1 files changed, 140 insertions, 0 deletions
diff --git a/sys/netccitt/pk_debug.c b/sys/netccitt/pk_debug.c
new file mode 100644
index 0000000..b510355
--- /dev/null
+++ b/sys/netccitt/pk_debug.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) University of British Columbia, 1984
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Laboratory for Computation Vision and the Computer Science Department
+ * of the University of British Columbia.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)pk_debug.c	8.1 (Berkeley) 6/10/93
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/protosw.h>
+#include <sys/socketvar.h>
+#include <sys/errno.h>
+
+#include <net/if.h>
+
+#include <netccitt/x25.h>
+#include <netccitt/pk.h>
+#include <netccitt/pk_var.h>
+
+char	*pk_state[] = {
+	"Listen",	"Ready",	"Received-Call",
+	"Sent-Call",	"Data-Transfer","Received-Clear",
+	"Sent-Clear",
+};
+
+char   *pk_name[] = {
+	"Call",		"Call-Conf",	"Clear",
+	"Clear-Conf",	"Data",		"Intr",		"Intr-Conf",
+	"Rr",		"Rnr",		"Reset",	"Reset-Conf",
+	"Restart",	"Restart-Conf",	"Reject",	"Diagnostic",
+	"Invalid"
+};
+
+pk_trace (xcp, m, dir)
+struct x25config *xcp;
+register struct mbuf *m;
+char *dir;
+{
+	register char *s;
+	struct x25_packet *xp = mtod(m, struct x25_packet *);
+	register int i, len = 0, cnt = 0;
+
+	if (xcp -> xc_ptrace == 0)
+		return;
+
+	i = pk_decode (xp) / MAXSTATES;
+	for (; m; m = m -> m_next) {
+		len = len + m -> m_len;
+		++cnt;
+	}
+	printf ("LCN=%d %s:	%s	#=%d, len=%d ",
+		LCN(xp), dir, pk_name[i], cnt, len);
+	for (s = (char *) xp, i = 0; i < 5; ++i, ++s)
+		printf ("%x ", (int) * s & 0xff);
+	printf ("\n");
+}
+
+mbuf_cache(c, m)
+register struct mbuf_cache *c;
+struct mbuf *m;
+{
+	register struct mbuf **mp;
+
+	if (c->mbc_size != c->mbc_oldsize) {
+		unsigned zero_size, copy_size;
+		unsigned new_size = c->mbc_size * sizeof(m);
+		caddr_t cache = (caddr_t)c->mbc_cache;
+
+		if (new_size) {
+			c->mbc_cache = (struct mbuf **)
+				malloc(new_size, M_MBUF, M_NOWAIT);
+			if (c->mbc_cache == 0) {
+				c->mbc_cache = (struct mbuf **)cache;
+				return;
+			}
+			c->mbc_num %= c->mbc_size;
+		} else
+			c->mbc_cache = 0;
+		if (c->mbc_size < c->mbc_oldsize) {
+			register struct mbuf **mplim;
+			mp = c->mbc_size + (struct mbuf **)cache;
+			mplim = c->mbc_oldsize + (struct mbuf **)cache;
+			while (mp < mplim)
+				m_freem(*mp++);
+			zero_size = 0;
+		} else
+			zero_size = (c->mbc_size - c->mbc_oldsize) * sizeof(m);
+		copy_size = new_size - zero_size;
+		c->mbc_oldsize = c->mbc_size;
+		if (copy_size)
+			bcopy(cache, (caddr_t)c->mbc_cache, copy_size);
+		if (cache)
+			free(cache, M_MBUF);
+		if (zero_size)
+			bzero(copy_size + (caddr_t)c->mbc_cache, zero_size);
+	}
+	if (c->mbc_size == 0)
+		return;
+	mp = c->mbc_cache + c->mbc_num;
+	c->mbc_num = (1 + c->mbc_num) % c->mbc_size;
+	if (*mp)
+		m_freem(*mp);
+	if (*mp = m_copym(m, 0, M_COPYALL, M_DONTWAIT))
+		(*mp)->m_flags |= m->m_flags & 0x08;
+}