141c99275SPeter Avalos /*
241c99275SPeter Avalos * Copyright (C) 1998 and 1999 WIDE Project.
341c99275SPeter Avalos * All rights reserved.
441c99275SPeter Avalos *
541c99275SPeter Avalos * Redistribution and use in source and binary forms, with or without
641c99275SPeter Avalos * modification, are permitted provided that the following conditions
741c99275SPeter Avalos * are met:
841c99275SPeter Avalos * 1. Redistributions of source code must retain the above copyright
941c99275SPeter Avalos * notice, this list of conditions and the following disclaimer.
1041c99275SPeter Avalos * 2. Redistributions in binary form must reproduce the above copyright
1141c99275SPeter Avalos * notice, this list of conditions and the following disclaimer in the
1241c99275SPeter Avalos * documentation and/or other materials provided with the distribution.
1341c99275SPeter Avalos * 3. Neither the name of the project nor the names of its contributors
1441c99275SPeter Avalos * may be used to endorse or promote products derived from this software
1541c99275SPeter Avalos * without specific prior written permission.
1641c99275SPeter Avalos *
1741c99275SPeter Avalos * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
1841c99275SPeter Avalos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1941c99275SPeter Avalos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2041c99275SPeter Avalos * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
2141c99275SPeter Avalos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2241c99275SPeter Avalos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2341c99275SPeter Avalos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2441c99275SPeter Avalos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2541c99275SPeter Avalos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2641c99275SPeter Avalos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2741c99275SPeter Avalos * SUCH DAMAGE.
2841c99275SPeter Avalos */
29411677aeSAaron LI
30411677aeSAaron LI /* \summary: IPv6 DHCP printer */
31411677aeSAaron LI
3241c99275SPeter Avalos /*
3341c99275SPeter Avalos * RFC3315: DHCPv6
3441c99275SPeter Avalos * supported DHCPv6 options:
35411677aeSAaron LI * RFC3319: Session Initiation Protocol (SIP) Servers options,
36411677aeSAaron LI * RFC3633: IPv6 Prefix options,
37411677aeSAaron LI * RFC3646: DNS Configuration options,
38411677aeSAaron LI * RFC3898: Network Information Service (NIS) Configuration options,
39411677aeSAaron LI * RFC4075: Simple Network Time Protocol (SNTP) Configuration option,
40411677aeSAaron LI * RFC4242: Information Refresh Time option,
41411677aeSAaron LI * RFC4280: Broadcast and Multicast Control Servers options,
42411677aeSAaron LI * RFC5908: Network Time Protocol (NTP) Server Option for DHCPv6
43411677aeSAaron LI * RFC6334: Dual-Stack Lite option,
4441c99275SPeter Avalos */
4541c99275SPeter Avalos
4641c99275SPeter Avalos #ifdef HAVE_CONFIG_H
47*ed775ee7SAntonio Huete Jimenez #include <config.h>
4841c99275SPeter Avalos #endif
4941c99275SPeter Avalos
50*ed775ee7SAntonio Huete Jimenez #include "netdissect-stdinc.h"
5141c99275SPeter Avalos
52411677aeSAaron LI #include "netdissect.h"
5341c99275SPeter Avalos #include "addrtoname.h"
