Merge "Add AID for Virtual Machines" into main
diff --git a/fs_mgr/fs_mgr_remount.cpp b/fs_mgr/fs_mgr_remount.cpp
index 733ba2f..79c0b6d 100644
--- a/fs_mgr/fs_mgr_remount.cpp
+++ b/fs_mgr/fs_mgr_remount.cpp
@@ -42,6 +42,7 @@
#include <fstab/fstab.h>
#include <libavb_user/libavb_user.h>
#include <libgsi/libgsid.h>
+#include <private/android_filesystem_config.h>
#include "fs_mgr_overlayfs_control.h"
#include "fs_mgr_overlayfs_mount.h"
@@ -608,7 +609,19 @@
}
// Make sure we are root.
- if (::getuid() != 0) {
+ if (const auto uid = ::getuid(); uid != AID_ROOT) {
+ // If requesting auto reboot, also try to auto gain root.
+ if (auto_reboot && uid == AID_SHELL && access("/system/xbin/su", F_OK) == 0) {
+ std::vector<char*> args{const_cast<char*>("/system/xbin/su"),
+ const_cast<char*>("root")};
+ for (int i = 0; i < argc; ++i) {
+ args.push_back(argv[i]);
+ }
+ args.push_back(nullptr);
+ LOG(INFO) << "Attempting to gain root with \"su root\"";
+ execv(args[0], args.data());
+ PLOG(ERROR) << "Failed to execute \"su root\"";
+ }
LOG(ERROR) << "Not running as root. Try \"adb root\" first.";
return EXIT_FAILURE;
}