-
Notifications
You must be signed in to change notification settings - Fork 345
/
parse-kickstart
executable file
·583 lines (513 loc) · 20.9 KB
/
parse-kickstart
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
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
#!/usr/bin/python
#vim: set fileencoding=utf8
# parse-kickstart - read a kickstart file and emit equivalent dracut boot args
#
# Designed to run inside the dracut initramfs environment.
# Requires python 2.7 or later.
#
#
# Copyright © 2012-2014 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Authors:
# Will Woods <wwoods@redhat.com>
import sys, os
import logging
import shutil
import uuid
import glob
from pykickstart.parser import KickstartParser, preprocessKickstart
from pykickstart.sections import NullSection
from pykickstart.version import returnClassForVersion, RHEL7
from pykickstart.errors import KickstartError
# pylint: disable=wildcard-import,unused-wildcard-import
from pykickstart.constants import *
from pykickstart import commands
from collections import OrderedDict
# Default logging: none
log = logging.getLogger('parse-kickstart').addHandler(logging.NullHandler())
# Helper function for reading simple files in /sys
def readsysfile(f):
'''Return the contents of f, or "" if missing.'''
try:
val = open(f).readline().strip()
except IOError:
val = ""
return val
def read_cmdline(f):
'''Returns an OrderedDict containing key-value pairs from a file with
boot arguments (e.g. /proc/cmdline).'''
args = OrderedDict()
try:
lines = open(f).readlines()
except IOError:
lines = []
# pylint: disable=redefined-outer-name
for line in lines:
for arg in line.split():
k,_,v = arg.partition("=")
args[k] = v
return args
def first_device_with_link():
for dev_dir in sorted(glob.glob("/sys/class/net/*")):
##define ARPHRD_ETHER 1 /* Ethernet 10Mbps */
##define ARPHRD_INFINIBAND 32 /* InfiniBand */
with open(dev_dir+"/type") as f:
if f.read().strip() not in ("1", "32"):
continue
with open(dev_dir+"/carrier") as f:
if f.read().strip() == "1":
return os.path.basename(dev_dir)
return ""
def setting_only_hostname(net, args):
return net.hostname and (len(args) == 2 or (len(args) == 3 and "--hostname" in args))
proc_cmdline = read_cmdline("/proc/cmdline")
class DracutArgsMixin(object):
"""A mixin class to make a Command generate dracut args."""
def dracut_args(self, args, lineno, obj):
raise NotImplementedError
# Here are the kickstart commands we care about:
class Cdrom(commands.cdrom.FC3_Cdrom, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
return "inst.repo=cdrom"
class HardDrive(commands.harddrive.FC3_HardDrive, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
if self.biospart:
return "inst.repo=bd:%s:%s" % (self.partition, self.dir)
else:
return "inst.repo=hd:%s:%s" % (self.partition, self.dir)
class NFS(commands.nfs.FC6_NFS, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
if self.opts:
method = "nfs:%s:%s:%s" % (self.opts, self.server, self.dir)
else:
method="nfs:%s:%s" % (self.server, self.dir)
# Spaces on the cmdline need to be '\ '
method = method.replace(" ", "\\ ")
return "inst.repo=%s" % method
class URL(commands.url.F18_Url, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
# Spaces in the url need to be %20
if self.url:
method = self.url.replace(" ", "%20")
else:
method = None
args = ["inst.repo=%s" % method]
if self.noverifyssl:
args.append("rd.noverifyssl")
if self.proxy:
args.append("proxy=%s" % self.proxy)
return "\n".join(args)
class Updates(commands.updates.F7_Updates, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
if self.url == "floppy":
return "live.updates=/dev/fd0"
elif self.url:
return "live.updates=%s" % self.url
class MediaCheck(commands.mediacheck.FC4_MediaCheck, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
if self.mediacheck:
return "rd.live.check"
class DriverDisk(commands.driverdisk.F14_DriverDisk, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
dd_args = []
for dd in self.driverdiskList:
if dd.partition:
dd_args.append("inst.dd=hd:%s" % dd.partition)
elif dd.source:
dd_args.append("inst.dd=%s" % dd.source)
elif dd.biospart:
dd_args.append("inst.dd=bd:%s" % dd.biospart)
return "\n".join(dd_args)
