[39e6e65a] | 1 | /* |
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| 2 | * Copyright (c) 1982, 1989, 1993 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * 1. Redistributions of source code must retain the above copyright |
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| 9 | * notice, this list of conditions and the following disclaimer. |
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer in the |
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| 12 | * documentation and/or other materials provided with the distribution. |
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| 13 | * 3. All advertising materials mentioning features or use of this software |
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| 14 | * must display the following acknowledgement: |
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| 15 | * This product includes software developed by the University of |
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| 16 | * California, Berkeley and its contributors. |
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| 17 | * 4. Neither the name of the University nor the names of its contributors |
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| 18 | * may be used to endorse or promote products derived from this software |
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| 19 | * without specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 31 | * SUCH DAMAGE. |
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| 32 | * |
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| 33 | * @(#)if_ethersubr.c 8.1 (Berkeley) 6/10/93 |
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| 34 | * $Id$ |
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| 35 | */ |
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| 36 | |
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| 37 | #include <sys/param.h> |
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| 38 | #include <sys/systm.h> |
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| 39 | #include <sys/kernel.h> |
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| 40 | #include <sys/malloc.h> |
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| 41 | #include <sys/mbuf.h> |
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| 42 | #include <sys/protosw.h> |
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| 43 | #include <sys/socket.h> |
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| 44 | #include <sys/ioctl.h> |
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| 45 | #include <sys/errno.h> |
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| 46 | #include <sys/syslog.h> |
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| 47 | #include <sys/sysctl.h> |
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| 48 | |
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| 49 | #include <net/if.h> |
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| 50 | #include <net/netisr.h> |
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| 51 | #include <net/route.h> |
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| 52 | #include <net/if_llc.h> |
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| 53 | #include <net/if_dl.h> |
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| 54 | #include <net/if_types.h> |
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| 55 | #include <net/ethernet.h> |
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| 56 | |
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| 57 | #ifdef INET |
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| 58 | #include <netinet/in.h> |
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| 59 | #include <netinet/in_var.h> |
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| 60 | #endif |
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| 61 | #include <netinet/if_ether.h> |
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| 62 | |
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| 63 | #ifdef IPX |
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| 64 | #include <netipx/ipx.h> |
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| 65 | #include <netipx/ipx_if.h> |
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| 66 | #endif |
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| 67 | |
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| 68 | #ifdef NS |
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| 69 | #include <netns/ns.h> |
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| 70 | #include <netns/ns_if.h> |
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| 71 | ushort ns_nettype; |
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| 72 | int ether_outputdebug = 0; |
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| 73 | int ether_inputdebug = 0; |
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| 74 | #endif |
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| 75 | |
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| 76 | #ifdef ISO |
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| 77 | #include <netiso/argo_debug.h> |
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| 78 | #include <netiso/iso.h> |
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| 79 | #include <netiso/iso_var.h> |
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| 80 | #include <netiso/iso_snpac.h> |
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| 81 | #endif |
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| 82 | |
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| 83 | /*#ifdef LLC |
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| 84 | #include <netccitt/dll.h> |
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| 85 | #include <netccitt/llc_var.h> |
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| 86 | #endif*/ |
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| 87 | |
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| 88 | #if defined(LLC) && defined(CCITT) |
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| 89 | extern struct ifqueue pkintrq; |
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| 90 | #endif |
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| 91 | |
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| 92 | #ifdef NETATALK |
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| 93 | #include <netatalk/at.h> |
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| 94 | #include <netatalk/at_var.h> |
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| 95 | #include <netatalk/at_extern.h> |
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| 96 | |
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| 97 | #define llc_snap_org_code llc_un.type_snap.org_code |
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| 98 | #define llc_snap_ether_type llc_un.type_snap.ether_type |
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| 99 | |
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| 100 | extern u_char at_org_code[ 3 ]; |
