/* packet-eigrp.c
+ * Routines for EIGRP dissection
+ * Copyright 2000, Paul Ionescu <paul@acorp.ro>
*
- * $Id: packet-eigrp.c,v 1.5 2000/08/07 03:20:29 guy Exp $
+ * $Id: packet-eigrp.c,v 1.9 2000/11/19 08:53:56 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
#include "packet-ip.h"
#include "packet-ipx.h"
-/* EIGRP Structs and Definitions. */
-
-/* EIGRP Opcodes */
-
#define EIGRP_UPDATE 0x01
#define EIGRP_REQUEST 0x02
#define EIGRP_QUERY 0x03
#define EIGRP_REPLY 0x04
#define EIGRP_HELLO 0x05
+#define EIGRP_SAP 0x06
+#define EIGRP_HI 0x20 /* This value is for my own need to make a difference between Hello and Ack */
+#define EIGRP_ACK 0x40 /* This value is for my own need to make a difference between Hello and Ack */
+
+#define TLV_PAR 0x0001
+#define TLV_SEQ 0x0003
+#define TLV_SV 0x0004
+#define TLV_NMS 0x0005
+#define TLV_IP_INT 0x0102
+#define TLV_IP_EXT 0x0103
+#define TLV_AT_INT 0x0202
+#define TLV_AT_EXT 0x0203
+#define TLV_AT_CBL 0x0204
+#define TLV_IPX_INT 0x0302
+#define TLV_IPX_EXT 0x0303
-typedef struct _e_eigrp
- {
- guint8 eigrp_version;
- guint8 eigrp_opcode;
- guint16 eigrp_checksum;
- guint16 eigrp_subnets;
- guint16 eigrp_networks;
- guint32 eigrp_sequence;
- guint32 eigrp_asnumber;
- guint8 eigrp_type1;
- guint8 eigrp_subtype1;
- guint16 eigrp_length1;
- guint16 eigrp_holdtime;
- guint8 eigrp_type2;
- guint8 eigrp_subtype2;
- guint16 eigrp_length2;
- guint8 eigrp_level;
- guint16 eigrp_dummy;
- } e_eigrp;
-
-static int proto_eigrp = -1;
+#define EIGRP_HEADER_LENGTH 20
+
+static gint proto_eigrp = -1;
+
+static gint hf_eigrp_opcode = -1;
+static gint hf_eigrp_as = -1;
+static gint hf_eigrp_tlv = -1;
static gint ett_eigrp = -1;
+static gint ett_tlv = -1;
static const value_string eigrp_opcode_vals[] = {
{ EIGRP_HELLO, "Hello/Ack" },
{ EIGRP_REPLY, "Reply" },
{ EIGRP_QUERY, "Query" },
{ EIGRP_REQUEST, "Request" },
+ { EIGRP_SAP, "IPX/SAP Update" },
+ { EIGRP_HI, "Hello" },
+ { EIGRP_ACK, "Acknowledge" },
{ 0, NULL }
};
+static const value_string eigrp_tlv_vals[] = {
+ { TLV_PAR, "EIGRP Parameters"},
+ { TLV_SEQ , "Sequence"},
+ { TLV_SV, "Software Version"},
+ { TLV_NMS , "Next multicast sequence"},
+ { TLV_IP_INT, "IP internal route"},
+ { TLV_IP_EXT, "IP external route"},
+ { TLV_AT_INT, "AppleTalk internal route"},
+ { TLV_AT_EXT, "AppleTalk external route"},
+ { TLV_AT_CBL, "AppleTalk cable configuration"},
+ { TLV_IPX_INT, "IPX internal route"},
+ { TLV_IPX_EXT, "IPX external route"},
+ { 0, NULL}
+};
+
+static const value_string eigrp_pid_vals[] = {
+ { 1, "IGRP"},
+ { 2, "EIGRP"},
+ { 3, "Static Route"},
+ { 4, "RIP"},
+ { 5, "Hello"},
+ { 6, "OSPF"},
+ { 7, "IS-IS"},
+ { 8, "EGP"},
+ { 9, "BGP"},
+ { 10, "IDRP"},
+ { 11, "Connected link"},
+ { 0, NULL}
+};
+
+
