/* $OpenLDAP$ */ /* * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved. * COPYING RESTRICTIONS APPLY, see COPYRIGHT file */ #include "portable.h" #include #include #include #include #include #include #include #include "ldap_pvt.h" #include "ldap_pvt_thread.h" #include "lutil.h" #include "slap.h" #ifdef HAVE_TCPD #include int allow_severity = LOG_INFO; int deny_severity = LOG_NOTICE; #endif /* TCP Wrappers */ #ifdef LDAP_PF_LOCAL #include /* this should go in as soon as it is accepted */ #define LDAPI_MOD_URLEXT "x-mod" #endif /* LDAP_PF_LOCAL */ /* globals */ time_t starttime; ber_socket_t dtblsize; Listener **slap_listeners = NULL; #define SLAPD_LISTEN 10 static ber_socket_t wake_sds[2]; #ifdef NO_THREADS static int waking; #define WAKE_LISTENER(w) \ ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0) #else #define WAKE_LISTENER(w) \ do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0) #endif #ifndef HAVE_WINSOCK static #endif volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0; static struct slap_daemon { ldap_pvt_thread_mutex_t sd_mutex; ber_socket_t sd_nactives; #ifndef HAVE_WINSOCK /* In winsock, accept() returns values higher than dtblsize so don't bother with this optimization */ int sd_nfds; #endif fd_set sd_actives; fd_set sd_readers; fd_set sd_writers; } slap_daemon; #ifdef HAVE_SLP /* * SLP related functions */ #include #define LDAP_SRVTYPE_PREFIX "service:ldap://" #define LDAPS_SRVTYPE_PREFIX "service:ldaps://" static char** slapd_srvurls = NULL; static SLPHandle slapd_hslp = 0; void slapd_slp_init( const char* urls ) { int i; slapd_srvurls = str2charray( urls, " " ); if( slapd_srvurls == NULL ) return; /* find and expand INADDR_ANY URLs */ for( i=0; slapd_srvurls[i] != NULL; i++ ) { if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) { char *host = ldap_pvt_get_fqdn( NULL ); if ( host != NULL ) { slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i], strlen( host ) + sizeof( LDAP_SRVTYPE_PREFIX ) ); strcpy( slap_strcopy(slapd_srvurls[i], LDAP_SRVTYPE_PREFIX ), host ); ch_free( host ); } } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) { char *host = ldap_pvt_get_fqdn( NULL ); if ( host != NULL ) { slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i], strlen( host ) + sizeof( LDAPS_SRVTYPE_PREFIX ) ); strcpy( slap_strcopy(slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX ), host ); ch_free( host ); } } } /* open the SLP handle */ SLPOpen( "en", 0, &slapd_hslp ); } void slapd_slp_deinit() { if( slapd_srvurls == NULL ) return; charray_free( slapd_srvurls ); slapd_srvurls = NULL; /* close the SLP handle */ SLPClose( slapd_hslp ); } void slapd_slp_regreport( SLPHandle hslp, SLPError errcode, void* cookie ) { /* empty report */ } void slapd_slp_reg() { int i; for( i=0; slapd_srvurls[i] != NULL; i++ ) { if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX, sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 || strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX, sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 ) { SLPReg( slapd_hslp, slapd_srvurls[i], SLP_LIFETIME_MAXIMUM, "ldap", "", 1, slapd_slp_regreport, NULL ); } } } void slapd_slp_dereg() { int i; for( i=0; slapd_srvurls[i] != NULL; i++ ) { SLPDereg( slapd_hslp, slapd_srvurls[i], slapd_slp_regreport, NULL ); } } #endif /* HAVE_SLP */ /* * Add a descriptor to daemon control */ static void slapd_add(ber_socket_t s) { ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); assert( !FD_ISSET( s, &slap_daemon.sd_actives )); assert( !FD_ISSET( s, &slap_daemon.sd_readers )); assert( !FD_ISSET( s, &slap_daemon.sd_writers )); #ifndef HAVE_WINSOCK if (s >= slap_daemon.sd_nfds) { slap_daemon.sd_nfds = s + 1; } #endif slap_daemon.sd_nactives++; FD_SET( s, &slap_daemon.sd_actives ); FD_SET( s, &slap_daemon.sd_readers ); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slapd_add: added %ld%s%s\n", (long)s, FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "", FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" )); #else Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n", (long) s, FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "", FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" ); #endif ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); } /* * Remove the descriptor from daemon control */ void slapd_remove(ber_socket_t s, int wake) { ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); slap_daemon.sd_nactives--; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slapd_remove: removing %ld%s%s\n", (long) s, FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "", FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" )); #else Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n", (long) s, FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "", FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" ); #endif FD_CLR( s, &slap_daemon.sd_actives ); FD_CLR( s, &slap_daemon.sd_readers ); FD_CLR( s, &slap_daemon.sd_writers ); ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); WAKE_LISTENER(wake || slapd_gentle_shutdown == 2); } void slapd_clr_write(ber_socket_t s, int wake) { ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); assert( FD_ISSET( s, &slap_daemon.sd_actives) ); FD_CLR( s, &slap_daemon.sd_writers ); ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); WAKE_LISTENER(wake); } void slapd_set_write(ber_socket_t s, int wake) { ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); assert( FD_ISSET( s, &slap_daemon.sd_actives) ); if (!FD_ISSET(s, &slap_daemon.sd_writers)) FD_SET( (unsigned) s, &slap_daemon.sd_writers ); ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); WAKE_LISTENER(wake); } void slapd_clr_read(ber_socket_t s, int wake) { ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); assert( FD_ISSET( s, &slap_daemon.sd_actives) ); FD_CLR( s, &slap_daemon.sd_readers ); ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); WAKE_LISTENER(wake); } void slapd_set_read(ber_socket_t s, int wake) { ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); assert( FD_ISSET( s, &slap_daemon.sd_actives) ); if (!FD_ISSET(s, &slap_daemon.sd_readers)) FD_SET( s, &slap_daemon.sd_readers ); ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); WAKE_LISTENER(wake); } static void slapd_close(ber_socket_t s) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slapd_close: closing %ld\n", (long)s )); #else Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n", (long) s, 0, 0 ); #endif tcp_close(s); } static void slap_free_listener_addresses(struct sockaddr **sal) { struct sockaddr **sap; if (sal == NULL) { return; } for (sap = sal; *sap != NULL; sap++) { ch_free(*sap); } ch_free(sal); } #ifdef LDAP_PF_LOCAL static int get_url_perms( char **exts, mode_t *perms, int *crit ) { int i; assert( exts ); assert( perms ); assert( crit ); *crit = 0; for ( i = 0; exts[ i ]; i++ ) { char *type = exts[ i ]; int c = 0; if ( type[ 0 ] == '!' ) { c = 1; type++; } if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) { char *value = type + sizeof(LDAPI_MOD_URLEXT "=") - 1; mode_t p = 0; int j; if ( strlen(value) != 3 ) { return LDAP_OTHER; } for ( j = 0; j < 3; j++ ) { static mode_t m[ 3 ] = { S_IRWXU, S_IRWXG, S_IRWXO }; switch ( value[ j ] ) { case 'w': p |= m[ j ]; break; case '-': break; default: return LDAP_OTHER; } } *crit = c; *perms = p; return LDAP_SUCCESS; } } return LDAP_OTHER; } #endif /* LDAP_PF_LOCAL */ /* port = 0 indicates AF_LOCAL */ static int slap_get_listener_addresses( const char *host, unsigned short port, struct sockaddr ***sal) { struct sockaddr **sap; #ifdef LDAP_PF_LOCAL if ( port == 0 ) { *sal = ch_malloc(2 * sizeof(void *)); if (*sal == NULL) { return -1; } sap = *sal; *sap = ch_malloc(sizeof(struct sockaddr_un)); if (*sap == NULL) goto errexit; sap[1] = NULL; if ( strlen(host) > (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_get_listener_addresses: domain socket path (%s) too long in URL\n", host )); #else Debug( LDAP_DEBUG_ANY, "daemon: domain socket path (%s) too long in URL", host, 0, 0); #endif goto errexit; } (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) ); (*sap)->sa_family = AF_LOCAL; strcpy( ((struct sockaddr_un *)*sap)->sun_path, host ); } else #endif { #ifdef HAVE_GETADDRINFO struct addrinfo hints, *res, *sai; int n, err; char serv[7]; memset( &hints, '\0', sizeof(hints) ); hints.ai_flags = AI_PASSIVE; hints.ai_socktype = SOCK_STREAM; hints.ai_family = AF_UNSPEC; snprintf(serv, sizeof serv, "%d", port); if ( (err = getaddrinfo(host, serv, &hints, &res)) ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_get_listener_addresses: getaddrinfo failed: %s\n", AC_GAI_STRERROR(err) )); #else Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n", AC_GAI_STRERROR(err), 0, 0); #endif return -1; } sai = res; for (n=2; (sai = sai->ai_next) != NULL; n++) { /* EMPTY */ ; } *sal = ch_calloc(n, sizeof(void *)); if (*sal == NULL) { return -1; } sap = *sal; *sap = NULL; for ( sai=res; sai; sai=sai->ai_next ) { if( sai->ai_addr == NULL ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_get_listener_addresses: " "getaddrinfo ai_addr is NULL?\n" )); #else Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: " "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 ); #endif freeaddrinfo(res); goto errexit; } switch (sai->ai_family) { # ifdef LDAP_PF_INET6 case AF_INET6: *sap = ch_malloc(sizeof(struct sockaddr_in6)); if (*sap == NULL) { freeaddrinfo(res); goto errexit; } *(struct sockaddr_in6 *)*sap = *((struct sockaddr_in6 *)sai->ai_addr); break; # endif case AF_INET: *sap = ch_malloc(sizeof(struct sockaddr_in)); if (*sap == NULL) { freeaddrinfo(res); goto errexit; } *(struct sockaddr_in *)*sap = *((struct sockaddr_in *)sai->ai_addr); break; default: *sap = NULL; break; } if (*sap != NULL) { (*sap)->sa_family = sai->ai_family; sap++; *sap = NULL; } } freeaddrinfo(res); #else