summaryrefslogtreecommitdiff
path: root/wintest/wintest.py
blob: b8e6ea2dd19d69aa69e04402f86ecf1af52c0262 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
#!/usr/bin/env python

'''automated testing library for testing Samba against windows'''

import pexpect, subprocess
import sys, os, time, re

class wintest():
    '''testing of Samba against windows VMs'''

    def __init__(self):
        self.vars = {}
        self.list_mode = False
        self.vms = None
        os.putenv('PYTHONUNBUFFERED', '1')

    def setvar(self, varname, value):
        '''set a substitution variable'''
        self.vars[varname] = value

    def getvar(self, varname):
        '''return a substitution variable'''
        if not varname in self.vars:
            return None
        return self.vars[varname]

    def setwinvars(self, vm, prefix='WIN'):
        '''setup WIN_XX vars based on a vm name'''
        for v in ['VM', 'HOSTNAME', 'USER', 'PASS', 'SNAPSHOT', 'REALM', 'DOMAIN', 'IP']:
            vname = '%s_%s' % (vm, v)
            if vname in self.vars:
                self.setvar("%s_%s" % (prefix,v), self.substitute("${%s}" % vname))
            else:
                self.vars.pop("%s_%s" % (prefix,v), None)

        if self.getvar("WIN_REALM"):
            self.setvar("WIN_REALM", self.getvar("WIN_REALM").upper())
            self.setvar("WIN_LCREALM", self.getvar("WIN_REALM").lower())
            dnsdomain = self.getvar("WIN_REALM")
            self.setvar("WIN_BASEDN", "DC=" + dnsdomain.replace(".", ",DC="))

    def info(self, msg):
        '''print some information'''
        if not self.list_mode:
            print(self.substitute(msg))

    def load_config(self, fname):
        '''load the config file'''
        f = open(fname)
        for line in f:
            line = line.strip()
            if len(line) == 0 or line[0] == '#':
                continue
            colon = line.find(':')
            if colon == -1:
                raise RuntimeError("Invalid config line '%s'" % line)
            varname = line[0:colon].strip()
            value   = line[colon+1:].strip()
            self.setvar(varname, value)

    def list_steps_mode(self):
        '''put wintest in step listing mode'''
        self.list_mode = True

    def set_skip(self, skiplist):
        '''set a list of tests to skip'''
        self.skiplist = skiplist.split(',')

    def set_vms(self, vms):
        '''set a list of VMs to test'''
        if vms is not None:
            self.vms = vms.split(',')

    def skip(self, step):
        '''return True if we should skip a step'''
        if self.list_mode:
            print("\t%s" % step)
            return True
        return step in self.skiplist

    def substitute(self, text):
        """Substitute strings of the form ${NAME} in text, replacing
        with substitutions from vars.
        """
        if isinstance(text, list):
            ret = text[:]
            for i in range(len(ret)):
                ret[i] = self.substitute(ret[i])
            return ret

        """We may have objects such as pexpect.EOF that are not strings"""
        if not isinstance(text, str):
            return text
        while True:
            var_start = text.find("${")
            if var_start == -1:
                return text
            var_end = text.find("}", var_start)
            if var_end == -1:
                return text
            var_name = text[var_start+2:var_end]
            if not var_name in self.vars:
                raise RuntimeError("Unknown substitution variable ${%s}" % var_name)
            text = text.replace("${%s}" % var_name, self.vars[var_name])
        return text

    def have_var(self, varname):
        '''see if a variable has been set'''
        return varname in self.vars

    def have_vm(self, vmname):
        '''see if a VM should be used'''
        if not self.have_var(vmname + '_VM'):
            return False
        if self.vms is None:
            return True
        return vmname in self.vms

    def putenv(self, key, value):
        '''putenv with substitution'''
        os.putenv(key, self.substitute(value))

    def chdir(self, dir):
        '''chdir with substitution'''
        os.chdir(self.substitute(dir))

