[mirror_iproute2.git] / include / linux / rtnetlink.h

#ifndef __LINUX_RTNETLINK_H
#define __LINUX_RTNETLINK_H

#include <linux/netlink.h>
#include <linux/if_link.h>
#include <linux/if_addr.h>
#include <linux/neighbour.h>

/****
 *		Routing/neighbour discovery messages.
 ****/

/* Types of messages */

enum {
	RTM_BASE	= 16,
#define RTM_BASE	RTM_BASE

	RTM_NEWLINK	= 16,
#define RTM_NEWLINK	RTM_NEWLINK
	RTM_DELLINK,
#define RTM_DELLINK	RTM_DELLINK
	RTM_GETLINK,
#define RTM_GETLINK	RTM_GETLINK
	RTM_SETLINK,
#define RTM_SETLINK	RTM_SETLINK

	RTM_NEWADDR	= 20,
#define RTM_NEWADDR	RTM_NEWADDR
	RTM_DELADDR,
#define RTM_DELADDR	RTM_DELADDR
	RTM_GETADDR,
#define RTM_GETADDR	RTM_GETADDR

	RTM_NEWROUTE	= 24,
#define RTM_NEWROUTE	RTM_NEWROUTE
	RTM_DELROUTE,
#define RTM_DELROUTE	RTM_DELROUTE
	RTM_GETROUTE,
#define RTM_GETROUTE	RTM_GETROUTE

	RTM_NEWNEIGH	= 28,
#define RTM_NEWNEIGH	RTM_NEWNEIGH
	RTM_DELNEIGH,
#define RTM_DELNEIGH	RTM_DELNEIGH
	RTM_GETNEIGH,
#define RTM_GETNEIGH	RTM_GETNEIGH

	RTM_NEWRULE	= 32,
#define RTM_NEWRULE	RTM_NEWRULE
	RTM_DELRULE,
#define RTM_DELRULE	RTM_DELRULE
	RTM_GETRULE,
#define RTM_GETRULE	RTM_GETRULE

	RTM_NEWQDISC	= 36,
#define RTM_NEWQDISC	RTM_NEWQDISC
	RTM_DELQDISC,
#define RTM_DELQDISC	RTM_DELQDISC
	RTM_GETQDISC,
#define RTM_GETQDISC	RTM_GETQDISC

	RTM_NEWTCLASS	= 40,
#define RTM_NEWTCLASS	RTM_NEWTCLASS
	RTM_DELTCLASS,
#define RTM_DELTCLASS	RTM_DELTCLASS
	RTM_GETTCLASS,
#define RTM_GETTCLASS	RTM_GETTCLASS

	RTM_NEWTFILTER	= 44,
#define RTM_NEWTFILTER	RTM_NEWTFILTER
	RTM_DELTFILTER,
#define RTM_DELTFILTER	RTM_DELTFILTER
	RTM_GETTFILTER,
#define RTM_GETTFILTER	RTM_GETTFILTER

	RTM_NEWACTION	= 48,
#define RTM_NEWACTION   RTM_NEWACTION
	RTM_DELACTION,
#define RTM_DELACTION   RTM_DELACTION
	RTM_GETACTION,
#define RTM_GETACTION   RTM_GETACTION

	RTM_NEWPREFIX	= 52,
#define RTM_NEWPREFIX	RTM_NEWPREFIX

	RTM_GETMULTICAST = 58,
#define RTM_GETMULTICAST RTM_GETMULTICAST

	RTM_GETANYCAST	= 62,
#define RTM_GETANYCAST	RTM_GETANYCAST

	RTM_NEWNEIGHTBL	= 64,
#define RTM_NEWNEIGHTBL	RTM_NEWNEIGHTBL
	RTM_GETNEIGHTBL	= 66,
#define RTM_GETNEIGHTBL	RTM_GETNEIGHTBL
	RTM_SETNEIGHTBL,
#define RTM_SETNEIGHTBL	RTM_SETNEIGHTBL

	RTM_NEWNDUSEROPT = 68,
#define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT

	RTM_NEWADDRLABEL = 72,
#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
	RTM_DELADDRLABEL,
#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
	RTM_GETADDRLABEL,
#define RTM_GETADDRLABEL RTM_GETADDRLABEL

	__RTM_MAX,
#define RTM_MAX		(((__RTM_MAX + 3) & ~3) - 1)
};

#define RTM_NR_MSGTYPES	(RTM_MAX + 1 - RTM_BASE)
#define RTM_NR_FAMILIES	(RTM_NR_MSGTYPES >> 2)
#define RTM_FAM(cmd)	(((cmd) - RTM_BASE) >> 2)

/* 
   Generic structure for encapsulation of optional route information.
   It is reminiscent of sockaddr, but with sa_family replaced
   with attribute type.
 */

struct rtattr
{
	unsigned short	rta_len;
	unsigned short	rta_type;
};

/* Macros to handle rtattributes */

#define RTA_ALIGNTO	4
#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
			 (rta)->rta_len >= sizeof(struct rtattr) && \
			 (rta)->rta_len <= (len))
#define RTA_NEXT(rta,attrlen)	((attrlen) -= RTA_ALIGN((rta)->rta_len), \
				 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
#define RTA_LENGTH(len)	(RTA_ALIGN(sizeof(struct rtattr)) + (len))
#define RTA_SPACE(len)	RTA_ALIGN(RTA_LENGTH(len))
#define RTA_DATA(rta)   ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
#define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))


