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 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  26
  27                         All Rights Reserved
  28
  29 Permission to use, copy, modify, and distribute this software and its
  30 documentation for any purpose and without fee is hereby granted,
  31 provided that the above copyright notice appear in all copies and that
  32 both that copyright notice and this permission notice appear in
  33 supporting documentation, and that the name of Digital not be
  34 used in advertising or publicity pertaining to distribution of the
  35 software without specific, written prior permission.
  36
  37 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  39 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  43 SOFTWARE.
  44
  45 ******************************************************************/
  46
  47 #ifdef HAVE_DIX_CONFIG_H
  48 #include <dix-config.h>
  49 #endif
  50
  51 #ifndef _OSDEP_H_
  52 #define _OSDEP_H_ 1
  53
  54 #if defined(XDMCP) || defined(HASXDMAUTH)
  55 #include <X11/Xdmcp.h>
  56 #endif
  57
  58 #ifdef _POSIX_SOURCE
  59 #include <limits.h>
  60 #else
  61 #define _POSIX_SOURCE
  62 #include <limits.h>
  63 #undef _POSIX_SOURCE
  64 #endif
  65
  66 #ifndef OPEN_MAX
  67 #ifdef SVR4
  68 #define OPEN_MAX 256
  69 #else
  70 #include <sys/param.h>
  71 #ifndef OPEN_MAX
  72 #if defined(NOFILE) && !defined(NOFILES_MAX)
  73 #define OPEN_MAX NOFILE
  74 #else
  75 #if !defined(WIN32)
  76 #define OPEN_MAX NOFILES_MAX
  77 #else
  78 #define OPEN_MAX 256
  79 #endif
  80 #endif
  81 #endif
  82 #endif
  83 #endif
  84
  85 #include <X11/Xpoll.h>
  86
  87 /*
  88  * MAXSOCKS is used only for initialising MaxClients when no other method
  89  * like sysconf(_SC_OPEN_MAX) is not supported.
  90  */
  91
  92 #if OPEN_MAX <= 256
  93 #define MAXSOCKS (OPEN_MAX - 1)
  94 #else
  95 #define MAXSOCKS 256
  96 #endif
  97
  98 /* MAXSELECT is the number of fds that select() can handle */
  99 #define MAXSELECT (sizeof(fd_set) * NBBY)
 100
 101 #include <stddef.h>
 102
 103 #if defined(XDMCP) || defined(HASXDMAUTH)
 104 typedef Bool (*ValidatorFunc) (ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
 105 typedef Bool (*GeneratorFunc) (ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
 106 typedef Bool (*AddAuthorFunc) (unsigned name_length, const char *name,
 107                                unsigned data_length, char *data);
 108 #endif
 109
 110 typedef struct _connectionInput *ConnectionInputPtr;
 111 typedef struct _connectionOutput *ConnectionOutputPtr;
 112
 113 struct _osComm;
 114
 115 #define AuthInitArgs void
 116 typedef void (*AuthInitFunc) (AuthInitArgs);
 117
 118 #define AuthAddCArgs unsigned short data_length, const char *data, XID id
 119 typedef int (*AuthAddCFunc) (AuthAddCArgs);
 120
 121 #define AuthCheckArgs unsigned short data_length, const char *data, ClientPtr client, const char **reason
 122 typedef XID (*AuthCheckFunc) (AuthCheckArgs);
 123
 124 #define AuthFromIDArgs XID id, unsigned short *data_lenp, char **datap
 125 typedef int (*AuthFromIDFunc) (AuthFromIDArgs);
 126
 127 #define AuthGenCArgs unsigned data_length, const char *data, XID id, unsigned *data_length_return, char **data_return
 128 typedef XID (*AuthGenCFunc) (AuthGenCArgs);
 129
 130 #define AuthRemCArgs unsigned short data_length, const char *data
 131 typedef int (*AuthRemCFunc) (AuthRemCArgs);
 132
 133 #define AuthRstCArgs void
 134 typedef int (*AuthRstCFunc) (AuthRstCArgs);
 135
 136 #define AuthToIDArgs unsigned short data_length, char *data
 137 typedef XID (*AuthToIDFunc) (AuthToIDArgs);
 138
 139 typedef void (*OsCloseFunc) (ClientPtr);
 140
 141 typedef int (*OsFlushFunc) (ClientPtr who, struct _osComm * oc, char *extraBuf,
 142                             int extraCount);
 143
 144 typedef struct _osComm {
 145     int fd;
 146     ConnectionInputPtr input;
