wintest Share more of the S4 test code with the s3 test

This allows us to run a private BIND in the S3 test, and allows the S3
test to join a freshly provisioned AD instance if the VM isn't already
configured.

Andrew Bartlett

1 files changed, 239 insertions, 0 deletions

diff --git a/wintest/wintest.py b/wintest/wintest.py
index 0d65116562..af4588f5c8 100644
--- a/wintest/wintest.py
+++ b/wintest/wintest.py
@@ -16,6 +16,23 @@ class wintest():
         os.putenv('PYTHONUNBUFFERED', '1')
         self.parser = optparse.OptionParser("wintest")
 
+    def check_prerequesites(self):
+        self.info("Checking prerequesites")
+        self.setvar('HOSTNAME', self.cmd_output("hostname -s").strip())
+        if os.getuid() != 0:
+            raise Exception("You must run this script as root")
+        self.run_cmd('ifconfig ${INTERFACE} ${INTERFACE_NET} up')
+        if self.getvar('INTERFACE_IPV6'):
+            self.run_cmd('ifconfig ${INTERFACE} inet6 del ${INTERFACE_IPV6}/64', checkfail=False)
+            self.run_cmd('ifconfig ${INTERFACE} inet6 add ${INTERFACE_IPV6}/64 up')
+
+    def stop_vms(self):
+        '''Shut down any existing alive VMs, so they do not collide with what we are doing'''
+        self.info('Shutting down any of our VMs already running')
+        vms = self.get_vms()
+        for v in vms:
+            self.vm_poweroff(v, checkfail=False)
+
     def setvar(self, varname, value):
         '''set a substitution variable'''
         self.vars[varname] = value
@@ -268,6 +285,176 @@ class wintest():
         child.expect('\d+.\d+.\d+.\d+')
         return child.after
 
+    def rndc_cmd(self, cmd, checkfail=True):
+        '''run a rndc command'''
+        self.run_cmd("${RNDC} -c ${PREFIX}/etc/rndc.conf %s" % cmd, checkfail=checkfail)
+
+    def named_supports_gssapi_keytab(self):
+        '''see if named supports tkey-gssapi-keytab'''
+        self.write_file("${PREFIX}/named.conf.test",
+                     'options { tkey-gssapi-keytab "test"; };')
+        try:
+            self.run_cmd("${NAMED_CHECKCONF} ${PREFIX}/named.conf.test")
+        except subprocess.CalledProcessError:
+            return False
+        return True
+
+    def set_nameserver(self, nameserver):
+        '''set the nameserver in resolv.conf'''
+        self.write_file("/etc/resolv.conf.wintest", '''
+# Generated by wintest, the Samba v Windows automated testing system
+nameserver %s
+
+# your original resolv.conf appears below:
+''' % self.substitute(nameserver))
+        child = self.pexpect_spawn("cat /etc/resolv.conf", crlf=False)
+        i = child.expect(['your original resolv.conf appears below:', pexpect.EOF])
+        if i == 0:
+            child.expect(pexpect.EOF)
+        contents = child.before.lstrip().replace('\r', '')
+        self.write_file('/etc/resolv.conf.wintest', contents, mode='a')
+        self.write_file('/etc/resolv.conf.wintest-bak', contents)
+        self.run_cmd("mv -f /etc/resolv.conf.wintest /etc/resolv.conf")
+        self.resolv_conf_backup = '/etc/resolv.conf.wintest-bak';
+
+    def configure_bind(self, kerberos_support=False, include=None):
+        self.chdir('${PREFIX}')
+
+        nameserver = self.get_nameserver()
+        if nameserver == self.getvar('INTERFACE_IP'):
+            raise RuntimeError("old /etc/resolv.conf must not contain %s as a nameserver, this will create loops with the generated dns configuration" % nameserver)
+        self.setvar('DNSSERVER', nameserver)
+
+        if self.getvar('INTERFACE_IPV6'):
+            ipv6_listen = 'listen-on-v6 port 53 { ${INTERFACE_IPV6}; };'
+        else:
+            ipv6_listen = ''
+        self.setvar('BIND_LISTEN_IPV6', ipv6_listen)
+
+        if not kerberos_support:
+            self.setvar("NAMED_TKEY_OPTION", "")
+        else:
+            if self.named_supports_gssapi_keytab():
+                self.setvar("NAMED_TKEY_OPTION",
+                         'tkey-gssapi-keytab "${PREFIX}/private/dns.keytab";')
+            else:
+                self.info("LCREALM=${LCREALM}")
+                self.setvar("NAMED_TKEY_OPTION",
+                         '''tkey-gssapi-credential "DNS/${LCREALM}";
+                            tkey-domain "${LCREALM}";
+                 ''')
+            self.putenv("KRB5_CONFIG", '${PREFIX}/private/krb5.conf')
+            self.putenv('KEYTAB_FILE', '${PREFIX}/private/dns.keytab')
+            self.putenv('KRB5_KTNAME', '${PREFIX}/private/dns.keytab')
+
+        if include:
+            self.setvar("NAMED_INCLUDE", 'include "%s";' % include)
+        else:
+            self.setvar("NAMED_INCLUDE", '')
+
+        self.run_cmd("mkdir -p ${PREFIX}/etc")
+
+        self.write_file("etc/named.conf", '''
+options {
+	listen-on port 53 { ${INTERFACE_IP};  };
+	${BIND_LISTEN_IPV6}
+	directory 	"${PREFIX}/var/named";
+	dump-file 	"${PREFIX}/var/named/data/cache_dump.db";
+	pid-file 	"${PREFIX}/var/named/named.pid";
+        statistics-file "${PREFIX}/var/named/data/named_stats.txt";
+        memstatistics-file "${PREFIX}/var/named/data/named_mem_stats.txt";
+	allow-query     { any; };
+	recursion yes;
+	${NAMED_TKEY_OPTION}
+        max-cache-ttl 10;
+        max-ncache-ttl 10;
+
+	forward only;
+	forwarders {
+		  ${DNSSERVER};
+	};
+
+};
+
+key "rndc-key" {
+	algorithm hmac-md5;
+	secret "lA/cTrno03mt5Ju17ybEYw==";
+};
+
+controls {
+	inet ${INTERFACE_IP} port 953
+	allow { any; } keys { "rndc-key"; };
+};
+
+${NAMED_INCLUDE}
+''')
+
+        # add forwarding for the windows domains
+        domains = self.get_domains()
+        for d in domains:
+            self.write_file('etc/named.conf',
+                         '''
+zone "%s" IN {
+      type forward;
+      forward only;
+      forwarders {
+         %s;
+      };
+};
+''' % (d, domains[d]),
+                     mode='a')
+
+
+        self.write_file("etc/rndc.conf", '''
+# Start of rndc.conf
+key "rndc-key" {
+	algorithm hmac-md5;
+	secret "lA/cTrno03mt5Ju17ybEYw==";
+};
+
+options {
+	default-key "rndc-key";
+	default-server  ${INTERFACE_IP};
+	default-port 953;
+};
+''')
+
+
+    def stop_bind(self):
+        '''Stop our private BIND from listening and operating'''
+        self.rndc_cmd("stop", checkfail=False)
+        self.port_wait("${INTERFACE_IP}", 53, wait_for_fail=True)
+
+        self.run_cmd("rm -rf var/named")
+
+
+    def start_bind(self):
+        '''restart the test environment version of bind'''
+        self.info("Restarting bind9")
+        self.chdir('${PREFIX}')
+
+        self.set_nameserver(self.getvar('INTERFACE_IP'))
+
+        self.run_cmd("mkdir -p var/named/data")
+        self.run_cmd("chown -R ${BIND_USER} var/named")
+
+        self.bind_child = self.run_child("${BIND9} -u ${BIND_USER} -n 1 -c ${PREFIX}/etc/named.conf -g")
+
+        self.port_wait("${INTERFACE_IP}", 53)
+        self.rndc_cmd("flush")
+
+    def restart_bind(self, kerberos_support=False, include=None):
+        self.configure_bind(keberos_support=kerberos_support, include=include)
+        self.stop_bind()
+        self.start_bind()
+
+    def restore_resolv_conf(self):
+        '''restore the /etc/resolv.conf after testing is complete'''
+        if getattr(self, 'resolv_conf_backup', False):
+            self.info("restoring /etc/resolv.conf")
+            self.run_cmd("mv -f %s /etc/resolv.conf" % self.resolv_conf_backup)
+
+
     def vm_poweroff(self, vmname, checkfail=True):
         '''power off a VM'''
         self.setvar('VMNAME', vmname)
@@ -565,6 +752,58 @@ class wintest():
                 ret.append(self.vars[v])
         return ret
 
