/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2004 The OpenLDAP Foundation.
+ * Copyright 1998-2008 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include "ldap_rq.h"
#if defined(HAVE_SYS_EPOLL_H) && defined(HAVE_EPOLL)
-#include <sys/epoll.h>
-#endif
+# include <sys/epoll.h>
+#elif defined(SLAP_X_DEVPOLL) && defined(HAVE_SYS_DEVPOLL_H) && defined(HAVE_DEVPOLL)
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <fcntl.h>
+# include <sys/devpoll.h>
+#endif /* ! epoll && ! /dev/poll */
#ifdef HAVE_TCPD
-#include <tcpd.h>
-#define SLAP_STRING_UNKNOWN STRING_UNKNOWN
-
+# include <tcpd.h>
int allow_severity = LOG_INFO;
int deny_severity = LOG_NOTICE;
+
+# define SLAP_STRING_UNKNOWN STRING_UNKNOWN
#else /* ! TCP Wrappers */
-#define SLAP_STRING_UNKNOWN "unknown"
+# define SLAP_STRING_UNKNOWN "unknown"
#endif /* ! TCP Wrappers */
#ifdef LDAP_PF_LOCAL
-#include <sys/stat.h>
+# include <sys/stat.h>
/* this should go in <ldap.h> as soon as it is accepted */
-#define LDAPI_MOD_URLEXT "x-mod"
+# define LDAPI_MOD_URLEXT "x-mod"
#endif /* LDAP_PF_LOCAL */
#ifdef LDAP_PF_INET6
int slap_inet4or6 = AF_UNSPEC;
-#else
+#else /* ! INETv6 */
int slap_inet4or6 = AF_INET;
-#endif
+#endif /* ! INETv6 */
/* globals */
time_t starttime;
ber_socket_t dtblsize;
slap_ssf_t local_ssf = LDAP_PVT_SASL_LOCAL_SSF;
+struct runqueue_s slapd_rq;
Listener **slap_listeners = NULL;
-#define SLAPD_LISTEN 10
+#ifndef SLAPD_LISTEN_BACKLOG
+#define SLAPD_LISTEN_BACKLOG 1024
+#endif /* ! SLAPD_LISTEN_BACKLOG */
static ber_socket_t wake_sds[2];
static int emfile;
-static int waking;
-#define WAKE_LISTENER(w) \
-do { if (w && waking < 5) { waking++; tcp_write( wake_sds[1], "0", 1 ); } } while(0)
-
-volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
+static volatile int waking;
+#ifdef NO_THREADS
+#define WAKE_LISTENER(w) do { \
+ if ((w) && ++waking < 5) { \
+ tcp_write( wake_sds[1], "0", 1 ); \
+ } \
+} while (0)
+#else /* ! NO_THREADS */
+#define WAKE_LISTENER(w) do { \
+ if (w) { \
+ tcp_write( wake_sds[1], "0", 1 ); \
+ } \
+} while (0)
+#endif /* ! NO_THREADS */
+
+volatile sig_atomic_t slapd_shutdown = 0;
+volatile sig_atomic_t slapd_gentle_shutdown = 0;
volatile sig_atomic_t slapd_abrupt_shutdown = 0;
static struct slap_daemon {
ldap_pvt_thread_mutex_t sd_mutex;
-
- ber_socket_t sd_nactives;
- int sd_nwriters;
-
-#ifdef HAVE_EPOLL
- struct epoll_event *sd_epolls;
- int sd_nepolls;
- int *sd_index;
- int sd_epfd;
- int sd_nfds;
-#else
-
+#ifdef HAVE_TCPD
+ ldap_pvt_thread_mutex_t sd_tcpd_mutex;
+#endif /* TCP Wrappers */
+
+ ber_socket_t sd_nactives;
+ int sd_nwriters;
+
+#if defined(HAVE_EPOLL)
+ struct epoll_event *sd_epolls;
+ int *sd_index;
+ int sd_epfd;
+ int sd_nfds;
+#elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
+ /* eXperimental */
+ struct pollfd *sd_pollfd;
+ int *sd_index;
+ Listener **sd_l;
+ int sd_dpfd;
+ int sd_nfds;
+#else /* ! epoll && ! /dev/poll */
#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;
-#endif
+ int sd_nfds;
+#endif /* ! HAVE_WINSOCK */
+ fd_set sd_actives;
+ fd_set sd_readers;
+ fd_set sd_writers;
+#endif /* ! epoll && ! /dev/poll */
} slap_daemon;
-#ifdef HAVE_EPOLL
-#define SLAP_EVENTS_ARE_INDEXED 0
-#define SLAP_SOCK_IX(s) (slap_daemon.sd_index[s])
-#define SLAP_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_SOCK_IX(s)])
-#define SLAP_SOCK_EV(s) (SLAP_SOCK_EP(s).events)
-#define SLAP_SOCK_IS_ACTIVE(s) (SLAP_SOCK_IX(s) != -1)
-#define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_SOCK_IX(s) == -1)
-#define SLAP_SOCK_IS_SET(s, mode) (SLAP_SOCK_EV(s) & mode)
-
-#define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET(s, EPOLLIN)
-#define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET(s, EPOLLOUT)
-
-#define SLAP_SET_SOCK(s, mode) do { \
- if ((SLAP_SOCK_EV(s) & mode) != mode) { \
- SLAP_SOCK_EV(s) |= mode; \
- epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
- &SLAP_SOCK_EP(s)); \
- } \
-} while(0)
-
-#define SLAP_CLR_SOCK(s, mode) do { \
- if ((SLAP_SOCK_EV(s) & mode)) { \
- SLAP_SOCK_EV(s) &= ~mode; \
- epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
- &SLAP_SOCK_EP(s)); \
- } \
-} while(0)
-
-#define SLAP_SOCK_SET_READ(s) SLAP_SET_SOCK(s, EPOLLIN)
-#define SLAP_SOCK_SET_WRITE(s) SLAP_SET_SOCK(s, EPOLLOUT)
-
-#define SLAP_SOCK_CLR_READ(s) SLAP_CLR_SOCK(s, EPOLLIN)
-#define SLAP_SOCK_CLR_WRITE(s) SLAP_CLR_SOCK(s, EPOLLOUT)
-
-#define SLAP_CLR_EVENT(i, mode) (revents[i].events &= ~mode)
-
-
-#define SLAP_EVENT_MAX slap_daemon.sd_nfds
+/*
+ * NOTE: naming convention for macros:
+ *
+ * - SLAP_SOCK_* and SLAP_EVENT_* for public interface that deals
+ * with file descriptors and events respectively
+ *
+ * - SLAP_<type>_* for private interface; type by now is one of
+ * EPOLL, DEVPOLL, SELECT
+ *
+ * private interface should not be used in the code.
+ */
+#if defined(HAVE_EPOLL)
+/***************************************
+ * Use epoll infrastructure - epoll(4) *
+ ***************************************/
+# define SLAP_EVENT_FNAME "epoll"
+# define SLAP_EVENTS_ARE_INDEXED 0
+# define SLAP_EPOLL_SOCK_IX(s) (slap_daemon.sd_index[(s)])
+# define SLAP_EPOLL_SOCK_EP(s) (slap_daemon.sd_epolls[SLAP_EPOLL_SOCK_IX(s)])
+# define SLAP_EPOLL_SOCK_EV(s) (SLAP_EPOLL_SOCK_EP(s).events)
+# define SLAP_SOCK_IS_ACTIVE(s) (SLAP_EPOLL_SOCK_IX(s) != -1)
+# define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_EPOLL_SOCK_IX(s) == -1)
+# define SLAP_EPOLL_SOCK_IS_SET(s, mode) (SLAP_EPOLL_SOCK_EV(s) & (mode))
+
+# define SLAP_SOCK_IS_READ(s) SLAP_EPOLL_SOCK_IS_SET((s), EPOLLIN)
+# define SLAP_SOCK_IS_WRITE(s) SLAP_EPOLL_SOCK_IS_SET((s), EPOLLOUT)
+
+# define SLAP_EPOLL_SOCK_SET(s, mode) do { \
+ if ( (SLAP_EPOLL_SOCK_EV(s) & (mode)) != (mode) ) { \
+ SLAP_EPOLL_SOCK_EV(s) |= (mode); \
+ epoll_ctl( slap_daemon.sd_epfd, EPOLL_CTL_MOD, (s), \
+ &SLAP_EPOLL_SOCK_EP(s) ); \
+ } \
+} while (0)
+
+# define SLAP_EPOLL_SOCK_CLR(s, mode) do { \
+ if ( (SLAP_EPOLL_SOCK_EV(s) & (mode)) ) { \
+ SLAP_EPOLL_SOCK_EV(s) &= ~(mode); \
+ epoll_ctl( slap_daemon.sd_epfd, EPOLL_CTL_MOD, s, \
+ &SLAP_EPOLL_SOCK_EP(s) ); \
+ } \
+} while (0)
+
+# define SLAP_SOCK_SET_READ(s) SLAP_EPOLL_SOCK_SET(s, EPOLLIN)
+# define SLAP_SOCK_SET_WRITE(s) SLAP_EPOLL_SOCK_SET(s, EPOLLOUT)
+
+# define SLAP_SOCK_CLR_READ(s) SLAP_EPOLL_SOCK_CLR((s), EPOLLIN)
+# define SLAP_SOCK_CLR_WRITE(s) SLAP_EPOLL_SOCK_CLR((s), EPOLLOUT)
+
+# ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+# define SLAP_SOCK_SET_SUSPEND(s) \
+ ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] = 1 )
+# define SLAP_SOCK_CLR_SUSPEND(s) \
+ ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] = 0 )
+# define SLAP_SOCK_IS_SUSPEND(s) \
+ ( slap_daemon.sd_suspend[SLAP_EPOLL_SOCK_IX(s)] == 1 )
+# endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
+
+# define SLAP_EPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
+
+# define SLAP_EVENT_MAX slap_daemon.sd_nfds
/* If a Listener address is provided, store that as the epoll data.
* Otherwise, store the address of this socket's slot in the
* index array. If we can't do this add, the system is out of
* resources and we need to shutdown.