    def del_files(self, dirs):
        '''delete all files in the given directory'''
        for d in dirs:
            self.run_cmd("find %s -type f | xargs rm -f" % d)

    def write_file(self, filename, text, mode='w'):
        '''write to a file'''
        f = open(self.substitute(filename), mode=mode)
        f.write(self.substitute(text))
        f.close()

    def run_cmd(self, cmd, dir=".", show=None, output=False, checkfail=True):
        '''run a command'''
        cmd = self.substitute(cmd)
        if isinstance(cmd, list):
            self.info('$ ' + " ".join(cmd))
        else:
            self.info('$ ' + cmd)
        if output:
            return subprocess.Popen([cmd], shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, cwd=dir).communicate()[0]
        if isinstance(cmd, list):
            shell=False
        else:
            shell=True
        if checkfail:
            return subprocess.check_call(cmd, shell=shell, cwd=dir)
        else:
            return subprocess.call(cmd, shell=shell, cwd=dir)


    def run_child(self, cmd, dir="."):
        '''create a child and return the Popen handle to it'''
        cwd = os.getcwd()
        cmd = self.substitute(cmd)
        if isinstance(cmd, list):
            self.info('$ ' + " ".join(cmd))
        else:
            self.info('$ ' + cmd)
        if isinstance(cmd, list):
            shell=False
        else:
            shell=True
        os.chdir(dir)
        ret = subprocess.Popen(cmd, shell=shell, stderr=subprocess.STDOUT)
        os.chdir(cwd)
        return ret

    def cmd_output(self, cmd):
        '''return output from and command'''
        cmd = self.substitute(cmd)
        return self.run_cmd(cmd, output=True)

    def cmd_contains(self, cmd, contains, nomatch=False, ordered=False, regex=False,
                     casefold=True):
        '''check that command output contains the listed strings'''

        if isinstance(contains, str):
            contains = [contains]

        out = self.cmd_output(cmd)
        self.info(out)
        for c in self.substitute(contains):
            if regex:
                if casefold:
                    c = c.upper()
                    out = out.upper()
                m = re.search(c, out)
                if m is None:
                    start = -1
                    end = -1
                else:
                    start = m.start()
                    end = m.end()
            elif casefold:
                start = out.upper().find(c.upper())
                end = start + len(c)
            else:
                start = out.find(c)
                end = start + len(c)
            if nomatch:
                if start != -1:
                    raise RuntimeError("Expected to not see %s in %s" % (c, cmd))
            else:
                if start == -1:
                    raise RuntimeError("Expected to see %s in %s" % (c, cmd))
            if ordered and start != -1:
                out = out[end:]

    def retry_cmd(self, cmd, contains, retries=30, delay=2, wait_for_fail=False,
                  ordered=False, regex=False, casefold=True):
        '''retry a command a number of times'''
        while retries > 0:
            try:
                self.cmd_contains(cmd, contains, nomatch=wait_for_fail,
                                  ordered=ordered, regex=regex, casefold=casefold)
                return
            except:
                time.sleep(delay)
                retries -= 1
                self.info("retrying (retries=%u delay=%u)" % (retries, delay))
        raise RuntimeError("Failed to find %s" % contains)

    def pexpect_spawn(self, cmd, timeout=60, crlf=True, casefold=True):
        '''wrapper around pexpect spawn'''
        cmd = self.substitute(cmd)
        self.info("$ " + cmd)
        ret = pexpect.spawn(cmd, logfile=sys.stdout, timeout=timeout)

        def sendline_sub(line):
            line = self.substitute(line)
            if crlf:
                line = line.replace('\n', '\r\n') + '\r'
            return ret.old_sendline(line)

        def expect_sub(line, timeout=ret.timeout, casefold=casefold):
            line = self.substitute(line)
            if casefold:
                if isinstance(line, list):
                    for i in range(len(line)):
                        if isinstance(line[i], str):
                            line[i] = '(?i)' + line[i]
                elif isinstance(line, str):
                    line = '(?i)' + line
            return ret.old_expect(line, timeout=timeout)

