1 /* 2 * Copyright 1989 Network Computing Devices, Inc., Mountain View, California. 3 * 4 * Permission to use, copy, modify, and distribute this software and its 5 * documentation for any purpose and without fee is hereby granted, provided 6 * that the above copyright notice appear in all copies and that both that 7 * copyright notice and this permission notice appear in supporting 8 * documentation, and that the name of N.C.D. not be used in advertising or 9 * publicity pertaining to distribution of the software without specific, 10 * written prior permission. N.C.D. makes no representations about the 11 * suitability of this software for any purpose. It is provided "as is" 12 * without express or implied warranty. 13 * 14 */ 15 16 #ifndef _XDMCP_H_ 17 #define _XDMCP_H_ 18 19 #include <X11/Xmd.h> 20 21 #include <X11/Xfuncproto.h> 22 23 _XFUNCPROTOBEGIN 24 25 #define XDM_PROTOCOL_VERSION 1 26 #define XDM_UDP_PORT 177 27 28 /* IANA has assigned FF0X:0:0:0:0:0:0:12B as the permanently assigned 29 * multicast addresses for XDMCP, where X in the prefix may be replaced 30 * by any valid scope identifier, such as 1 for Node-Local, 2 for Link-Local, 31 * 5 for Site-Local, and so on. We set the default here to the Link-Local 32 * version to most closely match the old IPv4 subnet broadcast behavior. 33 * Both xdm and X -query allow specifying a different address if a different 34 * scope is defined. 35 */ 36 #define XDM_DEFAULT_MCAST_ADDR6 "ff02:0:0:0:0:0:0:12b" 37 38 #define XDM_MAX_MSGLEN 8192 39 #define XDM_MIN_RTX 2 40 #define XDM_MAX_RTX 32 41 #define XDM_RTX_LIMIT 7 42 #define XDM_KA_RTX_LIMIT 4 43 #define XDM_DEF_DORMANCY (3 * 60) /* 3 minutes */ 44 #define XDM_MAX_DORMANCY (24 * 60 * 60) /* 24 hours */ 45 46 typedef enum { 47 BROADCAST_QUERY = 1, QUERY, INDIRECT_QUERY, FORWARD_QUERY, 48 WILLING, UNWILLING, REQUEST, ACCEPT, DECLINE, MANAGE, REFUSE, 49 FAILED, KEEPALIVE, ALIVE 50 } xdmOpCode; 51 52 typedef enum { 53 XDM_QUERY, XDM_BROADCAST, XDM_INDIRECT, XDM_COLLECT_QUERY, 54 XDM_COLLECT_BROADCAST_QUERY, XDM_COLLECT_INDIRECT_QUERY, 55 XDM_START_CONNECTION, XDM_AWAIT_REQUEST_RESPONSE, 56 XDM_AWAIT_MANAGE_RESPONSE, XDM_MANAGE, XDM_RUN_SESSION, XDM_OFF, 57 XDM_AWAIT_USER_INPUT, XDM_KEEPALIVE, XDM_AWAIT_ALIVE_RESPONSE, 58 #if defined(IPv6) && defined(AF_INET6) 59 XDM_MULTICAST, XDM_COLLECT_MULTICAST_QUERY, 60 #endif 61 XDM_KEEP_ME_LAST 62 } xdmcp_states; 63 64 #ifdef NOTDEF 65 /* table of hosts */ 66 67 #define XDM_MAX_STR_LEN 21 68 #define XDM_MAX_HOSTS 20 69 struct xdm_host_table { 70 struct sockaddr_in sockaddr; 71 char name[XDM_MAX_STR_LEN]; 72 char status[XDM_MAX_STR_LEN]; 73 }; 74 #endif /* NOTDEF */ 75 76 typedef CARD8 *CARD8Ptr; 77 typedef CARD16 *CARD16Ptr; 78 typedef CARD32 *CARD32Ptr; 79 80 typedef struct _ARRAY8 { 81 CARD16 length; 82 CARD8Ptr data; 83 } ARRAY8, *ARRAY8Ptr; 84 85 typedef struct _ARRAY16 { 86 CARD8 length; 87 CARD16Ptr data; 88 } ARRAY16, *ARRAY16Ptr; 89 90 typedef struct _ARRAY32 { 91 CARD8 length; 92 CARD32Ptr data; 93 } ARRAY32, *ARRAY32Ptr; 94 95 typedef struct _ARRAYofARRAY8 { 96 CARD8 length; 97 ARRAY8Ptr data; 98 } ARRAYofARRAY8, *ARRAYofARRAY8Ptr; 99 100 typedef struct _XdmcpHeader { 101 CARD16 version, opcode, length; 102 } XdmcpHeader, *XdmcpHeaderPtr; 103 104 typedef struct _XdmcpBuffer { 105 BYTE *data; 106 int size; /* size of buffer pointed by to data */ 107 int pointer; /* current index into data */ 108 int count; /* bytes read from network into data */ 109 } XdmcpBuffer, *XdmcpBufferPtr; 110 111 typedef struct _XdmAuthKey { 112 BYTE data[8]; 113 } XdmAuthKeyRec, *XdmAuthKeyPtr; 114 115 116 /* implementation-independent network address structure. 117 Equiv to sockaddr* for sockets. */ 118 119 typedef char *XdmcpNetaddr; 120 121 #ifndef __has_attribute 122 # define __has_attribute(x) 0 /* Compatibility with older compilers */ 123 #endif 124 125 #if __has_attribute(access) 126 # define XDM_ACCESS_ATTRIBUTE(X) __attribute__((access X)) 127 #else 128 # define XDM_ACCESS_ATTRIBUTE(X) 129 #endif 130 131 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 132 extern int XdmcpWriteARRAY16(XdmcpBufferPtr buffer, const ARRAY16Ptr array); 133 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 134 extern int XdmcpWriteARRAY32(XdmcpBufferPtr buffer, const ARRAY32Ptr array); 135 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 136 extern int XdmcpWriteARRAY8(XdmcpBufferPtr buffer, const ARRAY8Ptr array); 137 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 138 extern int XdmcpWriteARRAYofARRAY8(XdmcpBufferPtr buffer, const ARRAYofARRAY8Ptr