191 lines
4.4 KiB
C++
191 lines
4.4 KiB
C++
/* cygserver.h
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Copyright 2001, 2002, 2003, 2004 Red Hat Inc.
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Written by Egor Duda <deo@logos-m.ru>
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _CYGSERVER_H_
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#define _CYGSERVER_H_
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#ifdef __GNUC__
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#define CYGSERVER_PACKED __attribute__ ((packed))
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#else
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#define CYGSERVER_PACKED
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#endif
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#define CYGWIN_SERVER_VERSION_MAJOR 1
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#define CYGWIN_SERVER_VERSION_API 3
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#define CYGWIN_SERVER_VERSION_MINOR 0
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#define CYGWIN_SERVER_VERSION_PATCH 0
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typedef enum {
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CYGSERVER_UNKNOWN = 0,
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CYGSERVER_OK,
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CYGSERVER_UNAVAIL
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} cygserver_states;
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/*---------------------------------------------------------------------------*
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* class client_request
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*---------------------------------------------------------------------------*/
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class transport_layer_base;
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#ifndef __INSIDE_CYGWIN__
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class process_cache;
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#endif
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class client_request
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{
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protected:
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typedef enum {
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CYGSERVER_REQUEST_INVALID,
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CYGSERVER_REQUEST_GET_VERSION,
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CYGSERVER_REQUEST_SHUTDOWN,
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CYGSERVER_REQUEST_ATTACH_TTY,
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CYGSERVER_REQUEST_MSG,
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CYGSERVER_REQUEST_SEM,
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CYGSERVER_REQUEST_SHM,
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CYGSERVER_REQUEST_LAST
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} request_code_t;
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struct header_t
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{
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size_t msglen;
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union
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{
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request_code_t request_code;
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ssize_t error_code;
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};
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header_t () {};
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header_t (request_code_t, size_t);
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} CYGSERVER_PACKED;
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public:
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#ifndef __INSIDE_CYGWIN__
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static void handle_request (transport_layer_base *, process_cache *);
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#endif
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client_request (request_code_t request_code,
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void *buf = NULL,
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size_t bufsiz = 0);
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virtual ~client_request ();
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request_code_t request_code () const { return _header.request_code; }
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ssize_t error_code () const { return _header.error_code; };
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void error_code (ssize_t error_code) { _header.error_code = error_code; };
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size_t msglen () const { return _header.msglen; };
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void msglen (size_t len) { _header.msglen = len; };
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int make_request ();
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protected:
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virtual void send (transport_layer_base *);
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private:
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header_t _header;
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void * const _buf;
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const size_t _buflen;
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#ifndef __INSIDE_CYGWIN__
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void handle (transport_layer_base *, process_cache *);
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virtual void serve (transport_layer_base *, process_cache *) = 0;
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#endif
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};
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/*---------------------------------------------------------------------------*
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* class client_request_get_version
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*---------------------------------------------------------------------------*/
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class client_request_get_version : public client_request
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{
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private:
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struct request_get_version
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{
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DWORD major, api, minor, patch;
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} CYGSERVER_PACKED;
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public:
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client_request_get_version ();
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bool check_version () const;
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private:
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struct request_get_version version;
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#ifndef __INSIDE_CYGWIN__
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virtual void serve (transport_layer_base *, process_cache *);
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#endif
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};
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/*---------------------------------------------------------------------------*
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* class client_request_shutdown
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*
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* Nb. This whole class is only !__INSIDE_CYGWIN__ since it is used
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* solely by cygserver itself.
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*---------------------------------------------------------------------------*/
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#ifndef __INSIDE_CYGWIN__
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class client_request_shutdown : public client_request
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{
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public:
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client_request_shutdown ();
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private:
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virtual void serve (transport_layer_base *, process_cache *);
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};
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#endif /* !__INSIDE_CYGWIN__ */
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/*---------------------------------------------------------------------------*
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* class client_request_attach_tty
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*---------------------------------------------------------------------------*/
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class client_request_attach_tty : public client_request
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{
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private:
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struct request_attach_tty
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{
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DWORD pid, master_pid;
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HANDLE from_master, to_master;
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} CYGSERVER_PACKED;
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public:
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#ifdef __INSIDE_CYGWIN__
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client_request_attach_tty (DWORD nmaster_pid,
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HANDLE nfrom_master, HANDLE nto_master);
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#else
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client_request_attach_tty ();
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#endif
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HANDLE from_master () const { return req.from_master; };
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HANDLE to_master () const { return req.to_master; };
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protected:
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virtual void send (transport_layer_base *);
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private:
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struct request_attach_tty req;
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#ifndef __INSIDE_CYGWIN__
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virtual void serve (transport_layer_base *, process_cache *);
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#endif
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};
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#ifndef __INSIDE_CYGWIN__
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extern PSID admininstrator_group_sid;
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#endif
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extern bool check_cygserver_available ();
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extern void cygserver_init ();
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#endif /* _CYGSERVER_H_ */
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