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-rw-r--r--fs/cifs/ioctl.c280
1 files changed, 0 insertions, 280 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
deleted file mode 100644
index 76ddd98b6298..000000000000
--- a/fs/cifs/ioctl.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * fs/cifs/ioctl.c
- *
- * vfs operations that deal with io control
- *
- * Copyright (C) International Business Machines Corp., 2005,2013
- * Author(s): Steve French (sfrench@us.ibm.com)
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/mount.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include "cifspdu.h"
-#include "cifsglob.h"
-#include "cifsproto.h"
-#include "cifs_debug.h"
-#include "cifsfs.h"
-#include "cifs_ioctl.h"
-#include "smb2proto.h"
-#include <linux/btrfs.h>
-
-static long cifs_ioctl_query_info(unsigned int xid, struct file *filep,
- unsigned long p)
-{
- struct inode *inode = file_inode(filep);
- struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
- struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
- struct dentry *dentry = filep->f_path.dentry;
- unsigned char *path;
- __le16 *utf16_path = NULL, root_path;
- int rc = 0;
-
- path = build_path_from_dentry(dentry);
- if (path == NULL)
- return -ENOMEM;
-
- cifs_dbg(FYI, "%s %s\n", __func__, path);
-
- if (!path[0]) {
- root_path = 0;
- utf16_path = &root_path;
- } else {
- utf16_path = cifs_convert_path_to_utf16(path + 1, cifs_sb);
- if (!utf16_path) {
- rc = -ENOMEM;
- goto ici_exit;
- }
- }
-
- if (tcon->ses->server->ops->ioctl_query_info)
- rc = tcon->ses->server->ops->ioctl_query_info(
- xid, tcon, utf16_path,
- filep->private_data ? 0 : 1, p);
- else
- rc = -EOPNOTSUPP;
-
- ici_exit:
- if (utf16_path != &root_path)
- kfree(utf16_path);
- kfree(path);
- return rc;
-}
-
-static long cifs_ioctl_copychunk(unsigned int xid, struct file *dst_file,
- unsigned long srcfd)
-{
- int rc;
- struct fd src_file;
- struct inode *src_inode;
-
- cifs_dbg(FYI, "ioctl copychunk range\n");
- /* the destination must be opened for writing */
- if (!(dst_file->f_mode & FMODE_WRITE)) {
- cifs_dbg(FYI, "file target not open for write\n");
- return -EINVAL;
- }
-
- /* check if target volume is readonly and take reference */
- rc = mnt_want_write_file(dst_file);
- if (rc) {
- cifs_dbg(FYI, "mnt_want_write failed with rc %d\n", rc);
- return rc;
- }
-
- src_file = fdget(srcfd);
- if (!src_file.file) {
- rc = -EBADF;
- goto out_drop_write;
- }
-
- if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
- rc = -EBADF;
- cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
- goto out_fput;
- }
-
- src_inode = file_inode(src_file.file);
- rc = -EINVAL;
- if (S_ISDIR(src_inode->i_mode))
- goto out_fput;
-
- rc = cifs_file_copychunk_range(xid, src_file.file, 0, dst_file, 0,
- src_inode->i_size, 0);
- if (rc > 0)
- rc = 0;
-out_fput:
- fdput(src_file);
-out_drop_write:
- mnt_drop_write_file(dst_file);
- return rc;
-}
-
-static long smb_mnt_get_fsinfo(unsigned int xid, struct cifs_tcon *tcon,
- void __user *arg)
-{
- int rc = 0;
- struct smb_mnt_fs_info *fsinf;
-
- fsinf = kzalloc(sizeof(struct smb_mnt_fs_info), GFP_KERNEL);
- if (fsinf == NULL)
- return -ENOMEM;
-
- fsinf->version = 1;
- fsinf->protocol_id = tcon->ses->server->vals->protocol_id;
- fsinf->device_characteristics =
- le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics);
- fsinf->device_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
- fsinf->fs_attributes = le32_to_cpu(tcon->fsAttrInfo.Attributes);
- fsinf->max_path_component =
- le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength);