class Network(commands.network.RHEL7_Network, DracutArgsMixin):
def dracut_args(self, args, lineno, net):
'''
NOTE: The first 'network' line get special treatment:
* '--activate' is always enabled
* '--device' is optional (defaults to the 'ksdevice=' boot arg)
* the device gets brought online in initramfs
'''
netline = None
# Setting only hostname in kickstart
if not net.device and not self.handler.ksdevice \
and setting_only_hostname(net, args):
return None
# first 'network' line
if len(self.network) == 1:
net.activate = True
if not net.device:
if self.handler.ksdevice:
net.device = self.handler.ksdevice
log.info("Using ksdevice %s for missing --device in first kickstart network command", self.handler.ksdevice)
else:
net.device = "link"
if net.device == "link":
net.device = first_device_with_link()
if not net.device:
log.warn("No device with link found for --device=link")
return
else:
log.info("Using %s as first device with link found", net.device)
# tell dracut to bring this device up
netline = ksnet_to_dracut(args, lineno, net, bootdev=True)
else:
# all subsequent 'network' lines require '--device'
if not net.device or net.device == "link":
log.error("'%s': missing --device", " ".join(args))
return
# write ifcfg so NM will set up the device correctly later
ksnet_to_ifcfg(net)
return netline
class DisplayMode(commands.displaymode.FC3_DisplayMode, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
if self.displayMode == DISPLAY_MODE_CMDLINE:
return "inst.cmdline"
elif self.displayMode == DISPLAY_MODE_TEXT:
return "inst.text"
elif self.displayMode == DISPLAY_MODE_GRAPHICAL:
return "inst.graphical"
class Bootloader(commands.bootloader.RHEL7_Bootloader, DracutArgsMixin):
def dracut_args(self, args, lineno, obj):
if self.extlinux:
return "extlinux"
# FUTURE: keymap, lang... device? selinux?
dracutCmds = {
'cdrom': Cdrom,
'harddrive': HardDrive,
'nfs': NFS,
'url': URL,
'updates': Updates,
'mediacheck': MediaCheck,
'driverdisk': DriverDisk,
'network': Network,
'cmdline': DisplayMode,
'graphical': DisplayMode,
'text': DisplayMode,
'bootloader': Bootloader,
}
handlerclass = returnClassForVersion(RHEL7)
class DracutHandler(handlerclass):
def __init__(self):
handlerclass.__init__(self, commandUpdates=dracutCmds)
self.output = []
self.ksdevice = None
def dispatcher(self, args, lineno):
obj = handlerclass.dispatcher(self, args, lineno)
# and execute any specified dracut_args
cmd = args[0]
# the commands member is implemented by the class returned
# by returnClassForVersion
# pylint: disable=no-member
command = self.commands[cmd]
if hasattr(command, "dracut_args"):
log.debug("kickstart line %u: handling %s", lineno, cmd)
self.output.append(command.dracut_args(args, lineno, obj))
return obj
def init_logger(level=None):
if level is None and 'rd.debug' in proc_cmdline:
level = logging.DEBUG
logfmt = "%(name)s %(levelname)s: %(message)s"
logging.basicConfig(format=logfmt, level=level)
logger = logging.getLogger('parse-kickstart')
return logger
def is_mac(addr):
return addr and len(addr) == 17 and addr.count(":") == 5 # good enough
def find_devname(mac):
for netif in os.listdir("/sys/class/net"):
thismac = readsysfile("/sys/class/net/%s/address" % netif)
if thismac.lower() == mac.lower():
return netif
# We duplicate this in pyanaconda/network.py
def s390_settings(device):
cfg = {
'SUBCHANNELS': '',
'NETTYPE': '',
'OPTIONS': ''
}
subchannels = []
for symlink in sorted(glob.glob("/sys/class/net/%s/device/cdev[0-9]*" % device)):
subchannels.append(os.path.basename(os.readlink(symlink)))
if not subchannels:
return cfg
cfg['SUBCHANNELS'] = ','.join(subchannels)
## cat /etc/ccw.conf
#qeth,0.0.0900,0.0.0901,0.0.0902,layer2=0,portname=FOOBAR,portno=0
#
#SUBCHANNELS="0.0.0900,0.0.0901,0.0.0902"
#NETTYPE="qeth"
#OPTIONS="layer2=1 portname=FOOBAR portno=0"
with open('/etc/ccw.conf') as f:
# pylint: disable=redefined-outer-name
for line in f:
if cfg['SUBCHANNELS'] in line:
items = line.strip().split(',')
cfg['NETTYPE'] = items[0]
cfg['OPTIONS'] = " ".join(i for i in items[1:] if '=' in i)
break
return cfg
def ksnet_to_dracut(args, lineno, net, bootdev=False):
'''Translate the kickstart network data into dracut network data.'''
