This commit was manufactured by cvs2svn to create tag
[linux-2.6.git] / net / sched / cls_fw.c
index 8c214cf..3ef2508 100644 (file)
@@ -22,7 +22,7 @@
 #include <linux/module.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
-#include <linux/bitops.h>
+#include <asm/bitops.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
@@ -43,8 +43,7 @@
 #include <net/route.h>
 #include <linux/skbuff.h>
 #include <net/sock.h>
-#include <net/act_api.h>
-#include <net/pkt_cls.h>
+#include <net/pkt_sched.h>
 
 struct fw_head
 {
@@ -56,16 +55,16 @@ struct fw_filter
        struct fw_filter        *next;
        u32                     id;
        struct tcf_result       res;
-#ifdef CONFIG_NET_CLS_IND
-       char                    indev[IFNAMSIZ];
-#endif /* CONFIG_NET_CLS_IND */
 #ifdef CONFIG_NET_CLS_ACT
-       struct tc_action        *action;
-#else /* CONFIG_NET_CLS_ACT */
+       struct tc_action        *action;
+#ifdef CONFIG_NET_CLS_IND
+       char                    indev[IFNAMSIZ];
+#endif
+#else
 #ifdef CONFIG_NET_CLS_POLICE
        struct tcf_police       *police;
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
+#endif
+#endif
 };
 
 static __inline__ int fw_hash(u32 handle)
@@ -84,39 +83,47 @@ static int fw_classify(struct sk_buff *skb, struct tcf_proto *tp,
        u32 id = 0;
 #endif
 
-       if (head != NULL) {
-               for (f=head->ht[fw_hash(id)]; f; f=f->next) {
-                       if (f->id == id) {
-                               *res = f->res;
-#ifdef CONFIG_NET_CLS_IND
-                               if (!tcf_match_indev(skb, f->indev))
-                                       continue;
-#endif /* CONFIG_NET_CLS_IND */
+       if (head == NULL)
+               goto old_method;
+
+       for (f=head->ht[fw_hash(id)]; f; f=f->next) {
+               if (f->id == id) {
+                       *res = f->res;
 #ifdef CONFIG_NET_CLS_ACT
-                               if (f->action) {
-                                       int act_res = tcf_action_exec(skb, f->action, res);
-                                       if (act_res >= 0)
-                                               return act_res;
+#ifdef CONFIG_NET_CLS_IND
+                       if (0 != f->indev[0]) {
+                               if  (NULL == skb->input_dev) {
                                        continue;
+                               } else {
+                                       if (0 != strcmp(f->indev, skb->input_dev->name)) {
+                                               continue;
+                                       }
                                }
-#else /* CONFIG_NET_CLS_ACT */
-#ifdef CONFIG_NET_CLS_POLICE
-                               if (f->police)
-                                       return tcf_police(skb, f->police);
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
-                               return 0;
                        }
-               }
-       } else {
-               /* old method */
-               if (id && (TC_H_MAJ(id) == 0 || !(TC_H_MAJ(id^tp->q->handle)))) {
-                       res->classid = id;
-                       res->class = 0;
+#endif
+                               if (f->action) {
+                                       int pol_res = tcf_action_exec(skb, f->action, res);
+                                       if (pol_res >= 0)
+                                               return pol_res;
+                               } else
+#else
+#ifdef CONFIG_NET_CLS_POLICE
+                       if (f->police)
+                               return tcf_police(skb, f->police);
+#endif
+#endif
                        return 0;
                }
        }
+       return -1;
 
+old_method:
+       if (id && (TC_H_MAJ(id) == 0 ||
+                    !(TC_H_MAJ(id^tp->q->handle)))) {
+               res->classid = id;
+               res->class = 0;
+               return 0;
+       }
        return -1;
 }
 
@@ -155,17 +162,20 @@ static void fw_destroy(struct tcf_proto *tp)
 
        for (h=0; h<256; h++) {
                while ((f=head->ht[h]) != NULL) {
+                       unsigned long cl;
                        head->ht[h] = f->next;
-                       tcf_unbind_filter(tp, &f->res);
+
+                       if ((cl = __cls_set_class(&f->res.class, 0)) != 0)
+                               tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
 #ifdef CONFIG_NET_CLS_ACT
-                       if (f->action)
-                               tcf_action_destroy(f->action, TCA_ACT_UNBIND);
-#else /* CONFIG_NET_CLS_ACT */
+       if (f->action) {
+               tcf_action_destroy(f->action,TCA_ACT_UNBIND);
+       }
+#else
 #ifdef CONFIG_NET_CLS_POLICE
-                       if (f->police)
-                               tcf_police_release(f->police, TCA_ACT_UNBIND);
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
+                       tcf_police_release(f->police,TCA_ACT_UNBIND);
+#endif
+#endif
 
