Add new files for HARP3

Host ATM Research Platform (HARP), Network Computing Services, Inc.
This software was developed with the support of the Defense Advanced
Research Projects Agency (DARPA).

1 files changed, 252 insertions, 0 deletions

diff --git a/sys/netatm/uni/uniip.c b/sys/netatm/uni/uniip.c
new file mode 100644
index 0000000..0039585
--- /dev/null
+++ b/sys/netatm/uni/uniip.c
@@ -0,0 +1,252 @@
+/*
+ *
+ * ===================================
+ * HARP  |  Host ATM Research Platform
+ * ===================================
+ *
+ *
+ * This Host ATM Research Platform ("HARP") file (the "Software") is
+ * made available by Network Computing Services, Inc. ("NetworkCS")
+ * "AS IS".  NetworkCS does not provide maintenance, improvements or
+ * support of any kind.
+ *
+ * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
+ * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
+ * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
+ * In no event shall NetworkCS be responsible for any damages, including
+ * but not limited to consequential damages, arising from or relating to
+ * any use of the Software or related support.
+ *
+ * Copyright 1994-1998 Network Computing Services, Inc.
+ *
+ * Copies of this Software may be made, however, the above copyright
+ * notice must be reproduced on all copies.
+ *
+ *	@(#) $Id: uniip.c,v 1.6 1998/05/18 19:18:42 mks Exp $
+ *
+ */
+
+/*
+ * ATM Forum UNI Support
+ * ---------------------
+ *
+ * UNI IP interface module
+ *
+ */
+
+#ifndef lint
+static char *RCSid = "@(#) $Id: uniip.c,v 1.6 1998/05/18 19:18:42 mks Exp $";
+#endif
+
+#include <netatm/kern_include.h>
+
+#include <netatm/ipatm/ipatm_var.h>
+#include <netatm/ipatm/ipatm_serv.h>
+#include <netatm/uni/uniip_var.h>
+
+
+/*
+ * Local functions
+ */
+static int	uniip_ipact __P((struct ip_nif *));
+static int	uniip_ipdact __P((struct ip_nif *));
+
+
+/*
+ * Global variables
+ */
+struct uniip	*uniip_head = NULL;
+
+struct ip_serv	uniip_ipserv = {
+	uniip_ipact,
+	uniip_ipdact,
+	uniarp_ioctl,
+	uniarp_pvcopen,
+	uniarp_svcout,
+	uniarp_svcin,
+	uniarp_svcactive,
+	uniarp_vcclose,
+	NULL,
+	{ATM_AAL5, ATM_ENC_LLC},
+};
+
+
+/*
+ * Local variables
+ */
+static struct sp_info  uniip_pool = {
+	"uni ip pool",			/* si_name */
+	sizeof(struct uniip),		/* si_blksiz */
+	2,				/* si_blkcnt */
+	100				/* si_maxallow */
+};
+
+
+/*
+ * Process module loading notification
+ * 
+ * Called whenever the uni module is initializing.  
+ *
+ * Arguments:
+ *	none
+ *
+ * Returns:
+ *	0	initialization successful
+ *	errno	initialization failed - reason indicated
+ *
+ */
+int
+uniip_start()
+{
+	int	err;
+
+	/*
+	 * Tell arp to initialize stuff
+	 */
+	err = uniarp_start();
+
+	return (err);
+}
+
+
+/*
+ * Process module unloading notification
+ * 
+ * Called whenever the uni module is about to be unloaded.  All signalling
+ * instances will have been previously detached.  All uniip resources
+ * must be freed now.
+ *
+ * Arguments:
+ *	none
+ *
+ * Returns:
+ *	0	shutdown was successful 
+ *	errno	shutdown failed - reason indicated
+ *
+ */
+int
+uniip_stop()
+{
+
+	/*
+	 * All IP interfaces should be gone
+	 */
+	if (uniip_head)
+		return (EBUSY);
+
+	/*
+	 * Tell arp to stop
+	 */
+	uniarp_stop();
+
+	/*
+	 * Free our storage pools
+	 */
+	atm_release_pool(&uniip_pool);
+
+	return (0);
+}
+
+
+/*
+ * Process IP Network Interface Activation
+ * 
+ * Called whenever an IP network interface becomes active.
+ *
+ * Called at splnet.
+ *
+ * Arguments:
+ *	inp	pointer to IP network interface
+ *
+ * Returns:
+ *	0 	command successful
+ *	errno	command failed - reason indicated
+ *
+ */
+static int
+uniip_ipact(inp)
+	struct ip_nif	*inp;
+{
+	struct uniip		*uip;
+
+	/*
+	 * Make sure we don't already have this interface
+	 */
+	for (uip = uniip_head; uip; uip = uip->uip_next) {
+		if (uip->uip_ipnif == inp)
+			return (EEXIST);
+	}
+
+	/*
+	 * Get a new interface control block
+	 */
+	uip = (struct uniip *)atm_allocate(&uniip_pool);
+	if (uip == NULL)
+		return (ENOMEM);
+
+	/*
+	 * Initialize and link up
+	 */
+	uip->uip_ipnif = inp;
+	LINK2TAIL(uip, struct uniip, uniip_head, uip_next);
+
+	/*
+	 * Link from IP world
+	 */
+	inp->inf_isintf = (caddr_t)uip;
+
+	/*
+	 * Tell arp about new interface
+	 */
+	uniarp_ipact(uip);
+
+	return (0);
+}
+
+
+/*
+ * Process IP Network Interface Deactivation
+ * 
+ * Called whenever an IP network interface becomes inactive.
+ *
+ * Called at splnet.
+ *
+ * Arguments:
+ *	inp	pointer to IP network interface
+ *
+ * Returns:
+ *	0 	command successful
+ *	errno	command failed - reason indicated
+ *
+ */
+static int
+uniip_ipdact(inp)
+	struct ip_nif	*inp;
+{
+	struct uniip		*uip;
+
+	/*
+	 * Get the appropriate IP interface block
+	 */
+	uip = (struct uniip *)inp->inf_isintf;
+	if (uip == NULL)
+		return (ENXIO);
+
+	/*
+	 * Let arp know about this
+	 */
+	uniarp_ipdact(uip);
+
+	/*
+	 * Free interface info
+	 */
+	UNLINK(uip, struct uniip, uniip_head, uip_next);
+	if (uip->uip_prefix != NULL)
+		KM_FREE(uip->uip_prefix, 
+			uip->uip_nprefix * sizeof(struct uniarp_prf), M_DEVBUF);
+	atm_free((caddr_t)uip);
+
+	return (0);
+}
+