terminal_t *null_new (ini_sct_t *ini)
{
null_t *nt;
nt = malloc (sizeof (null_t));
if (nt == NULL) {
return (NULL);
}
null_init (nt, ini);
return (&nt->trm);
}
int
config_init(char *style, int readit)
{
int rv;
if (strcmp(style, "emulab") == 0) {
#ifdef USE_EMULAB_CONFIG
extern struct config *emulab_init();
if (myconfig == NULL) {
if ((myconfig = emulab_init()) != NULL)
log("Using Emulab configuration");
} else
log("Emulab config init failed");
#else
log("Not built with Emulab configuration");
#endif
}
if (strcmp(style, "null") == 0) {
#ifdef USE_NULL_CONFIG
extern struct config *null_init();
if (myconfig == NULL) {
if ((myconfig = null_init()) != NULL)
log("Using null configuration");
} else
log("Null config init failed");
#else
log("Not built with Null configuration");
#endif
}
if (myconfig == NULL) {
error("*** No configuration found");
return -1;
}
if (readit) {
rv = myconfig->config_read();
if (rv) {
myconfig->config_deinit();
return rv;
}
}
signal(SIGHUP, config_signal);
return 0;
}
int main(int argc, char *argv[])
{
#ifdef ARCH_PC_WIN95
int ret;
#endif
#ifndef ARCH_PC_WIN95
struct group *grp;
struct passwd *pwd;
#endif
Alarm_set_types( CONF_SYS );
Alarm_set_priority( SPLOG_INFO );
Alarmp( SPLOG_PRINT, SYSTEM, "/===========================================================================\\\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| The Spread Toolkit. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Copyright (c) 1993-2013 Spread Concepts LLC |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| All rights reserved. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| The Spread toolkit is licensed under the Spread Open-Source License. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| You may only use this software in compliance with the License. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| A copy of the license can be found at http://www.spread.org/license |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| This product uses software developed by Spread Concepts LLC for use |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| in the Spread toolkit. For more information about Spread, |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| see http://www.spread.org |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| This software is distributed on an \"AS IS\" basis, WITHOUT WARRANTY OF |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| ANY KIND, either express or implied. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Creators: |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Yair Amir [email protected] |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Michal Miskin-Amir [email protected] |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Jonathan Stanton [email protected] |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| John Schultz [email protected] |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Major Contributors: |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Ryan Caudy [email protected] - contribution to process groups.|\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Claudiu Danilov [email protected] - scalable, wide-area support. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Cristina Nita-Rotaru [email protected] - GC security. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Theo Schlossnagle [email protected] - Perl, autoconf, old skiplist. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Dan Schoenblum [email protected] - Java interface. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Special thanks to the following for discussions and ideas: |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Ken Birman, Danny Dolev, Jacob Green, Mike Goodrich, Ben Laurie, |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| David Shaw, Gene Tsudik, Robbert VanRenesse. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Partial funding provided by the Defense Advanced Research Project Agency |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| (DARPA) and the National Security Agency (NSA) 2000-2004. The Spread |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| toolkit is not necessarily endorsed by DARPA or the NSA. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| For a full list of contributors, see Readme.txt in the distribution. |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| WWW: www.spread.org www.spreadconcepts.com |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Contact: [email protected] |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| |\n");
