TheArchive/Magisk
1
0
Fork 0
mirror of https://github.com/topjohnwu/Magisk.git synced 2024-12-22 16:07:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

Skip svc for ro properties

Browse Source 
ro properties' triggers should only be triggered once, otherwise it
may undefined behaviour.
This patch avoids triggering ro properties' actions again when using
resetprop to modify them.

Co-authored-by: 5ec1cff <ewtqyqyewtqyqy@gmail.com>
This commit is contained in:
LoveSy 2023-12-17 03:12:08 +08:00 committed by topjohnwu
parent a003336497
commit f41994cb52
3 changed files with 16 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
native/src/core/module.cpp
View File

@ -313,12 +313,12 @@ void load_modules() {
native_bridge_orig = "0";
}
native_bridge = native_bridge_orig != "0" ? ZYGISKLDR + native_bridge_orig : ZYGISKLDR;
set_prop(NBPROP, native_bridge.data(), true);
set_prop(NBPROP, native_bridge.data());
// Weather Huawei's Maple compiler is enabled.
// If so, system server will be created by a special Zygote which ignores the native bridge
// and make system server out of our control. Avoid it by disabling.
if (get_prop("ro.maple.enable") == "1") {
set_prop("ro.maple.enable", "0", true);
set_prop("ro.maple.enable", "0");
}
inject_zygisk_libs(system);
}

14
native/src/core/resetprop/resetprop.cpp
View File

@ -9,6 +9,7 @@
#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
#include <api/_system_properties.h>
#include <system_properties/prop_info.h>
using namespace std;
@ -134,17 +135,20 @@ static int set_prop(const char *name, const char *value, PropFlags flags) {
if (!check_legal_property_name(name))
return 1;
const char *msg = flags.isSkipSvc() ? "direct modification" : "property_service";
auto pi = const_cast<prop_info *>(__system_property_find(name));
// Always delete existing read-only properties, because they could be
// long properties and cannot directly go through __system_property_update
if (pi != nullptr && str_starts(name, "ro.")) {
// Delete existing read-only properties if they are or will be long properties,
// which cannot directly go through __system_property_update
if (str_starts(name, "ro.")) {
if (pi != nullptr && (pi->is_long() || strlen(value) >= PROP_VALUE_MAX)) {
// Skip pruning nodes as we will add it back ASAP
__system_property_delete(name, false);
pi = nullptr;
}
flags.setSkipSvc();
}
const char *msg = flags.isSkipSvc() ? "direct modification" : "property_service";
int ret;
if (pi != nullptr) {

4
native/src/core/zygisk/entry.cpp
View File

@ -245,8 +245,8 @@ void reset_zygisk(bool restore) {
if (native_bridge.length() > strlen(ZYGISKLDR)) {
native_bridge_orig = native_bridge.substr(strlen(ZYGISKLDR));
}
set_prop(NBPROP, native_bridge_orig.data(), true);
set_prop(NBPROP, native_bridge_orig.data());
} else {
set_prop(NBPROP, native_bridge.data(), true);
set_prop(NBPROP, native_bridge.data());
}
}