/******************************************************************************
 *		Definitions used in routing table administration.
 ****/

struct rtmsg
{
	unsigned char		rtm_family;
	unsigned char		rtm_dst_len;
	unsigned char		rtm_src_len;
	unsigned char		rtm_tos;

	unsigned char		rtm_table;	/* Routing table id */
	unsigned char		rtm_protocol;	/* Routing protocol; see below	*/
	unsigned char		rtm_scope;	/* See below */	
	unsigned char		rtm_type;	/* See below	*/

	unsigned		rtm_flags;
};

/* rtm_type */

enum
{
	RTN_UNSPEC,
	RTN_UNICAST,		/* Gateway or direct route	*/
	RTN_LOCAL,		/* Accept locally		*/
	RTN_BROADCAST,		/* Accept locally as broadcast,
				   send as broadcast */
	RTN_ANYCAST,		/* Accept locally as broadcast,
				   but send as unicast */
	RTN_MULTICAST,		/* Multicast route		*/
	RTN_BLACKHOLE,		/* Drop				*/
	RTN_UNREACHABLE,	/* Destination is unreachable   */
	RTN_PROHIBIT,		/* Administratively prohibited	*/
	RTN_THROW,		/* Not in this table		*/
	RTN_NAT,		/* Translate this address	*/
	RTN_XRESOLVE,		/* Use external resolver	*/
	__RTN_MAX
};

#define RTN_MAX (__RTN_MAX - 1)


/* rtm_protocol */

#define RTPROT_UNSPEC	0
#define RTPROT_REDIRECT	1	/* Route installed by ICMP redirects;
				   not used by current IPv4 */
#define RTPROT_KERNEL	2	/* Route installed by kernel		*/
#define RTPROT_BOOT	3	/* Route installed during boot		*/
#define RTPROT_STATIC	4	/* Route installed by administrator	*/

/* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
   they are just passed from user and back as is.
   It will be used by hypothetical multiple routing daemons.
   Note that protocol values should be standardized in order to
   avoid conflicts.
 */

#define RTPROT_GATED	8	/* Apparently, GateD */
#define RTPROT_RA	9	/* RDISC/ND router advertisements */
#define RTPROT_MRT	10	/* Merit MRT */
#define RTPROT_ZEBRA	11	/* Zebra */
#define RTPROT_BIRD	12	/* BIRD */
#define RTPROT_DNROUTED	13	/* DECnet routing daemon */
#define RTPROT_XORP	14	/* XORP */
#define RTPROT_NTK	15	/* Netsukuku */

/* rtm_scope

   Really it is not scope, but sort of distance to the destination.
   NOWHERE are reserved for not existing destinations, HOST is our
   local addresses, LINK are destinations, located on directly attached
   link and UNIVERSE is everywhere in the Universe.

   Intermediate values are also possible f.e. interior routes
   could be assigned a value between UNIVERSE and LINK.
*/

enum rt_scope_t
{
	RT_SCOPE_UNIVERSE=0,
/* User defined values  */
	RT_SCOPE_SITE=200,
	RT_SCOPE_LINK=253,
	RT_SCOPE_HOST=254,
	RT_SCOPE_NOWHERE=255
};

/* rtm_flags */

#define RTM_F_NOTIFY		0x100	/* Notify user of route change	*/
#define RTM_F_CLONED		0x200	/* This route is cloned		*/
#define RTM_F_EQUALIZE		0x400	/* Multipath equalizer: NI	*/
#define RTM_F_PREFIX		0x800	/* Prefix addresses		*/

/* Reserved table identifiers */

enum rt_class_t
{
	RT_TABLE_UNSPEC=0,
/* User defined values */
	RT_TABLE_COMPAT=252,
	RT_TABLE_DEFAULT=253,
	RT_TABLE_MAIN=254,
	RT_TABLE_LOCAL=255,
	RT_TABLE_MAX=0xFFFFFFFF
};


/* Routing message attributes */

enum rtattr_type_t
{
	RTA_UNSPEC,
	RTA_DST,
	RTA_SRC,
	RTA_IIF,
	RTA_OIF,
	RTA_GATEWAY,
	RTA_PRIORITY,
	RTA_PREFSRC,
	RTA_METRICS,
	RTA_MULTIPATH,
	RTA_PROTOINFO, /* no longer used */
	RTA_FLOW,
	RTA_CACHEINFO,
	RTA_SESSION, /* no longer used */
	RTA_MP_ALGO, /* no longer used */
	RTA_TABLE,
	__RTA_MAX
};

#define RTA_MAX (__RTA_MAX - 1)

#define RTM_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))

/* RTM_MULTIPATH --- array of struct rtnexthop.
 *
 * "struct rtnexthop" describes all necessary nexthop information,
 * i.e. parameters of path to a destination via this nexthop.
 *
 * At the moment it is impossible to set different prefsrc, mtu, window
 * and rtt for different paths from multipath.
 */

struct rtnexthop
{
	unsigned short		rtnh_len;
	unsigned char		rtnh_flags;
	unsigned char		rtnh_hops;
	int			rtnh_ifindex;
};

/* rtnh_flags */

#define RTNH_F_DEAD		1	/* Nexthop is dead (used by multipath)	*/
#define RTNH_F_PERVASIVE	2	/* Do recursive gateway lookup	*/
#define RTNH_F_ONLINK		4	/* Gateway is forced on link	*/

