| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. The rights granted to you under the License |
| | 10 | * may not be used to create, or enable the creation or redistribution of, |
| | 11 | * unlawful or unlicensed copies of an Apple operating system, or to |
| | 12 | * circumvent, violate, or enable the circumvention or violation of, any |
| | 13 | * terms of an Apple operating system software license agreement. |
| | 14 | * |
| | 15 | * Please obtain a copy of the License at |
| | 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
| | 17 | * |
| | 18 | * The Original Code and all software distributed under the License are |
| | 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 23 | * Please see the License for the specific language governing rights and |
| | 24 | * limitations under the License. |
| | 25 | * |
| | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| | 27 | */ |
| | 28 | /* |
| | 29 | * Copyright (c) 1996 Apple Computer, Inc. |
| | 30 | * |
| | 31 | * Created April 8, 1996 by Tuyen Nguyen |
| | 32 | * Modified, March 17, 1997 by Tuyen Nguyen for MacOSX. |
| | 33 | * |
| | 34 | * File: tx.c |
| | 35 | */ |
| | 36 | |
| | 37 | #ifdef AURP_SUPPORT |
| | 38 | |
| | 39 | #include <sys/errno.h> |
| | 40 | #include <sys/types.h> |
| | 41 | #include <sys/param.h> |
| | 42 | #include <machine/spl.h> |
| | 43 | #include <sys/systm.h> |
| | 44 | #include <sys/kernel.h> |
| | 45 | #include <sys/proc.h> |
| | 46 | #include <sys/filedesc.h> |
| | 47 | #include <sys/fcntl.h> |
| | 48 | #include <sys/mbuf.h> |
| | 49 | #include <sys/socket.h> |
| | 50 | #include <sys/socketvar.h> |
| | 51 | #include <net/if.h> |
| | 52 | |
| | 53 | #include <netat/sysglue.h> |
| | 54 | #include <netat/appletalk.h> |
| | 55 | #include <netat/at_pcb.h> |
| | 56 | #include <netat/at_var.h> |
| | 57 | #include <netat/routing_tables.h> |
| | 58 | #include <netat/aurp.h> |
| | 59 | #include <netat/debug.h> |
| | 60 | |
| | 61 | /* |
| | 62 | * Any AURP protocol or appletalk data (ddp) packets flowing through |
| | 63 | * are inserted into the kernel aurpd process's (atalk) input queue. |
| | 64 | * Assume here that we deal with single packets, i.e., someone earlier |
| | 65 | * in the food chain has broken up packet chains. |
| | 66 | */ |
| | 67 | void AURPsend(mdata, type, node) |
| | 68 | gbuf_t *mdata; |
| | 69 | int type, node; |
| | 70 | { |
| | 71 | struct aurp_domain *domain; |
| | 72 | gbuf_t *m; |
| | 73 | int msize = AT_WR_OFFSET+32+IP_DOMAINSIZE; |
| | 74 | |
| | 75 | /* Add the domain header */ |
| | 76 | if ((m = gbuf_alloc(msize, PRI_MED)) == 0) { |
| | 77 | gbuf_freem(mdata); |
| | 78 | dPrintf(D_M_AURP, D_L_WARNING, ("AURPsend: gbuf_alloc failed\n")); |
| | 79 | return; |
| | 80 | } |
| | 81 | gbuf_wset(m,msize); |
| | 82 | gbuf_rinc(m,AT_WR_OFFSET+32); |
| | 83 | gbuf_cont(m) = mdata; |
| | 84 | domain = (struct aurp_domain *)gbuf_rptr(m); |
| | 85 | domain->dst_length = IP_LENGTH; |
| | 86 | domain->dst_authority = IP_AUTHORITY; |
| | 87 | domain->dst_distinguisher = IP_DISTINGUISHER; |
| | 88 | domain->src_length = IP_LENGTH; |
| | 89 | domain->src_authority = IP_AUTHORITY; |
| | 90 | domain->src_distinguisher = IP_DISTINGUISHER; |
| | 91 | domain->src_address = aurp_global.src_addr; |
| | 92 | domain->version = AUD_Version; |
| | 93 | domain->reserved = 0; |
| | 94 | domain->type = type; |
| | 95 | domain->dst_address = aurp_global.dst_addr[node]; |
| | 96 | atalk_to_ip(m); |
| | 97 | } |
| | 98 | |
| | 99 | /* |
| | 100 | * Called from within ddp (via ddp_AURPsendx) to handle data (DDP) packets |
| | 101 | * sent from the AppleTalk stack, routing updates, and routing info |
| | 102 | * initialization. |
| | 103 | */ |
| | 104 | void AURPcmdx(code, mdata, param) |
| | 105 | int code; |
| | 106 | gbuf_t *mdata; |
| | 107 | int param; |
| | 108 | { |
| | 109 | unsigned char node; |
| | 110 | gbuf_t *mdata_next; |
| | 111 | |
| | 112 | if (mdata == 0) |
| | 113 | return; |
| | 114 | if (aurp_gref == 0) { |
| | 115 | if (code != AURPCODE_DEBUGINFO) |
| | 116 | AURPfreemsg(mdata); |
| | 117 | return; |
| | 118 | } |
| | 119 | |
| | 120 | switch (code) { |
| | 121 | case AURPCODE_DATAPKT: /* data packet */ |
| | 122 | node = (unsigned char)param; |
| | 123 | if (gbuf_next(mdata)) { |
| | 124 | mdata_next = gbuf_next(mdata); |
| | 125 | gbuf_next(mdata) = 0; |
| | 126 | AURPsend(mdata, AUD_Atalk, node); |
| | 127 | do { |
| | 128 | mdata = mdata_next; |
| | 129 | mdata_next = gbuf_next(mdata); |
| | 130 | gbuf_next(mdata) = 0; |
| | 131 | /* Indicate non-AURP packet, node id of peer */ |
| | 132 | AURPsend(mdata, AUD_Atalk, node); |
| | 133 | } while (mdata_next); |
| | 134 | } else |
| | 135 | AURPsend(mdata, AUD_Atalk, node); |
| | 136 | break; |
| | 137 | |
| | 138 | case AURPCODE_RTUPDATE: |
| | 139 | AURPrtupdate((RT_entry *)mdata, param); |
| | 140 | break; |
| | 141 | |
| | 142 | case AURPCODE_DEBUGINFO: /* debug info */ |
| | 143 | dbgBits = *(dbgBits_t *)mdata; |
| | 144 | net_port = param; |
| | 145 | break; |
| | 146 | |
| | 147 | default: |
| | 148 | dPrintf(D_M_AURP, D_L_ERROR, ("AURPcmdx: bad code, %d\n", code)); |
| | 149 | } |
| | 150 | } |
| | 151 | |
| | 152 | #endif /* AURP_SUPPORT */ |
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