2 * Routines for the COPS (Common Open Policy Service) protocol dissection
5 * Copyright 2000, Heikki Vatiainen <hessu@cs.tut.fi>
7 * $Id: packet-cops.c,v 1.6 2000/11/19 08:53:56 guy Exp $
9 * Ethereal - Network traffic analyzer
10 * By Gerald Combs <gerald@zing.org>
11 * Copyright 1998 Gerald Combs
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.
39 #include "packet-ipv6.h"
41 #define TCP_PORT_COPS 3288
43 #define COPS_OBJECT_HDR_SIZE 4
45 static const value_string cops_flags_vals[] = {
47 { 0x01, "Solicited Message Flag Bit" },
51 /* The different COPS message types */
53 COPS_NO_MSG, /* Not a COPS Message type */
55 COPS_MSG_REQ, /* Request (REQ) */
56 COPS_MSG_DEC, /* Decision (DEC) */
57 COPS_MSG_RPT, /* Report State (RPT) */
58 COPS_MSG_DRQ, /* Delete Request State (DRQ) */
59 COPS_MSG_SSQ, /* Synchronize State Req (SSQ) */
60 COPS_MSG_OPN, /* Client-Open (OPN) */
61 COPS_MSG_CAT, /* Client-Accept (CAT) */
62 COPS_MSG_CC, /* Client-Close (CC) */
63 COPS_MSG_KA, /* Keep-Alive (KA) */
64 COPS_MSG_SSC, /* Synchronize Complete (SSC) */
66 COPS_LAST_OP_CODE /* For error checking */
69 static const value_string cops_op_code_vals[] = {
70 { COPS_MSG_REQ, "Request (REQ)" },
71 { COPS_MSG_DEC, "Decision (DEC)" },
72 { COPS_MSG_RPT, "Report State (RPT)" },
73 { COPS_MSG_DRQ, "Delete Request State (DRQ)" },
74 { COPS_MSG_SSQ, "Synchronize State Req (SSQ)" },
75 { COPS_MSG_OPN, "Client-Open (OPN)" },
76 { COPS_MSG_CAT, "Client-Accept (CAT)" },
77 { COPS_MSG_CC, "Client-Close (CC)" },
78 { COPS_MSG_KA, "Keep-Alive (KA)" },
79 { COPS_MSG_SSC, "Synchronize Complete (SSC)" },
84 /* The different objects in COPS messages */
86 COPS_NO_OBJECT, /* Not a COPS Object type */
88 COPS_OBJ_HANDLE, /* Handle Object (Handle) */
89 COPS_OBJ_CONTEXT, /* Context Object (Context) */
90 COPS_OBJ_IN_INT, /* In-Interface Object (IN-Int) */
91 COPS_OBJ_OUT_INT, /* Out-Interface Object (OUT-Int) */
92 COPS_OBJ_REASON, /* Reason Object (Reason) */
93 COPS_OBJ_DECISION, /* Decision Object (Decision) */
94 COPS_OBJ_LPDPDECISION, /* LPDP Decision Object (LPDPDecision) */
95 COPS_OBJ_ERROR, /* Error Object (Error) */
96 COPS_OBJ_CLIENTSI, /* Client Specific Information Object (ClientSI) */
97 COPS_OBJ_KATIMER, /* Keep-Alive Timer Object (KATimer) */
98 COPS_OBJ_PEPID, /* PEP Identification Object (PEPID) */
99 COPS_OBJ_REPORT_TYPE, /* Report-Type Object (Report-Type) */
100 COPS_OBJ_PDPREDIRADDR, /* PDP Redirect Address Object (PDPRedirAddr) */
101 COPS_OBJ_LASTPDPADDR, /* Last PDP Address (LastPDPaddr) */
102 COPS_OBJ_ACCTTIMER, /* Accounting Timer Object (AcctTimer) */
103 COPS_OBJ_INTEGRITY, /* Message Integrity Object (Integrity) */
105 COPS_LAST_C_NUM /* For error checking */
108 static const value_string cops_c_num_vals[] = {
109 { COPS_OBJ_HANDLE, " Handle Object (Handle)" },
110 { COPS_OBJ_CONTEXT, " Context Object (Context)" },
111 { COPS_OBJ_IN_INT, " In-Interface Object (IN-Int)" },
112 { COPS_OBJ_OUT_INT, " Out-Interface Object (OUT-Int)" },
113 { COPS_OBJ_REASON, " Reason Object (Reason)" },
114 { COPS_OBJ_DECISION, " Decision Object (Decision)" },
