| 1 | /* $XdotOrg: xc/lib/Xdmcp/Xdmcp.h,v 1.2 2004/04/23 18:43:41 eich Exp $ */
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| 2 | /* $Xorg: Xdmcp.h,v 1.7 2001/04/13 14:43:00 steve Exp $ */
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| 3 | /*
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| 4 | * Copyright 1989 Network Computing Devices, Inc., Mountain View, California.
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| 5 | *
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| 6 | * Permission to use, copy, modify, and distribute this software and its
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| 7 | * documentation for any purpose and without fee is hereby granted, provided
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| 8 | * that the above copyright notice appear in all copies and that both that
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| 9 | * copyright notice and this permission notice appear in supporting
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| 10 | * documentation, and that the name of N.C.D. not be used in advertising or
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| 11 | * publicity pertaining to distribution of the software without specific,
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| 12 | * written prior permission. N.C.D. makes no representations about the
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| 13 | * suitability of this software for any purpose. It is provided "as is"
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| 14 | * without express or implied warranty.
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| 15 | *
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| 16 | */
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| 17 | /* $XFree86: xc/lib/Xdmcp/Xdmcp.h,v 3.7 2003/07/09 15:27:29 tsi Exp $ */
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| 18 |
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| 19 | #ifndef _XDMCP_H_
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| 20 | #define _XDMCP_H_
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| 21 |
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| 22 | #include <X11/Xmd.h>
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| 23 |
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| 24 | #include <X11/Xfuncproto.h>
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| 25 |
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| 26 | _XFUNCPROTOBEGIN
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| 27 |
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| 28 | #define XDM_PROTOCOL_VERSION 1
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| 29 | #define XDM_UDP_PORT 177
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| 30 |
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| 31 | /* IANA has assigned FF0X:0:0:0:0:0:0:12B as the permanently assigned
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| 32 | * multicast addresses for XDMCP, where X in the prefix may be replaced
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| 33 | * by any valid scope identifier, such as 1 for Node-Local, 2 for Link-Local,
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| 34 | * 5 for Site-Local, and so on. We set the default here to the Link-Local
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| 35 | * version to most closely match the old IPv4 subnet broadcast behavior.
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| 36 | * Both xdm and X -query allow specifying a different address if a different
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| 37 | * scope is defined.
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| 38 | */
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| 39 | #define XDM_DEFAULT_MCAST_ADDR6 "ff02:0:0:0:0:0:0:12b"
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| 40 |
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| 41 | #define XDM_MAX_MSGLEN 8192
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| 42 | #define XDM_MIN_RTX 2
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| 43 | #define XDM_MAX_RTX 32
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| 44 | #define XDM_RTX_LIMIT 7
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| 45 | #define XDM_KA_RTX_LIMIT 4
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| 46 | #define XDM_DEF_DORMANCY (3 * 60) /* 3 minutes */
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| 47 | #define XDM_MAX_DORMANCY (24 * 60 * 60) /* 24 hours */
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| 48 |
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| 49 | typedef enum {
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| 50 | BROADCAST_QUERY = 1, QUERY, INDIRECT_QUERY, FORWARD_QUERY,
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| 51 | WILLING, UNWILLING, REQUEST, ACCEPT, DECLINE, MANAGE, REFUSE,
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| 52 | FAILED, KEEPALIVE, ALIVE
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| 53 | } xdmOpCode;
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| 54 |
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| 55 | typedef enum {
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| 56 | XDM_QUERY, XDM_BROADCAST, XDM_INDIRECT, XDM_COLLECT_QUERY,
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| 57 | XDM_COLLECT_BROADCAST_QUERY, XDM_COLLECT_INDIRECT_QUERY,
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| 58 | XDM_START_CONNECTION, XDM_AWAIT_REQUEST_RESPONSE,
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| 59 | XDM_AWAIT_MANAGE_RESPONSE, XDM_MANAGE, XDM_RUN_SESSION, XDM_OFF,
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| 60 | XDM_AWAIT_USER_INPUT, XDM_KEEPALIVE, XDM_AWAIT_ALIVE_RESPONSE,
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| 61 | #if defined(IPv6) && defined(AF_INET6)
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| 62 | XDM_MULTICAST, XDM_COLLECT_MULTICAST_QUERY,
