mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-12-24 04:47:39 +00:00
Remove sysprop fallback
The library now supports mapping as ro
This commit is contained in:
topjohnwu
parent
f36b21bae5
commit
17569005a4
@ -11,14 +11,11 @@
|
||||
using namespace std;
|
||||
|
||||
#ifdef APPLET_STUB_MAIN
|
||||
#define system_property_set __system_property_set
|
||||
#define system_property_find __system_property_find
|
||||
#define system_property_read_callback __system_property_read_callback
|
||||
#define system_property_foreach __system_property_foreach
|
||||
#define system_property_set __system_property_set
|
||||
#define system_property_find __system_property_find
|
||||
#define system_property_read_callback __system_property_read_callback
|
||||
#define system_property_foreach __system_property_foreach
|
||||
#define system_property_read(...)
|
||||
extern "C" int fsetxattr(int fd, const char* name, const void* value, size_t size, int flags) {
|
||||
return syscall(__NR_fsetxattr, fd, name, value, size, flags);
|
||||
}
|
||||
#else
|
||||
static int (*system_property_set)(const char*, const char*);
|
||||
static int (*system_property_read)(const prop_info*, char*, char*);
|
||||
@ -26,18 +23,6 @@ static const prop_info *(*system_property_find)(const char*);
|
||||
static void (*system_property_read_callback)(
|
||||
const prop_info*, void (*)(void*, const char*, const char*, uint32_t), void*);
|
||||
static int (*system_property_foreach)(void (*)(const prop_info*, void*), void*);
|
||||
|
||||
#define DLOAD(name) \
|
||||
*(void **) &name = dlsym(RTLD_DEFAULT, "__" #name)
|
||||
|
||||
static void load_functions() {
|
||||
DLOAD(system_property_set);
|
||||
DLOAD(system_property_read);
|
||||
DLOAD(system_property_find);
|
||||
DLOAD(system_property_read_callback);
|
||||
DLOAD(system_property_foreach);
|
||||
}
|
||||
#undef DLOAD
|
||||
#endif
|
||||
|
||||
[[noreturn]] static void usage(char* arg0) {
|
||||
@ -96,7 +81,7 @@ illegal:
|
||||
return false;
|
||||
}
|
||||
|
||||
static void read_prop(const prop_info *pi, void *cb) {
|
||||
static void read_prop_with_cb(const prop_info *pi, void *cb) {
|
||||
if (system_property_read_callback) {
|
||||
auto callback = [](void *cb, const char *name, const char *value, uint32_t) {
|
||||
static_cast<prop_cb*>(cb)->exec(name, value);
|
||||
@ -112,57 +97,37 @@ static void read_prop(const prop_info *pi, void *cb) {
|
||||
}
|
||||
}
|
||||
|
||||
struct sysprop_stub {
|
||||
virtual int setprop(const char *name, const char *value, bool trigger) { return 1; }
|
||||
virtual string getprop(const char *name, bool persist) { return string(); }
|
||||
virtual string getcontext(const char *name) { return string(); }
|
||||
virtual void getprops(void (*callback)(const char *, const char *, void *),
|
||||
void *cookie, bool persist) {}
|
||||
virtual int delprop(const char *name, bool persist) { return 1; }
|
||||
struct prop_to_string : prop_cb {
|
||||
explicit prop_to_string(string &s) : val(s) {}
|
||||
void exec(const char *, const char *value) override {
|
||||
val = value;
|
||||
}
|
||||
private:
|
||||
string &val;
|
||||
};
|
||||
|
||||
struct sysprop : public sysprop_stub {
|
||||
struct resetprop {
|
||||
|
||||
int setprop(const char *name, const char *value, bool) override {
|
||||
if (!check_legal_property_name(name))
|
||||
return 1;
|
||||
return system_property_set(name, value);
|
||||
}
|
||||
resetprop() {
|
||||
|
||||
struct prop_to_string : prop_cb {
|
||||
explicit prop_to_string(string &s) : val(s) {}
|
||||
void exec(const char *, const char *value) override {
|
||||
val = value;
|
||||
#ifndef APPLET_STUB_MAIN
|
||||
#define DLOAD(name) (*(void **) &name = dlsym(RTLD_DEFAULT, "__" #name))
|
||||
// Load platform implementations
|
||||
DLOAD(system_property_set);
|
||||
DLOAD(system_property_read);
|
||||
DLOAD(system_property_find);
|
||||
DLOAD(system_property_read_callback);
|
||||
DLOAD(system_property_foreach);
|
||||
#undef DLOAD
|
||||
#endif
|
||||
|
||||
if (__system_properties_init()) {
|
||||
