/* Unix SMB/CIFS implementation. Generic authentication types Copyright (C) Andrew Bartlett 2001-2002 Copyright (C) Jelmer Vernooij 2002 Copyright (C) Stefan Metzmacher 2005 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "auth/auth.h" #include "libcli/security/security.h" #include "librpc/gen_ndr/ndr_samr.h" static NTSTATUS name_to_ntstatus_want_check(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, const struct auth_usersupplied_info *user_info) { return NT_STATUS_OK; } /** * Return an error based on username * * This function allows the testing of obsure errors, as well as the generation * of NT_STATUS -> DOS error mapping tables. * * This module is of no value to end-users. * * The password is ignored. * * @return An NTSTATUS value based on the username **/ static NTSTATUS name_to_ntstatus_check_password(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, const struct auth_usersupplied_info *user_info, struct auth_serversupplied_info **_server_info) { NTSTATUS nt_status; struct auth_serversupplied_info *server_info; uint32_t error_num; const char *user; user = user_info->client.account_name; if (strncasecmp("NT_STATUS", user, strlen("NT_STATUS")) == 0) { nt_status = nt_status_string_to_code(user); } else { error_num = strtoul(user, NULL, 16); DEBUG(5,("name_to_ntstatus_check_password: Error for user %s was 0x%08X\n", user, error_num)); nt_status = NT_STATUS(error_num); } NT_STATUS_NOT_OK_RETURN(nt_status); server_info = talloc(mem_ctx, struct auth_serversupplied_info); NT_STATUS_HAVE_NO_MEMORY(server_info); server_info->account_sid = dom_sid_parse_talloc(server_info, SID_NT_ANONYMOUS); NT_STATUS_HAVE_NO_MEMORY(server_info->account_sid); /* is this correct? */ server_info->primary_group_sid = dom_sid_parse_talloc(server_info, SID_BUILTIN_GUESTS); NT_STATUS_HAVE_NO_MEMORY(server_info->primary_group_sid); server_info->n_domain_groups = 0; server_info->domain_groups = NULL; /* annoying, but the Anonymous really does have a session key, and it is all zeros! */ server_info->user_session_key = data_blob_talloc(server_info, NULL, 16); NT_STATUS_HAVE_NO_MEMORY(server_info->user_session_key.data); server_info->lm_session_key = data_blob_talloc(server_info, NULL, 16); NT_STATUS_HAVE_NO_MEMORY(server_info->lm_session_key.data); data_blob_clear(&server_info->user_session_key); data_blob_clear(&server_info->lm_session_key); server_info->account_name = talloc_asprintf(server_info, "NAME TO NTSTATUS %s ANONYMOUS LOGON", user); NT_STATUS_HAVE_NO_MEMORY(server_info->account_name); server_info->domain_name = talloc_strdup(server_info, "NT AUTHORITY"); NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name); server_info->full_name = talloc_asprintf(server_info, "NAME TO NTSTATUS %s Anonymous Logon", user); NT_STATUS_HAVE_NO_MEMORY(server_info->full_name); server_info->logon_script = talloc_strdup(server_info, ""); NT_STATUS_HAVE_NO_MEMORY(server_info->logon_script); server_info->profile_path = talloc_strdup(server_info, ""); NT_STATUS_HAVE_NO_MEMORY(server_info->profile_path); server_info->home_directory = talloc_strdup(server_info, ""); NT_STATUS_HAVE_NO_MEMORY(server_info->home_directory); server_info->home_drive = talloc_strdup(server_info, ""); NT_STATUS_HAVE_NO_MEMORY(server_info->home_drive); server_info->last_logon = 0; server_info->last_logoff = 0; server_info->acct_expiry = 0; server_info->last_password_change = 0; server_info->allow_password_change = 0; server_info->force_password_change = 0; server_info->logon_count = 0; server_info->bad_password_count = 0; server_info->acct_flags = ACB_NORMAL; server_info->authenticated = False; *_server_info = server_info; return nt_status; } static struct auth_operations name_to_ntstatus_auth_ops = { .name = "name_to_ntstatus", .get_challenge = auth_get_challenge_not_implemented, .want_check = name_to_ntstatus_want_check, .check_password = name_to_ntstatus_check_password }; /** * Return a 'fixed' challenge instead of a variable one. * * The idea of this function is to make packet snifs consistant * with a fixed challenge, so as to aid debugging. * * This module is of no value to end-users. * * This module does not actually authenticate the user, but * just pretenteds to need a specified challenge. * This module removes *all* security from the challenge-response system * * @return NT_STATUS_UNSUCCESSFUL **/ static NTSTATUS fixed_challenge_get_challenge(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, DATA_BLOB *_blob) { DATA_BLOB blob; const char *challenge = "I am a teapot"; blob = data_blob_talloc(mem_ctx, challenge, 8); NT_STATUS_HAVE_NO_MEMORY(blob.data); *_blob = blob; return NT_STATUS_OK; } static NTSTATUS fixed_challenge_want_check(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, const struct auth_usersupplied_info *user_info) { /* don't handle any users */ return NT_STATUS_NOT_IMPLEMENTED; } static NTSTATUS fixed_challenge_check_password(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, const struct auth_usersupplied_info *user_info, struct auth_serversupplied_info **_server_info) { /* don't handle any users */ return NT_STATUS_NO_SUCH_USER; } static struct auth_operations fixed_challenge_auth_ops = { .name = "fixed_challenge", .get_challenge = fixed_challenge_get_challenge, .want_check = fixed_challenge_want_check, .check_password = fixed_challenge_check_password }; NTSTATUS auth_developer_init(void) { NTSTATUS ret; ret = auth_register(&name_to_ntstatus_auth_ops); if (!NT_STATUS_IS_OK(ret)) { DEBUG(0,("Failed to register 'name_to_ntstatus' auth backend!\n")); return ret; } ret = auth_register(&fixed_challenge_auth_ops); if (!NT_STATUS_IS_OK(ret)) { DEBUG(0,("Failed to register 'fixed_challenge' auth backend!\n")); return ret; } return ret; }