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kernel & ksud: Syncronize changes from upstreams

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This commit is contained in:
ShirkNeko
2025-11-08 21:56:32 +08:00
parent d22f1bdcc4
commit 25e5c0aacb
4 changed files with 86 additions and 95 deletions
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154
kernel/file_wrapper.c
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@@ -5,7 +5,9 @@
#include <linux/err.h> #include <linux/err.h>
#include <linux/file.h> #include <linux/file.h>
#include <linux/fs.h> #include <linux/fs.h>
#include <linux/poll.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/types.h>
#include <linux/uaccess.h> #include <linux/uaccess.h>
#include <linux/version.h> #include <linux/version.h>
@@ -20,18 +22,20 @@
#include "file_wrapper.h" #include "file_wrapper.h"
#ifdef KSU_NEED_POLL_T_DEF #ifdef KSU_NO___POLL_T
typedef unsigned __bitwise __poll_t; typedef unsigned int ksu_poll_t;
#else
typedef __poll_t ksu_poll_t;
#endif #endif
static loff_t mksu_wrapper_llseek(struct file *fp, loff_t off, int flags) static loff_t ksu_wrapper_llseek(struct file *fp, loff_t off, int flags)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
return orig->f_op->llseek(data->orig, off, flags); return orig->f_op->llseek(data->orig, off, flags);
} }
static ssize_t mksu_wrapper_read(struct file *fp, char __user *ptr, size_t sz, static ssize_t ksu_wrapper_read(struct file *fp, char __user *ptr, size_t sz,
loff_t *off) loff_t *off)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -39,7 +43,7 @@ static ssize_t mksu_wrapper_read(struct file *fp, char __user *ptr, size_t sz,
return orig->f_op->read(orig, ptr, sz, off); return orig->f_op->read(orig, ptr, sz, off);
} }
static ssize_t mksu_wrapper_write(struct file *fp, const char __user *ptr, static ssize_t ksu_wrapper_write(struct file *fp, const char __user *ptr,
size_t sz, loff_t *off) size_t sz, loff_t *off)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -48,7 +52,7 @@ static ssize_t mksu_wrapper_write(struct file *fp, const char __user *ptr,
} }
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0)
static ssize_t mksu_wrapper_read_iter(struct kiocb *iocb, struct iov_iter *iovi) static ssize_t ksu_wrapper_read_iter(struct kiocb *iocb, struct iov_iter *iovi)
{ {
struct ksu_file_wrapper *data = iocb->ki_filp->private_data; struct ksu_file_wrapper *data = iocb->ki_filp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -56,7 +60,7 @@ static ssize_t mksu_wrapper_read_iter(struct kiocb *iocb, struct iov_iter *iovi)
return orig->f_op->read_iter(iocb, iovi); return orig->f_op->read_iter(iocb, iovi);
} }
static ssize_t mksu_wrapper_write_iter(struct kiocb *iocb, static ssize_t ksu_wrapper_write_iter(struct kiocb *iocb,
struct iov_iter *iovi) struct iov_iter *iovi)
{ {
struct ksu_file_wrapper *data = iocb->ki_filp->private_data; struct ksu_file_wrapper *data = iocb->ki_filp->private_data;
@@ -67,7 +71,7 @@ static ssize_t mksu_wrapper_write_iter(struct kiocb *iocb,
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
static int mksu_wrapper_iopoll(struct kiocb *kiocb, struct io_comp_batch *icb, static int ksu_wrapper_iopoll(struct kiocb *kiocb, struct io_comp_batch *icb,
unsigned int v) unsigned int v)
{ {
struct ksu_file_wrapper *data = kiocb->ki_filp->private_data; struct ksu_file_wrapper *data = kiocb->ki_filp->private_data;
