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Add new Zygisk API to get module dir

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topjohnwu
2022-01-14 03:10:02 -08:00
parent d7b51d2807
commit 21d7db0959
7 changed files with 100 additions and 47 deletions
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native/jni/zygisk/hook.cpp
+32 -10
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@@ -294,16 +294,26 @@ bool ZygiskModule::RegisterModule(ApiTable *table, long *module) {
table->module->ver = module;
// Fill in API accordingly with module API version
table->v1.hookJniNativeMethods = &hookJniNativeMethods;
table->v1.pltHookRegister = [](const char *path, const char *symbol, void *n, void **o) {
xhook_register(path, symbol, n, o);
};
table->v1.pltHookExclude = [](const char *path, const char *symbol) {
xhook_ignore(path, symbol);
};
table->v1.pltHookCommit = []{ bool r = xhook_refresh(0) == 0; xhook_clear(); return r; };
table->v1.connectCompanion = [](ZygiskModule *m) { return m->connectCompanion(); };
table->v1.setOption = [](ZygiskModule *m, auto opt) { m->setOption(opt); };
switch (ver) {
case 2:
table->v2.getModuleDir = [](ZygiskModule *m) { return m->getModuleDir(); };
[[fallthrough]];
case 1:
table->v1.hookJniNativeMethods = &hookJniNativeMethods;
table->v1.pltHookRegister = [](const char *p, const char *s, void *n, void **o) {
xhook_register(p, s, n, o);
};
table->v1.pltHookExclude = [](const char *p, const char *s) {
xhook_ignore(p, s);
};
table->v1.pltHookCommit = []{ bool r = xhook_refresh(0) == 0; xhook_clear(); return r; };
table->v1.connectCompanion = [](ZygiskModule *m) { return m->connectCompanion(); };
table->v1.setOption = [](ZygiskModule *m, auto opt) { m->setOption(opt); };
break;
default:
// Unknown version number
return false;
}
return true;
}
@@ -318,6 +328,18 @@ int ZygiskModule::connectCompanion() const {
return -1;
}
int ZygiskModule::getModuleDir() const {
if (int fd = connect_daemon(); fd >= 0) {
write_int(fd, ZYGISK_REQUEST);
write_int(fd, ZYGISK_GET_MODDIR);
write_int(fd, id);
int dfd = recv_fd(fd);
close(fd);
return dfd;
}
return -1;
}
void ZygiskModule::setOption(zygisk::Option opt) {
if (g_ctx == nullptr)
return;