Commit 83d856e4 authored May 17, 2019 by Hridya Valsaraju

Get max-download-size from device during fastbootd for flashall/update

Currently, during a 'fastboot flashall/fastboot update', the 'getvar
max-download-size' command is issued once to the device when it is in
bootloader mode and the same value is used even after the device boots
into fastbootd. If the max-download-size returned by bootloader is
greater than the max-download-size in fastbootd, this could break flash
as large images are broken down into chunks before downloading by using
the max-download-size variable. This will cause fastbootd to return
an error since it checks whether the buffer being downloaded has a size
greater than the max-download-size limit.

Test: fastboot flashall
Bug: 536870912

Change-Id: Ife7c1ec0583d80d4a31ecf01f1fc14a8365afe0d

parent 56311071

fastboot/fastboot.cpp

+4 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1177,6 +1177,10 @@ static void reboot_to_userspace_fastboot() {
	if (!is_userspace_fastboot()) {		if (!is_userspace_fastboot()) {
	die("Failed to boot into userspace fastboot; one or more components might be unbootable.");		die("Failed to boot into userspace fastboot; one or more components might be unbootable.");
	}		}

			// Reset target_sparse_limit after reboot to userspace fastboot. Max
			// download sizes may differ in bootloader and fastbootd.
			target_sparse_limit = -1;
	}		}

	class ImageSource {		class ImageSource {