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manager: fix legacy get version

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Co-authored-by: weishu <twsxtd@gmail.com>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
This commit is contained in:
ShirkNeko
2025-11-03 12:09:00 +08:00
parent ab8e966b7f
commit 696c3059b6
4 changed files with 63 additions and 53 deletions
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66
manager/app/src/main/cpp/ksu.c
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@@ -2,7 +2,6 @@
// Created by weishu on 2022/12/9.
//
#include <sys/prctl.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
@@ -12,8 +11,6 @@
#include <stdlib.h>
#include <limits.h>
#include <sys/syscall.h>
#include "prelude.h"
#include "ksu.h"
@@ -27,34 +24,6 @@ extern const char* zako_file_verrcidx2str(uint8_t index);
#endif // __aarch64__ || _M_ARM64 || __arm__ || _M_ARM
#define KERNEL_SU_OPTION 0xDEADBEEF
#define CMD_GRANT_ROOT 0
#define CMD_BECOME_MANAGER 1
#define CMD_GET_VERSION 2
#define CMD_ALLOW_SU 3
#define CMD_DENY_SU 4
#define CMD_GET_SU_LIST 5
#define CMD_GET_DENY_LIST 6
#define CMD_CHECK_SAFEMODE 9
#define CMD_GET_APP_PROFILE 10
#define CMD_SET_APP_PROFILE 11
#define CMD_IS_UID_GRANTED_ROOT 12
#define CMD_IS_UID_SHOULD_UMOUNT 13
#define CMD_IS_SU_ENABLED 14
#define CMD_ENABLE_SU 15
#define CMD_GET_VERSION_FULL 0xC0FFEE1A
#define CMD_ENABLE_KPM 100
#define CMD_HOOK_TYPE 101
#define CMD_DYNAMIC_MANAGER 103
#define CMD_GET_MANAGERS 104
#define CMD_ENABLE_UID_SCANNER 105
static int fd = -1;
static inline int scan_driver_fd() {
@@ -107,12 +76,6 @@ static int ksuctl(unsigned long op, void* arg) {
return ioctl(fd, op, arg);
}
static bool ksuctl_prctl(int cmd, void* arg1, void* arg2) {
int32_t result = 0;
int32_t rtn = prctl(KERNEL_SU_OPTION, cmd, arg1, arg2, &result);
return result == KERNEL_SU_OPTION && rtn == -1;
}
static struct ksu_get_info_cmd g_version = {0};
struct ksu_get_info_cmd get_info() {
@@ -127,6 +90,14 @@ uint32_t get_version() {
return info.version;
}
struct ksu_version_info legacy_get_info()
{
int32_t version = -1;
int32_t flags = 0;
ksuctl_prctl(CMD_GET_VERSION, &version, &flags);
return (struct ksu_version_info){version, flags};
}
bool get_allow_list(struct ksu_get_allow_list_cmd *cmd) {
return ksuctl(KSU_IOCTL_GET_ALLOW_LIST, cmd) == 0;
}
@@ -138,13 +109,19 @@ bool is_safe_mode() {
}
bool is_lkm_mode() {
auto info = get_info();
return (info.flags & 0x1) != 0;
auto info = get_info();
if (info.version > 0) {
return (info.flags & 0x1) != 0;
}
return (legacy_get_info().flags & 0x1) != 0;
}
bool is_manager() {
auto info = get_info();
return (info.flags & 0x2) != 0;
auto info = get_info();
if (info.version > 0) {
return (info.flags & 0x2) != 0;
}
return legacy_get_info().version;
}
bool uid_should_umount(int uid) {
@@ -220,13 +197,6 @@ bool is_kernel_umount_enabled() {
return value != 0;
}
int legacy_get_version() {
int32_t version = -1;
int32_t flags = 0;
ksuctl_prctl(CMD_GET_VERSION, &version, &flags);
return version;
}
void get_full_version(char* buff) {
struct ksu_get_full_version_cmd cmd = {0};
if (ksuctl(KSU_IOCTL_GET_FULL_VERSION, &cmd) == 0) {