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| 101 | extern u_char aarp_org_code[ 3 ]; |
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| 102 | #endif NETATALK |
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| 103 | |
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| 104 | u_char etherbroadcastaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
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| 105 | #define senderr(e) { error = (e); goto bad;} |
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| 106 | |
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| 107 | /* |
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| 108 | * Ethernet output routine. |
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| 109 | * Encapsulate a packet of type family for the local net. |
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| 110 | * Use trailer local net encapsulation if enough data in first |
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| 111 | * packet leaves a multiple of 512 bytes of data in remainder. |
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| 112 | * Assumes that ifp is actually pointer to arpcom structure. |
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| 113 | */ |
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| 114 | int |
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| 115 | ether_output(ifp, m0, dst, rt0) |
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| 116 | register struct ifnet *ifp; |
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| 117 | struct mbuf *m0; |
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| 118 | struct sockaddr *dst; |
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| 119 | struct rtentry *rt0; |
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| 120 | { |
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| 121 | short type; |
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| 122 | int s, error = 0; |
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[ff0f694d] | 123 | #ifdef NS |
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| 124 | u_char *cp |
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| 125 | register struct ifqueue *inq; |
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| 126 | register struct mbuf *m2; |
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| 127 | #endif |
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| 128 | u_char edst[6]; |
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| 129 | register struct mbuf *m = m0; |
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[39e6e65a] | 130 | register struct rtentry *rt; |
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| 131 | struct mbuf *mcopy = (struct mbuf *)0; |
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| 132 | register struct ether_header *eh; |
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| 133 | int off, len = m->m_pkthdr.len; |
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| 134 | struct arpcom *ac = (struct arpcom *)ifp; |
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| 135 | #ifdef NETATALK |
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| 136 | struct at_ifaddr *aa; |
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| 137 | #endif NETATALK |
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| 138 | |
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| 139 | if ((ifp->if_flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING)) |
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| 140 | senderr(ENETDOWN); |
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| 141 | rt = rt0; |
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| 142 | if (rt) { |
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| 143 | if ((rt->rt_flags & RTF_UP) == 0) { |
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| 144 | rt0 = rt = rtalloc1(dst, 1, 0UL); |
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| 145 | if (rt0) |
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| 146 | rt->rt_refcnt--; |
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| 147 | else |
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| 148 | senderr(EHOSTUNREACH); |
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| 149 | } |
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| 150 | if (rt->rt_flags & RTF_GATEWAY) { |
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| 151 | if (rt->rt_gwroute == 0) |
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| 152 | goto lookup; |
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| 153 | if (((rt = rt->rt_gwroute)->rt_flags & RTF_UP) == 0) { |
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| 154 | rtfree(rt); rt = rt0; |
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| 155 | lookup: rt->rt_gwroute = rtalloc1(rt->rt_gateway, 1, |
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| 156 | 0UL); |
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| 157 | if ((rt = rt->rt_gwroute) == 0) |
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| 158 | senderr(EHOSTUNREACH); |
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| 159 | } |
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| 160 | } |
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| 161 | if (rt->rt_flags & RTF_REJECT) |
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| 162 | if (rt->rt_rmx.rmx_expire == 0 || |
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| 163 | rtems_bsdnet_seconds_since_boot() < rt->rt_rmx.rmx_expire) |
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| 164 | senderr(rt == rt0 ? EHOSTDOWN : EHOSTUNREACH); |
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| 165 | } |
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| 166 | switch (dst->sa_family) { |
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| 167 | |
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| 168 | #ifdef INET |
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| 169 | case AF_INET: |
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| 170 | if (!arpresolve(ac, rt, m, dst, edst, rt0)) |
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| 171 | return (0); /* if not yet resolved */ |
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| 172 | /* If broadcasting on a simplex interface, loopback a copy */ |
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| 173 | if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)) |
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| 174 | mcopy = m_copy(m, 0, (int)M_COPYALL); |
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| 175 | off = m->m_pkthdr.len - m->m_len; |
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| 176 | type = htons(ETHERTYPE_IP); |
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| 177 | break; |
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| 178 | #endif |
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| 179 | #ifdef IPX |
