182 lines
6.2 KiB
C
182 lines
6.2 KiB
C
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/*
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* Copyright 1989 Network Computing Devices, Inc., Mountain View, California.
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of N.C.D. not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. N.C.D. makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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*/
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#ifndef _XDMCP_H_
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#define _XDMCP_H_
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#include <X11/Xmd.h>
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#include <X11/Xfuncproto.h>
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_XFUNCPROTOBEGIN
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#define XDM_PROTOCOL_VERSION 1
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#define XDM_UDP_PORT 177
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/* IANA has assigned FF0X:0:0:0:0:0:0:12B as the permanently assigned
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* multicast addresses for XDMCP, where X in the prefix may be replaced
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* by any valid scope identifier, such as 1 for Node-Local, 2 for Link-Local,
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* 5 for Site-Local, and so on. We set the default here to the Link-Local
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* version to most closely match the old IPv4 subnet broadcast behavior.
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* Both xdm and X -query allow specifying a different address if a different
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* scope is defined.
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*/
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#define XDM_DEFAULT_MCAST_ADDR6 "ff02:0:0:0:0:0:0:12b"
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#define XDM_MAX_MSGLEN 8192
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#define XDM_MIN_RTX 2
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#define XDM_MAX_RTX 32
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#define XDM_RTX_LIMIT 7
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#define XDM_KA_RTX_LIMIT 4
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#define XDM_DEF_DORMANCY (3 * 60) /* 3 minutes */
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#define XDM_MAX_DORMANCY (24 * 60 * 60) /* 24 hours */
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typedef enum {
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BROADCAST_QUERY = 1, QUERY, INDIRECT_QUERY, FORWARD_QUERY,
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WILLING, UNWILLING, REQUEST, ACCEPT, DECLINE, MANAGE, REFUSE,
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FAILED, KEEPALIVE, ALIVE
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} xdmOpCode;
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typedef enum {
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XDM_QUERY, XDM_BROADCAST, XDM_INDIRECT, XDM_COLLECT_QUERY,
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XDM_COLLECT_BROADCAST_QUERY, XDM_COLLECT_INDIRECT_QUERY,
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XDM_START_CONNECTION, XDM_AWAIT_REQUEST_RESPONSE,
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XDM_AWAIT_MANAGE_RESPONSE, XDM_MANAGE, XDM_RUN_SESSION, XDM_OFF,
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XDM_AWAIT_USER_INPUT, XDM_KEEPALIVE, XDM_AWAIT_ALIVE_RESPONSE,
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#if defined(IPv6) && defined(AF_INET6)
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XDM_MULTICAST, XDM_COLLECT_MULTICAST_QUERY,
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#endif
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XDM_KEEP_ME_LAST
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} xdmcp_states;
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#ifdef NOTDEF
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/* table of hosts */
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#define XDM_MAX_STR_LEN 21
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#define XDM_MAX_HOSTS 20
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struct xdm_host_table {
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struct sockaddr_in sockaddr;
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char name[XDM_MAX_STR_LEN];
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char status[XDM_MAX_STR_LEN];
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};
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#endif /* NOTDEF */
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typedef CARD8 *CARD8Ptr;
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typedef CARD16 *CARD16Ptr;
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typedef CARD32 *CARD32Ptr;
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typedef struct _ARRAY8 {
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CARD16 length;
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CARD8Ptr data;
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} ARRAY8, *ARRAY8Ptr;
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typedef struct _ARRAY16 {
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CARD8 length;
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CARD16Ptr data;
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} ARRAY16, *ARRAY16Ptr;
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typedef struct _ARRAY32 {
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CARD8 length;
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CARD32Ptr data;
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} ARRAY32, *ARRAY32Ptr;
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typedef struct _ARRAYofARRAY8 {
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CARD8 length;
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ARRAY8Ptr data;
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} ARRAYofARRAY8, *ARRAYofARRAY8Ptr;
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typedef struct _XdmcpHeader {
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CARD16 version, opcode, length;
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} XdmcpHeader, *XdmcpHeaderPtr;
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typedef struct _XdmcpBuffer {
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BYTE *data;
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int size; /* size of buffer pointed by to data */
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int pointer; /* current index into data */
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int count; /* bytes read from network into data */
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} XdmcpBuffer, *XdmcpBufferPtr;
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typedef struct _XdmAuthKey {
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BYTE data[8];
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} XdmAuthKeyRec, *XdmAuthKeyPtr;
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/* implementation-independent network address structure.
