source: vendor/3.6.23/source3/auth/user_info.c

/*
   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"

#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 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);

        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);
}