YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 1 | /* net/sched/sch_ingress.c - Ingress qdisc |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * This program is free software; you can redistribute it and/or |
| 3 | * modify it under the terms of the GNU General Public License |
| 4 | * as published by the Free Software Foundation; either version |
| 5 | * 2 of the License, or (at your option) any later version. |
| 6 | * |
| 7 | * Authors: Jamal Hadi Salim 1999 |
| 8 | */ |
| 9 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | #include <linux/module.h> |
| 11 | #include <linux/types.h> |
Patrick McHardy | 0ba4805 | 2007-07-02 22:49:07 -0700 | [diff] [blame] | 12 | #include <linux/list.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/skbuff.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/rtnetlink.h> |
| 15 | #include <linux/netfilter_ipv4.h> |
| 16 | #include <linux/netfilter_ipv6.h> |
| 17 | #include <linux/netfilter.h> |
Arnaldo Carvalho de Melo | dc5fc57 | 2007-03-25 23:06:12 -0700 | [diff] [blame] | 18 | #include <net/netlink.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <net/pkt_sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
| 21 | |
| 22 | #undef DEBUG_INGRESS |
| 23 | |
| 24 | #ifdef DEBUG_INGRESS /* control */ |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 25 | #define DPRINTK(format, args...) printk(KERN_DEBUG format,##args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #else |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 27 | #define DPRINTK(format, args...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #endif |
| 29 | |
| 30 | #if 0 /* data */ |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 31 | #define D2PRINTK(format, args...) printk(KERN_DEBUG format,##args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #else |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 33 | #define D2PRINTK(format, args...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #endif |
| 35 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #define PRIV(sch) qdisc_priv(sch) |
| 37 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 38 | /* Thanks to Doron Oz for this hack */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #ifndef CONFIG_NET_CLS_ACT |
| 40 | #ifdef CONFIG_NETFILTER |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 41 | static int nf_registered; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #endif |
| 43 | #endif |
| 44 | |
| 45 | struct ingress_qdisc_data { |
| 46 | struct Qdisc *q; |
| 47 | struct tcf_proto *filter_list; |
| 48 | }; |
| 49 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | /* ------------------------- Class/flow operations ------------------------- */ |
| 51 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 52 | static int ingress_graft(struct Qdisc *sch, unsigned long arg, |
| 53 | struct Qdisc *new, struct Qdisc **old) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | { |
| 55 | #ifdef DEBUG_INGRESS |
| 56 | struct ingress_qdisc_data *p = PRIV(sch); |
| 57 | #endif |
| 58 | |
| 59 | DPRINTK("ingress_graft(sch %p,[qdisc %p],new %p,old %p)\n", |
| 60 | sch, p, new, old); |
| 61 | DPRINTK("\n ingress_graft: You cannot add qdiscs to classes"); |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 62 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | } |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | static struct Qdisc *ingress_leaf(struct Qdisc *sch, unsigned long arg) |
| 66 | { |
| 67 | return NULL; |
| 68 | } |
| 69 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 70 | static unsigned long ingress_get(struct Qdisc *sch, u32 classid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | { |
| 72 | #ifdef DEBUG_INGRESS |
| 73 | struct ingress_qdisc_data *p = PRIV(sch); |
| 74 | #endif |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 75 | DPRINTK("ingress_get(sch %p,[qdisc %p],classid %x)\n", |
| 76 | sch, p, classid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | return TC_H_MIN(classid) + 1; |
| 78 | } |
| 79 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | static unsigned long ingress_bind_filter(struct Qdisc *sch, |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 81 | unsigned long parent, u32 classid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | { |
