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kernel: Add kernel compatibility for cmd_su

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ShirkNeko
2025-10-05 20:20:46 +08:00
parent 12e47663cd
commit c3b8c8601a
2 changed files with 16 additions and 3 deletions
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4
kernel/core_hook.c
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@@ -1774,7 +1774,7 @@ int ksu_bprm_check(struct linux_binprm *bprm)
} }
#ifdef CONFIG_KSU_MANUAL_SU #if LINUX_VERSION_CODE > KERNEL_VERSION(4, 10, 0) && defined(CONFIG_KSU_MANUAL_SU)
static int ksu_task_alloc(struct task_struct *task, static int ksu_task_alloc(struct task_struct *task,
unsigned long clone_flags) unsigned long clone_flags)
{ {
@@ -1801,7 +1801,7 @@ static struct security_hook_list ksu_hooks[] = {
LSM_HOOK_INIT(inode_rename, ksu_inode_rename), LSM_HOOK_INIT(inode_rename, ksu_inode_rename),
LSM_HOOK_INIT(task_fix_setuid, ksu_task_fix_setuid), LSM_HOOK_INIT(task_fix_setuid, ksu_task_fix_setuid),
LSM_HOOK_INIT(inode_permission, ksu_inode_permission), LSM_HOOK_INIT(inode_permission, ksu_inode_permission),
#ifdef CONFIG_KSU_MANUAL_SU #if LINUX_VERSION_CODE > KERNEL_VERSION(4, 10, 0) && defined(CONFIG_KSU_MANUAL_SU)
LSM_HOOK_INIT(task_alloc, ksu_task_alloc), LSM_HOOK_INIT(task_alloc, ksu_task_alloc),
#endif #endif
#ifndef CONFIG_KSU_KPROBES_HOOK #ifndef CONFIG_KSU_KPROBES_HOOK

13
kernel/manual_su.h
View File

@@ -3,6 +3,7 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/version.h>
#define KSU_SU_VERIFIED_BIT (1UL << 0) #define KSU_SU_VERIFIED_BIT (1UL << 0)
@@ -11,6 +12,17 @@ struct su_request_arg {
const char __user *user_password; const char __user *user_password;
}; };
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
static inline bool ksu_is_current_verified(void)
{
return ((unsigned long)(current->cred->security) & KSU_SU_VERIFIED_BIT) != 0;
}
static inline void ksu_mark_current_verified(void)
{
current->cred->security = (void *)((unsigned long)(current->cred->security) | KSU_SU_VERIFIED_BIT);
}
#else
static inline bool ksu_is_current_verified(void) static inline bool ksu_is_current_verified(void)
{ {
return ((unsigned long)(current->security) & KSU_SU_VERIFIED_BIT) != 0; return ((unsigned long)(current->security) & KSU_SU_VERIFIED_BIT) != 0;
@@ -20,6 +32,7 @@ static inline void ksu_mark_current_verified(void)
{ {
current->security = (void *)((unsigned long)(current->security) | KSU_SU_VERIFIED_BIT); current->security = (void *)((unsigned long)(current->security) | KSU_SU_VERIFIED_BIT);
} }
#endif
int ksu_manual_su_escalate(uid_t target_uid, pid_t target_pid, int ksu_manual_su_escalate(uid_t target_uid, pid_t target_pid,
const char __user *user_password); const char __user *user_password);