forked from Minki/linux
9a005bea4f
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmJGhDkACgkQiiy9cAdy T1EquQv/V05eD1EWZzW+Y5Q+cbYBPn8T3r6YqSw6hIvbgdF6W6U45UPyJ4ASHKvl +MvTPSJzEzSWKYfcDryUBsa7aAXaekPpxW6uZk7jMRuVIfkannTV9E+rZItwC/dS g8kDDjvcWrwN9iQUyVNX1JCybpq5YnwEIA5z0C8rpuCjDelNfK5DCaf02PweuRlY 3pDlj8Jy4sY8mBvqzFiWheY6Xc3pbvheDIvHEieaZpAyPwF7r1hmwvMDkzbJfPjV Qrwcrwq2FahK4E98gJQZ5U0CeXvNPEHPcc8c4bAkRpnaa/v2oVSCW4FGjhA1Stp2 0APC+AsjkY95DJ0GHerGfH5G0z6FAbRJjyXtt1NTkyKavEQZOqoQvi5yM/iXUEoA z+1bgN7s02IMLU15gLDilK6QObWtUwvNxuS19MQ80yFnqmjNNpSmRTfpwzDJQ6Lj B6Yml8tIvVPLtmuwehhljffMUv9lrdElDDjT50yTn/CTkQYUMBejitMGu8G4YwZI luAN1msJ =bNGL -----END PGP SIGNATURE----- Merge tag '5.18-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6 Pull more cifs updates from Steve French: - three fixes for big endian issues in how Persistent and Volatile file ids were stored - Various misc. fixes: including some for oops, 2 for ioctls, 1 for writeback - cleanup of how tcon (tree connection) status is tracked - Four changesets to move various duplicated protocol definitions (defined both in cifs.ko and ksmbd) into smbfs_common/smb2pdu.h - important performance improvement to use cached handles in some key compounding code paths (reduces numbers of opens/closes sent in some workloads) - fix to allow alternate DFS target to be used to retry on a failed i/o * tag '5.18-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix NULL ptr dereference in smb2_ioctl_query_info() cifs: prevent bad output lengths in smb2_ioctl_query_info() smb3: fix ksmbd bigendian bug in oplock break, and move its struct to smbfs_common smb3: cleanup and clarify status of tree connections smb3: move defines for query info and query fsinfo to smbfs_common smb3: move defines for ioctl protocol header and SMB2 sizes to smbfs_common [smb3] move more common protocol header definitions to smbfs_common cifs: fix incorrect use of list iterator after the loop ksmbd: store fids as opaque u64 integers cifs: fix bad fids sent over wire cifs: change smb2_query_info_compound to use a cached fid, if available cifs: convert the path to utf16 in smb2_query_info_compound cifs: writeback fix cifs: do not skip link targets when an I/O fails
531 lines
14 KiB
C
531 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org>
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* Copyright (C) 2018 Samsung Electronics Co., Ltd.
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*/
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#ifndef _SMB2PDU_H
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#define _SMB2PDU_H
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#include "ntlmssp.h"
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#include "smbacl.h"
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/*Create Action Flags*/
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#define FILE_SUPERSEDED 0x00000000
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#define FILE_OPENED 0x00000001
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#define FILE_CREATED 0x00000002
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#define FILE_OVERWRITTEN 0x00000003
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/* SMB2 Max Credits */
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#define SMB2_MAX_CREDITS 8192
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/* BB FIXME - analyze following length BB */
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#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
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#define SMB21_DEFAULT_IOSIZE (1024 * 1024)
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#define SMB3_DEFAULT_TRANS_SIZE (1024 * 1024)
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#define SMB3_MIN_IOSIZE (64 * 1024)
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#define SMB3_MAX_IOSIZE (8 * 1024 * 1024)
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/*
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* Definitions for SMB2 Protocol Data Units (network frames)
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*
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* See MS-SMB2.PDF specification for protocol details.
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* The Naming convention is the lower case version of the SMB2
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* command code name for the struct. Note that structures must be packed.
