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Move MagiskInit::MagiskInit to rust

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This commit is contained in:
LoveSy 2025-01-30 20:20:37 +08:00 committed by John Wu
parent d203a6fff6
commit a85c4c6528
2 changed files with 63 additions and 41 deletions
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20
native/src/init/init.cpp
View File

@ -60,26 +60,6 @@ void restore_ramdisk_init() {
}
}
void MagiskInit::init() noexcept {
// Get kernel data using procfs and sysfs
if (access("/proc/cmdline", F_OK) != 0) {
xmkdir("/proc", 0755);
xmount("proc", "/proc", "proc", 0, nullptr);
mount_list.emplace_back("/proc");
}
if (access("/sys/block", F_OK) != 0) {
xmkdir("/sys", 0755);
xmount("sysfs", "/sys", "sysfs", 0, nullptr);
mount_list.emplace_back("/sys");
}
// Log to kernel
rust::setup_klog();
// Load kernel configs
config.init();
}
static void recovery() {
LOGI("Ramdisk is recovery, abort\n");
restore_ramdisk_init();

84
native/src/init/lib.rs
View File

@ -2,12 +2,18 @@
#![feature(once_cell_try)]
#![feature(try_blocks)]
use base::{
cstr,
libc::{mount},
raw_cstr, FsPath, LibcReturn, LoggedResult,
};
use logging::setup_klog;
use mount::{is_device_mounted, switch_root};
use rootdir::{collect_overlay_contexts, inject_magisk_rc, reset_overlay_contexts};
// Has to be pub so all symbols in that crate is included
pub use magiskpolicy;
use crate::ffi::{BootConfig, MagiskInit};
pub use magiskpolicy;
use std::ptr::null as nullptr;
mod logging;
mod mount;
@ -85,28 +91,64 @@ pub mod ffi {
fn legacy_system_as_root(self: &mut MagiskInit);
fn rootfs(self: &mut MagiskInit);
fn start(self: &mut MagiskInit);
fn init(self: &mut MagiskInit);
}
}
pub(crate) fn start_magisk_init(argv: *mut *mut std::ffi::c_char) {
let mut init = MagiskInit {
preinit_dev: String::new(),
mount_list: Vec::new(),
argv,
config: BootConfig {
skip_initramfs: false,
force_normal_boot: false,
rootwait: false,
emulator: false,
slot: [0; 3],
dt_dir: [0; 64],
fstab_suffix: [0; 32],
hardware: [0; 32],
hardware_plat: [0; 32],
partition_map: Vec::new(),
},
};
init.init();
init.start();
fn inner(argv: *mut *mut std::ffi::c_char) -> LoggedResult<()> {
let mut init = MagiskInit {
preinit_dev: String::new(),
mount_list: Vec::new(),
argv,
config: BootConfig {
skip_initramfs: false,
force_normal_boot: false,
rootwait: false,
emulator: false,
slot: [0; 3],
dt_dir: [0; 64],
fstab_suffix: [0; 32],
hardware: [0; 32],
hardware_plat: [0; 32],
partition_map: Vec::new(),
},
};
if !FsPath::from(cstr!("/proc/cmdline")).exists() {
FsPath::from(cstr!("/proc")).mkdir(0o755)?;
unsafe {
mount(
raw_cstr!("proc"),
raw_cstr!("/proc"),
raw_cstr!("proc"),
0,
nullptr(),
)
}
.as_os_err()?;
init.mount_list.push("/proc".to_string());
}
if !FsPath::from(cstr!("/sys/block")).exists() {
FsPath::from(cstr!("/sys")).mkdir(0o755)?;
unsafe {
mount(
raw_cstr!("sysfs"),
raw_cstr!("/sys"),
raw_cstr!("sysfs"),
0,
nullptr(),
)
}
.as_os_err()?;
init.mount_list.push("/sys".to_string());
}
setup_klog();
init.config.init();
init.start();
Ok(())
}
inner(argv).ok();
}