/* Macros to handle hexthops */

#define RTNH_ALIGNTO	4
#define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
#define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
			   ((int)(rtnh)->rtnh_len) <= (len))
#define RTNH_NEXT(rtnh)	((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
#define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
#define RTNH_SPACE(len)	RTNH_ALIGN(RTNH_LENGTH(len))
#define RTNH_DATA(rtnh)   ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))

/* RTM_CACHEINFO */

struct rta_cacheinfo
{
	__u32	rta_clntref;
	__u32	rta_lastuse;
	__s32	rta_expires;
	__u32	rta_error;
	__u32	rta_used;

#define RTNETLINK_HAVE_PEERINFO 1
	__u32	rta_id;
	__u32	rta_ts;
	__u32	rta_tsage;
};

/* RTM_METRICS --- array of struct rtattr with types of RTAX_* */

enum
{
	RTAX_UNSPEC,
#define RTAX_UNSPEC RTAX_UNSPEC
	RTAX_LOCK,
#define RTAX_LOCK RTAX_LOCK
	RTAX_MTU,
#define RTAX_MTU RTAX_MTU
	RTAX_WINDOW,
#define RTAX_WINDOW RTAX_WINDOW
	RTAX_RTT,
#define RTAX_RTT RTAX_RTT
	RTAX_RTTVAR,
#define RTAX_RTTVAR RTAX_RTTVAR
	RTAX_SSTHRESH,
#define RTAX_SSTHRESH RTAX_SSTHRESH
	RTAX_CWND,
#define RTAX_CWND RTAX_CWND
	RTAX_ADVMSS,
#define RTAX_ADVMSS RTAX_ADVMSS
	RTAX_REORDERING,
#define RTAX_REORDERING RTAX_REORDERING
	RTAX_HOPLIMIT,
#define RTAX_HOPLIMIT RTAX_HOPLIMIT
	RTAX_INITCWND,
#define RTAX_INITCWND RTAX_INITCWND
	RTAX_FEATURES,
#define RTAX_FEATURES RTAX_FEATURES
	RTAX_RTO_MIN,
#define RTAX_RTO_MIN RTAX_RTO_MIN
	__RTAX_MAX
};

#define RTAX_MAX (__RTAX_MAX - 1)

#define RTAX_FEATURE_ECN	0x00000001
#define RTAX_FEATURE_SACK	0x00000002
#define RTAX_FEATURE_TIMESTAMP	0x00000004
#define RTAX_FEATURE_ALLFRAG	0x00000008

struct rta_session
{
	__u8	proto;
	__u8	pad1;
	__u16	pad2;

	union {
		struct {
			__u16	sport;
			__u16	dport;
		} ports;

		struct {
			__u8	type;
			__u8	code;
			__u16	ident;
		} icmpt;

		__u32		spi;
	} u;
};

/****
 *		General form of address family dependent message.
 ****/

struct rtgenmsg
{
	unsigned char		rtgen_family;
};

/*****************************************************************
 *		Link layer specific messages.
 ****/

/* struct ifinfomsg
 * passes link level specific information, not dependent
 * on network protocol.
 */

struct ifinfomsg
{
	unsigned char	ifi_family;
	unsigned char	__ifi_pad;
	unsigned short	ifi_type;		/* ARPHRD_* */
	int		ifi_index;		/* Link index	*/
	unsigned	ifi_flags;		/* IFF_* flags	*/
	unsigned	ifi_change;		/* IFF_* change mask */
};

/********************************************************************
 *		prefix information 
 ****/

struct prefixmsg
{
	unsigned char	prefix_family;
	unsigned char	prefix_pad1;
	unsigned short	prefix_pad2;
	int		prefix_ifindex;
	unsigned char	prefix_type;
	unsigned char	prefix_len;
	unsigned char	prefix_flags;
	unsigned char	prefix_pad3;
};

enum 
{
	PREFIX_UNSPEC,
	PREFIX_ADDRESS,
	PREFIX_CACHEINFO,
	__PREFIX_MAX
};

#define PREFIX_MAX	(__PREFIX_MAX - 1)

struct prefix_cacheinfo
{
	__u32	preferred_time;
	__u32	valid_time;
};


/*****************************************************************
 *		Traffic control messages.
 ****/

struct tcmsg
{
	unsigned char	tcm_family;
	unsigned char	tcm__pad1;
	unsigned short	tcm__pad2;
	int		tcm_ifindex;
	__u32		tcm_handle;
	__u32		tcm_parent;
	__u32		tcm_info;
};

enum
{
	TCA_UNSPEC,
	TCA_KIND,
	TCA_OPTIONS,
	TCA_STATS,
	TCA_XSTATS,
	TCA_RATE,
	TCA_FCNT,
	TCA_STATS2,
	__TCA_MAX
};

#define TCA_MAX (__TCA_MAX - 1)

#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))

/********************************************************************
 *		Neighbor Discovery userland options
 ****/

struct nduseroptmsg
{
	unsigned char	nduseropt_family;
	unsigned char	nduseropt_pad1;
	unsigned short	nduseropt_opts_len;	/* Total length of options */
	int		nduseropt_ifindex;
	__u8		nduseropt_icmp_type;
	__u8		nduseropt_icmp_code;
	unsigned short	nduseropt_pad2;
	unsigned int	nduseropt_pad3;
	/* Followed by one or more ND options */
};

enum
{
	NDUSEROPT_UNSPEC,
	NDUSEROPT_SRCADDR,
	__NDUSEROPT_MAX
};

#define NDUSEROPT_MAX	(__NDUSEROPT_MAX - 1)