*/
-#define SLAP_ADD_SOCK(s, l) do { \
- int rc; \
- SLAP_SOCK_IX(s) = slap_daemon.sd_nfds; \
- SLAP_SOCK_EP(s).data.ptr = (l) ? (l) : (void *)(&SLAP_SOCK_IX(s)); \
- SLAP_SOCK_EV(s) = EPOLLIN; \
- rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, s, \
- &SLAP_SOCK_EP(s)); \
- if ( rc == 0 ) slap_daemon.sd_nfds++; \
- else { \
- Debug( LDAP_DEBUG_ANY, "daemon: epoll_ctl ADD failed, errno %d, shutting down\n", \
- errno, 0, 0 ); \
- slapd_shutdown = 2; \
- } \
-} while(0)
-
-#define SLAP_EV_LISTENER(ptr) (((int *)(ptr) >= slap_daemon.sd_index && \
- (int *)(ptr) <= (slap_daemon.sd_index+dtblsize)) ? 0 : 1)
-
-#define SLAP_EV_PTRFD(ptr) (SLAP_EV_LISTENER(ptr) ? \
- ((Listener *)ptr)->sl_sd : (int *)(ptr) - slap_daemon.sd_index)
-
-#define SLAP_DEL_SOCK(s) do { \
- int fd, rc, index = SLAP_SOCK_IX(s); \
- rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, s, \
- &SLAP_SOCK_EP(s)); \
- slap_daemon.sd_epolls[index] = slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
- fd = SLAP_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
- slap_daemon.sd_index[fd] = index; \
- slap_daemon.sd_index[s] = -1; \
- slap_daemon.sd_nfds--; \
-} while(0)
-
-#define SLAP_EVENT_CLR_READ(i) SLAP_CLR_EVENT(i, EPOLLIN)
-#define SLAP_EVENT_CLR_WRITE(i) SLAP_CLR_EVENT(i, EPOLLOUT)
-
-#define SLAP_CHK_EVENT(i, mode) (revents[i].events & mode)
-
-#define SLAP_EVENT_IS_READ(i) SLAP_CHK_EVENT(i, EPOLLIN)
-#define SLAP_EVENT_IS_WRITE(i) SLAP_CHK_EVENT(i, EPOLLOUT)
-#define SLAP_EVENT_IS_LISTENER(i) SLAP_EV_LISTENER(revents[i].data.ptr)
-#define SLAP_EVENT_LISTENER(i) (revents[i].data.ptr)
-
-#define SLAP_EVENT_FD(i) SLAP_EV_PTRFD(revents[i].data.ptr)
-#define SLAP_SOCK_SET_MUTE(s) SLAP_SOCK_CLR_READ(s)
-#define SLAP_SOCK_CLR_MUTE(s) SLAP_SOCK_SET_READ(s)
-#define SLAP_SOCK_IS_MUTE(s) !SLAP_SOCK_IS_READ(s)
-
-#define SLAP_SOCK_SET_INIT \
- slap_daemon.sd_epolls = ch_malloc(sizeof(struct epoll_event) * dtblsize * 2); \
- slap_daemon.sd_index = ch_malloc(sizeof(int) * dtblsize); \
- slap_daemon.sd_epfd = epoll_create( dtblsize ); \
- for (i=0; i<dtblsize; i++) slap_daemon.sd_index[i] = -1
-
-
-#define SLAP_EVENT_DECL \
- struct epoll_event *revents
-
-#define SLAP_EVENT_INIT \
- revents = slap_daemon.sd_epolls + dtblsize; \
-
-#define SLAP_EVENT_WAIT(tvp) \
- epoll_wait( slap_daemon.sd_epfd, revents, dtblsize, tvp ? tvp->tv_sec * 1000 : -1 )
-
-#else
-
+# define SLAP_SOCK_ADD(s, l) do { \
+ int rc; \
+ SLAP_EPOLL_SOCK_IX((s)) = slap_daemon.sd_nfds; \
+ SLAP_EPOLL_SOCK_EP((s)).data.ptr = (l) ? (l) : (void *)(&SLAP_EPOLL_SOCK_IX(s)); \
+ SLAP_EPOLL_SOCK_EV((s)) = EPOLLIN; \
+ rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_ADD, \
+ (s), &SLAP_EPOLL_SOCK_EP((s))); \
+ if ( rc == 0 ) { \
+ slap_daemon.sd_nfds++; \
+ } else { \
+ Debug( LDAP_DEBUG_ANY, \
+ "daemon: epoll_ctl(ADD,fd=%d) failed, errno=%d, shutting down\n", \
+ s, errno, 0 ); \
+ slapd_shutdown = 2; \
+ } \
+} while (0)
+
+# define SLAP_EPOLL_EV_LISTENER(ptr) \
+ (((int *)(ptr) >= slap_daemon.sd_index && \
+ (int *)(ptr) <= &slap_daemon.sd_index[dtblsize]) ? 0 : 1 )
+
+# define SLAP_EPOLL_EV_PTRFD(ptr) (SLAP_EPOLL_EV_LISTENER(ptr) ? \
+ ((Listener *)ptr)->sl_sd : \
+ (ber_socket_t) ((int *)(ptr) - slap_daemon.sd_index))
+
+# define SLAP_SOCK_DEL(s) do { \
+ int fd, rc, index = SLAP_EPOLL_SOCK_IX((s)); \
+ if ( index < 0 ) break; \
+ rc = epoll_ctl(slap_daemon.sd_epfd, EPOLL_CTL_DEL, \
+ (s), &SLAP_EPOLL_SOCK_EP((s))); \
+ slap_daemon.sd_epolls[index] = \
+ slap_daemon.sd_epolls[slap_daemon.sd_nfds-1]; \
+ fd = SLAP_EPOLL_EV_PTRFD(slap_daemon.sd_epolls[index].data.ptr); \
+ slap_daemon.sd_index[fd] = index; \
+ slap_daemon.sd_index[(s)] = -1; \
+ slap_daemon.sd_nfds--; \
+} while (0)
+
+# define SLAP_EVENT_CLR_READ(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLIN)
+# define SLAP_EVENT_CLR_WRITE(i) SLAP_EPOLL_EVENT_CLR((i), EPOLLOUT)
+
+# define SLAP_EPOLL_EVENT_CHK(i, mode) (revents[(i)].events & mode)
+
+# define SLAP_EVENT_IS_READ(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLIN)
+# define SLAP_EVENT_IS_WRITE(i) SLAP_EPOLL_EVENT_CHK((i), EPOLLOUT)
+# define SLAP_EVENT_IS_LISTENER(i) SLAP_EPOLL_EV_LISTENER(revents[(i)].data.ptr)
+# define SLAP_EVENT_LISTENER(i) ((Listener *)(revents[(i)].data.ptr))
+
+# define SLAP_EVENT_FD(i) SLAP_EPOLL_EV_PTRFD(revents[(i)].data.ptr)
+
+# define SLAP_SOCK_INIT do { \
+ slap_daemon.sd_epolls = ch_calloc(1, \
+ ( sizeof(struct epoll_event) * 2 \
+ + sizeof(int) ) * dtblsize * 2); \
+ slap_daemon.sd_index = (int *)&slap_daemon.sd_epolls[ 2 * dtblsize ]; \
+ slap_daemon.sd_epfd = epoll_create( dtblsize ); \
+ for ( i = 0; i < dtblsize; i++ ) slap_daemon.sd_index[i] = -1; \
+} while (0)
+
+# define SLAP_SOCK_DESTROY do { \
+ if ( slap_daemon.sd_epolls != NULL ) { \
+ ch_free( slap_daemon.sd_epolls ); \
+ slap_daemon.sd_epolls = NULL; \
+ slap_daemon.sd_index = NULL; \
+ close( slap_daemon.sd_epfd ); \
+ } \
+} while ( 0 )
+
+# define SLAP_EVENT_DECL struct epoll_event *revents
+
+# define SLAP_EVENT_INIT do { \
+ revents = slap_daemon.sd_epolls + dtblsize; \
+} while (0)
+
+# define SLAP_EVENT_WAIT(tvp, nsp) do { \
+ *(nsp) = epoll_wait( slap_daemon.sd_epfd, revents, \
+ dtblsize, (tvp) ? (tvp)->tv_sec * 1000 : -1 ); \
+} while (0)
+
+#elif defined(SLAP_X_DEVPOLL) && defined(HAVE_DEVPOLL)
+
+/*************************************************************
+ * Use Solaris' (>= 2.7) /dev/poll infrastructure - poll(7d) *
+ *************************************************************/
+# define SLAP_EVENT_FNAME "/dev/poll"
+# define SLAP_EVENTS_ARE_INDEXED 0
+/*
+ * - sd_index is used much like with epoll()
+ * - sd_l is maintained as an array containing the address
+ * of the listener; the index is the fd itself
+ * - sd_pollfd is used to keep track of what data has been
+ * registered in /dev/poll
+ */
+# define SLAP_DEVPOLL_SOCK_IX(s) (slap_daemon.sd_index[(s)])
+# define SLAP_DEVPOLL_SOCK_LX(s) (slap_daemon.sd_l[(s)])
+# define SLAP_DEVPOLL_SOCK_EP(s) (slap_daemon.sd_pollfd[SLAP_DEVPOLL_SOCK_IX((s))])
+# define SLAP_DEVPOLL_SOCK_FD(s) (SLAP_DEVPOLL_SOCK_EP((s)).fd)
+# define SLAP_DEVPOLL_SOCK_EV(s) (SLAP_DEVPOLL_SOCK_EP((s)).events)
+# define SLAP_SOCK_IS_ACTIVE(s) (SLAP_DEVPOLL_SOCK_IX((s)) != -1)
+# define SLAP_SOCK_NOT_ACTIVE(s) (SLAP_DEVPOLL_SOCK_IX((s)) == -1)
+# define SLAP_SOCK_IS_SET(s, mode) (SLAP_DEVPOLL_SOCK_EV((s)) & (mode))
+
+# define SLAP_SOCK_IS_READ(s) SLAP_SOCK_IS_SET((s), POLLIN)
+# define SLAP_SOCK_IS_WRITE(s) SLAP_SOCK_IS_SET((s), POLLOUT)
+
+/* as far as I understand, any time we need to communicate with the kernel
+ * about the number and/or properties of a file descriptor we need it to
+ * wait for, we have to rewrite the whole set */
+# define SLAP_DEVPOLL_WRITE_POLLFD(s, pfd, n, what, shdn) do { \
+ int rc; \
+ size_t size = (n) * sizeof( struct pollfd ); \
+ /* FIXME: use pwrite? */ \
+ rc = write( slap_daemon.sd_dpfd, (pfd), size ); \
+ if ( rc != size ) { \
+ Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
+ "%s fd=%d failed errno=%d\n", \
+ (what), (s), errno ); \
+ if ( (shdn) ) { \
+ slapd_shutdown = 2; \
+ } \
+ } \
+} while (0)
+
+# define SLAP_DEVPOLL_SOCK_SET(s, mode) do { \
+ Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_SET_%s(%d)=%d\n", \
+ (mode) == POLLIN ? "READ" : "WRITE", (s), \
+ ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) != (mode) ) ); \
+ if ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) != (mode) ) { \
+ struct pollfd pfd; \
+ SLAP_DEVPOLL_SOCK_EV((s)) |= (mode); \
+ pfd.fd = SLAP_DEVPOLL_SOCK_FD((s)); \
+ pfd.events = /* (mode) */ SLAP_DEVPOLL_SOCK_EV((s)); \
+ SLAP_DEVPOLL_WRITE_POLLFD((s), &pfd, 1, "SET", 0); \
+ } \
+} while (0)
+
+# define SLAP_DEVPOLL_SOCK_CLR(s, mode) do { \
+ Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_CLR_%s(%d)=%d\n", \
+ (mode) == POLLIN ? "READ" : "WRITE", (s), \
+ ( (SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) == (mode) ) ); \
+ if ((SLAP_DEVPOLL_SOCK_EV((s)) & (mode)) == (mode) ) { \
+ struct pollfd pfd[2]; \
+ SLAP_DEVPOLL_SOCK_EV((s)) &= ~(mode); \
+ pfd[0].fd = SLAP_DEVPOLL_SOCK_FD((s)); \
+ pfd[0].events = POLLREMOVE; \
+ pfd[1] = SLAP_DEVPOLL_SOCK_EP((s)); \
+ SLAP_DEVPOLL_WRITE_POLLFD((s), &pfd[0], 2, "CLR", 0); \
+ } \
+} while (0)
+
+# define SLAP_SOCK_SET_READ(s) SLAP_DEVPOLL_SOCK_SET(s, POLLIN)
+# define SLAP_SOCK_SET_WRITE(s) SLAP_DEVPOLL_SOCK_SET(s, POLLOUT)
+
+# define SLAP_SOCK_CLR_READ(s) SLAP_DEVPOLL_SOCK_CLR((s), POLLIN)
+# define SLAP_SOCK_CLR_WRITE(s) SLAP_DEVPOLL_SOCK_CLR((s), POLLOUT)
+
+# ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+# define SLAP_SOCK_SET_SUSPEND(s) \
+ ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] = 1 )
+# define SLAP_SOCK_CLR_SUSPEND(s) \
+ ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] = 0 )
+# define SLAP_SOCK_IS_SUSPEND(s) \
+ ( slap_daemon.sd_suspend[SLAP_DEVPOLL_SOCK_IX((s))] == 1 )
+# endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
+
+# define SLAP_DEVPOLL_EVENT_CLR(i, mode) (revents[(i)].events &= ~(mode))
+
+# define SLAP_EVENT_MAX slap_daemon.sd_nfds
+
+/* If a Listener address is provided, store that in the sd_l array.
