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/*
Unix SMB/CIFS implementation.
Authentication utility functions
Copyright (C) Volker Lendecke 2010
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.h"
#include "librpc/gen_ndr/samr.h"
#include "../lib/tsocket/tsocket.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
static int clear_samr_Password(struct samr_Password *password)
{
memset(password->hash, '\0', sizeof(password->hash));
return 0;
}
static int clear_string(char *password)
{
memset(password, '\0', strlen(password));
return 0;
}
/****************************************************************************
Create an auth_usersupplied_data structure
****************************************************************************/
NTSTATUS make_user_info(struct auth_usersupplied_info **ret_user_info,
const char *smb_name,
const char *internal_username,
const char *client_domain,
const char *domain,
const char *workstation_name,
const struct tsocket_address *remote_address,
const DATA_BLOB *lm_pwd,
const DATA_BLOB *nt_pwd,
const struct samr_Password *lm_interactive_pwd,
const struct samr_Password *nt_interactive_pwd,
const char *plaintext_password,
enum auth_password_state password_state)
{
struct auth_usersupplied_info *user_info;
*ret_user_info = NULL;
DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
/* FIXME: Have the caller provide a talloc context of the
* correct lifetime (possibly talloc_tos(), but it depends on
* the caller) */
user_info = talloc_zero(NULL, struct auth_usersupplied_info);
if (user_info == NULL) {
DEBUG(0,("talloc failed for user_info\n"));
return NT_STATUS_NO_MEMORY;
}
DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
user_info->client.account_name = talloc_strdup(user_info, smb_name);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.account_name, user_info);
user_info->mapped.account_name = talloc_strdup(user_info, internal_username);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.account_name, user_info);
user_info->mapped.domain_name = talloc_strdup(user_info, domain);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->mapped.domain_name, user_info);
user_info->client.domain_name = talloc_strdup(user_info, client_domain);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->client.domain_name, user_info);
user_info->workstation_name = talloc_strdup(user_info, workstation_name);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->workstation_name, user_info);
user_info->remote_host = tsocket_address_copy(remote_address, user_info);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->remote_host, user_info);
DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
if (lm_pwd && lm_pwd->data) {
user_info->password.response.lanman = data_blob_talloc(user_info, lm_pwd->data, lm_pwd->length);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.lanman.data, user_info);
}
if (nt_pwd && nt_pwd->data) {
user_info->password.response.nt = data_blob_talloc(user_info, nt_pwd->data, nt_pwd->length);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.response.nt.data, user_info);
}
if (lm_interactive_pwd) {
user_info->password.hash.lanman = talloc(user_info, struct samr_Password);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.lanman, user_info);
memcpy(user_info->password.hash.lanman->hash, lm_interactive_pwd->hash,
sizeof(user_info->password.hash.lanman->hash));
talloc_set_destructor(user_info->password.hash.lanman, clear_samr_Password);
}
if (nt_interactive_pwd) {
user_info->password.hash.nt = talloc(user_info, struct samr_Password);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.hash.nt, user_info);
memcpy(user_info->password.hash.nt->hash, nt_interactive_pwd->hash,
sizeof(user_info->password.hash.nt->hash));
talloc_set_destructor(user_info->password.hash.nt, clear_samr_Password);
}
if (plaintext_password) {
user_info->password.plaintext = talloc_strdup(user_info, plaintext_password);
NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info->password.plaintext, user_info);
talloc_set_destructor(user_info->password.plaintext, clear_string);
}
user_info->password_state = password_state;
user_info->logon_parameters = 0;
DEBUG(10,("made a user_info for %s (%s)\n", internal_username, smb_name));
*ret_user_info = user_info;
return NT_STATUS_OK;
}
/***************************************************************************
Free a user_info struct
***************************************************************************/
void free_user_info(struct auth_usersupplied_info **user_info)
{
TALLOC_FREE(*user_info);
}
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