]>
Commit | Line | Data |
---|---|---|
d6ad3303 | 1 | diff -U 6 -Nr linux-2.6.25/drivers/net/imq.c linux-2.6.25+imq/drivers/net/imq.c |
2 | --- linux-2.6.25/drivers/net/imq.c 1970-01-01 02:00:00.000000000 +0200 | |
3 | +++ linux-2.6.25+imq/drivers/net/imq.c 2008-04-18 18:59:11.759564156 +0300 | |
4 | @@ -0,0 +1,411 @@ | |
f4f8379a | 5 | +/* |
6 | + * Pseudo-driver for the intermediate queue device. | |
7 | + * | |
8 | + * This program is free software; you can redistribute it and/or | |
9 | + * modify it under the terms of the GNU General Public License | |
10 | + * as published by the Free Software Foundation; either version | |
11 | + * 2 of the License, or (at your option) any later version. | |
12 | + * | |
13 | + * Authors: Patrick McHardy, <kaber@trash.net> | |
14 | + * | |
15 | + * The first version was written by Martin Devera, <devik@cdi.cz> | |
16 | + * | |
17 | + * Credits: Jan Rafaj <imq2t@cedric.vabo.cz> | |
18 | + * - Update patch to 2.4.21 | |
19 | + * Sebastian Strollo <sstrollo@nortelnetworks.com> | |
20 | + * - Fix "Dead-loop on netdevice imq"-issue | |
21 | + * Marcel Sebek <sebek64@post.cz> | |
22 | + * - Update to 2.6.2-rc1 | |
23 | + * | |
24 | + * After some time of inactivity there is a group taking care | |
25 | + * of IMQ again: http://www.linuximq.net | |
26 | + * | |
27 | + * | |
28 | + * 2004/06/30 - New version of IMQ patch to kernels <=2.6.7 including | |
29 | + * the following changes: | |
30 | + * | |
31 | + * - Correction of ipv6 support "+"s issue (Hasso Tepper) | |
32 | + * - Correction of imq_init_devs() issue that resulted in | |
33 | + * kernel OOPS unloading IMQ as module (Norbert Buchmuller) | |
34 | + * - Addition of functionality to choose number of IMQ devices | |
35 | + * during kernel config (Andre Correa) | |
36 | + * - Addition of functionality to choose how IMQ hooks on | |
37 | + * PRE and POSTROUTING (after or before NAT) (Andre Correa) | |
38 | + * - Cosmetic corrections (Norbert Buchmuller) (Andre Correa) | |
39 | + * | |
40 | + * | |
41 | + * 2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were | |
42 | + * released with almost no problems. 2.6.14-x was released | |
43 | + * with some important changes: nfcache was removed; After | |
44 | + * some weeks of trouble we figured out that some IMQ fields | |
45 | + * in skb were missing in skbuff.c - skb_clone and copy_skb_header. | |
46 | + * These functions are correctly patched by this new patch version. | |
47 | + * | |
48 | + * Thanks for all who helped to figure out all the problems with | |
49 | + * 2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX, | |
50 | + * Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully | |
51 | + * I didn't forget anybody). I apologize again for my lack of time. | |
52 | + * | |
53 | + * More info at: http://www.linuximq.net/ (Andre Correa) | |
54 | + */ | |
55 | + | |
56 | +#include <linux/module.h> | |
57 | +#include <linux/kernel.h> | |
58 | +#include <linux/moduleparam.h> | |
59 | +#include <linux/skbuff.h> | |
60 | +#include <linux/netdevice.h> | |
61 | +#include <linux/rtnetlink.h> | |
62 | +#include <linux/if_arp.h> | |
63 | +#include <linux/netfilter.h> | |
64 | +#include <linux/netfilter_ipv4.h> | |
65 | +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) | |
66 | + #include <linux/netfilter_ipv6.h> | |
67 | +#endif | |
68 | +#include <linux/imq.h> | |
69 | +#include <net/pkt_sched.h> | |
d6ad3303 | 70 | +#include <net/netfilter/nf_queue.h> |
f4f8379a | 71 | + |
72 | +extern int qdisc_restart1(struct net_device *dev); | |
73 | + | |
2437dee6 | 74 | +static nf_hookfn imq_nf_hook; |
f4f8379a | 75 | + |
76 | +static struct nf_hook_ops imq_ingress_ipv4 = { | |
77 | + .hook = imq_nf_hook, | |
78 | + .owner = THIS_MODULE, | |
79 | + .pf = PF_INET, | |
d6ad3303 | 80 | + .hooknum = NF_INET_PRE_ROUTING, |
f4f8379a | 81 | +#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) |
82 | + .priority = NF_IP_PRI_MANGLE + 1 | |
83 | +#else | |
84 | + .priority = NF_IP_PRI_NAT_DST + 1 | |
85 | +#endif | |
86 | +}; | |
87 | + | |
88 | +static struct nf_hook_ops imq_egress_ipv4 = { | |
89 | + .hook = imq_nf_hook, | |
90 | + .owner = THIS_MODULE, | |
91 | + .pf = PF_INET, | |
d6ad3303 | 92 | + .hooknum = NF_INET_POST_ROUTING, |
f4f8379a | 93 | +#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA) |
94 | + .priority = NF_IP_PRI_LAST | |
95 | +#else | |
96 | + .priority = NF_IP_PRI_NAT_SRC - 1 | |
97 | +#endif | |
98 | +}; | |
99 | + | |
100 | +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) | |