int i, n = 1; struct in_addr in; struct hostent *he = NULL; if ( host == NULL ) { in.s_addr = htonl(INADDR_ANY); } else if ( !inet_aton( host, &in ) ) { he = gethostbyname( host ); if( he == NULL ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_get_listener_addresses: invalid host %s\n", host )); #else Debug( LDAP_DEBUG_ANY, "daemon: invalid host %s", host, 0, 0); #endif return -1; } for (n = 0; he->h_addr_list[n]; n++) ; } *sal = ch_malloc((n+1) * sizeof(void *)); if (*sal == NULL) { return -1; } sap = *sal; for ( i = 0; isa_family = AF_INET; ((struct sockaddr_in *)sap[i])->sin_port = htons(port); if (he) { AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) ); } else { AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) ); } } sap[i] = NULL; #endif } return 0; errexit: slap_free_listener_addresses(*sal); return -1; } static int slap_open_listener( const char* url, int *listeners, int *cur ) { int num, tmp, rc; Listener l; Listener *li; LDAPURLDesc *lud; unsigned short port; int err, addrlen = 0; struct sockaddr **sal, **psal; int socktype = SOCK_STREAM; /* default to COTS */ #ifdef LDAP_PF_LOCAL mode_t perms = S_IRWXU; int crit = 1; #endif rc = ldap_url_parse( url, &lud ); if( rc != LDAP_URL_SUCCESS ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slap_open_listener: listen URL \"%s\" parse error %d\n", url, rc )); #else Debug( LDAP_DEBUG_ANY, "daemon: listen URL \"%s\" parse error=%d\n", url, rc, 0 ); #endif return rc; } #ifndef HAVE_TLS if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_open_listener: TLS is not supported (%s)\n", url )); #else Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n", url, 0, 0 ); #endif ldap_free_urldesc( lud ); return -1; } if(! lud->lud_port ) { lud->lud_port = LDAP_PORT; } #else l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme ); if(! lud->lud_port ) { lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT; } #endif port = (unsigned short) lud->lud_port; tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme); if ( tmp == LDAP_PROTO_IPC ) { #ifdef LDAP_PF_LOCAL if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) { err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal); } else { err = slap_get_listener_addresses(lud->lud_host, 0, &sal); } if ( lud->lud_exts ) { err = get_url_perms( lud->lud_exts, &perms, &crit ); } #else #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_open_listener: URL scheme is not supported: %s\n", url )); #else Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s", url, 0, 0); #endif ldap_free_urldesc( lud ); return -1; #endif } else { #ifdef LDAP_CONNECTIONLESS l.sl_is_udp = ( tmp == LDAP_PROTO_UDP ); #endif if( lud->lud_host == NULL || lud->lud_host[0] == '\0' || strcmp(lud->lud_host, "*") == 0 ) { err = slap_get_listener_addresses(NULL, port, &sal); } else { err = slap_get_listener_addresses(lud->lud_host, port, &sal); } } ldap_free_urldesc( lud ); if ( err ) { return -1; } /* If we got more than one address returned, we need to make space * for it in the slap_listeners array. */ for ( num=0; sal[num]; num++ ); if ( num > 1 ) { *listeners += num-1; slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) ); } psal = sal; while ( *sal != NULL ) { switch( (*sal)->sa_family ) { case AF_INET: #ifdef LDAP_PF_INET6 case AF_INET6: #endif #ifdef LDAP_PF_LOCAL case AF_LOCAL: #endif break; default: sal++; continue; } #ifdef LDAP_CONNECTIONLESS if (l.sl_is_udp) socktype = SOCK_DGRAM; #endif l.sl_sd = socket( (*sal)->sa_family, socktype, 0); if ( l.sl_sd == AC_SOCKET_INVALID ) { int err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slap_open_listener: socket() failed errno=%d (%s)\n", err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "daemon: socket() failed errno=%d (%s)\n", err, sock_errstr(err), 0 ); #endif sal++; continue; } #ifndef HAVE_WINSOCK if ( l.sl_sd >= dtblsize ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slap_open_listener: listener descriptor %ld is too great %ld\n", (long)l.sl_sd, (long)dtblsize )); #else Debug( LDAP_DEBUG_ANY, "daemon: listener descriptor %ld is too great %ld\n", (long) l.sl_sd, (long) dtblsize, 0 ); #endif tcp_close( l.sl_sd ); sal++; continue; } #endif #ifdef LDAP_PF_LOCAL if ( (*sal)->sa_family == AF_LOCAL ) { unlink ( ((struct sockaddr_un *)*sal)->sun_path ); } else #endif { #ifdef SO_REUSEADDR /* enable address reuse */ tmp = 1; rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, sizeof(tmp) ); if ( rc == AC_SOCKET_ERROR ) { int err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) failed errno %d (%s)\n", (long)l.sl_sd, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n", (long) l.sl_sd, err, sock_errstr(err) ); #endif } #endif } switch( (*sal)->sa_family ) { case AF_INET: addrlen = sizeof(struct sockaddr_in); break; #ifdef LDAP_PF_INET6 case AF_INET6: addrlen = sizeof(struct sockaddr_in6); break; #endif #ifdef LDAP_PF_LOCAL case AF_LOCAL: addrlen = sizeof(struct