- fsinf->vol_serial_number = tcon->vol_serial_number;
- fsinf->vol_create_time = le64_to_cpu(tcon->vol_create_time);
- fsinf->share_flags = tcon->share_flags;
- fsinf->share_caps = le32_to_cpu(tcon->capabilities);
- fsinf->sector_flags = tcon->ss_flags;
- fsinf->optimal_sector_size = tcon->perf_sector_size;
- fsinf->max_bytes_chunk = tcon->max_bytes_chunk;
- fsinf->maximal_access = tcon->maximal_access;
- fsinf->cifs_posix_caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
-
- if (copy_to_user(arg, fsinf, sizeof(struct smb_mnt_fs_info)))
- rc = -EFAULT;
-
- kfree(fsinf);
- return rc;
-}
-
-long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
-{
- struct inode *inode = file_inode(filep);
- int rc = -ENOTTY; /* strange error - but the precedent */
- unsigned int xid;
- struct cifsFileInfo *pSMBFile = filep->private_data;
- struct cifs_tcon *tcon;
- __u64 ExtAttrBits = 0;
- __u64 caps;
-
- xid = get_xid();
-
- cifs_dbg(FYI, "cifs ioctl 0x%x\n", command);
- switch (command) {
- case FS_IOC_GETFLAGS:
- if (pSMBFile == NULL)
- break;
- tcon = tlink_tcon(pSMBFile->tlink);
- caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
-#ifdef CONFIG_CIFS_POSIX
- if (CIFS_UNIX_EXTATTR_CAP & caps) {
- __u64 ExtAttrMask = 0;
- rc = CIFSGetExtAttr(xid, tcon,
- pSMBFile->fid.netfid,
- &ExtAttrBits, &ExtAttrMask);
- if (rc == 0)
- rc = put_user(ExtAttrBits &
- FS_FL_USER_VISIBLE,
- (int __user *)arg);
- if (rc != EOPNOTSUPP)
- break;
- }
-#endif /* CONFIG_CIFS_POSIX */
- rc = 0;
- if (CIFS_I(inode)->cifsAttrs & ATTR_COMPRESSED) {
- /* add in the compressed bit */
- ExtAttrBits = FS_COMPR_FL;
- rc = put_user(ExtAttrBits & FS_FL_USER_VISIBLE,
- (int __user *)arg);
- }
- break;
- case FS_IOC_SETFLAGS:
- if (pSMBFile == NULL)
- break;
- tcon = tlink_tcon(pSMBFile->tlink);
- caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
-
- if (get_user(ExtAttrBits, (int __user *)arg)) {
- rc = -EFAULT;
- break;
- }
-
- /*
- * if (CIFS_UNIX_EXTATTR_CAP & caps)
- * rc = CIFSSetExtAttr(xid, tcon,
- * pSMBFile->fid.netfid,
- * extAttrBits,
- * &ExtAttrMask);
- * if (rc != EOPNOTSUPP)
- * break;
- */
-
- /* Currently only flag we can set is compressed flag */
- if ((ExtAttrBits & FS_COMPR_FL) == 0)
- break;
-
- /* Try to set compress flag */
- if (tcon->ses->server->ops->set_compression) {
- rc = tcon->ses->server->ops->set_compression(
- xid, tcon, pSMBFile);
- cifs_dbg(FYI, "set compress flag rc %d\n", rc);
- }
- break;
- case CIFS_IOC_COPYCHUNK_FILE:
- rc = cifs_ioctl_copychunk(xid, filep, arg);
- break;
- case CIFS_QUERY_INFO:
- rc = cifs_ioctl_query_info(xid, filep, arg);
- break;
- case CIFS_IOC_SET_INTEGRITY:
- if (pSMBFile == NULL)
- break;
- tcon = tlink_tcon(pSMBFile->tlink);
- if (tcon->ses->server->ops->set_integrity)
- rc = tcon->ses->server->ops->set_integrity(xid,
- tcon, pSMBFile);
- else
- rc = -EOPNOTSUPP;
- break;
- case CIFS_IOC_GET_MNT_INFO:
- if (pSMBFile == NULL)
- break;
- tcon = tlink_tcon(pSMBFile->tlink);
- rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg);
- break;
- case CIFS_ENUMERATE_SNAPSHOTS:
- if (pSMBFile == NULL)
- break;
- if (arg == 0) {
- rc = -EINVAL;
- goto cifs_ioc_exit;
- }
- tcon = tlink_tcon(pSMBFile->tlink);
- if (tcon->ses->server->ops->enum_snapshots)
- rc = tcon->ses->server->ops->enum_snapshots(xid, tcon,
- pSMBFile, (void __user *)arg);
- else
- rc = -EOPNOTSUPP;
- break;
- default:
- cifs_dbg(FYI, "unsupported ioctl\n");
- break;
- }
-cifs_ioc_exit:
- free_xid(xid);
- return rc;
-}
generated by cgit (git 2.34.1) at 2025-12-24 23:29:29 +0000