mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-27 03:20:22 +08:00
1152 lines
23 KiB
C
1152 lines
23 KiB
C
/* os-ip.c -- platform-specific TCP & UDP related code */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2014 The OpenLDAP Foundation.
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* Portions Copyright 1999 Lars Uffmann.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* Portions Copyright (c) 1995 Regents of the University of Michigan.
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* All rights reserved.
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*/
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/* Significant additional contributors include:
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* Lars Uffman
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/errno.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include <ac/unistd.h>
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#ifdef HAVE_IO_H
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#include <io.h>
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#endif /* HAVE_IO_H */
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#include "ldap-int.h"
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#if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
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# ifdef LDAP_PF_INET6
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int ldap_int_inet4or6 = AF_UNSPEC;
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# else
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int ldap_int_inet4or6 = AF_INET;
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# endif
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#endif
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#ifdef LDAP_DEBUG
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#define osip_debug(ld,fmt,arg1,arg2,arg3) \
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do { \
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ldap_log_printf(NULL, LDAP_DEBUG_TRACE, fmt, arg1, arg2, arg3); \
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} while(0)
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#else
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#define osip_debug(ld,fmt,arg1,arg2,arg3) ((void)0)
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#endif /* LDAP_DEBUG */
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static void
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ldap_pvt_set_errno(int err)
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{
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sock_errset(err);
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}
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int
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ldap_int_timeval_dup( struct timeval **dest, const struct timeval *src )
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{
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struct timeval *new;
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assert( dest != NULL );
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if (src == NULL) {
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*dest = NULL;
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return 0;
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}
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new = (struct timeval *) LDAP_MALLOC(sizeof(struct timeval));
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if( new == NULL ) {
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*dest = NULL;
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return 1;
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}
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AC_MEMCPY( (char *) new, (const char *) src, sizeof(struct timeval));
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*dest = new;
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return 0;
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}
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static int
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ldap_pvt_ndelay_on(LDAP *ld, int fd)
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{
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osip_debug(ld, "ldap_ndelay_on: %d\n",fd,0,0);
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return ber_pvt_socket_set_nonblock( fd, 1 );
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}
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static int
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ldap_pvt_ndelay_off(LDAP *ld, int fd)
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{
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osip_debug(ld, "ldap_ndelay_off: %d\n",fd,0,0);
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return ber_pvt_socket_set_nonblock( fd, 0 );
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}
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static ber_socket_t
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ldap_int_socket(LDAP *ld, int family, int type )
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{
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ber_socket_t s = socket(family, type, 0);
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osip_debug(ld, "ldap_new_socket: %d\n",s,0,0);
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#ifdef FD_CLOEXEC
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fcntl(s, F_SETFD, FD_CLOEXEC);
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#endif
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return ( s );
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}
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static int
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ldap_pvt_close_socket(LDAP *ld, int s)
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{
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osip_debug(ld, "ldap_close_socket: %d\n",s,0,0);
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return tcp_close(s);
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}
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static int
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ldap_int_prepare_socket(LDAP *ld, int s, int proto )
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{
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osip_debug( ld, "ldap_prepare_socket: %d\n", s, 0, 0 );