sockaddr_un); break; #endif } if (bind(l.sl_sd, *sal, addrlen)) { err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_open_listener: bind(%ld) failed errno=%d (%s)\n", (long)l.sl_sd, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n", (long) l.sl_sd, err, sock_errstr(err) ); #endif tcp_close( l.sl_sd ); sal++; continue; } switch ( (*sal)->sa_family ) { #ifdef LDAP_PF_LOCAL case AF_LOCAL: { char *addr = ((struct sockaddr_un *)*sal)->sun_path; if ( chmod( addr, perms ) < 0 && crit ) { int err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n", (long)l.sl_sd, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)", (long) l.sl_sd, err, sock_errstr(err) ); #endif tcp_close( l.sl_sd ); slap_free_listener_addresses(psal); return -1; } l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") ); sprintf( l.sl_name, "PATH=%s", addr ); } break; #endif /* LDAP_PF_LOCAL */ case AF_INET: { char *s; #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP ) char addr[INET_ADDRSTRLEN]; inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr, addr, sizeof(addr) ); s = addr; #else s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr ); #endif port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port ); l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") ); sprintf( l.sl_name, "IP=%s:%d", s != NULL ? s : "unknown" , port ); } break; #ifdef LDAP_PF_INET6 case AF_INET6: { char addr[INET6_ADDRSTRLEN]; inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr, addr, sizeof addr); port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port ); l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") ); sprintf( l.sl_name, "IP=%s %d", addr, port ); } break; #endif /* LDAP_PF_INET6 */ default: #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_open_listener: unsupported address family (%d)\n", (int)(*sal)->sa_family )); #else Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n", (int) (*sal)->sa_family, 0, 0 ); #endif break; } AC_MEMCPY(&l.sl_sa, *sal, addrlen); l.sl_url = ch_strdup( url ); li = ch_malloc( sizeof( Listener ) ); *li = l; slap_listeners[*cur] = li; (*cur)++; sal++; } /* while ( *sal != NULL ) */ slap_free_listener_addresses(psal); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_RESULTS, "slap_open_listener: daemon initialized %s\n", l.sl_url )); #else Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n", l.sl_url, 0, 0 ); #endif return 0; } static int sockinit(void); static int sockdestroy(void); int slapd_daemon_init( const char *urls ) { int i, j, n, rc; char **u; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ARGS, "slapd_daemon_init: %s\n", urls ? urls : "" )); #else Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n", urls ? urls : "", 0, 0 ); #endif if( (rc = sockinit()) != 0 ) { return rc; } #ifdef HAVE_SYSCONF dtblsize = sysconf( _SC_OPEN_MAX ); #elif HAVE_GETDTABLESIZE dtblsize = getdtablesize(); #else dtblsize = FD_SETSIZE; #endif #ifdef FD_SETSIZE if(dtblsize > FD_SETSIZE) { dtblsize = FD_SETSIZE; } #endif /* !FD_SETSIZE */ /* open a pipe (or something equivalent connected to itself). * we write a byte on this fd whenever we catch a signal. The main * loop will be select'ing on this socket, and will wake up when * this byte arrives. */ if( (rc = lutil_pair( wake_sds )) < 0 ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slap_daemon_init: lutil_pair() failed rc=%d\n", rc )); #else Debug( LDAP_DEBUG_ANY, "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 ); #endif return rc; } FD_ZERO( &slap_daemon.sd_readers ); FD_ZERO( &slap_daemon.sd_writers ); if( urls == NULL ) { urls = "ldap:///"; } u = str2charray( urls, " " ); if( u == NULL || u[0] == NULL ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slap_daemon_init: no urls (%s) provided.\n", urls )); #else Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n", urls, 0, 0 ); #endif return -1; } for( i=0; u[i] != NULL; i++ ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slap_daemon_init: listen on %s\n.", u[i] )); #else Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n", u[i], 0, 0 ); #endif } if( i == 0 ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_daemon_init: no listeners to open (%s)\n", urls )); #else Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n", urls, 0, 0 ); #endif charray_free( u ); return -1; } #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slap_daemon_init: %d listeners to open...