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
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to bsdos CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / dhcp / client / scripts