@@ -76,7 +80,7 @@ static int mksu_wrapper_iopoll(struct kiocb *kiocb, struct io_comp_batch *icb,
return orig->f_op->iopoll(kiocb, icb, v); return orig->f_op->iopoll(kiocb, icb, v);
} }
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0) #elif LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0)
static int mksu_wrapper_iopoll(struct kiocb *kiocb, bool spin) static int ksu_wrapper_iopoll(struct kiocb *kiocb, bool spin)
{ {
struct ksu_file_wrapper *data = kiocb->ki_filp->private_data; struct ksu_file_wrapper *data = kiocb->ki_filp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -86,7 +90,7 @@ static int mksu_wrapper_iopoll(struct kiocb *kiocb, bool spin)
#endif #endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0) #if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0)
static int mksu_wrapper_iterate(struct file *fp, struct dir_context *dc) static int ksu_wrapper_iterate(struct file *fp, struct dir_context *dc)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -95,7 +99,7 @@ static int mksu_wrapper_iterate(struct file *fp, struct dir_context *dc)
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
static int mksu_wrapper_iterate_shared(struct file *fp, struct dir_context *dc) static int ksu_wrapper_iterate_shared(struct file *fp, struct dir_context *dc)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -103,7 +107,7 @@ static int mksu_wrapper_iterate_shared(struct file *fp, struct dir_context *dc)
} }
#endif #endif
static __poll_t mksu_wrapper_poll(struct file *fp, static ksu_poll_t ksu_wrapper_poll(struct file *fp,
struct poll_table_struct *pts) struct poll_table_struct *pts)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -111,7 +115,7 @@ static __poll_t mksu_wrapper_poll(struct file *fp,
return orig->f_op->poll(orig, pts); return orig->f_op->poll(orig, pts);
} }
static long mksu_wrapper_unlocked_ioctl(struct file *fp, unsigned int cmd, static long ksu_wrapper_unlocked_ioctl(struct file *fp, unsigned int cmd,
unsigned long arg) unsigned long arg)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -119,7 +123,7 @@ static long mksu_wrapper_unlocked_ioctl(struct file *fp, unsigned int cmd,
return orig->f_op->unlocked_ioctl(orig, cmd, arg); return orig->f_op->unlocked_ioctl(orig, cmd, arg);
} }
static long mksu_wrapper_compat_ioctl(struct file *fp, unsigned int cmd, static long ksu_wrapper_compat_ioctl(struct file *fp, unsigned int cmd,
unsigned long arg) unsigned long arg)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -127,7 +131,7 @@ static long mksu_wrapper_compat_ioctl(struct file *fp, unsigned int cmd,
return orig->f_op->compat_ioctl(orig, cmd, arg); return orig->f_op->compat_ioctl(orig, cmd, arg);
} }
static int mksu_wrapper_mmap(struct file *fp, struct vm_area_struct *vma) static int ksu_wrapper_mmap(struct file *fp, struct vm_area_struct *vma)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -136,7 +140,7 @@ static int mksu_wrapper_mmap(struct file *fp, struct vm_area_struct *vma)
// static unsigned long mmap_supported_flags {} // static unsigned long mmap_supported_flags {}
static int mksu_wrapper_open(struct inode *ino, struct file *fp) static int ksu_wrapper_open(struct inode *ino, struct file *fp)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -144,14 +148,14 @@ static int mksu_wrapper_open(struct inode *ino, struct file *fp)
return orig->f_op->open(orig_ino, orig); return orig->f_op->open(orig_ino, orig);
} }
