Add update_bootloader_message() to fix two-step OTAs.
This is a retry of commit 7e31f421a514da09b90e46dbd642a5e9b16e0003.
Commit bd56f1590c967205dc45eb2ec298aa8d2aacb740 switches to calling
write_bootloader_message(<options>) in get_args(), which
unintentionally resets the stage field thus breaks two-step OTAs.
This CL adds update_bootloader_message(<options>), which only sets
the command field (to "boot-recovery") and the recovery field (with
the specified options).
Bug: 33534933
Test: Apply a two-step package.
Test: recovery_component_test passes.
Change-Id: Ie0b1ed4053d2d3c97d9cb84310d616b28fcfc72e
diff --git a/bootloader_message/bootloader_message.cpp b/bootloader_message/bootloader_message.cpp
index 9a56718..b873d3d 100644
--- a/bootloader_message/bootloader_message.cpp
+++ b/bootloader_message/bootloader_message.cpp
@@ -176,6 +176,27 @@
return write_bootloader_message(boot, err);
}
+bool update_bootloader_message(const std::vector<std::string>& options, std::string* err) {
+ bootloader_message boot;
+ if (!read_bootloader_message(&boot, err)) {
+ return false;
+ }
+
+ // Zero out the entire fields.
+ memset(boot.command, 0, sizeof(boot.command));
+ memset(boot.recovery, 0, sizeof(boot.recovery));
+
+ strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
+ strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery));
+ for (const auto& s : options) {
+ strlcat(boot.recovery, s.c_str(), sizeof(boot.recovery));
+ if (s.back() != '\n') {
+ strlcat(boot.recovery, "\n", sizeof(boot.recovery));
+ }
+ }
+ return write_bootloader_message(boot, err);
+}
+
bool write_reboot_bootloader(std::string* err) {
bootloader_message boot;
if (!read_bootloader_message(&boot, err)) {