[people/ms/rstp.git] / include / linux / rtnetlink.h

#ifndef __LINUX_RTNETLINK_H
#define __LINUX_RTNETLINK_H

#include <linux/types.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_GETDCB = 78,
#define RTM_GETDCB RTM_GETDCB
	RTM_SETDCB,
#define RTM_SETDCB RTM_SETDCB

	__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_STAB,
	__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_PHONET_IFADDR,
#define RTNLGRP_PHONET_IFADDR	RTNLGRP_PHONET_IFADDR
	RTNLGRP_PHONET_ROUTE,
#define RTNLGRP_PHONET_ROUTE	RTNLGRP_PHONET_ROUTE
	__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
ad02a0eb SH	1	#ifndef __LINUX_RTNETLINK_H
	2	#define __LINUX_RTNETLINK_H
	3
28be5578	4	#include <linux/types.h>
ad02a0eb	5	#include <linux/netlink.h>
28be5578 SH	6	#include <linux/if_link.h>
	7	#include <linux/if_addr.h>
	8	#include <linux/neighbour.h>
ad02a0eb SH	9
	10	/****
	11	* Routing/neighbour discovery messages.
	12	****/
	13
	14	/* Types of messages */
	15
	16	enum {
	17	RTM_BASE = 16,
	18	#define RTM_BASE RTM_BASE
	19
	20	RTM_NEWLINK = 16,
	21	#define RTM_NEWLINK RTM_NEWLINK
	22	RTM_DELLINK,
	23	#define RTM_DELLINK RTM_DELLINK
	24	RTM_GETLINK,
	25	#define RTM_GETLINK RTM_GETLINK
	26	RTM_SETLINK,
	27	#define RTM_SETLINK RTM_SETLINK
	28
	29	RTM_NEWADDR = 20,
	30	#define RTM_NEWADDR RTM_NEWADDR
	31	RTM_DELADDR,
	32	#define RTM_DELADDR RTM_DELADDR
	33	RTM_GETADDR,
	34	#define RTM_GETADDR RTM_GETADDR
	35
	36	RTM_NEWROUTE = 24,
	37	#define RTM_NEWROUTE RTM_NEWROUTE
	38	RTM_DELROUTE,
	39	#define RTM_DELROUTE RTM_DELROUTE
	40	RTM_GETROUTE,
	41	#define RTM_GETROUTE RTM_GETROUTE
	42
	43	RTM_NEWNEIGH = 28,
	44	#define RTM_NEWNEIGH RTM_NEWNEIGH
	45	RTM_DELNEIGH,
	46	#define RTM_DELNEIGH RTM_DELNEIGH
	47	RTM_GETNEIGH,
	48	#define RTM_GETNEIGH RTM_GETNEIGH
	49
	50	RTM_NEWRULE = 32,
	51	#define RTM_NEWRULE RTM_NEWRULE
	52	RTM_DELRULE,
	53	#define RTM_DELRULE RTM_DELRULE
	54	RTM_GETRULE,
	55	#define RTM_GETRULE RTM_GETRULE
	56
	57	RTM_NEWQDISC = 36,
	58	#define RTM_NEWQDISC RTM_NEWQDISC
	59	RTM_DELQDISC,
	60	#define RTM_DELQDISC RTM_DELQDISC
	61	RTM_GETQDISC,
	62	#define RTM_GETQDISC RTM_GETQDISC
	63
	64	RTM_NEWTCLASS = 40,
	65	#define RTM_NEWTCLASS RTM_NEWTCLASS
	66	RTM_DELTCLASS,
	67	#define RTM_DELTCLASS RTM_DELTCLASS
	68	RTM_GETTCLASS,
	69	#define RTM_GETTCLASS RTM_GETTCLASS
	70
	71	RTM_NEWTFILTER = 44,
	72	#define RTM_NEWTFILTER RTM_NEWTFILTER
73	RTM_DELTFILTER,
74	#define RTM_DELTFILTER RTM_DELTFILTER
75	RTM_GETTFILTER,
76	#define RTM_GETTFILTER RTM_GETTFILTER
77
78	RTM_NEWACTION = 48,
79	#define RTM_NEWACTION RTM_NEWACTION
80	RTM_DELACTION,
81	#define RTM_DELACTION RTM_DELACTION
82	RTM_GETACTION,
83	#define RTM_GETACTION RTM_GETACTION
84
85	RTM_NEWPREFIX = 52,
86	#define RTM_NEWPREFIX RTM_NEWPREFIX
ad02a0eb SH	87
	88	RTM_GETMULTICAST = 58,
	89	#define RTM_GETMULTICAST RTM_GETMULTICAST
	90
	91	RTM_GETANYCAST = 62,
	92	#define RTM_GETANYCAST RTM_GETANYCAST
	93
	94	RTM_NEWNEIGHTBL = 64,
	95	#define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL
	96	RTM_GETNEIGHTBL = 66,
	97	#define RTM_GETNEIGHTBL RTM_GETNEIGHTBL
	98	RTM_SETNEIGHTBL,
	99	#define RTM_SETNEIGHTBL RTM_SETNEIGHTBL
	100
28be5578 SH	101	RTM_NEWNDUSEROPT = 68,
	102	#define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT
	103
	104	RTM_NEWADDRLABEL = 72,
