| 1 | /* |
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| 2 | * xdm - display manager daemon |
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| 3 | * |
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| 4 | * $XConsortium: dm.h,v 1.51 91/09/19 16:28:35 keith Exp $ |
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| 5 | * |
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| 6 | * Copyright 1988 Massachusetts Institute of Technology |
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| 7 | * |
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| 8 | * Permission to use, copy, modify, and distribute this software and its |
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| 9 | * documentation for any purpose and without fee is hereby granted, provided |
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| 10 | * that the above copyright notice appear in all copies and that both that |
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| 11 | * copyright notice and this permission notice appear in supporting |
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| 12 | * documentation, and that the name of M.I.T. not be used in advertising or |
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| 13 | * publicity pertaining to distribution of the software without specific, |
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| 14 | * written prior permission. M.I.T. makes no representations about the |
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| 15 | * suitability of this software for any purpose. It is provided "as is" |
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| 16 | * without express or implied warranty. |
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| 17 | * |
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| 18 | * Author: Keith Packard, MIT X Consortium |
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| 19 | */ |
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| 20 | |
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| 21 | /* |
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| 22 | * dm.h |
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| 23 | * |
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| 24 | * public interfaces for greet/verify functionality |
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| 25 | */ |
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| 26 | |
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| 27 | # include <X11/Xos.h> |
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| 28 | /* # include <X11/Xfuncs.h> */ |
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| 29 | # include <X11/Xmd.h> |
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| 30 | # include <X11/Xauth.h> |
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| 31 | |
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| 32 | #if !defined(X_NOT_POSIX) && !defined(_POSIX_SOURCE) |
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| 33 | #define _POSIX_SOURCE |
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| 34 | # include <setjmp.h> |
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| 35 | #undef _POSIX_SOURCE |
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| 36 | #else |
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| 37 | # include <setjmp.h> |
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| 38 | #endif |
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| 39 | |
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| 40 | /* If XDMCP symbol defined, compile to run XDMCP protocol */ |
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| 41 | |
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| 42 | #define XDMCP |
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| 43 | |
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| 44 | #ifdef XDMCP |
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| 45 | # include <X11/Xdmcp.h> |
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| 46 | typedef char *XdmcpNetaddr; |
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| 47 | #endif |
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| 48 | |
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| 49 | #ifndef X_NOT_POSIX |
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| 50 | #ifdef _POSIX_SOURCE |
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| 51 | # include <limits.h> |
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| 52 | #else |
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| 53 | #define _POSIX_SOURCE |
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| 54 | # include <limits.h> |
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| 55 | #undef _POSIX_SOURCE |
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| 56 | #endif |
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| 57 | #endif |
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| 58 | #ifndef NGROUPS_MAX |
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| 59 | # include <sys/param.h> |
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| 60 | #ifdef NGROUPS |
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| 61 | #define NGROUPS_MAX NGROUPS |
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| 62 | #endif |
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| 63 | #endif |
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| 64 | |
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| 65 | #ifdef pegasus |
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| 66 | #undef dirty /* Some bozo put a macro called dirty in sys/param.h */ |
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| 67 | #endif /* pegasus */ |
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| 68 | |
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| 69 | #ifndef X_NOT_POSIX |
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| 70 | #ifdef _POSIX_SOURCE |
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| 71 | #include <sys/wait.h> |
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| 72 | #else |
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| 73 | #define _POSIX_SOURCE |
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| 74 | #include <sys/wait.h> |
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| 75 | #undef _POSIX_SOURCE |
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| 76 | #endif |
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| 77 | # define waitCode(w) (WIFEXITED(w) ? WEXITSTATUS(w) : 0) |
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| 78 | # define waitSig(w) (WIFSIGNALED(w) ? WTERMSIG(w) : 0) |
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| 79 | # define waitCore(w) 0 /* not in POSIX. so what? */ |
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| 80 | typedef int waitType; |
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| 81 | #else /* X_NOT_POSIX */ |
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| 82 | #ifdef SYSV |
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| 83 | # define waitCode(w) (((w) >> 8) & 0x7f) |
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| 84 | # define waitSig(w) ((w) & 0xff) |
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| 85 | # define waitCore(w) (((w) >> 15) & 0x01) |
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| 86 | typedef int waitType; |
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| 87 | #else /* SYSV */ |
