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Nullptr
2023-02-08 14:49:32 +08:00
parent 4ecb4a9276
commit 814476ea7a
14 changed files with 180 additions and 51 deletions
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loader/src/injector/hook.cpp
+16 -4
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@@ -204,7 +204,17 @@ DCL_HOOK_FUNC(int, unshare, int flags) {
return res;
}
/* Zygisksu changed: No android_log_close hook */
// Close logd_fd if necessary to prevent crashing
// For more info, check comments in zygisk_log_write
DCL_HOOK_FUNC(void, android_log_close) {
if (g_ctx == nullptr) {
// Happens during un-managed fork like nativeForkApp, nativeForkUsap
logging::setfd(-1);
} else if (!g_ctx->flags[SKIP_FD_SANITIZATION]) {
logging::setfd(-1);
}
old_android_log_close();
}
// Last point before process secontext changes
DCL_HOOK_FUNC(int, selinux_android_setcontext,
@@ -595,7 +605,7 @@ void HookContext::app_specialize_post() {
// Cleanups
env->ReleaseStringUTFChars(args.app->nice_name, process);
g_ctx = nullptr;
/* Zygisksu changed: No android_log_close */
logging::setfd(-1);
}
void HookContext::unload_zygisk() {
@@ -668,7 +678,9 @@ void HookContext::nativeForkAndSpecialize_pre() {
flags[APP_FORK_AND_SPECIALIZE] = true;
/* Zygisksu changed: No args.app->fds_to_ignore check since we are Android 10+ */
flags[SKIP_FD_SANITIZATION] = true;
if (logging::getfd() != -1) {
exempted_fds.push_back(logging::getfd());
}
fork_pre();
if (pid == 0) {
@@ -729,7 +741,7 @@ void hook_functions() {
PLT_HOOK_REGISTER(android_runtime_dev, android_runtime_inode, unshare);
PLT_HOOK_REGISTER(android_runtime_dev, android_runtime_inode, jniRegisterNativeMethods);
PLT_HOOK_REGISTER(android_runtime_dev, android_runtime_inode, selinux_android_setcontext);
/* Zygisksu changed: No android_log_close hook */
PLT_HOOK_REGISTER_SYM(android_runtime_dev, android_runtime_inode, "__android_log_close", android_log_close);
hook_commit();
// Remove unhooked methods