@@ -251,14 +251,14 @@ static const struct file_operations
cifs_debug_data_proc_fops = {
#ifdef CONFIG_CIFS_STATS
#ifdef CONFIG_CIFS_SMB2
-static void smb2_clear_stats(struct smb2_tcon *tcon)
+static void smb2_clear_stats(struct cifsTconInfo *tcon)
{
int i;
atomic_set(&tcon->num_smbs_sent, 0);
for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
- atomic_set(&tcon->stats->smb2_stats->smb2_com_sent[i], 0);
- atomic_set(&tcon->stats->smb2_stats->smb2_com_fail[i], 0);
+ atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
+ atomic_set(&tcon->stats.smb2_stats.smb2_com_fail[i], 0);
}
}
#endif /* CONFIG_CIFS_SMB2 */
@@ -268,8 +268,10 @@ static void clear_cifs_stats(struct cifsTconInfo *tcon)
atomic_set(&tcon->num_smbs_sent, 0);
#ifdef CONFIG_CIFS_SMB2
- if (tcon->ses->server->is_smb2)
- return smb2_clear_smb2_stats;
+ if (tcon->ses->server->is_smb2) {
+ smb2_clear_stats(tcon);
+ return;
+ }
#endif /* CONFIG_CIFS_SMB2 */
/* cifs specific statistics, not applicable to smb2 sessions */
@@ -27,6 +27,9 @@
#include "cifsacl.h"
#include <crypto/internal/hash.h>
#include <linux/scatterlist.h>
+#ifdef CONFIG_CIFS_SMB2
+#include "smb2glob.h"
+#endif /* CONFIG_CIFS_SMB2 */
/*
* The sizes of various internal tables and strings
@@ -223,9 +226,9 @@ struct TCP_Server_Info {
wait_queue_head_t read_q; /* used by readpages */
atomic_t active_readpage_req; /* used by readpages */
atomic_t resp_rdy; /* used by readpages and demultiplex */
- __le16 smb21_minor version; /* SMB2.0 implemented, but 2.1 recognized */
+ __le16 smb21_minor_version; /* SMB2.0 implemented, but 2.1 recognized */
struct task_struct *observe;
- char smb2_crypt_key[SMB2_CRYPTO_KEY_SIZE]; /* BB can we use cifs key */
+/* char smb2_crypt_key[SMB2_CRYPTO_KEY_SIZE]; BB can we use cifs key? */
__u64 current_smb2_mid; /* multiplex id - rotating counter */
__u8 speed; /* helps us identify if this is a slow link */
#endif /* CONFIG_CIFS_SMB2 */
@@ -1036,7 +1036,7 @@ cifs_parse_mount_options(char *options, const
char *devname,
} else if ((strnicmp(value, "smb2", 4) == 0) ||
(strnicmp(value, "2", 1) == 0)) {
#ifdef CONFIG_CIFS_SMB2
- use_smb2 = true;
+ vol->use_smb2 = true;
#else
cERROR(1, "smb2 support not enabled");
#endif /* CONFIG_CIFS_SMB2 */
new file mode 100644
@@ -0,0 +1,255 @@
+/*
+ * fs/smb2/smb2glob.h
+ *
+ * Definitions for various global variables and structures
+ *
+ * Copyright (C) International Business Machines Corp., 2002,2011
+ * Author(s): Steve French (sfrench@us.ibm.com)
+ * Jeremy Allison (jra@samba.org)
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ */
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/workqueue.h>
+#include "smb2pdu.h"
+
+/*
+ * The sizes of various internal tables and strings
+ */
+
+#define SMB2_MIN_RCV_POOL 4
+
+
+/*
+ *****************************************************************
+ * Except the SMB2 PDUs themselves all the
+ * globally interesting structs should go here
+ *****************************************************************
+ */
+
+#define SMB2_OBSERVE_CHECK_TIME 20
+#define SMB2_OBSERVE_DELETE_TIME 45
+
+/* Values for tcon->speed set by echo command */
+#define SMB2_ECHO_FAST 1 /* Less than 3 jiffies, 12ms */
+#define SMB2_ECHO_OK 2 /* Less than 15 jiffies, 60ms */
+#define SMB2_ECHO_SLOW 3 /* Less than 125 jiffies, 1/2 sec */
+#define SMB2_ECHO_VERY_SLOW 4 /* Less than 1000 jiffies, 4 seconds */
+#define SMB2_ECHO_TIMEOUT 5 /* Else Too long, server is sick ... */
+
+/*
+ * This info hangs off the smb2_file structure, pointed to by llist.
