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Diffstat (limited to 'kdm/backend/dm.h')
| -rw-r--r-- | kdm/backend/dm.h | 620 |
1 files changed, 620 insertions, 0 deletions
diff --git a/kdm/backend/dm.h b/kdm/backend/dm.h new file mode 100644 index 000000000..6d2f59768 --- /dev/null +++ b/kdm/backend/dm.h @@ -0,0 +1,620 @@ +/* + +Copyright 1988, 1998 The Open Group +Copyright 2000-2005 Oswald Buddenhagen <[email protected]> + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of a copyright holder shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from the copyright holder. + +*/ + +/* + * xdm - display manager daemon + * Author: Keith Packard, MIT X Consortium + * + * global xdm core declarations + */ + +#ifndef _DM_H_ +#define _DM_H_ 1 + +#include "greet.h" +#include <config.ci> + +#include <X11/X.h> /* FamilyInternet6 */ +#include <X11/Xos.h> +#include <X11/Xfuncs.h> +#include <X11/Xmd.h> +#include <X11/Xauth.h> +#include <X11/Intrinsic.h> + +#include <sys/param.h> +#ifdef HAVE_LIMITS_H +# include <limits.h> +#endif + +#include <time.h> +#define Time_t time_t + +#include <stdlib.h> +#include <errno.h> + +#ifdef XDMCP +# if defined(__osf__) +/* someone somewhere defines QUERY under Tru64 which confuses Xdmcp.h */ +# undef QUERY +# endif +# include <X11/Xdmcp.h> +#endif + +#ifndef PATH_MAX +# ifdef MAXPATHLEN +# define PATH_MAX MAXPATHLEN +# else +# define PATH_MAX 1024 +# endif +#endif + +#include <sys/wait.h> +#define waitCode(w) (WIFEXITED(w) ? WEXITSTATUS(w) : 0) +#define waitSig(w) (WIFSIGNALED(w) ? WTERMSIG(w) : 0) +#ifdef WCOREDUMP +# define waitCore(w) (WCOREDUMP(w)) +#else +# define waitCore(w) 0 /* not in POSIX. so what? */ +#endif +typedef int waitType; + +#define waitCompose(sig,core,code) ((sig) * 256 + (core) * 128 + (code)) +#define waitVal(w) waitCompose(waitSig(w), waitCore(w), waitCode(w)) +#define WaitCode(w) ((w) & 0x7f) +#define WaitCore(w) (((w) >> 7) & 1) +#define WaitSig(w) (((w) >> 8) & 0xff) + +#include <sys/time.h> +#define FD_TYPE fd_set + +#include <setjmp.h> +#if defined(__EMX__) || (defined(__NetBSD__) && defined(__sparc__)) /* XXX netbsd? */ +# define Setjmp(e) setjmp(e) +# define Longjmp(e,v) longjmp(e,v) +# define Jmp_buf jmp_buf +#else +# define Setjmp(e) sigsetjmp(e,1) +# define Longjmp(e,v) siglongjmp(e,v) +# define Jmp_buf sigjmp_buf +#endif + +#include <utmp.h> +#ifdef HAVE_UTMPX +# include <utmpx.h> +# define STRUCTUTMP struct utmpx +# define UTMPNAME utmpxname +# define SETUTENT setutxent +# define GETUTENT getutxent +# define PUTUTLINE pututxline +# define ENDUTENT endutxent +# define LASTLOG lastlogx +# define ut_time ut_tv.tv_sec +# define ll_time ll_tv.tv_sec +#else +# define STRUCTUTMP struct utmp +# define UTMPNAME utmpname +# define SETUTENT setutent +# define GETUTENT getutent +# define PUTUTLINE pututline +# define ENDUTENT endutent +# define LASTLOG lastlog +#endif +#ifndef HAVE_STRUCT_UTMP_UT_USER +# define ut_user ut_name +#endif +#ifndef WTMP_FILE +# ifdef _PATH_WTMPX +# define WTMP_FILE _PATH_WTMPX +# elif defined(_PATH_WTMP) +# define WTMP_FILE _PATH_WTMP +# else +# define WTMP_FILE "/usr/adm/wtmp" +# endif +#endif +#ifndef UTMP_FILE +# ifdef _PATH_UTMPX +# define UTMP_FILE _PATH_UTMPX +# elif defined(_PATH_UTMP) +# define UTMP_FILE _PATH_UTMP +# else +# define UTMP_FILE "/etc/utmp" +# endif +#endif + +#ifdef HAVE_NETCONFIG_H +# define STREAMSCONN +#else +# define UNIXCONN +# define TCPCONN +# ifdef FamilyInternet6 +# define IPv6 +# endif +# ifdef HAVE_NETDNET_DN_H +# define DNETCONN +# endif +#endif + +#if !defined(HAVE_ARC4RANDOM) && !defined(DEV_RANDOM) +# define NEED_ENTROPY +#endif + +typedef struct