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#if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
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if ( proto == LDAP_PROTO_TCP ) {
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int dummy = 1;
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#ifdef SO_KEEPALIVE
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if ( setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
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(char*) &dummy, sizeof(dummy) ) == AC_SOCKET_ERROR )
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{
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osip_debug( ld, "ldap_prepare_socket: "
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"setsockopt(%d, SO_KEEPALIVE) failed (ignored).\n",
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s, 0, 0 );
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}
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if ( ld->ld_options.ldo_keepalive_idle > 0 )
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{
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#ifdef TCP_KEEPIDLE
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if ( setsockopt( s, IPPROTO_TCP, TCP_KEEPIDLE,
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(void*) &ld->ld_options.ldo_keepalive_idle,
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sizeof(ld->ld_options.ldo_keepalive_idle) ) == AC_SOCKET_ERROR )
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{
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osip_debug( ld, "ldap_prepare_socket: "
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"setsockopt(%d, TCP_KEEPIDLE) failed (ignored).\n",
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s, 0, 0 );
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}
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#else
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osip_debug( ld, "ldap_prepare_socket: "
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"sockopt TCP_KEEPIDLE not supported on this system.\n",
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0, 0, 0 );
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#endif /* TCP_KEEPIDLE */
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}
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if ( ld->ld_options.ldo_keepalive_probes > 0 )
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{
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#ifdef TCP_KEEPCNT
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if ( setsockopt( s, IPPROTO_TCP, TCP_KEEPCNT,
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(void*) &ld->ld_options.ldo_keepalive_probes,
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sizeof(ld->ld_options.ldo_keepalive_probes) ) == AC_SOCKET_ERROR )
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{
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osip_debug( ld, "ldap_prepare_socket: "
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"setsockopt(%d, TCP_KEEPCNT) failed (ignored).\n",
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s, 0, 0 );
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}
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#else
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osip_debug( ld, "ldap_prepare_socket: "
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"sockopt TCP_KEEPCNT not supported on this system.\n",
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0, 0, 0 );
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#endif /* TCP_KEEPCNT */
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}
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if ( ld->ld_options.ldo_keepalive_interval > 0 )
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{
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#ifdef TCP_KEEPINTVL
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if ( setsockopt( s, IPPROTO_TCP, TCP_KEEPINTVL,
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(void*) &ld->ld_options.ldo_keepalive_interval,
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sizeof(ld->ld_options.ldo_keepalive_interval) ) == AC_SOCKET_ERROR )
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{
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osip_debug( ld, "ldap_prepare_socket: "
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"setsockopt(%d, TCP_KEEPINTVL) failed (ignored).\n",
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s, 0, 0 );
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}
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#else
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osip_debug( ld, "ldap_prepare_socket: "
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"sockopt TCP_KEEPINTVL not supported on this system.\n",
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0, 0, 0 );
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#endif /* TCP_KEEPINTVL */
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}
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#endif /* SO_KEEPALIVE */
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#ifdef TCP_NODELAY
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if ( setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
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(char*) &dummy, sizeof(dummy) ) == AC_SOCKET_ERROR )
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{
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osip_debug( ld, "ldap_prepare_socket: "
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"setsockopt(%d, TCP_NODELAY) failed (ignored).\n",
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s, 0, 0 );
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}
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#endif /* TCP_NODELAY */
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}
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#endif /* SO_KEEPALIVE || TCP_NODELAY */
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return 0;
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}
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#ifndef HAVE_WINSOCK
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#undef TRACE
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#define TRACE do { \
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osip_debug(ld, \
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"ldap_is_socket_ready: error on socket %d: errno: %d (%s)\n", \