+ * This is used to track byte stream locks on the file
+ */
+struct smb2_lock {
+ struct list_head llist; /* pointer to next smb2_lock */
+ __u64 offset;
+ __u64 length;
+ __u32 flags;
+};
+
+/*
+ * One of these for each open instance of a file
+ */
+struct smb2_search {
+ loff_t index_of_last_entry;
+ __u16 entries_in_buf;
+ __u32 resume_key;
+ char *ntwrk_buf_start;
+ char *srch_entries_start;
+ char *last_entry;
+ char *presume_name;
+ unsigned int resume_name_len;
+ bool search_end:1;
+ bool empty_dir:1;
+ bool small_buf:1; /* so we know which buf_release function to call */
+};
+
+struct smb2_file {
+ struct list_head tlist; /* pointer to next fid owned by tcon */
+ struct list_head flist; /* next fid (file instance) for this inode */
+ unsigned int uid; /* allows finding which FileInfo structure */
+ __u32 pid; /* process id who opened file */
+ u64 persist_fid;
+ u64 volatile_fid;
+ /* BB add lock scope info here if needed */ ;
+ /* lock scope id (0 if none) */
+ struct dentry *dentry; /* needed for writepage and oplock break */
+ struct mutex lock_mutex;
+ struct list_head llist; /* list of byte range locks we have. */
+ unsigned int f_flags;
+ bool close_pend:1; /* file is marked to close */
+ bool invalid_handle:1; /* file closed via session abend */
+ bool message_mode:1; /* for pipes: message vs byte mode */
+ bool is_dir:1; /* Open directory rather than file */
+ bool oplock_break_cancelled:1;
+ atomic_t count; /* reference count */
+ atomic_t wrt_pending; /* handle in use - defer close */
+ struct work_struct oplock_break; /* work for oplock breaks */
+ struct mutex fh_mutex; /* prevents reopen race after dead ses*/
+ struct smb2_search srch_inf;
+};
+
+/*
+ * One of these for each file inode
+ */
+
+struct smb2_inode {
+ struct list_head lock_list;
+ /* BB add in lists for dirty pages i.e. write caching info for oplock */
+ struct list_head open_file_list;
+ int write_behind_rc;
+ __u32 dos_attrs; /* e.g. DOS archive bit, sparse, compressed, system */
+ __u32 ea_size;
+ unsigned long time; /* jiffies of last update/check of inode */
+ u64 server_eof; /* current file size on server */
+ bool can_cache_read:1; /* read oplock */
+ bool can_cache_all:1; /* read and writebehind oplock */
+ bool can_defer_close:1; /* batch oplock: as above but can defer close */
+ bool oplock_pending:1;
+ bool delete_pending:1; /* DELETE_ON_CLOSE is set */
+ u64 uniqueid; /* server inode number */
+ struct fscache_cookie *fscache;
+ struct inode vfs_inode;
+};
+
+static inline struct smb2_inode *
+SMB2_I(struct inode *inode)
+{
+ return container_of(inode, struct smb2_inode, vfs_inode);
+}
+
+
+static inline void smb2_file_get(struct smb2_file *smb2_file)
+{
+ atomic_inc(&smb2_file->count);
+}
+
+/* Release a reference on the file private data */
+/* BB see file.c cifsFileInfo_put MUSTFIX BB */
+static inline void smb2_file_put(struct smb2_file *smb2_file)
+{
+ if (atomic_dec_and_test(&smb2_file->count)) {
+ iput(smb2_file->dentry->d_inode);
+ kfree(smb2_file);
+ }
+}
+
+/* Represents a read request in page sized blocks.
+ * Used by smb2_readpages().*/
+struct page_req {
+ struct list_head req_node; /* list of page_req's */
+ struct list_head *page_list_index; /* list of pages */
+ struct address_space *mapping;
+ int num_pages;
+ int read_size;
+ int start_page_index; /* first expected index */
+ int end_page_index; /* last expected index */
+ struct mid_q_entry *midq; /* queue structure for demultiplex */
+};
+
+/* one of these for every pending SMB2 request to the server */
+struct smb2_mid_entry {
+ struct list_head qhead; /* mids waiting on reply from this server */
+ __u64 mid; /* multiplex id(s) */
+ __u16 pid; /* process id */
+ __u32 sequence_number; /* for signing */ /* BB check if needed */
+ unsigned long when_alloc; /* when mid was created */
+#ifdef CONFIG_CIFS_STATS2
+ unsigned long when_sent; /* time when smb send finished */
+ unsigned long when_received; /* when demux complete (taken off wire) */
+#endif
+ struct task_struct *tsk; /* task waiting for response */
+ struct smb2_hdr *resp_buf; /* response buffer */
+ char **pagebuf_list; /* response buffer */
+ int num_pages;
+ int mid_state; /* wish this were enum but can not pass to wait_event */
+ __le16 command; /* smb command code */
+ bool async_resp_rcvd:1; /* if server has responded with interim resp */
+ bool large_buf:1; /* if valid response, is pointer to large buf */
+ bool is_kmap_buf:1;
+/* bool multi_rsp:1; BB do we have to account for something in SMB2 like
+ we saw multiple trans2 responses for one request (possible in CIFS) */
+ /* Async things */
+ __u64 *mid_list; /* multiplex id(s) */
+ int *mid_state_list;
+ short int *large_buf_list;
+ unsigned int num_mid;
+ unsigned int act_num_mid;
+ unsigned int num_received;
+ unsigned int cur_id;
+ struct smb2_hdr **resp_buf_list; /* response buffer */
+ __le16 *command_list;
+ bool async:1;
+ bool complex_mid:1; /* complex entry - consists of several messages */
+ int result;
+ unsigned long last_rsp_time;
+ int (*callback)(struct smb2_mid_entry * , void *);
+ void *callback_data;
+};
+
+
+#define SMB2SEC_DEF (SMB2SEC_MAY_SIGN | SMB2SEC_MAY_NTLM |
SMB2SEC_MAY_NTLMV2)
+#define SMB2SEC_MAX (SMB2SEC_MUST_SIGN | SMB2SEC_MUST_NTLMV2)
+#define SMB2SEC_AUTH_MASK (SMB2SEC_MAY_NTLM | SMB2SEC_MAY_NTLMV2 | \
+ SMB2SEC_MAY_PLNTXT | SMB2SEC_MAY_KRB5)
+/*
+ *****************************************************************
+ * Constants go here
+ *****************************************************************
+ */
+
+
+/* BB since num credits could be negotiated higher, override with
max_pending */
+#define SMB2_MAX_REQ 256
+
+/* Identifiers for functions that use the open, operation, close pattern
+ * in inode.c:open_op_close() */
+#define SMB2_OP_SET_DELETE 1
+#define SMB2_OP_SET_INFO 2
+#define SMB2_OP_QUERY_INFO 3
+#define SMB2_OP_QUERY_DIR 4
+#define SMB2_OP_MKDIR 5
+#define SMB2_OP_RENAME 6
+
+/* Used when constructing chained read requests. */
+#define CHAINED_REQUEST 1
+#define START_OF_CHAIN 2
+#define END_OF_CHAIN 4
+#define RELATED_REQUEST 8
+
+/*
+ * The externs for various global variables put here. The actual declarations
+ * of these should be mostly placed at the front of smb2fs.c to be easy to spot
+ */
+
+
+/*
+ * Global counters, updated atomically
+ */
+extern atomic_t smb2_tcon_reconnect_count;
+
+/* Various Debug counters */
+extern atomic_t smb2_buf_alloc_count; /* current number allocated */
+#ifdef CONFIG_SMB2_STATS2
+extern atomic_t smb2_total_buf_alloc; /* total allocated over all time */
+extern atomic_t smb2_total_smbuf_alloc;
+#endif
+extern atomic_t smb2_smbuf_alloc_count;
+extern atomic_t smb2_mid_count;
+
+/* Misc globals */
+extern unsigned int SMB2_max_buf_size; /* max size not including hdr */
+extern unsigned int smb2_min_rcv; /* min size of big ntwrk buf pool */
+extern unsigned int smb2_min_small; /* min size of small buf pool */
+extern unsigned int smb2_max_pending; /* MAX requests at once to server*/
new file mode 100644
@@ -0,0 +1,996 @@
+/*
+ * fs/smb2/smb2pdu.h
+ *
+ * Copyright (c) International Business Machines Corp., 2009, 2010
+ * Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _SMB2PDU_H
+#define _SMB2PDU_H
+
+#include <net/sock.h>
+
+#define SMB2_PORT 445
+#define RFC1001_PORT 139
+
+/*
+ * Note that, due to trying to use names similar to the protocol
specifications,
+ * there are many mixed case field names in the structures below. Although
+ * this does not match typical Linux kernel style, it is necessary to be
+ * be able to match against the protocol specfication.
