2 * lib/route/rtnl.c Routing Netlink
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
9 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
13 * @defgroup rtnl Routing Family
17 #include <netlink-local.h>
18 #include <netlink/netlink.h>
19 #include <netlink/utils.h>
20 #include <netlink/route/rtnl.h>
28 * Send routing netlink request message
29 * @arg sk Netlink socket.
30 * @arg type Netlink message type.
31 * @arg family Address family.
32 * @arg flags Additional netlink message flags.
34 * Fills out a routing netlink request message and sends it out
35 * using nl_send_simple().
37 * @return 0 on success or a negative error code.
39 int nl_rtgen_request(struct nl_sock *sk, int type, int family, int flags)
41 struct rtgenmsg gmsg = {
42 .rtgen_family = family,
45 return nl_send_simple(sk, type, flags, &gmsg, sizeof(gmsg));
51 * @name Routing Type Translations
55 static struct trans_tbl rtntypes[] = {
56 __ADD(RTN_UNSPEC,unspec)
57 __ADD(RTN_UNICAST,unicast)
58 __ADD(RTN_LOCAL,local)
59 __ADD(RTN_BROADCAST,broadcast)
60 __ADD(RTN_ANYCAST,anycast)
61 __ADD(RTN_MULTICAST,multicast)
62 __ADD(RTN_BLACKHOLE,blackhole)
63 __ADD(RTN_UNREACHABLE,unreachable)
64 __ADD(RTN_PROHIBIT,prohibit)
65 __ADD(RTN_THROW,throw)
67 __ADD(RTN_XRESOLVE,xresolve)
70 char *nl_rtntype2str(int type, char *buf, size_t size)
72 return __type2str(type, buf, size, rtntypes, ARRAY_SIZE(rtntypes));
75 int nl_str2rtntype(const char *name)
77 return __str2type(name, rtntypes, ARRAY_SIZE(rtntypes));
83 * @name Scope Translations
87 static struct trans_tbl scopes[] = {
95 char *rtnl_scope2str(int scope, char *buf, size_t size)
97 return __type2str(scope, buf, size, scopes, ARRAY_SIZE(scopes));
100 int rtnl_str2scope(const char *name)
102 return __str2type(name, scopes, ARRAY_SIZE(scopes));
108 * @name Realms Translations
112 char * rtnl_realms2str(uint32_t realms, char *buf, size_t len)
114 int from = RTNL_REALM_FROM(realms);
115 int to = RTNL_REALM_TO(realms);
117 snprintf(buf, len, "%d/%d", from, to);