101 | +static struct nf_hook_ops imq_ingress_ipv6 = { | |
102 | + .hook = imq_nf_hook, | |
103 | + .owner = THIS_MODULE, | |
104 | + .pf = PF_INET6, | |
d6ad3303 | 105 | + .hooknum = NF_INET_PRE_ROUTING, |
f4f8379a | 106 | +#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) |
107 | + .priority = NF_IP6_PRI_MANGLE + 1 | |
108 | +#else | |
109 | + .priority = NF_IP6_PRI_NAT_DST + 1 | |
110 | +#endif | |
111 | +}; | |
112 | + | |
113 | +static struct nf_hook_ops imq_egress_ipv6 = { | |
114 | + .hook = imq_nf_hook, | |
115 | + .owner = THIS_MODULE, | |
116 | + .pf = PF_INET6, | |
d6ad3303 | 117 | + .hooknum = NF_INET_POST_ROUTING, |
f4f8379a | 118 | +#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA) |
119 | + .priority = NF_IP6_PRI_LAST | |
120 | +#else | |
121 | + .priority = NF_IP6_PRI_NAT_SRC - 1 | |
122 | +#endif | |
123 | +}; | |
124 | +#endif | |
125 | + | |
126 | +#if defined(CONFIG_IMQ_NUM_DEVS) | |
127 | +static unsigned int numdevs = CONFIG_IMQ_NUM_DEVS; | |
128 | +#else | |
2437dee6 | 129 | +static unsigned int numdevs = 16; |
f4f8379a | 130 | +#endif |
131 | + | |
132 | +static struct net_device *imq_devs; | |
133 | + | |
134 | +static struct net_device_stats *imq_get_stats(struct net_device *dev) | |
135 | +{ | |
136 | + return (struct net_device_stats *)dev->priv; | |
137 | +} | |
138 | + | |
139 | +/* called for packets kfree'd in qdiscs at places other than enqueue */ | |
140 | +static void imq_skb_destructor(struct sk_buff *skb) | |
141 | +{ | |
d6ad3303 | 142 | + struct nf_queue_entry *entry = skb->nf_queue_entry; |
143 | + | |
144 | + if (entry) { | |
145 | + if (entry->indev) | |
146 | + dev_put(entry->indev); | |
147 | + if (entry->outdev) | |
148 | + dev_put(entry->outdev); | |
149 | + kfree(entry); | |
f4f8379a | 150 | + } |
151 | +} | |
152 | + | |
153 | +static int imq_dev_xmit(struct sk_buff *skb, struct net_device *dev) | |
154 | +{ | |
155 | + struct net_device_stats *stats = (struct net_device_stats*) dev->priv; | |
156 | + | |
157 | + stats->tx_bytes += skb->len; | |
158 | + stats->tx_packets++; | |
159 | + | |
160 | + skb->imq_flags = 0; | |
161 | + skb->destructor = NULL; | |
162 | + | |
163 | + dev->trans_start = jiffies; | |
d6ad3303 | 164 | + nf_reinject(skb->nf_queue_entry, NF_ACCEPT); |
f4f8379a | 165 | + return 0; |
166 | +} | |
167 | + | |
d6ad3303 | 168 | +static int imq_nf_queue(struct nf_queue_entry *entry, unsigned int queuenum) |
f4f8379a | 169 | +{ |
170 | + struct net_device *dev; | |
171 | + struct net_device_stats *stats; | |
d6ad3303 | 172 | + struct sk_buff *skb = entry->skb; |
f4f8379a | 173 | + struct sk_buff *skb2 = NULL; |
174 | + struct Qdisc *q; | |
175 | + unsigned int index = skb->imq_flags&IMQ_F_IFMASK; | |
176 | + int ret = -1; | |
177 | + | |
178 | + if (index > numdevs) | |
179 | + return -1; | |
180 | + | |
181 | + dev = imq_devs + index; | |
182 | + if (!(dev->flags & IFF_UP)) { | |
183 | + skb->imq_flags = 0; | |
d6ad3303 | 184 | + nf_reinject(entry, NF_ACCEPT); |
f4f8379a | 185 | + return 0; |
186 | + } | |
187 | + dev->last_rx = jiffies; | |
188 | + | |
189 | + if (skb->destructor) { | |
190 | + skb2 = skb; | |
191 | + skb = skb_clone(skb, GFP_ATOMIC); | |
192 | + if (!skb) | |
193 | + return -1; | |
194 | + } | |
d6ad3303 | 195 | + skb->nf_queue_entry = entry; |
f4f8379a | 196 | + |
197 | + stats = (struct net_device_stats *)dev->priv; | |
198 | + stats->rx_bytes+= skb->len; | |
199 | + stats->rx_packets++; | |
200 | + | |
201 | + spin_lock_bh(&dev->queue_lock); | |
202 | + q = dev->qdisc; | |
203 | + if (q->enqueue) { | |
204 | + q->enqueue(skb_get(skb), q); | |
205 | + if (skb_shared(skb)) { | |
206 | + skb->destructor = imq_skb_destructor; | |
207 | + kfree_skb(skb); | |
208 | + ret = 0; | |
209 | + } | |
210 | + } | |
211 | + if (spin_is_locked(&dev->_xmit_lock)) | |
212 | + netif_schedule(dev); | |
213 | + else | |
214 | + while (!netif_queue_stopped(dev) && qdisc_restart1(dev) < 0) | |
215 | + /* NOTHING */; | |
216 | + | |
217 | + spin_unlock_bh(&dev->queue_lock); | |
218 | + | |
219 | + if (skb2) | |
220 | + kfree_skb(ret ? skb : skb2); | |
221 | + | |
222 | + return ret; | |
223 | +} | |
224 | + | |
225 | +static struct nf_queue_handler nfqh = { | |
226 | + .name = "imq", | |
227 | + .outfn = imq_nf_queue, | |
228 | +}; | |
229 | + | |
2437dee6 | 230 | +static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff *pskb, |
f4f8379a | 231 | + const struct net_device *indev, |
232 | + const struct net_device *outdev, | |
233 | + int (*okfn)(struct sk_buff *)) | |
234 | +{ | |
2437dee6 | 235 | + if (pskb->imq_flags & IMQ_F_ENQUEUE) |
