source/include/auth.h

   1 #ifndef _SMBAUTH_H_
   2 #define _SMBAUTH_H_
   3 /*
   4    Unix SMB/CIFS implementation.
   5    Standardised Authentication types
   6    Copyright (C) Andrew Bartlett 2001
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 typedef struct auth_usersupplied_info {
  23         DATA_BLOB lm_resp;
  24         DATA_BLOB nt_resp;
  25         DATA_BLOB lm_interactive_pwd;
  26         DATA_BLOB nt_interactive_pwd;
  27         DATA_BLOB plaintext_password;
  28
  29         bool encrypted;
  30
  31         bool was_mapped;              /* Did the username map actually match? */
  32         char *client_domain;          /* domain name string */
  33         char *domain;                 /* domain name after mapping */
  34         char *internal_username;      /* username after mapping */
  35         char *smb_name;               /* username before mapping */
  36         char *wksta_name;             /* workstation name (netbios calling
  37                                        * name) unicode string */
  38
  39         uint32 logon_parameters;
  40
  41 } auth_usersupplied_info;
  42
  43 typedef struct auth_serversupplied_info {
  44         bool guest;
  45
  46         DOM_SID *sids;  /* These SIDs are preliminary between
  47                            check_ntlm_password and the token creation. */
  48         size_t num_sids;
  49
  50         uid_t uid;
  51         gid_t gid;
  52
  53         /* This groups info is needed for when we become_user() for this uid */
  54         size_t n_groups;
  55         gid_t *groups;
  56
  57         /* NT group information taken from the info3 structure */
  58
  59         NT_USER_TOKEN *ptok;
  60
  61         DATA_BLOB user_session_key;
  62         DATA_BLOB lm_session_key;
  63
  64         char *login_server; /* which server authorized the login? */
  65
  66         struct samu *sam_account;
  67
  68         void *pam_handle;
  69
  70         bool was_mapped;        /* Did the username map match? */
  71         char *unix_name;
  72
  73 } auth_serversupplied_info;
  74
  75 struct auth_context {
  76         DATA_BLOB challenge;
  77
  78         /* Who set this up in the first place? */
  79         const char *challenge_set_by;
  80
  81         bool challenge_may_be_modified;
  82
  83         struct auth_methods *challenge_set_method;
  84         /* What order are the various methods in?   Try to stop it changing under us */
  85         struct auth_methods *auth_method_list;
  86
  87         TALLOC_CTX *mem_ctx;
  88         const uint8 *(*get_ntlm_challenge)(struct auth_context *auth_context);
  89         NTSTATUS (*check_ntlm_password)(const struct auth_context *auth_context,
  90                                         const struct auth_usersupplied_info *user_info,
  91                                         struct auth_serversupplied_info **server_info);
  92         NTSTATUS (*nt_status_squash)(NTSTATUS nt_status);
  93         void (*free)(struct auth_context **auth_context);
  94 };
  95
  96 typedef struct auth_methods
  97 {
  98         struct auth_methods *prev, *next;
  99         const char *name; /* What name got this module */
 100
 101         NTSTATUS (*auth)(const struct auth_context *auth_context,
 102                          void *my_private_data,
 103                          TALLOC_CTX *mem_ctx,
 104                          const struct auth_usersupplied_info *user_info,
 105                          auth_serversupplied_info **server_info);
 106
 107         /* If you are using this interface, then you are probably
 108          * getting something wrong.  This interface is only for
 109          * security=server, and makes a number of compromises to allow
 110          * that.  It is not compatible with being a PDC.  */
 111         DATA_BLOB (*get_chal)(const struct auth_context *auth_context,
 112                               void **my_private_data,
 113                               TALLOC_CTX *mem_ctx);
 114
 115         /* Used to keep tabs on things like the cli for SMB server authentication */
 116         void *private_data;
 117
 118 } auth_methods;
 119
 120 typedef NTSTATUS (*auth_init_function)(struct auth_context *, const char *, struct auth_methods **);
 121
 122 struct auth_init_function_entry {
 123         const char *name;
 124         /* Function to create a member of the authmethods list */
 125
 126         auth_init_function init;
 127
 128         struct auth_init_function_entry *prev, *next;
 129 };
 130
 131 typedef struct auth_ntlmssp_state {
 132         TALLOC_CTX *mem_ctx;
 133         struct auth_context *auth_context;
 134         struct auth_serversupplied_info *server_info;
 135         struct ntlmssp_state *ntlmssp_state;
 136 } AUTH_NTLMSSP_STATE;
 137
 138 /* Changed from 1 -> 2 to add the logon_parameters field. */
 139 #define AUTH_INTERFACE_VERSION 2
 140
 141 #endif /* _SMBAUTH_H_ */