2a3cec4125
An extra method auth_uds() is added to the PAM module to allow a 'struct auth_info' to be created for a UDS login. The PAM stack is used to check the UDS user can be authorized. Also, an error code is returned from the auth module rather than a simple boolean. This allows a more complete status to be communicated to the user. See https://github.com/neutrinolabs/xrdp/discussions/1921 and also #909 and #642
139 lines
3.3 KiB
C
139 lines
3.3 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2012
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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*
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* @file auth.h
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* @brief User authentication definitions
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* @author Jay Sorg
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*
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*/
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#ifndef AUTH_H
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#define AUTH_H
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/**
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* Opaque type used to represent an authentication handle
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*/
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struct auth_info;
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#include "scp_application_types.h"
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/**
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*
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* @brief Validates user's password
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* @param user user's login name
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* @param pass user's password
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* @param client_ip IP address of connecting client (or ""/NULL if not known)
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* @param[out] Error code for the operation. E_SCP_LOGIN_OK on success.
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* @return auth handle on success, NULL on failure
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*
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*/
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struct auth_info *
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auth_userpass(const char *user, const char *pass,
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const char *client_ip, enum scp_login_status *errorcode);
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/**
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*
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* @brief Gets an auth handle for a UDS login
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*
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* @param uid User ID
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* @param[out] Error code for the operation. E_SCP_LOGIN_OK on success.
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* @return auth handle on success, NULL on failure
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*
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*/
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struct auth_info *
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auth_uds(const char *user, enum scp_login_status *errorcode);
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/**
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*
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* @brief Starts a session
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* @param auth_info. Auth handle created by auth_userpass
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* @param display_num Display number
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* @return 0 on success, 1 on failure
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*
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*/
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int
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auth_start_session(struct auth_info *auth_info, int display_num);
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/**
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*
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* @brief Stops a session previously started with auth_start_session()
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* @param auth_info. Auth handle created by auth_userpass
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* @return 0 on success, 1 on failure
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*
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*/
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int
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auth_stop_session(struct auth_info *auth_info);
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/**
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*
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* @brief Deallocates an auth handle and releases all resources
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* @param auth_info. Auth handle created by auth_userpass
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* @return 0 on success, 1 on failure
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*
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*/
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int
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auth_end(struct auth_info *auth_info);
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/**
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*
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* @brief Sets up the environment for a session started
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* with auth_start_session()
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*
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* This call is only effective for PAM-based environments. It must be made
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* after the context has been switched to the logged-in user.
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*
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* @param auth_info. Auth handle created by auth_userpass
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* @return 0 on success, 1 on failure
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*
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*/
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int
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auth_set_env(struct auth_info *auth_info);
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#define AUTH_PWD_CHG_OK 0
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#define AUTH_PWD_CHG_CHANGE 1
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#define AUTH_PWD_CHG_CHANGE_MANDATORY 2
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#define AUTH_PWD_CHG_NOT_NOW 3
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#define AUTH_PWD_CHG_ERROR 4
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/**
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*
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* @brief WIP - Checks to see if the password for a user needs changing
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*
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* @param user - Username to check
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* @return 0 on success, 1 on failure
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*
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*/
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int
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auth_check_pwd_chg(const char *user);
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/**
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*
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* @brief WIP - Changes the password for a user
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*
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* @param user Username to check
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* @param newpwd New password for user
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* @return 0 on success, 1 on failure
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*
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*/
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int
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auth_change_pwd(const char *user, const char *newpwd);
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#endif
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