	105	#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
	106	RTM_DELADDRLABEL,
	107	#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
	108	RTM_GETADDRLABEL,
	109	#define RTM_GETADDRLABEL RTM_GETADDRLABEL
	110
	111	RTM_GETDCB = 78,
	112	#define RTM_GETDCB RTM_GETDCB
	113	RTM_SETDCB,
	114	#define RTM_SETDCB RTM_SETDCB
	115
ad02a0eb SH	116	__RTM_MAX,
	117	#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)
	118	};
	119
	120	#define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)
	121	#define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)
	122	#define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2)
	123
	124	/*
	125	Generic structure for encapsulation of optional route information.
	126	It is reminiscent of sockaddr, but with sa_family replaced
	127	with attribute type.
	128	*/
	129
	130	struct rtattr
	131	{
	132	unsigned short rta_len;
	133	unsigned short rta_type;
	134	};
	135
	136	/* Macros to handle rtattributes */
	137
	138	#define RTA_ALIGNTO 4
	139	#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
	140	#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
	141	(rta)->rta_len >= sizeof(struct rtattr) && \
	142	(rta)->rta_len <= (len))
	143	#define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
	144	(struct rtattr)(((char)(rta)) + RTA_ALIGN((rta)->rta_len)))
	145	#define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
	146	#define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))
	147	#define RTA_DATA(rta) ((void)(((char)(rta)) + RTA_LENGTH(0)))
	148	#define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
	149
	150
	151
	152
	153	/******************************************************************************
	154	* Definitions used in routing table administration.
	155	****/
	156
	157	struct rtmsg
	158	{
	159	unsigned char rtm_family;
	160	unsigned char rtm_dst_len;
	161	unsigned char rtm_src_len;
	162	unsigned char rtm_tos;
	163
	164	unsigned char rtm_table; /* Routing table id */
	165	unsigned char rtm_protocol; /* Routing protocol; see below */
	166	unsigned char rtm_scope; /* See below */
	167	unsigned char rtm_type; /* See below */
	168
	169	unsigned rtm_flags;
	170	};
	171
	172	/* rtm_type */
	173
	174	enum
	175	{
	176	RTN_UNSPEC,
	177	RTN_UNICAST, /* Gateway or direct route */
	178	RTN_LOCAL, /* Accept locally */
	179	RTN_BROADCAST, /* Accept locally as broadcast,
180	send as broadcast */
181	RTN_ANYCAST, /* Accept locally as broadcast,
182	but send as unicast */
183	RTN_MULTICAST, /* Multicast route */
184	RTN_BLACKHOLE, /* Drop */
185	RTN_UNREACHABLE, /* Destination is unreachable */
186	RTN_PROHIBIT, /* Administratively prohibited */
187	RTN_THROW, /* Not in this table */
188	RTN_NAT, /* Translate this address */
189	RTN_XRESOLVE, /* Use external resolver */
190	__RTN_MAX
191	};
192
193	#define RTN_MAX (__RTN_MAX - 1)
194
195
196	/* rtm_protocol */
197
198	#define RTPROT_UNSPEC 0
199	#define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects;
200	not used by current IPv4 */
201	#define RTPROT_KERNEL 2 /* Route installed by kernel */
202	#define RTPROT_BOOT 3 /* Route installed during boot */
203	#define RTPROT_STATIC 4 /* Route installed by administrator */
204
205	/* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
206	they are just passed from user and back as is.
