125 lines
2.4 KiB
C
125 lines
2.4 KiB
C
/*
|
|
* 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) 2003-2006 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 handle Netlink handle.
|
|
* @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_handle *handle, int type, int family, int flags)
|
|
{
|
|
struct rtgenmsg gmsg = {
|
|
.rtgen_family = family,
|
|
};
|
|
|
|
return nl_send_simple(handle, 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;
|
|
}
|
|
|
|
/** @} */
|
|
|
|
/** @} */
|