Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  *   fs/cifs/ioctl.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *   vfs operations that deal with io control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *   Copyright (C) International Business Machines  Corp., 2005,2013
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *   Author(s): Steve French (sfrench@us.ibm.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *   This library is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *   it under the terms of the GNU Lesser General Public License as published
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *   by the Free Software Foundation; either version 2.1 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *   (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  *   This library is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  *   the GNU Lesser General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  *   You should have received a copy of the GNU Lesser General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *   along with this library; if not, write to the Free Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/mount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/pagemap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #include "cifspdu.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include "cifsglob.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #include "cifsproto.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #include "cifs_debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #include "cifsfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #include "cifs_ioctl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #include "smb2proto.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #include <linux/btrfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) static long cifs_ioctl_query_info(unsigned int xid, struct file *filep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 				  unsigned long p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	struct inode *inode = file_inode(filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	struct dentry *dentry = filep->f_path.dentry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	unsigned char *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	__le16 *utf16_path = NULL, root_path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	path = build_path_from_dentry(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	if (path == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	cifs_dbg(FYI, "%s %s\n", __func__, path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	if (!path[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		root_path = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		utf16_path = &root_path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		utf16_path = cifs_convert_path_to_utf16(path + 1, cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		if (!utf16_path) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 			rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 			goto ici_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	if (tcon->ses->server->ops->ioctl_query_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		rc = tcon->ses->server->ops->ioctl_query_info(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 				xid, tcon, cifs_sb, utf16_path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 				filep->private_data ? 0 : 1, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)  ici_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	if (utf16_path != &root_path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		kfree(utf16_path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	kfree(path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) static long cifs_ioctl_copychunk(unsigned int xid, struct file *dst_file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 			unsigned long srcfd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	struct fd src_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	struct inode *src_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	cifs_dbg(FYI, "ioctl copychunk range\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	/* the destination must be opened for writing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	if (!(dst_file->f_mode & FMODE_WRITE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		cifs_dbg(FYI, "file target not open for write\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	/* check if target volume is readonly and take reference */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	rc = mnt_want_write_file(dst_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		cifs_dbg(FYI, "mnt_want_write failed with rc %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	src_file = fdget(srcfd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	if (!src_file.file) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		rc = -EBADF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		goto out_drop_write;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		rc = -EBADF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		goto out_fput;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	src_inode = file_inode(src_file.file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	if (S_ISDIR(src_inode->i_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		goto out_fput;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	rc = cifs_file_copychunk_range(xid, src_file.file, 0, dst_file, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 					src_inode->i_size, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	if (rc > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) out_fput:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	fdput(src_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) out_drop_write:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	mnt_drop_write_file(dst_file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static long smb_mnt_get_fsinfo(unsigned int xid, struct cifs_tcon *tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 				void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	struct smb_mnt_fs_info *fsinf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	fsinf = kzalloc(sizeof(struct smb_mnt_fs_info), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	if (fsinf == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	fsinf->version = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	fsinf->protocol_id = tcon->ses->server->vals->protocol_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	fsinf->device_characteristics =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 			le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	fsinf->device_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	fsinf->fs_attributes = le32_to_cpu(tcon->fsAttrInfo.Attributes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	fsinf->max_path_component =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	fsinf->vol_serial_number = tcon->vol_serial_number;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	fsinf->vol_create_time = le64_to_cpu(tcon->vol_create_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	fsinf->share_flags = tcon->share_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	fsinf->share_caps = le32_to_cpu(tcon->capabilities);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	fsinf->sector_flags = tcon->ss_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	fsinf->optimal_sector_size = tcon->perf_sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	fsinf->max_bytes_chunk = tcon->max_bytes_chunk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	fsinf->maximal_access = tcon->maximal_access;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	fsinf->cifs_posix_caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (copy_to_user(arg, fsinf, sizeof(struct smb_mnt_fs_info)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	kfree(fsinf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	struct inode *inode = file_inode(filep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	struct smb3_key_debug_info pkey_inf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	int rc = -ENOTTY; /* strange error - but the precedent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	unsigned int xid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct cifsFileInfo *pSMBFile = filep->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct cifs_tcon *tcon;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	struct tcon_link *tlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	struct cifs_sb_info *cifs_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	