ecos-v3_0-branch: packages/net/tcpip/current/src/sys/netinet/ip

annotate packages/net/tcpip/current/src/sys/netinet/ip_output.c @ 2729:74dbf4c3f2e1 after-copyright-change-20090129

Update all copyright banners to reflect FSF ownership; fix and improve licence text.

author	jlarmour
date	Thu, 29 Jan 2009 17:47:46 +0000
parents	e0c0827131d1
children

rev	line source
97 ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	2 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	3 // sys/netinet/ip_output.c
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	4 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	5 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	6 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	7 //==========================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	8 // ####BSDALTCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	10 // Portions of this software may have been derived from OpenBSD
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	11 // or other sources, and if so are covered by the appropriate copyright
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	12 // and license included herein.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	13 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 208 diff changeset	14 // ####BSDALTCOPYRIGHTEND####
97 ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	15 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	16 //#####DESCRIPTIONBEGIN####
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	17 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	18 // Author(s): gthomas
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	19 // Contributors: gthomas
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	20 // Date: 2000-01-10
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	21 // Purpose:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	22 // Description:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	23 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	24 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	25 //####DESCRIPTIONEND####
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	26 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	27 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	28
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	29
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	30 /* $OpenBSD: ip_output.c,v 1.57 1999/12/10 08:55:23 angelos Exp $ */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	31 /* $NetBSD: ip_output.c,v 1.28 1996/02/13 23:43:07 christos Exp $ */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	32
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	33 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	34 * Copyright (c) 1982, 1986, 1988, 1990, 1993
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	35 * The Regents of the University of California. All rights reserved.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	36 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	37 * Redistribution and use in source and binary forms, with or without
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	38 * modification, are permitted provided that the following conditions
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	39 * are met:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	40 * 1. Redistributions of source code must retain the above copyright
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	41 * notice, this list of conditions and the following disclaimer.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	42 * 2. Redistributions in binary form must reproduce the above copyright
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	43 * notice, this list of conditions and the following disclaimer in the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	44 * documentation and/or other materials provided with the distribution.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	45 * 3. All advertising materials mentioning features or use of this software
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	46 * must display the following acknowledgement:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	47 * This product includes software developed by the University of
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	48 * California, Berkeley and its contributors.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	49 * 4. Neither the name of the University nor the names of its contributors
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	50 * may be used to endorse or promote products derived from this software
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	51 * without specific prior written permission.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	52 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	63 * SUCH DAMAGE.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	64 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	65 * @(#)ip_output.c 8.3 (Berkeley) 1/21/94
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	66 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	67
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	68 #include <sys/param.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	69 #include <sys/malloc.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	70 #include <sys/mbuf.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	71 #include <sys/errno.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	72 #include <sys/protosw.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	73 #include <sys/socket.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	74 #include <sys/socketvar.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	75 #ifndef __ECOS
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	76 #include <sys/systm.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	77 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	78 #include <sys/kernel.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	79 #ifndef __ECOS
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	80 #include <sys/proc.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	81
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	82 #include <vm/vm.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	83 #include <sys/proc.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	84 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	85
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	86 #include <net/if.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	87 #include <net/route.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	88
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	89 #include <netinet/in.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	90 #include <netinet/in_systm.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	91 #include <netinet/ip.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	92 #include <netinet/in_pcb.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	93 #include <netinet/in_var.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	94 #include <netinet/ip_var.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	95
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	96 #ifdef vax
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	97 #include <machine/mtpr.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	98 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	99
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	100 #include <machine/stdarg.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	101
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	102 #ifdef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	103 #include <netinet/ip_ah.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	104 #include <netinet/ip_esp.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	105 #include <netinet/udp.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	106 #include <netinet/tcp.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	107 #include <net/pfkeyv2.h>
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	108
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	109 #ifdef ENCDEBUG
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	110 #define DPRINTF(x) do { if (encdebug) printf x ; } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	111 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	112 #define DPRINTF(x)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	113 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	114
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	115 #ifndef offsetof
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	116 #define offsetof(s, e) ((int)&((s *)0)->e)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	117 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	118
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	119 extern u_int8_t get_sa_require __P((struct inpcb *));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	120
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	121 #endif /* IPSEC */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	122
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	123 static struct mbuf ip_insertoptions __P((struct mbuf , struct mbuf , int ));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	124 static void ip_mloopback
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	125 __P((struct ifnet , struct mbuf , struct sockaddr_in *));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	126 #if defined(IPFILTER) \|\| defined(IPFILTER_LKM)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	127 int (fr_checkp) __P((struct ip , int, struct ifnet , int, struct mbuf *));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	128 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	129
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	130 #ifdef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	131 extern int ipsec_auth_default_level;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	132 extern int ipsec_esp_trans_default_level;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	133 extern int ipsec_esp_network_default_level;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	134
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	135 extern int pfkeyv2_acquire(struct tdb *, int);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	136 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	137
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	138 #ifndef RAMDOM_IP_ID
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	139 u_short ip_id;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	140 #endif
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	141
97 ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	142 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	143 * IP output. The packet in mbuf chain m contains a skeletal IP
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	144 * header (with len, off, ttl, proto, tos, src, dst).
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	145 * The mbuf chain containing the packet will be freed.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	146 * The mbuf opt, if present, will not be freed.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	147 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	148 int
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	149 #if __STDC__
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	150 ip_output(struct mbuf *m0, ...)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	151 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	152 ip_output(m0, va_alist)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	153 struct mbuf *m0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	154 va_dcl
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	155 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	156 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	157 register struct ip ip, mhip;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	158 register struct ifnet *ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	159 register struct mbuf *m = m0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	160 register int hlen = sizeof (struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	161 int len, off, error = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	162 struct route iproute;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	163 struct sockaddr_in *dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	164 struct in_ifaddr *ia;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	165 struct mbuf *opt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	166 struct route *ro;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	167 int flags;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	168 struct ip_moptions *imo;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	169 va_list ap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	170 #ifdef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	171 union sockaddr_union sunion;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	172 struct mbuf *mp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	173 struct udphdr *udp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	174 struct tcphdr *tcp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	175 struct inpcb *inp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	176
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	177 struct route_enc re0, *re = &re0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	178 struct sockaddr_encap ddst, gw;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	179 u_int8_t sa_require, sa_have = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	180 struct tdb tdb, t;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	181 int s, ip6flag;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	182
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	183 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	184 struct ip6_hdr *ip6;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	185 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	186 #endif /* IPSEC */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	187
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	188 va_start(ap, m0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	189 opt = va_arg(ap, struct mbuf *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	190 ro = va_arg(ap, struct route *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	191 flags = va_arg(ap, int);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	192 imo = va_arg(ap, struct ip_moptions *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	193 #ifdef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	194 inp = va_arg(ap, struct inpcb *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	195 #endif /* IPSEC */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	196 va_end(ap);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	197
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	198 #ifdef DIAGNOSTIC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	199 if ((m->m_flags & M_PKTHDR) == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	200 panic("ip_output no HDR");
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	201 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	202 if (opt) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	203 m = ip_insertoptions(m, opt, &len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	204 hlen = len;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	205 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	206 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	207 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	208 * Fill in IP header.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	209 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	210 if ((flags & (IP_FORWARDING\|IP_RAWOUTPUT)) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	211 ip->ip_v = IPVERSION;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	212 ip->ip_off &= IP_DF;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	213 #ifdef RANDOM_IP_ID
