openldap/servers/slapd/main.c

552 lines
12 KiB
C

/* $OpenLDAP$ */
/*
* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/signal.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include <ac/unistd.h>
#include <ac/wait.h>
#include <ac/signal.h>
#include <ac/errno.h>
#include "slap.h"
#include "lutil.h"
#ifdef LDAP_SIGCHLD
static RETSIGTYPE wait4child( int sig );
#endif
#ifdef HAVE_NT_SERVICE_MANAGER
#define MAIN_RETURN(x) return
struct sockaddr_in bind_addr;
/* in nt_main.c */
LIBLUTIL_F (SERVICE_STATUS) SLAPDServiceStatus;
LIBLUTIL_F (SERVICE_STATUS_HANDLE) hSLAPDServiceStatus;
extern ldap_pvt_thread_cond_t started_event, stopped_event;
extern int is_NT_Service;
void CommenceStartupProcessing( LPCTSTR serviceName,
void(*stopper)(int));
void ReportSlapdShutdownComplete( void );
void *getRegParam( char *svc, char *value );
#define SERVICE_EXIT( e, n ) do { \
if ( is_NT_Service ) { \
SLAPDServiceStatus.dwWin32ExitCode = (e); \
SLAPDServiceStatus.dwServiceSpecificExitCode = (n); \
} \
} while ( 0 )
#else
#define SERVICE_EXIT( e, n )
#define MAIN_RETURN(x) return(x)
#endif
#ifdef HAVE_NT_EVENT_LOG
void LogSlapdStartedEvent( char *svc, int slap_debug, char *configfile, char *urls );
void LogSlapdStoppedEvent( char *svc );
#endif
/*
* when more than one slapd is running on one machine, each one might have
* it's own LOCAL for syslogging and must have its own pid/args files
*/
#ifndef HAVE_MKVERSION
const char Versionstr[] =
OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
#endif
#ifdef LOG_LOCAL4
#define DEFAULT_SYSLOG_USER LOG_LOCAL4
typedef struct _str2intDispatch {
char *stringVal;
int abbr;
int intVal;
} STRDISP, *STRDISP_P;
/* table to compute syslog-options to integer */
static STRDISP syslog_types[] = {
{ "LOCAL0", sizeof("LOCAL0"), LOG_LOCAL0 },
{ "LOCAL1", sizeof("LOCAL1"), LOG_LOCAL1 },
{ "LOCAL2", sizeof("LOCAL2"), LOG_LOCAL2 },
{ "LOCAL3", sizeof("LOCAL3"), LOG_LOCAL3 },
{ "LOCAL4", sizeof("LOCAL4"), LOG_LOCAL4 },
{ "LOCAL5", sizeof("LOCAL5"), LOG_LOCAL5 },
{ "LOCAL6", sizeof("LOCAL6"), LOG_LOCAL6 },
{ "LOCAL7", sizeof("LOCAL7"), LOG_LOCAL7 },
{ NULL }
};
static int cnvt_str2int( char *, STRDISP_P, int );
#endif /* LOG_LOCAL4 */
static void
usage( char *name )
{
fprintf( stderr,
"usage: %s options\n", name );
fprintf( stderr,
#if LDAP_CONNECTIONLESS
"\t-c\t\tEnable (experimental) Connectionless LDAP\n"
#endif
"\t-d level\tDebug Level" "\n"
"\t-f filename\tConfiguration File\n"
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
"\t-g group\tGroup (id or name) to ran as\n"
#endif
"\t-h URLs\tList of URLs to serve\n"
#ifdef LOG_LOCAL4
"\t-l sysloguser\tSyslog User (default: LOCAL4)\n"
#endif
#ifdef HAVE_NT_EVENT_LOG
"\t-n NTserviceName\tNT service name\n"
#endif
"\t-p port\tLDAP Port\n"
#ifdef HAVE_TLS
"\t-P port\tLDAP over TLS Port\n"
#endif
"\t-s level\tSyslog Level\n"
#ifdef SLAPD_BDB2
"\t-t\t\tEnable BDB2 timing\n"
#endif
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
"\t-u user\tUser (id or name) to ran as\n"
#endif
);
}
#ifdef HAVE_NT_SERVICE_MANAGER
void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
#else
int main( int argc, char **argv )
#endif
{
int i, no_detach = 0;
int rc;
char *urls = NULL;
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
char *username = NULL;
char *groupname = NULL;
#endif
#ifdef LOG_LOCAL4
int syslogUser = DEFAULT_SYSLOG_USER;
#endif
#ifdef HAVE_NT_EVENT_LOG
char *NTservice = SERVICE_NAME;
#endif
#ifdef HAVE_NT_SERVICE_MANAGER
char *configfile = ".\\slapd.conf";
#else
char *configfile = SLAPD_DEFAULT_CONFIGFILE;
#endif
char *serverName;
int serverMode = SLAP_SERVER_MODE;
int port = LDAP_PORT;
