/* packet-atalk.c
* Routines for Appletalk packet disassembly (DDP, currently).
*
- * $Id: packet-atalk.c,v 1.21 1999/11/04 07:06:50 guy Exp $
+ * $Id: packet-atalk.c,v 1.54 2001/04/27 01:27:36 guy Exp $
*
* Simon Wilkinson <sxw@dcs.ed.ac.uk>
*
#endif
#include <glib.h>
-#include "globals.h"
#include "packet.h"
-#include "packet-atalk.h"
+#include "etypes.h"
+#include "ppptypes.h"
+#include "aftypes.h"
+#include "atalk-utils.h"
static int proto_ddp = -1;
static int hf_ddp_hopcount = -1;
static int hf_ddp_src_socket = -1;
static int hf_ddp_type = -1;
-/* P = Padding, H = Hops, L = Len */
-#if BYTE_ORDER == BIG_ENDIAN
- /* PPHHHHLL LLLLLLLL */
-# define ddp_hops(x) ( ( x >> 10) & 0x3C )
-# define ddp_len(x) ( x & 0x03ff )
-#else
- /* LLLLLLLL PPHHHHLL*/
-# define ddp_hops(x) ( x & 0x3C )
-# define ddp_len(x) ( ntohs(x) & 0x03ff )
-#endif
+static int proto_nbp = -1;
+static int hf_nbp_op = -1;
+static int hf_nbp_info = -1;
+static int hf_nbp_count = -1;
+static int hf_nbp_tid = -1;
+
+static int hf_nbp_node_net = -1;
+static int hf_nbp_node_port = -1;
+static int hf_nbp_node_node = -1;
+static int hf_nbp_node_enum = -1;
+static int hf_nbp_node_object = -1;
+static int hf_nbp_node_type = -1;
+static int hf_nbp_node_zone = -1;
+
+static int proto_rtmp = -1;
+static int hf_rtmp_net = -1;
+static int hf_rtmp_node_len = -1;
+static int hf_rtmp_node = -1;
+static int hf_rtmp_tuple_net = -1;
+static int hf_rtmp_tuple_range_start = -1;
+static int hf_rtmp_tuple_range_end = -1;
+static int hf_rtmp_tuple_dist = -1;
+static int hf_rtmp_function = -1;
+
+static gint ett_nbp = -1;
+static gint ett_nbp_info = -1;
+static gint ett_nbp_node = -1;
+static gint ett_rtmp = -1;
+static gint ett_rtmp_tuple = -1;
+static gint ett_ddp = -1;
+static gint ett_pstring = -1;
+
+static dissector_table_t ddp_dissector_table;
+
+/*
+ * P = Padding, H = Hops, L = Len
+ *
+ * PPHHHHLL LLLLLLLL
+ *
+ * Assumes the argument is in host byte order.
+ */
+#define ddp_hops(x) ( ( x >> 10) & 0x3C )
+#define ddp_len(x) ( x & 0x03ff )
typedef struct _e_ddp {
guint16 hops_len; /* combines pad, hops, and len */
guint16 sum,dnet,snet;
guint8 type;
} e_ddp;
-#define DDP_RTMPDATA 0x01
-#define DDP_NBP 0x02
-#define DDP_ATP 0x03
-#define DDP_AEP 0x04
-#define DDP_RTMPREQ 0x05
-#define DDP_ZIP 0x06
-#define DDP_ADSP 0x07
#define DDP_HEADER_SIZE 13
-gchar *
-atalk_addr_to_str(const struct atalk_ddp_addr *addrp)
-{
- static gchar str[3][14];
- static gchar *cur;
-
- if (cur == &str[0][0]) {
- cur = &str[1][0];
- } else if (cur == &str[1][0]) {
- cur = &str[2][0];
- } else {
- cur = &str[0][0];
- }
-
- sprintf(cur, "%u.%u:%u", addrp->net, addrp->node, addrp->port);
- return cur;
-}
static const value_string op_vals[] = {
{DDP_RTMPDATA, "AppleTalk Routing Table response or data" },
{DDP_RTMPREQ, "AppleTalk Routing Table request"},
{DDP_ZIP, "AppleTalk Zone Information Protocol packet"},
{DDP_ADSP, "AppleTalk Data Stream Protocol"},
+ {DDP_EIGRP, "Cisco EIGRP for AppleTalk"},
{0, NULL}
};
-void
-dissect_ddp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
+static const value_string rtmp_function_vals[] = {
+ {1, "Request"},
+ {2, "Route Data Request (split horizon processed)"},
+ {3, "Route Data Request (no split horizon processing)"},
+ {0, NULL}
+};
+
+#define NBP_LOOKUP 2
+#define NBP_FORWARD 4
+#define NBP_REPLY 3
+
+static const value_string nbp_op_vals[] = {
+ {NBP_LOOKUP, "lookup"},
+ {NBP_FORWARD, "forward request"},
+ {NBP_REPLY, "reply"},
+ {0, NULL}
+};
+
+/*
+ * XXX - do this with an FT_UINT_STRING?