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s, \
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errno, \
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sock_errstr(errno) ); \
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} while( 0 )
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/*
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* check the socket for errors after select returned.
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*/
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static int
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ldap_pvt_is_socket_ready(LDAP *ld, int s)
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{
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osip_debug(ld, "ldap_is_sock_ready: %d\n",s,0,0);
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#if defined( notyet ) /* && defined( SO_ERROR ) */
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{
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int so_errno;
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ber_socklen_t dummy = sizeof(so_errno);
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if ( getsockopt( s, SOL_SOCKET, SO_ERROR, &so_errno, &dummy )
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== AC_SOCKET_ERROR )
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{
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return -1;
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}
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if ( so_errno ) {
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ldap_pvt_set_errno(so_errno);
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TRACE;
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return -1;
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}
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return 0;
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}
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#else
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{
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/* error slippery */
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#ifdef LDAP_PF_INET6
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struct sockaddr_storage sin;
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#else
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struct sockaddr_in sin;
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#endif
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char ch;
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ber_socklen_t dummy = sizeof(sin);
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if ( getpeername( s, (struct sockaddr *) &sin, &dummy )
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== AC_SOCKET_ERROR )
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{
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/* XXX: needs to be replace with ber_stream_read() */
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(void)read(s, &ch, 1);
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TRACE;
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return -1;
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}
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return 0;
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}
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#endif
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return -1;
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}
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#undef TRACE
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#endif /* HAVE_WINSOCK */
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/* NOTE: this is identical to analogous code in os-local.c */
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int
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ldap_int_poll(
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LDAP *ld,
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ber_socket_t s,
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struct timeval *tvp,
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int wr )
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{
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int rc;
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osip_debug(ld, "ldap_int_poll: fd: %d tm: %ld\n",
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s, tvp ? tvp->tv_sec : -1L, 0);
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#ifdef HAVE_POLL
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{
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struct pollfd fd;
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int timeout = INFTIM;
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short event = wr ? POLL_WRITE : POLL_READ;
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fd.fd = s;
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fd.events = event;
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if ( tvp != NULL ) {
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timeout = TV2MILLISEC( tvp );
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}
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do {
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fd.revents = 0;
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rc = poll( &fd, 1, timeout );
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} while ( rc == AC_SOCKET_ERROR && errno == EINTR &&
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LDAP_BOOL_GET( &ld->ld_options, LDAP_BOOL_RESTART ) );
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if ( rc == AC_SOCKET_ERROR ) {
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return rc;
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}
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if ( timeout == 0 && rc == 0 ) {
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return -2;
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}
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if ( fd.revents & event ) {
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if ( ldap_pvt_is_socket_ready( ld, s ) == -1 ) {
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return -1;
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}
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if ( ldap_pvt_ndelay_off( ld, s ) == -1 ) {
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return -1;