                        kfree(f);
                }
@@ -184,18 +194,23 @@ static int fw_delete(struct tcf_proto *tp, unsigned long arg)
 
        for (fp=&head->ht[fw_hash(f->id)]; *fp; fp = &(*fp)->next) {
                if (*fp == f) {
+                       unsigned long cl;
+
                        tcf_tree_lock(tp);
                        *fp = f->next;
                        tcf_tree_unlock(tp);
-                       tcf_unbind_filter(tp, &f->res);
+
+                       if ((cl = cls_set_class(tp, &f->res.class, 0)) != 0)
+                               tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
 #ifdef CONFIG_NET_CLS_ACT
-                       if (f->action)
-                               tcf_action_destroy(f->action,TCA_ACT_UNBIND);
-#else /* CONFIG_NET_CLS_ACT */
+       if (f->action) {
+               tcf_action_destroy(f->action,TCA_ACT_UNBIND);
+       }
+#else
 #ifdef CONFIG_NET_CLS_POLICE
                        tcf_police_release(f->police,TCA_ACT_UNBIND);
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
+#endif
+#endif
                        kfree(f);
                        return 0;
                }
@@ -204,67 +219,21 @@ out:
        return -EINVAL;
 }
 
-static int
-fw_change_attrs(struct tcf_proto *tp, struct fw_filter *f,
-       struct rtattr **tb, struct rtattr **tca, unsigned long base)
-{
-       int err = -EINVAL;
-
-       if (tb[TCA_FW_CLASSID-1]) {
-               if (RTA_PAYLOAD(tb[TCA_FW_CLASSID-1]) != sizeof(u32))
-                       goto errout;
-               f->res.classid = *(u32*)RTA_DATA(tb[TCA_FW_CLASSID-1]);
-               tcf_bind_filter(tp, &f->res, base);
-       }
-
-#ifdef CONFIG_NET_CLS_IND
-       if (tb[TCA_FW_INDEV-1]) {
-               err = tcf_change_indev(tp, f->indev, tb[TCA_FW_INDEV-1]);
-               if (err < 0)
-                       goto errout;
-       }
-#endif /* CONFIG_NET_CLS_IND */
-
-#ifdef CONFIG_NET_CLS_ACT
-       if (tb[TCA_FW_POLICE-1]) {
-               err = tcf_change_act_police(tp, &f->action, tb[TCA_FW_POLICE-1],
-                       tca[TCA_RATE-1]);
-               if (err < 0)
-                       goto errout;
-       }
-
-       if (tb[TCA_FW_ACT-1]) {
-               err = tcf_change_act(tp, &f->action, tb[TCA_FW_ACT-1],
-                       tca[TCA_RATE-1]);
-               if (err < 0)
-                       goto errout;
-       }
-#else /* CONFIG_NET_CLS_ACT */
-#ifdef CONFIG_NET_CLS_POLICE
-       if (tb[TCA_FW_POLICE-1]) {
-               err = tcf_change_police(tp, &f->police, tb[TCA_FW_POLICE-1],
-                       tca[TCA_RATE-1]);
-               if (err < 0)
-                       goto errout;
-       }
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
-
-       err = 0;
-errout:
-       return err;
-}
-
 static int fw_change(struct tcf_proto *tp, unsigned long base,
                     u32 handle,
                     struct rtattr **tca,
                     unsigned long *arg)
 {
        struct fw_head *head = (struct fw_head*)tp->root;
-       struct fw_filter *f = (struct fw_filter *) *arg;
+       struct fw_filter *f;
        struct rtattr *opt = tca[TCA_OPTIONS-1];
        struct rtattr *tb[TCA_FW_MAX];
        int err;
+#ifdef CONFIG_NET_CLS_ACT
+       struct tc_action *act = NULL;
+       int ret;
+#endif
+
 
        if (!opt)
                return handle ? -EINVAL : 0;
@@ -272,10 +241,85 @@ static int fw_change(struct tcf_proto *tp, unsigned long base,
        if (rtattr_parse(tb, TCA_FW_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt)) < 0)
                return -EINVAL;
 
