commit 38b68c6a0e4810b188ac875733d8f480d5e2cf8f
author Yi-Yo Chiang <yochiang@google.com> Tue Nov 22 17:32:21 2022 +0800
committer Yi-Yo Chiang <yochiang@google.com> Tue Nov 22 17:32:21 2022 +0800
tree 3f25d641ec97b981be51dece05d1a6c8bb4c42a1
parent 3fca6e72cff8d20f8ac06a2f8f5d2a4821213a94

fastbootd: Add getvar is-force-debuggable

Export ro.force.debuggable property so that the user can check image
compatibility prior to running fastboot flash.
For example, if is-force-debuggable is yes, then the "system" and
"vendor" build fingerprint must match.

Bug: 191649082
Test: fastboot getvar is-force-debuggable
Change-Id: I772d98253f58ba208d5803e18b589ff693deebd0

fastboot/device/commands.cpp

diff --git a/fastboot/device/commands.cpp b/fastboot/device/commands.cpp
index f8befd3..e929f42 100644
--- a/fastboot/device/commands.cpp
+++ b/fastboot/device/commands.cpp
@@ -131,6 +131,7 @@
         {FB_VAR_PARTITION_TYPE, {GetPartitionType, GetAllPartitionArgsWithSlot}},
         {FB_VAR_IS_LOGICAL, {GetPartitionIsLogical, GetAllPartitionArgsWithSlot}},
         {FB_VAR_IS_USERSPACE, {GetIsUserspace, nullptr}},
+        {FB_VAR_IS_FORCE_DEBUGGABLE, {GetIsForceDebuggable, nullptr}},
         {FB_VAR_OFF_MODE_CHARGE_STATE, {GetOffModeChargeState, nullptr}},
         {FB_VAR_BATTERY_VOLTAGE, {GetBatteryVoltage, nullptr}},
         {FB_VAR_BATTERY_SOC_OK, {GetBatterySoCOk, nullptr}},

fastboot/device/variables.cpp

diff --git a/fastboot/device/variables.cpp b/fastboot/device/variables.cpp
index 5f99656..d2a7947 100644
--- a/fastboot/device/variables.cpp
+++ b/fastboot/device/variables.cpp
@@ -379,6 +379,12 @@
     return true;
 }
 
+bool GetIsForceDebuggable(FastbootDevice* /* device */, const std::vector<std::string>& /* args */,
+                          std::string* message) {
+    *message = android::base::GetBoolProperty("ro.force.debuggable", false) ? "yes" : "no";
+    return true;
+}
+
 std::vector<std::vector<std::string>> GetAllPartitionArgsWithSlot(FastbootDevice* device) {
     std::vector<std::vector<std::string>> args;
     auto partitions = ListPartitions(device);

fastboot/device/variables.h

diff --git a/fastboot/device/variables.h b/fastboot/device/variables.h
index aa4d9fc..3b2d484 100644
--- a/fastboot/device/variables.h
+++ b/fastboot/device/variables.h
@@ -54,6 +54,8 @@
                            std::string* message);
 bool GetIsUserspace(FastbootDevice* device, const std::vector<std::string>& args,
                     std::string* message);
+bool GetIsForceDebuggable(FastbootDevice* device, const std::vector<std::string>& args,
+                          std::string* message);
 bool GetHardwareRevision(FastbootDevice* device, const std::vector<std::string>& args,
                          std::string* message);
 bool GetVariant(FastbootDevice* device, const std::vector<std::string>& args, std::string* message);