+ * Unfortunately, you can't extract from an FT_UINT_STRING the string,
+ * which we'd want to do in order to put it into the "Data:" portion.
+ */
+int dissect_pascal_string(tvbuff_t *tvb, int offset, proto_tree *tree,
+ int hf_index)
+{
+ int len;
+
+ len = tvb_get_guint8(tvb, offset);
+ offset++;
+
+ if ( tree )
+ {
+ char *tmp;
+ proto_tree *item;
+ proto_tree *subtree;
+
+ /*
+ * XXX - if we could do this inside the protocol tree
+ * code, we could perhaps avoid allocating and freeing
+ * this string buffer.
+ */
+ tmp = g_malloc( len+1 );
+ tvb_memcpy(tvb, tmp, offset, len);
+ tmp[len] = 0;
+ item = proto_tree_add_string(tree, hf_index, tvb, offset-1, len+1, tmp);
+
+ subtree = proto_item_add_subtree(item, ett_pstring);
+ proto_tree_add_text(subtree, tvb, offset-1, 1, "Length: %d", len);
+ proto_tree_add_text(subtree, tvb, offset, len, "Data: %s", tmp);
+
+ g_free(tmp);
+ }
+ offset += len;
+
+ return offset;
+}
+
+static void
+dissect_rtmp_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
+ proto_tree *rtmp_tree;
+ proto_item *ti;
+ guint8 function;
+
+ if (check_col(pinfo->fd, COL_PROTOCOL))
+ col_set_str(pinfo->fd, COL_PROTOCOL, "RTMP");
+ if (check_col(pinfo->fd, COL_INFO))
+ col_clear(pinfo->fd, COL_INFO);
+
+ function = tvb_get_guint8(tvb, 0);
+
+ if (check_col(pinfo->fd, COL_INFO))
+ col_add_fstr(pinfo->fd, COL_INFO, "%s",
+ val_to_str(function, rtmp_function_vals, "Unknown function (%02)"));
+
+ if (tree) {
+ ti = proto_tree_add_item(tree, proto_rtmp, tvb, 0, 1, FALSE);
+ rtmp_tree = proto_item_add_subtree(ti, ett_rtmp);
+
+ proto_tree_add_uint(rtmp_tree, hf_rtmp_function, tvb, 0, 1, function);
+ }
+}
+
+static void
+dissect_rtmp_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
+ proto_tree *rtmp_tree;
+ proto_item *ti;
+ int offset = 0;
+ guint16 net;
+ guint8 nodelen,nodelen_bits;
+ guint16 node; /* might be more than 8 bits */
+ int i;
+
+ if (check_col(pinfo->fd, COL_PROTOCOL))
+ col_set_str(pinfo->fd, COL_PROTOCOL, "RTMP");
+ if (check_col(pinfo->fd, COL_INFO))
+ col_clear(pinfo->fd, COL_INFO);
+
+ net = tvb_get_ntohs(tvb, offset);
+ nodelen_bits = tvb_get_guint8(tvb, offset+2);
+ if ( nodelen_bits <= 8 ) {
+ node = tvb_get_guint8(tvb, offset)+1;
+ nodelen = 1;
+ } else {
+ node = tvb_get_ntohs(tvb, offset);
+ nodelen = 2;
+ }
+
+ if (check_col(pinfo->fd, COL_INFO))
+ col_add_fstr(pinfo->fd, COL_INFO, "Net: %u Node Len: %u Node: %u",
+ net, nodelen_bits, node);
+
+ if (tree) {
+ ti = proto_tree_add_item(tree, proto_rtmp, tvb, offset,
+ tvb_length_remaining(tvb, offset), FALSE);
+ rtmp_tree = proto_item_add_subtree(ti, ett_rtmp);
+
+ proto_tree_add_uint(rtmp_tree, hf_rtmp_net, tvb, offset, 2, net);
+ proto_tree_add_uint(rtmp_tree, hf_rtmp_node_len, tvb, offset+2, 1,