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| 180 | case AF_IPX: |
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| 181 | { |
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| 182 | struct ifaddr *ia; |
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| 183 | |
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| 184 | type = htons(ETHERTYPE_IPX); |
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| 185 | bcopy((caddr_t)&(((struct sockaddr_ipx *)dst)->sipx_addr.x_host), |
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| 186 | (caddr_t)edst, sizeof (edst)); |
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| 187 | for (ia = ifp->if_addrlist; ia != NULL; ia = ia->ifa_next) |
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| 188 | if(ia->ifa_addr->sa_family == AF_IPX && |
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| 189 | !bcmp((caddr_t)edst, |
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| 190 | (caddr_t)&((struct ipx_ifaddr *)ia)->ia_addr.sipx_addr.x_host, |
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| 191 | sizeof(edst))) |
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| 192 | return (looutput(ifp, m, dst, rt)); |
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| 193 | /* If broadcasting on a simplex interface, loopback a copy */ |
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| 194 | if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)) |
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| 195 | mcopy = m_copy(m, 0, (int)M_COPYALL); |
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| 196 | break; |
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| 197 | } |
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| 198 | #endif |
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| 199 | #ifdef NETATALK |
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| 200 | case AF_APPLETALK: |
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| 201 | { |
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| 202 | struct sockaddr_at *sat = (struct sockaddr_at *)dst; |
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| 203 | |
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| 204 | /* |
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| 205 | * super hack.. |
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| 206 | * Most of this loopback code should move into the appletalk |
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| 207 | * code, but it's here for now.. remember to move it! [JRE] |
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| 208 | * This may not get the same interface we started with |
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| 209 | * fix asap. XXX |
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| 210 | */ |
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| 211 | aa = at_ifawithnet( sat ); |
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| 212 | if (aa == NULL) { |
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| 213 | goto bad; |
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| 214 | } |
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| 215 | if( aa->aa_ifa.ifa_ifp != ifp ) { |
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| 216 | (*aa->aa_ifa.ifa_ifp->if_output)(aa->aa_ifa.ifa_ifp, |
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| 217 | m,dst,rt); |
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| 218 | } |
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| 219 | if (((sat->sat_addr.s_net == ATADDR_ANYNET) |
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| 220 | && (sat->sat_addr.s_node == ATADDR_ANYNODE)) |
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| 221 | || ((sat->sat_addr.s_net == aa->aa_addr.sat_addr.s_net ) |
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| 222 | && (sat->sat_addr.s_node == aa->aa_addr.sat_addr.s_node))) { |
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| 223 | (void) looutput(ifp, m, dst, rt); |
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| 224 | return(0); |
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| 225 | } |
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| 226 | |
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| 227 | if (!aarpresolve(ac, m, (struct sockaddr_at *)dst, edst)) { |
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| 228 | #ifdef NETATALKDEBUG |
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| 229 | extern char *prsockaddr(struct sockaddr *); |
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| 230 | printf("aarpresolv: failed for %s\n", prsockaddr(dst)); |
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| 231 | #endif NETATALKDEBUG |
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| 232 | return (0); |
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| 233 | } |
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| 234 | |
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| 235 | /* |
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| 236 | * If broadcasting on a simplex interface, loopback a copy |
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| 237 | */ |
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| 238 | if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)) |
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| 239 | mcopy = m_copy(m, 0, (int)M_COPYALL); |
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| 240 | } |
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| 241 | /* |
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| 242 | * In the phase 2 case, we need to prepend an mbuf for the llc header. |
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| 243 | * Since we must preserve the value of m, which is passed to us by |
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| 244 | * value, we m_copy() the first mbuf, and use it for our llc header. |
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| 245 | */ |
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| 246 | if ( aa->aa_flags & AFA_PHASE2 ) { |
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| 247 | struct llc llc; |
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| 248 | |
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| 249 | M_PREPEND(m, sizeof(struct llc), M_WAIT); |
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| 250 | len += sizeof(struct llc); |
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| 251 | llc.llc_dsap = llc.llc_ssap = LLC_SNAP_LSAP; |
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| 252 | llc.llc_control = LLC_UI; |
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| 253 | bcopy(at_org_code, llc.llc_snap_org_code, sizeof(at_org_code)); |
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| 254 | llc.llc_snap_ether_type = htons( ETHERTYPE_AT ); |
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| 255 | bcopy(&llc, mtod(m, caddr_t), sizeof(struct llc)); |
