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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 typedef struct auth_usersupplied_info {
  24         DATA_BLOB lm_resp;
  25         DATA_BLOB nt_resp;
  26         DATA_BLOB lm_interactive_pwd;
  27         DATA_BLOB nt_interactive_pwd;
  28         DATA_BLOB plaintext_password;
  29
  30         BOOL encrypted;
  31
  32         BOOL was_mapped;              /* Did the username map actually match? */
  33         char *client_domain;          /* domain name string */
  34         char *domain;                 /* domain name after mapping */
  35         char *internal_username;      /* username after mapping */
  36         char *smb_name;               /* username before mapping */
  37         char *wksta_name;             /* workstation name (netbios calling
  38                                        * name) unicode string */
  39
  40         uint32 logon_parameters;
  41
  42 } auth_usersupplied_info;
  43
  44 typedef struct auth_serversupplied_info {
  45         BOOL guest;
  46
  47         DOM_SID *sids;  /* These SIDs are preliminary between
  48                            check_ntlm_password and the token creation. */
  49         size_t num_sids;
  50
  51         uid_t uid;
  52         gid_t gid;
  53
  54         /* This groups info is needed for when we become_user() for this uid */
  55         size_t n_groups;
  56         gid_t *groups;
  57
  58         /* NT group information taken from the info3 structure */
  59
  60         NT_USER_TOKEN *ptok;
  61
  62         DATA_BLOB user_session_key;
  63         DATA_BLOB lm_session_key;
  64
  65         char *login_server; /* which server authorized the login? */
  66
  67         struct samu *sam_account;
  68
  69         void *pam_handle;
  70
  71         BOOL was_mapped;        /* Did the username map match? */
  72         char *unix_name;
  73
  74 } auth_serversupplied_info;
  75
  76 struct auth_context {
  77         DATA_BLOB challenge;
  78
  79         /* Who set this up in the first place? */
  80         const char *challenge_set_by;
  81
  82         BOOL challenge_may_be_modified;
  83
  84         struct auth_methods *challenge_set_method;
  85         /* What order are the various methods in?   Try to stop it changing under us */
  86         struct auth_methods *auth_method_list;
  87
  88         TALLOC_CTX *mem_ctx;
  89         const uint8 *(*get_ntlm_challenge)(struct auth_context *auth_context);
  90         NTSTATUS (*check_ntlm_password)(const struct auth_context *auth_context,
  91                                         const struct auth_usersupplied_info *user_info,
  92                                         struct auth_serversupplied_info **server_info);
  93         NTSTATUS (*nt_status_squash)(NTSTATUS nt_status);
  94         void (*free)(struct auth_context **auth_context);
  95 };
  96
  97 typedef struct auth_methods
  98 {
  99         struct auth_methods *prev, *next;
 100         const char *name; /* What name got this module */
 101
 102         NTSTATUS (*auth)(const struct auth_context *auth_context,
 103                          void *my_private_data,
 104                          TALLOC_CTX *mem_ctx,
 105                          const struct auth_usersupplied_info *user_info,
 106                          auth_serversupplied_info **server_info);
 107
 108         /* If you are using this interface, then you are probably
 109          * getting something wrong.  This interface is only for
 110          * security=server, and makes a number of compromises to allow
 111          * that.  It is not compatible with being a PDC.  */
 112         DATA_BLOB (*get_chal)(const struct auth_context *auth_context,
 113                               void **my_private_data,
 114                               TALLOC_CTX *mem_ctx);
 115
 116         /* Used to keep tabs on things like the cli for SMB server authentication */
 117         void *private_data;
 118
 119         /* Function to clean up the above arbitary structure */
 120         void (*free_private_data)(void **private_data);
 121
 122         /* Function to send a keepalive message on the above structure */
 123         void (*send_keepalive)(void **private_data);
 124
 125 } auth_methods;
 126
 127 typedef NTSTATUS (*auth_init_function)(struct auth_context *, const char *, struct auth_methods **);
 128
 129 struct auth_init_function_entry {
 130         const char *name;
 131         /* Function to create a member of the authmethods list */
 132
 133         auth_init_function init;
 134
 135         struct auth_init_function_entry *prev, *next;
 136 };
 137
 138 typedef struct auth_ntlmssp_state {
 139         TALLOC_CTX *mem_ctx;
 140         struct auth_context *auth_context;
 141         struct auth_serversupplied_info *server_info;
 142         struct ntlmssp_state *ntlmssp_state;
 143 } AUTH_NTLMSSP_STATE;
 144
 145 /* Changed from 1 -> 2 to add the logon_parameters field. */
 146 #define AUTH_INTERFACE_VERSION 2
 147
 148 #endif /* _SMBAUTH_H_ */