]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-ether.c
From Carles Kishimoto <[email protected]>:
[tcpdump] / print-ether.c
index 2704148df8721eb77e17a8b8363fb53883e982cc..d2bbf1b71408dfb0d076b3975f4eaa134049eb03 100644 (file)
@@ -19,8 +19,8 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 #ifndef lint
-static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-ether.c,v 1.81 2003-05-28 12:56:52 hannes Exp $ (LBL)";
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-ether.c,v 1.95.2.6 2006-02-20 18:15:03 hannes Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -38,7 +38,43 @@ static const char rcsid[] =
 
 #include "ether.h"
 
-const u_char *snapend;
+const struct tok ethertype_values[] = { 
+    { ETHERTYPE_IP,            "IPv4" },
+    { ETHERTYPE_MPLS,          "MPLS unicast" },
+    { ETHERTYPE_MPLS_MULTI,    "MPLS multicast" },
+    { ETHERTYPE_IPV6,          "IPv6" },
+    { ETHERTYPE_8021Q,         "802.1Q" },
+    { ETHERTYPE_VMAN,          "VMAN" },
+    { ETHERTYPE_PUP,            "PUP" },
+    { ETHERTYPE_ARP,            "ARP"},
+    { ETHERTYPE_REVARP,         "Reverse ARP"},
+    { ETHERTYPE_NS,             "NS" },
+    { ETHERTYPE_SPRITE,         "Sprite" },
+    { ETHERTYPE_TRAIL,          "Trail" },
+    { ETHERTYPE_MOPDL,          "MOP DL" },
+    { ETHERTYPE_MOPRC,          "MOP RC" },
+    { ETHERTYPE_DN,             "DN" },
+    { ETHERTYPE_LAT,            "LAT" },
+    { ETHERTYPE_SCA,            "SCA" },
+    { ETHERTYPE_LANBRIDGE,      "Lanbridge" },
+    { ETHERTYPE_DECDNS,         "DEC DNS" },
+    { ETHERTYPE_DECDTS,         "DEC DTS" },
+    { ETHERTYPE_VEXP,           "VEXP" },
+    { ETHERTYPE_VPROD,          "VPROD" },
+    { ETHERTYPE_ATALK,          "Appletalk" },
+    { ETHERTYPE_AARP,           "Appletalk ARP" },
+    { ETHERTYPE_IPX,            "IPX" },
+    { ETHERTYPE_PPP,            "PPP" },
+    { ETHERTYPE_SLOW,           "Slow Protocols" },
+    { ETHERTYPE_PPPOED,         "PPPoE D" },
+    { ETHERTYPE_PPPOES,         "PPPoE S" },
+    { ETHERTYPE_EAPOL,          "EAPOL" },
+    { ETHERTYPE_JUMBO,          "Jumbo" },
+    { ETHERTYPE_LOOPBACK,       "Loopback" },
+    { ETHERTYPE_ISO,            "OSI" },
+    { ETHERTYPE_GRE_ISO,        "GRE-OSI" },
+    { 0, NULL}
+};
 
 static inline void
 ether_hdr_print(register const u_char *bp, u_int length)
@@ -54,8 +90,14 @@ ether_hdr_print(register const u_char *bp, u_int length)
                if (ntohs(ep->ether_type) <= ETHERMTU)
                          (void)printf(", 802.3");
                 else 
-                         (void)printf(", ethertype %s",
-                                      tok2str(ethertype_values,"0x%04x", ntohs(ep->ether_type)));            
+                         (void)printf(", ethertype %s (0x%04x)",
+                                      tok2str(ethertype_values,"Unknown", ntohs(ep->ether_type)),
+                                       ntohs(ep->ether_type));       
+        } else {
+                if (ntohs(ep->ether_type) <= ETHERMTU)
+                          (void)printf(", 802.3");
+                else 
+                          (void)printf(", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", ntohs(ep->ether_type)));  
         }
 
