diff options
Diffstat (limited to 'fs/cifs/smb2pdu.h')
| -rw-r--r-- | fs/cifs/smb2pdu.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 44501f8cbd75..dd6e749b2400 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -222,7 +222,7 @@ struct smb2_negotiate_req { __le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */ __le16 NegotiateContextCount; /* SMB3.1.1 only. MBZ earlier */ __le16 Reserved2; - __le16 Dialects[1]; /* One dialect (vers=) at a time for now */ + __le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */ } __packed; /* Dialects */ @@ -257,12 +257,20 @@ struct smb2_neg_context { /* Followed by array of data */ } __packed; -#define SMB311_SALT_SIZE 32 +#define SMB311_LINUX_CLIENT_SALT_SIZE 32 /* Hash Algorithm Types */ #define SMB2_PREAUTH_INTEGRITY_SHA512 cpu_to_le16(0x0001) #define SMB2_PREAUTH_HASH_SIZE 64 -#define MIN_PREAUTH_CTXT_DATA_LEN (SMB311_SALT_SIZE + 6) +/* + * SaltLength that the server send can be zero, so the only three required + * fields (all __le16) end up six bytes total, so the minimum context data len + * in the response is six bytes which accounts for + * + * HashAlgorithmCount, SaltLength, and 1 HashAlgorithm. + */ +#define MIN_PREAUTH_CTXT_DATA_LEN 6 + struct smb2_preauth_neg_context { __le16 ContextType; /* 1 */ __le16 DataLength; @@ -270,7 +278,7 @@ struct smb2_preauth_neg_context { __le16 HashAlgorithmCount; /* 1 */ __le16 SaltLength; __le16 HashAlgorithms; /* HashAlgorithms[0] since only one defined */ - __u8 Salt[SMB311_SALT_SIZE]; + __u8 Salt[SMB311_LINUX_CLIENT_SALT_SIZE]; } __packed; /* Encryption Algorithms Ciphers */ @@ -602,7 +610,7 @@ struct smb2_tree_disconnect_rsp { #define SMB2_CREATE_SD_BUFFER "SecD" /* security descriptor */ #define SMB2_CREATE_DURABLE_HANDLE_REQUEST "DHnQ" #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT "DHnC" -#define SMB2_CREATE_ALLOCATION_SIZE "AISi" +#define SMB2_CREATE_ALLOCATION_SIZE "AlSi" #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc" #define SMB2_CREATE_TIMEWARP_REQUEST "TWrp" #define SMB2_CREATE_QUERY_ON_DISK_ID "QFid" |