5441c99275SPeter Avalos #include "extract.h"
5541c99275SPeter Avalos
5641c99275SPeter Avalos /* lease duration */
57411677aeSAaron LI #define DHCP6_DURATION_INFINITE 0xffffffff
5841c99275SPeter Avalos
5941c99275SPeter Avalos /* Error Values */
6041c99275SPeter Avalos #define DH6ERR_FAILURE 16
6141c99275SPeter Avalos #define DH6ERR_AUTHFAIL 17
6241c99275SPeter Avalos #define DH6ERR_POORLYFORMED 18
6341c99275SPeter Avalos #define DH6ERR_UNAVAIL 19
6441c99275SPeter Avalos #define DH6ERR_OPTUNAVAIL 20
6541c99275SPeter Avalos
6641c99275SPeter Avalos /* Message type */
6741c99275SPeter Avalos #define DH6_SOLICIT 1
6841c99275SPeter Avalos #define DH6_ADVERTISE 2
6941c99275SPeter Avalos #define DH6_REQUEST 3
7041c99275SPeter Avalos #define DH6_CONFIRM 4
7141c99275SPeter Avalos #define DH6_RENEW 5
7241c99275SPeter Avalos #define DH6_REBIND 6
7341c99275SPeter Avalos #define DH6_REPLY 7
7441c99275SPeter Avalos #define DH6_RELEASE 8
7541c99275SPeter Avalos #define DH6_DECLINE 9
7641c99275SPeter Avalos #define DH6_RECONFIGURE 10
7741c99275SPeter Avalos #define DH6_INFORM_REQ 11
7841c99275SPeter Avalos #define DH6_RELAY_FORW 12
7941c99275SPeter Avalos #define DH6_RELAY_REPLY 13
80ea7b4bf5SPeter Avalos #define DH6_LEASEQUERY 14
81ea7b4bf5SPeter Avalos #define DH6_LQ_REPLY 15
8241c99275SPeter Avalos
83411677aeSAaron LI static const struct tok dh6_msgtype_str[] = {
84411677aeSAaron LI { DH6_SOLICIT, "solicit" },
85411677aeSAaron LI { DH6_ADVERTISE, "advertise" },
86411677aeSAaron LI { DH6_REQUEST, "request" },
87411677aeSAaron LI { DH6_CONFIRM, "confirm" },
88411677aeSAaron LI { DH6_RENEW, "renew" },
89411677aeSAaron LI { DH6_REBIND, "rebind" },
90411677aeSAaron LI { DH6_REPLY, "reply" },
91411677aeSAaron LI { DH6_RELEASE, "release" },
92411677aeSAaron LI { DH6_DECLINE, "decline" },
93411677aeSAaron LI { DH6_RECONFIGURE, "reconfigure" },
94411677aeSAaron LI { DH6_INFORM_REQ, "inf-req" },
95411677aeSAaron LI { DH6_RELAY_FORW, "relay-fwd" },
96411677aeSAaron LI { DH6_RELAY_REPLY, "relay-reply" },
97411677aeSAaron LI { DH6_LEASEQUERY, "leasequery" },
98411677aeSAaron LI { DH6_LQ_REPLY, "leasequery-reply" },
99411677aeSAaron LI { 0, NULL }
100411677aeSAaron LI };
101411677aeSAaron LI
10241c99275SPeter Avalos /* DHCP6 base packet format */
10341c99275SPeter Avalos struct dhcp6 {
10441c99275SPeter Avalos union {
105*ed775ee7SAntonio Huete Jimenez nd_uint8_t msgtype;
106*ed775ee7SAntonio Huete Jimenez nd_uint32_t xid;
10741c99275SPeter Avalos } dh6_msgtypexid;
10841c99275SPeter Avalos /* options follow */
10941c99275SPeter Avalos };
11041c99275SPeter Avalos #define DH6_XIDMASK 0x00ffffff
11141c99275SPeter Avalos
11241c99275SPeter Avalos /* DHCPv6 relay messages */
11341c99275SPeter Avalos struct dhcp6_relay {
114411677aeSAaron LI nd_uint8_t dh6relay_msgtype;
115411677aeSAaron LI nd_uint8_t dh6relay_hcnt;
116*ed775ee7SAntonio Huete Jimenez nd_ipv6 dh6relay_linkaddr; /* XXX: badly aligned */
117*ed775ee7SAntonio Huete Jimenez nd_ipv6 dh6relay_peeraddr;
11841c99275SPeter Avalos /* options follow */
11941c99275SPeter Avalos };
12041c99275SPeter Avalos
12141c99275SPeter Avalos /* options */
12241c99275SPeter Avalos #define DH6OPT_CLIENTID 1
12341c99275SPeter Avalos #define DH6OPT_SERVERID 2