| 83 | return ingress_get(sch, classid); |
| 84 | } |
| 85 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | static void ingress_put(struct Qdisc *sch, unsigned long cl) |
| 87 | { |
| 88 | } |
| 89 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | static int ingress_change(struct Qdisc *sch, u32 classid, u32 parent, |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 91 | struct rtattr **tca, unsigned long *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | { |
| 93 | #ifdef DEBUG_INGRESS |
| 94 | struct ingress_qdisc_data *p = PRIV(sch); |
| 95 | #endif |
| 96 | DPRINTK("ingress_change(sch %p,[qdisc %p],classid %x,parent %x)," |
| 97 | "arg 0x%lx\n", sch, p, classid, parent, *arg); |
| 98 | DPRINTK("No effect. sch_ingress doesn't maintain classes at the moment"); |
| 99 | return 0; |
| 100 | } |
| 101 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 102 | static void ingress_walk(struct Qdisc *sch, struct qdisc_walker *walker) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | { |
| 104 | #ifdef DEBUG_INGRESS |
| 105 | struct ingress_qdisc_data *p = PRIV(sch); |
| 106 | #endif |
| 107 | DPRINTK("ingress_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker); |
| 108 | DPRINTK("No effect. sch_ingress doesn't maintain classes at the moment"); |
| 109 | } |
| 110 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 111 | static struct tcf_proto **ingress_find_tcf(struct Qdisc *sch, unsigned long cl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | { |
| 113 | struct ingress_qdisc_data *p = PRIV(sch); |
| 114 | |
| 115 | return &p->filter_list; |
| 116 | } |
| 117 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | /* --------------------------- Qdisc operations ---------------------------- */ |
| 119 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 120 | static int ingress_enqueue(struct sk_buff *skb, struct Qdisc *sch) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | { |
| 122 | struct ingress_qdisc_data *p = PRIV(sch); |
| 123 | struct tcf_result res; |
| 124 | int result; |
| 125 | |
| 126 | D2PRINTK("ingress_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p); |
| 127 | result = tc_classify(skb, p->filter_list, &res); |
| 128 | D2PRINTK("result %d class 0x%04x\n", result, res.classid); |
| 129 | /* |
| 130 | * Unlike normal "enqueue" functions, ingress_enqueue returns a |
| 131 | * firewall FW_* code. |
| 132 | */ |
| 133 | #ifdef CONFIG_NET_CLS_ACT |
| 134 | sch->bstats.packets++; |
| 135 | sch->bstats.bytes += skb->len; |
| 136 | switch (result) { |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 137 | case TC_ACT_SHOT: |
| 138 | result = TC_ACT_SHOT; |
| 139 | sch->qstats.drops++; |
| 140 | break; |
| 141 | case TC_ACT_STOLEN: |
| 142 | case TC_ACT_QUEUED: |
| 143 | result = TC_ACT_STOLEN; |
| 144 | break; |
| 145 | case TC_ACT_RECLASSIFY: |
| 146 | case TC_ACT_OK: |
| 147 | skb->tc_index = TC_H_MIN(res.classid); |
| 148 | default: |
| 149 | result = TC_ACT_OK; |
| 150 | break; |
Stephen Hemminger | 3ff50b7 | 2007-04-20 17:09:22 -0700 | [diff] [blame] | 151 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | #else |
| 153 | D2PRINTK("Overriding result to ACCEPT\n"); |
| 154 | result = NF_ACCEPT; |
| 155 | sch->bstats.packets++; |
| 156 | sch->bstats.bytes += skb->len; |
| 157 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | |
| 159 | return result; |
| 160 | } |
| 161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | static struct sk_buff *ingress_dequeue(struct Qdisc *sch) |
| 163 | { |
| 164 | /* |
| 165 | struct ingress_qdisc_data *p = PRIV(sch); |
| 166 | D2PRINTK("ingress_dequeue(sch %p,[qdisc %p])\n",sch,PRIV(p)); |
| 167 | */ |
| 168 | return NULL; |
| 169 | } |
| 170 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 171 | static int ingress_requeue(struct sk_buff *skb, struct Qdisc *sch) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | { |
| 173 | /* |
| 174 | struct ingress_qdisc_data *p = PRIV(sch); |
| 175 | D2PRINTK("ingress_requeue(skb %p,sch %p,[qdisc %p])\n",skb,sch,PRIV(p)); |
| 176 | */ |
| 177 | return 0; |
| 178 | } |
| 179 | |
