85 lines
2.2 KiB
Bash
Executable File
85 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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# executed by udhcpc
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# parameters: $1 and environment
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# $1 is:
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#
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# deconfig: udhcpc starts, or lease is lost.
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# Environment example: interface=eth0
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#
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# bound: lease is obtained. Environment example:
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# dhcptype=5
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# serverid=172.16.42.102
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# lease=97200
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# interface=eth0
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# ip=172.16.42.177
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# subnet=255.255.255.0
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# mask=24
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# broadcast=172.16.22.255
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# router=172.16.42.98
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# dns=10.34.32.125 10.32.63.5 10.34.255.7 10.11.255.27
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# domain=lab.example.com example.com
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# ntpsrv=10.34.32.125 10.34.255.7
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#
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# renew: lease is renewed. Environment is similar to "bound".
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# The IP address does not change, however, the other DHCP parameters,
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# such as the default gateway, subnet mask, and dns server may change.
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#
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# nak: udhcpc received a NAK message.
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# Environment example: interface=eth0
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#
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# leasefail: udhcpc cannot obtain a lease (DHCP server not responding, etc).
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# Environment example: interface=eth0
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# TODO: put $domain into /etc/resolv.conf (thru /var/service/fw)
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service=${PWD##*/}
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file_ipconf="$service.ipconf"
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file_ntpconf="$service.ntpconf"
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dir_ipconf="/var/run/service/fw"
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dir_ntpconf="/var/run/service/ntpd"
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exec >/dev/null
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#exec >>"$0.out" #debug
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exec 2>&1
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echo "`date`: Params: $*"
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if test x"$1" != x"bound" && test x"$1" != x"renew" ; then
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# Reconfigure network with this interface disabled
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echo "Deconfiguring"
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rm "env.out"
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rm "$file_ipconf"
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rm "$file_ntpconf"
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rm "$dir_ipconf/$file_ipconf"
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rm "$dir_ntpconf/$file_ntpconf"
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sv u /var/service/fw
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exit
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fi
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# Bound: we've got the lease
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# Record information for e.g. dhcp_$IF_pinger service
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env >"env.out"
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./convert2ipconf "$file_ipconf"
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# Reconfigure routing and firewall if needed
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diff --brief "$file_ipconf" "$dir_ipconf/$file_ipconf" >/dev/null 2>&1
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if test $? != 0; then
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echo "Reconfiguring fw"
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mkdir -p "$dir_ipconf" 2>/dev/null
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cp "$file_ipconf" "$dir_ipconf/$file_ipconf"
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sv u /var/service/fw
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fi
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if test -d /var/service/ntpd; then
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./convert2ntpconf "$file_ntpconf"
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# Reconfigure ntp server addresses if needed
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diff --brief "$file_ntpconf" "$dir_ntpconf/$file_ntpconf" >/dev/null 2>&1
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if test $? != 0; then
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echo "Reconfiguring ntp"
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mkdir -p "$dir_ntpconf" 2>/dev/null
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cp "$file_ntpconf" "$dir_ntpconf/$file_ntpconf"
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sv t /var/service/ntpd
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sv u /var/service/ntpd
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fi
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fi
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