source3/auth/user_info.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Authentication utility functions
   4    Copyright (C) Volker Lendecke 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 #include "includes.h"
  21 #include "librpc/gen_ndr/samr.h"
  22
  23 #undef DBGC_CLASS
  24 #define DBGC_CLASS DBGC_AUTH
  25
  26 static int clear_samr_Password(struct samr_Password *password)
  27 {
  28         memset(password->hash, '\0', sizeof(password->hash));
  29         return 0;
  30 }
  31
  32 static int clear_string(char *password)
  33 {
  34         memset(password, '\0', strlen(password));
  35         return 0;
  36 }
  37
  38 /****************************************************************************
  39  Create an auth_usersupplied_data structure
  40 ****************************************************************************/
  41
  42 NTSTATUS make_user_info(struct auth_usersupplied_info **ret_user_info,
  43                         const char *smb_name,
  44                         const char *internal_username,
  45                         const char *client_domain,
  46                         const char *domain,
  47                         const char *workstation_name,
  48                         const DATA_BLOB *lm_pwd,
  49                         const DATA_BLOB *nt_pwd,
  50                         const struct samr_Password *lm_interactive_pwd,
  51                         const struct samr_Password *nt_interactive_pwd,
  52                         const char *plaintext_password,
  53                         enum auth_password_state password_state)
  54 {
  55         struct auth_usersupplied_info *user_info;
  56         *ret_user_info = NULL;
  57
  58         DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
  59
  60         /* FIXME: Have the caller provide a talloc context of the
  61          * correct lifetime (possibly talloc_tos(), but it depends on
  62          * the caller) */
  63         user_info = talloc_zero(NULL, struct auth_usersupplied_info);
  64         if (user_info == NULL) {
  65                 DEBUG(0,("talloc failed for user_info\n"));
  66                 return NT_STATUS_NO_MEMORY;
  67         }
  68
  69         DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
  70
  71         user_info->client.account_name = talloc_strdup(user_info, smb_name);
  72         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.account_name, user_info);
  73
  74         user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
  75         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.account_name, user_info);
  76
  77         user_info->mapped.domain_name = talloc_strdup(user_info, domain);
  78         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.domain_name, user_info);
  79
  80         user_info->client.domain_name = talloc_strdup(user_info, client_domain);
  81         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.domain_name, user_info);
  82
  83         user_info->workstation_name = talloc_strdup(user_info, workstation_name);
  84         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->workstation_name, user_info);
  85
  86         DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
  87
  88         if (lm_pwd && lm_pwd->data) {
  89                 user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
  90                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.lanman.data, user_info);
  91         }
  92         if (nt_pwd && nt_pwd->data) {
  93                 user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
  94                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.nt.data, user_info);
  95         }
  96         if (lm_interactive_pwd) {
  97                 user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
  98                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.lanman, user_info);
  99                 memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
 100                        sizeof(user_info->password.hash.lanman->hash));
 101                 talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
 102         }
 103
 104         if (nt_interactive_pwd) {
 105                 user_info->password.hash.nt = talloc(user_info, struct samr_Password);
 106                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.nt, user_info);
 107                 memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
 108                        sizeof(user_info->password.hash.nt->hash));
 109                 talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
 110         }
 111
 112         if (plaintext_password) {
 113                 user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
 114                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.plaintext, user_info);
 115                 talloc_set_destructor(user_info->password.plaintext, clear_string);
 116         }
 117
 118         user_info->password_state = password_state;
 119
 120         user_info->logon_parameters = 0;
 121
 122         DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
 123         *ret_user_info = user_info;
 124         return NT_STATUS_OK;
 125 }
 126
 127 /***************************************************************************
 128  Free a user_info struct
 129 ***************************************************************************/
 130
 131 void free_user_info(struct auth_usersupplied_info **user_info)
 132 {
 133         TALLOC_FREE(*user_info);
 134 }