Annotation of embedaddon/dhcp/client/scripts/bsdos, revision 1.1
1.1 ! misho 1: #!/bin/sh
! 2:
! 3: make_resolv_conf() {
! 4: if [ x"$new_domain_name_servers" != x ]; then
! 5: cat /dev/null > /etc/resolv.conf.dhclient
! 6: if [ "x$new_domain_search" != x ]; then
! 7: echo search $new_domain_search >> /etc/resolv.conf.dhclient
! 8: elif [ "x$new_domain_name" != x ]; then
! 9: # Note that the DHCP 'Domain Name Option' is really just a domain
! 10: # name, and that this practice of using the domain name option as
! 11: # a search path is both nonstandard and deprecated.
! 12: echo search $new_domain_name >> /etc/resolv.conf.dhclient
! 13: fi
! 14: for nameserver in $new_domain_name_servers; do
! 15: echo nameserver $nameserver >> /etc/resolv.conf.dhclient
! 16: done
! 17:
! 18: mv /etc/resolv.conf.dhclient /etc/resolv.conf
! 19: elif [ "x${new_dhcp6_name_servers}" != x ] ; then
! 20: cat /dev/null > /etc/resolv.conf.dhclient6
! 21: chmod 644 /etc/resolv.conf.dhclient6
! 22:
! 23: if [ "x${new_dhcp6_domain_search}" != x ] ; then
! 24: echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6
! 25: fi
! 26: for nameserver in ${new_dhcp6_name_servers} ; do
! 27: # If the nameserver has a link-local address
! 28: # add a <zone_id> (interface name) to it.
! 29: case $nameserver in
! 30: fe80:*) zone_id="%$interface";;
! 31: FE80:*) zone_id="%$interface";;
! 32: *) zone_id='';;
! 33: esac
! 34: echo nameserver ${nameserver}$zone_id >> /etc/resolv.conf.dhclient6
! 35: done
! 36:
! 37: mv /etc/resolv.conf.dhclient6 /etc/resolv.conf
! 38: fi
! 39: }
! 40:
! 41: # Must be used on exit. Invokes the local dhcp client exit hooks, if any.
! 42: exit_with_hooks() {
! 43: exit_status=$1
! 44: if [ -f /etc/dhclient-exit-hooks ]; then
! 45: . /etc/dhclient-exit-hooks
! 46: fi
! 47: # probably should do something with exit status of the local script
! 48: exit $exit_status
! 49: }
! 50:
! 51: # Invoke the local dhcp client enter hooks, if they exist.
! 52: if [ -f /etc/dhclient-enter-hooks ]; then
! 53: exit_status=0
! 54: . /etc/dhclient-enter-hooks
! 55: # allow the local script to abort processing of this state
! 56: # local script must set exit_status variable to nonzero.
! 57: if [ $exit_status -ne 0 ]; then
! 58: exit $exit_status
! 59: fi
! 60: fi
! 61:
! 62: if [ x$new_network_number != x ]; then
! 63: echo New Network Number: $new_network_number
! 64: fi
! 65:
! 66: if [ x$new_broadcast_address != x ]; then
! 67: echo New Broadcast Address: $new_broadcast_address
! 68: new_broadcast_arg="broadcast $new_broadcast_address"
! 69: fi
! 70: if [ x$old_broadcast_address != x ]; then
! 71: old_broadcast_arg="broadcast $old_broadcast_address"
! 72: fi
! 73: if [ x$new_subnet_mask != x ]; then
! 74: new_netmask_arg="netmask $new_subnet_mask"
! 75: fi
! 76: if [ x$old_subnet_mask != x ]; then
! 77: old_netmask_arg="netmask $old_subnet_mask"
! 78: fi
! 79: if [ x$alias_subnet_mask != x ]; then
! 80: alias_subnet_arg="netmask $alias_subnet_mask"
! 81: fi
! 82: if [ x$new_interface_mtu != x ]; then
! 83: mtu_arg="mtu $new_interface_mtu"
! 84: fi
! 85: if [ x$IF_METRIC != x ]; then
! 86: metric_arg="metric $IF_METRIC"
! 87: fi
! 88:
! 89: if [ x$reason = xMEDIUM ]; then
! 90: eval "ifconfig $interface $medium"
! 91: eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1
! 92: sleep 1
! 93: exit_with_hooks 0
! 94: fi
! 95:
! 96: ###
! 97: ### DHCPv4 Handlers
! 98: ###
! 99:
! 100: if [ x$reason = xPREINIT ]; then
! 101: if [ x$alias_ip_address != x ]; then
! 102: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
! 103: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
