xorg-server-1.4/os/osdep.h

   1 /***********************************************************
   2
   3 Copyright 1987, 1998  The Open Group
   4
   5 Permission to use, copy, modify, distribute, and sell this software and its
   6 documentation for any purpose is hereby granted without fee, provided that
   7 the above copyright notice appear in all copies and that both that
   8 copyright notice and this permission notice appear in supporting
   9 documentation.
  10
  11 The above copyright notice and this permission notice shall be included in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20
  21 Except as contained in this notice, the name of The Open Group shall not be
  22 used in advertising or otherwise to promote the sale, use or other dealings
  23 in this Software without prior written authorization from The Open Group.
  24
  25
  26 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  27
  28                         All Rights Reserved
  29
  30 Permission to use, copy, modify, and distribute this software and its
  31 documentation for any purpose and without fee is hereby granted,
  32 provided that the above copyright notice appear in all copies and that
  33 both that copyright notice and this permission notice appear in
  34 supporting documentation, and that the name of Digital not be
  35 used in advertising or publicity pertaining to distribution of the
  36 software without specific, written prior permission.
  37
  38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  44 SOFTWARE.
  45
  46 ******************************************************************/
  47
  48 #ifdef HAVE_DIX_CONFIG_H
  49 #include <dix-config.h>
  50 #endif
  51
  52 #ifndef _OSDEP_H_
  53 #define _OSDEP_H_ 1
  54
  55 #define BOTIMEOUT 200 /* in milliseconds */
  56 #define BUFSIZE 4096
  57 #define BUFWATERMARK 8192
  58
  59 #include <X11/Xdmcp.h>
  60
  61 #ifndef sgi         /* SGI defines OPEN_MAX in a useless way */
  62 #ifndef X_NOT_POSIX
  63 #ifdef _POSIX_SOURCE
  64 #include <limits.h>
  65 #else
  66 #define _POSIX_SOURCE
  67 #include <limits.h>
  68 #undef _POSIX_SOURCE
  69 #endif
  70 #else /* X_NOT_POSIX */
  71 #ifdef WIN32
  72 #define _POSIX_
  73 #include <limits.h>
  74 #undef _POSIX_
  75 #endif
  76 #endif /* X_NOT_POSIX */
  77 #endif
  78
  79 #ifdef __QNX__
  80 #define NOFILES_MAX 256
  81 #endif
  82 #ifndef OPEN_MAX
  83 #ifdef SVR4
  84 #define OPEN_MAX 256
  85 #else
  86 #include <sys/param.h>
  87 #ifndef OPEN_MAX
  88 #if defined(NOFILE) && !defined(NOFILES_MAX)
  89 #define OPEN_MAX NOFILE
  90 #else
  91 #if !defined(WIN32)
  92 #define OPEN_MAX NOFILES_MAX
  93 #else
  94 #define OPEN_MAX 256
  95 #endif
  96 #endif
  97 #endif
  98 #endif
  99 #endif
 100
 101 #include <X11/Xpoll.h>
 102
 103 /*
 104  * MAXSOCKS is used only for initialising MaxClients when no other method
 105  * like sysconf(_SC_OPEN_MAX) is not supported.
 106  */
 107
 108 #if OPEN_MAX <= 256
 109 #define MAXSOCKS (OPEN_MAX - 1)
 110 #else
 111 #define MAXSOCKS 256
 112 #endif
 113
 114 /* MAXSELECT is the number of fds that select() can handle */
 115 #define MAXSELECT (sizeof(fd_set) * NBBY)
 116
 117 #ifndef HAS_GETDTABLESIZE
 118 #if !defined(hpux) && !defined(SVR4) && !defined(SYSV)
 119 #define HAS_GETDTABLESIZE
 120 #endif
 121 #endif
 122
 123 #include <stddef.h>
 124
 125 typedef Bool (*ValidatorFunc)(ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
 126 typedef Bool (*GeneratorFunc)(ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
 127 typedef Bool (*AddAuthorFunc)(unsigned name_length, char *name, unsigned data_length, char *data);
 128
 129 typedef struct _connectionInput {
 130     struct _connectionInput *next;
 131     char *buffer;               /* contains current client input */
 132     char *bufptr;               /* pointer to current start of data */
 133     int  bufcnt;                /* count of bytes in buffer */
 134     int lenLastReq;
 135     int size;
 136 } ConnectionInput, *ConnectionInputPtr;
 137
 138 typedef struct _connectionOutput {
 139     struct _connectionOutput *next;
 140     int size;
 141     unsigned char *buf;
 142     int count;
 143 } ConnectionOutput, *ConnectionOutputPtr;
 144
 145 struct _osComm;
 146
 147 #define AuthInitArgs void
 148 typedef void (*AuthInitFunc) (AuthInitArgs);
 149
 150 #define AuthAddCArgs unsigned short data_length, char *data, XID id
 151 typedef int (*AuthAddCFunc) (AuthAddCArgs);
 152
 153 #define AuthCheckArgs unsigned short data_length, char *data, ClientPtr client, char **reason
 154 typedef XID (*AuthCheckFunc) (AuthCheckArgs);
 155
