auth/common_auth.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Standardised Authentication types
   4    Copyright (C) Andrew Bartlett 2001-2010
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef AUTH_COMMON_AUTH_H
  21 #define AUTH_COMMON_AUTH_H
  22
  23 #include "librpc/gen_ndr/auth.h"
  24
  25 #define USER_INFO_CASE_INSENSITIVE_USERNAME 0x01 /* username may be in any case */
  26 #define USER_INFO_CASE_INSENSITIVE_PASSWORD 0x02 /* password may be in any case */
  27 #define USER_INFO_DONT_CHECK_UNIX_ACCOUNT   0x04 /* don't check unix account status */
  28 #define USER_INFO_INTERACTIVE_LOGON         0x08 /* Interactive logon */
  29 #define USER_INFO_LOCAL_SAM_ONLY            0x10 /* Only authenticate against the local SAM, do not map missing passwords to NO_SUCH_USER */
  30 #define USER_INFO_INFO3_AND_NO_AUTHZ        0x20 /* Only fill in server_info->info3 and do not do any authorization steps */
  31
  32 enum auth_password_state {
  33         AUTH_PASSWORD_PLAIN = 1,
  34         AUTH_PASSWORD_HASH = 2,
  35         AUTH_PASSWORD_RESPONSE = 3
  36 };
  37
  38 #define AUTH_SESSION_INFO_DEFAULT_GROUPS     0x01 /* Add the user to the default world and network groups */
  39 #define AUTH_SESSION_INFO_AUTHENTICATED      0x02 /* Add the user to the 'authenticated users' group */
  40 #define AUTH_SESSION_INFO_SIMPLE_PRIVILEGES  0x04 /* Use a trivial map between users and privilages, rather than a DB */
  41 #define AUTH_SESSION_INFO_UNIX_TOKEN         0x08 /* The returned token must have the unix_token and unix_info elements provided */
  42
  43 struct auth_usersupplied_info
  44 {
  45         const char *workstation_name;
  46         const struct tsocket_address *remote_host;
  47
  48         uint32_t logon_parameters;
  49
  50         bool mapped_state;
  51         bool was_mapped;
  52         /* the values the client gives us */
  53         struct {
  54                 const char *account_name;
  55                 const char *domain_name;
  56         } client, mapped;
  57
  58         enum auth_password_state password_state;
  59
  60         struct {
  61                 struct {
  62                         DATA_BLOB lanman;
  63                         DATA_BLOB nt;
  64                 } response;
  65                 struct {
  66                         struct samr_Password *lanman;
  67                         struct samr_Password *nt;
  68                 } hash;
  69
  70                 char *plaintext;
  71         } password;
  72         uint32_t flags;
  73 };
  74
  75 struct auth_method_context;
  76 struct tevent_context;
  77 struct imessaging_context;
  78 struct loadparm_context;
  79 struct ldb_context;
  80 struct smb_krb5_context;
  81
  82 #define AUTH_METHOD_LOCAL_SAM 0x01
  83
  84 struct auth4_context {
  85         struct {
  86                 /* Who set this up in the first place? */
  87                 const char *set_by;
  88
  89                 DATA_BLOB data;
  90         } challenge;
  91
  92         /* methods, in the order they should be called */
  93         struct auth_method_context *methods;
  94
  95         /* the event context to use for calls that can block */
  96         struct tevent_context *event_ctx;
  97
  98         /* the messaging context which can be used by backends */
  99         struct imessaging_context *msg_ctx;
 100
 101         /* loadparm context */
 102         struct loadparm_context *lp_ctx;
 103
 104         /* SAM database for this local machine - to fill in local groups, or to authenticate local NTLM users */
 105         struct ldb_context *sam_ctx;
 106
 107         /* Private data for the callbacks on this auth context */
 108         void *private_data;
 109
 110         NTSTATUS (*check_ntlm_password)(struct auth4_context *auth_ctx,
 111                                         TALLOC_CTX *mem_ctx,
 112                                         const struct auth_usersupplied_info *user_info,
 113                                         void **server_returned_info,
 114                                         DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key);
 115
 116         NTSTATUS (*get_ntlm_challenge)(struct auth4_context *auth_ctx, uint8_t chal[8]);
 117
 118         NTSTATUS (*set_ntlm_challenge)(struct auth4_context *auth_ctx, const uint8_t chal[8], const char *set_by);
 119
 120         NTSTATUS (*generate_session_info)(struct auth4_context *auth_context,
 121                                           TALLOC_CTX *mem_ctx,
 122                                           void *server_returned_info,
 123                                           const char *original_user_name,
 124                                           uint32_t session_info_flags,
 125                                           struct auth_session_info **session_info);
 126
 127         NTSTATUS (*generate_session_info_pac)(struct auth4_context *auth_ctx,
 128                                               TALLOC_CTX *mem_ctx,
 129                                               struct smb_krb5_context *smb_krb5_context,
 130                                               DATA_BLOB *pac_blob,
 131                                               const char *principal_name,
 132                                               const struct tsocket_address *remote_address,
 133                                               uint32_t session_info_flags,
 134                                               struct auth_session_info **session_info);
 135 };
 136
 137 #endif