libnl  3.2.24-rc1
rtnl.h
1 /*
2  * netlink/route/rtnl.h Routing Netlink
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_RTNL_H_
13 #define NETLINK_RTNL_H_
14 
15 #include <netlink/netlink.h>
16 
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20 
21 /**
22  * @name Realms
23  * @{
24  */
25 
26 /**
27  * Mask specying the size of each realm part
28  * @ingroup rtnl
29  */
30 #define RTNL_REALM_MASK (0xFFFF)
31 
32 /**
33  * Extract FROM realm from a realms field
34  */
35 #define RTNL_REALM_FROM(realm) ((realm) >> 16)
36 
37 /**
38  * Extract TO realm from a realms field
39  */
40 #define RTNL_REALM_TO(realm) ((realm) & RTNL_REALM_MASK)
41 
42 /**
43  * Build a realms field
44  */
45 #define RTNL_MAKE_REALM(from, to) \
46  ((RTNL_REALM_TO(from) << 16) & RTNL_REALM_TO(to))
47 
48 /** @} */
49 
50 
51 /* General */
52 extern int nl_rtgen_request(struct nl_sock *, int, int, int);
53 
54 /* Routing Type Translations */
55 extern char * nl_rtntype2str(int, char *, size_t);
56 extern int nl_str2rtntype(const char *);
57 
58 /* Scope Translations */
59 extern char * rtnl_scope2str(int, char *, size_t);
60 extern int rtnl_str2scope(const char *);
61 
62 /* Realms Translations */
63 extern char * rtnl_realms2str(uint32_t, char *, size_t);
64 
65 #ifdef __cplusplus
66 }
67 #endif
68 
69 #endif