#ifndef __NET_PKT_CLS_H
#define __NET_PKT_CLS_H
-
#include <linux/pkt_cls.h>
-
-struct rtattr;
-struct tcmsg;
+#include <net/sch_generic.h>
+#include <net/act_api.h>
/* Basic packet classifier frontend definitions. */
-struct tcf_result
-{
- unsigned long class;
- u32 classid;
-};
-
-struct tcf_proto
-{
- /* Fast access part */
- struct tcf_proto *next;
- void *root;
- int (*classify)(struct sk_buff*, struct tcf_proto*, struct tcf_result *);
- u32 protocol;
-
- /* All the rest */
- u32 prio;
- u32 classid;
- struct Qdisc *q;
- void *data;
- struct tcf_proto_ops *ops;
-};
-
struct tcf_walker
{
int stop;
int (*fn)(struct tcf_proto *, unsigned long node, struct tcf_walker *);
};
-struct module;
+extern int register_tcf_proto_ops(struct tcf_proto_ops *ops);
+extern int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
+extern int ing_filter(struct sk_buff *skb);
-struct tcf_proto_ops
+static inline unsigned long
+__cls_set_class(unsigned long *clp, unsigned long cl)
{
- struct tcf_proto_ops *next;
- char kind[IFNAMSIZ];
+ unsigned long old_cl;
+
+ old_cl = *clp;
+ *clp = cl;
+ return old_cl;
+}
- int (*classify)(struct sk_buff*, struct tcf_proto*, struct tcf_result *);
- int (*init)(struct tcf_proto*);
- void (*destroy)(struct tcf_proto*);
+static inline unsigned long
+cls_set_class(struct tcf_proto *tp, unsigned long *clp,
+ unsigned long cl)
+{
+ unsigned long old_cl;
+
+ tcf_tree_lock(tp);
+ old_cl = __cls_set_class(clp, cl);
+ tcf_tree_unlock(tp);
+
+ return old_cl;
+}
- unsigned long (*get)(struct tcf_proto*, u32 handle);
- void (*put)(struct tcf_proto*, unsigned long);
- int (*change)(struct tcf_proto*, unsigned long, u32 handle, struct rtattr **, unsigned long *);
- int (*delete)(struct tcf_proto*, unsigned long);
- void (*walk)(struct tcf_proto*, struct tcf_walker *arg);
+static inline void
+tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base)
+{
+ unsigned long cl;
- /* rtnetlink specific */
- int (*dump)(struct tcf_proto*, unsigned long, struct sk_buff *skb, struct tcmsg*);
+ cl = tp->q->ops->cl_ops->bind_tcf(tp->q, base, r->classid);
+ cl = cls_set_class(tp, &r->class, cl);
+ if (cl)
+ tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
+}
- struct module *owner;
-};
+static inline void
+tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r)
+{
+ unsigned long cl;
-/* Main classifier routine: scans classifier chain attached
- to this qdisc, (optionally) tests for protocol and asks
- specific classifiers.
- */
+ if ((cl = __cls_set_class(&r->class, 0)) != 0)
+ tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
+}
-static inline int tc_classify(struct sk_buff *skb, struct tcf_proto *tp, struct tcf_result *res)
-{
- int err = 0;
- u32 protocol = skb->protocol;
#ifdef CONFIG_NET_CLS_ACT
- struct tcf_proto *otp = tp;
-reclassify:
-#endif
- protocol = skb->protocol;
+static inline int
+tcf_change_act_police(struct tcf_proto *tp, struct tc_action **action,
+ struct rtattr *act_police_tlv, struct rtattr *rate_tlv)
+{
+ int ret;
+ struct tc_action *act;
+
+ act = kmalloc(sizeof(*act), GFP_KERNEL);
+ if (NULL == act)
+ return -ENOMEM;
+ memset(act, 0, sizeof(*act));
+
+ ret = tcf_action_init_1(act_police_tlv, rate_tlv, act, "police",
+ TCA_ACT_NOREPLACE, TCA_ACT_BIND);
+ if (ret < 0) {
+ tcf_action_destroy(act, TCA_ACT_UNBIND);
+ return ret;
+ }
- for ( ; tp; tp = tp->next) {
- if ((tp->protocol == protocol ||
- tp->protocol == __constant_htons(ETH_P_ALL)) &&
- (err = tp->classify(skb, tp, res)) >= 0) {
-#ifdef CONFIG_NET_CLS_ACT
- if ( TC_ACT_RECLASSIFY == err) {
- __u32 verd = (__u32) G_TC_VERD(skb->tc_verd);
- tp = otp;
-
- if (MAX_REC_LOOP < verd++) {
