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[PATCH 1/2] tests/acceptance/boot_linux: Truncate SD card image to power
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH 1/2] tests/acceptance/boot_linux: Truncate SD card image to power of 2 |
Date: |
Tue, 7 Jul 2020 15:21:15 +0200 |
In the next commit we won't allow SD card images with invalid
size (not aligned to a power of 2). Prepare the tests: add the
pow2ceil() and image_pow2ceil_truncate() methods and truncate
the images of the tests using SD cards.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
tests/acceptance/boot_linux_console.py | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/tests/acceptance/boot_linux_console.py
b/tests/acceptance/boot_linux_console.py
index 3d02519660..f4d4e3635f 100644
--- a/tests/acceptance/boot_linux_console.py
+++ b/tests/acceptance/boot_linux_console.py
@@ -28,6 +28,18 @@
except CmdNotFoundError:
P7ZIP_AVAILABLE = False
+# round up to next power of 2
+def pow2ceil(x):
+ return 1 if x == 0 else 2**(x - 1).bit_length()
+
+# truncate file size to next power of 2
+def image_pow2ceil_truncate(path):
+ size = os.path.getsize(path)
+ size_aligned = pow2ceil(size)
+ if size != size_aligned:
+ with open(path, 'ab+') as fd:
+ fd.truncate(size_aligned)
+
class LinuxKernelTest(Test):
KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
@@ -635,6 +647,7 @@ def test_arm_orangepi_sd(self):
rootfs_path_xz = self.fetch_asset(rootfs_url, asset_hash=rootfs_hash)
rootfs_path = os.path.join(self.workdir, 'rootfs.cpio')
archive.lzma_uncompress(rootfs_path_xz, rootfs_path)
+ image_pow2ceil_truncate(rootfs_path)
self.vm.set_console()
kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
@@ -679,6 +692,7 @@ def test_arm_orangepi_bionic(self):
image_name = 'Armbian_19.11.3_Orangepipc_bionic_current_5.3.9.img'
image_path = os.path.join(self.workdir, image_name)
process.run("7z e -o%s %s" % (self.workdir, image_path_7z))
+ image_pow2ceil_truncate(image_path)
self.vm.set_console()
self.vm.add_args('-drive', 'file=' + image_path + ',if=sd,format=raw',
@@ -728,6 +742,7 @@ def test_arm_orangepi_uboot_netbsd9(self):
image_hash = '2babb29d36d8360adcb39c09e31060945259917a'
image_path_gz = self.fetch_asset(image_url, asset_hash=image_hash)
image_path = os.path.join(self.workdir, 'armv7.img')
+ image_pow2ceil_truncate(image_path)
image_drive_args = 'if=sd,format=raw,snapshot=on,file=' + image_path
archive.gzip_uncompress(image_path_gz, image_path)
--
2.21.3
- [PATCH 0/2] hw/sd/sdcard: Fix CVE-2020-13253 (Do not allow invalid SD card sizes), Philippe Mathieu-Daudé, 2020/07/07
- [PATCH 1/2] tests/acceptance/boot_linux: Truncate SD card image to power of 2,
Philippe Mathieu-Daudé <=
- [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Philippe Mathieu-Daudé, 2020/07/07
- Re: [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Alistair Francis, 2020/07/07
- Re: [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Peter Maydell, 2020/07/07
- Re: [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Philippe Mathieu-Daudé, 2020/07/07
- Re: [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Niek Linnenbank, 2020/07/07
- Re: [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Philippe Mathieu-Daudé, 2020/07/09
- Re: [PATCH 2/2] hw/sd/sdcard: Do not allow invalid SD card sizes, Peter Maydell, 2020/07/09