2 * Routines for Banyan VINES protocol packet disassembly
4 * $Id: packet-vines.c,v 1.22 2001/01/06 08:44:03 guy Exp $
6 * Don Lafontaine <lafont02@cn.ca>
8 * Ethereal - Network traffic analyzer
9 * By Gerald Combs <gerald@zing.org>
10 * Copyright 1998 Gerald Combs
11 * Joerg Mayer <jmayer@telemation.de>
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
33 #ifdef HAVE_SYS_TYPES_H
34 #include <sys/types.h>
37 #ifdef HAVE_NETINET_IN_H
38 #include <netinet/in.h>
46 #include "packet-vines.h"
47 #include "packet-ip.h"
49 #define UDP_PORT_VINES 573
51 static int proto_vines = -1;
52 static int hf_vines_protocol = -1;
54 static gint ett_vines = -1;
56 static int proto_vines_frp = -1;
58 static gint ett_vines_frp = -1;
60 static int proto_vines_spp = -1;
62 static gint ett_vines_spp = -1;
64 static void dissect_vines_frp(tvbuff_t *, packet_info *, proto_tree *);
66 static void dissect_vines_arp(tvbuff_t *, packet_info *, proto_tree *);
67 static void dissect_vines_icp(tvbuff_t *, packet_info *, proto_tree *);
68 static void dissect_vines_ipc(tvbuff_t *, packet_info *, proto_tree *);
69 static void dissect_vines_rtp(tvbuff_t *, packet_info *, proto_tree *);
71 static void dissect_vines_spp(tvbuff_t *, packet_info *, proto_tree *);
72 static void dissect_vines(tvbuff_t *, packet_info *, proto_tree *);
75 capture_vines(const u_char *pd, int offset, packet_counts *ld)
80 /* AFAIK Vines FRP (Fragmentation Protocol) is used on all media except
81 * Ethernet and TR (and probably FDDI) - Fragmentation on these media types
83 * FIXME: Do we need to use this header with PPP too?
86 dissect_vines_frp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
88 guint8 vines_frp_ctrl;
89 proto_tree *vines_frp_tree;
91 gchar frp_flags_str[32];
94 CHECK_DISPLAY_AS_DATA(proto_vines_frp, tvb, pinfo, tree);
96 pinfo->current_proto = "Vines FRP";
98 if (check_col(pinfo->fd, COL_PROTOCOL))
99 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines FRP");
100 if (check_col(pinfo->fd, COL_INFO))
101 col_clear(pinfo->fd, COL_INFO);
104 ti = proto_tree_add_item(tree, proto_vines_frp, tvb, 0, 2,
106 vines_frp_tree = proto_item_add_subtree(ti, ett_vines_frp);
108 vines_frp_ctrl = tvb_get_guint8(tvb, 0);
111 * 1: first fragment of vines packet
112 * 2: last fragment of vines packet
115 switch (vines_frp_ctrl) {
118 strcpy(frp_flags_str, "middle");
122 strcpy(frp_flags_str, "first");
126 strcpy(frp_flags_str, "last");
130 strcpy(frp_flags_str, "only");
134 strcpy(frp_flags_str, "please report: unknown");
138 proto_tree_add_text(vines_frp_tree, tvb, 0, 1,
139 "Control Flags: 0x%02x = %s fragment",
140 vines_frp_ctrl, frp_flags_str);
142 proto_tree_add_text(vines_frp_tree, tvb, 1, 1,
143 "Sequence Number: 0x%02x",
144 tvb_get_guint8(tvb, 1));
147 /* Decode the "real" Vines now */
148 next_tvb = tvb_new_subset(tvb, 2, -1, -1);