\n", i )); #else Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n", i, 0, 0 ); #endif slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) ); for(n = 0, j = 0; u[n]; n++ ) { if ( slap_open_listener( u[n], &i, &j ) ) { charray_free( u ); return -1; } } slap_listeners[j] = NULL; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slap_daemon_init: %d listeners opened\n", i )); #else Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n", i, 0, 0 ); #endif #ifdef HAVE_SLP slapd_slp_init( urls ); slapd_slp_reg(); #endif charray_free( u ); ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex ); return !i; } int slapd_daemon_destroy(void) { connections_destroy(); tcp_close( wake_sds[1] ); tcp_close( wake_sds[0] ); sockdestroy(); #ifdef HAVE_SLP slapd_slp_dereg(); slapd_slp_deinit(); #endif return 0; } static void close_listeners( int remove ) { int l; for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( remove ) slapd_remove( slap_listeners[l]->sl_sd, 0 ); if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) { #ifdef LDAP_PF_LOCAL if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) { unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path ); } #endif /* LDAP_PF_LOCAL */ slapd_close( slap_listeners[l]->sl_sd ); } if ( slap_listeners[l]->sl_url ) free ( slap_listeners[l]->sl_url ); if ( slap_listeners[l]->sl_name ) free ( slap_listeners[l]->sl_name ); free ( slap_listeners[l] ); slap_listeners[l] = NULL; } } static void * slapd_daemon_task( void *ptr ) { int l; time_t last_idle_check = 0; time( &starttime ); if ( global_idletimeout > 0 ) { last_idle_check = slap_get_time(); } for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue; #ifdef LDAP_CONNECTIONLESS /* Since this is connectionless, the data port is the * listening port. The listen() and accept() calls * are unnecessary. */ if ( slap_listeners[l]->sl_is_udp ) { slapd_add( slap_listeners[l]->sl_sd ); continue; } #endif if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) { int err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n", slap_listeners[l]->sl_url, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "daemon: listen(%s, 5) failed errno=%d (%s)\n", slap_listeners[l]->sl_url, err, sock_errstr(err) ); #endif return( (void*)-1 ); } slapd_add( slap_listeners[l]->sl_sd ); } #ifdef HAVE_NT_SERVICE_MANAGER if ( started_event != NULL ) { ldap_pvt_thread_cond_signal( &started_event ); } #endif /* initialization complete. Here comes the loop. */ while ( !slapd_shutdown ) { ber_socket_t i; int ns; int at; ber_socket_t nfds; #define SLAPD_EBADF_LIMIT 16 int ebadf = 0; int emfile = 0; #define SLAPD_IDLE_CHECK_LIMIT 4 time_t now; fd_set readfds; fd_set writefds; Sockaddr from; #if defined(SLAPD_RLOOKUPS) struct hostent *hp; #endif struct timeval zero; struct timeval *tvp; if( emfile ) { now = slap_get_time(); connections_timeout_idle( now ); } else if ( global_idletimeout > 0 ) { now = slap_get_time(); if ( difftime( last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) { connections_timeout_idle( now ); } } #ifdef SIGHUP if( slapd_gentle_shutdown ) { ber_socket_t active; if( slapd_gentle_shutdown == 1 ) { Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 ); close_listeners( 1 ); global_restrictops |= SLAP_RESTRICT_OP_WRITES; slapd_gentle_shutdown = 2; } ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); active = slap_daemon.sd_nactives; ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); if( active == 0 ) { slapd_shutdown = 2; break; } } #endif FD_ZERO( &writefds ); FD_ZERO( &readfds ); zero.tv_sec = 0; zero.tv_usec = 0; ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); #ifdef FD_SET_MANUAL_COPY for( s = 0; s < nfds; s++ ) { if(FD_ISSET( &slap_sd_readers, s )) { FD_SET( s, &readfds ); } if(FD_ISSET( &slap_sd_writers, s )) { FD_SET( s, &writefds ); } } #else AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) ); #endif assert(!FD_ISSET(wake_sds[0], &readfds)); FD_SET( wake_sds[0], &readfds ); for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue; if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds)) FD_SET( slap_listeners[l]->sl_sd, &readfds ); } #ifndef HAVE_WINSOCK nfds = slap_daemon.sd_nfds; #else nfds = dtblsize; #endif ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); at = ldap_pvt_thread_pool_backload(&connection_pool); #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS ) tvp = NULL; #else tvp = at ? &zero : NULL; #endif for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slapd_daemon_task: select: listen=%d active_threads=%d tvp=%s\n", slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" )); #else Debug( LDAP_DEBUG_CONNS, "daemon: select: listen=%d active_threads=%d tvp=%s\n", slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" ); #endif } switch(ns = select( nfds, &readfds, #ifdef HAVE_WINSOCK /* don't pass empty fd_set */ ( writefds.fd_count > 0 ? &writefds : NULL ), #else &writefds, #endif NULL, tvp )) { case -1: { /* failure - try again */ int err = sock_errno(); if( err == EBADF #ifdef WSAENOTSOCK /* you'd think this would be EBADF */ || err == WSAENOTSOCK #endif ) { if (++ebadf < SLAPD_EBADF_LIMIT) continue; } if( err != EINTR ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slapd_daemon_task: select failed (%d): %s\n", err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_CONNS, "daemon: select failed (%d): %s\n", err, sock_errstr(err), 0 ); #endif slapd_shutdown = 2; } } continue; case 