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manager: add susfs status and sus_su toggle

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userspace: add susfsd
ci: build susfsd
ksud_overlayfs: update aarch64 bin  BusyBox v1.36.1.1 topjohnwu (2024-10-06 01:38:43 PDT)

Co-authored-by: rifsxd <rifat.44.azad.rifs@gmail.com>
This commit is contained in:
Rifat Azad
2025-01-15 14:26:42 +06:00
committed by ShirkNeko
parent 3208a916e2
commit 3121eb0f9a
13 changed files with 476 additions and 1 deletions
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3
userspace/ksud/bin/.gitignore vendored
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@@ -1 +1,2 @@
**/*.ko
**/*.ko
susfsd

1
userspace/ksud/src/assets.rs
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@@ -8,6 +8,7 @@ use crate::{defs::BINARY_DIR, utils};
pub const RESETPROP_PATH: &str = concatcp!(BINARY_DIR, "resetprop");
pub const BUSYBOX_PATH: &str = concatcp!(BINARY_DIR, "busybox");
pub const BOOTCTL_PATH: &str = concatcp!(BINARY_DIR, "bootctl");
pub const SUSFSD_PATH: &str = concatcp!(BINARY_DIR, "susfsd");
#[cfg(all(target_arch = "x86_64", target_os = "android"))]
#[derive(RustEmbed)]

2
userspace/ksud_overlayfs/bin/.gitignore vendored Normal file
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@@ -0,0 +1,2 @@
**/*.ko
susfsd

52
userspace/ksud_overlayfs/src/assets.rs Normal file
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@@ -0,0 +1,52 @@
use anyhow::Result;
use const_format::concatcp;
use rust_embed::RustEmbed;
use std::path::Path;
use crate::{defs::BINARY_DIR, utils};
pub const RESETPROP_PATH: &str = concatcp!(BINARY_DIR, "resetprop");
pub const BUSYBOX_PATH: &str = concatcp!(BINARY_DIR, "busybox");
pub const BOOTCTL_PATH: &str = concatcp!(BINARY_DIR, "bootctl");
pub const SUSFSD_PATH: &str = concatcp!(BINARY_DIR, "susfsd");
#[cfg(all(target_arch = "x86_64", target_os = "android"))]
#[derive(RustEmbed)]
#[folder = "bin/x86_64"]
struct Asset;
// IF NOT x86_64 ANDROID, ie. macos, linux, windows, always use aarch64
#[cfg(not(all(target_arch = "x86_64", target_os = "android")))]
#[derive(RustEmbed)]
#[folder = "bin/aarch64"]
struct Asset;
pub fn ensure_binaries(ignore_if_exist: bool) -> Result<()> {
for file in Asset::iter() {
if file == "ksuinit" || file.ends_with(".ko") {
// don't extract ksuinit and kernel modules
continue;
}
let asset = Asset::get(&file).ok_or(anyhow::anyhow!("asset not found: {}", file))?;
utils::ensure_binary(format!("{BINARY_DIR}{file}"), &asset.data, ignore_if_exist)?
}
Ok(())
}
pub fn copy_assets_to_file(name: &str, dst: impl AsRef<Path>) -> Result<()> {
let asset = Asset::get(name).ok_or(anyhow::anyhow!("asset not found: {}", name))?;
std::fs::write(dst, asset.data)?;
Ok(())
}
pub fn list_supported_kmi() -> Result<Vec<String>> {
let mut list = Vec::new();
for file in Asset::iter() {
// kmi_name = "xxx_kernelsu.ko"
if let Some(kmi) = file.strip_suffix("_kernelsu.ko") {
list.push(kmi.to_string());
}
}
Ok(list)
}

2
userspace/susfsd/.gitignore vendored Normal file
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@@ -0,0 +1,2 @@
/obj
/libs

6
userspace/susfsd/jni/Android.mk Normal file
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@@ -0,0 +1,6 @@
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := susfsd
LOCAL_SRC_FILES := susfsd.c
include $(BUILD_EXECUTABLE)