+static void dissect_eigrp_par (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_seq (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_sv (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_nms (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+
+static void dissect_eigrp_ip_int (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_ip_ext (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+
+static void dissect_eigrp_ipx_int (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_ipx_ext (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+
+static void dissect_eigrp_at_cbl (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_at_int (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+static void dissect_eigrp_at_ext (tvbuff_t *tvb, proto_tree *tree, proto_item *ti);
+
static void
-dissect_eigrp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
- e_eigrp ih;
- proto_tree *eigrp_tree;
- proto_item *ti;
- guint16 cksum;
+dissect_eigrp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
- /* Avoids alignment problems on many architectures. */
- memcpy(&ih, &pd[offset], sizeof(e_eigrp));
- /* To do: check for runts, errs, etc. */
- cksum = ntohs(ih.eigrp_checksum);
+ proto_tree *eigrp_tree,*tlv_tree;
+ proto_item *ti;
+ tvbuff_t *next_tvb;
+
+ guint opcode,opcode_tmp;
+ guint16 tlv,size, offset = EIGRP_HEADER_LENGTH;
+ guint32 ack;
+
+ CHECK_DISPLAY_AS_DATA(proto_eigrp, tvb, pinfo, tree);
- if (check_col(fd, COL_PROTOCOL))
- col_add_str(fd, COL_PROTOCOL, "EIGRP");
- if (check_col(fd, COL_INFO))
- col_add_str(fd, COL_INFO,
- val_to_str( ih.eigrp_opcode, eigrp_opcode_vals, "Unknown (0x%04x)"));
+ pinfo->current_proto = "EIGRP";
+
+ opcode_tmp=opcode=tvb_get_guint8(tvb,1);
+ ack = tvb_get_ntohl(tvb,12);
+ if (opcode==EIGRP_HELLO) { if (ack == 0) opcode_tmp=EIGRP_HI; else opcode_tmp=EIGRP_ACK; }
+
+ if (check_col(pinfo->fd, COL_PROTOCOL))
+ col_set_str(pinfo->fd, COL_PROTOCOL, "EIGRP");
+ if (check_col(pinfo->fd, COL_INFO))
+ col_add_str(pinfo->fd, COL_INFO,
+ val_to_str(opcode_tmp , eigrp_opcode_vals, "Unknown (0x%04x)"));
+
+
+
+
if (tree) {
- ti = proto_tree_add_item(tree, proto_eigrp, NullTVB, offset, END_OF_FRAME, FALSE);
+ ti = proto_tree_add_protocol_format(tree, proto_eigrp, tvb, 0,
+ tvb_length(tvb), "Cisco EIGRP ");
+
eigrp_tree = proto_item_add_subtree(ti, ett_eigrp);
- proto_tree_add_text(eigrp_tree, NullTVB, offset, 1, "Version: %u", ih.eigrp_version);
- proto_tree_add_text(eigrp_tree, NullTVB, offset + 1, 1, "Opcode: %u (%s)", ih.eigrp_opcode,
- val_to_str( ih.eigrp_opcode, eigrp_opcode_vals, "Unknown") );
- proto_tree_add_text(eigrp_tree, NullTVB, offset + 2, 2, "Checksum: 0x%x", cksum);
- proto_tree_add_text(eigrp_tree, NullTVB, offset + 4, 2, "Subnets in local net: %u", ih.eigrp_subnets);
- proto_tree_add_text(eigrp_tree, NullTVB, offset + 6, 2, "Networks in Autonomous System: %d", ih.eigrp_networks);
- proto_tree_add_text(eigrp_tree, NullTVB, offset + 8, 4, "Sequence Number: 0x%x", ih.eigrp_sequence);
