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Patrick Williamsd8c66bc2016-06-20 12:57:21 -05001#
2# Copyright (c) 2013-2016 Intel Corporation.
Patrick Williamsd8c66bc2016-06-20 12:57:21 -05003#
Brad Bishopc342db32019-05-15 21:57:59 -04004# SPDX-License-Identifier: GPL-2.0-only
Patrick Williamsd8c66bc2016-06-20 12:57:21 -05005#
6# DESCRIPTION
7# This module provides the OpenEmbedded partition object definitions.
8#
9# AUTHORS
10# Tom Zanussi <tom.zanussi (at] linux.intel.com>
11# Ed Bartosh <ed.bartosh> (at] linux.intel.com>
12
Brad Bishop6e60e8b2018-02-01 10:27:11 -050013import logging
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050014import os
Brad Bishop316dfdd2018-06-25 12:45:53 -040015import uuid
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050016
Brad Bishop6e60e8b2018-02-01 10:27:11 -050017from wic import WicError
Brad Bishopd7bf8c12018-02-25 22:55:05 -050018from wic.misc import exec_cmd, exec_native_cmd, get_bitbake_var
Brad Bishop6e60e8b2018-02-01 10:27:11 -050019from wic.pluginbase import PluginMgr
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050020
Brad Bishop6e60e8b2018-02-01 10:27:11 -050021logger = logging.getLogger('wic')
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050022
Patrick Williamsc0f7c042017-02-23 20:41:17 -060023class Partition():
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050024
25 def __init__(self, args, lineno):
26 self.args = args
27 self.active = args.active
28 self.align = args.align
29 self.disk = args.disk
Brad Bishop6e60e8b2018-02-01 10:27:11 -050030 self.device = None
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050031 self.extra_space = args.extra_space
Brad Bishop6e60e8b2018-02-01 10:27:11 -050032 self.exclude_path = args.exclude_path
Andrew Geissler82c905d2020-04-13 13:39:40 -050033 self.include_path = args.include_path
34 self.change_directory = args.change_directory
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050035 self.fsopts = args.fsopts
36 self.fstype = args.fstype
37 self.label = args.label
Brad Bishop1a4b7ee2018-12-16 17:11:34 -080038 self.use_label = args.use_label
Brad Bishopd7bf8c12018-02-25 22:55:05 -050039 self.mkfs_extraopts = args.mkfs_extraopts
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050040 self.mountpoint = args.mountpoint
41 self.no_table = args.no_table
Brad Bishop6e60e8b2018-02-01 10:27:11 -050042 self.num = None
Andrew Geissler4ed12e12020-06-05 18:00:41 -050043 self.offset = args.offset
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050044 self.overhead_factor = args.overhead_factor
Brad Bishopd7bf8c12018-02-25 22:55:05 -050045 self.part_name = args.part_name
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050046 self.part_type = args.part_type
47 self.rootfs_dir = args.rootfs_dir
48 self.size = args.size
Brad Bishop6e60e8b2018-02-01 10:27:11 -050049 self.fixed_size = args.fixed_size
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050050 self.source = args.source
51 self.sourceparams = args.sourceparams
Patrick Williamsc0f7c042017-02-23 20:41:17 -060052 self.system_id = args.system_id
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050053 self.use_uuid = args.use_uuid
54 self.uuid = args.uuid
Brad Bishop316dfdd2018-06-25 12:45:53 -040055 self.fsuuid = args.fsuuid
Brad Bishop08902b02019-08-20 09:16:51 -040056 self.type = args.type
Andrew Geisslerd1e89492021-02-12 15:35:20 -060057 self.updated_fstab_path = None
58 self.has_fstab = False
59 self.update_fstab_in_rootfs = False
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050060
61 self.lineno = lineno
62 self.source_file = ""
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050063
64 def get_extra_block_count(self, current_blocks):
65 """
66 The --size param is reflected in self.size (in kB), and we already
67 have current_blocks (1k) blocks, calculate and return the
68 number of (1k) blocks we need to add to get to --size, 0 if
69 we're already there or beyond.