# pylint: disable=redefined-outer-name
line = []
ip=""
autoconf=""
if is_mac(net.device): # this is a MAC - find the interface name
mac = net.device
net.device = find_devname(mac)
if net.device is None: # iface not active - pick a name for it
net.device = "ksdev0" # we only get called once, so this is OK
line.append("ifname=%s:%s" % (net.device, mac.lower()))
# NOTE: dracut currently only does ipv4 *or* ipv6, so only one ip=arg..
if net.bootProto in (BOOTPROTO_DHCP, BOOTPROTO_BOOTP):
autoconf="dhcp"
elif net.bootProto == BOOTPROTO_IBFT:
autoconf="ibft"
elif net.bootProto == BOOTPROTO_QUERY:
log.error("'%s': --bootproto=query is deprecated", " ".join(args))
elif net.bootProto == BOOTPROTO_STATIC:
req = ("gateway", "netmask", "nameserver", "ip")
missing = ", ".join("--%s" % i for i in req if not hasattr(net, i))
if missing:
log.warn("line %u: network missing %s", lineno, missing)
else:
ip="{0.ip}::{0.gateway}:{0.netmask}:" \
"{0.hostname}:{0.device}:none:{0.mtu}".format(net)
elif net.ipv6 == "auto":
autoconf="auto6"
elif net.ipv6 == "dhcp":
autoconf="dhcp6"
elif net.ipv6:
ip="[{0.ipv6}]::{0.ipv6gateway}:{0.netmask}:" \
"{0.hostname}:{0.device}:none:{0.mtu}".format(net)
if autoconf:
if net.device or net.mtu:
ip="%s:%s:%s" % (net.device, autoconf, net.mtu)
else:
ip=autoconf
if ip:
line.append("ip=%s" % ip)
for ns in net.nameserver.split(","):
if ns:
line.append("nameserver=%s" % ns)
if bootdev:
if net.device:
line.append("bootdev=%s" % net.device)
# touch /tmp/net.ifaces to make sure dracut brings up network
open("/tmp/net.ifaces", "a")
if net.essid or net.wepkey or net.wpakey:
# NOTE: does dracut actually support wireless? (do we care?)
log.error("'%s': dracut doesn't support wireless networks",
" ".join(args))
return " ".join(line)
def add_s390_settings(dev, ifcfg):
s390cfg = s390_settings(dev)
if s390cfg['SUBCHANNELS']:
ifcfg.pop('HWADDR', None)
ifcfg['SUBCHANNELS'] = s390cfg['SUBCHANNELS']
if s390cfg['NETTYPE']:
ifcfg['NETTYPE'] = s390cfg['NETTYPE']
if s390cfg['OPTIONS']:
ifcfg['OPTIONS'] = s390cfg['OPTIONS']
def ksnet_to_ifcfg(net, filename=None):
'''Write an ifcfg file for the given kickstart network config'''
dev = net.device
if is_mac(dev):
dev = find_devname(dev)
if not dev:
return
if (not os.path.isdir("/sys/class/net/%s" % dev)
and not net.bondslaves and not net.teamslaves and not net.bridgeslaves):
log.info("can't find device %s" % dev)
return
ifcfg = dict()
if filename is None:
filename = "/tmp/ifcfg/ifcfg-%s" % dev
if not os.path.isdir("/tmp/ifcfg"):
os.makedirs("/tmp/ifcfg")
ifcfg['DEVICE'] = dev
hwaddr = readsysfile("/sys/class/net/%s/address" % dev)
if "ifname={0}:{1}".format(dev, hwaddr).upper() in open("/proc/cmdline").read().upper():
# rename by initscript's 60-net-rules on target system after switchroot
ifcfg['HWADDR'] = hwaddr
ifcfg['UUID'] = str(uuid.uuid4())
# we set real ONBOOT value in anaconda, here
# we use it to activate devcies by NM on start
ifcfg['ONBOOT'] = "yes" if net.activate else "no"
add_s390_settings(dev, ifcfg)