/* RTnetlink multicast groups - backwards compatibility for userspace */
#define RTMGRP_LINK		1
#define RTMGRP_NOTIFY		2
#define RTMGRP_NEIGH		4
#define RTMGRP_TC		8

#define RTMGRP_IPV4_IFADDR	0x10
#define RTMGRP_IPV4_MROUTE	0x20
#define RTMGRP_IPV4_ROUTE	0x40
#define RTMGRP_IPV4_RULE	0x80

#define RTMGRP_IPV6_IFADDR	0x100
#define RTMGRP_IPV6_MROUTE	0x200
#define RTMGRP_IPV6_ROUTE	0x400
#define RTMGRP_IPV6_IFINFO	0x800

#define RTMGRP_DECnet_IFADDR    0x1000
#define RTMGRP_DECnet_ROUTE     0x4000

#define RTMGRP_IPV6_PREFIX	0x20000

/* RTnetlink multicast groups */
enum rtnetlink_groups {
	RTNLGRP_NONE,
#define RTNLGRP_NONE		RTNLGRP_NONE
	RTNLGRP_LINK,
#define RTNLGRP_LINK		RTNLGRP_LINK
	RTNLGRP_NOTIFY,
#define RTNLGRP_NOTIFY		RTNLGRP_NOTIFY
	RTNLGRP_NEIGH,
#define RTNLGRP_NEIGH		RTNLGRP_NEIGH
	RTNLGRP_TC,
#define RTNLGRP_TC		RTNLGRP_TC
	RTNLGRP_IPV4_IFADDR,
#define RTNLGRP_IPV4_IFADDR	RTNLGRP_IPV4_IFADDR
	RTNLGRP_IPV4_MROUTE,
#define	RTNLGRP_IPV4_MROUTE	RTNLGRP_IPV4_MROUTE
	RTNLGRP_IPV4_ROUTE,
#define RTNLGRP_IPV4_ROUTE	RTNLGRP_IPV4_ROUTE
	RTNLGRP_IPV4_RULE,
#define RTNLGRP_IPV4_RULE	RTNLGRP_IPV4_RULE
	RTNLGRP_IPV6_IFADDR,
#define RTNLGRP_IPV6_IFADDR	RTNLGRP_IPV6_IFADDR
	RTNLGRP_IPV6_MROUTE,
#define RTNLGRP_IPV6_MROUTE	RTNLGRP_IPV6_MROUTE
	RTNLGRP_IPV6_ROUTE,
#define RTNLGRP_IPV6_ROUTE	RTNLGRP_IPV6_ROUTE
	RTNLGRP_IPV6_IFINFO,
#define RTNLGRP_IPV6_IFINFO	RTNLGRP_IPV6_IFINFO
	RTNLGRP_DECnet_IFADDR,
#define RTNLGRP_DECnet_IFADDR	RTNLGRP_DECnet_IFADDR
	RTNLGRP_NOP2,
	RTNLGRP_DECnet_ROUTE,
#define RTNLGRP_DECnet_ROUTE	RTNLGRP_DECnet_ROUTE
	RTNLGRP_DECnet_RULE,
#define RTNLGRP_DECnet_RULE	RTNLGRP_DECnet_RULE
	RTNLGRP_NOP4,
	RTNLGRP_IPV6_PREFIX,
#define RTNLGRP_IPV6_PREFIX	RTNLGRP_IPV6_PREFIX
	RTNLGRP_IPV6_RULE,
#define RTNLGRP_IPV6_RULE	RTNLGRP_IPV6_RULE
	RTNLGRP_ND_USEROPT,
#define RTNLGRP_ND_USEROPT	RTNLGRP_ND_USEROPT
	__RTNLGRP_MAX
};
#define RTNLGRP_MAX	(__RTNLGRP_MAX - 1)

/* TC action piece */
struct tcamsg
{
	unsigned char	tca_family;
	unsigned char	tca__pad1;
	unsigned short	tca__pad2;
};
#define TA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
#define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
#define TCA_ACT_TAB 1 /* attr type must be >=1 */	
#define TCAA_MAX 1