97 ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	214 ip->ip_id = ip_randomid();
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	215 #else
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	216 ip->ip_id = htons(ip_id++);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 97 diff changeset	217 #endif
97 ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	218 ip->ip_hl = hlen >> 2;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	219 ipstat.ips_localout++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	220 } else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	221 hlen = ip->ip_hl << 2;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	222 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	223
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	224 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	225 * Route packet.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	226 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	227 if (ro == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	228 ro = &iproute;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	229 bzero((caddr_t)ro, sizeof (*ro));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	230 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	231 dst = satosin(&ro->ro_dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	232 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	233 * If there is a cached route,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	234 * check that it is to the same destination
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	235 * and is still up. If not, free it and try again.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	236 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	237 if (ro->ro_rt && ((ro->ro_rt->rt_flags & RTF_UP) == 0 \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	238 dst->sin_addr.s_addr != ip->ip_dst.s_addr)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	239 RTFREE(ro->ro_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	240 ro->ro_rt = (struct rtentry *)0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	241 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	242 if (ro->ro_rt == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	243 dst->sin_family = AF_INET;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	244 dst->sin_len = sizeof(*dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	245 dst->sin_addr = ip->ip_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	246 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	247 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	248 * If routing to interface only,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	249 * short circuit routing lookup.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	250 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	251 if (flags & IP_ROUTETOIF) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	252 if ((ia = ifatoia(ifa_ifwithdstaddr(sintosa(dst)))) == 0 &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	253 (ia = ifatoia(ifa_ifwithnet(sintosa(dst)))) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	254 ipstat.ips_noroute++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	255 error = ENETUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	256 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	257 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	258 ifp = ia->ia_ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	259 ip->ip_ttl = 1;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	260 } else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	261 if (ro->ro_rt == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	262 rtalloc(ro);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	263 if (ro->ro_rt == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	264 ipstat.ips_noroute++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	265 error = EHOSTUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	266 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	267 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	268 ia = ifatoia(ro->ro_rt->rt_ifa);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	269 ifp = ro->ro_rt->rt_ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	270 ro->ro_rt->rt_use++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	271 if (ro->ro_rt->rt_flags & RTF_GATEWAY)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	272 dst = satosin(ro->ro_rt->rt_gateway);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	273 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	274 if (IN_MULTICAST(ip->ip_dst.s_addr)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	275 struct in_multi *inm;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	276
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	277 m->m_flags \|= M_MCAST;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	278 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	279 * IP destination address is multicast. Make sure "dst"
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	280 * still points to the address in "ro". (It may have been
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	281 * changed to point to a gateway address, above.)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	282 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	283 dst = satosin(&ro->ro_dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	284 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	285 * See if the caller provided any multicast options
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	286 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	287 if (imo != NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	288 ip->ip_ttl = imo->imo_multicast_ttl;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	289 if (imo->imo_multicast_ifp != NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	290 ifp = imo->imo_multicast_ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	291 } else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	292 ip->ip_ttl = IP_DEFAULT_MULTICAST_TTL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	293 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	294 * Confirm that the outgoing interface supports multicast.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	295 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	296 if ((ifp->if_flags & IFF_MULTICAST) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	297 ipstat.ips_noroute++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	298 error = ENETUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	299 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	300 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	301 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	302 * If source address not specified yet, use address
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	303 * of outgoing interface.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	304 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	305 if (ip->ip_src.s_addr == INADDR_ANY) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	306 register struct in_ifaddr *ia;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	307
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	308 for (ia = in_ifaddr.tqh_first; ia; ia = ia->ia_list.tqe_next)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	309 if (ia->ia_ifp == ifp) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	310 ip->ip_src = ia->ia_addr.sin_addr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	311 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	312 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	313 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	314
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	315 IN_LOOKUP_MULTI(ip->ip_dst, ifp, inm);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	316 if (inm != NULL &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	317 (imo == NULL \|\| imo->imo_multicast_loop)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	318 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	319 * If we belong to the destination multicast group
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	320 * on the outgoing interface, and the caller did not
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	321 * forbid loopback, loop back a copy.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	322 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	323 ip_mloopback(ifp, m, dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	324 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	325 #ifdef MROUTING
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	326 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	327 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	328 * If we are acting as a multicast router, perform
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	329 * multicast forwarding as if the packet had just
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	330 * arrived on the interface to which we are about
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	331 * to send. The multicast forwarding function
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	332 * recursively calls this function, using the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	333 * IP_FORWARDING flag to prevent infinite recursion.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	334 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	335 * Multicasts that are looped back by ip_mloopback(),
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	336 * above, will be forwarded by the ip_input() routine,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	337 * if necessary.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	338 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	339 extern struct socket *ip_mrouter;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	340
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	341 if (ip_mrouter && (flags & IP_FORWARDING) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	342 if (ip_mforward(m, ifp) != 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	343 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	344 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	345 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	346 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	347 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	348 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	349 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	350 * Multicasts with a time-to-live of zero may be looped-
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	351 * back, above, but must not be transmitted on a network.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	352 * Also, multicasts addressed to the loopback interface
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	353 * are not sent -- the above call to ip_mloopback() will
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	354 * loop back a copy if this host actually belongs to the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	355 * destination group on the loopback interface.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	356 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	357 if (ip->ip_ttl == 0 \|\| (ifp->if_flags & IFF_LOOPBACK) != 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	358 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	359 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	360 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	361
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	362 goto sendit;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	363 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	364 #ifndef notdef
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	365 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	366 * If source address not specified yet, use address
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	367 * of outgoing interface.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	368 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	369 if (ip->ip_src.s_addr == INADDR_ANY)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	370 ip->ip_src = ia->ia_addr.sin_addr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	371 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	372 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	373 * Look for broadcast address and
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	374 * and verify user is allowed to send
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	375 * such a packet.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	376 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	377 if (in_broadcast(dst->sin_addr, ifp)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	378 if ((ifp->if_flags & IFF_BROADCAST) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	379 error = EADDRNOTAVAIL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	380 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	381 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	382 if ((flags & IP_ALLOWBROADCAST) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	383 error = EACCES;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	384 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	385 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	386 /* don't allow broadcast messages to be fragmented */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	387 if ((u_int16_t)ip->ip_len > ifp->if_mtu) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	388 error = EMSGSIZE;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	389 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	390 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	391 m->m_flags \|= M_BCAST;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	392 } else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	393 m->m_flags &= ~M_BCAST;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	394
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	395 sendit:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	396 #ifdef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	397 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	398 * Check if the packet needs encapsulation.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	399 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	400 if (!(flags & IP_ENCAPSULATED) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	401 (inp == NULL \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	402 inp->inp_seclevel[SL_AUTH] != IPSEC_LEVEL_BYPASS \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	403 inp->inp_seclevel[SL_ESP_TRANS] != IPSEC_LEVEL_BYPASS \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	404 inp->inp_seclevel[SL_ESP_NETWORK] != IPSEC_LEVEL_BYPASS)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	405 if (inp == NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	406 sa_require = get_sa_require(inp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	407 else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	408 sa_require = inp->inp_secrequire;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	409
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	410 bzero((caddr_t) re, sizeof(*re));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	411
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	412 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	413 * splnet is chosen over spltdb because we are not allowed to
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	414 * lower the level, and udp_output calls us in splnet().