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*
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*/
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struct preauth_integrity_info {
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/* PreAuth integrity Hash ID */
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__le16 Preauth_HashId;
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/* PreAuth integrity Hash Value */
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__u8 Preauth_HashValue[SMB2_PREAUTH_HASH_SIZE];
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};
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/* offset is sizeof smb2_negotiate_rsp but rounded up to 8 bytes. */
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#ifdef CONFIG_SMB_SERVER_KERBEROS5
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/* sizeof(struct smb2_negotiate_rsp) =
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* header(64) + response(64) + GSS_LENGTH(96) + GSS_PADDING(0)
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*/
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#define OFFSET_OF_NEG_CONTEXT 0xe0
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#else
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/* sizeof(struct smb2_negotiate_rsp) =
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* header(64) + response(64) + GSS_LENGTH(74) + GSS_PADDING(6)
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*/
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#define OFFSET_OF_NEG_CONTEXT 0xd0
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#endif
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#define SMB2_SESSION_EXPIRED (0)
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#define SMB2_SESSION_IN_PROGRESS BIT(0)
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#define SMB2_SESSION_VALID BIT(1)
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struct create_durable_req_v2 {
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struct create_context ccontext;
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__u8 Name[8];
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__le32 Timeout;
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__le32 Flags;
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__u8 Reserved[8];
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__u8 CreateGuid[16];
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} __packed;
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struct create_durable_reconn_req {
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struct create_context ccontext;
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__u8 Name[8];
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union {
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__u8 Reserved[16];
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struct {
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__u64 PersistentFileId;
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__u64 VolatileFileId;
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} Fid;
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} Data;
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} __packed;
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struct create_durable_reconn_v2_req {
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struct create_context ccontext;
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__u8 Name[8];
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struct {
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__u64 PersistentFileId;
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__u64 VolatileFileId;
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} Fid;
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__u8 CreateGuid[16];
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__le32 Flags;
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} __packed;
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struct create_app_inst_id {
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struct create_context ccontext;
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__u8 Name[8];
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__u8 Reserved[8];
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__u8 AppInstanceId[16];
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} __packed;
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struct create_app_inst_id_vers {
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struct create_context ccontext;
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__u8 Name[8];
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__u8 Reserved[2];
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__u8 Padding[4];
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__le64 AppInstanceVersionHigh;
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__le64 AppInstanceVersionLow;
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} __packed;
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struct create_mxac_req {
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struct create_context ccontext;
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__u8 Name[8];
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__le64 Timestamp;
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} __packed;
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struct create_alloc_size_req {
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struct create_context ccontext;
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__u8 Name[8];
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__le64 AllocationSize;
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} __packed;
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struct create_durable_rsp {
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struct create_context ccontext;
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__u8 Name[8];
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union {
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__u8 Reserved[8];
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__u64 data;
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} Data;
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} __packed;
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struct create_durable_v2_rsp {
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struct create_context ccontext;
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__u8 Name[8];
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__le32 Timeout;
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__le32 Flags;
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} __packed;
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struct create_mxac_rsp {
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struct create_context ccontext;
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__u8 Name[8];
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__le32 QueryStatus;
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__le32 MaximalAccess;
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} __packed;
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struct create_disk_id_rsp {
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struct create_context ccontext;
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__u8 Name[8];
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__le64 DiskFileId;
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__le64 VolumeId;
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__u8 Reserved[16];
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} __packed;
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/* equivalent of the contents of SMB3.1.1 POSIX open context response */
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struct create_posix_rsp {
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struct create_context ccontext;
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__u8 Name[16];
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__le32 nlink;
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__le32 reparse_tag;
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__le32 mode;
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u8 SidBuffer[40];
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} __packed;
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struct smb2_buffer_desc_v1 {
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__le64 offset;
