| 1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| 3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ |
| 5 | * |
| 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 7 | * |
| 8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in |
| 11 | * compliance with the License. Please obtain a copy of the License at |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| 13 | * file. |
| 14 | * |
| 15 | * The Original Code and all software distributed under the License are |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| 17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and |
| 21 | * limitations under the License. |
| 22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ |
| 24 | */ |
| 25 | /* |
| 26 | * Copyright (c) 1988-1998 Apple Computer, Inc. |
| 27 | */ |
| 28 | /* |
| 29 | * 0.01 05/12/94 Laurent Dumont Creation |
| 30 | * |
| 31 | * Modified, March 17, 1997 by Tuyen Nguyen for MacOSX. |
| 32 | */ |
| 33 | /* |
| 34 | * |
| 35 | * Router ZIP protocol functions: |
| 36 | * |
| 37 | * This file contains Routing specifics to handle ZIP requests and responses |
| 38 | * sent and received by a router node. |
| 39 | * |
| 40 | * The entry point for the zip input in ddp is valid only when we're |
| 41 | * running in router mode. |
| 42 | * |
| 43 | */ |
| 44 | |
| 45 | #include <sys/errno.h> |
| 46 | #include <sys/types.h> |
| 47 | #include <sys/param.h> |
| 48 | #include <machine/spl.h> |
| 49 | #include <sys/systm.h> |
| 50 | #include <sys/kernel.h> |
| 51 | #include <sys/proc.h> |
| 52 | #include <sys/filedesc.h> |
| 53 | #include <sys/fcntl.h> |
| 54 | #include <sys/mbuf.h> |
| 55 | #include <sys/ioctl.h> |
| 56 | #include <sys/malloc.h> |
| 57 | #include <sys/socket.h> |
| 58 | #include <sys/socketvar.h> |
| 59 | |
| 60 | #include <net/if.h> |
| 61 | #include <net/if_types.h> |
| 62 | |
| 63 | #include <netat/sysglue.h> |
| 64 | #include <netat/appletalk.h> |
| 65 | #include <netat/at_var.h> |
| 66 | #include <netat/ddp.h> |
| 67 | #include <netat/nbp.h> |
| 68 | #include <netat/zip.h> |
| 69 | #include <netat/at_pcb.h> |
| 70 | #include <netat/atp.h> |
| 71 | #include <netat/routing_tables.h> |
| 72 | #include <netat/debug.h> |
| 73 | |
| 74 | #include <sys/kern_event.h> |
| 75 | |
| 76 | static void zip_reply_to_getmyzone(); |
| 77 | extern int at_reg_mcast(), at_unreg_mcast(); |
| 78 | |
| 79 | /* globals */ |
| 80 | extern at_ifaddr_t *ifID_table[], *ifID_home; |
| 81 | extern short ErrorZIPoverflow; |
| 82 | |
| 83 | /********************************************************************** |
| 84 | * Remarks : |
| 85 | * ZIP is implemented as a "peer" of DDP, so the packets coming in |
| 86 | * to ZIP have the same headers as those coming in to DDP {ddp...}. |
| 87 | * Same applies to outgoing packets. Also, unlike DDP, ZIP assumes |
| 88 | * that an incoming packet is in a contiguous gbuf_t. |
| 89 | * |
| 90 | **********************************************************************/ |
| 91 | |
| 92 | static int netinfo_reply_pending; |
| 93 | static void zip_netinfo_reply(at_x_zip_t *, at_ifaddr_t *); |
| 94 | static void zip_getnetinfo(at_ifaddr_t *); |
| 95 | static void zip_getnetinfo_funnel(at_ifaddr_t *); |
| 96 | static void send_phony_reply(gbuf_t *); |
| 97 | |
| 98 | /* |
| 99 | * zip_send_getnetinfo_reply: we received a GetNetInfo packet, we need to reply |
| 100 | * with the right information for the port. |
| 101 | */ |
| 102 | static void zip_send_getnetinfo_reply(m, ifID) |
| 103 | register gbuf_t *m; |
| 104 | register at_ifaddr_t *ifID; |
| 105 | { |
| 106 | at_nvestr_t *zname; |
| 107 | gbuf_t *m_sent; |
| 108 | at_ddp_t *ddp, *ddp_sent; |
| 109 | short ZoneNameProvided = FALSE; |
| 110 | short RequestIsBroadcasted = FALSE; |
| 111 | u_short znumber, len, packet_length, size, status; |
| 112 | RT_entry *Entry; |
| 113 | char GNIReply[128]; |
| 114 | |
| 115 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 116 | |
| 117 | /* access the Zone Name info part of the GetNetInfo Request */ |
| 118 | |
| 119 | zname = (at_nvestr_t *)(gbuf_rptr(m) + DDP_X_HDR_SIZE + 6); |
| 120 | |
| 121 | if (zname->len > ZIP_MAX_ZONE_LENGTH) { |
| 122 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 123 | ("zip_s_gni_r: zone len too long l=%d ddplen=%d\n", |
| 124 | zname->len, DDPLEN_VALUE(ddp))); |
| 125 | return; |
| 126 | } |
| 127 | |
| 128 | |
| 129 | if (zname->len) |
| 130 | ZoneNameProvided = TRUE; |
| 131 | |
| 132 | GNIReply[0] = ZIP_NETINFO_REPLY; |
| 133 | GNIReply[1] = ZIP_ZONENAME_INVALID; |
| 134 | |
| 135 | /* check if we are the originator is in the cable range for this interface */ |
| 136 | |
| 137 | if ((NET_VALUE(ddp->src_net) < CableStart || NET_VALUE(ddp->src_net) > CableStop) && |
| 138 | (NET_VALUE(ddp->dst_net) == 0 && ddp->dst_node == 0xff)) { |
| 139 | RequestIsBroadcasted = TRUE; |
| 140 | } |
| 141 | Entry = rt_blookup(CableStop); |
| 142 | |
| 143 | if (Entry != NULL && RT_ALL_ZONES_KNOWN(Entry)) { /* this net is well known... */ |
| 144 | |
| 145 | GNIReply[2] = (Entry->NetStart & 0xFF00) >> 8; |
| 146 | GNIReply[3] = (Entry->NetStart & 0x00FF); |
| 147 | GNIReply[4] = (Entry->NetStop & 0xFF00) >> 8; |
| 148 | GNIReply[5] = (Entry->NetStop & 0x00FF); |
| 149 | |
| 150 | /* copy the zone name found in the request */ |
| 151 | |
| 152 | GNIReply[6] = zname->len; |
| 153 | bcopy(&zname->str, &GNIReply[7], zname->len); |
| 154 | |
| 155 | |
| 156 | if (znumber = zt_find_zname(zname)) { |
| 157 | |
| 158 | if (ZT_ISIN_ZMAP((znumber), Entry->ZoneBitMap)) { |
| 159 | |
| 160 | GNIReply[1] = 0; /* Zone Valid */ |
| 161 | |
| 162 | if (len = zt_get_zmcast(ifID, zname, &GNIReply[8+zname->len])) |
| 163 | GNIReply[7+zname->len] = len; |
| 164 | else { |
| 165 | GNIReply[1] |= ZIP_USE_BROADCAST; |
| 166 | GNIReply[7+zname->len] = 0; /* multicast address length */ |
| 167 | } |
| 168 | packet_length = 8 + zname->len + len; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | } |
| 173 | |
| 174 | else { /* should not happen, we are supposed to know our net */ |
| 175 | dPrintf(D_M_ZIP, D_L_WARNING, ("zip_s_gni_r: Don't know about our zone infos!!!\n")); |
| 176 | return; |
| 177 | } |
| 178 | |
| 179 | if (zt_ent_zcount(Entry) == 1) |
| 180 | GNIReply[1] |= ZIP_ONE_ZONE; |
| 181 | |
| 182 | if (GNIReply[1] & ZIP_ZONENAME_INVALID) { |
| 183 | |
| 184 | short Index = ifID->ifDefZone; |
| 185 | |
| 186 | if (Index <= 0 || Index >= ZT_MAXEDOUT) { |
| 187 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 188 | ("zip_s_gni_r: Invalid starting index =%d port%d\n", |
| 189 | Index, ifID->ifPort)); |
| 190 | return; |
| 191 | } |
| 192 | |
| 193 | |
| 194 | Index--; |
| 195 | |
| 196 | if (len = zt_get_zmcast(ifID, &ZT_table[Index].Zone, &GNIReply[8+zname->len])) |
| 197 | GNIReply[7+zname->len] = len; |
| 198 | else { |
| 199 | GNIReply[1] |= ZIP_USE_BROADCAST; |
| 200 | GNIReply[7+zname->len] = 0; /* multicast address length */ |
| 201 | } |
| 202 | |
| 203 | packet_length = 7 + zname->len + len; |
| 204 | |
| 205 | /* in the case the zone name asked for in the request was invalid, we need |
| 206 | * to copy the good default zone for this net |
| 207 | */ |
| 208 | |
| 209 | GNIReply[packet_length + 1] = ZT_table[Index].Zone.len; |
| 210 | bcopy(&ZT_table[Index].Zone.str, &GNIReply[packet_length + 2], |
| 211 | ZT_table[Index].Zone.len); |
| 212 | packet_length = packet_length +2 + ZT_table[Index].Zone.len; |
| 213 | } |
| 214 | |
| 215 | |
| 216 | /* |
| 217 | * we're finally ready to send out the GetNetInfo Reply |
| 218 | * |
| 219 | */ |
| 220 | |
| 221 | |
| 222 | size = DDP_X_HDR_SIZE + packet_length; |
| 223 | if ((m_sent = gbuf_alloc(AT_WR_OFFSET+size, PRI_HI)) == NULL) { |
| 224 | return; /* was return(ENOBUFS); */ |
| 225 | } |
| 226 | |
| 227 | gbuf_rinc(m_sent,AT_WR_OFFSET); |
| 228 | gbuf_wset(m_sent,size); |
| 229 | ddp_sent = (at_ddp_t *)(gbuf_rptr(m_sent)); |
| 230 | |
| 231 | /* Prepare the DDP header */ |
| 232 | |
| 233 | ddp_sent->unused = ddp_sent->hopcount = 0; |
| 234 | UAS_ASSIGN(ddp->checksum, 0); |
| 235 | DDPLEN_ASSIGN(ddp_sent, size); |
| 236 | NET_ASSIGN(ddp_sent->src_net, ifID->ifThisNode.s_net); |
| 237 | ddp_sent->src_node = ifID->ifThisNode.s_node; |
| 238 | ddp_sent->src_socket = ZIP_SOCKET; |
| 239 | ddp_sent->dst_socket = ddp->src_socket; |
| 240 | |
| 241 | if (RequestIsBroadcasted) { /* if this was a broadcast, must respond from that */ |
| 242 | |
| 243 | NET_ASSIGN(ddp_sent->dst_net, 0); |
| 244 | ddp_sent->dst_node = 0xFF; |
| 245 | } |
| 246 | else { |
| 247 | |
| 248 | NET_NET(ddp_sent->dst_net, ddp->src_net); |
| 249 | ddp_sent->dst_node = ddp->src_node; |
| 250 | } |
| 251 | ddp_sent->type = DDP_ZIP; |
| 252 | |
| 253 | bcopy(&GNIReply, &ddp_sent->data, packet_length); |
| 254 | |
| 255 | dPrintf(D_M_ZIP_LOW, D_L_ROUTING, |
| 256 | ("zip_s_gni_r: send to %d:%d port#%d pack_len=%d\n", |
| 257 | NET_VALUE(ddp_sent->dst_net), ddp_sent->dst_node, |
| 258 | ifID->ifPort, packet_length)); |