static int mksu_wrapper_flush(struct file *fp, fl_owner_t id) static int ksu_wrapper_flush(struct file *fp, fl_owner_t id)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
return orig->f_op->flush(orig, id); return orig->f_op->flush(orig, id);
} }
static int mksu_wrapper_fsync(struct file *fp, loff_t off1, loff_t off2, static int ksu_wrapper_fsync(struct file *fp, loff_t off1, loff_t off2,
int datasync) int datasync)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -159,14 +163,14 @@ static int mksu_wrapper_fsync(struct file *fp, loff_t off1, loff_t off2,
return orig->f_op->fsync(orig, off1, off2, datasync); return orig->f_op->fsync(orig, off1, off2, datasync);
} }
static int mksu_wrapper_fasync(int arg, struct file *fp, int arg2) static int ksu_wrapper_fasync(int arg, struct file *fp, int arg2)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
return orig->f_op->fasync(arg, orig, arg2); return orig->f_op->fasync(arg, orig, arg2);
} }
static int mksu_wrapper_lock(struct file *fp, int arg1, struct file_lock *fl) static int ksu_wrapper_lock(struct file *fp, int arg1, struct file_lock *fl)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -174,7 +178,7 @@ static int mksu_wrapper_lock(struct file *fp, int arg1, struct file_lock *fl)
} }
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0) #if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0)
static ssize_t mksu_wrapper_sendpage(struct file *fp, struct page *pg, int arg1, static ssize_t ksu_wrapper_sendpage(struct file *fp, struct page *pg, int arg1,
size_t sz, loff_t *off, int arg2) size_t sz, loff_t *off, int arg2)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -186,7 +190,7 @@ static ssize_t mksu_wrapper_sendpage(struct file *fp, struct page *pg, int arg1,
} }
#endif #endif
static unsigned long mksu_wrapper_get_unmapped_area(struct file *fp, static unsigned long ksu_wrapper_get_unmapped_area(struct file *fp,
unsigned long arg1, unsigned long arg1,
unsigned long arg2, unsigned long arg2,
unsigned long arg3, unsigned long arg3,
@@ -201,9 +205,9 @@ static unsigned long mksu_wrapper_get_unmapped_area(struct file *fp,
return -EINVAL; return -EINVAL;
} }
// static int mksu_wrapper_check_flags(int arg) {} // static int ksu_wrapper_check_flags(int arg) {}
static int mksu_wrapper_flock(struct file *fp, int arg1, struct file_lock *fl) static int ksu_wrapper_flock(struct file *fp, int arg1, struct file_lock *fl)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -213,7 +217,7 @@ static int mksu_wrapper_flock(struct file *fp, int arg1, struct file_lock *fl)
return -EINVAL; return -EINVAL;
} }
static ssize_t mksu_wrapper_splice_write(struct pipe_inode_info *pii, static ssize_t ksu_wrapper_splice_write(struct pipe_inode_info *pii,
struct file *fp, loff_t *off, struct file *fp, loff_t *off,
size_t sz, unsigned int arg1) size_t sz, unsigned int arg1)
{ {
@@ -225,7 +229,7 @@ static ssize_t mksu_wrapper_splice_write(struct pipe_inode_info *pii,
return -EINVAL; return -EINVAL;
} }
static ssize_t mksu_wrapper_splice_read(struct file *fp, loff_t *off, static ssize_t ksu_wrapper_splice_read(struct file *fp, loff_t *off,
struct pipe_inode_info *pii, size_t sz, struct pipe_inode_info *pii, size_t sz,
unsigned int arg1) unsigned int arg1)
{ {
@@ -238,7 +242,7 @@ static ssize_t mksu_wrapper_splice_read(struct file *fp, loff_t *off,
} }
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0)
