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 "auth/auth.h" 24#include "auth/ntlm/auth_proto.h" 25#include "libcli/security/security.h" 26#include "librpc/gen_ndr/ndr_samr.h" 27 28static NTSTATUS name_to_ntstatus_want_check(struct auth_method_context *ctx, 29 TALLOC_CTX *mem_ctx, 30 const struct auth_usersupplied_info *user_info) 31{ 32 return NT_STATUS_OK; 33} 34 35/** 36 * Return an error based on username 37 * 38 * This function allows the testing of obsure errors, as well as the generation 39 * of NT_STATUS -> DOS error mapping tables. 40 * 41 * This module is of no value to end-users. 42 * 43 * The password is ignored. 44 * 45 * @return An NTSTATUS value based on the username 46 **/ 47 48static NTSTATUS name_to_ntstatus_check_password(struct auth_method_context *ctx, 49 TALLOC_CTX *mem_ctx, 50 const struct auth_usersupplied_info *user_info, 51 struct auth_serversupplied_info **_server_info) 52{ 53 NTSTATUS nt_status; 54 struct auth_serversupplied_info *server_info; 55 uint32_t error_num; 56 const char *user; 57 58 user = user_info->client.account_name; 59 60 if (strncasecmp("NT_STATUS", user, strlen("NT_STATUS")) == 0) { 61 nt_status = nt_status_string_to_code(user); 62 } else { 63 error_num = strtoul(user, NULL, 16); 64 DEBUG(5,("name_to_ntstatus_check_password: Error for user %s was 0x%08X\n", user, error_num)); 65 nt_status = NT_STATUS(error_num); 66 } 67 NT_STATUS_NOT_OK_RETURN(nt_status); 68 69 server_info = talloc(mem_ctx, struct auth_serversupplied_info); 70 NT_STATUS_HAVE_NO_MEMORY(server_info); 71 72 server_info->account_sid = dom_sid_parse_talloc(server_info, SID_NT_ANONYMOUS); 73 NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid); 74 75 /* is this correct? */ 76 server_info->primary_group_sid = dom_sid_parse_talloc(server_info, SID_BUILTIN_GUESTS); 77 NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid); 78 79 server_info->n_domain_groups = 0; 80 server_info->domain_groups = NULL; 81 82 /* annoying, but the Anonymous really does have a session key, 83 and it is all zeros! */ 84 server_info->user_session_key = data_blob_talloc(server_info, NULL, 16); 85 NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); 86 87 server_info->lm_session_key = data_blob_talloc(server_info, NULL, 16); 88 NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); 89 90 data_blob_clear(&server_info->user_session_key); 91 data_blob_clear(&server_info->lm_session_key); 92 93 server_info->account_name = talloc_asprintf(server_info, "NAME TO NTSTATUS %s ANONYMOUS LOGON", user); 94 NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); 95 96 server_info->domain_name = talloc_strdup(server_info, "NT AUTHORITY"); 97 NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); 98 99 server_info->full_name = talloc_asprintf(server_info, "NAME TO NTSTATUS %s Anonymous Logon", user); 100 NT_STATUS_HAVE_NO_MEMORY(server_info->full_name); 101 102 server_info->logon_script = talloc_strdup(server_info, ""); 103 NT_STATUS_HAVE_NO_MEMORY(server_info->logon_script); 104 105 server_info->profile_path = talloc_strdup(server_info, ""); 106 NT_STATUS_HAVE_NO_MEMORY(server_info->profile_path); 107 108 server_info->home_directory = talloc_strdup(server_info, ""); 109 NT_STATUS_HAVE_NO_MEMORY(server_info->home_directory); 110 111 server_info->home_drive = talloc_strdup(server_info, ""); 112 NT_STATUS_HAVE_NO_MEMORY(server_info->home_drive); 113 114 server_info->last_logon = 0; 115 server_info->last_logoff = 0; 116 server_info->acct_expiry = 0; 117 server_info->last_password_change = 0; 118 server_info->allow_password_change = 0; 119 server_info->force_password_change = 0; 120 121 server_info->logon_count = 0; 122 server_info->bad_password_count = 0; 123 124 server_info->acct_flags = ACB_NORMAL; 125 126 server_info->authenticated = false; 127 128 *_server_info = server_info; 129 130 return nt_status; 131} 132 133static const struct auth_operations name_to_ntstatus_auth_ops = { 134 .name = "name_to_ntstatus", 135 .get_challenge = auth_get_challenge_not_implemented, 136 .want_check = name_to_ntstatus_want_check, 137 .check_password = name_to_ntstatus_check_password 138}; 139 140/** 141 * Return a 'fixed' challenge instead of a variable one. 142 * 143 * The idea of this function is to make packet snifs consistant 144 * with a fixed challenge, so as to aid debugging. 145 * 146 * This module is of no value to end-users. 147 * 148 * This module does not actually authenticate the user, but 149 * just pretenteds to need a specified challenge. 150 * This module removes *all* security from the challenge-response system 151 * 152 * @return NT_STATUS_UNSUCCESSFUL 153 **/ 154static NTSTATUS fixed_challenge_get_challenge(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, DATA_BLOB *_blob) 155{ 156 DATA_BLOB blob; 157 const char *challenge = "I am a teapot"; 158 159 blob = data_blob_talloc(mem_ctx, challenge, 8); 160 NT_STATUS_HAVE_NO_MEMORY(blob.data); 161 162 *_blob = blob; 163 return NT_STATUS_OK; 164} 165 166static NTSTATUS fixed_challenge_want_check(struct auth_method_context *ctx, 167 TALLOC_CTX *mem_ctx, 168 const struct auth_usersupplied_info *user_info) 169{ 170 /* don't handle any users */ 171 return NT_STATUS_NOT_IMPLEMENTED; 172} 173 174static NTSTATUS fixed_challenge_check_password(struct auth_method_context *ctx, 175 TALLOC_CTX *mem_ctx, 176 const struct auth_usersupplied_info *user_info, 177 struct auth_serversupplied_info **_server_info) 178{ 179 /* don't handle any users */ 180 return NT_STATUS_NO_SUCH_USER; 181} 182 183static const struct auth_operations fixed_challenge_auth_ops = { 184 .name = "fixed_challenge", 185 .get_challenge = fixed_challenge_get_challenge, 186 .want_check = fixed_challenge_want_check, 187 .check_password = fixed_challenge_check_password 188}; 189 190_PUBLIC_ NTSTATUS auth_developer_init(void) 191{ 192 NTSTATUS ret; 193 194 ret = auth_register(&name_to_ntstatus_auth_ops); 195 if (!NT_STATUS_IS_OK(ret)) { 196 DEBUG(0,("Failed to register 'name_to_ntstatus' auth backend!\n")); 197 return ret; 198 } 199 200 ret = auth_register(&fixed_challenge_auth_ops); 201 if (!NT_STATUS_IS_OK(ret)) { 202 DEBUG(0,("Failed to register 'fixed_challenge' auth backend!\n")); 203 return ret; 204 } 205 206 return ret; 207} 208