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3ecad5de62
The CIFS FS_IOC_SETFLAGS path can set FS_COMPR_FL now, but it cannot clear it again. This can be reproduced on a share backed by a filesystem that supports compression, for example btrfs exported by Samba: [compress_share] vfs objects = btrfs $ touch test.bin $ chattr +c test.bin $ lsattr test.bin $ chattr -c test.bin The final chattr -c fails with EOPNOTSUPP, and leaves the remote object with the compressed attribute still set, because the client always sends FSCTL_SET_COMPRESSION with COMPRESSION_FORMAT_DEFAULT. That is correct for setting FS_COMPR_FL, but clearing FS_COMPR_FL requires sending COMPRESSION_FORMAT_NONE. Fix this by passing the requested compression state through the set_compression operation. The SMB1 and SMB2 helpers no longer hard-code COMPRESSION_FORMAT_DEFAULT. When FS_COMPR_FL is set, send COMPRESSION_FORMAT_DEFAULT. When it is cleared, send COMPRESSION_FORMAT_NONE. If the server accepts the request, update the cached FILE_ATTRIBUTE_COMPRESSED bit under i_lock so FS_IOC_GETFLAGS reports the new state. Signed-off-by: Huiwen He <hehuiwen@kylinos.cn> Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn> Signed-off-by: Steve French <stfrench@microsoft.com>
351 lines
14 KiB
C
351 lines
14 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 */
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/*
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*
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* Copyright (c) International Business Machines Corp., 2002,2008
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* Author(s): Steve French (sfrench@us.ibm.com)
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*
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*/
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#ifndef _SMB1PROTO_H
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#define _SMB1PROTO_H
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#include <linux/uidgid_types.h>
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#include <linux/unaligned.h>
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#include "../common/smb2pdu.h"
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#include "cifsglob.h"
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struct cifs_unix_set_info_args {
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__u64 ctime;
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__u64 atime;
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__u64 mtime;
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__u64 mode;
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kuid_t uid;
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kgid_t gid;
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dev_t device;
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};
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#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
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/*
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* cifssmb.c
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*/
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int small_smb_init_no_tc(const int smb_command, const int wct,
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struct cifs_ses *ses, void **request_buf);
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int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses,
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struct TCP_Server_Info *server);
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int CIFSTCon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
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struct cifs_tcon *tcon, const struct nls_table *nls_codepage);
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int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
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int CIFSSMBEcho(struct TCP_Server_Info *server);
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int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
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int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fileName, __u16 type,
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const struct nls_table *nls_codepage, int remap);
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int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
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const char *name, struct cifs_sb_info *cifs_sb,
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struct dentry *dentry);
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int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
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const char *name, struct cifs_sb_info *cifs_sb);
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int CIFSSMBMkDir(const unsigned int xid, struct inode *inode, umode_t mode,
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struct cifs_tcon *tcon, const char *name,
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struct cifs_sb_info *cifs_sb);
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int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
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__u32 posix_flags, __u64 mode, __u16 *netfid,
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FILE_UNIX_BASIC_INFO *pRetData, __u32 *pOplock,
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const char *name, const struct nls_table *nls_codepage,
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int remap);
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int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fileName, const int openDisposition,
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const int access_flags, const int create_options,
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__u16 *netfid, int *pOplock, FILE_ALL_INFO *pfile_info,
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const struct nls_table *nls_codepage, int remap);
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int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
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int *oplock, FILE_ALL_INFO *buf);
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int cifs_async_readv(struct cifs_io_subrequest *rdata);
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int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
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unsigned int *nbytes, char **buf, int *pbuf_type);
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int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
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unsigned int *nbytes, const char *buf);
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void cifs_async_writev(struct cifs_io_subrequest *wdata);
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int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
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unsigned int *nbytes, struct kvec *iov, int n_vec);
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int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
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const __u16 netfid, const __u8 lock_type,
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const __u32 num_unlock, const __u32 num_lock,
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LOCKING_ANDX_RANGE *buf);
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int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
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const __u16 smb_file_id, const __u32 netpid, const __u64 len,
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const __u64 offset, const __u32 numUnlock, const __u32 numLock,
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const __u8 lockType, const bool waitFlag,
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const __u8 oplock_level);
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int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
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const __u16 smb_file_id, const __u32 netpid,
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const loff_t start_offset, const __u64 len,
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struct file_lock *pLockData, const __u16 lock_type,
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const bool waitFlag);
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int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
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int smb_file_id);
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int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
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int smb_file_id);
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int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
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struct dentry *source_dentry, const char *from_name,
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const char *to_name, struct cifs_sb_info *cifs_sb);
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int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *pTcon,
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int netfid, const char *target_name,
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const struct nls_table *nls_codepage, int remap);
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int CIFSUnixCreateSymLink(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fromName, const char *toName,
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const struct nls_table *nls_codepage, int remap);
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int CIFSUnixCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fromName, const char *toName,
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const struct nls_table *nls_codepage, int remap);
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int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
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struct dentry *source_dentry, const char *from_name,
