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      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 /*
      7      0    stevel  * Copyright (c) 1988, 1991, 1993
      8      0    stevel  *	The Regents of the University of California.  All rights reserved.
      9      0    stevel  *
     10      0    stevel  * Redistribution and use in source and binary forms, with or without
     11      0    stevel  * modification, are permitted provided that the following conditions
     12      0    stevel  * are met:
     13      0    stevel  * 1. Redistributions of source code must retain the above copyright
     14      0    stevel  *    notice, this list of conditions and the following disclaimer.
     15      0    stevel  * 2. Redistributions in binary form must reproduce the above copyright
     16      0    stevel  *    notice, this list of conditions and the following disclaimer in the
     17      0    stevel  *    documentation and/or other materials provided with the distribution.
     18      0    stevel  * 3. All advertising materials mentioning features or use of this software
     19      0    stevel  *    must display the following acknowledgement:
     20      0    stevel  *	This product includes software developed by the University of
     21      0    stevel  *	California, Berkeley and its contributors.
     22      0    stevel  * 4. Neither the name of the University nor the names of its contributors
     23      0    stevel  *    may be used to endorse or promote products derived from this software
     24      0    stevel  *    without specific prior written permission.
     25      0    stevel  *
     26      0    stevel  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27      0    stevel  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28      0    stevel  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29      0    stevel  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30      0    stevel  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31      0    stevel  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32      0    stevel  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33      0    stevel  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34      0    stevel  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35      0    stevel  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36      0    stevel  * SUCH DAMAGE.
     37      0    stevel  *
     38      0    stevel  *	@(#)rtsock.c	8.6 (Berkeley) 2/11/95
     39      0    stevel  */
     40      0    stevel 
     41      0    stevel /*
     42      0    stevel  * This file contains routines that processes routing socket requests.
     43      0    stevel  */
     44      0    stevel 
     45      0    stevel #include <sys/types.h>
     46      0    stevel #include <sys/stream.h>
     47      0    stevel #include <sys/stropts.h>
     48      0    stevel #include <sys/strlog.h>
     49      0    stevel #include <sys/dlpi.h>
     50      0    stevel #include <sys/ddi.h>
     51      0    stevel #include <sys/cmn_err.h>
     52      0    stevel #include <sys/debug.h>
     53      0    stevel 
     54      0    stevel #include <sys/systm.h>
     55      0    stevel #include <sys/param.h>
     56      0    stevel #include <sys/socket.h>
     57      0    stevel #define	_SUN_TPI_VERSION	2
     58      0    stevel #include <sys/tihdr.h>
     59      0    stevel #include <net/if.h>
     60      0    stevel #include <net/route.h>
     61      0    stevel #include <netinet/in.h>
     62      0    stevel #include <net/if_dl.h>
     63      0    stevel #include <netinet/ip6.h>
     64      0    stevel 
     65      0    stevel #include <inet/common.h>
     66      0    stevel #include <inet/mi.h>
     67      0    stevel #include <inet/ip.h>
     68      0    stevel #include <inet/ip6.h>
     69      0    stevel #include <inet/ip_if.h>
     70      0    stevel #include <inet/ip_ire.h>
     71      0    stevel #include <inet/ip_rts.h>
     72      0    stevel #include <inet/ip_multi.h>
     73   1676       jpk #include <sys/tsol/tndb.h>
     74   1676       jpk #include <sys/tsol/tnet.h>
     75      0    stevel 
     76      0    stevel /*
     77      0    stevel  * Fills the message with the given info.
     78      0    stevel  */
     79      0    stevel void
     80      0    stevel rts_fill_msg_v6(int type, int rtm_addrs, const in6_addr_t *dst,
     81      0    stevel     const in6_addr_t *mask, const in6_addr_t *gateway,
     82      0    stevel     const in6_addr_t *src_addr, const in6_addr_t *brd_addr,
     83  11042      Erik     const in6_addr_t *author, const in6_addr_t *ifaddr, const ill_t *ill,
     84  11042      Erik     mblk_t *mp, const tsol_gc_t *gc)
     85      0    stevel {
     86      0    stevel 	rt_msghdr_t	*rtm;
     87      0    stevel 	sin6_t		*sin6;
     88      0    stevel 	size_t		data_size, header_size;
     89      0    stevel 	uchar_t		*cp;
     90      0    stevel 	int		i;
     91      0    stevel 
     92      0    stevel 	ASSERT(mp != NULL);
     93      0    stevel 	/*
     94      0    stevel 	 * First find the type of the message
     95      0    stevel 	 * and its length.