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}
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return 0;
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}
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}
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#else
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{
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fd_set wfds, *z = NULL;
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#ifdef HAVE_WINSOCK
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fd_set efds;
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#endif
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struct timeval tv = { 0 };
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#if defined( FD_SETSIZE ) && !defined( HAVE_WINSOCK )
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if ( s >= FD_SETSIZE ) {
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rc = AC_SOCKET_ERROR;
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tcp_close( s );
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ldap_pvt_set_errno( EMFILE );
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return rc;
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}
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#endif
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if ( tvp != NULL ) {
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tv = *tvp;
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}
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do {
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FD_ZERO(&wfds);
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FD_SET(s, &wfds );
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#ifdef HAVE_WINSOCK
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FD_ZERO(&efds);
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FD_SET(s, &efds );
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#endif
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rc = select( ldap_int_tblsize, z, &wfds,
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#ifdef HAVE_WINSOCK
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&efds,
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#else
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z,
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#endif
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tvp ? &tv : NULL );
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} while ( rc == AC_SOCKET_ERROR && errno == EINTR &&
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LDAP_BOOL_GET( &ld->ld_options, LDAP_BOOL_RESTART ) );
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if ( rc == AC_SOCKET_ERROR ) {
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return rc;
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}
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if ( rc == 0 && tvp && tvp->tv_sec == 0 && tvp->tv_usec == 0 ) {
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return -2;
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}
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#ifdef HAVE_WINSOCK
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/* This means the connection failed */
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if ( FD_ISSET(s, &efds) ) {
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int so_errno;
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ber_socklen_t dummy = sizeof(so_errno);
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if ( getsockopt( s, SOL_SOCKET, SO_ERROR,
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(char *) &so_errno, &dummy ) == AC_SOCKET_ERROR || !so_errno )
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{
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/* impossible */
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so_errno = WSAGetLastError();
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}
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ldap_pvt_set_errno( so_errno );
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osip_debug(ld, "ldap_int_poll: error on socket %d: "
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"errno: %d (%s)\n", s, errno, sock_errstr( errno ));
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return -1;
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}
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#endif
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if ( FD_ISSET(s, &wfds) ) {
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#ifndef HAVE_WINSOCK
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if ( ldap_pvt_is_socket_ready( ld, s ) == -1 ) {
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return -1;
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}
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#endif
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if ( ldap_pvt_ndelay_off(ld, s) == -1 ) {
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return -1;
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}
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return 0;
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}
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}
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#endif
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osip_debug(ld, "ldap_int_poll: timed out\n",0,0,0);
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ldap_pvt_set_errno( ETIMEDOUT );
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return -1;
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}
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static int
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ldap_pvt_connect(LDAP *ld, ber_socket_t s,
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struct sockaddr *sin, ber_socklen_t addrlen,
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int async)
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{
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int rc, err;
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struct timeval tv, *opt_tv = NULL;
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#ifdef LDAP_CONNECTIONLESS
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/* We could do a connect() but that would interfere with
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* attempts to poll a broadcast address
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*/