+ *
+ * SMB2 commands
+ * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
+ * (ie no useful data other than the SMB error code itself) and are marked such
+ * Knowing this helps avoid response buffer allocations and copy in some cases
+ */
+
+/* List is sent on wire as little endian */
+#define SMB2_NEGOTIATE cpu_to_le16(0x0000)
+#define SMB2_SESSION_SETUP cpu_to_le16(0x0001)
+#define SMB2_LOGOFF cpu_to_le16(0x0002) /* trivial request/resp */
+#define SMB2_TREE_CONNECT cpu_to_le16(0x0003)
+#define SMB2_TREE_DISCONNECT cpu_to_le16(0x0004) /* trivial req/resp */
+#define SMB2_CREATE cpu_to_le16(0x0005)
+#define SMB2_CLOSE cpu_to_le16(0x0006)
+#define SMB2_FLUSH cpu_to_le16(0x0007) /* trivial resp */
+#define SMB2_READ cpu_to_le16(0x0008)
+#define SMB2_WRITE cpu_to_le16(0x0009)
+#define SMB2_LOCK cpu_to_le16(0x000A)
+#define SMB2_IOCTL cpu_to_le16(0x000B)
+#define SMB2_CANCEL cpu_to_le16(0x000C)
+#define SMB2_ECHO cpu_to_le16(0x000D)
+#define SMB2_QUERY_DIRECTORY cpu_to_le16(0x000E)
+#define SMB2_CHANGE_NOTIFY cpu_to_le16(0x000F)
+#define SMB2_QUERY_INFO cpu_to_le16(0x0010)
+#define SMB2_SET_INFO cpu_to_le16(0x0011)
+#define SMB2_OPLOCK_BREAK cpu_to_le16(0x0012)
+
+/* Same List of commands in host endian */
+#define SMB2NEGOTIATE 0x0000
+#define SMB2SESSION_SETUP 0x0001
+#define SMB2LOGOFF 0x0002 /* trivial request/resp */
+#define SMB2TREE_CONNECT 0x0003
+#define SMB2TREE_DISCONNECT 0x0004 /* trivial req/resp */
+#define SMB2CREATE 0x0005
+#define SMB2CLOSE 0x0006
+#define SMB2FLUSH 0x0007 /* trivial resp */
+#define SMB2READ 0x0008
+#define SMB2WRITE 0x0009
+#define SMB2LOCK 0x000A
+#define SMB2IOCTL 0x000B
+#define SMB2CANCEL 0x000C
+#define SMB2ECHO 0x000D
+#define SMB2QUERY_DIRECTORY 0x000E
+#define SMB2CHANGE_NOTIFY 0x000F
+#define SMB2QUERY_INFO 0x0010
+#define SMB2SET_INFO 0x0011
+#define SMB2OPLOCK_BREAK 0x0012
+
+#define NUMBER_OF_SMB2_COMMANDS 0x0013
+
+/* BB FIXME - analyze following three length fields BB */
+#define MAX_SMB2_SMALL_BUFFER_SIZE 460 /* big enough for most */
+#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct
+ 2 pad */
+#define SMB2_SMALL_PATH 112 /* allows for one fewer than (460-120)/3 */
+
+/* File Attrubutes */
+
+#define FILE_ATTRIBUTE_READONLY 0x00000001
+#define FILE_ATTRIBUTE_HIDDEN 0x00000002
+#define FILE_ATTRIBUTE_SYSTEM 0x00000004
+#define FILE_ATTRIBUTE_DIRECTORY 0x00000010
+#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
+#define FILE_ATTRIBUTE_NORMAL 0x00000080
+#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
+#define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200
+#define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400
+#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
+#define FILE_ATTRIBUTE_OFFLINE 0x00001000
+#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000
+#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
+
+/*
+ * SMB2 flag definitions
+ */
+
+#define SMB2FLG_RESPONSE 0x0001 /* this PDU is a response from server */
+
+/*
+ * SMB2 Header Definition
+ *
+ * "MBZ" : Must be Zero
+ * "BB" : BugBug, Something to check/review/analyze later
+ * "PDU" : "Protocol Data Unit" (ie a network "frame")
+ *
+ */
+struct smb2_hdr {
+ __be32 smb2_buf_length; /* big endian on wire */
+ /* length is only two or three bytes - with
+ one or two byte type preceding it that MBZ */
+ __u8 ProtocolId[4]; /* 0xFE 'S' 'M' 'B' */
+ __le16 StructureSize; /* 64 */
+ __le16 CreditCharge; /* MBZ */
+ __le32 Status; /* Error from server */
+ __le16 Command;
+ __le16 CreditRequest; /* CreditResponse */
+ __le32 Flags;
+ __le32 NextCommand;
+ __u64 MessageId; /* opaque - so can stay little endian */
+ __le32 ProcessId;
+ __u32 TreeId; /* opaque - so do not make little endian */
+ __u64 SessionId; /* opaque - so do not make little endian */
+ __u8 Signature[16];
+ /* Usually followed by __le16 StructureSize of request or response
+ structure which follows */
+} __attribute__((packed));
+
+struct smb2_async_hdr {
+ __be32 smb2_buf_length; /* big endian on wire */
+ /* length is only two or three bytes - with
+ one or two byte type preceding it that MBZ */
+ __u8 ProtocolId[4]; /* 0xFE 'S' 'M' 'B' */
+ __le16 StructureSize; /* 64 */
+ __le16 CreditCharge; /* MBZ */
+ __le32 Status; /* Error from server */
+ __le16 Command;
+ __le16 CreditResponse;
+ __le32 Flags;
+ __le32 NextCommand;
+ __u64 MessageId; /* opaque - so can stay little endian */
+ __u64 AsyncId;
+ __u64 SessionId; /* opaque - so do not make little endian */
+ __u8 Signature[16];
+ /* Usually followed by __le16 StructureSize of request or response
+ structure which follows */
+} __attribute__((packed));
+
+struct smb2_pdu {
+ struct smb2_hdr hdr;
+ __le16 StructureSize2; /* size of wct area (varies, request specific) */
+} __attribute__((packed));
+
+/*
+ * SMB2 flag definitions
+ */
+#define SMB2_FLAGS_SERVER_TO_REDIR cpu_to_le32(0x00000001) /* Response */
+#define SMB2_FLAGS_ASYNC_COMMAND cpu_to_le32(0x00000002)
+#define SMB2_FLAGS_RELATED_OPERATIONS cpu_to_le32(0x00000004)
+#define SMB2_FLAGS_SIGNED cpu_to_le32(0x00000008)
+#define SMB2_FLAGS_DFS_OPERATIONS cpu_to_le32(0x10000000)
+
+/*
+ * Definitions for SMB2 Protocol Data Units (network frames)
+ *
+ * See MS-SMB2.PDF specification for protocol details.