- proto_tree_add_text(eigrp_tree, NullTVB, offset + 12, 4, "Autonomous System number: %u", ih.eigrp_asnumber);
+ proto_tree_add_text (eigrp_tree, tvb, 0,1,"Version = %u",tvb_get_guint8(tvb,0)) ;
+ proto_tree_add_uint_format (eigrp_tree, hf_eigrp_opcode, tvb, 1,1,opcode,"Opcode = %u (%s)",opcode,val_to_str(opcode_tmp,eigrp_opcode_vals, "Unknown")) ;
+ proto_tree_add_text (eigrp_tree, tvb, 2,2,"Checksum = 0x%04x",tvb_get_ntohs(tvb,2)) ;
+ proto_tree_add_text (eigrp_tree, tvb, 4,4,"Flags = 0x%08x",tvb_get_ntohl(tvb,4)) ;
+ proto_tree_add_text (eigrp_tree, tvb, 8,4,"Sequence = %u",tvb_get_ntohl(tvb,8)) ;
+ proto_tree_add_text (eigrp_tree, tvb, 12,4,"Acknowledge = %u",tvb_get_ntohl(tvb,12)) ;
+ proto_tree_add_uint (eigrp_tree, hf_eigrp_as, tvb, 16,4,tvb_get_ntohl(tvb,16)) ;
+
+ while ( tvb_length_remaining(tvb,offset)>0 ) {
+
+ tlv = tvb_get_ntohs(tvb,offset);
+ size = tvb_get_ntohs(tvb,offset+2);
+
+ ti = proto_tree_add_notext (eigrp_tree, tvb, offset,size);
+
+ tlv_tree = proto_item_add_subtree (ti, ett_tlv);
+ proto_tree_add_uint_format (tlv_tree,hf_eigrp_tlv, tvb,offset,2,tlv,"Type = 0x%04x (%s)",tlv,val_to_str(tlv,eigrp_tlv_vals, "Unknown")) ;
+ proto_tree_add_text (tlv_tree,tvb,offset+2,2,"Size = %u bytes",size) ;
+
+ next_tvb = tvb_new_subset(tvb, offset+4, size-4, -1);
+
+ switch (tlv){
+ case TLV_PAR:
+ dissect_eigrp_par(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_SEQ:
+ dissect_eigrp_seq(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_SV:
+ dissect_eigrp_sv(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_NMS:
+ dissect_eigrp_nms(next_tvb, tlv_tree, ti);
+ break;
+
+ case TLV_IP_INT:
+ dissect_eigrp_ip_int(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_IP_EXT:
+ dissect_eigrp_ip_ext(next_tvb, tlv_tree, ti);
+ break;
+
+ case TLV_IPX_INT:
+ dissect_eigrp_ipx_int(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_IPX_EXT:
+ dissect_eigrp_ipx_ext(next_tvb, tlv_tree, ti);
+ break;
+
+ case TLV_AT_CBL:
+ dissect_eigrp_at_cbl(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_AT_INT:
+ dissect_eigrp_at_int(next_tvb, tlv_tree, ti);
+ break;
+ case TLV_AT_EXT:
+ dissect_eigrp_at_ext(next_tvb, tlv_tree, ti);
+ break;
+
+ default:
+ proto_item_set_text(ti,"Unknown TLV (0x%04x)",tlv) ;
+ };
+
+ offset+=size;
+ }
+
}
}
+
+
+static void dissect_eigrp_par (tvbuff_t *tvb, proto_tree *tree, proto_item *ti) {
+ proto_tree_add_text (tree,tvb,0,1,"K1 = %u",tvb_get_guint8(tvb,0));
+ proto_tree_add_text (tree,tvb,1,1,"K2 = %u",tvb_get_guint8(tvb,1));
+ proto_tree_add_text (tree,tvb,2,1,"K3 = %u",tvb_get_guint8(tvb,2));
+ proto_tree_add_text (tree,tvb,3,1,"K4 = %u",tvb_get_guint8(tvb,3));
+ proto_tree_add_text (tree,tvb,4,1,"K5 = %u",tvb_get_guint8(tvb,4));
+ proto_tree_add_text (tree,tvb,5,1,"Rezerved");