3
userspace/susfsd/jni/Application.mk Normal file
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@@ -0,0 +1,3 @@
APP_ABI := arm64-v8a
APP_PLATFORM := android-24
APP_STL := none

239
userspace/susfsd/jni/susfsd.c Normal file
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@@ -0,0 +1,239 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/prctl.h>
#include <stdbool.h>
#include <errno.h>
#include <unistd.h>
#define KERNEL_SU_OPTION 0xDEADBEEF
#define CMD_SUSFS_SHOW_VERSION 0x555e1
#define CMD_SUSFS_SHOW_ENABLED_FEATURES 0x555e2
#define CMD_SUSFS_SHOW_VARIANT 0x555e3
#define CMD_SUSFS_SHOW_SUS_SU_WORKING_MODE 0x555e4
#define CMD_SUSFS_IS_SUS_SU_READY 0x555f0
#define CMD_SUSFS_SUS_SU 0x60000
#define SUS_SU_DISABLED 0
#define SUS_SU_WITH_HOOKS 2
struct st_sus_su {
int mode;
};
int enable_sus_su(int last_working_mode, int target_working_mode) {
struct st_sus_su info;
int error = -1;
if (target_working_mode == SUS_SU_WITH_HOOKS) {
info.mode = SUS_SU_WITH_HOOKS;
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SUS_SU, &info, NULL, &error);
if (error) {
if (error == 1) {
} else if (error == 2) {
}
return error;
}
printf("[+] sus_su mode 2 is enabled\n");
} else if (target_working_mode == SUS_SU_DISABLED) {
info.mode = SUS_SU_DISABLED;
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SUS_SU, &info, NULL, &error);
if (error) {
if (error == 1) {
}
return error;
}
printf("[+] sus_su mode 0 is enabled\n");
} else {
return 1;
}
return 0;
}
int main(int argc, char *argv[]) {
int error = -1;
char support[16];
char version[16];
char variant[16];
// Check for arguments
if (argc < 2) {
fprintf(stderr, "Usage: %s <support|version|variant|features|sus_su <0|2|mode>|>\n", argv[0]);
return 1;
}
if (strcmp(argv[1], "version") == 0) {
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SHOW_VERSION, version, NULL, &error);
if (!error) {
printf("%s\n", version);
} else {
printf("Invalid\n");
}
} else if (strcmp(argv[1], "variant") == 0) {
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SHOW_VARIANT, variant, NULL, &error);
if (!error) {
printf("%s\n", variant);
} else {
printf("Invalid\n");
}
} else if (strcmp(argv[1], "features") == 0) {
char *enabled_features_buf = malloc(getpagesize() * 2);
char *ptr_buf;
unsigned long enabled_features;
int str_len;
if (!enabled_features_buf) {
perror("malloc");
return -ENOMEM;
}
ptr_buf = enabled_features_buf;
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SHOW_ENABLED_FEATURES, &enabled_features, NULL, &error);
if (!error) {
if (enabled_features & (1 << 0)) {
str_len = strlen("CONFIG_KSU_SUSFS_SUS_PATH\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SUS_PATH\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 1)) {
str_len = strlen("CONFIG_KSU_SUSFS_SUS_MOUNT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SUS_MOUNT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 2)) {
str_len = strlen("CONFIG_KSU_SUSFS_AUTO_ADD_SUS_KSU_DEFAULT_MOUNT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_AUTO_ADD_SUS_KSU_DEFAULT_MOUNT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 3)) {
str_len = strlen("CONFIG_KSU_SUSFS_AUTO_ADD_SUS_BIND_MOUNT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_AUTO_ADD_SUS_BIND_MOUNT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 4)) {
str_len = strlen("CONFIG_KSU_SUSFS_SUS_KSTAT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SUS_KSTAT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 5)) {
str_len = strlen("CONFIG_KSU_SUSFS_SUS_OVERLAYFS\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SUS_OVERLAYFS\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 6)) {
