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 #include "../lib/tsocket/tsocket.h"
  24
  25 #undef DBGC_CLASS
  26 #define DBGC_CLASS DBGC_AUTH
  27
  28 static int clear_samr_Password(struct samr_Password *password)
  29 {
  30         memset(password->hash, '\0', sizeof(password->hash));
  31         return 0;
  32 }
  33
  34 static int clear_string(char *password)
  35 {
  36         memset(password, '\0', strlen(password));
  37         return 0;
  38 }
  39
  40 /****************************************************************************
  41  Create an auth_usersupplied_data structure
  42 ****************************************************************************/
  43
  44 NTSTATUS make_user_info(TALLOC_CTX *mem_ctx,
  45                         struct auth_usersupplied_info **ret_user_info,
  46                         const char *smb_name,
  47                         const char *internal_username,
  48                         const char *client_domain,
  49                         const char *domain,
  50                         const char *workstation_name,
  51                         const struct tsocket_address *remote_address,
  52                         const DATA_BLOB *lm_pwd,
  53                         const DATA_BLOB *nt_pwd,
  54                         const struct samr_Password *lm_interactive_pwd,
  55                         const struct samr_Password *nt_interactive_pwd,
  56                         const char *plaintext_password,
  57                         enum auth_password_state password_state)
  58 {
  59         struct auth_usersupplied_info *user_info;
  60         *ret_user_info = NULL;
  61
  62         DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
  63
  64         user_info = talloc_zero(mem_ctx, 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         if (user_info->client.account_name == NULL) {
  74                 TALLOC_FREE(user_info);
  75                 return NT_STATUS_NO_MEMORY;
  76         }
  77
  78         user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
  79         if (user_info->mapped.account_name == NULL) {
  80                 TALLOC_FREE(user_info);
  81                 return NT_STATUS_NO_MEMORY;
  82         }
  83
  84         user_info->mapped.domain_name = talloc_strdup(user_info, domain);
  85         if (user_info->mapped.domain_name == NULL) {
  86                 TALLOC_FREE(user_info);
  87                 return NT_STATUS_NO_MEMORY;
  88         }
  89
  90         user_info->client.domain_name = talloc_strdup(user_info, client_domain);
  91         if (user_info->client.domain_name == NULL) {
  92                 TALLOC_FREE(user_info);
  93                 return NT_STATUS_NO_MEMORY;
  94         }
  95
  96         user_info->workstation_name = talloc_strdup(user_info, workstation_name);
  97         if (user_info->workstation_name == NULL) {
  98                 TALLOC_FREE(user_info);
  99                 return NT_STATUS_NO_MEMORY;
 100         }
 101
 102         user_info->remote_host = tsocket_address_copy(remote_address, user_info);
 103         if (user_info->remote_host == NULL) {
 104                 TALLOC_FREE(user_info);
 105                 return NT_STATUS_NO_MEMORY;
 106         }
 107
 108         DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
 109
 110         if (lm_pwd && lm_pwd->data) {
 111                 user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
 112                 if (user_info->password.response.lanman.data == NULL) {
 113                         TALLOC_FREE(user_info);
 114                         return NT_STATUS_NO_MEMORY;
 115                 }
 116         }
 117         if (nt_pwd && nt_pwd->data) {
 118                 user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
 119                 if (user_info->password.response.nt.data == NULL) {
 120                         TALLOC_FREE(user_info);
 121                         return NT_STATUS_NO_MEMORY;
 122                 }
 123         }
 124         if (lm_interactive_pwd) {
 125                 user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
 126                 if (user_info->password.hash.lanman == NULL) {
 127                         TALLOC_FREE(user_info);
 128                         return NT_STATUS_NO_MEMORY;
 129                 }
 130                 memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
 131                        sizeof(user_info->password.hash.lanman->hash));
 132                 talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
 133         }
 134
 135         if (nt_interactive_pwd) {
 136                 user_info->password.hash.nt = talloc(user_info, struct samr_Password);
 137                 if (user_info->password.hash.nt == NULL) {
 138                         TALLOC_FREE(user_info);
 139                         return NT_STATUS_NO_MEMORY;
 140                 }
 141                 memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
 142                        sizeof(user_info->password.hash.nt->hash));
 143                 talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
 144         }
 145
 146         if (plaintext_password) {
 147                 user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
 148                 if (user_info->password.plaintext == NULL) {
 149                         TALLOC_FREE(user_info);
 150                         return NT_STATUS_NO_MEMORY;
 151                 }
 152                 talloc_set_destructor(user_info->password.plaintext, clear_string);
 153         }
 154
 155         user_info->password_state = password_state;
 156
 157         user_info->logon_parameters = 0;
 158
 159         DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
 160         *ret_user_info = user_info;
 161         return NT_STATUS_OK;
 162 }