+ * If we can't do this add, the system is out of resources and we
+ * need to shutdown.
+ */
+# define SLAP_SOCK_ADD(s, l) do { \
+ Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_ADD(%d, %p)\n", (s), (l), 0 ); \
+ SLAP_DEVPOLL_SOCK_IX((s)) = slap_daemon.sd_nfds; \
+ SLAP_DEVPOLL_SOCK_LX((s)) = (l); \
+ SLAP_DEVPOLL_SOCK_FD((s)) = (s); \
+ SLAP_DEVPOLL_SOCK_EV((s)) = POLLIN; \
+ SLAP_DEVPOLL_WRITE_POLLFD((s), &SLAP_DEVPOLL_SOCK_EP((s)), 1, "ADD", 1); \
+ slap_daemon.sd_nfds++; \
+} while (0)
+
+# define SLAP_DEVPOLL_EV_LISTENER(ptr) ((ptr) != NULL)
+
+# define SLAP_SOCK_DEL(s) do { \
+ int fd, index = SLAP_DEVPOLL_SOCK_IX((s)); \
+ Debug( LDAP_DEBUG_CONNS, "SLAP_SOCK_DEL(%d)\n", (s), 0, 0 ); \
+ if ( index < 0 ) break; \
+ if ( index < slap_daemon.sd_nfds - 1 ) { \
+ struct pollfd pfd = slap_daemon.sd_pollfd[index]; \
+ fd = slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].fd; \
+ slap_daemon.sd_pollfd[index] = slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1]; \
+ slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1] = pfd; \
+ slap_daemon.sd_index[fd] = index; \
+ } \
+ slap_daemon.sd_index[(s)] = -1; \
+ slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].events = POLLREMOVE; \
+ SLAP_DEVPOLL_WRITE_POLLFD((s), &slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1], 1, "DEL", 0); \
+ slap_daemon.sd_pollfd[slap_daemon.sd_nfds - 1].events = 0; \
+ slap_daemon.sd_nfds--; \
+} while (0)
+
+# define SLAP_EVENT_CLR_READ(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLIN)
+# define SLAP_EVENT_CLR_WRITE(i) SLAP_DEVPOLL_EVENT_CLR((i), POLLOUT)
+
+# define SLAP_DEVPOLL_EVENT_CHK(i, mode) (revents[(i)].events & (mode))
+
+# define SLAP_EVENT_FD(i) (revents[(i)].fd)
+
+# define SLAP_EVENT_IS_READ(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLIN)
+# define SLAP_EVENT_IS_WRITE(i) SLAP_DEVPOLL_EVENT_CHK((i), POLLOUT)
+# define SLAP_EVENT_IS_LISTENER(i) SLAP_DEVPOLL_EV_LISTENER(SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD((i))))
+# define SLAP_EVENT_LISTENER(i) SLAP_DEVPOLL_SOCK_LX(SLAP_EVENT_FD((i)))
+
+# define SLAP_SOCK_INIT do { \
+ slap_daemon.sd_pollfd = ch_calloc( 1, \
+ ( sizeof(struct pollfd) * 2 \
+ + sizeof( int ) \
+ + sizeof( Listener * ) ) * dtblsize ); \
+ slap_daemon.sd_index = (int *)&slap_daemon.sd_pollfd[ 2 * dtblsize ]; \
+ slap_daemon.sd_l = (Listener **)&slap_daemon.sd_index[ dtblsize ]; \
+ slap_daemon.sd_dpfd = open( SLAP_EVENT_FNAME, O_RDWR ); \
+ if ( slap_daemon.sd_dpfd == -1 ) { \
+ Debug( LDAP_DEBUG_ANY, "daemon: " SLAP_EVENT_FNAME ": " \
+ "open(\"" SLAP_EVENT_FNAME "\") failed errno=%d\n", \
+ errno, 0, 0 ); \
+ SLAP_SOCK_DESTROY; \
+ return -1; \
+ } \
+ for ( i = 0; i < dtblsize; i++ ) { \
+ slap_daemon.sd_pollfd[i].fd = -1; \
+ slap_daemon.sd_index[i] = -1; \
+ } \
+} while (0)
+
+# define SLAP_SOCK_DESTROY do { \
+ if ( slap_daemon.sd_pollfd != NULL ) { \
+ ch_free( slap_daemon.sd_pollfd ); \
+ slap_daemon.sd_pollfd = NULL; \
+ slap_daemon.sd_index = NULL; \
+ slap_daemon.sd_l = NULL; \
+ close( slap_daemon.sd_dpfd ); \
+ } \
+} while ( 0 )
+
+# define SLAP_EVENT_DECL struct pollfd *revents
+
+# define SLAP_EVENT_INIT do { \
+ revents = &slap_daemon.sd_pollfd[ dtblsize ]; \
+} while (0)
+
+# define SLAP_EVENT_WAIT(tvp, nsp) do { \
+ struct dvpoll sd_dvpoll; \
+ sd_dvpoll.dp_timeout = (tvp) ? (tvp)->tv_sec * 1000 : -1; \
+ sd_dvpoll.dp_nfds = dtblsize; \
+ sd_dvpoll.dp_fds = revents; \
+ *(nsp) = ioctl( slap_daemon.sd_dpfd, DP_POLL, &sd_dvpoll ); \
+} while (0)
+
+#else /* ! epoll && ! /dev/poll */
+
+/**************************************
+ * Use select system call - select(2) *
+ **************************************/
+# define SLAP_EVENT_FNAME "select"
/* select */
-#define SLAP_EVENTS_ARE_INDEXED 1
-#define SLAP_EVENT_DECL \
- fd_set readfds, writefds
-
-#define SLAP_EVENT_INIT \
- AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
- if ( nwriters ) \
- AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) )
-
-#ifdef FD_SETSIZE
-#define CHK_SETSIZE \
- if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE
-#else
-#define CHK_SETSIZE
-#endif
-
-#define SLAP_SOCK_SET_INIT \
- CHK_SETSIZE; \
- FD_ZERO(&slap_daemon.sd_readers); \
- FD_ZERO(&slap_daemon.sd_writers)
-
-#define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET(fd, &slap_daemon.sd_actives)
-#define SLAP_SOCK_IS_READ(fd) FD_ISSET(fd, &slap_daemon.sd_readers)
-#define SLAP_SOCK_IS_WRITE(fd) FD_ISSET(fd, &slap_daemon.sd_writers)
+# define SLAP_EVENTS_ARE_INDEXED 1
+# define SLAP_EVENT_DECL fd_set readfds, writefds
-#define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
+# define SLAP_EVENT_INIT do { \
+ AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) ); \
+ if ( nwriters ) { \
+ AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) ); \
+ } else { \
+ FD_ZERO( &writefds ); \
+ } \
+} while (0)
+
+# ifdef FD_SETSIZE
+# define SLAP_SELECT_CHK_SETSIZE do { \
+ if (dtblsize > FD_SETSIZE) dtblsize = FD_SETSIZE; \
+} while (0)
+# else /* ! FD_SETSIZE */
+# define SLAP_SELECT_CHK_SETSIZE do { ; } while (0)
+# endif /* ! FD_SETSIZE */
+
+# define SLAP_SOCK_INIT do { \
+ SLAP_SELECT_CHK_SETSIZE; \
+ FD_ZERO(&slap_daemon.sd_actives); \
+ FD_ZERO(&slap_daemon.sd_readers); \
+ FD_ZERO(&slap_daemon.sd_writers); \
+} while (0)
+
+# define SLAP_SOCK_DESTROY
+
+# define SLAP_SOCK_IS_ACTIVE(fd) FD_ISSET((fd), &slap_daemon.sd_actives)
+# define SLAP_SOCK_IS_READ(fd) FD_ISSET((fd), &slap_daemon.sd_readers)
+# define SLAP_SOCK_IS_WRITE(fd) FD_ISSET((fd), &slap_daemon.sd_writers)
+
+# define SLAP_SOCK_NOT_ACTIVE(fd) (!SLAP_SOCK_IS_ACTIVE(fd) && \
!SLAP_SOCK_IS_READ(fd) && !SLAP_SOCK_IS_WRITE(fd))
-#ifdef HAVE_WINSOCK
-#define SLAP_SOCK_SET_READ(fd) do { \
- if (!SLAP_SOCK_IS_READ(fd)) {FD_SET(fd, &slap_daemon.sd_readers);} \
-} while(0)
-#define SLAP_SOCK_SET_WRITE(fd) do { \
- if (!SLAP_SOCK_IS_WRITE(fd)) {FD_SET(fd, &slap_daemon.sd_writers);} \
-} while(0)
-
-#define SLAP_ADDTEST(s)
-#define SLAP_EVENT_MAX dtblsize
-#else
-#define SLAP_SOCK_SET_READ(fd) FD_SET(fd, &slap_daemon.sd_readers)
-#define SLAP_SOCK_SET_WRITE(fd) FD_SET(fd, &slap_daemon.sd_writers)
-
-#define SLAP_EVENT_MAX slap_daemon.sd_nfds
-#define SLAP_ADDTEST(s) if (s >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = s+1
-#endif
-
-#define SLAP_SOCK_CLR_READ(fd) FD_CLR(fd, &slap_daemon.sd_readers)
-#define SLAP_SOCK_CLR_WRITE(fd) FD_CLR(fd, &slap_daemon.sd_writers)
-
-#define SLAP_ADD_SOCK(s, l) do { \
- SLAP_ADDTEST(s); \
- FD_SET(s, &slap_daemon.sd_actives); \
- FD_SET(s, &slap_daemon.sd_readers); \
-} while(0)
-
-#define SLAP_DEL_SOCK(s) do { \
- FD_CLR(s, &slap_daemon.sd_actives); \
- FD_CLR(s, &slap_daemon.sd_readers); \
- FD_CLR(s, &slap_daemon.sd_writers); \
-} while(0)
-
-#define SLAP_EVENT_IS_READ(fd) FD_ISSET(fd, &readfds)
-#define SLAP_EVENT_IS_WRITE(fd) FD_ISSET(fd, &writefds)
-
-#define SLAP_EVENT_CLR_READ(fd) FD_CLR(fd, &readfds)
-#define SLAP_EVENT_CLR_WRITE(fd) FD_CLR(fd, &writefds)
-
-#define SLAP_EVENT_WAIT(tvp) \
- select( SLAP_EVENT_MAX, &readfds, \
- nwriters > 0 ? &writefds : NULL, NULL, tvp )
-
-#define SLAP_SOCK_SET_MUTE(s) FD_CLR(s, &readfds)
-#define SLAP_SOCK_CLR_MUTE(s) FD_SET(s, &readfds)
-#define SLAP_SOCK_IS_MUTE(s) FD_ISSET(s, &readfds)
-
-#endif
-
+# ifdef HAVE_WINSOCK