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| 88 | # include <sys/wait.h> |
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| 89 | # define waitCode(w) ((w).w_T.w_Retcode) |
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| 90 | # define waitSig(w) ((w).w_T.w_Termsig) |
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| 91 | # define waitCore(w) ((w).w_T.w_Coredump) |
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| 92 | typedef union wait waitType; |
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| 93 | #endif |
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| 94 | #endif /* X_NOT_POSIX */ |
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| 95 | |
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| 96 | # define waitCompose(sig,core,code) ((sig) * 256 + (core) * 128 + (code)) |
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| 97 | # define waitVal(w) waitCompose(waitSig(w), waitCore(w), waitCode(w)) |
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| 98 | |
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| 99 | typedef enum displayStatus { running, notRunning, zombie, phoenix } DisplayStatus; |
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| 100 | |
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| 101 | #ifndef FD_ZERO |
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| 102 | typedef struct my_fd_set { int fds_bits[1]; } my_fd_set; |
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| 103 | # define FD_ZERO(fdp) bzero ((fdp), sizeof (*(fdp))) |
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| 104 | # define FD_SET(f,fdp) ((fdp)->fds_bits[(f) / (sizeof (int) * 8)] |= (1 << ((f) % (sizeof (int) * 8)))) |
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| 105 | # define FD_CLR(f,fdp) ((fdp)->fds_bits[(f) / (sizeof (int) * 8)] &= ~(1 << ((f) % (sizeof (int) * 8)))) |
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| 106 | # define FD_ISSET(f,fdp) ((fdp)->fds_bits[(f) / (sizeof (int) * 8)] & (1 << ((f) % (sizeof (int) * 8)))) |
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| 107 | # define FD_TYPE my_fd_set |
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| 108 | #else |
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| 109 | # define FD_TYPE fd_set |
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| 110 | #endif |
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| 111 | |
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| 112 | /* |
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| 113 | * local - server runs on local host |
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| 114 | * foreign - server runs on remote host |
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| 115 | * permanent - session restarted when it exits |
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| 116 | * transient - session not restarted when it exits |
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| 117 | * fromFile - started via entry in servers file |
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| 118 | * fromXDMCP - started with XDMCP |
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| 119 | */ |
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| 120 | |
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| 121 | typedef struct displayType { |
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| 122 | unsigned int location:1; |
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| 123 | unsigned int lifetime:1; |
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| 124 | unsigned int origin:1; |
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| 125 | } DisplayType; |
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| 126 | |
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| 127 | # define Local 1 |
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| 128 | # define Foreign 0 |
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| 129 | |
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| 130 | # define Permanent 1 |
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| 131 | # define Transient 0 |
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| 132 | |
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| 133 | # define FromFile 1 |
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| 134 | # define FromXDMCP 0 |
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| 135 | |
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| 136 | extern DisplayType parseDisplayType (); |
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| 137 | |
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| 138 | typedef enum fileState { NewEntry, OldEntry, MissingEntry } FileState; |
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| 139 | |
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| 140 | struct display { |
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| 141 | struct display *next; |
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| 142 | /* Xservers file / XDMCP information */ |
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| 143 | char *name; /* DISPLAY name */ |
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| 144 | char *class; /* display class (may be NULL) */ |
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| 145 | DisplayType displayType; /* method to handle with */ |
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| 146 | char **argv; /* program name and arguments */ |
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| 147 | |
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| 148 | /* display state */ |
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| 149 | DisplayStatus status; /* current status */ |
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| 150 | int pid; /* process id of child */ |
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| 151 | int serverPid; /* process id of server (-1 if none) */ |
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| 152 | FileState state; /* state during HUP processing */ |
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| 153 | int startTries; /* current start try */ |
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| 154 | |
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| 155 | #ifdef XDMCP |
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| 156 | /* XDMCP state */ |
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| 157 | CARD32 sessionID; /* ID of active session */ |
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| 158 | XdmcpNetaddr peer; /* display peer address */ |
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| 159 | int peerlen; /* length of peer address */ |
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| 160 | XdmcpNetaddr from; /* XDMCP port of display */ |
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| 161 | int fromlen; |
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| 162 | CARD16 displayNumber; |
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| 163 | int useChooser; /* Run the chooser for this display */ |
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| 164 | ARRAY8 clientAddr; /* for chooser picking */ |
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| 165 | CARD16 connectionType; /* ... */ |
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| 166 | #endif |
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| 167 | /* server management resources */ |
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| 168 | int serverAttempts; /* number of attempts at running X */ |