115 { COPS_OBJ_LPDPDECISION, " LPDP Decision Object (LPDPDecision)" },
116 { COPS_OBJ_ERROR, " Error Object (Error)" },
117 { COPS_OBJ_CLIENTSI, " Client Specific Information Object (ClientSI)" },
118 { COPS_OBJ_KATIMER, " Keep-Alive Timer Object (KATimer)" },
119 { COPS_OBJ_PEPID, " PEP Identification Object (PEPID)" },
120 { COPS_OBJ_REPORT_TYPE, " Report-Type Object (Report-Type)" },
121 { COPS_OBJ_PDPREDIRADDR, " PDP Redirect Address Object (PDPRedirAddr)" },
122 { COPS_OBJ_LASTPDPADDR, " Last PDP Address (LastPDPaddr)" },
123 { COPS_OBJ_ACCTTIMER, " Accounting Timer Object (AcctTimer)" },
124 { COPS_OBJ_INTEGRITY, " Message Integrity Object (Integrity)" },
129 /* R-Type is carried within the Context Object */
130 static const value_string cops_r_type_vals[] = {
131 { 0x01, "Incoming-Message/Admission Control request" },
132 { 0x02, "Resource-Allocation request" },
133 { 0x04, "Outgoing-Message request" },
134 { 0x08, "Configuration request" },
138 /* Reason-Code is carried within the Reason object */
139 static const value_string cops_reason_vals[] = {
140 { 1, "Unspecified" },
142 { 3, "Preempted (Another request state takes precedence)" },
143 { 4, "Tear (Used to communicate a signaled state removal)" },
144 { 5, "Timeout (Local state has timed-out)" },
145 { 6, "Route Change (Change invalidates request state)" },
146 { 7, "Insufficient Resources (No local resource available)" },
147 { 8, "PDP's Directive (PDP decision caused the delete)" },
148 { 9, "Unsupported decision (PDP decision not supported)" },
149 { 10, "Synchronize Handle Unknown" },
150 { 11, "Transient Handle (stateless event)" },
151 { 12, "Malformed Decision (could not recover)" },
152 { 13, "Unknown COPS Object from PDP" },
156 /* Command-Code is carried within the Decision object if C-Type is 1 */
157 static const value_string cops_dec_cmd_code_vals[] = {
158 { 0, "NULL Decision (No configuration data available)" },
159 { 1, "Install (Admit request/Install configuration)" },
160 { 2, "Remove (Remove request/Remove configuration)" },
164 /* Decision flags are also carried with the Decision object if C-Type is 1 */
165 static const value_string cops_dec_cmd_flag_vals[] = {
166 { 0x00, "<None set>" },
167 { 0x01, "Trigger Error (Trigger error message if set)" },
171 /* Error-Code from Error object */
172 static const value_string cops_error_vals[] = {
174 {2, "Invalid handle reference" },
175 {3, "Bad message format (Malformed Message)" },
176 {4, "Unable to process (server gives up on query)" },
177 {5, "Mandatory client-specific info missing" },
178 {6, "Unsupported client" },
179 {7, "Mandatory COPS object missing" },
180 {8, "Client Failure" },
181 {9, "Communication Failure" },
182 {10, "Unspecified" },
183 {11, "Shutting down" },
184 {12, "Redirect to Preferred Server" },
185 {13, "Unknown COPS Object" },
186 {14, "Authentication Failure" },
187 {15, "Authentication Required" },
190 /* Report-Type from Report-Type object */
191 static const value_string cops_report_type_vals[] = {