+ proto_tree_add_text (tree,tvb,6,2,"Hold Time = %u",tvb_get_ntohs(tvb,6));
+ proto_item_set_text (ti,"%s",match_strval(TLV_PAR,eigrp_tlv_vals));
+
+}
+
+static void dissect_eigrp_seq (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{ guint8 addr_len;
+ addr_len=tvb_get_guint8(tvb,0);
+ proto_tree_add_text (tree,tvb,0,1,"Address length = %u",addr_len);
+ switch (addr_len){
+ case 4:
+ proto_tree_add_text (tree,tvb,1,addr_len,"IP Address = %u.%u.%u.%u",tvb_get_guint8(tvb,1),tvb_get_guint8(tvb,2),tvb_get_guint8(tvb,3),tvb_get_guint8(tvb,4));
+ break;
+ case 10:
+ proto_tree_add_text (tree,tvb,1,addr_len,"IPX Address = %08x.%04x.%04x.%04x",tvb_get_ntohl(tvb,1),tvb_get_ntohs(tvb,5),tvb_get_ntohs(tvb,7),tvb_get_ntohs(tvb,9));
+ break;
+ default:
+ /* nothing */
+ ;
+ }
+ proto_item_set_text (ti,"%s",match_strval(TLV_SEQ,eigrp_tlv_vals));
+
+}
+
+static void dissect_eigrp_sv (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,2," IOS release version = %u.%u",tvb_get_guint8(tvb,0),tvb_get_guint8(tvb,1));
+ proto_tree_add_text (tree,tvb,2,2,"EIGRP release version = %u.%u",tvb_get_guint8(tvb,2),tvb_get_guint8(tvb,3));
+ proto_item_set_text (ti,"%s : IOS=%u.%u, EIGRP=%u.%u ",match_strval(TLV_SV,eigrp_tlv_vals),tvb_get_guint8(tvb,0),tvb_get_guint8(tvb,1),tvb_get_guint8(tvb,2),tvb_get_guint8(tvb,3));
+
+}
+
+static void dissect_eigrp_nms (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,4,"Next Multicast Sequence = %u",tvb_get_ntohl(tvb,0));
+ proto_item_set_text (ti,"%s : %u",match_strval(TLV_NMS,eigrp_tlv_vals),tvb_get_ntohl(tvb,0));
+}
+
+
+
+static void dissect_eigrp_ip_int (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ guint8 ip_addr[4],length,addr_len;
+ tvb_memcpy(tvb,ip_addr,0,4);
+ proto_tree_add_text (tree,tvb,0,4, "Next Hop = %s",ip_to_str(ip_addr));
+ proto_tree_add_text (tree,tvb,4,4, "Delay = %u",tvb_get_ntohl(tvb,4));
+ proto_tree_add_text (tree,tvb,8,4, "Bandwidth = %u",tvb_get_ntohl(tvb,8));
+ proto_tree_add_text (tree,tvb,12,3,"MTU = %u",tvb_get_ntoh24(tvb,12));
+ proto_tree_add_text (tree,tvb,15,1,"Hop Count = %u",tvb_get_guint8(tvb,15));
+ proto_tree_add_text (tree,tvb,16,1,"Reliability = %u",tvb_get_guint8(tvb,16));
+ proto_tree_add_text (tree,tvb,17,1,"Load = %u",tvb_get_guint8(tvb,17));
+ proto_tree_add_text (tree,tvb,18,2,"Rezerved ");
+ length=tvb_get_guint8(tvb,20);
+ proto_tree_add_text (tree,tvb,20,1,"Prefix Length = %u",length);
+ if (length % 8 == 0) addr_len=length/8 ; else addr_len=length/8+1;
+ ip_addr[0]=ip_addr[1]=ip_addr[2]=ip_addr[3]=0;
+ tvb_memcpy(tvb,ip_addr,21,addr_len);
+ proto_tree_add_text (tree,tvb,21,addr_len,"Destination = %s",ip_to_str(ip_addr));
+ proto_item_set_text (ti,"%s = %s/%u%s",match_strval(TLV_IP_INT,eigrp_tlv_vals),ip_to_str(ip_addr),length,((tvb_get_ntohl(tvb,4)==0xffffffff)?" - Destination unreachable":""));
+}
+
