osdep.h revision 4642e01f 
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
25
26Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28                        All Rights Reserved
29
30Permission to use, copy, modify, and distribute this software and its
31documentation for any purpose and without fee is hereby granted,
32provided that the above copyright notice appear in all copies and that
33both that copyright notice and this permission notice appear in
34supporting documentation, and that the name of Digital not be
35used in advertising or publicity pertaining to distribution of the
36software without specific, written prior permission.
37
38DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44SOFTWARE.
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#ifdef _POSIX_SOURCE
62#include <limits.h>
63#else
64#define _POSIX_SOURCE
65#include <limits.h>
66#undef _POSIX_SOURCE
67#endif
68
69#ifndef OPEN_MAX
70#ifdef SVR4
71#define OPEN_MAX 256
72#else
73#include <sys/param.h>
74#ifndef OPEN_MAX
75#if defined(NOFILE) && !defined(NOFILES_MAX)
76#define OPEN_MAX NOFILE
77#else
78#if !defined(WIN32)
79#define OPEN_MAX NOFILES_MAX
80#else
81#define OPEN_MAX 256
82#endif
83#endif
84#endif
85#endif
86#endif
87
88#include <X11/Xpoll.h>
89
90/*
91 * MAXSOCKS is used only for initialising MaxClients when no other method
92 * like sysconf(_SC_OPEN_MAX) is not supported.
93 */
94
95#if OPEN_MAX <= 256
96#define MAXSOCKS (OPEN_MAX - 1)
97#else
98#define MAXSOCKS 256
99#endif
100
101/* MAXSELECT is the number of fds that select() can handle */
102#define MAXSELECT (sizeof(fd_set) * NBBY)
103
104#ifndef HAS_GETDTABLESIZE
105#if !defined(SVR4) && !defined(SYSV)
106#define HAS_GETDTABLESIZE
107#endif
108#endif
109
110#include <stddef.h>
111
112typedef Bool (*ValidatorFunc)(ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
113typedef Bool (*GeneratorFunc)(ARRAY8Ptr Auth, ARRAY8Ptr Data, int packet_type);
114typedef Bool (*AddAuthorFunc)(unsigned name_length, char *name, unsigned data_length, char *data);
115
116typedef struct _connectionInput {
117    struct _connectionInput *next;
118    char *buffer;               /* contains current client input */
119    char *bufptr;               /* pointer to current start of data */
120    int  bufcnt;                /* count of bytes in buffer */
121    int lenLastReq;
122    int size;
123} ConnectionInput, *ConnectionInputPtr;
124
125typedef struct _connectionOutput {
126    struct _connectionOutput *next;
127    int size;
128    unsigned char *buf;
129    int count;
130} ConnectionOutput, *ConnectionOutputPtr;
131
132struct _osComm;
133
134#define AuthInitArgs void
135typedef void (*AuthInitFunc) (AuthInitArgs);
136
137#define AuthAddCArgs unsigned short data_length, char *data, XID id
138typedef int (*AuthAddCFunc) (AuthAddCArgs);
139
140#define AuthCheckArgs unsigned short data_length, char *data, ClientPtr client, char **reason
141typedef XID (*AuthCheckFunc) (AuthCheckArgs);
142
143#define AuthFromIDArgs XID id, unsigned short *data_lenp, char **datap
144typedef int (*AuthFromIDFunc) (AuthFromIDArgs);
145
146#define AuthGenCArgs unsigned data_length, char *data, XID id, unsigned *data_length_return, char **data_return
147typedef XID (*AuthGenCFunc) (AuthGenCArgs);
148
149#define AuthRemCArgs unsigned short data_length, char *data
150typedef int (*AuthRemCFunc) (AuthRemCArgs);
151
152#define AuthRstCArgs void
153typedef int (*AuthRstCFunc) (AuthRstCArgs);
154
155#define AuthToIDArgs unsigned short data_length, char *data
156typedef XID (*AuthToIDFunc) (AuthToIDArgs);
157
158typedef void (*OsCloseFunc)(ClientPtr);
159
