* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#define NETDISSECT_REWORKED
+/* \summary: Ethernet printer */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
-#include "interface.h"
+#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "ethertype.h"
{ ETHERTYPE_GEONET, "GeoNet"},
{ ETHERTYPE_CALM_FAST, "CALM FAST"},
{ ETHERTYPE_AOE, "AoE" },
+ { ETHERTYPE_MEDSA, "MEDSA" },
{ 0, NULL}
};
const u_char *bp, u_int length)
{
register const struct ether_header *ep;
- uint16_t ether_type;
+ uint16_t length_type;
ep = (const struct ether_header *)bp;
etheraddr_string(ndo, ESRC(ep)),
etheraddr_string(ndo, EDST(ep))));
- ether_type = EXTRACT_16BITS(&ep->ether_type);
+ length_type = EXTRACT_16BITS(&ep->ether_length_type);
if (!ndo->ndo_qflag) {
- if (ether_type <= ETHERMTU)
- ND_PRINT((ndo, ", 802.3"));
- else
- ND_PRINT((ndo, ", ethertype %s (0x%04x)",
- tok2str(ethertype_values,"Unknown", ether_type),
- ether_type));
+ if (length_type <= ETHERMTU) {
+ ND_PRINT((ndo, ", 802.3"));
+ length = length_type;
+ } else
+ ND_PRINT((ndo, ", ethertype %s (0x%04x)",
+ tok2str(ethertype_values,"Unknown", length_type),
+ length_type));
} else {
- if (ether_type <= ETHERMTU)
- ND_PRINT((ndo, ", 802.3"));
- else
- ND_PRINT((ndo, ", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", ether_type)));
+ if (length_type <= ETHERMTU) {
+ ND_PRINT((ndo, ", 802.3"));
+ length = length_type;
+ } else
+ ND_PRINT((ndo, ", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", length_type)));
}
ND_PRINT((ndo, ", length %u: ", length));
* a pointer to a function that can print header information for that
* frame's protocol, and an argument to pass to that function.
*/
-void
+u_int
ether_print(netdissect_options *ndo,
const u_char *p, u_int length, u_int caplen,
void (*print_encap_header)(netdissect_options *ndo, const u_char *), const u_char *encap_header_arg)
{
- struct ether_header *ep;
+ const struct ether_header *ep;
u_int orig_length;
- u_short ether_type;
- u_short extracted_ether_type;
+ u_short length_type;
+ u_int hdrlen;
+ int llc_hdrlen;
+ struct lladdr_info src, dst;
- if (caplen < ETHER_HDRLEN || length < ETHER_HDRLEN) {
+ if (caplen < ETHER_HDRLEN) {
+ ND_PRINT((ndo, "[|ether]"));
+ return (caplen);
+ }
+ if (length < ETHER_HDRLEN) {
ND_PRINT((ndo, "[|ether]"));
- return;
+ return (length);
}
if (ndo->ndo_eflag) {
length -= ETHER_HDRLEN;
caplen -= ETHER_HDRLEN;
- ep = (struct ether_header *)p;
+ ep = (const struct ether_header *)p;
p += ETHER_HDRLEN;
+ hdrlen = ETHER_HDRLEN;
- ether_type = EXTRACT_16BITS(&ep->ether_type);
+ src.addr = ESRC(ep);
+ src.addr_string = etheraddr_string;
+ dst.addr = EDST(ep);
+ dst.addr_string = etheraddr_string;
+ length_type = EXTRACT_16BITS(&ep->ether_length_type);
recurse:
/*
* Is it (gag) an 802.3 encapsulation?
*/
- if (ether_type <= ETHERMTU) {
+ if (length_type <= ETHERMTU) {
/* Try to print the LLC-layer header & higher layers */
- if (llc_print(ndo, p, length, caplen, ESRC(ep), EDST(ep),
- &extracted_ether_type) == 0) {
- /* ether_type not known, print raw packet */
- if (!ndo->ndo_eflag) {
- if (print_encap_header != NULL)
- (*print_encap_header)(ndo, encap_header_arg);
- ether_hdr_print(ndo, (u_char *)ep, orig_length);
- }
-
+ llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
+ if (llc_hdrlen < 0) {
+ /* packet type not known, print raw packet */
if (!ndo->ndo_suppress_default_print)
ND_DEFAULTPRINT(p, caplen);
+ llc_hdrlen = -llc_hdrlen;
}
- } else if (ether_type == ETHERTYPE_8021Q ||
- ether_type == ETHERTYPE_8021Q9100 ||
- ether_type == ETHERTYPE_8021Q9200 ||
- ether_type == ETHERTYPE_8021QinQ) {
+ hdrlen += llc_hdrlen;
+ } else if (length_type == ETHERTYPE_8021Q ||
+ length_type == ETHERTYPE_8021Q9100 ||
+ length_type == ETHERTYPE_8021Q9200 ||
+ length_type == ETHERTYPE_8021QinQ) {
/*
* Print VLAN information, and then go back and process
* the enclosed type field.
*/
- if (caplen < 4 || length < 4) {
+ if (caplen < 4) {
+ ND_PRINT((ndo, "[|vlan]"));
+ return (hdrlen + caplen);
+ }
+ if (length < 4) {
ND_PRINT((ndo, "[|vlan]"));
- return;
+ return (hdrlen + length);
}
if (ndo->ndo_eflag) {
- uint16_t tag = EXTRACT_16BITS(p);
+ uint16_t tag = EXTRACT_16BITS(p);
ND_PRINT((ndo, "%s, ", ieee8021q_tci_string(tag)));
}
- ether_type = EXTRACT_16BITS(p + 2);
- if (ndo->ndo_eflag && ether_type > ETHERMTU)
- ND_PRINT((ndo, "ethertype %s, ", tok2str(ethertype_values,"0x%04x", ether_type)));
+ length_type = EXTRACT_16BITS(p + 2);
+ if (ndo->ndo_eflag && length_type > ETHERMTU)
+ ND_PRINT((ndo, "ethertype %s, ", tok2str(ethertype_values,"0x%04x", length_type)));
p += 4;
length -= 4;
caplen -= 4;
+ hdrlen += 4;
goto recurse;
- } else if (ether_type == ETHERTYPE_JUMBO) {
+ } else if (length_type == ETHERTYPE_JUMBO) {
/*
* Alteon jumbo frames.