12441c99275SPeter Avalos #define DH6OPT_IA_NA 3
12541c99275SPeter Avalos #define DH6OPT_IA_TA 4
12641c99275SPeter Avalos #define DH6OPT_IA_ADDR 5
12741c99275SPeter Avalos #define DH6OPT_ORO 6
12841c99275SPeter Avalos #define DH6OPT_PREFERENCE 7
12941c99275SPeter Avalos # define DH6OPT_PREF_MAX 255
13041c99275SPeter Avalos #define DH6OPT_ELAPSED_TIME 8
13141c99275SPeter Avalos #define DH6OPT_RELAY_MSG 9
13241c99275SPeter Avalos /*#define DH6OPT_SERVER_MSG 10 deprecated */
13341c99275SPeter Avalos #define DH6OPT_AUTH 11
13441c99275SPeter Avalos # define DH6OPT_AUTHPROTO_DELAYED 2
13541c99275SPeter Avalos # define DH6OPT_AUTHPROTO_RECONFIG 3
13641c99275SPeter Avalos # define DH6OPT_AUTHALG_HMACMD5 1
13741c99275SPeter Avalos # define DH6OPT_AUTHRDM_MONOCOUNTER 0
13841c99275SPeter Avalos # define DH6OPT_AUTHRECONFIG_KEY 1
13941c99275SPeter Avalos # define DH6OPT_AUTHRECONFIG_HMACMD5 2
14041c99275SPeter Avalos #define DH6OPT_UNICAST 12
14141c99275SPeter Avalos #define DH6OPT_STATUS_CODE 13
14241c99275SPeter Avalos # define DH6OPT_STCODE_SUCCESS 0
14341c99275SPeter Avalos # define DH6OPT_STCODE_UNSPECFAIL 1
14441c99275SPeter Avalos # define DH6OPT_STCODE_NOADDRAVAIL 2
14541c99275SPeter Avalos # define DH6OPT_STCODE_NOBINDING 3
14641c99275SPeter Avalos # define DH6OPT_STCODE_NOTONLINK 4
14741c99275SPeter Avalos # define DH6OPT_STCODE_USEMULTICAST 5
14841c99275SPeter Avalos # define DH6OPT_STCODE_NOPREFIXAVAIL 6
149ea7b4bf5SPeter Avalos # define DH6OPT_STCODE_UNKNOWNQUERYTYPE 7
150ea7b4bf5SPeter Avalos # define DH6OPT_STCODE_MALFORMEDQUERY 8
151ea7b4bf5SPeter Avalos # define DH6OPT_STCODE_NOTCONFIGURED 9
152ea7b4bf5SPeter Avalos # define DH6OPT_STCODE_NOTALLOWED 10
15341c99275SPeter Avalos #define DH6OPT_RAPID_COMMIT 14
15441c99275SPeter Avalos #define DH6OPT_USER_CLASS 15
15541c99275SPeter Avalos #define DH6OPT_VENDOR_CLASS 16
15641c99275SPeter Avalos #define DH6OPT_VENDOR_OPTS 17
15741c99275SPeter Avalos #define DH6OPT_INTERFACE_ID 18
15841c99275SPeter Avalos #define DH6OPT_RECONF_MSG 19
15941c99275SPeter Avalos #define DH6OPT_RECONF_ACCEPT 20
16041c99275SPeter Avalos #define DH6OPT_SIP_SERVER_D 21
16141c99275SPeter Avalos #define DH6OPT_SIP_SERVER_A 22
162411677aeSAaron LI #define DH6OPT_DNS_SERVERS 23
163411677aeSAaron LI #define DH6OPT_DOMAIN_LIST 24
16441c99275SPeter Avalos #define DH6OPT_IA_PD 25
16541c99275SPeter Avalos #define DH6OPT_IA_PD_PREFIX 26
16641c99275SPeter Avalos #define DH6OPT_NIS_SERVERS 27
16741c99275SPeter Avalos #define DH6OPT_NISP_SERVERS 28
16841c99275SPeter Avalos #define DH6OPT_NIS_NAME 29
16941c99275SPeter Avalos #define DH6OPT_NISP_NAME 30
170411677aeSAaron LI #define DH6OPT_SNTP_SERVERS 31
17141c99275SPeter Avalos #define DH6OPT_LIFETIME 32
17241c99275SPeter Avalos #define DH6OPT_BCMCS_SERVER_D 33
17341c99275SPeter Avalos #define DH6OPT_BCMCS_SERVER_A 34
17441c99275SPeter Avalos #define DH6OPT_GEOCONF_CIVIC 36
17541c99275SPeter Avalos #define DH6OPT_REMOTE_ID 37
17641c99275SPeter Avalos #define DH6OPT_SUBSCRIBER_ID 38
17741c99275SPeter Avalos #define DH6OPT_CLIENT_FQDN 39
178ea7b4bf5SPeter Avalos #define DH6OPT_PANA_AGENT 40
179ea7b4bf5SPeter Avalos #define DH6OPT_NEW_POSIX_TIMEZONE 41
180ea7b4bf5SPeter Avalos #define DH6OPT_NEW_TZDB_TIMEZONE 42