Alarmp( SPLOG_PRINT, SYSTEM, "| Version %d.%02d.%02d Built %-17s |\n",
(int)SP_MAJOR_VERSION, (int)SP_MINOR_VERSION, (int)SP_PATCH_VERSION, Spread_build_date );
Alarmp( SPLOG_PRINT, SYSTEM, "\\===========================================================================/\n");
Usage( argc, argv );
#ifdef ARCH_PC_WIN95
ret = WSAStartup( MAKEWORD(1,1), &WSAData );
if( ret != 0 )
Alarmp( SPLOG_FATAL, NETWORK, "Spread: winsock initialization error %d\n", ret );
#endif /* ARCH_PC_WIN95 */
/* initialize each valid authentication protocol */
null_init();
ip_init();
#ifdef ENABLE_PASSWORD
pword_init();
#endif
permit_init();
/* Initialize Access Control & Authentication */
Acm_init();
Conf_init( Config_file, My_name );
E_init();
#ifndef ARCH_PC_WIN95
/* Verify that unix socket dir is safe if runing as root user */
if (geteuid() == (uid_t) 0) {
struct stat usock_stat;
Alarmp( SPLOG_INFO, SECURITY, "Spread is running as root so check file locations\n");
if (stat( SP_UNIX_SOCKET, &usock_stat)) {
Alarmp( SPLOG_FATAL, SECURITY, "Spread unable to stat the unix domain socket dir (%s). Please verify the selected directory and restart the daemon\n", SP_UNIX_SOCKET );
exit( 0 );
}
if ( (usock_stat.st_mode & S_IWOTH) || !(usock_stat.st_uid == (uid_t) 0) )
Alarmp( SPLOG_WARNING, PRINT, "Spread: SECURITY RISK! running as root, but unix domain socket is not in a root-only writable directory. May risk denial of service or malicious deletion of unexpected file in directory: %s\n", SP_UNIX_SOCKET );
}
#endif
Sess_init();
Stat_init();
if( Log ) Log_init();
#ifndef ARCH_PC_WIN95
/* Yupp, we're paranoid */
if (geteuid() != (uid_t) 0) {
Alarmp( SPLOG_WARNING, SECURITY, "Spread: not running as root, won't chroot\n" );
}
else if ( (grp = getgrnam(Conf_get_group())) == NULL
|| (pwd = getpwnam(Conf_get_user())) == NULL ) {
Invalid_privilege_decrease(Conf_get_user(), Conf_get_group());
}
else if (chdir(Conf_get_runtime_dir()) < 0
|| chroot(Conf_get_runtime_dir()) < 0 ) {
Alarmp( SPLOG_FATAL, SECURITY, "Spread: FAILED chroot to '%s'\n",
Conf_get_runtime_dir() );
}
else if ( setgroups(1, &grp->gr_gid) < 0
|| setgid(grp->gr_gid) < 0
|| setuid(pwd->pw_uid) < 0) {
Invalid_privilege_decrease(Conf_get_user(), Conf_get_group());
} else {
Alarmp( SPLOG_INFO, SECURITY, "Spread: setugid and chroot successeful\n" );
}
#endif /* ARCH_PC_WIN95 */
E_handle_events();
return 0;
}
INT null(INT cmd, ...)
{
va_list argptr;
HNDLE hkey;
INT status, size, timeout;
void *info;
char *str, *pattern;
va_start(argptr, cmd);
status = FE_SUCCESS;
switch (cmd) {
case CMD_INIT:
hkey = va_arg(argptr, HNDLE);
info = va_arg(argptr, void *);
status = null_init(hkey, info);
break;
case CMD_EXIT:
info = va_arg(argptr, void *);
status = null_exit(info);
break;
case CMD_NAME:
info = va_arg(argptr, void *);
str = va_arg(argptr, char *);
strcpy(str, "null");
break;
case CMD_WRITE:
info = va_arg(argptr, void *);
str = va_arg(argptr, char *);
size = va_arg(argptr, int);
status = null_write(info, str, size);
break;
case CMD_READ:
info = va_arg(argptr, void *);
str = va_arg(argptr, char *);
size = va_arg(argptr, INT);
timeout = va_arg(argptr, INT);
status = null_read(info, str, size, timeout);
break;
case CMD_PUTS:
info = va_arg(argptr, void *);
str = va_arg(argptr, char *);
status = null_puts(info, str);
break;
case CMD_GETS:
info = va_arg(argptr, void *);
str = va_arg(argptr, char *);
size = va_arg(argptr, INT);
pattern = va_arg(argptr, char *);
timeout = va_arg(argptr, INT);
status = null_gets(info, str, size, pattern, timeout);
break;
case CMD_DEBUG:
status = va_arg(argptr, INT);
debug_flag = status;
break;
}
va_end(argptr);
return status;
}
