* 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
+/* \summary: Realtek Remote Control Protocol (RRCP) printer */
+
+/*
+ * See, for example, section 8.20 "Realtek Remote Control Protocol" of
+ *
+ * http://realtek.info/pdf/rtl8324.pdf
+ *
+ * and section 7.22 "Realtek Remote Control Protocol" of
+ *
+ * http://realtek.info/pdf/rtl8326.pdf
+ *
+ * and this page on the OpenRRCP Wiki:
+ *
+ * http://openrrcp.org.ru/wiki/rrcp_protocol
+ *
+ * NOTE: none of them indicate the byte order of multi-byte fields in any
+ * obvious fashion.
+ */
#ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
#endif
-#include <tcpdump-stdinc.h>
-
-#include <stdio.h>
-#include <string.h>
+#include "netdissect-stdinc.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 */
*/
void
rrcp_print(netdissect_options *ndo,
- register const u_char *cp,
- u_int length _U_)
+ const u_char *cp,
+ u_int length _U_,
+ const struct lladdr_info *src,
+ const struct lladdr_info *dst)
{
- 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%02d",rrcp_proto,proto_str,sizeof(proto_str)),
- ((*(rrcp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY) ? "reply" : "query"));
+ uint8_t rrcp_proto;
+ uint8_t rrcp_opcode;
+
+ ndo->ndo_protocol = "rrcp";
+ rrcp_proto = GET_U_1(cp + RRCP_PROTO_OFFSET);
+ ND_TCHECK_1(cp + RRCP_OPCODE_ISREPLY_OFFSET);
+ rrcp_opcode = GET_U_1((cp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_OPCODE_MASK;
+ if (src != NULL && dst != NULL) {
+ ND_PRINT("%s > %s, ",
+ (src->addr_string)(ndo, src->addr),
+ (dst->addr_string)(ndo, dst->addr));
+ }
+ ND_PRINT("%s %s",
+ tok2str(proto_values,"RRCP-0x%02x",rrcp_proto),
+ ((GET_U_1(cp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY) ? "reply" : "query");
if (rrcp_proto==1){
- ND_PRINT((ndo, ": %s",
- tok2strbuf(opcode_values,"unknown opcode (0x%02d)",rrcp_opcode,opcode_str,sizeof(opcode_str))));
+ ND_PRINT(": %s",
+ tok2str(opcode_values,"unknown opcode (0x%02x)",rrcp_opcode));
}
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_16BITS(rrcp + RRCP_REG_ADDR_OFFSET),
- EXTRACT_32BITS(rrcp + RRCP_REG_DATA_OFFSET)));
+ ND_TCHECK_6(cp + RRCP_REG_ADDR_OFFSET);
+ ND_PRINT(" addr=0x%04x, data=0x%08x",
+ GET_LE_U_2(cp + RRCP_REG_ADDR_OFFSET),
+ GET_LE_U_4(cp + 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)));
+ ND_PRINT(", auth=0x%04x",
+ GET_BE_U_2(cp + 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)));
+ ((GET_U_1(cp + RRCP_OPCODE_ISREPLY_OFFSET)) & RRCP_ISREPLY)){
+ ND_PRINT(" downlink_port=%u, uplink_port=%u, uplink_mac=%s, vendor_id=%08x ,chip_id=%04x ",
+ GET_U_1(cp + RRCP_DOWNLINK_PORT_OFFSET),
+ GET_U_1(cp + RRCP_UPLINK_PORT_OFFSET),
+ GET_ETHERADDR_STRING(cp + RRCP_UPLINK_MAC_OFFSET),
+ GET_BE_U_4(cp + RRCP_VENDOR_ID_OFFSET),
+ GET_BE_U_2(cp + 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)));
+ ND_PRINT(", cookie=0x%08x%08x ",
+ GET_BE_U_4(cp + RRCP_COOKIE2_OFFSET),
+ GET_BE_U_4(cp + RRCP_COOKIE1_OFFSET));
}
- if (!ndo->ndo_vflag)
- return;
return;
trunc:
- ND_PRINT((ndo, "[|rrcp]"));
+ nd_print_trunc(ndo);
}
projects / tcpdump / blobdiff