192 {1, " Success : Decision was successful at the PEP" },
193 {2, " Failure : Decision could not be completed by PEP" },
194 {3, " Accounting: Accounting update for an installed state" },
197 /* Initialize the protocol and registered fields */
198 static gint proto_cops = -1;
199 static gint hf_cops_ver_flags = -1;
200 static gint hf_cops_version = -1;
201 static gint hf_cops_flags = -1;
203 static gint hf_cops_op_code = -1;
204 static gint hf_cops_client_type = -1;
205 static gint hf_cops_msg_len = -1;
207 static gint hf_cops_obj_len = -1;
208 static gint hf_cops_obj_c_num = -1;
209 static gint hf_cops_obj_c_type = -1;
211 static gint hf_cops_r_type_flags = -1;
212 static gint hf_cops_m_type_flags = -1;
214 static gint hf_cops_in_int_ipv4 = -1;
215 static gint hf_cops_in_int_ipv6 = -1;
216 static gint hf_cops_out_int_ipv4 = -1;
217 static gint hf_cops_out_int_ipv6 = -1;
218 static gint hf_cops_int_ifindex = -1;
220 static gint hf_cops_reason = -1;
221 static gint hf_cops_reason_sub = -1;
223 static gint hf_cops_dec_cmd_code = -1;
224 static gint hf_cops_dec_flags = -1;
226 static gint hf_cops_error = -1;
227 static gint hf_cops_error_sub = -1;
229 static gint hf_cops_katimer = -1;
231 static gint hf_cops_pepid = -1;
233 static gint hf_cops_report_type = -1;
235 static gint hf_cops_pdprediraddr_ipv4 = -1;
236 static gint hf_cops_pdprediraddr_ipv6 = -1;
237 static gint hf_cops_lastpdpaddr_ipv4 = -1;
238 static gint hf_cops_lastpdpaddr_ipv6 = -1;
239 static gint hf_cops_pdp_tcp_port = -1;
241 static gint hf_cops_accttimer = -1;
243 static gint hf_cops_key_id = -1;
244 static gint hf_cops_seq_num = -1;
246 /* Initialize the subtree pointers */
247 static gint ett_cops = -1;
248 static gint ett_cops_ver_flags = -1;
249 static gint ett_cops_obj = -1;
250 static gint ett_cops_obj_data = -1;
251 static gint ett_cops_r_type_flags = -1;
252 static gint ett_cops_itf = -1;
253 static gint ett_cops_reason = -1;
254 static gint ett_cops_decision = -1;
255 static gint ett_cops_error = -1;
256 static gint ett_cops_pdp = -1;
258 static int dissect_cops_object(tvbuff_t *tvb, guint32 offset, proto_tree *tree);
259 static int dissect_cops_object_data(tvbuff_t *tvb, guint32 offset, proto_tree *tree,
260 guint8 c_num, guint8 c_type, guint16 len);
262 /* Code to actually dissect the packets */
263 static void dissect_cops(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
267 CHECK_DISPLAY_AS_DATA(proto_cops, tvb, pinfo, tree);
269 pinfo->current_proto = "COPS";
270 if (check_col(pinfo->fd, COL_PROTOCOL))
271 col_set_str(pinfo->fd, COL_PROTOCOL, "COPS");
273 op_code = tvb_get_guint8(tvb, 1);
274 if (check_col(pinfo->fd, COL_INFO))
275 col_add_fstr(pinfo->fd, COL_INFO, "COPS %s",
276 val_to_str(op_code, cops_op_code_vals, "Unknown Op Code"));
280 proto_tree *cops_tree, *ver_flags_tree;
281 guint32 offset, msg_len, carbage;
286 ti = proto_tree_add_item(tree, proto_cops, tvb, offset, tvb_length(tvb), FALSE);
287 cops_tree = proto_item_add_subtree(ti, ett_cops);
289 /* Version and flags share the same byte, put them in a subtree */
