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[openldap] / servers / slapd / connection.c
index 46d84cfd9c1775a7f60879eaec025b97faeb560f..a8e3900b6e095babc59fae8919d987ad347ecb65 100644 (file)
@@ -1,6 +1,6 @@
 /* $OpenLDAP$ */
 /*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
  */
 
@@ -14,6 +14,7 @@
 #include <ac/signal.h>
 #include <ac/string.h>
 #include <ac/time.h>
+#include <ac/unistd.h>
 
 #include "ldap_pvt.h"
 #include "lutil.h"
@@ -300,7 +301,13 @@ static Connection* connection_get( ber_socket_t s )
                assert( c->c_conn_state != SLAP_C_INVALID );
                assert( sd != AC_SOCKET_INVALID );
 
-       c->c_activitytime = slap_get_time();
+#ifdef SLAPD_MONITOR
+               c->c_activitytime = slap_get_time();
+#else
+               if( global_idletimeout > 0 ) {
+                       c->c_activitytime = slap_get_time();
+               }
+#endif
        }
 
        return c;
@@ -358,7 +365,7 @@ long connection_init(
 
 #else
        {
-               unsigned int i;
+               ber_socket_t    i;
 
                c = NULL;
 
@@ -405,20 +412,30 @@ long connection_init(
     assert( c != NULL );
 
        if( c->c_struct_state == SLAP_C_UNINITIALIZED ) {
-               c->c_authmech = NULL;
-               c->c_dn = NULL;
-               c->c_cdn = NULL;
+               c->c_authmech.bv_val = NULL;
+               c->c_authmech.bv_len = 0;
+               c->c_dn.bv_val = NULL;
+               c->c_dn.bv_len = 0;
+               c->c_ndn.bv_val = NULL;
+               c->c_ndn.bv_len = 0;
+               c->c_cdn.bv_val = NULL;
+               c->c_cdn.bv_len = 0;
                c->c_groups = NULL;
 
-               c->c_listener_url = NULL;
-               c->c_peer_domain = NULL;
-               c->c_peer_name = NULL;
-               c->c_sock_name = NULL;
+               c->c_listener_url.bv_val = NULL;
+               c->c_listener_url.bv_len = 0;
+               c->c_peer_domain.bv_val = NULL;
+               c->c_peer_domain.bv_len = 0;
+               c->c_peer_name.bv_val = NULL;
+               c->c_peer_name.bv_len = 0;
+               c->c_sock_name.bv_val = NULL;
+               c->c_sock_name.bv_len = 0;
 
-               c->c_ops = NULL;
-               c->c_pending_ops = NULL;
+               LDAP_STAILQ_INIT(&c->c_ops);
+               LDAP_STAILQ_INIT(&c->c_pending_ops);
 
-               c->c_sasl_bind_mech = NULL;
+               c->c_sasl_bind_mech.bv_val = NULL;
+               c->c_sasl_bind_mech.bv_len = 0;
                c->c_sasl_context = NULL;
                c->c_sasl_extra = NULL;
 
@@ -442,25 +459,26 @@ long connection_init(
     ldap_pvt_thread_mutex_lock( &c->c_mutex );
 
     assert( c->c_struct_state == SLAP_C_UNUSED );
-       assert( c->c_authmech == NULL );
-    assert(    c->c_dn == NULL );
-    assert(    c->c_cdn == NULL );
+    assert( c->c_authmech.bv_val == NULL );
+    assert( c->c_dn.bv_val == NULL );
+    assert( c->c_ndn.bv_val == NULL );
+    assert( c->c_cdn.bv_val == NULL );
     assert( c->c_groups == NULL );
-    assert( c->c_listener_url == NULL );
-    assert( c->c_peer_domain == NULL );
-    assert( c->c_peer_name == NULL );
-    assert( c->c_sock_name == NULL );
-    assert( c->c_ops == NULL );
-    assert( c->c_pending_ops == NULL );
-       assert( c->c_sasl_bind_mech == NULL );
+    assert( c->c_listener_url.bv_val == NULL );
+    assert( c->c_peer_domain.bv_val == NULL );
+    assert( c->c_peer_name.bv_val == NULL );
+    assert( c->c_sock_name.bv_val == NULL );
+    assert( LDAP_STAILQ_EMPTY(&c->c_ops) );
+    assert( LDAP_STAILQ_EMPTY(&c->c_pending_ops) );
+       assert( c->c_sasl_bind_mech.bv_val == NULL );
        assert( c->c_sasl_context == NULL );
        assert( c->c_sasl_extra == NULL );
        assert( c->c_currentber == NULL );
 
