From d9cb014d431fee946308bdb8979c8e8fa74b582f Mon Sep 17 00:00:00 2001
From: Tao Bao <tbao@google.com>
Date: Tue, 23 Apr 2019 11:46:25 -0700
Subject: Parse BCB command to enter rescue mode.

bootloader will set `boot-rescue` in BCB command field to indicate
booting into rescue mode. This CL adds the matching parsing code.

This CL changes the on-screen UI to display the default image while
waiting for each sideload / rescue command.

It also changes the minadbd reboot handlers to use REBOOT_ instead of
the previous ENTER_ actions. This ensures a reboot going through
bootloader, which may load a newly installed bootloader/recovery.

Bug: 128505466
Test: Boot into rescue mode. Run `adb rescue getprop` and `adb rescue
      install`. Check the UI. Then run `adb reboot rescue`.
Change-Id: I5b7de9dfd898ed8e14bea0d4ad7385a9bae26e94
---
 recovery.cpp | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

(limited to 'recovery.cpp')

diff --git a/recovery.cpp b/recovery.cpp
index 5bd9b1728..f9b3bfc0b 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -509,12 +509,14 @@ static Device::BuiltinAction prompt_and_wait(Device* device, int status) {
       case Device::NO_ACTION:
         break;
 
+      case Device::ENTER_FASTBOOT:
+      case Device::ENTER_RECOVERY:
       case Device::REBOOT:
-      case Device::SHUTDOWN:
       case Device::REBOOT_BOOTLOADER:
+      case Device::REBOOT_FASTBOOT:
+      case Device::REBOOT_RECOVERY:
       case Device::REBOOT_RESCUE:
-      case Device::ENTER_FASTBOOT:
-      case Device::ENTER_RECOVERY:
+      case Device::SHUTDOWN:
         return chosen_action;
 
       case Device::WIPE_DATA:
@@ -728,6 +730,7 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
     { "locale", required_argument, nullptr, 0 },
     { "prompt_and_wipe_data", no_argument, nullptr, 0 },
     { "reason", required_argument, nullptr, 0 },
+    { "rescue", no_argument, nullptr, 0 },
     { "retry_count", required_argument, nullptr, 0 },
     { "security", no_argument, nullptr, 0 },
     { "show_text", no_argument, nullptr, 't' },
@@ -750,6 +753,7 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
   size_t wipe_package_size = 0;
   bool sideload = false;
   bool sideload_auto_reboot = false;
+  bool rescue = false;
   bool just_exit = false;
   bool shutdown_after = false;
   bool fsck_unshare_blocks = false;
@@ -783,6 +787,8 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
           should_prompt_and_wipe_data = true;
         } else if (option == "reason") {
           reason = optarg;
+        } else if (option == "rescue") {
+          rescue = true;
         } else if (option == "retry_count") {
           android::base::ParseInt(optarg, &retry_count, 0);
         } else if (option == "security") {
@@ -946,6 +952,10 @@ Device::BuiltinAction start_recovery(Device* device, const std::vector<std::stri
       status = INSTALL_REBOOT;
       ui->Print("Rebooting automatically.\n");
     }
+  } else if (rescue) {
+    save_current_log = true;
+    status = ApplyFromAdb(ui, true /* rescue_mode */, &next_action);
+    ui->Print("\nInstall from ADB complete (status: %d).\n", status);
   } else if (fsck_unshare_blocks) {
     if (!do_fsck_unshare_blocks()) {
       status = INSTALL_ERROR;
-- 
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