X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fos%2Fxdmcp.c;fp=Xserver%2Fprograms%2FXserver%2Fos%2Fxdmcp.c;h=0000000000000000000000000000000000000000;hb=ce66b81460e5353db09d45c02339d4583fbda255;hp=5de14cd3250f32dd9f2f1093bf96b1a76870d520;hpb=7772d71ffd742cfc9b7ff214659d16c5bb56a391;p=rdpsrv diff --git a/Xserver/programs/Xserver/os/xdmcp.c b/Xserver/programs/Xserver/os/xdmcp.c deleted file mode 100644 index 5de14cd..0000000 --- a/Xserver/programs/Xserver/os/xdmcp.c +++ /dev/null @@ -1,1464 +0,0 @@ -/* $XConsortium: xdmcp.c /main/34 1996/12/02 10:23:29 lehors $ */ -/* $XFree86: xc/programs/Xserver/os/xdmcp.c,v 3.9 1997/01/18 06:58:04 dawes Exp $ */ -/* - * Copyright 1989 Network Computing Devices, Inc., Mountain View, California. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, provided - * that the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of N.C.D. not be used in advertising or - * publicity pertaining to distribution of the software without specific, - * written prior permission. N.C.D. makes no representations about the - * suitability of this software for any purpose. It is provided "as is" - * without express or implied warranty. - * - */ - -#ifdef WIN32 -/* avoid conflicting definitions */ -#define BOOL wBOOL -#define ATOM wATOM -#define FreeResource wFreeResource -#include -#undef BOOL -#undef ATOM -#undef FreeResource -#undef CreateWindowA -#undef RT_FONT -#undef RT_CURSOR -#endif -#include "Xos.h" -#if !defined(MINIX) && !defined(WIN32) -#ifndef Lynx -#include -#include -#else -#include -#endif -#include -#include -#else -#if defined(MINIX) -#include -#include -#include -#include -#include -#include -#include -#endif -#endif -#include -#include "X.h" -#include "Xmd.h" -#include "misc.h" -#include "Xpoll.h" -#include "osdep.h" -#include "input.h" -#include "dixstruct.h" -#include "opaque.h" - -#ifdef STREAMSCONN -#include -#include -#include -#endif - -#ifdef XDMCP -#undef REQUEST -#include "Xdmcp.h" - -extern char *display; -extern fd_set EnabledDevices; -extern fd_set AllClients; -extern char *defaultDisplayClass; - -static int xdmcpSocket, sessionSocket; -static xdmcp_states state; -static struct sockaddr_in req_sockaddr; -static int req_socklen; -static CARD32 SessionID; -static CARD32 timeOutTime; -static int timeOutRtx; -static CARD32 defaultKeepaliveDormancy = XDM_DEF_DORMANCY; -static CARD32 keepaliveDormancy = XDM_DEF_DORMANCY; -static CARD16 DisplayNumber; -static xdmcp_states XDM_INIT_STATE = XDM_OFF; -#ifdef HASXDMAUTH -static char *xdmAuthCookie; -#endif - -static XdmcpBuffer buffer; - -static struct sockaddr_in ManagerAddress; - -static void get_xdmcp_sock( -#if NeedFunctionPrototypes - void -#endif -); - -static void send_query_msg( -#if NeedFunctionPrototypes - void -#endif -); - -static void recv_willing_msg( -#if NeedFunctionPrototypes - struct sockaddr_in */*from*/, - int /*fromlen*/, - unsigned /*length*/ -#endif -); - -static void send_request_msg( -#if NeedFunctionPrototypes - void -#endif -); - -static void recv_accept_msg( -#if NeedFunctionPrototypes - unsigned /*length*/ -#endif -); - -static void recv_decline_msg( -#if NeedFunctionPrototypes - unsigned /*length*/ -#endif -); - -static void send_manage_msg( -#if NeedFunctionPrototypes - void -#endif -); - -static void recv_refuse_msg( -#if NeedFunctionPrototypes - unsigned /*length*/ -#endif -); - -static void recv_failed_msg( -#if NeedFunctionPrototypes - unsigned /*length*/ -#endif -); - -static void send_keepalive_msg( -#if NeedFunctionPrototypes - void -#endif -); - -static void recv_alive_msg( -#if NeedFunctionPrototypes - unsigned /*length*/ -#endif -); - -static XdmcpFatal( -#if NeedFunctionPrototypes - char */*type*/, - ARRAY8Ptr /*status*/ -#endif -); - -static XdmcpWarning( -#if NeedFunctionPrototypes - char */*str*/ -#endif -); - -static get_manager_by_name( -#if NeedFunctionPrototypes - int /*argc*/, - char **/*argv*/, - int /*i*/ -#endif -); - -static void receive_packet( -#if NeedFunctionPrototypes - void -#endif -); - -static send_packet( -#if NeedFunctionPrototypes - void -#endif -); - -extern int XdmcpDeadSession( -#if NeedFunctionPrototypes - char */*reason*/ -#endif -); - -static void timeout( -#if NeedFunctionPrototypes - void -#endif -); - -static restart( -#if NeedFunctionPrototypes - void -#endif -); - -static void XdmcpBlockHandler( -#if NeedFunctionPrototypes - pointer /*data*/, - struct timeval **/*wt*/, - pointer /*LastSelectMask*/ -#endif -); - -static void XdmcpWakeupHandler( -#if NeedFunctionPrototypes - pointer /*data*/, - int /*i*/, - pointer /*LastSelectMask*/ -#endif -); - -void XdmcpRegisterManufacturerDisplayID( -#if NeedFunctionPrototypes - char * /*name*/, - int /*length*/ -#endif -); - -#ifdef MINIX -static void read_cb( -#if NeedFunctionPrototypes - nbio_ref_t /*ref*/, - int /*res*/, - int /*err*/ -#endif -); -#endif - -static short xdm_udp_port = XDM_UDP_PORT; -static Bool OneSession = FALSE; - -XdmcpUseMsg () -{ - ErrorF("-query host-name contact named host for XDMCP\n"); - ErrorF("-broadcast broadcast for XDMCP\n"); - ErrorF("-indirect host-name contact named host for indirect XDMCP\n"); - ErrorF("-port port-num UDP port number to send messages to\n"); - ErrorF("-once Terminate server after one session\n"); - ErrorF("-class display-class specify display class to send in manage\n"); -#ifdef HASXDMAUTH - ErrorF("-cookie xdm-auth-bits specify the magic cookie for XDMCP\n"); -#endif - ErrorF("-displayID display-id manufacturer display ID for request\n"); -} - -int -XdmcpOptions(argc, argv, i) - int argc, i; - char **argv; -{ - if (strcmp(argv[i], "-query") == 0) { - get_manager_by_name(argc, argv, ++i); - XDM_INIT_STATE = XDM_QUERY; - AccessUsingXdmcp (); - return (i + 1); - } - if (strcmp(argv[i], "-broadcast") == 0) { - XDM_INIT_STATE = XDM_BROADCAST; - AccessUsingXdmcp (); - return (i + 1); - } - if (strcmp(argv[i], "-indirect") == 0) { - get_manager_by_name(argc, argv, ++i); - XDM_INIT_STATE = XDM_INDIRECT; - AccessUsingXdmcp (); - return (i + 1); - } - if (strcmp(argv[i], "-port") == 0) { - ++i; - xdm_udp_port = atoi(argv[i]); - return (i + 1); - } - if (strcmp(argv[i], "-once") == 0) { - OneSession = TRUE; - return (i + 1); - } - if (strcmp(argv[i], "-class") == 0) { - ++i; - defaultDisplayClass = argv[i]; - return (i + 1); - } -#ifdef HASXDMAUTH - if (strcmp(argv[i], "-cookie") == 0) { - ++i; - xdmAuthCookie = argv[i]; - return (i + 1); - } -#endif - if (strcmp(argv[i], "-displayID") == 0) { - ++i; - XdmcpRegisterManufacturerDisplayID (argv[i], strlen (argv[i])); - return (i + 1); - } - return (i); -} - -/* - * This section is a collection of routines for - * registering server-specific data with the XDMCP - * state machine. - */ - - -/* - * Save all broadcast addresses away so BroadcastQuery - * packets get sent everywhere - */ - -#define MAX_BROADCAST 10 - -static struct sockaddr_in BroadcastAddresses[MAX_BROADCAST]; -static int NumBroadcastAddresses; - -void -XdmcpRegisterBroadcastAddress (addr) - struct sockaddr_in *addr; -{ - struct sockaddr_in *bcast; - if (NumBroadcastAddresses >= MAX_BROADCAST) - return; - bcast = &BroadcastAddresses[NumBroadcastAddresses++]; - bzero (bcast, sizeof (struct sockaddr_in)); -#ifdef BSD44SOCKETS - bcast->sin_len = addr->sin_len; -#endif - bcast->sin_family = addr->sin_family; - bcast->sin_port = htons (xdm_udp_port); - bcast->sin_addr = addr->sin_addr; -} - -/* - * Each authentication type is registered here; Validator - * will be called to check all access attempts using - * the specified authentication type - */ - -static ARRAYofARRAY8 AuthenticationNames, AuthenticationDatas; -typedef struct _AuthenticationFuncs { - Bool (*Validator)(); - Bool (*Generator)(); - Bool (*AddAuth)(); -} AuthenticationFuncsRec, *AuthenticationFuncsPtr; - -static AuthenticationFuncsPtr AuthenticationFuncsList; - -void -XdmcpRegisterAuthentication (name, namelen, data, datalen, Validator, Generator, AddAuth) - char *name; - int namelen; - char *data; - int datalen; - Bool (*Validator)(); - Bool (*Generator)(); - Bool (*AddAuth)(); -{ - int i; - ARRAY8 AuthenticationName, AuthenticationData; - static AuthenticationFuncsPtr newFuncs; - - if (!XdmcpAllocARRAY8 (&AuthenticationName, namelen)) - return; - if (!XdmcpAllocARRAY8 (&AuthenticationData, datalen)) - { - XdmcpDisposeARRAY8 (&AuthenticationName); - return; - } - for (i = 0; i < namelen; i++) - AuthenticationName.data[i] = name[i]; - for (i = 0; i < datalen; i++) - AuthenticationData.data[i] = data[i]; - if (!