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Diffstat (limited to 'fs/smb/common/smb2pdu.h')
-rw-r--r--fs/smb/common/smb2pdu.h133
1 files changed, 103 insertions, 30 deletions
diff --git a/fs/smb/common/smb2pdu.h b/fs/smb/common/smb2pdu.h
index 1b594307c9d5..f79a5165a7cc 100644
--- a/fs/smb/common/smb2pdu.h
+++ b/fs/smb/common/smb2pdu.h
@@ -6,7 +6,7 @@
* 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
- * able to match against the protocol specfication.
+ * able to match against the protocol specification.
*
* SMB2 commands
* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
@@ -95,6 +95,9 @@
*/
#define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
+/* According to MS-SMB2 specification The minimum recommended value is 65536.*/
+#define CIFS_MIN_DEFAULT_IOSIZE (65536)
+
/*
* SMB2 Header Definition
*
@@ -491,7 +494,7 @@ struct smb2_encryption_neg_context {
__le16 ContextType; /* 2 */
__le16 DataLength;
__le32 Reserved;
- /* CipherCount usally 2, but can be 3 when AES256-GCM enabled */
+ /* CipherCount usually 2, but can be 3 when AES256-GCM enabled */
__le16 CipherCount; /* AES128-GCM and AES128-CCM by default */
__le16 Ciphers[];
} __packed;
@@ -711,7 +714,7 @@ struct smb2_close_rsp {
__le16 StructureSize; /* 60 */
__le16 Flags;
__le32 Reserved;
- struct_group(network_open_info,
+ struct_group_attr(network_open_info, __packed,
__le64 CreationTime;
__le64 LastAccessTime;
__le64 LastWriteTime;
@@ -917,6 +920,40 @@ struct smb2_query_directory_rsp {
__u8 Buffer[];
} __packed;
+/* DeviceType Flags */
+#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
+
+/* Device Characteristics */
+#define FILE_REMOVABLE_MEDIA 0x00000001
+#define FILE_READ_ONLY_DEVICE 0x00000002
+#define FILE_FLOPPY_DISKETTE 0x00000004
+#define FILE_WRITE_ONCE_MEDIA 0x00000008
+#define FILE_REMOTE_DEVICE 0x00000010
+#define FILE_DEVICE_IS_MOUNTED 0x00000020
+#define FILE_VIRTUAL_VOLUME 0x00000040
+#define FILE_DEVICE_SECURE_OPEN 0x00000100
+#define FILE_CHARACTERISTIC_TS_DEVICE 0x00001000
+#define FILE_CHARACTERISTIC_WEBDAV_DEVICE 0x00002000
+#define FILE_PORTABLE_DEVICE 0x00004000
+#define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
+
/*
* Maximum number of iovs we need for a set-info request.
* The largest one is rename/hardlink
@@ -1027,7 +1064,7 @@ struct smb2_server_client_notification {
#define IL_IMPERSONATION cpu_to_le32(0x00000002)
#define IL_DELEGATE cpu_to_le32(0x00000003)
-/* File Attrubutes */
+/* File Attributes */
#define FILE_ATTRIBUTE_READONLY 0x00000001
#define FILE_ATTRIBUTE_HIDDEN 0x00000002
#define FILE_ATTRIBUTE_SYSTEM 0x00000004
@@ -1171,14 +1208,19 @@ struct smb2_server_client_notification {
#define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
struct create_context {
- __le32 Next;
- __le16 NameOffset;
- __le16 NameLength;
- __le16 Reserved;
- __le16 DataOffset;
- __le32 DataLength;
+ /* New members must be added within the struct_group() macro below. */
+ __struct_group(create_context_hdr, hdr, __packed,
+ __le32 Next;
+ __le16 NameOffset;
+ __le16 NameLength;
+ __le16 Reserved;
+ __le16 DataOffset;
+ __le32 DataLength;
+ );
__u8 Buffer[];
} __packed;
+static_assert(offsetof(struct create_context, Buffer) == sizeof(struct create_context_hdr),
+ "struct member likely outside of __struct_group()");
struct smb2_create_req {
struct smb2_hdr hdr;
@@ -1222,7 +1264,7 @@ struct smb2_create_rsp {
} __packed;
struct create_posix {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 Mode;
__u32 Reserved;
@@ -1230,7 +1272,7 @@ struct create_posix {
/* See MS-SMB2 2.2.13.2.3 and MS-SMB2 2.2.13.2.4 */
struct create_durable {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
union {
__u8 Reserved[16];
@@ -1243,14 +1285,14 @@ struct create_durable {
/* See MS-SMB2 2.2.13.2.5 */