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Equiv to sockaddr* for sockets. */
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typedef char *XdmcpNetaddr;
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extern int XdmcpWriteARRAY16(XdmcpBufferPtr buffer, const ARRAY16Ptr array);
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extern int XdmcpWriteARRAY32(XdmcpBufferPtr buffer, const ARRAY32Ptr array);
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extern int XdmcpWriteARRAY8(XdmcpBufferPtr buffer, const ARRAY8Ptr array);
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extern int XdmcpWriteARRAYofARRAY8(XdmcpBufferPtr buffer, const ARRAYofARRAY8Ptr array);
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extern int XdmcpWriteCARD16(XdmcpBufferPtr buffer, unsigned value);
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extern int XdmcpWriteCARD32(XdmcpBufferPtr buffer, unsigned value);
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extern int XdmcpWriteCARD8(XdmcpBufferPtr buffer, unsigned value);
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extern int XdmcpWriteHeader(XdmcpBufferPtr buffer, const XdmcpHeaderPtr header);
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extern int XdmcpFlush(int fd, XdmcpBufferPtr buffer, XdmcpNetaddr to, int tolen);
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extern int XdmcpReadARRAY16(XdmcpBufferPtr buffer, ARRAY16Ptr array);
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extern int XdmcpReadARRAY32(XdmcpBufferPtr buffer, ARRAY32Ptr array);
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extern int XdmcpReadARRAY8(XdmcpBufferPtr buffer, ARRAY8Ptr array);
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extern int XdmcpReadARRAYofARRAY8(XdmcpBufferPtr buffer, ARRAYofARRAY8Ptr array);
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extern int XdmcpReadCARD16(XdmcpBufferPtr buffer, CARD16Ptr valuep);
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extern int XdmcpReadCARD32(XdmcpBufferPtr buffer, CARD32Ptr valuep);
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extern int XdmcpReadCARD8(XdmcpBufferPtr buffer, CARD8Ptr valuep);
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extern int XdmcpReadHeader(XdmcpBufferPtr buffer, XdmcpHeaderPtr header);
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extern int XdmcpFill(int fd, XdmcpBufferPtr buffer, XdmcpNetaddr from, int *fromlen);
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extern int XdmcpReadRemaining(const XdmcpBufferPtr buffer);
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extern void XdmcpDisposeARRAY8(ARRAY8Ptr array);
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extern void XdmcpDisposeARRAY16(ARRAY16Ptr array);
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extern void XdmcpDisposeARRAY32(ARRAY32Ptr array);
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extern void XdmcpDisposeARRAYofARRAY8(ARRAYofARRAY8Ptr array);
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extern int XdmcpCopyARRAY8(const ARRAY8Ptr src, ARRAY8Ptr dst);
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extern int XdmcpARRAY8Equal(const ARRAY8Ptr array1, const ARRAY8Ptr array2);
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extern void XdmcpGenerateKey (XdmAuthKeyPtr key);
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extern void XdmcpIncrementKey (XdmAuthKeyPtr key);
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extern void XdmcpDecrementKey (XdmAuthKeyPtr key);
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#ifdef HASXDMAUTH
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extern void XdmcpWrap(unsigned char *input, unsigned char *wrapper, unsigned char *output, int bytes);
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extern void XdmcpUnwrap(unsigned char *input, unsigned char *wrapper, unsigned char *output, int bytes);
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#endif
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#ifndef TRUE
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#define TRUE 1
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#define FALSE 0
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#endif
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extern int XdmcpCompareKeys (const XdmAuthKeyPtr a, const XdmAuthKeyPtr b);
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extern int XdmcpAllocARRAY16 (ARRAY16Ptr array, int length);
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extern int XdmcpAllocARRAY32 (ARRAY32Ptr array, int length);
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extern int XdmcpAllocARRAY8 (ARRAY8Ptr array, int length);
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extern int XdmcpAllocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length);
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extern int XdmcpReallocARRAY16 (ARRAY16Ptr array, int length);
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extern int XdmcpReallocARRAY32 (ARRAY32Ptr array, int length);
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extern int XdmcpReallocARRAY8 (ARRAY8Ptr array, int length);
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extern int XdmcpReallocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length);
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_XFUNCPROTOEND
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#endif /* _XDMCP_H_ */
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