149 dissect_vines(tvb, pinfo, tree);
153 proto_register_vines_frp(void)
155 static gint *ett[] = {
159 proto_vines_frp = proto_register_protocol(
160 "Banyan Vines Fragmentation Protocol", "Vines FRP", "vines_frp");
161 proto_register_subtree_array(ett, array_length(ett));
165 proto_reg_handoff_vines_frp(void)
167 dissector_add("ip.proto", IP_PROTO_VINES, dissect_vines_frp);
169 /* XXX: AFAIK, src and dst port must be the same; should
170 the dissector check for that? */
171 dissector_add("udp.port", UDP_PORT_VINES, dissect_vines_frp);
175 vines_addr_to_str(const guint8 *addrp)
177 static gchar str[3][214];
180 if (cur == &str[0][0]) {
182 } else if (cur == &str[1][0]) {
188 sprintf(cur, "%08x.%04x", pntohl(&addrp[0]), pntohs(&addrp[4]));
193 dissect_vines(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
197 proto_tree *vip_tree;
199 /* gchar tos_str[32]; */
200 guint8 *dst_addr, *src_addr;
201 int is_broadcast = 0;
205 CHECK_DISPLAY_AS_DATA(proto_vines, tvb, pinfo, tree);
207 pinfo->current_proto = "Vines";
209 if (check_col(pinfo->fd, COL_PROTOCOL))
210 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines");
211 if (check_col(pinfo->fd, COL_INFO))
212 col_clear(pinfo->fd, COL_INFO);
214 /* To do: check for runts, errs, etc. */
216 /* Avoids alignment problems on many architectures. */
217 tvb_memcpy(tvb, (guint8 *)&viph, offset, sizeof(e_vip));
219 viph.vip_chksum = ntohs(viph.vip_chksum);
220 viph.vip_pktlen = ntohs(viph.vip_pktlen);
221 viph.vip_dnet = ntohl(viph.vip_dnet);
222 viph.vip_dsub = ntohs(viph.vip_dsub);
223 viph.vip_snet = ntohl(viph.vip_snet);
224 viph.vip_ssub = ntohs(viph.vip_ssub);
226 switch (viph.vip_proto) {
228 if (check_col(pinfo->fd, COL_PROTOCOL))
229 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines IPC");
230 if (check_col(pinfo->fd, COL_INFO))
231 col_add_fstr(pinfo->fd, COL_INFO, "IPC (%02x)", viph.vip_proto);
234 if (check_col(pinfo->fd, COL_PROTOCOL))
235 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines SPP");
236 if (check_col(pinfo->fd, COL_INFO))
237 col_add_fstr(pinfo->fd, COL_INFO, "SPP (%02x)", viph.vip_proto);
240 if (check_col(pinfo->fd, COL_PROTOCOL))
241 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines ARP");
242 if (check_col(pinfo->fd, COL_INFO))
243 col_add_fstr(pinfo->fd, COL_INFO, "ARP (%02x)", viph.vip_proto);
246 if (check_col(pinfo->fd, COL_PROTOCOL))
247 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines RTP");
248 if (check_col(pinfo->fd, COL_INFO))
249 col_add_fstr(pinfo->fd, COL_INFO, "RTP (%02x)", viph.vip_proto);
252 if (check_col(pinfo->fd, COL_PROTOCOL))
253 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines ICP");
254 if (check_col(pinfo->fd, COL_INFO))
255 col_add_fstr(pinfo->fd, COL_INFO, "ICP (%02x)", viph.vip_proto);
258 if (check_col(pinfo->fd, COL_PROTOCOL))
259 col_set_str(pinfo->fd, COL_PROTOCOL, "Vines IP");
