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 struct tsocket_address *local_address,
  53                         const char *service_description,
  54                         const DATA_BLOB *lm_pwd,
  55                         const DATA_BLOB *nt_pwd,
  56                         const struct samr_Password *lm_interactive_pwd,
  57                         const struct samr_Password *nt_interactive_pwd,
  58                         const char *plaintext_password,
  59                         enum auth_password_state password_state)
  60 {
  61         struct auth_usersupplied_info *user_info;
  62         *ret_user_info = NULL;
  63
  64         DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
  65
  66         user_info = talloc_zero(mem_ctx, 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         if (user_info->client.account_name == NULL) {
  76                 goto nomem;
  77         }
  78
  79         user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
  80         if (user_info->mapped.account_name == NULL) {
  81                 goto nomem;
  82         }
  83
  84         user_info->mapped.domain_name = talloc_strdup(user_info, domain);
  85         if (user_info->mapped.domain_name == NULL) {
  86                 goto nomem;
  87         }
  88
  89         user_info->client.domain_name = talloc_strdup(user_info, client_domain);
  90         if (user_info->client.domain_name == NULL) {
  91                 goto nomem;
  92         }
  93
  94         user_info->workstation_name = talloc_strdup(user_info, workstation_name);
  95         if (user_info->workstation_name == NULL) {
  96                 goto nomem;
  97         }
  98
  99         user_info->remote_host = tsocket_address_copy(remote_address, user_info);
 100         if (user_info->remote_host == NULL) {
 101                 goto nomem;
 102         }
 103
 104         if (local_address != NULL) {
 105                 user_info->local_host = tsocket_address_copy(local_address,
 106                                                              user_info);
 107                 if (user_info->local_host == NULL) {
 108                         goto nomem;
 109                 }
 110         }
 111
 112         user_info->service_description = talloc_strdup(user_info, service_description);
 113         if (user_info->service_description == NULL) {
 114                 goto nomem;
 115         }
 116
 117         DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
 118
 119         if (lm_pwd && lm_pwd->data) {
 120                 user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
 121                 if (user_info->password.response.lanman.data == NULL) {
 122                         goto nomem;
 123                 }
 124         }
 125         if (nt_pwd && nt_pwd->data) {
 126                 user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
 127                 if (user_info->password.response.nt.data == NULL) {
 128                         goto nomem;
 129                 }
 130         }
 131         if (lm_interactive_pwd) {
 132                 user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
 133                 if (user_info->password.hash.lanman == NULL) {
 134                         goto nomem;
 135                 }
 136                 memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
 137                        sizeof(user_info->password.hash.lanman->hash));
 138                 talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
 139         }
 140
 141         if (nt_interactive_pwd) {
 142                 user_info->password.hash.nt = talloc(user_info, struct samr_Password);
 143                 if (user_info->password.hash.nt == NULL) {
 144                         goto nomem;
 145                 }
 146                 memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
 147                        sizeof(user_info->password.hash.nt->hash));
 148                 talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
 149         }
 150
 151         if (plaintext_password) {
 152                 user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
 153                 if (user_info->password.plaintext == NULL) {
 154                         goto nomem;
 155                 }
 156                 talloc_set_destructor(user_info->password.plaintext, clear_string);
 157         }
 158
 159         user_info->password_state = password_state;
 160
 161         user_info->logon_parameters = 0;
 162
 163         DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
 164         *ret_user_info = user_info;
 165         return NT_STATUS_OK;
 166 nomem:
 167         TALLOC_FREE(user_info);
 168         return NT_STATUS_NO_MEMORY;
 169 }