! 104: fi
! 105: ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
! 106: broadcast 255.255.255.255 up
! 107: exit_with_hooks 0
! 108: fi
! 109:
! 110: if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
! 111: exit_with_hooks 0;
! 112: fi
! 113:
! 114: if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
! 115: [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
! 116: current_hostname=`hostname`
! 117: if [ x$current_hostname = x ] || \
! 118: [ x$current_hostname = x$old_host_name ]; then
! 119: if [ x$current_hostname = x ] || \
! 120: [ x$new_host_name != x$old_host_name ]; then
! 121: hostname $new_host_name
! 122: fi
! 123: fi
! 124:
! 125: if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
! 126: [ x$alias_ip_address != x$old_ip_address ]; then
! 127: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
! 128: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
! 129: fi
! 130: if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]
! 131: then
! 132: eval "ifconfig $interface inet -alias $old_ip_address $medium"
! 133: route delete $old_ip_address 127.1 >/dev/null 2>&1
! 134: for router in $old_routers; do
! 135: route delete default $router >/dev/null 2>&1
! 136: done
! 137: if [ "$old_static_routes" != "" ]; then
! 138: set $old_static_routes
! 139: while [ $# -gt 1 ]; do
! 140: route delete $1 $2
! 141: shift; shift
! 142: done
! 143: fi
! 144: arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' |sh
! 145: fi
! 146: if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
! 147: [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
! 148: eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
! 149: $new_broadcast_arg $mtu_arg $metric_arg $medium"
! 150: route add $new_ip_address 127.1 >/dev/null 2>&1
! 151: for router in $new_routers; do
! 152: route add default $router >/dev/null 2>&1
! 153: done
! 154: if [ "$new_static_routes" != "" ]; then
! 155: set $new_static_routes
! 156: while [ $# -gt 1 ]; do
! 157: route add $1 $2
! 158: shift; shift
! 159: done
! 160: fi
! 161: else
! 162: # we haven't changed the address, have we changed other options
! 163: # that we wish to update?
! 164: if [ x$new_routers != x ] && [ x$new_routers != x$old_routers ] ; then
! 165: # if we've changed routers delete the old and add the new.
! 166: $LOGGER "New Routers: $new_routers"
! 167: for router in $old_routers; do
! 168: route delete default $router >/dev/null 2>&1
! 169: done
! 170: for router in $new_routers; do
! 171: route add default $router >/dev/null 2>&1
! 172: done
! 173: fi
! 174: fi
! 175: if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
! 176: then
! 177: ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
! 178: route add $alias_ip_address 127.0.0.1
! 179: fi
! 180: make_resolv_conf
! 181: exit_with_hooks 0
! 182: fi
! 183:
! 184: if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
! 185: || [ x$reason = xSTOP ]; then
! 186: if [ x$alias_ip_address != x ]; then
! 187: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
! 188: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
! 189: fi
! 190: if [ x$old_ip_address != x ]; then
! 191: eval "ifconfig $interface inet -alias $old_ip_address $medium"
! 192: route delete $old_ip_address 127.1 >/dev/null 2>&1
! 193: for router in $old_routers; do
! 194: route delete default $router >/dev/null 2>&1
! 195: done
! 196: if [ "$old_static_routes" != "" ]; then
! 197: set $old_static_routes
! 198: while [ $# -gt 1 ]; do
! 199: route delete $1 $2
! 200: shift; shift
! 201: done
! 202: fi
! 203: arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
