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Add defines and structs for smb3.1 dialect

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Add new structures and defines for SMB3.11 negotiate, session setup and tcon

See MS-SMB2-diff.pdf section 2.2.3 for additional protocol documentation.

Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Steve French <steve.french@primarydata.com>
This commit is contained in:
Steve French 2015-02-06 00:03:52 -06:00
parent 5f7fbf733c
commit eed0e1753c
2 changed files with 36 additions and 6 deletions
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2
fs/cifs/smb2pdu.c
View File

@ -576,7 +576,7 @@ ssetup_ntlmssp_authenticate:
return rc;
req->hdr.SessionId = 0; /* First session, not a reauthenticate */
req->VcNumber = 0; /* MBZ */
req->Flags = 0; /* MBZ */
/* to enable echos and oplocks */
req->hdr.CreditRequest = cpu_to_le16(3);

40
fs/cifs/smb2pdu.h
View File

@ -136,9 +136,6 @@ struct smb2_transform_hdr {
__u64 SessionId;
} __packed;
/* Encryption Algorithms */
#define SMB2_ENCRYPTION_AES128_CCM cpu_to_le16(0x0001)
/*
* SMB2 flag definitions
*/
@ -221,6 +218,32 @@ struct smb2_negotiate_req {
#define SMB2_NT_FIND 0x00100000
#define SMB2_LARGE_FILES 0x00200000
#define SMB311_SALT_SIZE 32
/* Hash Algorithm Types */
#define SMB2_PREAUTH_INTEGRITY_SHA512 0x0001
struct smb2_preauth_neg_context {
__le16 ContextType; /* 1 */
__le16 DataLength;
__le32 Reserved;
__le16 HashAlgorithmCount; /* 1 */
__le16 SaltLength;
__le16 HashAlgorithms; /* HashAlgorithms[0] since only one defined */
__u8 Salt[SMB311_SALT_SIZE];
} __packed;
/* Encryption Algorithms Ciphers */
#define SMB2_ENCRYPTION_AES128_CCM cpu_to_le16(0x0001)
#define SMB2_ENCRYPTION_AES128_GCM cpu_to_le16(0x0002)
struct smb2_encryption_neg_context {
__le16 ContextType; /* 2 */
__le16 DataLength;
__le32 Reserved;
__le16 CipherCount; /* 1 for time being, only AES-128-CCM */
__le16 Ciphers; /* Ciphers[0] since only one used now */
} __packed;
struct smb2_negotiate_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 65 */
@ -240,10 +263,14 @@ struct smb2_negotiate_rsp {
__u8 Buffer[1]; /* variable length GSS security buffer */
} __packed;
/* Flags */
#define SMB2_SESSION_REQ_FLAG_BINDING 0x01
#define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA 0x04
struct smb2_sess_setup_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 25 */
__u8 VcNumber;
__u8 Flags;
__u8 SecurityMode;
__le32 Capabilities;
__le32 Channel;
@ -278,10 +305,13 @@ struct smb2_logoff_rsp {
__le16 Reserved;
} __packed;
/* Flags/Reserved for SMB3.1.1 */
#define SMB2_SHAREFLAG_CLUSTER_RECONNECT 0x0001
struct smb2_tree_connect_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
__le16 Reserved;
__le16 Reserved; /* Flags in SMB3.1.1 */
__le16 PathOffset;
__le16 PathLength;
__u8 Buffer[1]; /* variable length */