(XdmcpReallocARRAYofARRAY8 (&AuthenticationNames, - AuthenticationNames.length + 1) && - XdmcpReallocARRAYofARRAY8 (&AuthenticationDatas, - AuthenticationDatas.length + 1) && - (newFuncs = (AuthenticationFuncsPtr) xalloc ( - (AuthenticationNames.length + 1) * sizeof (AuthenticationFuncsRec))))) - { - XdmcpDisposeARRAY8 (&AuthenticationName); - XdmcpDisposeARRAY8 (&AuthenticationData); - return; - } - for (i = 0; i < AuthenticationNames.length - 1; i++) - newFuncs[i] = AuthenticationFuncsList[i]; - newFuncs[AuthenticationNames.length-1].Validator = Validator; - newFuncs[AuthenticationNames.length-1].Generator = Generator; - newFuncs[AuthenticationNames.length-1].AddAuth = AddAuth; - xfree (AuthenticationFuncsList); - AuthenticationFuncsList = newFuncs; - AuthenticationNames.data[AuthenticationNames.length-1] = AuthenticationName; - AuthenticationDatas.data[AuthenticationDatas.length-1] = AuthenticationData; -} - -/* - * Select the authentication type to be used; this is - * set by the manager of the host to be connected to. - */ - -ARRAY8 noAuthenticationName = {(CARD16) 0, (CARD8Ptr) 0}; -ARRAY8 noAuthenticationData = {(CARD16) 0, (CARD8Ptr) 0}; -ARRAY8Ptr AuthenticationName = &noAuthenticationName; -ARRAY8Ptr AuthenticationData = &noAuthenticationData; -AuthenticationFuncsPtr AuthenticationFuncs; - -void -XdmcpSetAuthentication (name) - ARRAY8Ptr name; -{ - int i; - - for (i = 0; i < AuthenticationNames.length; i++) - if (XdmcpARRAY8Equal (&AuthenticationNames.data[i], name)) - { - AuthenticationName = &AuthenticationNames.data[i]; - AuthenticationData = &AuthenticationDatas.data[i]; - AuthenticationFuncs = &AuthenticationFuncsList[i]; - break; - } -} - -/* - * Register the host address for the display - */ - -static ARRAY16 ConnectionTypes; -static ARRAYofARRAY8 ConnectionAddresses; -static long xdmcpGeneration; - -void -XdmcpRegisterConnection (type, address, addrlen) - int type; - char *address; - int addrlen; -{ - int i; - CARD8 *newAddress; - - if (xdmcpGeneration != serverGeneration) - { - XdmcpDisposeARRAY16 (&ConnectionTypes); - XdmcpDisposeARRAYofARRAY8 (&ConnectionAddresses); - xdmcpGeneration = serverGeneration; - } - newAddress = (CARD8 *) xalloc (addrlen * sizeof (CARD8)); - if (!newAddress) - return; - if (!XdmcpReallocARRAY16 (&ConnectionTypes, ConnectionTypes.length + 1)) - { - xfree (newAddress); - return; - } - if (!XdmcpReallocARRAYofARRAY8 (&ConnectionAddresses, - ConnectionAddresses.length + 1)) - { - xfree (newAddress); - return; - } - ConnectionTypes.data[ConnectionTypes.length - 1] = (CARD16) type; - for (i = 0; i < addrlen; i++) - newAddress[i] = address[i]; - ConnectionAddresses.data[ConnectionAddresses.length-1].data = newAddress; - ConnectionAddresses.data[ConnectionAddresses.length-1].length = addrlen; -} - -/* - * Register an Authorization Name. XDMCP advertises this list - * to the manager. - */ - -static ARRAYofARRAY8 AuthorizationNames; - -void -XdmcpRegisterAuthorizations () -{ - XdmcpDisposeARRAYofARRAY8 (&AuthorizationNames); - RegisterAuthorizations (); -} - -void -XdmcpRegisterAuthorization (name, namelen) - char *name; - int namelen; -{ - ARRAY8 authName; - int i; - - authName.data = (CARD8 *) xalloc (namelen * sizeof (CARD8)); - if (!authName.data) - return; - if (!XdmcpReallocARRAYofARRAY8 (&AuthorizationNames, AuthorizationNames.length +1)) - { - xfree (authName.data); - return; - } - for (i = 0; i < namelen; i++) - authName.data[i] = (CARD8) name[i]; - authName.length = namelen; - AuthorizationNames.data[AuthorizationNames.length-1] = authName; -} - -/* - * Register the DisplayClass string - */ - -ARRAY8 DisplayClass; - -void -XdmcpRegisterDisplayClass (name, length) - char *name; - int length; -{ - int i; - - XdmcpDisposeARRAY8 (&DisplayClass); - if (!XdmcpAllocARRAY8 (&DisplayClass, length)) - return; - for (i = 0; i < length; i++) - DisplayClass.data[i] = (CARD8) name[i]; -} - -/* - * Register the Manufacturer display ID - */ - -ARRAY8 ManufacturerDisplayID; - -void -XdmcpRegisterManufacturerDisplayID (name, length) - char *name; - int length; -{ - int i; - - XdmcpDisposeARRAY8 (&ManufacturerDisplayID); - if (!XdmcpAllocARRAY8 (&ManufacturerDisplayID, length)) - return; - for (i = 0; i < length; i++) - ManufacturerDisplayID.data[i] = (CARD8) name[i]; -} - -/* - * initialize XDMCP; create the socket, compute the display - * number, set up the state machine - */ - -void -XdmcpInit() -{ - state = XDM_INIT_STATE; -#ifdef HASXDMAUTH - if (xdmAuthCookie) - XdmAuthenticationInit (xdmAuthCookie, strlen (xdmAuthCookie)); -#endif - if (state != XDM_OFF) - { - XdmcpRegisterAuthorizations(); - XdmcpRegisterDisplayClass (defaultDisplayClass, strlen (defaultDisplayClass)); - AccessUsingXdmcp(); - RegisterBlockAndWakeupHandlers (XdmcpBlockHandler, XdmcpWakeupHandler, - (pointer) 0); - timeOutRtx = 0; - DisplayNumber = (CARD16) atoi(display); - get_xdmcp_sock(); - send_packet(); - } -} - -void -XdmcpReset () -{ - state = XDM_INIT_STATE; - if (state != XDM_OFF) - { - RegisterBlockAndWakeupHandlers (XdmcpBlockHandler, XdmcpWakeupHandler, - (pointer) 0); - timeOutRtx = 0; - send_packet(); - } -} - -/* - * Called whenever a new connection is created; notices the - * first connection and saves it to terminate the session - * when it is closed - */ - -void -XdmcpOpenDisplay(sock) - int sock; -{ - if (state != XDM_AWAIT_MANAGE_RESPONSE) - return; - state = XDM_RUN_SESSION; - sessionSocket = sock; -} - -void -XdmcpCloseDisplay(sock) - int sock; -{ - if ((state != XDM_RUN_SESSION && state != XDM_AWAIT_ALIVE_RESPONSE) - || sessionSocket != sock) - return; - state = XDM_INIT_STATE; - if (OneSession) - dispatchException |= DE_TERMINATE; - else - dispatchException |= DE_RESET; - isItTimeToYield = TRUE; -} - -/* - * called before going to sleep, this routine - * may modify the timeout value about to be sent - * to select; in this way XDMCP can do appropriate things - * dynamically while starting up - */ - -/*ARGSUSED*/ -static void -XdmcpBlockHandler(data, wt, pReadmask) - pointer data; /* unused */ - struct timeval **wt; - pointer pReadmask; -{ - fd_set *LastSelectMask = (fd_set*)pReadmask; - CARD32 millisToGo, wtMillis; - static struct timeval waittime; - - if (state == XDM_OFF) - return; - FD_SET(xdmcpSocket, LastSelectMask); - if (timeOutTime == 0) - return; - millisToGo = GetTimeInMillis(); - if (millisToGo < timeOutTime) - millisToGo = timeOutTime - millisToGo; - else - millisToGo = 0; - if (*wt == NULL) - { - waittime.tv_sec = (millisToGo) / 1000; - waittime.tv_usec = 1000 * (millisToGo % 1000); - *wt = &waittime; - } - else - { - wtMillis = (*wt)->tv_sec * 1000 + (*wt)->tv_usec / 1000; - if (millisToGo < wtMillis) - { - (*wt)->tv_sec = (millisToGo) / 1000; - (*wt)->tv_usec = 1000 * (millisToGo % 1000); - } - } -} - -/* - * called after select returns; this routine will - * recognise when XDMCP packets await and - * process them appropriately - */ - -/*ARGSUSED*/ -static void -XdmcpWakeupHandler(data, i, pReadmask) - pointer data; /* unused */ - int i; - pointer pReadmask; -{ - fd_set* LastSelectMask = (fd_set*)pReadmask; - fd_set devicesReadable; - - if (state == XDM_OFF) - return; - if (i > 0) - { - if (FD_ISSET(xdmcpSocket, LastSelectMask)) - { - receive_packet(); - FD_CLR(xdmcpSocket, LastSelectMask); - } - XFD_ANDSET(&devicesReadable, LastSelectMask, &EnabledDevices); - if (XFD_ANYSET(&devicesReadable)) - { - if (state == XDM_AWAIT_USER_INPUT) - restart(); - else if (state == XDM_RUN_SESSION) - keepaliveDormancy = defaultKeepaliveDormancy; - } - if (XFD_ANYSET(&AllClients) && state == XDM_RUN_SESSION) - timeOutTime = GetTimeInMillis() + keepaliveDormancy * 1000; - } - else if (timeOutTime && GetTimeInMillis() >= timeOutTime) - { - if (state == XDM_RUN_SESSION) - { - state = XDM_KEEPALIVE; - send_packet(); - } - else - timeout(); - } -} - -/* - * This routine should be called from the routine that drives the - * user's host menu when the user selects a host - */ - -XdmcpSelectHost(host_sockaddr, host_len, AuthenticationName) - struct sockaddr_in *host_sockaddr; - int host_len; - ARRAY8Ptr AuthenticationName; -{ - state = XDM_START_CONNECTION; - memmove(&req_sockaddr, host_sockaddr, host_len); - req_socklen = host_len; - XdmcpSetAuthentication (AuthenticationName); - send_packet(); -} - -/* - * !!! this routine should be replaced by a routine that adds - * the host to the user's host menu. the current version just - * selects the first host to respond with willing message. - */ - -/*ARGSUSED*/ -XdmcpAddHost(from, fromlen, AuthenticationName, hostname, status) - struct sockaddr_in *from; - ARRAY8Ptr AuthenticationName, hostname, status; -{ - XdmcpSelectHost(from, fromlen, AuthenticationName); -} - -/* - * A message is queued on the socket; read it and - * do the appropriate thing - */ - -ARRAY8 UnwillingMessage = { (CARD8) 14, (CARD8 *) "Host unwilling" }; - -static void -receive_packet() -{ - struct sockaddr_in from; - int fromlen = sizeof(struct sockaddr_in); - XdmcpHeader header; - - /* read message off socket */ - if (!XdmcpFill (xdmcpSocket, &buffer, (struct sockaddr *) &from, &fromlen)) - return; - - /* reset retransmission backoff */ - timeOutRtx = 0; - - if (!XdmcpReadHeader (&buffer, &header)) - return; - - if (header.version != XDM_PROTOCOL_VERSION) - return; - - switch (header.opcode) { - case WILLING: - recv_willing_msg(&from, fromlen, header.length); - break; - case UNWILLING: - XdmcpFatal("Manager unwilling", &UnwillingMessage); - break; - case ACCEPT: - recv_accept_msg(header.length); - break; - case DECLINE: - recv_decline_msg(header.length); - break; - case REFUSE: - recv_refuse_msg(header.length); - break; - case FAILED: - recv_failed_msg(header.length); - break; - case ALIVE: - recv_alive_msg(header.length); - break; - } -} - -/* - * send the appropriate message given the current state - */ - -static -send_packet() -{ - int rtx; - switch (state) { - case XDM_QUERY: - case XDM_BROADCAST: - case XDM_INDIRECT: - send_query_msg(); - break; - case XDM_START_CONNECTION: - send_request_msg(); - break; - case XDM_MANAGE: - send_manage_msg(); - break; - case XDM_KEEPALIVE: - send_keepalive_msg(); - break; - } - rtx = (XDM_MIN_RTX << timeOutRtx); - if (rtx > XDM_MAX_RTX) - rtx = XDM_MAX_RTX; - timeOutTime = GetTimeInMillis() + rtx * 1000; -} - -/* - * The session is declared dead for some reason; too many - * timeouts, or Keepalive failure. - */ - -XdmcpDeadSession (reason) - char *reason; -{ - ErrorF ("XDM: %s, declaring session dead\n", reason); - state = XDM_INIT_STATE; - isItTimeToYield = TRUE; - dispatchException |= DE_RESET; - timeOutTime = 0; - timeOutRtx = 0; - send_packet(); -} - -/* - * Timeout waiting for an XDMCP response. - */ - -static void -timeout() -{ - timeOutRtx++; - if (state == XDM_AWAIT_ALIVE_RESPONSE && timeOutRtx >= XDM_KA_RTX_LIMIT ) - { - XdmcpDeadSession ("too many keepalive retransmissions"); - return; - } - else if (timeOutRtx >= XDM_RTX_LIMIT) - { - ErrorF("XDM: too many retransmissions\n"); - state = XDM_AWAIT_USER_INPUT; - timeOutTime = 0; - timeOutRtx = 0; - return; - } - - switch (state) { - case XDM_COLLECT_QUERY: - state = XDM_QUERY; - break; - case XDM_COLLECT_BROADCAST_QUERY: - state = XDM_BROADCAST; - break; - case XDM_COLLECT_INDIRECT_QUERY: - state = XDM_INDIRECT; - break; - case XDM_AWAIT_REQUEST_RESPONSE: - state = XDM_START_CONNECTION; - break; - case XDM_AWAIT_MANAGE_RESPONSE: - state = XDM_MANAGE; - break; - case XDM_AWAIT_ALIVE_RESPONSE: - state = XDM_KEEPALIVE; - break; - } - send_packet(); -} - -static -restart() -{ - state = XDM_INIT_STATE; - timeOutRtx = 0; - send_packet(); -} - -XdmcpCheckAuthentication (Name, Data, packet_type) - ARRAY8Ptr Name, Data; - int packet_type; -{ - return (XdmcpARRAY8Equal (Name, AuthenticationName) && - (AuthenticationName->length == 0 || - (*AuthenticationFuncs->Validator) (AuthenticationData, Data, packet_type))); -} - -XdmcpAddAuthorization (name, data) - ARRAY8Ptr name, data; -{ - Bool (*AddAuth)(), AddAuthorization(); - - if (AuthenticationFuncs && AuthenticationFuncs->AddAuth) - AddAuth = AuthenticationFuncs->AddAuth; - else - AddAuth = AddAuthorization; - return (*AddAuth) ((unsigned short)name->length, - (char *)name->data, - (unsigned short)data->length, - (char *)data->data); -} - -/* - * from here to the end of this file are routines private - * to the state machine. - */ - -static void -get_xdmcp_sock() -{ -#ifdef STREAMSCONN - struct netconfig *nconf; - - if ((xdmcpSocket = t_open("/dev/udp", O_RDWR, 0)) < 0) { - XdmcpWarning("t_open() of /dev/udp failed"); - return; - } - - if( t_bind(xdmcpSocket,NULL,NULL) < 0 ) { - XdmcpWarning("UDP socket creation