network.subr revision 60613
1#!/bin/sh - 2# 3# $FreeBSD: head/etc/network.subr 60613 2000-05-15 19:56:59Z kris $ 4# From: @(#)netstart 5.9 (Berkeley) 3/30/91 5 6# Note that almost all of the user-configurable behavior is no longer in 7# this file, but rather in /etc/defaults/rc.conf. Please check that file 8# first before contemplating any changes here. If you do need to change 9# this file for some reason, we would like to know about it. 10 11# First pass startup stuff. 12# 13network_pass1() { 14 echo -n 'Doing initial network setup:' 15 16 # Set the host name if it is not already set 17 # 18 if [ -z "`hostname -s`" ]; then 19 hostname ${hostname} 20 echo -n ' hostname' 21 fi 22 23 # Set the domainname if we're using NIS 24 # 25 case ${nisdomainname} in 26 [Nn][Oo] | '') 27 ;; 28 *) 29 domainname ${nisdomainname} 30 echo -n ' domain' 31 ;; 32 esac 33 34 echo '.' 35 36 # Initial ATM interface configuration 37 # 38 case ${atm_enable} in 39 [Yy][Ee][Ss]) 40 if [ -r /etc/rc.atm ]; then 41 . /etc/rc.atm 42 atm_pass1 43 fi 44 ;; 45 esac 46 47 # Special options for sppp(4) interfaces go here. These need 48 # to go _before_ the general ifconfig section, since in the case 49 # of hardwired (no link1 flag) but required authentication, you 50 # cannot pass auth parameters down to the already running interface. 51 # 52 for ifn in ${sppp_interfaces}; do 53 eval spppcontrol_args=\$spppconfig_${ifn} 54 if [ -n "${spppcontrol_args}" ]; then 55 # The auth secrets might contain spaces; in order 56 # to retain the quotation, we need to eval them 57 # here. 58 eval spppcontrol ${ifn} ${spppcontrol_args} 59 fi 60 done 61 62 # Set up all the network interfaces, calling startup scripts if needed 63 # 64 case ${network_interfaces} in 65 [Aa][Uu][Tt][Oo]) 66 network_interfaces="`ifconfig -l`" 67 ;; 68 esac 69 70 dhcp_interfaces="" 71 for ifn in ${network_interfaces}; do 72 if [ -r /etc/start_if.${ifn} ]; then 73 . /etc/start_if.${ifn} 74 eval showstat_$ifn=1 75 fi 76 77 # Do the primary ifconfig if specified 78 # 79 eval ifconfig_args=\$ifconfig_${ifn} 80 81 case ${ifconfig_args} in 82 '') 83 ;; 84 [Dd][Hh][Cc][Pp]) 85 # DHCP inits are done all in one go below 86 dhcp_interfaces="$dhcp_interfaces $ifn" 87 eval showstat_$ifn=1 88 ;; 89 *) 90 ifconfig ${ifn} ${ifconfig_args} 91 eval showstat_$ifn=1 92 ;; 93 esac 94 done 95 96 if [ ! -z "${dhcp_interfaces}" ]; then 97 ${dhcp_program:-/sbin/dhclient} ${dhcp_flags} ${dhcp_interfaces} 98 fi 99 100 for ifn in ${network_interfaces}; do 101 # Check to see if aliases need to be added 102 # 103 alias=0 104 while : ; do 105 eval ifconfig_args=\$ifconfig_${ifn}_alias${alias} 106 if [ -n "${ifconfig_args}" ]; then 107 ifconfig ${ifn} ${ifconfig_args} alias 108 eval showstat_$ifn=1 109 alias=`expr ${alias} + 1` 110 else 111 break; 112 fi 113 done 114 115 # Do ipx address if specified 116 # 117 eval ifconfig_args=\$ifconfig_${ifn}_ipx 118 if [ -n "${ifconfig_args}" ]; then 119 ifconfig ${ifn} ${ifconfig_args} 120 eval showstat_$ifn=1 121 fi 122 done 123 124 for ifn in ${network_interfaces}; do 125 eval showstat=\$showstat_${ifn} 126 if [ ! -z ${showstat} ]; then 127 ifconfig ${ifn} 128 fi 129 done 130 131 # ISDN subsystem startup 132 # 133 case ${isdn_enable} in 134 [Yy][Ee][Ss]) 135 if [ -r /etc/rc.isdn ]; then 136 . /etc/rc.isdn 137 fi 138 ;; 139 esac 140 141 # Warm up user ppp if required, must happen before natd. 142 # 143 case ${ppp_enable} in 144 [Yy][Ee][Ss]) 145 # Establish ppp mode. 146 # 147 if [ "${ppp_mode}" != "ddial" -a "${ppp_mode}" != "direct" \ 148 -a "${ppp_mode}" != "dedicated" \ 149 -a "${ppp_mode}" != "background" ]; then 150 ppp_mode="auto"; 151 fi 152 153 ppp_command="-${ppp_mode} "; 154 155 # Switch on alias mode? 156 # 157 case ${ppp_nat} in 158 [Yy][Ee][Ss]) 159 ppp_command="${ppp_command} -nat"; 160 ;; 161 esac 162 163 echo -n 'Starting ppp: '; ppp ${ppp_command} -quiet ${ppp_profile} 164 ;; 165 esac 166 167 # Initialize IP filtering using ipfw 168 # 169 echo '' 170 171 if /sbin/ipfw -q flush > /dev/null 2>&1; then 172 firewall_in_kernel=1 173 else 174 firewall_in_kernel=0 175 fi 176 177 case ${firewall_enable} in 178 [Yy][Ee][Ss]) 179 if [ "${firewall_in_kernel}" -eq 0 ] && kldload ipfw; then 180 firewall_in_kernel=1 181 echo "Kernel firewall module loaded." 182 elif [ "${firewall_in_kernel}" -eq 0 ]; then 183 echo "Warning: firewall kernel module failed to load." 184 fi 185 ;; 186 esac 187 188 # Load the filters if required 189 # 190 case ${firewall_in_kernel} in 191 1) 192 if [ -z "${firewall_script}" ]; then 193 firewall_script=/etc/rc.firewall 194 fi 195 196 case ${firewall_enable} in 197 [Yy][Ee][Ss]) 198 if [ -r "${firewall_script}" ]; then 199 . "${firewall_script}" 200 echo -n 'Firewall rules loaded, starting divert daemons:' 201 202 # Network Address Translation daemon 203 # 204 case ${natd_enable} in 205 [Yy][Ee][Ss]) 206 if [ -n "${natd_interface}" ]; then 207 if echo ${natd_interface} | \ 208 grep -q -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$'; then 209 natd_ifarg="-a ${natd_interface}" 210 else 211 natd_ifarg="-n ${natd_interface}" 212 fi 213 214 echo -n ' natd'; ${natd_program:-/sbin/natd} ${natd_flags} ${natd_ifarg} 215 fi 216 ;; 217 esac 218 219 echo '.' 220 221 elif [ "`ipfw l 65535`" = "65535 deny ip from any to any" ]; then 222 echo -n "Warning: kernel has firewall functionality, " 223 echo "but firewall rules are not enabled." 224 echo " All ip services are disabled." 225 fi 226 227 case ${firewall_logging} in 228 [Yy][Ee][Ss] | '') 229 echo 'Firewall logging=YES' 230 sysctl -w net.inet.ip.fw.verbose=1 >/dev/null 231 ;; 232 *) 233 ;; 234 esac 235 236 ;; 237 esac 238 ;; 239 esac 240 241 # Additional ATM interface configuration 242 # 243 if [ -n "${atm_pass1_done}" ]; then 244 atm_pass2 245 fi 246 247 # Configure routing 248 # 249 case ${defaultrouter} in 250 [Nn][Oo] | '') 251 ;; 252 *) 253 static_routes="default ${static_routes}" 254 route_default="default ${defaultrouter}" 255 ;; 256 esac 257 258 # Set up any static routes. This should be done before router discovery. 