# dhcp etc.
ifcfg['BOOTPROTO'] = net.bootProto
if net.bootProto == 'static':
ifcfg['IPADDR'] = net.ip
ifcfg['NETMASK'] = net.netmask
ifcfg['GATEWAY'] = net.gateway
if net.bootProto == 'dhcp':
if net.hostname:
ifcfg['DHCP_HOSTNAME'] = net.hostname
# ipv6 settings
if net.noipv6:
ifcfg['IPV6INIT'] = "no"
else:
ifcfg['IPV6INIT'] = "yes"
if net.ipv6 == 'dhcp':
ifcfg['DHCPV6C'] = "yes"
ifcfg['IPV6_AUTOCONF'] = "no"
elif net.ipv6 == 'auto':
ifcfg['IPV6_AUTOCONF'] = "yes" # NOTE: redundant (this is the default)
elif ':' in net.ipv6:
ifcfg['IPV6ADDR'] = net.ipv6
ifcfg['IPV6_AUTOCONF'] = "no"
if net.ipv6gateway:
ifcfg['IPV6_DEFAULTGW'] = net.ipv6gateway
# misc stuff
if net.mtu:
ifcfg['MTU'] = net.mtu
if net.nameserver:
for i, ip in enumerate(net.nameserver.split(",")):
ifcfg["DNS%d" % (i+1)] = ip
if net.nodefroute:
ifcfg['DEFROUTE'] = "no"
# FUTURE: dhcpclass, ethtool, essid/wepkey/wpakay, etc.
if net.bootProto == 'dhcp':
srcpath = "/tmp/dhclient.%s.lease" % dev
dstdir = "/tmp/ifcfg-leases"
dstpath = "%s/dhclient-%s-%s.lease" % (dstdir, ifcfg['UUID'], dev)
if os.path.exists(srcpath):
if not os.path.isdir(dstdir):
os.makedirs(dstdir)
shutil.copyfile(srcpath, dstpath)
if net.bondslaves:
ifcfg.pop('HWADDR', None)
ifcfg['TYPE'] = "Bond"
ifcfg['BONDING_MASTER'] = "yes"
ifcfg['NAME'] = "Bond connection %s" % dev
if ';' in net.bondopts:
sep = ";"
else:
sep = ","
ifcfg['BONDING_OPTS'] = '"' + " ".join(net.bondopts.split(sep)) + '"'
for i, slave in enumerate(net.bondslaves.split(","), 1):
slave_ifcfg = {
'TYPE' : "Ethernet",
'NAME' : "%s slave %s" % (dev, i),
'UUID' : str(uuid.uuid4()),
'ONBOOT' : "yes",
'MASTER' : ifcfg['UUID'],
'HWADDR' : readsysfile("/sys/class/net/%s/address" % slave),
}
add_s390_settings(slave, slave_ifcfg)
slave_filename = "/tmp/ifcfg/ifcfg-%s" % "_".join(slave_ifcfg['NAME'].split(" "))
log.info("writing ifcfg %s for slave %s of bond %s" % (slave_filename, slave, dev))
write_ifcfg(slave_filename, slave_ifcfg)
if net.teamslaves:
ifcfg.pop('HWADDR', None)
ifcfg['TYPE'] = "Team"
ifcfg['NAME'] = "Team connection %s" % dev
ifcfg['TEAM_CONFIG'] = "'" + net.teamconfig + "'"
for i, (slave, cfg) in enumerate(net.teamslaves):
slave_ifcfg = {
'DEVICE': slave,
'DEVICETYPE' : "TeamPort",
'NAME' : "%s slave %s" % (dev, i),
'UUID' : str(uuid.uuid4()),
'ONBOOT' : "yes",
'TEAM_MASTER' : dev,
# 'HWADDR' : readsysfile("/sys/class/net/%s/address" % slave),
}
if cfg:
slave_ifcfg['TEAM_PORT_CONFIG'] = "'" + cfg + "'"
slave_filename = "/tmp/ifcfg/ifcfg-%s" % "_".join(slave_ifcfg['NAME'].split(" "))
log.info("writing ifcfg %s for slave %s of team %s" % (slave_filename, slave, dev))