        ret.old_sendline = ret.sendline
        ret.sendline = sendline_sub
        ret.old_expect = ret.expect
        ret.expect = expect_sub

        return ret

    def get_nameserver(self):
        '''Get the current nameserver from /etc/resolv.conf'''
        child = self.pexpect_spawn('cat /etc/resolv.conf', crlf=False)
        i = child.expect(['Generated by wintest', 'nameserver'])
        if i == 0:
            child.expect('your original resolv.conf')
            child.expect('nameserver')
        child.expect('\d+.\d+.\d+.\d+')
        return child.after

    def vm_poweroff(self, vmname, checkfail=True):
        '''power off a VM'''
        self.setvar('VMNAME', vmname)
        self.run_cmd("${VM_POWEROFF}", checkfail=checkfail)

    def vm_reset(self, vmname):
        '''reset a VM'''
        self.setvar('VMNAME', vmname)
        self.run_cmd("${VM_RESET}")

    def vm_restore(self, vmname, snapshot):
        '''restore a VM'''
        self.setvar('VMNAME', vmname)
        self.setvar('SNAPSHOT', snapshot)
        self.run_cmd("${VM_RESTORE}")

    def ping_wait(self, hostname):
        '''wait for a hostname to come up on the network'''
        hostname = self.substitute(hostname)
        loops=10
        while loops > 0:
            try:
                self.run_cmd("ping -c 1 -w 10 %s" % hostname)
                break
            except:
                loops = loops - 1
        if loops == 0:
            raise RuntimeError("Failed to ping %s" % hostname)
        self.info("Host %s is up" % hostname)

    def port_wait(self, hostname, port, retries=200, delay=3, wait_for_fail=False):
        '''wait for a host to come up on the network'''
        self.retry_cmd("nc -v -z -w 1 %s %u" % (hostname, port), ['succeeded'],
                       retries=retries, delay=delay, wait_for_fail=wait_for_fail)

    def run_net_time(self, child):
        '''run net time on windows'''
        child.sendline("net time \\\\${HOSTNAME} /set")
        child.expect("Do you want to set the local computer")
        child.sendline("Y")
        child.expect("The command completed successfully")

    def run_date_time(self, child, time_tuple=None):
        '''run date and time on windows'''
        if time_tuple is None:
            time_tuple = time.localtime()
        child.sendline("date")
        child.expect("Enter the new date:")
        i = child.expect(["dd-mm-yy", "mm-dd-yy"])
        if i == 0:
            child.sendline(time.strftime("%d-%m-%y", time_tuple))
        else:
            child.sendline(time.strftime("%m-%d-%y", time_tuple))
        child.expect("C:")
        child.sendline("time")
        child.expect("Enter the new time:")
        child.sendline(time.strftime("%H:%M:%S", time_tuple))
        child.expect("C:")

    def get_ipconfig(self, child):
        '''get the IP configuration of the child'''
        child.sendline("ipconfig /all")
        child.expect('Ethernet adapter ')
        child.expect("[\w\s]+")
        self.setvar("WIN_NIC", child.after)
        child.expect(['IPv4 Address', 'IP Address'])
        child.expect('\d+.\d+.\d+.\d+')
        self.setvar('WIN_IPV4_ADDRESS', child.after)
        child.expect('Subnet Mask')
        child.expect('\d+.\d+.\d+.\d+')
        self.setvar('WIN_SUBNET_MASK', child.after)
        child.expect('Default Gateway')
        child.expect('\d+.\d+.\d+.\d+')
        self.setvar('WIN_DEFAULT_GATEWAY', child.after)
        child.expect("C:")

