+static int
+tcp_buffer_delete( BerVarray vals )
+{
+ int i;
+
+ for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
+ tcp_buffer_delete_one( &vals[ i ] );
+ }
+
+ return 0;
+}
+
+static int
+tcp_buffer_unparse( int size, int rw, Listener *l, struct berval *val )
+{
+ char buf[sizeof("2147483648")], *ptr;
+
+ /* unparse for later use */
+ val->bv_len = snprintf( buf, sizeof( buf ), "%d", size );
+ if ( l != NULL ) {
+ val->bv_len += STRLENOF( "listener=" " " ) + l->sl_url.bv_len;
+ }
+
+ if ( rw != ( SLAP_TCP_RMEM | SLAP_TCP_WMEM ) ) {
+ if ( rw & SLAP_TCP_RMEM ) {
+ val->bv_len += STRLENOF( "read=" );
+ } else if ( rw & SLAP_TCP_WMEM ) {
+ val->bv_len += STRLENOF( "write=" );
+ }
+ }
+
+ val->bv_val = SLAP_MALLOC( val->bv_len + 1 );
+
+ ptr = val->bv_val;
+
+ if ( l != NULL ) {
+ ptr = lutil_strcopy( ptr, "listener=" );
+ ptr = lutil_strncopy( ptr, l->sl_url.bv_val, l->sl_url.bv_len );
+ *ptr++ = ' ';
+ }
+
+ if ( rw != ( SLAP_TCP_RMEM | SLAP_TCP_WMEM ) ) {
+ if ( rw & SLAP_TCP_RMEM ) {
+ ptr = lutil_strcopy( ptr, "read=" );
+ } else if ( rw & SLAP_TCP_WMEM ) {
+ ptr = lutil_strcopy( ptr, "write=" );
+ }
+ }
+
+ ptr = lutil_strcopy( ptr, buf );
+ *ptr = '\0';
+
+ assert( val->bv_val + val->bv_len == ptr );
+
+ return LDAP_SUCCESS;
+}
+
+static int
+tcp_buffer_add_one( int argc, char **argv )
+{
+ int rc = 0;
+ int size = -1, rw = 0;
+ Listener *l = NULL;
+
+ struct berval val;
+
+ /* parse */
+ rc = tcp_buffer_parse( NULL, argc, argv, &size, &rw, &l );
+ if ( rc != 0 ) {
+ return rc;
+ }
+
+ /* unparse for later use */
+ rc = tcp_buffer_unparse( size, rw, l, &val );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ /* use parsed values */
+ if ( l != NULL ) {
+ int i;
+ Listener **ll = slapd_get_listeners();
+
+ for ( i = 0; ll[ i ] != NULL; i++ ) {
+ if ( ll[ i ] == l ) break;
+ }
+
+ if ( ll[ i ] == NULL ) {
+ return LDAP_NO_SUCH_ATTRIBUTE;
+ }
+
+ /* buffer only applies to TCP listeners;
+ * we do not do any check here, and delegate them
+ * to setsockopt(2) */
+ if ( rw & SLAP_TCP_RMEM ) l->sl_tcp_rmem = size;
+ if ( rw & SLAP_TCP_WMEM ) l->sl_tcp_wmem = size;
+
+ for ( i++ ; ll[ i ] != NULL && bvmatch( &l->sl_url, &ll[ i ]->sl_url ); i++ ) {
+ if ( rw & SLAP_TCP_RMEM ) ll[ i ]->sl_tcp_rmem = size;
+ if ( rw & SLAP_TCP_WMEM ) ll[ i ]->sl_tcp_wmem = size;
+ }
+
+ } else {
+ /* NOTE: this affects listeners without a specific setting,
+ * does not set all listeners */
+ if ( rw & SLAP_TCP_RMEM ) slapd_tcp_rmem = size;
+ if ( rw & SLAP_TCP_WMEM ) slapd_tcp_wmem = size;
+ }
+
+ tcp_buffer = SLAP_REALLOC( tcp_buffer, sizeof( struct berval ) * ( tcp_buffer_num + 2 ) );
+ /* append */
+ tcp_buffer[ tcp_buffer_num ] = val;
+
+ tcp_buffer_num++;
+ BER_BVZERO( &tcp_buffer[ tcp_buffer_num ] );
+
+ return rc;
+}
+
+static int
+config_tcp_buffer( ConfigArgs *c )
+{
+ if ( c->op == SLAP_CONFIG_EMIT ) {
+ if ( tcp_buffer == NULL || BER_BVISNULL( &tcp_buffer[ 0 ] ) ) {
+ return 1;
+ }
+ value_add( &c->rvalue_vals, tcp_buffer );
+ value_add( &c->rvalue_nvals, tcp_buffer );
+
+ } else if ( c->op == LDAP_MOD_DELETE ) {
+ if ( !c->line ) {
+ tcp_buffer_delete( tcp_buffer );
+ ber_bvarray_free( tcp_buffer );
+ tcp_buffer = NULL;
+ tcp_buffer_num = 0;
+
+ } else {
+ int rc = 0;
+ int size = -1, rw = 0;
+ Listener *l = NULL;
+
+ struct berval val = BER_BVNULL;
+
+ int i;
+
+ if ( tcp_buffer_num == 0 ) {
+ return 1;
+ }
+
+ /* parse */
+ rc = tcp_buffer_parse( NULL, c->argc - 1, &c->argv[ 1 ], &size, &rw, &l );
+ if ( rc != 0 ) {
+ return 1;
+ }
+
+ /* unparse for later use */
+ rc = tcp_buffer_unparse( size, rw, l, &val );
+ if ( rc != LDAP_SUCCESS ) {
+ return 1;
+ }
+
+ for ( i = 0; !BER_BVISNULL( &tcp_buffer[ i ] ); i++ ) {
+ if ( bvmatch( &tcp_buffer[ i ], &val ) ) {
+ break;
+ }
+ }
+
+ if ( BER_BVISNULL( &tcp_buffer[ i ] ) ) {
+ /* not found */
+ rc = 1;
+ goto done;
+ }
+
+ tcp_buffer_delete_one( &tcp_buffer[ i ] );
+ ber_memfree( tcp_buffer[ i ].bv_val );
+ for ( ; i < tcp_buffer_num; i++ ) {
+ tcp_buffer[ i ] = tcp_buffer[ i + 1 ];
+ }
+ tcp_buffer_num--;
+
+done:;
+ if ( !BER_BVISNULL( &val ) ) {
+ SLAP_FREE( val.bv_val );
+ }
+
+ }
+
+ } else {
+ int rc;
+
+ rc = tcp_buffer_add_one( c->argc - 1, &c->argv[ 1 ] );
+ if ( rc ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "<%s> unable to add value #%d",
+ c->argv[0], tcp_buffer_num );
+ Debug( LDAP_DEBUG_ANY, "%s: %s\n",
+ c->log, c->cr_msg, 0 );
+ return 1;
+ }
+ }
+
+ return 0;
+}
+#endif /* LDAP_TCP_BUFFER */
+