70 """
Brad Bishop6e60e8b2018-02-01 10:27:11 -050071 logger.debug("Requested partition size for %s: %d",
72 self.mountpoint, self.size)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050073
74 if not self.size:
75 return 0
76
77 requested_blocks = self.size
78
Brad Bishop6e60e8b2018-02-01 10:27:11 -050079 logger.debug("Requested blocks %d, current_blocks %d",
80 requested_blocks, current_blocks)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -050081
82 if requested_blocks > current_blocks:
83 return requested_blocks - current_blocks
84 else:
85 return 0
86
Brad Bishop6e60e8b2018-02-01 10:27:11 -050087 def get_rootfs_size(self, actual_rootfs_size=0):
88 """
89 Calculate the required size of rootfs taking into consideration
90 --size/--fixed-size flags as well as overhead and extra space, as
91 specified in kickstart file. Raises an error if the
92 `actual_rootfs_size` is larger than fixed-size rootfs.
93
94 """
95 if self.fixed_size:
96 rootfs_size = self.fixed_size
97 if actual_rootfs_size > rootfs_size:
98 raise WicError("Actual rootfs size (%d kB) is larger than "
99 "allowed size %d kB" %
100 (actual_rootfs_size, rootfs_size))
101 else:
102 extra_blocks = self.get_extra_block_count(actual_rootfs_size)
103 if extra_blocks < self.extra_space:
104 extra_blocks = self.extra_space
105
106 rootfs_size = actual_rootfs_size + extra_blocks
107 rootfs_size *= self.overhead_factor
108
109 logger.debug("Added %d extra blocks to %s to get to %d total blocks",
110 extra_blocks, self.mountpoint, rootfs_size)
111
112 return rootfs_size
113
114 @property
115 def disk_size(self):
116 """
117 Obtain on-disk size of partition taking into consideration
118 --size/--fixed-size options.
119
120 """
121 return self.fixed_size if self.fixed_size else self.size
122
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500123 def prepare(self, creator, cr_workdir, oe_builddir, rootfs_dir,
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600124 bootimg_dir, kernel_dir, native_sysroot, updated_fstab_path):
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500125 """
126 Prepare content for individual partitions, depending on
127 partition command parameters.
128 """
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600129 self.updated_fstab_path = updated_fstab_path
130 if self.updated_fstab_path and not (self.fstype.startswith("ext") or self.fstype == "msdos"):
131 self.update_fstab_in_rootfs = True
132
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500133 if not self.source:
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500134 if not self.size and not self.fixed_size:
135 raise WicError("The %s partition has a size of zero. Please "
136 "specify a non-zero --size/--fixed-size for that "
137 "partition." % self.mountpoint)
138
139 if self.fstype == "swap":
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500140 self.prepare_swap_partition(cr_workdir, oe_builddir,
141 native_sysroot)
142 self.source_file = "%s/fs.%s" % (cr_workdir, self.fstype)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500143 else:
144 if self.fstype == 'squashfs':
145 raise WicError("It's not possible to create empty squashfs "
146 "partition '%s'" % (self.mountpoint))
147
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500148 rootfs = "%s/fs_%s.%s.%s" % (cr_workdir, self.label,
149 self.lineno, self.fstype)
150 if os.path.isfile(rootfs):
151 os.remove(rootfs)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500152
153 prefix = "ext" if self.fstype.startswith("ext") else self.fstype
154 method = getattr(self, "prepare_empty_partition_" + prefix)
155 method(rootfs, oe_builddir, native_sysroot)
156 self.source_file = rootfs
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500157 return
158
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500159 plugins = PluginMgr.get_plugins('source')
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500160
161 if self.source not in plugins:
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500162 raise WicError("The '%s' --source specified for %s doesn't exist.\n\t"
163 "See 'wic list source-plugins' for a list of available"
164 " --sources.\n\tSee 'wic help source-plugins' for "
165 "details on adding a new source plugin." %
166 (self.source, self.mountpoint))
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500167
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500168 srcparams_dict = {}
169 if self.sourceparams:
170 # Split sourceparams string of the form key1=val1[,key2=val2,...]
