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 */
#if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
/*
* use safe defaults
*/
int crit = 1;
#endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
rc = ldap_url_parse( url, &lud );
if( rc != LDAP_URL_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, ERR,
"slap_open_listener: listen URL \"%s\" parse error %d\n",
url, rc , 0 );
#else
Debug( LDAP_DEBUG_ANY,
"daemon: listen URL \"%s\" parse error=%d\n",
url, rc, 0 );
#endif
return rc;
}
l.sl_url.bv_val = NULL;
l.sl_is_mute = 0;
#ifndef HAVE_TLS
if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_open_listener: TLS is not supported (%s)\n", url, 0, 0 );
#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);
}
#else
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_open_listener: URL scheme is not supported: %s\n", url, 0, 0 );
#else
Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
url, 0, 0);
#endif
ldap_free_urldesc( lud );
return -1;
#endif
} else {
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);
}
}
#ifdef LDAP_CONNECTIONLESS
l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
#endif
#if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
if ( lud->lud_exts ) {
err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
} else {
l.sl_perms = S_IRWXU;
}
#endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
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, ERR,
"slap_open_listener: socket() failed errno=%d (%s)\n",
err, sock_errstr(err), 0 );
#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, ERR,
"slap_open_listener: listener descriptor %ld is too "
"great %ld\n", (long)l.sl_sd, (long)dtblsize, 0 );
#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, 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:
#ifdef IPV6_V6ONLY
/* Try to use IPv6 sockets for IPv6 only */
tmp = 1;
rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
(char *) &tmp, sizeof(tmp) );
if ( rc == AC_SOCKET_ERROR ) {
int err = sock_errno();
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
(long)l.sl_sd, err, sock_errstr(err) );
#else
Debug( LDAP_DEBUG_ANY,
"slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
(long) l.sl_sd, err, sock_errstr(err) );
#endif
}
#endif
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, 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, l.sl_perms ) < 0 && crit ) {
int err = sock_errno();
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, 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.bv_len = strlen(addr) + sizeof("PATH=") - 1;
l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
"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.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
"IP=%s:%d",
s != NULL ? s : SLAP_STRING_UNKNOWN, port );
l.sl_name.bv_len = strlen( l.sl_name.bv_val );
} 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.bv_len = strlen(addr) + sizeof("IP= 65535");
l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
addr, port );
l.sl_name.bv_len = strlen( l.sl_name.bv_val );
} break;
#endif /* LDAP_PF_INET6 */
default:
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, INFO,
"slap_open_listener: unsupported address family (%d)\n",
(int)(*sal)->sa_family, 0, 0 );
#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);
ber_str2bv( url, 0, 1, &l.sl_url);
li = ch_malloc( sizeof( Listener ) );
*li = l;
slap_listeners[*cur] = li;
(*cur)++;
sal++;
} /* while ( *sal != NULL ) */
slap_free_listener_addresses(psal);
if ( l.sl_url.bv_val == NULL )
{
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, RESULTS,
"slap_open_listener: failed on %s\n", url, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"slap_open_listener: failed on %s\n", url, 0, 0 );
#endif
return -1;
}
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, RESULTS,
"slap_open_listener: daemon initialized %s\n",
l.sl_url.bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
l.sl_url.bv_val, 0, 0 );
#endif
return 0;
}
static long send_ldap_ber(
Operation *op,
BerElement *ber )
{
Connection *conn = op->o_conn;
ber_len_t bytes;
long ret = 0;
ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
/* write only one pdu at a time - wait til it's our turn */
ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
conn->c_writers < 0 ) {
ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
return 0;
}
conn->c_writers++;
while ( conn->c_writers > 0 && conn->c_writing ) {
ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
}
/* connection was closed under us */
if ( conn->c_writers < 0 ) {
/* we're the last waiter, let the closer continue */
if ( conn->c_writers == -1 )
ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
conn->c_writers++;
ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
return 0;
}
/* Our turn */
conn->c_writing = 1;
/* write the pdu */
while( 1 ) {
int err;
if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
ret = bytes;
break;
}
err = sock_errno();
/*
* we got an error. if it's ewouldblock, we need to
* wait on the socket being writable. otherwise, figure
* it's a hard error and return.