- printk("rule prio %d protocol %02x reclassify is buggy packet dropped\n",tp->prio&0xffff, ntohs(tp->protocol));
- return TC_ACT_SHOT;
- }
- skb->tc_verd = SET_TC_VERD(skb->tc_verd,verd);
- goto reclassify;
- } else {
- if (skb->tc_verd)
- skb->tc_verd = SET_TC_VERD(skb->tc_verd,0);
- return err;
- }
-#else
-
- return err;
-#endif
- }
+ act->type = TCA_OLD_COMPAT;
+
+ if (*action) {
+ tcf_tree_lock(tp);
+ act = xchg(action, act);
+ tcf_tree_unlock(tp);
+
+ tcf_action_destroy(act, TCA_ACT_UNBIND);
+ } else
+ *action = act;
+
+ return 0;
+}
+
+static inline int
+tcf_change_act(struct tcf_proto *tp, struct tc_action **action,
+ struct rtattr *act_tlv, struct rtattr *rate_tlv)
+{
+ int ret;
+ struct tc_action *act;
+
+ act = kmalloc(sizeof(*act), GFP_KERNEL);
+ if (NULL == act)
+ return -ENOMEM;
+ memset(act, 0, sizeof(*act));
+
+ ret = tcf_action_init(act_tlv, rate_tlv, act, NULL,
+ TCA_ACT_NOREPLACE, TCA_ACT_BIND);
+ if (ret < 0) {
+ tcf_action_destroy(act, TCA_ACT_UNBIND);
+ return ret;
+ }
+
+ if (*action) {
+ tcf_tree_lock(tp);
+ act = xchg(action, act);
+ tcf_tree_unlock(tp);
+
+ tcf_action_destroy(act, TCA_ACT_UNBIND);
+ } else
+ *action = act;
+ return 0;
+}
+
+static inline int
+tcf_dump_act(struct sk_buff *skb, struct tc_action *action,
+ int act_type, int compat_type)
+{
+ /*
+ * 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 (action) {
+ struct rtattr * p_rta = (struct rtattr*) skb->tail;
+
+ if (action->type != TCA_OLD_COMPAT) {
+ RTA_PUT(skb, act_type, 0, NULL);
+ if (tcf_action_dump(skb, action, 0, 0) < 0)
+ goto rtattr_failure;
+ } else {
+ RTA_PUT(skb, compat_type, 0, NULL);
+ if (tcf_action_dump_old(skb, action, 0, 0) < 0)
+ goto rtattr_failure;
+ }
+
+ p_rta->rta_len = skb->tail - (u8*)p_rta;
}
+ return 0;
+
+rtattr_failure:
return -1;
}
+#endif /* CONFIG_NET_CLS_ACT */
-static inline void tcf_destroy(struct tcf_proto *tp)
+#ifdef CONFIG_NET_CLS_IND
+static inline int
+tcf_change_indev(struct tcf_proto *tp, char *indev, struct rtattr *indev_tlv)
{
- tp->ops->destroy(tp);
- module_put(tp->ops->owner);
- kfree(tp);
+ if (RTA_PAYLOAD(indev_tlv) >= IFNAMSIZ) {
+ printk("cls: bad indev name %s\n", (char *) RTA_DATA(indev_tlv));
+ return -EINVAL;
+ }
+
+ memset(indev, 0, IFNAMSIZ);
+ sprintf(indev, "%s", (char *) RTA_DATA(indev_tlv));
+
+ return 0;
}
-extern int register_tcf_proto_ops(struct tcf_proto_ops *ops);
-extern int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
-extern int ing_filter(struct sk_buff *skb);
+static inline int
+tcf_match_indev(struct sk_buff *skb, char *indev)
+{
+ if (0 != indev[0]) {
+ if (NULL == skb->input_dev)
+ return 0;
+ else if (0 != strcmp(indev, skb->input_dev->name))
+ return 0;
+ }
+
+ return 1;
+}
+#endif /* CONFIG_NET_CLS_IND */
+
+#ifdef CONFIG_NET_CLS_POLICE
+static inline int
+tcf_change_police(struct tcf_proto *tp, struct tcf_police **police,
+ struct rtattr *police_tlv, struct rtattr *rate_tlv)
+{
+ struct tcf_police *p = tcf_police_locate(police_tlv, rate_tlv);
+
+ if (*police) {
+ tcf_tree_lock(tp);
+ p = xchg(police, p);
+ tcf_tree_unlock(tp);
+ tcf_police_release(p, TCA_ACT_UNBIND);
+ } else
+ *police = p;
+ return 0;
+}
+static inline int
+tcf_dump_police(struct sk_buff *skb, struct tcf_police *police,
+ int police_type)
+{
+ if (police) {
+ struct rtattr * p_rta = (struct rtattr*) skb->tail;
+
+ RTA_PUT(skb, police_type, 0, NULL);
+
+ if (tcf_police_dump(skb, police) < 0)
+ goto rtattr_failure;
+
+ p_rta->rta_len = skb->tail - (u8*)p_rta;
+ }
+ return 0;
+
+rtattr_failure:
+ return -1;
+}
+#endif /* CONFIG_NET_CLS_POLICE */
#endif
git://git.onelab.eu / linux-2.6.git / blobdiff