Annotation of embedaddon/dhcp/client/scripts/openbsd, revision 1.1.1.1
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 $alias_subnet_mask"
81: fi
82:
83: if [ x$reason = xMEDIUM ]; then
84: eval "ifconfig $interface $medium"
85: eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1
86: sleep 1
87: exit_with_hooks 0
88: fi
89:
90: ###
91: ### DHCPv4 Handlers
92: ###
93:
94: if [ x$reason = xPREINIT ]; then
95: if [ x$alias_ip_address != x ]; then
96: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
97: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
98: fi
99: ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
100: broadcast 255.255.255.255 up
101: exit_with_hooks 0
102: fi
103:
104: if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
105: exit_with_hooks 0;
106: fi
107:
108: if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
109: [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
110: current_hostname=`hostname`
111: if [ x$current_hostname = x ] || \
112: [ x$current_hostname = x$old_host_name ]; then
113: if [ x$current_hostname = x ] || \
114: [ x$new_host_name != x$old_host_name ]; then
115: hostname $new_host_name
116: fi
117: fi
118:
119: if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
120: [ x$alias_ip_address != x$old_ip_address ]; then
121: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
122: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
123: fi
124: if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]
125: then
126: eval "ifconfig $interface inet -alias $old_ip_address $medium"
127: route delete $old_ip_address 127.1 >/dev/null 2>&1
128: for router in $old_routers; do
129: route delete default $router >/dev/null 2>&1
130: done
131: if [ "$old_static_routes" != "" ]; then
132: set $old_static_routes
133: while [ $# -gt 1 ]; do
134: route delete $1 $2
135: shift; shift
136: done
137: fi
138: arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' |sh
139: fi
140: if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
141: [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
142: eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
143: $new_broadcast_arg $medium"
144: route add $new_ip_address 127.1 >/dev/null 2>&1
145: for router in $new_routers; do
146: route add default $router >/dev/null 2>&1
147: done
148: if [ "$new_static_routes" != "" ]; then
149: set $new_static_routes
150: while [ $# -gt 1 ]; do
151: route add $1 $2
152: shift; shift
153: done
154: fi
155: else
156: # we haven't changed the address, have we changed other options
157: # that we wish to update?
158: if [ x$new_routers != x ] && [ x$new_routers != x$old_routers ] ; then
159: # if we've changed routers delete the old and add the new.
160: $LOGGER "New Routers: $new_routers"
161: for router in $old_routers; do
162: route delete default $router >/dev/null 2>&1
163: done
164: for router in $new_routers; do
165: route add default $router >/dev/null 2>&1
166: done
167: fi
168: fi
169: if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
170: then
171: ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
172: route add $alias_ip_address 127.0.0.1
173: fi
174: make_resolv_conf
175: exit_with_hooks 0
176: fi
177:
178: if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
179: || [ x$reason = xSTOP ]; then
180: if [ x$alias_ip_address != x ]; then
181: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
182: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
183: fi
184: if [ x$old_ip_address != x ]; then
185: eval "ifconfig $interface inet -alias $old_ip_address $medium"
186: route delete $old_ip_address 127.1 >/dev/null 2>&1
187: for router in $old_routers; do
188: route delete default $router >/dev/null 2>&1
189: done
190: if [ "$old_static_routes" != "" ]; then
191: set $old_static_routes
192: while [ $# -gt 1 ]; do
193: route delete $1 $2
194: shift; shift
195: done
196: fi
197: arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
198: |sh >/dev/null 2>&1
199: fi
200: if [ x$alias_ip_address != x ]; then
201: ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
202: route add $alias_ip_address 127.0.0.1
203: fi
204: exit_with_hooks 0
205: fi
206:
207: if [ x$reason = xTIMEOUT ]; then
208: if [ x$alias_ip_address != x ]; then
209: ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
210: route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
211: fi
212: eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
213: $new_broadcast_arg $medium"
214: sleep 1
215: if [ "$new_routers" != "" ]; then
216: set $new_routers
217: if ping -q -c 1 -w 1 $1; then
218: if [ x$new_ip_address != x$alias_ip_address ] && \
219: [ x$alias_ip_address != x ]; then
220: ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
221: route add $alias_ip_address 127.0.0.1
222: fi
223: route add $new_ip_address 127.1 >/dev/null 2>&1
224: for router in $new_routers; do
225: route add default $router >/dev/null 2>&1
226: done
227: set $new_static_routes
228: while [ $# -gt 1 ]; do
229: route add $0 $1
230: shift; shift
231: done
232: make_resolv_conf
233: exit_with_hooks 0
234: fi
235: fi
236: eval "ifconfig $interface inet -alias $new_ip_address $medium"
237: for router in $old_routers; do
238: route delete default $router >/dev/null 2>&1
239: done
240: if [ "$old_static_routes" != "" ]; then
241: set $old_static_routes
242: while [ $# -gt 1 ]; do
243: route delete $1 $2
244: shift; shift
245: done
246: fi
247: arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
248: |sh >/dev/null 2>&1
249: exit_with_hooks 1
250: fi
251:
252: ###
253: ### DHCPv6 Handlers
254: ###
255:
256: if [ ${reason} = PREINIT6 ] ; then
257: # Ensure interface is up.
258: ifconfig ${interface} up
259:
260: # XXX: Remove any stale addresses from aborted clients.
261:
262: exit_with_hooks 0
263: fi
264:
265: if [ x${old_ip6_prefix} != x ] || [ x${new_ip6_prefix} != x ] ; then
266: echo Prefix ${reason} old=${old_ip6_prefix} new=${new_ip6_prefix}
267:
268: exit_with_hooks 0
269: fi
270:
271: if [ ${reason} = BOUND6 ] ; then
272: if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ] ; then
273: exit_with_hooks 2;
274: fi
275:
276: ifconfig ${interface} inet6 add ${new_ip6_address}/${new_ip6_prefixlen}
277:
278: # Check for nameserver options.
279: make_resolv_conf
280:
281: exit_with_hooks 0
282: fi
283:
284: if [ ${reason} = RENEW6 ] || [ ${reason} = REBIND6 ] ; then
285: # Make sure nothing has moved around on us.
286:
287: # Nameservers/domains/etc.
288: if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
289: [ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ] ; then
290: make_resolv_conf
291: fi
292:
293: exit_with_hooks 0
294: fi
295:
296: if [ ${reason} = DEPREF6 ] ; then
297: if [ x${new_ip6_prefixlen} = x ] ; then
298: exit_with_hooks 2;
299: fi
300:
301: # XXX:
302: # There doesn't appear to be a way to update an addr to indicate
303: # preference.
304:
305: exit_with_hooks 0
306: fi
307:
308: if [ ${reason} = EXPIRE6 -o ${reason} = RELEASE6 -o ${reason} = STOP6 ] ; then
309: if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ] ; then
310: exit_with_hooks 2;
311: fi
312:
313: ifconfig ${interface} inet6 delete ${old_ip6_address}/${old_ip6_prefixlen}
314:
315: exit_with_hooks 0
316: fi
317:
318: exit_with_hooks 0
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