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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /servers/slapd/back-monitor/conn.c
parentInitial commit. (diff)
downloadopenldap-upstream/2.5.13+dfsg.tar.xz
openldap-upstream/2.5.13+dfsg.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/back-monitor/conn.c')
-rw-r--r--servers/slapd/back-monitor/conn.c537
1 files changed, 537 insertions, 0 deletions
diff --git a/servers/slapd/back-monitor/conn.c b/servers/slapd/back-monitor/conn.c
new file mode 100644
index 0000000..fd3e014
--- /dev/null
+++ b/servers/slapd/back-monitor/conn.c
@@ -0,0 +1,537 @@
+/* conn.c - deal with connection subsystem */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2001-2022 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 Pierangelo Masarati.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "slap.h"
+#include "lutil.h"
+#include "back-monitor.h"
+
+static int
+monitor_subsys_conn_update(
+ Operation *op,
+ SlapReply *rs,
+ Entry *e );
+
+static int
+monitor_subsys_conn_create(
+ Operation *op,
+ SlapReply *rs,
+ struct berval *ndn,
+ Entry *e_parent,
+ Entry **ep );
+
+int
+monitor_subsys_conn_init(
+ BackendDB *be,
+ monitor_subsys_t *ms )
+{
+ monitor_info_t *mi;
+ Entry *e, **ep, *e_conn;
+ monitor_entry_t *mp;
+ char buf[ BACKMONITOR_BUFSIZE ];
+ struct berval bv;
+
+ assert( be != NULL );
+
+ ms->mss_update = monitor_subsys_conn_update;
+ ms->mss_create = monitor_subsys_conn_create;
+
+ mi = ( monitor_info_t * )be->be_private;
+
+ if ( monitor_cache_get( mi, &ms->mss_ndn, &e_conn ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to get entry \"%s\"\n",
+ ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ mp = ( monitor_entry_t * )e_conn->e_private;
+ mp->mp_children = NULL;
+ ep = &mp->mp_children;
+
+ /*
+ * Max file descriptors
+ */
+ BER_BVSTR( &bv, "cn=Max File Descriptors" );
+ e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+ mi->mi_oc_monitorCounterObject, NULL, NULL );
+
+ if ( e == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to create entry \"%s,%s\"\n",
+ bv.bv_val, ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ if ( dtblsize ) {
+ bv.bv_val = buf;
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%d", dtblsize );
+
+ } else {
+ BER_BVSTR( &bv, "0" );
+ }
+ attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
+
+ mp = monitor_entrypriv_create();
+ if ( mp == NULL ) {
+ return -1;
+ }
+ e->e_private = ( void * )mp;
+ mp->mp_info = ms;
+ mp->mp_flags = ms->mss_flags \
+ | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
+ mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
+
+ if ( monitor_cache_add( mi, e ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to add entry \"cn=Total,%s\"\n",
+ ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ *ep = e;
+ ep = &mp->mp_next;
+
+ /*
+ * Total conns
+ */
+ BER_BVSTR( &bv, "cn=Total" );
+ e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+ mi->mi_oc_monitorCounterObject, NULL, NULL );
+
+ if ( e == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to create entry \"cn=Total,%s\"\n",
+ ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ BER_BVSTR( &bv, "-1" );
+ attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
+
+ mp = monitor_entrypriv_create();
+ if ( mp == NULL ) {
+ return -1;
+ }
+ e->e_private = ( void * )mp;
+ mp->mp_info = ms;
+ mp->mp_flags = ms->mss_flags \
+ | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
+ mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
+
+ if ( monitor_cache_add( mi, e ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to add entry \"cn=Total,%s\"\n",
+ ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ *ep = e;
+ ep = &mp->mp_next;
+
+ /*
+ * Current conns
+ */
+ BER_BVSTR( &bv, "cn=Current" );
+ e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+ mi->mi_oc_monitorCounterObject, NULL, NULL );
+
+ if ( e == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to create entry \"cn=Current,%s\"\n",
+ ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ BER_BVSTR( &bv, "0" );
+ attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
+
+ mp = monitor_entrypriv_create();
+ if ( mp == NULL ) {
+ return -1;
+ }
+ e->e_private = ( void * )mp;
+ mp->mp_info = ms;
+ mp->mp_flags = ms->mss_flags \
+ | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
+ mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
+
+ if ( monitor_cache_add( mi, e ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_init: "