290 ver_flags = tvb_get_guint8(tvb, offset);
291 tv = proto_tree_add_uint_format(cops_tree, hf_cops_ver_flags, tvb, offset, 1,
292 ver_flags, "Version: %u, Flags: %s",
293 hi_nibble(ver_flags),
294 val_to_str(lo_nibble(ver_flags), cops_flags_vals, "Unknown"));
295 ver_flags_tree = proto_item_add_subtree(tv, ett_cops_ver_flags);
296 proto_tree_add_uint(ver_flags_tree, hf_cops_version, tvb, offset, 1, ver_flags);
297 proto_tree_add_uint(ver_flags_tree, hf_cops_flags, tvb, offset, 1, ver_flags);
300 proto_tree_add_uint(cops_tree, hf_cops_op_code, tvb, offset, 1, tvb_get_guint8(tvb, offset));
302 proto_tree_add_uint(cops_tree, hf_cops_client_type, tvb, offset, 2, tvb_get_ntohs(tvb, offset));
305 msg_len = tvb_get_ntohl(tvb, offset);
306 proto_tree_add_uint(cops_tree, hf_cops_msg_len, tvb, offset, 4, tvb_get_ntohl(tvb, offset));
309 while (msg_len >= COPS_OBJECT_HDR_SIZE) {
312 consumed = dissect_cops_object(tvb, offset, cops_tree);
319 carbage = tvb_length_remaining(tvb, offset);
321 proto_tree_add_text(cops_tree, tvb, offset, carbage,
322 "Trailing carbage: %u byte%s", carbage,
323 plurality(carbage, "", "s"));
329 static char *cops_c_type_to_str(guint8 c_num, guint8 c_type)
332 case COPS_OBJ_HANDLE:
334 return "Client Handle";
336 case COPS_OBJ_IN_INT:
337 case COPS_OBJ_OUT_INT:
339 return "IPv4 Address + Interface";
340 else if (c_type == 2)
341 return "IPv6 Address + Interface";
343 case COPS_OBJ_DECISION:
344 case COPS_OBJ_LPDPDECISION:
346 return "Decision Flags (Mandatory)";
347 else if (c_type == 2)
348 return "Stateless Data";
349 else if (c_type == 3)
350 return "Replacement Data";
351 else if (c_type == 4)
352 return "Client Specific Decision Data";
353 else if (c_type == 5)
354 return "Named Decision Data";
356 case COPS_OBJ_CLIENTSI:
358 return "Signaled ClientSI";
359 else if (c_type == 2)
360 return "Named ClientSI";
362 case COPS_OBJ_KATIMER:
364 return "Keep-alive timer value";
366 case COPS_OBJ_PDPREDIRADDR:
367 case COPS_OBJ_LASTPDPADDR:
369 return "IPv4 Address + TCP Port";
370 else if (c_type == 2)
371 return "IPv6 Address + TCP Port";
373 case COPS_OBJ_ACCTTIMER:
375 return "Accounting timer value";
377 case COPS_OBJ_INTEGRITY:
379 return "HMAC digest";
386 static int dissect_cops_object(tvbuff_t *tvb, guint32 offset, proto_tree *tree)
388 guint16 object_len, contents_len;
389 guint8 c_num, c_type;
391 proto_tree *obj_tree;
395 if (tvb_length_remaining(tvb, offset) < COPS_OBJECT_HDR_SIZE)
398 object_len = tvb_get_ntohs(tvb, offset);
399 c_num = tvb_get_guint8(tvb, offset + 2);
400 c_type = tvb_get_guint8(tvb, offset + 3);
402 ti = proto_tree_add_uint_format(tree, hf_cops_obj_c_num, tvb, offset, object_len, c_num,
403 "%s: %s", val_to_str(c_num, cops_c_num_vals, "Unknown"),
404 cops_c_type_to_str(c_num, c_type));
405 obj_tree = proto_item_add_subtree(ti, ett_cops_obj);
407 proto_tree_add_uint(obj_tree, hf_cops_obj_len, tvb, offset, 2, tvb_get_ntohs(tvb, offset));
410 proto_tree_add_uint(obj_tree, hf_cops_obj_c_num, tvb, offset, 1, c_num);
413 type_str = cops_c_type_to_str(c_num, c_type);
