
1da177e4 | 332 | return 0; |
af0d1141 TG |
333 | |
334 | len = p->q->ops->drop(p->q); | |
335 | if (len) | |
336 | sch->q.qlen--; | |
337 | ||
1da177e4 LT |
338 | return len; |
339 | } | |
340 | ||
1e90474c | 341 | static int dsmark_init(struct Qdisc *sch, struct nlattr *opt) |
1da177e4 | 342 | { |
81da99ed | 343 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 344 | struct nlattr *tb[TCA_DSMARK_MAX + 1]; |
758cc43c TG |
345 | int err = -EINVAL; |
346 | u32 default_index = NO_DEFAULT_INDEX; | |
347 | u16 indices; | |
348 | u8 *mask; | |
349 | ||
c76f2a2c | 350 | pr_debug("%s(sch %p,[qdisc %p],opt %p)\n", __func__, sch, p, opt); |
758cc43c | 351 | |
cee63723 PM |
352 | if (!opt) |
353 | goto errout; | |
354 | ||
27a3421e | 355 | err = nla_parse_nested(tb, TCA_DSMARK_MAX, opt, dsmark_policy); |
cee63723 | 356 | if (err < 0) |
758cc43c TG |
357 | goto errout; |
358 | ||
cee63723 | 359 | err = -EINVAL; |
1e90474c | 360 | indices = nla_get_u16(tb[TCA_DSMARK_INDICES]); |
5b0ac72b DM |
361 | |
362 | if (hweight32(indices) != 1) | |
758cc43c TG |
363 | goto errout; |
364 | ||
27a3421e | 365 | if (tb[TCA_DSMARK_DEFAULT_INDEX]) |
1e90474c | 366 | default_index = nla_get_u16(tb[TCA_DSMARK_DEFAULT_INDEX]); |
758cc43c TG |
367 | |
368 | mask = kmalloc(indices * 2, GFP_KERNEL); | |
369 | if (mask == NULL) { | |
370 | err = -ENOMEM; | |
371 | goto errout; | |
1da177e4 | 372 | } |
758cc43c TG |
373 | |
374 | p->mask = mask; | |
375 | memset(p->mask, 0xff, indices); | |
376 | ||
377 | p->value = p->mask + indices; | |
378 | memset(p->value, 0, indices); | |
379 | ||
380 | p->indices = indices; | |
381 | p->default_index = default_index; | |
1e90474c | 382 | p->set_tc_index = nla_get_flag(tb[TCA_DSMARK_SET_TC_INDEX]); |
758cc43c | 383 | |
3511c913 | 384 | p->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, sch->handle); |
758cc43c | 385 | if (p->q == NULL) |
1da177e4 | 386 | p->q = &noop_qdisc; |
758cc43c | 387 | |
c76f2a2c | 388 | pr_debug("%s: qdisc %p\n", __func__, p->q); |
758cc43c TG |
389 | |
390 | err = 0; | |
391 | errout: | |
758cc43c | 392 | return err; |
1da177e4 LT |
393 | } |
394 | ||
1da177e4 LT |
395 | static void dsmark_reset(struct Qdisc *sch) |
396 | { | |
81da99ed | 397 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 398 | |
c76f2a2c | 399 | pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); |
1da177e4 LT |
400 | qdisc_reset(p->q); |
401 | sch->q.qlen = 0; | |
402 | } | |
403 | ||
1da177e4 LT |
404 | static void dsmark_destroy(struct Qdisc *sch) |
405 | { | |
81da99ed | 406 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1da177e4 | 407 | |
c76f2a2c | 408 | pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p); |
af0d1141 | 409 | |
ff31ab56 | 410 | tcf_destroy_chain(&p->filter_list); |
1da177e4 LT |
411 | qdisc_destroy(p->q); |
412 | kfree(p->mask); | |
413 | } | |
414 | ||
1da177e4 | 415 | static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl, |
02f23f09 | 416 | struct sk_buff *skb, struct tcmsg *tcm) |
1da177e4 | 417 | { |
81da99ed | 418 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 419 | struct nlattr *opts = NULL; |
1da177e4 | 420 | |
c76f2a2c | 421 | pr_debug("%s(sch %p,[qdisc %p],class %ld\n", __func__, sch, p, cl); |
02f23f09 TG |
422 | |
423 | if (!dsmark_valid_index(p, cl)) | |