+ "unable to add entry \"cn=Current,%s\"\n",
+ ms->mss_ndn.bv_val );
+ return( -1 );
+ }
+
+ *ep = e;
+ ep = &mp->mp_next;
+
+ monitor_cache_release( mi, e_conn );
+
+ return( 0 );
+}
+
+static int
+monitor_subsys_conn_update(
+ Operation *op,
+ SlapReply *rs,
+ Entry *e )
+{
+ monitor_info_t *mi = ( monitor_info_t * )op->o_bd->be_private;
+
+ long n = -1;
+ static struct berval total_bv = BER_BVC( "cn=total" ),
+ current_bv = BER_BVC( "cn=current" );
+ struct berval rdn;
+
+ assert( mi != NULL );
+ assert( e != NULL );
+
+ dnRdn( &e->e_nname, &rdn );
+
+ if ( dn_match( &rdn, &total_bv ) ) {
+ n = connections_nextid() - SLAPD_SYNC_SYNCCONN_OFFSET;
+
+ } else if ( dn_match( &rdn, &current_bv ) ) {
+ Connection *c;
+ ber_socket_t connindex;
+
+ for ( n = 0, c = connection_first( &connindex );
+ c != NULL;
+ n++, c = connection_next( c, &connindex ) )
+ {
+ /* Ignore outbound connections */
+ if ( c->c_conn_state == SLAP_C_CLIENT )
+ n--;
+ }
+ connection_done( c );
+ }
+
+ if ( n != -1 ) {
+ Attribute *a;
+ char buf[LDAP_PVT_INTTYPE_CHARS(long)];
+ ber_len_t len;
+
+ a = attr_find( e->e_attrs, mi->mi_ad_monitorCounter );
+ if ( a == NULL ) {
+ return( -1 );
+ }
+
+ snprintf( buf, sizeof( buf ), "%ld", n );
+ len = strlen( buf );
+ if ( len > a->a_vals[ 0 ].bv_len ) {
+ a->a_vals[ 0 ].bv_val = ber_memrealloc( a->a_vals[ 0 ].bv_val, len + 1 );
+ }
+ a->a_vals[ 0 ].bv_len = len;
+ AC_MEMCPY( a->a_vals[ 0 ].bv_val, buf, len + 1 );
+
+ /* FIXME: touch modifyTimestamp? */
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+conn_create(
+ monitor_info_t *mi,
+ Connection *c,
+ Entry **ep,
+ monitor_subsys_t *ms )
+{
+ monitor_entry_t *mp;
+ struct tm tm;
+ char buf[ BACKMONITOR_BUFSIZE ];
+ char buf2[ LDAP_LUTIL_GENTIME_BUFSIZE ];
+ char buf3[ LDAP_LUTIL_GENTIME_BUFSIZE ];
+
+ struct berval bv, ctmbv, mtmbv;
+ struct berval bv_unknown= BER_BVC("unknown");
+
+ Entry *e;
+
+ assert( c != NULL );
+ assert( ep != NULL );
+
+ ldap_pvt_gmtime( &c->c_starttime, &tm );
+
+ ctmbv.bv_len = lutil_gentime( buf2, sizeof( buf2 ), &tm );
+ ctmbv.bv_val = buf2;
+
+ ldap_pvt_gmtime( &c->c_activitytime, &tm );
+ mtmbv.bv_len = lutil_gentime( buf3, sizeof( buf3 ), &tm );
+ mtmbv.bv_val = buf3;
+
+ bv.bv_len = snprintf( buf, sizeof( buf ),
+ "cn=Connection %ld", c->c_connid );
+ bv.bv_val = buf;
+ e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+ mi->mi_oc_monitorConnection, &ctmbv, &mtmbv );
+
+ if ( e == NULL) {
+ Debug( LDAP_DEBUG_ANY,
+ "monitor_subsys_conn_create: "
+ "unable to create entry "
+ "\"cn=Connection %ld,%s\"\n",
+ c->c_connid,
+ ms->mss_dn.bv_val );
+ return( -1 );
+ }
+
+#ifdef MONITOR_LEGACY_CONN
+ /* NOTE: this will disappear, as the exploded data
+ * has been moved to dedicated attributes */
+ bv.bv_len = snprintf( buf, sizeof( buf ),
+ "%ld "
+ ": %ld "
+ ": %ld/%ld/%ld/%ld "
+ ": %ld/%ld/%ld "
+ ": %s%s%s%s%s%s "
+ ": %s "
+ ": %s "
+ ": %s "
+ ": %s "
+ ": %s "
+ ": %s "
+ ": %s",
+ c->c_connid,
+ (long) c->c_protocol,
+ c->c_n_ops_received, c->c_n_ops_executing,
+ c->c_n_ops_pending, c->c_n_ops_completed,
+
+ /* add low-level counters here */
+ c->c_n_get, c->c_n_read, c->c_n_write,
+
+ c->c_currentber ? "r" : "",
+ c->c_writewaiter ? "w" : "",
+ LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
+ LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
+ connection_state2str( c->c_conn_state ),
+ c->c_sasl_bind_in_progress ? "S" : "",
+
+ c->c_dn.bv_len ? c->c_dn.bv_val : SLAPD_ANONYMOUS,
+
+ c->c_listener_url.bv_val,
+ BER_BVISNULL( &c->c_peer_domain )
+ ? "" : c->c_peer_domain.bv_val,
+ BER_BVISNULL( &c->c_peer_name )
+ ? "" : c->c_peer_name.bv_val,
+ c->c_sock_name.bv_val,
+
+ buf2,
+ buf3 );
+ attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
+#endif /* MONITOR_LEGACY_CONN */
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%lu", c->c_connid );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionNumber, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", (long) c->c_protocol );