181ea7b4bf5SPeter Avalos #define DH6OPT_ERO 43
182ea7b4bf5SPeter Avalos #define DH6OPT_LQ_QUERY 44
183ea7b4bf5SPeter Avalos #define DH6OPT_CLIENT_DATA 45
184ea7b4bf5SPeter Avalos #define DH6OPT_CLT_TIME 46
185ea7b4bf5SPeter Avalos #define DH6OPT_LQ_RELAY_DATA 47
186ea7b4bf5SPeter Avalos #define DH6OPT_LQ_CLIENT_LINK 48
187411677aeSAaron LI #define DH6OPT_NTP_SERVER 56
188411677aeSAaron LI # define DH6OPT_NTP_SUBOPTION_SRV_ADDR 1
189411677aeSAaron LI # define DH6OPT_NTP_SUBOPTION_MC_ADDR 2
190411677aeSAaron LI # define DH6OPT_NTP_SUBOPTION_SRV_FQDN 3
191411677aeSAaron LI #define DH6OPT_AFTR_NAME 64
192411677aeSAaron LI #define DH6OPT_MUDURL 112
193411677aeSAaron LI
194411677aeSAaron LI static const struct tok dh6opt_str[] = {
195411677aeSAaron LI { DH6OPT_CLIENTID, "client-ID" },
196411677aeSAaron LI { DH6OPT_SERVERID, "server-ID" },
197411677aeSAaron LI { DH6OPT_IA_NA, "IA_NA" },
198411677aeSAaron LI { DH6OPT_IA_TA, "IA_TA" },
199411677aeSAaron LI { DH6OPT_IA_ADDR, "IA_ADDR" },
200411677aeSAaron LI { DH6OPT_ORO, "option-request" },
201411677aeSAaron LI { DH6OPT_PREFERENCE, "preference" },
202411677aeSAaron LI { DH6OPT_ELAPSED_TIME, "elapsed-time" },
203411677aeSAaron LI { DH6OPT_RELAY_MSG, "relay-message" },
204411677aeSAaron LI { DH6OPT_AUTH, "authentication" },
205411677aeSAaron LI { DH6OPT_UNICAST, "server-unicast" },
206411677aeSAaron LI { DH6OPT_STATUS_CODE, "status-code" },
207411677aeSAaron LI { DH6OPT_RAPID_COMMIT, "rapid-commit" },
208411677aeSAaron LI { DH6OPT_USER_CLASS, "user-class" },
209411677aeSAaron LI { DH6OPT_VENDOR_CLASS, "vendor-class" },
210411677aeSAaron LI { DH6OPT_VENDOR_OPTS, "vendor-specific-info" },
211411677aeSAaron LI { DH6OPT_INTERFACE_ID, "interface-ID" },
212411677aeSAaron LI { DH6OPT_RECONF_MSG, "reconfigure-message" },
213411677aeSAaron LI { DH6OPT_RECONF_ACCEPT, "reconfigure-accept" },
214411677aeSAaron LI { DH6OPT_SIP_SERVER_D, "SIP-servers-domain" },
215411677aeSAaron LI { DH6OPT_SIP_SERVER_A, "SIP-servers-address" },
216411677aeSAaron LI { DH6OPT_DNS_SERVERS, "DNS-server" },
217411677aeSAaron LI { DH6OPT_DOMAIN_LIST, "DNS-search-list" },
218411677aeSAaron LI { DH6OPT_IA_PD, "IA_PD" },
219411677aeSAaron LI { DH6OPT_IA_PD_PREFIX, "IA_PD-prefix" },
220411677aeSAaron LI { DH6OPT_SNTP_SERVERS, "SNTP-servers" },
221411677aeSAaron LI { DH6OPT_LIFETIME, "lifetime" },
222411677aeSAaron LI { DH6OPT_NIS_SERVERS, "NIS-server" },
223411677aeSAaron LI { DH6OPT_NISP_SERVERS, "NIS+-server" },
224411677aeSAaron LI { DH6OPT_NIS_NAME, "NIS-domain-name" },
225411677aeSAaron LI { DH6OPT_NISP_NAME, "NIS+-domain-name" },
226411677aeSAaron LI { DH6OPT_BCMCS_SERVER_D, "BCMCS-domain-name" },
227411677aeSAaron LI { DH6OPT_BCMCS_SERVER_A, "BCMCS-server" },
228411677aeSAaron LI { DH6OPT_GEOCONF_CIVIC, "Geoconf-Civic" },
229411677aeSAaron LI { DH6OPT_REMOTE_ID, "Remote-ID" },
230411677aeSAaron LI { DH6OPT_SUBSCRIBER_ID, "Subscriber-ID" },
231411677aeSAaron LI { DH6OPT_CLIENT_FQDN, "Client-FQDN" },
232411677aeSAaron LI { DH6OPT_PANA_AGENT, "PANA-agent" },
233411677aeSAaron LI { DH6OPT_NEW_POSIX_TIMEZONE, "POSIX-timezone" },
234411677aeSAaron LI { DH6OPT_NEW_TZDB_TIMEZONE, "POSIX-tz-database" },
235411677aeSAaron LI { DH6OPT_ERO, "Echo-request-option" },