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	415 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	416 s = splnet();
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	417
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	418 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	419 * Check if there was an outgoing SA bound to the flow
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	420 * from a transport protocol.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	421 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	422 if (inp && inp->inp_tdb &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	423 (inp->inp_tdb->tdb_dst.sin.sin_addr.s_addr == INADDR_ANY \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	424 !bcmp(&inp->inp_tdb->tdb_dst.sin.sin_addr,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	425 &ip->ip_dst, sizeof(ip->ip_dst)))) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	426 tdb = inp->inp_tdb;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	427 goto have_tdb;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	428 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	429
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	430 if (!ipsec_in_use) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	431 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	432 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	433 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	434
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	435 ddst = (struct sockaddr_encap *) &re->re_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	436 ddst->sen_family = PF_KEY;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	437 ddst->sen_len = SENT_IP4_LEN;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	438 ddst->sen_type = SENT_IP4;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	439 ddst->sen_ip_src = ip->ip_src;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	440 ddst->sen_ip_dst = ip->ip_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	441 ddst->sen_proto = ip->ip_p;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	442
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	443 switch (ip->ip_p) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	444 case IPPROTO_UDP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	445 if (m->m_len < hlen + 2 * sizeof(u_int16_t)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	446 if ((m = m_pullup(m, hlen + 2 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	447 sizeof(u_int16_t))) == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	448 return ENOBUFS;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	449 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	450 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	451 udp = (struct udphdr ) (mtod(m, u_char ) + hlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	452 ddst->sen_sport = ntohs(udp->uh_sport);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	453 ddst->sen_dport = ntohs(udp->uh_dport);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	454 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	455
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	456 case IPPROTO_TCP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	457 if (m->m_len < hlen + 2 * sizeof(u_int16_t)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	458 if ((m = m_pullup(m, hlen + 2 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	459 sizeof(u_int16_t))) == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	460 return ENOBUFS;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	461 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	462 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	463 tcp = (struct tcphdr ) (mtod(m, u_char ) + hlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	464 ddst->sen_sport = ntohs(tcp->th_sport);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	465 ddst->sen_dport = ntohs(tcp->th_dport);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	466 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	467
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	468 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	469 ddst->sen_sport = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	470 ddst->sen_dport = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	471 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	472
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	473 rtalloc((struct route *) re);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	474 if (re->re_rt == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	475 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	476 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	477 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	478
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	479 gw = (struct sockaddr_encap *) (re->re_rt->rt_gateway);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	480
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	481 /* Sanity check */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	482 if (gw == NULL \|\| ((gw->sen_type != SENT_IPSP) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	483 (gw->sen_type != SENT_IPSP6))) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	484 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	485 DPRINTF(("ip_output(): no gw or gw data not IPSP\n"));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	486
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	487 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	488 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	489 error = EHOSTUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	490 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	491 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	492 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	493
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	494 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	495 * There might be a specific route, that tells us to avoid
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	496 * doing IPsec; this is useful for specific routes that we
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	497 * don't want to have IPsec applied on, like the key
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	498 * management ports.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	499 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	500
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	501 if ((gw != NULL) && (gw->sen_ipsp_sproto == 0) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	502 (gw->sen_ipsp_spi == 0)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	503 if ((gw->sen_family == AF_INET) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	504 (gw->sen_ipsp_dst.s_addr == 0)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	505 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	506 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	507 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	508
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	509 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	510 if ((gw->sen_family == AF_INET6) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	511 IN6_IS_ADDR_UNSPECIFIED(&gw->sen_ipsp6_dst)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	512 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	513 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	514 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	515 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	516 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	517
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	518 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	519 * At this point we have an IPSP "gateway" (tunnel) spec.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	520 * Use the destination of the tunnel and the SPI to
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	521 * look up the necessary Tunnel Control Block. Look it up,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	522 * and then pass it, along with the packet and the gw,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	523 * to the appropriate transformation.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	524 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	525 bzero(&sunion, sizeof(sunion));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	526
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	527 if (gw->sen_type == SENT_IPSP) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	528 sunion.sin.sin_family = AF_INET;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	529 sunion.sin.sin_len = sizeof(struct sockaddr_in);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	530 sunion.sin.sin_addr = gw->sen_ipsp_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	531 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	532 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	533 if (gw->sen_type == SENT_IPSP6) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	534 sunion.sin6.sin6_family = AF_INET6;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	535 sunion.sin6.sin6_len = sizeof(struct sockaddr_in6);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	536 sunion.sin6.sin6_addr = gw->sen_ipsp6_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	537 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	538 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	539
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	540 tdb = (struct tdb *) gettdb(gw->sen_ipsp_spi, &sunion,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	541 gw->sen_ipsp_sproto);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	542
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	543 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	544 * For VPNs a route with a reserved SPI is used to
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	545 * indicate the need for an SA when none is established.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	546 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	547 if (((ntohl(gw->sen_ipsp_spi) == SPI_LOCAL_USE) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	548 (gw->sen_type == SENT_IPSP)) \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	549 ((ntohl(gw->sen_ipsp6_spi) == SPI_LOCAL_USE) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	550 (gw->sen_type == SENT_IPSP6))) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	551 if (tdb == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	552 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	553 * XXX We should construct a TDB from system
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	554 * default (which should be tunable via sysctl).
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	555 * For now, drop packet and ignore SPD entry.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	556 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	557 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	558 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	559 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	560 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	561 if (tdb->tdb_authalgxform)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	562 sa_require = NOTIFY_SATYPE_AUTH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	563 if (tdb->tdb_encalgxform)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	564 sa_require \|= NOTIFY_SATYPE_CONF;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	565 if (tdb->tdb_flags & TDBF_TUNNELING)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	566 sa_require \|= NOTIFY_SATYPE_TUNNEL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	567 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	568
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	569 /* PF_KEYv2 notification message */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	570 if (tdb && tdb->tdb_satype != SADB_X_SATYPE_BYPASS)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	571 if ((error = pfkeyv2_acquire(tdb, 0)) != 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	572 return error;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	573
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	574 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	575
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	576 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	577 * When sa_require is set, the packet will be dropped
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	578 * at no_encap.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	579 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	580 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	581 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	582
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	583 have_tdb:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	584
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	585 ip->ip_len = htons((u_short) ip->ip_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	586 ip->ip_off = htons((u_short) ip->ip_off);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	587 ip->ip_sum = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	588
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	589 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	590 * Now we check if this tdb has all the transforms which
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	591 * are requried by the socket or our default policy.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	592 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	593 SPI_CHAIN_ATTRIB(sa_have, tdb_onext, tdb);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	594
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	595 if (sa_require & ~sa_have)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	596 goto no_encap;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	597
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	598 if (tdb == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	599 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	600 if (gw->sen_type == SENT_IPSP)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	601 DPRINTF(("ip_output(): non-existant TDB for SA %s/%08x/%u\n", inet_ntoa4(gw->sen_ipsp_dst), ntohl(gw->sen_ipsp_spi), gw->sen_ipsp_sproto));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	602 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	603 else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	604 DPRINTF(("ip_output(): non-existant TDB for SA %s/%08x/%u\n", inet6_ntoa4(gw->sen_ipsp6_dst), ntohl(gw->sen_ipsp6_spi), gw->sen_ipsp6_sproto));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	605 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	606
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	607 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	608 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	609 error = EHOSTUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	610 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	611 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	612 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	613
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	614 for (t = tdb; t != NULL; t = t->tdb_onext)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	615 if ((t->tdb_sproto == IPPROTO_ESP && !esp_enable) \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	616 (t->tdb_sproto == IPPROTO_AH && !ah_enable)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	617 DPRINTF(("ip_output(): IPSec outbound packet dropped due to policy\n"));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	618
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	619 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	620 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	621 error = EHOSTUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	622 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	623 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	624 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	625
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	626 while (tdb && tdb->tdb_xform) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	627 /* Check if the SPI is invalid */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	628 if (tdb->tdb_flags & TDBF_INVALID) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	629 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	630 DPRINTF(("ip_output(): attempt to use invalid SA %s/%08x/%u\n", ipsp_address(tdb->tdb_dst), ntohl(tdb->tdb_spi), tdb->tdb_sproto));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	631 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	632 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	633 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	634 return ENXIO;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	635 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	636
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	637 #ifndef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	638 /* Sanity check */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	639 if (tdb->tdb_dst.sa.sa_family != AF_INET) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	640 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	641 DPRINTF(("ip_output(): attempt to use SA %s/%08x/%u for protocol family %d\n", ipsp_address(tdb->tdb_dst), ntohl(tdb->tdb_spi), tdb->tdb_sproto, tdb->tdb_dst.sa.sa_family));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	642 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	643 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	644 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	645 return ENXIO;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	646 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	647 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	648
