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/*
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "auth/auth.h"
#include "librpc/gen_ndr/ndr_samr.h"
#include "librpc/gen_ndr/ndr_security.h"
/**
* 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;
fstring user;
uint32_t error_num;
fstrcpy(user, user_info->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);
}
if (!NT_STATUS_IS_OK(nt_status)) {
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,
.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_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_NOT_IMPLEMENTED;
}
static struct auth_operations fixed_challenge_auth_ops = {
.name = "fixed_challenge",
.get_challenge = fixed_challenge_get_challenge,
.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;
}
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