    def get_is_dc(self, child):
        '''check if a windows machine is a domain controller'''
        child.sendline("dcdiag")
        i = child.expect(["is not a Directory Server",
                          "is not recognized as an internal or external command",
                          "Home Server = ",
                          "passed test Replications"])
        if i == 0:
            return False
        if i == 1 or i == 3:
            child.expect("C:")
            child.sendline("net config Workstation")
            child.expect("Workstation domain")
            child.expect('[\S]+')
            domain = child.after
            i = child.expect(["Workstation Domain DNS Name", "Logon domain"])
            '''If we get the Logon domain first, we are not in an AD domain'''
            if i == 1:
                return False
            if domain.upper() == self.getvar("WIN_DOMAIN").upper():
                return True

        child.expect('[\S]+')
        hostname = child.after
        if hostname.upper() == self.getvar("WIN_HOSTNAME").upper():
            return True

    def run_tlntadmn(self, child):
        '''remove the annoying telnet restrictions'''
        child.sendline('tlntadmn config maxconn=1024')
        child.expect("The settings were successfully updated")
        child.expect("C:")

    def disable_firewall(self, child):
        '''remove the annoying firewall'''
        child.sendline('netsh advfirewall set allprofiles state off')
        i = child.expect(["Ok", "The following command was not found: advfirewall set allprofiles state off"])
        child.expect("C:")
        if i == 1:
            child.sendline('netsh firewall set opmode mode = DISABLE profile = ALL')
            i = child.expect(["Ok", "The following command was not found"])
            if i != 0:
                self.info("Firewall disable failed - ignoring")
            child.expect("C:")
 
    def set_dns(self, child):
        child.sendline('netsh interface ip set dns "${WIN_NIC}" static ${INTERFACE_IP} primary')
        i = child.expect(['C:', pexpect.EOF, pexpect.TIMEOUT], timeout=5)
        if i > 0:
            return True
        else:
            return False

    def set_ip(self, child):
        """fix the IP address to the same value it had when we
        connected, but don't use DHCP, and force the DNS server to our
        DNS server.  This allows DNS updates to run"""
        self.get_ipconfig(child)
        if self.getvar("WIN_IPV4_ADDRESS") != self.getvar("WIN_IP"):
            raise RuntimeError("ipconfig address %s != nmblookup address %s" % (self.getvar("WIN_IPV4_ADDRESS"),
                                                                                self.getvar("WIN_IP")))
        child.sendline('netsh')
        child.expect('netsh>')
        child.sendline('offline')
        child.expect('netsh>')
        child.sendline('routing ip add persistentroute dest=0.0.0.0 mask=0.0.0.0 name="${WIN_NIC}" nhop=${WIN_DEFAULT_GATEWAY}')
        child.expect('netsh>')
        child.sendline('interface ip set address "${WIN_NIC}" static ${WIN_IPV4_ADDRESS} ${WIN_SUBNET_MASK} ${WIN_DEFAULT_GATEWAY} 1 store=persistent')
        i = child.expect(['The syntax supplied for this command is not valid. Check help for the correct syntax', 'netsh>', pexpect.EOF, pexpect.TIMEOUT], timeout=5)
        if i == 0:
            child.sendline('interface ip set address "${WIN_NIC}" static ${WIN_IPV4_ADDRESS} ${WIN_SUBNET_MASK} ${WIN_DEFAULT_GATEWAY} 1')
            child.expect('netsh>')
        child.sendline('commit')
        child.sendline('online')
        child.sendline('exit')

        child.expect([pexpect.EOF, pexpect.TIMEOUT], timeout=5)
        return True


    def resolve_ip(self, hostname, retries=60, delay=5):
        '''resolve an IP given a hostname, assuming NBT'''
        while retries > 0:
            child = self.pexpect_spawn("bin/nmblookup %s" % hostname)
            i = child.expect(['\d+.\d+.\d+.\d+', "Lookup failed"])
            if i == 0:
                return child.after
            retries -= 1
            time.sleep(delay)
            self.info("retrying (retries=%u delay=%u)" % (retries, delay))
        raise RuntimeError("Failed to resolve IP of %s" % hostname)


