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Add two new template sources, /conf/bcast/${ipbca} and /conf/ip/${ip}.

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These allow large installations to keep their /conf directory down to a
managable number of entries.

Clean up the handling of dhcp_cookie.
This commit is contained in:
Brooks Davis 2005-08-17 00:28:38 +00:00
parent 751a4770f7
commit 13b302a79f
1 changed files with 18 additions and 7 deletions
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25
etc/rc.initdiskless
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@ -43,16 +43,19 @@
# default secondary universal base, typically overriding some
# of the files in the original root;
# ${ipba} where ${ipba} is the assigned broadcast IP address
# bcast/${ipba} same as above
# ${class} where ${class} is a list of directories supplied by
# bootp/dhcp through the T134 option.
# ${ipba} and ${class} are typicall used to configure features
# for group of diskless clients, or even individual features;
# ${ip} where ${ip} is the machine's assigned IP address, typically
# used to set host-specific features;
# ip/${ip} same as above
#
# Template directories are scanned in the order they are listed above,
# with each sucessive directory overriding (merged into) the previous one;
# non-existing directories are ignored.
# non-existing directories are ignored. The subdirectory forms exist to
# help keep the top level /conf managable in large installations.
#
# The existence of a directory /conf/T/M causes this script to create a
# memory filesystem mounted as /M on the client.
@ -169,6 +172,7 @@ create_md() {
bootp_ifc=""
bootp_ipa=""
bootp_ipbca=""
class=""
if [ ${dlv:=0} -ne 0 ] ; then
iflist=`ifconfig -l`
for i in ${iflist} ; do
@ -186,12 +190,10 @@ if [ ${dlv:=0} -ne 0 ] ; then
break
fi
done
# Insert the directories passed with the T134 bootp cookie
# in the list of paths used for templates.
i="`/sbin/sysctl -n kern.bootp_cookie`"
[ "${i}" != "" ] && bootp_ipbca="${bootp_ipbca} ${i}"
# Get the values passed with the T134 bootp cookie.
class="`/sbin/sysctl -n kern.bootp_cookie`"
echo "Interface ${bootp_ifc} IP-Address ${bootp_ipa} Broadcast ${bootp_ipbca}"
echo "Interface ${bootp_ifc} IP-Address ${bootp_ipa} Broadcast ${bootp_ipbca} ${class}"
fi
# Figure out our NFS root path
@ -206,7 +208,16 @@ while [ $# -ge 1 ] ; do
done
# The list of directories with template files
templates="base default ${bootp_ipbca} ${bootp_ipa}"
templates="base default"
if [ -n "${bootp_ipbca}" ]; then
templates="${templates} ${bootp_ipbca} bcast/${bootp_ipbca}"
fi
if [ -n "${class}" ]; then
templates="${templates} ${class}"
fi
if [ -n "${bootp_ipa}" ]; then
templates="${templates} ${bootp_ipa} ip/${bootp_ipa}"
fi
# The list of filesystems to umount after the copy
to_umount=""