#ifdef HAVE_TLS
int tls_port = LDAPS_PORT;
#else
int tls_port = 0;
#endif
#ifdef CSRIMALLOC
FILE *leakfile;
if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
leakfile = stderr;
}
#endif
g_argc = argc;
g_argv = argv;
#ifdef HAVE_NT_SERVICE_MANAGER
{
int *i;
char *newConfigFile;
if ( is_NT_Service ) {
CommenceStartupProcessing( NTservice, slap_sig_shutdown );
}
i = (int*)getRegParam( NULL, "Port" );
if ( i != NULL )
{
port = *i;
Debug ( LDAP_DEBUG_ANY, "new port from registry is: %d\n", port, 0, 0 );
}
#ifdef HAVE_TLS
i = (int*)getRegParam( NULL, "TLSPort" );
if ( i != NULL )
{
tls_port = *i;
Debug ( LDAP_DEBUG_ANY, "new TLS port from registry is: %d\n", tls_port, 0, 0 );
}
#endif
i = (int*)getRegParam( NULL, "DebugLevel" );
if ( i != NULL )
{
slap_debug = *i;
Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n", slap_debug, 0, 0 );
}
newConfigFile = (char*)getRegParam( NULL, "ConfigFile" );
if ( newConfigFile != NULL )
{
configfile = newConfigFile;
Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
}
}
#endif
while ( (i = getopt( argc, argv,
"d:f:h:p:s:"
#ifdef LOG_LOCAL4
"l:"
#endif
#ifdef SLAPD_BDB2
"t"
#endif
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
"u:g:"
#endif
#ifdef LDAP_CONNECTIONLESS
"c"
#endif
#ifdef HAVE_NT_EVENT_LOG
"n:"
#endif
#ifdef HAVE_TLS
"P:"
#endif
)) != EOF ) {
switch ( i ) {
case 'h': /* listen URLs */
if ( urls != NULL ) free( urls );
urls = ch_strdup( optarg );
break;
case 'd': /* set debug level and 'do not detach' flag */
no_detach = 1;
#ifdef LDAP_DEBUG
slap_debug |= atoi( optarg );
#else
if ( atoi( optarg ) != 0 )
fputs( "must compile with LDAP_DEBUG for debugging\n",
stderr );
#endif
break;
case 'f': /* read config file */
configfile = ch_strdup( optarg );
break;
case 'p': { /* port on which to listen */
int p = atoi( optarg );
if(! p ) {
fprintf(stderr, "-p %s must be numeric\n", optarg);
} else if( p < 0 || p >= 1<<16) {
fprintf(stderr, "-p %s invalid\n", optarg);
} else {
port = p;
}
} break;
#ifdef HAVE_TLS
case 'P': { /* port on which to listen for TLS */
int p = atoi( optarg );
if(! p ) {
fprintf(stderr, "-P %s must be numeric\n", optarg);
} else if( p < 0 || p >= 1<<16) {
fprintf(stderr, "-P %s invalid\n", optarg);
} else {
tls_port = p;
}
} break;
#endif
case 's': /* set syslog level */
ldap_syslog = atoi( optarg );
break;
#ifdef LOG_LOCAL4
case 'l': /* set syslog local user */
syslogUser = cnvt_str2int( optarg,
syslog_types, DEFAULT_SYSLOG_USER );
break;
#endif
#ifdef LDAP_CONNECTIONLESS
case 'c': /* do connectionless (udp) */
/* udp = 1; */
fprintf( stderr, "connectionless support not supported");
exit( EXIT_FAILURE );
break;
#endif
#ifdef SLAPD_BDB2
case 't': /* timed server */
serverMode |= SLAP_TIMED_MODE;
break;
#endif
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
case 'u': /* user name */
if( username ) free(username);
username = ch_strdup( optarg );
break;
case 'g': /* group name */
if( groupname ) free(groupname);
groupname = ch_strdup( optarg );
break;
#endif /* SETUID && GETUID */
#ifdef HAVE_NT_EVENT_LOG
case 'n': /* NT service name */
NTservice = ch_strdup( optarg );
break;
#endif
default:
usage( argv[0] );
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
goto stop;
}
}
ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
ldif_debug = slap_debug;
Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
if ( (serverName = strrchr( argv[0], *LDAP_DIRSEP )) == NULL ) {
serverName = ch_strdup( argv[0] );
} else {
serverName = ch_strdup( serverName + 1 );
}
#ifdef LOG_LOCAL4
openlog( serverName, OPENLOG_OPTIONS, syslogUser );
#elif LOG_DEBUG
openlog( serverName, OPENLOG_OPTIONS );
