auth/ntlmssp/ntlmssp.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB parameters and setup
   4    Copyright (C) Andrew Tridgell 1992-1997
   5    Copyright (C) Luke Kenneth Casson Leighton 1996-1997
   6    Copyright (C) Paul Ashton 1997
   7    Copyright (C) Andrew Bartlett 2010
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "../librpc/gen_ndr/ntlmssp.h"
  24
  25 struct auth_context;
  26 struct auth_serversupplied_info;
  27 struct tsocket_address;
  28 struct auth_user_info_dc;
  29 struct gensec_security;
  30 struct ntlmssp_state;
  31
  32 /* NTLMSSP mode */
  33 enum ntlmssp_role
  34 {
  35         NTLMSSP_SERVER,
  36         NTLMSSP_CLIENT
  37 };
  38
  39 /* NTLMSSP message types */
  40 enum ntlmssp_message_type
  41 {
  42         NTLMSSP_INITIAL = 0 /* samba internal state */,
  43         NTLMSSP_NEGOTIATE = 1,
  44         NTLMSSP_CHALLENGE = 2,
  45         NTLMSSP_AUTH      = 3,
  46         NTLMSSP_UNKNOWN   = 4,
  47         NTLMSSP_DONE      = 5 /* samba final state */
  48 };
  49
  50 #define NTLMSSP_FEATURE_SESSION_KEY        0x00000001
  51 #define NTLMSSP_FEATURE_SIGN               0x00000002
  52 #define NTLMSSP_FEATURE_SEAL               0x00000004
  53 #define NTLMSSP_FEATURE_CCACHE             0x00000008
  54
  55 union ntlmssp_crypt_state;
  56
  57 struct ntlmssp_state
  58 {
  59         enum ntlmssp_role role;
  60         uint32_t expected_state;
  61
  62         bool unicode;
  63         bool use_ntlmv2;
  64         bool use_ccache;
  65         bool use_nt_response;  /* Set to 'False' to debug what happens when the NT response is omited */
  66         bool allow_lm_key;     /* The LM_KEY code is not very secure... */
  67
  68         const char *user;
  69         const char *domain;
  70         uint8_t *nt_hash;
  71         uint8_t *lm_hash;
  72
  73         struct {
  74                 const char *netbios_name;
  75                 const char *netbios_domain;
  76         } client;
  77
  78         struct {
  79                 bool is_standalone;
  80                 const char *netbios_name;
  81                 const char *netbios_domain;
  82                 const char *dns_name;
  83                 const char *dns_domain;
  84         } server;
  85
  86         DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
  87
  88         DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
  89         DATA_BLOB lm_resp;
  90         DATA_BLOB nt_resp;
  91         DATA_BLOB session_key;
  92
  93         uint32_t neg_flags; /* the current state of negotiation with the NTLMSSP partner */
  94
  95         union ntlmssp_crypt_state *crypt;
  96 };
  97
  98 /* The following definitions come from libcli/auth/ntlmssp_sign.c  */
  99
 100 NTSTATUS ntlmssp_sign_packet(struct ntlmssp_state *ntlmssp_state,
 101                              TALLOC_CTX *sig_mem_ctx,
 102                              const uint8_t *data, size_t length,
 103                              const uint8_t *whole_pdu, size_t pdu_length,
 104                              DATA_BLOB *sig);
 105 NTSTATUS ntlmssp_check_packet(struct ntlmssp_state *ntlmssp_state,
 106                               const uint8_t *data, size_t length,
 107                               const uint8_t *whole_pdu, size_t pdu_length,
 108                               const DATA_BLOB *sig) ;
 109 NTSTATUS ntlmssp_seal_packet(struct ntlmssp_state *ntlmssp_state,
 110                              TALLOC_CTX *sig_mem_ctx,
 111                              uint8_t *data, size_t length,
 112                              const uint8_t *whole_pdu, size_t pdu_length,
 113                              DATA_BLOB *sig);
 114 NTSTATUS ntlmssp_unseal_packet(struct ntlmssp_state *ntlmssp_state,
 115                                uint8_t *data, size_t length,
 116                                const uint8_t *whole_pdu, size_t pdu_length,
 117                                const DATA_BLOB *sig);
 118 NTSTATUS ntlmssp_wrap(struct ntlmssp_state *ntlmssp_state,
 119                       TALLOC_CTX *out_mem_ctx,
 120                       const DATA_BLOB *in,
 121                       DATA_BLOB *out);
 122 NTSTATUS ntlmssp_unwrap(struct ntlmssp_state *ntlmssp_stae,
 123                         TALLOC_CTX *out_mem_ctx,
 124                         const DATA_BLOB *in,
 125                         DATA_BLOB *out);
 126 NTSTATUS ntlmssp_sign_init(struct ntlmssp_state *ntlmssp_state);
 127
 128 bool ntlmssp_blob_matches_magic(const DATA_BLOB *blob);
 129
 130 /* The following definitions come from auth/ntlmssp/gensec_ntlmssp.c  */
 131
 132 NTSTATUS gensec_ntlmssp_init(void);
 133
 134 uint32_t gensec_ntlmssp_neg_flags(struct gensec_security *gensec_security);