207	It will be used by hypothetical multiple routing daemons.
208	Note that protocol values should be standardized in order to
209	avoid conflicts.
210	*/
211
212	#define RTPROT_GATED 8 /* Apparently, GateD */
213	#define RTPROT_RA 9 /* RDISC/ND router advertisements */
214	#define RTPROT_MRT 10 /* Merit MRT */
215	#define RTPROT_ZEBRA 11 /* Zebra */
216	#define RTPROT_BIRD 12 /* BIRD */
217	#define RTPROT_DNROUTED 13 /* DECnet routing daemon */
218	#define RTPROT_XORP 14 /* XORP */
219	#define RTPROT_NTK 15 /* Netsukuku */
220
221	/* rtm_scope
222
223	Really it is not scope, but sort of distance to the destination.
224	NOWHERE are reserved for not existing destinations, HOST is our
225	local addresses, LINK are destinations, located on directly attached
226	link and UNIVERSE is everywhere in the Universe.
227
228	Intermediate values are also possible f.e. interior routes
229	could be assigned a value between UNIVERSE and LINK.
230	*/
231
232	enum rt_scope_t
233	{
234	RT_SCOPE_UNIVERSE=0,
235	/* User defined values */
236	RT_SCOPE_SITE=200,
237	RT_SCOPE_LINK=253,
238	RT_SCOPE_HOST=254,
239	RT_SCOPE_NOWHERE=255
240	};
241
242	/* rtm_flags */
243
244	#define RTM_F_NOTIFY 0x100 /* Notify user of route change */
245	#define RTM_F_CLONED 0x200 /* This route is cloned */
246	#define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */
247	#define RTM_F_PREFIX 0x800 /* Prefix addresses */
248
249	/* Reserved table identifiers */
250
251	enum rt_class_t
252	{
253	RT_TABLE_UNSPEC=0,
254	/* User defined values */
28be5578	255	RT_TABLE_COMPAT=252,
ad02a0eb SH	256	RT_TABLE_DEFAULT=253,
	257	RT_TABLE_MAIN=254,
	258	RT_TABLE_LOCAL=255,
28be5578	259	RT_TABLE_MAX=0xFFFFFFFF
ad02a0eb	260	};
ad02a0eb SH	261
	262
	263	/* Routing message attributes */
	264
	265	enum rtattr_type_t
	266	{
	267	RTA_UNSPEC,
	268	RTA_DST,
	269	RTA_SRC,
	270	RTA_IIF,
	271	RTA_OIF,
	272	RTA_GATEWAY,
	273	RTA_PRIORITY,
	274	RTA_PREFSRC,
	275	RTA_METRICS,
	276	RTA_MULTIPATH,
28be5578	277	RTA_PROTOINFO, /* no longer used */
ad02a0eb SH	278	RTA_FLOW,
ad02a0eb SH	279	RTA_CACHEINFO,
28be5578 SH	280	RTA_SESSION, /* no longer used */
	281	RTA_MP_ALGO, /* no longer used */
	282	RTA_TABLE,
ad02a0eb SH	283	__RTA_MAX
	284	};
	285
	286	#define RTA_MAX (__RTA_MAX - 1)
	287
	288	#define RTM_RTA(r) ((struct rtattr)(((char)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
	289	#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
	290
	291	/* RTM_MULTIPATH --- array of struct rtnexthop.