+ nodelen_bits);
+ proto_tree_add_uint(rtmp_tree, hf_rtmp_node, tvb, offset+3, nodelen,
+ node);
+ offset += 3 + nodelen;
+
+ i = 1;
+ while (tvb_offset_exists(tvb, offset)) {
+ proto_tree *tuple_item, *tuple_tree;
+ guint16 tuple_net;
+ guint8 tuple_dist;
+ guint16 tuple_range_end;
+
+ tuple_net = tvb_get_ntohs(tvb, offset);
+ tuple_dist = tvb_get_guint8(tvb, offset+2);
+
+ if (tuple_dist & 0x80) {
+ tuple_range_end = tvb_get_ntohs(tvb, offset+3);
+ tuple_item = proto_tree_add_text(rtmp_tree, tvb, offset, 6,
+ "Tuple %d: Range Start: %u Dist: %u Range End: %u",
+ i, tuple_net, tuple_dist&0x7F, tuple_range_end);
+ } else {
+ tuple_item = proto_tree_add_text(rtmp_tree, tvb, offset, 3,
+ "Tuple %d: Net: %u Dist: %u",
+ i, tuple_net, tuple_dist);
+ }
+ tuple_tree = proto_item_add_subtree(tuple_item, ett_rtmp_tuple);
+
+ if (tuple_dist & 0x80) {
+ proto_tree_add_uint(tuple_tree, hf_rtmp_tuple_range_start, tvb, offset, 2,
+ tuple_net);
+ } else {
+ proto_tree_add_uint(tuple_tree, hf_rtmp_tuple_net, tvb, offset, 2,
+ tuple_net);
+ }
+ proto_tree_add_uint(tuple_tree, hf_rtmp_tuple_dist, tvb, offset+2, 1,
+ tuple_dist & 0x7F);
+
+ if (tuple_dist & 0x80) {
+ /*
+ * Extended network tuple.
+ */
+ proto_tree_add_item(tuple_tree, hf_rtmp_tuple_range_end, tvb, offset+3, 2,
+ FALSE);
+ offset += 6;
+ } else
+ offset += 3;
+
+ i++;
+ }
+ }
+}
+
+static void
+dissect_nbp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
+ proto_tree *nbp_tree;
+ proto_tree *nbp_info_tree;
+ proto_item *ti, *info_item;
+ int offset = 0;
+ guint8 info;
+ guint op, count;
+ unsigned int i;
+
+ if (check_col(pinfo->fd, COL_PROTOCOL))
+ col_set_str(pinfo->fd, COL_PROTOCOL, "NBP");
+ if (check_col(pinfo->fd, COL_INFO))
+ col_clear(pinfo->fd, COL_INFO);
+
+ info = tvb_get_guint8(tvb, offset);
+ op = info >> 4;
+ count = info & 0x0F;
+
+ if (check_col(pinfo->fd, COL_INFO))
+ col_add_fstr(pinfo->fd, COL_INFO, "Op: %s Count: %u",
+ val_to_str(op, nbp_op_vals, "Unknown (0x%01x)"), count);
+
+ if (tree) {
+ ti = proto_tree_add_item(tree, proto_nbp, tvb, offset,
+ tvb_length_remaining(tvb, offset), FALSE);
+ nbp_tree = proto_item_add_subtree(ti, ett_nbp);
+
+ info_item = proto_tree_add_uint_format(nbp_tree, hf_nbp_info, tvb, offset, 1,
+ info,
+ "Info: 0x%01X Operation: %s Count: %u", info,
+ val_to_str(op, nbp_op_vals, "Unknown (0x%01X)"),
+ count);
+ nbp_info_tree = proto_item_add_subtree(info_item, ett_nbp_info);
+ proto_tree_add_uint(nbp_info_tree, hf_nbp_op, tvb, offset, 1, info);
+ proto_tree_add_uint(nbp_info_tree, hf_nbp_count, tvb, offset, 1, info);
+ proto_tree_add_item(nbp_tree, hf_nbp_tid, tvb, offset+1, 1, FALSE);
+ offset += 2;
+
+ for (i=0; i<count; i++) {
+ proto_tree *node_item,*node_tree;