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if (LDAP_IS_UDP(ld)) {
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if (ld->ld_options.ldo_peer)
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ldap_memfree(ld->ld_options.ldo_peer);
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ld->ld_options.ldo_peer=ldap_memcalloc(1, sizeof(struct sockaddr_storage));
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AC_MEMCPY(ld->ld_options.ldo_peer,sin,addrlen);
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return ( 0 );
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}
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#endif
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if ( ld->ld_options.ldo_tm_net.tv_sec >= 0 ) {
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tv = ld->ld_options.ldo_tm_net;
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opt_tv = &tv;
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}
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osip_debug(ld, "ldap_pvt_connect: fd: %d tm: %ld async: %d\n",
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s, opt_tv ? tv.tv_sec : -1L, async);
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if ( opt_tv && ldap_pvt_ndelay_on(ld, s) == -1 )
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return ( -1 );
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do{
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osip_debug(ld, "attempting to connect: \n", 0, 0, 0);
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if ( connect(s, sin, addrlen) != AC_SOCKET_ERROR ) {
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osip_debug(ld, "connect success\n", 0, 0, 0);
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if ( opt_tv && ldap_pvt_ndelay_off(ld, s) == -1 )
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return ( -1 );
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return ( 0 );
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}
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err = sock_errno();
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osip_debug(ld, "connect errno: %d\n", err, 0, 0);
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} while(err == EINTR &&
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LDAP_BOOL_GET( &ld->ld_options, LDAP_BOOL_RESTART ));
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if ( err != EINPROGRESS && err != EWOULDBLOCK ) {
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return ( -1 );
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}
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if ( async ) {
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/* caller will call ldap_int_poll() as appropriate? */
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return ( -2 );
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}
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rc = ldap_int_poll( ld, s, opt_tv, 1 );
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osip_debug(ld, "ldap_pvt_connect: %d\n", rc, 0, 0);
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return rc;
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}
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|
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#ifndef HAVE_INET_ATON
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int
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ldap_pvt_inet_aton( const char *host, struct in_addr *in)
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{
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unsigned long u = inet_addr( host );
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#ifdef INADDR_NONE
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if ( u == INADDR_NONE ) return 0;
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#endif
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if ( u == 0xffffffffUL || u == (unsigned long) -1L ) return 0;
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in->s_addr = u;
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return 1;
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}
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|
#endif
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int
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ldap_int_connect_cbs(LDAP *ld, Sockbuf *sb, ber_socket_t *s, LDAPURLDesc *srv, struct sockaddr *addr)
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|
{
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struct ldapoptions *lo;
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ldaplist *ll;
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ldap_conncb *cb;
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int rc;
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ber_sockbuf_ctrl( sb, LBER_SB_OPT_SET_FD, s );
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/* Invoke all handle-specific callbacks first */
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lo = &ld->ld_options;
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for (ll = lo->ldo_conn_cbs; ll; ll = ll->ll_next) {
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cb = ll->ll_data;
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rc = cb->lc_add( ld, sb, srv, addr, cb );
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/* on any failure, call the teardown functions for anything
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* that previously succeeded
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|
*/
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if ( rc ) {
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ldaplist *l2;
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for (l2 = lo->ldo_conn_cbs; l2 != ll; l2 = l2->ll_next) {
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cb = l2->ll_data;
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cb->lc_del( ld, sb, cb );
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}
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|
/* a failure might have implicitly closed the fd */
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ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, s );
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return rc;
|
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}
|
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}
|
|
lo = LDAP_INT_GLOBAL_OPT();
|
|
for (ll = lo->ldo_conn_cbs; ll; ll = ll->ll_next) {
