Commit f929aaa7 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: 132917902

Change-Id: Ife7c1ec0583d80d4a31ecf01f1fc14a8365afe0d
Merged-In: Ife7c1ec0583d80d4a31ecf01f1fc14a8365afe0d
(cherry picked from commit 83d856e4)

parent 20b0bd9c

fastboot/fastboot.cpp

+4 −0

Original line number	Diff line number	Diff line
		@@ -1177,6 +1177,10 @@ static void reboot_to_userspace_fastboot() {
		if (!is_userspace_fastboot()) {
		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 {