bsdos revision 1.1.1.1
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 0 325
Indexes created Fri Jun 26 00:24:39 UTC 2026