-       if (f != NULL) {
+       if ((f = (struct fw_filter*)*arg) != NULL) {
+               /* Node exists: adjust only classid */
+
                if (f->id != handle && handle)
                        return -EINVAL;
-               return fw_change_attrs(tp, f, tb, tca, base);
+               if (tb[TCA_FW_CLASSID-1]) {
+                       unsigned long cl;
+
+                       f->res.classid = *(u32*)RTA_DATA(tb[TCA_FW_CLASSID-1]);
+                       cl = tp->q->ops->cl_ops->bind_tcf(tp->q, base, f->res.classid);
+                       cl = cls_set_class(tp, &f->res.class, cl);
+                       if (cl)
+                               tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
+               }
+#ifdef CONFIG_NET_CLS_ACT
+               if (tb[TCA_FW_POLICE-1]) {
+                       act = kmalloc(sizeof(*act),GFP_KERNEL);
+                       if (NULL == act)
+                               return -ENOMEM;
+
+                       memset(act,0,sizeof(*act));
+                       ret = tcf_action_init_1(tb[TCA_FW_POLICE-1], tca[TCA_RATE-1] ,act,"police",TCA_ACT_NOREPLACE,TCA_ACT_BIND);
+                       if (0 > ret){
+                               tcf_action_destroy(act,TCA_ACT_UNBIND);
+                               return ret;
+                       }
+                       act->type = TCA_OLD_COMPAT;
+
+                       sch_tree_lock(tp->q);
+                       act = xchg(&f->action, act);
+                       sch_tree_unlock(tp->q);
+
+                       tcf_action_destroy(act,TCA_ACT_UNBIND);
+
+               }
+
+               if(tb[TCA_FW_ACT-1]) {
+                       act = kmalloc(sizeof(*act),GFP_KERNEL);
+                       if (NULL == act)
+                               return -ENOMEM;
+                       memset(act,0,sizeof(*act));
+                       ret = tcf_action_init(tb[TCA_FW_ACT-1], tca[TCA_RATE-1],act,NULL, TCA_ACT_NOREPLACE,TCA_ACT_BIND);
+                       if (0 > ret) {
+                               tcf_action_destroy(act,TCA_ACT_UNBIND);
+                               return ret;
+                       }
+
+                       sch_tree_lock(tp->q);
+                       act = xchg(&f->action, act);
+                       sch_tree_unlock(tp->q);
+
+                       tcf_action_destroy(act,TCA_ACT_UNBIND);
+               }
+#ifdef CONFIG_NET_CLS_IND
+               if(tb[TCA_FW_INDEV-1]) {
+                       struct rtattr *idev = tb[TCA_FW_INDEV-1];
+                       if (RTA_PAYLOAD(idev) >= IFNAMSIZ) {
+                               printk("cls_fw: bad indev name %s\n",(char*)RTA_DATA(idev));
+                               err = -EINVAL;
+                               goto errout;
+                       }
+                       memset(f->indev,0,IFNAMSIZ);
+                       sprintf(f->indev, "%s", (char*)RTA_DATA(idev));
+               }
+#endif
+#else /* only POLICE defined */
+#ifdef CONFIG_NET_CLS_POLICE
+               if (tb[TCA_FW_POLICE-1]) {
+                       struct tcf_police *police = tcf_police_locate(tb[TCA_FW_POLICE-1], tca[TCA_RATE-1]);
+
+                       tcf_tree_lock(tp);
+                       police = xchg(&f->police, police);
+                       tcf_tree_unlock(tp);
+
+                       tcf_police_release(police,TCA_ACT_UNBIND);
+               }
+#endif
+#endif
+               return 0;
        }
 
        if (!handle)
@@ -299,9 +343,45 @@ static int fw_change(struct tcf_proto *tp, unsigned long base,
 
        f->id = handle;
 
-       err = fw_change_attrs(tp, f, tb, tca, base);
-       if (err < 0)
-               goto errout;
+       if (tb[TCA_FW_CLASSID-1]) {
+               err = -EINVAL;
+               if (RTA_PAYLOAD(tb[TCA_FW_CLASSID-1]) != 4)
+                       goto errout;
+               f->res.classid = *(u32*)RTA_DATA(tb[TCA_FW_CLASSID-1]);
+               cls_set_class(tp, &f->res.class, tp->q->ops->cl_ops->bind_tcf(tp->q, base, f->res.classid));
+       }
+
+#ifdef CONFIG_NET_CLS_ACT
+       if(tb[TCA_FW_ACT-1]) {
+               act = kmalloc(sizeof(*act),GFP_KERNEL);
+               if (NULL == act)
+                       return -ENOMEM;
+               memset(act,0,sizeof(*act));
+               ret = tcf_action_init(tb[TCA_FW_ACT-1], tca[TCA_RATE-1],act,NULL,TCA_ACT_NOREPLACE,TCA_ACT_BIND);
+               if (0 > ret) {
+                       tcf_action_destroy(act,TCA_ACT_UNBIND);
+                       return ret;
+               }
+               f->action= act;
+       }
+#ifdef CONFIG_NET_CLS_IND
+               if(tb[TCA_FW_INDEV-1]) {
+                       struct rtattr *idev = tb[TCA_FW_INDEV-1];
+                       if (RTA_PAYLOAD(idev) >= IFNAMSIZ) {
+                               printk("cls_fw: bad indev name %s\n",(char*)RTA_DATA(idev));
+                               err = -EINVAL;
+                               goto errout;
+                       }
+                       memset(f->indev,0,IFNAMSIZ);
+                       sprintf(f->indev, "%s", (char*)RTA_DATA(idev));
+               }
+#endif
+#else
+#ifdef CONFIG_NET_CLS_POLICE
+       if (tb[TCA_FW_POLICE-1])
+               f->police = tcf_police_locate(tb[TCA_FW_POLICE-1], tca[TCA_RATE-1]);
+#endif
+#endif
 
