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/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
*/
/**
* @ingroup route
* @defgroup route_utils Utilities
* @brief Routing Utility Functions
*
*
* @par 1) Translating Routing Table Names
* @code
* // libnl is only aware of the de facto standard routing table names.
* // Additional name <-> identifier associations have to be read in via
* // a configuration file, f.e. /etc/iproute2/rt_tables
* err = rtnl_route_read_table_names("/etc/iproute2/rt_tables");
*
* // Translating a table name to its idenfier
* int table = rtnl_route_str2table("main");
*
* // ... and the other way around.
* char buf[32];
* printf("Name: %s\n",
* rtnl_route_table2str(table, buf, sizeof(buf)));
* @endcode
*
*
*
*
* @{
*/
#include "nl-default.h"
#include <netlink/netlink.h>
#include <netlink/utils.h>
#include <netlink/route/rtnl.h>
#include <netlink/route/route.h>
#include "nl-priv-dynamic-core/nl-core.h"
/**
* @name Routing Table Identifier Translations
* @{
*/
static NL_LIST_HEAD(table_names);
static int add_routing_table_name(long id, const char *name)
{
return __trans_list_add(id, name, &table_names);
}
static void _nl_init init_routing_table_names(void)
{
add_routing_table_name(RT_TABLE_UNSPEC, "unspec");
add_routing_table_name(RT_TABLE_COMPAT, "compat");
add_routing_table_name(RT_TABLE_DEFAULT, "default");
add_routing_table_name(RT_TABLE_MAIN, "main");
add_routing_table_name(RT_TABLE_LOCAL, "local");
}
static void _nl_exit release_routing_table_names(void)
{
__trans_list_clear(&table_names);
}
int rtnl_route_read_table_names(const char *path)
{
__trans_list_clear(&table_names);
return __nl_read_num_str_file(path, &add_routing_table_name);
}
char *rtnl_route_table2str(int table, char *buf, size_t size)
{
return __list_type2str(table, buf, size, &table_names);
}
int rtnl_route_str2table(const char *name)
{
return __list_str2type(name, &table_names);
}
/** @} */
/**
* @name Routing Protocol Translations
* @{
*/
static NL_LIST_HEAD(proto_names);
static int add_proto_name(long id, const char *name)
{
return __trans_list_add(id, name, &proto_names);
}
static void _nl_init init_proto_names(void)
{
add_proto_name(RTPROT_UNSPEC, "unspec");
add_proto_name(RTPROT_REDIRECT, "redirect");
add_proto_name(RTPROT_KERNEL, "kernel");
add_proto_name(RTPROT_BOOT, "boot");
add_proto_name(RTPROT_STATIC, "static");
}
static void _nl_exit release_proto_names(void)
{
__trans_list_clear(&proto_names);
}
int rtnl_route_read_protocol_names(const char *path)
{
__trans_list_clear(&proto_names);
return __nl_read_num_str_file(path, &add_proto_name);
}
char *rtnl_route_proto2str(int proto, char *buf, size_t size)
{
return __list_type2str(proto, buf, size, &proto_names);
}
int rtnl_route_str2proto(const char *name)
{
return __list_str2type(name, &proto_names);
}
/** @} */
/**
* @name Routing Metrices Translations
* @{
*/
static const struct trans_tbl route_metrices[] = {
__ADD(RTAX_UNSPEC, unspec),
__ADD(RTAX_LOCK, lock),
__ADD(RTAX_MTU, mtu),
__ADD(RTAX_WINDOW, window),
__ADD(RTAX_RTT, rtt),
__ADD(RTAX_RTTVAR, rttvar),
__ADD(RTAX_SSTHRESH, ssthresh),
__ADD(RTAX_CWND, cwnd),
__ADD(RTAX_ADVMSS, advmss),
__ADD(RTAX_REORDERING, reordering),
__ADD(RTAX_HOPLIMIT, hoplimit),
__ADD(RTAX_INITCWND, initcwnd),
__ADD(RTAX_FEATURES, features),
};
char *rtnl_route_metric2str(int metric, char *buf, size_t size)
{
return __type2str(metric, buf, size, route_metrices,
ARRAY_SIZE(route_metrices));
}
int rtnl_route_str2metric(const char *name)
{
return __str2type(name, route_metrices, ARRAY_SIZE(route_metrices));
}
/** @} */
/** @} */
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