source4/auth/ntlm/auth_developer.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Generic authentication types
   4    Copyright (C) Andrew Bartlett         2001-2002
   5    Copyright (C) Jelmer Vernooij              2002
   6    Copyright (C) Stefan Metzmacher            2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include <tevent.h>
  24 #include "auth/auth.h"
  25 #include "auth/ntlm/auth_proto.h"
  26 #include "libcli/security/security.h"
  27 #include "lib/util/tevent_ntstatus.h"
  28
  29 #undef DBGC_CLASS
  30 #define DBGC_CLASS DBGC_AUTH
  31
  32 #undef strncasecmp
  33
  34 _PUBLIC_ NTSTATUS auth4_developer_init(TALLOC_CTX *);
  35
  36 static NTSTATUS name_to_ntstatus_want_check(struct auth_method_context *ctx,
  37                                             TALLOC_CTX *mem_ctx,
  38                                             const struct auth_usersupplied_info *user_info)
  39 {
  40         return NT_STATUS_OK;
  41 }
  42
  43 /**
  44  * Return an error based on username
  45  *
  46  * This function allows the testing of obscure errors, as well as the generation
  47  * of NT_STATUS -> DOS error mapping tables.
  48  *
  49  * This module is of no value to end-users.
  50  *
  51  * The password is ignored.
  52  *
  53  * @return An NTSTATUS value based on the username
  54  **/
  55
  56 static NTSTATUS name_to_ntstatus_check_password(struct auth_method_context *ctx,
  57                                                 TALLOC_CTX *mem_ctx,
  58                                                 const struct auth_usersupplied_info *user_info,
  59                                                 struct auth_user_info_dc **_user_info_dc,
  60                                                 bool *authoritative)
  61 {
  62         NTSTATUS nt_status;
  63         struct auth_user_info_dc *user_info_dc;
  64         struct auth_user_info *info;
  65         uint32_t error_num;
  66         const char *user;
  67
  68         user = user_info->client.account_name;
  69
  70         if (strncasecmp("NT_STATUS", user, strlen("NT_STATUS")) == 0) {
  71                 nt_status = nt_status_string_to_code(user);
  72         } else {
  73                 error_num = strtoul(user, NULL, 16);
  74                 DEBUG(5,("name_to_ntstatus_check_password: Error for user %s was 0x%08X\n", user, error_num));
  75                 nt_status = NT_STATUS(error_num);
  76         }
  77         NT_STATUS_NOT_OK_RETURN(nt_status);
  78
  79         user_info_dc = talloc_zero(mem_ctx, struct auth_user_info_dc);
  80         NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
  81
  82         /* This returns a pointer to a struct dom_sid, which is the
  83          * same as a 1 element list of struct dom_sid */
  84         user_info_dc->num_sids = 1;
  85         user_info_dc->sids = talloc(user_info_dc, struct auth_SidAttr);
  86         NT_STATUS_HAVE_NO_MEMORY(user_info_dc->sids);
  87
  88         user_info_dc->sids->sid = global_sid_Anonymous;
  89         user_info_dc->sids->attrs = SE_GROUP_DEFAULT_FLAGS;
  90
  91         /* annoying, but the Anonymous really does have a session key,
  92            and it is all zeros! */
  93         user_info_dc->user_session_key = data_blob_talloc(user_info_dc, NULL, 16);
  94         NT_STATUS_HAVE_NO_MEMORY(user_info_dc->user_session_key.data);
  95
  96         user_info_dc->lm_session_key = data_blob_talloc(user_info_dc, NULL, 16);
  97         NT_STATUS_HAVE_NO_MEMORY(user_info_dc->lm_session_key.data);
  98
  99         data_blob_clear(&user_info_dc->user_session_key);
 100         data_blob_clear(&user_info_dc->lm_session_key);
 101
 102         user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
 103         NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
 104
 105         info->account_name = talloc_asprintf(user_info_dc, "NAME TO NTSTATUS %s ANONYMOUS LOGON", user);
 106         NT_STATUS_HAVE_NO_MEMORY(info->account_name);
 107
 108         info->domain_name = talloc_strdup(user_info_dc, "NT AUTHORITY");
 109         NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
 110