	292	*
	293	* "struct rtnexthop" describes all necessary nexthop information,
	294	* i.e. parameters of path to a destination via this nexthop.
	295	*
	296	* At the moment it is impossible to set different prefsrc, mtu, window
	297	* and rtt for different paths from multipath.
	298	*/
	299
	300	struct rtnexthop
	301	{
	302	unsigned short rtnh_len;
	303	unsigned char rtnh_flags;
	304	unsigned char rtnh_hops;
	305	int rtnh_ifindex;
	306	};
	307
	308	/* rtnh_flags */
	309
	310	#define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
	311	#define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
	312	#define RTNH_F_ONLINK 4 /* Gateway is forced on link */
	313
	314	/* Macros to handle hexthops */
	315
	316	#define RTNH_ALIGNTO 4
	317	#define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
	318	#define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
	319	((int)(rtnh)->rtnh_len) <= (len))
	320	#define RTNH_NEXT(rtnh) ((struct rtnexthop)(((char)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
	321	#define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
	322	#define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))
	323	#define RTNH_DATA(rtnh) ((struct rtattr)(((char)(rtnh)) + RTNH_LENGTH(0)))
	324
	325	/* RTM_CACHEINFO */
	326
	327	struct rta_cacheinfo
	328	{
	329	__u32 rta_clntref;
	330	__u32 rta_lastuse;
	331	__s32 rta_expires;
	332	__u32 rta_error;
	333	__u32 rta_used;
	334
	335	#define RTNETLINK_HAVE_PEERINFO 1
	336	__u32 rta_id;
	337	__u32 rta_ts;
	338	__u32 rta_tsage;
	339	};
	340
	341	/* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
	342
	343	enum
	344	{
	345	RTAX_UNSPEC,
	346	#define RTAX_UNSPEC RTAX_UNSPEC
347	RTAX_LOCK,
348	#define RTAX_LOCK RTAX_LOCK
349	RTAX_MTU,
350	#define RTAX_MTU RTAX_MTU
351	RTAX_WINDOW,
352	#define RTAX_WINDOW RTAX_WINDOW
353	RTAX_RTT,
354	#define RTAX_RTT RTAX_RTT
355	RTAX_RTTVAR,
356	#define RTAX_RTTVAR RTAX_RTTVAR
357	RTAX_SSTHRESH,
358	#define RTAX_SSTHRESH RTAX_SSTHRESH
359	RTAX_CWND,
360	#define RTAX_CWND RTAX_CWND
361	RTAX_ADVMSS,
362	#define RTAX_ADVMSS RTAX_ADVMSS
363	RTAX_REORDERING,
364	#define RTAX_REORDERING RTAX_REORDERING
365	RTAX_HOPLIMIT,
366	#define RTAX_HOPLIMIT RTAX_HOPLIMIT
367	RTAX_INITCWND,
368	#define RTAX_INITCWND RTAX_INITCWND
369	RTAX_FEATURES,
370	#define RTAX_FEATURES RTAX_FEATURES
28be5578 SH	371	RTAX_RTO_MIN,
28be5578 SH	372	#define RTAX_RTO_MIN RTAX_RTO_MIN
ad02a0eb SH	373	__RTAX_MAX
	374	};
	375
	376	#define RTAX_MAX (__RTAX_MAX - 1)
	377
	378	#define RTAX_FEATURE_ECN 0x00000001
	379	#define RTAX_FEATURE_SACK 0x00000002
	380	#define RTAX_FEATURE_TIMESTAMP 0x00000004
	381	#define RTAX_FEATURE_ALLFRAG 0x00000008
	382
	383	struct rta_session
	384	{
	385	__u8 proto;
	386	__u8 pad1;
	387	__u16 pad2;
	388
	389	union {
	390	struct {
	391	__u16 sport;
	392	__u16 dport;
	393	} ports;
	394
	395	struct {
	396	__u8 type;
	397	__u8 code;
	398	__u16 ident;
	399	} icmpt;
	400
	401	__u32 spi;
	402	} u;
	403	};
	404
ad02a0eb SH	405	/****
	406	* General form of address family dependent message.