str_len = strlen("CONFIG_KSU_SUSFS_TRY_UMOUNT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_TRY_UMOUNT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 7)) {
str_len = strlen("CONFIG_KSU_SUSFS_AUTO_ADD_TRY_UMOUNT_FOR_BIND_MOUNT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_AUTO_ADD_TRY_UMOUNT_FOR_BIND_MOUNT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 8)) {
str_len = strlen("CONFIG_KSU_SUSFS_SPOOF_UNAME\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SPOOF_UNAME\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 9)) {
str_len = strlen("CONFIG_KSU_SUSFS_ENABLE_LOG\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_ENABLE_LOG\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 10)) {
str_len = strlen("CONFIG_KSU_SUSFS_HIDE_KSU_SUSFS_SYMBOLS\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_HIDE_KSU_SUSFS_SYMBOLS\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 11)) {
str_len = strlen("CONFIG_KSU_SUSFS_SPOOF_BOOTCONFIG\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SPOOF_BOOTCONFIG\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 12)) {
str_len = strlen("CONFIG_KSU_SUSFS_OPEN_REDIRECT\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_OPEN_REDIRECT\n", str_len);
ptr_buf += str_len;
}
if (enabled_features & (1 << 13)) {
str_len = strlen("CONFIG_KSU_SUSFS_SUS_SU\n");
strncpy(ptr_buf, "CONFIG_KSU_SUSFS_SUS_SU\n", str_len);
ptr_buf += str_len;
}
printf("%s", enabled_features_buf);
free(enabled_features_buf);
} else {
printf("Invalid\n");
}
} else if (strcmp(argv[1], "support") == 0) {
unsigned long enabled_features;
int any_feature_enabled = 0;
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SHOW_ENABLED_FEATURES, &enabled_features, NULL, &error);
if (!error) {
if (enabled_features & ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
(1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) |
(1 << 8) | (1 << 9) | (1 << 10) | (1 << 11) |
(1 << 12) | (1 << 13))) {
any_feature_enabled = 1;
}
if (any_feature_enabled) {
printf("Supported\n");
} else {
printf("Unsupported\n");
}
} else {
printf("Unsupported\n");
}
} else if (argc == 3 && !strcmp(argv[1], "sus_su")) {
int last_working_mode = 0;
int target_working_mode;
char* endptr;
prctl(KERNEL_SU_OPTION, CMD_SUSFS_SHOW_SUS_SU_WORKING_MODE, &last_working_mode, NULL, &error);
if (error)
return error;
if (!strcmp(argv[2], "mode")) {
printf("%d\n", last_working_mode);
return 0;
}
target_working_mode = strtol(argv[2], &endptr, 10);
if (*endptr != '\0') {
return 1;
}
if (target_working_mode == SUS_SU_WITH_HOOKS) {
bool is_sus_su_ready;
prctl(KERNEL_SU_OPTION, CMD_SUSFS_IS_SUS_SU_READY, &is_sus_su_ready, NULL, &error);
if (error)
return error;
if (!is_sus_su_ready) {
printf("[-] sus_su mode %d has to be run during or after service stage\n", SUS_SU_WITH_HOOKS);
return 1;
}
if (last_working_mode == SUS_SU_DISABLED) {
error = enable_sus_su(last_working_mode, SUS_SU_WITH_HOOKS);
} else if (last_working_mode == SUS_SU_WITH_HOOKS) {
printf("[-] sus_su is already in mode %d\n", last_working_mode);
return 1;
} else {
error = enable_sus_su(last_working_mode, SUS_SU_DISABLED);
if (!error)
error = enable_sus_su(last_working_mode, SUS_SU_WITH_HOOKS);
}
} else if (target_working_mode == SUS_SU_DISABLED) {
if (last_working_mode == SUS_SU_DISABLED) {
printf("[-] sus_su is already in mode %d\n", last_working_mode);
return 1;
}
error = enable_sus_su(last_working_mode, SUS_SU_DISABLED);
}
} else {
fprintf(stderr, "Invalid argument: %s\n", argv[1]);
return 1;
}
return 0;
}