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a4ecd112e7
We need to make sure that winbind's idmap_ad deals fine with an expired krb ticket used to connect to AD via LDAP. In a customer situation we have seen the RFC4511 section 4.4.1 unsolicited ldap exop response coming through, but the TCP disconnect that Windows seems to do after that did not make it. Winbind deals fine with a TCP disconnect, but right now it does not handle just the section 4.4.1 response properly: It completely hangs. This test requests a ticket valid for 5 seconds and makes the LDAP server postpone the TCP disconnect after the ticket expiry for 10 seconds. The tests that winbind reacts to the ticket expiry exop response by making sure in this situation the wbinfo call running into the issue takes less than 8 seconds. If it did not look at the expiry exop response, it would take more than 10 seconds. Bug: https://bugzilla.samba.org/show_bug.cgi?id=14465 Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
75 lines
2.5 KiB
Bash
Executable File
75 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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# Test winbind ad backend behaviour when the kerberos ticket expires
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if [ $# -ne 1 ]; then
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echo Usage: $0 DOMAIN
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exit 1
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fi
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DOMAIN="$1"
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wbinfo="$VALGRIND $BINDIR/wbinfo"
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net="$VALGRIND $BINDIR/net"
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failed=0
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. `dirname $0`/../../testprogs/blackbox/subunit.sh
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DOMAIN_SID=$($wbinfo -n "$DOMAIN/" | cut -f 1 -d " ")
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if [ $? -ne 0 ] ; then
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echo "Could not find domain SID" | subunit_fail_test "test_idmap_ad"
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exit 1
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fi
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ADMINS_SID="$DOMAIN_SID-512"
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# Previous tests might have put in a mapping
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$net cache del IDMAP/SID2XID/"$ADMINS_SID"
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# Trigger a winbind ad connection with a 5-second ticket lifetime,
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# see the smb.conf for the ad_member_idmap_ad environment we're in
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#
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# We expect failure here because there are no mappings in AD. In this
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# test we are only interested in the winbind LDAP connection as such,
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# we don't really care whether idmap_ad works fine. This is done in
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# different tests. And a negative lookup also triggers the LDAP
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# connection.
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testit_expect_failure "Deleting0 IDMAP/SID2XID/$ADMINS_SID" $net cache del IDMAP/SID2XID/"$ADMINS_SID" ||
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failed=$(expr $failed + 1)
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testit_expect_failure "Expecting failure1, no mapping in AD" $wbinfo --sid-to-gid "$ADMINS_SID" ||
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failed=$(expr $failed + 1)
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testit "Deleting1 IDMAP/SID2XID/$ADMINS_SID" $net cache del IDMAP/SID2XID/"$ADMINS_SID" ||
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failed=$(expr $failed + 1)
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# allow our kerberos ticket to expire
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testit "Sleeping for 6 seconds" sleep 6 || failed=$(expr $failed + 1)
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# Try again, check how long it took to recover from ticket expiry
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#
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# On the LDAP connection two things happen: First we get an
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# unsolicited exop response telling us the network session was
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# abandoned, and secondly the LDAP server will kill the TCP
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# connection. Our ldap server is configured to defer the TCP
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# disconnect by 10 seconds. We need to make sure that winbind already
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# reacts to the unsolicited exop reply, discarding the connection. The
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# only way is to make sure the following wbinfo does not take too
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# long.
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# We need to do the test command in this funny way as on gitlab we're
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# using the bash builtin
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START=$(date +%s)
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testit_expect_failure "Expecting failure2, no mapping in AD" $wbinfo --sid-to-gid "$ADMINS_SID" ||
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failed=$(expr $failed + 1)
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END=$(date +%s)
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DURATION=$(expr $END - $START)
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testit "timeout DURATION[$DURATION] < 8" test "$DURATION" -le 8 ||
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failed=$(expr $failed + 1)
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testit "Deleting2 IDMAP/SID2XID/$ADMINS_SID" $net cache del IDMAP/SID2XID/"$ADMINS_SID" ||
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failed=$(expr $failed + 1)
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exit $failed
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