+static void dissect_eigrp_ip_ext (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ guint8 ip_addr[4],length,addr_len;
+ tvb_memcpy(tvb,ip_addr,0,4);
+ proto_tree_add_text (tree,tvb,0,4,"Next Hop = %s",ip_to_str(ip_addr));
+ tvb_memcpy(tvb,ip_addr,4,4);
+ proto_tree_add_text (tree,tvb,4,4,"Originating router = %s",ip_to_str(ip_addr));
+ proto_tree_add_text (tree,tvb,8,4,"Originating A.S. = %u",tvb_get_ntohl(tvb,8));
+ proto_tree_add_text (tree,tvb,12,4,"Arbitrary tag = %u",tvb_get_ntohl(tvb,12));
+ proto_tree_add_text (tree,tvb,16,4,"External protocol metric = %u",tvb_get_ntohl(tvb,16));
+ proto_tree_add_text (tree,tvb,20,2,"Rezerved");
+ proto_tree_add_text (tree,tvb,22,1,"External protocol ID = %u (%s)",tvb_get_guint8(tvb,22),val_to_str(tvb_get_guint8(tvb,22),eigrp_pid_vals, "Unknown"));
+ proto_tree_add_text (tree,tvb,23,1,"Flags = 0x%0x",tvb_get_guint8(tvb,23));
+
+ proto_tree_add_text (tree,tvb,24,4,"Delay = %u",tvb_get_ntohl(tvb,24));
+ proto_tree_add_text (tree,tvb,28,4,"Bandwidth = %u",tvb_get_ntohl(tvb,28));
+ proto_tree_add_text (tree,tvb,32,3,"MTU = %u",tvb_get_ntoh24(tvb,32));
+ proto_tree_add_text (tree,tvb,35,1,"Hop Count = %u",tvb_get_guint8(tvb,35));
+ proto_tree_add_text (tree,tvb,36,1,"Reliability = %u",tvb_get_guint8(tvb,36));
+ proto_tree_add_text (tree,tvb,37,1,"Load = %u",tvb_get_guint8(tvb,37));
+ proto_tree_add_text (tree,tvb,38,2,"Rezerved ");
+ length=tvb_get_guint8(tvb,40);
+ proto_tree_add_text (tree,tvb,40,1,"Prefix Length = %u",length);
+ if (length % 8 == 0) addr_len=length/8 ; else addr_len=length/8+1;
+ ip_addr[0]=ip_addr[1]=ip_addr[2]=ip_addr[3]=0;
+ tvb_memcpy(tvb,ip_addr,41,addr_len);
+ proto_tree_add_text (tree,tvb,41,addr_len,"Destination = %s",ip_to_str(ip_addr));
+ proto_item_set_text (ti,"%s = %s/%u%s",match_strval(TLV_IP_EXT,eigrp_tlv_vals),ip_to_str(ip_addr),length,((tvb_get_ntohl(tvb,24)==0xffffffff)?" - Destination unreachable":""));
+}
+
+
+
+static void dissect_eigrp_ipx_int (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,4,"Next Hop Address = %08x",tvb_get_ntohl(tvb,4));
+ proto_tree_add_text (tree,tvb,4,6,"Next Hop ID = %04x:%04x:%04x",tvb_get_ntohs(tvb,4),tvb_get_ntohs(tvb,6),tvb_get_ntohs(tvb,8));
+ proto_tree_add_text (tree,tvb,10,4,"Delay = %u",tvb_get_ntohl(tvb,10));
+ proto_tree_add_text (tree,tvb,14,4,"Bandwidth = %u",tvb_get_ntohl(tvb,14));
+ proto_tree_add_text (tree,tvb,18,3,"MTU = %u",tvb_get_ntoh24(tvb,18));
+ proto_tree_add_text (tree,tvb,21,1,"Hop Count = %u",tvb_get_guint8(tvb,21));
+ proto_tree_add_text (tree,tvb,22,1,"Reliability = %u",tvb_get_guint8(tvb,22));
+ proto_tree_add_text (tree,tvb,23,1,"Load = %u",tvb_get_guint8(tvb,23));
+ proto_tree_add_text (tree,tvb,24,2,"Rezerved ");
+ proto_tree_add_text (tree,tvb,26,4,"Destination Address = %08x",tvb_get_ntohl(tvb,26));
