1 files changed, 64 insertions, 0 deletions
diff --git a/print-ah.c b/print-ah.c
new file mode 100644
index 0000000000000..bec6f88f67d05
--- /dev/null
+++ b/print-ah.c
@@ -0,0 +1,64 @@
+/*	$NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
+ *	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: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/* \summary: IPSEC Authentication Header printer */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <netdissect-stdinc.h>
+
+#include "ah.h"
+
+#include "netdissect.h"
+#include "extract.h"
+
+int
+ah_print(netdissect_options *ndo, register const u_char *bp)
+{
+	register const struct ah *ah;
+	int sumlen;
+
+	ah = (const struct ah *)bp;
+
+	ND_TCHECK(*ah);
+
+	sumlen = ah->ah_len << 2;
+
+	ND_PRINT((ndo, "AH(spi=0x%08x", EXTRACT_32BITS(&ah->ah_spi)));
+	if (ndo->ndo_vflag)
+		ND_PRINT((ndo, ",sumlen=%d", sumlen));
+	ND_TCHECK_32BITS(ah + 1);
+	ND_PRINT((ndo, ",seq=0x%x", EXTRACT_32BITS(ah + 1)));
+	if (!ND_TTEST2(*bp, sizeof(struct ah) + sumlen)) {
+		ND_PRINT((ndo, "[truncated]):"));
+		return -1;
+	}
+	ND_PRINT((ndo, "): "));
+
+	return sizeof(struct ah) + sumlen;
+ trunc:
+	ND_PRINT((ndo, "[|AH]"));
+	return -1;
+}