f4f8379a | 236 | + return NF_QUEUE; |
237 | + | |
238 | + return NF_ACCEPT; | |
239 | +} | |
240 | + | |
241 | + | |
242 | +static int __init imq_init_hooks(void) | |
243 | +{ | |
244 | + int err; | |
245 | + | |
246 | + err = nf_register_queue_handler(PF_INET, &nfqh); | |
247 | + if (err > 0) | |
248 | + goto err1; | |
249 | + if ((err = nf_register_hook(&imq_ingress_ipv4))) | |
250 | + goto err2; | |
251 | + if ((err = nf_register_hook(&imq_egress_ipv4))) | |
252 | + goto err3; | |
253 | +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) | |
254 | + if ((err = nf_register_queue_handler(PF_INET6, &nfqh))) | |
255 | + goto err4; | |
256 | + if ((err = nf_register_hook(&imq_ingress_ipv6))) | |
257 | + goto err5; | |
258 | + if ((err = nf_register_hook(&imq_egress_ipv6))) | |
259 | + goto err6; | |
260 | +#endif | |
261 | + | |
262 | + return 0; | |
263 | + | |
264 | +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) | |
265 | +err6: | |
266 | + nf_unregister_hook(&imq_ingress_ipv6); | |
267 | +err5: | |
3b8cc16d | 268 | + nf_unregister_queue_handler(PF_INET6, &nfqh); |
f4f8379a | 269 | +err4: |
2437dee6 | 270 | + nf_unregister_hook(&imq_egress_ipv4); |
f4f8379a | 271 | +#endif |
272 | +err3: | |
273 | + nf_unregister_hook(&imq_ingress_ipv4); | |
274 | +err2: | |
3b8cc16d | 275 | + nf_unregister_queue_handler(PF_INET, &nfqh); |
f4f8379a | 276 | +err1: |
277 | + return err; | |
278 | +} | |
279 | + | |
280 | +static void __exit imq_unhook(void) | |
281 | +{ | |
f4f8379a | 282 | +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) |
283 | + nf_unregister_hook(&imq_ingress_ipv6); | |
284 | + nf_unregister_hook(&imq_egress_ipv6); | |
3b8cc16d | 285 | + nf_unregister_queue_handler(PF_INET6, &nfqh); |
f4f8379a | 286 | +#endif |
2437dee6 | 287 | + nf_unregister_hook(&imq_ingress_ipv4); |
288 | + nf_unregister_hook(&imq_egress_ipv4); | |
289 | + nf_unregister_queue_handler(PF_INET, &nfqh); | |
f4f8379a | 290 | +} |
291 | + | |
292 | +static int __init imq_dev_init(struct net_device *dev) | |
293 | +{ | |
294 | + dev->hard_start_xmit = imq_dev_xmit; | |
295 | + dev->type = ARPHRD_VOID; | |
2437dee6 | 296 | + dev->mtu = 16000; |
297 | + dev->tx_queue_len = 11000; | |
f4f8379a | 298 | + dev->flags = IFF_NOARP; |
2437dee6 | 299 | + dev->priv = kzalloc(sizeof(struct net_device_stats), GFP_KERNEL); |
f4f8379a | 300 | + if (dev->priv == NULL) |
301 | + return -ENOMEM; | |
f4f8379a | 302 | + dev->get_stats = imq_get_stats; |
303 | + | |
304 | + return 0; | |
305 | +} | |
306 | + | |
307 | +static void imq_dev_uninit(struct net_device *dev) | |
308 | +{ | |
309 | + kfree(dev->priv); | |
310 | +} | |
311 | + | |
2437dee6 | 312 | +static int __init imq_init_devs(struct net *net) |
f4f8379a | 313 | +{ |
314 | + struct net_device *dev; | |
315 | + int i,j; | |
316 | + j = numdevs; | |
317 | + | |
318 | + if (!numdevs || numdevs > IMQ_MAX_DEVS) { | |
319 | + printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n", | |
320 | + IMQ_MAX_DEVS); | |
321 | + return -EINVAL; | |
322 | + } | |
323 | + | |
2437dee6 | 324 | + imq_devs = kzalloc(sizeof(struct net_device) * numdevs, GFP_KERNEL); |
f4f8379a | 325 | + if (!imq_devs) |
326 | + return -ENOMEM; | |
f4f8379a | 327 | + |
328 | + /* we start counting at zero */ | |
329 | + numdevs--; | |
330 | + | |
331 | + for (i = 0, dev = imq_devs; i <= numdevs; i++, dev++) { | |
f4f8379a | 332 | + strcpy(dev->name, "imq%d"); |
333 | + dev->init = imq_dev_init; | |
334 | + dev->uninit = imq_dev_uninit; | |
2437dee6 | 335 | + dev->nd_net = net; |
f4f8379a | 336 | + |
337 | + if (register_netdev(dev) < 0) | |
338 | + goto err_register; | |
339 | + } | |
340 | + printk(KERN_INFO "IMQ starting with %u devices...\n", j); | |
341 | + return 0; | |
342 | + | |
343 | +err_register: | |
344 | + for (; i; i--) | |
345 | + unregister_netdev(--dev); | |
346 | + kfree(imq_devs); | |
347 | + return -EIO; | |
348 | +} | |
349 | + | |
350 | +static void imq_cleanup_devs(void) | |
351 | +{ | |
352 | + int i; | |
353 | + struct net_device *dev = imq_devs; | |
354 | + | |
355 | + for (i = 0; i <= numdevs; i++) | |
356 | + unregister_netdev(dev++); | |
357 | + | |
358 | + kfree(imq_devs); | |
359 | +} | |
360 | + | |
2437dee6 | 361 | +static __net_init int imq_init_module(struct net *net) |
f4f8379a | 362 | +{ |
363 | + int err; | |
364 | + | |
2437dee6 | 365 | + if ((err = imq_init_devs(net))) { |
366 | + printk(KERN_ERR "IMQ: Error trying imq_init_devs(net)\n"); | |
f4f8379a | 367 | + return err; |
368 | + } | |