+
+    def run_dcpromo_as_first_dc(self, vm, func_level=None):
+        self.setwinvars(vm)
+        self.info("Configuring a windows VM ${WIN_VM} at the first DC in the domain using dcpromo")
+        child = self.open_telnet("${WIN_HOSTNAME}", "administrator", "${WIN_PASS}", set_time=True)
+        if self.get_is_dc(child):
+            return
+
+        if func_level == '2008r2':
+            self.setvar("FUNCTION_LEVEL_INT", str(4))
+        elif func_level == '2003':
+            self.setvar("FUNCTION_LEVEL_INT", str(1))
+        else:
+            self.setvar("FUNCTION_LEVEL_INT", str(0))
+
+        child = self.open_telnet("${WIN_HOSTNAME}", "administrator", "${WIN_PASS}", set_ip=True, set_noexpire=True)
+
+        """This server must therefore not yet be a directory server, so we must promote it"""
+        child.sendline("copy /Y con answers.txt")
+        child.sendline('''
+[DCInstall]
+; New forest promotion
+ReplicaOrNewDomain=Domain
+NewDomain=Forest
+NewDomainDNSName=${WIN_REALM}
+ForestLevel=${FUNCTION_LEVEL_INT}
+DomainNetbiosName=${WIN_DOMAIN}
+DomainLevel=${FUNCTION_LEVEL_INT}
+InstallDNS=Yes
+ConfirmGc=Yes
+CreateDNSDelegation=No
+DatabasePath="C:\Windows\NTDS"
+LogPath="C:\Windows\NTDS"
+SYSVOLPath="C:\Windows\SYSVOL"
+; Set SafeModeAdminPassword to the correct value prior to using the unattend file
+SafeModeAdminPassword=${WIN_PASS}
+; Run-time flags (optional)
+RebootOnCompletion=No
+
+''')
+        child.expect("copied.")
+        child.expect("C:")
+        child.expect("C:")
+        child.sendline("dcpromo /answer:answers.txt")
+        i = child.expect(["You must restart this computer", "failed", "Active Directory Domain Services was not installed", "C:"], timeout=240)
+        if i == 1 or i == 2:
+            raise Exception("dcpromo failed")
+        child.sendline("shutdown -r -t 0")
+        self.port_wait("${WIN_IP}", 139, wait_for_fail=True)
+        self.port_wait("${WIN_IP}", 139)
+
+
     def setup(self, testname, subdir):
         '''setup for main tests, parsing command line'''
         self.parser.add_option("--conf", type='string', default='', help='config file')