+ * The Naming convention is the lower case version of the SMB2
+ * command code name for the struct. Note that structures must be packed.
+ *
+ */
+struct smb2_err_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize;
+ __le16 Reserved; /* MBZ */
+ __le32 ByteCount; /* even if zero, at least one byte follows */
+ __u8 ErrorData[1]; /* variable length */
+} __attribute__((packed));
+
+/* Symlink error response for error STATUS_STOPPED_ON_SYMLINK
+ Following is the ErrorData structure */
+struct symlink_err_data {
+ __le32 SymLinkLength;
+ __le32 SymLinkErrorTag;
+ __le32 ReparseTag;
+ __le16 ReparseDataLength;
+ __le16 Reserved; /* MBZ */
+ __le16 SubstituteNameOffset;
+ __le16 SubstituteNameLength;
+ __le16 PrintNameOffset;
+ __le16 PrintNameLength;
+ __le32 Flags;
+ __u8 PathBuffer[0]; /* variable length */
+} __attribute__((packed));
+
+struct smb2_negotiate_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 36 */
+ __le16 DialectCount;
+ __le16 SecurityMode;
+ __le16 Reserved; /* MBZ */
+ __le32 Capabilities;
+ __u8 ClientGUID[16]; /* MBZ */
+ __le64 ClientStartTime; /* MBZ */
+ __le16 Dialects[2]; /* variable length */ /* Must include 0x0202 */
+} __attribute__((packed));
+/* SecurityMode flags */
+#define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001
+#define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
+/* Capabilities flags */
+#define SMB2_GLOBAL_CAP_DFS 0x00000001
+#define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */
+#define SMB2_GLOBAL_CAP_LARGE_MTU 0X00000004 /* Resp only New to SMB2.1 */
+
+struct smb2_negotiate_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 65 */
+ __le16 SecurityMode;
+ __le16 DialectRevision; /* Should be 0x0202 */
+ __le16 Reserved; /* MBZ */
+ __u8 ServerGUID[16];
+ __le32 Capabilities;
+ __le32 MaxTransactSize;
+ __le32 MaxReadSize;
+ __le32 MaxWriteSize;
+ __le64 SystemTime; /* MBZ */
+ __le64 ServerStartTime;
+ __le16 SecurityBufferOffset;
+ __le16 SecurityBufferLength;
+ __le32 Reserved2; /* may be any value, Ignore */
+ __u8 Buffer[1]; /* variable length GSS security buffer */
+} __attribute__((packed));
+
+struct sess_setup_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 25 */
+ __u8 VcNumber;
+ __u8 SecurityMode;
+ __le32 Capabilities;
+ __le32 Channel;
+ __le16 SecurityBufferOffset;
+ __le16 SecurityBufferLength;
+ __le64 PreviousSessionId;
+ __u8 Buffer[1]; /* variable length GSS security buffer */
+} __attribute__((packed));
+
+/* Currently defined SessionFlags */
+#define SMB2_SESSION_FLAG_IS_GUEST 0x0001
+#define SMB2_SESSION_FLAG_IS_NULL 0x0002
+struct sess_setup_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 9 */
+ __le16 SessionFlags;
+ __le16 SecurityBufferOffset;
+ __le16 SecurityBufferLength;
+ __u8 Buffer[1]; /* variable length GSS security buffer */
+} __attribute__((packed));
+
+struct logoff_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __le16 Reserved;
+} __attribute__((packed));
+
+struct logoff_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __le16 Reserved;
+} __attribute__((packed));
+
+struct tree_connect_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 9 */
+ __le16 Reserved;
+ __le16 PathOffset;
+ __le16 PathLength;
+ __u8 Buffer[1]; /* variable length */
+} __attribute__((packed));
+
+struct tree_connect_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 16 */
+ __u8 ShareType; /* see below */
+ __u8 Reserved;
+ __le32 ShareFlags; /* see below */
+ __le32 Capabilities; /* see below */
+ __le32 MaximalAccess;
+} __attribute__((packed));
+
+/* Possible ShareType values */
+#define SMB2_SHARE_TYPE_DISK 0x01
+#define SMB2_SHARE_TYPE_PIPE 0x02
+#define SMB2_SHARE_TYPE_PRINT 0x03
+
+/* Possible ShareFlags - exactly one and only one of the first 4 caching flags
+ must be set (any of the remaining, SHI1005, flags may be set individually
+ or in combination */
+#define SMB2_SHAREFLAG_MANUAL_CACHING 0x00000000
+#define SMB2_SHAREFLAG_AUTO_CACHING 0x00000010
+#define SMB2_SHAREFLAG_VDO_CACHING 0x00000020
+#define SMB2_SHAREFLAG_NO_CACHING 0x00000030
+#define SHI1005_FLAGS_DFS 0x00000001
+#define SHI1005_FLAGS_DFS_ROOT 0x00000002
+#define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS 0x00000100
+#define SHI1005_FLAGS_FORCE_SHARED_DELETE 0x00000200
+#define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING 0x00000400
+#define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM 0x00000800
+#define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK 0x00001000
+#define SHI1005_FLAGS_ENABLE_HASH 0x00002000
+
+/* Possible share capabilities */
+#define SMB2_SHARE_CAP_DFS cpu_to_le32(0x00000008)
+
+struct tree_disconnect_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __le16 Reserved;
+} __attribute__((packed));
+
+struct tree_disconnect_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __le16 Reserved;
+} __attribute__((packed));
+
+/* Oplock levels */
+#define SMB2_OPLOCK_LEVEL_NONE 0x00
+#define SMB2_OPLOCK_LEVEL_II 0x01
+#define SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08
+#define SMB2_OPLOCK_LEVEL_BATCH 0x09
+#define SMB2_OPLOCK_LEVEL_LEASE 0xFF
+
+/* Desired Access Flags */