! 204: |sh >/dev/null 2>&1
! 205: fi
! 206: if [ x$alias_ip_address != x ]; then
! 207: ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
! 208: route add $alias_ip_address 127.0.0.1
! 209: fi
! 210: exit_with_hooks 0
! 211: fi
! 212:
! 213: if [ x$reason = xTIMEOUT ]; then
! 214: if [ x$alias_ip_address != x ]; then
! 215: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
! 216: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
! 217: fi
! 218: eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
! 219: $new_broadcast_arg $mtu_arg $metric_arg $medium"
! 220: sleep 1
! 221: if [ "$new_routers" != "" ]; then
! 222: set $new_routers
! 223: if ping -q -c 1 -w 1 $1; then
! 224: if [ x$new_ip_address != x$alias_ip_address ] && \
! 225: [ x$alias_ip_address != x ]; then
! 226: ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
! 227: route add $alias_ip_address 127.0.0.1
! 228: fi
! 229: route add $new_ip_address 127.1 >/dev/null 2>&1
! 230: for router in $new_routers; do
! 231: route add default $router >/dev/null 2>&1
! 232: done
! 233: set $new_static_routes
! 234: while [ $# -gt 1 ]; do
! 235: route add $0 $1
! 236: shift; shift
! 237: done
! 238: make_resolv_conf
! 239: exit_with_hooks 0
! 240: fi
! 241: fi
! 242: eval "ifconfig $interface inet -alias $new_ip_address $medium"
! 243: for router in $old_routers; do
! 244: route delete default $router >/dev/null 2>&1
! 245: done
! 246: if [ "$old_static_routes" != "" ]; then
! 247: set $old_static_routes
! 248: while [ $# -gt 1 ]; do
! 249: route delete $1 $2
! 250: shift; shift
! 251: done
! 252: fi
! 253: arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
! 254: |sh >/dev/null 2>&1
! 255: exit_with_hooks 1
! 256: fi
! 257:
! 258: ###
! 259: ### DHCPv6 Handlers
! 260: ###
! 261:
! 262: if [ ${reason} = PREINIT6 ] ; then
! 263: # Ensure interface is up.
! 264: ifconfig ${interface} up
! 265:
! 266: # XXX: Remove any stale addresses from aborted clients.
! 267:
! 268: exit_with_hooks 0
! 269: fi
! 270:
! 271: if [ x${old_ip6_prefix} != x ] || [ x${new_ip6_prefix} != x ] ; then
! 272: echo Prefix ${reason} old=${old_ip6_prefix} new=${new_ip6_prefix}
! 273:
! 274: exit_with_hooks 0
! 275: fi
! 276:
! 277: if [ ${reason} = BOUND6 ] ; then
! 278: if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ] ; then
! 279: exit_with_hooks 2;
! 280: fi
! 281:
! 282: ifconfig ${interface} inet6 add ${new_ip6_address}/${new_ip6_prefixlen}
! 283:
! 284: # Check for nameserver options.
! 285: make_resolv_conf
! 286:
! 287: exit_with_hooks 0
! 288: fi
! 289:
! 290: if [ ${reason} = RENEW6 ] || [ ${reason} = REBIND6 ] ; then
! 291: # Make sure nothing has moved around on us.
! 292:
! 293: # Nameservers/domains/etc.
! 294: if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
! 295: [ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ] ; then
! 296: make_resolv_conf
! 297: fi
! 298:
! 299: exit_with_hooks 0
! 300: fi
! 301:
! 302: if [ ${reason} = DEPREF6 ] ; then
! 303: if [ x${new_ip6_prefixlen} = x ] ; then
! 304: exit_with_hooks 2;
! 305: fi
! 306:
! 307: # XXX:
! 308: # There doesn't appear to be a way to update an addr to indicate
! 309: # preference.
! 310:
! 311: exit_with_hooks 0
! 312: fi
! 313:
! 314: if [ ${reason} = EXPIRE6 -o ${reason} = RELEASE6 -o ${reason} = STOP6 ] ; then
! 315: if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ] ; then
! 316: exit_with_hooks 2;
! 317: fi
! 318:
! 319: ifconfig ${interface} inet6 delete ${old_ip6_address}/${old_ip6_prefixlen}
! 320:
! 321: exit_with_hooks 0
! 322: fi
! 323:
! 324: exit_with_hooks 0
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