| 259 | if ((status = |
| 260 | ddp_router_output(m_sent, ifID, AT_ADDR, |
| 261 | NET_VALUE(ddp_sent->dst_net), ddp_sent->dst_node, 0))) { |
| 262 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 263 | ("zip_s_gni_r: ddp_router_output returns =%d\n", status)); |
| 264 | return; /* was return(status); */ |
| 265 | } |
| 266 | } /* zip_send_getnetinfo_reply */ |
| 267 | |
| 268 | |
| 269 | /* |
| 270 | * build_ZIP_reply_packet: is used to create and send a DDP packet and use the |
| 271 | * provided buffer as a ZIP reply. This is used by zip_send_ext_reply_to_query |
| 272 | * and zip_send_reply_to_query for sending their replies to ZIP queries. |
| 273 | */ |
| 274 | gbuf_t *prep_ZIP_reply_packet(m, ifID) |
| 275 | register gbuf_t *m; /* this is the original zip query */ |
| 276 | register at_ifaddr_t *ifID; |
| 277 | { |
| 278 | register gbuf_t *m_sent; |
| 279 | register at_ddp_t *ddp, *src_ddp; |
| 280 | |
| 281 | /* access the source Net and Node informations */ |
| 282 | |
| 283 | src_ddp = (at_ddp_t *)gbuf_rptr(m); |
| 284 | |
| 285 | if ((m_sent = gbuf_alloc (AT_WR_OFFSET+1024, PRI_HI)) == NULL) { |
| 286 | return((gbuf_t *)NULL); |
| 287 | } |
| 288 | gbuf_rinc(m_sent,AT_WR_OFFSET); |
| 289 | gbuf_wset(m_sent,DDP_X_HDR_SIZE); |
| 290 | ddp = (at_ddp_t *)(gbuf_rptr(m_sent)); |
| 291 | |
| 292 | /* Prepare the DDP header */ |
| 293 | |
| 294 | ddp->unused = ddp->hopcount = 0; |
| 295 | UAS_ASSIGN(ddp->checksum, 0); |
| 296 | |
| 297 | NET_ASSIGN(ddp->src_net, ifID->ifThisNode.s_net); |
| 298 | ddp->src_node = ifID->ifThisNode.s_node; |
| 299 | ddp->src_socket = ZIP_SOCKET; |
| 300 | |
| 301 | ddp->dst_socket = src_ddp->src_socket; |
| 302 | NET_NET(ddp->dst_net, src_ddp->src_net); |
| 303 | ddp->dst_node = src_ddp->src_node; |
| 304 | |
| 305 | ddp->type = DDP_ZIP; |
| 306 | |
| 307 | return(m_sent); |
| 308 | } |
| 309 | /* |
| 310 | * zip_send_ext_reply_to_query: this function deals with ZIP Queries for extended nets. |
| 311 | * When we recognize an extended net (that might have several zone name associated with |
| 312 | * it), we send A SEPARATE ZIP reply for that network. This is called from the |
| 313 | * regular zip_send_reply_to_query, that just deals with non-ext nets. |
| 314 | */ |
| 315 | |
| 316 | static void zip_send_ext_reply_to_query(mreceived, ifID, Entry, NetAsked) |
| 317 | register gbuf_t *mreceived; |
| 318 | register at_ifaddr_t *ifID; |
| 319 | RT_entry *Entry; /* info about the network we're looking for */ |
| 320 | u_short NetAsked; |
| 321 | { |
| 322 | register gbuf_t *m; |
| 323 | register at_ddp_t *ddp; |
| 324 | short i, j, reply_length, Index, zone_count, status; |
| 325 | u_char *zmap; |
| 326 | char *ReplyBuff, *ZonesInPacket; |
| 327 | |
| 328 | zone_count = zt_ent_zcount(Entry); |
| 329 | zmap = Entry->ZoneBitMap; |
| 330 | i = ZT_BYTES -1; |
| 331 | |
| 332 | |
| 333 | newPacket: |
| 334 | |
| 335 | if (!(m = prep_ZIP_reply_packet (mreceived, ifID))) { |
| 336 | return; /* was return(ENOBUFS); */ |
| 337 | } |
| 338 | |
| 339 | ddp = (at_ddp_t *)(gbuf_rptr(m)); |
| 340 | ReplyBuff = (char *)(ddp->data); |
| 341 | |
| 342 | |
| 343 | *ReplyBuff++ = 8; /* ZIP function = 8 [extended reply] */ |
| 344 | |
| 345 | ZonesInPacket= ReplyBuff; |
| 346 | *ZonesInPacket= 0; |
| 347 | ReplyBuff ++; |
| 348 | reply_length = 2; /* 1st byte is ZIP reply code, 2nd is network count */ |
| 349 | j= 0; |
| 350 | |
| 351 | /* For all zones, we check if they belong to the map for that Network */ |
| 352 | |
| 353 | for (; i >= 0; i--) { |
| 354 | |
| 355 | /* find the zones defined in this entry bitmap */ |
| 356 | |
| 357 | if (zmap[i]) { |
| 358 | for (; j < 8 ; j++) |
| 359 | if (zmap[i] << j & 0x80) { /* bingo */ |
| 360 | |
| 361 | Index = i*8 + j; /* zone index in zone table */ |
| 362 | |
| 363 | if (reply_length + 3 + ZT_table[Index].Zone.len > DDP_DATA_SIZE) { |
| 364 | |
| 365 | /* we need to send the packet before, this won't fit... */ |
| 366 | |
| 367 | zone_count -= *ZonesInPacket; |
| 368 | |
| 369 | DDPLEN_ASSIGN(ddp, reply_length + DDP_X_HDR_SIZE); |
| 370 | gbuf_winc(m,reply_length); |
| 371 | if ((status = |
| 372 | ddp_router_output(m, ifID, AT_ADDR, |
| 373 | NET_VALUE(ddp->dst_net), ddp->dst_node, 0))) { |
| 374 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 375 | ("zip_s_ext_repl: ddp_router_output returns =%d\n", |
| 376 | status)); |
| 377 | return; /* was return (status); */ |
| 378 | } |
| 379 | |
| 380 | goto newPacket; |
| 381 | |
| 382 | } |
| 383 | /* this should fit in this packet, build the NetNumber, ZoneLen, |
| 384 | * ZoneName triple |
| 385 | */ |
| 386 | |
| 387 | if (ZT_table[Index].Zone.len) { |
| 388 | *ZonesInPacket += 1; /* bump NetCount field */ |
| 389 | *ReplyBuff++ = (NetAsked & 0xFF00) >> 8; |
| 390 | *ReplyBuff++ = (NetAsked & 0x00FF) ; |
| 391 | *ReplyBuff++ = ZT_table[Index].Zone.len; |
| 392 | |
| 393 | bcopy(&ZT_table[Index].Zone.str, ReplyBuff, |
| 394 | ZT_table[Index].Zone.len); |
| 395 | |
| 396 | ReplyBuff += ZT_table[Index].Zone.len; |
| 397 | reply_length += ZT_table[Index].Zone.len +3; |
| 398 | } |
| 399 | |
| 400 | } |
| 401 | } |
| 402 | j= 0; /* reset the bit count */ |
| 403 | } |
| 404 | |
| 405 | /* if we have some zone info in a half-empty packet, send it now. |
| 406 | * Remember, for extended nets we send *at least* one Reply |
| 407 | */ |
| 408 | |
| 409 | if (zone_count) { |
| 410 | DDPLEN_ASSIGN(ddp, reply_length + DDP_X_HDR_SIZE); |
| 411 | gbuf_winc(m,reply_length); |
| 412 | if ((status = |
| 413 | ddp_router_output(m, ifID, AT_ADDR, |
| 414 | NET_VALUE(ddp->dst_net), ddp->dst_node, 0))) { |
| 415 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 416 | ("zip_s_ext_reply: ddp_router_output returns =%d\n", status)); |
| 417 | return; /* was return (status); */ |
| 418 | } |
| 419 | } |
| 420 | else /* free the buffer not used */ |
| 421 | |
| 422 | gbuf_freem(m); |
| 423 | } /* zip_send_ext_reply_to_query */ |
| 424 | |
| 425 | /* |
| 426 | * zip_send_reply_to_query: we received a ZIPQuery packet, we need to reply |
| 427 | * with the right information for the nets requested (if we have |
| 428 | * the right information. |
| 429 | */ |
| 430 | static void zip_send_reply_to_query(mreceived, ifID) |
| 431 | register gbuf_t *mreceived; |
| 432 | register at_ifaddr_t *ifID; |
| 433 | { |
| 434 | register gbuf_t *m; |
| 435 | register at_ddp_t *ddp, *ddp_received; |
| 436 | RT_entry *Entry; |
| 437 | short i, reply_length, Index, status; |
| 438 | u_char network_count; |
| 439 | u_short *NetAsked; |
| 440 | char *ReplyBuff, *ZonesInPacket; |
| 441 | |
| 442 | ddp_received = (at_ddp_t *)gbuf_rptr(mreceived); |
| 443 | |
| 444 | /* access the number of nets requested in the Query */ |
| 445 | network_count = *((char *)(ddp_received->data) + 1); |
| 446 | NetAsked = (u_short *)(ddp_received->data+ 2); |
| 447 | |
| 448 | /* check the validity of the Query packet */ |
| 449 | |
| 450 | if (DDPLEN_VALUE(ddp_received) != |
| 451 | (2 + network_count * 2 + DDP_X_HDR_SIZE)) { |
| 452 | |
| 453 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 454 | ("zip_s_reply_to_q: bad length netcount=%d len=%d\n", |
| 455 | network_count, DDPLEN_VALUE(ddp))); |
| 456 | return; /* was return(1); */ |
| 457 | } |
| 458 | |
| 459 | /* walk the Query Network list */ |
| 460 | /* we want to build a response with the network number followed by the zone name |
| 461 | * length and the zone name. If there is more than one zone per network asked, |
| 462 | * we repeat the network number and stick the zone length and zone name. |
| 463 | * We need to be carefull with the max DDP size for data. If we see that a new |
| 464 | * NetNum, ZoneLen, ZoneName sequence won't fit, we send the previous packet and |
| 465 | * begin to build a new one. |
| 466 | */ |
| 467 | |
| 468 | newPacket: |
| 469 | |
| 470 | if (!(m = prep_ZIP_reply_packet (mreceived, ifID))) { |
| 471 | return; /* was return(ENOBUFS); */ |
| 472 | } |
| 473 | |
| 474 | ddp = (at_ddp_t *)(gbuf_rptr(m)); |
| 475 | ReplyBuff = (char *)(ddp->data); |
| 476 | |
| 477 | *ReplyBuff++ = 2; /* ZIP function = 2 [Non extended reply] */ |
| 478 | ZonesInPacket = ReplyBuff; |
| 479 | *ZonesInPacket = 0; |
| 480 | ReplyBuff++; |
| 481 | reply_length = 2; /* 1st byte is ZIP reply code, 2nd is network count */ |
| 482 | |
| 483 | for (i = 0 ; i < network_count ; i ++, NetAsked++) { |
| 484 | Entry = rt_blookup(*NetAsked); |
| 485 | |
| 486 | if (Entry != NULL && ((Entry->EntryState & 0x0F) >= RTE_STATE_SUSPECT) && |
| 487 | RT_ALL_ZONES_KNOWN(Entry)) { /* this net is well known... */ |
| 488 | |
| 489 | if (Entry->NetStart == 0) { /* asking for a NON EXTENDED network */ |
| 490 | |
| 491 | if ( (Index = zt_ent_zindex(Entry->ZoneBitMap)) == 0) |
| 492 | continue; |
| 493 | |
| 494 | Index--; |
| 495 | |
| 496 | if (reply_length + 3 + ZT_table[Index].Zone.len > DDP_DATA_SIZE) { |
| 497 | |
| 498 | /* we need to send the packet before, this won't fit... */ |