+#define FILE_READ_DATA_LE cpu_to_le32(0x00000001)
+#define FILE_WRITE_DATA_LE cpu_to_le32(0x00000002)
+#define FILE_APPEND_DATA_LE cpu_to_le32(0x00000004)
+#define FILE_READ_EA_LE cpu_to_le32(0x00000008)
+#define FILE_WRITE_EA_LE cpu_to_le32(0x00000010)
+#define FILE_EXECUTE_LE cpu_to_le32(0x00000020)
+#define FILE_READ_ATTRIBUTES_LE cpu_to_le32(0x00000080)
+#define FILE_WRITE_ATTRIBUTES_LE cpu_to_le32(0x00000100)
+#define FILE_DELETE_LE cpu_to_le32(0x00010000)
+#define FILE_READ_CONTROL_LE cpu_to_le32(0x00020000)
+#define FILE_WRITE_DAC_LE cpu_to_le32(0x00040000)
+#define FILE_WRITE_OWNER_LE cpu_to_le32(0x00080000)
+#define FILE_SYNCHRONIZE_LE cpu_to_le32(0x00100000)
+#define FILE_ACCESS_SYSTEM_SECURITY_LE cpu_to_le32(0x01000000)
+#define FILE_MAXIMAL_ACCESS_LE cpu_to_le32(0x02000000)
+#define FILE_GENERIC_ALL_LE cpu_to_le32(0x10000000)
+#define FILE_GENERIC_EXECUTE_LE cpu_to_le32(0x20000000)
+#define FILE_GENERIC_WRITE_LE cpu_to_le32(0x40000000)
+#define FILE_GENERIC_READ_LE cpu_to_le32(0x80000000)
+
+/* ShareAccess Flags */
+#define FILE_SHARE_READ_LE cpu_to_le32(0x00000001)
+#define FILE_SHARE_WRITE_LE cpu_to_le32(0x00000002)
+#define FILE_SHARE_DELETE_LE cpu_to_le32(0x00000004)
+#define FILE_SHARE_ALL_LE cpu_to_le32(0x00000007)
+
+/* CreateDisposition Flags */
+#define FILE_SUPERSEDE_LE cpu_to_le32(0x00000000)
+#define FILE_OPEN_LE cpu_to_le32(0x00000001)
+#define FILE_CREATE_LE cpu_to_le32(0x00000002)
+#define FILE_OPEN_IF_LE cpu_to_le32(0x00000003)
+#define FILE_OVERWRITE_LE cpu_to_le32(0x00000004)
+#define FILE_OVERWRITE_IF_LE cpu_to_le32(0x00000005)
+
+/* CreateOptions Flags */
+#define FILE_DIRECTORY_FILE_LE cpu_to_le32(0x00000001)
+#define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002)
+#define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004)
+#define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
+#define FILE_SYNCHRONOUS_IO_ALERT_LE cpu_to_le32(0x00000010)
+#define FILE_SYNCHRONOUS_IO_NON_ALERT_LE cpu_to_le32(0x00000020)
+#define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040)
+#define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100)
+#define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200)
+#define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800)
+#define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000)
+#define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000)
+#define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000)
+#define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000)
+#define FILE_RESERVE_OPFILTER_LE cpu_to_le32(0x00100000)
+#define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000)
+#define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000)
+#define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
+
+#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
+ | FILE_READ_ATTRIBUTES_LE)
+#define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
+ | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
+#define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
+
+/* Impersonation Levels */
+#define IL_ANONYMOUS cpu_to_le32(0x00000000)
+#define IL_IDENTIFICATION cpu_to_le32(0x00000001)
+#define IL_IMPERSONATION cpu_to_le32(0x00000002)
+#define IL_DELEGATE cpu_to_le32(0x00000003)
+
+/* Create Context Values */
+#define SMB2_CREATE_EA_BUFFER "ExtA" /* extended attributes */
+#define SMB2_CREATE_SD_BUFFER "SecD" /* security descriptor */
+#define SMB2_CREATE_DURABLE_HANDLE_REQUEST "DHnQ"
+#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT "DHnC"
+#define SMB2_CREATE_ALLOCATION_SIZE "AlSi"
+#define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
+#define SMB2_CREATE_TIMEWARP_REQUEST "TWrp"
+#define SMB2_CREATE_QUERY_ON_DISK_ID "QFid"
+#define SMB2_CREATE_REQUEST_LEASE "RqLs"
+
+struct create_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 57 */
+ __u8 SecurityFlags;
+ __u8 RequestedOplockLevel;
+ __le32 ImpersonationLevel;
+ __le64 SmbCreateFlags;
+ __le64 Reserved;
+ __le32 DesiredAccess;
+ __le32 FileAttributes;
+ __le32 ShareAccess;
+ __le32 CreateDisposition;
+ __le32 CreateOptions;
+ __le16 NameOffset;
+ __le16 NameLength;
+ __le32 CreateContextsOffset;
+ __le32 CreateContextsLength;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct create_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 89 */
+ __u8 OplockLevel;
+ __u8 Reserved;
+ __le32 CreateAction;
+ __le64 CreationTime;
+ __le64 LastAccessTime;
+ __le64 LastWriteTime;
+ __le64 ChangeTime;
+ __le64 AllocationSize;
+ __le64 EndofFile;
+ __le32 FileAttributes;
+ __le32 Reserved2;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le32 CreateContextsOffset;
+ __le32 CreateContextsLength;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+/* Currently defined values for close flags */
+#define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB cpu_to_le16(0x0001)
+struct close_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 24 */
+ __le16 Flags;
+ __le32 Reserved;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+} __attribute__((packed));
+
+struct close_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* 60 */