	407	****/
	408
	409	struct rtgenmsg
	410	{
	411	unsigned char rtgen_family;
	412	};
	413
	414	/*****************************************************************
	415	* Link layer specific messages.
	416	****/
	417
	418	/* struct ifinfomsg
	419	* passes link level specific information, not dependent
	420	* on network protocol.
	421	*/
	422
	423	struct ifinfomsg
	424	{
	425	unsigned char ifi_family;
	426	unsigned char __ifi_pad;
	427	unsigned short ifi_type; /* ARPHRD_* */
	428	int ifi_index; /* Link index */
	429	unsigned ifi_flags; /* IFF_* flags */
	430	unsigned ifi_change; /* IFF_* change mask */
	431	};
	432
	433	/********************************************************************
	434	* prefix information
	435	****/
	436
	437	struct prefixmsg
	438	{
	439	unsigned char prefix_family;
	440	unsigned char prefix_pad1;
	441	unsigned short prefix_pad2;
	442	int prefix_ifindex;
	443	unsigned char prefix_type;
	444	unsigned char prefix_len;
	445	unsigned char prefix_flags;
	446	unsigned char prefix_pad3;
	447	};
	448
	449	enum
	450	{
	451	PREFIX_UNSPEC,
	452	PREFIX_ADDRESS,
	453	PREFIX_CACHEINFO,
	454	__PREFIX_MAX
	455	};
	456
	457	#define PREFIX_MAX (__PREFIX_MAX - 1)
	458
	459	struct prefix_cacheinfo
	460	{
	461	__u32 preferred_time;
	462	__u32 valid_time;
	463	};
	464
ad02a0eb SH	465
	466	/*****************************************************************
	467	* Traffic control messages.
	468	****/
	469
	470	struct tcmsg
	471	{
	472	unsigned char tcm_family;
	473	unsigned char tcm__pad1;
	474	unsigned short tcm__pad2;
	475	int tcm_ifindex;
	476	__u32 tcm_handle;
	477	__u32 tcm_parent;
	478	__u32 tcm_info;
	479	};
	480
	481	enum
	482	{
	483	TCA_UNSPEC,
	484	TCA_KIND,
	485	TCA_OPTIONS,
	486	TCA_STATS,
	487	TCA_XSTATS,
	488	TCA_RATE,
	489	TCA_FCNT,
	490	TCA_STATS2,
28be5578	491	TCA_STAB,
ad02a0eb SH	492	__TCA_MAX
	493	};
	494
	495	#define TCA_MAX (__TCA_MAX - 1)
	496
	497	#define TCA_RTA(r) ((struct rtattr)(((char)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
	498	#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
	499
28be5578 SH	500	/********************************************************************
	501	* Neighbor Discovery userland options
	502	****/
	503
	504	struct nduseroptmsg
	505	{
	506	unsigned char nduseropt_family;
	507	unsigned char nduseropt_pad1;
	508	unsigned short nduseropt_opts_len; /* Total length of options */
	509	int nduseropt_ifindex;
	510	__u8 nduseropt_icmp_type;
	511	__u8 nduseropt_icmp_code;
	512	unsigned short nduseropt_pad2;
	513	unsigned int nduseropt_pad3;
	514	/* Followed by one or more ND options */
	515	};
	516
	517	enum
	518	{
	519	NDUSEROPT_UNSPEC,
	520	NDUSEROPT_SRCADDR,
	521	__NDUSEROPT_MAX
	522	};
	523
	524	#define NDUSEROPT_MAX (__NDUSEROPT_MAX - 1)
	525
ad02a0eb SH	526	/* RTnetlink multicast groups - backwards compatibility for userspace */
	527	#define RTMGRP_LINK 1
	528	#define RTMGRP_NOTIFY 2
	529	#define RTMGRP_NEIGH 4
