Merge remote-tracking branch 'goog/tcpdump'
* goog/tcpdump: (3066 commits)
Remove old version. Getting ready for new tcpdump 4.5
Support -Q for setting the capture direction.
Clean up the TLV processing loop.
With -A and -AA, don't send CRs to the standard output.
Use the new libpcap <pcap/nflog.h> for NFLOG definitions and declarations.
Do our own isascii(), isprint(), isgraph(), and toascii().
Fix a compiler warning.
Don't use the __attribute__((packed)) on most platforms.
The interval in an AODV HELLO extension is not aligned on a 4-byte boundary.
As with memcpy, so with memcmp.
More UNALIGNED_MEM{CPY,CMP} on IP addresses.
Another case where UNALIGNED_MEMCPY() is probably necessary.
No need for casting back and forth.
Only do the unaligned_mem{cpy,cmp} hack if necessary.
No need to declare unaligned_mem{cpy,cmp} in netdissect.h *and* interface.h.
More possibly-unaligned memcpy()s and assignments - use unaligned_memcpy().
Check for compiling for IPv6; don't check whether we can create an IPv6 socket.
Use unaligned_memcmp() to compare with IPv{4,6} addresses in a packet.
Use EXTRACT_nBITS even when just testing against zero.
Fix some more unaligned accesses.
...
Change-Id: I9e98707d30c989b9e32dcd5af798bd0746ab4434
diff --git a/print-rrcp.c b/print-rrcp.c
new file mode 100644
index 0000000..c5b1fdd
--- /dev/null
+++ b/print-rrcp.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2007 - Andrey "nording" Chernyak <andrew@nording.ru>
+ *
+ * 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.
+ *
+ * Format and print Realtek Remote Control Protocol (RRCP)
+ * and Realtek Echo Protocol (RRCP-REP) packets.
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-rrcp.c,v 1.2 2008-04-11 17:21:34 gianluca Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "extract.h"
+#include "ether.h"
+
+#ifndef ETH_ALEN
+#define ETH_ALEN 6
+#endif
+
+#define RRCP_OPCODE_MASK 0x7F /* 0x00 = hello, 0x01 = get, 0x02 = set */
+#define RRCP_ISREPLY 0x80 /* 0 = request to switch, 0x80 = reply from switch */
+
+#define RRCP_PROTO_OFFSET 0 /* proto - 1 byte, must be 1 */
+#define RRCP_OPCODE_ISREPLY_OFFSET 1 /* opcode and isreply flag - 1 byte */
+#define RRCP_AUTHKEY_OFFSET 2 /* authorization key - 2 bytes, 0x2379 by default */
+
+/* most packets */
+#define RRCP_REG_ADDR_OFFSET 4 /* register address - 2 bytes */
+#define RRCP_REG_DATA_OFFSET 6 /* register data - 4 bytes */
+#define RRCP_COOKIE1_OFFSET 10 /* 4 bytes */
+#define RRCP_COOKIE2_OFFSET 14 /* 4 bytes */
+
+/* hello reply packets */
+#define RRCP_DOWNLINK_PORT_OFFSET 4 /* 1 byte */
+#define RRCP_UPLINK_PORT_OFFSET 5 /* 1 byte */
+#define RRCP_UPLINK_MAC_OFFSET 6 /* 6 byte MAC address */
+#define RRCP_CHIP_ID_OFFSET 12 /* 2 bytes */
+#define RRCP_VENDOR_ID_OFFSET 14 /* 4 bytes */
+
+static const struct tok proto_values[] = {
+ { 1, "RRCP" },
+ { 2, "RRCP-REP" },
+ { 0, NULL }
+};
+
+static const struct tok opcode_values[] = {
+ { 0, "hello" },
+ { 1, "get" },
+ { 2, "set" },
+ { 0, NULL }
+};
+
+/*
+ * Print RRCP requests
+ */
+void
+rrcp_print(netdissect_options *ndo,
+ register const u_char *cp,
+ u_int length _U_)
+{
+ const u_char *rrcp;
+ u_int8_t rrcp_proto;
+ u_int8_t rrcp_opcode;
+ register const struct ether_header *ep;
+ char proto_str[16];
+ char opcode_str[32];
+
+ ep = (const struct ether_header *)cp;
+ rrcp = cp + ETHER_HDRLEN;
+
+ ND_TCHECK(*(rrcp + RRCP_PROTO_OFFSET));
+ rrcp_proto = *(rrcp + RRCP_PROTO_OFFSET);
+ ND_TCHECK(*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET));
+ rrcp_opcode = (*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_OPCODE_MASK;
+ ND_PRINT((ndo, "%s > %s, %s %s",
+ etheraddr_string(ESRC(ep)),
+ etheraddr_string(EDST(ep)),
+ tok2strbuf(proto_values,"RRCP-0x%02x",rrcp_proto,proto_str,sizeof(proto_str)),
+ ((*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY) ? "reply" : "query"));
+ if (rrcp_proto==1){
+ ND_PRINT((ndo, ": %s",
+ tok2strbuf(opcode_values,"unknown opcode (0x%02x)",rrcp_opcode,opcode_str,sizeof(opcode_str))));
+ }
+ if (rrcp_opcode==1 || rrcp_opcode==2){
+ ND_TCHECK2(*(rrcp + RRCP_REG_ADDR_OFFSET), 6);
+ ND_PRINT((ndo, " addr=0x%04x, data=0x%08x",
+ EXTRACT_LE_16BITS(rrcp + RRCP_REG_ADDR_OFFSET),
+ EXTRACT_LE_32BITS(rrcp + RRCP_REG_DATA_OFFSET)));
+ }
+ if (rrcp_proto==1){
+ ND_TCHECK2(*(rrcp + RRCP_AUTHKEY_OFFSET), 2);
+ ND_PRINT((ndo, ", auth=0x%04x",
+ EXTRACT_16BITS(rrcp + RRCP_AUTHKEY_OFFSET)));
+ }
+ if (rrcp_proto==1 && rrcp_opcode==0 &&
+ ((*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY)){
+ ND_TCHECK2(*(rrcp + RRCP_VENDOR_ID_OFFSET), 4);
+ ND_PRINT((ndo, " downlink_port=%d, uplink_port=%d, uplink_mac=%s, vendor_id=%08x ,chip_id=%04x ",
+ *(rrcp + RRCP_DOWNLINK_PORT_OFFSET),
+ *(rrcp + RRCP_UPLINK_PORT_OFFSET),
+ etheraddr_string(rrcp + RRCP_UPLINK_MAC_OFFSET),
+ EXTRACT_32BITS(rrcp + RRCP_VENDOR_ID_OFFSET),
+ EXTRACT_16BITS(rrcp + RRCP_CHIP_ID_OFFSET)));
+ }else if (rrcp_opcode==1 || rrcp_opcode==2 || rrcp_proto==2){
+ ND_TCHECK2(*(rrcp + RRCP_COOKIE2_OFFSET), 4);
+ ND_PRINT((ndo, ", cookie=0x%08x%08x ",
+ EXTRACT_32BITS(rrcp + RRCP_COOKIE2_OFFSET),
+ EXTRACT_32BITS(rrcp + RRCP_COOKIE1_OFFSET)));
+ }
+ if (!ndo->ndo_vflag)
+ return;
+ return;
+
+trunc:
+ ND_PRINT((ndo, "[|rrcp]"));
+}