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/*
* lib/route/rtnl.c 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) 2003-2008 Thomas Graf <tgraf@suug.ch>
*/
/**
* @ingroup nlfam
* @defgroup rtnl Routing Netlink
* @{
*/
#include <netlink-local.h>
#include <netlink/netlink.h>
#include <netlink/utils.h>
#include <netlink/route/rtnl.h>
/**
* @name Sending
* @{
*/
/**
* Send routing netlink request message
* @arg sk Netlink socket.
* @arg type Netlink message type.
* @arg family Address family.
* @arg flags Additional netlink message flags.
*
* Fills out a routing netlink request message and sends it out
* using nl_send_simple().
*
* @return 0 on success or a negative error code.
*/
int nl_rtgen_request(struct nl_sock *sk, int type, int family, int flags)
{
struct rtgenmsg gmsg = {
.rtgen_family = family,
};
return nl_send_simple(sk, type, flags, &gmsg, sizeof(gmsg));
}
/** @} */
/**
* @name Routing Type Translations
* @{
*/
static struct trans_tbl rtntypes[] = {
__ADD(RTN_UNSPEC,unspec)
__ADD(RTN_UNICAST,unicast)
__ADD(RTN_LOCAL,local)
__ADD(RTN_BROADCAST,broadcast)
__ADD(RTN_ANYCAST,anycast)
__ADD(RTN_MULTICAST,multicast)
__ADD(RTN_BLACKHOLE,blackhole)
__ADD(RTN_UNREACHABLE,unreachable)
__ADD(RTN_PROHIBIT,prohibit)
__ADD(RTN_THROW,throw)
__ADD(RTN_NAT,nat)
__ADD(RTN_XRESOLVE,xresolve)
};
char *nl_rtntype2str(int type, char *buf, size_t size)
{
return __type2str(type, buf, size, rtntypes, ARRAY_SIZE(rtntypes));
}
int nl_str2rtntype(const char *name)
{
return __str2type(name, rtntypes, ARRAY_SIZE(rtntypes));
}
/** @} */
/**
* @name Scope Translations
* @{
*/
static struct trans_tbl scopes[] = {
__ADD(255,nowhere)
__ADD(254,host)
__ADD(253,link)
__ADD(200,site)
__ADD(0,universe)
};
char *rtnl_scope2str(int scope, char *buf, size_t size)
{
return __type2str(scope, buf, size, scopes, ARRAY_SIZE(scopes));
}
int rtnl_str2scope(const char *name)
{
return __str2type(name, scopes, ARRAY_SIZE(scopes));
}
/** @} */
/**
* @name Realms Translations
* @{
*/
char * rtnl_realms2str(uint32_t realms, char *buf, size_t len)
{
int from = RTNL_REALM_FROM(realms);
int to = RTNL_REALM_TO(realms);
snprintf(buf, len, "%d/%d", from, to);
return buf;
}
/** @} */
/** @} */
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