Adding upstream version 4.99.4.upstream/4.99.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 130 insertions, 0 deletions

diff --git a/print-bcm-li.c b/print-bcm-li.c
new file mode 100644
index 0000000..12b1ebb
--- /dev/null
+++ b/print-bcm-li.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997
+ *	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: Broadcom LI Printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+#define BCM_LI_SHIM_LEN	4
+
+static const struct tok bcm_li_direction_values[] = {
+    { 1, "unused" },
+    { 2, "egress" },
+    { 3, "ingress" },
+    { 0, NULL}
+};
+
+#define BCM_LI_PKT_TYPE_UNDECIDED 4
+#define BCM_LI_PKT_TYPE_IPV4      5
+#define BCM_LI_PKT_TYPE_IPV6      6
+#define BCM_LI_PKT_TYPE_ETHERNET  7
+
+static const struct tok bcm_li_pkt_type_values[] = {
+    { BCM_LI_PKT_TYPE_UNDECIDED, "undecided" },
+    { BCM_LI_PKT_TYPE_IPV4, "ipv4" },
+    { BCM_LI_PKT_TYPE_IPV6, "ipv6" },
+    { BCM_LI_PKT_TYPE_ETHERNET, "ethernet" },
+    { 0, NULL}
+};
+
+static const struct tok bcm_li_pkt_subtype_values[] = {
+    { 1, "single VLAN tag" },
+    { 2, "double VLAN tag" },
+    { 3, "untagged" },
+    { 0, NULL}
+};
+
+void
+bcm_li_print(netdissect_options *ndo,
+             const u_char *bp, u_int length)
+{
+	u_int shim, direction, pkt_type, pkt_subtype, li_id;
+
+	ndo->ndo_protocol = "bcm_li";
+	if (length < BCM_LI_SHIM_LEN) {
+	    ND_PRINT(" (length %u < %u)", length, BCM_LI_SHIM_LEN);
+	    goto invalid;
+	}
+	shim = GET_BE_U_4(bp);
+
+	direction = (shim >> 29) & 0x7;
+	pkt_type = (shim >> 25) & 0xf;
+	pkt_subtype = (shim >> 22) & 0x7;
+	li_id = shim & 0x3fffff;
+
+	length -= BCM_LI_SHIM_LEN;
+	bp += BCM_LI_SHIM_LEN;
+
+	ND_PRINT("%sBCM-LI-SHIM: direction %s, pkt-type %s, pkt-subtype %s, li-id %u%s",
+		 ndo->ndo_vflag ? "\n    " : "",
+		 tok2str(bcm_li_direction_values, "unknown", direction),
+		 tok2str(bcm_li_pkt_type_values, "unknown", pkt_type),
+		 tok2str(bcm_li_pkt_subtype_values, "unknown", pkt_subtype),
+		 li_id,
+		 ndo->ndo_vflag ? "\n    ": "");
+
+	if (!ndo->ndo_vflag) {
+	    ND_TCHECK_LEN(bp, length);
+	    return;
+	}
+
+	switch (pkt_type) {
+	case BCM_LI_PKT_TYPE_ETHERNET:
+	    ether_print(ndo, bp, length, ND_BYTES_AVAILABLE_AFTER(bp), NULL, NULL);
+	    break;
+	case BCM_LI_PKT_TYPE_IPV4:
+	    ip_print(ndo, bp, length);
+	    break;
+	case BCM_LI_PKT_TYPE_IPV6:
+	    ip6_print(ndo, bp, length);
+	    break;
+	case BCM_LI_PKT_TYPE_UNDECIDED:
+
+	    /*
+	     * Guess IP version from first nibble.
+	     */
+	    if ((GET_U_1(bp) >> 4) == 4) {
+		ip_print(ndo, bp, length);
+	    } else if ((GET_U_1(bp) >> 4) == 6) {
+		ip6_print(ndo, bp, length);
+	    } else {
+		ND_PRINT("unknown payload");
+	    }
+	    break;
+
+	default:
+	    goto invalid;
+	}
+
+	return;
+invalid:
+	nd_print_invalid(ndo);
+}
+