GPipe { + int wfd, rfd; + char *who; +} GPipe; + +typedef struct GTalk { + GPipe *pipe; + Jmp_buf errjmp; +} GTalk; + +typedef struct GProc { + GPipe pipe; + int pid; +} GProc; + +typedef enum displayStatus { notRunning = 0, running, zombie, phoenix, raiser, + textMode, reserve, remoteLogin } DisplayStatus; + +typedef enum serverStatus { ignore = 0, awaiting, starting, + terminated, killed, pausing } ServerStatus; + +typedef struct RcStr { + struct RcStr *next; + char *str; + int cnt; +} RcStr; + +typedef struct CfgDep { + RcStr *name; + long time; +} CfgDep; + +typedef struct CfgArr { + char *data; /* config value array; allocated */ + long *idx; /* config index array; alias */ + CfgDep dep; /* filestamp */ + int numCfgEnt; /* number of config entries */ +} CfgArr; + +struct bsock { + int fd; + int buflen; + char *buffer; +}; + +struct cmdsock { + struct cmdsock *next; + struct bsock sock; /* buffered fd of the socket */ +}; + +typedef struct { + struct cmdsock *css; /* open connections */ + + char *path; /* filename of the socket */ + int fd; /* fd of the socket */ + int gid; /* owner group of the socket */ + + char *fpath; /* filename of the fifo */ + struct bsock fifo; /* buffered fd of the fifo */ +} CtrlRec; + +struct display { + struct display *next; + struct disphist *hstent; /* display history entry */ + + /* basic display information */ + char *name; /* DISPLAY name -- also referenced in hstent */ + char *class2; /* display class (may be NULL) */ + int displayType; /* location/origin/lifetime */ + CfgArr cfg; /* config data array */ + + /* display state */ + DisplayStatus status; /* current status */ + int zstatus; /* substatus while zombie */ + int pid; /* process id of child */ + int serverPid; /* process id of server (-1 if none) */ +#ifdef HAVE_VTS + int serverVT; /* server VT (0 = none, -1 = pending) */ + struct display *follower; /* on exit, hand VT to this display */ +#endif + ServerStatus serverStatus; /* X server startup state */ + Time_t lastStart; /* time of last display start */ + int startTries; /* current start try */ + int stillThere; /* state during HUP processing */ + int userSess; /* -1=nobody, otherwise uid */ + char *userName; + char *sessName; + CtrlRec ctrl; /* command socket & fifo */ + GPipe pipe; /* comm master <-> slave */ + GPipe gpipe; /* comm master <-> greeter */ +#ifdef XDMCP + char *remoteHost; /* for X -query type remote login */ + /* XDMCP state */ + unsigned sessionID; /* ID of active session */ + ARRAY8 peer; /* display peer address */ + ARRAY8 from; /* XDMCP port of display */ + unsigned displayNumber; /* numerical part of name */ + int useChooser; /* Run the chooser for this display */ + ARRAY8 clientAddr; /* for chooser picking */ + unsigned connectionType; /* ... */ + int xdmcpFd; +#endif + + CONF_CORE_LOCAL_DEFS + + int idleTimeout; /* abort login after that time */ + + unsigned short *authNameLens; /* authorization protocol name lens */ + + /* information potentially derived from resources */ + int authNameNum; /* number of protocol names */ + Xauth **authorizations; /* authorization data */ + int authNum; /* number of authorizations */ + char *authFile; /* file to store authorization in */ +}; + +typedef struct { + unsigned how:2, /* 0=none 1=reboot 2=halt (SHUT_*) */ + force:2; + int uid; + int start; + int timeout; + char *osname; + time_t bmstamp; + int osindex; +} SdRec; + +struct disphist { + struct disphist *next; + char *name; + Time_t lastExit; /* time of last display exit */ + unsigned rLogin:2, /* 0=nothing 1=relogin 2=login */ + lock:1, /* screen locker running */ + goodExit:1; /* was the last exit "peaceful"? */ + SdRec sdRec; + char *nuser, *npass, *nargs; +}; + +#ifdef XDMCP + +#define PROTO_TIMEOUT (30 * 60) /* 30 minutes should be long enough */ + +struct protoDisplay { + struct protoDisplay *next; + XdmcpNetaddr address; /* UDP address */ + int addrlen; /* UDP address length */ + unsigned long date; /* creation date */ + CARD16 displayNumber; + CARD16 connectionType; + ARRAY8 connectionAddress; + CARD32 sessionID; + Xauth *fileAuthorization; + Xauth *xdmcpAuthorization; + ARRAY8 authenticationName; + ARRAY8 authenticationData; + XdmAuthKeyRec key; +}; +#endif /* XDMCP */ + +/* status code for RStopDisplay */ +#define DS_RESTART 0 +#define DS_TEXTMODE 1 +#define DS_RESERVE 2 +#define DS_REMOTE 3 +#define DS_REMOVE 4 + +/* command codes dpy process -> master process */ +#define D_User 1 +#define D_ReLogin 2 +#define D_ChooseHost 4 +#define D_RemoteHost 5 +#define D_XConnOk 6 + +extern int debugLevel; + +CONF_CORE_GLOBAL_DECLS + +/* in daemon.c */ +void BecomeDaemon( void ); + +/* in dm.c */ +extern char *prog, *progpath; +extern time_t now; +extern SdRec sdRec; +void StartDisplay( struct display *d ); +void StartDisplayP2( struct display *d ); +void StopDisplay( struct display *d ); +void SetTitle( const char *name ); +void SwitchToX( struct display *d ); +void setNLogin( struct display *d, + const char *nuser, const char *npass, char *nargs, + int rl ); +void cancelShutdown( void ); +int TTYtoVT( const char *tty ); +int activateVT( int vt ); + +/* in ctrl.c */ +void openCtrl( struct display *d ); +void closeCtrl( struct display *d ); +int handleCtrl( FD_TYPE *reads, struct display *d ); +void chownCtrl( CtrlRec *cr, int uid ); +void updateCtrl( void ); + +/* in dpylist.c */ +extern struct display *displays; /* that's ugly ... */ +int AnyDisplaysLeft( void ); +void ForEachDisplay( void (*f)( struct display * ) ); +#ifdef HAVE_VTS +void ForEachDisplayRev( void (*f)( struct display * ) ); +#endif +void RemoveDisplay( struct display *old ); +struct display + *FindDisplayByName( const char *name ), +#ifdef XDMCP + *FindDisplayBySessionID( CARD32 sessionID ), + *FindDisplayByAddress( XdmcpNetaddr addr, int addrlen, CARD16 displayNumber ), +#endif /* XDMCP */ + *FindDisplayByPid( int pid ), + *FindDisplayByServerPid( int serverPid ), + *NewDisplay( const char *name ); +int AnyActiveDisplays( void ); +int AnyRunningDisplays( void ); +int AnyReserveDisplays( void ); +int idleReserveDisplays( void ); +int AllLocalDisplaysLocked( struct display *dp ); +int StartReserveDisplay( int lt ); +void ReapReserveDisplays( void ); + +/* in reset.c */ +void pseudoReset( void ); + +/* in resource.c */ +char **FindCfgEnt( struct display *d, int id ); +int InitResources( char **argv ); +int LoadDMResources( int force ); +int LoadDisplayResources( struct display *d ); +void ScanServers( void ); +void CloseGetter( void ); +int startConfig( int what, CfgDep *dep, int force ); +RcStr *newStr( char *str ); +void delStr( RcStr *str ); +extern GTalk cnftalk; + +/* in session.c */ +extern struct display *td; +extern const char *td_setup; +char **baseEnv( const char *user ); +char **inheritEnv( char **env, const char **what ); +char **systemEnv( const char *user ); +int source( char **env, const char *file, const char *arg ); +void ManageSession( struct display *d ); + +extern GTalk mstrtalk, grttalk; +extern GProc grtproc; +void OpenGreeter( void ); +int CloseGreeter( int force ); +int CtrlGreeterWait( int wreply ); +void PrepErrorGreet( void ); +char *conv_interact( int what, const char *prompt ); + +/* process.c */ +typedef void (*SIGFUNC)( int ); +SIGFUNC Signal( int, SIGFUNC Handler ); + +void RegisterInput( int