| 499 | |
| 500 | DDPLEN_ASSIGN(ddp, reply_length + DDP_X_HDR_SIZE); |
| 501 | gbuf_winc(m,reply_length); |
| 502 | |
| 503 | if ((status = |
| 504 | ddp_router_output(m, ifID, AT_ADDR, |
| 505 | NET_VALUE(ddp->dst_net), |
| 506 | ddp->dst_node, 0))) { |
| 507 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 508 | ("zip_s_reply: ddp_router_output returns =%d\n", |
| 509 | status)); |
| 510 | return; /* was return (status); */ |
| 511 | } |
| 512 | |
| 513 | /* this is not nice, I know, but we reenter the loop with |
| 514 | * a packet is sent with the next network field in the Query |
| 515 | */ |
| 516 | |
| 517 | network_count -= i; |
| 518 | goto newPacket; |
| 519 | |
| 520 | } |
| 521 | |
| 522 | /* this should fit in this packet, build the NetNumber, ZoneLen, |
| 523 | * ZoneName triple |
| 524 | */ |
| 525 | |
| 526 | if (ZT_table[Index].Zone.len) { |
| 527 | ZonesInPacket += 1; /* bump NetCount field */ |
| 528 | *ReplyBuff++ = (*NetAsked & 0xFF00) >> 8; |
| 529 | *ReplyBuff++ = (*NetAsked & 0x00FF) ; |
| 530 | *ReplyBuff++ = ZT_table[Index].Zone.len; |
| 531 | bcopy(&ZT_table[Index].Zone.str, ReplyBuff, |
| 532 | ZT_table[Index].Zone.len); |
| 533 | |
| 534 | ReplyBuff += ZT_table[Index].Zone.len; |
| 535 | |
| 536 | reply_length += ZT_table[Index].Zone.len + 3; |
| 537 | |
| 538 | |
| 539 | } |
| 540 | |
| 541 | |
| 542 | } |
| 543 | else { /* extended network, check for multiple zone name attached |
| 544 | * and build a separate packet for each extended network requested |
| 545 | */ |
| 546 | |
| 547 | zip_send_ext_reply_to_query(mreceived, ifID, Entry, *NetAsked); |
| 548 | |
| 549 | } |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | /* If we have a non extended packet (code 2) with some stuff in it, |
| 554 | * we need to send it now |
| 555 | */ |
| 556 | |
| 557 | if ( reply_length > 2) { |
| 558 | DDPLEN_ASSIGN(ddp, reply_length + DDP_X_HDR_SIZE); |
| 559 | gbuf_winc(m,reply_length); |
| 560 | if ((status = |
| 561 | ddp_router_output(m, ifID, AT_ADDR, |
| 562 | NET_VALUE(ddp->dst_net), |
| 563 | ddp->dst_node, 0))) { |
| 564 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 565 | ("zip_send_reply: ddp_router_output returns =%d\n", status)); |
| 566 | return; /* was return (status); */ |
| 567 | } |
| 568 | } |
| 569 | else /* free the buffer not used */ |
| 570 | gbuf_freem(m); |
| 571 | } /* zip_send_reply_to_query */ |
| 572 | |
| 573 | /*********************************************************************** |
| 574 | * zip_router_input() |
| 575 | * |
| 576 | **********************************************************************/ |
| 577 | |
| 578 | void zip_router_input (m, ifID) |
| 579 | register gbuf_t *m; |
| 580 | register at_ifaddr_t *ifID; |
| 581 | { |
| 582 | register at_ddp_t *ddp; |
| 583 | register at_atp_t *atp; |
| 584 | register at_zip_t *zip; |
| 585 | register u_long user_bytes; |
| 586 | register u_short user_byte; |
| 587 | |
| 588 | /* variables for ZipNotify processing */ |
| 589 | register char old_zone_len; |
| 590 | register char new_zone_len; |
| 591 | register char *old_zone; |
| 592 | char *new_zone; |
| 593 | void zip_sched_getnetinfo(); /* forward reference */ |
| 594 | |
| 595 | if (gbuf_type(m) != MSG_DATA) { |
| 596 | /* If this is a M_ERROR message, DDP is shutting down, |
| 597 | * nothing to do here...If it's something else, we don't |
| 598 | * understand what it is |
| 599 | */ |
| 600 | dPrintf(D_M_ZIP, D_L_WARNING, ("zip_router_input: not an M_DATA message\n")); |
| 601 | gbuf_freem(m); |
| 602 | return; |
| 603 | } |
| 604 | |
| 605 | if (!ifID) { |
| 606 | dPrintf(D_M_ZIP, D_L_WARNING, ("zip_router_input: BAD ifID\n")); |
| 607 | gbuf_freem(m); |
| 608 | return; |
| 609 | } |
| 610 | |
| 611 | /* |
| 612 | * The ZIP listener receives two types of requests: |
| 613 | * |
| 614 | * ATP requests: GetZoneList, GetLocalZone, or GetMyZone |
| 615 | * ZIP requests: Netinfo, Query, Reply, takedown, bringup |
| 616 | */ |
| 617 | |
| 618 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 619 | |
| 620 | if (ddp->type == DDP_ZIP) { |
| 621 | zip = (at_zip_t *)(gbuf_rptr(m) + DDP_X_HDR_SIZE); |
| 622 | dPrintf(D_M_ZIP_LOW, D_L_INPUT, |
| 623 | ("zip_input: received a ZIP_DDP command=%d\n", |
| 624 | zip->command)); |
| 625 | switch (zip->command) { |
| 626 | case ZIP_QUERY : /* we received a Zip Query request */ |
| 627 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 628 | ("zip_input: Received a Zip Query in from %d.%d\n", |
| 629 | NET_VALUE(ddp->src_net), ddp->src_node)); |
| 630 | |
| 631 | if (!RT_LOOKUP_OKAY(ifID, ddp)) { |
| 632 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 633 | ("zip_input:: refused ZIP_QUERY from %d:%d\n", |
| 634 | NET_VALUE(ddp->src_net), ddp->src_node)); |
| 635 | } |
| 636 | else |
| 637 | zip_send_reply_to_query(m, ifID); |
| 638 | gbuf_freem(m); |
| 639 | break; |
| 640 | |
| 641 | case ZIP_REPLY : /* we received a Zip Query Reply packet */ |
| 642 | case ZIP_EXTENDED_REPLY: |
| 643 | if (ifID->ifRoutingState == PORT_OFFLINE) { |
| 644 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 645 | ("zip_input: Received a Zip Reply in user mode\n")); |
| 646 | } |
| 647 | else |
| 648 | zip_reply_received(m, ifID, zip->command); |
| 649 | gbuf_freem(m); |
| 650 | break; |
| 651 | |
| 652 | case ZIP_TAKEDOWN : |
| 653 | /* we received a Zip Takedown packet */ |
| 654 | dPrintf(D_M_ZIP, D_L_WARNING, ("zip_input: Received a Zip takedown!!!\n")); |
| 655 | gbuf_freem(m); |
| 656 | break; |
| 657 | |
| 658 | case ZIP_BRINGUP : |
| 659 | /* we received a Zip BringUp packet */ |
| 660 | dPrintf(D_M_ZIP, D_L_WARNING, ("zip_input: Received a Zip BringUp!!!\n")); |
| 661 | gbuf_freem(m); |
| 662 | break; |
| 663 | |
| 664 | case ZIP_GETNETINFO: /* we received a GetNetInfo request */ |
| 665 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 666 | ("zip_input: Received a GetNetInfo Req in from %d.%d\n", |
| 667 | NET_VALUE(ddp->src_net), ddp->src_node)); |
| 668 | if (RT_LOOKUP_OKAY(ifID, ddp)) { |
| 669 | dPrintf(D_M_ZIP, D_L_OUTPUT, |
| 670 | ("zip_input: we, as node %d:%d send GNI reply to %d:%d\n", |
| 671 | ifID->ifThisNode.s_net, ifID->ifThisNode.s_node, |
| 672 | NET_VALUE(ddp->src_net), ddp->src_node)); |
| 673 | zip_send_getnetinfo_reply(m, ifID); |
| 674 | } |
| 675 | gbuf_freem(m); |
| 676 | break; |
| 677 | |
| 678 | |
| 679 | case ZIP_NETINFO_REPLY : |
| 680 | |
| 681 | /* If we are not waiting for a GetNetInfo reply |
| 682 | * to arrive, this must be a broadcast |
| 683 | * message for someone else on the zone, so |
| 684 | * no need to even look at it! |
| 685 | */ |
| 686 | if (!ROUTING_MODE && |
| 687 | ((NET_VALUE(ddp->src_net) != ifID->ifThisNode.s_net) || |
| 688 | (ddp->src_node != ifID->ifThisNode.s_node)) && netinfo_reply_pending) |
| 689 | { |
| 690 | extern void trackrouter(); |
| 691 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 692 | ("zip_input: Received a GetNetInfo Reply from %d.%d\n", |
| 693 | NET_VALUE(ddp->src_net), ddp->src_node)); |
| 694 | trackrouter(ifID, NET_VALUE(ddp->src_net), ddp->src_node); |
| 695 | zip_netinfo_reply((at_x_zip_t *)zip, ifID); |
| 696 | } |
| 697 | |
| 698 | gbuf_freem(m); |
| 699 | break; |
| 700 | |
| 701 | case ZIP_NOTIFY : |
| 702 | /* processing of ZipNotify message : first, change |
| 703 | * our zone name, then if NIS is open, let NBP demon |
| 704 | process know of this change...(just forward the |
| 705 | * Notify packet |
| 706 | */ |
| 707 | /* First, check if this is really a packet for us */ |
| 708 | old_zone = &zip->data[4]; |
| 709 | if (!zonename_equal(&ifID->ifZoneName, |
| 710 | (at_nvestr_t *)old_zone)) { |
| 711 | /* the old zone name in the packet is not the |
| 712 | * same as ours, so this packet couldn't be |
| 713 | * for us. |
| 714 | */ |
| 715 | gbuf_freem(m); |
| 716 | break; |
| 717 | |
| 718 | } |
| 719 | old_zone_len = *old_zone; |
| 720 | new_zone_len = zip->data[4 + old_zone_len + 1]; |
| 721 | new_zone = old_zone + old_zone_len; |
| 722 | |
| 723 | /* Reset the zone multicast address */ |
| 724 | (void)at_unreg_mcast(ifID, (caddr_t)&ifID->ZoneMcastAddr); |
| 725 | bzero((caddr_t)&ifID->ZoneMcastAddr, ETHERNET_ADDR_LEN); |
| 726 | |
| 727 | /* change the zone name - copy both the length and the string */ |
| 728 | bcopy((caddr_t)new_zone, (caddr_t)&ifID->ifZoneName, |
| 729 | new_zone_len+1); |
| 730 | |
| 731 | /* Send network zone change event and new zone for this interface. */ |
| 732 | atalk_post_msg(ifID->aa_ifp, KEV_ATALK_ZONEUPDATED, 0, &(ifID->ifZoneName)); |
| 733 | atalk_post_msg(ifID->aa_ifp, KEV_ATALK_ZONELISTCHANGED, 0, 0); |
| 734 | |
| 735 | /* add the new zone to the list of local zones */ |
| 736 | if (!MULTIPORT_MODE && !DEFAULT_ZONE(&ifID->ifZoneName)) |
| 737 | (void)setLocalZones(&ifID->ifZoneName, |
| 738 | (ifID->ifZoneName.len+1)); |
| 739 | |
| 740 | /* Before trying to request our new multicast address, |