414 proto_tree_add_text(obj_tree, tvb, offset, 1, "C-Type: %s%s%u%s",
416 strlen(type_str) ? " (" : "",
418 strlen(type_str) ? ")" : "");
421 contents_len = object_len - COPS_OBJECT_HDR_SIZE;
422 ret = dissect_cops_object_data(tvb, offset, obj_tree, c_num, c_type, contents_len);
423 if (ret < 0) return 0;
425 /* Pad to 32bit boundary */
426 if (object_len % sizeof (guint32))
427 object_len += (sizeof (guint32) - object_len % sizeof (guint32));
433 static int dissect_cops_object_data(tvbuff_t *tvb, guint32 offset, proto_tree *tree,
434 guint8 c_num, guint8 c_type, guint16 len)
437 proto_tree *r_type_tree, *itf_tree, *reason_tree, *dec_tree, *error_tree, *pdp_tree;
438 guint16 r_type, m_type, reason, reason_sub, cmd_code, cmd_flags, error, error_sub, tcp_port;
439 guint32 ipv4addr, ifindex;
440 struct e_in6_addr ipv6addr;
443 case COPS_OBJ_CONTEXT:
444 r_type = tvb_get_ntohs(tvb, offset);
445 m_type = tvb_get_ntohs(tvb, offset + 2);
446 ti = proto_tree_add_text(tree, tvb, offset, 4, "Contents: R-Type: %s, M-Type: %u",
447 val_to_str(r_type, cops_r_type_vals, "Unknown"),
450 r_type_tree = proto_item_add_subtree(ti, ett_cops_r_type_flags);
451 proto_tree_add_uint(r_type_tree, hf_cops_r_type_flags, tvb, offset, 2, r_type);
453 proto_tree_add_uint(r_type_tree, hf_cops_m_type_flags, tvb, offset, 2, m_type);
457 case COPS_OBJ_IN_INT:
458 case COPS_OBJ_OUT_INT:
459 if (c_type == 1) { /* IPv4 */
460 tvb_memcpy(tvb, (guint8 *)&ipv4addr, offset, 4);
461 ifindex = tvb_get_ntohl(tvb, offset + 4);
462 ti = proto_tree_add_text(tree, tvb, offset, 8, "Contents: IPv4 address %s, ifIndex: %u",
463 ip_to_str((guint8 *)&ipv4addr), ifindex);
464 itf_tree = proto_item_add_subtree(ti, ett_cops_itf);
465 proto_tree_add_ipv4(itf_tree,
466 (c_num == COPS_OBJ_IN_INT) ? hf_cops_in_int_ipv4 : hf_cops_out_int_ipv4,
467 tvb, offset, 4, ipv4addr);
469 } else if (c_type == 2) { /* IPv6 */
470 tvb_memcpy(tvb, (guint8 *)&ipv6addr, offset, sizeof ipv6addr);
471 ifindex = tvb_get_ntohl(tvb, offset + sizeof ipv6addr);
472 ti = proto_tree_add_text(tree, tvb, offset, 20, "Contents: IPv6 address %s, ifIndex: %u",
473 ip6_to_str(&ipv6addr), ifindex);
474 itf_tree = proto_item_add_subtree(ti, ett_cops_itf);
475 proto_tree_add_ipv6(itf_tree,
476 (c_num == COPS_OBJ_IN_INT) ? hf_cops_in_int_ipv6 : hf_cops_out_int_ipv6,
477 tvb, offset, 16, (guint8 *)&ipv6addr);
482 proto_tree_add_uint(itf_tree, hf_cops_int_ifindex, tvb, offset, 4, ifindex);
486 case COPS_OBJ_REASON:
487 reason = tvb_get_ntohs(tvb, offset);
488 reason_sub = tvb_get_ntohs(tvb, offset + 2);
489 ti = proto_tree_add_text(tree, tvb, offset, 4, "Contents: Reason-Code: %s, Reason Sub-code: 0x%04x",
490 val_to_str(reason, cops_reason_vals, "<Unknown value>"), reason_sub);
491 reason_tree = proto_item_add_subtree(ti, ett_cops_reason);
492 proto_tree_add_uint(reason_tree, hf_cops_reason, tvb, offset, 2, reason);
495 proto_tree_add_text(reason_tree, tvb, offset, 2, "Reason Sub-code: "
496 "Unknown object's C-Num %u, C-Type %u",
497 tvb_get_guint8(tvb, offset), tvb_get_guint8(tvb, offset + 1));