369 | + if ((err = imq_init_hooks())) { | |
370 | + printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n"); | |
371 | + imq_cleanup_devs(); | |
372 | + return err; | |
373 | + } | |
374 | + | |
375 | + printk(KERN_INFO "IMQ driver loaded successfully.\n"); | |
376 | + | |
377 | +#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB) | |
378 | + printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n"); | |
379 | +#else | |
380 | + printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n"); | |
381 | +#endif | |
382 | +#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB) | |
383 | + printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n"); | |
384 | +#else | |
385 | + printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n"); | |
386 | +#endif | |
387 | + | |
388 | + return 0; | |
389 | +} | |
390 | + | |
2437dee6 | 391 | +static __net_exit void imq_exit_module(struct net *net) |
f4f8379a | 392 | +{ |
393 | + imq_unhook(); | |
394 | + imq_cleanup_devs(); | |
395 | + printk(KERN_INFO "IMQ driver unloaded successfully.\n"); | |
396 | +} | |
397 | + | |
2437dee6 | 398 | +static struct pernet_operations __net_initdata imq_net_ops = { |
399 | + .init = imq_init_module, | |
400 | + .exit = imq_exit_module, | |
401 | +}; | |
402 | + | |
403 | +static int __init imq_init(void) | |
404 | +{ | |
405 | + return register_pernet_device(&imq_net_ops); | |
406 | +} | |
f4f8379a | 407 | + |
2437dee6 | 408 | +module_init(imq_init); |
409 | +//module_exit(imq_cleanup_module); | |
f4f8379a | 410 | + |
411 | +module_param(numdevs, int, 0); | |
412 | +MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will be created)"); | |
413 | +MODULE_AUTHOR("http://www.linuximq.net"); | |
414 | +MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); | |
415 | +MODULE_LICENSE("GPL"); | |
d6ad3303 | 416 | diff -U 6 -Nr linux-2.6.25/drivers/net/Kconfig linux-2.6.25+imq/drivers/net/Kconfig |
417 | --- linux-2.6.25/drivers/net/Kconfig 2008-04-17 05:49:44.000000000 +0300 | |
418 | +++ linux-2.6.25+imq/drivers/net/Kconfig 2008-04-18 14:54:49.587699858 +0300 | |
419 | @@ -114,12 +114,135 @@ | |
420 | section 6.2 of the NET-3-HOWTO, available from | |
421 | <http://www.tldp.org/docs.html#howto>. | |
422 | ||
2437dee6 | 423 | To compile this driver as a module, choose M here: the module |
424 | will be called eql. If unsure, say N. | |
425 | ||
426 | +config IMQ | |
427 | + tristate "IMQ (intermediate queueing device) support" | |
428 | + depends on NETDEVICES && NETFILTER | |
429 | + ---help--- | |
430 | + The IMQ device(s) is used as placeholder for QoS queueing | |
431 | + disciplines. Every packet entering/leaving the IP stack can be | |
432 | + directed through the IMQ device where it's enqueued/dequeued to the | |
433 | + attached qdisc. This allows you to treat network devices as classes | |
434 | + and distribute bandwidth among them. Iptables is used to specify | |
435 | + through which IMQ device, if any, packets travel. | |
436 | + | |
437 | + More information at: http://www.linuximq.net/ | |
438 | + | |
439 | + To compile this driver as a module, choose M here: the module | |
440 | + will be called imq. If unsure, say N. | |
441 | + | |
442 | +choice | |
443 | + prompt "IMQ behavior (PRE/POSTROUTING)" | |
444 | + depends on IMQ | |
445 | + default IMQ_BEHAVIOR_BB | |
446 | + help | |
447 | + | |
448 | + This settings defines how IMQ behaves in respect to its | |
449 | + hooking in PREROUTING and POSTROUTING. | |
450 | + | |
451 | + IMQ can work in any of the following ways: | |
452 | + | |
453 | + PREROUTING | POSTROUTING | |
454 | + -----------------|------------------- | |
455 | + #1 After NAT | After NAT | |
456 | + #2 After NAT | Before NAT | |
457 | + #3 Before NAT | After NAT | |
458 | + #4 Before NAT | Before NAT | |
459 | + | |
460 | + The default behavior is to hook before NAT on PREROUTING | |
461 | + and after NAT on POSTROUTING (#3). | |
462 | + | |
463 | + This settings are specially usefull when trying to use IMQ | |
464 | + to shape NATed clients. | |
465 | + | |
466 | + More information can be found at: www.linuximq.net | |
467 | + | |
468 | + If not sure leave the default settings alone. | |
469 | + | |
470 | +config IMQ_BEHAVIOR_AA | |
471 | + bool "IMQ AA" | |
472 | + help | |
473 | + This settings defines how IMQ behaves in respect to its | |
474 | + hooking in PREROUTING and POSTROUTING. | |
475 | + | |
476 | + Choosing this option will make IMQ hook like this: | |
477 | + | |
478 | + PREROUTING: After NAT | |
479 | + POSTROUTING: After NAT | |
480 | + | |