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| 256 | type = htons(m->m_pkthdr.len); |
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| 257 | } else { |
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| 258 | type = htons(ETHERTYPE_AT); |
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| 259 | } |
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| 260 | break; |
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| 261 | #endif NETATALK |
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| 262 | #ifdef NS |
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| 263 | case AF_NS: |
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| 264 | switch(ns_nettype){ |
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| 265 | default: |
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| 266 | case 0x8137: /* Novell Ethernet_II Ethernet TYPE II */ |
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| 267 | type = 0x8137; |
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| 268 | break; |
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| 269 | case 0x0: /* Novell 802.3 */ |
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| 270 | type = htons( m->m_pkthdr.len); |
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| 271 | break; |
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| 272 | case 0xe0e0: /* Novell 802.2 and Token-Ring */ |
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| 273 | M_PREPEND(m, 3, M_WAIT); |
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| 274 | type = htons( m->m_pkthdr.len); |
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| 275 | cp = mtod(m, u_char *); |
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| 276 | *cp++ = 0xE0; |
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| 277 | *cp++ = 0xE0; |
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| 278 | *cp++ = 0x03; |
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| 279 | break; |
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| 280 | } |
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| 281 | bcopy((caddr_t)&(((struct sockaddr_ns *)dst)->sns_addr.x_host), |
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| 282 | (caddr_t)edst, sizeof (edst)); |
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| 283 | if (!bcmp((caddr_t)edst, (caddr_t)&ns_thishost, sizeof(edst))){ |
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| 284 | m->m_pkthdr.rcvif = ifp; |
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| 285 | schednetisr(NETISR_NS); |
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| 286 | inq = &nsintrq; |
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| 287 | s = splimp(); |
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| 288 | if (IF_QFULL(inq)) { |
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| 289 | IF_DROP(inq); |
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| 290 | m_freem(m); |
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| 291 | } else |
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| 292 | IF_ENQUEUE(inq, m); |
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| 293 | splx(s); |
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| 294 | return (error); |
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| 295 | } |
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| 296 | if (!bcmp((caddr_t)edst, (caddr_t)&ns_broadhost, sizeof(edst))){ |
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| 297 | m2 = m_copy(m, 0, (int)M_COPYALL); |
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| 298 | m2->m_pkthdr.rcvif = ifp; |
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| 299 | schednetisr(NETISR_NS); |
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| 300 | inq = &nsintrq; |
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| 301 | s = splimp(); |
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| 302 | if (IF_QFULL(inq)) { |
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| 303 | IF_DROP(inq); |
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| 304 | m_freem(m2); |
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| 305 | } else |
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| 306 | IF_ENQUEUE(inq, m2); |
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| 307 | splx(s); |
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| 308 | } |
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| 309 | /* If broadcasting on a simplex interface, loopback a copy */ |
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| 310 | if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)){ |
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| 311 | mcopy = m_copy(m, 0, (int)M_COPYALL); |
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| 312 | } |
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| 313 | break; |
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| 314 | #endif /* NS */ |
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| 315 | #ifdef ISO |
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| 316 | case AF_ISO: { |
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| 317 | int snpalen; |
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| 318 | struct llc *l; |
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| 319 | register struct sockaddr_dl *sdl; |
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| 320 | |
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| 321 | if (rt && (sdl = (struct sockaddr_dl *)rt->rt_gateway) && |
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| 322 | sdl->sdl_family == AF_LINK && sdl->sdl_alen > 0) { |
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| 323 | bcopy(LLADDR(sdl), (caddr_t)edst, sizeof(edst)); |
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| 324 | } else if (error = |
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| 325 | iso_snparesolve(ifp, (struct sockaddr_iso *)dst, |
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| 326 | (char *)edst, &snpalen)) |
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| 327 | goto bad; /* Not Resolved */ |
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| 328 | /* If broadcasting on a simplex interface, loopback a copy */ |
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| 329 | if (*edst & 1) |
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| 330 | m->m_flags |= (M_BCAST|M_MCAST); |
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| 331 | if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX) && |
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| 332 | (mcopy = m_copy(m, 0, (int)M_COPYALL))) { |
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| 333 | M_PREPEND(mcopy, sizeof (*eh), M_DONTWAIT); |
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| 334 | if (mcopy) { |
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| 335 | eh = mtod(mcopy, struct ether_header *); |
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| 336 | bcopy((caddr_t)edst, |
