/* * fs/cifs/ntlmssp.h * * Copyright (c) International Business Machines Corp., 2002 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define NTLMSSP_SIGNATURE "NTLMSSP" /* Message Types */ #define NtLmNegotiate cpu_to_le32(1) #define NtLmChallenge cpu_to_le32(2) #define NtLmAuthenticate cpu_to_le32(3) #define UnknownMessage cpu_to_le32(8) /* Negotiate Flags */ #define NTLMSSP_NEGOTIATE_UNICODE 0x01 // Text strings are in unicode #define NTLMSSP_NEGOTIATE_OEM 0x02 // Text strings are in OEM #define NTLMSSP_REQUEST_TARGET 0x04 // Server return its auth realm #define NTLMSSP_NEGOTIATE_SIGN 0x0010 // Request signature capability #define NTLMSSP_NEGOTIATE_SEAL 0x0020 // Request confidentiality #define NTLMSSP_NEGOTIATE_DGRAM 0x0040 #define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 // Use LM session key for sign/seal #define NTLMSSP_NEGOTIATE_NTLM 0x0200 // NTLM authentication #define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000 #define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000 #define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 // client/server on same machine #define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 // Sign for all security levels #define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000 #define NTLMSSP_TARGET_TYPE_SERVER 0x20000 #define NTLMSSP_TARGET_TYPE_SHARE 0x40000 #define NTLMSSP_NEGOTIATE_NTLMV2 0x80000 #define NTLMSSP_REQUEST_INIT_RESP 0x100000 #define NTLMSSP_REQUEST_ACCEPT_RESP 0x200000 #define NTLMSSP_REQUEST_NOT_NT_KEY 0x400000 #define NTLMSSP_NEGOTIATE_TARGET_INFO 0x800000 #define NTLMSSP_NEGOTIATE_128 0x20000000 #define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000 #define NTLMSSP_NEGOTIATE_56 0x80000000 /* Although typedefs are not commonly used for structure definitions */ /* in the Linux kernel, in this particular case they are useful */ /* to more closely match the standards document for NTLMSSP from */ /* OpenGroup and to make the code more closely match the standard in */ /* appearance */ typedef struct _SECURITY_BUFFER { __le16 Length; __le16 MaximumLength; __le32 Buffer; /* offset to buffer */ } __attribute__((packed)) SECURITY_BUFFER; typedef struct _NEGOTIATE_MESSAGE { __u8 Signature[sizeof (NTLMSSP_SIGNATURE)]; __le32 MessageType; /* 1 */ __le32 NegotiateFlags; SECURITY_BUFFER DomainName; /* RFC 1001 style and ASCII */ SECURITY_BUFFER WorkstationName; /* RFC 1001 and ASCII */ char DomainString[0]; /* followed by WorkstationString */ } __attribute__((packed)) NEGOTIATE_MESSAGE, *PNEGOTIATE_MESSAGE; typedef struct _CHALLENGE_MESSAGE { __u8 Signature[sizeof (NTLMSSP_SIGNATURE)]; __le32 MessageType; /* 2 */ SECURITY_BUFFER TargetName; __le32 NegotiateFlags; __u8 Challenge[CIFS_CRYPTO_KEY_SIZE]; __u8 Reserved[8]; SECURITY_BUFFER TargetInfoArray; } __attribute__((packed)) CHALLENGE_MESSAGE, *PCHALLENGE_MESSAGE; typedef struct _AUTHENTICATE_MESSAGE { __u8 Signature[sizeof (NTLMSSP_SIGNATURE)]; __le32 MessageType; /* 3 */ SECURITY_BUFFER LmChallengeResponse; SECURITY_BUFFER NtChallengeResponse; SECURITY_BUFFER DomainName; SECURITY_BUFFER UserName; SECURITY_BUFFER WorkstationName; SECURITY_BUFFER SessionKey; __le32 NegotiateFlags; char UserString[0]; } __attribute__((packed)) AUTHENTICATE_MESSAGE, *PAUTHENTICATE_MESSAGE;