172 lines
3.7 KiB
C
172 lines
3.7 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 session_list.h
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* @brief Session list management definitions
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* @author Jay Sorg, Simone Fedele
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*
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*/
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#ifndef SESSION_LIST_H
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#define SESSION_LIST_H
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#include <time.h>
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#include "guid.h"
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#include "scp_application_types.h"
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#include "xrdp_constants.h"
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struct session_parameters;
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#define SESMAN_SESSION_STATUS_ACTIVE 0x01
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#define SESMAN_SESSION_STATUS_IDLE 0x02
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#define SESMAN_SESSION_STATUS_DISCONNECTED 0x04
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/* future expansion
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#define SESMAN_SESSION_STATUS_REMCONTROL 0x08
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*/
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#define SESMAN_SESSION_STATUS_ALL 0xFF
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enum session_kill_status
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{
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SESMAN_SESSION_KILL_OK = 0,
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SESMAN_SESSION_KILL_NULLITEM,
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SESMAN_SESSION_KILL_NOTFOUND
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};
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struct scp_session_info;
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/**
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* Object describing a session
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*/
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struct session_item
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{
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int uid; /* UID of session */
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int pid; /* pid of sesman waiting for wm to end */
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int display;
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int width;
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int height;
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int bpp;
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struct auth_info *auth_info;
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/* status info */
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unsigned char status;
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enum scp_session_type type;
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/* time data */
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time_t start_time;
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// struct session_date disconnect_time; // Currently unused
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// struct session_date idle_time; // Currently unused
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char start_ip_addr[MAX_PEER_ADDRSTRLEN];
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struct guid guid;
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};
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struct session_chain
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{
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struct session_chain *next;
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struct session_item *item;
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};
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/**
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* Returns the number of sessions currently active
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* @return Session count
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*/
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unsigned int
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session_list_get_count(void);
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/**
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* Adds a new session item to the chain
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*/
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void
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session_list_add(struct session_chain *element);
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/**
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* Get the next available display
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*/
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int
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session_list_get_available_display(void);
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/**
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*
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* @brief finds a session matching the supplied parameters
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* @return session data or 0
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*
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*/
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struct session_item *
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session_list_get_bydata(uid_t uid,
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enum scp_session_type type,
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unsigned short width,
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unsigned short height,
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unsigned char bpp,
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const char *ip_addr);
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/**
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*
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* @brief kills a session
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* @param pid the pid of the session to be killed
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* @return
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*
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*/
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enum session_kill_status
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session_list_kill(int pid);
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/**
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*
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* @brief sends sigkill to all sessions
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* @return
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*
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*/
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void
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session_list_sigkill_all(void);
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/**
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*
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* @brief retrieves a session's descriptor
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* @param pid the session pid
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* @return a pointer to the session descriptor on success, NULL otherwise
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*
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*/
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struct session_item *
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session_list_get_bypid(int pid);
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/**
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*
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* @brief retrieves session descriptions
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* @param UID the UID for the descriptions
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* @return A block of session descriptions
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*
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* Pass the return result to free_session_info_list() after use
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*
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*/
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struct scp_session_info *
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session_list_get_byuid(int uid, unsigned int *cnt, unsigned char flags);
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/**
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*
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* @brief Frees the result of session_get_byuser()
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* @param sesslist Resuit of session_get_byuser()
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* @param cnt Number of entries in sess
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*/
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void
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free_session_info_list(struct scp_session_info *sesslist, unsigned int cnt);
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#endif // SESSION_LIST_H
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