| 741 | * wait a while... someone might have alredy requested |
| 742 | * it, so we may see some broadcast messages flying |
| 743 | * by... Set up the structures so that it appears that |
| 744 | * we have already requested the NetInfo. |
| 745 | */ |
| 746 | ifID->ifNumRetries = ZIP_NETINFO_RETRIES; |
| 747 | netinfo_reply_pending = 1; |
| 748 | timeout(zip_sched_getnetinfo, (caddr_t) ifID, |
| 749 | 2*ZIP_TIMER_INT); |
| 750 | |
| 751 | gbuf_freem(m); |
| 752 | break; |
| 753 | default : |
| 754 | routing_needed(m, ifID, TRUE); |
| 755 | break; |
| 756 | } |
| 757 | } |
| 758 | else if (ddp->type == DDP_ATP && |
| 759 | RT_LOOKUP_OKAY(ifID, ddp)) { |
| 760 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 761 | atp = (at_atp_t *)(gbuf_rptr(m)+DDP_X_HDR_SIZE); |
| 762 | else |
| 763 | atp = (at_atp_t *)(gbuf_rptr(gbuf_cont(m))); |
| 764 | |
| 765 | /* Get the user bytes in network order */ |
| 766 | |
| 767 | user_bytes = UAL_VALUE(atp->user_bytes); |
| 768 | user_byte = user_bytes >> 24; /* Get the zeroth byte */ |
| 769 | |
| 770 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 771 | ("zip_input: received a ZIP_ATP command=%d\n", user_byte)); |
| 772 | |
| 773 | switch (user_byte) { |
| 774 | case ZIP_GETMYZONE: |
| 775 | zip_reply_to_getmyzone(ifID, m); |
| 776 | gbuf_freem(m); |
| 777 | break; |
| 778 | |
| 779 | case ZIP_GETZONELIST: |
| 780 | zip_reply_to_getzonelist(ifID, m); |
| 781 | gbuf_freem(m); |
| 782 | break; |
| 783 | |
| 784 | case ZIP_GETLOCALZONES: |
| 785 | zip_reply_to_getlocalzones(ifID, m); |
| 786 | gbuf_freem(m); |
| 787 | break; |
| 788 | |
| 789 | default: |
| 790 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 791 | ("zip_input: received unknown ZIP_ATP command=%d\n", user_byte)); |
| 792 | routing_needed(m, ifID, TRUE); |
| 793 | break; |
| 794 | } |
| 795 | } else { |
| 796 | gbuf_freem(m); |
| 797 | } |
| 798 | return; |
| 799 | } /* zip_router_input */ |
| 800 | |
| 801 | /*********************************************************************** |
| 802 | * zonename_equal() |
| 803 | * |
| 804 | * Remarks : |
| 805 | * |
| 806 | **********************************************************************/ |
| 807 | int zonename_equal (zone1, zone2) |
| 808 | register at_nvestr_t *zone1, *zone2; |
| 809 | { |
| 810 | register char c1, c2; |
| 811 | char upshift8(); |
| 812 | register int i; |
| 813 | |
| 814 | if (zone1->len != zone2->len) |
| 815 | return(0); |
| 816 | |
| 817 | for (i=0; i< (int) zone1->len; i++) { |
| 818 | c1 = zone1->str[i]; |
| 819 | c2 = zone2->str[i]; |
| 820 | if (c1 >= 'a' && c1 <= 'z') |
| 821 | c1 += 'A' - 'a'; |
| 822 | if (c2 >= 'a' && c2 <= 'z') |
| 823 | c2 += 'A' - 'a'; |
| 824 | if (c1 & 0x80) |
| 825 | c1 = upshift8(c1); |
| 826 | if (c2 & 0x80) |
| 827 | c2 = upshift8(c2); |
| 828 | if (c1 != c2) |
| 829 | return(0); |
| 830 | } |
| 831 | return(1); |
| 832 | } |
| 833 | |
| 834 | |
| 835 | char upshift8 (ch) |
| 836 | register char ch; |
| 837 | { |
| 838 | register int i; |
| 839 | |
| 840 | static unsigned char lower_case[] = |
| 841 | {0x8a, 0x8c, 0x8d, 0x8e, 0x96, 0x9a, 0x9f, 0xbe, |
| 842 | 0xbf, 0xcf, 0x9b, 0x8b, 0x88, 0}; |
| 843 | static unsigned char upper_case[] = |
| 844 | {0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0xae, |
| 845 | 0xaf, 0xce, 0xcd, 0xcc, 0xcb, 0}; |
| 846 | |
| 847 | for (i=0; lower_case[i]; i++) |
| 848 | if (ch == lower_case[i]) |
| 849 | return (upper_case[i]); |
| 850 | |
| 851 | return(ch); |
| 852 | } |
| 853 | |
| 854 | |
| 855 | /*********************************************************************** |
| 856 | * zip_netinfo_reply () |
| 857 | * |
| 858 | * Remarks : |
| 859 | * |
| 860 | **********************************************************************/ |
| 861 | static void zip_netinfo_reply (netinfo, ifID) |
| 862 | register at_x_zip_t *netinfo; |
| 863 | register at_ifaddr_t *ifID; |
| 864 | { |
| 865 | u_char mcast_len; |
| 866 | void zip_sched_getnetinfo(); /* forward reference */ |
| 867 | register at_net_al this_net; |
| 868 | char *default_zone; |
| 869 | register u_char zone_name_len; |
| 870 | |
| 871 | /* There may be multiple zones on the cable.... we need to |
| 872 | * worry about whether or not this packet is addressed |
| 873 | * to us. |
| 874 | */ |
| 875 | /* *** Do we really need to check this? *** */ |
| 876 | if (!zonename_equal((at_nvestr_t *)netinfo->data, &ifID->ifZoneName)) { |
| 877 | dPrintf(D_M_ZIP, D_L_INFO, ("zip_netinfo_reply, !zonename_equal!!!")); |
| 878 | return; |
| 879 | } |
| 880 | |
| 881 | ifID->ifThisCableStart = NET_VALUE(netinfo->cable_range_start); |
| 882 | ifID->ifThisCableEnd = NET_VALUE(netinfo->cable_range_end); |
| 883 | dPrintf(D_M_ZIP, D_L_OUTPUT, ("Zip_netinfo_reply: Set cable to %d-%d\n", |
| 884 | ifID->ifThisCableStart, ifID->ifThisCableEnd)); |
| 885 | |
| 886 | /* The packet is in response to our request */ |
| 887 | untimeout (zip_sched_getnetinfo, (caddr_t) ifID); |
| 888 | netinfo_reply_pending = 0; |
| 889 | zone_name_len = netinfo->data[0]; |
| 890 | mcast_len = netinfo->data[zone_name_len + 1]; |
| 891 | |
| 892 | if (netinfo->flags & ZIP_ZONENAME_INVALID) { |
| 893 | /* copy out the default zone name from packet */ |
| 894 | default_zone = (char *)&netinfo->data[zone_name_len+1+mcast_len+1]; |
| 895 | bcopy((caddr_t)default_zone, (caddr_t)&ifID->ifZoneName, |
| 896 | *default_zone + 1); |
| 897 | } |
| 898 | |
| 899 | /* add the new zone to the list of local zones */ |
| 900 | if (!MULTIPORT_MODE && !DEFAULT_ZONE(&ifID->ifZoneName)) |
| 901 | (void)setLocalZones(&ifID->ifZoneName, (ifID->ifZoneName.len+1)); |
| 902 | |
| 903 | /* get the multicast address out of the GetNetInfo reply, if there is one */ |
| 904 | if (!(netinfo->flags & ZIP_USE_BROADCAST)) { |
| 905 | /* If ZIP_USE_BROADCAST is set, we will use the cable |
| 906 | broadcast address as the multicast address, however |
| 907 | the cable multicast address has already been registered. |
| 908 | */ |
| 909 | /* This packet contains a multicast address, so |
| 910 | * send to elap to register it. |
| 911 | */ |
| 912 | if (FDDI_OR_TOKENRING(ifID->aa_ifp->if_type)) |
| 913 | ddp_bit_reverse(&netinfo->data[zone_name_len + 2]); |
| 914 | |
| 915 | bcopy((caddr_t)&netinfo->data[zone_name_len + 2], |
| 916 | (caddr_t)&ifID->ZoneMcastAddr, ETHERNET_ADDR_LEN); |
| 917 | (void)at_reg_mcast(ifID, (caddr_t)&ifID->ZoneMcastAddr); |
| 918 | } |
| 919 | |
| 920 | this_net = ifID->ifThisNode.s_net; |
| 921 | if ((this_net >= ifID->ifThisCableStart) && |
| 922 | (this_net <= ifID->ifThisCableEnd)) { |
| 923 | /* ThisNet is in the range of valid network numbers |
| 924 | * for the cable. Do nothing. |
| 925 | */ |
| 926 | } else { |
| 927 | /* ThisNet is not in the range of valid network |
| 928 | * numbers for the cable. This may be either because |
| 929 | * the chosen number was from start-up range, or |
| 930 | * because the user has a misconception of where the |
| 931 | * machine is!! Since ThisCableRange is set up, next |
| 932 | * time aarp is invoked, it would select address in |
| 933 | * the right range. |
| 934 | */ |
| 935 | |
| 936 | /* to reset initial_net and initial_node to zero, so |
| 937 | * that aarp is forced to choose new values |
| 938 | */ |
| 939 | ifID->initial_addr.s_net = 0; |
| 940 | ifID->initial_addr.s_node = 0; |
| 941 | |
| 942 | /* Wake up elap_online sleeping on this interface. */ |
| 943 | ZIPwakeup(ifID, ZIP_RE_AARP); |
| 944 | return; |
| 945 | } |
| 946 | |
| 947 | if (!ifID->startup_inprogress) { |
| 948 | /* Send event with zone info. This covers case where we get zone info |
| 949 | after startup. During startup this event is sent from ZIPwakeup. */ |
| 950 | atalk_post_msg(ifID->aa_ifp, KEV_ATALK_ZONEUPDATED, 0, &(ifID->ifZoneName)); |
| 951 | } |
| 952 | |
| 953 | ZIPwakeup(ifID, 0); /* no error */ |
| 954 | return; |
| 955 | } /* zip_netinfo_reply */ |
| 956 | |
| 957 | |
| 958 | /********************************************************************** |
| 959 | * zip_control() |
| 960 | * |
| 961 | **********************************************************************/ |
| 962 | int zip_control (ifID, control) |
| 963 | register at_ifaddr_t *ifID; |
| 964 | int control; |
| 965 | { |
| 966 | dPrintf(D_M_ZIP, D_L_INFO, ("zip_control called port=%d control=%d\n", |
| 967 | ifID->ifPort, control)); |
| 968 | switch (control) { |
| 969 | case ZIP_ONLINE : |
| 970 | case ZIP_LATE_ROUTER : |
| 971 | ifID->ifNumRetries = 0; |
| 972 | /* Get the desired zone name from elap and put it in |
| 973 | * ifID for zip_getnetinfo() to use. |
| 974 | */ |
| 975 | if (ifID->startup_zone.len) |
| 976 | ifID->ifZoneName = ifID->startup_zone; |
| 977 | zip_getnetinfo(ifID); |
| 978 | break; |
| 979 | case ZIP_NO_ROUTER : |
| 980 | ifID->ifZoneName.len = 1; |
| 981 | ifID->ifZoneName.str[0] = '*'; |
| 982 | ifID->ifZoneName.str[1] = '\0'; |
| 983 | |
| 984 | /* Send event with zone info. */ |
| 985 | atalk_post_msg(ifID->aa_ifp, KEV_ATALK_ZONEUPDATED, 0, &(ifID->ifZoneName)); |
