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authorSteve French <steve.french@primarydata.com>2015-02-06 09:03:52 +0300
committerSteve French <steve.french@primarydata.com>2015-06-28 06:23:59 +0300
commiteed0e1753cbe7a30758ad2ee5e2742dd7fda2c41 (patch)
tree3bed8a833e195d424e4d6162920b11fb2b376c56
parent5f7fbf733c9dd6b58d40fa394313a5949b696f84 (diff)
downloadlinux-eed0e1753cbe7a30758ad2ee5e2742dd7fda2c41.tar.xz
Add defines and structs for smb3.1 dialect
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>
-rw-r--r--fs/cifs/smb2pdu.c2
-rw-r--r--fs/cifs/smb2pdu.h40
2 files changed, 36 insertions, 6 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 150dbe3e2822..1270806376eb 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -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);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 994b34843c3a..725283a7d887 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -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 */