171 # into a dict. Also accepts valueless keys i.e. without =
172 splitted = self.sourceparams.split(',')
Brad Bishop19323692019-04-05 15:28:33 -0400173 srcparams_dict = dict(par.split('=', 1) for par in splitted if par)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500174
175 plugin = PluginMgr.get_plugins('source')[self.source]
176 plugin.do_configure_partition(self, srcparams_dict, creator,
177 cr_workdir, oe_builddir, bootimg_dir,
178 kernel_dir, native_sysroot)
179 plugin.do_stage_partition(self, srcparams_dict, creator,
180 cr_workdir, oe_builddir, bootimg_dir,
181 kernel_dir, native_sysroot)
182 plugin.do_prepare_partition(self, srcparams_dict, creator,
183 cr_workdir, oe_builddir, bootimg_dir,
184 kernel_dir, rootfs_dir, native_sysroot)
Brad Bishop316dfdd2018-06-25 12:45:53 -0400185 plugin.do_post_partition(self, srcparams_dict, creator,
186 cr_workdir, oe_builddir, bootimg_dir,
187 kernel_dir, rootfs_dir, native_sysroot)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500188
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500189 # further processing required Partition.size to be an integer, make
190 # sure that it is one
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500191 if not isinstance(self.size, int):
192 raise WicError("Partition %s internal size is not an integer. "
193 "This a bug in source plugin %s and needs to be fixed." %
194 (self.mountpoint, self.source))
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500195
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500196 if self.fixed_size and self.size > self.fixed_size:
197 raise WicError("File system image of partition %s is "
198 "larger (%d kB) than its allowed size %d kB" %
199 (self.mountpoint, self.size, self.fixed_size))
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500200
201 def prepare_rootfs(self, cr_workdir, oe_builddir, rootfs_dir,
Andrew Geissler82c905d2020-04-13 13:39:40 -0500202 native_sysroot, real_rootfs = True, pseudo_dir = None):
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500203 """
204 Prepare content for a rootfs partition i.e. create a partition
205 and fill it from a /rootfs dir.
206
Brad Bishop316dfdd2018-06-25 12:45:53 -0400207 Currently handles ext2/3/4, btrfs, vfat and squashfs.
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500208 """
Andrew Geisslerf0343792020-11-18 10:42:21 -0600209
210 rootfs = "%s/rootfs_%s.%s.%s" % (cr_workdir, self.label,
211 self.lineno, self.fstype)
212 if os.path.isfile(rootfs):
213 os.remove(rootfs)
214
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500215 p_prefix = os.environ.get("PSEUDO_PREFIX", "%s/usr" % native_sysroot)
Andrew Geissler82c905d2020-04-13 13:39:40 -0500216 if (pseudo_dir):
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600217 # Canonicalize the ignore paths. This corresponds to
218 # calling oe.path.canonicalize(), which is used in bitbake.conf.
219 ignore_paths = [rootfs] + (get_bitbake_var("PSEUDO_IGNORE_PATHS") or "").split(",")
220 canonical_paths = []
221 for path in ignore_paths:
222 if "$" not in path:
223 trailing_slash = path.endswith("/") and "/" or ""
224 canonical_paths.append(os.path.realpath(path) + trailing_slash)
225 ignore_paths = ",".join(canonical_paths)
226
Andrew Geissler82c905d2020-04-13 13:39:40 -0500227 pseudo = "export PSEUDO_PREFIX=%s;" % p_prefix
228 pseudo += "export PSEUDO_LOCALSTATEDIR=%s;" % pseudo_dir
229 pseudo += "export PSEUDO_PASSWD=%s;" % rootfs_dir
230 pseudo += "export PSEUDO_NOSYMLINKEXP=1;"
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600231 pseudo += "export PSEUDO_IGNORE_PATHS=%s;" % ignore_paths
Andrew Geissler82c905d2020-04-13 13:39:40 -0500232 pseudo += "%s " % get_bitbake_var("FAKEROOTCMD")
233 else:
234 pseudo = None
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500235
Brad Bishop316dfdd2018-06-25 12:45:53 -0400236 if not self.size and real_rootfs:
Brad Bishop00e122a2019-10-05 11:10:57 -0400237 # The rootfs size is not set in .ks file so try to get it
238 # from bitbake variable
239 rsize_bb = get_bitbake_var('ROOTFS_SIZE')
240 rdir = get_bitbake_var('IMAGE_ROOTFS')
241 if rsize_bb and rdir == rootfs_dir:
242 # Bitbake variable ROOTFS_SIZE is calculated in
243 # Image._get_rootfs_size method from meta/lib/oe/image.py
244 # using IMAGE_ROOTFS_SIZE, IMAGE_ROOTFS_ALIGNMENT,
245 # IMAGE_OVERHEAD_FACTOR and IMAGE_ROOTFS_EXTRA_SPACE
246 self.size = int(round(float(rsize_bb)))
247 else:
248 # Bitbake variable ROOTFS_SIZE is not defined so compute it
249 # from the rootfs_dir size using the same logic found in
250 # get_rootfs_size() from meta/classes/image.bbclass
251 du_cmd = "du -ks %s" % rootfs_dir
252 out = exec_cmd(du_cmd)
253 self.size = int(out.split()[0])
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500254
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500255 prefix = "ext" if self.fstype.startswith("ext") else self.fstype
256 method = getattr(self, "prepare_rootfs_" + prefix)
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600257 method(rootfs, cr_workdir, oe_builddir, rootfs_dir, native_sysroot, pseudo)
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500258 self.source_file = rootfs
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500259
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500260 # get the rootfs size in the right units for kickstart (kB)
261 du_cmd = "du -Lbks %s" % rootfs
262 out = exec_cmd(du_cmd)
263 self.size = int(out.split()[0])
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500264
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600265 def prepare_rootfs_ext(self, rootfs, cr_workdir, oe_builddir, rootfs_dir,
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500266 native_sysroot, pseudo):
267 """
268 Prepare content for an ext2/3/4 rootfs partition.
269 """
270 du_cmd = "du -ks %s" % rootfs_dir
271 out = exec_cmd(du_cmd)
272 actual_rootfs_size = int(out.split()[0])
273
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500274 rootfs_size = self.get_rootfs_size(actual_rootfs_size)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500275
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500276 with open(rootfs, 'w') as sparse:
277 os.ftruncate(sparse.fileno(), rootfs_size * 1024)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500278
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500279 extraopts = self.mkfs_extraopts or "-F -i 8192"
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500280
281 label_str = ""
282 if self.label:
283 label_str = "-L %s" % self.label
284
Brad Bishop316dfdd2018-06-25 12:45:53 -0400285 mkfs_cmd = "mkfs.%s %s %s %s -U %s -d %s" % \
286 (self.fstype, extraopts, rootfs, label_str, self.fsuuid, rootfs_dir)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500287 exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
288
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600289 if self.updated_fstab_path and self.has_fstab:
290 debugfs_script_path = os.path.join(cr_workdir, "debugfs_script")
291 with open(debugfs_script_path, "w") as f:
292 f.write("cd etc\n")
293 f.write("rm fstab\n")
294 f.write("write %s fstab\n" % (self.updated_fstab_path))
295 debugfs_cmd = "debugfs -w -f %s %s" % (debugfs_script_path, rootfs)
296 exec_native_cmd(debugfs_cmd, native_sysroot)
297
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500298 mkfs_cmd = "fsck.%s -pvfD %s" % (self.fstype, rootfs)
Brad Bishop37a0e4d2017-12-04 01:01:44 -0500299 exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
300
Andrew Geissler90fd73c2021-03-05 15:25:55 -0600301 self.check_for_Y2038_problem(rootfs, native_sysroot)
302
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600303 def prepare_rootfs_btrfs(self, rootfs, cr_workdir, oe_builddir, rootfs_dir,
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500304 native_sysroot, pseudo):
305 """