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| 337 | (caddr_t)eh->ether_dhost, sizeof (edst)); |
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| 338 | bcopy((caddr_t)ac->ac_enaddr, |
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| 339 | (caddr_t)eh->ether_shost, sizeof (edst)); |
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| 340 | } |
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| 341 | } |
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| 342 | M_PREPEND(m, 3, M_DONTWAIT); |
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| 343 | if (m == NULL) |
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| 344 | return (0); |
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| 345 | type = htons(m->m_pkthdr.len); |
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| 346 | l = mtod(m, struct llc *); |
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| 347 | l->llc_dsap = l->llc_ssap = LLC_ISO_LSAP; |
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| 348 | l->llc_control = LLC_UI; |
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| 349 | len += 3; |
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| 350 | IFDEBUG(D_ETHER) |
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| 351 | int i; |
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| 352 | printf("unoutput: sending pkt to: "); |
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| 353 | for (i=0; i<6; i++) |
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| 354 | printf("%x ", edst[i] & 0xff); |
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| 355 | printf("\n"); |
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| 356 | ENDDEBUG |
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| 357 | } break; |
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| 358 | #endif /* ISO */ |
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| 359 | #ifdef LLC |
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| 360 | /* case AF_NSAP: */ |
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| 361 | case AF_CCITT: { |
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| 362 | register struct sockaddr_dl *sdl = |
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| 363 | (struct sockaddr_dl *) rt -> rt_gateway; |
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| 364 | |
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| 365 | if (sdl && sdl->sdl_family == AF_LINK |
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| 366 | && sdl->sdl_alen > 0) { |
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| 367 | bcopy(LLADDR(sdl), (char *)edst, |
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| 368 | sizeof(edst)); |
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| 369 | } else goto bad; /* Not a link interface ? Funny ... */ |
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| 370 | if ((ifp->if_flags & IFF_SIMPLEX) && (*edst & 1) && |
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| 371 | (mcopy = m_copy(m, 0, (int)M_COPYALL))) { |
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| 372 | M_PREPEND(mcopy, sizeof (*eh), M_DONTWAIT); |
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| 373 | if (mcopy) { |
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| 374 | eh = mtod(mcopy, struct ether_header *); |
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| 375 | bcopy((caddr_t)edst, |
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| 376 | (caddr_t)eh->ether_dhost, sizeof (edst)); |
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| 377 | bcopy((caddr_t)ac->ac_enaddr, |
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| 378 | (caddr_t)eh->ether_shost, sizeof (edst)); |
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| 379 | } |
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| 380 | } |
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| 381 | type = htons(m->m_pkthdr.len); |
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| 382 | #ifdef LLC_DEBUG |
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| 383 | { |
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| 384 | int i; |
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| 385 | register struct llc *l = mtod(m, struct llc *); |
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| 386 | |
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| 387 | printf("ether_output: sending LLC2 pkt to: "); |
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| 388 | for (i=0; i<6; i++) |
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| 389 | printf("%x ", edst[i] & 0xff); |
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| 390 | printf(" len 0x%x dsap 0x%x ssap 0x%x control 0x%x\n", |
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| 391 | type & 0xff, l->llc_dsap & 0xff, l->llc_ssap &0xff, |
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| 392 | l->llc_control & 0xff); |
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| 393 | |
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| 394 | } |
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| 395 | #endif /* LLC_DEBUG */ |
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| 396 | } break; |
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| 397 | #endif /* LLC */ |
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| 398 | |
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| 399 | case AF_UNSPEC: |
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| 400 | eh = (struct ether_header *)dst->sa_data; |
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| 401 | (void)memcpy(edst, eh->ether_dhost, sizeof (edst)); |
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| 402 | type = eh->ether_type; |
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| 403 | break; |
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| 404 | |
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| 405 | default: |
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| 406 | printf("%s%d: can't handle af%d\n", ifp->if_name, ifp->if_unit, |
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| 407 | dst->sa_family); |
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| 408 | senderr(EAFNOSUPPORT); |
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| 409 | } |
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| 410 | |
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| 411 | |
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| 412 | if (mcopy) |
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| 413 | (void) looutput(ifp, mcopy, dst, rt); |
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| 414 | /* |
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| 415 | * Add local net header. If no space in first mbuf, |
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| 416 | * allocate another. |
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| 417 | */ |
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| 418 | M_PREPEND(m, sizeof (struct ether_header), M_DONTWAIT); |
