diff options
Diffstat (limited to 'contrib/tcpdump/print-fddi.c')
| -rw-r--r-- | contrib/tcpdump/print-fddi.c | 154 |
1 files changed, 97 insertions, 57 deletions
diff --git a/contrib/tcpdump/print-fddi.c b/contrib/tcpdump/print-fddi.c index 94e9be7fb955..2b53c45bd9a5 100644 --- a/contrib/tcpdump/print-fddi.c +++ b/contrib/tcpdump/print-fddi.c @@ -21,27 +21,66 @@ * $FreeBSD$ */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-fddi.c,v 1.66 2005-11-13 12:12:41 guy Exp $ (LBL)"; -#endif - +#define NETDISSECT_REWORKED #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <tcpdump-stdinc.h> -#include <pcap.h> -#include <stdio.h> #include <string.h> #include "interface.h" #include "addrtoname.h" -#include "ethertype.h" - #include "ether.h" -#include "fddi.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]; +}; + +/* + * Length of an FDDI header; note that some compilers may pad + * "struct fddi_header" to a multiple of 4 bytes, for example, so + * "sizeof (struct fddi_header)" may not give the right + * answer. + */ +#define FDDI_HDRLEN 13 + +/* Useful values for fddi_fc (frame control) field */ + +/* + * FDDI Frame Control bits + */ +#define FDDIFC_C 0x80 /* Class bit */ +#define FDDIFC_L 0x40 /* Address length bit */ +#define FDDIFC_F 0x30 /* Frame format bits */ +#define FDDIFC_Z 0x0f /* Control bits */ + +/* + * FDDI Frame Control values. (48-bit addressing only). + */ +#define FDDIFC_VOID 0x40 /* Void frame */ +#define FDDIFC_NRT 0x80 /* Nonrestricted token */ +#define FDDIFC_RT 0xc0 /* Restricted token */ +#define FDDIFC_SMT_INFO 0x41 /* SMT Info */ +#define FDDIFC_SMT_NSA 0x4F /* SMT Next station adrs */ +#define FDDIFC_MAC_BEACON 0xc2 /* MAC Beacon frame */ +#define FDDIFC_MAC_CLAIM 0xc3 /* MAC Claim frame */ +#define FDDIFC_LLC_ASYNC 0x50 /* Async. LLC frame */ +#define FDDIFC_LLC_SYNC 0xd0 /* Sync. LLC frame */ +#define FDDIFC_IMP_ASYNC 0x60 /* Implementor Async. */ +#define FDDIFC_IMP_SYNC 0xe0 /* Implementor Synch. */ +#define FDDIFC_SMT 0x40 /* SMT frame */ +#define FDDIFC_MAC 0xc0 /* MAC frame */ + +#define FDDIFC_CLFF 0xF0 /* Class/Length/Format bits */ +#define FDDIFC_ZZZZ 0x0F /* Control bits */ /* * Some FDDI interfaces use bit-swapped addresses. @@ -82,7 +121,7 @@ int fddi_bitswap = 1; * - vj */ -static u_char fddi_bit_swap[] = { +static const u_char fddi_bit_swap[] = { 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, @@ -121,67 +160,67 @@ static u_char fddi_bit_swap[] = { * Print FDDI frame-control bits */ static inline void -print_fddi_fc(u_char fc) +print_fddi_fc(netdissect_options *ndo, u_char fc) { switch (fc) { case FDDIFC_VOID: /* Void frame */ - printf("void "); + ND_PRINT((ndo, "void ")); break; case FDDIFC_NRT: /* Nonrestricted token */ - printf("nrt "); + ND_PRINT((ndo, "nrt ")); break; case FDDIFC_RT: /* Restricted token */ - printf("rt "); + ND_PRINT((ndo, "rt ")); break; case FDDIFC_SMT_INFO: /* SMT Info */ - printf("info "); + ND_PRINT((ndo, "info ")); break; case FDDIFC_SMT_NSA: /* SMT Next station adrs */ - printf("nsa "); + ND_PRINT((ndo, "nsa ")); break; case FDDIFC_MAC_BEACON: /* MAC Beacon frame */ - printf("beacon "); + ND_PRINT((ndo, "beacon ")); break; case FDDIFC_MAC_CLAIM: /* MAC Claim frame */ - printf("claim "); + ND_PRINT((ndo, "claim ")); break; default: switch (fc & FDDIFC_CLFF) { case FDDIFC_MAC: - printf("mac%1x ", fc & FDDIFC_ZZZZ); + ND_PRINT((ndo, "mac%1x ", fc & FDDIFC_ZZZZ)); break; case FDDIFC_SMT: - printf("smt%1x ", fc & FDDIFC_ZZZZ); + ND_PRINT((ndo, "smt%1x ", fc & FDDIFC_ZZZZ)); break; case FDDIFC_LLC_ASYNC: - printf("async%1x ", fc & FDDIFC_ZZZZ); + ND_PRINT((ndo, "async%1x ", fc & FDDIFC_ZZZZ)); break; case FDDIFC_LLC_SYNC: - printf("sync%1x ", fc & FDDIFC_ZZZZ); + ND_PRINT((ndo, "sync%1x ", fc & FDDIFC_ZZZZ)); break; case FDDIFC_IMP_ASYNC: - printf("imp_async%1x ", fc & FDDIFC_ZZZZ); + ND_PRINT((ndo, "imp_async%1x ", fc & FDDIFC_ZZZZ)); break; case FDDIFC_IMP_SYNC: - printf("imp_sync%1x ", fc & FDDIFC_ZZZZ); + ND_PRINT((ndo, "imp_sync%1x ", fc & FDDIFC_ZZZZ)); break; default: - printf("%02x ", fc); + ND_PRINT((ndo, "%02x ", fc)); break; } } @@ -213,42 +252,43 @@ extract_fddi_addrs(const struct fddi_header *fddip, char *fsrc, char *fdst) * Print the FDDI MAC header */ static inline void -fddi_hdr_print(register const struct fddi_header *fddip, register u_int length, - register const u_char *fsrc, register const u_char *fdst) +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 char *srcname, *dstname; - srcname = etheraddr_string(fsrc); - dstname = etheraddr_string(fdst); + srcname = etheraddr_string(ndo, fsrc); + dstname = etheraddr_string(ndo, fdst); - if (vflag) - (void) printf("%02x %s %s %d: ", + if (ndo->ndo_vflag) + ND_PRINT((ndo, "%02x %s %s %d: ", fddip->fddi_fc, srcname, dstname, - length); - else if (qflag) - printf("%s %s %d: ", srcname, dstname, length); + length)); + else if (ndo->ndo_qflag) + ND_PRINT((ndo, "%s %s %d: ", srcname, dstname, length)); else { - (void) print_fddi_fc(fddip->fddi_fc); - (void) printf("%s %s %d: ", srcname, dstname, length); + print_fddi_fc(ndo, fddip->fddi_fc); + ND_PRINT((ndo, "%s %s %d: ", srcname, dstname, length)); } } static inline void -fddi_smt_print(const u_char *p _U_, u_int length _U_) +fddi_smt_print(netdissect_options *ndo, const u_char *p _U_, u_int length _U_) { - printf("<SMT printer not yet implemented>"); + ND_PRINT((ndo, "<SMT printer not yet implemented>")); } void -fddi_print(const u_char *p, u_int length, u_int caplen) +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; if (caplen < FDDI_HDRLEN) { - printf("[|fddi]"); + ND_PRINT((ndo, "[|fddi]")); return; } @@ -257,8 +297,8 @@ fddi_print(const u_char *p, u_int length, u_int caplen) */ extract_fddi_addrs(fddip, (char *)ESRC(&ehdr), (char *)EDST(&ehdr)); - if (eflag) - fddi_hdr_print(fddip, length, ESRC(&ehdr), EDST(&ehdr)); + if (ndo->ndo_eflag) + fddi_hdr_print(ndo, fddip, length, ESRC(&ehdr), EDST(&ehdr)); /* Skip over FDDI MAC header */ length -= FDDI_HDRLEN; @@ -268,31 +308,31 @@ fddi_print(const u_char *p, u_int length, u_int caplen) /* Frame Control field determines interpretation of packet */ if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_LLC_ASYNC) { /* Try to print the LLC-layer header & higher layers */ - if (llc_print(p, length, caplen, ESRC(&ehdr), EDST(&ehdr), + if (llc_print(ndo, p, length, caplen, ESRC(&ehdr), EDST(&ehdr), &extracted_ethertype) == 0) { /* * Some kinds of LLC packet we cannot * handle intelligently */ - if (!eflag) - fddi_hdr_print(fddip, length + FDDI_HDRLEN, + if (!ndo->ndo_eflag) + fddi_hdr_print(ndo, fddip, length + FDDI_HDRLEN, ESRC(&ehdr), EDST(&ehdr)); if (extracted_ethertype) { - printf("(LLC %s) ", - etherproto_string(htons(extracted_ethertype))); + ND_PRINT((ndo, "(LLC %s) ", + etherproto_string(htons(extracted_ethertype)))); } - if (!suppress_default_print) - default_print(p, caplen); + if (!ndo->ndo_suppress_default_print) + ND_DEFAULTPRINT(p, caplen); } } else if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_SMT) - fddi_smt_print(p, caplen); + fddi_smt_print(ndo, p, caplen); else { /* Some kinds of FDDI packet we cannot handle intelligently */ - if (!eflag) - fddi_hdr_print(fddip, length + FDDI_HDRLEN, ESRC(&ehdr), + if (!ndo->ndo_eflag) + fddi_hdr_print(ndo, fddip, length + FDDI_HDRLEN, ESRC(&ehdr), EDST(&ehdr)); - if (!suppress_default_print) - default_print(p, caplen); + if (!ndo->ndo_suppress_default_print) + ND_DEFAULTPRINT(p, caplen); } } @@ -303,9 +343,9 @@ fddi_print(const u_char *p, u_int length, u_int caplen) * is the number of bytes actually captured. */ u_int -fddi_if_print(const struct pcap_pkthdr *h, register const u_char *p) +fddi_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, register const u_char *p) { - fddi_print(p, h->len, h->caplen); + fddi_print(ndo, p, h->len, h->caplen); return (FDDI_HDRLEN); } |