1 files changed, 206 insertions, 0 deletions
diff --git a/sys/netatm/uni/qsaal1_subr.c b/sys/netatm/uni/qsaal1_subr.c
new file mode 100644
index 000000000000..ed4b43cb3758
--- /dev/null
+++ b/sys/netatm/uni/qsaal1_subr.c
@@ -0,0 +1,206 @@
+/*
+ *
+ * ===================================
+ * 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: qsaal1_subr.c,v 1.6 1998/04/07 23:21:17 mks Exp $
+ *
+ */
+
+/*
+ * ATM Forum UNI Support
+ * ---------------------
+ *
+ * ITU-T Q.SAAL1 - Subroutines
+ *
+ */
+
+#ifndef lint
+static char *RCSid = "@(#) $Id: qsaal1_subr.c,v 1.6 1998/04/07 23:21:17 mks Exp $";
+#endif
+
+#include <netatm/kern_include.h>
+
+#include <netatm/uni/uni.h>
+#include <netatm/uni/sscop.h>
+#include <netatm/uni/sscop_misc.h>
+#include <netatm/uni/sscop_pdu.h>
+#include <netatm/uni/sscop_var.h>
+
+
+/*
+ * Re-establish a new SSCOP Connection
+ * 
+ * Arguments:
+ *	sop	pointer to sscop connection block
+ *
+ * Returns:
+ *	none
+ *
+ */
+void
+qsaal1_reestablish(sop)
+	struct sscop	*sop;
+{
+
+	/*
+	 * Stop polling timers
+	 */
+	sop->so_timer[SSCOP_T_POLL] = 0;
+	sop->so_timer[SSCOP_T_NORESP] = 0;
+	sop->so_flags &= ~SOF_KEEPALIVE;
+
+	/*
+	 * Note that we're reestablishing a connection
+	 */
+	sop->so_flags |= SOF_REESTAB;
+
+	/*
+	 * Send first BGN PDU
+	 */
+	sop->so_connctl = 1;
+	(void) sscop_send_bgn(sop, SSCOP_SOURCE_SSCOP);
+
+	/*
+	 * Reset transmit variables
+	 */
+	qsaal1_reset_xmit(sop);
+
+	/*
+	 * Set retransmit timer
+	 */
+	sop->so_timer[SSCOP_T_CC] = sop->so_parm.sp_timecc;
+
+	/*
+	 * Wait for BGAK
+	 */
+	sop->so_state = SOS_OUTCONN;
+
+	return;
+}
+
+
+/*
+ * Reset connection's transmitter state
+ * 
+ * Arguments:
+ *	sop	pointer to sscop connection block
+ *
+ * Returns:
+ *	none
+ *
+ */
+void
+qsaal1_reset_xmit(sop)
+	struct sscop	*sop;
+{
+
+	/*
+	 * Drain the transmission queues
+	 */
+	sscop_xmit_drain(sop);
+
+	/*
+	 * Reset transmit variables
+	 */
+	SEQ_SET(sop->so_send, 0);
+	SEQ_SET(sop->so_pollsend, 0);
+	SEQ_SET(sop->so_ack, 0);
+	SEQ_SET(sop->so_pollack, 0);
+	if (sop->so_state != SOS_INCONN)
+		SEQ_SET(sop->so_sendmax, 0);
+	sop->so_polldata = 0;
+
+	return;
+}
+
+
+/*
+ * Reset connection's receiver state
+ * 
+ * Arguments:
+ *	sop	pointer to sscop connection block
+ *
+ * Returns:
+ *	none
+ *
+ */
+void
+qsaal1_reset_rcvr(sop)
+	struct sscop	*sop;
+{
+
+	/*
+	 * Drain the receiver queues
+	 */
+	sscop_rcvr_drain(sop);
+
+	/*
+	 * Reset transmit variables
+	 */
+	SEQ_SET(sop->so_rcvnext, 0);
+	SEQ_SET(sop->so_rcvhigh, 0);
+	SEQ_SET(sop->so_rcvmax, sop->so_parm.sp_rcvwin);
+
+	return;
+}
+
+
+/*
+ * Clear connection's connection data
+ * 
+ * Arguments:
+ *	sop	pointer to sscop connection block
+ *
+ * Returns:
+ *	none
+ *
+ */
+void
+qsaal1_clear_connection(sop)
+	struct sscop	*sop;
+{
+
+	/*
+	 * Can we clear transmit buffers ??
+	 */
+	if ((sop->so_flags & SOF_NOCLRBUF) == 0) {
+		/*
+		 * Yes, drain the transmission queues
+		 */
+		sscop_xmit_drain(sop);
+	}
+
+	/*
+	 * Clear service required flag
+	 */
+	sop->so_flags &= ~SOF_XMITSRVC;
+
+	/*
+	 * Drain receive queue buffers
+	 */
+	sscop_rcvr_drain(sop);
+
+	return;
+}
+