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	649 /* Register first use, setup expiration timer */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	650 if (tdb->tdb_first_use == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	651 tdb->tdb_first_use = time.tv_sec;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	652 tdb_expiration(tdb, TDBEXP_TIMEOUT);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	653 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	654
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	655 /* Check for tunneling */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	656 if (((tdb->tdb_dst.sa.sa_family == AF_INET) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	657 (tdb->tdb_dst.sin.sin_addr.s_addr !=
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	658 INADDR_ANY) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	659 (tdb->tdb_dst.sin.sin_addr.s_addr !=
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	660 ip->ip_dst.s_addr)) \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	661 (tdb->tdb_dst.sa.sa_family == AF_INET6) \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	662 ((tdb->tdb_flags & TDBF_TUNNELING) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	663 (tdb->tdb_xform->xf_type != XF_IP4))) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	664 /* Fix length and checksum */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	665 ip->ip_len = htons(m->m_pkthdr.len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	666 ip->ip_sum = in_cksum(m, ip->ip_hl << 2);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	667 error = ipe4_output(m, tdb, &mp,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	668 ip->ip_hl << 2,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	669 offsetof(struct ip, ip_p));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	670 if (mp == NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	671 error = EFAULT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	672 if (error) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	673 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	674 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	675 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	676 return error;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	677 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	678 if (tdb->tdb_dst.sa.sa_family == AF_INET)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	679 ip6flag = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	680 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	681 if (tdb->tdb_dst.sa.sa_family == AF_INET6)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	682 ip6flag = 1;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	683 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	684 m = mp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	685 mp = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	686 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	687
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	688 if ((tdb->tdb_xform->xf_type == XF_IP4) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	689 (tdb->tdb_dst.sa.sa_family == AF_INET)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	690 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	691 ip->ip_len = htons(m->m_pkthdr.len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	692 ip->ip_sum = in_cksum(m, ip->ip_hl << 2);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	693 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	694
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	695 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	696 if ((tdb->tdb_xform->xf_type == XF_IP4) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	697 (tdb->tdb_dst.sa.sa_family == AF_INET6)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	698 ip6 = mtod(m, struct ip6_hdr *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	699 ip6->ip6_plen = htons(m->m_pkthdr.len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	700 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	701 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	702
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	703 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	704 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	705 * This assumes that there is only just an IPv6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	706 * header prepended.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	707 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	708 if (ip6flag)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	709 error = (*(tdb->tdb_xform->xf_output))(m, tdb, &mp, sizeof(struct ip6_hdr), offsetof(struct ip6_hdr, ip6_nxt));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	710 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	711
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	712 if (!ip6flag)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	713 error = (*(tdb->tdb_xform->xf_output))(m, tdb, &mp, ip->ip_hl << 2, offsetof(struct ip, ip_p));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	714 if (!error && mp == NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	715 error = EFAULT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	716 if (error) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	717 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	718 if (mp != NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	719 m_freem(mp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	720 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	721 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	722 return error;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	723 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	724
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	725 m = mp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	726 mp = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	727
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	728 if (!ip6flag) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	729 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	730 ip->ip_len = htons(m->m_pkthdr.len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	731 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	732
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	733 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	734 if (ip6flag) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	735 ip6 = mtod(m, struct ip6_hdr *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	736 ip6->ip6_plen = htons(m->m_pkthdr.len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	737 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	738 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	739 tdb = tdb->tdb_onext;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	740 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	741 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	742
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	743 if (!ip6flag)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	744 ip->ip_sum = in_cksum(m, ip->ip_hl << 2);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	745
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	746 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	747 * At this point, m is pointing to an mbuf chain with the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	748 * processed packet. Call ourselves recursively, but
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	749 * bypass the encap code.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	750 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	751 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	752 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	753
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	754 if (!ip6flag) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	755 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	756 NTOHS(ip->ip_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	757 NTOHS(ip->ip_off);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	758
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	759 return ip_output(m, NULL, NULL,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	760 IP_ENCAPSULATED \| IP_RAWOUTPUT,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	761 NULL, NULL);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	762 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	763
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	764 #ifdef INET6
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	765 if (ip6flag) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	766 ip6 = mtod(m, struct ip6_hdr *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	767 NTOHS(ip6->ip6_plen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	768
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	769 /* Naturally, ip6_output() has to honor those two flags */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	770 return ip6_output(m, NULL, NULL,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	771 IP_ENCAPSULATED \| IP_RAWOUTPUT,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	772 NULL, NULL);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	773 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	774 #endif /* INET6 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	775
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	776 no_encap:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	777 /* This is for possible future use, don't move or delete */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	778 if (re->re_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	779 RTFREE(re->re_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	780 /* No IPSec processing though it was required, drop packet */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	781 if (sa_require) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	782 error = EHOSTUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	783 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	784 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	785 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	786 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	787 #endif /* IPSEC */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	788
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	789 #if defined(IPFILTER) \|\| defined(IPFILTER_LKM)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	790 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	791 * looks like most checking has been done now...do a filter check
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	792 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	793 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	794 struct mbuf *m0 = m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	795 if (fr_checkp && (*fr_checkp)(ip, hlen, ifp, 1, &m0)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	796 error = EHOSTUNREACH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	797 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	798 } else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	799 ip = mtod(m = m0, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	800 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	801 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	802 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	803 * If small enough for interface, can just send directly.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	804 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	805 if ((u_int16_t)ip->ip_len <= ifp->if_mtu) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	806 ip->ip_len = htons((u_int16_t)ip->ip_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	807 ip->ip_off = htons((u_int16_t)ip->ip_off);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	808 ip->ip_sum = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	809 ip->ip_sum = in_cksum(m, hlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	810 error = (*ifp->if_output)(ifp, m, sintosa(dst), ro->ro_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	811 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	812 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	813
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	814 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	815 * Too large for interface; fragment if possible.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	816 * Must be able to put at least 8 bytes per fragment.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	817 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	818 #if 0
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	819 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	820 * If IPsec packet is too big for the interface, try fragment it.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	821 * XXX This really is a quickhack. May be inappropriate.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	822 * XXX fails if somebody is sending AH'ed packet, with:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	823 * sizeof(packet without AH) < mtu < sizeof(packet with AH)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	824 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	825 if (sab && ip->ip_p != IPPROTO_AH && (flags & IP_FORWARDING) == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	826 ip->ip_off &= ~IP_DF;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	827 #endif /IPSEC/
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	828 if (ip->ip_off & IP_DF) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	829 error = EMSGSIZE;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	830 ipstat.ips_cantfrag++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	831 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	832 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	833 len = (ifp->if_mtu - hlen) &~ 7;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	834 if (len < 8) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	835 error = EMSGSIZE;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	836 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	837 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	838
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	839 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	840 int mhlen, firstlen = len;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	841 struct mbuf **mnext = &m->m_nextpkt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	842
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	843 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	844 * Loop through length of segment after first fragment,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	845 * make new header and copy data of each part and link onto chain.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	846 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	847 m0 = m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	848 mhlen = sizeof (struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	849 for (off = hlen + len; off < (u_int16_t)ip->ip_len; off += len) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	850 MGETHDR(m, M_DONTWAIT, MT_HEADER);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	851 if (m == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	852 error = ENOBUFS;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	853 ipstat.ips_odropped++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	854 goto sendorfree;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	855 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	856 *mnext = m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	857 mnext = &m->m_nextpkt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	858 m->m_data += max_linkhdr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	859 mhip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	860 mhip = ip;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	861 if (hlen > sizeof (struct ip)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	862 mhlen = ip_optcopy(ip, mhip) + sizeof (struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	863 mhip->ip_hl = mhlen >> 2;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	864 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	865 m->m_len = mhlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	866 mhip->ip_off = ((off - hlen) >> 3) + (ip->ip_off & ~IP_MF);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	867 if (ip->ip_off & IP_MF)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	868 mhip->ip_off \|= IP_MF;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	869 if (off + len >= (u_int16_t)ip->ip_len)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	870 len = (u_int16_t)ip->ip_len - off;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	871 else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	872 mhip->ip_off \|= IP_MF;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	873 mhip->ip_len = htons((u_int16_t)(len + mhlen));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	874 m->m_next = m_copy(m0, off, len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	875 if (m->m_next == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	876 error = ENOBUFS; /* ??? */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	877 ipstat.ips_odropped++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	878 goto sendorfree;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	879 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	880 m->m_pkthdr.len = mhlen + len;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	881 m->m_pkthdr.rcvif = (struct ifnet *)0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	882 mhip->ip_off = htons((u_int16_t)mhip->ip_off);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	883 mhip->ip_sum = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	884 mhip->ip_sum = in_cksum(m, mhlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	885 ipstat.ips_ofragments++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	886 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	887 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	888 * Update first fragment by trimming what's been copied out
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	889 * and updating header, then send each fragment (in order).