 147     ConnectionOutputPtr output;
 148     XID auth_id;                /* authorization id */
 149     CARD32 conn_time;           /* timestamp if not established, else 0  */
 150     struct _XtransConnInfo *trans_conn; /* transport connection object */
 151 } OsCommRec, *OsCommPtr;
 152
 153 extern int FlushClient(ClientPtr /*who */ ,
 154                        OsCommPtr /*oc */ ,
 155                        const void * /*extraBuf */ ,
 156                        int      /*extraCount */
 157     );
 158
 159 extern void FreeOsBuffers(OsCommPtr     /*oc */
 160     );
 161
 162 #include "dix.h"
 163
 164 extern fd_set AllSockets;
 165 extern fd_set AllClients;
 166 extern fd_set LastSelectMask;
 167 extern fd_set WellKnownConnections;
 168 extern fd_set EnabledDevices;
 169 extern fd_set ClientsWithInput;
 170 extern fd_set ClientsWriteBlocked;
 171 extern fd_set OutputPending;
 172 extern fd_set IgnoredClientsWithInput;
 173
 174 #ifndef WIN32
 175 extern int *ConnectionTranslation;
 176 #else
 177 extern int GetConnectionTranslation(int conn);
 178 extern void SetConnectionTranslation(int conn, int client);
 179 extern void ClearConnectionTranslation(void);
 180 #endif
 181
 182 extern Bool NewOutputPending;
 183 extern Bool AnyClientsWriteBlocked;
 184
 185 extern WorkQueuePtr workQueue;
 186
 187 /* in WaitFor.c */
 188 #ifdef WIN32
 189 typedef long int fd_mask;
 190 #endif
 191 #define ffs mffs
 192 extern int mffs(fd_mask);
 193
 194 /* in access.c */
 195 extern Bool ComputeLocalClient(ClientPtr client);
 196
 197 /* in auth.c */
 198 extern void GenerateRandomData(int len, char *buf);
 199
 200 /* in mitauth.c */
 201 extern XID MitCheckCookie(AuthCheckArgs);
 202 extern XID MitGenerateCookie(AuthGenCArgs);
 203 extern XID MitToID(AuthToIDArgs);
 204 extern int MitAddCookie(AuthAddCArgs);
 205 extern int MitFromID(AuthFromIDArgs);
 206 extern int MitRemoveCookie(AuthRemCArgs);
 207 extern int MitResetCookie(AuthRstCArgs);
 208
 209 /* in xdmauth.c */
 210 #ifdef HASXDMAUTH
 211 extern XID XdmCheckCookie(AuthCheckArgs);
 212 extern XID XdmToID(AuthToIDArgs);
 213 extern int XdmAddCookie(AuthAddCArgs);
 214 extern int XdmFromID(AuthFromIDArgs);
 215 extern int XdmRemoveCookie(AuthRemCArgs);
 216 extern int XdmResetCookie(AuthRstCArgs);
 217 #endif
 218
 219 /* in rpcauth.c */
 220 #ifdef SECURE_RPC
 221 extern void SecureRPCInit(AuthInitArgs);
 222 extern XID SecureRPCCheck(AuthCheckArgs);
 223 extern XID SecureRPCToID(AuthToIDArgs);
 224 extern int SecureRPCAdd(AuthAddCArgs);
 225 extern int SecureRPCFromID(AuthFromIDArgs);
 226 extern int SecureRPCRemove(AuthRemCArgs);
 227 extern int SecureRPCReset(AuthRstCArgs);
 228 #endif
 229
 230 #ifdef XDMCP
 231 /* in xdmcp.c */
 232 extern void XdmcpUseMsg(void);
 233 extern int XdmcpOptions(int argc, char **argv, int i);
 234 extern void XdmcpRegisterConnection(int type, const char *address, int addrlen);
 235 extern void XdmcpRegisterAuthorizations(void);
 236 extern void XdmcpRegisterAuthorization(const char *name, int namelen);
 237 extern void XdmcpInit(void);
 238 extern void XdmcpReset(void);
 239 extern void XdmcpOpenDisplay(int sock);
 240 extern void XdmcpCloseDisplay(int sock);
 241 extern void XdmcpRegisterAuthentication(const char *name,
 242                                         int namelen,
 243                                         const char *data,
 244                                         int datalen,
 245                                         ValidatorFunc Validator,
 246                                         GeneratorFunc Generator,
 247                                         AddAuthorFunc AddAuth);
 248
 249 struct sockaddr_in;
 250 extern void XdmcpRegisterBroadcastAddress(const struct sockaddr_in *addr);
 251 #endif
 252
 253 #ifdef HASXDMAUTH
 254 extern void XdmAuthenticationInit(const char *cookie, int cookie_length);
 255 #endif
 256
 257 #endif                          /* _OSDEP_H_ */