 111         info->full_name = talloc_asprintf(user_info_dc, "NAME TO NTSTATUS %s Anonymous Logon", user);
 112         NT_STATUS_HAVE_NO_MEMORY(info->full_name);
 113
 114         info->logon_script = talloc_strdup(user_info_dc, "");
 115         NT_STATUS_HAVE_NO_MEMORY(info->logon_script);
 116
 117         info->profile_path = talloc_strdup(user_info_dc, "");
 118         NT_STATUS_HAVE_NO_MEMORY(info->profile_path);
 119
 120         info->home_directory = talloc_strdup(user_info_dc, "");
 121         NT_STATUS_HAVE_NO_MEMORY(info->home_directory);
 122
 123         info->home_drive = talloc_strdup(user_info_dc, "");
 124         NT_STATUS_HAVE_NO_MEMORY(info->home_drive);
 125
 126         info->last_logon = 0;
 127         info->last_logoff = 0;
 128         info->acct_expiry = 0;
 129         info->last_password_change = 0;
 130         info->allow_password_change = 0;
 131         info->force_password_change = 0;
 132
 133         info->logon_count = 0;
 134         info->bad_password_count = 0;
 135
 136         info->acct_flags = ACB_NORMAL;
 137
 138         info->user_flags = 0;
 139
 140         *_user_info_dc = user_info_dc;
 141
 142         return nt_status;
 143 }
 144
 145 struct name_to_ntstatus_check_password_state {
 146         struct auth_user_info_dc *user_info_dc;
 147         bool authoritative;
 148 };
 149
 150 static struct tevent_req *name_to_ntstatus_check_password_send(
 151         TALLOC_CTX *mem_ctx,
 152         struct tevent_context *ev,
 153         struct auth_method_context *ctx,
 154         const struct auth_usersupplied_info *user_info)
 155 {
 156         struct tevent_req *req = NULL;
 157         struct name_to_ntstatus_check_password_state *state = NULL;
 158         NTSTATUS status;
 159
 160         req = tevent_req_create(
 161                 mem_ctx,
 162                 &state,
 163                 struct name_to_ntstatus_check_password_state);
 164         if (req == NULL) {
 165                 return NULL;
 166         }
 167
 168         status = name_to_ntstatus_check_password(
 169                 ctx,
 170                 state,
 171                 user_info,
 172                 &state->user_info_dc,
 173                 &state->authoritative);
 174         if (tevent_req_nterror(req, status)) {
 175                 return tevent_req_post(req, ev);
 176         }
 177         tevent_req_done(req);
 178         return tevent_req_post(req, ev);
 179 }
 180
 181 static NTSTATUS name_to_ntstatus_check_password_recv(
 182         struct tevent_req *req,
 183         TALLOC_CTX *mem_ctx,
 184         struct auth_user_info_dc **interim_info,
 185         const struct authn_audit_info **client_audit_info,
 186         const struct authn_audit_info **server_audit_info,
 187         bool *authoritative)
 188 {
 189         struct name_to_ntstatus_check_password_state *state = tevent_req_data(
 190                 req, struct name_to_ntstatus_check_password_state);
 191         NTSTATUS status;
 192
 193         *authoritative = state->authoritative;
 194         *client_audit_info = NULL;
 195         *server_audit_info = NULL;
 196
 197         if (tevent_req_is_nterror(req, &status)) {
 198                 tevent_req_received(req);
 199                 return status;
 200         }
 201         *interim_info = talloc_move(mem_ctx, &state->user_info_dc);
 202         tevent_req_received(req);
 203         return NT_STATUS_OK;
 204 }
 205
 206 static const struct auth_operations name_to_ntstatus_auth_ops = {
 207         .name           = "name_to_ntstatus",
 208         .want_check     = name_to_ntstatus_want_check,
 209         .check_password_send    = name_to_ntstatus_check_password_send,
 210         .check_password_recv    = name_to_ntstatus_check_password_recv,
 211 };
 212
 213 _PUBLIC_ NTSTATUS auth4_developer_init(TALLOC_CTX *ctx)
 214 {
 215         NTSTATUS ret;
 216
 217         ret = auth_register(ctx, &name_to_ntstatus_auth_ops);
 218         if (!NT_STATUS_IS_OK(ret)) {
 219                 DEBUG(0,("Failed to register 'name_to_ntstatus' auth backend!\n"));
 220                 return ret;
 221         }
 222
 223         return ret;
 224 }