1da177e4 | 424 | return -EINVAL; |
02f23f09 | 425 | |
cc7ec456 | 426 | tcm->tcm_handle = TC_H_MAKE(TC_H_MAJ(sch->handle), cl - 1); |
cdc7f8e3 | 427 | tcm->tcm_info = p->q->handle; |
02f23f09 | 428 | |
1e90474c PM |
429 | opts = nla_nest_start(skb, TCA_OPTIONS); |
430 | if (opts == NULL) | |
431 | goto nla_put_failure; | |
1b34ec43 DM |
432 | if (nla_put_u8(skb, TCA_DSMARK_MASK, p->mask[cl - 1]) || |
433 | nla_put_u8(skb, TCA_DSMARK_VALUE, p->value[cl - 1])) | |
434 | goto nla_put_failure; | |
02f23f09 | 435 | |
1e90474c | 436 | return nla_nest_end(skb, opts); |
1da177e4 | 437 | |
1e90474c | 438 | nla_put_failure: |
bc3ed28c TG |
439 | nla_nest_cancel(skb, opts); |
440 | return -EMSGSIZE; | |
1da177e4 LT |
441 | } |
442 | ||
443 | static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb) | |
444 | { | |
81da99ed | 445 | struct dsmark_qdisc_data *p = qdisc_priv(sch); |
1e90474c | 446 | struct nlattr *opts = NULL; |
1da177e4 | 447 | |
1e90474c PM |
448 | opts = nla_nest_start(skb, TCA_OPTIONS); |
449 | if (opts == NULL) | |
450 | goto nla_put_failure; | |
1b34ec43 DM |
451 | if (nla_put_u16(skb, TCA_DSMARK_INDICES, p->indices)) |
452 | goto nla_put_failure; | |
02f23f09 | 453 | |
1b34ec43 DM |
454 | if (p->default_index != NO_DEFAULT_INDEX && |
455 | nla_put_u16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index)) | |
456 | goto nla_put_failure; | |
1da177e4 | 457 | |
1b34ec43 DM |
458 | if (p->set_tc_index && |
459 | nla_put_flag(skb, TCA_DSMARK_SET_TC_INDEX)) | |
460 | goto nla_put_failure; | |
02f23f09 | 461 | |
1e90474c | 462 | return nla_nest_end(skb, opts); |
1da177e4 | 463 | |
1e90474c | 464 | nla_put_failure: |
bc3ed28c TG |
465 | nla_nest_cancel(skb, opts); |
466 | return -EMSGSIZE; | |
1da177e4 LT |
467 | } |
468 | ||
20fea08b | 469 | static const struct Qdisc_class_ops dsmark_class_ops = { |
1da177e4 LT |
470 | .graft = dsmark_graft, |
471 | .leaf = dsmark_leaf, | |
472 | .get = dsmark_get, | |
473 | .put = dsmark_put, | |
474 | .change = dsmark_change, | |
475 | .delete = dsmark_delete, | |
476 | .walk = dsmark_walk, | |
477 | .tcf_chain = dsmark_find_tcf, | |
478 | .bind_tcf = dsmark_bind_filter, | |
479 | .unbind_tcf = dsmark_put, | |
480 | .dump = dsmark_dump_class, | |
481 | }; | |
482 | ||
20fea08b | 483 | static struct Qdisc_ops dsmark_qdisc_ops __read_mostly = { |
1da177e4 LT |
484 | .next = NULL, |
485 | .cl_ops = &dsmark_class_ops, | |
486 | .id = "dsmark", | |
487 | .priv_size = sizeof(struct dsmark_qdisc_data), | |
488 | .enqueue = dsmark_enqueue, | |
489 | .dequeue = dsmark_dequeue, | |
8e3af978 | 490 | .peek = dsmark_peek, |
1da177e4 LT |
491 | .drop = dsmark_drop, |
492 | .init = dsmark_init, | |
493 | .reset = dsmark_reset, | |
494 | .destroy = dsmark_destroy, | |
495 | .change = NULL, | |
496 | .dump = dsmark_dump, | |
497 | .owner = THIS_MODULE, | |
498 | }; | |
499 | ||
500 | static int __init dsmark_module_init(void) | |
501 | { | |
502 | return register_qdisc(&dsmark_qdisc_ops); | |
503 | } | |
af0d1141 | 504 | |
10297b99 | 505 | static void __exit dsmark_module_exit(void) |
1da177e4 LT |
506 | { |
507 | unregister_qdisc(&dsmark_qdisc_ops); | |
508 | } | |
af0d1141 | 509 | |
1da177e4 LT |
510 | module_init(dsmark_module_init) |
511 | module_exit(dsmark_module_exit) | |
af0d1141 | 512 | |
1da177e4 | 513 | MODULE_LICENSE("GPL"); |