1 /* 2 * netlink/route/cls/ematch.h Extended Matches 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation version 2.1 7 * of the License. 8 * 9 * Copyright (c) 2008-2010 Thomas Graf <tgraf (at) suug.ch> 10 */ 11 12 #ifndef NETLINK_CLS_EMATCH_H_ 13 #define NETLINK_CLS_EMATCH_H_ 14 15 #include <netlink/netlink.h> 16 #include <netlink/msg.h> 17 #include <netlink/route/classifier.h> 18 #include <linux/pkt_cls.h> 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 /* FIXME: Should be moved to the kernel header at some point */ 25 #define RTNL_EMATCH_PROGID 2 26 27 struct rtnl_ematch; 28 struct rtnl_ematch_tree; 29 30 /** 31 * Extended Match Operations 32 */ 33 struct rtnl_ematch_ops 34 { 35 int eo_kind; 36 const char * eo_name; 37 size_t eo_minlen; 38 size_t eo_datalen; 39 40 int (*eo_parse)(struct rtnl_ematch *, void *, size_t); 41 void (*eo_dump)(struct rtnl_ematch *, 42 struct nl_dump_params *); 43 int (*eo_fill)(struct rtnl_ematch *, struct nl_msg *); 44 void (*eo_free)(struct rtnl_ematch *); 45 struct nl_list_head eo_list; 46 }; 47 48 extern int rtnl_ematch_register(struct rtnl_ematch_ops *); 49 extern struct rtnl_ematch_ops * rtnl_ematch_lookup_ops(int); 50 extern struct rtnl_ematch_ops * rtnl_ematch_lookup_ops_by_name(const char *); 51 52 extern struct rtnl_ematch * rtnl_ematch_alloc(void); 53 extern int rtnl_ematch_add_child(struct rtnl_ematch *, 54 struct rtnl_ematch *); 55 extern void rtnl_ematch_unlink(struct rtnl_ematch *); 56 extern void rtnl_ematch_free(struct rtnl_ematch *); 57 58 extern void * rtnl_ematch_data(struct rtnl_ematch *); 59 extern void rtnl_ematch_set_flags(struct rtnl_ematch *, 60 uint16_t); 61 extern void rtnl_ematch_unset_flags(struct rtnl_ematch *, 62 uint16_t); 63 extern uint16_t rtnl_ematch_get_flags(struct rtnl_ematch *); 64 extern int rtnl_ematch_set_ops(struct rtnl_ematch *, 65 struct rtnl_ematch_ops *); 66 extern int rtnl_ematch_set_kind(struct rtnl_ematch *, 67 uint16_t); 68 extern int rtnl_ematch_set_name(struct rtnl_ematch *, 69 const char *); 70 71 extern struct rtnl_ematch_tree *rtnl_ematch_tree_alloc(uint16_t); 72 extern void rtnl_ematch_tree_free(struct rtnl_ematch_tree *); 73 extern void rtnl_ematch_tree_add(struct rtnl_ematch_tree *, 74 struct rtnl_ematch *); 75 76 extern int rtnl_ematch_parse_attr(struct nlattr *, 77 struct rtnl_ematch_tree **); 78 extern int rtnl_ematch_fill_attr(struct nl_msg *, int, 79 struct rtnl_ematch_tree *); 80 extern void rtnl_ematch_tree_dump(struct rtnl_ematch_tree *, 81 struct nl_dump_params *); 82 83 84 extern int rtnl_ematch_parse_expr(const char *, char **, 85 struct rtnl_ematch_tree **); 86 87 extern char * rtnl_ematch_offset2txt(uint8_t, uint16_t, 88 char *, size_t); 89 extern char * rtnl_ematch_opnd2txt(uint8_t, char *, size_t); 90 91 #ifdef __cplusplus 92 } 93 #endif 94 95 #endif 96