        (void)printf(", length %u: ", length);
@@ -86,7 +128,6 @@ ether_print(const u_char *p, u_int length, u_int caplen)
        /*
         * Is it (gag) an 802.3 encapsulation?
         */
-       extracted_ether_type = 0;
        if (ether_type <= ETHERMTU) {
                /* Try to print the LLC-layer header & higher layers */
                if (llc_print(p, length, caplen, ESRC(ep), EDST(ep),
@@ -95,7 +136,7 @@ ether_print(const u_char *p, u_int length, u_int caplen)
                        if (!eflag)
                                ether_hdr_print((u_char *)ep, length + ETHER_HDRLEN);
 
-                       if (!xflag && !qflag)
+                       if (!suppress_default_print)
                                default_print(p, caplen);
                }
        } else if (ether_encap_print(ether_type, p, length, caplen,
@@ -104,15 +145,15 @@ ether_print(const u_char *p, u_int length, u_int caplen)
                if (!eflag)
                        ether_hdr_print((u_char *)ep, length + ETHER_HDRLEN);
 
-               if (!xflag && !qflag)
+               if (!suppress_default_print)
                        default_print(p, caplen);
-       }
+       } 
 }
 
 /*
  * This is the top level routine of the printer.  'p' points
  * to the ether header of the packet, 'h->ts' is the timestamp,
- * 'h->length' is the length of the packet off the wire, and 'h->caplen'
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
  * is the number of bytes actually captured.
  */
 u_int
@@ -145,7 +186,7 @@ ether_encap_print(u_short ether_type, const u_char *p,
        switch (ether_type) {
 
        case ETHERTYPE_IP:
-               ip_print(p, length);
+               ip_print(gndo, p, length);
                return (1);
 
 #ifdef INET6
@@ -156,7 +197,7 @@ ether_encap_print(u_short ether_type, const u_char *p,
 
        case ETHERTYPE_ARP:
        case ETHERTYPE_REVARP:
-               arp_print(p, length, caplen);
+               arp_print(gndo, p, length, caplen);
                return (1);
 
        case ETHERTYPE_DN:
@@ -201,19 +242,55 @@ ether_encap_print(u_short ether_type, const u_char *p,
 
                if (llc_print(p, length, caplen, p - 18, p - 12,
                    extracted_ether_type) == 0) {
-                               ether_hdr_print(p - 18, length + 4);
+                        ether_hdr_print(p - 18, length + 4);
+
+                        if (!suppress_default_print) {
+                                default_print(p - 18, caplen + 4);
+                        }
                }
 
-               if (!xflag && !qflag)
-                       default_print(p - 18, caplen + 4);
 
                return (1);
 
+        case ETHERTYPE_JUMBO:
+                ether_type = ntohs(*(u_int16_t *)(p));
+                p += 2;
+                length -= 2;      
+                caplen -= 2;
+
+                if (ether_type > ETHERMTU) {
+                    if (eflag)
+                        printf("ethertype %s, ",
+                               tok2str(ethertype_values,"0x%04x", ether_type));
+                    goto recurse;
+                }
+
+                *extracted_ether_type = 0;
+
+                if (llc_print(p, length, caplen, p - 16, p - 10,
+                              extracted_ether_type) == 0) {
+                    ether_hdr_print(p - 16, length + 2);
+
+                    if (!suppress_default_print) {
+                            default_print(p - 16, caplen + 2);
+                    }
+                }
+
+                return (1);
+
+        case ETHERTYPE_ISO:
+                isoclns_print(p+1, length-1, length-1);
+                return(1);
+
        case ETHERTYPE_PPPOED:
        case ETHERTYPE_PPPOES:
                pppoe_print(p, length);
                return (1);
 
+       case ETHERTYPE_EAPOL:
+               eap_print(gndo, p, length);
+               return (1);
+
        case ETHERTYPE_PPP:
                if (length) {
                        printf(": ");
@@ -221,6 +298,10 @@ ether_encap_print(u_short ether_type, const u_char *p,
                }
                return (1);
 
+       case ETHERTYPE_SLOW:
+               slow_print(p, length);
+               return (1);
+
         case ETHERTYPE_LOOPBACK:
                 return (1);
 
@@ -238,3 +319,12 @@ ether_encap_print(u_short ether_type, const u_char *p,
                return (0);
        }
 }
+
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
+