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| 419 | if (m == 0) |
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| 420 | senderr(ENOBUFS); |
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| 421 | eh = mtod(m, struct ether_header *); |
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| 422 | (void)memcpy(&eh->ether_type, &type, |
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| 423 | sizeof(eh->ether_type)); |
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| 424 | (void)memcpy(eh->ether_dhost, edst, sizeof (edst)); |
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| 425 | (void)memcpy(eh->ether_shost, ac->ac_enaddr, |
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| 426 | sizeof(eh->ether_shost)); |
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| 427 | s = splimp(); |
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| 428 | /* |
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| 429 | * Queue message on interface, and start output if interface |
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| 430 | * not yet active. |
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| 431 | */ |
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| 432 | if (IF_QFULL(&ifp->if_snd)) { |
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| 433 | IF_DROP(&ifp->if_snd); |
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| 434 | splx(s); |
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| 435 | senderr(ENOBUFS); |
---|
| 436 | } |
---|
| 437 | IF_ENQUEUE(&ifp->if_snd, m); |
---|
| 438 | if ((ifp->if_flags & IFF_OACTIVE) == 0) |
---|
| 439 | (*ifp->if_start)(ifp); |
---|
| 440 | splx(s); |
---|
| 441 | ifp->if_obytes += len + sizeof (struct ether_header); |
---|
| 442 | if (m->m_flags & M_MCAST) |
---|
| 443 | ifp->if_omcasts++; |
---|
| 444 | return (error); |
---|
| 445 | |
---|
| 446 | bad: |
---|
| 447 | if (m) |
---|
| 448 | m_freem(m); |
---|
| 449 | return (error); |
---|
| 450 | } |
---|
| 451 | |
---|
| 452 | /* |
---|
| 453 | * Process a received Ethernet packet; |
---|
| 454 | * the packet is in the mbuf chain m without |
---|
| 455 | * the ether header, which is provided separately. |
---|
| 456 | */ |
---|
| 457 | void |
---|
| 458 | ether_input(ifp, eh, m) |
---|
| 459 | struct ifnet *ifp; |
---|
| 460 | register struct ether_header *eh; |
---|
| 461 | struct mbuf *m; |
---|
| 462 | { |
---|
| 463 | register struct ifqueue *inq; |
---|
[ff0f694d] | 464 | u_short ether_type; |
---|
| 465 | #ifdef NS |
---|
| 466 | u_short *checksum; |
---|
| 467 | #endif |
---|
[39e6e65a] | 468 | int s; |
---|
| 469 | #if defined (ISO) || defined (LLC) || defined(NETATALK) |
---|
| 470 | register struct llc *l; |
---|
| 471 | #endif |
---|
| 472 | |
---|
| 473 | if ((ifp->if_flags & IFF_UP) == 0) { |
---|
| 474 | m_freem(m); |
---|
| 475 | return; |
---|
| 476 | } |
---|
| 477 | ifp->if_ibytes += m->m_pkthdr.len + sizeof (*eh); |
---|
| 478 | if (bcmp((caddr_t)etherbroadcastaddr, (caddr_t)eh->ether_dhost, |
---|
| 479 | sizeof(etherbroadcastaddr)) == 0) |
---|
| 480 | m->m_flags |= M_BCAST; |
---|
| 481 | else if (eh->ether_dhost[0] & 1) |
---|
| 482 | m->m_flags |= M_MCAST; |
---|
| 483 | if (m->m_flags & (M_BCAST|M_MCAST)) |
---|
| 484 | ifp->if_imcasts++; |
---|
| 485 | |
---|
[a3d0b8a] | 486 | /* |
---|
| 487 | * RTEMS addition -- allow application to `tap into' |
---|
| 488 | * the incoming packet stream. |
---|
| 489 | */ |
---|
| 490 | if (ifp->if_tap && (*ifp->if_tap)(ifp, eh, m)) { |
---|
| 491 | m_freem(m); |
---|
| 492 | return; |
---|
| 493 | } |
---|
| 494 | |
---|
[39e6e65a] | 495 | ether_type = ntohs(eh->ether_type); |
---|
| 496 | |
---|
| 497 | switch (ether_type) { |
---|
| 498 | #ifdef INET |
---|
| 499 | case ETHERTYPE_IP: |
---|
| 500 | schednetisr(NETISR_IP); |
---|
| 501 | inq = &ipintrq; |
---|
| 502 | break; |
---|
| 503 | |
---|
| 504 | case ETHERTYPE_ARP: |
---|
| 505 | schednetisr(NETISR_ARP); |
---|
| 506 | inq = &arpintrq; |
---|
| 507 | break; |
---|
| 508 | #endif |
---|
| 509 | #ifdef IPX |
---|
| 510 | case ETHERTYPE_IPX: |
---|
| 511 | schednetisr(NETISR_IPX); |
---|
| 512 | inq = &ipxintrq; |
---|
| 513 | break; |
---|
| 514 | #endif |
---|
| 515 | #ifdef NS |
---|
| 516 | case 0x8137: /* Novell Ethernet_II Ethernet TYPE II */ |
---|
| 517 | schednetisr(NETISR_NS); |
---|
| 518 | inq = &nsintrq; |
---|
| 519 | break; |
---|
| 520 | |
---|
| 521 | #endif /* NS */ |
---|
| 522 | #ifdef NETATALK |
---|
| 523 | case ETHERTYPE_AT: |
---|
| 524 | schednetisr(NETISR_ATALK); |
---|
| 525 | inq = &atintrq1; |
---|
| 526 | break; |
---|
| 527 | case ETHERTYPE_AARP: |
---|
| 528 | /* probably this should be done with a NETISR as well */ |
---|
| 529 | aarpinput((struct arpcom *)ifp, m); /* XXX */ |
---|
| 530 | return; |
---|
| 531 | #endif NETATALK |
---|
| 532 | default: |
---|
| 533 | #ifdef NS |
---|
| 534 | checksum = mtod(m, ushort *); |
---|
| 535 | /* Novell 802.3 */ |
---|
| 536 | if ((ether_type <= ETHERMTU) && |
---|
| 537 | ((*checksum == 0xffff) || (*checksum == 0xE0E0))){ |
---|
| 538 | if(*checksum == 0xE0E0) { |
---|
| 539 | m->m_pkthdr.len -= 3; |
---|
| 540 | m->m_len -= 3; |
---|
| 541 | m->m_data += 3; |
---|
| 542 | } |
---|
| 543 | schednetisr(NETISR_NS); |
---|
| 544 | inq = &nsintrq; |
---|
| 545 | break; |
---|
| 546 | } |
---|
| 547 | #endif /* NS */ |
---|
| 548 | #if defined (ISO) || defined (LLC) || defined(NETATALK) |
---|
| 549 | if (ether_type > ETHERMTU) |
---|
| 550 | goto dropanyway; |
---|
| 551 | l = mtod(m, struct llc *); |
---|
| 552 | switch (l->llc_dsap) { |
---|
| 553 | #ifdef NETATALK |
---|
| 554 | case LLC_SNAP_LSAP: |
---|
| 555 | switch (l->llc_control) { |
---|
| 556 | case LLC_UI: |
---|
| 557 | if (l->llc_ssap != LLC_SNAP_LSAP) |
---|
| 558 | goto dropanyway; |
---|
| 559 | |
---|
| 560 | if (Bcmp(&(l->llc_snap_org_code)[0], at_org_code, |
---|
| 561 | sizeof(at_org_code)) == 0 && |
---|
| 562 | ntohs(l->llc_snap_ether_type) == ETHERTYPE_AT) { |
---|
| 563 | inq = &atintrq2; |
---|
| 564 | m_adj( m, sizeof( struct llc )); |
---|
| 565 | schednetisr(NETISR_ATALK); |
---|
| 566 | break; |
---|
| 567 | } |
---|
| 568 | |
---|
| 569 | if (Bcmp(&(l->llc_snap_org_code)[0], aarp_org_code, |
---|
| 570 | sizeof(aarp_org_code)) == 0 && |
---|
| 571 | ntohs(l->llc_snap_ether_type) == ETHERTYPE_AARP) { |
---|
| 572 | m_adj( m, sizeof( struct llc )); |
---|
| 573 | aarpinput((struct arpcom *)ifp, m); /* XXX */ |
---|
| 574 | return; |
---|
| 575 | } |
---|
| 576 | |
---|
| 577 | default: |
---|
| 578 | goto dropanyway; |
---|
| 579 | } |
---|
| 580 | break; |
---|
| 581 | #endif NETATALK |
---|
| 582 | #ifdef ISO |
---|
| 583 | case LLC_ISO_LSAP: |
---|
| 584 | switch (l->llc_control) { |
---|
| 585 | case LLC_UI: |
---|
| 586 | /* LLC_UI_P forbidden in class 1 service */ |
---|
| 587 | if ((l->llc_dsap == LLC_ISO_LSAP) && |
---|
| 588 | (l->llc_ssap == LLC_ISO_LSAP)) { |
---|
| 589 | /* LSAP for ISO */ |
---|
