appl/kx/kx.h

   1 /*
   2  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 /* $Id$ */
  40
  41 #ifdef HAVE_CONFIG_H
  42 #include "config.h"
  43 #endif /* HAVE_CONFIG_H */
  44
  45 #include <stdio.h>
  46 #include <stdarg.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <signal.h>
  50 #include <errno.h>
  51 #ifdef HAVE_UNISTD_H
  52 #include <unistd.h>
  53 #endif
  54 #ifdef HAVE_PWD_H
  55 #include <pwd.h>
  56 #endif
  57 #ifdef HAVE_GRP_H
  58 #include <grp.h>
  59 #endif
  60 #ifdef HAVE_SYSLOG_H
  61 #include <syslog.h>
  62 #endif
  63 #ifdef HAVE_SYS_TYPES_H
  64 #include <sys/types.h>
  65 #endif
  66 #ifdef TIME_WITH_SYS_TIME
  67 #include <sys/time.h>
  68 #include <time.h>
  69 #elif defined(HAVE_SYS_TIME_H)
  70 #include <sys/time.h>
  71 #else
  72 #include <time.h>
  73 #endif
  74 #ifdef HAVE_SYS_RESOURCE_H
  75 #include <sys/resource.h>
  76 #endif
  77 #ifdef HAVE_SYS_SELECT_H
  78 #include <sys/select.h>
  79 #endif
  80 #ifdef HAVE_SYS_WAIT_H
  81 #include <sys/wait.h>
  82 #endif
  83 #ifdef HAVE_SYS_STAT_H
  84 #include <sys/stat.h>
  85 #endif
  86 #ifdef HAVE_SYS_SOCKET_H
  87 #include <sys/socket.h>
  88 #endif
  89 #ifdef HAVE_NETINET_IN_H
  90 #include <netinet/in.h>
  91 #endif
  92 #ifdef HAVE_NETINET_TCP_H
  93 #include <netinet/tcp.h>
  94 #endif
  95 #ifdef HAVE_ARPA_INET_H
  96 #include <arpa/inet.h>
  97 #endif
  98 #ifdef HAVE_NETDB_H
  99 #include <netdb.h>
 100 #endif
 101 #ifdef HAVE_SYS_UN_H
 102 #include <sys/un.h>
 103 #endif
 104 #include <X11/X.h>
 105 #include <X11/Xlib.h>
 106 #include <X11/Xauth.h>
 107
 108 #ifdef SOCKS
 109 #include <socks.h>
 110 #endif
 111
 112 #include <krb.h>
 113
 114 #include <err.h>
 115 #include <roken.h>
 116
 117 int copy_encrypted (int fd1, int fd2, des_cblock *iv,
 118                     des_key_schedule schedule);
 119
 120 extern char x_socket[];
 121 extern u_int32_t display_num;
 122 extern char display[];
 123 extern int display_size;
 124 extern char xauthfile[];
 125 extern int xauthfile_size;
 126 extern u_char cookie[];
 127 extern size_t cookie_len;
 128
 129 int get_xsockets (int *unix_socket, int *tcp_socket);
 130 int connect_local_xsocket (unsigned dnr);
 131 int create_and_write_cookie (char *xauthfile,
 132                              size_t size,
 133                              u_char *cookie,
 134                              size_t sz);
 135 int verify_and_remove_cookies (int fd, int sock);
 136 int replace_cookie(int xserver, int fd, char *filename);
 137
 138 int suspicious_address (int sock, struct sockaddr_in addr);
 139
 140 int
 141 write_encrypted (int fd, void *buf, size_t len, des_key_schedule schedule,
 142                  des_cblock *session, struct sockaddr_in *me,
 143                  struct sockaddr_in *him);
 144
 145 int
 146 read_encrypted (int fd, void *buf, size_t len, void **ret,
 147                 des_key_schedule schedule, des_cblock *session,
 148                 struct sockaddr_in *him, struct sockaddr_in *me);
 149
 150
 151 #define KX_PORT 2111
 152
 153 #define KX_OLD_VERSION "KXSERV.1"
 154 #define KX_VERSION "KXSERV.2"
 155
 156 #define COOKIE_TYPE "MIT-MAGIC-COOKIE-1"
 157
 158 enum { INIT = 0, ACK = 1, NEW_CONN = 2, ERROR = 3 };
 159
 160 enum kx_flags { PASSIVE = 1, KEEP_ALIVE = 2 };
 161
 162 typedef enum kx_flags kx_flags;