260 if (check_col(pinfo->fd, COL_INFO))
261 col_add_fstr(pinfo->fd, COL_INFO, "Unknown VIP protocol (%02x)",
265 src_addr = tvb_get_ptr(tvb, offset+12, VINES_ADDR_LEN);
266 SET_ADDRESS(&pinfo->net_src, AT_VINES, VINES_ADDR_LEN, src_addr);
267 SET_ADDRESS(&pinfo->src, AT_VINES, VINES_ADDR_LEN, src_addr);
268 dst_addr = tvb_get_ptr(tvb, offset+6, VINES_ADDR_LEN);
269 SET_ADDRESS(&pinfo->net_dst, AT_VINES, VINES_ADDR_LEN,dst_addr);
270 SET_ADDRESS(&pinfo->dst, AT_VINES, VINES_ADDR_LEN, dst_addr);
272 /* helpers to decode flags */
273 /* FIXME: Not used yet */
274 if ((viph.vip_dnet == 0xffffffff) && (viph.vip_dsub == 0xffff)) {
277 hops = viph.vip_tctl & 0xf;
280 viph.ip_tos = IPTOS_TOS(viph.ip_tos);
281 switch (viph.ip_tos) {
283 strcpy(tos_str, "None");
286 strcpy(tos_str, "Minimize delay");
288 case IPTOS_THROUGHPUT:
289 strcpy(tos_str, "Maximize throughput");
291 case IPTOS_RELIABILITY:
292 strcpy(tos_str, "Maximize reliability");
295 strcpy(tos_str, "Minimize cost");
298 strcpy(tos_str, "Unknon. Malformed?");
304 ti = proto_tree_add_protocol_format(tree, proto_vines, tvb,
305 offset, (viph.vip_pktlen),
307 vip_tree = proto_item_add_subtree(ti, ett_vines);
308 proto_tree_add_text(vip_tree, tvb, offset, 2,
309 "Packet checksum: 0x%04x",
311 proto_tree_add_text(vip_tree, tvb, offset + 2, 2,
312 "Packet length: 0x%04x (%d)",
313 viph.vip_pktlen, viph.vip_pktlen);
314 proto_tree_add_text(vip_tree, tvb, offset + 4, 1,
315 "Transport control: 0x%02x",
317 proto_tree_add_uint(vip_tree, hf_vines_protocol, tvb,
320 proto_tree_add_text(vip_tree, tvb, offset + 6,
323 vines_addr_to_str(dst_addr));
324 proto_tree_add_text(vip_tree, tvb, offset + 12,
327 vines_addr_to_str(src_addr));
332 switch (viph.vip_proto) {
334 next_tvb = tvb_new_subset(tvb, offset, -1, -1);
335 dissect_vines_spp(next_tvb, pinfo, tree);
338 dissect_data(tvb, offset, pinfo, tree);
344 proto_register_vines(void)
346 static gint *ett[] = {
350 static hf_register_info hf[] = {
351 { &hf_vines_protocol,
352 { "Protocol", "vines.protocol",
353 FT_UINT8, BASE_HEX, NULL, 0x0,
357 proto_vines = proto_register_protocol("Banyan Vines", "Vines", "vines");
358 proto_register_field_array(proto_vines, hf, array_length(hf));
359 proto_register_subtree_array(ett, array_length(ett));
363 proto_reg_handoff_vines(void)
365 dissector_add("ethertype", ETHERTYPE_VINES, dissect_vines);
366 dissector_add("ppp.protocol", PPP_VINES, dissect_vines);
370 dissect_vines_spp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
374 proto_tree *vspp_tree;
377 CHECK_DISPLAY_AS_DATA(proto_vines_spp, tvb, pinfo, tree);
379 pinfo->current_proto = "Vines SPP";
381 if (check_col(pinfo->fd, COL_PROTOCOL))
382 col_set_str(pinfo->fd, COL_PROTOCOL, "VSPP");
383 if (check_col(pinfo->fd, COL_INFO))
384 col_clear(pinfo->fd, COL_INFO);
386 /* To do: check for runts, errs, etc. */