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	890 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	891 m = m0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	892 m_adj(m, hlen + firstlen - (u_int16_t)ip->ip_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	893 m->m_pkthdr.len = hlen + firstlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	894 ip->ip_len = htons((u_int16_t)m->m_pkthdr.len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	895 ip->ip_off = htons((u_int16_t)(ip->ip_off \| IP_MF));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	896 ip->ip_sum = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	897 ip->ip_sum = in_cksum(m, hlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	898 sendorfree:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	899 for (m = m0; m; m = m0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	900 m0 = m->m_nextpkt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	901 m->m_nextpkt = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	902 if (error == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	903 error = (*ifp->if_output)(ifp, m, sintosa(dst),
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	904 ro->ro_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	905 else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	906 m_freem(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	907 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	908
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	909 if (error == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	910 ipstat.ips_fragmented++;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	911 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	912 done:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	913 if (ro == &iproute && (flags & IP_ROUTETOIF) == 0 && ro->ro_rt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	914 RTFREE(ro->ro_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	915 return (error);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	916 bad:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	917 m_freem(m0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	918 goto done;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	919 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	920
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	921 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	922 * Insert IP options into preformed packet.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	923 * Adjust IP destination as required for IP source routing,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	924 * as indicated by a non-zero in_addr at the start of the options.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	925 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	926 static struct mbuf *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	927 ip_insertoptions(m, opt, phlen)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	928 register struct mbuf *m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	929 struct mbuf *opt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	930 int *phlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	931 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	932 register struct ipoption p = mtod(opt, struct ipoption );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	933 struct mbuf *n;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	934 register struct ip ip = mtod(m, struct ip );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	935 unsigned optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	936
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	937 optlen = opt->m_len - sizeof(p->ipopt_dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	938 if (optlen + (u_int16_t)ip->ip_len > IP_MAXPACKET)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	939 return (m); /* XXX should fail */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	940 if (p->ipopt_dst.s_addr)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	941 ip->ip_dst = p->ipopt_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	942 if (m->m_flags & M_EXT \|\| m->m_data - optlen < m->m_pktdat) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	943 MGETHDR(n, M_DONTWAIT, MT_HEADER);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	944 if (n == 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	945 return (m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	946 n->m_pkthdr.len = m->m_pkthdr.len + optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	947 m->m_len -= sizeof(struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	948 m->m_data += sizeof(struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	949 n->m_next = m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	950 m = n;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	951 m->m_len = optlen + sizeof(struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	952 m->m_data += max_linkhdr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	953 bcopy((caddr_t)ip, mtod(m, caddr_t), sizeof(struct ip));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	954 } else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	955 m->m_data -= optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	956 m->m_len += optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	957 m->m_pkthdr.len += optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	958 ovbcopy((caddr_t)ip, mtod(m, caddr_t), sizeof(struct ip));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	959 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	960 ip = mtod(m, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	961 bcopy((caddr_t)p->ipopt_list, (caddr_t)(ip + 1), (unsigned)optlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	962 *phlen = sizeof(struct ip) + optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	963 ip->ip_len += optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	964 return (m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	965 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	966
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	967 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	968 * Copy options from ip to jp,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	969 * omitting those not copied during fragmentation.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	970 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	971 int
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	972 ip_optcopy(ip, jp)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	973 struct ip ip, jp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	974 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	975 register u_char cp, dp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	976 int opt, optlen, cnt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	977
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	978 cp = (u_char *)(ip + 1);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	979 dp = (u_char *)(jp + 1);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	980 cnt = (ip->ip_hl << 2) - sizeof (struct ip);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	981 for (; cnt > 0; cnt -= optlen, cp += optlen) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	982 opt = cp[0];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	983 if (opt == IPOPT_EOL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	984 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	985 if (opt == IPOPT_NOP) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	986 /* Preserve for IP mcast tunnel's LSRR alignment. */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	987 *dp++ = IPOPT_NOP;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	988 optlen = 1;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	989 continue;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	990 } else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	991 optlen = cp[IPOPT_OLEN];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	992 /* bogus lengths should have been caught by ip_dooptions */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	993 if (optlen > cnt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	994 optlen = cnt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	995 if (IPOPT_COPIED(opt)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	996 bcopy((caddr_t)cp, (caddr_t)dp, (unsigned)optlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	997 dp += optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	998 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	999 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1000 for (optlen = dp - (u_char *)(jp+1); optlen & 0x3; optlen++)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1001 *dp++ = IPOPT_EOL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1002 return (optlen);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1003 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1004
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1005 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1006 * IP socket option processing.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1007 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1008 int
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1009 ip_ctloutput(op, so, level, optname, mp)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1010 int op;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1011 struct socket *so;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1012 int level, optname;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1013 struct mbuf **mp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1014 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1015 register struct inpcb *inp = sotoinpcb(so);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1016 register struct mbuf m = mp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1017 register int optval = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1018 #ifdef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1019 struct proc p = curproc; / XXX */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1020 struct tdb *tdb;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1021 struct tdb_ident *tdbip, tdbi;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1022 int s;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1023 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1024 int error = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1025
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1026 if (level != IPPROTO_IP) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1027 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1028 if (op == PRCO_SETOPT && *mp)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1029 (void) m_free(*mp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1030 } else switch (op) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1031
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1032 case PRCO_SETOPT:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1033 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1034 case IP_OPTIONS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1035 #ifdef notyet
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1036 case IP_RETOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1037 return (ip_pcbopts(optname, &inp->inp_options, m));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1038 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1039 return (ip_pcbopts(&inp->inp_options, m));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1040 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1041
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1042 case IP_TOS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1043 case IP_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1044 case IP_RECVOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1045 case IP_RECVRETOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1046 case IP_RECVDSTADDR:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1047 if (m == NULL \|\| m->m_len != sizeof(int))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1048 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1049 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1050 optval = mtod(m, int );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1051 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1052
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1053 case IP_TOS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1054 inp->inp_ip.ip_tos = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1055 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1056
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1057 case IP_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1058 inp->inp_ip.ip_ttl = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1059 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1060 #define OPTSET(bit) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1061 if (optval) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1062 inp->inp_flags \|= bit; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1063 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1064 inp->inp_flags &= ~bit;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1065
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1066 case IP_RECVOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1067 OPTSET(INP_RECVOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1068 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1069
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1070 case IP_RECVRETOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1071 OPTSET(INP_RECVRETOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1072 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1073
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1074 case IP_RECVDSTADDR:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1075 OPTSET(INP_RECVDSTADDR);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1076 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1077 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1078 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1079 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1080 #undef OPTSET
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1081
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1082 case IP_MULTICAST_IF:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1083 case IP_MULTICAST_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1084 case IP_MULTICAST_LOOP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1085 case IP_ADD_MEMBERSHIP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1086 case IP_DROP_MEMBERSHIP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1087 error = ip_setmoptions(optname, &inp->inp_moptions, m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1088 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1089
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1090 case IP_PORTRANGE:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1091 if (m == 0 \|\| m->m_len != sizeof(int))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1092 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1093 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1094 optval = mtod(m, int );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1095
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1096 switch (optval) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1097
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1098 case IP_PORTRANGE_DEFAULT:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1099 inp->inp_flags &= ~(INP_LOWPORT);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1100 inp->inp_flags &= ~(INP_HIGHPORT);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1101 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1102
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1103 case IP_PORTRANGE_HIGH:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1104 inp->inp_flags &= ~(INP_LOWPORT);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1105 inp->inp_flags \|= INP_HIGHPORT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1106 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1107