481 | + More information can be found at: www.linuximq.net | |
482 | + | |
483 | + If not sure leave the default settings alone. | |
484 | + | |
485 | +config IMQ_BEHAVIOR_AB | |
486 | + bool "IMQ AB" | |
487 | + help | |
488 | + This settings defines how IMQ behaves in respect to its | |
489 | + hooking in PREROUTING and POSTROUTING. | |
490 | + | |
491 | + Choosing this option will make IMQ hook like this: | |
492 | + | |
493 | + PREROUTING: After NAT | |
494 | + POSTROUTING: Before NAT | |
495 | + | |
496 | + More information can be found at: www.linuximq.net | |
497 | + | |
498 | + If not sure leave the default settings alone. | |
499 | + | |
500 | +config IMQ_BEHAVIOR_BA | |
501 | + bool "IMQ BA" | |
502 | + help | |
503 | + This settings defines how IMQ behaves in respect to its | |
504 | + hooking in PREROUTING and POSTROUTING. | |
505 | + | |
506 | + Choosing this option will make IMQ hook like this: | |
507 | + | |
508 | + PREROUTING: Before NAT | |
509 | + POSTROUTING: After NAT | |
510 | + | |
511 | + More information can be found at: www.linuximq.net | |
512 | + | |
513 | + If not sure leave the default settings alone. | |
514 | + | |
515 | +config IMQ_BEHAVIOR_BB | |
516 | + bool "IMQ BB" | |
517 | + help | |
518 | + This settings defines how IMQ behaves in respect to its | |
519 | + hooking in PREROUTING and POSTROUTING. | |
520 | + | |
521 | + Choosing this option will make IMQ hook like this: | |
522 | + | |
523 | + PREROUTING: Before NAT | |
524 | + POSTROUTING: Before NAT | |
525 | + | |
526 | + More information can be found at: www.linuximq.net | |
527 | + | |
528 | + If not sure leave the default settings alone. | |
529 | + | |
530 | +endchoice | |
531 | + | |
532 | +config IMQ_NUM_DEVS | |
533 | + | |
534 | + int "Number of IMQ devices" | |
535 | + range 2 16 | |
536 | + depends on IMQ | |
537 | + default "16" | |
538 | + help | |
539 | + | |
540 | + This settings defines how many IMQ devices will be | |
541 | + created. | |
542 | + | |
543 | + The default value is 16. | |
544 | + | |
545 | + More information can be found at: www.linuximq.net | |
546 | + | |
547 | + If not sure leave the default settings alone. | |
548 | + | |
549 | config TUN | |
550 | tristate "Universal TUN/TAP device driver support" | |
551 | select CRC32 | |
d6ad3303 | 552 | ---help--- |
553 | TUN/TAP provides packet reception and transmission for user space | |
554 | programs. It can be viewed as a simple Point-to-Point or Ethernet | |
555 | diff -U 6 -Nr linux-2.6.25/drivers/net/Makefile linux-2.6.25+imq/drivers/net/Makefile | |
556 | --- linux-2.6.25/drivers/net/Makefile 2008-04-17 05:49:44.000000000 +0300 | |
557 | +++ linux-2.6.25+imq/drivers/net/Makefile 2008-04-18 14:54:49.591038604 +0300 | |
558 | @@ -140,12 +140,13 @@ | |
559 | obj-$(CONFIG_SLIP) += slip.o | |
560 | obj-$(CONFIG_SLHC) += slhc.o | |
561 | ||
2437dee6 | 562 | obj-$(CONFIG_XEN_NETDEV_FRONTEND) += xen-netfront.o |
563 | ||
564 | obj-$(CONFIG_DUMMY) += dummy.o | |
565 | +obj-$(CONFIG_IMQ) += imq.o | |
566 | obj-$(CONFIG_IFB) += ifb.o | |
567 | obj-$(CONFIG_MACVLAN) += macvlan.o | |
568 | obj-$(CONFIG_DE600) += de600.o | |
d6ad3303 | 569 | obj-$(CONFIG_DE620) += de620.o |
570 | obj-$(CONFIG_LANCE) += lance.o | |
571 | obj-$(CONFIG_SUN3_82586) += sun3_82586.o | |
572 | diff -U 6 -Nr linux-2.6.25/include/linux/imq.h linux-2.6.25+imq/include/linux/imq.h | |
573 | --- linux-2.6.25/include/linux/imq.h 1970-01-01 02:00:00.000000000 +0200 | |
574 | +++ linux-2.6.25+imq/include/linux/imq.h 2008-04-18 14:54:49.594372600 +0300 | |
f4f8379a | 575 | @@ -0,0 +1,9 @@ |
576 | +#ifndef _IMQ_H | |
577 | +#define _IMQ_H | |
578 | + | |
579 | +#define IMQ_MAX_DEVS 16 | |
580 | + | |
581 | +#define IMQ_F_IFMASK 0x7f | |
582 | +#define IMQ_F_ENQUEUE 0x80 | |
583 | + | |
584 | +#endif /* _IMQ_H */ | |
d6ad3303 | 585 | diff -U 6 -Nr linux-2.6.25/include/linux/netfilter_ipv4/ipt_IMQ.h linux-2.6.25+imq/include/linux/netfilter_ipv4/ipt_IMQ.h |
586 | --- linux-2.6.25/include/linux/netfilter_ipv4/ipt_IMQ.h 1970-01-01 02:00:00.000000000 +0200 | |
587 | +++ linux-2.6.25+imq/include/linux/netfilter_ipv4/ipt_IMQ.h 2008-04-18 14:54:49.594372600 +0300 | |
f4f8379a | 588 | @@ -0,0 +1,8 @@ |
589 | +#ifndef _IPT_IMQ_H | |
590 | +#define _IPT_IMQ_H | |
591 | + | |
592 | +struct ipt_imq_info { | |
593 | + unsigned int todev; /* target imq device */ | |
594 | +}; | |
595 | + | |
596 | +#endif /* _IPT_IMQ_H */ | |
d6ad3303 | 597 | diff -U 6 -Nr linux-2.6.25/include/linux/netfilter_ipv6/ip6t_IMQ.h linux-2.6.25+imq/include/linux/netfilter_ipv6/ip6t_IMQ.h |