| 986 | |
| 987 | break; |
| 988 | default : |
| 989 | break; |
| 990 | } |
| 991 | return (0); |
| 992 | } |
| 993 | |
| 994 | /* funnel version of zip_getnetinfo */ |
| 995 | static void zip_getnetinfo_funnel(ifID) |
| 996 | register at_ifaddr_t *ifID; |
| 997 | { |
| 998 | thread_funnel_set(network_flock, TRUE); |
| 999 | zip_getnetinfo(ifID); |
| 1000 | thread_funnel_set(network_flock, FALSE); |
| 1001 | } |
| 1002 | |
| 1003 | |
| 1004 | /********************************************************************** |
| 1005 | * zip_getnetinfo() |
| 1006 | * |
| 1007 | **********************************************************************/ |
| 1008 | static void zip_getnetinfo (ifID) |
| 1009 | register at_ifaddr_t *ifID; |
| 1010 | { |
| 1011 | register at_x_zip_t *zip; |
| 1012 | gbuf_t *m; |
| 1013 | register at_ddp_t *ddp; |
| 1014 | void zip_sched_getnetinfo(); |
| 1015 | register struct atalk_addr *at_dest; |
| 1016 | register int size; |
| 1017 | |
| 1018 | size = DDP_X_HDR_SIZE + ZIP_X_HDR_SIZE + ifID->ifZoneName.len + 1 |
| 1019 | + sizeof(struct atalk_addr) + 1; |
| 1020 | if ((m = gbuf_alloc (AT_WR_OFFSET+size, PRI_HI)) == NULL) { |
| 1021 | /* This time, we're unable to allocate buffer to |
| 1022 | * send a packet out, so schedule to send a packet |
| 1023 | * out later, and exit. |
| 1024 | */ |
| 1025 | dPrintf(D_M_ZIP, D_L_WARNING, ("zip_getnetinfo: no buffer, call later port=%d\n", |
| 1026 | ifID->ifPort)); |
| 1027 | timeout (zip_getnetinfo_funnel, (caddr_t) ifID, ZIP_TIMER_INT/10); |
| 1028 | return; |
| 1029 | } |
| 1030 | |
| 1031 | gbuf_rinc(m,AT_WR_OFFSET); |
| 1032 | gbuf_wset(m,0); |
| 1033 | *(u_char *)gbuf_rptr(m) = AT_ADDR; |
| 1034 | at_dest = (struct atalk_addr *)(gbuf_rptr(m) + 1); |
| 1035 | ddp = (at_ddp_t *)(gbuf_rptr(m) + sizeof(struct atalk_addr) + 1); |
| 1036 | zip = (at_x_zip_t *)ddp->data; |
| 1037 | gbuf_winc(m,size); |
| 1038 | |
| 1039 | zip->command = ZIP_GETNETINFO; |
| 1040 | zip->flags = 0; |
| 1041 | NET_ASSIGN(zip->cable_range_start, 0); |
| 1042 | NET_ASSIGN(zip->cable_range_end, 0); |
| 1043 | if (ifID->ifZoneName.len) /* has to match reply exactly */ |
| 1044 | bcopy((caddr_t)&ifID->ifZoneName, (caddr_t)zip->data, |
| 1045 | ifID->ifZoneName.len + 1); |
| 1046 | else |
| 1047 | zip->data[0] = 0; /* No zone name is availbale */ |
| 1048 | |
| 1049 | /* let the lap fields be uninitialized, 'cause it doesn't |
| 1050 | * matter. |
| 1051 | */ |
| 1052 | DDPLEN_ASSIGN(ddp, size - (sizeof(struct atalk_addr) + 1)); |
| 1053 | UAS_ASSIGN(ddp->checksum, 0); |
| 1054 | ddp->hopcount = ddp->unused = 0; |
| 1055 | NET_ASSIGN(ddp->dst_net, 0); /* cable-wide broadcast */ |
| 1056 | NET_ASSIGN(ddp->src_net, ifID->ifThisNode.s_net); |
| 1057 | /* By this time, AARP is done */ |
| 1058 | |
| 1059 | ddp->dst_node = 0xff; |
| 1060 | ddp->src_node = ifID->ifThisNode.s_node; |
| 1061 | ddp->dst_socket = ZIP_SOCKET; |
| 1062 | ddp->src_socket = ZIP_SOCKET; |
| 1063 | ddp->type = DDP_ZIP; |
| 1064 | |
| 1065 | at_dest->atalk_unused = 0; |
| 1066 | NET_NET(at_dest->atalk_net, ddp->dst_net); |
| 1067 | at_dest->atalk_node = ddp->dst_node; |
| 1068 | |
| 1069 | dPrintf(D_M_ZIP, D_L_INPUT, ("zip_getnetinfo: called for port=%d\n", |
| 1070 | ifID->ifPort)); |
| 1071 | |
| 1072 | if (elap_dataput(m, ifID, 0, NULL)) { |
| 1073 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 1074 | ("zip_getnetinfo: error sending zip_getnetinfo\n")); |
| 1075 | return; |
| 1076 | } |
| 1077 | |
| 1078 | ifID->ifNumRetries++; |
| 1079 | netinfo_reply_pending = 1; |
| 1080 | |
| 1081 | timeout (zip_sched_getnetinfo, (caddr_t) ifID, ZIP_TIMER_INT); |
| 1082 | } /* zip_getnetinfo */ |
| 1083 | |
| 1084 | |
| 1085 | /********************************************************************** |
| 1086 | * zip_sched_getnetinfo() |
| 1087 | * |
| 1088 | **********************************************************************/ |
| 1089 | |
| 1090 | void zip_sched_getnetinfo (ifID) |
| 1091 | register at_ifaddr_t *ifID; |
| 1092 | { |
| 1093 | boolean_t funnel_state; |
| 1094 | |
| 1095 | funnel_state = thread_funnel_set(network_flock, TRUE); |
| 1096 | |
| 1097 | if (ifID->ifNumRetries >= ZIP_NETINFO_RETRIES) { |
| 1098 | /* enough packets sent.... give up! */ |
| 1099 | /* we didn't get any response from the net, so |
| 1100 | * assume there's no router around and the given |
| 1101 | * zone name, if any, is not valid. Change the |
| 1102 | * zone name to "*". |
| 1103 | */ |
| 1104 | ifID->ifZoneName.len = 1; |
| 1105 | ifID->ifZoneName.str[0] = '*'; |
| 1106 | ifID->ifZoneName.str[1] = '\0'; |
| 1107 | /* Should NBP be notified of this "new" zone name?? */ |
| 1108 | netinfo_reply_pending = 0; |
| 1109 | |
| 1110 | ifID->ifRouterState = NO_ROUTER; |
| 1111 | ifID->ifARouter.s_net = 0; |
| 1112 | ifID->ifARouter.s_node = 0; |
| 1113 | |
| 1114 | dPrintf(D_M_ZIP, D_L_INFO, ("zip_sched_getnetinfo: Reset Cable Range\n")); |
| 1115 | |
| 1116 | ifID->ifThisCableStart = DDP_MIN_NETWORK; |
| 1117 | ifID->ifThisCableEnd = DDP_MAX_NETWORK; |
| 1118 | |
| 1119 | if (ifID->ifState == LAP_ONLINE_FOR_ZIP) |
| 1120 | ZIPwakeup (ifID, 0); /* no error */ |
| 1121 | } else |
| 1122 | zip_getnetinfo(ifID); |
| 1123 | |
| 1124 | (void) thread_funnel_set(network_flock, FALSE); |
| 1125 | } |
| 1126 | |
| 1127 | |
| 1128 | /********************************************************************** |
| 1129 | * zip_type_packet() |
| 1130 | * |
| 1131 | * Remarks: |
| 1132 | * This routine checks whether or not the packet contained in "m" |
| 1133 | * is an (outgoing) ZIP packet. If not, it returns 0. If it is a |
| 1134 | * ZIP packet, it returns the ZIP packet type (ZIP command). "m" |
| 1135 | * points to a packet with extended DDP header. The rest of the |
| 1136 | * DDP data may or may not be in the first gbuf. |
| 1137 | * |
| 1138 | **********************************************************************/ |
| 1139 | int zip_type_packet (m) |
| 1140 | register gbuf_t *m; |
| 1141 | { |
| 1142 | register at_atp_t *atp; |
| 1143 | register at_ddp_t *ddp; |
| 1144 | register at_zip_t *zip; |
| 1145 | register u_long user_bytes; |
| 1146 | register int user_byte; |
| 1147 | |
| 1148 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 1149 | if (ddp->dst_socket == ZIP_SOCKET) { |
| 1150 | switch (ddp->type) { |
| 1151 | case DDP_ZIP : |
| 1152 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 1153 | zip = (at_zip_t *)(gbuf_rptr(m) |
| 1154 | + DDP_X_HDR_SIZE); |
| 1155 | else |
| 1156 | zip=(at_zip_t *)(gbuf_rptr(gbuf_cont(m))); |
| 1157 | return ((int)zip->command); |
| 1158 | case DDP_ATP : |
| 1159 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 1160 | atp = (at_atp_t *)(gbuf_rptr(m)+DDP_X_HDR_SIZE); |
| 1161 | else |
| 1162 | atp = (at_atp_t *)(gbuf_rptr(gbuf_cont(m))); |
| 1163 | /* Get the user bytes in network order */ |
| 1164 | user_bytes = UAL_VALUE(atp->user_bytes); |
| 1165 | user_byte = user_bytes >> 24; /* Get the zeroth byte */ |
| 1166 | if ((user_byte == ZIP_GETMYZONE) || |
| 1167 | (user_byte == ZIP_GETZONELIST) || |
| 1168 | (user_byte == ZIP_GETLOCALZONES)) |
| 1169 | return (user_byte); |
| 1170 | else |
| 1171 | return (0); |
| 1172 | default : |
| 1173 | return (0); |
| 1174 | } |
| 1175 | } else |
| 1176 | return (0); |
| 1177 | } |
| 1178 | |
| 1179 | /********************************************************************** |
| 1180 | * zip_handle_getmyzone() |
| 1181 | * |
| 1182 | * Remarks: |
| 1183 | * Routine to handle ZIP GetMyZone request locally. It generates |
| 1184 | * a phony response to the outgoing ATP request and sends it up. |
| 1185 | * |
| 1186 | * 07/12/94 : remark2 only called from ddp.c / ddp_output |
| 1187 | * should only be called from the home port, but |
| 1188 | * when we are a router we should know the infos for all |
| 1189 | * anyway, so reply locally with what we have in stock... |
| 1190 | * |
| 1191 | **********************************************************************/ |
| 1192 | |
| 1193 | int zip_handle_getmyzone(ifID, m) |
| 1194 | register at_ifaddr_t *ifID; |
| 1195 | register gbuf_t *m; |
| 1196 | { |
| 1197 | at_atp_t *atp; |
| 1198 | register at_ddp_t *ddp; |
| 1199 | register at_ddp_t *r_ddp; |
| 1200 | register at_atp_t *r_atp; |
| 1201 | gbuf_t *rm; /* reply message */ |
| 1202 | register int size; |
| 1203 | u_long ulongtmp; |
| 1204 | |
| 1205 | dPrintf(D_M_ZIP, D_L_INFO, |
| 1206 | ("zip_handle_getmyzone: local reply for port=%d\n", |
| 1207 | ifID->ifPort)); |
| 1208 | |
| 1209 | size = DDP_X_HDR_SIZE + ATP_HDR_SIZE + 1 + ifID->ifZoneName.len; |
| 1210 | /* space for two headers and the zone name */ |
| 1211 | if ((rm = gbuf_alloc(AT_WR_OFFSET+size, PRI_HI)) == NULL) { |
| 1212 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1213 | ("zip_handle_getmyzone: no buffer, port=%d\n", |
| 1214 | ifID->ifPort)); |
| 1215 | return (ENOBUFS); |
| 1216 | } |
| 1217 | |
| 1218 | gbuf_rinc(rm,AT_WR_OFFSET); |
