/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include <sys/types.h> #include <sys/conf.h> #include <sys/modctl.h> #include <inet/common.h> /* * Dummy streams module that is used by ICMP, UDP, and TCP by setting * INETMODSTRTAB to dummymodinfo * * It's reason for existance is so that mibopen() that I_PUSH icmp, udp, and * tcp can continue to push modules with those names, even though all the * MIB information comes from IP. */ static int dummy_modclose(queue_t *q); static int dummy_modopen(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp); /* * This is common code for the tcp, udp, and icmp streams module which is * an empty STREAMS module provided for compatibility for mibopen() * code which I_PUSH modules with those names. */ struct module_info dummy_mod_info = { 5799, "dummymod", 1, INFPSZ, 65536, 1024 }; static struct qinit dummyrmodinit = { (pfi_t)putnext, NULL, dummy_modopen, dummy_modclose, NULL, &dummy_mod_info }; static struct qinit dummywmodinit = { (pfi_t)putnext, NULL, NULL, NULL, NULL, &dummy_mod_info }; struct streamtab dummymodinfo = { &dummyrmodinit, &dummywmodinit }; static int dummy_modclose(queue_t *q) { qprocsoff(q); return (0); } /* ARGSUSED */ static int dummy_modopen(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp) { /* If the stream is already open, return immediately. */ if (q->q_ptr != NULL) return (0); /* If this is not a push of dummy as a module, fail. */ if (sflag != MODOPEN) return (EINVAL); qprocson(q); return (0); }