Home | History | Annotate | Download | only in net
      1      0   stevel /*
      2   8485    Peter  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
      3      0   stevel  * Use is subject to license terms.
      4      0   stevel  */
      5      0   stevel /*
      6      0   stevel  * Copyright (c) 1980, 1986, 1993
      7      0   stevel  *	The Regents of the University of California.  All rights reserved.
      8      0   stevel  *
      9      0   stevel  * Redistribution and use in source and binary forms, with or without
     10      0   stevel  * modification, are permitted provided that the following conditions
     11      0   stevel  * are met:
     12      0   stevel  * 1. Redistributions of source code must retain the above copyright
     13      0   stevel  *    notice, this list of conditions and the following disclaimer.
     14      0   stevel  * 2. Redistributions in binary form must reproduce the above copyright
     15      0   stevel  *    notice, this list of conditions and the following disclaimer in the
     16      0   stevel  *    documentation and/or other materials provided with the distribution.
     17      0   stevel  * 3. All advertising materials mentioning features or use of this software
     18      0   stevel  *    must display the following acknowledgement:
     19      0   stevel  *	This product includes software developed by the University of
     20      0   stevel  *	California, Berkeley and its contributors.
     21      0   stevel  * 4. Neither the name of the University nor the names of its contributors
     22      0   stevel  *    may be used to endorse or promote products derived from this software
     23      0   stevel  *    without specific prior written permission.
     24      0   stevel  *
     25      0   stevel  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26      0   stevel  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27      0   stevel  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28      0   stevel  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29      0   stevel  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30      0   stevel  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31      0   stevel  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32      0   stevel  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33      0   stevel  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34      0   stevel  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35      0   stevel  * SUCH DAMAGE.
     36      0   stevel  */
     37      0   stevel 
     38      0   stevel /*
     39      0   stevel  * Kernel resident routing tables.
     40      0   stevel  *
     41      0   stevel  * The routing tables are initialized when interface addresses
     42      0   stevel  * are set by making entries for all directly connected interfaces.
     43      0   stevel  */
     44      0   stevel 
     45      0   stevel #ifndef	_NET_ROUTE_H
     46      0   stevel #define	_NET_ROUTE_H
     47      0   stevel 
     48      0   stevel /* from UCB 8.5 (Berkeley) 2/8/95 */
     49   1676      jpk 
     50   1676      jpk #include <sys/tsol/label.h>
     51   1676      jpk #include <sys/tsol/label_macro.h>
     52      0   stevel 
     53      0   stevel #ifdef	__cplusplus
     54      0   stevel extern "C" {
     55      0   stevel #endif
     56      0   stevel 
     57      0   stevel /*
     58      0   stevel  * A route consists of a destination address and a reference
     59      0   stevel  * to a routing entry.  These are often held by protocols
     60      0   stevel  * in their control blocks, e.g. inpcb.
     61      0   stevel  */
     62      0   stevel struct route {
     63      0   stevel 	struct	rtentry *ro_rt;
     64      0   stevel 	struct	sockaddr ro_dst;
     65      0   stevel };
     66      0   stevel 
     67      0   stevel /*
     68      0   stevel  * These numbers are used by reliable protocols for determining
     69      0   stevel  * retransmission behavior and are included in the routing structure.
     70      0   stevel  *
     71      0   stevel  * rmx_rtt and rmx_rttvar are stored as microseconds;
     72      0   stevel  */
     73      0   stevel typedef struct rt_metrics {
     74      0   stevel 	uint32_t	rmx_locks;	/* Kernel must leave these values */
     75      0   stevel 					/* alone */
     76      0   stevel 	uint32_t	rmx_mtu;	/* MTU for this path */
     77      0   stevel 	uint32_t	rmx_hopcount;	/* max hops expected */
     78      0   stevel 	uint32_t	rmx_expire;	/* lifetime for route, e.g. redirect */
     79      0   stevel 	uint32_t	rmx_recvpipe;	/* inbound delay-bandwith product */
     80      0   stevel 	uint32_t	rmx_sendpipe;	/* outbound delay-bandwith product */
     81      0   stevel 	uint32_t	rmx_ssthresh;	/* outbound gateway buffer limit */
     82      0   stevel 	uint32_t	rmx_rtt;	/* estimated round trip time */
     83      0   stevel 	uint32_t	rmx_rttvar;	/* estimated rtt variance */
     84      0   stevel 	uint32_t	rmx_pksent;	/* packets sent using this route */
     85      0   stevel } rt_metrics_t;
     86      0   stevel 
     87      0   stevel /*
     88      0   stevel  * OLD rtentry structure not used in the kernel. Instead the kernel
     89      0   stevel  * uses struct ire defined in <inet/ip.h>.
