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1219b14df98fbca0cd5bf12362e40d46425b2a64
kernel_xiaomi_sm8150/include/linux/susfs.h
sidex15 1219b14df9 fs: implement susfs v1.5.12 
- This is a heavily modified version of susfs v1.5.12
- It does not comply with the upstream offical susfs v1.5.12
- sus_mount functionality still remain in v1.5.5 as backporting it to the latest version will result a mount detection leak in some apps/detectors
- Increase susfs_open_redirect UID limit to <11000
- susfs magic mount support is still implemented and enabled
- sus_map is implemented and complied with the upstream v1.5.12 codebase

This commit requires a bunch of backports commits from v4.19 and v5.x to make sus_map working:

0a8cbf3725edbacc5f1ead33eeae7e4d78823b5a proc: less memory for /proc/*/map_files readdir
37ae2444584654f6785f2cc49181f05af788c9b2 mm: smaps: split PSS into components
49a5115e11350ee68f6a5fbd56b3e817bf9e5aac fs/task_mmu: add pkeys header
6f94042bed51121f8f28a5e572cda20c21fed2e1 mm/pkeys: Add an empty arch_pkeys_enabled()
bbd5aec12b32097a71dc6a0097194a18f3ee9a17 mm/pkeys, powerpc, x86: Provide an empty vma_pkey() in linux/pkeys.h
849ca8ce954d9dbb082dcf83c98af861e98e5635 mm: /proc/pid/smaps_rollup: convert to single value seq_file
6071a482c8e603be25895cc2cac5f0eab61c4051 mm: /proc/pid/smaps: factor out common stats printing
03fd2fbe9c40da8128cec5c69ef54755c0f38c6c mm: /proc/pid/smaps: factor out mem stats gathering
95f8be4c8a86a491a1c2ac9bfe470aef9e1baa8f mm: /proc/pid/*maps remove is_pid and related wrappers
27956d255e3b012372951dd6131e07c106d2daae procfs: add seq_put_hex_ll to speed up /proc/pid/maps
7f2847d02cdc4491b5ee6d4a0043854cbd6c7a1a proc: add seq_put_decimal_ull_width to speed up /proc/pid/smaps

For KernelSU side patches for this commit you need the sidex15's KernelSU-Next fork:
https://github.com/sidex15/KernelSU-Next/tree/n3x7g3n-kernel

Or if you want to patch on your own here's the commit patch of susfs in the KernelSU-Next:
13b1dfd6e2

Co-authored-by: simonpunk <simonpunk2016@gmail.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
2026-01-04 11:55:52 +05:30