+# define SLAP_SOCK_SET_READ(fd) do { \
+ if (!SLAP_SOCK_IS_READ(fd)) { FD_SET((fd), &slap_daemon.sd_readers); } \
+} while (0)
+# define SLAP_SOCK_SET_WRITE(fd) do { \
+ if (!SLAP_SOCK_IS_WRITE(fd)) { FD_SET((fd), &slap_daemon.sd_writers); } \
+} while (0)
+
+# define SLAP_SELECT_ADDTEST(s)
+# define SLAP_EVENT_MAX dtblsize
+# else /* ! HAVE_WINSOCK */
+# define SLAP_SOCK_SET_READ(fd) FD_SET((fd), &slap_daemon.sd_readers)
+# define SLAP_SOCK_SET_WRITE(fd) FD_SET((fd), &slap_daemon.sd_writers)
+
+# define SLAP_EVENT_MAX slap_daemon.sd_nfds
+# define SLAP_SELECT_ADDTEST(s) do { \
+ if ((s) >= slap_daemon.sd_nfds) slap_daemon.sd_nfds = (s)+1; \
+} while (0)
+# endif /* ! HAVE_WINSOCK */
+
+# define SLAP_SOCK_CLR_READ(fd) FD_CLR((fd), &slap_daemon.sd_readers)
+# define SLAP_SOCK_CLR_WRITE(fd) FD_CLR((fd), &slap_daemon.sd_writers)
+
+# define SLAP_SOCK_ADD(s, l) do { \
+ SLAP_SELECT_ADDTEST((s)); \
+ FD_SET((s), &slap_daemon.sd_actives); \
+ FD_SET((s), &slap_daemon.sd_readers); \
+} while (0)
+
+# define SLAP_SOCK_DEL(s) do { \
+ FD_CLR((s), &slap_daemon.sd_actives); \
+ FD_CLR((s), &slap_daemon.sd_readers); \
+ FD_CLR((s), &slap_daemon.sd_writers); \
+} while (0)
+
+# define SLAP_EVENT_IS_READ(fd) FD_ISSET((fd), &readfds)
+# define SLAP_EVENT_IS_WRITE(fd) FD_ISSET((fd), &writefds)
+
+# define SLAP_EVENT_CLR_READ(fd) FD_CLR((fd), &readfds)
+# define SLAP_EVENT_CLR_WRITE(fd) FD_CLR((fd), &writefds)
+
+# define SLAP_EVENT_WAIT(tvp, nsp) do { \
+ *(nsp) = select( SLAP_EVENT_MAX, &readfds, \
+ nwriters > 0 ? &writefds : NULL, NULL, (tvp) ); \
+} while (0)
+#endif /* ! epoll && ! /dev/poll */
#ifdef HAVE_SLP
/*
static char** slapd_srvurls = NULL;
static SLPHandle slapd_hslp = 0;
int slapd_register_slp = 0;
+const char *slapd_slp_attrs = NULL;
+
+static SLPError slapd_slp_cookie;
-void slapd_slp_init( const char* urls ) {
+static void
+slapd_slp_init( const char* urls )
+{
int i;
+ SLPError err;
slapd_srvurls = ldap_str2charray( urls, " " );
- if( slapd_srvurls == NULL ) return;
+ 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) {
+ 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 *) ch_realloc( slapd_srvurls[i],
ch_free( host );
}
- } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
+ } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0 ) {
char *host = ldap_pvt_get_fqdn( NULL );
if ( host != NULL ) {
slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
}
/* open the SLP handle */
- SLPOpen( "en", 0, &slapd_hslp );
+ err = SLPOpen( "en", 0, &slapd_hslp );
+
+ if ( err != SLP_OK ) {
+ Debug( LDAP_DEBUG_CONNS, "daemon: SLPOpen() failed with %ld\n",
+ (long)err, 0, 0 );
+ }
}
-void slapd_slp_deinit() {
- if( slapd_srvurls == NULL ) return;
+static void
+slapd_slp_deinit( void )
+{
+ if ( slapd_srvurls == NULL ) return;
ldap_charray_free( slapd_srvurls );
slapd_srvurls = NULL;
SLPClose( slapd_hslp );
}
-void slapd_slp_regreport(
- SLPHandle hslp,
- SLPError errcode,
- void* cookie )
+static void
+slapd_slp_regreport(
+ SLPHandle hslp,
+ SLPError errcode,
+ void *cookie )
{
- /* empty report */
+ /* return the error code in the cookie */
+ *(SLPError*)cookie = errcode;
}
-void slapd_slp_reg() {
+static void
+slapd_slp_reg()
+{
int i;
+ SLPError err;
- if( slapd_srvurls == NULL ) return;
+ if ( slapd_srvurls == NULL ) return;
- for( i=0; slapd_srvurls[i] != NULL; i++ ) {
- if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
+ 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,
+ strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
{
- SLPReg( slapd_hslp,
+ err = SLPReg( slapd_hslp,
slapd_srvurls[i],
SLP_LIFETIME_MAXIMUM,
"ldap",
- "",
- 1,
+ (slapd_slp_attrs) ? slapd_slp_attrs : "",
+ SLP_TRUE,
slapd_slp_regreport,
- NULL );
+ &slapd_slp_cookie );
+
+ if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: SLPReg(%s) failed with %ld, cookie = %ld\n",
+ slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
+ }
}
}
}
-void slapd_slp_dereg() {
+static void
+slapd_slp_dereg( void )
+{
int i;
+ SLPError err;
- if( slapd_srvurls == NULL ) return;
+ if ( slapd_srvurls == NULL ) return;
- for( i=0; slapd_srvurls[i] != NULL; i++ ) {
- SLPDereg( slapd_hslp,
+ for ( i = 0; slapd_srvurls[i] != NULL; i++ ) {
+ err = SLPDereg( slapd_hslp,
slapd_srvurls[i],
slapd_slp_regreport,
- NULL );
+ &slapd_slp_cookie );
+
+ if ( err != SLP_OK || slapd_slp_cookie != SLP_OK ) {
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: SLPDereg(%s) failed with %ld, cookie = %ld\n",
+ slapd_srvurls[i], (long)err, (long)slapd_slp_cookie );
+ }
}
}
#endif /* HAVE_SLP */
* idletimeout. The underlying event handler may record the Listener
* argument to differentiate Listener's from real sessions.
*/
-static void slapd_add(ber_socket_t s, int isactive, Listener *sl) {
+static void
+slapd_add( ber_socket_t s, int isactive, Listener *sl )
+{
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
assert( SLAP_SOCK_NOT_ACTIVE(s) );
- if ( isactive ) {
- slap_daemon.sd_nactives++;
- }
+ if ( isactive ) slap_daemon.sd_nactives++;
- SLAP_ADD_SOCK(s, sl);
+ SLAP_SOCK_ADD(s, sl);
- Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr\n",
- (long) s, 0, 0 );
+ Debug( LDAP_DEBUG_CONNS, "daemon: added %ldr%s listener=%p\n",
+ (long) s, isactive ? " (active)" : "", (void *)sl );
+
+ ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
+
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ WAKE_LISTENER(1);
+#endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
+}
+
+/*
+ * NOTE: unused
+ */
+void
+slapd_sd_lock( void )
+{
+ ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
+}
+
+/*
+ * NOTE: unused
+ */
+void
+slapd_sd_unlock( void )
+{
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
}
/*
* Remove the descriptor from daemon control
*/
-void slapd_remove(ber_socket_t s, int wasactive, int wake) {
+void
+slapd_remove(
+ ber_socket_t s,
+ Sockbuf *sb,
+ int wasactive,
+ int wake,
+ int locked )
+{
int waswriter;
- ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
+ int wasreader;
+
+ if ( !locked )
+ ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
+
+ assert( SLAP_SOCK_IS_ACTIVE( s ));
+
+ if ( wasactive ) slap_daemon.sd_nactives--;
- if ( wasactive ) {
- slap_daemon.sd_nactives--;
- }
waswriter = SLAP_SOCK_IS_WRITE(s);
+ wasreader = SLAP_SOCK_IS_READ(s);
Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
- (long) s, SLAP_SOCK_IS_READ(s) ? "r" : "",
+ (long) s,
+ wasreader ? "r" : "",
waswriter ? "w" : "" );
+
if ( waswriter ) slap_daemon.sd_nwriters--;
- SLAP_DEL_SOCK(s);
+ SLAP_SOCK_DEL(s);
+
+ if ( sb )
+ ber_sockbuf_free(sb);
/* If we ran out of file descriptors, we dropped a listener from
* the select() loop. Now that we're removing a session from our
if ( emfile ) {
int i;
for ( i = 0; slap_listeners[i] != NULL; i++ ) {
- if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
- if ( slap_listeners[i]->sl_sd == s ) continue;
- if ( slap_listeners[i]->sl_is_mute ) {
- slap_listeners[i]->sl_is_mute = 0;
- emfile--;
- break;
- }
+ Listener *lr = slap_listeners[i];
+
+ if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
+ if ( lr->sl_sd == s ) continue;
+ if ( lr->sl_mute ) {
+ lr->sl_mute = 0;
+ emfile--;
+ break;
}
}
/* Walked the entire list without enabling anything; emfile
* counter is stale. Reset it.