     90      0   stevel  *
     91      0   stevel  * We distinguish between routes to hosts and routes to networks,
     92      0   stevel  * preferring the former if available.  For each route we infer
     93      0   stevel  * the interface to use from the gateway address supplied when
     94      0   stevel  * the route was entered.  Routes that forward packets through
     95      0   stevel  * gateways are marked so that the output routines know to address the
     96      0   stevel  * gateway rather than the ultimate destination.
     97      0   stevel  */
     98      0   stevel struct rtentry {
     99      0   stevel 	uint_t	rt_hash;		/* to speed lookups */
    100      0   stevel 	struct	sockaddr rt_dst;	/* key */
    101      0   stevel 	struct	sockaddr rt_gateway;	/* value */
    102      0   stevel 	short	rt_flags;		/* up/down?, host/net */
    103      0   stevel 	short	rt_refcnt;		/* # held references */
    104      0   stevel 	uint_t	rt_use;			/* raw # packets forwarded */
    105      0   stevel 
    106      0   stevel /*
    107      0   stevel  * The kernel does not use this field, and without it the structure is
    108      0   stevel  * datamodel independent.
    109      0   stevel  */
    110      0   stevel #if !defined(_KERNEL)
    111      0   stevel 	struct	ifnet *rt_ifp;		/* the answer: interface to use */
    112      0   stevel #endif /* !defined(_KERNEL) */
    113      0   stevel };
    114      0   stevel 
    115      0   stevel #define	RTF_UP		0x1		/* route usable */
    116      0   stevel #define	RTF_GATEWAY	0x2		/* destination is a gateway */
    117      0   stevel #define	RTF_HOST	0x4		/* host entry (net otherwise) */
    118      0   stevel #define	RTF_REJECT	0x8		/* host or net unreachable */
    119      0   stevel #define	RTF_DYNAMIC	0x10		/* created dynamically (by redirect) */
    120      0   stevel #define	RTF_MODIFIED	0x20		/* modified dynamically (by redirect) */
    121      0   stevel #define	RTF_DONE	0x40		/* message confirmed */
    122      0   stevel #define	RTF_MASK	0x80		/* subnet mask present */
    123      0   stevel #define	RTF_CLONING	0x100		/* generate new routes on use */
    124      0   stevel #define	RTF_XRESOLVE	0x200		/* external daemon resolves name */
    125      0   stevel #define	RTF_LLINFO	0x400		/* generated by ARP or ESIS */
    126      0   stevel #define	RTF_STATIC	0x800		/* manually added */
    127      0   stevel #define	RTF_BLACKHOLE	0x1000		/* just discard pkts (during updates) */
    128      0   stevel #define	RTF_PRIVATE	0x2000		/* do not advertise this route */
    129      0   stevel #define	RTF_PROTO2	0x4000		/* protocol specific routing flag */
    130      0   stevel #define	RTF_PROTO1	0x8000		/* protocol specific routing flag */
    131      0   stevel #define	RTF_MULTIRT	0x10000		/* multiroute */
    132      0   stevel #define	RTF_SETSRC	0x20000		/* set default outgoing src address */
    133  11042     Erik #define	RTF_INDIRECT	0x40000		/* gateway not directly reachable */
    134  11042     Erik #define	RTF_KERNEL	0x80000		/* created by kernel; can't delete */
    135      0   stevel 
    136      0   stevel /*
    137      0   stevel  * OLD statistics not used by the kernel. The kernel uses <inet/mib2.h>.
    138      0   stevel  *
    139      0   stevel  * Routing statistics.
    140      0   stevel  */
    141      0   stevel struct	rtstat {
    142      0   stevel 	short	rts_badredirect;	/* bogus redirect calls */
    143      0   stevel 	short	rts_dynamic;		/* routes created by redirects */
    144      0   stevel 	short	rts_newgateway;		/* routes modified by redirects */
    145      0   stevel 	short	rts_unreach;		/* lookups which failed */
    146      0   stevel 	short	rts_wildcard;		/* lookups satisfied by a wildcard */
    147      0   stevel };
    148      0   stevel 
    149      0   stevel /*
    150      0   stevel  * Structures for routing messages.