/* End of information exported to user level */


#endif	/* __LINUX_RTNETLINK_H */
Commit	Line	Data
0633baa1 SH	1	#ifndef __LINUX_RTNETLINK_H
	2	#define __LINUX_RTNETLINK_H
	3
	4	#include <linux/netlink.h>
ead2ba70	5	#include <linux/if_link.h>
5a8ba228 SH	6	#include <linux/if_addr.h>
5a8ba228 SH	7	#include <linux/neighbour.h>
0633baa1 SH	8
	9	/****
	10	* Routing/neighbour discovery messages.
	11	****/
	12
	13	/* Types of messages */
	14
091ed219 SH	15	enum {
	16	RTM_BASE = 16,
	17	#define RTM_BASE RTM_BASE
	18
	19	RTM_NEWLINK = 16,
	20	#define RTM_NEWLINK RTM_NEWLINK
	21	RTM_DELLINK,
	22	#define RTM_DELLINK RTM_DELLINK
	23	RTM_GETLINK,
	24	#define RTM_GETLINK RTM_GETLINK
	25	RTM_SETLINK,
	26	#define RTM_SETLINK RTM_SETLINK
	27
	28	RTM_NEWADDR = 20,
	29	#define RTM_NEWADDR RTM_NEWADDR
	30	RTM_DELADDR,
	31	#define RTM_DELADDR RTM_DELADDR
	32	RTM_GETADDR,
	33	#define RTM_GETADDR RTM_GETADDR
	34
	35	RTM_NEWROUTE = 24,
	36	#define RTM_NEWROUTE RTM_NEWROUTE
	37	RTM_DELROUTE,
	38	#define RTM_DELROUTE RTM_DELROUTE
	39	RTM_GETROUTE,
	40	#define RTM_GETROUTE RTM_GETROUTE
	41
	42	RTM_NEWNEIGH = 28,
	43	#define RTM_NEWNEIGH RTM_NEWNEIGH
	44	RTM_DELNEIGH,
	45	#define RTM_DELNEIGH RTM_DELNEIGH
	46	RTM_GETNEIGH,
	47	#define RTM_GETNEIGH RTM_GETNEIGH
	48
	49	RTM_NEWRULE = 32,
	50	#define RTM_NEWRULE RTM_NEWRULE
	51	RTM_DELRULE,
	52	#define RTM_DELRULE RTM_DELRULE
	53	RTM_GETRULE,
	54	#define RTM_GETRULE RTM_GETRULE
	55
	56	RTM_NEWQDISC = 36,
	57	#define RTM_NEWQDISC RTM_NEWQDISC
	58	RTM_DELQDISC,
	59	#define RTM_DELQDISC RTM_DELQDISC
	60	RTM_GETQDISC,
	61	#define RTM_GETQDISC RTM_GETQDISC
	62
	63	RTM_NEWTCLASS = 40,
	64	#define RTM_NEWTCLASS RTM_NEWTCLASS
	65	RTM_DELTCLASS,
	66	#define RTM_DELTCLASS RTM_DELTCLASS
	67	RTM_GETTCLASS,
	68	#define RTM_GETTCLASS RTM_GETTCLASS
	69
	70	RTM_NEWTFILTER = 44,
	71	#define RTM_NEWTFILTER RTM_NEWTFILTER
	72	RTM_DELTFILTER,
	73	#define RTM_DELTFILTER RTM_DELTFILTER
	74	RTM_GETTFILTER,
	75	#define RTM_GETTFILTER RTM_GETTFILTER
	76
	77	RTM_NEWACTION = 48,
	78	#define RTM_NEWACTION RTM_NEWACTION
79	RTM_DELACTION,
80	#define RTM_DELACTION RTM_DELACTION
81	RTM_GETACTION,
82	#define RTM_GETACTION RTM_GETACTION
83
84	RTM_NEWPREFIX = 52,
85	#define RTM_NEWPREFIX RTM_NEWPREFIX
091ed219 SH	86
	87	RTM_GETMULTICAST = 58,
	88	#define RTM_GETMULTICAST RTM_GETMULTICAST
	89
	90	RTM_GETANYCAST = 62,
	91	#define RTM_GETANYCAST RTM_GETANYCAST
	92
ea8fc104 SH	93	RTM_NEWNEIGHTBL = 64,
	94	#define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL
	95	RTM_GETNEIGHTBL = 66,
	96	#define RTM_GETNEIGHTBL RTM_GETNEIGHTBL
	97	RTM_SETNEIGHTBL,
	98	#define RTM_SETNEIGHTBL RTM_SETNEIGHTBL
	99
5472ac6f SH	100	RTM_NEWNDUSEROPT = 68,
	101	#define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT
	102
70e6e38a SH	103	RTM_NEWADDRLABEL = 72,
	104	#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
	105	RTM_DELADDRLABEL,
	106	#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
	107	RTM_GETADDRLABEL,
	108	#define RTM_GETADDRLABEL RTM_GETADDRLABEL
	109
ea8fc104 SH	110	__RTM_MAX,
ea8fc104 SH	111	#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)
091ed219	112	};
0633baa1	113
ea8fc104 SH	114	#define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)
	115	#define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)
	116	#define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2)
	117
0633baa1 SH	118	/*
	119	Generic structure for encapsulation of optional route information.
	120	It is reminiscent of sockaddr, but with sa_family replaced
	121	with attribute type.
	122	*/
	123
	124	struct rtattr
	125	{
	126	unsigned short rta_len;
	127	unsigned short rta_type;
	128	};
	129
	130	/* Macros to handle rtattributes */
	131
	132	#define RTA_ALIGNTO 4
	133	#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
	134	#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
	135	(rta)->rta_len >= sizeof(struct rtattr) && \
	136	(rta)->rta_len <= (len))
	137	#define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
	138	(struct rtattr)(((char)(rta)) + RTA_ALIGN((rta)->rta_len)))
	139	#define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
	140	#define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))
	141	#define RTA_DATA(rta) ((void)(((char)(rta)) + RTA_LENGTH(0)))
	142	#define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
	143
	144
	145
	146
	147	/******************************************************************************