+ __le16 Flags;
+ __le32 Reserved;
+ __le64 CreationTime;
+ __le64 LastAccessTime;
+ __le64 LastWriteTime;
+ __le64 ChangeTime;
+ __le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */
+ __le64 EndOfFile;
+ __le32 Attributes;
+} __attribute__((packed));
+
+struct flush_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 24 */
+ __le16 Reserved1;
+ __le32 Reserved2;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+} __attribute__((packed));
+
+struct flush_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize;
+ __le16 Reserved;
+} __attribute__((packed));
+
+struct read_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 49 */
+ __u8 Padding; /* offset from start of SMB2 header to place read */
+ __u8 Reserved;
+ __le32 Length;
+ __le64 Offset;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le32 MinimumCount;
+ __le32 Channel; /* Reserved MBZ */
+ __le32 RemainingBytes;
+ __le16 ReadChannelInfoOffset; /* Reserved MBZ */
+ __le16 ReadChannelInfoLength; /* Reserved MBZ */
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct read_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 17 */
+ __u8 DataOffset;
+ __u8 Reserved;
+ __le32 DataLength;
+ __le32 DataRemaining;
+ __u32 Reserved2;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+/* For write request Flags field below the following flag is defined: */
+#define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001
+
+struct write_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 49 */
+ __le16 DataOffset; /* offset from start of SMB2 header to write data */
+ __le32 Length;
+ __le64 Offset;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le32 Channel; /* Reserved MBZ */
+ __le32 RemainingBytes;
+ __le16 WriteChannelInfoOffset; /* Reserved MBZ */
+ __le16 WriteChannelInfoLength; /* Reserved MBZ */
+ __le32 Flags;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct write_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 17 */
+ __u8 DataOffset;
+ __u8 Reserved;
+ __le32 DataLength;
+ __le32 DataRemaining;
+ __u32 Reserved2;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+#define SMB2_LOCKFLAG_SHARED_LOCK 0x0001
+#define SMB2_LOCKFLAG_EXCLUSIVE_LOCK 0x0002
+#define SMB2_LOCKFLAG_UNLOCK 0x0004
+#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY 0x0010
+
+struct smb2_lock_element {
+ __le64 Offset;
+ __le64 Length;
+ __le16 Flags;
+ __le16 Reserved;
+} __attribute__((packed));
+
+#define LOCKING_ANDX_OPLOCK_RELEASE 0x02
+
+struct lock_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 48 */
+ __le16 LockCount;
+ __le32 Reserved;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ /* Followed by at least one */
+ struct smb2_lock_element locks[1];
+} __attribute__((packed));
+
+struct lock_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __le16 Reserved;
+} __attribute__((packed));
+
+struct echo_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __u16 Reserved;
+} __attribute__((packed));
+
+struct echo_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __u16 Reserved;
+} __attribute__((packed));
+
+/* search (query_directory) Flags field */
+#define SMB2_RESTART_SCANS 0x01
+#define SMB2_RETURN_SINGLE_ENTRY 0x02
+#define SMB2_INDEX_SPECIFIED 0x04
+#define SMB2_REOPEN 0x10
+
+struct query_directory_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 33 */
+ __u8 FileInformationClass;
+ __u8 Flags;
+ __le32 FileIndex;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le16 FileNameOffset;
+ __le16 FileNameLength;
+ __le32 OutputBufferLength;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct query_directory_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 9 */
+ __le16 OutputBufferOffset;
+ __le32 OutputBufferLength;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+/* Possible InfoType values */
+#define SMB2_O_INFO_FILE 0x01
+#define SMB2_O_INFO_FILESYSTEM 0x02
+#define SMB2_O_INFO_SECURITY 0x03
+#define SMB2_O_INFO_QUOTA 0x04
+
+struct query_info_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 41 */
+ __u8 InfoType;
+ __u8 FileInfoClass;
+ __le32 OutputBufferLength;
+ __le16 InputBufferOffset;
+ __u16 Reserved;
+ __le32 InputBufferLength;
+ __le32 AdditionalInformation;
+ __le32 Flags;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct query_info_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 9 */
+ __le16 OutputBufferOffset;
+ __le32 OutputBufferLength;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct set_info_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 33 */
+ __u8 InfoType;
+ __u8 FileInfoClass;
+ __le32 BufferLength;
+ __le16 BufferOffset;
+ __u16 Reserved;
+ __le32 AdditionalInformation;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct set_info_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 2 */
+} __attribute__((packed));
+
+struct ioctl_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 57 */
+ __le16 Reserved;
+ __le32 Ctlcode;
+ __le64 Fileid[2]; /* persistent and volatile */
+ __le32 Inputoffset;
+ __le32 Inputcount;
+ __le32 Maxinputresp;
+ __le32 Outputoffset;
+ __le32 Outputcount;
+ __le32 Maxoutputresp;
+ __le32 Flags;