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1108 case IP_PORTRANGE_LOW:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1109 inp->inp_flags &= ~(INP_HIGHPORT);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1110 inp->inp_flags \|= INP_LOWPORT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1111 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1112
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1113 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1114
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1115 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1116 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1117 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1118 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1119 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1120 case IPSEC_OUTSA:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1121 #ifndef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1122 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1123 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1124 s = spltdb();
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1125 if (m == 0 \|\| m->m_len != sizeof(struct tdb_ident)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1126 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1127 } else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1128 tdbip = mtod(m, struct tdb_ident *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1129 tdb = gettdb(tdbip->spi, &tdbip->dst,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1130 tdbip->proto);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1131 if (tdb == NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1132 error = ESRCH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1133 else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1134 tdb_add_inp(tdb, inp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1135 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1136 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1137 #endif /* IPSEC */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1138 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1139
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1140 case IP_AUTH_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1141 case IP_ESP_TRANS_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1142 case IP_ESP_NETWORK_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1143 #ifndef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1144 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1145 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1146 if (m == 0 \|\| m->m_len != sizeof(int)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1147 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1148 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1149 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1150 optval = mtod(m, u_char );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1151
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1152 if (optval < IPSEC_LEVEL_BYPASS \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1153 optval > IPSEC_LEVEL_UNIQUE) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1154 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1155 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1156 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1157
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1158 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1159 case IP_AUTH_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1160 if (optval < ipsec_auth_default_level &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1161 suser(p->p_ucred, &p->p_acflag)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1162 error = EACCES;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1163 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1164 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1165 inp->inp_seclevel[SL_AUTH] = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1166 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1167
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1168 case IP_ESP_TRANS_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1169 if (optval < ipsec_esp_trans_default_level &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1170 suser(p->p_ucred, &p->p_acflag)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1171 error = EACCES;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1172 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1173 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1174 inp->inp_seclevel[SL_ESP_TRANS] = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1175 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1176
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1177 case IP_ESP_NETWORK_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1178 if (optval < ipsec_esp_network_default_level &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1179 suser(p->p_ucred, &p->p_acflag)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1180 error = EACCES;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1181 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1182 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1183 inp->inp_seclevel[SL_ESP_NETWORK] = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1184 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1185 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1186 if (!error)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1187 inp->inp_secrequire = get_sa_require(inp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1188 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1189 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1190
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1191 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1192 error = ENOPROTOOPT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1193 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1194 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1195 if (m)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1196 (void)m_free(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1197 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1198
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1199 case PRCO_GETOPT:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1200 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1201 case IP_OPTIONS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1202 case IP_RETOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1203 *mp = m = m_get(M_WAIT, MT_SOOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1204 if (inp->inp_options) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1205 m->m_len = inp->inp_options->m_len;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1206 bcopy(mtod(inp->inp_options, caddr_t),
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1207 mtod(m, caddr_t), (unsigned)m->m_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1208 } else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1209 m->m_len = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1210 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1211
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1212 case IP_TOS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1213 case IP_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1214 case IP_RECVOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1215 case IP_RECVRETOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1216 case IP_RECVDSTADDR:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1217 *mp = m = m_get(M_WAIT, MT_SOOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1218 m->m_len = sizeof(int);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1219 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1220
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1221 case IP_TOS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1222 optval = inp->inp_ip.ip_tos;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1223 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1224
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1225 case IP_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1226 optval = inp->inp_ip.ip_ttl;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1227 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1228
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1229 #define OPTBIT(bit) (inp->inp_flags & bit ? 1 : 0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1230
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1231 case IP_RECVOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1232 optval = OPTBIT(INP_RECVOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1233 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1234
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1235 case IP_RECVRETOPTS:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1236 optval = OPTBIT(INP_RECVRETOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1237 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1238
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1239 case IP_RECVDSTADDR:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1240 optval = OPTBIT(INP_RECVDSTADDR);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1241 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1242 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1243 mtod(m, int ) = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1244 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1245
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1246 case IP_MULTICAST_IF:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1247 case IP_MULTICAST_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1248 case IP_MULTICAST_LOOP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1249 case IP_ADD_MEMBERSHIP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1250 case IP_DROP_MEMBERSHIP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1251 error = ip_getmoptions(optname, inp->inp_moptions, mp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1252 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1253
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1254 case IP_PORTRANGE:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1255 *mp = m = m_get(M_WAIT, MT_SOOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1256 m->m_len = sizeof(int);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1257
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1258 if (inp->inp_flags & INP_HIGHPORT)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1259 optval = IP_PORTRANGE_HIGH;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1260 else if (inp->inp_flags & INP_LOWPORT)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1261 optval = IP_PORTRANGE_LOW;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1262 else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1263 optval = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1264
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1265 mtod(m, int ) = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1266 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1267
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1268 case IPSEC_OUTSA:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1269 #ifndef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1270 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1271 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1272 s = spltdb();
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1273 if (inp->inp_tdb == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1274 error = ENOENT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1275 } else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1276 tdbi.spi = inp->inp_tdb->tdb_spi;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1277 tdbi.dst = inp->inp_tdb->tdb_dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1278 tdbi.proto = inp->inp_tdb->tdb_sproto;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1279 *mp = m = m_get(M_WAIT, MT_SOOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1280 m->m_len = sizeof(tdbi);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1281 bcopy((caddr_t)&tdbi, mtod(m, caddr_t),
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1282 (unsigned)m->m_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1283 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1284 splx(s);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1285 #endif /* IPSEC */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1286 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1287
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1288 case IP_AUTH_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1289 case IP_ESP_TRANS_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1290 case IP_ESP_NETWORK_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1291 #ifndef IPSEC
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1292 mtod(m, int ) = IPSEC_LEVEL_NONE;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1293 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1294 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1295 case IP_AUTH_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1296 optval = inp->inp_seclevel[SL_AUTH];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1297 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1298
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1299 case IP_ESP_TRANS_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1300 optval = inp->inp_seclevel[SL_ESP_TRANS];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1301 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1302
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1303 case IP_ESP_NETWORK_LEVEL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1304 optval = inp->inp_seclevel[SL_ESP_NETWORK];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1305 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1306 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1307 mtod(m, int ) = optval;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1308 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1309 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1310 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1311 error = ENOPROTOOPT;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1312 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1313 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1314 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1315 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1316 return (error);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1317 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1318
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1319 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1320 * Set up IP options in pcb for insertion in output packets.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1321 * Store in mbuf with pointer in pcbopt, adding pseudo-option
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1322 * with destination address if source routed.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1323 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1324 int
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1325 #ifdef notyet
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1326 ip_pcbopts(optname, pcbopt, m)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1327 int optname;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1328 #else
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1329 ip_pcbopts(pcbopt, m)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1330 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1331 struct mbuf **pcbopt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1332 register struct mbuf *m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1333 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1334 register int cnt, optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1335 register u_char *cp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1336 u_char opt;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1337