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const char *to_name, struct cifs_sb_info *cifs_sb);
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int CIFSSMBUnixQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
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const unsigned char *searchName,
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char **symlinkinfo,
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const struct nls_table *nls_codepage, int remap);
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int cifs_query_reparse_point(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifs_sb_info *cifs_sb,
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const char *full_path, u32 *tag, struct kvec *rsp,
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int *rsp_buftype);
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struct inode *cifs_create_reparse_inode(struct cifs_open_info_data *data,
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struct super_block *sb,
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const unsigned int xid,
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struct cifs_tcon *tcon,
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const char *full_path, bool directory,
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struct kvec *reparse_iov,
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struct kvec *xattr_iov);
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int CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
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__u16 fid, __u16 compression_state);
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int cifs_do_get_acl(const unsigned int xid, struct cifs_tcon *tcon,
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const unsigned char *searchName, struct posix_acl **acl,
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const int acl_type, const struct nls_table *nls_codepage,
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int remap);
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int cifs_do_set_acl(const unsigned int xid, struct cifs_tcon *tcon,
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const unsigned char *fileName, const struct posix_acl *acl,
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const int acl_type, const struct nls_table *nls_codepage,
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int remap);
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int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
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const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
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int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
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__u16 fid, struct smb_ntsd **acl_inf, __u32 *pbuflen,
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__u32 info);
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int CIFSSMBSetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
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__u16 fid, struct smb_ntsd *pntsd, __u32 acllen,
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int aclflag);
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int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
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const char *search_name, FILE_ALL_INFO *data,
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const struct nls_table *nls_codepage, int remap);
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int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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u16 netfid, FILE_ALL_INFO *pFindData);
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int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const char *search_name, FILE_ALL_INFO *data,
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int legacy /* old style infolevel */,
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const struct nls_table *nls_codepage, int remap);
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int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
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int CIFSSMBUnixQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const unsigned char *searchName,
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FILE_UNIX_BASIC_INFO *pFindData,
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const struct nls_table *nls_codepage, int remap);
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int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
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const char *searchName, struct cifs_sb_info *cifs_sb,
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__u16 *pnetfid, __u16 search_flags,
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struct cifs_search_info *psrch_inf, bool msearch);
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int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
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__u16 searchHandle, __u16 search_flags,
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struct cifs_search_info *psrch_inf);
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int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
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const __u16 searchHandle);
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int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
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const char *search_name, __u64 *inode_number,
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const struct nls_table *nls_codepage, int remap);
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int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
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const char *search_name,
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struct dfs_info3_param **target_nodes,
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unsigned int *num_of_nodes,
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const struct nls_table *nls_codepage, int remap);
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int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
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struct kstatfs *FSData);
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int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
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struct kstatfs *FSData);
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int CIFSSMBQFSAttributeInfo(const unsigned int xid, struct cifs_tcon *tcon);
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int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
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int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
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int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
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__u64 cap);
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int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
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struct kstatfs *FSData);
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int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
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const char *file_name, __u64 size,
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struct cifs_sb_info *cifs_sb, bool set_allocation,
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struct dentry *dentry);
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int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifsFileInfo *cfile, __u64 size,
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bool set_allocation);
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int SMBSetInformation(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fileName, __le32 attributes,
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__le64 write_time, const struct nls_table *nls_codepage,
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struct cifs_sb_info *cifs_sb);
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int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const FILE_BASIC_INFO *data, __u16 fid,
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__u32 pid_of_opener);
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int CIFSSMBSetFileDisposition(const unsigned int xid, struct cifs_tcon *tcon,
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bool delete_file, __u16 fid,
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__u32 pid_of_opener);
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int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fileName, const FILE_BASIC_INFO *data,
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const struct nls_table *nls_codepage,
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struct cifs_sb_info *cifs_sb);
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int CIFSSMBUnixSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const struct cifs_unix_set_info_args *args, u16 fid,
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u32 pid_of_opener);
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int CIFSSMBUnixSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const char *file_name,
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const struct cifs_unix_set_info_args *args,
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const struct nls_table *nls_codepage, int remap);
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ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
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const unsigned char *searchName,
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const unsigned char *ea_name, char *EAData,
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size_t buf_size, struct cifs_sb_info *cifs_sb);
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int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fileName, const char *ea_name,