    def open_telnet(self, hostname, username, password, retries=60, delay=5, set_time=False, set_ip=False,
                    disable_firewall=True, run_tlntadmn=True):
        '''open a telnet connection to a windows server, return the pexpect child'''
        set_route = False
        set_dns = False
        if self.getvar('WIN_IP'):
            ip = self.getvar('WIN_IP')
        else:
            ip = self.resolve_ip(hostname)
            self.setvar('WIN_IP', ip)
        while retries > 0:
            child = self.pexpect_spawn("telnet " + ip + " -l '" + username + "'")
            i = child.expect(["Welcome to Microsoft Telnet Service",
                              "Denying new connections due to the limit on number of connections",
                              "No more connections are allowed to telnet server",
                              "Unable to connect to remote host",
                              "No route to host",
                              "Connection refused",
                              pexpect.EOF])
            if i != 0:
                child.close()
                time.sleep(delay)
                retries -= 1
                self.info("retrying (retries=%u delay=%u)" % (retries, delay))
                continue
            child.expect("password:")
            child.sendline(password)
            i = child.expect(["C:",
                              "Denying new connections due to the limit on number of connections",
                              "No more connections are allowed to telnet server",
                              "Unable to connect to remote host",
                              "No route to host",
                              "Connection refused",
                              pexpect.EOF])
            if i != 0:
                child.close()
                time.sleep(delay)
                retries -= 1
                self.info("retrying (retries=%u delay=%u)" % (retries, delay))
                continue
            if set_dns:
                set_dns = False
                if self.set_dns(child):
                    continue;
            if set_route:
                child.sendline('route add 0.0.0.0 mask 0.0.0.0 ${WIN_DEFAULT_GATEWAY}')
                child.expect("C:")
                set_route = False
            if set_time:
                self.run_date_time(child, None)
                set_time = False
            if run_tlntadmn:
                self.run_tlntadmn(child)
                run_tlntadmn = False
            if disable_firewall:
                self.disable_firewall(child)
                disable_firewall = False
            if set_ip:
                set_ip = False
                if self.set_ip(child):
                    set_route = True
                    set_dns = True
                continue
            return child
        raise RuntimeError("Failed to connect with telnet")

    def kinit(self, username, password):
        '''use kinit to setup a credentials cache'''
        self.run_cmd("kdestroy")
        self.putenv('KRB5CCNAME', "${PREFIX}/ccache.test")
        username = self.substitute(username)
        s = username.split('@')
        if len(s) > 0:
            s[1] = s[1].upper()
        username = '@'.join(s)
        child = self.pexpect_spawn('kinit ' + username)
        child.expect("Password")
        child.sendline(password)
        child.expect(pexpect.EOF)
        child.close()
        if child.exitstatus != 0:
            raise RuntimeError("kinit failed with status %d" % child.exitstatus)

    def get_domains(self):
        '''return a dictionary of DNS domains and IPs for named.conf'''
        ret = {}
        for v in self.vars:
            if v[-6:] == "_REALM":
                base = v[:-6]
                if base + '_IP' in self.vars:
                    ret[self.vars[base + '_REALM']] = self.vars[base + '_IP']
        return ret

    def wait_reboot(self, retries=3):
        '''wait for a VM to reboot'''

        # first wait for it to shutdown
        self.port_wait("${WIN_IP}", 139, wait_for_fail=True, delay=6)

        # now wait for it to come back. If it fails to come back
        # then try resetting it
        while retries > 0:
            try:
                self.port_wait("${WIN_IP}", 139)
                return
            except:
                retries -= 1
                self.vm_reset("${WIN_VM}")
                self.info("retrying reboot (retries=%u)" % retries)
        raise RuntimeError(self.substitute("VM ${WIN_VM} failed to reboot"))

    def get_vms(self):
        '''return a dictionary of all the configured VM names'''
        ret = []
        for v in self.vars:
            if v[-3:] == "_VM":
                ret.append(self.vars[v])
        return ret