	148	* Definitions used in routing table administration.
	149	****/
	150
	151	struct rtmsg
	152	{
	153	unsigned char rtm_family;
	154	unsigned char rtm_dst_len;
	155	unsigned char rtm_src_len;
	156	unsigned char rtm_tos;
	157
	158	unsigned char rtm_table; /* Routing table id */
	159	unsigned char rtm_protocol; /* Routing protocol; see below */
	160	unsigned char rtm_scope; /* See below */
	161	unsigned char rtm_type; /* See below */
	162
	163	unsigned rtm_flags;
	164	};
	165
	166	/* rtm_type */
	167
	168	enum
	169	{
	170	RTN_UNSPEC,
	171	RTN_UNICAST, /* Gateway or direct route */
	172	RTN_LOCAL, /* Accept locally */
	173	RTN_BROADCAST, /* Accept locally as broadcast,
	174	send as broadcast */
	175	RTN_ANYCAST, /* Accept locally as broadcast,
	176	but send as unicast */
	177	RTN_MULTICAST, /* Multicast route */
	178	RTN_BLACKHOLE, /* Drop */
	179	RTN_UNREACHABLE, /* Destination is unreachable */
	180	RTN_PROHIBIT, /* Administratively prohibited */
	181	RTN_THROW, /* Not in this table */
182	RTN_NAT, /* Translate this address */
183	RTN_XRESOLVE, /* Use external resolver */
184	__RTN_MAX
185	};
186
187	#define RTN_MAX (__RTN_MAX - 1)
188
189
190	/* rtm_protocol */
191
192	#define RTPROT_UNSPEC 0
193	#define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects;
194	not used by current IPv4 */
195	#define RTPROT_KERNEL 2 /* Route installed by kernel */
196	#define RTPROT_BOOT 3 /* Route installed during boot */
197	#define RTPROT_STATIC 4 /* Route installed by administrator */
198
199	/* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
200	they are just passed from user and back as is.
201	It will be used by hypothetical multiple routing daemons.
202	Note that protocol values should be standardized in order to
203	avoid conflicts.
204	*/
205
206	#define RTPROT_GATED 8 /* Apparently, GateD */
207	#define RTPROT_RA 9 /* RDISC/ND router advertisements */
208	#define RTPROT_MRT 10 /* Merit MRT */
209	#define RTPROT_ZEBRA 11 /* Zebra */
210	#define RTPROT_BIRD 12 /* BIRD */
211	#define RTPROT_DNROUTED 13 /* DECnet routing daemon */
212	#define RTPROT_XORP 14 /* XORP */
40b6c62c	213	#define RTPROT_NTK 15 /* Netsukuku */
0633baa1 SH	214
	215	/* rtm_scope
	216
	217	Really it is not scope, but sort of distance to the destination.
	218	NOWHERE are reserved for not existing destinations, HOST is our
	219	local addresses, LINK are destinations, located on directly attached
	220	link and UNIVERSE is everywhere in the Universe.
	221
	222	Intermediate values are also possible f.e. interior routes
	223	could be assigned a value between UNIVERSE and LINK.
	224	*/
	225
	226	enum rt_scope_t
	227	{
	228	RT_SCOPE_UNIVERSE=0,
	229	/* User defined values */
	230	RT_SCOPE_SITE=200,
	231	RT_SCOPE_LINK=253,
	232	RT_SCOPE_HOST=254,
	233	RT_SCOPE_NOWHERE=255
	234	};
	235
	236	/* rtm_flags */
	237
	238	#define RTM_F_NOTIFY 0x100 /* Notify user of route change */
	239	#define RTM_F_CLONED 0x200 /* This route is cloned */
	240	#define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */
	241	#define RTM_F_PREFIX 0x800 /* Prefix addresses */
	242
	243	/* Reserved table identifiers */
	244
	245	enum rt_class_t
	246	{
	247	RT_TABLE_UNSPEC=0,
	248	/* User defined values */
3ea2fb98	249	RT_TABLE_COMPAT=252,
0633baa1 SH	250	RT_TABLE_DEFAULT=253,
	251	RT_TABLE_MAIN=254,
	252	RT_TABLE_LOCAL=255,
ead2ba70	253	RT_TABLE_MAX=0xFFFFFFFF
0633baa1	254	};
0633baa1 SH	255
	256
	257	/* Routing message attributes */
	258
	259	enum rtattr_type_t
	260	{
	261	RTA_UNSPEC,
	262	RTA_DST,
	263	RTA_SRC,
	264	RTA_IIF,
	265	RTA_OIF,
	266	RTA_GATEWAY,
	267	RTA_PRIORITY,
	268	RTA_PREFSRC,
	269	RTA_METRICS,
	270	RTA_MULTIPATH,
3ea2fb98	271	RTA_PROTOINFO, /* no longer used */
0633baa1 SH	272	RTA_FLOW,
0633baa1 SH	273	RTA_CACHEINFO,
3ea2fb98	274	RTA_SESSION, /* no longer used */
a6ffa8b0	275	RTA_MP_ALGO, /* no longer used */
34e95647	276	RTA_TABLE,
0633baa1 SH	277	__RTA_MAX
	278	};
	279
	280	#define RTA_MAX (__RTA_MAX - 1)
	281
	282	#define RTM_RTA(r) ((struct rtattr)(((char)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
	283	#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
	284
	285	/* RTM_MULTIPATH --- array of struct rtnexthop.
	286	*
	287	* "struct rtnexthop" describes all necessary nexthop information,
	288	* i.e. parameters of path to a destination via this nexthop.
	289	*
	290	* At the moment it is impossible to set different prefsrc, mtu, window