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__le32 token;
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__le32 length;
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} __packed;
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#define SMB2_0_IOCTL_IS_FSCTL 0x00000001
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struct smb_sockaddr_in {
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__be16 Port;
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__be32 IPv4address;
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__u8 Reserved[8];
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} __packed;
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struct smb_sockaddr_in6 {
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__be16 Port;
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__be32 FlowInfo;
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__u8 IPv6address[16];
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__be32 ScopeId;
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} __packed;
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#define INTERNETWORK 0x0002
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#define INTERNETWORKV6 0x0017
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struct sockaddr_storage_rsp {
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__le16 Family;
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union {
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struct smb_sockaddr_in addr4;
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struct smb_sockaddr_in6 addr6;
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};
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} __packed;
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#define RSS_CAPABLE 0x00000001
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#define RDMA_CAPABLE 0x00000002
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struct network_interface_info_ioctl_rsp {
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__le32 Next; /* next interface. zero if this is last one */
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__le32 IfIndex;
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__le32 Capability; /* RSS or RDMA Capable */
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__le32 Reserved;
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__le64 LinkSpeed;
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char SockAddr_Storage[128];
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} __packed;
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struct file_object_buf_type1_ioctl_rsp {
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__u8 ObjectId[16];
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__u8 BirthVolumeId[16];
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__u8 BirthObjectId[16];
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__u8 DomainId[16];
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} __packed;
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struct resume_key_ioctl_rsp {
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__u64 ResumeKey[3];
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__le32 ContextLength;
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__u8 Context[4]; /* ignored, Windows sets to 4 bytes of zero */
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} __packed;
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struct copychunk_ioctl_req {
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__le64 ResumeKey[3];
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__le32 ChunkCount;
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__le32 Reserved;
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__u8 Chunks[1]; /* array of srv_copychunk */
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} __packed;
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struct srv_copychunk {
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__le64 SourceOffset;
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__le64 TargetOffset;
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__le32 Length;
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__le32 Reserved;
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} __packed;
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struct copychunk_ioctl_rsp {
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__le32 ChunksWritten;
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__le32 ChunkBytesWritten;
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__le32 TotalBytesWritten;
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} __packed;
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struct file_sparse {
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__u8 SetSparse;
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} __packed;
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/* FILE Info response size */
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#define FILE_DIRECTORY_INFORMATION_SIZE 1
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#define FILE_FULL_DIRECTORY_INFORMATION_SIZE 2
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#define FILE_BOTH_DIRECTORY_INFORMATION_SIZE 3
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#define FILE_BASIC_INFORMATION_SIZE 40
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#define FILE_STANDARD_INFORMATION_SIZE 24
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#define FILE_INTERNAL_INFORMATION_SIZE 8
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#define FILE_EA_INFORMATION_SIZE 4
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#define FILE_ACCESS_INFORMATION_SIZE 4
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#define FILE_NAME_INFORMATION_SIZE 9
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#define FILE_RENAME_INFORMATION_SIZE 10
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#define FILE_LINK_INFORMATION_SIZE 11
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#define FILE_NAMES_INFORMATION_SIZE 12
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#define FILE_DISPOSITION_INFORMATION_SIZE 13
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#define FILE_POSITION_INFORMATION_SIZE 14
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#define FILE_FULL_EA_INFORMATION_SIZE 15
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#define FILE_MODE_INFORMATION_SIZE 4
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#define FILE_ALIGNMENT_INFORMATION_SIZE 4
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#define FILE_ALL_INFORMATION_SIZE 104
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#define FILE_ALLOCATION_INFORMATION_SIZE 19
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#define FILE_END_OF_FILE_INFORMATION_SIZE 20
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#define FILE_ALTERNATE_NAME_INFORMATION_SIZE 8
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#define FILE_STREAM_INFORMATION_SIZE 32
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#define FILE_PIPE_INFORMATION_SIZE 23
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#define FILE_PIPE_LOCAL_INFORMATION_SIZE 24
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#define FILE_PIPE_REMOTE_INFORMATION_SIZE 25
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#define FILE_MAILSLOT_QUERY_INFORMATION_SIZE 26
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#define FILE_MAILSLOT_SET_INFORMATION_SIZE 27
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#define FILE_COMPRESSION_INFORMATION_SIZE 16
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#define FILE_OBJECT_ID_INFORMATION_SIZE 29
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/* Number 30 not defined in documents */
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#define FILE_MOVE_CLUSTER_INFORMATION_SIZE 31
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#define FILE_QUOTA_INFORMATION_SIZE 32
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#define FILE_REPARSE_POINT_INFORMATION_SIZE 33
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#define FILE_NETWORK_OPEN_INFORMATION_SIZE 56
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#define FILE_ATTRIBUTE_TAG_INFORMATION_SIZE 8
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/* FS Info response size */
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#define FS_DEVICE_INFORMATION_SIZE 8
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#define FS_ATTRIBUTE_INFORMATION_SIZE 16