598 | --- linux-2.6.25/include/linux/netfilter_ipv6/ip6t_IMQ.h 1970-01-01 02:00:00.000000000 +0200 | |
599 | +++ linux-2.6.25+imq/include/linux/netfilter_ipv6/ip6t_IMQ.h 2008-04-18 14:54:49.594372600 +0300 | |
f4f8379a | 600 | @@ -0,0 +1,8 @@ |
601 | +#ifndef _IP6T_IMQ_H | |
602 | +#define _IP6T_IMQ_H | |
603 | + | |
604 | +struct ip6t_imq_info { | |
605 | + unsigned int todev; /* target imq device */ | |
606 | +}; | |
607 | + | |
608 | +#endif /* _IP6T_IMQ_H */ | |
d6ad3303 | 609 | diff -U 6 -Nr linux-2.6.25/include/linux/skbuff.h linux-2.6.25+imq/include/linux/skbuff.h |
610 | --- linux-2.6.25/include/linux/skbuff.h 2008-04-17 05:49:44.000000000 +0300 | |
611 | +++ linux-2.6.25+imq/include/linux/skbuff.h 2008-04-18 18:59:44.607852013 +0300 | |
612 | @@ -293,12 +293,16 @@ | |
613 | ||
614 | void (*destructor)(struct sk_buff *skb); | |
615 | #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) | |
2437dee6 | 616 | struct nf_conntrack *nfct; |
f4f8379a | 617 | struct sk_buff *nfct_reasm; |
618 | #endif | |
619 | +#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) | |
620 | + unsigned char imq_flags; | |
d6ad3303 | 621 | + struct nf_queue_entry *nf_queue_entry; |
f4f8379a | 622 | +#endif |
623 | #ifdef CONFIG_BRIDGE_NETFILTER | |
624 | struct nf_bridge_info *nf_bridge; | |
625 | #endif | |
d6ad3303 | 626 | |
627 | int iif; | |
628 | #ifdef CONFIG_NETDEVICES_MULTIQUEUE | |
629 | @@ -1733,12 +1737,16 @@ | |
630 | dst->nfct = src->nfct; | |
631 | nf_conntrack_get(src->nfct); | |
632 | dst->nfctinfo = src->nfctinfo; | |
2437dee6 | 633 | dst->nfct_reasm = src->nfct_reasm; |
634 | nf_conntrack_get_reasm(src->nfct_reasm); | |
635 | #endif | |
636 | +#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) | |
637 | + dst->imq_flags = src->imq_flags; | |
d6ad3303 | 638 | + dst->nf_queue_entry = src->nf_queue_entry; |
2437dee6 | 639 | +#endif |
640 | #ifdef CONFIG_BRIDGE_NETFILTER | |
641 | dst->nf_bridge = src->nf_bridge; | |
642 | nf_bridge_get(src->nf_bridge); | |
d6ad3303 | 643 | #endif |
644 | } | |
645 | ||
646 | diff -U 6 -Nr linux-2.6.25/net/core/dev.c linux-2.6.25+imq/net/core/dev.c | |
647 | --- linux-2.6.25/net/core/dev.c 2008-04-17 05:49:44.000000000 +0300 | |
648 | +++ linux-2.6.25+imq/net/core/dev.c 2008-04-18 14:54:49.611042584 +0300 | |
649 | @@ -92,12 +92,15 @@ | |
650 | #include <linux/etherdevice.h> | |
651 | #include <linux/notifier.h> | |
652 | #include <linux/skbuff.h> | |
2437dee6 | 653 | #include <net/net_namespace.h> |
654 | #include <net/sock.h> | |
655 | #include <linux/rtnetlink.h> | |
656 | +#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) | |
657 | +#include <linux/imq.h> | |
658 | +#endif | |
659 | #include <linux/proc_fs.h> | |
660 | #include <linux/seq_file.h> | |
661 | #include <linux/stat.h> | |
d6ad3303 | 662 | #include <linux/if_bridge.h> |
663 | #include <linux/if_macvlan.h> | |
664 | #include <net/dst.h> | |
665 | @@ -1534,13 +1537,17 @@ | |
666 | return 0; | |
667 | } | |
668 | ||
2437dee6 | 669 | int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
670 | { | |
671 | if (likely(!skb->next)) { | |
672 | - if (!list_empty(&ptype_all)) | |
673 | + if (!list_empty(&ptype_all) | |
674 | +#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE) | |
675 | + && !(skb->imq_flags & IMQ_F_ENQUEUE) | |
676 | +#endif | |
677 | + ) | |
678 | dev_queue_xmit_nit(skb, dev); | |
f4f8379a | 679 | |
2437dee6 | 680 | if (netif_needs_gso(dev, skb)) { |
d6ad3303 | 681 | if (unlikely(dev_gso_segment(skb))) |
682 | goto out_kfree_skb; | |
683 | if (skb->next) | |
684 | diff -U 6 -Nr linux-2.6.25/net/ipv4/netfilter/ipt_IMQ.c linux-2.6.25+imq/net/ipv4/netfilter/ipt_IMQ.c | |
685 | --- linux-2.6.25/net/ipv4/netfilter/ipt_IMQ.c 1970-01-01 02:00:00.000000000 +0200 | |
686 | +++ linux-2.6.25+imq/net/ipv4/netfilter/ipt_IMQ.c 2008-04-18 14:54:49.614374346 +0300 | |
2437dee6 | 687 | @@ -0,0 +1,69 @@ |
f4f8379a | 688 | +/* |
689 | + * This target marks packets to be enqueued to an imq device | |
690 | + */ | |
691 | +#include <linux/module.h> | |
692 | +#include <linux/skbuff.h> | |
693 | +#include <linux/netfilter_ipv4/ip_tables.h> | |
694 | +#include <linux/netfilter_ipv4/ipt_IMQ.h> | |
695 | +#include <linux/imq.h> | |
696 | + | |
2437dee6 | 697 | +static unsigned int imq_target(struct sk_buff *pskb, |
f4f8379a | 698 | + const struct net_device *in, |
699 | + const struct net_device *out, | |
700 | + unsigned int hooknum, | |
701 | + const struct xt_target *target, | |
702 | + const void *targinfo) | |
703 | +{ | |
704 | + struct ipt_imq_info *mr = (struct ipt_imq_info*)targinfo; | |