void mksu_wrapper_splice_eof(struct file *fp) void ksu_wrapper_splice_eof(struct file *fp)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -249,7 +253,7 @@ void mksu_wrapper_splice_eof(struct file *fp)
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0)
static int mksu_wrapper_setlease(struct file *fp, int arg1, static int ksu_wrapper_setlease(struct file *fp, int arg1,
struct file_lease **fl, void **p) struct file_lease **fl, void **p)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -260,7 +264,7 @@ static int mksu_wrapper_setlease(struct file *fp, int arg1,
return -EINVAL; return -EINVAL;
} }
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0) #elif LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0)
static int mksu_wrapper_setlease(struct file *fp, int arg1, static int ksu_wrapper_setlease(struct file *fp, int arg1,
struct file_lock **fl, void **p) struct file_lock **fl, void **p)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -270,11 +274,9 @@ static int mksu_wrapper_setlease(struct file *fp, int arg1,
} }
return -EINVAL; return -EINVAL;
} }
#elif LINUX_VERSION_CODE >= \ // int (*setlease)(struct file *, long, struct file_lock **, void **);
KERNEL_VERSION( \ #elif LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)
3, 18, \ static int ksu_wrapper_setlease(struct file *fp, long arg1,
0) // int (*setlease)(struct file *, long, struct file_lock **, void **);
static int mksu_wrapper_setlease(struct file *fp, long arg1,
struct file_lock **fl, void **p) struct file_lock **fl, void **p)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -285,7 +287,7 @@ static int mksu_wrapper_setlease(struct file *fp, long arg1,
return -EINVAL; return -EINVAL;
} }
#else // int (*setlease)(struct file *, long, struct file_lock **); #else // int (*setlease)(struct file *, long, struct file_lock **);
static int mksu_wrapper_setlease(struct file *fp, long arg1, static int ksu_wrapper_setlease(struct file *fp, long arg1,
struct file_lock **fl) struct file_lock **fl)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -297,7 +299,7 @@ static int mksu_wrapper_setlease(struct file *fp, long arg1,
} }
#endif #endif
static long mksu_wrapper_fallocate(struct file *fp, int mode, loff_t offset, static long ksu_wrapper_fallocate(struct file *fp, int mode, loff_t offset,
loff_t len) loff_t len)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -309,7 +311,7 @@ static long mksu_wrapper_fallocate(struct file *fp, int mode, loff_t offset,
} }
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
static void mksu_wrapper_show_fdinfo(struct seq_file *m, struct file *f) static void ksu_wrapper_show_fdinfo(struct seq_file *m, struct file *f)
{ {
struct ksu_file_wrapper *data = m->file->private_data; struct ksu_file_wrapper *data = m->file->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -319,7 +321,7 @@ static void mksu_wrapper_show_fdinfo(struct seq_file *m, struct file *f)
} }
#else #else
static int mksu_wrapper_show_fdinfo(struct seq_file *m, struct file *f) static int ksu_wrapper_show_fdinfo(struct seq_file *m, struct file *f)
{ {
struct ksu_file_wrapper *data = m->file->private_data; struct ksu_file_wrapper *data = m->file->private_data;
struct file *orig = data->orig; struct file *orig = data->orig;
@@ -331,7 +333,7 @@ static int mksu_wrapper_show_fdinfo(struct seq_file *m, struct file *f)
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