236411677aeSAaron LI { DH6OPT_LQ_QUERY, "Lease-query" },
237411677aeSAaron LI { DH6OPT_CLIENT_DATA, "LQ-client-data" },
238411677aeSAaron LI { DH6OPT_CLT_TIME, "Clt-time" },
239411677aeSAaron LI { DH6OPT_LQ_RELAY_DATA, "LQ-relay-data" },
240411677aeSAaron LI { DH6OPT_LQ_CLIENT_LINK, "LQ-client-link" },
241411677aeSAaron LI { DH6OPT_NTP_SERVER, "NTP-server" },
242411677aeSAaron LI { DH6OPT_AFTR_NAME, "AFTR-Name" },
243411677aeSAaron LI { DH6OPT_MUDURL, "MUD-URL" },
244411677aeSAaron LI { 0, NULL }
245411677aeSAaron LI };
246411677aeSAaron LI
247411677aeSAaron LI static const struct tok dh6opt_stcode_str[] = {
248411677aeSAaron LI { DH6OPT_STCODE_SUCCESS, "Success" }, /* RFC3315 */
249411677aeSAaron LI { DH6OPT_STCODE_UNSPECFAIL, "UnspecFail" }, /* RFC3315 */
250411677aeSAaron LI { DH6OPT_STCODE_NOADDRAVAIL, "NoAddrsAvail" }, /* RFC3315 */
251411677aeSAaron LI { DH6OPT_STCODE_NOBINDING, "NoBinding" }, /* RFC3315 */
252411677aeSAaron LI { DH6OPT_STCODE_NOTONLINK, "NotOnLink" }, /* RFC3315 */
253411677aeSAaron LI { DH6OPT_STCODE_USEMULTICAST, "UseMulticast" }, /* RFC3315 */
254411677aeSAaron LI { DH6OPT_STCODE_NOPREFIXAVAIL, "NoPrefixAvail" }, /* RFC3633 */
255411677aeSAaron LI { DH6OPT_STCODE_UNKNOWNQUERYTYPE, "UnknownQueryType" }, /* RFC5007 */
256411677aeSAaron LI { DH6OPT_STCODE_MALFORMEDQUERY, "MalformedQuery" }, /* RFC5007 */
257411677aeSAaron LI { DH6OPT_STCODE_NOTCONFIGURED, "NotConfigured" }, /* RFC5007 */
258411677aeSAaron LI { DH6OPT_STCODE_NOTALLOWED, "NotAllowed" }, /* RFC5007 */
259411677aeSAaron LI { 0, NULL }
260411677aeSAaron LI };
26141c99275SPeter Avalos
26241c99275SPeter Avalos struct dhcp6opt {
263411677aeSAaron LI nd_uint16_t dh6opt_type;
264411677aeSAaron LI nd_uint16_t dh6opt_len;
26541c99275SPeter Avalos /* type-dependent data follows */
26641c99275SPeter Avalos };
26741c99275SPeter Avalos
26841c99275SPeter Avalos static const char *
dhcp6stcode(const uint16_t code)269411677aeSAaron LI dhcp6stcode(const uint16_t code)
27041c99275SPeter Avalos {
271411677aeSAaron LI return code > 255 ? "INVALID code" : tok2str(dh6opt_stcode_str, "code%u", code);
27241c99275SPeter Avalos }
27341c99275SPeter Avalos
27441c99275SPeter Avalos static void
dhcp6opt_print(netdissect_options * ndo,const u_char * cp,const u_char * ep)275411677aeSAaron LI dhcp6opt_print(netdissect_options *ndo,
276411677aeSAaron LI const u_char *cp, const u_char *ep)
27741c99275SPeter Avalos {
278411677aeSAaron LI const struct dhcp6opt *dh6o;
279411677aeSAaron LI const u_char *tp;
280*ed775ee7SAntonio Huete Jimenez u_int i;
281411677aeSAaron LI uint16_t opttype;
282*ed775ee7SAntonio Huete Jimenez uint16_t optlen;
283411677aeSAaron LI uint8_t auth_proto;
284*ed775ee7SAntonio Huete Jimenez uint8_t auth_alg;
285*ed775ee7SAntonio Huete Jimenez uint8_t auth_rdm;
28641c99275SPeter Avalos u_int authinfolen, authrealmlen;
287*ed775ee7SAntonio Huete Jimenez u_int remain_len; /* Length of remaining options */
288*ed775ee7SAntonio Huete Jimenez u_int label_len; /* Label length */
289411677aeSAaron LI uint16_t subopt_code;
290411677aeSAaron LI uint16_t subopt_len;
291*ed775ee7SAntonio Huete Jimenez uint8_t dh6_reconf_type;
292*ed775ee7SAntonio Huete Jimenez uint8_t dh6_lq_query_type;