259 # 260 if [ -n "${static_routes}" ]; then 261 for i in ${static_routes}; do 262 eval route_args=\$route_${i} 263 route add ${route_args} 264 done 265 fi 266 267 echo -n 'Additional routing options:' 268 case ${tcp_extensions} in 269 [Yy][Ee][Ss] | '') 270 ;; 271 *) 272 echo -n ' tcp extensions=NO' 273 sysctl -w net.inet.tcp.rfc1323=0 >/dev/null 274 ;; 275 esac 276 277 case ${icmp_bmcastecho} in 278 [Yy][Ee][Ss]) 279 echo -n ' broadcast ping responses=YES' 280 sysctl -w net.inet.icmp.bmcastecho=1 >/dev/null 281 ;; 282 esac 283 284 case ${icmp_drop_redirect} in 285 [Yy][Ee][Ss]) 286 echo -n ' ignore ICMP redirect=YES' 287 sysctl -w net.inet.icmp.drop_redirect=1 >/dev/null 288 ;; 289 esac 290 291 case ${icmp_log_redirect} in 292 [Yy][Ee][Ss]) 293 echo -n ' log ICMP redirect=YES' 294 sysctl -w net.inet.icmp.log_redirect=1 >/dev/null 295 ;; 296 esac 297 298 case ${gateway_enable} in 299 [Yy][Ee][Ss]) 300 echo -n ' IP gateway=YES' 301 sysctl -w net.inet.ip.forwarding=1 >/dev/null 302 ;; 303 esac 304 305 case ${forward_sourceroute} in 306 [Yy][Ee][Ss]) 307 echo -n ' do source routing=YES' 308 sysctl -w net.inet.ip.sourceroute=1 >/dev/null 309 ;; 310 esac 311 312 case ${accept_sourceroute} in 313 [Yy][Ee][Ss]) 314 echo -n ' accept source routing=YES' 315 sysctl -w net.inet.ip.accept_sourceroute=1 >/dev/null 316 ;; 317 esac 318 319 case ${tcp_keepalive} in 320 [Yy][Ee][Ss]) 321 echo -n ' TCP keepalive=YES' 322 sysctl -w net.inet.tcp.always_keepalive=1 >/dev/null 323 ;; 324 esac 325 326 case ${tcp_restrict_rst} in 327 [Yy][Ee][Ss]) 328 echo -n ' restrict TCP reset=YES' 329 sysctl -w net.inet.tcp.restrict_rst=1 >/dev/null 330 ;; 331 esac 332 333 case ${tcp_drop_synfin} in 334 [Yy][Ee][Ss]) 335 echo -n ' drop SYN+FIN packets=YES' 336 sysctl -w net.inet.tcp.drop_synfin=1 >/dev/null 337 ;; 338 esac 339 340 case ${ipxgateway_enable} in 341 [Yy][Ee][Ss]) 342 echo -n ' IPX gateway=YES' 343 sysctl -w net.ipx.ipx.ipxforwarding=1 >/dev/null 344 ;; 345 esac 346 347 case ${arpproxy_all} in 348 [Yy][Ee][Ss]) 349 echo -n ' ARP proxyall=YES' 350 sysctl -w net.link.ether.inet.proxyall=1 >/dev/null 351 ;; 352 esac 353 echo '.' 354 355 echo -n 'routing daemons:' 356 case ${router_enable} in 357 [Yy][Ee][Ss]) 358 echo -n " ${router}"; ${router} ${router_flags} 359 ;; 360 esac 361 362 case ${ipxrouted_enable} in 363 [Yy][Ee][Ss]) 364 echo -n ' IPXrouted' 365 IPXrouted ${ipxrouted_flags} > /dev/null 2>&1 366 ;; 367 esac 368 369 case ${mrouted_enable} in 370 [Yy][Ee][Ss]) 371 echo -n ' mrouted'; mrouted ${mrouted_flags} 372 ;; 373 esac 374 375 case ${rarpd_enable} in 376 [Yy][Ee][Ss]) 377 echo -n ' rarpd'; rarpd ${rarpd_flags} 378 ;; 379 esac 380 echo '.' 