write_ifcfg(slave_filename, slave_ifcfg)
if net.bridgeslaves:
ifcfg.pop('HWADDR', None)
ifcfg['TYPE'] = "Bridge"
ifcfg['NAME'] = "Bridge connection %s" % dev
options = {}
for opt in net.bridgeopts.split(","):
key, _, value = opt.partition("=")
if not value:
log.error("Invalid bridge option %s", opt)
continue
key = key.replace('-', '_')
options[key] = value
stp = options.pop("stp", None)
if stp:
ifcfg['STP'] = stp
delay = options.pop("forward_delay", None)
if delay:
ifcfg['DELAY'] = delay
if options:
keyvalues = ["%s=%s" % (key, options[key]) for key in options]
ifcfg['BRIDGING_OPTS'] = '"' + " ".join(keyvalues) + '"'
for i, slave in enumerate(net.bridgeslaves.split(","), 1):
slave_ifcfg = {
'TYPE' : "Ethernet",
'NAME' : "%s slave %s" % (dev, i),
'UUID' : str(uuid.uuid4()),
'ONBOOT' : "yes",
'BRIDGE' : dev,
'HWADDR' : readsysfile("/sys/class/net/%s/address" % slave),
}
slave_filename = "/tmp/ifcfg/ifcfg-%s" % "_".join(slave_ifcfg['NAME'].split(" "))
log.info("writing ifcfg %s for slave %s of bridge %s", slave_filename, slave, dev)
write_ifcfg(slave_filename, slave_ifcfg)
if net.vlanid:
interface_name = net.interfacename or "%s.%s" % (dev, net.vlanid)
ifcfg.pop('HWADDR', None)
ifcfg['TYPE'] = "Vlan"
ifcfg['VLAN'] = "yes"
ifcfg['VLAN_ID'] = net.vlanid
ifcfg['NAME'] = "VLAN connection %s" % interface_name
ifcfg['DEVICE'] = interface_name
ifcfg['PHYSDEV'] = dev
filename = "/tmp/ifcfg/ifcfg-%s" % interface_name
log.info("writing ifcfg %s for %s" % (filename, dev))
if write_ifcfg(filename, ifcfg):
return filename
def write_ifcfg(filename, ifcfg):
try:
with open(filename, "w") as f:
f.write('# Generated by parse-kickstart\n')
for k,v in ifcfg.items():
f.write("%s=%s\n" % (k,v))
except IOError as e:
log.error("can't write %s: %s" % (filename, e))
return False
return True
def process_kickstart(ksfile):
handler = DracutHandler()
try:
handler.ksdevice = proc_cmdline['ksdevice']
except KeyError:
log.debug("ksdevice argument is not available")
parser = KickstartParser(handler, missingIncludeIsFatal=False, errorsAreFatal=False)
parser.registerSection(NullSection(handler, sectionOpen="%addon"))
log.info("processing kickstart file %s", ksfile)
processed_file = preprocessKickstart(ksfile)
try:
parser.readKickstart(processed_file)
except KickstartError as e:
log.error(str(e))
with open("/tmp/ks.info", "a") as f:
f.write('parsed_kickstart="%s"\n' % processed_file)
log.info("finished parsing kickstart")
return processed_file, handler.output
if __name__ == '__main__':
log = init_logger()
for path in sys.argv[1:]:
outfile, output = process_kickstart(path)
for line in filter(None, output):
print(line)