array); 139 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 140 extern int XdmcpWriteCARD16(XdmcpBufferPtr buffer, unsigned value); 141 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 142 extern int XdmcpWriteCARD32(XdmcpBufferPtr buffer, unsigned value); 143 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 144 extern int XdmcpWriteCARD8(XdmcpBufferPtr buffer, unsigned value); 145 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 146 extern int XdmcpWriteHeader(XdmcpBufferPtr buffer, const XdmcpHeaderPtr header); 147 148 XDM_ACCESS_ATTRIBUTE((read_only, 2)) 149 extern int XdmcpFlush(int fd, XdmcpBufferPtr buffer, XdmcpNetaddr to, int tolen); 150 151 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 152 extern int XdmcpReadARRAY16(XdmcpBufferPtr buffer, ARRAY16Ptr array); 153 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 154 extern int XdmcpReadARRAY32(XdmcpBufferPtr buffer, ARRAY32Ptr array); 155 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 156 extern int XdmcpReadARRAY8(XdmcpBufferPtr buffer, ARRAY8Ptr array); 157 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 158 extern int XdmcpReadARRAYofARRAY8(XdmcpBufferPtr buffer, ARRAYofARRAY8Ptr array); 159 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 160 extern int XdmcpReadCARD16(XdmcpBufferPtr buffer, CARD16Ptr valuep); 161 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 162 extern int XdmcpReadCARD32(XdmcpBufferPtr buffer, CARD32Ptr valuep); 163 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 164 extern int XdmcpReadCARD8(XdmcpBufferPtr buffer, CARD8Ptr valuep); 165 XDM_ACCESS_ATTRIBUTE((read_write, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 166 extern int XdmcpReadHeader(XdmcpBufferPtr buffer, XdmcpHeaderPtr header); 167 168 XDM_ACCESS_ATTRIBUTE((read_write, 2)) 169 extern int XdmcpFill(int fd, XdmcpBufferPtr buffer, XdmcpNetaddr from, int *fromlen); 170 171 XDM_ACCESS_ATTRIBUTE((read_only, 1)) 172 extern int XdmcpReadRemaining(const XdmcpBufferPtr buffer); 173 174 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 175 extern void XdmcpDisposeARRAY8(ARRAY8Ptr array); 176 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 177 extern void XdmcpDisposeARRAY16(ARRAY16Ptr array); 178 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 179 extern void XdmcpDisposeARRAY32(ARRAY32Ptr array); 180 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 181 extern void XdmcpDisposeARRAYofARRAY8(ARRAYofARRAY8Ptr array); 182 183 XDM_ACCESS_ATTRIBUTE((read_only, 1)) XDM_ACCESS_ATTRIBUTE((write_only, 2)) 184 extern int XdmcpCopyARRAY8(const ARRAY8Ptr src, ARRAY8Ptr dst); 185 186 XDM_ACCESS_ATTRIBUTE((read_only, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 187 extern int XdmcpARRAY8Equal(const ARRAY8Ptr array1, const ARRAY8Ptr array2); 188 189 XDM_ACCESS_ATTRIBUTE((write_only, 1)) 190 extern void XdmcpGenerateKey (XdmAuthKeyPtr key); 191 extern void XdmcpIncrementKey (XdmAuthKeyPtr key); 192 extern void XdmcpDecrementKey (XdmAuthKeyPtr key); 193 #ifdef HASXDMAUTH 194 extern void XdmcpWrap(unsigned char *input, unsigned char *wrapper, unsigned char *output, int bytes); 195 extern void XdmcpUnwrap(unsigned char *input, unsigned char *wrapper, unsigned char *output, int bytes); 196 #endif 197 198 #ifndef TRUE 199 #define TRUE 1 200 #define FALSE 0 201 #endif 202 203 XDM_ACCESS_ATTRIBUTE((read_only, 1)) XDM_ACCESS_ATTRIBUTE((read_only, 2)) 204 extern int XdmcpCompareKeys (const XdmAuthKeyPtr a, const XdmAuthKeyPtr b); 205 206 XDM_ACCESS_ATTRIBUTE((write_only, 1)) 207 extern int XdmcpAllocARRAY16 (ARRAY16Ptr array, int length); 208 XDM_ACCESS_ATTRIBUTE((write_only, 1)) 209 extern int XdmcpAllocARRAY32 (ARRAY32Ptr array, int length); 210 XDM_ACCESS_ATTRIBUTE((write_only, 1)) 211 extern int XdmcpAllocARRAY8 (ARRAY8Ptr array, int length); 212 XDM_ACCESS_ATTRIBUTE((write_only, 1)) 213 extern int XdmcpAllocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length); 214 215 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 216 extern int XdmcpReallocARRAY16 (ARRAY16Ptr array, int length); 217 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 218 extern int XdmcpReallocARRAY32 (ARRAY32Ptr array, int length); 219 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 220 extern int XdmcpReallocARRAY8 (ARRAY8Ptr array, int length); 221 XDM_ACCESS_ATTRIBUTE((read_write, 1)) 222 extern int XdmcpReallocARRAYofARRAY8 (ARRAYofARRAY8Ptr array, int length); 223 224 _XFUNCPROTOEND 225 226 #endif /* _XDMCP_H_ */ 227
Indexes created Fri Jul 03 00:25:33 UTC 2026