    151      0   stevel  */
    152      0   stevel typedef struct rt_msghdr {
    153      0   stevel 	ushort_t rtm_msglen;	/* to skip over non-understood messages */
    154      0   stevel 	uchar_t	rtm_version;	/* future binary compatibility */
    155      0   stevel 	uchar_t	rtm_type;	/* message type */
    156      0   stevel 	ushort_t rtm_index;	/* index for associated ifp */
    157      0   stevel 	int	rtm_flags;	/* flags, incl. kern & message, e.g. DONE */
    158      0   stevel 	int	rtm_addrs;	/* bitmask identifying sockaddrs in msg */
    159      0   stevel 	pid_t	rtm_pid;	/* identify sender */
    160      0   stevel 	int	rtm_seq;	/* for sender to identify action */
    161      0   stevel 	int	rtm_errno;	/* why failed */
    162      0   stevel 	int	rtm_use;	/* from rtentry */
    163      0   stevel 	uint_t	rtm_inits;	/* which metrics we are initializing */
    164      0   stevel 	struct	rt_metrics rtm_rmx; /* metrics themselves */
    165      0   stevel } rt_msghdr_t;
    166      0   stevel 
    167      0   stevel #define	RTM_VERSION	3	/* Up the ante and ignore older versions */
    168      0   stevel 
    169      0   stevel #define	RTM_ADD		0x1	/* Add Route */
    170      0   stevel #define	RTM_DELETE	0x2	/* Delete Route */
    171      0   stevel #define	RTM_CHANGE	0x3	/* Change Metrics or flags */
    172      0   stevel #define	RTM_GET		0x4	/* Report Metrics */
    173      0   stevel #define	RTM_LOSING	0x5	/* Kernel Suspects Partitioning */
    174      0   stevel #define	RTM_REDIRECT	0x6	/* Told to use different route */
    175      0   stevel #define	RTM_MISS	0x7	/* Lookup failed on this address */
    176      0   stevel #define	RTM_LOCK	0x8	/* fix specified metrics */
    177      0   stevel #define	RTM_OLDADD	0x9	/* caused by SIOCADDRT */
    178      0   stevel #define	RTM_OLDDEL	0xa	/* caused by SIOCDELRT */
    179      0   stevel #define	RTM_RESOLVE	0xb	/* req to resolve dst to LL addr */
    180      0   stevel #define	RTM_NEWADDR	0xc	/* address being added to iface */
    181      0   stevel #define	RTM_DELADDR	0xd	/* address being removed from iface */
    182      0   stevel #define	RTM_IFINFO	0xe	/* iface going up/down etc. */
    183  11076    Cathy #define	RTM_CHGADDR	0xf	/* address added/changed (even while down) */
    184  11076    Cathy #define	RTM_FREEADDR	0x10	/* address removed (even while down) */
    185      0   stevel 
    186      0   stevel #define	RTV_MTU		0x1	/* init or lock _mtu */
    187      0   stevel #define	RTV_HOPCOUNT	0x2	/* init or lock _hopcount */
    188      0   stevel #define	RTV_EXPIRE	0x4	/* init or lock _expire */
    189      0   stevel #define	RTV_RPIPE	0x8	/* init or lock _recvpipe */
    190      0   stevel #define	RTV_SPIPE	0x10	/* init or lock _sendpipe */
    191      0   stevel #define	RTV_SSTHRESH	0x20	/* init or lock _ssthresh */
    192      0   stevel #define	RTV_RTT		0x40	/* init or lock _rtt */
    193      0   stevel #define	RTV_RTTVAR	0x80	/* init or lock _rttvar */
    194      0   stevel 
    195      0   stevel /*
    196      0   stevel  * Bitmask values for rtm_addr.
    197      0   stevel  */
    198      0   stevel #define	RTA_DST		0x1	/* destination sockaddr present */
    199      0   stevel #define	RTA_GATEWAY	0x2	/* gateway sockaddr present */
    200      0   stevel #define	RTA_NETMASK	0x4	/* netmask sockaddr present */
    201      0   stevel #define	RTA_GENMASK	0x8	/* cloning mask sockaddr present */
    202      0   stevel #define	RTA_IFP		0x10	/* interface name sockaddr present */
    203      0   stevel #define	RTA_IFA		0x20	/* interface addr sockaddr present */
    204      0   stevel #define	RTA_AUTHOR	0x40	/* sockaddr for author of redirect */
    205      0   stevel #define	RTA_BRD		0x80	/* for NEWADDR, broadcast or p-p dest addr */
    206      0   stevel #define	RTA_SRC		0x100	/* source sockaddr present */
    207      0   stevel 
    208   4823      seb #define	RTA_NUMBITS	9	/* Number of bits used in RTA_* */
    209      0   stevel 
    210      0   stevel /*
    211      0   stevel  * Index offsets for sockaddr_storage array for alternate internal encoding.
