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kernel, ksud: clean headers and add fd wrapper for devpts (#193)

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* Now Official KernelSU devpts compat is questionable
Squashed commits:
4893fad235
e7c3d4a6a6
4bb2dae3f5

Signed-off-by: Faris <rissu.ntk@gmail.com>
Co-authored-by: 5ec1cff <56485584+5ec1cff@users.noreply.github.com>
Co-authored-by: weishu <twsxtd@gmail.com>
Co-authored-by: backslashxx <118538522+backslashxx@users.noreply.github.com>
This commit is contained in:
Faris
2025-11-07 20:12:12 +07:00
committed by ShirkNeko
parent 968c3f7d57
commit 29c6e2dbcc
19 changed files with 700 additions and 272 deletions
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21
kernel/core_hook.c
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@@ -43,7 +43,7 @@
#include "kernel_compat.h"
#include "supercalls.h"
bool ksu_module_mounted = false;
bool ksu_module_mounted __read_mostly = false;
#ifndef DEVPTS_SUPER_MAGIC
#define DEVPTS_SUPER_MAGIC 0x1cd1
@@ -55,8 +55,6 @@ extern int __ksu_handle_devpts(struct inode *inode); // sucompat.c
bool ksu_is_compat __read_mostly = false;
#endif
extern int handle_sepolicy(unsigned long arg3, void __user *arg4);
static bool ksu_kernel_umount_enabled = true;
static int kernel_umount_feature_get(u64 *value)
@@ -360,7 +358,7 @@ static void ksu_do_umount_lists(void)
try_umount("/sbin", false, MNT_DETACH);
}
#if defined(MODULE) || defined(CONFIG_KSU_KPROBES_HOOK)
#if defined(MODULE) || defined(KSU_KPROBES_HOOK)
struct umount_tw {
struct callback_head cb;
const struct cred *old_cred;
@@ -438,7 +436,8 @@ int ksu_handle_setuid(struct cred *new, const struct cred *old)
spin_unlock_irq(&current->sighand->siglock);
if (ksu_get_manager_uid() == new_uid.val) {
pr_info("install fd for ksu manager(uid=%d)\n", new_uid.val);
pr_info("install fd for ksu manager(uid=%d)\n",
new_uid.val);
ksu_install_fd();
}
@@ -477,7 +476,7 @@ int ksu_handle_setuid(struct cred *new, const struct cred *old)
current->pid);
#endif
#if defined(MODULE) || defined(CONFIG_KSU_KPROBES_HOOK)
#if defined(MODULE) || defined(KSU_KPROBES_HOOK)
struct umount_tw *tw;
tw = kmalloc(sizeof(*tw), GFP_ATOMIC);
if (!tw)
@@ -568,9 +567,9 @@ int ksu_handle_sys_reboot(int magic1, int magic2, unsigned int cmd,
}
// -- For old kernel compat?
#if !defined(MODULE) && !defined(CONFIG_KSU_KPROBES_HOOK)
static int ksu_task_fix_setuid(struct cred *new,
const struct cred *old, int flags)
#if !defined(MODULE) && !defined(KSU_KPROBE_HOOK)
static int ksu_task_fix_setuid(struct cred *new, const struct cred *old,
int flags)
{
return ksu_handle_setuid(new, old);
}
@@ -598,7 +597,7 @@ static int ksu_key_permission(key_ref_t key_ref, const struct cred *cred,
static struct security_hook_list ksu_hooks[] = {
LSM_HOOK_INIT(task_fix_setuid, ksu_task_fix_setuid),
LSM_HOOK_INIT(inode_permission, ksu_inode_permission),
#ifndef CONFIG_KSU_KPROBES_HOOK
#ifndef KSU_KPROBES_HOOK
LSM_HOOK_INIT(bprm_check_security, ksu_bprm_check),
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0) || \
@@ -633,7 +632,7 @@ static void ksu_lsm_hook_init(void)
#endif
// -- For KPROBE and LKM handler
#if defined(MODULE) || defined(CONFIG_KSU_KPROBES_HOOK)
#if defined(MODULE) || defined(KSU_KPROBES_HOOK)
static int reboot_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
struct pt_regs *real_regs = PT_REAL_REGS(regs);