	291	* and rtt for different paths from multipath.
	292	*/
	293
	294	struct rtnexthop
	295	{
	296	unsigned short rtnh_len;
	297	unsigned char rtnh_flags;
	298	unsigned char rtnh_hops;
	299	int rtnh_ifindex;
	300	};
	301
	302	/* rtnh_flags */
	303
	304	#define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
	305	#define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
	306	#define RTNH_F_ONLINK 4 /* Gateway is forced on link */
	307
	308	/* Macros to handle hexthops */
	309
	310	#define RTNH_ALIGNTO 4
	311	#define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
	312	#define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
	313	((int)(rtnh)->rtnh_len) <= (len))
	314	#define RTNH_NEXT(rtnh) ((struct rtnexthop)(((char)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
	315	#define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
	316	#define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))
	317	#define RTNH_DATA(rtnh) ((struct rtattr)(((char)(rtnh)) + RTNH_LENGTH(0)))
	318
	319	/* RTM_CACHEINFO */
	320
	321	struct rta_cacheinfo
	322	{
	323	__u32 rta_clntref;
	324	__u32 rta_lastuse;
	325	__s32 rta_expires;
	326	__u32 rta_error;
	327	__u32 rta_used;
	328
	329	#define RTNETLINK_HAVE_PEERINFO 1
	330	__u32 rta_id;
	331	__u32 rta_ts;
	332	__u32 rta_tsage;
	333	};
	334
	335	/* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
	336
	337	enum
	338	{
	339	RTAX_UNSPEC,
	340	#define RTAX_UNSPEC RTAX_UNSPEC
341	RTAX_LOCK,
342	#define RTAX_LOCK RTAX_LOCK
343	RTAX_MTU,
344	#define RTAX_MTU RTAX_MTU
345	RTAX_WINDOW,
346	#define RTAX_WINDOW RTAX_WINDOW
347	RTAX_RTT,
348	#define RTAX_RTT RTAX_RTT
349	RTAX_RTTVAR,
350	#define RTAX_RTTVAR RTAX_RTTVAR
351	RTAX_SSTHRESH,
352	#define RTAX_SSTHRESH RTAX_SSTHRESH
353	RTAX_CWND,
354	#define RTAX_CWND RTAX_CWND
355	RTAX_ADVMSS,
356	#define RTAX_ADVMSS RTAX_ADVMSS
357	RTAX_REORDERING,
358	#define RTAX_REORDERING RTAX_REORDERING
359	RTAX_HOPLIMIT,
360	#define RTAX_HOPLIMIT RTAX_HOPLIMIT
361	RTAX_INITCWND,
362	#define RTAX_INITCWND RTAX_INITCWND
363	RTAX_FEATURES,
364	#define RTAX_FEATURES RTAX_FEATURES
dfd26e1c SH	365	RTAX_RTO_MIN,
dfd26e1c SH	366	#define RTAX_RTO_MIN RTAX_RTO_MIN
0633baa1 SH	367	__RTAX_MAX
	368	};
	369
	370	#define RTAX_MAX (__RTAX_MAX - 1)
	371
	372	#define RTAX_FEATURE_ECN 0x00000001
	373	#define RTAX_FEATURE_SACK 0x00000002
	374	#define RTAX_FEATURE_TIMESTAMP 0x00000004
206a0441	375	#define RTAX_FEATURE_ALLFRAG 0x00000008
0633baa1 SH	376
	377	struct rta_session
	378	{
	379	__u8 proto;
6864c1e7 SH	380	__u8 pad1;
6864c1e7 SH	381	__u16 pad2;
0633baa1 SH	382
	383	union {
	384	struct {
	385	__u16 sport;
	386	__u16 dport;
	387	} ports;
	388
	389	struct {
	390	__u8 type;
	391	__u8 code;
	392	__u16 ident;
	393	} icmpt;
	394
	395	__u32 spi;
	396	} u;
	397	};
	398
0633baa1 SH	399	/****
	400	* General form of address family dependent message.
	401	****/
	402
	403	struct rtgenmsg
	404	{
	405	unsigned char rtgen_family;
	406	};
	407
	408	/*****************************************************************
	409	* Link layer specific messages.
	410	****/
	411
	412	/* struct ifinfomsg
	413	* passes link level specific information, not dependent
	414	* on network protocol.
	415	*/
	416
	417	struct ifinfomsg
	418	{
	419	unsigned char ifi_family;
	420	unsigned char __ifi_pad;
	421	unsigned short ifi_type; /* ARPHRD_* */
	422	int ifi_index; /* Link index */
	423	unsigned ifi_flags; /* IFF_* flags */
	424	unsigned ifi_change; /* IFF_* change mask */
	425	};
	426
	427	/********************************************************************
	428	* prefix information
	429	****/
	430
	431	struct prefixmsg
	432	{
	433	unsigned char prefix_family;
6864c1e7 SH	434	unsigned char prefix_pad1;
6864c1e7 SH	435	unsigned short prefix_pad2;
0633baa1 SH	436	int prefix_ifindex;
	437	unsigned char prefix_type;
	438	unsigned char prefix_len;
	439	unsigned char prefix_flags;
6864c1e7	440	unsigned char prefix_pad3;
0633baa1 SH	441	};
	442
	443	enum
	444	{
	445	PREFIX_UNSPEC,
	446	PREFIX_ADDRESS,
	447	PREFIX_CACHEINFO,
	448	__PREFIX_MAX
	449	};
	450
	451	#define PREFIX_MAX (__PREFIX_MAX - 1)
	452
	453	struct prefix_cacheinfo
	454	{
	455	__u32 preferred_time;
	456	__u32 valid_time;
	457	};
	458
0633baa1 SH	459
	460	/*****************************************************************
	461	* Traffic control messages.
	462	****/
	463
	464	struct tcmsg
	465	{
	466	unsigned char tcm_family;