29341c99275SPeter Avalos
29441c99275SPeter Avalos if (cp == ep)
29541c99275SPeter Avalos return;
29641c99275SPeter Avalos while (cp < ep) {
29741c99275SPeter Avalos if (ep < cp + sizeof(*dh6o))
29841c99275SPeter Avalos goto trunc;
299411677aeSAaron LI dh6o = (const struct dhcp6opt *)cp;
300*ed775ee7SAntonio Huete Jimenez ND_TCHECK_SIZE(dh6o);
301*ed775ee7SAntonio Huete Jimenez optlen = GET_BE_U_2(dh6o->dh6opt_len);
30241c99275SPeter Avalos if (ep < cp + sizeof(*dh6o) + optlen)
30341c99275SPeter Avalos goto trunc;
304*ed775ee7SAntonio Huete Jimenez opttype = GET_BE_U_2(dh6o->dh6opt_type);
305*ed775ee7SAntonio Huete Jimenez ND_PRINT(" (%s", tok2str(dh6opt_str, "opt_%u", opttype));
306*ed775ee7SAntonio Huete Jimenez ND_TCHECK_LEN(cp + sizeof(*dh6o), optlen);
30741c99275SPeter Avalos switch (opttype) {
30841c99275SPeter Avalos case DH6OPT_CLIENTID:
30941c99275SPeter Avalos case DH6OPT_SERVERID:
31041c99275SPeter Avalos if (optlen < 2) {
31141c99275SPeter Avalos /*(*/
312*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
31341c99275SPeter Avalos break;
31441c99275SPeter Avalos }
315411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
316*ed775ee7SAntonio Huete Jimenez switch (GET_BE_U_2(tp)) {
31741c99275SPeter Avalos case 1:
31841c99275SPeter Avalos if (optlen >= 2 + 6) {
319*ed775ee7SAntonio Huete Jimenez ND_PRINT(" hwaddr/time type %u time %u ",
320*ed775ee7SAntonio Huete Jimenez GET_BE_U_2(tp + 2),
321*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp + 4));
32241c99275SPeter Avalos for (i = 8; i < optlen; i++)
323*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x",
324*ed775ee7SAntonio Huete Jimenez GET_U_1(tp + i));
32541c99275SPeter Avalos /*(*/
326*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
32741c99275SPeter Avalos } else {
32841c99275SPeter Avalos /*(*/
329*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
33041c99275SPeter Avalos }
33141c99275SPeter Avalos break;
33241c99275SPeter Avalos case 2:
33341c99275SPeter Avalos if (optlen >= 2 + 8) {
334*ed775ee7SAntonio Huete Jimenez ND_PRINT(" vid ");
33541c99275SPeter Avalos for (i = 2; i < 2 + 8; i++)
336*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x",
337*ed775ee7SAntonio Huete Jimenez GET_U_1(tp + i));
33841c99275SPeter Avalos /*(*/
339*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
34041c99275SPeter Avalos } else {
34141c99275SPeter Avalos /*(*/
342*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
34341c99275SPeter Avalos }
34441c99275SPeter Avalos break;
34541c99275SPeter Avalos case 3:
34641c99275SPeter Avalos if (optlen >= 2 + 2) {
347*ed775ee7SAntonio Huete Jimenez ND_PRINT(" hwaddr type %u ",
348*ed775ee7SAntonio Huete Jimenez GET_BE_U_2(tp + 2));
34941c99275SPeter Avalos for (i = 4; i < optlen; i++)
350*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x",
351*ed775ee7SAntonio Huete Jimenez GET_U_1(tp + i));
35241c99275SPeter Avalos /*(*/
353*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
35441c99275SPeter Avalos } else {
35541c99275SPeter Avalos /*(*/
356*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
35741c99275SPeter Avalos }
35841c99275SPeter Avalos break;
35941c99275SPeter Avalos default:
360*ed775ee7SAntonio Huete Jimenez ND_PRINT(" type %u)", GET_BE_U_2(tp));
36141c99275SPeter Avalos break;
36241c99275SPeter Avalos }
36341c99275SPeter Avalos break;
36441c99275SPeter Avalos case DH6OPT_IA_ADDR:
36527bfbee1SPeter Avalos if (optlen < 24) {
36627bfbee1SPeter Avalos /*(*/
367*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
36841c99275SPeter Avalos break;
36941c99275SPeter Avalos }
370411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
371*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s", GET_IP6ADDR_STRING(tp));
372*ed775ee7SAntonio Huete Jimenez ND_PRINT(" pltime:%u vltime:%u",
373*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp + 16),
374*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp + 20));
37527bfbee1SPeter Avalos if (optlen > 24) {
37641c99275SPeter Avalos /* there are sub-options */
377411677aeSAaron LI dhcp6opt_print(ndo, tp + 24, tp + optlen);
37841c99275SPeter Avalos }
379*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
38041c99275SPeter Avalos break;
38141c99275SPeter Avalos case DH6OPT_ORO:
382ea7b4bf5SPeter Avalos case DH6OPT_ERO:
38341c99275SPeter Avalos if (optlen % 2) {
384*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
38541c99275SPeter Avalos break;
38641c99275SPeter Avalos }
387411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
38841c99275SPeter Avalos for (i = 0; i < optlen; i += 2) {
389*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s",
390*ed775ee7SAntonio Huete Jimenez tok2str(dh6opt_str, "opt_%u", GET_BE_U_2(tp + i)));
39141c99275SPeter Avalos }
392*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
39341c99275SPeter Avalos break;
39441c99275SPeter Avalos case DH6OPT_PREFERENCE:
39541c99275SPeter Avalos if (optlen != 1) {
396*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
39741c99275SPeter Avalos break;
39841c99275SPeter Avalos }
399411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
400*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %u)", GET_U_1(tp));
40141c99275SPeter Avalos break;
40241c99275SPeter Avalos case DH6OPT_ELAPSED_TIME:
40341c99275SPeter Avalos if (optlen != 2) {
404*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
40541c99275SPeter Avalos break;
40641c99275SPeter Avalos }
407411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
408*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %u)", GET_BE_U_2(tp));
40941c99275SPeter Avalos break;
41041c99275SPeter Avalos case DH6OPT_RELAY_MSG:
411*ed775ee7SAntonio Huete Jimenez {
412*ed775ee7SAntonio Huete Jimenez const u_char *snapend_save;
413*ed775ee7SAntonio Huete Jimenez
414*ed775ee7SAntonio Huete Jimenez ND_PRINT(" (");
415411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
416*ed775ee7SAntonio Huete Jimenez /*
417*ed775ee7SAntonio Huete Jimenez * Update the snapend to the end of the option before
418*ed775ee7SAntonio Huete Jimenez * calling recursively dhcp6_print() for the nested
419*ed775ee7SAntonio Huete Jimenez * packet. Other options may be present after the
420*ed775ee7SAntonio Huete Jimenez * nested DHCPv6 packet. This prevents that, in
421*ed775ee7SAntonio Huete Jimenez * dhcp6_print(), for the nested DHCPv6 packet, the
422*ed775ee7SAntonio Huete Jimenez * remaining length < remaining caplen.
