1 #ifndef __NET_PKT_CLS_H
2 #define __NET_PKT_CLS_H
4 #include <linux/pkt_cls.h>
5 #include <net/sch_generic.h>
6 #include <net/act_api.h>
8 /* Basic packet classifier frontend definitions. */
15 int (*fn)(struct tcf_proto *, unsigned long node, struct tcf_walker *);
18 extern int register_tcf_proto_ops(struct tcf_proto_ops *ops);
19 extern int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
21 static inline unsigned long
22 __cls_set_class(unsigned long *clp, unsigned long cl)
31 static inline unsigned long
32 cls_set_class(struct tcf_proto *tp, unsigned long *clp,
38 old_cl = __cls_set_class(clp, cl);
45 tcf_bind_filter(struct tcf_proto *tp, struct tcf_result *r, unsigned long base)
49 cl = tp->q->ops->cl_ops->bind_tcf(tp->q, base, r->classid);
50 cl = cls_set_class(tp, &r->class, cl);
52 tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
56 tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r)
60 if ((cl = __cls_set_class(&r->class, 0)) != 0)
61 tp->q->ops->cl_ops->unbind_tcf(tp->q, cl);
66 #ifdef CONFIG_NET_CLS_ACT
67 struct tc_action *action;
68 #elif defined CONFIG_NET_CLS_POLICE
69 struct tcf_police *police;
73 /* Map to export classifier specific extension TLV types to the
74 * generic extensions API. Unsupported extensions must be set to 0.
83 * tcf_exts_is_predicative - check if a predicative extension is present
84 * @exts: tc filter extensions handle
86 * Returns 1 if a predicative extension is present, i.e. an extension which
87 * might cause further actions and thus overrule the regular tcf_result.
90 tcf_exts_is_predicative(struct tcf_exts *exts)
92 #ifdef CONFIG_NET_CLS_ACT
93 return !!exts->action;
94 #elif defined CONFIG_NET_CLS_POLICE
95 return !!exts->police;
102 * tcf_exts_is_available - check if at least one extension is present
103 * @exts: tc filter extensions handle
105 * Returns 1 if at least one extension is present.
108 tcf_exts_is_available(struct tcf_exts *exts)
110 /* All non-predicative extensions must be added here. */
111 return tcf_exts_is_predicative(exts);
115 * tcf_exts_exec - execute tc filter extensions
116 * @skb: socket buffer
117 * @exts: tc filter extensions handle
118 * @res: desired result
120 * Executes all configured extensions. Returns 0 on a normal execution,
121 * a negative number if the filter must be considered unmatched or
122 * a positive action code (TC_ACT_*) which must be returned to the
126 tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
127 struct tcf_result *res)
129 #ifdef CONFIG_NET_CLS_ACT
131 return tcf_action_exec(skb, exts->action, res);
132 #elif defined CONFIG_NET_CLS_POLICE
134 return tcf_police(skb, exts->police);
140 extern int tcf_exts_validate(struct tcf_proto *tp, struct rtattr **tb,
141 struct rtattr *rate_tlv, struct tcf_exts *exts,
142 struct tcf_ext_map *map);
143 extern void tcf_exts_destroy(struct tcf_proto *tp, struct tcf_exts *exts);
144 extern void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst,
145 struct tcf_exts *src);
146 extern int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts,
147 struct tcf_ext_map *map);
148 extern int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts,
149 struct tcf_ext_map *map);
151 #ifdef CONFIG_NET_CLS_IND
153 tcf_change_indev(struct tcf_proto *tp, char *indev, struct rtattr *indev_tlv)
155 if (rtattr_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ)
161 tcf_match_indev(struct sk_buff *skb, char *indev)
164 if (NULL == skb->input_dev)
166 else if (0 != strcmp(indev, skb->input_dev->name))
172 #endif /* CONFIG_NET_CLS_IND */