     96      0    stevel 	 */
     97      0    stevel 	header_size = rts_header_msg_size(type);
     98      0    stevel 	/*
     99      0    stevel 	 * Now find the size of the data
    100      0    stevel 	 * that follows the message header.
    101      0    stevel 	 */
    102  11042      Erik 	data_size = rts_data_msg_size(rtm_addrs, AF_INET6, gc != NULL ? 1 : 0);
    103      0    stevel 
    104      0    stevel 	rtm = (rt_msghdr_t *)mp->b_rptr;
    105      0    stevel 	mp->b_wptr = &mp->b_rptr[header_size];
    106      0    stevel 	cp = mp->b_wptr;
    107      0    stevel 	bzero(cp, data_size);
    108      0    stevel 	for (i = 0; i < RTA_NUMBITS; i++) {
    109      0    stevel 		sin6 = (sin6_t *)cp;
    110      0    stevel 		switch (rtm_addrs & (1 << i)) {
    111      0    stevel 		case RTA_DST:
    112      0    stevel 			sin6->sin6_addr = *dst;
    113      0    stevel 			sin6->sin6_family = AF_INET6;
    114      0    stevel 			cp += sizeof (sin6_t);
    115      0    stevel 			break;
    116      0    stevel 		case RTA_GATEWAY:
    117      0    stevel 			sin6->sin6_addr = *gateway;
    118      0    stevel 			sin6->sin6_family = AF_INET6;
    119      0    stevel 			cp += sizeof (sin6_t);
    120      0    stevel 			break;
    121      0    stevel 		case RTA_NETMASK:
    122      0    stevel 			sin6->sin6_addr = *mask;
    123      0    stevel 			sin6->sin6_family = AF_INET6;
    124      0    stevel 			cp += sizeof (sin6_t);
    125      0    stevel 			break;
    126      0    stevel 		case RTA_IFA:
    127  11042      Erik 			sin6->sin6_addr = *ifaddr;
    128  11042      Erik 			sin6->sin6_family = AF_INET6;
    129  11042      Erik 			cp += sizeof (sin6_t);
    130  11042      Erik 			break;
    131      0    stevel 		case RTA_SRC:
    132      0    stevel 			sin6->sin6_addr = *src_addr;
    133      0    stevel 			sin6->sin6_family = AF_INET6;
    134      0    stevel 			cp += sizeof (sin6_t);
    135      0    stevel 			break;
    136      0    stevel 		case RTA_IFP:
    137  11042      Erik 			cp += ill_dls_info((struct sockaddr_dl *)cp, ill);
    138      0    stevel 			break;
    139      0    stevel 		case RTA_AUTHOR:
    140      0    stevel 			sin6->sin6_addr = *author;
    141      0    stevel 			sin6->sin6_family = AF_INET6;
    142      0    stevel 			cp += sizeof (sin6_t);
    143      0    stevel 			break;
    144      0    stevel 		case RTA_BRD:
    145      0    stevel 			/*
    146      0    stevel 			 * RTA_BRD is used typically to specify a point-to-point
    147      0    stevel 			 * destination address.