LOGE("resetprop: __system_properties_init error\n");
|
||||
}
|
||||
private:
|
||||
string &val;
|
||||
};
|
||||
|
||||
string getprop(const char *name, bool) override {
|
||||
string val;
|
||||
if (!check_legal_property_name(name))
|
||||
return val;
|
||||
auto pi = system_property_find(name);
|
||||
if (pi == nullptr)
|
||||
return val;
|
||||
auto prop = prop_to_string(val);
|
||||
read_prop(pi, &prop);
|
||||
LOGD("resetprop: getprop [%s]: [%s]\n", name, val.data());
|
||||
return val;
|
||||
}
|
||||
|
||||
void getprops(void (*callback)(const char*, const char*, void*), void *cookie, bool) override {
|
||||
prop_list list;
|
||||
prop_collector collector(list);
|
||||
system_property_foreach(read_prop, &collector);
|
||||
for (auto &[key, val] : list)
|
||||
callback(key.data(), val.data(), cookie);
|
||||
}
|
||||
};
|
||||
|
||||
struct resetprop : public sysprop {
|
||||
|
||||
int setprop(const char *name, const char *value, bool prop_svc) override {
|
||||
int setprop(const char *name, const char *value, bool prop_svc) {
|
||||
if (!check_legal_property_name(name))
|
||||
return 1;
|
||||
|
||||
@ -200,8 +165,17 @@ struct resetprop : public sysprop {
|
||||
return ret;
|
||||
}
|
||||
|
||||
string getprop(const char *name, bool persist) override {
|
||||
string val = sysprop::getprop(name, persist);
|
||||
string getprop(const char *name, bool persist) {
|
||||
string val;
|
||||
if (!check_legal_property_name(name))
|
||||
return val;
|
||||
auto pi = system_property_find(name);
|
||||
if (pi == nullptr)
|
||||
return val;
|
||||
auto cb = prop_to_string(val);
|
||||
read_prop_with_cb(pi, &cb);
|
||||
LOGD("resetprop: getprop [%s]: [%s]\n", name, val.data());
|
||||
|
||||
if (val.empty() && persist && strncmp(name, "persist.", 8) == 0)
|
||||
val = persist_getprop(name);
|
||||
if (val.empty())
|
||||
@ -209,23 +183,19 @@ struct resetprop : public sysprop {
|
||||
return val;
|
||||
}
|
||||
|
||||
string getcontext(const char *name) override {
|
||||
string getcontext(const char *name) {
|
||||
if (!check_legal_property_name(name))
|
||||
return "";
|
||||
auto val = __system_property_get_context(name);
|
||||
if (val == nullptr) {
|
||||
LOGD("resetprop: prop [%s] does not support context\n", name);
|
||||
return "";
|
||||
}
|
||||
auto val = __system_property_get_context(name) ?: "";
|
||||
LOGD("resetprop: getcontext [%s]: [%s]\n", name, val);
|
||||
return val;
|
||||
}
|
||||
|
||||
void getprops(void (*callback)(const char *, const char *, void *),
|
||||
void *cookie, bool persist) override {
|
||||
void *cookie, bool persist) {
|
||||
prop_list list;
|
||||
prop_collector collector(list);
|
||||
system_property_foreach(read_prop, &collector);
|
||||
system_property_foreach(read_prop_with_cb, &collector);
|
||||
if (persist)
|
||||
persist_getprops(&collector);
|
||||
for (auto &[key, val] : list)
|
||||
@ -233,7 +203,7 @@ struct resetprop : public sysprop {
|
||||
}
|
||||
|
||||
// Not an error when something is deleted
|
||||
int delprop(const char *name, bool persist) override {
|
||||
int delprop(const char *name, bool persist) {
|
||||
if (!check_legal_property_name(name))
|
||||
return 1;
|
||||
LOGD("resetprop: delete prop [%s]\n", name);
|
||||
@ -247,26 +217,8 @@ struct resetprop : public sysprop {
|
||||
}
|
||||
};
|
||||
|
||||
static sysprop_stub *get_impl() {
|
||||
static sysprop_stub *impl = nullptr;
|
||||
if (impl == nullptr) {
|
||||
#ifdef APPLET_STUB_MAIN
|
||||
if (__system_properties_init()) {
|
||||
LOGE("resetprop: __system_properties_init error\n");
|
||||
exit(1);
|
||||
}
|
||||
impl = new resetprop();
|
||||
#else
|
||||
// Load platform implementations
|
||||
load_functions();
|
||||
if (__system_properties_init()) {
|
||||
LOGW("resetprop: __system_properties_init error\n");
|
||||
impl = new sysprop();
|
||||
} else {
|
||||
impl = new resetprop();
|
||||
}
|
||||
#endif
|
||||
}
|
||||
static resetprop *get_impl() {
|
||||
static resetprop *impl = new resetprop();
|
||||
return impl;
|
||||
}
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user