*/
- if ( slap_listeners[i] == NULL )
- emfile = 0;
+ if ( slap_listeners[i] == NULL ) emfile = 0;
}
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) {
+void
+slapd_clr_write( ber_socket_t s, int wake )
+{
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
- assert( SLAP_SOCK_IS_ACTIVE( s ));
if ( SLAP_SOCK_IS_WRITE( s )) {
+ assert( SLAP_SOCK_IS_ACTIVE( s ));
+
SLAP_SOCK_CLR_WRITE( s );
slap_daemon.sd_nwriters--;
}
WAKE_LISTENER(wake);
}
-void slapd_set_write(ber_socket_t s, int wake) {
+void
+slapd_set_write( ber_socket_t s, int wake )
+{
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
assert( SLAP_SOCK_IS_ACTIVE( s ));
+
if ( !SLAP_SOCK_IS_WRITE( s )) {
SLAP_SOCK_SET_WRITE( s );
slap_daemon.sd_nwriters++;
WAKE_LISTENER(wake);
}
-void slapd_clr_read(ber_socket_t s, int wake) {
+int
+slapd_clr_read( ber_socket_t s, int wake )
+{
+ int rc = 1;
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
- assert( SLAP_SOCK_IS_ACTIVE( s ));
- SLAP_SOCK_CLR_READ( s );
-
+ if ( SLAP_SOCK_IS_ACTIVE( s )) {
+ SLAP_SOCK_CLR_READ( s );
+ rc = 0;
+ }
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
- WAKE_LISTENER(wake);
+ if ( !rc )
+ WAKE_LISTENER(wake);
+ return rc;
}
-void slapd_set_read(ber_socket_t s, int wake) {
+void
+slapd_set_read( ber_socket_t s, int wake )
+{
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
assert( SLAP_SOCK_IS_ACTIVE( s ));
- if (!SLAP_SOCK_IS_READ( s ))
- SLAP_SOCK_SET_READ( s );
+ if (!SLAP_SOCK_IS_READ( s )) SLAP_SOCK_SET_READ( s );
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
WAKE_LISTENER(wake);
}
-static void slapd_close(ber_socket_t s) {
+static void
+slapd_close( ber_socket_t s )
+{
Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
(long) s, 0, 0 );
tcp_close(s);
}
-static void slap_free_listener_addresses(struct sockaddr **sal)
+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);
- }
-
+ if (sal == NULL) return;
+ for (sap = sal; *sap != NULL; sap++) ch_free(*sap);
ch_free(sal);
}
#if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
-static int get_url_perms(
+static int
+get_url_perms(
char **exts,
mode_t *perms,
int *crit )
{
int i;
- assert( exts );
- assert( perms );
- assert( crit );
+ assert( exts != NULL );
+ assert( perms != NULL );
+ assert( crit != NULL );
*crit = 0;
for ( i = 0; exts[ i ]; i++ ) {
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 ( 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;
switch (strlen(value)) {
case 4:
/* skip leading '0' */
- if ( value[ 0 ] != '0' ) {
- return LDAP_OTHER;
- }
+ if ( value[ 0 ] != '0' ) return LDAP_OTHER;
value++;
case 3:
v = value[ j ] - '0';
- if ( v < 0 || v > 7 ) {
- return LDAP_OTHER;
- }
+ if ( v < 0 || v > 7 ) return LDAP_OTHER;
p |= v << 3*(2-j);
}
#endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
/* port = 0 indicates AF_LOCAL */
-static int slap_get_listener_addresses(
+static int
+slap_get_listener_addresses(
const char *host,
unsigned short port,
- struct sockaddr ***sal)
+ struct sockaddr ***sal )
{
struct sockaddr **sap;
#ifdef LDAP_PF_LOCAL
if ( port == 0 ) {
*sal = ch_malloc(2 * sizeof(void *));
- if (*sal == NULL) {
- return -1;
- }
+ if (*sal == NULL) return -1;
sap = *sal;
*sap = ch_malloc(sizeof(struct sockaddr_un));
- if (*sap == NULL)
- goto errexit;
+ if (*sap == NULL) goto errexit;
sap[1] = NULL;
if ( strlen(host) >
- (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
+ (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) )
+ {
Debug( LDAP_DEBUG_ANY,
- "daemon: domain socket path (%s) too long in URL",
- host, 0, 0);
+ "daemon: domain socket path (%s) too long in URL",
+ host, 0, 0);
goto errexit;
}
(*sap)->sa_family = AF_LOCAL;
strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
} else
-#endif
+#endif /* LDAP_PF_LOCAL */
{
#ifdef HAVE_GETADDRINFO
struct addrinfo hints, *res, *sai;
snprintf(serv, sizeof serv, "%d", port);
if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
- Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
+ Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo() failed: %s\n",
AC_GAI_STRERROR(err), 0, 0);
return -1;
}
/* EMPTY */ ;
}
*sal = ch_calloc(n, sizeof(void *));
- if (*sal == NULL) {
- return -1;
- }
+ if (*sal == NULL) return -1;
sap = *sal;
*sap = NULL;
*(struct sockaddr_in6 *)*sap =
*((struct sockaddr_in6 *)sai->ai_addr);
break;
-# endif
+# endif /* LDAP_PF_INET6 */
case AF_INET:
*sap = ch_malloc(sizeof(struct sockaddr_in));
if (*sap == NULL) {
}
freeaddrinfo(res);
-#else
+
+#else /* ! HAVE_GETADDRINFO */
int i, n = 1;
struct in_addr in;
struct hostent *he = NULL;
he = gethostbyname( host );
if( he == NULL ) {
Debug( LDAP_DEBUG_ANY,
- "daemon: invalid host %s", host, 0, 0);
+ "daemon: invalid host %s", host, 0, 0);
return -1;
}
- for (n = 0; he->h_addr_list[n]; n++) ;
+ for (n = 0; he->h_addr_list[n]; n++) /* empty */;
}
*sal = ch_malloc((n+1) * sizeof(void *));
- if (*sal == NULL) {
- return -1;
- }
+ if (*sal == NULL) return -1;
sap = *sal;
for ( i = 0; i<n; i++ ) {
sap[i] = ch_malloc(sizeof(struct sockaddr_in));
- if (*sap == NULL) {
- goto errexit;
- }
+ if (*sap == NULL) goto errexit;
+
(void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
sap[i]->sa_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) );
- }
+ AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr,
+ he ? (struct in_addr *)he->h_addr_list[i] : &in,
+ sizeof(struct in_addr) );
}
sap[i] = NULL;
-#endif
+#endif /* ! HAVE_GETADDRINFO */
}
return 0;
return -1;
}
-static int slap_open_listener(
+static int
+slap_open_listener(
const char* url,
int *listeners,
- int *cur
- )
+ int *cur )
{
int num, tmp, rc;
Listener l;
}
l.sl_url.bv_val = NULL;
- l.sl_is_mute = 0;
+ l.sl_mute = 0;
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ l.sl_busy = 0;
+#endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
#ifndef HAVE_TLS
if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
- Debug( LDAP_DEBUG_ANY,
- "daemon: TLS not supported (%s)\n",
+ Debug( LDAP_DEBUG_ANY, "daemon: TLS not supported (%s)\n",
url, 0, 0 );
ldap_free_urldesc( lud );
return -1;
}
- if(! lud->lud_port ) {
- lud->lud_port = LDAP_PORT;
- }
+ if(! lud->lud_port ) lud->lud_port = LDAP_PORT;
-#else
+#else /* HAVE_TLS */
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
+#endif /* HAVE_TLS */
port = (unsigned short) lud->lud_port;
} else {
err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
}
-#else
+#else /* ! LDAP_PF_LOCAL */
Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
url, 0, 0);
ldap_free_urldesc( lud );
return -1;
-#endif
+#endif /* ! LDAP_PF_LOCAL */
} else {
if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
|| strcmp(lud->lud_host, "*") == 0 )
err = slap_get_listener_addresses(lud->lud_host, port, &sal);
}
}
+
#ifdef LDAP_CONNECTIONLESS
l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
-#endif
+#endif /* LDAP_CONNECTIONLESS */
#if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
if ( lud->lud_exts ) {
#endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
ldap_free_urldesc( lud );
- if ( err ) {
- return -1;
- }
+ 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++ );
+ for ( num=0; sal[num]; num++ ) /* empty */;
if ( num > 1 ) {
*listeners += num-1;
- slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
+ slap_listeners = ch_realloc( slap_listeners,
+ (*listeners + 1) * sizeof(Listener *) );
}
psal = sal;
case AF_INET6:
af = "IPv6";
break;
-#endif
+#endif /* LDAP_PF_INET6 */
#ifdef LDAP_PF_LOCAL
case AF_LOCAL:
af = "Local";
break;
-#endif
+#endif /* LDAP_PF_LOCAL */
default:
sal++;
continue;
}
+
#ifdef LDAP_CONNECTIONLESS
if( l.sl_is_udp ) socktype = SOCK_DGRAM;
-#endif
+#endif /* LDAP_CONNECTIONLESS */
+
l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
if ( l.sl_sd == AC_SOCKET_INVALID ) {
int err = sock_errno();
sal++;
continue;
}
+
#ifndef HAVE_WINSOCK
if ( l.sl_sd >= dtblsize ) {
Debug( LDAP_DEBUG_ANY,
sal++;
continue;
}
-#endif
+#endif /* ! HAVE_WINSOCK */
+
#ifdef LDAP_PF_LOCAL
if ( (*sal)->sa_family == AF_LOCAL ) {
- unlink ( ((struct sockaddr_un *)*sal)->sun_path );
+ unlink( ((struct sockaddr_un *)*sal)->sun_path );
} else
-#endif
+#endif /* LDAP_PF_LOCAL */
{
#ifdef SO_REUSEADDR
/* enable address reuse */
(char *) &tmp, sizeof(tmp) );
if ( rc == AC_SOCKET_ERROR ) {
int err = sock_errno();
- Debug( LDAP_DEBUG_ANY,
- "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
- (long) l.sl_sd, err, sock_errstr(err) );
+ Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
+ "setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
+ (long) l.sl_sd, err, sock_errstr(err) );
}
-#endif
+#endif /* SO_REUSEADDR */
}
switch( (*sal)->sa_family ) {
/* Try to use IPv6 sockets for IPv6 only */
tmp = 1;
rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
- (char *) &tmp, sizeof(tmp) );
+ (char *) &tmp, sizeof(tmp) );
if ( rc == AC_SOCKET_ERROR ) {
int err = sock_errno();
- Debug( LDAP_DEBUG_ANY,
- "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
- (long) l.sl_sd, err, sock_errstr(err) );
+ Debug( LDAP_DEBUG_ANY, "slapd(%ld): "
+ "setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
+ (long) l.sl_sd, err, sock_errstr(err) );
}
-#endif
+#endif /* IPV6_V6ONLY */
addrlen = sizeof(struct sockaddr_in6);
break;
-#endif
+#endif /* LDAP_PF_INET6 */
+
#ifdef LDAP_PF_LOCAL
case AF_LOCAL:
- addrlen = sizeof(struct sockaddr_un);
+#ifdef LOCAL_CREDS
+ {
+ int one = 1;
+ setsockopt( l.sl_sd, 0, LOCAL_CREDS, &one, sizeof( one ) );
+ }
+#endif /* LOCAL_CREDS */
+
+ addrlen = sizeof( struct sockaddr_un );
break;
-#endif
+#endif /* LDAP_PF_LOCAL */
}
- if (bind(l.sl_sd, *sal, addrlen)) {
+#ifdef LDAP_PF_LOCAL
+ /* create socket with all permissions set for those systems
+ * that honor permissions on sockets (e.g. Linux); typically,
+ * only write is required. To exploit filesystem permissions,
+ * place the socket in a directory and use directory's
+ * permissions. Need write perms to the directory to
+ * create/unlink the socket; likely need exec perms to access
+ * the socket (ITS#4709) */
+ {
+ mode_t old_umask;
+
+ if ( (*sal)->sa_family == AF_LOCAL ) {
+ old_umask = umask( 0 );
+ }
+#endif /* LDAP_PF_LOCAL */
+ rc = bind( l.sl_sd, *sal, addrlen );
+#ifdef LDAP_PF_LOCAL
+ if ( (*sal)->sa_family == AF_LOCAL ) {
+ umask( old_umask );
+ }
+ }
+#endif /* LDAP_PF_LOCAL */
+ if ( rc ) {
err = sock_errno();
- Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
- (long) l.sl_sd, err, sock_errstr(err) );
+ Debug( LDAP_DEBUG_ANY,
+ "daemon: bind(%ld) failed errno=%d (%s)\n",
+ (long)l.sl_sd, err, sock_errstr( err ) );
tcp_close( l.sl_sd );
sal++;
continue;
}
- switch ( (*sal)->sa_family ) {
+ switch ( (*sal)->sa_family ) {
#ifdef LDAP_PF_LOCAL
- case AF_LOCAL: {
- char *addr = ((struct sockaddr_un *)*sal)->sun_path;
-#if 0 /* don't muck with socket perms */
- if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
- int err = sock_errno();
- Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
- (long) l.sl_sd, err, sock_errstr(err) );
- tcp_close( l.sl_sd );
- slap_free_listener_addresses(psal);
- return -1;
- }
-#endif
- 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,
+ case AF_LOCAL: {
+ char *addr = ((struct sockaddr_un *)*sal)->sun_path;
+ 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;
+ } break;
#endif /* LDAP_PF_LOCAL */
- case AF_INET: {
- char *s;
+ 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;
+ char addr[INET_ADDRSTRLEN];
+ inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
+ addr, sizeof(addr) );
+ s = addr;
+#else /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
+ s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
+#endif /* ! HAVE_GETADDRINFO || ! HAVE_INET_NTOP */
+ 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",
+ 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;
+ l.sl_name.bv_len = strlen( l.sl_name.bv_val );
+ } break;
#endif /* LDAP_PF_INET6 */
- default:
- Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
- (int) (*sal)->sa_family, 0, 0 );
- 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++;
+ default:
+ Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
+ (int) (*sal)->sa_family, 0, 0 );
+ break;
+ }
- } /* while ( *sal != NULL ) */
+ 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++;
+ }
slap_free_listener_addresses(psal);
- if ( l.sl_url.bv_val == NULL )
- {
+ if ( l.sl_url.bv_val == NULL ) {
Debug( LDAP_DEBUG_TRACE,
"slap_open_listener: failed on %s\n", url, 0, 0 );
return -1;
}
- Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
+ Debug( LDAP_DEBUG_TRACE, "daemon: listener initialized %s\n",
l.sl_url.bv_val, 0, 0 );
return 0;
}
static int sockinit(void);
static int sockdestroy(void);
-int slapd_daemon_init( const char *urls )
+int
+slapd_daemon_init( const char *urls )
{
int i, j, n, rc;
char **u;
Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
urls ? urls : "<null>", 0, 0 );
- if( (rc = sockinit()) != 0 ) {
- return rc;
- }
+
+ ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
+#ifdef HAVE_TCPD
+ ldap_pvt_thread_mutex_init( &slap_daemon.sd_tcpd_mutex );
+#endif /* TCP Wrappers */
+
+ if( (rc = sockinit()) != 0 ) return rc;
#ifdef HAVE_SYSCONF
dtblsize = sysconf( _SC_OPEN_MAX );
#elif HAVE_GETDTABLESIZE
dtblsize = getdtablesize();
-#else
+#else /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
dtblsize = FD_SETSIZE;
-#endif
+#endif /* ! HAVE_SYSCONF && ! HAVE_GETDTABLESIZE */
/* open a pipe (or something equivalent connected to itself).