| 180 | static unsigned int ingress_drop(struct Qdisc *sch) |
| 181 | { |
| 182 | #ifdef DEBUG_INGRESS |
| 183 | struct ingress_qdisc_data *p = PRIV(sch); |
| 184 | #endif |
| 185 | DPRINTK("ingress_drop(sch %p,[qdisc %p])\n", sch, p); |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | #ifndef CONFIG_NET_CLS_ACT |
| 190 | #ifdef CONFIG_NETFILTER |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 191 | static unsigned int ing_hook(unsigned int hook, struct sk_buff *skb, |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 192 | const struct net_device *indev, |
| 193 | const struct net_device *outdev, |
| 194 | int (*okfn)(struct sk_buff *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | { |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 196 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | struct Qdisc *q; |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 198 | struct net_device *dev = skb->dev; |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 199 | int fwres = NF_ACCEPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
| 201 | DPRINTK("ing_hook: skb %s dev=%s len=%u\n", |
| 202 | skb->sk ? "(owned)" : "(unowned)", |
Herbert Xu | 3db05fe | 2007-10-15 00:53:15 -0700 | [diff] [blame] | 203 | skb->dev ? skb->dev->name : "(no dev)", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | skb->len); |
| 205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | if (dev->qdisc_ingress) { |
Patrick McHardy | fd44de7 | 2007-04-16 17:07:08 -0700 | [diff] [blame] | 207 | spin_lock(&dev->ingress_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | if ((q = dev->qdisc_ingress) != NULL) |
| 209 | fwres = q->enqueue(skb, q); |
Patrick McHardy | fd44de7 | 2007-04-16 17:07:08 -0700 | [diff] [blame] | 210 | spin_unlock(&dev->ingress_lock); |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 211 | } |
| 212 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | return fwres; |
| 214 | } |
| 215 | |
| 216 | /* after ipt_filter */ |
Patrick McHardy | 1999414 | 2007-12-05 01:23:00 -0800 | [diff] [blame] | 217 | static struct nf_hook_ops ing_ops[] __read_mostly = { |
Patrick McHardy | 41c5b31 | 2007-12-05 01:22:43 -0800 | [diff] [blame] | 218 | { |
| 219 | .hook = ing_hook, |
| 220 | .owner = THIS_MODULE, |
| 221 | .pf = PF_INET, |
| 222 | .hooknum = NF_INET_PRE_ROUTING, |
| 223 | .priority = NF_IP_PRI_FILTER + 1, |
| 224 | }, |
| 225 | { |
| 226 | .hook = ing_hook, |
| 227 | .owner = THIS_MODULE, |
| 228 | .pf = PF_INET6, |
| 229 | .hooknum = NF_INET_PRE_ROUTING, |
| 230 | .priority = NF_IP6_PRI_FILTER + 1, |
| 231 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | #endif |
| 234 | #endif |
| 235 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 236 | static int ingress_init(struct Qdisc *sch, struct rtattr *opt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | { |
| 238 | struct ingress_qdisc_data *p = PRIV(sch); |
| 239 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 240 | /* Make sure either netfilter or preferably CLS_ACT is |
| 241 | * compiled in */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | #ifndef CONFIG_NET_CLS_ACT |
| 243 | #ifndef CONFIG_NETFILTER |
| 244 | printk("You MUST compile classifier actions into the kernel\n"); |
| 245 | return -EINVAL; |
| 246 | #else |
| 247 | printk("Ingress scheduler: Classifier actions prefered over netfilter\n"); |
| 248 | #endif |
| 249 | #endif |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | #ifndef CONFIG_NET_CLS_ACT |
| 252 | #ifdef CONFIG_NETFILTER |
| 253 | if (!nf_registered) { |
Patrick McHardy | 41c5b31 | 2007-12-05 01:22:43 -0800 | [diff] [blame] | 254 | if (nf_register_hooks(ing_ops, ARRAY_SIZE(ing_ops)) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | printk("ingress qdisc registration error \n"); |
| 256 | return -EINVAL; |
| 257 | } |
| 258 | nf_registered++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | #endif |
| 261 | #endif |
| 262 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 263 | DPRINTK("ingress_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | p->q = &noop_qdisc; |
| 265 | return 0; |
| 266 | } |
| 267 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | static void ingress_reset(struct Qdisc *sch) |