failed"); - t_error("t_bind(xdmcpSocket) failed" ); - t_close(xdmcpSocket); - return; - } - - /* - * This part of the code looks contrived. It will actually fit in nicely - * when the CLTS part of Xtrans is implemented. - */ - - if( (nconf=getnetconfigent("udp")) == NULL ) { - XdmcpWarning("UDP socket creation failed: getnetconfigent()"); - t_unbind(xdmcpSocket); - t_close(xdmcpSocket); - return; - } - - if( netdir_options(nconf, ND_SET_BROADCAST, xdmcpSocket, NULL) ) { - XdmcpWarning("UDP set broadcast option failed: netdir_options()"); - freenetconfigent(nconf); - t_unbind(xdmcpSocket); - t_close(xdmcpSocket); - return; - } - - freenetconfigent(nconf); -#else -#ifndef _MINIX - int soopts = 1; - - if ((xdmcpSocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0) -#else /* MINIX */ - char *udp_device; - int r, s_errno; - nwio_udpopt_t udpopt; - nbio_ref_t ref; - - udp_device= getenv("UDP_DEVICE"); - if (udp_device == NULL) - udp_device= UDP_DEVICE; - xdmcpSocket= open(udp_device, O_RDWR); - if (xdmcpSocket != -1) - { - udpopt.nwuo_flags= NWUO_COPY | NWUO_LP_SEL | NWUO_EN_LOC | - NWUO_DI_BROAD | NWUO_RP_ANY | NWUO_RA_ANY | NWUO_RWDATALL | - NWUO_DI_IPOPT; - r= ioctl(xdmcpSocket, NWIOSUDPOPT, &udpopt); - if (r == -1) - { - s_errno= errno; - close(xdmcpSocket); - xdmcpSocket= -1; - errno= s_errno; - } - ioctl(xdmcpSocket, NWIOGUDPOPT, &udpopt); - ErrorF("0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n", - udpopt.nwuo_flags, - udpopt.nwuo_locport, - udpopt.nwuo_remport, - udpopt.nwuo_locaddr, - udpopt.nwuo_remaddr); - } - if (xdmcpSocket != -1) - { - fcntl(xdmcpSocket, F_SETFD, fcntl(xdmcpSocket, F_GETFD) | - FD_ASYNCHIO); - nbio_register(xdmcpSocket); - ref.ref_int= xdmcpSocket; - nbio_setcallback(xdmcpSocket, ASIO_READ, read_cb, ref); - } - if (xdmcpSocket == -1) -#endif /* !MINIX */ - XdmcpWarning("UDP socket creation failed"); -#ifdef SO_BROADCAST - else if (setsockopt(xdmcpSocket, SOL_SOCKET, SO_BROADCAST, (char *)&soopts, - sizeof(soopts)) < 0) - XdmcpWarning("UDP set broadcast socket-option failed"); -#endif /* SO_BROADCAST */ -#endif /* STREAMSCONN */ -} - -static void -send_query_msg() -{ - XdmcpHeader header; - Bool broadcast = FALSE; - int i; - - header.version = XDM_PROTOCOL_VERSION; - switch(state){ - case XDM_QUERY: - header.opcode = (CARD16) QUERY; - state = XDM_COLLECT_QUERY; - break; - case XDM_BROADCAST: - header.opcode = (CARD16) BROADCAST_QUERY; - state = XDM_COLLECT_BROADCAST_QUERY; - broadcast = TRUE; - break; - case XDM_INDIRECT: - header.opcode = (CARD16) INDIRECT_QUERY; - state = XDM_COLLECT_INDIRECT_QUERY; - break; - } - header.length = 1; - for (i = 0; i < AuthenticationNames.length; i++) - header.length += 2 + AuthenticationNames.data[i].length; - - XdmcpWriteHeader (&buffer, &header); - XdmcpWriteARRAYofARRAY8 (&buffer, &AuthenticationNames); - if (broadcast) - { - int i; - - for (i = 0; i < NumBroadcastAddresses; i++) - XdmcpFlush (xdmcpSocket, &buffer, &BroadcastAddresses[i], - sizeof (struct sockaddr_in)); - } - else - { - XdmcpFlush (xdmcpSocket, &buffer, &ManagerAddress, - sizeof (ManagerAddress)); - } -} - -static void -recv_willing_msg(from, fromlen, length) - struct sockaddr_in *from; - int fromlen; - unsigned length; -{ - ARRAY8 authenticationName; - ARRAY8 hostname; - ARRAY8 status; - - authenticationName.data = 0; - hostname.data = 0; - status.data = 0; - if (XdmcpReadARRAY8 (&buffer, &authenticationName) && - XdmcpReadARRAY8 (&buffer, &hostname) && - XdmcpReadARRAY8 (&buffer, &status)) - { - if (length == 6 + authenticationName.length + - hostname.length + status.length) - { - switch (state) - { - case XDM_COLLECT_QUERY: - XdmcpSelectHost(from, fromlen, &authenticationName); - break; - case XDM_COLLECT_BROADCAST_QUERY: - case XDM_COLLECT_INDIRECT_QUERY: - XdmcpAddHost(from, fromlen, &authenticationName, &hostname, &status); - break; - } - } - } - XdmcpDisposeARRAY8 (&authenticationName); - XdmcpDisposeARRAY8 (&hostname); - XdmcpDisposeARRAY8 (&status); -} - -static void -send_request_msg() -{ - XdmcpHeader header; - int length; - int i; - ARRAY8 authenticationData; - - header.version = XDM_PROTOCOL_VERSION; - header.opcode = (CARD16) REQUEST; - - length = 2; /* display number */ - length += 1 + 2 * ConnectionTypes.length; /* connection types */ - length += 1; /* connection addresses */ - for (i = 0; i < ConnectionAddresses.length; i++) - length += 2 + ConnectionAddresses.data[i].length; - authenticationData.length = 0; - authenticationData.data = 0; - if (AuthenticationFuncs) - { - (*AuthenticationFuncs->Generator) (AuthenticationData, - &authenticationData, - REQUEST); - } - length += 2 + AuthenticationName->length; /* authentication name */ - length += 2 + authenticationData.length; /* authentication data */ - length += 1; /* authorization names */ - for (i = 0; i < AuthorizationNames.length; i++) - length += 2 + AuthorizationNames.data[i].length; - length += 2 + ManufacturerDisplayID.length; /* display ID */ - header.length = length; - - if (!XdmcpWriteHeader (&buffer, &header)) - { - XdmcpDisposeARRAY8 (&authenticationData); - return; - } - XdmcpWriteCARD16 (&buffer, DisplayNumber); - XdmcpWriteARRAY16 (&buffer, &ConnectionTypes); - XdmcpWriteARRAYofARRAY8 (&buffer, &ConnectionAddresses); - - XdmcpWriteARRAY8 (&buffer, AuthenticationName); - XdmcpWriteARRAY8 (&buffer, &authenticationData); - XdmcpDisposeARRAY8 (&authenticationData); - XdmcpWriteARRAYofARRAY8 (&buffer, &AuthorizationNames); - XdmcpWriteARRAY8 (&buffer, &ManufacturerDisplayID); - if (XdmcpFlush (xdmcpSocket, &buffer, &req_sockaddr, req_socklen)) - state = XDM_AWAIT_REQUEST_RESPONSE; -} - -static void -recv_accept_msg(length) - unsigned length; -{ - CARD32 AcceptSessionID; - ARRAY8 AcceptAuthenticationName, AcceptAuthenticationData; - ARRAY8 AcceptAuthorizationName, AcceptAuthorizationData; - - if (state != XDM_AWAIT_REQUEST_RESPONSE) - return; - AcceptAuthenticationName.data = 0; - AcceptAuthenticationData.data = 0; - AcceptAuthorizationName.data = 0; - AcceptAuthorizationData.data = 0; - if (XdmcpReadCARD32 (&buffer, &AcceptSessionID) && - XdmcpReadARRAY8 (&buffer, &AcceptAuthenticationName) && - XdmcpReadARRAY8 (&buffer, &AcceptAuthenticationData) && - XdmcpReadARRAY8 (&buffer, &AcceptAuthorizationName) && - XdmcpReadARRAY8 (&buffer, &AcceptAuthorizationData)) - { - if (length == 12 + AcceptAuthenticationName.length + - AcceptAuthenticationData.length + - AcceptAuthorizationName.length + - AcceptAuthorizationData.length) - { - if (!XdmcpCheckAuthentication (&AcceptAuthenticationName, - &AcceptAuthenticationData, ACCEPT)) - { - XdmcpFatal ("Authentication Failure", &AcceptAuthenticationName); - } - /* permit access control manipulations from this host */ - AugmentSelf (&req_sockaddr, req_socklen); - /* if the authorization specified in the packet fails - * to be acceptable, enable the local addresses - */ - if (!XdmcpAddAuthorization (&AcceptAuthorizationName, - &AcceptAuthorizationData)) - { - AddLocalHosts (); - } - SessionID = AcceptSessionID; - state = XDM_MANAGE; - send_packet(); - } - } - XdmcpDisposeARRAY8 (&AcceptAuthenticationName); - XdmcpDisposeARRAY8 (&AcceptAuthenticationData); - XdmcpDisposeARRAY8 (&AcceptAuthorizationName); - XdmcpDisposeARRAY8 (&AcceptAuthorizationData); -} - -static void -recv_decline_msg(length) - unsigned length; -{ - ARRAY8 status, DeclineAuthenticationName, DeclineAuthenticationData; - - status.data = 0; - DeclineAuthenticationName.data = 0; - DeclineAuthenticationData.data = 0; - if (XdmcpReadARRAY8 (&buffer, &status) && - XdmcpReadARRAY8 (&buffer, &DeclineAuthenticationName) && - XdmcpReadARRAY8 (&buffer, &DeclineAuthenticationData)) - { - if (length == 6 + status.length + - DeclineAuthenticationName.length + - DeclineAuthenticationData.length && - XdmcpCheckAuthentication (&DeclineAuthenticationName, - &DeclineAuthenticationData, DECLINE)) - { - XdmcpFatal ("Session declined", &status); - } - } - XdmcpDisposeARRAY8 (&status); - XdmcpDisposeARRAY8 (&DeclineAuthenticationName); - XdmcpDisposeARRAY8 (&DeclineAuthenticationData); -} - -static void -send_manage_msg() -{ - XdmcpHeader header; - - header.version = XDM_PROTOCOL_VERSION; - header.opcode = (CARD16) MANAGE; - header.length = 8 + DisplayClass.length; - - if (!XdmcpWriteHeader (&buffer, &header)) - return; - XdmcpWriteCARD32 (&buffer, SessionID); - XdmcpWriteCARD16 (&buffer, DisplayNumber); - XdmcpWriteARRAY8 (&buffer, &DisplayClass); - state = XDM_AWAIT_MANAGE_RESPONSE; - XdmcpFlush (xdmcpSocket, &buffer, &req_sockaddr, req_socklen); -} - -static void -recv_refuse_msg(length) - unsigned length; -{ - CARD32 RefusedSessionID; - - if (state != XDM_AWAIT_MANAGE_RESPONSE) - return; - if (length != 4) - return; - if (XdmcpReadCARD32 (&buffer, &RefusedSessionID)) - { - if (RefusedSessionID == SessionID) - { - state = XDM_START_CONNECTION; - send_packet(); - } - } -} - -static void -recv_failed_msg(length) - unsigned length; -{ - CARD32 FailedSessionID; - ARRAY8 status; - - if (state != XDM_AWAIT_MANAGE_RESPONSE) - return; - status.data = 0; - if (XdmcpReadCARD32 (&buffer, &FailedSessionID) && - XdmcpReadARRAY8 (&buffer, &status)) - { - if (length == 6 + status.length && - SessionID == FailedSessionID) - { - XdmcpFatal ("Session failed", &status); - } - } - XdmcpDisposeARRAY8 (&status); -} - -static void -send_keepalive_msg() -{ - XdmcpHeader header; - - header.version = XDM_PROTOCOL_VERSION; - header.opcode = (CARD16) KEEPALIVE; - header.length = 6; - - XdmcpWriteHeader (&buffer, &header); - XdmcpWriteCARD16 (&buffer, DisplayNumber); - XdmcpWriteCARD32 (&buffer, SessionID); - - state = XDM_AWAIT_ALIVE_RESPONSE; - XdmcpFlush (xdmcpSocket, &buffer, &req_sockaddr, req_socklen); -} - -static void -recv_alive_msg (length) - unsigned length; -{ - CARD8 SessionRunning; - CARD32 AliveSessionID; - int dormancy; - - if (state != XDM_AWAIT_ALIVE_RESPONSE) - return; - if (length != 5) - return; - if (XdmcpReadCARD8 (&buffer, &SessionRunning) && - XdmcpReadCARD32 (&buffer, &AliveSessionID)) - { - if (SessionRunning && AliveSessionID == SessionID) - { - /* backoff dormancy period */ - state = XDM_RUN_SESSION; - if ((GetTimeInMillis() - lastDeviceEventTime.milliseconds) > - keepaliveDormancy * 1000) - { - keepaliveDormancy <<= 1; - if (keepaliveDormancy > XDM_MAX_DORMANCY) - keepaliveDormancy = XDM_MAX_DORMANCY; - } - timeOutTime = GetTimeInMillis() + keepaliveDormancy * 1000; - } - else - { - XdmcpDeadSession ("Alive respose indicates session dead"); - } - } -} - -static -XdmcpFatal (type, status) - char *type; - ARRAY8Ptr status; -{ - FatalError ("XDMCP fatal error: %s %*.*s\n", type, - status->length, status->length, status->data); -} - -static -XdmcpWarning(str) - char *str; -{ - ErrorF("XDMCP warning: %s\n", str); -} - -static -get_manager_by_name(argc, argv, i) - int argc, i; - char **argv; -{ - struct hostent *hep; - - if (i == argc) - { - ErrorF("Xserver: missing host name in command line\n"); - exit(1); - } - if (!(hep = gethostbyname(argv[i]))) - { - ErrorF("Xserver: unknown host: %s\n", argv[i]); - exit(1); - } -#ifndef _MINIX - if (hep->h_length == sizeof (struct in_addr)) -#else - if (hep->h_length == sizeof (ipaddr_t)) -#endif - { - memmove(&ManagerAddress.sin_addr, hep->h_addr, hep->h_length); -#ifdef BSD44SOCKETS - ManagerAddress.sin_len = sizeof(ManagerAddress); -#endif - ManagerAddress.sin_family = AF_INET; - ManagerAddress.sin_port = htons (xdm_udp_port); - } - else - { - ErrorF ("Xserver: host on strange network %s\n", argv[i]); - exit (1); - } -} - -#ifdef MINIX -static char read_buffer[XDM_MAX_MSGLEN+sizeof(udp_io_hdr_t)]; -static int read_inprogress; -static int read_size; - -int -XdmcpFill (fd, buffer, from, fromlen) -int fd; -XdmcpBufferPtr buffer; -XdmcpNetaddr from; /* return */ -int *fromlen; /* return */ -{ - int r; - - if (read_inprogress) - return 0; - - if (read_size != 0) - { - r= read_size; - read_size= 0; - return MNX_XdmcpFill(fd, buffer, from, fromlen, read_buffer, - r); - } - - r= read(fd, read_buffer, sizeof(read_buffer)); - if (r > 0) - { - return MNX_XdmcpFill(fd, buffer, from, fromlen, read_buffer, - r); - } - else if (r == -1 && errno == EINPROGRESS) - { - read_inprogress= 1; - nbio_inprogress(fd, ASIO_READ, 1 /* read */, 0 /* write */, - 0 /* except */); - return 0; - } - else - FatalError("XdmcpFill: read failed: %s\n", - r == 0 ? "EOF" : strerror(errno)); - return 0; -} - -static void read_cb(ref, res, err) -nbio_ref_t ref; -int res; -int err; -{ - if (res <= 0) - { - FatalError("xdmcp'read_cb: read failed: %s\n", - res == 0 ? "EOF" : strerror(err)); - } - read_inprogress= 0; - read_size= res; -} -#endif - -#else -static int xdmcp_non_empty; /* avoid complaint by ranlib */ -#endif /* XDMCP */