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| 63 | #endif
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| 64 | XDM_KEEP_ME_LAST
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| 65 | } xdmcp_states;
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| 66 |
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| 67 | #ifdef NOTDEF
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| 68 | /* table of hosts */
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| 69 |
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| 70 | #define XDM_MAX_STR_LEN 21
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| 71 | #define XDM_MAX_HOSTS 20
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| 72 | struct xdm_host_table {
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| 73 | struct sockaddr_in sockaddr;
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| 74 | char name[XDM_MAX_STR_LEN];
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| 75 | char status[XDM_MAX_STR_LEN];
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| 76 | };
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| 77 | #endif /* NOTDEF */
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| 78 |
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| 79 | typedef CARD8 *CARD8Ptr;
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| 80 | typedef CARD16 *CARD16Ptr;
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| 81 | typedef CARD32 *CARD32Ptr;
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| 82 |
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| 83 | typedef struct _ARRAY8 {
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| 84 | CARD16 length;
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| 85 | CARD8Ptr data;
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| 86 | } ARRAY8, *ARRAY8Ptr;
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| 87 |
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| 88 | typedef struct _ARRAY16 {
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| 89 | CARD8 length;
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| 90 | CARD16Ptr data;
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| 91 | } ARRAY16, *ARRAY16Ptr;
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| 92 |
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| 93 | typedef struct _ARRAY32 {
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| 94 | CARD8 length;
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| 95 | CARD32Ptr data;
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| 96 | } ARRAY32, *ARRAY32Ptr;
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| 97 |
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| 98 | typedef struct _ARRAYofARRAY8 {
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| 99 | CARD8 length;
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| 100 | ARRAY8Ptr data;
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| 101 | } ARRAYofARRAY8, *ARRAYofARRAY8Ptr;
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| 102 |
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| 103 | typedef struct _XdmcpHeader {
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| 104 | CARD16 version, opcode, length;
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| 105 | } XdmcpHeader, *XdmcpHeaderPtr;
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| 106 |
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| 107 | typedef struct _XdmcpBuffer {
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| 108 | BYTE *data;
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| 109 | int size; /* size of buffer pointed by to data */
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| 110 | int pointer; /* current index into data */
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| 111 | int count; /* bytes read from network into data */
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| 112 | } XdmcpBuffer, *XdmcpBufferPtr;
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| 113 |
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| 114 | typedef struct _XdmAuthKey {
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| 115 | BYTE data[8];
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| 116 | } XdmAuthKeyRec, *XdmAuthKeyPtr;
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| 117 |
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| 118 |
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| 119 | /* implementation-independent network address structure.
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| 120 | Equiv to sockaddr* for sockets and netbuf* for STREAMS. */
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| 121 |
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| 122 | typedef char *XdmcpNetaddr;
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| 123 |
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| 124 | extern int XdmcpWriteARRAY16(XdmcpBufferPtr buffer, ARRAY16Ptr array);
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| 125 | extern int XdmcpWriteARRAY32(XdmcpBufferPtr buffer, ARRAY32Ptr array);
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| 126 | extern int XdmcpWriteARRAY8(XdmcpBufferPtr buffer, ARRAY8Ptr array);
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| 127 | extern int XdmcpWriteARRAYofARRAY8(XdmcpBufferPtr buffer, ARRAYofARRAY8Ptr array);
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| 128 | extern int XdmcpWriteCARD16(XdmcpBufferPtr buffer, unsigned value);
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| 129 | extern int XdmcpWriteCARD32(XdmcpBufferPtr buffer, unsigned value);
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| 130 | extern int XdmcpWriteCARD8(XdmcpBufferPtr buffer, unsigned value);
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| 131 | extern int XdmcpWriteHeader(XdmcpBufferPtr buffer, XdmcpHeaderPtr header);
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| 132 |