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| 169 | int openDelay; /* open delay time */ |
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| 170 | int openRepeat; /* open attempts to make */ |
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| 171 | int openTimeout; /* abort open attempt timeout */ |
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| 172 | int startAttempts; /* number of attempts at starting */ |
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| 173 | int pingInterval; /* interval between XSync */ |
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| 174 | int pingTimeout; /* timeout for XSync */ |
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| 175 | int terminateServer;/* restart for each session */ |
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| 176 | int grabServer; /* keep server grabbed for Login */ |
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| 177 | int grabTimeout; /* time to wait for grab */ |
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| 178 | int resetSignal; /* signal to reset server */ |
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| 179 | int termSignal; /* signal to terminate server */ |
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| 180 | int resetForAuth; /* server reads auth file at reset */ |
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| 181 | |
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| 182 | /* session resources */ |
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| 183 | char *resources; /* resource file */ |
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| 184 | char *xrdb; /* xrdb program */ |
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| 185 | char *setup; /* Xsetup program */ |
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| 186 | char *startup; /* Xstartup program */ |
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| 187 | char *reset; /* Xreset program */ |
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| 188 | char *session; /* Xsession program */ |
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| 189 | char *userPath; /* path set for session */ |
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| 190 | char *systemPath; /* path set for startup/reset */ |
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| 191 | char *systemShell; /* interpreter for startup/reset */ |
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| 192 | char *failsafeClient;/* a client to start when the session fails */ |
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| 193 | char *chooser; /* chooser program */ |
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| 194 | |
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| 195 | /* authorization resources */ |
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| 196 | int authorize; /* enable authorization */ |
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| 197 | char **authNames; /* authorization protocol names */ |
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| 198 | unsigned short *authNameLens; /* authorization protocol name lens */ |
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| 199 | char *clientAuthFile;/* client specified auth file */ |
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| 200 | char *userAuthDir; /* backup directory for tickets */ |
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| 201 | int authComplain; /* complain when no auth for XDMCP */ |
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| 202 | |
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| 203 | /* information potentially derived from resources */ |
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| 204 | int authNameNum; /* number of protocol names */ |
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| 205 | Xauth **authorizations;/* authorization data */ |
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| 206 | int authNum; /* number of authorizations */ |
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| 207 | char *authFile; /* file to store authorization in */ |
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| 208 | }; |
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| 209 | |
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| 210 | #ifdef XDMCP |
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| 211 | |
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| 212 | #define PROTO_TIMEOUT (30 * 60) /* 30 minutes should be long enough */ |
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| 213 | |
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| 214 | struct protoDisplay { |
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| 215 | struct protoDisplay *next; |
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| 216 | XdmcpNetaddr address; /* UDP address */ |
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| 217 | int addrlen; /* UDP address length */ |
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| 218 | unsigned long date; /* creation date */ |
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| 219 | CARD16 displayNumber; |
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| 220 | CARD16 connectionType; |
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| 221 | ARRAY8 connectionAddress; |
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| 222 | CARD32 sessionID; |
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| 223 | Xauth *fileAuthorization; |
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| 224 | Xauth *xdmcpAuthorization; |
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| 225 | ARRAY8 authenticationName; |
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| 226 | ARRAY8 authenticationData; |
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| 227 | XdmAuthKeyRec key; |
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| 228 | }; |
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| 229 | #endif /* XDMCP */ |
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| 230 | |
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| 231 | struct greet_info { |
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| 232 | char *name; /* user name */ |
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| 233 | char *password; /* user password */ |
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| 234 | char *string; /* random string */ |
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| 235 | }; |
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| 236 | |
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| 237 | /* setgroups is not covered by POSIX, arg type varies */ |
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| 238 | #if defined(SYSV) || defined(SVR4) |
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| 239 | #define GID_T gid_t |
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| 240 | #else |
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| 241 | #define GID_T int |
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| 242 | #endif |
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| 243 | |
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| 244 | struct verify_info { |
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| 245 | int uid; /* user id */ |
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| 246 | #ifdef NGROUPS_MAX |
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| 247 | GID_T groups[NGROUPS_MAX];/* group list */ |