    148      0    stevel 			 */
    149      0    stevel 			sin6->sin6_addr = *brd_addr;
    150      0    stevel 			sin6->sin6_family = AF_INET6;
    151      0    stevel 			cp += sizeof (sin6_t);
    152      0    stevel 			break;
    153      0    stevel 		}
    154      0    stevel 	}
    155   1676       jpk 
    156   1676       jpk 	if (gc != NULL) {
    157   1676       jpk 		rtm_ext_t *rtm_ext;
    158   1676       jpk 		struct rtsa_s *rp_dst;
    159   1676       jpk 		tsol_rtsecattr_t *rsap;
    160   1676       jpk 
    161   1676       jpk 		ASSERT(gc->gc_grp != NULL);
    162   1676       jpk 		ASSERT(RW_LOCK_HELD(&gc->gc_grp->gcgrp_rwlock));
    163   1676       jpk 
    164   1676       jpk 		rtm_ext = (rtm_ext_t *)cp;
    165   1676       jpk 		rtm_ext->rtmex_type = RTMEX_GATEWAY_SECATTR;
    166  11042      Erik 		rtm_ext->rtmex_len = TSOL_RTSECATTR_SIZE(1);
    167   1676       jpk 
    168   1676       jpk 		rsap = (tsol_rtsecattr_t *)(rtm_ext + 1);
    169  11042      Erik 		rsap->rtsa_cnt = 1;
    170   1676       jpk 		rp_dst = rsap->rtsa_attr;
    171   1676       jpk 
    172  11042      Erik 		ASSERT(gc->gc_db != NULL);
    173  11042      Erik 		bcopy(&gc->gc_db->gcdb_attr, rp_dst, sizeof (*rp_dst));
    174   1676       jpk 		cp = (uchar_t *)rp_dst;
    175   1676       jpk 	}
    176   1676       jpk 
    177      0    stevel 	mp->b_wptr = cp;
    178      0    stevel 	mp->b_cont = NULL;
    179      0    stevel 	/*
    180      0    stevel 	 * set the fields that are common to
    181      0    stevel 	 * to different messages.
    182      0    stevel 	 */
    183      0    stevel 	rtm->rtm_msglen = (short)(header_size + data_size);
    184      0    stevel 	rtm->rtm_version = RTM_VERSION;
    185      0    stevel 	rtm->rtm_type = (uchar_t)type;
    186      0    stevel }
    187      0    stevel 
    188      0    stevel /*
    189      0    stevel  * This routine is called to generate a message to the routing
    190      0    stevel  * socket indicating that a redirect has occured, a routing lookup
    191      0    stevel  * has failed, or that a protocol has detected timeouts to a particular
    192      0    stevel  * destination. This routine is called for message types RTM_LOSING,
    193      0    stevel  * RTM_REDIRECT, and RTM_MISS.
    194      0    stevel  */
    195      0    stevel void
    196      0    stevel ip_rts_change_v6(int type, const in6_addr_t *dst_addr,
    197      0    stevel     const in6_addr_t *gw_addr, const in6_addr_t *net_mask,
    198      0    stevel     const in6_addr_t *source, const in6_addr_t *author,
    199   3448  dh155122     int flags, int error, int rtm_addrs, ip_stack_t *ipst)
    200      0    stevel {
    201      0    stevel 	rt_msghdr_t	*rtm;
    202      0    stevel 	mblk_t		*mp;
    203      0    stevel 
    204      0    stevel 	if (rtm_addrs == 0)
    205      0    stevel 		return;
    206   1676       jpk 	mp = rts_alloc_msg(type, rtm_addrs, AF_INET6, 0);
    207      0    stevel 	if (mp == NULL)
    208      0    stevel 		return;
    209      0    stevel 	rts_fill_msg_v6(type, rtm_addrs, dst_addr, net_mask, gw_addr, source,
    210  11042      Erik 	    &ipv6_all_zeros, &ipv6_all_zeros, author, NULL, mp, NULL);
    211      0    stevel 	rtm = (rt_msghdr_t *)mp->b_rptr;
    212      0    stevel 	rtm->rtm_flags = flags;
    213      0    stevel 	rtm->rtm_errno = error;
    214      0    stevel 	rtm->rtm_flags |= RTF_DONE;
    215      0    stevel 	rtm->rtm_addrs = rtm_addrs;
    216   8485     Peter 	rts_queue_input(mp, NULL, AF_INET6, RTSQ_ALL, ipst);
    217      0    stevel }
    218