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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 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 "auth/ntlm/auth_proto.h"
#include "libcli/security/security.h"
_PUBLIC_ NTSTATUS auth4_developer_init(void);
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_user_info_dc **_user_info_dc)
{
NTSTATUS nt_status;
struct auth_user_info_dc *user_info_dc;
struct auth_user_info *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);
user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
/* This returns a pointer to a struct dom_sid, which is the
* same as a 1 element list of struct dom_sid */
user_info_dc->num_sids = 1;
user_info_dc->sids = dom_sid_parse_talloc(user_info_dc, SID_NT_ANONYMOUS);
NT_STATUS_HAVE_NO_MEMORY(user_info_dc->sids);
/* annoying, but the Anonymous really does have a session key,
and it is all zeros! */
user_info_dc->user_session_key = data_blob_talloc(user_info_dc, NULL, 16);
NT_STATUS_HAVE_NO_MEMORY(user_info_dc->user_session_key.data);
user_info_dc->lm_session_key = data_blob_talloc(user_info_dc, NULL, 16);
NT_STATUS_HAVE_NO_MEMORY(user_info_dc->lm_session_key.data);
data_blob_clear(&user_info_dc->user_session_key);
data_blob_clear(&user_info_dc->lm_session_key);
user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
info->account_name = talloc_asprintf(user_info_dc, "NAME TO NTSTATUS %s ANONYMOUS LOGON", user);
NT_STATUS_HAVE_NO_MEMORY(info->account_name);
info->domain_name = talloc_strdup(user_info_dc, "NT AUTHORITY");
NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
info->full_name = talloc_asprintf(user_info_dc, "NAME TO NTSTATUS %s Anonymous Logon", user);
NT_STATUS_HAVE_NO_MEMORY(info->full_name);
info->logon_script = talloc_strdup(user_info_dc, "");
NT_STATUS_HAVE_NO_MEMORY(info->logon_script);
info->profile_path = talloc_strdup(user_info_dc, "");
NT_STATUS_HAVE_NO_MEMORY(info->profile_path);
info->home_directory = talloc_strdup(user_info_dc, "");
NT_STATUS_HAVE_NO_MEMORY(info->home_directory);
info->home_drive = talloc_strdup(user_info_dc, "");
NT_STATUS_HAVE_NO_MEMORY(info->home_drive);
info->last_logon = 0;
info->last_logoff = 0;
info->acct_expiry = 0;
info->last_password_change = 0;
info->allow_password_change = 0;
info->force_password_change = 0;
info->logon_count = 0;
info->bad_password_count = 0;
info->acct_flags = ACB_NORMAL;
info->authenticated = true;
*_user_info_dc = user_info_dc;
return nt_status;
}
static const 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, uint8_t chal[8])
{
const char *challenge = "I am a teapot";
memcpy(chal, challenge, 8);
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_user_info_dc **_user_info_dc)
{
/* don't handle any users */
return NT_STATUS_NO_SUCH_USER;
}
static const 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
};
_PUBLIC_ NTSTATUS auth4_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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