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| 133 | extern int XdmcpFlush(int fd, XdmcpBufferPtr buffer, XdmcpNetaddr to, int tolen);
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| 134 |
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| 135 | extern int XdmcpReadARRAY16(XdmcpBufferPtr buffer, ARRAY16Ptr array);
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| 136 | extern int XdmcpReadARRAY32(XdmcpBufferPtr buffer, ARRAY32Ptr array);
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| 137 | extern int XdmcpReadARRAY8(XdmcpBufferPtr buffer, ARRAY8Ptr array);
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| 138 | extern int XdmcpReadARRAYofARRAY8(XdmcpBufferPtr buffer, ARRAYofARRAY8Ptr array);
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| 139 | extern int XdmcpReadCARD16(XdmcpBufferPtr buffer, CARD16Ptr valuep);
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| 140 | extern int XdmcpReadCARD32(XdmcpBufferPtr buffer, CARD32Ptr valuep);
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| 141 | extern int XdmcpReadCARD8(XdmcpBufferPtr buffer, CARD8Ptr valuep);
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| 142 | extern int XdmcpReadHeader(XdmcpBufferPtr buffer, XdmcpHeaderPtr header);
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| 143 |
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| 144 | extern int XdmcpFill(int fd, XdmcpBufferPtr buffer, XdmcpNetaddr from, int *fromlen);
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| 145 |
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| 146 | extern int XdmcpReadRemaining(XdmcpBufferPtr buffer);
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| 147 |
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| 148 | extern void XdmcpDisposeARRAY8(ARRAY8Ptr array);
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| 149 | extern void XdmcpDisposeARRAY16(ARRAY16Ptr array);
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| 150 | extern void XdmcpDisposeARRAY32(ARRAY32Ptr array);
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| 151 | extern void XdmcpDisposeARRAYofARRAY8(ARRAYofARRAY8Ptr array);
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| 152 |
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| 153 | extern int XdmcpCopyARRAY8(ARRAY8Ptr src, ARRAY8Ptr dst);
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| 154 |
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| 155 | extern int XdmcpARRAY8Equal(ARRAY8Ptr array1, ARRAY8Ptr array2);
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| 156 |
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| 157 | extern void XdmcpGenerateKey (XdmAuthKeyPtr key);
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| 158 | extern void XdmcpIncrementKey (XdmAuthKeyPtr key);
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| 159 | extern void XdmcpDecrementKey (XdmAuthKeyPtr key);
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| 160 | #ifdef HASXDMAUTH
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| 161 | extern void XdmcpWrap(unsigned char *input, unsigned char *wrapper, unsigned char *output, int bytes);
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| 162 | extern void XdmcpUnwrap(unsigned char *input, unsigned char *wrapper, unsigned char *output, int bytes);
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| 163 | #endif
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| 164 |
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| 165 | #ifndef TRUE
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| 166 | #define TRUE 1
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| 167 | #define FALSE 0
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| 168 | #endif
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| 169 |
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| 170 | #if !defined(Xalloc) && !defined(xalloc) && !defined(Xrealloc)
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| 171 | extern void *Xalloc (unsigned long amount);
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| 172 | extern void *Xrealloc (void *old, unsigned long amount);
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| 173 | extern void Xfree(void *old);
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| 174 | #endif
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| 175 |
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| 176 | extern int XdmcpCompareKeys (XdmAuthKeyPtr a, XdmAuthKeyPtr b);
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| 177 |
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| 178 | extern int XdmcpAllocARRAY16 (ARRAY16Ptr array, int length);
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| 179 | extern int XdmcpAllocARRAY32 (ARRAY32Ptr array, int length);
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| 180 | extern int XdmcpAllocARRAY8 (ARRAY8Ptr array, int length);
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| 181 | extern int XdmcpAllocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length);
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| 182 |
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| 183 | extern int XdmcpReallocARRAY16 (ARRAY16Ptr array, int length);
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| 184 | extern int XdmcpReallocARRAY32 (ARRAY32Ptr array, int length);
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| 185 | extern int XdmcpReallocARRAY8 (ARRAY8Ptr array, int length);
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| 186 | extern int XdmcpReallocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length);
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| 187 |
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| 188 | _XFUNCPROTOEND
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| 189 |
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| 190 | #endif /* _XDMCP_H_ */
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