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1338 /* turn off any old options */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1339 if (*pcbopt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1340 (void)m_free(*pcbopt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1341 *pcbopt = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1342 if (m == (struct mbuf *)0 \|\| m->m_len == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1343 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1344 * Only turning off any previous options.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1345 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1346 if (m)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1347 (void)m_free(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1348 return (0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1349 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1350
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1351 #ifndef vax
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1352 if (m->m_len % sizeof(int32_t))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1353 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1354 #endif
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1355 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1356 * IP first-hop destination address will be stored before
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1357 * actual options; move other options back
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1358 * and clear it when none present.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1359 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1360 if (m->m_data + m->m_len + sizeof(struct in_addr) >= &m->m_dat[MLEN])
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1361 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1362 cnt = m->m_len;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1363 m->m_len += sizeof(struct in_addr);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1364 cp = mtod(m, u_char *) + sizeof(struct in_addr);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1365 ovbcopy(mtod(m, caddr_t), (caddr_t)cp, (unsigned)cnt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1366 bzero(mtod(m, caddr_t), sizeof(struct in_addr));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1367
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1368 for (; cnt > 0; cnt -= optlen, cp += optlen) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1369 opt = cp[IPOPT_OPTVAL];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1370 if (opt == IPOPT_EOL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1371 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1372 if (opt == IPOPT_NOP)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1373 optlen = 1;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1374 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1375 optlen = cp[IPOPT_OLEN];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1376 if (optlen <= IPOPT_OLEN \|\| optlen > cnt)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1377 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1378 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1379 switch (opt) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1380
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1381 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1382 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1383
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1384 case IPOPT_LSRR:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1385 case IPOPT_SSRR:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1386 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1387 * user process specifies route as:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1388 * ->A->B->C->D
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1389 * D must be our final destination (but we can't
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1390 * check that since we may not have connected yet).
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1391 * A is first hop destination, which doesn't appear in
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1392 * actual IP option, but is stored before the options.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1393 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1394 if (optlen < IPOPT_MINOFF - 1 + sizeof(struct in_addr))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1395 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1396 m->m_len -= sizeof(struct in_addr);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1397 cnt -= sizeof(struct in_addr);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1398 optlen -= sizeof(struct in_addr);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1399 cp[IPOPT_OLEN] = optlen;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1400 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1401 * Move first hop before start of options.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1402 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1403 bcopy((caddr_t)&cp[IPOPT_OFFSET+1], mtod(m, caddr_t),
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1404 sizeof(struct in_addr));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1405 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1406 * Then copy rest of options back
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1407 * to close up the deleted entry.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1408 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1409 ovbcopy((caddr_t)(&cp[IPOPT_OFFSET+1] +
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1410 sizeof(struct in_addr)),
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1411 (caddr_t)&cp[IPOPT_OFFSET+1],
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1412 (unsigned)cnt + sizeof(struct in_addr));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1413 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1414 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1415 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1416 if (m->m_len > MAX_IPOPTLEN + sizeof(struct in_addr))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1417 goto bad;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1418 *pcbopt = m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1419 return (0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1420
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1421 bad:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1422 (void)m_free(m);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1423 return (EINVAL);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1424 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1425
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1426 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1427 * Set the IP multicast options in response to user setsockopt().
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1428 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1429 int
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1430 ip_setmoptions(optname, imop, m)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1431 int optname;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1432 struct ip_moptions **imop;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1433 struct mbuf *m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1434 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1435 register int error = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1436 u_char loop;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1437 register int i;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1438 struct in_addr addr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1439 register struct ip_mreq *mreq;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1440 register struct ifnet *ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1441 register struct ip_moptions imo = imop;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1442 struct route ro;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1443 register struct sockaddr_in *dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1444
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1445 if (imo == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1446 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1447 * No multicast option buffer attached to the pcb;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1448 * allocate one and initialize to default values.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1449 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1450 imo = (struct ip_moptions )malloc(sizeof(imo), M_IPMOPTS,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1451 M_WAITOK);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1452
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1453 if (imo == NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1454 return (ENOBUFS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1455 *imop = imo;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1456 imo->imo_multicast_ifp = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1457 imo->imo_multicast_ttl = IP_DEFAULT_MULTICAST_TTL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1458 imo->imo_multicast_loop = IP_DEFAULT_MULTICAST_LOOP;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1459 imo->imo_num_memberships = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1460 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1461
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1462 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1463
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1464 case IP_MULTICAST_IF:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1465 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1466 * Select the interface for outgoing multicast packets.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1467 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1468 if (m == NULL \|\| m->m_len != sizeof(struct in_addr)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1469 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1470 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1471 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1472 addr = (mtod(m, struct in_addr ));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1473 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1474 * INADDR_ANY is used to remove a previous selection.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1475 * When no interface is selected, a default one is
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1476 * chosen every time a multicast packet is sent.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1477 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1478 if (addr.s_addr == INADDR_ANY) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1479 imo->imo_multicast_ifp = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1480 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1481 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1482 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1483 * The selected interface is identified by its local
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1484 * IP address. Find the interface and confirm that
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1485 * it supports multicasting.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1486 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1487 INADDR_TO_IFP(addr, ifp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1488 if (ifp == NULL \|\| (ifp->if_flags & IFF_MULTICAST) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1489 error = EADDRNOTAVAIL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1490 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1491 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1492 imo->imo_multicast_ifp = ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1493 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1494
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1495 case IP_MULTICAST_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1496 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1497 * Set the IP time-to-live for outgoing multicast packets.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1498 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1499 if (m == NULL \|\| m->m_len != 1) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1500 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1501 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1502 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1503 imo->imo_multicast_ttl = (mtod(m, u_char ));
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1504 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1505
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1506 case IP_MULTICAST_LOOP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1507 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1508 * Set the loopback flag for outgoing multicast packets.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1509 * Must be zero or one.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1510 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1511 if (m == NULL \|\| m->m_len != 1 \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1512 (loop = (mtod(m, u_char ))) > 1) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1513 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1514 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1515 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1516 imo->imo_multicast_loop = loop;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1517 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1518
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1519 case IP_ADD_MEMBERSHIP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1520 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1521 * Add a multicast group membership.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1522 * Group must be a valid IP multicast address.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1523 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1524 if (m == NULL \|\| m->m_len != sizeof(struct ip_mreq)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1525 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1526 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1527 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1528 mreq = mtod(m, struct ip_mreq *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1529 if (!IN_MULTICAST(mreq->imr_multiaddr.s_addr)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1530 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1531 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1532 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1533 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1534 * If no interface address was provided, use the interface of
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1535 * the route to the given multicast address.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1536 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1537 if (mreq->imr_interface.s_addr == INADDR_ANY) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1538 ro.ro_rt = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1539 dst = satosin(&ro.ro_dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1540 dst->sin_len = sizeof(*dst);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1541 dst->sin_family = AF_INET;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1542 dst->sin_addr = mreq->imr_multiaddr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1543 rtalloc(&ro);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1544 if (ro.ro_rt == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1545 error = EADDRNOTAVAIL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1546 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1547 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1548 ifp = ro.ro_rt->rt_ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1549 rtfree(ro.ro_rt);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1550 } else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1551 INADDR_TO_IFP(mreq->imr_interface, ifp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1552 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1553 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1554 * See if we found an interface, and confirm that it