* we write a byte on this fd whenever we catch a signal. The main
return rc;
}
- SLAP_SOCK_SET_INIT;
+ SLAP_SOCK_INIT;
- if( urls == NULL ) {
- urls = "ldap:///";
- }
+ if( urls == NULL ) urls = "ldap:///";
u = ldap_str2charray( urls, " " );
if( u == NULL || u[0] == NULL ) {
Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
urls, 0, 0 );
+ if ( u )
+ ldap_charray_free( u );
return -1;
}
Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
i, 0, 0 );
+
#ifdef HAVE_SLP
if( slapd_register_slp ) {
slapd_slp_init( urls );
slapd_slp_reg();
}
-#endif
+#endif /* HAVE_SLP */
ldap_charray_free( u );
- ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
+
return !i;
}
int
-slapd_daemon_destroy(void)
+slapd_daemon_destroy( void )
{
connections_destroy();
tcp_close( wake_sds[1] );
slapd_slp_dereg();
slapd_slp_deinit();
}
-#endif
+#endif /* HAVE_SLP */
+#ifdef HAVE_TCPD
+ ldap_pvt_thread_mutex_destroy( &slap_daemon.sd_tcpd_mutex );
+#endif /* TCP Wrappers */
+
+ ldap_pvt_thread_mutex_destroy( &slap_daemon.sd_mutex );
return 0;
}
static void
close_listeners(
- int remove
-)
+ int remove )
{
int l;
for ( l = 0; slap_listeners[l] != NULL; l++ ) {
- if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
- if ( remove )
- slapd_remove( slap_listeners[l]->sl_sd, 0, 0 );
+ Listener *lr = slap_listeners[l];
+
+ if ( lr->sl_sd != AC_SOCKET_INVALID ) {
+ if ( remove ) slapd_remove( lr->sl_sd, NULL, 0, 0, 0 );
+
#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 );
+ if ( lr->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
+ unlink( lr->sl_sa.sa_un_addr.sun_path );
}
#endif /* LDAP_PF_LOCAL */
- slapd_close( slap_listeners[l]->sl_sd );
+
+ slapd_close( lr->sl_sd );
+ }
+
+ if ( lr->sl_url.bv_val ) {
+ ber_memfree( lr->sl_url.bv_val );
}
- if ( slap_listeners[l]->sl_url.bv_val )
- ber_memfree( slap_listeners[l]->sl_url.bv_val );
- if ( slap_listeners[l]->sl_name.bv_val )
- ber_memfree( slap_listeners[l]->sl_name.bv_val );
- free ( slap_listeners[l] );
+
+ if ( lr->sl_name.bv_val ) {
+ ber_memfree( lr->sl_name.bv_val );
+ }
+
+ free( lr );
slap_listeners[l] = NULL;
}
}
static int
-slapd_handle_listener(
- Listener *sl
-)
+slap_listener(
+ Listener *sl )
{
Sockaddr from;
ber_socket_t s;
- socklen_t len = sizeof(from);
+ ber_socklen_t len = sizeof(from);
long id;
slap_ssf_t ssf = 0;
struct berval authid = BER_BVNULL;
#ifdef SLAPD_RLOOKUPS
char hbuf[NI_MAXHOST];
-#endif
+#endif /* SLAPD_RLOOKUPS */
char *dnsname = NULL;
char *peeraddr = NULL;
char peername[MAXPATHLEN + sizeof("PATH=")];
#elif defined(LDAP_PF_INET6)
char peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
-#else
+#else /* ! LDAP_PF_LOCAL && ! LDAP_PF_INET6 */
char peername[sizeof("IP=255.255.255.255:65336")];
#endif /* LDAP_PF_LOCAL */
+ Debug( LDAP_DEBUG_TRACE,
+ ">>> slap_listener(%s)\n",
+ sl->sl_url.bv_val, 0, 0 );
+
peername[0] = '\0';
#ifdef LDAP_CONNECTIONLESS
- if ( sl->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 ( sl->sl_is_udp < 2 ) {
- id = connection_init( sl->sl_sd, sl, "", "",
- CONN_IS_UDP, ssf, NULL );
- sl->sl_is_udp++;
- }
- return 1;
- }
-#endif
+ if ( sl->sl_is_udp ) return 1;
+#endif /* LDAP_CONNECTIONLESS */
# ifdef LDAP_PF_LOCAL
/* FIXME: apparently accept doesn't fill
# endif /* LDAP_PF_LOCAL */
s = accept( sl->sl_sd, (struct sockaddr *) &from, &len );
+
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ /* Resume the listener FD to allow concurrent-processing of
+ * additional incoming connections.
+ */
+ sl->sl_busy = 0;
+ WAKE_LISTENER(1);
+#endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
+
if ( s == AC_SOCKET_INVALID ) {
int err = sock_errno();
if(
#ifdef EMFILE
err == EMFILE ||
-#endif
+#endif /* EMFILE */
#ifdef ENFILE
err == ENFILE ||
-#endif
+#endif /* ENFILE */
0 )
{
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
emfile++;
/* Stop listening until an existing session closes */
- sl->sl_is_mute = 1;
+ sl->sl_mute = 1;
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
}
Debug( LDAP_DEBUG_ANY,
"daemon: accept(%ld) failed errno=%d (%s)\n",
- (long) sl->sl_sd, err,
- sock_errstr(err) );
+ (long) sl->sl_sd, err, sock_errstr(err) );
ldap_pvt_thread_yield();
return 0;
}
ldap_pvt_thread_yield();
return 0;
}
-#endif
+#endif /* ! HAVE_WINSOCK */
#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( SLAP_SOCK_NOT_ACTIVE( s ));
-
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
-#endif
+#endif /* LDAP_DEBUG */
#if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
#ifdef LDAP_PF_LOCAL
"slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
"errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
}
-#endif
+#endif /* SO_KEEPALIVE */
#ifdef TCP_NODELAY
/* enable no delay */
tmp = 1;
"slapd(%ld): setsockopt(TCP_NODELAY) failed "
"errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
}
-#endif
+#endif /* TCP_NODELAY */
}
-#endif
+#endif /* SO_KEEPALIVE || TCP_NODELAY */
+
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: listen=%ld, new connection on %ld\n",
+ (long) sl->sl_sd, (long) s, 0 );
- Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
- (long) s, 0, 0 );
switch ( from.sa_addr.sa_family ) {
# ifdef LDAP_PF_LOCAL
case AF_LOCAL:
if( getpeereid( s, &uid, &gid ) == 0 ) {
authid.bv_val = ch_malloc(
- sizeof("uidnumber=4294967295+gidnumber=4294967295,"
- "cn=peercred,cn=external,cn=auth"));
+ STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
+ "cn=peercred,cn=external,cn=auth" ) + 1 );
authid.bv_len = sprintf( authid.bv_val,
- "uidnumber=%d+gidnumber=%d,"
+ "gidNumber=%d+uidNumber=%d,"
"cn=peercred,cn=external,cn=auth",
- (int) uid, (int) gid);
+ (int) gid, (int) uid );
+ assert( authid.bv_len <=
+ STRLENOF( "gidNumber=4294967295+uidNumber=4294967295,"
+ "cn=peercred,cn=external,cn=auth" ) );
}
}
dnsname = "local";
if ( ( from.sa_addr.sa_family == AF_INET )
#ifdef LDAP_PF_INET6
|| ( from.sa_addr.sa_family == AF_INET6 )
-#endif
- ) {
+#endif /* LDAP_PF_INET6 */
+ )
+ {
+ dnsname = NULL;
#ifdef SLAPD_RLOOKUPS
if ( use_reverse_lookup ) {
char *herr;
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,
+ int rc;
+ ldap_pvt_thread_mutex_lock( &slap_daemon.sd_tcpd_mutex );
+ rc = hosts_ctl("slapd",
dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
- 0, 0 );
- slapd_close(s);
- return 0;
+ SLAP_STRING_UNKNOWN );
+ ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_tcpd_mutex );
+ if ( !rc ) {
+ /* 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);
+ return 0;
+ }
}
#endif /* HAVE_TCPD */
}
peername,
#ifdef HAVE_TLS
sl->sl_is_tls ? CONN_IS_TLS : 0,
-#else
+#else /* ! HAVE_TLS */
0,
-#endif
+#endif /* ! HAVE_TLS */
ssf,
authid.bv_val ? &authid : NULL );
id, (long) s, peername, sl->sl_name.bv_val,
0 );
- slapd_add( s, 1, NULL );
return 0;
}
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+static void*
+slap_listener_thread(
+ void* ctx,
+ void* ptr )
+{
+ int rc;
+ Listener *sl = (Listener *)ptr;
+
+ rc = slap_listener( sl );
+
+ if( rc != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY,
+ "slap_listener_thread(%s): failed err=%d",
+ sl->sl_url.bv_val, rc, 0 );
+ }
+
+ return (void*)NULL;
+}
+
+static int
+slap_listener_activate(
+ Listener* sl )
+{
+ int rc;
+
+ Debug( LDAP_DEBUG_TRACE, "slap_listener_activate(%d): %s\n",
+ sl->sl_sd, sl->sl_busy ? "busy" : "", 0 );
+
+ sl->sl_busy++;
+
+ rc = ldap_pvt_thread_pool_submit( &connection_pool,
+ slap_listener_thread, (void *) sl );
+
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "listener_activate(%d): submit failed (%d)\n",
+ sl->sl_sd, rc, 0 );
+ }
+ return rc;
+}
+#endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
+
static void *
slapd_daemon_task(
- void *ptr
-)
+ void *ptr )
{
int l;
- time_t last_idle_check = 0;
+ time_t last_idle_check = 0;
struct timeval idle;
int ebadf = 0;
* 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_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;
slapd_add( wake_sds[0], 0, NULL );
for ( l = 0; slap_listeners[l] != NULL; l++ ) {
- if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
- continue;
+ 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, 1, slap_listeners[l] );
+ if ( slap_listeners[l]->sl_is_udp )
continue;
- }
-#endif
+#endif /* LDAP_CONNECTIONLESS */
- if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
+ if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN_BACKLOG ) == -1 ) {
int err = sock_errno();
#ifdef LDAP_PF_INET6
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) ) )
+ !memcmp( &sa6.sin6_addr, &in6addr_any,
+ sizeof(struct in6_addr) ) )
+ {
break;
+ }
}
if ( i < l ) {
/* We are already listening to in6addr_any */
Debug( LDAP_DEBUG_CONNS,
- "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
- 0, 0, 0 );
+ "daemon: Attempt to listen to 0.0.0.0 failed, "
+ "already listening on ::, assuming IPv4 included\n",
+ 0, 0, 0 );
slapd_close( slap_listeners[l]->sl_sd );
slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
continue;
}
}
}
-#endif
+#endif /* LDAP_PF_INET6 */
Debug( LDAP_DEBUG_ANY,
"daemon: listen(%s, 5) failed errno=%d (%s)\n",
slap_listeners[l]->sl_url.bv_val, err,
sock_errstr(err) );
- return( (void*)-1 );
+ return (void*)-1;
+ }
+
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ /* make the listening socket non-blocking */
+ if ( ber_pvt_socket_set_nonblock( slap_listeners[l]->sl_sd, 1 ) < 0 ) {
+ Debug( LDAP_DEBUG_ANY, "slapd_daemon_task: "
+ "set nonblocking on a listening socket failed\n",
+ 0, 0, 0 );
+ slapd_shutdown = 2;
+ return (void*)-1;
}
+#endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
slapd_add( slap_listeners[l]->sl_sd, 0, slap_listeners[l] );
}
if ( started_event != NULL ) {
ldap_pvt_thread_cond_signal( &started_event );
}
-#endif
+#endif /* HAVE_NT_SERVICE_MANAGER */
+
+#ifdef SLAP_SEM_LOAD_CONTROL