0: /* timeout - let threads run */ ebadf = 0; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "slapd_daemon_task: select timeout - yielding\n" )); #else Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n", 0, 0, 0 ); #endif ldap_pvt_thread_yield(); continue; default: /* something happened - deal with it */ if( slapd_shutdown ) continue; ebadf = 0; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "slapd_daemon_task: activity on %d descriptors\n", ns )); #else Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n", ns, 0, 0 ); #endif /* FALL THRU */ } if( FD_ISSET( wake_sds[0], &readfds ) ) { char c[BUFSIZ]; tcp_read( wake_sds[0], c, sizeof(c) ); #ifdef NO_THREADS waking = 0; #endif continue; } for ( l = 0; slap_listeners[l] != NULL; l++ ) { ber_socket_t s; socklen_t len = sizeof(from); long id; slap_ssf_t ssf = 0; char *authid = NULL; char *dnsname = NULL; char *peeraddr; #ifdef LDAP_PF_LOCAL char peername[MAXPATHLEN + sizeof("PATH=")]; #elif defined(LDAP_PF_INET6) char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")]; #else char peername[sizeof("IP=255.255.255.255:65336")]; #endif /* LDAP_PF_LOCAL */ peername[0] = '\0'; if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue; if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) ) continue; #ifdef LDAP_CONNECTIONLESS if ( slap_listeners[l]->sl_is_udp ) { /* The first time we receive a query, we set this * up as a "connection". It remains open for the life * of the slapd. */ if ( slap_listeners[l]->sl_is_udp < 2 ) { id = connection_init( slap_listeners[l]->sl_sd, slap_listeners[l]->sl_url, "", "", slap_listeners[l]->sl_name, 2, ssf, authid ); slap_listeners[l]->sl_is_udp++; } continue; } #endif s = accept( slap_listeners[l]->sl_sd, (struct sockaddr *) &from, &len ); if ( s == AC_SOCKET_INVALID ) { int err = sock_errno(); #ifdef EMFILE if( err == EMFILE ) { emfile++; } else #endif #ifdef ENFILE if( err == ENFILE ) { emfile++; } else #endif { emfile=0; } if( emfile < 3 ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n", (long)slap_listeners[l]->sl_sd, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "daemon: accept(%ld) failed errno=%d (%s)\n", (long) slap_listeners[l]->sl_sd, err, sock_errstr(err) ); #endif } else { /* prevent busy loop */ # ifdef HAVE_USLEEP if( emfile % 4 == 3 ) usleep( 250 ); # else if( emfile % 8 == 7 ) sleep( 1 ); # endif } ldap_pvt_thread_yield(); continue; } emfile = 0; #ifndef HAVE_WINSOCK /* make sure descriptor number isn't too great */ if ( s >= dtblsize ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slapd_daemon_task: %ld beyond descriptor table size %ld\n", (long)s, (long)dtblsize )); #else Debug( LDAP_DEBUG_ANY, "daemon: %ld beyond descriptor table size %ld\n", (long) s, (long) dtblsize, 0 ); #endif slapd_close(s); ldap_pvt_thread_yield(); continue; } #endif #ifdef LDAP_DEBUG ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex ); /* newly accepted stream should not be in any of the FD SETS */ assert( !FD_ISSET( s, &slap_daemon.sd_actives) ); assert( !FD_ISSET( s, &slap_daemon.sd_readers) ); assert( !FD_ISSET( s, &slap_daemon.sd_writers) ); ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex ); #endif #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY ) #ifdef LDAP_PF_LOCAL /* for IPv4 and IPv6 sockets only */ if ( from.sa_addr.sa_family != AF_LOCAL ) #endif /* LDAP_PF_LOCAL */ { int rc; int tmp; #ifdef SO_KEEPALIVE /* enable keep alives */ tmp = 1; rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE, (char *) &tmp, sizeof(tmp) ); if ( rc == AC_SOCKET_ERROR ) { int err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE) failed errno=%d (%s)\n", (long)s, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "slapd(%ld): setsockopt(SO_KEEPALIVE) failed " "errno=%d (%s)\n", (long) s, err, sock_errstr(err) ); #endif } #endif #ifdef TCP_NODELAY /* enable no delay */ tmp = 1; rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY, (char *)&tmp, sizeof(tmp) ); if ( rc == AC_SOCKET_ERROR ) { int err = sock_errno(); #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slapd_daemon_task: setsockopt( %ld, TCP_NODELAY) failed errno=%d (%s)\n", (long)s, err, sock_errstr(err) )); #else Debug( LDAP_DEBUG_ANY, "slapd(%ld): setsockopt(TCP_NODELAY) failed " "errno=%d (%s)\n", (long) s, err, sock_errstr(err) ); #endif } #endif } #endif #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1, "slapd_daemon_task: new connection on %ld\n", (long)s )); #else Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n", (long) s, 0, 0 ); #endif switch ( from.sa_addr.sa_family ) { # ifdef LDAP_PF_LOCAL case AF_LOCAL: sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path ); ssf = LDAP_PVT_SASL_LOCAL_SSF; dnsname = "local"; break; #endif /* LDAP_PF_LOCAL */ # ifdef LDAP_PF_INET6 case AF_INET6: if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) { peeraddr = inet_ntoa( *((struct in_addr *) &from.sa_in6_addr.sin6_addr.s6_addr[12]) ); sprintf( peername, "IP=%s:%d", peeraddr != NULL ? peeraddr : "unknown", (unsigned) ntohs( from.sa_in6_addr.sin6_port ) ); } else { char addr[INET6_ADDRSTRLEN]; sprintf( peername, "IP=%s %d", inet_ntop( AF_INET6, &from.sa_in6_addr.sin6_addr, addr, sizeof addr) ? addr : "unknown", (unsigned) ntohs( from.sa_in6_addr.sin6_port ) ); } break; # endif /* LDAP_PF_INET6 */ case AF_INET: peeraddr = inet_ntoa( from.sa_in_addr.sin_addr ); sprintf( peername, "IP=%s:%d", peeraddr != NULL ? peeraddr : "unknown", (unsigned) ntohs( from.sa_in_addr.sin_port ) ); break; default: slapd_close(s); continue; } if ( ( from.sa_addr.sa_family == AF_INET ) #ifdef LDAP_PF_INET6 || ( from.sa_addr.sa_family == AF_INET6 ) #endif ) { #ifdef SLAPD_RLOOKUPS if ( use_reverse_lookup ) { # ifdef LDAP_PF_INET6 if ( from.sa_addr.sa_family == AF_INET6 ) hp = gethostbyaddr( (char *)&(from.sa_in6_addr.sin6_addr), sizeof(from.sa_in6_addr.sin6_addr), AF_INET6 ); else # endif /* LDAP_PF_INET6 */ hp = gethostbyaddr( (char *) &(from.sa_in_addr.sin_addr), sizeof(from.sa_in_addr.sin_addr), AF_INET ); dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL; } #else dnsname = NULL; #endif /* SLAPD_RLOOKUPS */ #ifdef HAVE_TCPD if ( !hosts_ctl("slapd", dnsname != NULL ? dnsname : STRING_UNKNOWN, peeraddr != NULL ? peeraddr : STRING_UNKNOWN, STRING_UNKNOWN )) { /* DENY ACCESS */ Statslog( LDAP_DEBUG_ANY, "fd=%ld host access from %s (%s) denied.\n", (long) s, dnsname != NULL ? dnsname : "unknown", peeraddr != NULL ? peeraddr : "unknown", 0, 0 ); slapd_close(s); continue; } #endif /* HAVE_TCPD */ } id = connection_init(s, slap_listeners[l]->sl_url, dnsname != NULL ? dnsname : "unknown", peername, slap_listeners[l]->sl_name, #ifdef HAVE_TLS slap_listeners[l]->sl_is_tls, #else 0, #endif ssf, authid ); if( authid ) ch_free(authid); if( id < 0 ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_INFO, "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n", (long)s, peername, slap_listeners[l]->sl_name )); #else Debug( LDAP_DEBUG_ANY, "daemon: connection_init(%ld, %s, %s) failed.\n", (long) s, peername, slap_listeners[l]->sl_name ); #endif slapd_close(s); continue; } Statslog( LDAP_DEBUG_STATS, "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n", id, (long) s, peername, slap_listeners[l]->sl_name, 0 ); slapd_add( s ); continue; } #ifdef LDAP_DEBUG #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "slapd_daemon_task: activity on " )); #else Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 ); #endif #ifdef HAVE_WINSOCK for ( i = 0; i < readfds.fd_count; i++ ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, " %d%s", readfds.fd_array[i], "r", 0 )); #else Debug( LDAP_DEBUG_CONNS, " %d%s", readfds.fd_array[i], "r", 0 ); #endif } for ( i = 0; i < writefds.fd_count; i++ ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, " %d%s", writefds.fd_array[i], "w" )); #else Debug( LDAP_DEBUG_CONNS, " %d%s", writefds.fd_array[i], "w", 0 ); #endif } #else for ( i = 0; i < nfds; i++ ) { int r, w; int is_listener = 0; for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( i == slap_listeners[l]->sl_sd ) { #ifdef LDAP_CONNECTIONLESS /* The listener is the data port. Don't * skip it. */ if (slap_listeners[l]->sl_is_udp) continue; #endif is_listener = 1; break; } } if ( is_listener ) { continue; } r = FD_ISSET( i, &readfds ); w = FD_ISSET( i, &writefds ); if ( r || w ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, " %d%s%s", i, r ? "r" : "", w ? "w" : "" )); #else Debug( LDAP_DEBUG_CONNS, " %d%s%s", i, r ? "r" : "", w ? "w" : "" ); #endif } } #endif #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "\n" )); #else Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 ); #endif #endif /* loop through the writers */ #ifdef HAVE_WINSOCK for ( i = 0; i < writefds.fd_count; i++ ) #else for ( i = 0; i < nfds; i++ ) #endif { ber_socket_t wd; int is_listener = 0; #ifdef HAVE_WINSOCK wd = writefds.fd_array[i]; #else if( ! FD_ISSET( i, &writefds ) ) { continue; } wd = i; #endif for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( i == slap_listeners[l]->sl_sd ) { #ifdef LDAP_CONNECTIONLESS if (slap_listeners[l]->sl_is_udp) continue; #endif is_listener = 1; break; } } if ( is_listener ) { continue; } #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "slapd_daemon_task: write active on %d\n", wd )); #else Debug( LDAP_DEBUG_CONNS, "daemon: write active on %d\n", wd, 0, 0 ); #endif /* * NOTE: it is possible that the connection was closed * and that the stream is now inactive. * connection_write() must valid the stream is still * active. */ if ( connection_write( wd ) < 0 ) { FD_CLR( (unsigned) wd, &readfds ); slapd_close( wd ); } } #ifdef HAVE_WINSOCK for ( i = 0; i < readfds.fd_count; i++ ) #else for ( i = 0; i < nfds; i++ ) #endif { ber_socket_t rd; int is_listener = 0; #ifdef HAVE_WINSOCK rd = readfds.fd_array[i]; #else if( ! FD_ISSET( i, &readfds ) ) { continue; } rd = i; #endif