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#define FS_VOLUME_INFORMATION_SIZE 24
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#define FS_SIZE_INFORMATION_SIZE 24
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#define FS_FULL_SIZE_INFORMATION_SIZE 32
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#define FS_SECTOR_SIZE_INFORMATION_SIZE 28
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#define FS_OBJECT_ID_INFORMATION_SIZE 64
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#define FS_CONTROL_INFORMATION_SIZE 48
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#define FS_POSIX_INFORMATION_SIZE 56
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/* FS_ATTRIBUTE_File_System_Name */
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#define FS_TYPE_SUPPORT_SIZE 44
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struct fs_type_info {
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char *fs_name;
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long magic_number;
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} __packed;
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/*
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* PDU query infolevel structure definitions
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* BB consider moving to a different header
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*/
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struct smb2_file_access_info {
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__le32 AccessFlags;
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} __packed;
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struct smb2_file_alignment_info {
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__le32 AlignmentRequirement;
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} __packed;
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struct smb2_file_basic_info { /* data block encoding of response to level 18 */
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__le64 CreationTime; /* Beginning of FILE_BASIC_INFO equivalent */
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le32 Attributes;
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__u32 Pad1; /* End of FILE_BASIC_INFO_INFO equivalent */
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} __packed;
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struct smb2_file_alt_name_info {
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__le32 FileNameLength;
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char FileName[];
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} __packed;
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struct smb2_file_stream_info {
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__le32 NextEntryOffset;
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__le32 StreamNameLength;
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__le64 StreamSize;
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__le64 StreamAllocationSize;
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char StreamName[];
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} __packed;
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struct smb2_file_ntwrk_info {
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 AllocationSize;
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__le64 EndOfFile;
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__le32 Attributes;
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__le32 Reserved;
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} __packed;
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struct smb2_file_standard_info {
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__le64 AllocationSize;
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__le64 EndOfFile;
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__le32 NumberOfLinks; /* hard links */
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__u8 DeletePending;
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__u8 Directory;
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__le16 Reserved;
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} __packed; /* level 18 Query */
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struct smb2_file_ea_info {
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__le32 EASize;
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} __packed;
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struct smb2_file_alloc_info {
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__le64 AllocationSize;
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} __packed;
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struct smb2_file_disposition_info {
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__u8 DeletePending;
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} __packed;
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struct smb2_file_pos_info {
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__le64 CurrentByteOffset;
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} __packed;
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#define FILE_MODE_INFO_MASK cpu_to_le32(0x0000100e)
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struct smb2_file_mode_info {
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__le32 Mode;
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} __packed;
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#define COMPRESSION_FORMAT_NONE 0x0000
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#define COMPRESSION_FORMAT_LZNT1 0x0002
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struct smb2_file_comp_info {
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__le64 CompressedFileSize;
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__le16 CompressionFormat;
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__u8 CompressionUnitShift;
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__u8 ChunkShift;
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__u8 ClusterShift;
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__u8 Reserved[3];
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} __packed;
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struct smb2_file_attr_tag_info {
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__le32 FileAttributes;
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__le32 ReparseTag;
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} __packed;
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#define SL_RESTART_SCAN 0x00000001
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#define SL_RETURN_SINGLE_ENTRY 0x00000002
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#define SL_INDEX_SPECIFIED 0x00000004
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struct smb2_ea_info_req {
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__le32 NextEntryOffset;
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__u8 EaNameLength;
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char name[1];
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} __packed; /* level 15 Query */
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struct smb2_ea_info {
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__le32 NextEntryOffset;
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__u8 Flags;
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__u8 EaNameLength;
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__le16 EaValueLength;
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char name[1];
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/* optionally followed by value */
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} __packed; /* level 15 Query */
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struct create_ea_buf_req {
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struct create_context ccontext;
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__u8 Name[8];
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struct smb2_ea_info ea;
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} __packed;
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struct create_sd_buf_req {
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struct create_context ccontext;
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__u8 Name[8];
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struct smb_ntsd ntsd;
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} __packed;
