CIFS: Implement follow_link for SMB2

[linux.git] / fs / cifs / smb2pdu.h

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 4cb4ced258cb333d326e9fc5ccd353313ec0c8d4..40baeae60b081aa8e94757bf992f1f612f26a927 100644 (file)
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/smb2pdu.h
  *
- *   Copyright (c) International Business Machines  Corp., 2009, 2010
+ *   Copyright (c) International Business Machines  Corp., 2009, 2013
  *                 Etersoft, 2012
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *              Pavel Shilovsky (pshilovsky@samba.org) 2012
@@ -150,6 +150,20 @@ struct smb2_err_rsp {
        __u8   ErrorData[1];  /* variable length */
 } __packed;
 
+struct smb2_symlink_err_rsp {
+       __le32 SymLinkLength;
+       __le32 SymLinkErrorTag;
+       __le32 ReparseTag;
+       __le16 ReparseDataLength;
+       __le16 UnparsedPathLength;
+       __le16 SubstituteNameOffset;
+       __le16 SubstituteNameLength;
+       __le16 PrintNameOffset;
+       __le16 PrintNameLength;
+       __le32 Flags;
+       __u8  PathBuffer[0];
+} __packed;
+
 #define SMB2_CLIENT_GUID_SIZE 16
 
 extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
@@ -170,6 +184,7 @@ struct smb2_negotiate_req {
 #define SMB20_PROT_ID 0x0202
 #define SMB21_PROT_ID 0x0210
 #define SMB30_PROT_ID 0x0300
+#define SMB302_PROT_ID 0x0302
 #define BAD_PROT_ID   0xFFFF
 
 /* SecurityMode flags */
@@ -283,10 +298,17 @@ struct smb2_tree_connect_rsp {
 #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
+#define SHI1005_FLAGS_ENABLE_HASH_V1                   0x00002000
+#define SHI1005_FLAGS_ENABLE_HASH_V2                   0x00004000
+#define SHI1005_FLAGS_ENCRYPT_DATA                     0x00008000
+#define SHI1005_FLAGS_ALL                              0x0000FF33
 
 /* Possible share capabilities */
-#define SMB2_SHARE_CAP_DFS     cpu_to_le32(0x00000008)
+#define SMB2_SHARE_CAP_DFS     cpu_to_le32(0x00000008) /* all dialects */
+#define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
+#define SMB2_SHARE_CAP_SCALEOUT        cpu_to_le32(0x00000020) /* 3.0 */
+#define SMB2_SHARE_CAP_CLUSTER cpu_to_le32(0x00000040) /* 3.0 */
+#define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
 
 struct smb2_tree_disconnect_req {
        struct smb2_hdr hdr;
@@ -420,7 +442,7 @@ struct smb2_create_req {
        __le16 NameLength;
        __le32 CreateContextsOffset;
        __le32 CreateContextsLength;
-       __u8   Buffer[8];
+       __u8   Buffer[0];
 } __packed;
 
 struct smb2_create_rsp {
@@ -477,6 +499,87 @@ struct create_lease {
        struct lease_context lcontext;
 } __packed;
 