| 269 | { |
| 270 | struct ingress_qdisc_data *p = PRIV(sch); |
| 271 | |
| 272 | DPRINTK("ingress_reset(sch %p,[qdisc %p])\n", sch, p); |
| 273 | |
| 274 | /* |
| 275 | #if 0 |
| 276 | */ |
| 277 | /* for future use */ |
| 278 | qdisc_reset(p->q); |
| 279 | /* |
| 280 | #endif |
| 281 | */ |
| 282 | } |
| 283 | |
| 284 | /* ------------------------------------------------------------- */ |
| 285 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | static void ingress_destroy(struct Qdisc *sch) |
| 287 | { |
| 288 | struct ingress_qdisc_data *p = PRIV(sch); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
| 290 | DPRINTK("ingress_destroy(sch %p,[qdisc %p])\n", sch, p); |
Patrick McHardy | a48b5a6 | 2007-03-23 11:29:43 -0700 | [diff] [blame] | 291 | tcf_destroy_chain(p->filter_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | #if 0 |
| 293 | /* for future use */ |
| 294 | qdisc_destroy(p->q); |
| 295 | #endif |
| 296 | } |
| 297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb) |
| 299 | { |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 300 | unsigned char *b = skb_tail_pointer(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | struct rtattr *rta; |
| 302 | |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 303 | rta = (struct rtattr *)b; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | RTA_PUT(skb, TCA_OPTIONS, 0, NULL); |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 305 | rta->rta_len = skb_tail_pointer(skb) - b; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | return skb->len; |
| 307 | |
| 308 | rtattr_failure: |
Arnaldo Carvalho de Melo | dc5fc57 | 2007-03-25 23:06:12 -0700 | [diff] [blame] | 309 | nlmsg_trim(skb, b); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | return -1; |
| 311 | } |
| 312 | |
Eric Dumazet | 20fea08 | 2007-11-14 01:44:41 -0800 | [diff] [blame] | 313 | static const struct Qdisc_class_ops ingress_class_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | .graft = ingress_graft, |
| 315 | .leaf = ingress_leaf, |
| 316 | .get = ingress_get, |
| 317 | .put = ingress_put, |
| 318 | .change = ingress_change, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | .walk = ingress_walk, |
| 320 | .tcf_chain = ingress_find_tcf, |
| 321 | .bind_tcf = ingress_bind_filter, |
| 322 | .unbind_tcf = ingress_put, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | }; |
| 324 | |
Eric Dumazet | 20fea08 | 2007-11-14 01:44:41 -0800 | [diff] [blame] | 325 | static struct Qdisc_ops ingress_qdisc_ops __read_mostly = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | .cl_ops = &ingress_class_ops, |
| 327 | .id = "ingress", |
| 328 | .priv_size = sizeof(struct ingress_qdisc_data), |
| 329 | .enqueue = ingress_enqueue, |
| 330 | .dequeue = ingress_dequeue, |
| 331 | .requeue = ingress_requeue, |
| 332 | .drop = ingress_drop, |
| 333 | .init = ingress_init, |
| 334 | .reset = ingress_reset, |
| 335 | .destroy = ingress_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | .dump = ingress_dump, |
| 337 | .owner = THIS_MODULE, |
| 338 | }; |
| 339 | |
| 340 | static int __init ingress_module_init(void) |
| 341 | { |
| 342 | int ret = 0; |
| 343 | |
| 344 | if ((ret = register_qdisc(&ingress_qdisc_ops)) < 0) { |
| 345 | printk("Unable to register Ingress qdisc\n"); |
| 346 | return ret; |
| 347 | } |
| 348 | |
| 349 | return ret; |
| 350 | } |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 351 | |
YOSHIFUJI Hideaki | 10297b9 | 2007-02-09 23:25:16 +0900 | [diff] [blame] | 352 | static void __exit ingress_module_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | { |
| 354 | unregister_qdisc(&ingress_qdisc_ops); |
| 355 | #ifndef CONFIG_NET_CLS_ACT |
| 356 | #ifdef CONFIG_NETFILTER |
Patrick McHardy | 41c5b31 | 2007-12-05 01:22:43 -0800 | [diff] [blame] | 357 | if (nf_registered) |
| 358 | nf_unregister_hooks(ing_ops, ARRAY_SIZE(ing_ops)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | #endif |
| 360 | #endif |
| 361 | } |
Patrick McHardy | 58f4df4 | 2008-01-21 00:11:01 -0800 | [diff] [blame^] | 362 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | module_init(ingress_module_init) |
| 364 | module_exit(ingress_module_exit) |
| 365 | MODULE_LICENSE("GPL"); |