-       c->c_listener_url = ch_strdup( url  );
-       c->c_peer_domain = ch_strdup( dnsname  );
-    c->c_peer_name = ch_strdup( peername  );
-    c->c_sock_name = ch_strdup( sockname );
+       ber_str2bv( url, 0, 1, &c->c_listener_url );
+       ber_str2bv( dnsname, 0, 1, &c->c_peer_domain );
+       ber_str2bv( peername, 0, 1, &c->c_peer_name );
+       ber_str2bv( sockname, 0, 1, &c->c_sock_name );
 
     c->c_n_ops_received = 0;
     c->c_n_ops_executing = 0;
@@ -474,7 +492,13 @@ long connection_init(
        /* set to zero until bind, implies LDAP_VERSION3 */
        c->c_protocol = 0;
 
-    c->c_activitytime = c->c_starttime = slap_get_time();
+#ifdef SLAPD_MONITOR
+       c->c_activitytime = c->c_starttime = slap_get_time();
+#else
+       if( global_idletimeout > 0 ) {
+               c->c_activitytime = c->c_starttime = slap_get_time();
+       }
+#endif
 
 #ifdef LDAP_CONNECTIONLESS
        c->c_is_udp = 0;
@@ -487,6 +511,8 @@ long connection_init(
 #endif
        ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_udp,
                LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
+       ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_readahead,
+               LBER_SBIOD_LEVEL_PROVIDER, NULL );
        } else
 #endif
        {
@@ -497,8 +523,6 @@ long connection_init(
        ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_tcp,
                LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
        }
-       ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_readahead,
-               LBER_SBIOD_LEVEL_PROVIDER, NULL );
 
 #ifdef LDAP_DEBUG
        ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_debug,
@@ -558,20 +582,28 @@ void connection2anonymous( Connection *c )
                ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
        }
 
-       if(c->c_authmech != NULL ) {
-               free(c->c_authmech);
-               c->c_authmech = NULL;
+       if(c->c_authmech.bv_val != NULL ) {
+               free(c->c_authmech.bv_val);
+               c->c_authmech.bv_val = NULL;
        }
+       c->c_authmech.bv_len = 0;
 
-    if(c->c_dn != NULL) {
-       free(c->c_dn);
-       c->c_dn = NULL;
+    if(c->c_dn.bv_val != NULL) {
+       free(c->c_dn.bv_val);
+       c->c_dn.bv_val = NULL;
     }
+    c->c_dn.bv_len = 0;
+    if(c->c_ndn.bv_val != NULL) {
+       free(c->c_ndn.bv_val);
+       c->c_ndn.bv_val = NULL;
+    }
+    c->c_ndn.bv_len = 0;
 
-       if(c->c_cdn != NULL) {
-               free(c->c_cdn);
-               c->c_cdn = NULL;
+       if(c->c_cdn.bv_val != NULL) {
+               free(c->c_cdn.bv_val);
+               c->c_cdn.bv_val = NULL;
        }
+       c->c_cdn.bv_len = 0;
 
        c->c_authc_backend = NULL;
        c->c_authz_backend = NULL;
@@ -580,7 +612,7 @@ void connection2anonymous( Connection *c )
        GroupAssertion *g, *n;
        for (g = c->c_groups; g; g=n)
        {
-           n = g->next;
+           n = g->ga_next;
            free(g);
        }
        c->c_groups = NULL;
@@ -598,7 +630,7 @@ connection_destroy( Connection *c )
     assert( c != NULL );
     assert( c->c_struct_state != SLAP_C_UNUSED );
     assert( c->c_conn_state != SLAP_C_INVALID );
-    assert( c->c_ops == NULL );
+    assert( LDAP_STAILQ_EMPTY(&c->c_ops) );
 
     backend_connection_destroy(c);
 
@@ -609,43 +641,48 @@ connection_destroy( Connection *c )
 
        connection2anonymous( c );
 
-       if(c->c_listener_url != NULL) {
-               free(c->c_listener_url);
-               c->c_listener_url = NULL;
+       if(c->c_listener_url.bv_val != NULL) {
+               free(c->c_listener_url.bv_val);
+               c->c_listener_url.bv_val = NULL;
        }
+       c->c_listener_url.bv_len = 0;
 