+ __le32 Reserved2;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+struct ioctl_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 49 */
+ __le16 Reserved;
+ __le32 Ctlcode;
+ __le16 Fileid[2]; /* persistent and volatile */
+ __le32 Inputoffset;
+ __le32 Inputcount;
+ __le32 Outputoffset;
+ __le32 Outputcount;
+ __le32 Flags;
+ __le32 Reserved2;
+ __u8 Buffer[1];
+} __attribute__((packed));
+
+/*****************************************************************
+ * All constants go here
+ *****************************************************************
+ */
+
+/*
+ * Starting value for maximum SMB size negotiation
+ */
+#define SMB2_MAX_MSGSIZE (4*4096)
+
+
+#define SMB2_NETWORK_OPSYS "SMB2 VFS Client for Linux"
+
+/*
+ * PDU infolevel structure definitions
+ * BB consider moving to a different header
+ */
+
+/* File System Information Classes */
+#define FS_VOLUME_INFORMATION 1 /* Query */
+#define FS_LABEL_INFORMATION 2 /* Set */
+#define FS_SIZE_INFORMATION 3 /* Query */
+#define FS_DEVICE_INFORMATION 4 /* Query */
+#define FS_ATTRIBUTE_INFORMATION 5 /* Query */
+#define FS_CONTROL_INFORMATION 6 /* Query, Set */
+#define FS_FULL_SIZE_INFORMATION 7 /* Query */
+#define FS_OBJECT_ID_INFORMATION 8 /* Query, Set */
+#define FS_DRIVER_PATH_INFORMATION 9 /* Query */
+
+struct fs_full_size_info {
+ __le64 TotalAllocationUnits;
+ __le64 CallerAvailableAllocationUnits;
+ __le64 ActualAvailableAllocationUnits;
+ __le32 SectorsPerAllocationUnit;
+ __le32 BytesPerSector;
+};
+
+struct fs_volume_info {
+ __le64 VolumeCreationTime;
+ __le32 VolumeSerialNumber;
+ __le32 VolumeLabelLength;
+ __u8 SupportsObjects; /* 1 = supports object oriented fs objects */
+ __u8 Reserved;
+ /* Variable Length VolumeLabel follows */
+};
+
+struct fs_device_info {
+ __le32 DeviceType; /* see below */
+ __le32 DeviceCharacteristics;
+} __attribute__((packed)); /* device info level 0x104 */
+
+/* DeviceType Flags (remember to endian convert them) */
+#define FILE_DEVICE_CD_ROM 0x00000002
+#define FILE_DEVICE_CD_ROM_FILE_SYSTEM 0x00000003
+#define FILE_DEVICE_DFS 0x00000006
+#define FILE_DEVICE_DISK 0x00000007
+#define FILE_DEVICE_DISK_FILE_SYSTEM 0x00000008
+#define FILE_DEVICE_FILE_SYSTEM 0x00000009
+#define FILE_DEVICE_NAMED_PIPE 0x00000011
+#define FILE_DEVICE_NETWORK 0x00000012
+#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
+#define FILE_DEVICE_NULL 0x00000015
+#define FILE_DEVICE_PARALLEL_PORT 0x00000016
+#define FILE_DEVICE_PRINTER 0x00000018
+#define FILE_DEVICE_SERIAL_PORT 0x0000001b
+#define FILE_DEVICE_STREAMS 0x0000001e
+#define FILE_DEVICE_TAPE 0x0000001f
+#define FILE_DEVICE_TAPE_FILE_SYSTEM 0x00000020
+#define FILE_DEVICE_VIRTUAL_DISK 0x00000024
+#define FILE_DEVICE_NETWORK_REDIRECTOR 0x00000028
+
+#define MAX_FS_NAME 20 /* twice size of longest name ("FAT32") is plenty */
+/* this field is for debugging/informational purposes anyway, so could be
+truncated if extremely long fs names were later created */
+struct fs_attribute_info {
+ __le32 Attributes;
+ __le32 MaximumComponentNameLength;
+ __le32 FileSystemNameLength;
+ char FileSystemName[MAX_FS_NAME]; /* not null terminated */
+} __attribute__((packed));
+
+/* Attributes (remember to endian convert them) */
+#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
+#define FILE_CASE_PRESERVED_NAMES 0x00000002
+#define FILE_UNICODE_ON_DISK 0x00000004
+#define FILE_PERSISTENT_ACLS 0x00000008
+#define FILE_FILE_COMPRESSION 0x00000010
+#define FILE_VOLUME_QUOTAS 0x00000020
+#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
+#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
+#define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100
+#define FILE_VOLUME_IS_COMPRESSED 0x00008000
+#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
+#define FILE_SUPPORTS_ENCRYPTION 0x00020000
+#define FILE_NAMED_STREAMS 0x00040000
+#define FILE_READ_ONLY_VOLUME 0x00080000
+#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
+#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
+#define FILE_SUPPORTS_HARD_LINKS 0x00400000
+#define FILE_SUPPORTS_EXTENDED_ATTRS 0x00800000
+#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
+#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
+
+/* partial list of QUERY INFO levels */
+#define FILE_DIRECTORY_INFORMATION 1
+#define FILE_FULL_DIRECTORY_INFORMATION 2
+#define FILE_BOTH_DIRECTORY_INFORMATION 3
+#define FILE_BASIC_INFORMATION 4
+#define FILE_STANDARD_INFORMATION 5
+#define FILE_INTERNAL_INFORMATION 6
+#define FILE_EA_INFORMATION 7
+#define FILE_ACCESS_INFORMATION 8
+#define FILE_NAME_INFORMATION 9
+#define FILE_RENAME_INFORMATION 10
+#define FILE_LINK_INFORMATION 11
+#define FILE_NAMES_INFORMATION 12
+#define FILE_DISPOSITION_INFORMATION 13
+#define FILE_POSITION_INFORMATION 14
+#define FILE_FULL_EA_INFORMATION 15
+#define FILE_MODE_INFORMATION 16
+#define FILE_ALIGNMENT_INFORMATION 17
+#define FILE_ALL_INFORMATION 18
+#define FILE_ALLOCATION_INFORMATION 19
+#define FILE_END_OF_FILE_INFORMATION 20
+#define FILE_ALTERNATE_NAME_INFORMATION 21
+#define FILE_STREAM_INFORMATION 22
+#define FILE_PIPE_INFORMATION 23
+#define FILE_PIPE_LOCAL_INFORMATION 24