static ssize_t mksu_wrapper_copy_file_range(struct file *f1, loff_t off1, static ssize_t ksu_wrapper_copy_file_range(struct file *f1, loff_t off1,
struct file *f2, loff_t off2, struct file *f2, loff_t off2,
size_t sz, unsigned int flags) size_t sz, unsigned int flags)
{ {
@@ -347,7 +349,7 @@ static ssize_t mksu_wrapper_copy_file_range(struct file *f1, loff_t off1,
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
static loff_t mksu_wrapper_remap_file_range(struct file *file_in, loff_t pos_in, static loff_t ksu_wrapper_remap_file_range(struct file *file_in, loff_t pos_in,
struct file *file_out, struct file *file_out,
loff_t pos_out, loff_t len, loff_t pos_out, loff_t len,
unsigned int remap_flags) unsigned int remap_flags)
@@ -364,7 +366,7 @@ static loff_t mksu_wrapper_remap_file_range(struct file *file_in, loff_t pos_in,
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0)
static int mksu_wrapper_fadvise(struct file *fp, loff_t off1, loff_t off2, static int ksu_wrapper_fadvise(struct file *fp, loff_t off1, loff_t off2,
int flags) int flags)
{ {
struct ksu_file_wrapper *data = fp->private_data; struct ksu_file_wrapper *data = fp->private_data;
@@ -376,13 +378,13 @@ static int mksu_wrapper_fadvise(struct file *fp, loff_t off1, loff_t off2,
} }
#endif #endif
static int mksu_wrapper_release(struct inode *inode, struct file *filp) static int ksu_wrapper_release(struct inode *inode, struct file *filp)
{ {
mksu_delete_file_wrapper(filp->private_data); ksu_delete_file_wrapper(filp->private_data);
return 0; return 0;
} }
struct ksu_file_wrapper *mksu_create_file_wrapper(struct file *fp) struct ksu_file_wrapper *ksu_create_file_wrapper(struct file *fp)
{ {
struct ksu_file_wrapper *p = struct ksu_file_wrapper *p =
kcalloc(sizeof(struct ksu_file_wrapper), 1, GFP_KERNEL); kcalloc(sizeof(struct ksu_file_wrapper), 1, GFP_KERNEL);
@@ -394,80 +396,80 @@ struct ksu_file_wrapper *mksu_create_file_wrapper(struct file *fp)
p->orig = fp; p->orig = fp;
p->ops.owner = THIS_MODULE; p->ops.owner = THIS_MODULE;
p->ops.llseek = fp->f_op->llseek ? mksu_wrapper_llseek : NULL; p->ops.llseek = fp->f_op->llseek ? ksu_wrapper_llseek : NULL;
p->ops.read = fp->f_op->read ? mksu_wrapper_read : NULL; p->ops.read = fp->f_op->read ? ksu_wrapper_read : NULL;
p->ops.write = fp->f_op->write ? mksu_wrapper_write : NULL; p->ops.write = fp->f_op->write ? ksu_wrapper_write : NULL;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0)
p->ops.read_iter = fp->f_op->read_iter ? mksu_wrapper_read_iter : NULL; p->ops.read_iter = fp->f_op->read_iter ? ksu_wrapper_read_iter : NULL;
p->ops.write_iter = p->ops.write_iter =
fp->f_op->write_iter ? mksu_wrapper_write_iter : NULL; fp->f_op->write_iter ? ksu_wrapper_write_iter : NULL;
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)
p->ops.iopoll = fp->f_op->iopoll ? mksu_wrapper_iopoll : NULL; p->ops.iopoll = fp->f_op->iopoll ? ksu_wrapper_iopoll : NULL;
#endif #endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0) #if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0)
p->ops.iterate = fp->f_op->iterate ? mksu_wrapper_iterate : NULL; p->ops.iterate = fp->f_op->iterate ? ksu_wrapper_iterate : NULL;
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
p->ops.iterate_shared = p->ops.iterate_shared =
fp->f_op->iterate_shared ? mksu_wrapper_iterate_shared : NULL; fp->f_op->iterate_shared ? ksu_wrapper_iterate_shared : NULL;
#endif #endif