+ proto_item_set_text (ti,"%s = %08x%s",match_strval(TLV_IPX_INT,eigrp_tlv_vals),tvb_get_ntohl(tvb,26),((tvb_get_ntohl(tvb,10)==0xffffffff)?" - Destination unreachable":""));
+}
+
+static void dissect_eigrp_ipx_ext (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,4,"Next Hop Address = %08x",tvb_get_ntohl(tvb,4));
+ proto_tree_add_text (tree,tvb,4,6,"Next Hop ID = %04x:%04x:%04x",tvb_get_ntohs(tvb,4),tvb_get_ntohs(tvb,6),tvb_get_ntohs(tvb,8));
+
+ proto_tree_add_text (tree,tvb,10,6,"Originating router ID = %04x:%04x:%04x",tvb_get_ntohs(tvb,10),tvb_get_ntohs(tvb,12),tvb_get_ntohs(tvb,14));
+ proto_tree_add_text (tree,tvb,16,4,"Originating A.S. = %u",tvb_get_ntohl(tvb,16));
+ proto_tree_add_text (tree,tvb,20,4,"Arbitrary tag = %u",tvb_get_ntohl(tvb,20));
+ proto_tree_add_text (tree,tvb,24,1,"External protocol = %u",tvb_get_guint8(tvb,24));
+ proto_tree_add_text (tree,tvb,25,1,"Rezerved");
+ proto_tree_add_text (tree,tvb,26,2,"External metric = %u ",tvb_get_ntohs(tvb,26));
+ proto_tree_add_text (tree,tvb,28,2,"External delay = %u ",tvb_get_ntohs(tvb,28));
+
+ proto_tree_add_text (tree,tvb,30,4,"Delay = %u",tvb_get_ntohl(tvb,30));
+ proto_tree_add_text (tree,tvb,34,4,"Bandwidth = %u",tvb_get_ntohl(tvb,34));
+ proto_tree_add_text (tree,tvb,38,3,"MTU = %u",tvb_get_ntoh24(tvb,38));
+ proto_tree_add_text (tree,tvb,41,1,"Hop Count = %u",tvb_get_guint8(tvb,41));
+ proto_tree_add_text (tree,tvb,42,1,"Reliability = %u",tvb_get_guint8(tvb,42));
+ proto_tree_add_text (tree,tvb,43,1,"Load = %u",tvb_get_guint8(tvb,43));
+ proto_tree_add_text (tree,tvb,44,2,"Rezerved ");
+ proto_tree_add_text (tree,tvb,46,4,"Destination Address = %08x",tvb_get_ntohl(tvb,46));
+ proto_item_set_text (ti,"%s = %08x%s",match_strval(TLV_IPX_EXT,eigrp_tlv_vals),tvb_get_ntohl(tvb,46),((tvb_get_ntohl(tvb,30)==0xffffffff)?" - Destination unreachable":""));
+
+}
+
+
+
+static void dissect_eigrp_at_cbl (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,4,"AppleTalk Cable Range = %u-%u",tvb_get_ntohs(tvb,0),tvb_get_ntohs(tvb,2));
+ proto_tree_add_text (tree,tvb,4,4,"AppleTalk Router ID = %u",tvb_get_ntohl(tvb,4));
+ proto_item_set_text (ti,"%s : Cable range= %u-%u, Router ID= %u",match_strval(TLV_AT_CBL,eigrp_tlv_vals),tvb_get_ntohs(tvb,0),tvb_get_ntohs(tvb,2),tvb_get_ntohl(tvb,4));
+
+}
+
+static void dissect_eigrp_at_int (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,4,"Next Hop Address = %u.%u",tvb_get_ntohs(tvb,0),tvb_get_ntohs(tvb,2));
+
+ proto_tree_add_text (tree,tvb,4,4,"Delay = %u",tvb_get_ntohl(tvb,4));
+ proto_tree_add_text (tree,tvb,8,4,"Bandwidth = %u",tvb_get_ntohl(tvb,8));
+ proto_tree_add_text (tree,tvb,12,3,"MTU = %u",tvb_get_ntoh24(tvb,12));
+ proto_tree_add_text (tree,tvb,15,1,"Hop Count = %u",tvb_get_guint8(tvb,15));
+ proto_tree_add_text (tree,tvb,16,1,"Reliability = %u",tvb_get_guint8(tvb,16));
+ proto_tree_add_text (tree,tvb,17,1,"Load = %u",tvb_get_guint8(tvb,17));