	530	#define RTMGRP_TC 8
	531
	532	#define RTMGRP_IPV4_IFADDR 0x10
	533	#define RTMGRP_IPV4_MROUTE 0x20
	534	#define RTMGRP_IPV4_ROUTE 0x40
	535	#define RTMGRP_IPV4_RULE 0x80
	536
	537	#define RTMGRP_IPV6_IFADDR 0x100
	538	#define RTMGRP_IPV6_MROUTE 0x200
	539	#define RTMGRP_IPV6_ROUTE 0x400
	540	#define RTMGRP_IPV6_IFINFO 0x800
	541
	542	#define RTMGRP_DECnet_IFADDR 0x1000
	543	#define RTMGRP_DECnet_ROUTE 0x4000
	544
	545	#define RTMGRP_IPV6_PREFIX 0x20000
	546
	547	/* RTnetlink multicast groups */
	548	enum rtnetlink_groups {
	549	RTNLGRP_NONE,
	550	#define RTNLGRP_NONE RTNLGRP_NONE
	551	RTNLGRP_LINK,
	552	#define RTNLGRP_LINK RTNLGRP_LINK
	553	RTNLGRP_NOTIFY,
	554	#define RTNLGRP_NOTIFY RTNLGRP_NOTIFY
	555	RTNLGRP_NEIGH,
	556	#define RTNLGRP_NEIGH RTNLGRP_NEIGH
	557	RTNLGRP_TC,
	558	#define RTNLGRP_TC RTNLGRP_TC
	559	RTNLGRP_IPV4_IFADDR,
	560	#define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR
	561	RTNLGRP_IPV4_MROUTE,
	562	#define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE
	563	RTNLGRP_IPV4_ROUTE,
	564	#define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE
	565	RTNLGRP_IPV4_RULE,
	566	#define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE
	567	RTNLGRP_IPV6_IFADDR,
	568	#define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR
	569	RTNLGRP_IPV6_MROUTE,
	570	#define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE
	571	RTNLGRP_IPV6_ROUTE,
	572	#define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE
	573	RTNLGRP_IPV6_IFINFO,
	574	#define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO
	575	RTNLGRP_DECnet_IFADDR,
	576	#define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR
	577	RTNLGRP_NOP2,
	578	RTNLGRP_DECnet_ROUTE,
	579	#define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE
28be5578 SH	580	RTNLGRP_DECnet_RULE,
28be5578 SH	581	#define RTNLGRP_DECnet_RULE RTNLGRP_DECnet_RULE
ad02a0eb SH	582	RTNLGRP_NOP4,
	583	RTNLGRP_IPV6_PREFIX,
	584	#define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX
28be5578 SH	585	RTNLGRP_IPV6_RULE,
	586	#define RTNLGRP_IPV6_RULE RTNLGRP_IPV6_RULE
	587	RTNLGRP_ND_USEROPT,
	588	#define RTNLGRP_ND_USEROPT RTNLGRP_ND_USEROPT
	589	RTNLGRP_PHONET_IFADDR,
	590	#define RTNLGRP_PHONET_IFADDR RTNLGRP_PHONET_IFADDR
	591	RTNLGRP_PHONET_ROUTE,
	592	#define RTNLGRP_PHONET_ROUTE RTNLGRP_PHONET_ROUTE
ad02a0eb SH	593	__RTNLGRP_MAX
	594	};
	595	#define RTNLGRP_MAX (__RTNLGRP_MAX - 1)
	596
	597	/* TC action piece */
	598	struct tcamsg
	599	{
	600	unsigned char tca_family;
	601	unsigned char tca__pad1;
	602	unsigned short tca__pad2;
	603	};
	604	#define TA_RTA(r) ((struct rtattr)(((char)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
	605	#define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
	606	#define TCA_ACT_TAB 1 /* attr type must be >=1 */
	607	#define TCAA_MAX 1
	608
	609	/* End of information exported to user level */
	610
	611
	612
	613	#endif /* __LINUX_RTNETLINK_H */