p->ops.poll = fp->f_op->poll ? mksu_wrapper_poll : NULL; p->ops.poll = fp->f_op->poll ? ksu_wrapper_poll : NULL;
p->ops.unlocked_ioctl = p->ops.unlocked_ioctl =
fp->f_op->unlocked_ioctl ? mksu_wrapper_unlocked_ioctl : NULL; fp->f_op->unlocked_ioctl ? ksu_wrapper_unlocked_ioctl : NULL;
p->ops.compat_ioctl = p->ops.compat_ioctl =
fp->f_op->compat_ioctl ? mksu_wrapper_compat_ioctl : NULL; fp->f_op->compat_ioctl ? ksu_wrapper_compat_ioctl : NULL;
p->ops.mmap = fp->f_op->mmap ? mksu_wrapper_mmap : NULL; p->ops.mmap = fp->f_op->mmap ? ksu_wrapper_mmap : NULL;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0)
p->ops.fop_flags = fp->f_op->fop_flags; p->ops.fop_flags = fp->f_op->fop_flags;
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0) #elif LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0)
p->ops.mmap_supported_flags = fp->f_op->mmap_supported_flags; p->ops.mmap_supported_flags = fp->f_op->mmap_supported_flags;
#endif #endif
p->ops.open = fp->f_op->open ? mksu_wrapper_open : NULL; p->ops.open = fp->f_op->open ? ksu_wrapper_open : NULL;
p->ops.flush = fp->f_op->flush ? mksu_wrapper_flush : NULL; p->ops.flush = fp->f_op->flush ? ksu_wrapper_flush : NULL;
p->ops.release = mksu_wrapper_release; p->ops.release = ksu_wrapper_release;
p->ops.fsync = fp->f_op->fsync ? mksu_wrapper_fsync : NULL; p->ops.fsync = fp->f_op->fsync ? ksu_wrapper_fsync : NULL;
p->ops.fasync = fp->f_op->fasync ? mksu_wrapper_fasync : NULL; p->ops.fasync = fp->f_op->fasync ? ksu_wrapper_fasync : NULL;
p->ops.lock = fp->f_op->lock ? mksu_wrapper_lock : NULL; p->ops.lock = fp->f_op->lock ? ksu_wrapper_lock : NULL;
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0) #if LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0)
p->ops.sendpage = fp->f_op->sendpage ? mksu_wrapper_sendpage : NULL; p->ops.sendpage = fp->f_op->sendpage ? ksu_wrapper_sendpage : NULL;
#endif #endif
p->ops.get_unmapped_area = fp->f_op->get_unmapped_area ? p->ops.get_unmapped_area = fp->f_op->get_unmapped_area ?
mksu_wrapper_get_unmapped_area : ksu_wrapper_get_unmapped_area :
NULL; NULL;
p->ops.check_flags = fp->f_op->check_flags; p->ops.check_flags = fp->f_op->check_flags;
p->ops.flock = fp->f_op->flock ? mksu_wrapper_flock : NULL; p->ops.flock = fp->f_op->flock ? ksu_wrapper_flock : NULL;
p->ops.splice_write = p->ops.splice_write =
fp->f_op->splice_write ? mksu_wrapper_splice_write : NULL; fp->f_op->splice_write ? ksu_wrapper_splice_write : NULL;
p->ops.splice_read = p->ops.splice_read =
fp->f_op->splice_read ? mksu_wrapper_splice_read : NULL; fp->f_op->splice_read ? ksu_wrapper_splice_read : NULL;
p->ops.setlease = fp->f_op->setlease ? mksu_wrapper_setlease : NULL; p->ops.setlease = fp->f_op->setlease ? ksu_wrapper_setlease : NULL;
p->ops.fallocate = fp->f_op->fallocate ? mksu_wrapper_fallocate : NULL; p->ops.fallocate = fp->f_op->fallocate ? ksu_wrapper_fallocate : NULL;
p->ops.show_fdinfo = p->ops.show_fdinfo =
fp->f_op->show_fdinfo ? mksu_wrapper_show_fdinfo : NULL; fp->f_op->show_fdinfo ? ksu_wrapper_show_fdinfo : NULL;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
p->ops.copy_file_range = p->ops.copy_file_range =
fp->f_op->copy_file_range ? mksu_wrapper_copy_file_range : NULL; fp->f_op->copy_file_range ? ksu_wrapper_copy_file_range : NULL;
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
p->ops.remap_file_range = fp->f_op->remap_file_range ? p->ops.remap_file_range = fp->f_op->remap_file_range ?