+#define FILE_PIPE_REMOTE_INFORMATION 25
+#define FILE_MAILSLOT_QUERY_INFORMATION 26
+#define FILE_MAILSLOT_SET_INFORMATION 27
+#define FILE_COMPRESSION_INFORMATION 28
+#define FILE_OBJECT_ID_INFORMATION 29
+/* Number 30 not defined in documents */
+#define FILE_MOVE_CLUSTER_INFORMATION 31
+#define FILE_QUOTA_INFORMATION 32
+#define FILE_REPARSE_POINT_INFORMATION 33
+#define FILE_NETWORK_OPEN_INFORMATION 34
+#define FILE_ATTRIBUTE_TAG_INFORMATION 35
+#define FILE_TRACKING_INFORMATION 36
+#define FILEID_BOTH_DIRECTORY_INFORMATION 37
+#define FILEID_FULL_DIRECTORY_INFORMATION 38
+#define FILE_VALID_DATA_LENGTH_INFORMATION 39
+#define FILE_SHORT_NAME_INFORMATION 40
+#define FILE_SFIO_RESERVE_INFORMATION 44
+#define FILE_SFIO_VOLUME_INFORMATION 45
+#define FILE_HARD_LINK_INFORMATION 46
+#define FILE_NORMALIZED_NAME_INFORMATION 48
+#define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
+#define FILE_STANDARD_LINK_INFORMATION 54
+
+struct file_both_directory_info {
+ __le32 next_entry_offset;
+ __u32 file_index;
+ __le64 creation_time;
+ __le64 last_access_time;
+ __le64 last_write_time;
+ __le64 change_time;
+ __le64 end_of_file;
+ __le64 allocation_size;
+ __le32 file_attribute;
+ __le32 filename_length;
+ __le32 easize;
+ __u8 shortname_length;
+ __u8 reserved1;
+ __u8 short_name[24];
+ __u16 reserved2;
+ __le64 file_id;
+ char filename[0];
+} __attribute__((packed));
+
+struct file_full_directory_info {
+ __le32 next_entry_offset;
+ __u32 file_index;
+ __le64 creation_time;
+ __le64 last_access_time;
+ __le64 last_write_time;
+ __le64 change_time;
+ __le64 end_of_file;
+ __le64 allocation_size;
+ __le32 file_attribute;
+ __le32 filename_length;
+ __le32 easize;
+ __u32 reserved2;
+ __le64 file_id;
+ char filename[0];
+} __attribute__((packed));
+
+typedef struct { /* data block encoding of response to level 5 query */
+ __le64 AllocationSize;
+ __le64 EndOfFile; /* size ie offset to first free byte in file */
+ __le32 NumberOfLinks; /* hard links */
+ __u8 DeletePending;
+ __u8 Directory;
+ __u16 Pad2;
+} __attribute__((packed)) FILE_STANDARD_INFO; /* level 5 QPathInfo */
+
+struct FileRenameInformation { /* encoding of request for level 10 */
+ __u8 ReplaceIfExists; /* 1 = replace existing file with new */
+ /* 0 = fail if target file already exists */
+ __u8 Reserved[7];
+ __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
+ __le32 FileNameLength;
+ char FileName[0]; /* New name to be assigned */
+} __attribute__((packed)); /* level 10 set */
+
+struct FileLinkInformation { /* encoding of request for level 11 */
+ __u8 ReplaceIfExists; /* 1 = replace existing link with new */
+ /* 0 = fail if link already exists */
+ __u8 Reserved[7];
+ __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
+ __le32 FileNameLength;
+ char FileName[0]; /* Name to be assigned to new link */
+} __attribute__((packed)); /* level 11 set */
+
+
+/* This level 18, although with struct with same name is different from cifs
+ level 0x107. level 0x107 has an extra u64 between AccessFlags and
+ CurrentByteOffset */
+typedef struct { /* data block encoding of response to level 18 */
+ __le64 CreationTime; /* Beginning of FILE_BASIC_INFO equivalent */
+ __le64 LastAccessTime;
+ __le64 LastWriteTime;
+ __le64 ChangeTime;
+ __le32 Attributes;
+ __u32 Pad1; /* End of FILE_BASIC_INFO_INFO equivalent */
+ __le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */
+ __le64 EndOfFile; /* size ie offset to first free byte in file */
+ __le32 NumberOfLinks; /* hard links */
+ __u8 DeletePending;
+ __u8 Directory;
+ __u16 Pad2; /* End of FILE_STANDARD_INFO equivalent */
+ __le64 IndexNumber;
+ __le32 EASize;
+ __le32 AccessFlags;
+ __le64 CurrentByteOffset;
+ __le32 Mode;
+ __le32 AlignmentRequirement;
+ __le32 FileNameLength;
+ char FileName[1];
+} __attribute__((packed)) FILE_ALL_INFO_SMB2; /* level 18 Query */
+
+typedef struct { /* data block encoding of request to level 15 */
+ __le64 NextEntryOffset;
+ __u8 EaNameLength;
+ char EaName[1];
+} __attribute__((packed)) FILE_GET_EA_INFO; /* level 15 Query */
+
+typedef struct { /* data block encoding of response to level 15 */
+ __le32 NextEntryOffset;
+ __u8 Flags;
+ __u8 EaNameLength;
+ __le16 EaValueLength;
+ char EaName[1];
+ char EaValue[1];
+} __attribute__((packed)) FILE_FULL_EA_INFO; /* level 15 Query */
+
+/* DFS Flags */ /* BB check if these changed in SMB2 from old transact2
+ get DFS referral flags BB */
+#define DFSREF_REFERRAL_SERVER 0x00000001 /* all targets are DFS roots */
+#define DFSREF_STORAGE_SERVER 0x00000002 /* no further ref requests needed */
+#define DFSREF_TARGET_FAILBACK 0x00000004 /* only for DFS referral
version 4 */
+
+/* BB note that various other infolevels are defined in cifspdu.h,
although most
+ are obsolete now (for SMB2) or unneeded, some may be useful to move here */
+
+#define SMB2_IOCTL_IS_FSCTL 0x1
+#define SYMLINK_FLAG_RELATIVE 0x1
+#define MS_REPARSE_TAG 0xA000000C
+
+struct symlink_reparse_data_buf {
+ __le32 reparse_tag;
+ __le16 reparse_datalength;
+ __le16 reserved1;
+ __le16 sub_nameoffset;
+ __le16 sub_namelength;
+ __le16 print_nameoffset;
+ __le16 print_namelength;
+ __le32 flags;