__u64	ExtAttrBits = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	__u64   caps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	xid = get_xid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	cifs_dbg(FYI, "cifs ioctl 0x%x\n", command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	switch (command) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		case FS_IOC_GETFLAGS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			if (pSMBFile == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 			tcon = tlink_tcon(pSMBFile->tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #ifdef CONFIG_CIFS_POSIX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 			if (CIFS_UNIX_EXTATTR_CAP & caps) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 				__u64	ExtAttrMask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 				rc = CIFSGetExtAttr(xid, tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 						    pSMBFile->fid.netfid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 						    &ExtAttrBits, &ExtAttrMask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 				if (rc == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 					rc = put_user(ExtAttrBits &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 						FS_FL_USER_VISIBLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 						(int __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				if (rc != EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) #endif /* CONFIG_CIFS_POSIX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			if (CIFS_I(inode)->cifsAttrs & ATTR_COMPRESSED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 				/* add in the compressed bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 				ExtAttrBits = FS_COMPR_FL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 				rc = put_user(ExtAttrBits & FS_FL_USER_VISIBLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 					      (int __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		case FS_IOC_SETFLAGS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			if (pSMBFile == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 			tcon = tlink_tcon(pSMBFile->tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			if (get_user(ExtAttrBits, (int __user *)arg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 				rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			 * if (CIFS_UNIX_EXTATTR_CAP & caps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			 *	rc = CIFSSetExtAttr(xid, tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 			 *		       pSMBFile->fid.netfid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 			 *		       extAttrBits,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 			 *		       &ExtAttrMask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 			 * if (rc != EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 			 *	break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			/* Currently only flag we can set is compressed flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			if ((ExtAttrBits & FS_COMPR_FL) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 			/* Try to set compress flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 			if (tcon->ses->server->ops->set_compression) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 				rc = tcon->ses->server->ops->set_compression(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 							xid, tcon, pSMBFile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 				cifs_dbg(FYI, "set compress flag rc %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		case CIFS_IOC_COPYCHUNK_FILE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 			rc = cifs_ioctl_copychunk(xid, filep, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		case CIFS_QUERY_INFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 			rc = cifs_ioctl_query_info(xid, filep, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		case CIFS_IOC_SET_INTEGRITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 			if (pSMBFile == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 			tcon = tlink_tcon(pSMBFile->tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 			if (tcon->ses->server->ops->set_integrity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 				rc = tcon->ses->server->ops->set_integrity(xid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 						tcon, pSMBFile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 				rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		case CIFS_IOC_GET_MNT_INFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 			if (pSMBFile == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 			tcon = tlink_tcon(pSMBFile->tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		case CIFS_ENUMERATE_SNAPSHOTS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 			if (pSMBFile == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 			if (arg == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 				rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 				goto cifs_ioc_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 			tcon = tlink_tcon(pSMBFile->tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 			if (tcon->ses->server->ops->enum_snapshots)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 				rc = tcon->ses->server->ops->enum_snapshots(xid, tcon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 						pSMBFile, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 				rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		case CIFS_DUMP_KEY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 			if (pSMBFile == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 			if (!capable(CAP_SYS_ADMIN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 				rc = -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 			tcon = tlink_tcon(pSMBFile->tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 			if (!smb3_encryption_required(tcon)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 				rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			pkey_inf.cipher_type =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 				le16_to_cpu(tcon->ses->server->cipher_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 			pkey_inf.Suid = tcon->ses->Suid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 			memcpy(pkey_inf.auth_key, tcon->ses->auth_key.response,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 					16 /* SMB2_NTLMV2_SESSKEY_SIZE */);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 			memcpy(pkey_inf.smb3decryptionkey,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 			      tcon->ses->smb3decryptionkey, SMB3_SIGN_KEY_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 			memcpy(pkey_inf.smb3encryptionkey,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 			      tcon->ses->smb3encryptionkey, SMB3_SIGN_KEY_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 			if (copy_to_user((void __user *)arg, &pkey_inf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 					sizeof(struct smb3_key_debug_info)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 				rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 				rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		case CIFS_IOC_NOTIFY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 			if (!S_ISDIR(inode->i_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 				/* Notify can only be done on directories */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 				rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 			cifs_sb = CIFS_SB(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 			tlink = cifs_sb_tlink(cifs_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 			if (IS_ERR(tlink)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 				rc = PTR_ERR(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 			tcon = tlink_tcon(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 			if (tcon && tcon->ses->server->ops->notify) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 				rc = tcon->ses->server->ops->notify(xid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 						filep, (void __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 				cifs_dbg(FYI, "ioctl notify rc %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 			} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 				rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 			cifs_put_tlink(tlink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 			cifs_dbg(FYI, "unsupported ioctl\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) cifs_ioc_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	free_xid(xid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) }