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cb = ll->ll_data;
|
|
rc = cb->lc_add( ld, sb, srv, addr, cb );
|
|
if ( rc ) {
|
|
ldaplist *l2;
|
|
for (l2 = lo->ldo_conn_cbs; l2 != ll; l2 = l2->ll_next) {
|
|
cb = l2->ll_data;
|
|
cb->lc_del( ld, sb, cb );
|
|
}
|
|
lo = &ld->ld_options;
|
|
for (l2 = lo->ldo_conn_cbs; l2; l2 = l2->ll_next) {
|
|
cb = l2->ll_data;
|
|
cb->lc_del( ld, sb, cb );
|
|
}
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, s );
|
|
return rc;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ldap_connect_to_host(LDAP *ld, Sockbuf *sb,
|
|
int proto, LDAPURLDesc *srv,
|
|
int async )
|
|
{
|
|
int rc;
|
|
int socktype, port;
|
|
ber_socket_t s = AC_SOCKET_INVALID;
|
|
char *host;
|
|
|
|
#if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
|
|
char serv[7];
|
|
int err;
|
|
struct addrinfo hints, *res, *sai;
|
|
#else
|
|
int i;
|
|
int use_hp = 0;
|
|
struct hostent *hp = NULL;
|
|
struct hostent he_buf;
|
|
struct in_addr in;
|
|
char *ha_buf=NULL;
|
|
#endif
|
|
|
|
if ( srv->lud_host == NULL || *srv->lud_host == 0 ) {
|
|
host = "localhost";
|
|
} else {
|
|
host = srv->lud_host;
|
|
}
|
|
|
|
port = srv->lud_port;
|
|
|
|
if( !port ) {
|
|
if( strcmp(srv->lud_scheme, "ldaps") == 0 ) {
|
|
port = LDAPS_PORT;
|
|
} else {
|
|
port = LDAP_PORT;
|
|
}
|
|
}
|
|
|
|
switch(proto) {
|
|
case LDAP_PROTO_TCP: socktype = SOCK_STREAM;
|
|
osip_debug( ld,
|
|
"ldap_connect_to_host: TCP %s:%d\n",
|
|
host, port, 0);
|
|
break;
|
|
case LDAP_PROTO_UDP: socktype = SOCK_DGRAM;
|
|
osip_debug( ld,
|
|
"ldap_connect_to_host: UDP %s:%d\n",
|
|
host, port, 0);
|
|
break;
|
|
default:
|
|
osip_debug( ld, "ldap_connect_to_host: unknown proto: %d\n",
|
|
proto, 0, 0 );
|
|
return -1;
|
|
}
|
|
|
|
#if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
|
|
memset( &hints, '\0', sizeof(hints) );
|
|
#ifdef USE_AI_ADDRCONFIG /* FIXME: configure test needed */
|
|
/* Use AI_ADDRCONFIG only on systems where its known to be needed. */
|
|
hints.ai_flags = AI_ADDRCONFIG;
|
|
#endif
|
|
hints.ai_family = ldap_int_inet4or6;
|
|
hints.ai_socktype = socktype;
|
|
snprintf(serv, sizeof serv, "%d", port );
|
|
|
|
/* most getaddrinfo(3) use non-threadsafe resolver libraries */
|
|
LDAP_MUTEX_LOCK(&ldap_int_resolv_mutex);
|
|
|
|
err = getaddrinfo( host, serv, &hints, &res );
|
|
|
|
LDAP_MUTEX_UNLOCK(&ldap_int_resolv_mutex);
|
|
|
|
if ( err != 0 ) {
|
|
osip_debug(ld, "ldap_connect_to_host: getaddrinfo failed: %s\n",
|
|
AC_GAI_STRERROR(err), 0, 0);
|
|
return -1;
|
|
}
|
|
rc = -1;
|
|
|
|
for( sai=res; sai != NULL; sai=sai->ai_next) {
|
|
if( sai->ai_addr == NULL ) {
|
|
osip_debug(ld, "ldap_connect_to_host: getaddrinfo "
|
|
"ai_addr is NULL?\n", 0, 0, 0);
|
|
continue;
|
|
}
|
|
|
|
/* we assume AF_x and PF_x are equal for all x */
|
|
s = ldap_int_socket( ld, sai->ai_family, socktype );
|
|
if ( s == AC_SOCKET_INVALID ) {
|
|
continue;
|
|
}
|
|
|
|
if ( ldap_int_prepare_socket(ld, s, proto ) == -1 ) {
|
|
ldap_pvt_close_socket(ld, s);
|
|
break;
|
|
}
|
|
|
|
switch (sai->ai_family) {
|
|
#ifdef LDAP_PF_INET6
|
|
case AF_INET6: {
|
|
char addr[INET6_ADDRSTRLEN];
|
|
inet_ntop( AF_INET6,
|
|
&((struct sockaddr_in6 *)sai->ai_addr)->sin6_addr,
|
|
addr, sizeof addr);
|
|
osip_debug(ld, "ldap_connect_to_host: Trying %s %s\n",
|
|
addr, serv, 0);
|
|
} break;
|
|
#endif
|
|
case AF_INET: {
|
|
char addr[INET_ADDRSTRLEN];
|
|
inet_ntop( AF_INET,
|
|
&((struct sockaddr_in *)sai->ai_addr)->sin_addr,
|
|
addr, sizeof addr);
|
|
osip_debug(ld, "ldap_connect_to_host: Trying %s:%s\n",
|
|
addr, serv, 0);
|
|
} break;
|
|
}
|
|
|
|
rc = ldap_pvt_connect( ld, s,
|
|
sai->ai_addr, sai->ai_addrlen, async );
|
|
if ( rc == 0 || rc == -2 ) {
|
|
err = ldap_int_connect_cbs( ld, sb, &s, srv, sai->ai_addr );
|
|
if ( err )
|
|
rc = err;
|
|
else
|
|
break;
|
|
}
|
|
ldap_pvt_close_socket(ld, s);
|
|
}
|
|
freeaddrinfo(res);
|
|
|
|
#else
|
|
if (! inet_aton( host, &in ) ) {
|
|
int local_h_errno;
|
|
rc = ldap_pvt_gethostbyname_a( host, &he_buf, &ha_buf,
|
|
&hp, &local_h_errno );
|
|
|
|
if ( (rc < 0) || (hp == NULL) ) {
|
|
#ifdef HAVE_WINSOCK
|
|
ldap_pvt_set_errno( WSAGetLastError() );
|
|
#else
|
|
/* not exactly right, but... */
|
|
ldap_pvt_set_errno( EHOSTUNREACH );
|
|
#endif
|
|
if (ha_buf) LDAP_FREE(ha_buf);
|
|
return -1;
|
|
}
|
|
|
|
use_hp = 1;
|
|
}
|
|
|
|
rc = s = -1;
|
|
for ( i = 0; !use_hp || (hp->h_addr_list[i] != 0); ++i, rc = -1 ) {
|
|
struct sockaddr_in sin;
|
|
|
|
s = ldap_int_socket( ld, PF_INET, socktype );
|
|
if ( s == AC_SOCKET_INVALID ) {
|
|
/* use_hp ? continue : break; */
|
|
break;
|
|
}
|
|
|
|
if ( ldap_int_prepare_socket( ld, s, proto ) == -1 ) {
|
|
ldap_pvt_close_socket(ld, s);
|
|
break;
|
|
}
|
|
|
|
(void)memset((char *)&sin, '\0', sizeof sin);
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_port = htons((unsigned short) port);
|
|
|
|
if( use_hp ) {
|
|
AC_MEMCPY( &sin.sin_addr, hp->h_addr_list[i],
|
|
sizeof(sin.sin_addr) );
|
|
} else {
|
|
AC_MEMCPY( &sin.sin_addr, &in.s_addr,
|
|
sizeof(sin.sin_addr) );
|
|
}
|
|
|
|
#ifdef HAVE_INET_NTOA_B
|
|
{
|
|
/* for VxWorks */
|
|
char address[INET_ADDR_LEN];
|
|
inet_ntoa_b(sin.sin_address, address);
|
|
osip_debug(ld, "ldap_connect_to_host: Trying %s:%d\n",
|
|
address, port, 0);
|
|
}
|
|
#else
|
|
osip_debug(ld, "ldap_connect_to_host: Trying %s:%d\n",
|
|
inet_ntoa(sin.sin_addr), port, 0);
|
|
#endif
|
|
|
|
rc = ldap_pvt_connect(ld, s,
|
|
(struct sockaddr *)&sin, sizeof(sin),
|
|
async);
|
|
|
|
if ( (rc == 0) || (rc == -2) ) {
|
|
int err = ldap_int_connect_cbs( ld, sb, &s, srv, (struct sockaddr *)&sin );
|
|
if ( err )
|
|
rc = err;
|
|
else
|
|
break;
|
|
}
|
|
|
|
ldap_pvt_close_socket(ld, s);
|
|
|
|
if (!use_hp) break;
|
|
}
|
|
if (ha_buf) LDAP_FREE(ha_buf);
|
|
#endif
|
|
|
|
return rc;
|
|
}
|
|
|
|
#if defined( HAVE_CYRUS_SASL )
|
|
char *
|
|
ldap_host_connected_to( Sockbuf *sb, const char *host )
|
|
{
|
|
ber_socklen_t len;
|
|
#ifdef LDAP_PF_INET6
|
|
struct sockaddr_storage sabuf;
|
|
#else
|
|
struct sockaddr sabuf;
|
|
#endif
|
|
struct sockaddr *sa = (struct sockaddr *) &sabuf;
|
|
ber_socket_t sd;
|
|
|
|
(void)memset( (char *)sa, '\0', sizeof sabuf );
|
|
len = sizeof sabuf;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
if ( getpeername( sd, sa, &len ) == -1 ) {
|
|
return( NULL );
|
|
}
|
|
|
|
/*
|
|
* do a reverse lookup on the addr to get the official hostname.
|
|
* this is necessary for kerberos to work right, since the official
|
|
* hostname is used as the kerberos instance.
