source4/auth/ntlm/auth_simple.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    auth functions
   5
   6    Copyright (C) Simo Sorce 2005
   7    Copyright (C) Andrew Tridgell 2005
   8    Copyright (C) Andrew Bartlett 2005
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "auth/auth.h"
  26
  27 /*
  28  It's allowed to pass NULL as session_info,
  29  when the caller doesn't need a session_info
  30 */
  31 _PUBLIC_ NTSTATUS authenticate_username_pw(TALLOC_CTX *mem_ctx,
  32                                            struct tevent_context *ev,
  33                                            struct imessaging_context *msg,
  34                                            struct loadparm_context *lp_ctx,
  35                                            const char *nt4_domain,
  36                                            const char *nt4_username,
  37                                            const char *password,
  38                                            const uint32_t logon_parameters,
  39                                            struct auth_session_info **session_info)
  40 {
  41         struct auth4_context *auth_context;
  42         struct auth_usersupplied_info *user_info;
  43         struct auth_user_info_dc *user_info_dc;
  44         NTSTATUS nt_status;
  45         TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
  46
  47         if (!tmp_ctx) {
  48                 return NT_STATUS_NO_MEMORY;
  49         }
  50
  51         nt_status = auth_context_create(tmp_ctx,
  52                                         ev, msg,
  53                                         lp_ctx,
  54                                         &auth_context);
  55         if (!NT_STATUS_IS_OK(nt_status)) {
  56                 talloc_free(tmp_ctx);
  57                 return nt_status;
  58         }
  59
  60         user_info = talloc_zero(tmp_ctx, struct auth_usersupplied_info);
  61         if (!user_info) {
  62                 talloc_free(tmp_ctx);
  63                 return NT_STATUS_NO_MEMORY;
  64         }
  65
  66         user_info->mapped_state = true;
  67         user_info->client.account_name = nt4_username;
  68         user_info->mapped.account_name = nt4_username;
  69         user_info->client.domain_name = nt4_domain;
  70         user_info->mapped.domain_name = nt4_domain;
  71
  72         user_info->workstation_name = NULL;
  73
  74         user_info->remote_host = NULL;
  75
  76         user_info->password_state = AUTH_PASSWORD_PLAIN;
  77         user_info->password.plaintext = talloc_strdup(user_info, password);
  78
  79         user_info->flags = USER_INFO_CASE_INSENSITIVE_USERNAME |
  80                 USER_INFO_DONT_CHECK_UNIX_ACCOUNT;
  81
  82         user_info->logon_parameters = logon_parameters |
  83                 MSV1_0_CLEARTEXT_PASSWORD_ALLOWED |
  84                 MSV1_0_CLEARTEXT_PASSWORD_SUPPLIED;
  85
  86         nt_status = auth_check_password(auth_context, tmp_ctx, user_info, &user_info_dc);
  87         if (!NT_STATUS_IS_OK(nt_status)) {
  88                 talloc_free(tmp_ctx);
  89                 return nt_status;
  90         }
  91
  92         if (session_info) {
  93                 uint32_t flags = AUTH_SESSION_INFO_DEFAULT_GROUPS;
  94                 if (user_info_dc->info->authenticated) {
  95                         flags |= AUTH_SESSION_INFO_AUTHENTICATED;
  96                 }
  97                 nt_status = auth_context->generate_session_info(auth_context,
  98                                                                 tmp_ctx,
  99                                                                 user_info_dc,
 100                                                                 nt4_username,
 101                                                                 flags,
 102                                                                 session_info);
 103
 104                 if (NT_STATUS_IS_OK(nt_status)) {
 105                         talloc_steal(mem_ctx, *session_info);
 106                 }
 107         }
 108
 109         talloc_free(tmp_ctx);
 110         return nt_status;
 111 }
 112