| 590 | if (m->m_pkthdr.len > ether_type) |
---|
| 591 | m_adj(m, ether_type - m->m_pkthdr.len); |
---|
| 592 | m->m_data += 3; /* XXX */ |
---|
| 593 | m->m_len -= 3; /* XXX */ |
---|
| 594 | m->m_pkthdr.len -= 3; /* XXX */ |
---|
| 595 | M_PREPEND(m, sizeof *eh, M_DONTWAIT); |
---|
| 596 | if (m == 0) |
---|
| 597 | return; |
---|
| 598 | *mtod(m, struct ether_header *) = *eh; |
---|
| 599 | IFDEBUG(D_ETHER) |
---|
| 600 | printf("clnp packet"); |
---|
| 601 | ENDDEBUG |
---|
| 602 | schednetisr(NETISR_ISO); |
---|
| 603 | inq = &clnlintrq; |
---|
| 604 | break; |
---|
| 605 | } |
---|
| 606 | goto dropanyway; |
---|
| 607 | |
---|
| 608 | case LLC_XID: |
---|
| 609 | case LLC_XID_P: |
---|
| 610 | if(m->m_len < 6) |
---|
| 611 | goto dropanyway; |
---|
| 612 | l->llc_window = 0; |
---|
| 613 | l->llc_fid = 9; |
---|
| 614 | l->llc_class = 1; |
---|
| 615 | l->llc_dsap = l->llc_ssap = 0; |
---|
| 616 | /* Fall through to */ |
---|
| 617 | case LLC_TEST: |
---|
| 618 | case LLC_TEST_P: |
---|
| 619 | { |
---|
| 620 | struct sockaddr sa; |
---|
| 621 | register struct ether_header *eh2; |
---|
| 622 | int i; |
---|
| 623 | u_char c = l->llc_dsap; |
---|
| 624 | |
---|
| 625 | l->llc_dsap = l->llc_ssap; |
---|
| 626 | l->llc_ssap = c; |
---|
| 627 | if (m->m_flags & (M_BCAST | M_MCAST)) |
---|
| 628 | bcopy((caddr_t)ac->ac_enaddr, |
---|
| 629 | (caddr_t)eh->ether_dhost, 6); |
---|
| 630 | sa.sa_family = AF_UNSPEC; |
---|
| 631 | sa.sa_len = sizeof(sa); |
---|
| 632 | eh2 = (struct ether_header *)sa.sa_data; |
---|
| 633 | for (i = 0; i < 6; i++) { |
---|
| 634 | eh2->ether_shost[i] = c = eh->ether_dhost[i]; |
---|
| 635 | eh2->ether_dhost[i] = |
---|
| 636 | eh->ether_dhost[i] = eh->ether_shost[i]; |
---|
| 637 | eh->ether_shost[i] = c; |
---|
| 638 | } |
---|
| 639 | ifp->if_output(ifp, m, &sa, NULL); |
---|
| 640 | return; |
---|
| 641 | } |
---|
| 642 | default: |
---|
| 643 | m_freem(m); |
---|
| 644 | return; |
---|
| 645 | } |
---|
| 646 | break; |
---|
| 647 | #endif /* ISO */ |
---|
| 648 | #ifdef LLC |
---|
| 649 | case LLC_X25_LSAP: |
---|
| 650 | { |
---|
| 651 | if (m->m_pkthdr.len > ether_type) |
---|
| 652 | m_adj(m, ether_type - m->m_pkthdr.len); |
---|
| 653 | M_PREPEND(m, sizeof(struct sdl_hdr) , M_DONTWAIT); |
---|
| 654 | if (m == 0) |
---|
| 655 | return; |
---|
| 656 | if ( !sdl_sethdrif(ifp, eh->ether_shost, LLC_X25_LSAP, |
---|
| 657 | eh->ether_dhost, LLC_X25_LSAP, 6, |
---|
| 658 | mtod(m, struct sdl_hdr *))) |
---|
| 659 | panic("ETHER cons addr failure"); |
---|
| 660 | mtod(m, struct sdl_hdr *)->sdlhdr_len = ether_type; |
---|
| 661 | #ifdef LLC_DEBUG |
---|
| 662 | printf("llc packet\n"); |
---|
| 663 | #endif /* LLC_DEBUG */ |
---|
| 664 | schednetisr(NETISR_CCITT); |
---|
| 665 | inq = &llcintrq; |
---|
| 666 | break; |
---|
| 667 | } |
---|
| 668 | #endif /* LLC */ |
---|
| 669 | dropanyway: |
---|
| 670 | default: |
---|
| 671 | m_freem(m); |
---|
| 672 | return; |
---|
| 673 | } |
---|
| 674 | #else /* ISO || LLC || NETATALK */ |
---|
| 675 | m_freem(m); |
---|
| 676 | return; |
---|
| 677 | #endif /* ISO || LLC || NETATALK */ |
---|
| 678 | } |
---|
| 679 | |
---|
| 680 | s = splimp(); |
---|
| 681 | if (IF_QFULL(inq)) { |
---|
| 682 | IF_DROP(inq); |
---|
| 683 | m_freem(m); |
---|
| 684 | } else |
---|
| 685 | IF_ENQUEUE(inq, m); |
---|
| 686 | splx(s); |
---|
| 687 | } |
---|
| 688 | |
---|
| 689 | /* |
---|
| 690 | * Perform common duties while attaching to interface list |
---|
| 691 | */ |
---|
| 692 | void |
---|
| 693 | ether_ifattach(ifp) |
---|
| 694 | register struct ifnet *ifp; |
---|
| 695 | { |
---|
| 696 | register struct ifaddr *ifa; |
---|
| 697 | register struct sockaddr_dl *sdl; |
---|
| 698 | |
---|
| 699 | ifp->if_type = IFT_ETHER; |
---|
| 700 | ifp->if_addrlen = 6; |
---|
| 701 | ifp->if_hdrlen = 14; |
---|
| 702 | ifp->if_mtu = ETHERMTU; |
---|
| 703 | if (ifp->if_baudrate == 0) |
---|
| 704 | ifp->if_baudrate = 10000000; |
---|
| 705 | for (ifa = ifp->if_addrlist; ifa; ifa = ifa->ifa_next) |
---|
| 706 | if ((sdl = (struct sockaddr_dl *)ifa->ifa_addr) && |
---|
| 707 | sdl->sdl_family == AF_LINK) { |
---|
| 708 | sdl->sdl_type = IFT_ETHER; |
---|
| 709 | sdl->sdl_alen = ifp->if_addrlen; |
---|
| 710 | bcopy((caddr_t)((struct arpcom *)ifp)->ac_enaddr, |
---|
| 711 | LLADDR(sdl), ifp->if_addrlen); |
---|
| 712 | break; |
---|
| 713 | } |
---|
| 714 | } |
---|
| 715 | |
---|
| 716 | static u_char ether_ipmulticast_min[6] = |
---|
| 717 | { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x00 }; |
---|
| 718 | static u_char ether_ipmulticast_max[6] = |
---|
| 719 | { 0x01, 0x00, 0x5e, 0x7f, 0xff, 0xff }; |
---|
| 720 | /* |
---|
| 721 | * Add an Ethernet multicast address or range of addresses to the list for a |
---|
| 722 | * given interface. |
---|
| 723 | */ |
---|
| 724 | int |
---|
| 725 | ether_addmulti(ifr, ac) |
---|
| 726 | struct ifreq *ifr; |
---|
| 727 | register struct arpcom *ac; |
---|
| 728 | { |
---|
| 729 | register struct ether_multi *enm; |
---|
| 730 | struct sockaddr_in *sin; |
---|
| 731 | u_char addrlo[6]; |
---|
| 732 | u_char addrhi[6]; |
---|
| 733 | int set_allmulti = 0; |
---|
| 734 | int s = splimp(); |
---|
| 735 | |
---|
| 736 | switch (ifr->ifr_addr.sa_family) { |
---|
| 737 | |
---|
| 738 | case AF_UNSPEC: |
---|
| 739 | bcopy(ifr->ifr_addr.sa_data, addrlo, 6); |
---|
| 740 | bcopy(addrlo, addrhi, 6); |
---|
| 741 | break; |
---|
| 742 | |
---|
| 743 | #ifdef INET |
---|
| 744 | case AF_INET: |
---|
| 745 | sin = (struct sockaddr_in *)&(ifr->ifr_addr); |
---|
| 746 | if (sin->sin_addr.s_addr == INADDR_ANY) { |
---|
| 747 | /* |
---|
| 748 | * An IP address of INADDR_ANY means listen to all |
---|
| 749 | * of the Ethernet multicast addresses used for IP. |
---|
| 750 | * (This is for the sake of IP multicast routers.) |
---|
| 751 | */ |
---|
| 752 | bcopy(ether_ipmulticast_min, addrlo, 6); |
---|
| 753 | bcopy(ether_ipmulticast_max, addrhi, 6); |
---|
| 754 | set_allmulti = 1; |
---|
| 755 | } |
---|
| 756 | else { |
---|
| 757 | ETHER_MAP_IP_MULTICAST(&sin->sin_addr, addrlo); |
---|
| 758 | bcopy(addrlo, addrhi, 6); |
---|
| 759 | } |
---|
| 760 | break; |
---|
| 761 | #endif |
---|
| 762 | |
---|
| 763 | default: |
---|
| 764 | splx(s); |
---|
| 765 | return (EAFNOSUPPORT); |
---|
| 766 | } |
---|
| 767 | |
---|
| 768 | /* |
---|
| 769 | * Verify that we have valid Ethernet multicast addresses. |
---|
| 770 | */ |
---|
| 771 | if ((addrlo[0] & 0x01) != 1 || (addrhi[0] & 0x01) != 1) { |
---|
| 772 | splx(s); |
---|
| 773 | return (EINVAL); |
---|
| 774 | } |
---|
| 775 | /* |
---|
| 776 | * See if the address range is already in the list. |
---|
| 777 | */ |
---|
| 778 | ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm); |
---|
| 779 | if (enm != NULL) { |
---|
| 780 | /* |
---|
| 781 | * Found it; just increment the reference count. |
---|
| 782 | */ |
---|
| 783 | ++enm->enm_refcount; |
---|
| 784 | splx(s); |
---|
| 785 | return (0); |
---|
| 786 | } |
---|
| 787 | /* |
---|
| 788 | * New address or range; malloc a new multicast record |