+ /*
+ * initialize count and lazyness of a semaphore
+ */
+ (void) ldap_lazy_sem_init(
+ SLAP_MAX_WORKER_THREADS + 4 /* max workers + margin */,
+ 4 /* lazyness */ );
+#endif /* SLAP_SEM_LOAD_CONTROL */
+
/* initialization complete. Here comes the loop. */
while ( !slapd_shutdown ) {
- ber_socket_t i;
- int ns, nwriters;
- int at;
- ber_socket_t nfds, nrfds, nwfds;
+ ber_socket_t i;
+ int ns, nwriters;
+ int at;
+ ber_socket_t nfds;
+#if SLAP_EVENTS_ARE_INDEXED
+ ber_socket_t nrfds, nwfds;
+#endif /* SLAP_EVENTS_ARE_INDEXED */
#define SLAPD_EBADF_LIMIT 16
- time_t now;
+ time_t now;
SLAP_EVENT_DECL;
struct timeval tv;
struct timeval *tvp;
- struct timeval *cat;
- time_t tdelta = 1;
+ struct timeval cat;
+ time_t tdelta = 1;
struct re_s* rtask;
+
now = slap_get_time();
- if( ( global_idletimeout > 0 ) &&
+ if ( ( global_idletimeout > 0 ) &&
difftime( last_idle_check +
- global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
+ global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 )
+ {
connections_timeout_idle( now );
last_idle_check = now;
}
tv = idle;
#ifdef SIGHUP
- if( slapd_gentle_shutdown ) {
+ if ( slapd_gentle_shutdown ) {
ber_socket_t active;
- if( slapd_gentle_shutdown == 1 ) {
+ if ( slapd_gentle_shutdown == 1 ) {
+ BackendDB *be;
Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
close_listeners( 1 );
frontendDB->be_restrictops |= SLAP_RESTRICT_OP_WRITES;
+ LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
+ be->be_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;
+ if ( active == 0 ) {
+ slapd_shutdown = 1;
break;
}
}
-#endif
-
+#endif /* SIGHUP */
at = 0;
ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
nwriters = slap_daemon.sd_nwriters;
- SLAP_EVENT_INIT;
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 )
- SLAP_SOCK_SET_MUTE( slap_listeners[l]->sl_sd );
- else
- if ( SLAP_SOCK_IS_MUTE( slap_listeners[l]->sl_sd ))
- SLAP_SOCK_CLR_MUTE( slap_listeners[l]->sl_sd );
+ Listener *lr = slap_listeners[l];
+
+ if ( lr->sl_sd == AC_SOCKET_INVALID ) continue;
+
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ if ( lr->sl_mute || lr->sl_busy )
+#else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
+ if ( lr->sl_mute )
+#endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
+ {
+ SLAP_SOCK_CLR_READ( lr->sl_sd );
+ } else {
+ SLAP_SOCK_SET_READ( lr->sl_sd );
+ }
}
+ SLAP_EVENT_INIT;
+
nfds = SLAP_EVENT_MAX;
- if ( global_idletimeout && slap_daemon.sd_nactives )
- at = 1;
+ if ( global_idletimeout && slap_daemon.sd_nactives ) at = 1;
ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
if ( at
#if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
&& ( tv.tv_sec || tv.tv_usec )
-#endif
+#endif /* HAVE_YIELDING_SELECT || NO_THREADS */
)
+ {
tvp = &tv;
- else
+ } else {
tvp = NULL;
+ }
- ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
- rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
- while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
- if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
- ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
+ ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
+ rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
+ while ( rtask && cat.tv_sec && cat.tv_sec <= now ) {
+ if ( ldap_pvt_runqueue_isrunning( &slapd_rq, rtask )) {
+ ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
} else {
- ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
- ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
- ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
+ ldap_pvt_runqueue_runtask( &slapd_rq, rtask );
+ ldap_pvt_runqueue_resched( &slapd_rq, rtask, 0 );
+ ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
ldap_pvt_thread_pool_submit( &connection_pool,
- rtask->routine, (void *) rtask );
- ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
+ rtask->routine, (void *) rtask );
+ ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
}
- rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
+ rtask = ldap_pvt_runqueue_next_sched( &slapd_rq, &cat );
}
- ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
-
- if ( cat != NULL ) {
- time_t diff = difftime( cat->tv_sec, now );
- if ( diff == 0 )
+ ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
+
+ if ( rtask && cat.tv_sec ) {
+ /* NOTE: diff __should__ always be >= 0,
+ * AFAI understand; however (ITS#4872),
+ * time_t might be unsigned in some systems,
+ * while difftime() returns a double */
+ double diff = difftime( cat.tv_sec, now );
+ if ( diff <= 0 ) {
diff = tdelta;
+ }
if ( tvp == NULL || diff < tv.tv_sec ) {
tv.tv_sec = diff;
tv.tv_usec = 0;
}
for ( l = 0; slap_listeners[l] != NULL; l++ ) {
- if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
- slap_listeners[l]->sl_is_mute )
+ Listener *lr = slap_listeners[l];
+
+ if ( lr->sl_sd == AC_SOCKET_INVALID ) {
continue;
+ }
+
+ if ( lr->sl_mute ) {
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: " SLAP_EVENT_FNAME ": "
+ "listen=%d muted\n",
+ lr->sl_sd, 0, 0 );
+ continue;
+ }
+
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ if ( lr->sl_busy ) {
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: " SLAP_EVENT_FNAME ": "
+ "listen=%d busy\n",
+ lr->sl_sd, 0, 0 );
+ continue;
+ }
+#endif /* SLAP_LIGHTWEIGHT_DISPATCHER */
Debug( LDAP_DEBUG_CONNS,
- "daemon: select: listen=%d active_threads=%d tvp=%s\n",
- slap_listeners[l]->sl_sd, at,
- tvp == NULL ? "NULL" : "zero" );
+ "daemon: " SLAP_EVENT_FNAME ": "
+ "listen=%d active_threads=%d tvp=%s\n",
+ lr->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
}
- switch(ns = SLAP_EVENT_WAIT(tvp))
- {
+ SLAP_EVENT_WAIT( tvp, &ns );
+ switch ( ns ) {
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 ) {
- Debug( LDAP_DEBUG_CONNS,
- "daemon: select failed (%d): %s\n",
- err, sock_errstr(err), 0 );
- slapd_shutdown = 2;
+ if ( err != EINTR ) {
+ ebadf++;
+
+ /* Don't log unless we got it twice in a row */
+ if ( !( ebadf & 1 ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "daemon: "
+ SLAP_EVENT_FNAME
+ "failed count %d "
+ "err (%d): %s\n",
+ ebadf, err,
+ sock_errstr( err ) );
+ }
+ if ( ebadf >= SLAPD_EBADF_LIMIT ) {
+ slapd_shutdown = 2;
+ }
}
}
continue;
case 0: /* timeout - let threads run */
ebadf = 0;
- Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
- 0, 0, 0 );
+#ifndef HAVE_YIELDING_SELECT
+ Debug( LDAP_DEBUG_CONNS, "daemon: " SLAP_EVENT_FNAME
+ "timeout - yielding\n",
+ 0, 0, 0 );
ldap_pvt_thread_yield();
+#endif /* ! HAVE_YIELDING_SELECT */
continue;
default: /* something happened - deal with it */
- if( slapd_shutdown ) continue;
+ if ( slapd_shutdown ) continue;
ebadf = 0;
- Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
- ns, 0, 0 );
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: activity on %d descriptor%s\n",
+ ns, ns != 1 ? "s" : "", 0 );
/* FALL THRU */
}
- /* We don't need to examine the event status for wake_sds;
- * if waking is set and we woke up, we'll read whatever
- * we can.
- */
- if ( waking ) {
+#if SLAP_EVENTS_ARE_INDEXED
+ if ( SLAP_EVENT_IS_READ( wake_sds[0] ) ) {
char c[BUFSIZ];
- tcp_read( wake_sds[0], c, sizeof(c) );
+ SLAP_EVENT_CLR_READ( wake_sds[0] );
waking = 0;
- ns--;
+ tcp_read( wake_sds[0], c, sizeof(c) );
+ Debug( LDAP_DEBUG_CONNS, "daemon: waked\n", 0, 0, 0 );
continue;
}
-#if SLAP_EVENTS_ARE_INDEXED
/* The event slot equals the descriptor number - this is
* true for Unix select and poll. We treat Windows select
* like this too, even though it's a kludge.
int rc;
if ( ns <= 0 ) break;
-
- if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
- continue;
-
- if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ))
- continue;
-
- ns--;
-
- rc = slapd_handle_listener(slap_listeners[l]);
-
+ if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ) continue;
#ifdef LDAP_CONNECTIONLESS
- /* This is a UDP session, let the data loop process it */
- if ( rc ) continue;
-#endif
-
- /* Don't need to look at this in the data loops */
+ if ( slap_listeners[l]->sl_is_udp ) continue;
+#endif /* LDAP_CONNECTIONLESS */
+ if ( !SLAP_EVENT_IS_READ( slap_listeners[l]->sl_sd ) ) continue;
+
+ /* clear events */
SLAP_EVENT_CLR_READ( slap_listeners[l]->sl_sd );
SLAP_EVENT_CLR_WRITE( slap_listeners[l]->sl_sd );
+ ns--;
+
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ rc = slap_listener_activate( slap_listeners[l] );
+#else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
+ rc = slap_listener( slap_listeners[l] );
+#endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
}
/* bypass the following tests if no descriptors left */
if ( ns <= 0 ) {
+#ifndef HAVE_YIELDING_SELECT
ldap_pvt_thread_yield();
+#endif /* HAVE_YIELDING_SELECT */
continue;
}
writefds.fd_array[i], "w", 0 );
}
-#else
+#else /* ! HAVE_WINSOCK */
nrfds = 0;
nwfds = 0;
for ( i = 0; i < nfds; i++ ) {
int r, w;
r = SLAP_EVENT_IS_READ( i );
- w = SLAP_EVENT_IS_WRITE( i );
+ /* writefds was not initialized if nwriters was zero */
+ w = nwriters ? SLAP_EVENT_IS_WRITE( i ) : 0;
if ( r || w ) {
Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
r ? "r" : "", w ? "w" : "" );
}
if ( ns <= 0 ) break;
}
-#endif
+#endif /* ! HAVE_WINSOCK */
Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
-
/* loop through the writers */
- for ( i = 0; nwfds > 0; i++ )
- {
+ for ( i = 0; nwfds > 0; i++ ) {
ber_socket_t wd;
#ifdef HAVE_WINSOCK
wd = writefds.fd_array[i];
-#else
- if( ! SLAP_EVENT_IS_WRITE( i ) ) {
- continue;
- }
+#else /* ! HAVE_WINSOCK */
+ if ( ! SLAP_EVENT_IS_WRITE( i ) ) continue;
wd = i;
-#endif
+#endif /* ! HAVE_WINSOCK */
+
+ SLAP_EVENT_CLR_WRITE( wd );
nwfds--;
Debug( LDAP_DEBUG_CONNS,
"daemon: write active on %d\n",
wd, 0, 0 );
+
/*
* NOTE: it is possible that the connection was closed
* and that the stream is now inactive.
