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 "auth.h"
  22 #include "librpc/gen_ndr/samr.h"
  23
  24 #undef DBGC_CLASS
  25 #define DBGC_CLASS DBGC_AUTH
  26
  27 static int clear_samr_Password(struct samr_Password *password)
  28 {
  29         memset(password->hash, '\0', sizeof(password->hash));
  30         return 0;
  31 }
  32
  33 static int clear_string(char *password)
  34 {
  35         memset(password, '\0', strlen(password));
  36         return 0;
  37 }
  38
  39 /****************************************************************************
  40  Create an auth_usersupplied_data structure
  41 ****************************************************************************/
  42
  43 NTSTATUS make_user_info(struct auth_usersupplied_info **ret_user_info,
  44                         const char *smb_name,
  45                         const char *internal_username,
  46                         const char *client_domain,
  47                         const char *domain,
  48                         const char *workstation_name,
  49                         const DATA_BLOB *lm_pwd,
  50                         const DATA_BLOB *nt_pwd,
  51                         const struct samr_Password *lm_interactive_pwd,
  52                         const struct samr_Password *nt_interactive_pwd,
  53                         const char *plaintext_password,
  54                         enum auth_password_state password_state)
  55 {
  56         struct auth_usersupplied_info *user_info;
  57         *ret_user_info = NULL;
  58
  59         DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
  60
  61         /* FIXME: Have the caller provide a talloc context of the
  62          * correct lifetime (possibly talloc_tos(), but it depends on
  63          * the caller) */
  64         user_info = talloc_zero(NULL, struct auth_usersupplied_info);
  65         if (user_info == NULL) {
  66                 DEBUG(0,("talloc failed for user_info\n"));
  67                 return NT_STATUS_NO_MEMORY;
  68         }
  69
  70         DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
  71
  72         user_info->client.account_name = talloc_strdup(user_info, smb_name);
  73         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.account_name, user_info);
  74
  75         user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
  76         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.account_name, user_info);
  77
  78         user_info->mapped.domain_name = talloc_strdup(user_info, domain);
  79         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.domain_name, user_info);
  80
  81         user_info->client.domain_name = talloc_strdup(user_info, client_domain);
  82         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.domain_name, user_info);
  83
  84         user_info->workstation_name = talloc_strdup(user_info, workstation_name);
  85         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->workstation_name, user_info);
  86
  87         DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
  88
  89         if (lm_pwd && lm_pwd->data) {
  90                 user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
  91                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.lanman.data, user_info);
  92         }
  93         if (nt_pwd && nt_pwd->data) {
  94                 user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
  95                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.nt.data, user_info);
  96         }
  97         if (lm_interactive_pwd) {
  98                 user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
  99                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.lanman, user_info);
 100                 memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
 101                        sizeof(user_info->password.hash.lanman->hash));
 102                 talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
 103         }
 104
 105         if (nt_interactive_pwd) {
 106                 user_info->password.hash.nt = talloc(user_info, struct samr_Password);
 107                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.nt, user_info);
 108                 memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
 109                        sizeof(user_info->password.hash.nt->hash));
 110                 talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
 111         }
 112
 113         if (plaintext_password) {
 114                 user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
 115                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.plaintext, user_info);
 116                 talloc_set_destructor(user_info->password.plaintext, clear_string);
 117         }
 118
 119         user_info->password_state = password_state;
 120
 121         user_info->logon_parameters = 0;
 122
 123         DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
 124         *ret_user_info = user_info;
 125         return NT_STATUS_OK;
 126 }
 127
 128 /***************************************************************************
 129  Free a user_info struct
 130 ***************************************************************************/
 131
 132 void free_user_info(struct auth_usersupplied_info **user_info)
 133 {
 134         TALLOC_FREE(*user_info);
 135 }