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 83d856e4c59b6c02eeb7d468892b157a13f7cbf5)
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index 827db96..e201186 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -1177,6 +1177,10 @@
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 {