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Merge "adbd: remove ifdefs guarding root/secure."

This commit is contained in:
Josh Gao 2020-06-09 20:05:29 +00:00 committed by Gerrit Code Review
parent bd742a15ab d076857c4f
commit 536f220f55
2 changed files with 5 additions and 37 deletions
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11
adb/Android.bp
View File

@ -25,7 +25,6 @@ cc_defaults {
"-Wthread-safety",
"-Wvla",
"-DADB_HOST=1", // overridden by adbd_defaults
"-DALLOW_ADBD_ROOT=0", // overridden by adbd_defaults
"-DANDROID_BASE_UNIQUE_FD_DISABLE_IMPLICIT_CONVERSION=1",
],
cpp_std: "experimental",
@ -81,16 +80,6 @@ cc_defaults {
defaults: ["adb_defaults"],
cflags: ["-UADB_HOST", "-DADB_HOST=0"],
product_variables: {
debuggable: {
cflags: [
"-UALLOW_ADBD_ROOT",
"-DALLOW_ADBD_ROOT=1",
"-DALLOW_ADBD_DISABLE_VERITY",
"-DALLOW_ADBD_NO_AUTH",
],
},
},
}
cc_defaults {

31
adb/daemon/main.cpp
View File

@ -62,23 +62,7 @@
#if defined(__ANDROID__)
static const char* root_seclabel = nullptr;
static inline bool is_device_unlocked() {
return "orange" == android::base::GetProperty("ro.boot.verifiedbootstate", "");
}
static bool should_drop_capabilities_bounding_set() {
if (ALLOW_ADBD_ROOT || is_device_unlocked()) {
if (__android_log_is_debuggable()) {
return false;
}
}
return true;
}
static bool should_drop_privileges() {
// "adb root" not allowed, always drop privileges.
if (!ALLOW_ADBD_ROOT && !is_device_unlocked()) return true;
// The properties that affect `adb root` and `adb unroot` are ro.secure and
// ro.debuggable. In this context the names don't make the expected behavior
// particularly obvious.
@ -132,7 +116,7 @@ static void drop_privileges(int server_port) {
// Don't listen on a port (default 5037) if running in secure mode.
// Don't run as root if running in secure mode.
if (should_drop_privileges()) {
const bool should_drop_caps = should_drop_capabilities_bounding_set();
const bool should_drop_caps = !__android_log_is_debuggable();
if (should_drop_caps) {
minijail_use_caps(jail.get(), CAP_TO_MASK(CAP_SETUID) | CAP_TO_MASK(CAP_SETGID));
@ -218,15 +202,10 @@ int adbd_main(int server_port) {
// descriptor will always be open.
adbd_cloexec_auth_socket();
#if defined(__ANDROID_RECOVERY__)
if (is_device_unlocked() || __android_log_is_debuggable()) {
auth_required = false;
}
#elif defined(ALLOW_ADBD_NO_AUTH)
// If ro.adb.secure is unset, default to no authentication required.
auth_required = android::base::GetBoolProperty("ro.adb.secure", false);
#elif defined(__ANDROID__)
if (is_device_unlocked()) { // allows no authentication when the device is unlocked.
#if defined(__ANDROID__)
// If we're on userdebug/eng or the device is unlocked, permit no-authentication.
bool device_unlocked = "orange" == android::base::GetProperty("ro.boot.verifiedbootstate", "");
if (__android_log_is_debuggable() || device_unlocked) {
auth_required = android::base::GetBoolProperty("ro.adb.secure", false);
}
#endif