/* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 1988, 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)rtsock.c 8.6 (Berkeley) 2/11/95 */ /* * This file contains routines that processes routing socket requests. */ #include #include #include #include #include #include #include #include #include #include #include #define _SUN_TPI_VERSION 2 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Fills the message with the given info. */ void rts_fill_msg_v6(int type, int rtm_addrs, const in6_addr_t *dst, const in6_addr_t *mask, const in6_addr_t *gateway, const in6_addr_t *src_addr, const in6_addr_t *brd_addr, const in6_addr_t *author, const in6_addr_t *ifaddr, const ill_t *ill, mblk_t *mp, const tsol_gc_t *gc) { rt_msghdr_t *rtm; sin6_t *sin6; size_t data_size, header_size; uchar_t *cp; int i; ASSERT(mp != NULL); /* * First find the type of the message * and its length. */ header_size = rts_header_msg_size(type); /* * Now find the size of the data * that follows the message header. */ data_size = rts_data_msg_size(rtm_addrs, AF_INET6, gc != NULL ? 1 : 0); rtm = (rt_msghdr_t *)mp->b_rptr; mp->b_wptr = &mp->b_rptr[header_size]; cp = mp->b_wptr; bzero(cp, data_size); for (i = 0; i < RTA_NUMBITS; i++) { sin6 = (sin6_t *)cp; switch (rtm_addrs & (1 << i)) { case RTA_DST: sin6->sin6_addr = *dst; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; case RTA_GATEWAY: sin6->sin6_addr = *gateway; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; case RTA_NETMASK: sin6->sin6_addr = *mask; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; case RTA_IFA: sin6->sin6_addr = *ifaddr; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; case RTA_SRC: sin6->sin6_addr = *src_addr; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; case RTA_IFP: cp += ill_dls_info((struct sockaddr_dl *)cp, ill); break; case RTA_AUTHOR: sin6->sin6_addr = *author; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; case RTA_BRD: /* * RTA_BRD is used typically to specify a point-to-point * destination address. */ sin6->sin6_addr = *brd_addr; sin6->sin6_family = AF_INET6; cp += sizeof (sin6_t); break; } } if (gc != NULL) { rtm_ext_t *rtm_ext; struct rtsa_s *rp_dst; tsol_rtsecattr_t *rsap; ASSERT(gc->gc_grp != NULL); ASSERT(RW_LOCK_HELD(&gc->gc_grp->gcgrp_rwlock)); rtm_ext = (rtm_ext_t *)cp; rtm_ext->rtmex_type = RTMEX_GATEWAY_SECATTR; rtm_ext->rtmex_len = TSOL_RTSECATTR_SIZE(1); rsap = (tsol_rtsecattr_t *)(rtm_ext + 1); rsap->rtsa_cnt = 1; rp_dst = rsap->rtsa_attr; ASSERT(gc->gc_db != NULL); bcopy(&gc->gc_db->gcdb_attr, rp_dst, sizeof (*rp_dst)); cp = (uchar_t *)rp_dst; } mp->b_wptr = cp; mp->b_cont = NULL; /* * set the fields that are common to * to different messages. */ rtm->rtm_msglen = (short)(header_size + data_size); rtm->rtm_version = RTM_VERSION; rtm->rtm_type = (uchar_t)type; } /* * This routine is called to generate a message to the routing * socket indicating that a redirect has occured, a routing lookup * has failed, or that a protocol has detected timeouts to a particular * destination. This routine is called for message types RTM_LOSING, * RTM_REDIRECT, and RTM_MISS. */ void ip_rts_change_v6(int type, const in6_addr_t *dst_addr, const in6_addr_t *gw_addr, const in6_addr_t *net_mask, const in6_addr_t *source, const in6_addr_t *author, int flags, int error, int rtm_addrs, ip_stack_t *ipst) { rt_msghdr_t *rtm; mblk_t *mp; if (rtm_addrs == 0) return; mp = rts_alloc_msg(type, rtm_addrs, AF_INET6, 0); if (mp == NULL) return; rts_fill_msg_v6(type, rtm_addrs, dst_addr, net_mask, gw_addr, source, &ipv6_all_zeros, &ipv6_all_zeros, author, NULL, mp, NULL); rtm = (rt_msghdr_t *)mp->b_rptr; rtm->rtm_flags = flags; rtm->rtm_errno = error; rtm->rtm_flags |= RTF_DONE; rtm->rtm_addrs = rtm_addrs; rts_queue_input(mp, NULL, AF_INET6, RTSQ_ALL, ipst); }