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1555 * supports multicast.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1556 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1557 if (ifp == NULL \|\| (ifp->if_flags & IFF_MULTICAST) == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1558 error = EADDRNOTAVAIL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1559 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1560 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1561 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1562 * See if the membership already exists or if all the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1563 * membership slots are full.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1564 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1565 for (i = 0; i < imo->imo_num_memberships; ++i) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1566 if (imo->imo_membership[i]->inm_ifp == ifp &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1567 imo->imo_membership[i]->inm_addr.s_addr
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1568 == mreq->imr_multiaddr.s_addr)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1569 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1570 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1571 if (i < imo->imo_num_memberships) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1572 error = EADDRINUSE;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1573 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1574 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1575 if (i == IP_MAX_MEMBERSHIPS) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1576 error = ETOOMANYREFS;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1577 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1578 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1579 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1580 * Everything looks good; add a new record to the multicast
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1581 * address list for the given interface.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1582 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1583 if ((imo->imo_membership[i] =
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1584 in_addmulti(&mreq->imr_multiaddr, ifp)) == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1585 error = ENOBUFS;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1586 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1587 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1588 ++imo->imo_num_memberships;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1589 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1590
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1591 case IP_DROP_MEMBERSHIP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1592 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1593 * Drop a multicast group membership.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1594 * Group must be a valid IP multicast address.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1595 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1596 if (m == NULL \|\| m->m_len != sizeof(struct ip_mreq)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1597 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1598 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1599 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1600 mreq = mtod(m, struct ip_mreq *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1601 if (!IN_MULTICAST(mreq->imr_multiaddr.s_addr)) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1602 error = EINVAL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1603 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1604 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1605 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1606 * If an interface address was specified, get a pointer
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1607 * to its ifnet structure.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1608 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1609 if (mreq->imr_interface.s_addr == INADDR_ANY)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1610 ifp = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1611 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1612 INADDR_TO_IFP(mreq->imr_interface, ifp);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1613 if (ifp == NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1614 error = EADDRNOTAVAIL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1615 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1616 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1617 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1618 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1619 * Find the membership in the membership array.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1620 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1621 for (i = 0; i < imo->imo_num_memberships; ++i) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1622 if ((ifp == NULL \|\|
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1623 imo->imo_membership[i]->inm_ifp == ifp) &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1624 imo->imo_membership[i]->inm_addr.s_addr ==
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1625 mreq->imr_multiaddr.s_addr)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1626 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1627 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1628 if (i == imo->imo_num_memberships) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1629 error = EADDRNOTAVAIL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1630 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1631 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1632 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1633 * Give up the multicast address record to which the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1634 * membership points.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1635 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1636 in_delmulti(imo->imo_membership[i]);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1637 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1638 * Remove the gap in the membership array.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1639 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1640 for (++i; i < imo->imo_num_memberships; ++i)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1641 imo->imo_membership[i-1] = imo->imo_membership[i];
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1642 --imo->imo_num_memberships;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1643 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1644
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1645 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1646 error = EOPNOTSUPP;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1647 break;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1648 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1649
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1650 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1651 * If all options have default values, no need to keep the mbuf.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1652 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1653 if (imo->imo_multicast_ifp == NULL &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1654 imo->imo_multicast_ttl == IP_DEFAULT_MULTICAST_TTL &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1655 imo->imo_multicast_loop == IP_DEFAULT_MULTICAST_LOOP &&
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1656 imo->imo_num_memberships == 0) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1657 free(*imop, M_IPMOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1658 *imop = NULL;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1659 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1660
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1661 return (error);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1662 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1663
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1664 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1665 * Return the IP multicast options in response to user getsockopt().
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1666 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1667 int
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1668 ip_getmoptions(optname, imo, mp)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1669 int optname;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1670 register struct ip_moptions *imo;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1671 register struct mbuf **mp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1672 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1673 u_char *ttl;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1674 u_char *loop;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1675 struct in_addr *addr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1676 struct in_ifaddr *ia;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1677
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1678 *mp = m_get(M_WAIT, MT_SOOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1679
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1680 switch (optname) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1681
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1682 case IP_MULTICAST_IF:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1683 addr = mtod(mp, struct in_addr );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1684 (*mp)->m_len = sizeof(struct in_addr);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1685 if (imo == NULL \|\| imo->imo_multicast_ifp == NULL)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1686 addr->s_addr = INADDR_ANY;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1687 else {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1688 IFP_TO_IA(imo->imo_multicast_ifp, ia);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1689 addr->s_addr = (ia == NULL) ? INADDR_ANY
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1690 : ia->ia_addr.sin_addr.s_addr;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1691 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1692 return (0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1693
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1694 case IP_MULTICAST_TTL:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1695 ttl = mtod(mp, u_char );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1696 (*mp)->m_len = 1;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1697 *ttl = (imo == NULL) ? IP_DEFAULT_MULTICAST_TTL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1698 : imo->imo_multicast_ttl;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1699 return (0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1700
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1701 case IP_MULTICAST_LOOP:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1702 loop = mtod(mp, u_char );
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1703 (*mp)->m_len = 1;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1704 *loop = (imo == NULL) ? IP_DEFAULT_MULTICAST_LOOP
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1705 : imo->imo_multicast_loop;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1706 return (0);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1707
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1708 default:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1709 return (EOPNOTSUPP);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1710 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1711 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1712
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1713 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1714 * Discard the IP multicast options.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1715 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1716 void
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1717 ip_freemoptions(imo)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1718 register struct ip_moptions *imo;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1719 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1720 register int i;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1721
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1722 if (imo != NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1723 for (i = 0; i < imo->imo_num_memberships; ++i)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1724 in_delmulti(imo->imo_membership[i]);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1725 free(imo, M_IPMOPTS);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1726 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1727 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1728
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1729 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1730 * Routine called from ip_output() to loop back a copy of an IP multicast
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1731 * packet to the input queue of a specified interface. Note that this
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1732 * calls the output routine of the loopback "driver", but with an interface
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1733 * pointer that might NOT be &loif -- easier than replicating that code here.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1734 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1735 static void
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1736 ip_mloopback(ifp, m, dst)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1737 struct ifnet *ifp;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1738 register struct mbuf *m;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1739 register struct sockaddr_in *dst;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1740 {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1741 register struct ip *ip;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1742 struct mbuf *copym;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1743
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1744 copym = m_copy(m, 0, M_COPYALL);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1745 if (copym != NULL) {
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1746 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1747 * We don't bother to fragment if the IP length is greater
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1748 * than the interface's MTU. Can this possibly matter?
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1749 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1750 ip = mtod(copym, struct ip *);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1751 ip->ip_len = htons((u_int16_t)ip->ip_len);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1752 ip->ip_off = htons((u_int16_t)ip->ip_off);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1753 ip->ip_sum = 0;
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1754 ip->ip_sum = in_cksum(copym, ip->ip_hl << 2);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1755 (void) looutput(ifp, copym, sintosa(dst), NULL);
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1756 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST jlarmour parents: diff changeset	1757 }

Mercurial > ecos-v3_0-branch

annotate packages/net/tcpip/current/src/sys/netinet/ip_output.c @ 2729:74dbf4c3f2e1 after-copyright-change-20090129