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struct smb2_posix_info {
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__le32 NextEntryOffset;
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__u32 Ignored;
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 EndOfFile;
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__le64 AllocationSize;
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__le32 DosAttributes;
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__le64 Inode;
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__le32 DeviceId;
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__le32 Zero;
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/* beginning of POSIX Create Context Response */
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__le32 HardLinks;
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__le32 ReparseTag;
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__le32 Mode;
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u8 SidBuffer[40];
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__le32 name_len;
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u8 name[1];
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/*
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* var sized owner SID
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* var sized group SID
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* le32 filenamelength
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* u8 filename[]
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*/
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} __packed;
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|
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/* functions */
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void init_smb2_1_server(struct ksmbd_conn *conn);
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void init_smb3_0_server(struct ksmbd_conn *conn);
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void init_smb3_02_server(struct ksmbd_conn *conn);
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int init_smb3_11_server(struct ksmbd_conn *conn);
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void init_smb2_max_read_size(unsigned int sz);
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void init_smb2_max_write_size(unsigned int sz);
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void init_smb2_max_trans_size(unsigned int sz);
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void init_smb2_max_credits(unsigned int sz);
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bool is_smb2_neg_cmd(struct ksmbd_work *work);
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bool is_smb2_rsp(struct ksmbd_work *work);
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u16 get_smb2_cmd_val(struct ksmbd_work *work);
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void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err);
|
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int init_smb2_rsp_hdr(struct ksmbd_work *work);
|
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int smb2_allocate_rsp_buf(struct ksmbd_work *work);
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bool is_chained_smb2_message(struct ksmbd_work *work);
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int init_smb2_neg_rsp(struct ksmbd_work *work);
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void smb2_set_err_rsp(struct ksmbd_work *work);
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int smb2_check_user_session(struct ksmbd_work *work);
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int smb2_get_ksmbd_tcon(struct ksmbd_work *work);
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bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command);
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int smb2_check_sign_req(struct ksmbd_work *work);
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void smb2_set_sign_rsp(struct ksmbd_work *work);
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int smb3_check_sign_req(struct ksmbd_work *work);
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void smb3_set_sign_rsp(struct ksmbd_work *work);
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int find_matching_smb2_dialect(int start_index, __le16 *cli_dialects,
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__le16 dialects_count);
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struct file_lock *smb_flock_init(struct file *f);
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int setup_async_work(struct ksmbd_work *work, void (*fn)(void **),
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void **arg);
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void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status);
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struct channel *lookup_chann_list(struct ksmbd_session *sess,
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struct ksmbd_conn *conn);
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void smb3_preauth_hash_rsp(struct ksmbd_work *work);
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bool smb3_is_transform_hdr(void *buf);
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int smb3_decrypt_req(struct ksmbd_work *work);
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int smb3_encrypt_resp(struct ksmbd_work *work);
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bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work);
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int smb2_set_rsp_credits(struct ksmbd_work *work);
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/* smb2 misc functions */
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int ksmbd_smb2_check_message(struct ksmbd_work *work);
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/* smb2 command handlers */
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int smb2_handle_negotiate(struct ksmbd_work *work);
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int smb2_negotiate_request(struct ksmbd_work *work);
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int smb2_sess_setup(struct ksmbd_work *work);
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int smb2_tree_connect(struct ksmbd_work *work);
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int smb2_tree_disconnect(struct ksmbd_work *work);
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int smb2_session_logoff(struct ksmbd_work *work);
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int smb2_open(struct ksmbd_work *work);
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int smb2_query_info(struct ksmbd_work *work);
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int smb2_query_dir(struct ksmbd_work *work);
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int smb2_close(struct ksmbd_work *work);
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int smb2_echo(struct ksmbd_work *work);
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int smb2_set_info(struct ksmbd_work *work);
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int smb2_read(struct ksmbd_work *work);
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int smb2_write(struct ksmbd_work *work);
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int smb2_flush(struct ksmbd_work *work);
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int smb2_cancel(struct ksmbd_work *work);
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int smb2_lock(struct ksmbd_work *work);
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int smb2_ioctl(struct ksmbd_work *work);
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int smb2_oplock_break(struct ksmbd_work *work);
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int smb2_notify(struct ksmbd_work *ksmbd_work);
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/*
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* Get the body of the smb2 message excluding the 4 byte rfc1002 headers
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* from request/response buffer.
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*/
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static inline void *smb2_get_msg(void *buf)
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{
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return buf + 4;
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}
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#endif /* _SMB2PDU_H */
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