struct create_mxac_req {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le64 Timestamp;
} __packed;
/* See MS-SMB2 2.2.14.2.5 */
struct create_mxac_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le32 QueryStatus;
__le32 MaximalAccess;
@@ -1286,13 +1328,13 @@ struct lease_context_v2 {
} __packed;
struct create_lease {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct lease_context lcontext;
} __packed;
struct create_lease_v2 {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
struct lease_context_v2 lcontext;
__u8 Pad[4];
@@ -1300,7 +1342,7 @@ struct create_lease_v2 {
/* See MS-SMB2 2.2.14.2.9 */
struct create_disk_id_rsp {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[8];
__le64 DiskFileId;
__le64 VolumeId;
@@ -1309,7 +1351,7 @@ struct create_disk_id_rsp {
/* See MS-SMB2 2.2.13.2.13 */
struct create_app_inst_id {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 StructureSize; /* Must be 20 */
__u16 Reserved;
@@ -1318,7 +1360,7 @@ struct create_app_inst_id {
/* See MS-SMB2 2.2.13.2.15 */
struct create_app_inst_id_vers {
- struct create_context ccontext;
+ struct create_context_hdr ccontext;
__u8 Name[16];
__le32 StructureSize; /* Must be 24 */
__u16 Reserved;
@@ -1511,7 +1553,28 @@ struct reparse_symlink_data_buffer {
__u8 PathBuffer[]; /* Variable Length */
} __packed;
-/* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
+/* For IO_REPARSE_TAG_NFS - see MS-FSCC 2.1.2.6 */
+#define NFS_SPECFILE_LNK 0x00000000014B4E4C
+#define NFS_SPECFILE_CHR 0x0000000000524843
+#define NFS_SPECFILE_BLK 0x00000000004B4C42
+#define NFS_SPECFILE_FIFO 0x000000004F464946
+#define NFS_SPECFILE_SOCK 0x000000004B434F53
+struct reparse_nfs_data_buffer {
+ __le32 ReparseTag;
+ __le16 ReparseDataLength;
+ __u16 Reserved;
+ __le64 InodeType; /* NFS_SPECFILE_* */
+ __u8 DataBuffer[];
+} __packed;
+
+/* For IO_REPARSE_TAG_LX_SYMLINK - see MS-FSCC 2.1.2.7 */
+struct reparse_wsl_symlink_data_buffer {
+ __le32 ReparseTag;
+ __le16 ReparseDataLength;
+ __u16 Reserved;
+ __le32 Version; /* Always 2 */
+ __u8 Target[]; /* Variable Length UTF-8 string without nul-term */
+} __packed;
struct validate_negotiate_info_req {
__le32 Capabilities;
@@ -1647,23 +1710,33 @@ struct smb2_file_internal_info {
} __packed; /* level 6 Query */
struct smb2_file_rename_info { /* encoding of request for level 10 */
- __u8 ReplaceIfExists; /* 1 = replace existing target with new */
- /* 0 = fail if target already exists */
- __u8 Reserved[7];
- __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
- __le32 FileNameLength;
+ /* New members MUST be added within the struct_group() macro below. */
+ __struct_group(smb2_file_rename_info_hdr, __hdr, __packed,
+ __u8 ReplaceIfExists; /* 1 = replace existing target with new */
+ /* 0 = fail if target already exists */
+ __u8 Reserved[7];
+ __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
+ __le32 FileNameLength;
+ );
char FileName[]; /* New name to be assigned */
/* padding - overall struct size must be >= 24 so filename + pad >= 6 */
} __packed; /* level 10 Set */
+static_assert(offsetof(struct smb2_file_rename_info, FileName) == sizeof(struct smb2_file_rename_info_hdr),
+ "struct member likely outside of __struct_group()");
struct smb2_file_link_info { /* 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;
+ /* New members MUST be added within the struct_group() macro below. */
+ __struct_group(smb2_file_link_info_hdr, __hdr, __packed,
+ __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[]; /* Name to be assigned to new link */
} __packed; /* level 11 Set */
+static_assert(offsetof(struct smb2_file_link_info, FileName) == sizeof(struct smb2_file_link_info_hdr),
+ "struct member likely outside of __struct_group()");
/*
* This level 18, although with struct with same name is different from cifs
generated by cgit (git 2.34.1) at 2025-07-23 08:00:49 +0000