388 /* Avoids alignment problems on many architectures. */
389 tvb_memcpy(tvb, (guint8 *)&viph, offset, sizeof(e_vspp));
391 viph.vspp_sport = ntohs(viph.vspp_sport);
392 viph.vspp_dport = ntohs(viph.vspp_dport);
393 viph.vspp_lclid = ntohs(viph.vspp_lclid);
394 viph.vspp_rmtid = ntohs(viph.vspp_rmtid);
396 switch (viph.vspp_pkttype) {
397 case VSPP_PKTTYPE_DATA:
398 if (check_col(pinfo->fd, COL_PROTOCOL))
399 col_set_str(pinfo->fd, COL_PROTOCOL, "VSPP Data");
401 case VSPP_PKTTYPE_DISC:
402 if (check_col(pinfo->fd, COL_PROTOCOL))
403 col_set_str(pinfo->fd, COL_PROTOCOL, "VSPP Disconnect");
405 case VSPP_PKTTYPE_PROBE:
406 if (check_col(pinfo->fd, COL_PROTOCOL))
407 col_set_str(pinfo->fd, COL_PROTOCOL, "VSPP Probe");
409 case VSPP_PKTTYPE_ACK:
410 if (check_col(pinfo->fd, COL_PROTOCOL))
411 col_set_str(pinfo->fd, COL_PROTOCOL, "VSPP Ack");
414 if (check_col(pinfo->fd, COL_PROTOCOL))
415 col_set_str(pinfo->fd, COL_PROTOCOL, "VSPP Unknown");
418 if (check_col(pinfo->fd, COL_INFO))
419 col_add_fstr(pinfo->fd, COL_INFO,
420 "NS=%04x NR=%04x Window=%04x RID=%04x LID=%04x D=%04x S=%04x",
421 viph.vspp_seqno, viph.vspp_ack, viph.vspp_win,
422 viph.vspp_rmtid, viph.vspp_lclid, viph.vspp_dport,
426 iph.ip_tos = IPTOS_TOS(iph.ip_tos);
427 switch (iph.ip_tos) {
429 strcpy(tos_str, "None");
432 strcpy(tos_str, "Minimize delay");
434 case IPTOS_THROUGHPUT:
435 strcpy(tos_str, "Maximize throughput");
437 case IPTOS_RELIABILITY:
438 strcpy(tos_str, "Maximize reliability");
441 strcpy(tos_str, "Minimize cost");
444 strcpy(tos_str, "Unknon. Malformed?");
450 ti = proto_tree_add_item(tree, proto_vines_spp, tvb, offset,
451 sizeof(viph), FALSE);
452 vspp_tree = proto_item_add_subtree(ti, ett_vines_spp);
453 proto_tree_add_text(vspp_tree, tvb, offset, 2,
454 "Source port: 0x%04x", viph.vspp_sport);
455 proto_tree_add_text(vspp_tree, tvb, offset + 2, 2,
456 "Destination port: 0x%04x",
458 proto_tree_add_text(vspp_tree, tvb, offset + 4, 1,
459 "Packet type: 0x%02x", viph.vspp_pkttype);
460 proto_tree_add_text(vspp_tree, tvb, offset + 5, 1,
461 "Control: 0x%02x", viph.vspp_control);
462 proto_tree_add_text(vspp_tree, tvb, offset + 6, 2,
463 "Local Connection ID: 0x%04x",
465 proto_tree_add_text(vspp_tree, tvb, offset + 8, 2,
466 "Remote Connection ID: 0x%04x",
468 proto_tree_add_text(vspp_tree, tvb, offset + 10, 2,
469 "Sequence number: 0x%04x",
471 proto_tree_add_text(vspp_tree, tvb, offset + 12, 2,
472 "Ack number: 0x%04x", viph.vspp_ack);
473 proto_tree_add_text(vspp_tree, tvb, offset + 14, 2,
474 "Window: 0x%04x", viph.vspp_win);
476 offset += 16; /* sizeof SPP */
477 dissect_data(tvb, offset, pinfo, tree);
481 proto_register_vines_spp(void)
483 static gint *ett[] = {
487 proto_vines_spp = proto_register_protocol("Banyan Vines SPP",
488 "Vines SPP", "vines_spp");
489 proto_register_subtree_array(ett, array_length(ett));