From b299cb7217e7f63d9128a0e595bcc21ab645f41f Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Wed, 17 Feb 2021 13:44:49 -0800
Subject: fastbootd: Add getvar max-fetch-size.

Test: run it
Test: see follow up CL on fuzzy_fastboot

Bug: 173654501

Change-Id: I5ed110c5569d83cbe791d04b4abea3a2af2765a9
---
 fastboot/device/variables.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'fastboot/device/variables.cpp')

diff --git a/fastboot/device/variables.cpp b/fastboot/device/variables.cpp
index e7d8bc366..ee1eed876 100644
--- a/fastboot/device/variables.cpp
+++ b/fastboot/device/variables.cpp
@@ -33,6 +33,12 @@
 #include "flashing.h"
 #include "utility.h"
 
+#ifdef FB_ENABLE_FETCH
+static constexpr bool kEnableFetch = true;
+#else
+static constexpr bool kEnableFetch = false;
+#endif
+
 using ::android::hardware::boot::V1_0::BoolResult;
 using ::android::hardware::boot::V1_0::Slot;
 using ::android::hardware::boot::V1_1::MergeStatus;
@@ -509,3 +515,13 @@ bool GetTrebleEnabled(FastbootDevice* /* device */, const std::vector<std::strin
     *message = android::base::GetProperty("ro.treble.enabled", "");
     return true;
 }
+
+bool GetMaxFetchSize(FastbootDevice* /* device */, const std::vector<std::string>& /* args */,
+                     std::string* message) {
+    if (!kEnableFetch) {
+        *message = "fetch not supported on user builds";
+        return false;
+    }
+    *message = android::base::StringPrintf("0x%X", kMaxFetchSizeDefault);
+    return true;
+}
-- 
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