+struct create_durable {
+       struct create_context ccontext;
+       __u8   Name[8];
+       union {
+               __u8  Reserved[16];
+               struct {
+                       __u64 PersistentFileId;
+                       __u64 VolatileFileId;
+               } Fid;
+       } Data;
+} __packed;
+
+/* this goes in the ioctl buffer when doing a copychunk request */
+struct copychunk_ioctl {
+       char SourceKey[24];
+       __le32 ChunkCount; /* we are only sending 1 */
+       __le32 Reserved;
+       /* array will only be one chunk long for us */
+       __le64 SourceOffset;
+       __le64 TargetOffset;
+       __le32 Length; /* how many bytes to copy */
+       __u32 Reserved2;
+} __packed;
+
+/* Response and Request are the same format */
+struct validate_negotiate_info {
+       __le32 Capabilities;
+       __u8   Guid[SMB2_CLIENT_GUID_SIZE];
+       __le16 SecurityMode;
+       __le16 DialectCount;
+       __le16 Dialect[1];
+} __packed;
+
+#define RSS_CAPABLE    0x00000001
+#define RDMA_CAPABLE   0x00000002
+
+struct network_interface_info_ioctl_rsp {
+       __le32 Next; /* next interface. zero if this is last one */
+       __le32 IfIndex;
+       __le32 Capability; /* RSS or RDMA Capable */
+       __le32 Reserved;
+       __le64 LinkSpeed;
+       char    SockAddr_Storage[128];
+} __packed;
+
+#define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
+
+struct smb2_ioctl_req {
+       struct smb2_hdr hdr;
+       __le16 StructureSize;   /* Must be 57 */
+       __u16 Reserved;
+       __le32 CtlCode;
+       __u64  PersistentFileId; /* opaque endianness */
+       __u64  VolatileFileId; /* opaque endianness */
+       __le32 InputOffset;
+       __le32 InputCount;
+       __le32 MaxInputResponse;
+       __le32 OutputOffset;
+       __le32 OutputCount;
+       __le32 MaxOutputResponse;
+       __le32 Flags;
+       __u32  Reserved2;
+       char   Buffer[0];
+} __packed;
+
+struct smb2_ioctl_rsp {
+       struct smb2_hdr hdr;
+       __le16 StructureSize;   /* Must be 57 */
+       __u16 Reserved;
+       __le32 CtlCode;
+       __u64  PersistentFileId; /* opaque endianness */
+       __u64  VolatileFileId; /* opaque endianness */
+       __le32 InputOffset;
+       __le32 InputCount;
+       __le32 OutputOffset;
+       __le32 OutputCount;
+       __le32 Flags;
+       __u32  Reserved2;
+       /* char * buffer[] */
+} __packed;
+
 /* Currently defined values for close flags */
 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB       cpu_to_le16(0x0001)
 struct smb2_close_req {
@@ -517,17 +620,25 @@ struct smb2_flush_rsp {
        __le16 Reserved;
 } __packed;
 
+/* For read request Flags field below, following flag is defined for SMB3.02 */
+#define SMB2_READFLAG_READ_UNBUFFERED  0x01
+
+/* Channel field for read and write: exactly one of following flags can be set*/
+#define SMB2_CHANNEL_NONE              0x00000000
+#define SMB2_CHANNEL_RDMA_V1           0x00000001 /* SMB3 or later */
+#define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000001 /* SMB3.02 or later */
+
 struct smb2_read_req {
        struct smb2_hdr hdr;
        __le16 StructureSize; /* Must be 49 */
        __u8   Padding; /* offset from start of SMB2 header to place read */
-       __u8   Reserved;
+       __u8   Flags; /* MBZ unless SMB3.02 or later */
        __le32 Length;
        __le64 Offset;
        __u64  PersistentFileId; /* opaque endianness */
        __u64  VolatileFileId; /* opaque endianness */
        __le32 MinimumCount;
-       __le32 Channel; /* Reserved MBZ */
+       __le32 Channel; /* MBZ except for SMB3 or later */
        __le32 RemainingBytes;
        __le16 ReadChannelInfoOffset; /* Reserved MBZ */
        __le16 ReadChannelInfoLength; /* Reserved MBZ */
@@ -545,8 +656,9 @@ struct smb2_read_rsp {
        __u8   Buffer[1];
 } __packed;
 
-/* For write request Flags field below the following flag is defined: */
-#define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001
+/* For write request Flags field below the following flags are defined: */
+#define SMB2_WRITEFLAG_WRITE_THROUGH   0x00000001      /* SMB2.1 or later */
+#define SMB2_WRITEFLAG_WRITE_UNBUFFERED        0x00000002      /* SMB3.02 or later */
 
 struct smb2_write_req {
        struct smb2_hdr hdr;