        f->next = head->ht[fw_hash(handle)];
        tcf_tree_lock(tp);
@@ -338,7 +418,7 @@ static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg)
                        }
                        if (arg->fn(tp, (unsigned long)f, arg) < 0) {
                                arg->stop = 1;
-                               return;
+                               break;
                        }
                        arg->count++;
                }
@@ -357,15 +437,15 @@ static int fw_dump(struct tcf_proto *tp, unsigned long fh,
 
        t->tcm_handle = f->id;
 
-       if (!f->res.classid
+       if (!f->res.classid
 #ifdef CONFIG_NET_CLS_ACT
-               && !f->action
+           && !f->action
 #else
 #ifdef CONFIG_NET_CLS_POLICE
-               && !f->police
+           && !f->police
 #endif
 #endif
-               )
+           )
                return skb->len;
 
        rta = (struct rtattr*)b;
@@ -373,33 +453,65 @@ static int fw_dump(struct tcf_proto *tp, unsigned long fh,
 
        if (f->res.classid)
                RTA_PUT(skb, TCA_FW_CLASSID, 4, &f->res.classid);
+#ifdef CONFIG_NET_CLS_ACT
+               /* again for backward compatible mode - we want
+               *  to work with both old and new modes of entering
+               *  tc data even if iproute2  was newer - jhs
+               */
+       if (f->action) {
+               struct rtattr * p_rta = (struct rtattr*)skb->tail;
+
+               if (f->action->type != TCA_OLD_COMPAT) {
+                       RTA_PUT(skb, TCA_FW_ACT, 0, NULL);
+                       if (tcf_action_dump(skb,f->action,0,0) < 0) {
+                               goto rtattr_failure;
+                       }
+               } else {
+                       RTA_PUT(skb, TCA_FW_POLICE, 0, NULL);
+                       if (tcf_action_dump_old(skb,f->action,0,0) < 0) {
+                               goto rtattr_failure;
+                       }
+               }
+
+               p_rta->rta_len = skb->tail - (u8*)p_rta;
+       }
 #ifdef CONFIG_NET_CLS_IND
-       if (strlen(f->indev))
+       if(strlen(f->indev)) {
+               struct rtattr * p_rta = (struct rtattr*)skb->tail;
                RTA_PUT(skb, TCA_FW_INDEV, IFNAMSIZ, f->indev);
-#endif /* CONFIG_NET_CLS_IND */
-#ifdef CONFIG_NET_CLS_ACT
-       if (tcf_dump_act(skb, f->action, TCA_FW_ACT, TCA_FW_POLICE) < 0)
-               goto rtattr_failure;
-#else /* CONFIG_NET_CLS_ACT */
+               p_rta->rta_len = skb->tail - (u8*)p_rta;
+       }
+#endif
+#else
 #ifdef CONFIG_NET_CLS_POLICE
-       if (tcf_dump_police(skb, f->police, TCA_FW_POLICE) < 0)
-               goto rtattr_failure;
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
+       if (f->police) {
+               struct rtattr * p_rta = (struct rtattr*)skb->tail;
 
-       rta->rta_len = skb->tail - b;
-#ifdef CONFIG_NET_CLS_ACT
-       if (f->action && f->action->type == TCA_OLD_COMPAT) {
-               if (tcf_action_copy_stats(skb,f->action))
+               RTA_PUT(skb, TCA_FW_POLICE, 0, NULL);
+
+               if (tcf_police_dump(skb, f->police) < 0)
                        goto rtattr_failure;
+
+               p_rta->rta_len = skb->tail - (u8*)p_rta;
        }
-#else /* CONFIG_NET_CLS_ACT */
+#endif
+#endif
+
+       rta->rta_len = skb->tail - b;
+#ifdef CONFIG_NET_CLS_ACT
+       if (f->action && f->action->type == TCA_OLD_COMPAT) {
+               if (tcf_action_copy_stats(skb,f->action))
+                       goto rtattr_failure;
+       }
+#else
 #ifdef CONFIG_NET_CLS_POLICE
-       if (f->police)
-               if (tcf_police_dump_stats(skb, f->police) < 0)
+       if (f->police) {
+               if (qdisc_copy_stats(skb, &f->police->stats,
+                                    f->police->stats_lock))
                        goto rtattr_failure;
-#endif /* CONFIG_NET_CLS_POLICE */
-#endif /* CONFIG_NET_CLS_ACT */
+       }
+#endif
+#endif
        return skb->len;
 
 rtattr_failure: