* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#define NETDISSECT_REWORKED
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: Fiber Distributed Data Interface (FDDI) printer */
+
+#include <config.h>
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"
#include <string.h>
-#include "interface.h"
+#include "netdissect.h"
+#include "extract.h"
#include "addrtoname.h"
-#include "ether.h"
/*
* Based on Ultrix if_fddi.h
*/
struct fddi_header {
- u_char fddi_fc; /* frame control */
- u_char fddi_dhost[6];
- u_char fddi_shost[6];
+ nd_uint8_t fddi_fc; /* frame control */
+ nd_mac48 fddi_dhost;
+ nd_mac48 fddi_shost;
};
/*
/*
* Some FDDI interfaces use bit-swapped addresses.
*/
-#if defined(ultrix) || defined(__alpha) || defined(__bsdi) || defined(__NetBSD__) || defined(__linux__)
-int fddi_bitswap = 0;
+#if defined(__alpha) || defined(__NetBSD__) || defined(__linux__)
+static int fddi_bitswap = 0;
#else
-int fddi_bitswap = 1;
+static int fddi_bitswap = 1;
#endif
/*
/*
* Print FDDI frame-control bits
*/
-static inline void
+static void
print_fddi_fc(netdissect_options *ndo, u_char fc)
{
switch (fc) {
case FDDIFC_VOID: /* Void frame */
- ND_PRINT((ndo, "void "));
+ ND_PRINT("void ");
break;
case FDDIFC_NRT: /* Nonrestricted token */
- ND_PRINT((ndo, "nrt "));
+ ND_PRINT("nrt ");
break;
case FDDIFC_RT: /* Restricted token */
- ND_PRINT((ndo, "rt "));
+ ND_PRINT("rt ");
break;
case FDDIFC_SMT_INFO: /* SMT Info */
- ND_PRINT((ndo, "info "));
+ ND_PRINT("info ");
break;
case FDDIFC_SMT_NSA: /* SMT Next station adrs */
- ND_PRINT((ndo, "nsa "));
+ ND_PRINT("nsa ");
break;
case FDDIFC_MAC_BEACON: /* MAC Beacon frame */
- ND_PRINT((ndo, "beacon "));
+ ND_PRINT("beacon ");
break;
case FDDIFC_MAC_CLAIM: /* MAC Claim frame */
- ND_PRINT((ndo, "claim "));
+ ND_PRINT("claim ");
break;
default:
switch (fc & FDDIFC_CLFF) {
case FDDIFC_MAC:
- ND_PRINT((ndo, "mac%1x ", fc & FDDIFC_ZZZZ));
+ ND_PRINT("mac%1x ", fc & FDDIFC_ZZZZ);
break;
case FDDIFC_SMT:
- ND_PRINT((ndo, "smt%1x ", fc & FDDIFC_ZZZZ));
+ ND_PRINT("smt%1x ", fc & FDDIFC_ZZZZ);
break;
case FDDIFC_LLC_ASYNC:
- ND_PRINT((ndo, "async%1x ", fc & FDDIFC_ZZZZ));
+ ND_PRINT("async%1x ", fc & FDDIFC_ZZZZ);
break;
case FDDIFC_LLC_SYNC:
- ND_PRINT((ndo, "sync%1x ", fc & FDDIFC_ZZZZ));
+ ND_PRINT("sync%1x ", fc & FDDIFC_ZZZZ);
break;
case FDDIFC_IMP_ASYNC:
- ND_PRINT((ndo, "imp_async%1x ", fc & FDDIFC_ZZZZ));
+ ND_PRINT("imp_async%1x ", fc & FDDIFC_ZZZZ);
break;
case FDDIFC_IMP_SYNC:
- ND_PRINT((ndo, "imp_sync%1x ", fc & FDDIFC_ZZZZ));
+ ND_PRINT("imp_sync%1x ", fc & FDDIFC_ZZZZ);
break;
default:
- ND_PRINT((ndo, "%02x ", fc));
+ ND_PRINT("%02x ", fc);
break;
}
}
}
/* Extract src, dst addresses */
-static inline void
+static void
extract_fddi_addrs(const struct fddi_header *fddip, char *fsrc, char *fdst)
{
- register int i;
+ int i;
if (fddi_bitswap) {
/*
fdst[i] = fddi_bit_swap[fddip->fddi_dhost[i]];
for (i = 0; i < 6; ++i)
fsrc[i] = fddi_bit_swap[fddip->fddi_shost[i]];
- }
- else {
+ } else {
memcpy(fdst, (const char *)fddip->fddi_dhost, 6);
memcpy(fsrc, (const char *)fddip->fddi_shost, 6);
}
/*
* Print the FDDI MAC header
*/
-static inline void
+static void
fddi_hdr_print(netdissect_options *ndo,
- register const struct fddi_header *fddip, register u_int length,
- register const u_char *fsrc, register const u_char *fdst)
+ const struct fddi_header *fddip, u_int length,
+ const u_char *fsrc, const u_char *fdst)
{
const char *srcname, *dstname;
- srcname = etheraddr_string(fsrc);
- dstname = etheraddr_string(fdst);
-
- if (ndo->ndo_vflag)
- ND_PRINT((ndo, "%02x %s %s %d: ",