    212      0   stevel  * There should be an RTAX_* associated with each RTA_*.
    213      0   stevel  */
    214      0   stevel #define	RTAX_DST	0
    215      0   stevel #define	RTAX_GATEWAY	1
    216      0   stevel #define	RTAX_NETMASK	2
    217      0   stevel #define	RTAX_GENMASK	3
    218      0   stevel #define	RTAX_IFP	4
    219      0   stevel #define	RTAX_IFA	5
    220      0   stevel #define	RTAX_AUTHOR	6
    221      0   stevel #define	RTAX_BRD	7
    222      0   stevel #define	RTAX_SRC	8
    223      0   stevel #define	RTAX_MAX	RTA_NUMBITS	/* size of array to allocate */
    224      0   stevel 
    225   1676      jpk /*
    226   1676      jpk  * Routing socket message extension after sockaddrs.
    227   1676      jpk  */
    228   1676      jpk typedef struct rtm_ext_s {
    229   1676      jpk 	uint32_t	rtmex_type;	/* identifier for type of extension */
    230   1676      jpk 	uint32_t	rtmex_len;	/* length of this extension */
    231   1676      jpk } rtm_ext_t;
    232   1676      jpk 
    233   1676      jpk #define	RTMEX_GATEWAY_SECATTR	1	/* extension is tsol_rtsecattr */
    234   1676      jpk #define	RTMEX_MAX	RTMEX_GATEWAY_SECATTR
    235   1676      jpk 
    236   1676      jpk /*
    237   1676      jpk  * Trusted Solaris route security attributes extension.
    238   1676      jpk  */
    239   1919  jarrett typedef struct rtsa_s {
    240   1919  jarrett 	uint32_t	rtsa_mask;	/* see RTSA_* below */
    241   1919  jarrett 	uint32_t	rtsa_doi;	/* domain of interpretation */
    242   1919  jarrett 	brange_t	rtsa_slrange;	/* sensitivity label range */
    243   1919  jarrett } rtsa_t;
    244   1919  jarrett 
    245   1676      jpk typedef struct tsol_rtsecattr_s {
    246   1676      jpk 	uint32_t	rtsa_cnt;	/* number of attributes */
    247   1919  jarrett 	rtsa_t		rtsa_attr[1];
    248   1676      jpk } tsol_rtsecattr_t;
    249   1676      jpk 
    250   1676      jpk #define	TSOL_RTSECATTR_SIZE(n) \
    251   1676      jpk 	(sizeof (tsol_rtsecattr_t) + (((n) - 1) * sizeof (struct rtsa_s)))
    252   1676      jpk 
    253   1676      jpk #define	RTSA_MINSL	0x1	/* minimum sensitivity label is valid */
    254   1676      jpk #define	RTSA_MAXSL	0x2	/* maximum sensitivity label is valid */
    255   1676      jpk #define	RTSA_DOI	0x4	/* domain of interpretation is valid */
    256   1676      jpk #define	RTSA_CIPSO	0x100	/* CIPSO protocol */
    257   1676      jpk #define	RTSA_SLRANGE (RTSA_MINSL|RTSA_MAXSL)
    258   1676      jpk 
    259   8485    Peter /*
    260   8485    Peter  * Routing socket options.
    261   8485    Peter  */
    262   8485    Peter #define	RT_AWARE	0x0001	/* set awareness of hidden interfaces */
    263   8485    Peter 
    264   8485    Peter /*
    265   8485    Peter  * Supported RT_AWARE values.  As a convenience, the bit-values here mirror
    266   8485    Peter  * the LIFC_* values.
    267   8485    Peter  */
    268   8485    Peter #define	RTAW_DEFAULT	0x0000	/* unaware application */
    269   8485    Peter #define	RTAW_UNDER_IPMP	0x0010	/* aware of underlying IPMP interfaces */
    270   8485    Peter 
    271      0   stevel #ifdef	__cplusplus
    272      0   stevel }
    273      0   stevel #endif
    274      0   stevel 
    275      0   stevel #endif	/* _NET_ROUTE_H */
    276