8e291846d5
This is made from the old sesman_con structure. It describes a connection to sesman which is not yet running a session.
149 lines
3.8 KiB
C
149 lines
3.8 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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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 pre_session_list.h
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* @brief List of pre-session connections to sesman (declarations)
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*
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* Items on this list are moved to the session list once they have
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* authenticated and a session is started.
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*
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* @author Matt Burt
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*
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*/
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#ifndef PRE_SESSION_LIST_H
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#define PRE_SESSION_LIST_H
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#include <sys/types.h>
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#include "xrdp_constants.h"
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/**
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* Type describing the login state of a pre-session item
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*/
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enum ps_login_state
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{
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E_PS_LOGIN_NOT_LOGGED_IN = 0,
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E_PS_LOGIN_SYS,
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E_PS_LOGIN_UDS
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};
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/**
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* Action we require the dispatcher to do for us
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*
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* We can't do some things in an SCP or EICP callback, so we have to
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* ask the dispatcher to do them. For example, we can't delete the
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* client_trans as the callback stack won't be expecting this.
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*/
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enum pre_session_dispatcher_action
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{
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E_PSD_NONE = 0,
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E_PSD_REMOVE_CLIENT_TRANS,
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E_PSD_TERMINATE_PRE_SESSION
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};
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/**
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* Type for managing sesman connections from SCP clients (xrdp, etc)
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* and any sesexec processes we've created for them.
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*/
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struct pre_session_item
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{
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struct trans *client_trans; ///< SCP link to sesman client
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struct trans *sesexec_trans; ///< ECP link to sesexec
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pid_t sesexec_pid; ///< PID of sesexec (if sesexec is active)
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char peername[15 + 1]; ///< Name of peer, if known, for logging
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enum ps_login_state login_state; ///< Login state
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/**
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* Any action which a callback requires the dispatcher to
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* do out of scope of the callback */
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enum pre_session_dispatcher_action dispatcher_action;
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uid_t uid; ///< User
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char *username; ///< Username from UID (at time of logon)
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char start_ip_addr[MAX_PEER_ADDRSTRLEN];
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};
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/**
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* Initialise the module
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* @param list_size Number of pre-session items allowed
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* @return 0 for success
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*
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* Errors are logged
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*/
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int
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pre_session_list_init(unsigned int list_size);
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/**
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* Clean up the module on program exit
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*/
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void
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pre_session_list_cleanup(void);
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/**
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* Returns the number of items on the pre-session list
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* @return Item count
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*/
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unsigned int
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pre_session_list_get_count(void);
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/**
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* Allocates a new pre-session item on the list
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*
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* @return pointer to new pre-session object or NULL for no memory
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*
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* After allocating the session, you must initialise the sesexec_trans field
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* with a valid transport.
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*
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* The session is removed by pre_session_list_get_wait_objs() or
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* pre_session_check_wait_objs() when the client
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* transport goes down (or wasn't allocated in the first place).
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*/
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struct pre_session_item *
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pre_session_list_new(void);
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/**
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* Set the peername of a pre-session
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*
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* @param psi pre-session-item
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* @param name Name to set
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* @result 0 for success
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*/
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int
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pre_session_list_set_peername(struct pre_session_item *psi, const char *name);
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/**
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* @brief Get the wait objs for the pre-session list module
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* @param @robjs Objects array to update
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* @param robjs_count Elements in robjs (by reference)
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* @return 0 for success
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*/
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int
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pre_session_list_get_wait_objs(tbus robjs[], int *robjs_count);
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/**
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* @brief Check the wait objs for the pre-session list module
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* @return 0 for success
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*/
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int
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pre_session_list_check_wait_objs(void);
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#endif // PRE_SESSION_LIST_H
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