- fddip->fddi_fc,
- srcname, dstname,
- length));
- else if (ndo->ndo_qflag)
- ND_PRINT((ndo, "%s %s %d: ", srcname, dstname, length));
- else {
- print_fddi_fc(ndo, fddip->fddi_fc);
- ND_PRINT((ndo, "%s %s %d: ", srcname, dstname, length));
- }
+ srcname = mac48_string(ndo, fsrc);
+ dstname = mac48_string(ndo, fdst);
+
+ if (!ndo->ndo_qflag)
+ print_fddi_fc(ndo, GET_U_1(fddip->fddi_fc));
+ ND_PRINT("%s > %s, length %u: ",
+ srcname, dstname,
+ length);
}
-static inline void
+static void
fddi_smt_print(netdissect_options *ndo, const u_char *p _U_, u_int length _U_)
{
- ND_PRINT((ndo, "<SMT printer not yet implemented>"));
+ ND_PRINT("<SMT printer not yet implemented>");
}
-void
+u_int
fddi_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
{
const struct fddi_header *fddip = (const struct fddi_header *)p;
- struct ether_header ehdr;
- u_short extracted_ethertype;
+ uint8_t fc;
+ nd_mac48 srcmac, dstmac;
+ struct lladdr_info src, dst;
+ int llc_hdrlen;
+ ndo->ndo_protocol = "fddi";
if (caplen < FDDI_HDRLEN) {
- ND_PRINT((ndo, "[|fddi]"));
- return;
+ nd_print_trunc(ndo);
+ return (caplen);
}
+ fc = GET_U_1(fddip->fddi_fc);
+
/*
* Get the FDDI addresses into a canonical form
*/
- extract_fddi_addrs(fddip, (char *)ESRC(&ehdr), (char *)EDST(&ehdr));
+ extract_fddi_addrs(fddip, (char *)srcmac, (char *)dstmac);
if (ndo->ndo_eflag)
- fddi_hdr_print(ndo, fddip, length, ESRC(&ehdr), EDST(&ehdr));
+ fddi_hdr_print(ndo, fddip, length, srcmac, dstmac);
+
+ src.addr = srcmac;
+ src.addr_string = mac48_string;
+ dst.addr = dstmac;
+ dst.addr_string = mac48_string;
/* Skip over FDDI MAC header */
length -= FDDI_HDRLEN;
caplen -= FDDI_HDRLEN;
/* Frame Control field determines interpretation of packet */
- if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_LLC_ASYNC) {
+ if ((fc & FDDIFC_CLFF) == FDDIFC_LLC_ASYNC) {
/* Try to print the LLC-layer header & higher layers */
- if (llc_print(ndo, p, length, caplen, ESRC(&ehdr), EDST(&ehdr),
- &extracted_ethertype) == 0) {
+ llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
+ if (llc_hdrlen < 0) {
/*
* Some kinds of LLC packet we cannot
* handle intelligently
*/
- if (!ndo->ndo_eflag)
- fddi_hdr_print(ndo, fddip, length + FDDI_HDRLEN,
- ESRC(&ehdr), EDST(&ehdr));
- if (extracted_ethertype) {
- ND_PRINT((ndo, "(LLC %s) ",
- etherproto_string(htons(extracted_ethertype))));
- }
if (!ndo->ndo_suppress_default_print)
- ndo->ndo_default_print(ndo, p, caplen);
+ ND_DEFAULTPRINT(p, caplen);
+ llc_hdrlen = -llc_hdrlen;
}
- } else if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_SMT)
+ } else if ((fc & FDDIFC_CLFF) == FDDIFC_SMT) {
fddi_smt_print(ndo, p, caplen);
- else {
+ llc_hdrlen = 0;
+ } else {
/* Some kinds of FDDI packet we cannot handle intelligently */
if (!ndo->ndo_eflag)
- fddi_hdr_print(ndo, fddip, length + FDDI_HDRLEN, ESRC(&ehdr),
- EDST(&ehdr));
+ fddi_hdr_print(ndo, fddip, length + FDDI_HDRLEN, srcmac,
+ dstmac);
if (!ndo->ndo_suppress_default_print)
- ndo->ndo_default_print(ndo, p, caplen);
+ ND_DEFAULTPRINT(p, caplen);
+ llc_hdrlen = 0;
}
+ return (FDDI_HDRLEN + llc_hdrlen);
}
/*
* 'h->len' is the length of the packet off the wire, and 'h->caplen'
* is the number of bytes actually captured.
*/
-u_int
-fddi_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, register const u_char *p)
+void
+fddi_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
{
- fddi_print(ndo, p, h->len, h->caplen);
-
- return (FDDI_HDRLEN);
+ ndo->ndo_protocol = "fddi";
+ ndo->ndo_ll_hdr_len += fddi_print(ndo, p, h->len, h->caplen);
}
projects / tcpdump / blobdiff