#endif
if( slapd_daemon_init( urls, port, tls_port ) != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
goto stop;
}
#if defined(HAVE_SETUID) && defined(HAVE_SETGID)
if ( username != NULL || groupname != NULL ) {
slap_init_user( username, groupname );
}
#endif
extops_init();
#ifdef SLAPD_MODULES
if ( module_init() != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 17 );
goto destroy;
}
#endif
if ( slap_init( serverMode, serverName ) != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
goto destroy;
}
if ( read_config( configfile ) != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
goto destroy;
}
#ifdef HAVE_TLS
ldap_pvt_tls_init();
ldap_pvt_tls_init_def_ctx();
#endif
(void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
(void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
#ifdef SIGPIPE
(void) SIGNAL( SIGPIPE, SIG_IGN );
#endif
#ifdef SIGHUP
(void) SIGNAL( SIGHUP, slap_sig_shutdown );
#endif
(void) SIGNAL( SIGINT, slap_sig_shutdown );
(void) SIGNAL( SIGTERM, slap_sig_shutdown );
#ifdef LDAP_SIGCHLD
(void) SIGNAL( LDAP_SIGCHLD, wait4child );
#endif
#ifdef SIGBREAK
/* SIGBREAK is generated when Ctrl-Break is pressed. */
(void) SIGNAL( SIGBREAK, slap_sig_shutdown );
#endif
#ifndef HAVE_WINSOCK
lutil_detach( no_detach, 0 );
#endif /* HAVE_WINSOCK */
#ifdef CSRIMALLOC
mal_leaktrace(1);
#endif
if ( slap_startup( NULL ) != 0 ) {
rc = 1;
SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
goto shutdown;
}
{
FILE *fp;
Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
if (( slapd_pid_file != NULL ) &&
(( fp = fopen( slapd_pid_file, "w" )) != NULL ))
{
fprintf( fp, "%d\n", (int) getpid() );
fclose( fp );
}
if (( slapd_args_file != NULL ) &&
(( fp = fopen( slapd_args_file, "w" )) != NULL ))
{
for ( i = 0; i < g_argc; i++ ) {
fprintf( fp, "%s ", g_argv[i] );
}
fprintf( fp, "\n" );
fclose( fp );
}
}
#ifdef HAVE_NT_EVENT_LOG
LogSlapdStartedEvent( NTservice, slap_debug, configfile, urls );
#endif
rc = slapd_daemon();
#ifdef HAVE_NT_SERVICE_MANAGER
/* Throw away the event that we used during the startup process. */
if ( is_NT_Service )
ldap_pvt_thread_cond_destroy( &started_event );
#endif
shutdown:
/* remember an error during shutdown */
rc |= slap_shutdown( NULL );
destroy:
/* remember an error during destroy */
rc |= slap_destroy();
#ifdef SLAPD_MODULES
module_kill();
#endif
extops_kill();
stop:
#ifdef HAVE_NT_EVENT_LOG
LogSlapdStoppedEvent( NTservice );
#endif
Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
#ifdef HAVE_NT_SERVICE_MANAGER
ReportSlapdShutdownComplete();
#endif
#ifdef LOG_DEBUG
closelog();
#endif
slapd_daemon_destroy();
#ifdef CSRIMALLOC
mal_dumpleaktrace( leakfile );
#endif
MAIN_RETURN(rc);
}
#ifdef LDAP_SIGCHLD
/*
* Catch and discard terminated child processes, to avoid zombies.
*/
static RETSIGTYPE
wait4child( int sig )
{
int save_errno = errno;
#ifdef WNOHANG
errno = 0;
#ifdef HAVE_WAITPID
while ( waitpid( (pid_t)-1, NULL, WNOHANG ) >= 0 || errno == EINTR )
; /* NULL */
#else
while ( wait3( NULL, WNOHANG, NULL ) >= 0 || errno == EINTR )
; /* NULL */
#endif
#else
(void) wait( NULL );
#endif
(void) SIGNAL( sig, wait4child );
errno = save_errno;
}
#endif /* SIGCHLD || SIGCLD */
#ifdef LOG_LOCAL4
/*
* Convert a string to an integer by means of a dispatcher table
* if the string is not in the table return the default
*/
static int
cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
{
int retVal = defaultVal;
STRDISP_P disp;
for (disp = dispatcher; disp->stringVal; disp++) {
if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
retVal = disp->intVal;
break;
}
}
return (retVal);
}
#endif /* LOG_LOCAL4 */