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834170c859
Add ioctl to query previous versions of file Allows listing snapshots on files on SMB3 mounts. Signed-off-by: Steve French <smfrench@gmail.com>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
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* fs/cifs/cifs_ioctl.h
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*
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* Structure definitions for io control for cifs/smb3
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*
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* Copyright (c) 2015 Steve French <steve.french@primarydata.com>
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU Lesser General Public License for more details.
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*
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*/
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struct smb_mnt_fs_info {
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__u32 version; /* 0001 */
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__u16 protocol_id;
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__u16 tcon_flags;
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__u32 vol_serial_number;
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__u32 vol_create_time;
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__u32 share_caps;
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__u32 share_flags;
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__u32 sector_flags;
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__u32 optimal_sector_size;
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__u32 max_bytes_chunk;
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__u32 fs_attributes;
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__u32 max_path_component;
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__u32 device_type;
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__u32 device_characteristics;
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__u32 maximal_access;
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__u64 cifs_posix_caps;
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} __packed;
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struct smb_snapshot_array {
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__u32 number_of_snapshots;
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__u32 number_of_snapshots_returned;
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__u32 snapshot_array_size;
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/* snapshots[]; */
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} __packed;
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#define CIFS_IOCTL_MAGIC 0xCF
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#define CIFS_IOC_COPYCHUNK_FILE _IOW(CIFS_IOCTL_MAGIC, 3, int)
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#define CIFS_IOC_SET_INTEGRITY _IO(CIFS_IOCTL_MAGIC, 4)
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#define CIFS_IOC_GET_MNT_INFO _IOR(CIFS_IOCTL_MAGIC, 5, struct smb_mnt_fs_info)
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#define CIFS_ENUMERATE_SNAPSHOTS _IOR(CIFS_IOCTL_MAGIC, 6, struct smb_snapshot_array)
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