+ int soffset = offset;
+
+ node_item = proto_tree_add_text(nbp_tree, tvb, offset, 4,
+ "Node %d", i+1);
+ node_tree = proto_item_add_subtree(node_item, ett_nbp_node);
+
+ proto_tree_add_item(node_tree, hf_nbp_node_net, tvb, offset, 2, FALSE);
+ offset += 2;
+ proto_tree_add_item(node_tree, hf_nbp_node_node, tvb, offset, 1, FALSE);
+ offset++;
+ proto_tree_add_item(node_tree, hf_nbp_node_port, tvb, offset, 1, FALSE);
+ offset++;
+ proto_tree_add_item(node_tree, hf_nbp_node_enum, tvb, offset, 1, FALSE);
+ offset++;
+
+ offset = dissect_pascal_string(tvb, offset, node_tree, hf_nbp_node_object);
+ offset = dissect_pascal_string(tvb, offset, node_tree, hf_nbp_node_type);
+ offset = dissect_pascal_string(tvb, offset, node_tree, hf_nbp_node_zone);
+
+ proto_item_set_len(node_item, offset-soffset);
+ }
+ }
+
+ return;
+}
+
+static void
+dissect_ddp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
e_ddp ddp;
proto_tree *ddp_tree;
proto_item *ti;
static struct atalk_ddp_addr src, dst;
+ tvbuff_t *new_tvb;
- if (!BYTES_ARE_IN_FRAME(offset, DDP_HEADER_SIZE)) {
- dissect_data(pd, offset, fd, tree);
- return;
- }
+ if (check_col(pinfo->fd, COL_PROTOCOL))
+ col_set_str(pinfo->fd, COL_PROTOCOL, "DDP");
+ if (check_col(pinfo->fd, COL_INFO))
+ col_clear(pinfo->fd, COL_INFO);
- memcpy(&ddp, &pd[offset], sizeof(e_ddp));
+ tvb_memcpy(tvb, (guint8 *)&ddp, 0, sizeof(e_ddp));
ddp.dnet=ntohs(ddp.dnet);
ddp.snet=ntohs(ddp.snet);
ddp.sum=ntohs(ddp.sum);
+ ddp.hops_len=ntohs(ddp.hops_len);
src.net = ddp.snet;
src.node = ddp.snode;
dst.net = ddp.dnet;
dst.node = ddp.dnode;
dst.port = ddp.dport;
- SET_ADDRESS(&pi.net_src, AT_ATALK, sizeof src, (guint8 *)&src);
- SET_ADDRESS(&pi.src, AT_ATALK, sizeof src, (guint8 *)&src);
- SET_ADDRESS(&pi.net_dst, AT_ATALK, sizeof dst, (guint8 *)&dst);
- SET_ADDRESS(&pi.dst, AT_ATALK, sizeof dst, (guint8 *)&dst);
-
- if (check_col(fd, COL_PROTOCOL))
- col_add_str(fd, COL_PROTOCOL, "DDP");
- if (check_col(fd, COL_INFO))
- col_add_str(fd, COL_INFO,
+ SET_ADDRESS(&pinfo->net_src, AT_ATALK, sizeof src, (guint8 *)&src);
+ SET_ADDRESS(&pinfo->src, AT_ATALK, sizeof src, (guint8 *)&src);
+ SET_ADDRESS(&pinfo->net_dst, AT_ATALK, sizeof dst, (guint8 *)&dst);
+ SET_ADDRESS(&pinfo->dst, AT_ATALK, sizeof dst, (guint8 *)&dst);
+
+ if (check_col(pinfo->fd, COL_INFO))
+ col_add_str(pinfo->fd, COL_INFO,
val_to_str(ddp.type, op_vals, "Unknown DDP protocol (%02x)"));
if (tree) {
- ti = proto_tree_add_item(tree, proto_ddp, offset, DDP_HEADER_SIZE, NULL);
- ddp_tree = proto_item_add_subtree(ti, ETT_DDP);
- proto_tree_add_item(ddp_tree, hf_ddp_hopcount, offset, 1,
+ ti = proto_tree_add_item(tree, proto_ddp, tvb, 0, DDP_HEADER_SIZE,
+ FALSE);
+ ddp_tree = proto_item_add_subtree(ti, ett_ddp);
+ proto_tree_add_uint(ddp_tree, hf_ddp_hopcount, tvb, 0, 1,
ddp_hops(ddp.hops_len));
- proto_tree_add_item(ddp_tree, hf_ddp_len, offset, 2,
+ proto_tree_add_uint(ddp_tree, hf_ddp_len, tvb, 0, 2,
ddp_len(ddp.hops_len));
- proto_tree_add_item(ddp_tree, hf_ddp_checksum, offset + 2, 2, ddp.sum);
- proto_tree_add_item(ddp_tree, hf_ddp_dst_net, offset + 4, 2, ddp.dnet);
- proto_tree_add_item(ddp_tree, hf_ddp_src_net, offset + 6, 2, ddp.snet);
- proto_tree_add_item(ddp_tree, hf_ddp_dst_node, offset + 8, 1, ddp.dnode);
- proto_tree_add_item(ddp_tree, hf_ddp_src_node, offset + 9, 1, ddp.snode);
- proto_tree_add_item(ddp_tree, hf_ddp_dst_socket, offset + 10, 1, ddp.dport);
- proto_tree_add_item(ddp_tree, hf_ddp_src_socket, offset + 11, 1, ddp.sport);
- proto_tree_add_item(ddp_tree, hf_ddp_type, offset + 12, 1, ddp.type);
+ proto_tree_add_uint(ddp_tree, hf_ddp_checksum, tvb, 2, 2,
+ ddp.sum);
+ proto_tree_add_uint(ddp_tree, hf_ddp_dst_net, tvb, 4, 2,
+ ddp.dnet);
+ proto_tree_add_uint(ddp_tree, hf_ddp_src_net, tvb, 6, 2,
+ ddp.snet);
+ proto_tree_add_uint(ddp_tree, hf_ddp_dst_node, tvb, 8, 1,
+ ddp.dnode);
+ proto_tree_add_uint(ddp_tree, hf_ddp_src_node, tvb, 9, 1,
+ ddp.snode);
+ proto_tree_add_uint(ddp_tree, hf_ddp_dst_socket, tvb, 10, 1,
+ ddp.dport);
+ proto_tree_add_uint(ddp_tree, hf_ddp_src_socket, tvb, 11, 1,
+ ddp.sport);
+ proto_tree_add_uint(ddp_tree, hf_ddp_type, tvb, 12, 1,
+ ddp.type);
}
- offset += DDP_HEADER_SIZE;
+ new_tvb = tvb_new_subset(tvb, DDP_HEADER_SIZE, -1, -1);
- dissect_data(pd, offset, fd, tree);
+ if (!dissector_try_port(ddp_dissector_table, ddp.type, new_tvb, pinfo, tree))
+ dissect_data(new_tvb, 0, pinfo, tree);
}
void
proto_register_atalk(void)
{
- static hf_register_info hf[] = {
+ static hf_register_info hf_ddp[] = {
{ &hf_ddp_hopcount,
{ "Hop count", "ddp.hopcount", FT_UINT8, BASE_DEC, NULL, 0x0,
"" }},
"" }},
};
- proto_ddp = proto_register_protocol("Datagram Delivery Protocol", "ddp");
- proto_register_field_array(proto_ddp, hf, array_length(hf));
+ static hf_register_info hf_nbp[] = {
+ { &hf_nbp_op,
+ { "Operation", "nbp.op", FT_UINT8, BASE_DEC,
+ VALS(nbp_op_vals), 0xF0, "Operation" }},
+ { &hf_nbp_info,
+ { "Info", "nbp.info", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "Info" }},
+ { &hf_nbp_count,
+ { "Count", "nbp.count", FT_UINT8, BASE_DEC,
+ NULL, 0x0F, "Count" }},
+ { &hf_nbp_node_net,
+ { "Network", "nbp.net", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "Network" }},
+ { &hf_nbp_node_node,
+ { "Node", "nbp.node", FT_UINT8, BASE_DEC,
+ NULL, 0x0, "Node" }},
+ { &hf_nbp_node_port,
+ { "Port", "nbp.port", FT_UINT8, BASE_DEC,
+ NULL, 0x0, "Port" }},
+ { &hf_nbp_node_enum,
+ { "Enumerator", "nbp.enum", FT_UINT8, BASE_DEC,
