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1 /*
2  * netlink/route/route.h	Routes
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) 2003-2008 Thomas Graf <tgraf@suug.ch>
10  */
11 
12 #ifndef NETLINK_ROUTE_H_
13 #define NETLINK_ROUTE_H_
14 
15 #include <netlink/netlink.h>
16 #include <netlink/cache.h>
17 #include <netlink/addr.h>
18 #include <netlink/data.h>
19 #include <netlink/route/nexthop.h>
20 #include <netlink/route/rtnl.h>
21 #include <linux/in_route.h>
22 
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26 
27 /* flags */
28 #define ROUTE_CACHE_CONTENT	1
29 
30 struct rtnl_route;
31 
32 struct rtnl_rtcacheinfo
33 {
34 	uint32_t	rtci_clntref;
35 	uint32_t	rtci_last_use;
36 	uint32_t	rtci_expires;
37 	int32_t		rtci_error;
38 	uint32_t	rtci_used;
39 	uint32_t	rtci_id;
40 	uint32_t	rtci_ts;
41 	uint32_t	rtci_tsage;
42 };
43 
44 extern struct nl_object_ops route_obj_ops;
45 
46 extern struct rtnl_route *	rtnl_route_alloc(void);
47 extern void	rtnl_route_put(struct rtnl_route *);
48 extern int	rtnl_route_alloc_cache(struct nl_sock *, int, int,
49 				       struct nl_cache **);
50 
51 extern void	rtnl_route_get(struct rtnl_route *);
52 extern void	rtnl_route_put(struct rtnl_route *);
53 
54 extern int	rtnl_route_parse(struct nlmsghdr *, struct rtnl_route **);
55 extern int	rtnl_route_build_msg(struct nl_msg *, struct rtnl_route *);
56 
57 extern int	rtnl_route_build_add_request(struct rtnl_route *, int,
58 					     struct nl_msg **);
59 extern int	rtnl_route_add(struct nl_sock *, struct rtnl_route *, int);
60 extern int	rtnl_route_build_del_request(struct rtnl_route *, int,
61 					     struct nl_msg **);
62 extern int	rtnl_route_delete(struct nl_sock *, struct rtnl_route *, int);
63 
64 extern void	rtnl_route_set_table(struct rtnl_route *, uint32_t);
65 extern uint32_t	rtnl_route_get_table(struct rtnl_route *);
66 extern void	rtnl_route_set_scope(struct rtnl_route *, uint8_t);
67 extern uint8_t	rtnl_route_get_scope(struct rtnl_route *);
68 extern void	rtnl_route_set_tos(struct rtnl_route *, uint8_t);
69 extern uint8_t	rtnl_route_get_tos(struct rtnl_route *);
70 extern void	rtnl_route_set_protocol(struct rtnl_route *, uint8_t);
71 extern uint8_t	rtnl_route_get_protocol(struct rtnl_route *);
72 extern void	rtnl_route_set_priority(struct rtnl_route *, uint32_t);
73 extern uint32_t	rtnl_route_get_priority(struct rtnl_route *);
74 extern int	rtnl_route_set_family(struct rtnl_route *, uint8_t);
75 extern uint8_t	rtnl_route_get_family(struct rtnl_route *);
76 extern int	rtnl_route_set_type(struct rtnl_route *, uint8_t);
77 extern uint8_t	rtnl_route_get_type(struct rtnl_route *);
78 extern void	rtnl_route_set_flags(struct rtnl_route *, uint32_t);
79 extern void	rtnl_route_unset_flags(struct rtnl_route *, uint32_t);
80 extern uint32_t	rtnl_route_get_flags(struct rtnl_route *);
81 extern int	rtnl_route_set_metric(struct rtnl_route *, int, unsigned int);
82 extern int	rtnl_route_unset_metric(struct rtnl_route *, int);
83 extern int	rtnl_route_get_metric(struct rtnl_route *, int, uint32_t *);
84 extern int	rtnl_route_set_dst(struct rtnl_route *, struct nl_addr *);
85 extern struct nl_addr *rtnl_route_get_dst(struct rtnl_route *);
86 extern int	rtnl_route_set_src(struct rtnl_route *, struct nl_addr *);
87 extern struct nl_addr *rtnl_route_get_src(struct rtnl_route *);
88 extern int	rtnl_route_set_pref_src(struct rtnl_route *, struct nl_addr *);
89 extern struct nl_addr *rtnl_route_get_pref_src(struct rtnl_route *);
90 extern void	rtnl_route_set_iif(struct rtnl_route *, int);
91 extern int	rtnl_route_get_iif(struct rtnl_route *);
92 extern int	rtnl_route_get_src_len(struct rtnl_route *);
93 
94 extern void	rtnl_route_add_nexthop(struct rtnl_route *,
95 				       struct rtnl_nexthop *);
96 extern void	rtnl_route_remove_nexthop(struct rtnl_route *,
97 					  struct rtnl_nexthop *);
98 extern struct nl_list_head *rtnl_route_get_nexthops(struct rtnl_route *);
99 extern int	rtnl_route_get_nnexthops(struct rtnl_route *);
100 
101 extern void	rtnl_route_foreach_nexthop(struct rtnl_route *r,
102                                  void (*cb)(struct rtnl_nexthop *, void *),
103                                  void *arg);
104 
105 extern struct rtnl_nexthop * rtnl_route_nexthop_n(struct rtnl_route *r, int n);
106 
107 extern int	rtnl_route_guess_scope(struct rtnl_route *);
108 
109 extern char *	rtnl_route_table2str(int, char *, size_t);
110 extern int	rtnl_route_str2table(const char *);
111 extern int	rtnl_route_read_table_names(const char *);
112 
113 extern char *	rtnl_route_proto2str(int, char *, size_t);
114 extern int	rtnl_route_str2proto(const char *);
115 extern int	rtnl_route_read_protocol_names(const char *);
116 
117 extern char *	rtnl_route_metric2str(int, char *, size_t);
118 extern int	rtnl_route_str2metric(const char *);
119 
120 #ifdef __cplusplus
121 }
122 #endif
123 
124 #endif
125