| 1219 | gbuf_wset(rm,0); |
| 1220 | r_ddp = (at_ddp_t *)(gbuf_rptr(rm)); |
| 1221 | r_atp = (at_atp_t *)r_ddp->data; |
| 1222 | gbuf_winc(rm,size); |
| 1223 | |
| 1224 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 1225 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 1226 | atp = (at_atp_t *)(gbuf_rptr(m) + DDP_X_HDR_SIZE); |
| 1227 | else |
| 1228 | atp = (at_atp_t *)(gbuf_rptr(gbuf_cont(m))); |
| 1229 | |
| 1230 | /* fill up the ddp header for reply */ |
| 1231 | DDPLEN_ASSIGN(r_ddp, size); |
| 1232 | r_ddp->hopcount = r_ddp->unused = 0; |
| 1233 | UAS_ASSIGN(r_ddp->checksum, 0); |
| 1234 | NET_ASSIGN(r_ddp->dst_net, ifID->ifThisNode.s_net); |
| 1235 | NET_NET(r_ddp->src_net, ddp->dst_net); |
| 1236 | r_ddp->dst_node = ifID->ifThisNode.s_node; |
| 1237 | r_ddp->src_node = ddp->dst_node; |
| 1238 | r_ddp->dst_socket = ddp->src_socket; |
| 1239 | r_ddp->src_socket = ZIP_SOCKET; |
| 1240 | r_ddp->type = DDP_ATP; |
| 1241 | |
| 1242 | /* fill up the atp header */ |
| 1243 | r_atp->cmd = ATP_CMD_TRESP; |
| 1244 | r_atp->xo = 0; |
| 1245 | r_atp->eom = 1; |
| 1246 | r_atp->sts = 0; |
| 1247 | r_atp->xo_relt = 0; |
| 1248 | r_atp->bitmap = 0; |
| 1249 | UAS_UAS(r_atp->tid, atp->tid); |
| 1250 | ulongtmp = 1; |
| 1251 | ulongtmp = htonl(ulongtmp); |
| 1252 | UAL_ASSIGN(r_atp->user_bytes, ulongtmp); /* no of zones */ |
| 1253 | |
| 1254 | /* fill up atp data part */ |
| 1255 | bcopy((caddr_t) &ifID->ifZoneName, (caddr_t) r_atp->data, ifID->ifZoneName.len+1); |
| 1256 | |
| 1257 | /* all set to send the packet back up */ |
| 1258 | |
| 1259 | timeout(send_phony_reply, (caddr_t) rm, HZ/20); |
| 1260 | return (0); |
| 1261 | } |
| 1262 | |
| 1263 | static void |
| 1264 | send_phony_reply(rm) |
| 1265 | gbuf_t *rm; |
| 1266 | { |
| 1267 | boolean_t funnel_state; |
| 1268 | |
| 1269 | funnel_state = thread_funnel_set(network_flock, TRUE); |
| 1270 | |
| 1271 | ddp_input(rm, ifID_home); |
| 1272 | |
| 1273 | (void) thread_funnel_set(network_flock, FALSE); |
| 1274 | return; |
| 1275 | } |
| 1276 | |
| 1277 | |
| 1278 | /* |
| 1279 | * zip_prep_query_packet: build the actual ddp packet for the zip query |
| 1280 | */ |
| 1281 | |
| 1282 | gbuf_t *zip_prep_query_packet(ifID, RouterNet, RouterNode) |
| 1283 | at_ifaddr_t *ifID; |
| 1284 | at_net_al RouterNet; /* we want to send the Zip Query to that router */ |
| 1285 | at_node RouterNode; |
| 1286 | { |
| 1287 | |
| 1288 | register gbuf_t *m; |
| 1289 | register at_ddp_t *ddp; |
| 1290 | |
| 1291 | if ((m = gbuf_alloc (AT_WR_OFFSET+1024, PRI_HI)) == NULL) { |
| 1292 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1293 | ("zip_send_query_packet: no buffer, port=%d\n", |
| 1294 | ifID->ifPort)); |
| 1295 | return((gbuf_t *)NULL); |
| 1296 | } |
| 1297 | gbuf_rinc(m,AT_WR_OFFSET); |
| 1298 | gbuf_wset(m,0); |
| 1299 | |
| 1300 | ddp = (at_ddp_t *)(gbuf_rptr(m)); |
| 1301 | |
| 1302 | /* Prepare the DDP header */ |
| 1303 | |
| 1304 | ddp->unused = ddp->hopcount = 0; |
| 1305 | UAS_ASSIGN(ddp->checksum, 0); |
| 1306 | NET_ASSIGN(ddp->src_net, ifID->ifThisNode.s_net); |
| 1307 | ddp->src_node = ifID->ifThisNode.s_node; |
| 1308 | ddp->src_socket = ZIP_SOCKET; |
| 1309 | |
| 1310 | ddp->dst_socket = ZIP_SOCKET; |
| 1311 | NET_ASSIGN(ddp->dst_net, RouterNet); |
| 1312 | ddp->dst_node = RouterNode; |
| 1313 | |
| 1314 | ddp->type = DDP_ZIP; |
| 1315 | |
| 1316 | return (m); |
| 1317 | } /* zip_prep_query_packet */ |
| 1318 | |
| 1319 | |
| 1320 | /* |
| 1321 | * zip_send_queries: this function send queries for the routing table entries that |
| 1322 | * need to know their zones. It scans the routing table for entries with unknown |
| 1323 | * zones and build Query packets accordingly. |
| 1324 | * Note: this is called on a per port basis. |
| 1325 | */ |
| 1326 | |
| 1327 | void zip_send_queries(ifID, RouterNet, RouterNode) |
| 1328 | register at_ifaddr_t *ifID; |
| 1329 | at_net_al RouterNet; /* we want to send the Zip Query to that router */ |
| 1330 | at_node RouterNode; |
| 1331 | { |
| 1332 | RT_entry *Entry = &RT_table[0]; |
| 1333 | register gbuf_t *m; |
| 1334 | register at_ddp_t *ddp; |
| 1335 | int status; |
| 1336 | short Query_index, EntryNumber = 0 ; |
| 1337 | register u_char port = ifID->ifPort; |
| 1338 | char *QueryBuff, *ZoneCount; |
| 1339 | short zip_sent = FALSE; |
| 1340 | |
| 1341 | newPacket: |
| 1342 | |
| 1343 | if (!(m = zip_prep_query_packet(ifID, RouterNet, RouterNode))) { |
| 1344 | return; /* was return (ENOBUFS); */ |
| 1345 | } |
| 1346 | |
| 1347 | ddp = (at_ddp_t *)(gbuf_rptr(m)); |
| 1348 | QueryBuff = (char *)ddp->data; |
| 1349 | |
| 1350 | *QueryBuff++ = ZIP_QUERY; |
| 1351 | ZoneCount = QueryBuff; /* network count */ |
| 1352 | *ZoneCount = 0; |
| 1353 | QueryBuff++; |
| 1354 | Query_index = 2; |
| 1355 | |
| 1356 | |
| 1357 | while (EntryNumber < RT_maxentry) { |
| 1358 | |
| 1359 | /* scan the table, and build the packet with the right entries: |
| 1360 | * - entry in use and on the right Port |
| 1361 | * - with unknwon zones and in an active state |
| 1362 | * - talking to the right router |
| 1363 | */ |
| 1364 | |
| 1365 | if ((Query_index) > 2*254 +2) { |
| 1366 | |
| 1367 | /* we need to send the packet now, but we can't have more than 256 |
| 1368 | * requests for networks: the Netcount field is a 8bit in the zip query |
| 1369 | * packet format as defined in Inside Atalk |
| 1370 | */ |
| 1371 | |
| 1372 | dPrintf(D_M_ZIP_LOW, D_L_OUTPUT, |
| 1373 | ("zip_send_query: FULL query for %d nets on port#%d.(len=%d)\n", |
| 1374 | *ZoneCount, port, Query_index)); |
| 1375 | zip_sent = TRUE; |
| 1376 | |
| 1377 | gbuf_winc(m,DDP_X_HDR_SIZE + Query_index); |
| 1378 | DDPLEN_ASSIGN(ddp, DDP_X_HDR_SIZE + Query_index); |
| 1379 | |
| 1380 | if ((status = |
| 1381 | ddp_router_output(m, ifID, AT_ADDR, |
| 1382 | RouterNet, RouterNode, 0))) { |
| 1383 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 1384 | ("zip_send_query: ddp_router_output returns =%d\n", status)); |
| 1385 | return; /* was return (status); */ |
| 1386 | } |
| 1387 | |
| 1388 | goto newPacket; |
| 1389 | } |
| 1390 | |
| 1391 | |
| 1392 | if (((Entry->EntryState & 0x0F) >= RTE_STATE_SUSPECT) && |
| 1393 | (Entry->NetStop) && (Entry->NetPort == port) && |
| 1394 | (!RT_ALL_ZONES_KNOWN(Entry))){ |
| 1395 | |
| 1396 | /* we're ready to had that to our list of stuff to send */ |
| 1397 | |
| 1398 | if (Entry->NetStart) { /* extended net*/ |
| 1399 | |
| 1400 | *QueryBuff++ = (Entry->NetStart & 0xFF00) >> 8; |
| 1401 | *QueryBuff++ = (Entry->NetStart & 0x00FF); |
| 1402 | |
| 1403 | } |
| 1404 | else { |
| 1405 | *QueryBuff++ = (Entry->NetStop & 0xFF00) >> 8; |
| 1406 | *QueryBuff++ = (Entry->NetStop & 0x00FF); |
| 1407 | } |
| 1408 | |
| 1409 | Query_index += 2; |
| 1410 | *ZoneCount += 1;/* bump the number of network requested */ |
| 1411 | |
| 1412 | } |
| 1413 | |
| 1414 | Entry++; |
| 1415 | EntryNumber++; |
| 1416 | |
| 1417 | } |
| 1418 | |
| 1419 | dPrintf(D_M_ZIP_LOW, D_L_OUTPUT, |
| 1420 | ("zip_send_query: query for %d nets on port#%d.(len=%d)\n", |
| 1421 | *ZoneCount, port, Query_index)); |
| 1422 | |
| 1423 | if (*ZoneCount) { /* non-full Query needs to be sent */ |
| 1424 | zip_sent = TRUE; |
| 1425 | gbuf_winc(m,DDP_X_HDR_SIZE + Query_index); |
| 1426 | DDPLEN_ASSIGN(ddp, DDP_X_HDR_SIZE + Query_index); |
| 1427 | |
| 1428 | if ((status = |
| 1429 | ddp_router_output(m, ifID, AT_ADDR, |
| 1430 | RouterNet, RouterNode, 0))) { |
| 1431 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 1432 | ("zip_send_query: ddp_router_output returns =%d\n", |
| 1433 | status)); |
| 1434 | return; /* was return (status); */ |
| 1435 | } |
| 1436 | } |
| 1437 | else |
| 1438 | gbuf_freem(m); |
| 1439 | |
| 1440 | if (!zip_sent) /* we didn't need to send anything for that port */ |
| 1441 | ifID->ifZipNeedQueries = 0; |
| 1442 | } /* zip_send_queries */ |
| 1443 | |
| 1444 | /* zip_reply_received: we recieved the reply to one of our query, update the |
| 1445 | * zone bitmap and stuffs with was we received. |
| 1446 | * we receive two types of replies: non extended and extended. |
| 1447 | * For extended replies, the network count is the Total of zones for that net. |
| 1448 | */ |
| 1449 | |
| 1450 | zip_reply_received(m, ifID, reply_type) |
| 1451 | register gbuf_t *m; |
| 1452 | register at_ifaddr_t *ifID; |
| 1453 | int reply_type; |
| 1454 | { |
| 1455 | register at_nvestr_t *zname; |
| 1456 | RT_entry *Entry = &RT_table[0]; |
| 1457 | register at_ddp_t *ddp; |
| 1458 | at_net_al Network; |
| 1459 | u_short payload_len, result; |
| 1460 | u_char network_count; |
| 1461 | char *PacketPtr; |
| 1462 | |
| 1463 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 1464 | |
| 1465 | /* access the number of nets provided in the ZIP Reply */ |
| 1466 | |
| 1467 | network_count = *(u_char *)(gbuf_rptr(m) + DDP_X_HDR_SIZE + 1); |
| 1468 | |
| 1469 | PacketPtr = (char *)(gbuf_rptr(m) + DDP_X_HDR_SIZE + 2); |
| 1470 | |
