osdep.h revision 678161bd 
1/***********************************************************
2
3Copyright 1987, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
26
27                        All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Digital not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
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 512
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) || defined(__CYGWIN__)
76#define OPEN_MAX NOFILES_MAX
77#else
78#define OPEN_MAX 512
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 <= 512
93#define MAXSOCKS (OPEN_MAX - 1)
94#else
95#define MAXSOCKS 512
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)
104typedef Bool (*ValidatorFunc) (ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
105typedef Bool (*GeneratorFunc) (ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
106typedef Bool (*AddAuthorFunc) (unsigned name_length, const char *name,
107                               unsigned data_length, char *data);
108#endif
109
110typedef struct _connectionInput *ConnectionInputPtr;
111typedef struct _connectionOutput *ConnectionOutputPtr;
112
113struct _osComm;
114
115#define AuthInitArgs void
116typedef void (*AuthInitFunc) (AuthInitArgs);
117
118#define AuthAddCArgs unsigned short data_length, const char *data, XID id
119typedef int (*AuthAddCFunc) (AuthAddCArgs);
120
121#define AuthCheckArgs unsigned short data_length, const char *data, ClientPtr client, const char **reason
122typedef XID (*AuthCheckFunc) (AuthCheckArgs);
123
124#define AuthFromIDArgs XID id, unsigned short *data_lenp, char **datap
125typedef int (*AuthFromIDFunc) (AuthFromIDArgs);
126
127#define AuthGenCArgs unsigned data_length, const char *data, XID id, unsigned *data_length_return, char **data_return
128typedef XID (*AuthGenCFunc) (AuthGenCArgs);
129
130#define AuthRemCArgs unsigned short data_length, const char *data
131typedef int (*AuthRemCFunc) (AuthRemCArgs);
132
133#define AuthRstCArgs void
134typedef int (*AuthRstCFunc) (AuthRstCArgs);
135
136typedef void (*OsCloseFunc) (ClientPtr);
137
138typedef int (*OsFlushFunc) (ClientPtr who, struct _osComm * oc, char *extraBuf,
139                            int extraCount);
140
141typedef struct _osComm {
142    int fd;
143    ConnectionInputPtr input;
144    ConnectionOutputPtr output;
145    XID auth_id;                /* authorization id */
146    CARD32 conn_time;           /* timestamp if not established, else 0  */
147    struct _XtransConnInfo *trans_conn; /* transport connection object */
148} OsCommRec, *OsCommPtr;
149
150extern int FlushClient(ClientPtr /*who */ ,
151                       OsCommPtr /*oc */ ,
152                       const void * /*extraBuf */ ,
153                       int      /*extraCount */
154    );
155
156extern void FreeOsBuffers(OsCommPtr     /*oc */
157    );
158
159#include "dix.h"
160
161extern fd_set AllSockets;
162extern fd_set AllClients;
163extern fd_set LastSelectMask;
164extern fd_set WellKnownConnections;
165extern fd_set EnabledDevices;
166extern fd_set ClientsWithInput;
167extern fd_set ClientsWriteBlocked;
168extern fd_set OutputPending;
169extern fd_set IgnoredClientsWithInput;
170
171#if !defined(WIN32) || defined(__CYGWIN__)
172extern int *ConnectionTranslation;
173#else
174extern int GetConnectionTranslation(int conn);
175extern void SetConnectionTranslation(int conn, int client);
176extern void ClearConnectionTranslation(void);
177#endif
178
179extern Bool NewOutputPending;
180extern Bool AnyClientsWriteBlocked;
181
182extern WorkQueuePtr workQueue;
183
184/* in WaitFor.c */
185#if defined(WIN32) && !defined(__CYGWIN__)
186typedef long int fd_mask;
187#endif
188#define ffs mffs
189extern int mffs(fd_mask);
190
191/* in access.c */
192extern Bool ComputeLocalClient(ClientPtr client);
193
194/* in auth.c */
195extern void GenerateRandomData(int len, char *buf);
196
197/* in mitauth.c */
198extern XID MitCheckCookie(AuthCheckArgs);
199extern XID MitGenerateCookie(AuthGenCArgs);
200extern int MitAddCookie(AuthAddCArgs);
201extern int MitFromID(AuthFromIDArgs);
202extern int MitRemoveCookie(AuthRemCArgs);
203extern int MitResetCookie(AuthRstCArgs);
204
205/* in xdmauth.c */
206#ifdef HASXDMAUTH
207extern XID XdmCheckCookie(AuthCheckArgs);
208extern int XdmAddCookie(AuthAddCArgs);
209extern int XdmFromID(AuthFromIDArgs);
210extern int XdmRemoveCookie(AuthRemCArgs);
211extern int XdmResetCookie(AuthRstCArgs);
212#endif
213
214/* in rpcauth.c */
215#ifdef SECURE_RPC
216extern void SecureRPCInit(AuthInitArgs);
217extern XID SecureRPCCheck(AuthCheckArgs);
218extern int SecureRPCAdd(AuthAddCArgs);
219extern int SecureRPCFromID(AuthFromIDArgs);
220extern int SecureRPCRemove(AuthRemCArgs);
221extern int SecureRPCReset(AuthRstCArgs);
222#endif
223
224#ifdef XDMCP
225/* in xdmcp.c */
226extern void XdmcpUseMsg(void);
227extern int XdmcpOptions(int argc, char **argv, int i);
228extern void XdmcpRegisterConnection(int type, const char *address, int addrlen);
229extern void XdmcpRegisterAuthorizations(void);
230extern void XdmcpRegisterAuthorization(const char *name, int namelen);
231extern void XdmcpInit(void);
232extern void XdmcpReset(void);
233extern void XdmcpOpenDisplay(int sock);
234extern void XdmcpCloseDisplay(int sock);
235extern void XdmcpRegisterAuthentication(const char *name,
236                                        int namelen,
237                                        const char *data,
238                                        int datalen,
239                                        ValidatorFunc Validator,
240                                        GeneratorFunc Generator,
241                                        AddAuthorFunc AddAuth);
242
243struct sockaddr_in;
244extern void XdmcpRegisterBroadcastAddress(const struct sockaddr_in *addr);
245#endif
246
247#ifdef HASXDMAUTH
248extern void XdmAuthenticationInit(const char *cookie, int cookie_length);
249#endif
250
251#endif                          /* _OSDEP_H_ */
252