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const void *ea_value, const __u16 ea_value_len,
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const struct nls_table *nls_codepage,
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struct cifs_sb_info *cifs_sb);
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/*
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* smb1debug.c
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*/
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void cifs_dump_detail(void *buf, size_t buf_len,
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struct TCP_Server_Info *server);
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/*
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* smb1encrypt.c
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*/
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int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
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__u32 *pexpected_response_sequence_number);
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int cifs_verify_signature(struct smb_rqst *rqst,
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struct TCP_Server_Info *server,
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__u32 expected_sequence_number);
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/*
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* smb1maperror.c
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*/
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int map_smb_to_linux_error(char *buf, bool logErr);
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int smb1_init_maperror(void);
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int map_and_check_smb_error(struct TCP_Server_Info *server,
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struct mid_q_entry *mid, bool logErr);
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#if IS_ENABLED(CONFIG_SMB1_KUNIT_TESTS)
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extern const struct ntstatus_to_dos_err *ntstatus_to_dos_map_test;
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extern unsigned int ntstatus_to_dos_num;
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const struct ntstatus_to_dos_err *
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search_ntstatus_to_dos_map_test(__u32 ntstatus);
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extern const struct smb_to_posix_error *mapping_table_ERRDOS_test;
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extern unsigned int mapping_table_ERRDOS_num;
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const struct smb_to_posix_error *
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search_mapping_table_ERRDOS_test(__u16 smb_err);
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extern const struct smb_to_posix_error *mapping_table_ERRSRV_test;
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extern unsigned int mapping_table_ERRSRV_num;
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const struct smb_to_posix_error *
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search_mapping_table_ERRSRV_test(__u16 smb_err);
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#endif
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/*
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* smb1misc.c
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*/
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unsigned int header_assemble(struct smb_hdr *buffer, char smb_command,
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const struct cifs_tcon *treeCon, int word_count);
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bool is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv);
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unsigned int smbCalcSize(void *buf);
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/*
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* smb1ops.c
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*/
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extern struct smb_version_operations smb1_operations;
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extern struct smb_version_values smb1_values;
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void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
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struct cifs_sb_info *cifs_sb,
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struct smb3_fs_context *ctx);
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/*
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* smb1session.c
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*/
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int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
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struct TCP_Server_Info *server,
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const struct nls_table *nls_cp);
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/*
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* smb1transport.c
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*/
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struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *server,
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struct smb_rqst *rqst);
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int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
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char *in_buf, unsigned int in_len, int flags);
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int cifs_check_receive(struct mid_q_entry *mid, struct TCP_Server_Info *server,
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bool log_error);
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struct mid_q_entry *cifs_setup_request(struct cifs_ses *ses,
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struct TCP_Server_Info *server,
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struct smb_rqst *rqst);
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int SendReceive2(const unsigned int xid, struct cifs_ses *ses,
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struct kvec *iov, int n_vec, int *resp_buf_type /* ret */,
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const int flags, struct kvec *resp_iov);
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int SendReceive(const unsigned int xid, struct cifs_ses *ses,
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struct smb_hdr *in_buf, unsigned int in_len,
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struct smb_hdr *out_buf, int *pbytes_returned,
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const int flags);
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bool cifs_check_trans2(struct mid_q_entry *mid, struct TCP_Server_Info *server,
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char *buf, int malformed);
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int checkSMB(char *buf, unsigned int pdu_len, unsigned int total_read,
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struct TCP_Server_Info *server);
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static inline __u16
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get_mid(const struct smb_hdr *smb)
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{
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return le16_to_cpu(smb->Mid);
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}
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static inline bool
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compare_mid(__u16 mid, const struct smb_hdr *smb)
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{
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return mid == le16_to_cpu(smb->Mid);
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}
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#define GETU16(var) (*((__u16 *)var)) /* BB check for endian issues */
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#define GETU32(var) (*((__u32 *)var)) /* BB check for endian issues */
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/* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
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static inline void *
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BCC(struct smb_hdr *smb)
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{
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return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
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}
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/* given a pointer to an smb_hdr retrieve the pointer to the byte area */
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#define pByteArea(smb_var) (BCC(smb_var) + 2)
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/* get the unconverted ByteCount for a SMB packet and return it */
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static inline __u16
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get_bcc(struct smb_hdr *hdr)
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{
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__le16 *bc_ptr = (__le16 *)BCC(hdr);
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return get_unaligned_le16(bc_ptr);
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}
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/* set the ByteCount for a SMB packet in little-endian */
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static inline void
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put_bcc(__u16 count, struct smb_hdr *hdr)
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{
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__le16 *bc_ptr = (__le16 *)BCC(hdr);
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put_unaligned_le16(count, bc_ptr);
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}
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#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
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#endif /* _SMB1PROTO_H */
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