499 proto_tree_add_uint(reason_tree, hf_cops_reason_sub, tvb, offset, 2, reason_sub);
503 case COPS_OBJ_DECISION:
504 case COPS_OBJ_LPDPDECISION:
508 cmd_code = tvb_get_ntohs(tvb, offset);
509 cmd_flags = tvb_get_ntohs(tvb, offset + 2);
510 ti = proto_tree_add_text(tree, tvb, offset, 4, "Contents: Command-Code: %s, Flags: %s",
511 val_to_str(cmd_code, cops_dec_cmd_code_vals, "<Unknown value>"),
512 val_to_str(cmd_flags, cops_dec_cmd_flag_vals, "<Unknown flag>"));
513 dec_tree = proto_item_add_subtree(ti, ett_cops_decision);
514 proto_tree_add_uint(dec_tree, hf_cops_dec_cmd_code, tvb, offset, 2, cmd_code);
516 proto_tree_add_uint(dec_tree, hf_cops_dec_flags, tvb, offset, 2, cmd_flags);
524 error = tvb_get_ntohs(tvb, offset);
525 error_sub = tvb_get_ntohs(tvb, offset + 2);
526 ti = proto_tree_add_text(tree, tvb, offset, 4, "Contents: Error-Code: %s, Error Sub-code: 0x%04x",
527 val_to_str(error, cops_error_vals, "<Unknown value>"), error_sub);
528 error_tree = proto_item_add_subtree(ti, ett_cops_error);
529 proto_tree_add_uint(error_tree, hf_cops_error, tvb, offset, 2, error);
532 proto_tree_add_text(error_tree, tvb, offset, 2, "Error Sub-code: "
533 "Unknown object's C-Num %u, C-Type %u",
534 tvb_get_guint8(tvb, offset), tvb_get_guint8(tvb, offset + 1));
536 proto_tree_add_uint(error_tree, hf_cops_error_sub, tvb, offset, 2, error_sub);
540 case COPS_OBJ_KATIMER:
544 proto_tree_add_item(tree, hf_cops_katimer, tvb, offset + 2, 2, FALSE);
545 if (tvb_get_ntohs(tvb, offset + 2) == 0)
546 proto_tree_add_text(tree, tvb, offset, 0, "Value of zero implies infinity.");
554 if (tvb_strnlen(tvb, offset, len) == -1)
555 proto_tree_add_text(tree, tvb, offset, len, "<PEP Id is not a NUL terminated ASCII string>");
557 proto_tree_add_item(tree, hf_cops_pepid, tvb, offset,
558 tvb_strnlen(tvb, offset, len) + 1, FALSE);
562 case COPS_OBJ_REPORT_TYPE:
566 proto_tree_add_item(tree, hf_cops_report_type, tvb, offset, 2, FALSE);
570 case COPS_OBJ_PDPREDIRADDR:
571 case COPS_OBJ_LASTPDPADDR:
572 if (c_type == 1) { /* IPv4 */
573 tvb_memcpy(tvb, (guint8 *)&ipv4addr, offset, 4);
574 tcp_port = tvb_get_ntohs(tvb, offset + 4 + 2);
575 ti = proto_tree_add_text(tree, tvb, offset, 8, "Contents: IPv4 address %s, TCP Port Number: %u",
576 ip_to_str((guint8 *)&ipv4addr), tcp_port);
577 pdp_tree = proto_item_add_subtree(ti, ett_cops_pdp);
578 proto_tree_add_ipv4(pdp_tree,
579 (c_num == COPS_OBJ_PDPREDIRADDR) ? hf_cops_pdprediraddr_ipv4 : hf_cops_lastpdpaddr_ipv4,
580 tvb, offset, 4, ipv4addr);
582 } else if (c_type == 2) { /* IPv6 */
583 tvb_memcpy(tvb, (guint8 *)&ipv6addr, offset, sizeof ipv6addr);
584 tcp_port = tvb_get_ntohs(tvb, offset + sizeof ipv6addr + 2);
585 ti = proto_tree_add_text(tree, tvb, offset, 20, "Contents: IPv6 address %s, TCP Port Number: %u",
586 ip6_to_str(&ipv6addr), tcp_port);
587 pdp_tree = proto_item_add_subtree(ti, ett_cops_pdp);
588 proto_tree_add_ipv6(pdp_tree,
589 (c_num == COPS_OBJ_PDPREDIRADDR) ? hf_cops_pdprediraddr_ipv6 : hf_cops_lastpdpaddr_ipv6,
590 tvb, offset, 16, (guint8 *)&ipv6addr);
596 proto_tree_add_uint(pdp_tree, hf_cops_pdp_tcp_port, tvb, offset, 2, tcp_port);