+ NULL, 0x0, "Enumerator" }},
+ { &hf_nbp_node_object,
+ { "Object", "nbp.object", FT_STRING, BASE_DEC,
+ NULL, 0x0, "Object" }},
+ { &hf_nbp_node_type,
+ { "Type", "nbp.type", FT_STRING, BASE_DEC,
+ NULL, 0x0, "Type" }},
+ { &hf_nbp_node_zone,
+ { "Zone", "nbp.zone", FT_STRING, BASE_DEC,
+ NULL, 0x0, "Zone" }},
+ { &hf_nbp_tid,
+ { "Transaction ID", "nbp.tid", FT_UINT8, BASE_DEC,
+ NULL, 0x0, "Transaction ID" }}
+ };
+
+ static hf_register_info hf_rtmp[] = {
+ { &hf_rtmp_net,
+ { "Net", "rtmp.net", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "Net" }},
+ { &hf_rtmp_node,
+ { "Node", "nbp.nodeid", FT_UINT8, BASE_DEC,
+ NULL, 0x0, "Node" }},
+ { &hf_rtmp_node_len,
+ { "Node Length", "nbp.nodeid.length", FT_UINT8, BASE_DEC,
+ NULL, 0x0, "Node Length" }},
+ { &hf_rtmp_tuple_net,
+ { "Net", "rtmp.tuple.net", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "Net" }},
+ { &hf_rtmp_tuple_range_start,
+ { "Range Start", "rtmp.tuple.range_start", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "Range Start" }},
+ { &hf_rtmp_tuple_range_end,
+ { "Range End", "rtmp.tuple.range_end", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "Range End" }},
+ { &hf_rtmp_tuple_dist,
+ { "Distance", "rtmp.tuple.dist", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "Distance" }},
+ { &hf_rtmp_function,
+ { "Function", "rtmp.function", FT_UINT8, BASE_DEC,
+ VALS(rtmp_function_vals), 0x0, "Request Function" }}
+ };
+
+
+ static gint *ett[] = {
+ &ett_ddp,
+ &ett_nbp,
+ &ett_nbp_info,
+ &ett_nbp_node,
+ &ett_pstring,
+ &ett_rtmp,
+ &ett_rtmp_tuple
+ };
+
+ proto_ddp = proto_register_protocol("Datagram Delivery Protocol", "DDP", "ddp");
+ proto_register_field_array(proto_ddp, hf_ddp, array_length(hf_ddp));
+
+ proto_nbp = proto_register_protocol("Name Binding Protocol", "NBP", "nbp");
+ proto_register_field_array(proto_nbp, hf_nbp, array_length(hf_nbp));
+
+ proto_rtmp = proto_register_protocol("Routing Table Maintenance Protocol",
+ "RTMP", "rtmp");
+ proto_register_field_array(proto_rtmp, hf_rtmp, array_length(hf_rtmp));
+
+ proto_register_subtree_array(ett, array_length(ett));
+
+ /* subdissector code */
+ ddp_dissector_table = register_dissector_table("ddp.type");
+}
+
+void
+proto_reg_handoff_atalk(void)
+{
+ dissector_add("ethertype", ETHERTYPE_ATALK, dissect_ddp, proto_ddp);
+ dissector_add("chdlctype", ETHERTYPE_ATALK, dissect_ddp, proto_ddp);
+ dissector_add("ppp.protocol", PPP_AT, dissect_ddp, proto_ddp);
+ dissector_add("null.type", BSD_AF_APPLETALK, dissect_ddp, proto_ddp);
+ dissector_add("ddp.type", DDP_NBP, dissect_nbp, proto_nbp);
+ dissector_add("ddp.type", DDP_RTMPREQ, dissect_rtmp_request, proto_rtmp);
+ dissector_add("ddp.type", DDP_RTMPDATA, dissect_rtmp_data, proto_rtmp);
}