Add more functionality into Rust

build.py

@@ -219,8 +219,6 @@ def run_ndk_build(cmds: list):
 
 
 def build_cpp_src(targets: set):
-    dump_flag_header()
-
     cmds = []
     clean = False
 
@@ -336,7 +334,11 @@ def dump_flag_header():
     flag_txt += f"#define MAGISK_DEBUG        {0 if args.release else 1}\n"
 
     native_gen_path.mkdir(mode=0o755, parents=True, exist_ok=True)
-    write_if_diff(Path(native_gen_path, "flags.h"), flag_txt)
+    write_if_diff(native_gen_path / "flags.h", flag_txt)
+
+    rust_flag_txt = f'pub const MAGISK_VERSION: &str = "{config["version"]}";\n'
+    rust_flag_txt += f'pub const MAGISK_VER_CODE: i32 = {config["versionCode"]};\n'
+    write_if_diff(native_gen_path / "flags.rs", rust_flag_txt)
 
 
 def build_native():
@@ -363,6 +365,7 @@ def build_native():
     if ccache := shutil.which("ccache"):
         os.environ["NDK_CCACHE"] = ccache
 
+    dump_flag_header()
     build_rust_src(targets)
     build_cpp_src(targets)
 

native/src/core/daemon.cpp

@@ -328,8 +328,7 @@ static void daemon_entry() {
     setcon(MAGISK_PROC_CON);
 
     rust::daemon_entry();
-
-    LOGI(NAME_WITH_VER(Magisk) " daemon started\n");
+    SDK_INT = MagiskD().sdk_int();
 
     // Escape from cgroup
     int pid = getpid();
@@ -343,23 +342,6 @@ static void daemon_entry() {
     // Get self stat
     xstat("/proc/self/exe", &self_st);
 
-    // Get API level
-    parse_prop_file("/system/build.prop", [](auto key, auto val) -> bool {
-        if (key == "ro.build.version.sdk") {
-            SDK_INT = parse_int(val);
-            return false;
-        }
-        return true;
-    });
-    if (SDK_INT < 0) {
-        // In case some devices do not store this info in build.prop, fallback to getprop
-        auto sdk = get_prop("ro.build.version.sdk");
-        if (!sdk.empty()) {
-            SDK_INT = parse_int(sdk);
-        }
-    }
-    LOGI("* Device API level: %d\n", SDK_INT);
-    
     // Samsung workaround  #7887
     if (access("/system_ext/app/mediatek-res/mediatek-res.apk", F_OK) == 0) {
         set_prop("ro.vendor.mtk_model", "0");

native/src/core/daemon.rs

@@ -1,7 +1,12 @@
+use crate::consts::{MAGISK_FULL_VER, MAIN_CONFIG};
+use crate::db::Sqlite3;
+use crate::ffi::{get_magisk_tmp, RequestCode};
+use crate::get_prop;
+use crate::logging::magisk_logging;
 use base::libc::{O_CLOEXEC, O_RDONLY};
 use base::{
-    cstr, libc, open_fd, BufReadExt, Directory, FsPathBuf, ReadExt, ResultExt, Utf8CStr,
-    Utf8CStrBuf, Utf8CStrBufArr, Utf8CStrBufRef, WalkResult,
+    cstr, info, libc, open_fd, BufReadExt, Directory, FsPath, FsPathBuf, ReadExt, ResultExt,
+    Utf8CStr, Utf8CStrBuf, Utf8CStrBufArr, Utf8CStrBufRef, WalkResult,
 };
 use bytemuck::bytes_of;
 use std::fs::File;
@@ -9,12 +14,6 @@ use std::io;
 use std::io::{BufReader, Read, Write};
 use std::sync::{Mutex, OnceLock};
 
-use crate::consts::MAIN_CONFIG;
-use crate::db::Sqlite3;
-use crate::ffi::{get_magisk_tmp, RequestCode};
-use crate::get_prop;
-use crate::logging::magisk_logging;
-
 // Global magiskd singleton
 pub static MAGISKD: OnceLock<MagiskD> = OnceLock::new();
 
