ntlmssp.h 4.0 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697
  1. /*
  2. * fs/cifs/ntlmssp.h
  3. *
  4. * Copyright (c) International Business Machines Corp., 2002,2006
  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. #define NTLMSSP_SIGNATURE "NTLMSSP"
  22. /* Message Types */
  23. #define NtLmNegotiate cpu_to_le32(1)
  24. #define NtLmChallenge cpu_to_le32(2)
  25. #define NtLmAuthenticate cpu_to_le32(3)
  26. #define UnknownMessage cpu_to_le32(8)
  27. /* Negotiate Flags */
  28. #define NTLMSSP_NEGOTIATE_UNICODE 0x01 // Text strings are in unicode
  29. #define NTLMSSP_NEGOTIATE_OEM 0x02 // Text strings are in OEM
  30. #define NTLMSSP_REQUEST_TARGET 0x04 // Server return its auth realm
  31. #define NTLMSSP_NEGOTIATE_SIGN 0x0010 // Request signature capability
  32. #define NTLMSSP_NEGOTIATE_SEAL 0x0020 // Request confidentiality
  33. #define NTLMSSP_NEGOTIATE_DGRAM 0x0040
  34. #define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 // Use LM session key for sign/seal
  35. #define NTLMSSP_NEGOTIATE_NTLM 0x0200 // NTLM authentication
  36. #define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000
  37. #define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000
  38. #define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 // client/server on same machine
  39. #define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 // Sign for all security levels
  40. #define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000
  41. #define NTLMSSP_TARGET_TYPE_SERVER 0x20000
  42. #define NTLMSSP_TARGET_TYPE_SHARE 0x40000
  43. #define NTLMSSP_NEGOTIATE_NTLMV2 0x80000
  44. #define NTLMSSP_REQUEST_INIT_RESP 0x100000
  45. #define NTLMSSP_REQUEST_ACCEPT_RESP 0x200000
  46. #define NTLMSSP_REQUEST_NOT_NT_KEY 0x400000
  47. #define NTLMSSP_NEGOTIATE_TARGET_INFO 0x800000
  48. #define NTLMSSP_NEGOTIATE_128 0x20000000
  49. #define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000
  50. #define NTLMSSP_NEGOTIATE_56 0x80000000
  51. /* Although typedefs are not commonly used for structure definitions */
  52. /* in the Linux kernel, in this particular case they are useful */
  53. /* to more closely match the standards document for NTLMSSP from */
  54. /* OpenGroup and to make the code more closely match the standard in */
  55. /* appearance */
  56. typedef struct _SECURITY_BUFFER {
  57. __le16 Length;
  58. __le16 MaximumLength;
  59. __le32 Buffer; /* offset to buffer */
  60. } __attribute__((packed)) SECURITY_BUFFER;
  61. typedef struct _NEGOTIATE_MESSAGE {
  62. __u8 Signature[sizeof (NTLMSSP_SIGNATURE)];
  63. __le32 MessageType; /* 1 */
  64. __le32 NegotiateFlags;
  65. SECURITY_BUFFER DomainName; /* RFC 1001 style and ASCII */
  66. SECURITY_BUFFER WorkstationName; /* RFC 1001 and ASCII */
  67. char DomainString[0];
  68. /* followed by WorkstationString */
  69. } __attribute__((packed)) NEGOTIATE_MESSAGE, *PNEGOTIATE_MESSAGE;
  70. typedef struct _CHALLENGE_MESSAGE {
  71. __u8 Signature[sizeof (NTLMSSP_SIGNATURE)];
  72. __le32 MessageType; /* 2 */
  73. SECURITY_BUFFER TargetName;
  74. __le32 NegotiateFlags;
  75. __u8 Challenge[CIFS_CRYPTO_KEY_SIZE];
  76. __u8 Reserved[8];
  77. SECURITY_BUFFER TargetInfoArray;
  78. } __attribute__((packed)) CHALLENGE_MESSAGE, *PCHALLENGE_MESSAGE;
  79. typedef struct _AUTHENTICATE_MESSAGE {
  80. __u8 Signature[sizeof (NTLMSSP_SIGNATURE)];
  81. __le32 MessageType; /* 3 */
  82. SECURITY_BUFFER LmChallengeResponse;
  83. SECURITY_BUFFER NtChallengeResponse;
  84. SECURITY_BUFFER DomainName;
  85. SECURITY_BUFFER UserName;
  86. SECURITY_BUFFER WorkstationName;
  87. SECURITY_BUFFER SessionKey;
  88. __le32 NegotiateFlags;
  89. char UserString[0];
  90. } __attribute__((packed)) AUTHENTICATE_MESSAGE, *PAUTHENTICATE_MESSAGE;