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(struct auth_usersupplied_info **ret_user_info,
  45                         const char *smb_name,
  46                         const char *internal_username,
  47                         const char *client_domain,
  48                         const char *domain,
  49                         const char *workstation_name,
  50                         const struct tsocket_address *remote_address,
  51                         const DATA_BLOB *lm_pwd,
  52                         const DATA_BLOB *nt_pwd,
  53                         const struct samr_Password *lm_interactive_pwd,
  54                         const struct samr_Password *nt_interactive_pwd,
  55                         const char *plaintext_password,
  56                         enum auth_password_state password_state)
  57 {
  58         struct auth_usersupplied_info *user_info;
  59         *ret_user_info = NULL;
  60
  61         DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
  62
  63         /* FIXME: Have the caller provide a talloc context of the
  64          * correct lifetime (possibly talloc_tos(), but it depends on
  65          * the caller) */
  66         user_info = talloc_zero(NULL, struct auth_usersupplied_info);
  67         if (user_info == NULL) {
  68                 DEBUG(0,("talloc failed for user_info\n"));
  69                 return NT_STATUS_NO_MEMORY;
  70         }
  71
  72         DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
  73
  74         user_info->client.account_name = talloc_strdup(user_info, smb_name);
  75         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.account_name, user_info);
  76
  77         user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
  78         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.account_name, user_info);
  79
  80         user_info->mapped.domain_name = talloc_strdup(user_info, domain);
  81         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.domain_name, user_info);
  82
  83         user_info->client.domain_name = talloc_strdup(user_info, client_domain);
  84         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.domain_name, user_info);
  85
  86         user_info->workstation_name = talloc_strdup(user_info, workstation_name);
  87         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->workstation_name, user_info);
  88
  89         user_info->remote_host = tsocket_address_copy(remote_address, user_info);
  90         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->remote_host, user_info);
  91
  92         DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
  93
  94         if (lm_pwd && lm_pwd->data) {
  95                 user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
  96                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.lanman.data, user_info);
  97         }
  98         if (nt_pwd && nt_pwd->data) {
  99                 user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
 100                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.nt.data, user_info);
 101         }
 102         if (lm_interactive_pwd) {
 103                 user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
 104                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.lanman, user_info);
 105                 memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
 106                        sizeof(user_info->password.hash.lanman->hash));
 107                 talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
 108         }
 109
 110         if (nt_interactive_pwd) {
 111                 user_info->password.hash.nt = talloc(user_info, struct samr_Password);
 112                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.nt, user_info);
 113                 memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
 114                        sizeof(user_info->password.hash.nt->hash));
 115                 talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
 116         }
 117
 118         if (plaintext_password) {
 119                 user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
 120                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.plaintext, user_info);
 121                 talloc_set_destructor(user_info->password.plaintext, clear_string);
 122         }
 123
 124         user_info->password_state = password_state;
 125
 126         user_info->logon_parameters = 0;
 127
 128         DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
 129         *ret_user_info = user_info;
 130         return NT_STATUS_OK;
 131 }
 132
 133 /***************************************************************************
 134  Free a user_info struct
 135 ***************************************************************************/
 136
 137 void free_user_info(struct auth_usersupplied_info **user_info)
 138 {
 139         TALLOC_FREE(*user_info);
 140 }