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#ifndef KSU_SUSFS_H
#define KSU_SUSFS_H
#include <linux/version.h>
#include <linux/types.h>
#include <linux/utsname.h>
#include <linux/hashtable.h>
#include <linux/path.h>
#include <linux/susfs_def.h>
#define SUSFS_VERSION "v1.5.12"
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,0,0)
#define SUSFS_VARIANT "NON-GKI"
#else
#define SUSFS_VARIANT "GKI"
#endif
/*********/
/* MACRO */
/*********/
#define getname_safe(name) (name == NULL ? ERR_PTR(-EINVAL) : getname(name))
#define putname_safe(name) (IS_ERR(name) ? NULL : putname(name))
/**********/
/* STRUCT */
/**********/
/* sus_path */
#ifdef CONFIG_KSU_SUSFS_SUS_PATH
struct st_susfs_sus_path {
unsigned long target_ino;
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
unsigned int i_uid;
};
struct st_susfs_sus_path_list {
struct list_head list;
struct st_susfs_sus_path info;
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
size_t path_len;
};
struct st_android_data_path {
char pathname[SUSFS_MAX_LEN_PATHNAME];
bool is_inited;
};
struct st_sdcard_path {
char pathname[SUSFS_MAX_LEN_PATHNAME];
bool is_inited;
};
#endif
/* sus_mount */
#ifdef CONFIG_KSU_SUSFS_SUS_MOUNT
struct st_susfs_sus_mount {
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
unsigned long target_dev;
};
struct st_susfs_sus_mount_list {
struct list_head list;
struct st_susfs_sus_mount info;
};
#endif
/* sus_kstat */
#ifdef CONFIG_KSU_SUSFS_SUS_KSTAT
struct st_susfs_sus_kstat {
int is_statically;
unsigned long target_ino; // the ino after bind mounted or overlayed
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
unsigned long spoofed_ino;
unsigned long spoofed_dev;
unsigned int spoofed_nlink;
long long spoofed_size;
long spoofed_atime_tv_sec;
long spoofed_mtime_tv_sec;
long spoofed_ctime_tv_sec;
long spoofed_atime_tv_nsec;
long spoofed_mtime_tv_nsec;
long spoofed_ctime_tv_nsec;
unsigned long spoofed_blksize;
unsigned long long spoofed_blocks;
};
struct st_susfs_sus_kstat_hlist {
unsigned long target_ino;
struct st_susfs_sus_kstat info;
struct hlist_node node;
};
#endif
/* try_umount */
#ifdef CONFIG_KSU_SUSFS_TRY_UMOUNT
struct st_susfs_try_umount {
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
int mnt_mode;
};
struct st_susfs_try_umount_list {
struct list_head list;
struct st_susfs_try_umount info;
};
#endif
/* spoof_uname */
#ifdef CONFIG_KSU_SUSFS_SPOOF_UNAME
struct st_susfs_uname {
char release[__NEW_UTS_LEN+1];
char version[__NEW_UTS_LEN+1];
};
#endif
/* open_redirect */
#ifdef CONFIG_KSU_SUSFS_OPEN_REDIRECT
struct st_susfs_open_redirect {
unsigned long target_ino;
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
char redirected_pathname[SUSFS_MAX_LEN_PATHNAME];
};
struct st_susfs_open_redirect_hlist {
unsigned long target_ino;
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
char redirected_pathname[SUSFS_MAX_LEN_PATHNAME];
struct hlist_node node;
};
#endif
/* sus_su */
#ifdef CONFIG_KSU_SUSFS_SUS_SU
struct st_sus_su {
int mode;
};
#endif
/* sus_map */
#ifdef CONFIG_KSU_SUSFS_SUS_MAP
struct st_susfs_sus_map {
char target_pathname[SUSFS_MAX_LEN_PATHNAME];
};
#endif
/***********************/
/* FORWARD DECLARATION */
/***********************/
/* sus_path */
#ifdef CONFIG_KSU_SUSFS_SUS_PATH
int susfs_set_i_state_on_external_dir(char __user* user_info, int cmd);
int susfs_add_sus_path(struct st_susfs_sus_path* __user user_info);
#endif
/* sus_mount */
#ifdef CONFIG_KSU_SUSFS_SUS_MOUNT
int susfs_add_sus_mount(struct st_susfs_sus_mount* __user user_info);
#ifdef CONFIG_KSU_SUSFS_AUTO_ADD_SUS_BIND_MOUNT
int susfs_auto_add_sus_bind_mount(const char *pathname, struct path *path_target);
#endif // #ifdef CONFIG_KSU_SUSFS_AUTO_ADD_SUS_BIND_MOUNT
#ifdef CONFIG_KSU_SUSFS_AUTO_ADD_SUS_KSU_DEFAULT_MOUNT
void susfs_auto_add_sus_ksu_default_mount(const char __user *to_pathname);
#endif // #ifdef CONFIG_KSU_SUSFS_AUTO_ADD_SUS_KSU_DEFAULT_MOUNT
#endif // #ifdef CONFIG_KSU_SUSFS_SUS_MOUNT
/* sus_kstat */
#ifdef CONFIG_KSU_SUSFS_SUS_KSTAT
int susfs_add_sus_kstat(struct st_susfs_sus_kstat* __user user_info);
int susfs_update_sus_kstat(struct st_susfs_sus_kstat* __user user_info);
void susfs_sus_ino_for_generic_fillattr(unsigned long ino, struct kstat *stat);
void susfs_sus_ino_for_show_map_vma(unsigned long ino, dev_t *out_dev, unsigned long *out_ino);
#endif
/* try_umount */
#ifdef CONFIG_KSU_SUSFS_TRY_UMOUNT
int susfs_add_try_umount(struct st_susfs_try_umount* __user user_info);
void susfs_try_umount(uid_t target_uid);
#ifdef CONFIG_KSU_SUSFS_AUTO_ADD_TRY_UMOUNT_FOR_BIND_MOUNT
void susfs_auto_add_try_umount_for_bind_mount(struct path *path);
#endif // #ifdef CONFIG_KSU_SUSFS_AUTO_ADD_TRY_UMOUNT_FOR_BIND_MOUNT
#endif // #ifdef CONFIG_KSU_SUSFS_TRY_UMOUNT
/* spoof_uname */
#ifdef CONFIG_KSU_SUSFS_SPOOF_UNAME
int susfs_set_uname(struct st_susfs_uname* __user user_info);
void susfs_spoof_uname(struct new_utsname* tmp);
#endif
/* set_log */
#ifdef CONFIG_KSU_SUSFS_ENABLE_LOG
void susfs_set_log(bool enabled);
#endif
/* spoof_cmdline_or_bootconfig */
#ifdef CONFIG_KSU_SUSFS_SPOOF_CMDLINE_OR_BOOTCONFIG
int susfs_set_cmdline_or_bootconfig(char* __user user_fake_boot_config);
int susfs_spoof_cmdline_or_bootconfig(struct seq_file *m);
#endif
/* open_redirect */
#ifdef CONFIG_KSU_SUSFS_OPEN_REDIRECT
int susfs_add_open_redirect(struct st_susfs_open_redirect* __user user_info);
struct filename* susfs_get_redirected_path(unsigned long ino);
#endif
/* sus_su */
#ifdef CONFIG_KSU_SUSFS_SUS_SU
int susfs_get_sus_su_working_mode(void);
int susfs_sus_su(struct st_sus_su* __user user_info);
#endif
/* sus_map */
#ifdef CONFIG_KSU_SUSFS_SUS_MAP
int susfs_add_sus_map(struct st_susfs_sus_map* __user user_info);
#endif
int susfs_get_enabled_features(char __user* buf, size_t bufsize);
void susfs_set_avc_log_spoofing(bool enabled);
/* susfs_init */
void susfs_init(void);
#endif
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