	467	unsigned char tcm__pad1;
	468	unsigned short tcm__pad2;
	469	int tcm_ifindex;
	470	__u32 tcm_handle;
	471	__u32 tcm_parent;
	472	__u32 tcm_info;
	473	};
	474
	475	enum
	476	{
	477	TCA_UNSPEC,
	478	TCA_KIND,
	479	TCA_OPTIONS,
	480	TCA_STATS,
	481	TCA_XSTATS,
	482	TCA_RATE,
	483	TCA_FCNT,
e5879dc6	484	TCA_STATS2,
0633baa1 SH	485	__TCA_MAX
	486	};
	487
	488	#define TCA_MAX (__TCA_MAX - 1)
	489
	490	#define TCA_RTA(r) ((struct rtattr)(((char)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
	491	#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
	492
5472ac6f SH	493	/********************************************************************
	494	* Neighbor Discovery userland options
	495	****/
	496
	497	struct nduseroptmsg
	498	{
	499	unsigned char nduseropt_family;
	500	unsigned char nduseropt_pad1;
	501	unsigned short nduseropt_opts_len; /* Total length of options */
	502	int nduseropt_ifindex;
	503	__u8 nduseropt_icmp_type;
	504	__u8 nduseropt_icmp_code;
	505	unsigned short nduseropt_pad2;
	506	unsigned int nduseropt_pad3;
	507	/* Followed by one or more ND options */
	508	};
	509
	510	enum
	511	{
	512	NDUSEROPT_UNSPEC,
	513	NDUSEROPT_SRCADDR,
	514	__NDUSEROPT_MAX
	515	};
	516
	517	#define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1)
	518
351efcde	519	/* RTnetlink multicast groups - backwards compatibility for userspace */
0633baa1 SH	520	#define RTMGRP_LINK 1
	521	#define RTMGRP_NOTIFY 2
	522	#define RTMGRP_NEIGH 4
	523	#define RTMGRP_TC 8
	524
	525	#define RTMGRP_IPV4_IFADDR 0x10
	526	#define RTMGRP_IPV4_MROUTE 0x20
	527	#define RTMGRP_IPV4_ROUTE 0x40
8f8a3648	528	#define RTMGRP_IPV4_RULE 0x80
0633baa1 SH	529
	530	#define RTMGRP_IPV6_IFADDR 0x100
	531	#define RTMGRP_IPV6_MROUTE 0x200
	532	#define RTMGRP_IPV6_ROUTE 0x400
	533	#define RTMGRP_IPV6_IFINFO 0x800
	534
	535	#define RTMGRP_DECnet_IFADDR 0x1000
	536	#define RTMGRP_DECnet_ROUTE 0x4000
	537
	538	#define RTMGRP_IPV6_PREFIX 0x20000
	539
351efcde SH	540	/* RTnetlink multicast groups */
	541	enum rtnetlink_groups {
	542	RTNLGRP_NONE,
	543	#define RTNLGRP_NONE RTNLGRP_NONE
	544	RTNLGRP_LINK,
	545	#define RTNLGRP_LINK RTNLGRP_LINK
	546	RTNLGRP_NOTIFY,
	547	#define RTNLGRP_NOTIFY RTNLGRP_NOTIFY
	548	RTNLGRP_NEIGH,
	549	#define RTNLGRP_NEIGH RTNLGRP_NEIGH
	550	RTNLGRP_TC,
	551	#define RTNLGRP_TC RTNLGRP_TC
	552	RTNLGRP_IPV4_IFADDR,
	553	#define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR
	554	RTNLGRP_IPV4_MROUTE,
	555	#define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE
	556	RTNLGRP_IPV4_ROUTE,
	557	#define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE
8f8a3648 SH	558	RTNLGRP_IPV4_RULE,
8f8a3648 SH	559	#define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE
351efcde SH	560	RTNLGRP_IPV6_IFADDR,
	561	#define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR
	562	RTNLGRP_IPV6_MROUTE,
	563	#define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE
	564	RTNLGRP_IPV6_ROUTE,
	565	#define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE
	566	RTNLGRP_IPV6_IFINFO,
	567	#define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO
	568	RTNLGRP_DECnet_IFADDR,
	569	#define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR
09954dc6	570	RTNLGRP_NOP2,
351efcde SH	571	RTNLGRP_DECnet_ROUTE,
351efcde SH	572	#define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE
ead2ba70 SH	573	RTNLGRP_DECnet_RULE,
ead2ba70 SH	574	#define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE
09954dc6	575	RTNLGRP_NOP4,
351efcde SH	576	RTNLGRP_IPV6_PREFIX,
351efcde SH	577	#define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX
ead2ba70 SH	578	RTNLGRP_IPV6_RULE,
ead2ba70 SH	579	#define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE
5472ac6f SH	580	RTNLGRP_ND_USEROPT,
5472ac6f SH	581	#define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT
351efcde SH	582	__RTNLGRP_MAX
	583	};
	584	#define RTNLGRP_MAX (__RTNLGRP_MAX - 1)
	585
0633baa1 SH	586	/* TC action piece */
	587	struct tcamsg
	588	{
	589	unsigned char tca_family;
	590	unsigned char tca__pad1;
	591	unsigned short tca__pad2;
	592	};
	593	#define TA_RTA(r) ((struct rtattr)(((char)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
	594	#define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
	595	#define TCA_ACT_TAB 1 /* attr type must be >=1 */
	596	#define TCAA_MAX 1
	597
	598	/* End of information exported to user level */
	599
	600
	601
	602	#endif /* __LINUX_RTNETLINK_H */