rtnl.h

/*
 * netlink/route/rtnl.h         Routing Netlink
 *
 *      This library is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU Lesser General Public
 *      License as published by the Free Software Foundation version 2.1
 *      of the License.
 *
 * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
 */
 
#ifndef NETLINK_RTNL_H_
#define NETLINK_RTNL_H_
 
#include <netlink/netlink.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/**
 * @name Realms
 * @{
 */
 
typedef uint32_t        realm_t;
 
/**
 * Mask specying the size of each realm part
 * @ingroup rtnl
 */
#define RTNL_REALM_MASK (0xFFFF)
 
/**
 * Extract FROM realm from a realms field
 */
#define RTNL_REALM_FROM(realm) ((realm) >> 16)
 
/**
 * Extract TO realm from a realms field
 */
#define RTNL_REALM_TO(realm) ((realm) & RTNL_REALM_MASK)
 
/**
 * Build a realms field
 */
#define RTNL_MAKE_REALM(from, to) \
        ((RTNL_REALM_TO(from) << 16) & RTNL_REALM_TO(to))
 
/** @} */
 
 
/* General */
extern int              nl_rtgen_request(struct nl_handle *, int, int, int);
 
/* Routing Type Translations */
extern char *           nl_rtntype2str(int, char *, size_t);
extern int              nl_str2rtntype(const char *);
 
/* Scope Translations */
extern char *           rtnl_scope2str(int, char *, size_t);
extern int              rtnl_str2scope(const char *);
 
/* Realms Translations */
extern char *           rtnl_realms2str(uint32_t, char *, size_t);
 
#ifdef __cplusplus
}
#endif
 
#endif