+ proto_tree_add_text (tree,tvb,18,2,"Rezerved ");
+ proto_tree_add_text (tree,tvb,20,4,"Cable range = %u-%u",tvb_get_ntohs(tvb,20),tvb_get_ntohs(tvb,22));
+
+ proto_item_set_text (ti,"%s : %u-%u",match_strval(TLV_AT_INT,eigrp_tlv_vals),tvb_get_ntohs(tvb,20),tvb_get_ntohs(tvb,22));
+
+}
+
+static void dissect_eigrp_at_ext (tvbuff_t *tvb, proto_tree *tree, proto_item *ti)
+{
+ proto_tree_add_text (tree,tvb,0,4,"Next Hop Address = %u.%u",tvb_get_ntohs(tvb,0),tvb_get_ntohs(tvb,2));
+ proto_tree_add_text (tree,tvb,4,4,"Originating router ID = %u",tvb_get_ntohl(tvb,4));
+ proto_tree_add_text (tree,tvb,8,4,"Originating A.S. = %u",tvb_get_ntohl(tvb,8));
+ proto_tree_add_text (tree,tvb,12,4,"Arbitrary tag = %u",tvb_get_ntohl(tvb,12));
+ proto_tree_add_text (tree,tvb,16,1,"External protocol ID = %u ",tvb_get_guint8(tvb,16));
+ proto_tree_add_text (tree,tvb,17,1,"Flags = 0x%0x",tvb_get_guint8(tvb,17));
+ proto_tree_add_text (tree,tvb,18,2,"External protocol metric = %u",tvb_get_ntohs(tvb,18));
+
+ proto_tree_add_text (tree,tvb,20,4,"Delay = %u",tvb_get_ntohl(tvb,20));
+ proto_tree_add_text (tree,tvb,24,4,"Bandwidth = %u",tvb_get_ntohl(tvb,24));
+ proto_tree_add_text (tree,tvb,28,3,"MTU = %u",tvb_get_ntoh24(tvb,28));
+ proto_tree_add_text (tree,tvb,31,1,"Hop Count = %u",tvb_get_guint8(tvb,31));
+ proto_tree_add_text (tree,tvb,32,1,"Reliability = %u",tvb_get_guint8(tvb,32));
+ proto_tree_add_text (tree,tvb,33,1,"Load = %u",tvb_get_guint8(tvb,33));
+ proto_tree_add_text (tree,tvb,34,2,"Rezerved ");
+ proto_tree_add_text (tree,tvb,36,4,"Cable range = %u-%u",tvb_get_ntohs(tvb,36),tvb_get_ntohs(tvb,38));
+
+ proto_item_set_text (ti,"%s : %u-%u",match_strval(TLV_AT_EXT,eigrp_tlv_vals),tvb_get_ntohs(tvb,36),tvb_get_ntohs(tvb,38));
+}
+
+
+
+
void
proto_register_eigrp(void)
- {
+{
+ static hf_register_info hf[] = {
+ { &hf_eigrp_opcode,
+ { "Opcode", "eigrp.opcode",
+ FT_UINT8, BASE_DEC, NULL, 0x0 ,
+ "Opcode number" },
+ },
+ { &hf_eigrp_as,
+ { "Autonomous System ", "eigrp.as",
+ FT_UINT16, BASE_DEC, NULL, 0x0 ,
+ "Autonomous System number" }
+ },
+ { &hf_eigrp_tlv,
+ { "Entry ", "eigrp.tlv",
+ FT_UINT16, BASE_DEC, NULL, 0x0 ,
+ "Type/Length/Value" }
+ },
+ };
+
static gint *ett[] = {
&ett_eigrp,
+ &ett_tlv,
};
proto_eigrp = proto_register_protocol("Enhanced Interior Gateway Routing Protocol", "eigrp");
+ proto_register_field_array(proto_eigrp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_eigrp(void)
{
- old_dissector_add("ip.proto", IP_PROTO_EIGRP, dissect_eigrp);
- old_dissector_add("ddp.type", DDP_EIGRP, dissect_eigrp);
- old_dissector_add("ipx.socket", IPX_SOCKET_EIGRP, dissect_eigrp);
+ dissector_add("ip.proto", IP_PROTO_EIGRP, dissect_eigrp);
+ dissector_add("ddp.type", DDP_EIGRP, dissect_eigrp);
+ dissector_add("ipx.socket", IPX_SOCKET_EIGRP, dissect_eigrp);
}
git.samba.org / obnox / wireshark / wip.git / blobdiff