---|
| 789 | * and link it into the interface's multicast list. |
---|
| 790 | */ |
---|
| 791 | enm = (struct ether_multi *)malloc(sizeof(*enm), M_IFMADDR, M_NOWAIT); |
---|
| 792 | if (enm == NULL) { |
---|
| 793 | splx(s); |
---|
| 794 | return (ENOBUFS); |
---|
| 795 | } |
---|
| 796 | bcopy(addrlo, enm->enm_addrlo, 6); |
---|
| 797 | bcopy(addrhi, enm->enm_addrhi, 6); |
---|
| 798 | enm->enm_ac = ac; |
---|
| 799 | enm->enm_refcount = 1; |
---|
| 800 | enm->enm_next = ac->ac_multiaddrs; |
---|
| 801 | ac->ac_multiaddrs = enm; |
---|
| 802 | ac->ac_multicnt++; |
---|
| 803 | splx(s); |
---|
| 804 | if (set_allmulti) |
---|
| 805 | ac->ac_if.if_flags |= IFF_ALLMULTI; |
---|
| 806 | |
---|
| 807 | /* |
---|
| 808 | * Return ENETRESET to inform the driver that the list has changed |
---|
| 809 | * and its reception filter should be adjusted accordingly. |
---|
| 810 | */ |
---|
| 811 | return (ENETRESET); |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | /* |
---|
| 815 | * Delete a multicast address record. |
---|
| 816 | */ |
---|
| 817 | int |
---|
| 818 | ether_delmulti(ifr, ac) |
---|
| 819 | struct ifreq *ifr; |
---|
| 820 | register struct arpcom *ac; |
---|
| 821 | { |
---|
| 822 | register struct ether_multi *enm; |
---|
| 823 | register struct ether_multi **p; |
---|
| 824 | struct sockaddr_in *sin; |
---|
| 825 | u_char addrlo[6]; |
---|
| 826 | u_char addrhi[6]; |
---|
| 827 | int unset_allmulti = 0; |
---|
| 828 | int s = splimp(); |
---|
| 829 | |
---|
| 830 | switch (ifr->ifr_addr.sa_family) { |
---|
| 831 | |
---|
| 832 | case AF_UNSPEC: |
---|
| 833 | bcopy(ifr->ifr_addr.sa_data, addrlo, 6); |
---|
| 834 | bcopy(addrlo, addrhi, 6); |
---|
| 835 | break; |
---|
| 836 | |
---|
| 837 | #ifdef INET |
---|
| 838 | case AF_INET: |
---|
| 839 | sin = (struct sockaddr_in *)&(ifr->ifr_addr); |
---|
| 840 | if (sin->sin_addr.s_addr == INADDR_ANY) { |
---|
| 841 | /* |
---|
| 842 | * An IP address of INADDR_ANY means stop listening |
---|
| 843 | * to the range of Ethernet multicast addresses used |
---|
| 844 | * for IP. |
---|
| 845 | */ |
---|
| 846 | bcopy(ether_ipmulticast_min, addrlo, 6); |
---|
| 847 | bcopy(ether_ipmulticast_max, addrhi, 6); |
---|
| 848 | unset_allmulti = 1; |
---|
| 849 | } |
---|
| 850 | else { |
---|
| 851 | ETHER_MAP_IP_MULTICAST(&sin->sin_addr, addrlo); |
---|
| 852 | bcopy(addrlo, addrhi, 6); |
---|
| 853 | } |
---|
| 854 | break; |
---|
| 855 | #endif |
---|
| 856 | |
---|
| 857 | default: |
---|
| 858 | splx(s); |
---|
| 859 | return (EAFNOSUPPORT); |
---|
| 860 | } |
---|
| 861 | |
---|
| 862 | /* |
---|
| 863 | * Look up the address in our list. |
---|
| 864 | */ |
---|
| 865 | ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm); |
---|
| 866 | if (enm == NULL) { |
---|
| 867 | splx(s); |
---|
| 868 | return (ENXIO); |
---|
| 869 | } |
---|
| 870 | if (--enm->enm_refcount != 0) { |
---|
| 871 | /* |
---|
| 872 | * Still some claims to this record. |
---|
| 873 | */ |
---|
| 874 | splx(s); |
---|
| 875 | return (0); |
---|
| 876 | } |
---|
| 877 | /* |
---|
| 878 | * No remaining claims to this record; unlink and free it. |
---|
| 879 | */ |
---|
| 880 | for (p = &enm->enm_ac->ac_multiaddrs; |
---|
| 881 | *p != enm; |
---|
| 882 | p = &(*p)->enm_next) |
---|
| 883 | continue; |
---|
| 884 | *p = (*p)->enm_next; |
---|
| 885 | free(enm, M_IFMADDR); |
---|
| 886 | ac->ac_multicnt--; |
---|
| 887 | splx(s); |
---|
| 888 | if (unset_allmulti) |
---|
| 889 | ac->ac_if.if_flags &= ~IFF_ALLMULTI; |
---|
| 890 | |
---|
| 891 | /* |
---|
| 892 | * Return ENETRESET to inform the driver that the list has changed |
---|
| 893 | * and its reception filter should be adjusted accordingly. |
---|
| 894 | */ |
---|
| 895 | return (ENETRESET); |
---|
| 896 | } |
---|
| 897 | |
---|
| 898 | SYSCTL_NODE(_net_link, IFT_ETHER, ether, CTLFLAG_RW, 0, "Ethernet"); |
---|
| 899 | |
---|
| 900 | int |
---|
| 901 | ether_ioctl(struct ifnet *ifp, int command, caddr_t data) |
---|
| 902 | { |
---|
| 903 | struct ifaddr *ifa = (struct ifaddr *) data; |
---|
| 904 | struct ifreq *ifr = (struct ifreq *) data; |
---|
| 905 | int error = 0; |
---|
| 906 | |
---|
| 907 | switch (command) { |
---|
| 908 | case SIOCSIFADDR: |
---|
| 909 | ifp->if_flags |= IFF_UP; |
---|
| 910 | |
---|
| 911 | switch (ifa->ifa_addr->sa_family) { |
---|
| 912 | #ifdef INET |
---|
| 913 | case AF_INET: |
---|
| 914 | ifp->if_init(ifp->if_softc); /* before arpwhohas */ |
---|
| 915 | arp_ifinit((struct arpcom *)ifp, ifa); |
---|
| 916 | break; |
---|
| 917 | #endif |
---|
| 918 | #ifdef IPX |
---|
| 919 | /* |
---|
| 920 | * XXX - This code is probably wrong |
---|
| 921 | */ |
---|
| 922 | case AF_IPX: |
---|
| 923 | { |
---|
| 924 | register struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr); |
---|
| 925 | struct arpcom *ac = (struct arpcom *) (ifp->if_softc); |
---|
| 926 | |
---|
| 927 | if (ipx_nullhost(*ina)) |
---|
| 928 | ina->x_host = |
---|
| 929 | *(union ipx_host *) |
---|
| 930 | ac->ac_enaddr; |
---|
| 931 | else { |
---|
| 932 | bcopy((caddr_t) ina->x_host.c_host, |
---|
| 933 | (caddr_t) ac->ac_enaddr, |
---|
| 934 | sizeof(ac->ac_enaddr)); |
---|
| 935 | } |
---|
| 936 | |
---|
| 937 | /* |
---|
| 938 | * Set new address |
---|
| 939 | */ |
---|
| 940 | ifp->if_init(ifp->if_softc); |
---|
| 941 | break; |
---|
| 942 | } |
---|
| 943 | #endif |
---|
| 944 | #ifdef NS |
---|
| 945 | /* |
---|
| 946 | * XXX - This code is probably wrong |
---|
| 947 | */ |
---|
| 948 | case AF_NS: |
---|
| 949 | { |
---|
| 950 | register struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); |
---|
| 951 | struct arpcom *ac = (struct arpcom *) (ifp->if_softc); |
---|
| 952 | |
---|
| 953 | if (ns_nullhost(*ina)) |
---|
| 954 | ina->x_host = |
---|
| 955 | *(union ns_host *) (ac->ac_enaddr); |
---|
| 956 | else { |
---|
| 957 | bcopy((caddr_t) ina->x_host.c_host, |
---|
| 958 | (caddr_t) ac->ac_enaddr, |
---|
| 959 | sizeof(ac->ac_enaddr)); |
---|
| 960 | } |
---|
| 961 | |
---|
| 962 | /* |
---|
| 963 | * Set new address |
---|
| 964 | */ |
---|
| 965 | ifp->if_init(ifp->if_softc); |
---|
| 966 | break; |
---|
| 967 | } |
---|
| 968 | #endif |
---|
| 969 | default: |
---|
| 970 | ifp->if_init(ifp->if_softc); |
---|
| 971 | break; |
---|
| 972 | } |
---|
| 973 | break; |
---|
| 974 | |
---|
| 975 | case SIOCGIFADDR: |
---|
| 976 | { |
---|
| 977 | struct sockaddr *sa; |
---|
| 978 | |
---|
| 979 | sa = (struct sockaddr *) & ifr->ifr_data; |
---|
| 980 | bcopy(((struct arpcom *)ifp->if_softc)->ac_enaddr, |
---|
| 981 | (caddr_t) sa->sa_data, ETHER_ADDR_LEN); |
---|
| 982 | } |
---|
| 983 | break; |
---|
| 984 | |
---|
| 985 | case SIOCSIFMTU: |
---|
| 986 | /* |
---|
| 987 | * Set the interface MTU. |
---|
| 988 | */ |
---|
| 989 | if (ifr->ifr_mtu > ETHERMTU) { |
---|
| 990 | error = EINVAL; |
---|
| 991 | } else { |
---|
| 992 | ifp->if_mtu = ifr->ifr_mtu; |
---|
| 993 | } |
---|
| 994 | break; |
---|
| 995 | } |
---|
| 996 | return (error); |
---|
| 997 | } |
---|