for ( l = 0; slap_listeners[l] != NULL; l++ ) { if ( rd == slap_listeners[l]->sl_sd ) { #ifdef LDAP_CONNECTIONLESS if (slap_listeners[l]->sl_is_udp) continue; #endif is_listener = 1; break; } } if ( is_listener ) { continue; } #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "slapd_daemon_task: read activity on %d\n", rd )); #else Debug ( LDAP_DEBUG_CONNS, "daemon: read activity on %d\n", rd, 0, 0 ); #endif /* * NOTE: it is possible that the connection was closed * and that the stream is now inactive. * connection_read() must valid the stream is still * active. */ if ( connection_read( rd ) < 0 ) { slapd_close( rd ); } } ldap_pvt_thread_yield(); } if( slapd_shutdown == 1 ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slapd_daemon_task: shutdown requested and initiated.\n")); #else Debug( LDAP_DEBUG_TRACE, "daemon: shutdown requested and initiated.\n", 0, 0, 0 ); #endif } else if ( slapd_shutdown == 2 ) { #ifdef HAVE_NT_SERVICE_MANAGER #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slapd_daemon_task: shutdown initiated by Service Manager.\n")); #else Debug( LDAP_DEBUG_TRACE, "daemon: shutdown initiated by Service Manager.\n", 0, 0, 0); #endif #else /* !HAVE_NT_SERVICE_MANAGER */ #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slapd_daemon_task: abnormal condition, shutdown initiated.\n" )); #else Debug( LDAP_DEBUG_TRACE, "daemon: abnormal condition, shutdown initiated.\n", 0, 0, 0 ); #endif #endif /* !HAVE_NT_SERVICE_MANAGER */ } else { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slapd_daemon_task: no active streams, shutdown initiated.\n" )); #else Debug( LDAP_DEBUG_TRACE, "daemon: no active streams, shutdown initiated.\n", 0, 0, 0 ); #endif } if( slapd_gentle_shutdown != 2 ) close_listeners ( 0 ); free ( slap_listeners ); slap_listeners = NULL; #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n", ldap_pvt_thread_pool_backload(&connection_pool) )); #else Debug( LDAP_DEBUG_ANY, "slapd shutdown: waiting for %d threads to terminate\n", ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 ); #endif ldap_pvt_thread_pool_destroy(&connection_pool, 1); return NULL; } int slapd_daemon( void ) { int rc; connections_init(); #define SLAPD_LISTENER_THREAD 1 #if defined( SLAPD_LISTENER_THREAD ) { ldap_pvt_thread_t listener_tid; /* listener as a separate THREAD */ rc = ldap_pvt_thread_create( &listener_tid, 0, slapd_daemon_task, NULL ); if ( rc != 0 ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_ERR, "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n", rc )); #else Debug( LDAP_DEBUG_ANY, "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 ); #endif return rc; } /* wait for the listener thread to complete */ ldap_pvt_thread_join( listener_tid, (void *) NULL ); } #else /* experimental code */ slapd_daemon_task( NULL ); #endif return 0; } int sockinit(void) { #if defined( HAVE_WINSOCK2 ) WORD wVersionRequested; WSADATA wsaData; int err; wVersionRequested = MAKEWORD( 2, 0 ); err = WSAStartup( wVersionRequested, &wsaData ); if ( err != 0 ) { /* Tell the user that we couldn't find a usable */ /* WinSock DLL. */ return -1; } /* Confirm that the WinSock DLL supports 2.0.*/ /* Note that if the DLL supports versions greater */ /* than 2.0 in addition to 2.0, it will still return */ /* 2.0 in wVersion since that is the version we */ /* requested. */ if ( LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 0 ) { /* Tell the user that we couldn't find a usable */ /* WinSock DLL. */ WSACleanup(); return -1; } /* The WinSock DLL is acceptable. Proceed. */ #elif defined( HAVE_WINSOCK ) WSADATA wsaData; if ( WSAStartup( 0x0101, &wsaData ) != 0 ) { return -1; } #endif return 0; } int sockdestroy(void) { #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK ) WSACleanup(); #endif return 0; } RETSIGTYPE slap_sig_shutdown( int sig ) { #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slap_sig_shutdown: signal %d\n", sig )); #else Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0); #endif /* * If the NT Service Manager is controlling the server, we don't * want SIGBREAK to kill the server. For some strange reason, * SIGBREAK is generated when a user logs out. */ #if HAVE_NT_SERVICE_MANAGER && SIGBREAK if (is_NT_Service && sig == SIGBREAK) #ifdef NEW_LOGGING LDAP_LOG(( "connection", LDAP_LEVEL_CRIT, "slap_sig_shutdown: SIGBREAK ignored.\n" )); #else Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n", 0, 0, 0); #endif else #endif #ifdef SIGHUP if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) slapd_gentle_shutdown = 1; else #endif slapd_shutdown = 1; WAKE_LISTENER(1); /* reinstall self */ (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown ); } RETSIGTYPE slap_sig_wake( int sig ) { WAKE_LISTENER(1); /* reinstall self */ (void) SIGNAL_REINSTALL( sig, slap_sig_wake ); } void slapd_add_internal(ber_socket_t s) { slapd_add(s); } Listener ** slapd_get_listeners(void) { return slap_listeners; }