 156 #define AuthFromIDArgs XID id, unsigned short *data_lenp, char **datap
 157 typedef int (*AuthFromIDFunc) (AuthFromIDArgs);
 158
 159 #define AuthGenCArgs unsigned data_length, char *data, XID id, unsigned *data_length_return, char **data_return
 160 typedef XID (*AuthGenCFunc) (AuthGenCArgs);
 161
 162 #define AuthRemCArgs unsigned short data_length, char *data
 163 typedef int (*AuthRemCFunc) (AuthRemCArgs);
 164
 165 #define AuthRstCArgs void
 166 typedef int (*AuthRstCFunc) (AuthRstCArgs);
 167
 168 #define AuthToIDArgs unsigned short data_length, char *data
 169 typedef XID (*AuthToIDFunc) (AuthToIDArgs);
 170
 171 typedef void (*OsCloseFunc)(ClientPtr);
 172
 173 typedef int (*OsFlushFunc)(ClientPtr who, struct _osComm * oc, char* extraBuf, int extraCount);
 174
 175 typedef struct _osComm {
 176     int fd;
 177     ConnectionInputPtr input;
 178     ConnectionOutputPtr output;
 179     XID auth_id;                /* authorization id */
 180     CARD32 conn_time;           /* timestamp if not established, else 0  */
 181     struct _XtransConnInfo *trans_conn; /* transport connection object */
 182 } OsCommRec, *OsCommPtr;
 183
 184 extern int FlushClient(
 185     ClientPtr /*who*/,
 186     OsCommPtr /*oc*/,
 187     char* /*extraBuf*/,
 188     int /*extraCount*/
 189 );
 190
 191 extern void FreeOsBuffers(
 192     OsCommPtr /*oc*/
 193 );
 194
 195 #include "dix.h"
 196
 197 extern fd_set AllSockets;
 198 extern fd_set AllClients;
 199 extern fd_set LastSelectMask;
 200 extern fd_set WellKnownConnections;
 201 extern fd_set EnabledDevices;
 202 extern fd_set ClientsWithInput;
 203 extern fd_set ClientsWriteBlocked;
 204 extern fd_set OutputPending;
 205 extern fd_set IgnoredClientsWithInput;
 206
 207 #ifndef WIN32
 208 extern int *ConnectionTranslation;
 209 #else
 210 extern int GetConnectionTranslation(int conn);
 211 extern void SetConnectionTranslation(int conn, int client);
 212 extern void ClearConnectionTranslation();
 213 #endif
 214
 215 extern Bool NewOutputPending;
 216 extern Bool AnyClientsWriteBlocked;
 217
 218 extern WorkQueuePtr workQueue;
 219
 220 /* added by raphael */
 221 #ifdef WIN32
 222 typedef long int fd_mask;
 223 #endif
 224 #define ffs mffs
 225 extern int mffs(fd_mask);
 226
 227 /* in auth.c */
 228 extern void GenerateRandomData (int len, char *buf);
 229
 230 /* in mitauth.c */
 231 extern XID  MitCheckCookie    (AuthCheckArgs);
 232 extern XID  MitGenerateCookie (AuthGenCArgs);
 233 extern XID  MitToID           (AuthToIDArgs);
 234 extern int  MitAddCookie      (AuthAddCArgs);
 235 extern int  MitFromID         (AuthFromIDArgs);
 236 extern int  MitRemoveCookie   (AuthRemCArgs);
 237 extern int  MitResetCookie    (AuthRstCArgs);
 238
 239 /* in xdmauth.c */
 240 #ifdef HASXDMAUTH
 241 extern XID  XdmCheckCookie    (AuthCheckArgs);
 242 extern XID  XdmToID           (AuthToIDArgs);
 243 extern int  XdmAddCookie      (AuthAddCArgs);
 244 extern int  XdmFromID         (AuthFromIDArgs);
 245 extern int  XdmRemoveCookie   (AuthRemCArgs);
 246 extern int  XdmResetCookie    (AuthRstCArgs);
 247 #endif
 248
 249 /* in rpcauth.c */
 250 #ifdef SECURE_RPC
 251 extern void SecureRPCInit     (AuthInitArgs);
 252 extern XID  SecureRPCCheck    (AuthCheckArgs);
 253 extern XID  SecureRPCToID     (AuthToIDArgs);
 254 extern int  SecureRPCAdd      (AuthAddCArgs);
 255 extern int  SecureRPCFromID   (AuthFromIDArgs);
 256 extern int  SecureRPCRemove   (AuthRemCArgs);
 257 extern int  SecureRPCReset    (AuthRstCArgs);
 258 #endif
 259
 260 /* in secauth.c */
 261 extern XID AuthSecurityCheck (AuthCheckArgs);
 262
 263 /* in xdmcp.c */
 264 extern void XdmcpUseMsg (void);
 265 extern int XdmcpOptions(int argc, char **argv, int i);
 266 extern void XdmcpRegisterConnection (
 267     int     type,
 268     char    *address,
 269     int     addrlen);
 270 extern void XdmcpRegisterAuthorizations (void);
 271 extern void XdmcpRegisterAuthorization (char *name, int namelen);
 272 extern void XdmcpInit (void);
 273 extern void XdmcpReset (void);
 274 extern void XdmcpOpenDisplay(int sock);
 275 extern void XdmcpCloseDisplay(int sock);
 276 extern void XdmcpRegisterAuthentication (
 277     char    *name,
 278     int     namelen,
 279     char    *data,
 280     int     datalen,
 281     ValidatorFunc Validator,
 282     GeneratorFunc Generator,
 283     AddAuthorFunc AddAuth);
 284
 285 struct sockaddr_in;
 286 extern void XdmcpRegisterBroadcastAddress (struct sockaddr_in *addr);
 287
 288 #ifdef HASXDMAUTH
 289 extern void XdmAuthenticationInit (char *cookie, int cookie_length);
 290 #endif
 291
 292 #endif /* _OSDEP_H_ */