From 2e40c8d4109024ff704c5ce40d98050ca7f34dd5 Mon Sep 17 00:00:00 2001 From: Paul Barker Date: Tue, 19 Jan 2021 16:26:06 +0000 Subject: wic: Ensure internal workdir is not reused If a path is specified for the internal wic working directory using the -w/--workdir argument then it must not already exist. Re-using a previous workdir could easily result in rootfs and intermediate files from a previous build being added to the current image. Signed-off-by: Paul Barker Signed-off-by: Richard Purdie --- scripts/lib/wic/plugins/imager/direct.py | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'scripts/lib/wic') diff --git a/scripts/lib/wic/plugins/imager/direct.py b/scripts/lib/wic/plugins/imager/direct.py index b329568c7a..f107e60089 100644 --- a/scripts/lib/wic/plugins/imager/direct.py +++ b/scripts/lib/wic/plugins/imager/direct.py @@ -62,7 +62,7 @@ class DirectPlugin(ImagerPlugin): self.name = "%s-%s" % (os.path.splitext(os.path.basename(wks_file))[0], strftime("%Y%m%d%H%M")) - self.workdir = options.workdir or tempfile.mkdtemp(dir=self.outdir, prefix='tmp.wic.') + self.workdir = self.setup_workdir(options.workdir) self._image = None self.ptable_format = self.ks.bootloader.ptable self.parts = self.ks.partitions @@ -78,6 +78,16 @@ class DirectPlugin(ImagerPlugin): self._image = PartitionedImage(image_path, self.ptable_format, self.parts, self.native_sysroot) + def setup_workdir(self, workdir): + if workdir: + if os.path.exists(workdir): + raise WicError("Internal workdir '%s' specified in wic arguments already exists!" % (workdir)) + + os.makedirs(workdir) + return workdir + else: + return tempfile.mkdtemp(dir=self.outdir, prefix='tmp.wic.') + def do_create(self): """ Plugin entry point. -- cgit 1.2.3-korg