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| 248 | int ngroups; /* number of elements in groups */ |
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| 249 | #else |
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| 250 | int gid; /* group id */ |
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| 251 | #endif |
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| 252 | char **argv; /* arguments to session */ |
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| 253 | char **userEnviron; /* environment for session */ |
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| 254 | char **systemEnviron;/* environment for startup/reset */ |
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| 255 | }; |
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| 256 | |
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| 257 | /* display manager exit status definitions */ |
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| 258 | |
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| 259 | # define OBEYSESS_DISPLAY 0 /* obey multipleSessions resource */ |
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| 260 | # define REMANAGE_DISPLAY 1 /* force remanage */ |
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| 261 | # define UNMANAGE_DISPLAY 2 /* force deletion */ |
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| 262 | # define RESERVER_DISPLAY 3 /* force server termination */ |
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| 263 | # define OPENFAILED_DISPLAY 4 /* XOpenDisplay failed, retry */ |
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| 264 | |
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| 265 | #ifndef TRUE |
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| 266 | #define TRUE 1 |
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| 267 | #define FALSE 0 |
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| 268 | #endif |
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| 269 | |
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| 270 | extern char *config; |
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| 271 | |
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| 272 | extern char *servers; |
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| 273 | extern int request_port; |
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| 274 | extern int debugLevel; |
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| 275 | extern char *errorLogFile; |
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| 276 | extern int daemonMode; |
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| 277 | extern char *pidFile; |
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| 278 | extern int lockPidFile; |
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| 279 | extern char *authDir; |
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| 280 | extern int autoRescan; |
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| 281 | extern int removeDomainname; |
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| 282 | extern char *keyFile; |
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| 283 | extern char *accessFile; |
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| 284 | extern char **exportList; |
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| 285 | extern char *randomFile; |
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| 286 | |
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| 287 | extern struct display *FindDisplayByName (), |
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| 288 | *FindDisplayBySessionID (), |
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| 289 | *FindDisplayByAddress (), |
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| 290 | *FindDisplayByPid (), |
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| 291 | *FindDisplayByServerPid (), |
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| 292 | *NewDisplay (); |
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| 293 | |
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| 294 | extern struct protoDisplay *FindProtoDisplay (), |
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| 295 | *NewProtoDisplay (); |
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| 296 | |
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| 297 | extern char *localHostname (); |
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| 298 | /* |
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| 299 | * CloseOnFork flags |
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| 300 | */ |
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| 301 | |
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| 302 | # define CLOSE_ALWAYS 0 |
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| 303 | # define LEAVE_FOR_DISPLAY 1 |
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| 304 | |
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| 305 | #ifndef X_NOT_STDC_ENV |
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| 306 | #include <stdlib.h> |
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| 307 | #else |
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| 308 | char *malloc(), *realloc(); |
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| 309 | #endif |
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| 310 | #if defined(macII) && !defined(__STDC__) /* stdlib.h fails to define these */ |
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| 311 | char *malloc(), *realloc(); |
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| 312 | #endif /* macII */ |
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| 313 | |
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| 314 | #if defined(X_NOT_POSIX) && defined(SIGNALRETURNSINT) |
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| 315 | #define SIGVAL int |
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| 316 | #else |
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| 317 | #define SIGVAL void |
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| 318 | #endif |
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| 319 | |
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| 320 | #ifdef X_NOT_POSIX |
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| 321 | #ifdef SYSV |
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| 322 | #define SIGNALS_RESET_WHEN_CAUGHT |
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| 323 | #define UNRELIABLE_SIGNALS |
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| 324 | #endif |
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| 325 | #define Setjmp(e) setjmp(e) |
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| 326 | #define Longjmp(e,v) longjmp(e,v) |
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| 327 | #define Jmp_buf jmp_buf |
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| 328 | #else |
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| 329 | #define Setjmp(e) sigsetjmp(e,1) |
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| 330 | #define Longjmp(e,v) siglongjmp(e,v) |
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| 331 | #define Jmp_buf sigjmp_buf |
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| 332 | #endif |
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| 333 | |
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| 334 | SIGVAL (*Signal())(); |
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