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| author | Pavel Shilovsky <pshilovsky@samba.org> | 2012-09-19 15:22:44 +0200 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2012-09-25 04:46:33 +0200 |
| commit | b8c32dbb0deb287a5fcb78251e4eae6c7275760d (patch) | |
| tree | fa3cddfd4595846921f51a922b7e1722b1e35fa4 /fs/cifs/smb2pdu.h | |
| parent | CIFS: Check for mandatory brlocks on read/write (diff) | |
| download | linux-b8c32dbb0deb287a5fcb78251e4eae6c7275760d.tar.xz linux-b8c32dbb0deb287a5fcb78251e4eae6c7275760d.zip | |
CIFS: Request SMB2.1 leases
if server supports them and we need oplocks.
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
| -rw-r--r-- | fs/cifs/smb2pdu.h | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 889ee5e193d9..e818a5cc5bd8 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -150,6 +150,10 @@ struct smb2_err_rsp { __u8 ErrorData[1]; /* variable length */ } __packed; +#define SMB2_CLIENT_GUID_SIZE 16 + +extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE]; + struct smb2_negotiate_req { struct smb2_hdr hdr; __le16 StructureSize; /* Must be 36 */ @@ -157,7 +161,7 @@ struct smb2_negotiate_req { __le16 SecurityMode; __le16 Reserved; /* MBZ */ __le32 Capabilities; - __u8 ClientGUID[16]; /* MBZ */ + __u8 ClientGUID[SMB2_CLIENT_GUID_SIZE]; __le64 ClientStartTime; /* MBZ */ __le16 Dialects[2]; /* variable length */ } __packed; @@ -307,6 +311,8 @@ struct smb2_tree_disconnect_rsp { #define SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08 #define SMB2_OPLOCK_LEVEL_BATCH 0x09 #define SMB2_OPLOCK_LEVEL_LEASE 0xFF +/* Non-spec internal type */ +#define SMB2_OPLOCK_LEVEL_NOCHANGE 0x99 /* Desired Access Flags */ #define FILE_READ_DATA_LE cpu_to_le32(0x00000001) @@ -404,7 +410,7 @@ struct smb2_create_req { __le16 NameLength; __le32 CreateContextsOffset; __le32 CreateContextsLength; - __u8 Buffer[1]; + __u8 Buffer[8]; } __packed; struct smb2_create_rsp { @@ -428,6 +434,39 @@ struct smb2_create_rsp { __u8 Buffer[1]; } __packed; +struct create_context { + __le32 Next; + __le16 NameOffset; + __le16 NameLength; + __le16 Reserved; + __le16 DataOffset; + __le32 DataLength; + __u8 Buffer[0]; +} __packed; + +#define SMB2_LEASE_NONE __constant_cpu_to_le32(0x00) +#define SMB2_LEASE_READ_CACHING __constant_cpu_to_le32(0x01) +#define SMB2_LEASE_HANDLE_CACHING __constant_cpu_to_le32(0x02) +#define SMB2_LEASE_WRITE_CACHING __constant_cpu_to_le32(0x04) + +#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02) + +#define SMB2_LEASE_KEY_SIZE 16 + +struct lease_context { + __le64 LeaseKeyLow; + __le64 LeaseKeyHigh; + __le32 LeaseState; + __le32 LeaseFlags; + __le64 LeaseDuration; +} __packed; + +struct create_lease { + struct create_context ccontext; + __u8 Name[8]; + struct lease_context lcontext; +} __packed; + /* Currently defined values for close flags */ #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB cpu_to_le16(0x0001) struct smb2_close_req { |