705 | + | |
2437dee6 | 706 | + pskb->imq_flags = mr->todev | IMQ_F_ENQUEUE; |
f4f8379a | 707 | + |
708 | + return XT_CONTINUE; | |
709 | +} | |
710 | + | |
2437dee6 | 711 | +static bool imq_checkentry(const char *tablename, |
f4f8379a | 712 | + const void *e, |
713 | + const struct xt_target *target, | |
714 | + void *targinfo, | |
715 | + unsigned int hook_mask) | |
716 | +{ | |
717 | + struct ipt_imq_info *mr; | |
718 | + | |
719 | + mr = (struct ipt_imq_info*)targinfo; | |
720 | + | |
721 | + if (mr->todev > IMQ_MAX_DEVS) { | |
722 | + printk(KERN_WARNING | |
723 | + "IMQ: invalid device specified, highest is %u\n", | |
724 | + IMQ_MAX_DEVS); | |
725 | + return 0; | |
726 | + } | |
727 | + | |
728 | + return 1; | |
729 | +} | |
730 | + | |
731 | +static struct xt_target ipt_imq_reg = { | |
732 | + .name = "IMQ", | |
733 | + .family = AF_INET, | |
734 | + .target = imq_target, | |
735 | + .targetsize = sizeof(struct ipt_imq_info), | |
736 | + .checkentry = imq_checkentry, | |
737 | + .me = THIS_MODULE, | |
738 | + .table = "mangle" | |
739 | +}; | |
740 | + | |
741 | +static int __init init(void) | |
742 | +{ | |
743 | + return xt_register_target(&ipt_imq_reg); | |
744 | +} | |
745 | + | |
746 | +static void __exit fini(void) | |
747 | +{ | |
748 | + xt_unregister_target(&ipt_imq_reg); | |
749 | +} | |
750 | + | |
751 | +module_init(init); | |
752 | +module_exit(fini); | |
753 | + | |
754 | +MODULE_AUTHOR("http://www.linuximq.net"); | |
755 | +MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); | |
756 | +MODULE_LICENSE("GPL"); | |
d6ad3303 | 757 | diff -U 6 -Nr linux-2.6.25/net/ipv4/netfilter/Kconfig linux-2.6.25+imq/net/ipv4/netfilter/Kconfig |
758 | --- linux-2.6.25/net/ipv4/netfilter/Kconfig 2008-04-17 05:49:44.000000000 +0300 | |
759 | +++ linux-2.6.25+imq/net/ipv4/netfilter/Kconfig 2008-04-18 14:59:00.917678729 +0300 | |
760 | @@ -305,12 +305,23 @@ | |
761 | an IP packet. This is particularly useful, if you need to work around | |
762 | existing ECN blackholes on the internet, but don't want to disable | |
763 | ECN support in general. | |
f4f8379a | 764 | |
765 | To compile it as a module, choose M here. If unsure, say N. | |
766 | ||
2437dee6 | 767 | +config IP_NF_TARGET_IMQ |
d6ad3303 | 768 | + tristate "IMQ target support" |
769 | + depends on IP_NF_MANGLE | |
770 | + help | |
771 | + This option adds a `IMQ' target which is used to specify if and | |
772 | + to which IMQ device packets should get enqueued/dequeued. | |
f4f8379a | 773 | + |
d6ad3303 | 774 | + For more information visit: http://www.linuximq.net/ |
f4f8379a | 775 | + |
d6ad3303 | 776 | + To compile it as a module, choose M here. If unsure, say N. |
2437dee6 | 777 | + |
d6ad3303 | 778 | config IP_NF_TARGET_TTL |
779 | tristate 'TTL target support' | |
2437dee6 | 780 | depends on IP_NF_MANGLE |
d6ad3303 | 781 | depends on NETFILTER_ADVANCED |
782 | help | |
783 | This option adds a `TTL' target, which enables the user to modify | |
784 | diff -U 6 -Nr linux-2.6.25/net/ipv4/netfilter/Makefile linux-2.6.25+imq/net/ipv4/netfilter/Makefile | |
785 | --- linux-2.6.25/net/ipv4/netfilter/Makefile 2008-04-17 05:49:44.000000000 +0300 | |
786 | +++ linux-2.6.25+imq/net/ipv4/netfilter/Makefile 2008-04-18 14:54:49.692406744 +0300 | |
0c420048 | 787 | @@ -0,0 +0,1 @@ |
2437dee6 | 788 | +obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o |
d6ad3303 | 789 | diff -U 6 -Nr linux-2.6.25/net/ipv6/netfilter/ip6t_IMQ.c linux-2.6.25+imq/net/ipv6/netfilter/ip6t_IMQ.c |
790 | --- linux-2.6.25/net/ipv6/netfilter/ip6t_IMQ.c 1970-01-01 02:00:00.000000000 +0200 | |
791 | +++ linux-2.6.25+imq/net/ipv6/netfilter/ip6t_IMQ.c 2008-04-18 14:54:49.694398090 +0300 | |
2437dee6 | 792 | @@ -0,0 +1,69 @@ |
f4f8379a | 793 | +/* |
794 | + * This target marks packets to be enqueued to an imq device | |
795 | + */ | |
796 | +#include <linux/module.h> | |
797 | +#include <linux/skbuff.h> | |
798 | +#include <linux/netfilter_ipv6/ip6_tables.h> | |
799 | +#include <linux/netfilter_ipv6/ip6t_IMQ.h> | |
800 | +#include <linux/imq.h> | |
801 | + | |
2437dee6 | 802 | +static unsigned int imq_target(struct sk_buff *pskb, |
f4f8379a | 803 | + const struct net_device *in, |
804 | + const struct net_device *out, | |
805 | + unsigned int hooknum, | |
806 | + const struct xt_target *target, | |
807 | + const void *targinfo) | |
808 | +{ | |
809 | + struct ip6t_imq_info *mr = (struct ip6t_imq_info*)targinfo; | |
810 | + | |
2437dee6 | 811 | + pskb->imq_flags = mr->todev | IMQ_F_ENQUEUE; |
f4f8379a | 812 | + |