-       if(c->c_peer_domain != NULL) {
-               free(c->c_peer_domain);
-               c->c_peer_domain = NULL;
+       if(c->c_peer_domain.bv_val != NULL) {
+               free(c->c_peer_domain.bv_val);
+               c->c_peer_domain.bv_val = NULL;
        }
-       if(c->c_peer_name != NULL) {
+       c->c_peer_domain.bv_len = 0;
+       if(c->c_peer_name.bv_val != NULL) {
 #ifdef LDAP_PF_lOCAL
                /*
                 * If peer was a domain socket, unlink. Mind you,
                 * they may be un-named. Should we leave this to
                 * the client?
                 */
-               if (strncmp(c->c_peer_name, "PATH=", 5) == 0) {
-                       char *path = c->c_peer_name + 5;
+               if (strncmp(c->c_peer_name.bv_val, "PATH=", 5) == 0) {
+                       char *path = c->c_peer_name.bv_val + 5;
                        if (path != '\0') {
                                (void)unlink(path);
                        }
                }
 #endif /* LDAP_PF_LOCAL */
 
-               free(c->c_peer_name);
-               c->c_peer_name = NULL;
+               free(c->c_peer_name.bv_val);
+               c->c_peer_name.bv_val = NULL;
        }
-       if(c->c_sock_name != NULL) {
-               free(c->c_sock_name);
-               c->c_sock_name = NULL;
+       c->c_peer_name.bv_len = 0;
+       if(c->c_sock_name.bv_val != NULL) {
+               free(c->c_sock_name.bv_val);
+               c->c_sock_name.bv_val = NULL;
        }
+       c->c_sock_name.bv_len = 0;
 
        c->c_sasl_bind_in_progress = 0;
-       if(c->c_sasl_bind_mech != NULL) {
-               free(c->c_sasl_bind_mech);
-               c->c_sasl_bind_mech = NULL;
+       if(c->c_sasl_bind_mech.bv_val != NULL) {
+               free(c->c_sasl_bind_mech.bv_val);
+               c->c_sasl_bind_mech.bv_val = NULL;
        }
+       c->c_sasl_bind_mech.bv_len = 0;
 
        slap_sasl_close( c );
 
@@ -697,17 +734,16 @@ static void connection_abandon( Connection *c )
 
        Operation *o;
 
-       for( o = c->c_ops; o != NULL; o = o->o_next ) {
+       LDAP_STAILQ_FOREACH(o, &c->c_ops, o_next) {
                ldap_pvt_thread_mutex_lock( &o->o_abandonmutex );
                o->o_abandon = 1;
                ldap_pvt_thread_mutex_unlock( &o->o_abandonmutex );
        }
 
        /* remove pending operations */
-       for( o = slap_op_pop( &c->c_pending_ops );
-               o != NULL;
-               o = slap_op_pop( &c->c_pending_ops ) )
-       {
+       while ( (o = LDAP_STAILQ_FIRST( &c->c_pending_ops )) != NULL) {
+               LDAP_STAILQ_REMOVE_HEAD( &c->c_pending_ops, o_next );
+               LDAP_STAILQ_NEXT(o, o_next) = NULL;
                slap_op_free( o );
        }
 }
@@ -761,7 +797,7 @@ static void connection_close( Connection *c )
        /* note: connections_mutex and c_mutex should be locked by caller */
 
        ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_GET_FD, &sd );
-       if( c->c_ops != NULL ) {
+       if( !LDAP_STAILQ_EMPTY(&c->c_ops) ) {
 #ifdef NEW_LOGGING
                LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
                           "connection_close: conn %d  deferring sd %d\n",
@@ -964,7 +1000,8 @@ operations_error:
        conn->c_n_ops_executing--;
        conn->c_n_ops_completed++;
 
-       slap_op_remove( &conn->c_ops, arg->co_op );
+       LDAP_STAILQ_REMOVE( &conn->c_ops, arg->co_op, slap_op, o_next);
+       LDAP_STAILQ_NEXT(arg->co_op, o_next) = NULL;
        slap_op_free( arg->co_op );
        arg->co_op = NULL;
        arg->co_conn = NULL;
@@ -1051,8 +1088,10 @@ int connection_read(ber_socket_t s)
        if ( c->c_is_tls && c->c_needs_tls_accept ) {
                rc = ldap_pvt_tls_accept( c->c_sb, NULL );
                if ( rc < 0 ) {
+#if 0 /* required by next #if 0 */
                        struct timeval tv;
                        fd_set rfd;
+#endif
 
 #ifdef NEW_LOGGING
                        LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
@@ -1326,7 +1365,7 @@ connection_input(
                Debug( LDAP_DEBUG_ANY, "deferring operation\n", 0, 0, 0 );
 #endif
                conn->c_n_ops_pending++;
-               slap_op_add( &conn->c_pending_ops, op );
+               LDAP_STAILQ_INSERT_TAIL( &conn->c_pending_ops, op, o_next );
 