mksu_wrapper_remap_file_range : ksu_wrapper_remap_file_range :
NULL; NULL;
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0)
p->ops.fadvise = fp->f_op->fadvise ? mksu_wrapper_fadvise : NULL; p->ops.fadvise = fp->f_op->fadvise ? ksu_wrapper_fadvise : NULL;
#endif #endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0) #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0)
p->ops.splice_eof = p->ops.splice_eof =
fp->f_op->splice_eof ? mksu_wrapper_splice_eof : NULL; fp->f_op->splice_eof ? ksu_wrapper_splice_eof : NULL;
#endif #endif
return p; return p;
} }
void mksu_delete_file_wrapper(struct ksu_file_wrapper *data) void ksu_delete_file_wrapper(struct ksu_file_wrapper *data)
{ {
fput((struct file *)data->orig); fput((struct file *)data->orig);
kfree(data); kfree(data);
} }

6
kernel/file_wrapper.h
View File

@@ -9,7 +9,7 @@ struct ksu_file_wrapper {
struct file_operations ops; struct file_operations ops;
}; };
struct ksu_file_wrapper *mksu_create_file_wrapper(struct file *fp); struct ksu_file_wrapper *ksu_create_file_wrapper(struct file *fp);
void mksu_delete_file_wrapper(struct ksu_file_wrapper *data); void ksu_delete_file_wrapper(struct ksu_file_wrapper *data);
#endif #endif

20
kernel/supercalls.c
View File

@@ -354,12 +354,13 @@ static int do_set_feature(void __user *arg)
return 0; return 0;
} }
static int __do_get_wrapper_fd(void __user *arg, const char *anon_name) static int do_get_wrapper_fd(void __user *arg)
{ {
if (!ksu_file_sid) { if (!ksu_file_sid) {
return -1; return -1;
} }
const char *anon_name = "[ksu_fdwrapper]";
struct ksu_get_wrapper_fd_cmd cmd; struct ksu_get_wrapper_fd_cmd cmd;
int ret; int ret;
@@ -373,7 +374,7 @@ static int __do_get_wrapper_fd(void __user *arg, const char *anon_name)
return -EBADF; return -EBADF;
} }
struct ksu_file_wrapper *data = mksu_create_file_wrapper(f); struct ksu_file_wrapper *data = ksu_create_file_wrapper(f);
if (data == NULL) { if (data == NULL) {
ret = -ENOMEM; ret = -ENOMEM;
goto put_orig_file; goto put_orig_file;
@@ -385,7 +386,7 @@ static int __do_get_wrapper_fd(void __user *arg, const char *anon_name)
#define getfd_secure anon_inode_getfd_secure #define getfd_secure anon_inode_getfd_secure
#endif #endif
#ifdef KSU_HAS_GETFD_SECURE #if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 12, 0) || defined(KSU_HAS_GETFD_SECURE)
ret = getfd_secure(anon_name, &data->ops, data, f->f_flags, NULL); ret = getfd_secure(anon_name, &data->ops, data, f->f_flags, NULL);
#else #else
ret = anon_inode_getfd(anon_name, &data->ops, data, f->f_flags); ret = anon_inode_getfd(anon_name, &data->ops, data, f->f_flags);
@@ -413,23 +414,13 @@ static int __do_get_wrapper_fd(void __user *arg, const char *anon_name)
goto put_orig_file; goto put_orig_file;
put_wrapper_data: put_wrapper_data:
mksu_delete_file_wrapper(data); ksu_delete_file_wrapper(data);
put_orig_file: put_orig_file:
fput(f); fput(f);
