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# Shell function library to initialize Kerberos credentials
#
# Written by Russ Allbery <rra@stanford.edu>
# Copyright 2009, 2010 Board of Trustees, Leland Stanford Jr. University
#
# See LICENSE for licensing terms.
# Set up Kerberos, including the ticket cache environment variable. Bail out
# if not successful, return 0 if successful, and return 1 if Kerberos is not
# configured. Sets the global principal variable to the principal to use.
kerberos_setup () {
local keytab
keytab=`test_file_path data/test.keytab`
principal=`test_file_path data/test.principal`
principal=`cat "$principal" 2>/dev/null`
if [ -z "$keytab" ] || [ -z "$principal" ] ; then
return 1
fi
KRB5CCNAME="$BUILD/data/test.cache"; export KRB5CCNAME
kinit -k -t "$keytab" "$principal" >/dev/null </dev/null
status=$?
if [ $status != 0 ] ; then
kinit -t "$keytab" "$principal" >/dev/null </dev/null
status=$?
fi
if [ $status != 0 ] ; then
kinit -k -K "$keytab" "$principal" >/dev/null </dev/null
status=$?
fi
if [ $status != 0 ] ; then
bail "Can't get Kerberos tickets"
fi
return 0
}
# Clean up at the end of a test. Currently only removes the ticket cache.
kerberos_cleanup () {
rm -f "$BUILD/data/test.cache"
}
# List the contents of a keytab with enctypes and keys. This adjusts for the
# difference between MIT Kerberos (which uses klist) and Heimdal (which uses
# ktutil). Be careful to try klist first, since the ktutil on MIT Kerberos
# may just hang. Takes the keytab to list and the file into which to save the
# output, and strips off the header containing the file name.
ktutil_list () {
if klist -keK "$1" > ktutil-tmp 2>/dev/null ; then
:
else
ktutil -k "$1" list --keys > ktutil-tmp < /dev/null 2>/dev/null
fi
sed -e '/Keytab name:/d' -e "/^[^ ]*:/d" ktutil-tmp > "$2"
rm -f ktutil-tmp
}
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