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1 | /* |
2 | * fs/cifs/ntlmssp.h | |
3 | * | |
4 | * Copyright (c) International Business Machines Corp., 2002 | |
5 | * Author(s): Steve French (sfrench@us.ibm.com) | |
6 | * | |
7 | * This library is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU Lesser General Public License as published | |
9 | * by the Free Software Foundation; either version 2.1 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
15 | * the GNU Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public License | |
18 | * along with this library; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #pragma pack(1) | |
23 | ||
24 | #define NTLMSSP_SIGNATURE "NTLMSSP" | |
25 | /* Message Types */ | |
26 | #define NtLmNegotiate cpu_to_le32(1) | |
27 | #define NtLmChallenge cpu_to_le32(2) | |
28 | #define NtLmAuthenticate cpu_to_le32(3) | |
29 | #define UnknownMessage cpu_to_le32(8) | |
30 | ||
31 | /* Negotiate Flags */ | |
32 | #define NTLMSSP_NEGOTIATE_UNICODE 0x01 // Text strings are in unicode | |
33 | #define NTLMSSP_NEGOTIATE_OEM 0x02 // Text strings are in OEM | |
34 | #define NTLMSSP_REQUEST_TARGET 0x04 // Server return its auth realm | |
35 | #define NTLMSSP_NEGOTIATE_SIGN 0x0010 // Request signature capability | |
36 | #define NTLMSSP_NEGOTIATE_SEAL 0x0020 // Request confidentiality | |
37 | #define NTLMSSP_NEGOTIATE_DGRAM 0x0040 | |
38 | #define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 // Use LM session key for sign/seal | |
39 | #define NTLMSSP_NEGOTIATE_NTLM 0x0200 // NTLM authentication | |
40 | #define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000 | |
41 | #define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000 | |
42 | #define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 // client/server on same machine | |
43 | #define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 // Sign for all security levels | |
44 | #define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000 | |
45 | #define NTLMSSP_TARGET_TYPE_SERVER 0x20000 | |
46 | #define NTLMSSP_TARGET_TYPE_SHARE 0x40000 | |
47 | #define NTLMSSP_NEGOTIATE_NTLMV2 0x80000 | |
48 | #define NTLMSSP_REQUEST_INIT_RESP 0x100000 | |
49 | #define NTLMSSP_REQUEST_ACCEPT_RESP 0x200000 | |
50 | #define NTLMSSP_REQUEST_NOT_NT_KEY 0x400000 | |
51 | #define NTLMSSP_NEGOTIATE_TARGET_INFO 0x800000 | |
52 | #define NTLMSSP_NEGOTIATE_128 0x20000000 | |
53 | #define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000 | |
54 | #define NTLMSSP_NEGOTIATE_56 0x80000000 | |
55 | ||
56 | /* Although typedefs are not commonly used for structure definitions */ | |
57 | /* in the Linux kernel, in this particular case they are useful */ | |
58 | /* to more closely match the standards document for NTLMSSP from */ | |
59 | /* OpenGroup and to make the code more closely match the standard in */ | |
60 | /* appearance */ | |
61 | ||
62 | typedef struct _SECURITY_BUFFER { | |
63 | __le16 Length; | |
64 | __le16 MaximumLength; | |
65 | __le32 Buffer; /* offset to buffer */ | |
66 | } SECURITY_BUFFER; | |
67 | ||
68 | typedef struct _NEGOTIATE_MESSAGE { | |
69 | __u8 Signature[sizeof (NTLMSSP_SIGNATURE)]; | |
70 | __le32 MessageType; /* 1 */ | |
71 | __le32 NegotiateFlags; | |
72 | SECURITY_BUFFER DomainName; /* RFC 1001 style and ASCII */ | |
73 | SECURITY_BUFFER WorkstationName; /* RFC 1001 and ASCII */ | |
74 | char DomainString[0]; | |
75 | /* followed by WorkstationString */ | |
76 | } NEGOTIATE_MESSAGE, *PNEGOTIATE_MESSAGE; | |
77 | ||
78 | typedef struct _CHALLENGE_MESSAGE { | |
79 | __u8 Signature[sizeof (NTLMSSP_SIGNATURE)]; | |
80 | __le32 MessageType; /* 2 */ | |
81 | SECURITY_BUFFER TargetName; | |
82 | __le32 NegotiateFlags; | |
83 | __u8 Challenge[CIFS_CRYPTO_KEY_SIZE]; | |
84 | __u8 Reserved[8]; | |
85 | SECURITY_BUFFER TargetInfoArray; | |
86 | } CHALLENGE_MESSAGE, *PCHALLENGE_MESSAGE; | |
87 | ||
88 | typedef struct _AUTHENTICATE_MESSAGE { | |
89 | __u8 Signature[sizeof (NTLMSSP_SIGNATURE)]; | |
90 | __le32 MessageType; /* 3 */ | |
91 | SECURITY_BUFFER LmChallengeResponse; | |
92 | SECURITY_BUFFER NtChallengeResponse; | |
93 | SECURITY_BUFFER DomainName; | |
94 | SECURITY_BUFFER UserName; | |
95 | SECURITY_BUFFER WorkstationName; | |
96 | SECURITY_BUFFER SessionKey; | |
97 | __le32 NegotiateFlags; | |
98 | char UserString[0]; | |
99 | } AUTHENTICATE_MESSAGE, *PAUTHENTICATE_MESSAGE; | |
100 | ||
101 | #pragma pack() /* resume default structure packing */ |