600 case COPS_OBJ_ACCTTIMER:
604 proto_tree_add_item(tree, hf_cops_accttimer, tvb, offset + 2, 2, FALSE);
605 if (tvb_get_ntohs(tvb, offset + 2) == 0)
606 proto_tree_add_text(tree, tvb, offset, 0, "Value of zero means "
607 "there SHOULD be no unsolicited accounting updates.");
611 case COPS_OBJ_INTEGRITY:
613 break; /* Not HMAC digest */
615 proto_tree_add_item(tree, hf_cops_key_id, tvb, offset, 4, FALSE);
616 proto_tree_add_item(tree, hf_cops_seq_num, tvb, offset + 4, 4, FALSE);
617 proto_tree_add_text(tree, tvb, offset + 8 , len - 8, "Contents: Keyed Message Digest");
625 ti = proto_tree_add_text(tree, tvb, offset, len, "Contents: %u bytes", len);
630 /* Register the protocol with Ethereal */
631 void proto_register_cops(void)
634 /* Setup list of header fields */
635 static hf_register_info hf[] = {
636 { &hf_cops_ver_flags,
637 { "Version and Flags", "cops.ver_flags",
638 FT_UINT8, BASE_HEX, NULL, 0x0,
639 "Version and Flags in COPS Common Header" }
642 { "Version", "cops.version",
643 FT_UINT8, BASE_DEC, NULL, 0xF0,
644 "Version in COPS Common Header" }
647 { "Flags", "cops.flags",
648 FT_UINT8, BASE_HEX, VALS(cops_flags_vals), 0x0F,
649 "Flags in COPS Common Header" }
652 { "Op Code", "cops.op_code",
653 FT_UINT8, BASE_DEC, VALS(cops_op_code_vals), 0x0,
654 "Op Code in COPS Common Header" }
656 { &hf_cops_client_type,
657 { "Client Type", "cops.client_type",
658 FT_UINT16, BASE_DEC, NULL, 0x0,
659 "Client Type in COPS Common Header" }
662 { "Message Length", "cops.msg_len",
663 FT_UINT32, BASE_DEC, NULL, 0x0,
664 "Message Length in COPS Common Header" }
667 { "Object Length", "cops.obj.len",
668 FT_UINT32, BASE_DEC, NULL, 0x0,
669 "Object Length in COPS Object Header" }
671 { &hf_cops_obj_c_num,
672 { "C-Num", "cops.c_num",
673 FT_UINT8, BASE_DEC, VALS(cops_c_num_vals), 0x0,
674 "C-Num in COPS Object Header" }
676 { &hf_cops_obj_c_type,
677 { "C-Type", "cops.c_type",
678 FT_UINT8, BASE_DEC, NULL, 0x0,
679 "C-Type in COPS Object Header" }
681 { &hf_cops_r_type_flags,
682 { "R-Type", "cops.context.r_type",
683 FT_UINT16, BASE_HEX, VALS(cops_r_type_vals), 0xFFFF,
684 "R-Type in COPS Context Object" }
686 { &hf_cops_m_type_flags,
687 { "M-Type", "cops.context.m_type",
688 FT_UINT16, BASE_HEX, NULL, 0xFFFF,
689 "M-Type in COPS Context Object" }
691 { &hf_cops_in_int_ipv4,
692 { "IPv4 address", "cops.in-int.ipv4",
693 FT_IPv4, 0, NULL, 0xFFFF,
694 "IPv4 address in COPS IN-Int object" }
696 { &hf_cops_in_int_ipv6,
697 { "IPv6 address", "cops.in-int.ipv6",
698 FT_IPv6, 0, NULL, 0xFFFF,
699 "IPv6 address in COPS IN-Int object" }
701 { &hf_cops_out_int_ipv4,
702 { "IPv4 address", "cops.out-int.ipv4",
703 FT_IPv4, 0, NULL, 0xFFFF,
704 "IPv4 address in COPS OUT-Int object" }
706 { &hf_cops_out_int_ipv6,
707 { "IPv6 address", "cops.out-int.ipv6",
708 FT_IPv6, 0, NULL, 0xFFFF,
709 "IPv6 address in COPS OUT-Int" }
711 { &hf_cops_int_ifindex,
712 { "ifIndex", "cops.in-out-int.ifindex",
713 FT_UINT32, BASE_DEC, NULL, 0x0,
714 "If SNMP is supported, corresponds to MIB-II ifIndex" }