160typedef int (*OsFlushFunc)(ClientPtr who, struct _osComm * oc, char* extraBuf, int extraCount);
161
162typedef struct _osComm {
163    int fd;
164    ConnectionInputPtr input;
165    ConnectionOutputPtr output;
166    XID	auth_id;		/* authorization id */
167    CARD32 conn_time;		/* timestamp if not established, else 0  */
168    struct _XtransConnInfo *trans_conn; /* transport connection object */
169} OsCommRec, *OsCommPtr;
170
171extern int FlushClient(
172    ClientPtr /*who*/,
173    OsCommPtr /*oc*/,
174    const void * /*extraBuf*/,
175    int /*extraCount*/
176);
177
178extern void FreeOsBuffers(
179    OsCommPtr /*oc*/
180);
181
182#include "dix.h"
183
184extern fd_set AllSockets;
185extern fd_set AllClients;
186extern fd_set LastSelectMask;
187extern fd_set WellKnownConnections;
188extern fd_set EnabledDevices;
189extern fd_set ClientsWithInput;
190extern fd_set ClientsWriteBlocked;
191extern fd_set OutputPending;
192extern fd_set IgnoredClientsWithInput;
193
194#ifndef WIN32
195extern int *ConnectionTranslation;
196#else
197extern int GetConnectionTranslation(int conn);
198extern void SetConnectionTranslation(int conn, int client);
199extern void ClearConnectionTranslation();
200#endif
201
202extern Bool NewOutputPending;
203extern Bool AnyClientsWriteBlocked;
204
205extern WorkQueuePtr workQueue;
206
207/* added by raphael */
208#ifdef WIN32
209typedef long int fd_mask;
210#endif
211#define ffs mffs
212extern int mffs(fd_mask);
213
214/* in auth.c */
215extern void GenerateRandomData (int len, char *buf);
216
217/* in mitauth.c */
218extern XID  MitCheckCookie    (AuthCheckArgs);
219extern XID  MitGenerateCookie (AuthGenCArgs);
220extern XID  MitToID           (AuthToIDArgs);
221extern int  MitAddCookie      (AuthAddCArgs);
222extern int  MitFromID         (AuthFromIDArgs);
223extern int  MitRemoveCookie   (AuthRemCArgs);
224extern int  MitResetCookie    (AuthRstCArgs);
225
226/* in xdmauth.c */
227#ifdef HASXDMAUTH
228extern XID  XdmCheckCookie    (AuthCheckArgs);
229extern XID  XdmToID           (AuthToIDArgs);
230extern int  XdmAddCookie      (AuthAddCArgs);
231extern int  XdmFromID         (AuthFromIDArgs);
232extern int  XdmRemoveCookie   (AuthRemCArgs);
233extern int  XdmResetCookie    (AuthRstCArgs);
234#endif
235
236/* in rpcauth.c */
237#ifdef SECURE_RPC
238extern void SecureRPCInit     (AuthInitArgs);
239extern XID  SecureRPCCheck    (AuthCheckArgs);
240extern XID  SecureRPCToID     (AuthToIDArgs);
241extern int  SecureRPCAdd      (AuthAddCArgs);
242extern int  SecureRPCFromID   (AuthFromIDArgs);
243extern int  SecureRPCRemove   (AuthRemCArgs);
244extern int  SecureRPCReset    (AuthRstCArgs);
245#endif
246
247/* in xdmcp.c */
248extern void XdmcpUseMsg (void);
249extern int XdmcpOptions(int argc, char **argv, int i);
250extern void XdmcpRegisterConnection (
251    int	    type,
252    char    *address,
253    int	    addrlen);
254extern void XdmcpRegisterAuthorizations (void);
255extern void XdmcpRegisterAuthorization (char *name, int namelen);
256extern void XdmcpInit (void);
257extern void XdmcpReset (void);
258extern void XdmcpOpenDisplay(int sock);
259extern void XdmcpCloseDisplay(int sock);
260extern void XdmcpRegisterAuthentication (
261    char    *name,
262    int	    namelen,
263    char    *data,
264    int	    datalen,
265    ValidatorFunc Validator,
266    GeneratorFunc Generator,
267    AddAuthorFunc AddAuth);
268
269struct sockaddr_in;
270extern void XdmcpRegisterBroadcastAddress (struct sockaddr_in *addr);
271
272#ifdef HASXDMAUTH
273extern void XdmAuthenticationInit (char *cookie, int cookie_length);
274#endif
275
276#endif /* _OSDEP_H_ */
277