BSD 4.4 Lite Kernel Sources

1 files changed, 59 insertions, 0 deletions

diff --git a/sys/netiso/tuba_table.h b/sys/netiso/tuba_table.h
new file mode 100644
index 0000000..6be8afa
--- /dev/null
+++ b/sys/netiso/tuba_table.h
@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ *
+ *	@(#)tuba_table.h	8.1 (Berkeley) 6/10/93
+ */
+
+struct tuba_cache {
+	struct	radix_node tc_nodes[2];		/* convenient lookup */
+	int	tc_refcnt;
+	int	tc_time;			/* last looked up */
+	int	tc_flags;
+#define TCF_PERM	1
+	int	tc_index;
+	u_short	tc_sum;				/* cksum of nsap inc. length */
+	u_short	tc_ssum;			/* swab(tc_sum) */
+	struct	sockaddr_iso tc_siso;		/* for responding */
+};
+
+#define ADDCARRY(x)  (x >= 65535 ? x -= 65535 : x)
+#define REDUCE(a, b) { union { u_short s[2]; long l;} l_util; long x; \
+	l_util.l = (b); x = l_util.s[0] + l_util.s[1]; ADDCARRY(x); \
+	if (x == 0) x = 0xffff; a = x;}
+#define SWAB(a, b) { union { u_char c[2]; u_short s;} s; u_char t; \
+	s.s = (b); t = s.c[0]; s.c[0] = s.c[1]; s.c[1] = t; a = s.s;}
+
+#ifdef KERNEL
+extern	int	tuba_table_size;
+extern	struct	tuba_cache **tuba_table;
+extern	struct	radix_node_head *tuba_tree;
+#endif