return ret; return ret;
} }
static int do_get_wrapper_fd_mksu(void __user *arg)
{
return __do_get_wrapper_fd(arg, "[mksu_fdwrapper]");
}
static int do_get_wrapper_fd(void __user *arg)
{
return __do_get_wrapper_fd(arg, "[ksu_fdwrapper]");
}
// 100. GET_FULL_VERSION - Get full version string // 100. GET_FULL_VERSION - Get full version string
static int do_get_full_version(void __user *arg) static int do_get_full_version(void __user *arg)
{ {
@@ -606,7 +597,6 @@ static const struct ksu_ioctl_cmd_map ksu_ioctl_handlers[] = {
{ .cmd = KSU_IOCTL_GET_FEATURE, .name = "GET_FEATURE", .handler = do_get_feature, .perm_check = manager_or_root }, { .cmd = KSU_IOCTL_GET_FEATURE, .name = "GET_FEATURE", .handler = do_get_feature, .perm_check = manager_or_root },
{ .cmd = KSU_IOCTL_SET_FEATURE, .name = "SET_FEATURE", .handler = do_set_feature, .perm_check = manager_or_root }, { .cmd = KSU_IOCTL_SET_FEATURE, .name = "SET_FEATURE", .handler = do_set_feature, .perm_check = manager_or_root },
{ .cmd = KSU_IOCTL_PROXY_FILE, .name = "PROXY_FILE", .handler = do_get_wrapper_fd, .perm_check = manager_or_root }, { .cmd = KSU_IOCTL_PROXY_FILE, .name = "PROXY_FILE", .handler = do_get_wrapper_fd, .perm_check = manager_or_root },
{ .cmd = KSU_IOCTL_GET_WRAPPER_FD, .name = "GET_WRAPPER_FD", .handler = do_get_wrapper_fd_mksu, .perm_check = manager_or_root },
{ .cmd = KSU_IOCTL_GET_FULL_VERSION,.name = "GET_FULL_VERSION", .handler = do_get_full_version, .perm_check = always_allow}, { .cmd = KSU_IOCTL_GET_FULL_VERSION,.name = "GET_FULL_VERSION", .handler = do_get_full_version, .perm_check = always_allow},
{ .cmd = KSU_IOCTL_HOOK_TYPE,.name = "GET_HOOK_TYPE", .handler = do_get_hook_type, .perm_check = manager_or_root}, { .cmd = KSU_IOCTL_HOOK_TYPE,.name = "GET_HOOK_TYPE", .handler = do_get_hook_type, .perm_check = manager_or_root},
{ .cmd = KSU_IOCTL_ENABLE_KPM, .name = "GET_ENABLE_KPM", .handler = do_enable_kpm, .perm_check = manager_or_root}, { .cmd = KSU_IOCTL_ENABLE_KPM, .name = "GET_ENABLE_KPM", .handler = do_enable_kpm, .perm_check = manager_or_root},

1
kernel/supercalls.h
View File

@@ -125,7 +125,6 @@ struct ksu_get_wrapper_fd_cmd {
#define KSU_IOCTL_GET_FEATURE _IOC(_IOC_READ|_IOC_WRITE, 'K', 13, 0) #define KSU_IOCTL_GET_FEATURE _IOC(_IOC_READ|_IOC_WRITE, 'K', 13, 0)
#define KSU_IOCTL_SET_FEATURE _IOC(_IOC_WRITE, 'K', 14, 0) #define KSU_IOCTL_SET_FEATURE _IOC(_IOC_WRITE, 'K', 14, 0)
#define KSU_IOCTL_PROXY_FILE _IOC(_IOC_NONE, 'K', 15, 0) #define KSU_IOCTL_PROXY_FILE _IOC(_IOC_NONE, 'K', 15, 0)
#define KSU_IOCTL_GET_WRAPPER_FD _IOC(_IOC_NONE, 'K', 10000, 0)
// Other IOCTL command definitions // Other IOCTL command definitions
#define KSU_IOCTL_GET_FULL_VERSION _IOC(_IOC_READ, 'K', 100, 0) #define KSU_IOCTL_GET_FULL_VERSION _IOC(_IOC_READ, 'K', 100, 0)
#define KSU_IOCTL_HOOK_TYPE _IOC(_IOC_READ, 'K', 101, 0) #define KSU_IOCTL_HOOK_TYPE _IOC(_IOC_READ, 'K', 101, 0)