813 | + return XT_CONTINUE; | |
814 | +} | |
815 | + | |
2437dee6 | 816 | +static bool imq_checkentry(const char *tablename, |
f4f8379a | 817 | + const void *entry, |
818 | + const struct xt_target *target, | |
819 | + void *targinfo, | |
820 | + unsigned int hook_mask) | |
821 | +{ | |
822 | + struct ip6t_imq_info *mr; | |
823 | + | |
824 | + mr = (struct ip6t_imq_info*)targinfo; | |
825 | + | |
826 | + if (mr->todev > IMQ_MAX_DEVS) { | |
827 | + printk(KERN_WARNING | |
828 | + "IMQ: invalid device specified, highest is %u\n", | |
829 | + IMQ_MAX_DEVS); | |
830 | + return 0; | |
831 | + } | |
832 | + | |
833 | + return 1; | |
834 | +} | |
835 | + | |
836 | +static struct xt_target ip6t_imq_reg = { | |
837 | + .name = "IMQ", | |
2437dee6 | 838 | + .family = AF_INET6, |
f4f8379a | 839 | + .target = imq_target, |
840 | + .targetsize = sizeof(struct ip6t_imq_info), | |
841 | + .table = "mangle", | |
842 | + .checkentry = imq_checkentry, | |
843 | + .me = THIS_MODULE | |
844 | +}; | |
845 | + | |
846 | +static int __init init(void) | |
847 | +{ | |
848 | + return xt_register_target(&ip6t_imq_reg); | |
849 | +} | |
850 | + | |
851 | +static void __exit fini(void) | |
852 | +{ | |
853 | + xt_unregister_target(&ip6t_imq_reg); | |
854 | +} | |
855 | + | |
856 | +module_init(init); | |
857 | +module_exit(fini); | |
858 | + | |
859 | +MODULE_AUTHOR("http://www.linuximq.net"); | |
860 | +MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information."); | |
861 | +MODULE_LICENSE("GPL"); | |
d6ad3303 | 862 | diff -U 6 -Nr linux-2.6.25/net/ipv6/netfilter/Kconfig linux-2.6.25+imq/net/ipv6/netfilter/Kconfig |
863 | --- linux-2.6.25/net/ipv6/netfilter/Kconfig 2008-04-17 05:49:44.000000000 +0300 | |
864 | +++ linux-2.6.25+imq/net/ipv6/netfilter/Kconfig 2008-04-18 14:54:49.771062974 +0300 | |
865 | @@ -176,12 +176,21 @@ | |
866 | This option adds a `mangle' table to iptables: see the man page for | |
867 | iptables(8). This table is used for various packet alterations | |
868 | which can effect how the packet is routed. | |
2437dee6 | 869 | |
870 | To compile it as a module, choose M here. If unsure, say N. | |
871 | ||
872 | +config IP6_NF_TARGET_IMQ | |
873 | + tristate "IMQ target support" | |
874 | + depends on IP6_NF_MANGLE | |
875 | + help | |
876 | + This option adds a `IMQ' target which is used to specify if and | |
877 | + to which imq device packets should get enqueued/dequeued. | |
878 | + | |
879 | + To compile it as a module, choose M here. If unsure, say N. | |
f4f8379a | 880 | + |
2437dee6 | 881 | config IP6_NF_TARGET_HL |
882 | tristate 'HL (hoplimit) target support' | |
883 | depends on IP6_NF_MANGLE | |
d6ad3303 | 884 | depends on NETFILTER_ADVANCED |
885 | help | |
886 | This option adds a `HL' target, which enables the user to decrement | |
887 | diff -U 6 -Nr linux-2.6.25/net/ipv6/netfilter/Makefile linux-2.6.25+imq/net/ipv6/netfilter/Makefile | |
888 | --- linux-2.6.25/net/ipv6/netfilter/Makefile 2008-04-17 05:49:44.000000000 +0300 | |
889 | +++ linux-2.6.25+imq/net/ipv6/netfilter/Makefile 2008-04-18 14:54:49.771062974 +0300 | |
890 | @@ -3,12 +3,13 @@ | |
891 | # | |
892 | ||
893 | # Link order matters here. | |
894 | obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o | |
895 | obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o | |
896 | obj-$(CONFIG_IP6_NF_MANGLE) += ip6table_mangle.o | |
2437dee6 | 897 | +obj-$(CONFIG_IP6_NF_TARGET_IMQ) += ip6t_IMQ.o |
d6ad3303 | 898 | obj-$(CONFIG_IP6_NF_QUEUE) += ip6_queue.o |
899 | obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o | |
900 | ||
901 | # objects for l3 independent conntrack | |
902 | nf_conntrack_ipv6-objs := nf_conntrack_l3proto_ipv6.o nf_conntrack_proto_icmpv6.o nf_conntrack_reasm.o | |
903 | ||
904 | diff -U 6 -Nr linux-2.6.25/net/sched/sch_generic.c linux-2.6.25+imq/net/sched/sch_generic.c | |
905 | --- linux-2.6.25/net/sched/sch_generic.c 2008-04-17 05:49:44.000000000 +0300 | |
906 | +++ linux-2.6.25+imq/net/sched/sch_generic.c 2008-04-18 14:56:21.977691013 +0300 | |
907 | @@ -179,12 +179,18 @@ | |
908 | break; | |
909 | } | |
910 | ||
2437dee6 | 911 | return ret; |
f4f8379a | 912 | } |
913 | ||
914 | +int qdisc_restart1(struct net_device *dev) | |
915 | +{ | |
916 | + return qdisc_restart(dev); | |
917 | +} | |
d6ad3303 | 918 | +EXPORT_SYMBOL(qdisc_restart1); |
f4f8379a | 919 | + |
920 | void __qdisc_run(struct net_device *dev) | |
921 | { | |
d6ad3303 | 922 | unsigned long start_time = jiffies; |
923 | ||
924 | while (qdisc_restart(dev)) { | |
925 | if (netif_queue_stopped(dev)) |