306 Prepare content for a btrfs rootfs partition.
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500307 """
308 du_cmd = "du -ks %s" % rootfs_dir
309 out = exec_cmd(du_cmd)
310 actual_rootfs_size = int(out.split()[0])
311
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500312 rootfs_size = self.get_rootfs_size(actual_rootfs_size)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500313
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500314 with open(rootfs, 'w') as sparse:
315 os.ftruncate(sparse.fileno(), rootfs_size * 1024)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500316
317 label_str = ""
318 if self.label:
319 label_str = "-L %s" % self.label
320
Brad Bishop316dfdd2018-06-25 12:45:53 -0400321 mkfs_cmd = "mkfs.%s -b %d -r %s %s %s -U %s %s" % \
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500322 (self.fstype, rootfs_size * 1024, rootfs_dir, label_str,
Brad Bishop316dfdd2018-06-25 12:45:53 -0400323 self.mkfs_extraopts, self.fsuuid, rootfs)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500324 exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
325
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600326 def prepare_rootfs_msdos(self, rootfs, cr_workdir, oe_builddir, rootfs_dir,
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500327 native_sysroot, pseudo):
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500328 """
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500329 Prepare content for a msdos/vfat rootfs partition.
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500330 """
331 du_cmd = "du -bks %s" % rootfs_dir
332 out = exec_cmd(du_cmd)
333 blocks = int(out.split()[0])
334
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500335 rootfs_size = self.get_rootfs_size(blocks)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500336
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500337 label_str = "-n boot"
338 if self.label:
339 label_str = "-n %s" % self.label
340
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500341 size_str = ""
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500342
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500343 extraopts = self.mkfs_extraopts or '-S 512'
344
Brad Bishop316dfdd2018-06-25 12:45:53 -0400345 dosfs_cmd = "mkdosfs %s -i %s %s %s -C %s %d" % \
346 (label_str, self.fsuuid, size_str, extraopts, rootfs,
Brad Bishopc342db32019-05-15 21:57:59 -0400347 rootfs_size)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500348 exec_native_cmd(dosfs_cmd, native_sysroot)
349
350 mcopy_cmd = "mcopy -i %s -s %s/* ::/" % (rootfs, rootfs_dir)
351 exec_native_cmd(mcopy_cmd, native_sysroot)
352
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600353 if self.updated_fstab_path and self.has_fstab:
354 mcopy_cmd = "mcopy -i %s %s ::/etc/fstab" % (rootfs, self.updated_fstab_path)
355 exec_native_cmd(mcopy_cmd, native_sysroot)
356
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500357 chmod_cmd = "chmod 644 %s" % rootfs
358 exec_cmd(chmod_cmd)
359
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500360 prepare_rootfs_vfat = prepare_rootfs_msdos
361
Andrew Geisslerd1e89492021-02-12 15:35:20 -0600362 def prepare_rootfs_squashfs(self, rootfs, cr_workdir, oe_builddir, rootfs_dir,
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500363 native_sysroot, pseudo):
364 """
365 Prepare content for a squashfs rootfs partition.
366 """
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500367 extraopts = self.mkfs_extraopts or '-noappend'
368 squashfs_cmd = "mksquashfs %s %s %s" % \
369 (rootfs_dir, rootfs, extraopts)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500370 exec_native_cmd(squashfs_cmd, native_sysroot, pseudo=pseudo)
371
372 def prepare_empty_partition_ext(self, rootfs, oe_builddir,
373 native_sysroot):
374 """
375 Prepare an empty ext2/3/4 partition.
376 """
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500377 size = self.disk_size
378 with open(rootfs, 'w') as sparse:
379 os.ftruncate(sparse.fileno(), size * 1024)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500380
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500381 extraopts = self.mkfs_extraopts or "-i 8192"
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500382
383 label_str = ""
384 if self.label:
385 label_str = "-L %s" % self.label
386
Brad Bishop316dfdd2018-06-25 12:45:53 -0400387 mkfs_cmd = "mkfs.%s -F %s %s -U %s %s" % \
388 (self.fstype, extraopts, label_str, self.fsuuid, rootfs)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500389 exec_native_cmd(mkfs_cmd, native_sysroot)
390
Andrew Geissler90fd73c2021-03-05 15:25:55 -0600391 self.check_for_Y2038_problem(rootfs, native_sysroot)
392
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500393 def prepare_empty_partition_btrfs(self, rootfs, oe_builddir,
394 native_sysroot):
395 """