fd ); +void UnregisterInput( int fd ); +void RegisterCloseOnFork( int fd ); +void ClearCloseOnFork( int fd ); +void CloseNClearCloseOnFork( int fd ); +int Fork( void ); +int Wait4( int pid ); +void execute( char **argv, char **env ); +int runAndWait( char **args, char **env ); +FILE *pOpen( char **what, char m, int *pid ); +int pClose( FILE *f, int pid ); +char *locate( const char *exe ); +void TerminateProcess( int pid, int sig ); + +void GSet( GTalk *talk); /* call before GOpen! */ +int GFork( GPipe *pajp, const char *pname, char *cname, + GPipe *ogp, char *cgname ); +void GClosen( GPipe *pajp ); +int GOpen( GProc *proc, + char **argv, const char *what, char **env, char *cname, + GPipe *gp ); +int GClose( GProc *proc, GPipe *gp, int force ); + +void GSendInt( int val ); +int GRecvInt( void ); +int GRecvCmd( int *cmd ); +void GSendArr( int len, const char *data ); +char *GRecvArr( int *len ); +int GRecvStrBuf( char *buf ); +int GRecvArrBuf( char *buf ); +void GSendStr( const char *buf ); +void GSendNStr( const char *buf, int len ); /* exact len, buf != 0 */ +void GSendStrN( const char *buf, int len ); /* maximal len */ +char *GRecvStr( void ); +void GSendArgv( char **argv ); +void GSendStrArr( int len, char **data ); +char **GRecvStrArr( int *len ); +char **GRecvArgv( void ); + +/* client.c */ +#define GCONV_NORMAL 0 +#define GCONV_HIDDEN 1 +#define GCONV_USER 2 +#define GCONV_PASS 3 +#define GCONV_PASS_ND 4 +#define GCONV_BINARY 5 +typedef char *(*GConvFunc)( int what, const char *prompt ); +int Verify( GConvFunc gconv, int rootok ); +int StartClient( void ); +void SessionExit( int status ) ATTR_NORETURN; +int ReadDmrc( void ); +extern char **userEnviron, **systemEnviron; +extern char *curuser, *curpass, *curtype, *newpass, + *dmrcuser, *curdmrc, *newdmrc; +extern int cursource; +#define PWSRC_MANUAL 0 +#define PWSRC_AUTOLOGIN 1 +#define PWSRC_RELOGIN 2 + +/* server.c */ +char **PrepServerArgv( struct display *d, const char *args ); +void StartServer( struct display *d ); +void AbortStartServer( struct display *d ); +void StartServerSuccess( void ); +void StartServerFailed( void ); +void StartServerTimeout( void ); +extern struct display *startingServer; +extern time_t serverTimeout; + +void WaitForServer( struct display *d ); +void ResetServer( struct display *d ); +int PingServer(struct display *d ); +extern Display *dpy; + +/* in util.c */ +void *Calloc( size_t nmemb, size_t size ); +void *Malloc( size_t size ); +void *Realloc( void *ptr, size_t size ); +void WipeStr( char *str ); +int StrCmp( const char *s1, const char *s2 ); +#ifdef HAVE_STRNLEN +# define StrNLen(s, m) strnlen(s, m) +#else +int StrNLen( const char *s, int max ); +#endif +int StrNDup( char **dst, const char *src, int len ); +int StrDup( char **dst, const char *src ); +int arrLen( char **arr ); +void freeStrArr( char **arr ); +char **initStrArr( char **arr ); +char **xCopyStrArr( int rn, char **arr ); +/* Note: the following functions free the old data even in case of failure */ +int ReStrN( char **dst, const char *src, int len ); +int ReStr( char **dst, const char *src ); +int StrApp( char **dst, ... ); +char **addStrArr( char **arr, const char *str, int len ); +char **parseArgs( char **argv, const char *string ); +/* End note */ +char **setEnv( char **e, const char *name, const char *value ); +char **putEnv( const char *string, char **env ); +const char *getEnv( char **e, const char *name ); +const char *localHostname( void ); +int Reader( int fd, void *buf, int len ); +int Writer( int fd, const void *buf, int len ); +int fGets( char *buf, int max, FILE *f ); +time_t mTime( const char *fn ); +void ListSessions( int flags, struct display *d, void *ctx, + void (*emitXSess)( struct display *, struct display *, void * ), + void (*emitTTYSess)( STRUCTUTMP *, struct display *, void * ) ); + +/* in inifile.c */ +char *iniLoad( const char *fname ); +int iniSave( const char *data, const char *fname ); +char *iniEntry( char *data, const char *section, const char *key, const char *value ); +char *iniMerge( char *data, const char *newdata ); + +/* in bootman.c */ +int getBootOptions( char ***opts, int *def, int *cur ); +int setBootOption( const char *opt, SdRec *sdr ); +void commitBootOption( void ); + +/* in netaddr.c */ +char *NetaddrAddress( char *netaddrp, int *lenp ); +char *NetaddrPort( char *netaddrp, int *lenp ); +int ConvertAddr( char *saddr, int *len, char **addr ); +int NetaddrFamily( char *netaddrp ); +int addressEqual( char *a1, int len1, char *a2, int len2 ); + +#ifdef XDMCP + +/* in xdmcp.c */ +char *NetworkAddressToHostname( CARD16 connectionType, ARRAY8Ptr connectionAddress ); +void SendFailed( struct display *d, const char *reason ); +void init_session_id( void ); + +/* in policy.c */ +struct sockaddr; +ARRAY8Ptr Accept( struct sockaddr *from, int fromlen, CARD16 displayNumber ); +ARRAY8Ptr ChooseAuthentication( ARRAYofARRAY8Ptr authenticationNames ); +int CheckAuthentication( struct protoDisplay *pdpy, ARRAY8Ptr displayID, ARRAY8Ptr name, ARRAY8Ptr data ); +int SelectAuthorizationTypeIndex( ARRAY8Ptr authenticationName, ARRAYofARRAY8Ptr authorizationNames ); +int SelectConnectionTypeIndex( ARRAY16Ptr connectionTypes, ARRAYofARRAY8Ptr connectionAddresses ); +int Willing( ARRAY8Ptr addr, CARD16 connectionType, ARRAY8Ptr authenticationName, ARRAY8Ptr status, xdmOpCode type ); + +/* in protodpy.c */ +void DisposeProtoDisplay( struct protoDisplay *pdpy ); + +struct protoDisplay *FindProtoDisplay( XdmcpNetaddr address, int addrlen, + CARD16 displayNumber ); +struct protoDisplay *NewProtoDisplay( XdmcpNetaddr address, int addrlen, + CARD16 displayNumber, + CARD16 connectionType, + ARRAY8Ptr connectionAddress, + CARD32 sessionID ); + +#define FamilyBroadcast 0xffff +typedef void (*ChooserFunc)( CARD16 connectionType, ARRAY8Ptr addr, char *closure ); +typedef void (*ListenFunc)( ARRAY8Ptr addr, void **closure ); + +/* in access.c */ +ARRAY8Ptr getLocalAddress( void ); +int AcceptableDisplayAddress( ARRAY8Ptr clientAddress, CARD16 connectionType, xdmOpCode type ); +int ForEachMatchingIndirectHost( ARRAY8Ptr clientAddress, CARD16 connectionType, ChooserFunc function, char *closure ); +void ScanAccessDatabase( int force ); +int UseChooser( ARRAY8Ptr clientAddress, CARD16 connectionType ); +void ForEachChooserHost( ARRAY8Ptr clientAddress, CARD16 connectionType, ChooserFunc function, char *closure ); +void ForEachListenAddr( ListenFunc listenfunction, ListenFunc mcastfcuntion, void **closure ); + +/* in choose.c */ +ARRAY8Ptr IndirectChoice( ARRAY8Ptr clientAddress, CARD16 connectionType ); +int IsIndirectClient( ARRAY8Ptr clientAddress, CARD16 connectionType ); +int RememberIndirectClient( ARRAY8Ptr clientAddress, CARD16 connectionType ); +void ForgetIndirectClient( ARRAY8Ptr clientAddress, CARD16 connectionType ); +int RegisterIndirectChoice( ARRAY8Ptr clientAddress, CARD16 connectionType, ARRAY8Ptr choice ); +int DoChoose( void ); + +/* socket.c or streams.c */ +void UpdateListenSockets( void ); +int AnyListenSockets( void ); +int ProcessListenSockets( FD_TYPE *reads ); + +/* in xdmcp.c */ +void ProcessRequestSocket( int fd ); + +#endif /* XDMCP */ + +/* in sessreg.c */ +void sessreg( struct display *d, int pid, const char *user, int uid ); + +#endif /* _DM_H_ */ |