381 382 # Let future generations know we made it. 383 # 384 network_pass1_done=YES 385} 386 387network_pass2() { 388 echo -n 'Doing additional network setup:' 389 case ${named_enable} in 390 [Yy][Ee][Ss]) 391 echo -n ' named'; ${named_program:-named} ${named_flags} 392 ;; 393 esac 394 395 case ${ntpdate_enable} in 396 [Yy][Ee][Ss]) 397 echo -n ' ntpdate' 398 ${ntpdate_program:-ntpdate} ${ntpdate_flags} >/dev/null 2>&1 399 ;; 400 esac 401 402 case ${xntpd_enable} in 403 [Yy][Ee][Ss]) 404 echo -n ' ntpd'; ${xntpd_program:-ntpd} ${xntpd_flags} 405 ;; 406 esac 407 408 case ${timed_enable} in 409 [Yy][Ee][Ss]) 410 echo -n ' timed'; timed ${timed_flags} 411 ;; 412 esac 413 414 case ${portmap_enable} in 415 [Yy][Ee][Ss]) 416 echo -n ' portmap'; ${portmap_program:-/usr/sbin/portmap} ${portmap_flags} 417 ;; 418 esac 419 420 # Start ypserv if we're an NIS server. 421 # Run rpc.ypxfrd and rpc.yppasswdd only on the NIS master server. 422 # 423 case ${nis_server_enable} in 424 [Yy][Ee][Ss]) 425 echo -n ' ypserv'; ypserv ${nis_server_flags} 426 427 case ${nis_ypxfrd_enable} in 428 [Yy][Ee][Ss]) 429 echo -n ' rpc.ypxfrd' 430 rpc.ypxfrd ${nis_ypxfrd_flags} 431 ;; 432 esac 433 434 case ${nis_yppasswdd_enable} in 435 [Yy][Ee][Ss]) 436 echo -n ' rpc.yppasswdd' 437 rpc.yppasswdd ${nis_yppasswdd_flags} 438 ;; 439 esac 440 ;; 441 esac 442 443 # Start ypbind if we're an NIS client 444 # 445 case ${nis_client_enable} in 446 [Yy][Ee][Ss]) 447 echo -n ' ypbind'; ypbind ${nis_client_flags} 448 case ${nis_ypset_enable} in 449 [Yy][Ee][Ss]) 450 echo -n ' ypset'; ypset ${nis_ypset_flags} 451 ;; 452 esac 453 ;; 454 esac 455 456 # Start keyserv if we are running Secure RPC 457 # 458 case ${keyserv_enable} in 459 [Yy][Ee][Ss]) 460 echo -n ' keyserv'; keyserv ${keyserv_flags} 461 ;; 462 esac 463 464 # Start ypupdated if we are running Secure RPC and we are NIS master 465 # 466 case ${rpc_ypupdated_enable} in 467 [Yy][Ee][Ss]) 468 echo -n ' rpc.ypupdated'; rpc.ypupdated 469 ;; 470 esac 471 472 # Start ATM daemons 473 if [ -n "${atm_pass2_done}" ]; then 474 atm_pass3 475 fi 476 477 echo '.' 478 network_pass2_done=YES 479} 480 481network_pass3() { 482 echo -n 'Starting final network daemons:' 483 484 case ${nfs_server_enable} in 485 [Yy][Ee][Ss]) 486 if [ -r /etc/exports ]; then 487 echo -n ' mountd' 488 489 case ${weak_mountd_authentication} in 490 [Yy][Ee][Ss]) 491 mountd_flags="-n" 492 ;; 493 esac 494 495 mountd ${mountd_flags} 496 497 case ${nfs_reserved_port_only} in 498 [Yy][Ee][Ss]) 499 echo -n ' NFS on reserved port only=YES' 500 sysctl -w vfs.nfs.nfs_privport=1 >/dev/null 501 ;; 502 esac 503 504 echo -n ' nfsd'; nfsd ${nfs_server_flags} 505 506 if [ -n "${nfs_bufpackets}" ]; then 507 sysctl -w vfs.nfs.bufpackets=${nfs_bufpackets} \ 508 > /dev/null 509 fi 510 511 case ${rpc_lockd_enable} in 512 [Yy][Ee][Ss]) 513 echo -n ' rpc.lockd'; rpc.lockd 514 ;; 515 esac 516 517 case ${rpc_statd_enable} in 518 [Yy][Ee][Ss]) 519 echo -n ' rpc.statd'; rpc.statd 520 ;; 521 esac 522 fi 523 ;; 524 *) 525 case ${single_mountd_enable} in 526 [Yy][Ee][Ss]) 527 if [ -r /etc/exports ]; then 528 echo -n ' mountd' 529 530 case ${weak_mountd_authentication} in 531 [Yy][Ee][Ss]) 532 mountd_flags="-n" 533 ;; 534 esac 535 536 mountd ${mountd_flags} 537 fi 538 ;; 539 esac 540 ;; 541 esac 542 543 case ${nfs_client_enable} in 544 [Yy][Ee][Ss]) 545 echo -n ' nfsiod'; nfsiod ${nfs_client_flags} 546 if [ -n "${nfs_access_cache}" ]; then 547 echo -n " NFS access cache time=${nfs_access_cache}" 548 sysctl -w vfs.nfs.access_cache_timeout=${nfs_access_cache} \ 549 >/dev/null 550 fi 551 ;; 552 esac 553 554 # If /var/db/mounttab exists, some nfs-server has not been 555 # sucessfully notified about a previous client shutdown. 556 # If there is no /var/db/mounttab, we do nothing. 557 if [ -f /var/db/mounttab ]; then 558 rpc.umntall -k 559 fi 560 561 case ${amd_enable} in 562 [Yy][Ee][Ss]) 563 echo -n ' amd' 564 case ${amd_map_program} in 565 [Nn][Oo] | '') 566 ;; 567 *) 568 amd_flags="${amd_flags} `eval ${amd_map_program}`" 569 ;; 570 esac 571 572 if [ -n "${amd_flags}" ]; then 573 amd -p ${amd_flags} > /var/run/amd.pid 2> /dev/null 574 else 575 amd 2> /dev/null 576 fi 577 ;; 578 esac 579 580 case ${rwhod_enable} in 581 [Yy][Ee][Ss]) 582 echo -n ' rwhod'; rwhod ${rwhod_flags} 583 ;; 584 esac 585 586 # Kerberos runs ONLY on the Kerberos server machine 587 case ${kerberos_server_enable} in 588 [Yy][Ee][Ss]) 589 case ${kerberos_stash} in 590 [Yy][Ee][Ss]) 591 stash_flag=-n 592 ;; 593 *) 594 stash_flag= 595 ;; 596 esac 597 598 echo -n ' kerberos' 599 kerberos ${stash_flag} >> /var/log/kerberos.log & 600 601 case ${kadmind_server_enable} in 602 [Yy][Ee][Ss]) 603 echo -n ' kadmind' 604 (sleep 20; kadmind ${stash_flag} >/dev/null 2>&1 &) & 605 ;; 606 esac 607 unset stash_flag 608 ;; 609 esac 610 611 case ${pppoed_enable} in 612 [Yy][Ee][Ss]) 613 if [ -n "${pppoed_provider}" ]; then 614 pppoed_flags="${pppoed_flags} -p ${pppoed_provider}" 615 fi 616 echo -n ' pppoed'; 617 /usr/libexec/pppoed ${pppoed_flags} ${pppoed_interface} 618 ;; 619 esac 620 621 case ${sshd_enable} in 622 [Yy][Ee][Ss]) 623 if [ ! -f /etc/ssh/ssh_host_key ]; then 624 echo ' creating ssh RSA host key'; 625 /usr/bin/ssh-keygen -N "" -f /etc/ssh/ssh_host_key 626 fi 627 if [ ! -f /etc/ssh/ssh_host_dsa_key ]; then 628 echo ' creating ssh DSA host key'; 629 /usr/bin/ssh-keygen -d -N "" -f /etc/ssh/ssh_host_dsa_key 630 fi 631 ;; 632 esac 633 634 echo '.' 635 network_pass3_done=YES 636} 637 638network_pass4() { 639 echo -n 'Additional TCP options:' 640 case ${log_in_vain} in 641 [Nn][Oo] | '') 642 ;; 643 *) 644 echo -n ' log_in_vain=YES' 645 sysctl -w net.inet.tcp.log_in_vain=1 >/dev/null 646 sysctl -w net.inet.udp.log_in_vain=1 >/dev/null 647 ;; 648 esac 649 650 echo '.' 651 network_pass4_done=YES 652} 653