396 Prepare an empty btrfs partition.
397 """
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500398 size = self.disk_size
399 with open(rootfs, 'w') as sparse:
400 os.ftruncate(sparse.fileno(), size * 1024)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500401
402 label_str = ""
403 if self.label:
404 label_str = "-L %s" % self.label
405
Brad Bishop316dfdd2018-06-25 12:45:53 -0400406 mkfs_cmd = "mkfs.%s -b %d %s -U %s %s %s" % \
407 (self.fstype, self.size * 1024, label_str, self.fsuuid,
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500408 self.mkfs_extraopts, rootfs)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500409 exec_native_cmd(mkfs_cmd, native_sysroot)
410
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500411 def prepare_empty_partition_msdos(self, rootfs, oe_builddir,
412 native_sysroot):
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500413 """
414 Prepare an empty vfat partition.
415 """
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500416 blocks = self.disk_size
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500417
418 label_str = "-n boot"
419 if self.label:
420 label_str = "-n %s" % self.label
421
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500422 size_str = ""
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500423
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500424 extraopts = self.mkfs_extraopts or '-S 512'
425
Brad Bishop316dfdd2018-06-25 12:45:53 -0400426 dosfs_cmd = "mkdosfs %s -i %s %s %s -C %s %d" % \
427 (label_str, self.fsuuid, extraopts, size_str, rootfs,
428 blocks)
Brad Bishopd7bf8c12018-02-25 22:55:05 -0500429
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500430 exec_native_cmd(dosfs_cmd, native_sysroot)
431
432 chmod_cmd = "chmod 644 %s" % rootfs
433 exec_cmd(chmod_cmd)
434
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500435 prepare_empty_partition_vfat = prepare_empty_partition_msdos
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500436
437 def prepare_swap_partition(self, cr_workdir, oe_builddir, native_sysroot):
438 """
439 Prepare a swap partition.
440 """
441 path = "%s/fs.%s" % (cr_workdir, self.fstype)
442
Brad Bishop6e60e8b2018-02-01 10:27:11 -0500443 with open(path, 'w') as sparse:
444 os.ftruncate(sparse.fileno(), self.size * 1024)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500445
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500446 label_str = ""
447 if self.label:
448 label_str = "-L %s" % self.label
Brad Bishop316dfdd2018-06-25 12:45:53 -0400449
450 mkswap_cmd = "mkswap %s -U %s %s" % (label_str, self.fsuuid, path)
Patrick Williamsd8c66bc2016-06-20 12:57:21 -0500451 exec_native_cmd(mkswap_cmd, native_sysroot)
Andrew Geissler90fd73c2021-03-05 15:25:55 -0600452
453 def check_for_Y2038_problem(self, rootfs, native_sysroot):
454 """
455 Check if the filesystem is affected by the Y2038 problem
456 (Y2038 problem = 32 bit time_t overflow in January 2038)
457 """
458 def get_err_str(part):
459 err = "The {} filesystem {} has no Y2038 support."
460 if part.mountpoint:
461 args = [part.fstype, "mounted at %s" % part.mountpoint]
462 elif part.label:
463 args = [part.fstype, "labeled '%s'" % part.label]
464 elif part.part_name:
465 args = [part.fstype, "in partition '%s'" % part.part_name]
466 else:
467 args = [part.fstype, "in partition %s" % part.num]
468 return err.format(*args)
469
470 # ext2 and ext3 are always affected by the Y2038 problem
471 if self.fstype in ["ext2", "ext3"]:
472 logger.warn(get_err_str(self))
473 return
474
475 ret, out = exec_native_cmd("dumpe2fs %s" % rootfs, native_sysroot)
476
477 # if ext4 is affected by the Y2038 problem depends on the inode size
478 for line in out.splitlines():
479 if line.startswith("Inode size:"):
480 size = int(line.split(":")[1].strip())
481 if size < 256:
482 logger.warn("%s Inodes (of size %d) are too small." %
483 (get_err_str(self), size))
484 break
485