        } else {
                conn->c_n_ops_executing++;
@@ -1409,10 +1448,9 @@ connection_resched( Connection *conn )
                return 0;
        }
 
-       for( op = slap_op_pop( &conn->c_pending_ops );
-               op != NULL;
-               op = slap_op_pop( &conn->c_pending_ops ) )
-       {
+       while ((op = LDAP_STAILQ_FIRST( &conn->c_pending_ops )) != NULL) {
+               LDAP_STAILQ_REMOVE_HEAD( &conn->c_pending_ops, o_next );
+               LDAP_STAILQ_NEXT(op, o_next) = NULL;
                /* pending operations should not be marked for abandonment */
                assert(!op->o_abandon);
 
@@ -1442,15 +1480,15 @@ static int connection_op_activate( Connection *conn, Operation *op )
        arg->co_conn = conn;
        arg->co_op = op;
 
-       if (!arg->co_op->o_dn) {
+       if (!arg->co_op->o_dn.bv_len) {
            arg->co_op->o_authz = conn->c_authz;
-           arg->co_op->o_dn = ch_strdup( conn->c_dn != NULL ? conn->c_dn : "" );
+           arg->co_op->o_dn.bv_val = ch_strdup( conn->c_dn.bv_val ?
+               conn->c_dn.bv_val : "" );
+           arg->co_op->o_ndn.bv_val = ch_strdup( conn->c_ndn.bv_val ?
+               conn->c_ndn.bv_val : "" );
        }
-       arg->co_op->o_ndn = ch_strdup( arg->co_op->o_dn );
-       (void) dn_normalize( arg->co_op->o_ndn );
        arg->co_op->o_authtype = conn->c_authtype;
-       arg->co_op->o_authmech = conn->c_authmech != NULL
-               ?  ch_strdup( conn->c_authmech ) : NULL;
+       ber_dupbv( &arg->co_op->o_authmech, &conn->c_authmech );
        
        if (!arg->co_op->o_protocol) {
            arg->co_op->o_protocol = conn->c_protocol
@@ -1458,7 +1496,7 @@ static int connection_op_activate( Connection *conn, Operation *op )
        }
        arg->co_op->o_connid = conn->c_connid;
 
-       slap_op_add( &conn->c_ops, arg->co_op );
+       LDAP_STAILQ_INSERT_TAIL( &conn->c_ops, arg->co_op, o_next );
 
        status = ldap_pvt_thread_pool_submit( &connection_pool,
                connection_operation, (void *) arg );
@@ -1525,65 +1563,3 @@ int connection_write(ber_socket_t s)
        return 0;
 }
 
-
-/*
- * Create client side and server side connection structures, connected to
- * one another, for the front end to use for searches on arbitrary back ends.
- */
-
-int connection_internal_open( Connection **conn, LDAP **ldp, const char *id )
-{
-       int rc;
-       ber_socket_t fd[2] = {-1,-1};
-       Operation *op;
-
-       *conn=NULL;
-       *ldp=NULL;
-
-       rc = lutil_pair( fd );
-       if( rc == -1 ) {
-               return LDAP_OTHER;
-       }
-
-       rc = connection_init( fd[1], "INT", "localhost", 
-      "localhost:0", "localhost:00", 0, 256, id );
-       if( rc < 0 ) {
-               tcp_close( fd[0] );
-               tcp_close( fd[1] );
-               return LDAP_OTHER;
-       }
-       slapd_add_internal( fd[1] );
-
-       /* A search operation, number 0 */
-       op = slap_op_alloc( NULL, 0, LDAP_REQ_SEARCH, 0);
-       op->o_ndn = ch_strdup( id );
-       op->o_protocol = LDAP_VERSION3;
-
-       (*conn) = connection_get( fd[1] );
-       (*conn)->c_ops = op;
-    (*conn)->c_conn_state = SLAP_C_ACTIVE;
-
-
-       /* Create the client side of the connection */
-       rc = ldap_open_internal_connection( ldp, &(fd[0]) );
-       if( rc != LDAP_SUCCESS ) {
-               tcp_close( fd[0] );
-               return LDAP_OTHER;
-       }
-
-       /* The connection_get() will have locked the connection's mutex */
-       ldap_pvt_thread_mutex_unlock(  &((*conn)->c_mutex) );
-
-       return LDAP_SUCCESS;
-}
-
-
-void connection_internal_close( Connection *conn )
-{
-       Operation *op = conn->c_ops;
-
-       slap_op_remove( &conn->c_ops, op );
-       slap_op_free( op );
-       connection_closing( conn );
-       connection_close( conn );
-}