@@ -45,19 +44,20 @@ pub struct MagiskD {
     pub logd: Mutex<Option<File>>,
     pub sql_connection: Mutex<Option<Sqlite3>>,
     boot_stage_lock: Mutex<BootStateFlags>,
-    is_emulator: bool,
+    sdk_int: i32,
+    pub is_emulator: bool,
     is_recovery: bool,
 }
 
 impl MagiskD {
-    pub fn is_emulator(&self) -> bool {
-        self.is_emulator
-    }
-
     pub fn is_recovery(&self) -> bool {
         self.is_recovery
     }
 
+    pub fn sdk_int(&self) -> i32 {
+        self.sdk_int
+    }
+
     pub fn boot_stage_handler(&self, client: i32, code: i32) {
         // Make sure boot stage execution is always serialized
         let mut state = self.boot_stage_lock.lock().unwrap();
@@ -117,7 +117,26 @@ pub fn daemon_entry() {
         });
     }
 
+    let mut sdk_int = -1;
+    if let Ok(file) = FsPath::from(cstr!("/system/build.prop")).open(O_RDONLY | O_CLOEXEC) {
+        let mut file = BufReader::new(file);
+        file.foreach_props(|key, val| {
+            if key == "ro.build.version.sdk" {
+                sdk_int = val.parse::<i32>().unwrap_or(-1);
+                return false;
+            }
+            true
+        });
+    }
+    if sdk_int < 0 {
+        // In case some devices do not store this info in build.prop, fallback to getprop
+        sdk_int = get_prop(cstr!("ro.build.version.sdk"), false)
+            .parse::<i32>()
+            .unwrap_or(-1);
+    }
+
     let magiskd = MagiskD {
+        sdk_int,
         is_emulator,
         is_recovery,
         ..Default::default()
@@ -125,6 +144,9 @@ pub fn daemon_entry() {
     magiskd.start_log_daemon();
     MAGISKD.set(magiskd).ok();
     magisk_logging();
+
+    info!("Magisk {} daemon started", MAGISK_FULL_VER);
+    info!("* Device API level: {}", sdk_int);
 }
 
 fn check_data() -> bool {

native/src/core/db.rs

@@ -232,7 +232,7 @@ impl MagiskD {
             DbEntryKey::SuMultiuserMode => MultiuserMode::default().repr,
             DbEntryKey::SuMntNs => MntNsMode::default().repr,
             DbEntryKey::DenylistConfig => 0,
-            DbEntryKey::ZygiskConfig => self.is_emulator() as i32,
+            DbEntryKey::ZygiskConfig => self.is_emulator as i32,
             DbEntryKey::BootloopCount => 0,
             _ => -1,
         };
@@ -251,7 +251,7 @@ impl MagiskD {
     }
 
     pub fn get_db_settings(&self, cfg: &mut DbSettings) -> SqliteResult {
-        cfg.zygisk = self.is_emulator();
+        cfg.zygisk = self.is_emulator;
         self.db_exec_with_rows("SELECT * FROM settings", &[], cfg)
             .sql_result()
     }

native/src/core/lib.rs

@@ -182,6 +182,7 @@ pub mod ffi {
         type MagiskD;
         fn setup_logfile(&self);
         fn is_recovery(&self) -> bool;
+        fn sdk_int(&self) -> i32;
         fn boot_stage_handler(&self, client: i32, code: i32);
 
         #[cxx_name = "get_db_settings"]

native/src/include/consts.rs

@@ -1,5 +1,13 @@
+#![allow(dead_code)]
 use base::const_format::concatcp;
 
+#[path = "../../out/generated/flags.rs"]
+mod flags;
+
+// versions
+pub use flags::*;
+pub const MAGISK_FULL_VER: &str = concatcp!(MAGISK_VERSION, "(", MAGISK_VER_CODE, ")");
+
 pub const LOGFILE: &str = "/cache/magisk.log";
 
 // data paths