|
|
*/
|
|
|
|
switch (sa->sa_family) {
|
|
#ifdef LDAP_PF_LOCAL
|
|
case AF_LOCAL:
|
|
return LDAP_STRDUP( ldap_int_hostname );
|
|
#endif
|
|
#ifdef LDAP_PF_INET6
|
|
case AF_INET6:
|
|
{
|
|
struct in6_addr localhost = IN6ADDR_LOOPBACK_INIT;
|
|
if( memcmp ( &((struct sockaddr_in6 *)sa)->sin6_addr,
|
|
&localhost, sizeof(localhost)) == 0 )
|
|
{
|
|
return LDAP_STRDUP( ldap_int_hostname );
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
case AF_INET:
|
|
{
|
|
struct in_addr localhost;
|
|
localhost.s_addr = htonl( INADDR_ANY );
|
|
|
|
if( memcmp ( &((struct sockaddr_in *)sa)->sin_addr,
|
|
&localhost, sizeof(localhost) ) == 0 )
|
|
{
|
|
return LDAP_STRDUP( ldap_int_hostname );
|
|
}
|
|
|
|
#ifdef INADDR_LOOPBACK
|
|
localhost.s_addr = htonl( INADDR_LOOPBACK );
|
|
|
|
if( memcmp ( &((struct sockaddr_in *)sa)->sin_addr,
|
|
&localhost, sizeof(localhost) ) == 0 )
|
|
{
|
|
return LDAP_STRDUP( ldap_int_hostname );
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return( NULL );
|
|
break;
|
|
}
|
|
|
|
{
|
|
char *herr;
|
|
#ifdef NI_MAXHOST
|
|
char hbuf[NI_MAXHOST];
|
|
#elif defined( MAXHOSTNAMELEN )
|
|
char hbuf[MAXHOSTNAMELEN];
|
|
#else
|
|
char hbuf[256];
|
|
#endif
|
|
hbuf[0] = 0;
|
|
|
|
if (ldap_pvt_get_hname( sa, len, hbuf, sizeof(hbuf), &herr ) == 0
|
|
&& hbuf[0] )
|
|
{
|
|
return LDAP_STRDUP( hbuf );
|
|
}
|
|
}
|
|
|
|
return host ? LDAP_STRDUP( host ) : NULL;
|
|
}
|
|
#endif
|
|
|
|
|
|
struct selectinfo {
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
int si_maxfd;
|
|
struct pollfd si_fds[FD_SETSIZE];
|
|
#else
|
|
/* for UNIX select(2) */
|
|
fd_set si_readfds;
|
|
fd_set si_writefds;
|
|
fd_set si_use_readfds;
|
|
fd_set si_use_writefds;
|
|
#endif
|
|
};
|
|
|
|
void
|
|
ldap_mark_select_write( LDAP *ld, Sockbuf *sb )
|
|
{
|
|
struct selectinfo *sip;
|
|
ber_socket_t sd;
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
{
|
|
int empty=-1;
|
|
int i;
|
|
for(i=0; i < sip->si_maxfd; i++) {
|
|
if( sip->si_fds[i].fd == sd ) {
|
|
sip->si_fds[i].events |= POLL_WRITE;
|
|
return;
|
|
}
|
|
if( empty==-1 && sip->si_fds[i].fd == -1 ) {
|
|
empty=i;
|
|
}
|
|
}
|
|
|
|
if( empty == -1 ) {
|
|
if( sip->si_maxfd >= FD_SETSIZE ) {
|
|
/* FIXME */
|
|
return;
|
|
}
|
|
empty = sip->si_maxfd++;
|
|
}
|
|
|
|
sip->si_fds[empty].fd = sd;
|
|
sip->si_fds[empty].events = POLL_WRITE;
|
|
}
|
|
#else
|
|
/* for UNIX select(2) */
|
|
if ( !FD_ISSET( sd, &sip->si_writefds )) {
|
|
FD_SET( sd, &sip->si_writefds );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
ldap_mark_select_read( LDAP *ld, Sockbuf *sb )
|
|
{
|
|
struct selectinfo *sip;
|
|
ber_socket_t sd;
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
{
|
|
int empty=-1;
|
|
int i;
|
|
for(i=0; i < sip->si_maxfd; i++) {
|
|
if( sip->si_fds[i].fd == sd ) {
|
|
sip->si_fds[i].events |= POLL_READ;
|
|
return;
|
|
}
|
|
if( empty==-1 && sip->si_fds[i].fd == -1 ) {
|
|
empty=i;
|
|
}
|
|
}
|
|
|
|
if( empty == -1 ) {
|
|
if( sip->si_maxfd >= FD_SETSIZE ) {
|
|
/* FIXME */
|
|
return;
|
|
}
|
|
empty = sip->si_maxfd++;
|
|
}
|
|
|
|
sip->si_fds[empty].fd = sd;
|
|
sip->si_fds[empty].events = POLL_READ;
|
|
}
|
|
#else
|
|
/* for UNIX select(2) */
|
|
if ( !FD_ISSET( sd, &sip->si_readfds )) {
|
|
FD_SET( sd, &sip->si_readfds );
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
ldap_mark_select_clear( LDAP *ld, Sockbuf *sb )
|
|
{
|
|
struct selectinfo *sip;
|
|
ber_socket_t sd;
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
{
|
|
int i;
|
|
for(i=0; i < sip->si_maxfd; i++) {
|
|