| 1471 | payload_len = DDPLEN_VALUE(ddp) - (DDP_X_HDR_SIZE + 2); |
| 1472 | |
| 1473 | dPrintf(D_M_ZIP_LOW, D_L_INPUT, ("zip_reply_received from %d:%d type=%d netcount=%d\n", |
| 1474 | NET_VALUE(ddp->src_net), ddp->src_node, reply_type, network_count)); |
| 1475 | |
| 1476 | |
| 1477 | while (payload_len > 0 && network_count >0) { |
| 1478 | |
| 1479 | Network = *(at_net_al *)PacketPtr; |
| 1480 | PacketPtr += 2; |
| 1481 | zname = (at_nvestr_t *)PacketPtr; |
| 1482 | if (payload_len) |
| 1483 | payload_len = payload_len -(zname->len + 3); |
| 1484 | |
| 1485 | if (zname->len <= 0) { /* not valid, we got a problem here... */ |
| 1486 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1487 | ("zip_reply_received: Problem zlen=0 for net=%d from %d:%d type=%d netcnt=%d\n", |
| 1488 | Network, NET_VALUE(ddp->src_net), ddp->src_node, reply_type, network_count)); |
| 1489 | payload_len =0; |
| 1490 | continue; |
| 1491 | } |
| 1492 | |
| 1493 | |
| 1494 | Entry = rt_blookup(Network); |
| 1495 | |
| 1496 | if (Entry != NULL) { |
| 1497 | |
| 1498 | if (Entry->EntryState >= RTE_STATE_SUSPECT) { |
| 1499 | |
| 1500 | result = zt_add_zonename(zname); |
| 1501 | |
| 1502 | if (result == ZT_MAXEDOUT) { |
| 1503 | |
| 1504 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 1505 | ("zip_reply_received: ZTable full from %d:%d on zone '%s'\n", |
| 1506 | NET_VALUE(ddp->src_net), ddp->src_node, zname->str)); |
| 1507 | ErrorZIPoverflow = 1; |
| 1508 | return(1); |
| 1509 | } |
| 1510 | |
| 1511 | zt_set_zmap(result, Entry->ZoneBitMap); |
| 1512 | |
| 1513 | RT_SET_ZONE_KNOWN(Entry); |
| 1514 | |
| 1515 | } |
| 1516 | else { |
| 1517 | dPrintf(D_M_ZIP, D_L_INPUT, |
| 1518 | ("zip_reply_received: entry %d-%d not updated, cause state=%d\n", |
| 1519 | Entry->NetStart, Entry->NetStop, Entry->EntryState)); |
| 1520 | } |
| 1521 | } |
| 1522 | else { |
| 1523 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1524 | ("zip_reply_received: network %d not found in RT\n", Network)); |
| 1525 | } |
| 1526 | |
| 1527 | |
| 1528 | /* now bump the PacketPtr pointer */ |
| 1529 | PacketPtr += zname->len + 1; |
| 1530 | network_count--; |
| 1531 | } |
| 1532 | |
| 1533 | if ((reply_type == ZIP_REPLY) && network_count > 0) { |
| 1534 | if (Entry) |
| 1535 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1536 | ("zip_reply_received: Problem decoding zone (after net:%d-%d)\n", |
| 1537 | Entry->NetStart, Entry->NetStop)); |
| 1538 | ifID->ifZipNeedQueries = 1; |
| 1539 | } |
| 1540 | else { |
| 1541 | ifID->ifZipNeedQueries = 0; |
| 1542 | if (Entry) |
| 1543 | dPrintf(D_M_ZIP_LOW, D_L_INFO, |
| 1544 | ("zip_reply_received: entry %d-%d all zones known\n", |
| 1545 | Entry->NetStart, Entry->NetStop)); |
| 1546 | } |
| 1547 | } |
| 1548 | |
| 1549 | /* |
| 1550 | * zip_reply_to_getmyzone: replies to ZIP GetMyZone received from the Net |
| 1551 | */ |
| 1552 | |
| 1553 | static void zip_reply_to_getmyzone (ifID, m) |
| 1554 | register at_ifaddr_t *ifID; |
| 1555 | register gbuf_t *m; |
| 1556 | { |
| 1557 | at_atp_t *atp; |
| 1558 | register at_ddp_t *ddp; |
| 1559 | register at_ddp_t *r_ddp; |
| 1560 | register at_atp_t *r_atp; |
| 1561 | register gbuf_t *rm; /* reply message */ |
| 1562 | register int size, Index, status; |
| 1563 | char *data_ptr; |
| 1564 | RT_entry *Entry; |
| 1565 | u_long ulongtmp; |
| 1566 | |
| 1567 | size = DDP_X_HDR_SIZE + ATP_HDR_SIZE + 1 + ifID->ifZoneName.len; |
| 1568 | /* space for two headers and the zone name */ |
| 1569 | if ((rm = gbuf_alloc(AT_WR_OFFSET+size, PRI_HI)) == NULL) { |
| 1570 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1571 | ("zip_reply_to_getmyzone: no buffer, port=%d\n", ifID->ifPort)); |
| 1572 | return; /* was return (ENOBUFS); */ |
| 1573 | } |
| 1574 | gbuf_rinc(rm,AT_WR_OFFSET); |
| 1575 | gbuf_wset(rm,size); |
| 1576 | r_ddp = (at_ddp_t *)(gbuf_rptr(rm)); |
| 1577 | r_atp = (at_atp_t *)r_ddp->data; |
| 1578 | |
| 1579 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 1580 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 1581 | atp = (at_atp_t *)(gbuf_rptr(m) + DDP_X_HDR_SIZE); |
| 1582 | else |
| 1583 | atp = (at_atp_t *)(gbuf_rptr(gbuf_cont(m))); |
| 1584 | |
| 1585 | /* fill up the ddp header for reply */ |
| 1586 | DDPLEN_ASSIGN(r_ddp, size); |
| 1587 | r_ddp->hopcount = r_ddp->unused = 0; |
| 1588 | UAS_ASSIGN(r_ddp->checksum, 0); |
| 1589 | |
| 1590 | NET_ASSIGN(r_ddp->src_net, ifID->ifThisNode.s_net); |
| 1591 | NET_NET(r_ddp->dst_net, ddp->src_net); |
| 1592 | |
| 1593 | r_ddp->src_node = ifID->ifThisNode.s_node; |
| 1594 | r_ddp->dst_node = ddp->src_node; |
| 1595 | |
| 1596 | r_ddp->dst_socket = ddp->src_socket; |
| 1597 | r_ddp->src_socket = ZIP_SOCKET; |
| 1598 | r_ddp->type = DDP_ATP; |
| 1599 | |
| 1600 | /* fill up the atp header */ |
| 1601 | r_atp->cmd = ATP_CMD_TRESP; |
| 1602 | r_atp->xo = 0; |
| 1603 | r_atp->eom = 1; |
| 1604 | r_atp->sts = 0; |
| 1605 | r_atp->xo_relt = 0; |
| 1606 | r_atp->bitmap = 0; |
| 1607 | UAS_UAS(r_atp->tid, atp->tid); |
| 1608 | ulongtmp = 1; |
| 1609 | ulongtmp = htonl(ulongtmp); |
| 1610 | UAL_ASSIGN(r_atp->user_bytes, ulongtmp); /* no of zones */ |
| 1611 | |
| 1612 | data_ptr = (char *)r_atp->data; |
| 1613 | |
| 1614 | /* |
| 1615 | * fill up atp data part with the zone name if we can find it... |
| 1616 | */ |
| 1617 | |
| 1618 | Entry = rt_blookup(NET_VALUE(ddp->src_net)); |
| 1619 | if (Entry != NULL && ((Entry->EntryState & 0x0F) >= RTE_STATE_SUSPECT) && |
| 1620 | RT_ALL_ZONES_KNOWN(Entry)) { /* this net is well known... */ |
| 1621 | |
| 1622 | Index = zt_ent_zindex(Entry->ZoneBitMap) -1; |
| 1623 | |
| 1624 | *data_ptr = ZT_table[Index].Zone.len; |
| 1625 | bcopy((caddr_t) &ZT_table[Index].Zone.str, (caddr_t) ++data_ptr, |
| 1626 | ZT_table[Index].Zone.len); |
| 1627 | |
| 1628 | /* all set to send the packet back up */ |
| 1629 | dPrintf(D_M_ZIP_LOW, D_L_OUTPUT, |
| 1630 | ("zip_reply_to_GMZ: ddp_router_output to %d:%d port %d\n", |
| 1631 | NET_VALUE(r_ddp->dst_net), r_ddp->dst_node, ifID->ifPort)); |
| 1632 | |
| 1633 | if ((status = |
| 1634 | ddp_router_output(rm, ifID, AT_ADDR, |
| 1635 | NET_VALUE(r_ddp->dst_net), r_ddp->dst_node, 0))) { |
| 1636 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 1637 | ("zip_reply_to_GMZ: ddp_r_output returns =%d\n", status)); |
| 1638 | return; /* was return (status); */ |
| 1639 | } |
| 1640 | } |
| 1641 | else |
| 1642 | gbuf_freem(rm); |
| 1643 | } |
| 1644 | |
| 1645 | /* |
| 1646 | * zip_reply_to_getzonelist: replies to ZIP GetZoneList requested from the Net |
| 1647 | */ |
| 1648 | |
| 1649 | zip_reply_to_getzonelist (ifID, m) |
| 1650 | register at_ifaddr_t *ifID; |
| 1651 | register gbuf_t *m; |
| 1652 | { |
| 1653 | at_atp_t *atp; |
| 1654 | register at_ddp_t *ddp; |
| 1655 | register at_ddp_t *r_ddp; |
| 1656 | register at_atp_t *r_atp; |
| 1657 | register gbuf_t *rm; /* reply message */ |
| 1658 | register int size, status; |
| 1659 | register short Index=0, StartPoint, ZLength, PacketLen=0; |
| 1660 | u_long ulongtmp= 0; |
| 1661 | char *Reply; |
| 1662 | |
| 1663 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 1664 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 1665 | atp = (at_atp_t *)(gbuf_rptr(m) + DDP_X_HDR_SIZE); |
| 1666 | else |
| 1667 | atp = (at_atp_t *)(gbuf_rptr(gbuf_cont(m))); |
| 1668 | |
| 1669 | |
| 1670 | /* space for two headers and the zone name */ |
| 1671 | |
| 1672 | if ((rm = gbuf_alloc(AT_WR_OFFSET+1024, PRI_HI)) == NULL) { |
| 1673 | return (ENOBUFS); |
| 1674 | } |
| 1675 | |
| 1676 | gbuf_rinc(rm,AT_WR_OFFSET); |
| 1677 | gbuf_wset(rm,0); |
| 1678 | r_ddp = (at_ddp_t *)(gbuf_rptr(rm)); |
| 1679 | r_atp = (at_atp_t *)r_ddp->data; |
| 1680 | |
| 1681 | /* fill up the ddp header for reply */ |
| 1682 | |
| 1683 | r_ddp->hopcount = r_ddp->unused = 0; |
| 1684 | UAS_ASSIGN(r_ddp->checksum, 0); |
| 1685 | NET_ASSIGN(r_ddp->src_net, ifID->ifThisNode.s_net); |
| 1686 | NET_NET(r_ddp->dst_net, ddp->src_net); |
| 1687 | r_ddp->src_node = ifID->ifThisNode.s_node; |
| 1688 | r_ddp->dst_node = ddp->src_node; |
| 1689 | r_ddp->dst_socket = ddp->src_socket; |
| 1690 | r_ddp->src_socket = ZIP_SOCKET; |
| 1691 | r_ddp->type = DDP_ATP; |
| 1692 | |
| 1693 | /* fill up the atp header */ |
| 1694 | |
| 1695 | r_atp->cmd = ATP_CMD_TRESP; |
| 1696 | r_atp->xo = 0; |
| 1697 | r_atp->eom = 1; |
| 1698 | r_atp->sts = 0; |
| 1699 | r_atp->xo_relt = 0; |
| 1700 | r_atp->bitmap = 0; |
| 1701 | UAS_UAS(r_atp->tid, atp->tid); |
| 1702 | |
| 1703 | Reply = (char *)r_atp->data; |
| 1704 | |
| 1705 | /* get the start index from the ATP request */ |
| 1706 | |
| 1707 | StartPoint = (UAL_VALUE(atp->user_bytes) & 0xffff) -1; |
| 1708 | |
| 1709 | /* find the next zone to send */ |
| 1710 | |
| 1711 | while ((Index < ZT_maxentry) && StartPoint > 0) { |
| 1712 | if (ZT_table[Index].Zone.len) |
| 1713 | StartPoint--; |
| 1714 | Index++; |
| 1715 | } |
| 1716 | |
| 1717 | |