- * connection_write() must valid the stream is still
+ * connection_write() must validate the stream is still
* active.
+ *
+ * ITS#4338: if the stream is invalid, there is no need to
+ * close it here. It has already been closed in connection.c.
*/
-
if ( connection_write( wd ) < 0 ) {
- if ( SLAP_EVENT_IS_READ( wd )) {
+ if ( SLAP_EVENT_IS_READ( wd ) ) {
SLAP_EVENT_CLR_READ( (unsigned) wd );
nrfds--;
}
- slapd_close( wd );
}
}
- for ( i = 0; nrfds > 0; i++ )
- {
+ for ( i = 0; nrfds > 0; i++ ) {
ber_socket_t rd;
#ifdef HAVE_WINSOCK
rd = readfds.fd_array[i];
-#else
- if( ! SLAP_EVENT_IS_READ( i ) ) {
- continue;
- }
+#else /* ! HAVE_WINSOCK */
+ if ( ! SLAP_EVENT_IS_READ( i ) ) continue;
rd = i;
-#endif
+#endif /* ! HAVE_WINSOCK */
+ SLAP_EVENT_CLR_READ( rd );
nrfds--;
Debug ( LDAP_DEBUG_CONNS,
* active.
*/
- if ( connection_read( rd ) < 0 ) {
- slapd_close( rd );
- }
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ connection_read_activate( rd );
+#else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
+ connection_read( rd );
+#endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
}
#else /* !SLAP_EVENTS_ARE_INDEXED */
/* FIXME */
* all other connections last (as we do for select), we would need
* to use multiple event handles and cascade them.
*
- * That seems like a bit of hassle. So the wake_sds check has moved
- * above. For epoll and kqueue we can associate arbitrary data with
+ * That seems like a bit of hassle. So the wake_sds check has been
+ * skipped. For epoll and kqueue we can associate arbitrary data with
* an event, so we could use pointers to the listener structure
* instead of just the file descriptor. For /dev/poll we have to
* search the listeners array for a matching descriptor.
+ *
+ * We now handle wake events when we see them; they are not given
+ * higher priority.
*/
#ifdef LDAP_DEBUG
Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
- for (i=0; i<ns; i++) {
+ for ( i = 0; i < ns; i++ ) {
int r, w;
- if ( SLAP_EVENT_IS_LISTENER(i)
+ /* Don't log listener events */
+ if ( SLAP_EVENT_IS_LISTENER( i )
#ifdef LDAP_CONNECTIONLESS
- && !((SLAP_EVENT_LISTENER(i))->sl_is_udp)
-#endif
- ) continue;
+ && !( (SLAP_EVENT_LISTENER( i ))->sl_is_udp )
+#endif /* LDAP_CONNECTIONLESS */
+ )
+ {
+ continue;
+ }
+
+ /* Don't log internal wake events */
+ if ( SLAP_EVENT_FD( i ) == wake_sds[0] ) continue;
r = SLAP_EVENT_IS_READ( i );
w = SLAP_EVENT_IS_WRITE( i );
r ? "r" : "", w ? "w" : "" );
}
}
-#endif
- for (i=0; i<ns; i++) {
+ Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
+#endif /* LDAP_DEBUG */
+
+ for ( i = 0; i < ns; i++ ) {
int rc = 1, fd;
- if ( SLAP_EVENT_IS_LISTENER(i) ) {
- rc = slapd_handle_listener( SLAP_EVENT_LISTENER( i ));
+ if ( SLAP_EVENT_IS_LISTENER( i ) ) {
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ rc = slap_listener_activate( SLAP_EVENT_LISTENER( i ) );
+#else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
+ rc = slap_listener( SLAP_EVENT_LISTENER( i ) );
+#endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
}
+
/* If we found a regular listener, rc is now zero, and we
* can skip the data portion. But if it was a UDP listener
* then rc is still 1, and we want to handle the data.
if ( rc ) {
fd = SLAP_EVENT_FD( i );
- if( SLAP_EVENT_IS_WRITE( i ) ) {
+ /* Handle wake events */
+ if ( fd == wake_sds[0] ) {
+ char c[BUFSIZ];
+ waking = 0;
+ tcp_read( wake_sds[0], c, sizeof(c) );
+ break;
+ }
+
+ if ( SLAP_EVENT_IS_WRITE( i ) ) {
Debug( LDAP_DEBUG_CONNS,
"daemon: write active on %d\n",
fd, 0, 0 );
+
+ SLAP_EVENT_CLR_WRITE( i );
+
/*
* 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( fd ) < 0 ) {
- slapd_close( fd );
continue;
}
}
- if( SLAP_EVENT_IS_READ( i ) ) {
+ /* If event is a read */
+ if ( SLAP_EVENT_IS_READ( i ) ) {
Debug( LDAP_DEBUG_CONNS,
"daemon: read active on %d\n",
fd, 0, 0 );
+
+ SLAP_EVENT_CLR_READ( i );
+#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
+ connection_read_activate( fd );
+#else /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
/*
* 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( fd ) < 0 ) {
- slapd_close( fd );
- }
+ connection_read( fd );
+#endif /* ! SLAP_LIGHTWEIGHT_DISPATCHER */
+ } else {
+ Debug( LDAP_DEBUG_CONNS,
+ "daemon: hangup on %d\n", fd, 0, 0 );
}
}
}
#endif /* SLAP_EVENTS_ARE_INDEXED */
+#ifndef HAVE_YIELDING_SELECT
ldap_pvt_thread_yield();
+#endif /* ! HAVE_YIELDING_SELECT */
}
- if( slapd_shutdown == 1 ) {
- Debug( LDAP_DEBUG_TRACE,
+ if ( slapd_shutdown == 1 ) {
+ Debug( LDAP_DEBUG_ANY,
"daemon: shutdown requested and initiated.\n",
0, 0, 0 );
} else if ( slapd_shutdown == 2 ) {
#ifdef HAVE_NT_SERVICE_MANAGER
- Debug( LDAP_DEBUG_TRACE,
+ Debug( LDAP_DEBUG_ANY,
"daemon: shutdown initiated by Service Manager.\n",
0, 0, 0);
#else /* !HAVE_NT_SERVICE_MANAGER */
- Debug( LDAP_DEBUG_TRACE,
+ Debug( LDAP_DEBUG_ANY,
"daemon: abnormal condition, shutdown initiated.\n",
0, 0, 0 );
#endif /* !HAVE_NT_SERVICE_MANAGER */
} else {
- Debug( LDAP_DEBUG_TRACE,
+ Debug( LDAP_DEBUG_ANY,
"daemon: no active streams, shutdown initiated.\n",
0, 0, 0 );
}
- if( slapd_gentle_shutdown != 2 ) {
- close_listeners ( 0 );
- }
+ if ( slapd_gentle_shutdown != 2 ) close_listeners ( 0 );
- free ( slap_listeners );
- slap_listeners = NULL;
-
- if( !slapd_gentle_shutdown ) {
+ if ( !slapd_gentle_shutdown ) {
slapd_abrupt_shutdown = 1;
connections_shutdown();
}
Debug( LDAP_DEBUG_ANY,
- "slapd shutdown: waiting for %d threads to terminate\n",
- ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
- ldap_pvt_thread_pool_destroy(&connection_pool, 1);
+ "slapd shutdown: waiting for %d threads to terminate\n",
+ ldap_pvt_thread_pool_backload( &connection_pool ), 0, 0 );
+ ldap_pvt_thread_pool_destroy( &connection_pool, 1 );
+
+ free( slap_listeners );
+ slap_listeners = NULL;
return NULL;
}
-int slapd_daemon( void )
+#ifdef LDAP_CONNECTIONLESS
+static int
+connectionless_init( void )
+{
+ int l;
+
+ for ( l = 0; slap_listeners[l] != NULL; l++ ) {
+ Listener *lr = slap_listeners[l];
+ long id;
+
+ if ( !lr->sl_is_udp ) {
+ continue;
+ }
+
+ id = connection_init( lr->sl_sd, lr, "", "",
+ CONN_IS_UDP, (slap_ssf_t) 0, NULL );
+
+ if ( id < 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "connectionless_init: failed on %s (%d)\n",
+ lr->sl_url, lr->sl_sd, 0 );
+ return -1;
+ }
+ lr->sl_is_udp++;
+ }
+
+ return 0;
+}
+#endif /* LDAP_CONNECTIONLESS */
+
+int
+slapd_daemon( void )
{
int rc;
connections_init();
+#ifdef LDAP_CONNECTIONLESS
+ connectionless_init();
+#endif /* LDAP_CONNECTIONLESS */
#define SLAPD_LISTENER_THREAD 1
#if defined( SLAPD_LISTENER_THREAD )
}
/* wait for the listener thread to complete */
- ldap_pvt_thread_join( listener_tid, (void *) NULL );
+ ldap_pvt_thread_join( listener_tid, (void *)NULL );
}
-#else
+#else /* ! SLAPD_LISTENER_THREAD */
/* experimental code */
slapd_daemon_task( NULL );
-#endif
+#endif /* ! SLAPD_LISTENER_THREAD */
return 0;
-
}
-int sockinit(void)
+static int
+sockinit( void )
{
#if defined( HAVE_WINSOCK2 )
- WORD wVersionRequested;
+ WORD wVersionRequested;
WSADATA wsaData;
int err;
/* The WinSock DLL is acceptable. Proceed. */
#elif defined( HAVE_WINSOCK )
WSADATA wsaData;
- if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
- return -1;
- }
-#endif
+ if ( WSAStartup( 0x0101, &wsaData ) != 0 ) return -1;
+#endif /* ! HAVE_WINSOCK2 && ! HAVE_WINSOCK */
+
return 0;
}
-int sockdestroy(void)
+static int
+sockdestroy( void )
{
#if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
WSACleanup();
-#endif
+#endif /* HAVE_WINSOCK2 || HAVE_WINSOCK */
+ SLAP_SOCK_DESTROY;
+
return 0;
}
*/
#if HAVE_NT_SERVICE_MANAGER && SIGBREAK
- if (is_NT_Service && sig == SIGBREAK)
- ;
- else
-#endif
+ if (is_NT_Service && sig == SIGBREAK) {
+ /* empty */;
+ } else
+#endif /* HAVE_NT_SERVICE_MANAGER && SIGBREAK */
#ifdef SIGHUP
- if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
+ if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0) {
slapd_gentle_shutdown = 1;
- else
-#endif
- slapd_shutdown = 1;
+ } else
+#endif /* SIGHUP */
+ {
+ slapd_shutdown = 1;
+ }
+
WAKE_LISTENER(1);
/* reinstall self */
}
-void slapd_add_internal(ber_socket_t s, int isactive) {
- slapd_add(s, isactive, NULL);
+void
+slapd_add_internal( ber_socket_t s, int isactive )
+{
+ slapd_add( s, isactive, NULL );
}
-Listener ** slapd_get_listeners(void) {
+Listener **
+slapd_get_listeners( void )
+{
return slap_listeners;
}
-void slap_wake_listener()
+void
+slap_wake_listener()
{
WAKE_LISTENER(1);
}
projects / openldap / blobdiff