* See
* there's an LLC header and payload.
*/
/* Try to print the LLC-layer header & higher layers */
- if (llc_print(ndo, p, length, caplen, ESRC(ep), EDST(ep),
- &extracted_ether_type) == 0) {
- /* ether_type not known, print raw packet */
- if (!ndo->ndo_eflag) {
- if (print_encap_header != NULL)
- (*print_encap_header)(ndo, encap_header_arg);
- ether_hdr_print(ndo, (u_char *)ep, orig_length);
- }
-
+ llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
+ if (llc_hdrlen < 0) {
+ /* packet type not known, print raw packet */
if (!ndo->ndo_suppress_default_print)
ND_DEFAULTPRINT(p, caplen);
+ llc_hdrlen = -llc_hdrlen;
}
+ hdrlen += llc_hdrlen;
} else {
- if (ethertype_print(ndo, ether_type, p, length, caplen) == 0) {
- /* ether_type not known, print raw packet */
+ if (ethertype_print(ndo, length_type, p, length, caplen, &src, &dst) == 0) {
+ /* type not known, print raw packet */
if (!ndo->ndo_eflag) {
if (print_encap_header != NULL)
(*print_encap_header)(ndo, encap_header_arg);
- ether_hdr_print(ndo, (u_char *)ep, orig_length);
+ ether_hdr_print(ndo, (const u_char *)ep, orig_length);
}
if (!ndo->ndo_suppress_default_print)
ND_DEFAULTPRINT(p, caplen);
}
}
+ return (hdrlen);
}
/*
* This is the top level routine of the printer. 'p' points
- * to the ether header of the packet, 'h->ts' is the timestamp,
- * 'h->len' is the length of the packet off the wire, and 'h->caplen'
- * is the number of bytes actually captured.
+ * to the ether header of the packet, 'h->len' is the length
+ * of the packet off the wire, and 'h->caplen' is the number
+ * of bytes actually captured.
*/
u_int
ether_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
const u_char *p)
{
- ether_print(ndo, p, h->len, h->caplen, NULL, NULL);
-
- return (ETHER_HDRLEN);
+ return (ether_print(ndo, p, h->len, h->caplen, NULL, NULL));
}
/*
* This is the top level routine of the printer. 'p' points
- * to the ether header of the packet, 'h->ts' is the timestamp,
- * 'h->len' is the length of the packet off the wire, and 'h->caplen'
- * is the number of bytes actually captured.
+ * to the ether header of the packet, 'h->len' is the length
+ * of the packet off the wire, and 'h->caplen' is the number
+ * of bytes actually captured.
*
* This is for DLT_NETANALYZER, which has a 4-byte pseudo-header
* before the Ethernet header.
}
/* Skip the pseudo-header. */
- ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL);
-
- return (4 + ETHER_HDRLEN);
+ return (4 + ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL));
}
/*
* This is the top level routine of the printer. 'p' points
- * to the ether header of the packet, 'h->ts' is the timestamp,
- * 'h->len' is the length of the packet off the wire, and 'h->caplen'
- * is the number of bytes actually captured.
+ * to the ether header of the packet, 'h->len' is the length
+ * of the packet off the wire, and 'h->caplen' is the number
+ * of bytes actually captured.
*
* This is for DLT_NETANALYZER_TRANSPARENT, which has a 4-byte
* pseudo-header, a 7-byte Ethernet preamble, and a 1-byte Ethernet SOF
}
/* Skip the pseudo-header, preamble, and SOF. */
- ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL);
-
- return (12 + ETHER_HDRLEN);
+ return (12 + ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL));
}
/*
int
ethertype_print(netdissect_options *ndo,
u_short ether_type, const u_char *p,
- u_int length, u_int caplen)
+ u_int length, u_int caplen,
+ const struct lladdr_info *src, const struct lladdr_info *dst)
{
switch (ether_type) {
case ETHERTYPE_ARP:
case ETHERTYPE_REVARP:
- arp_print(ndo, p, length, caplen);
+ arp_print(ndo, p, length, caplen);
return (1);
case ETHERTYPE_DN:
return (1);
case ETHERTYPE_RRCP:
- rrcp_print(ndo, p - 14 , length + 14);
+ rrcp_print(ndo, p, length, src, dst);
return (1);
case ETHERTYPE_PPP:
case ETHERTYPE_GEONET_OLD:
case ETHERTYPE_GEONET:
- geonet_print(ndo, p-14, p, length);
+ geonet_print(ndo, p, length, src);
return (1);
case ETHERTYPE_CALM_FAST:
- calm_fast_print(ndo, p-14, p, length);
+ calm_fast_print(ndo, p, length, src);
return (1);
case ETHERTYPE_AOE:
aoe_print(ndo, p, length);
return (1);
+ case ETHERTYPE_MEDSA:
+ medsa_print(ndo, p, length, caplen);
+ return (1);
+
case ETHERTYPE_LAT:
case ETHERTYPE_SCA:
case ETHERTYPE_MOPRC:
projects / tcpdump / blobdiff