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionProtocol, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_received );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionOpsReceived, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_executing );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionOpsExecuting, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_pending );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionOpsPending, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_completed );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionOpsCompleted, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_async );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionOpsAsync, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_get );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionGet, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_read );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionRead, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_write );
+ attr_merge_one( e, mi->mi_ad_monitorConnectionWrite, &bv, NULL );
+
+ bv.bv_len = snprintf( buf, sizeof( buf ), "%s%s%s%s%s%s",
+ c->c_currentber ? "r" : "",
+ c->c_writewaiter ? "w" : "",
+ LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
+ LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
+ connection_state2str( c->c_conn_state ),
+ c->c_sasl_bind_in_progress ? "S" : "" );
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionMask, &bv, NULL );
+
+ attr_merge_one( e, mi->mi_ad_monitorConnectionAuthzDN,
+ &c->c_dn, &c->c_ndn );
+
+ /* NOTE: client connections leave the c_peer_* fields NULL */
+ assert( !BER_BVISNULL( &c->c_listener_url ) );
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionListener,
+ &c->c_listener_url, NULL );
+
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionPeerDomain,
+ BER_BVISNULL( &c->c_peer_domain ) ? &bv_unknown : &c->c_peer_domain,
+ NULL );
+
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionPeerAddress,
+ BER_BVISNULL( &c->c_peer_name ) ? &bv_unknown : &c->c_peer_name,
+ NULL );
+
+ assert( !BER_BVISNULL( &c->c_sock_name ) );
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionLocalAddress,
+ &c->c_sock_name, NULL );
+
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionStartTime, &ctmbv, NULL );
+
+ attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionActivityTime, &mtmbv, NULL );
+
+ mp = monitor_entrypriv_create();
+ if ( mp == NULL ) {
+ return LDAP_OTHER;
+ }
+ e->e_private = ( void * )mp;
+ mp->mp_info = ms;
+ mp->mp_flags = MONITOR_F_SUB | MONITOR_F_VOLATILE;
+
+ *ep = e;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+monitor_subsys_conn_create(
+ Operation *op,
+ SlapReply *rs,
+ struct berval *ndn,
+ Entry *e_parent,
+ Entry **ep )
+{
+ monitor_info_t *mi = ( monitor_info_t * )op->o_bd->be_private;
+
+ int rc = SLAP_CB_CONTINUE;
+ monitor_subsys_t *ms;
+
+ assert( mi != NULL );
+ assert( e_parent != NULL );
+ assert( ep != NULL );
+
+ ms = (( monitor_entry_t *)e_parent->e_private)->mp_info;
+
+ *ep = NULL;
+
+ if ( ndn == NULL ) {
+ Connection *c;
+ ber_socket_t connindex;
+ Entry *e = NULL,
+ *e_tmp = NULL;
+
+ /* create all the children of e_parent */
+ for ( c = connection_first( &connindex );
+ c != NULL;
+ c = connection_next( c, &connindex ) )
+ {
+ monitor_entry_t *mp;
+
+ /* ignore outbound for now, nothing to show */
+ if ( c->c_conn_state == SLAP_C_CLIENT )
+ continue;
+
+ if ( conn_create( mi, c, &e, ms ) != SLAP_CB_CONTINUE
+ || e == NULL )
+ {
+ for ( ; e_tmp != NULL; ) {
+ mp = ( monitor_entry_t * )e_tmp->e_private;
+ e = mp->mp_next;
+
+ ch_free( mp );
+ e_tmp->e_private = NULL;
+ entry_free( e_tmp );
+
+ e_tmp = e;
+ }
+ rc = rs->sr_err = LDAP_OTHER;
+ break;
+ }
+ mp = ( monitor_entry_t * )e->e_private;
+ mp->mp_next = e_tmp;
+ e_tmp = e;
+ }
+ connection_done( c );
+ *ep = e;
+
+ } else {
+ Connection *c;
+ ber_socket_t connindex;
+ unsigned long connid;
+ char *next = NULL;
+ static struct berval nconn_bv = BER_BVC( "cn=connection " );
+
+ rc = LDAP_NO_SUCH_OBJECT;
+
+ /* create exactly the required entry;
+ * the normalized DN must start with "cn=connection ",
+ * followed by the connection id, followed by
+ * the RDN separator "," */
+ if ( ndn->bv_len <= nconn_bv.bv_len
+ || strncmp( ndn->bv_val, nconn_bv.bv_val, nconn_bv.bv_len ) != 0 )
+ {
+ return -1;
+ }
+
+ connid = strtol( &ndn->bv_val[ nconn_bv.bv_len ], &next, 10 );
+ if ( next[ 0 ] != ',' ) {
+ return ( rs->sr_err = LDAP_OTHER );
+ }
+
+ for ( c = connection_first( &connindex );
+ c != NULL;
+ c = connection_next( c, &connindex ) )
+ {
+ if ( c->c_connid == connid ) {
+ rc = conn_create( mi, c, ep, ms );
+ if ( rc != SLAP_CB_CONTINUE ) {
+ rs->sr_err = rc;
+
+ } else if ( *ep == NULL ) {
+ rc = rs->sr_err = LDAP_OTHER;
+ }
+
+ break;
+ }
+ }
+
+ connection_done( c );
+ }
+
+ return rc;
+}
+