*/
Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
err, sock_errstr(err) );
if ( err != EWOULDBLOCK && err != EAGAIN ) {
conn->c_writers--;
conn->c_writing = 0;
ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
connection_closing( conn, "connection lost on write" );
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
return -1;
}
/* wait for socket to be write-ready */
slap_writewait_play( op );
ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex );
conn->c_writewaiter = 1;
slapd_set_write( conn->c_sd, 2 );
ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
ldap_pvt_thread_pool_idle( &connection_pool );
ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
conn->c_writewaiter = 0;
ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
ldap_pvt_thread_pool_unidle( &connection_pool );
ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
if ( conn->c_writers < 0 ) {
ret = 0;
break;
}
}
conn->c_writing = 0;
if ( conn->c_writers < 0 ) {
conn->c_writers++;
if ( !conn->c_writers )
ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
} else {
conn->c_writers--;
ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
}
ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
return ret;
}
static void *
slapd_daemon_task(
void *ptr
)
{
int l;
time_t last_idle_check = 0;
struct timeval idle;
time( &starttime );
#define SLAPD_IDLE_CHECK_LIMIT 4
if ( global_idletimeout > 0 ) {
last_idle_check = slap_get_time();
/* Set the select timeout.
* Don't just truncate, preserve the fractions of
* seconds to prevent sleeping for zero time.
*/
idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
} else {
idle.tv_sec = 0;
idle.tv_usec = 0;
}
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 LDAP_PF_INET6
/* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
* we are already listening to in6addr_any, then we want to ignore
* this and continue.
*/
if ( err == EADDRINUSE ) {
int i;
struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
struct sockaddr_in6 sa6;
if ( sa.sin_family == AF_INET &&
sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
for ( i = 0 ; i < l; i++ ) {
sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
if ( sa6.sin6_family == AF_INET6 &&
!memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
break;
}
if ( i < l ) {
/* We are already listening to in6addr_any */
#ifdef NEW_LOGGING
LDAP_LOG(CONNECTION, WARNING,
"slapd_daemon_task: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n", 0, 0, 0 );
#else
Debug( LDAP_DEBUG_CONNS,
"daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
0, 0, 0 );
#endif
slapd_close( slap_listeners[l]->sl_sd );
slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
continue;
}
}
}
#endif
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, ERR,
"slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
slap_listeners[l]->sl_url.bv_val, err, sock_errstr(err) );
#else
Debug( LDAP_DEBUG_ANY,
"daemon: listen(%s, 5) failed errno=%d (%s)\n",
slap_listeners[l]->sl_url.bv_val, 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;
time_t now;
fd_set readfds;
fd_set writefds;
Sockaddr from;
struct timeval tv;
struct timeval *tvp;
now = slap_get_time();
if( ( global_idletimeout > 0 ) &&
difftime( last_idle_check +
global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
connections_timeout_idle( now );
last_idle_check = now;
}
tv = idle;
#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 );
at = 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 ( slap_listeners[l]->sl_is_mute )
FD_CLR( slap_listeners[l]->sl_sd, &readfds );
else
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
if ( global_idletimeout && slap_daemon.sd_nactives )
at = 1;
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
if ( !at )
at = ldap_pvt_thread_pool_backload(&connection_pool);
#if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
tvp = NULL;
#else
tvp = at ? &tv : NULL;
#endif
for ( l = 0; slap_listeners[l] != NULL; l++ ) {
if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
slap_listeners[l]->sl_is_mute )
continue;
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, DETAIL1,
"slapd_daemon_task: select: listen=%d "
"active_threads=%d tvp=%s\n",
slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "idle" );
#else
Debug( LDAP_DEBUG_CONNS,
"daemon: select: listen=%d active_threads=%d tvp=%s\n",
slap_listeners[l]->sl_sd, at,
tvp == NULL ? "NULL" : "idle" );
#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, INFO,
"slapd_daemon_task: select failed (%d): %s\n",
err, sock_errstr(err), 0 );
#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, DETAIL2,
"slapd_daemon_task: select timeout - yielding\n", 0, 0, 0 );
#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, DETAIL2,
"slapd_daemon_task: activity on %d descriptors\n", ns, 0, 0 );
#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) );
#if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
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;
#ifdef SLAPD_RLOOKUPS
char hbuf[NI_MAXHOST];
#endif
char *dnsname = NULL;
char *peeraddr = NULL;
#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], "", "",
2, ssf, authid );
slap_listeners[l]->sl_is_udp++;
}
continue;
}
#endif