717 { "Reason", "cops.reason",
718 FT_UINT16, BASE_DEC, VALS(cops_reason_vals), 0,
719 "Reason in Reason object" }
721 { &hf_cops_reason_sub,
722 { "Reason Sub-code", "cops.reason_sub",
723 FT_UINT16, BASE_HEX, NULL, 0,
724 "Reason Sub-code in Reason object" }
726 { &hf_cops_dec_cmd_code,
727 { "Command-Code", "cops.decision.cmd",
728 FT_UINT16, BASE_DEC, VALS(cops_dec_cmd_code_vals), 0,
729 "Command-Code in Decision/LPDP Decision object" }
731 { &hf_cops_dec_flags,
732 { "Flags", "cops.decision.flags",
733 FT_UINT16, BASE_HEX, VALS(cops_dec_cmd_flag_vals), 0xffff,
734 "Flags in Decision/LPDP Decision object" }
737 { "Error", "cops.error",
738 FT_UINT16, BASE_DEC, VALS(cops_error_vals), 0,
739 "Error in Error object" }
741 { &hf_cops_error_sub,
742 { "Error Sub-code", "cops.error_sub",
743 FT_UINT16, BASE_HEX, NULL, 0,
744 "Error Sub-code in Error object" }
747 { "Contents: KA Timer Value", "cops.katimer.value",
748 FT_UINT16, BASE_DEC, NULL, 0,
749 "Keep-Alive Timer Value in KATimer object" }
752 { "Contents: PEP Id", "cops.pepid.id",
753 FT_STRING, BASE_NONE, NULL, 0,
754 "PEP Id in PEPID object" }
756 { &hf_cops_report_type,
757 { "Contents: Report-Type", "cops.report_type",
758 FT_UINT16, BASE_DEC, VALS(cops_report_type_vals), 0,
759 "Report-Type in Report-Type object" }
761 { &hf_cops_pdprediraddr_ipv4,
762 { "IPv4 address", "cops.pdprediraddr.ipv4",
763 FT_IPv4, 0, NULL, 0xFFFF,
764 "IPv4 address in COPS PDPRedirAddr object" }
766 { &hf_cops_pdprediraddr_ipv6,
767 { "IPv6 address", "cops.pdprediraddr.ipv6",
768 FT_IPv6, 0, NULL, 0xFFFF,
769 "IPv6 address in COPS PDPRedirAddr object" }
771 { &hf_cops_lastpdpaddr_ipv4,
772 { "IPv4 address", "cops.lastpdpaddr.ipv4",
773 FT_IPv4, 0, NULL, 0xFFFF,
774 "IPv4 address in COPS LastPDPAddr object" }
776 { &hf_cops_lastpdpaddr_ipv6,
777 { "IPv6 address", "cops.lastpdpaddr.ipv6",
778 FT_IPv6, 0, NULL, 0xFFFF,
779 "IPv6 address in COPS LastPDPAddr object" }
781 { &hf_cops_pdp_tcp_port,
782 { "TCP Port Number", "cops.pdp.tcp_port",
783 FT_UINT32, BASE_DEC, NULL, 0x0,
784 "TCP Port Number of PDP in PDPRedirAddr/LastPDPAddr object" }
786 { &hf_cops_accttimer,
787 { "Contents: ACCT Timer Value", "cops.accttimer.value",
788 FT_UINT16, BASE_DEC, NULL, 0,
789 "Accounting Timer Value in AcctTimer object" }
792 { "Contents: Key ID", "cops.integrity.key_id",
793 FT_UINT32, BASE_DEC, NULL, 0,
794 "Key ID in Integrity object" }
797 { "Contents: Sequence Number", "cops.integrity.seq_num",
798 FT_UINT32, BASE_DEC, NULL, 0,
799 "Sequence Number in Integrity object" }
803 /* Setup protocol subtree array */
804 static gint *ett[] = {
809 &ett_cops_r_type_flags,
817 /* Register the protocol name and description */
818 proto_cops = proto_register_protocol("Common Open Policy Service", "cops");
820 /* Required function calls to register the header fields and subtrees used */
821 proto_register_field_array(proto_cops, hf, array_length(hf));
822 proto_register_subtree_array(ett, array_length(ett));
826 proto_reg_handoff_cops(void)
828 dissector_add("tcp.port", TCP_PORT_COPS, dissect_cops);