| 1718 | dPrintf(D_M_ZIP_LOW, D_L_OUTPUT, ("zip_reply_to_GZL: Index=%d\n", Index)); |
| 1719 | /* |
| 1720 | * fill up atp data part with the zone name if we can find it... |
| 1721 | */ |
| 1722 | |
| 1723 | while (Index < ZT_maxentry) { |
| 1724 | |
| 1725 | ZLength = ZT_table[Index].Zone.len; |
| 1726 | |
| 1727 | if (ZT_table[Index].ZoneCount && ZLength) { |
| 1728 | |
| 1729 | |
| 1730 | if (PacketLen + 8 + ZLength+1 > DDP_DATA_SIZE) /* packet full */ |
| 1731 | break; |
| 1732 | |
| 1733 | *Reply++ = ZLength; |
| 1734 | bcopy((caddr_t) &ZT_table[Index].Zone.str, |
| 1735 | Reply, ZLength); |
| 1736 | Reply += ZLength; |
| 1737 | PacketLen += ZLength + 1; |
| 1738 | ulongtmp++; |
| 1739 | } |
| 1740 | Index++; |
| 1741 | } |
| 1742 | |
| 1743 | if (Index >= ZT_maxentry) /* this is the end of the list */ |
| 1744 | |
| 1745 | ulongtmp += 0x01000000; |
| 1746 | |
| 1747 | |
| 1748 | UAL_ASSIGN(r_atp->user_bytes, ulongtmp); /* # of zones and flag*/ |
| 1749 | |
| 1750 | size = DDP_X_HDR_SIZE + ATP_HDR_SIZE + PacketLen; |
| 1751 | gbuf_winc(rm,size); |
| 1752 | DDPLEN_ASSIGN(r_ddp, size); |
| 1753 | |
| 1754 | /* all set to send the packet back up */ |
| 1755 | |
| 1756 | dPrintf(D_M_ZIP_LOW, D_L_OUTPUT, |
| 1757 | ("zip_r_GZL: send packet to %d:%d port %d atp_len =%d\n", |
| 1758 | NET_VALUE(r_ddp->dst_net), r_ddp->dst_node, ifID->ifPort, PacketLen)); |
| 1759 | |
| 1760 | |
| 1761 | if (status= ddp_router_output(rm, ifID, AT_ADDR, |
| 1762 | NET_VALUE(r_ddp->dst_net), r_ddp->dst_node, 0)) { |
| 1763 | dPrintf(D_M_ZIP, D_L_ERROR, ("zip_reply_to_GZL: ddp_router_output returns=%d\n", |
| 1764 | status)); |
| 1765 | return (status); |
| 1766 | } |
| 1767 | return (0); |
| 1768 | |
| 1769 | } |
| 1770 | |
| 1771 | /* |
| 1772 | * zip_reply_to_getlocalzones: replies to ZIP GetLocalZones requested from the Net |
| 1773 | */ |
| 1774 | |
| 1775 | int zip_reply_to_getlocalzones (ifID, m) |
| 1776 | register at_ifaddr_t *ifID; |
| 1777 | register gbuf_t *m; |
| 1778 | { |
| 1779 | at_atp_t *atp; |
| 1780 | register at_ddp_t *ddp; |
| 1781 | register at_ddp_t *r_ddp; |
| 1782 | register at_atp_t *r_atp; |
| 1783 | register gbuf_t *rm; /* reply message */ |
| 1784 | int size, status; |
| 1785 | short Index, Index_wanted, ZLength; |
| 1786 | short i,j, packet_len; |
| 1787 | short zCount, ZoneCount, ZonesInPacket; |
| 1788 | char *zmap, last_flag = 0; |
| 1789 | RT_entry *Entry; |
| 1790 | char *Reply; |
| 1791 | |
| 1792 | u_long ulongtmp = 0; |
| 1793 | |
| 1794 | Index = Index_wanted = ZLength = i = j = packet_len = zCount = ZoneCount = |
| 1795 | ZonesInPacket = 0; |
| 1796 | |
| 1797 | ddp = (at_ddp_t *)gbuf_rptr(m); |
| 1798 | if (gbuf_len(m) > DDP_X_HDR_SIZE) |
| 1799 | atp = (at_atp_t *)(gbuf_rptr(m) + DDP_X_HDR_SIZE); |
| 1800 | else |
| 1801 | atp = (at_atp_t *)(gbuf_rptr(gbuf_cont(m))); |
| 1802 | |
| 1803 | /* space for two headers and the zone name */ |
| 1804 | |
| 1805 | if ((rm = gbuf_alloc(AT_WR_OFFSET+1024, PRI_HI)) == NULL) { |
| 1806 | return (ENOBUFS); |
| 1807 | } |
| 1808 | |
| 1809 | gbuf_rinc(rm,AT_WR_OFFSET); |
| 1810 | gbuf_wset(rm,0); |
| 1811 | r_ddp = (at_ddp_t *)(gbuf_rptr(rm)); |
| 1812 | r_atp = (at_atp_t *)r_ddp->data; |
| 1813 | |
| 1814 | Reply = (char *)r_atp->data; |
| 1815 | |
| 1816 | |
| 1817 | /* get the start index from the ATP request */ |
| 1818 | |
| 1819 | Index_wanted = (UAL_VALUE(atp->user_bytes) & 0xffff) -1; |
| 1820 | |
| 1821 | dPrintf(D_M_ZIP_LOW, D_L_INFO, |
| 1822 | ("zip_r_GLZ: for station %d:%d Index_wanted = %d\n", |
| 1823 | NET_VALUE(ddp->src_net), ddp->src_node, Index_wanted)); |
| 1824 | |
| 1825 | Entry = rt_blookup(NET_VALUE(ddp->src_net)); |
| 1826 | |
| 1827 | if (Entry != NULL && ((Entry->EntryState & 0x0F) >= RTE_STATE_SUSPECT) && |
| 1828 | RT_ALL_ZONES_KNOWN(Entry)) { /* this net is well known... */ |
| 1829 | |
| 1830 | ZoneCount = zt_ent_zcount(Entry) ; |
| 1831 | |
| 1832 | dPrintf(D_M_ZIP_LOW, D_L_INFO, |
| 1833 | ("zip_reply_GLZ: for %d:%d ZoneCount=%d\n", |
| 1834 | NET_VALUE(ddp->src_net), ddp->src_node, ZoneCount)); |
| 1835 | |
| 1836 | zmap = &Entry->ZoneBitMap[0]; |
| 1837 | |
| 1838 | /* |
| 1839 | * first of all, we want to find the "first next zone" in the bitmap, |
| 1840 | * to do so, we need to scan the bitmap and add the number of valid |
| 1841 | * zones we find until we reach the next zone to be sent in the reply |
| 1842 | */ |
| 1843 | |
| 1844 | if (ZoneCount > Index_wanted) { |
| 1845 | |
| 1846 | ZoneCount -= Index_wanted; |
| 1847 | |
| 1848 | /* find the starting point in the bitmap according to index */ |
| 1849 | |
| 1850 | for (i = 0; Index_wanted >= 0 && i < ZT_BYTES; i++) |
| 1851 | if (zmap[i]) { |
| 1852 | if (Index_wanted < 8) { |
| 1853 | /* how many zones in the bitmap byte */ |
| 1854 | for (j = 0, zCount =0; j < 8 ; j++) |
| 1855 | if ((zmap[i] << j) & 0x80) |
| 1856 | zCount++; |
| 1857 | if (Index_wanted < zCount) { |
| 1858 | for (j = 0 ; Index_wanted > 0 && j < 8 ; j++) |
| 1859 | if ((zmap[i] << j) & 0x80) |
| 1860 | Index_wanted--; |
| 1861 | break; |
| 1862 | } |
| 1863 | else |
| 1864 | Index_wanted -= zCount; |
| 1865 | } |
| 1866 | else |
| 1867 | for (j = 0 ; j < 8 ; j++) |
| 1868 | if ((zmap[i] << j) & 0x80) |
| 1869 | Index_wanted--; |
| 1870 | } |
| 1871 | |
| 1872 | /* |
| 1873 | * now, we point to the begining of our next zones in the bitmap |
| 1874 | */ |
| 1875 | |
| 1876 | while (i < ZT_BYTES) { |
| 1877 | |
| 1878 | if (zmap[i]) { |
| 1879 | for (; j < 8 ; j++) |
| 1880 | if ((zmap[i] << j) & 0x80) { |
| 1881 | Index = i*8 + j; /* get the index in ZT */ |
| 1882 | |
| 1883 | ZLength = ZT_table[Index].Zone.len; |
| 1884 | |
| 1885 | if (ZT_table[Index].ZoneCount && ZLength) { |
| 1886 | if (packet_len + ATP_HDR_SIZE + ZLength + 1 > |
| 1887 | DDP_DATA_SIZE) |
| 1888 | goto FullPacket; |
| 1889 | |
| 1890 | *Reply++ = ZLength; |
| 1891 | bcopy((caddr_t) &ZT_table[Index].Zone.str, |
| 1892 | Reply, ZLength); |
| 1893 | Reply += ZLength; |
| 1894 | packet_len += ZLength + 1; |
| 1895 | ZonesInPacket ++; |
| 1896 | dPrintf(D_M_ZIP_LOW, D_L_INFO, |
| 1897 | ("zip_reply_GLZ: add z#%d to packet (l=%d)\n", |
| 1898 | Index, packet_len)); |
| 1899 | } |
| 1900 | else { |
| 1901 | dPrintf(D_M_ZIP, D_L_WARNING, |
| 1902 | ("zip_reply_GLZ: no len for index=%d\n", |
| 1903 | Index)); |
| 1904 | } |
| 1905 | } |
| 1906 | } |
| 1907 | i++; |
| 1908 | j = 0; |
| 1909 | } |
| 1910 | } |
| 1911 | else /* set the "last flag" bit in the reply */ |
| 1912 | last_flag = 1; |
| 1913 | } |
| 1914 | else /* set the "last flag" bit in the reply */ |
| 1915 | last_flag = 1; |
| 1916 | |
| 1917 | FullPacket: |
| 1918 | |
| 1919 | if (ZonesInPacket == ZoneCount) |
| 1920 | last_flag = 1; |
| 1921 | |
| 1922 | |
| 1923 | /* fill up the ddp header for reply */ |
| 1924 | |
| 1925 | r_ddp->hopcount = r_ddp->unused = 0; |
| 1926 | UAS_ASSIGN(r_ddp->checksum, 0); |
| 1927 | |
| 1928 | NET_ASSIGN(r_ddp->src_net, ifID->ifThisNode.s_net); |
| 1929 | NET_NET(r_ddp->dst_net, ddp->src_net); |
| 1930 | |
| 1931 | r_ddp->src_node = ifID->ifThisNode.s_node; |
| 1932 | r_ddp->dst_node = ddp->src_node; |
| 1933 | |
| 1934 | r_ddp->dst_socket = ddp->src_socket; |
| 1935 | r_ddp->src_socket = ZIP_SOCKET; |
| 1936 | r_ddp->type = DDP_ATP; |
| 1937 | |
| 1938 | /* fill up the atp header */ |
| 1939 | r_atp->cmd = ATP_CMD_TRESP; |
| 1940 | r_atp->xo = 0; |
| 1941 | r_atp->eom = 1; |
| 1942 | r_atp->sts = 0; |
| 1943 | r_atp->xo_relt = 0; |
| 1944 | r_atp->bitmap = 0; |
| 1945 | UAS_UAS(r_atp->tid, atp->tid); |
| 1946 | ulongtmp = ((last_flag << 24) & 0xFF000000) + ZonesInPacket; /* # of zones and flag*/ |
| 1947 | UAL_ASSIGN(r_atp->user_bytes, ulongtmp); |
| 1948 | size = DDP_X_HDR_SIZE + ATP_HDR_SIZE + packet_len; |
| 1949 | gbuf_winc(rm,size); |
| 1950 | DDPLEN_ASSIGN(r_ddp, size); |
| 1951 | |
| 1952 | /* all set to send the packet back up */ |
| 1953 | |
| 1954 | dPrintf(D_M_ZIP_LOW, D_L_OUTPUT, |
| 1955 | ("zip_r_GLZ: send packet to %d:%d port %d atp_len =%d\n", |
| 1956 | NET_VALUE(r_ddp->dst_net), r_ddp->dst_node, ifID->ifPort, packet_len)); |
| 1957 | |
| 1958 | if (status= ddp_router_output(rm, ifID, AT_ADDR, |
| 1959 | NET_VALUE(r_ddp->dst_net), r_ddp->dst_node, 0)) { |
| 1960 | dPrintf(D_M_ZIP, D_L_ERROR, |
| 1961 | ("zip_reply_to_GLZ: ddp_router_output returns =%d\n", |
| 1962 | status)); |
| 1963 | return (status); |
| 1964 | } |
| 1965 | return (0); |
| 1966 | } /* zip_reply_to_getlocalzones */ |
| 1967 | |
| 1968 | int regDefaultZone(ifID) |
| 1969 | at_ifaddr_t *ifID; |
| 1970 | { |
| 1971 | int i; |
| 1972 | char data[ETHERNET_ADDR_LEN]; |
| 1973 | |
| 1974 | if (!ifID) |
| 1975 | return(-1); |
| 1976 | |
| 1977 | zt_get_zmcast(ifID, &ifID->ifZoneName, data); |
| 1978 | if (FDDI_OR_TOKENRING(ifID->aa_ifp->if_type)) |
| 1979 | ddp_bit_reverse(data); |
| 1980 | bcopy((caddr_t)data, (caddr_t)&ifID->ZoneMcastAddr, ETHERNET_ADDR_LEN); |
| 1981 | (void)at_reg_mcast(ifID, (caddr_t)&ifID->ZoneMcastAddr); |
| 1982 | return(0); |
| 1983 | } |