if( sip->si_fds[i].fd == sd ) {
|
|
sip->si_fds[i].fd = -1;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
/* for UNIX select(2) */
|
|
FD_CLR( sd, &sip->si_writefds );
|
|
FD_CLR( sd, &sip->si_readfds );
|
|
#endif
|
|
}
|
|
|
|
void
|
|
ldap_clear_select_write( LDAP *ld, Sockbuf *sb )
|
|
{
|
|
struct selectinfo *sip;
|
|
ber_socket_t sd;
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
{
|
|
int i;
|
|
for(i=0; i < sip->si_maxfd; i++) {
|
|
if( sip->si_fds[i].fd == sd ) {
|
|
sip->si_fds[i].events &= ~POLL_WRITE;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
/* for UNIX select(2) */
|
|
FD_CLR( sd, &sip->si_writefds );
|
|
#endif
|
|
}
|
|
|
|
|
|
int
|
|
ldap_is_write_ready( LDAP *ld, Sockbuf *sb )
|
|
{
|
|
struct selectinfo *sip;
|
|
ber_socket_t sd;
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
{
|
|
int i;
|
|
for(i=0; i < sip->si_maxfd; i++) {
|
|
if( sip->si_fds[i].fd == sd ) {
|
|
return sip->si_fds[i].revents & POLL_WRITE;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
/* for UNIX select(2) */
|
|
return( FD_ISSET( sd, &sip->si_use_writefds ));
|
|
#endif
|
|
}
|
|
|
|
|
|
int
|
|
ldap_is_read_ready( LDAP *ld, Sockbuf *sb )
|
|
{
|
|
struct selectinfo *sip;
|
|
ber_socket_t sd;
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
|
|
if (ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ))
|
|
return 1;
|
|
|
|
ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
{
|
|
int i;
|
|
for(i=0; i < sip->si_maxfd; i++) {
|
|
if( sip->si_fds[i].fd == sd ) {
|
|
return sip->si_fds[i].revents & POLL_READ;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
/* for UNIX select(2) */
|
|
return( FD_ISSET( sd, &sip->si_use_readfds ));
|
|
#endif
|
|
}
|
|
|
|
|
|
void *
|
|
ldap_new_select_info( void )
|
|
{
|
|
struct selectinfo *sip;
|
|
|
|
sip = (struct selectinfo *)LDAP_CALLOC( 1, sizeof( struct selectinfo ));
|
|
|
|
if ( sip == NULL ) return NULL;
|
|
|
|
#ifdef HAVE_POLL
|
|
/* for UNIX poll(2) */
|
|
/* sip->si_maxfd=0 */
|
|
#else
|
|
/* for UNIX select(2) */
|
|
FD_ZERO( &sip->si_readfds );
|
|
FD_ZERO( &sip->si_writefds );
|
|
#endif
|
|
|
|
return( (void *)sip );
|
|
}
|
|
|
|
|
|
void
|
|
ldap_free_select_info( void *sip )
|
|
{
|
|
LDAP_FREE( sip );
|
|
}
|
|
|
|
|
|
#ifndef HAVE_POLL
|
|
int ldap_int_tblsize = 0;
|
|
|
|
void
|
|
ldap_int_ip_init( void )
|
|
{
|
|
#if defined( HAVE_SYSCONF )
|
|
long tblsize = sysconf( _SC_OPEN_MAX );
|
|
if( tblsize > INT_MAX ) tblsize = INT_MAX;
|
|
|
|
#elif defined( HAVE_GETDTABLESIZE )
|
|
int tblsize = getdtablesize();
|
|
#else
|
|
int tblsize = FD_SETSIZE;
|
|
#endif /* !USE_SYSCONF */
|
|
|
|
#ifdef FD_SETSIZE
|
|
if( tblsize > FD_SETSIZE ) tblsize = FD_SETSIZE;
|
|
#endif /* FD_SETSIZE */
|
|
|
|
ldap_int_tblsize = tblsize;
|
|
}
|
|
#endif
|
|
|
|
|
|
int
|
|
ldap_int_select( LDAP *ld, struct timeval *timeout )
|
|
{
|
|
int rc;
|
|
struct selectinfo *sip;
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "ldap_int_select\n", 0, 0, 0 );
|
|
|
|
#ifndef HAVE_POLL
|
|
if ( ldap_int_tblsize == 0 ) ldap_int_ip_init();
|
|
#endif
|
|
|
|
sip = (struct selectinfo *)ld->ld_selectinfo;
|
|
assert( sip != NULL );
|
|
|
|
#ifdef HAVE_POLL
|
|
{
|
|
int to = timeout ? TV2MILLISEC( timeout ) : INFTIM;
|
|
rc = poll( sip->si_fds, sip->si_maxfd, to );
|
|
}
|
|
#else
|
|
sip->si_use_readfds = sip->si_readfds;
|
|
sip->si_use_writefds = sip->si_writefds;
|
|
|
|
rc = select( ldap_int_tblsize,
|
|
&sip->si_use_readfds, &sip->si_use_writefds,
|
|
NULL, timeout );
|
|
#endif
|
|
|
|
return rc;
|
|
}
|