/* Don't need to look at this in the data loops */
FD_CLR( slap_listeners[l]->sl_sd, &readfds );
FD_CLR( slap_listeners[l]->sl_sd, &writefds );
s = accept( slap_listeners[l]->sl_sd,
(struct sockaddr *) &from, &len );
if ( s == AC_SOCKET_INVALID ) {
int err = sock_errno();
if(
#ifdef EMFILE
err == EMFILE ||
#endif
#ifdef ENFILE
err == ENFILE ||
#endif
0 )
{
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
emfile++;
/* Stop listening until an existing session closes */
slap_listeners[l]->sl_is_mute = 1;
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
}
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, 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
ldap_pvt_thread_yield();
continue;
}
#ifndef HAVE_WINSOCK
/* make sure descriptor number isn't too great */
if ( s >= dtblsize ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, ERR,
"slapd_daemon_task: %ld beyond descriptor table size %ld\n",
(long)s, (long)dtblsize, 0 );
#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, 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, 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, DETAIL1,
"slapd_daemon_task: new connection on %ld\n", (long)s, 0, 0 );
#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;
{
uid_t uid;
gid_t gid;
if( getpeereid( s, &uid, &gid ) == 0 ) {
authid = ch_malloc(
sizeof("uidnumber=4294967295+gidnumber=4294967295,"
"cn=peercred,cn=external,cn=auth"));
sprintf(authid, "uidnumber=%d+gidnumber=%d,"
"cn=peercred,cn=external,cn=auth",
(int) uid, (int) gid);
}
}
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 : SLAP_STRING_UNKNOWN,
(unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
} else {
char addr[INET6_ADDRSTRLEN];
peeraddr = (char *) inet_ntop( AF_INET6,
&from.sa_in6_addr.sin6_addr,
addr, sizeof addr );
sprintf( peername, "IP=%s %d",
peeraddr != NULL ? peeraddr : SLAP_STRING_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 : SLAP_STRING_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 ) {
char *herr;
if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
sizeof(hbuf), &herr ) == 0) {
ldap_pvt_str2lower( hbuf );
dnsname = hbuf;
}
}
#else
dnsname = NULL;
#endif /* SLAPD_RLOOKUPS */
#ifdef HAVE_TCPD
if ( !hosts_ctl("slapd",
dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
SLAP_STRING_UNKNOWN ))
{
/* DENY ACCESS */
Statslog( LDAP_DEBUG_STATS,
"fd=%ld DENIED from %s (%s)\n",
(long) s,
dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
0, 0 );
slapd_close(s);
continue;
}
#endif /* HAVE_TCPD */
}
id = connection_init(s,
slap_listeners[l],
dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
peername,
#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, INFO,
"slapd_daemon_task: "
"connection_init(%ld, %s, %s) "
"failed.\n",
(long)s, peername,
slap_listeners[l]->sl_name.bv_val );
#else
Debug( LDAP_DEBUG_ANY,
"daemon: connection_init(%ld, %s, %s) "
"failed.\n",
(long) s,
peername,
slap_listeners[l]->sl_name.bv_val );
#endif
slapd_close(s);
continue;
}
Statslog( LDAP_DEBUG_STATS,
"conn=%ld fd=%ld ACCEPT from %s (%s)\n",
id, (long) s,
peername,
slap_listeners[l]->sl_name.bv_val,
0 );
slapd_add( s );
continue;
}
#ifdef LDAP_DEBUG
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, DETAIL2,
"slapd_daemon_task: activity on ", 0, 0, 0 );
#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, DETAIL2,
" %d%s", readfds.fd_array[i], "r", 0, 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, DETAIL2,
" %d%s", writefds.fd_array[i], "w" , 0 );
#else
Debug( LDAP_DEBUG_CONNS, " %d%s",
writefds.fd_array[i], "w", 0 );
#endif
}
#else
for ( i = 0; i < nfds; i++ ) {
int r, w;
r = FD_ISSET( i, &readfds );
w = FD_ISSET( i, &writefds );
if ( r || w ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, 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, DETAIL2, "\n", 0, 0, 0 );
#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;
#ifdef HAVE_WINSOCK
wd = writefds.fd_array[i];
#else
if( ! FD_ISSET( i, &writefds ) ) {
continue;
}
wd = i;
#endif
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, DETAIL2,
"slapd_daemon_task: write active on %d\n", wd, 0, 0 );
#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;
#ifdef HAVE_WINSOCK
rd = readfds.fd_array[i];
#else
if( ! FD_ISSET( i, &readfds ) ) {
continue;
}
rd = i;
#endif
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, DETAIL2,
"slapd_daemon_task: read activity on %d\n", rd, 0, 0 );
#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, CRIT,
"slapd_daemon_task: shutdown requested and initiated.\n", 0, 0, 0 );
#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, CRIT,
"slapd_daemon_task: shutdown initiated by Service Manager.\n",
0, 0, 0);
#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, CRIT,
"slapd_daemon_task: abnormal condition, "
"shutdown initiated.\n", 0, 0, 0 );
#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, CRIT,
"slapd_daemon_task: no active streams, shutdown initiated.\n",
0, 0, 0 );
#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;
if( !slapd_gentle_shutdown ) {
connections_shutdown();
}
#ifdef NEW_LOGGING
LDAP_LOG( CONNECTION, CRIT,
"slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
#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;
}