423*ed775ee7SAntonio Huete Jimenez */
424*ed775ee7SAntonio Huete Jimenez snapend_save = ndo->ndo_snapend;
425*ed775ee7SAntonio Huete Jimenez ndo->ndo_snapend = ND_MIN(tp + optlen, ndo->ndo_snapend);
426411677aeSAaron LI dhcp6_print(ndo, tp, optlen);
427*ed775ee7SAntonio Huete Jimenez ndo->ndo_snapend = snapend_save;
428*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
42941c99275SPeter Avalos break;
430*ed775ee7SAntonio Huete Jimenez }
43141c99275SPeter Avalos case DH6OPT_AUTH:
43227bfbee1SPeter Avalos if (optlen < 11) {
433*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
43441c99275SPeter Avalos break;
43541c99275SPeter Avalos }
436411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
437*ed775ee7SAntonio Huete Jimenez auth_proto = GET_U_1(tp);
43827bfbee1SPeter Avalos switch (auth_proto) {
43941c99275SPeter Avalos case DH6OPT_AUTHPROTO_DELAYED:
440*ed775ee7SAntonio Huete Jimenez ND_PRINT(" proto: delayed");
44141c99275SPeter Avalos break;
44241c99275SPeter Avalos case DH6OPT_AUTHPROTO_RECONFIG:
443*ed775ee7SAntonio Huete Jimenez ND_PRINT(" proto: reconfigure");
44441c99275SPeter Avalos break;
44541c99275SPeter Avalos default:
446*ed775ee7SAntonio Huete Jimenez ND_PRINT(" proto: %u", auth_proto);
44741c99275SPeter Avalos break;
44841c99275SPeter Avalos }
44927bfbee1SPeter Avalos tp++;
450*ed775ee7SAntonio Huete Jimenez auth_alg = GET_U_1(tp);
451*ed775ee7SAntonio Huete Jimenez switch (auth_alg) {
45241c99275SPeter Avalos case DH6OPT_AUTHALG_HMACMD5:
45341c99275SPeter Avalos /* XXX: may depend on the protocol */
454*ed775ee7SAntonio Huete Jimenez ND_PRINT(", alg: HMAC-MD5");
45541c99275SPeter Avalos break;
45641c99275SPeter Avalos default:
457*ed775ee7SAntonio Huete Jimenez ND_PRINT(", alg: %u", auth_alg);
45841c99275SPeter Avalos break;
45941c99275SPeter Avalos }
46027bfbee1SPeter Avalos tp++;
461*ed775ee7SAntonio Huete Jimenez auth_rdm = GET_U_1(tp);
462*ed775ee7SAntonio Huete Jimenez switch (auth_rdm) {
46341c99275SPeter Avalos case DH6OPT_AUTHRDM_MONOCOUNTER:
464*ed775ee7SAntonio Huete Jimenez ND_PRINT(", RDM: mono");
46541c99275SPeter Avalos break;
46641c99275SPeter Avalos default:
467*ed775ee7SAntonio Huete Jimenez ND_PRINT(", RDM: %u", auth_rdm);
46841c99275SPeter Avalos break;
46941c99275SPeter Avalos }
47027bfbee1SPeter Avalos tp++;
471*ed775ee7SAntonio Huete Jimenez ND_PRINT(", RD:");
47227bfbee1SPeter Avalos for (i = 0; i < 4; i++, tp += 2)
473*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %04x", GET_BE_U_2(tp));
47441c99275SPeter Avalos
47541c99275SPeter Avalos /* protocol dependent part */
47627bfbee1SPeter Avalos authinfolen = optlen - 11;
47727bfbee1SPeter Avalos switch (auth_proto) {
47841c99275SPeter Avalos case DH6OPT_AUTHPROTO_DELAYED:
47941c99275SPeter Avalos if (authinfolen == 0)
48041c99275SPeter Avalos break;
48141c99275SPeter Avalos if (authinfolen < 20) {
482*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ??");
48341c99275SPeter Avalos break;
48441c99275SPeter Avalos }
48541c99275SPeter Avalos authrealmlen = authinfolen - 20;
48641c99275SPeter Avalos if (authrealmlen > 0) {
487*ed775ee7SAntonio Huete Jimenez ND_PRINT(", realm: ");
48841c99275SPeter Avalos }
48941c99275SPeter Avalos for (i = 0; i < authrealmlen; i++, tp++)
490*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x", GET_U_1(tp));
491*ed775ee7SAntonio Huete Jimenez ND_PRINT(", key ID: %08x", GET_BE_U_4(tp));
49241c99275SPeter Avalos tp += 4;
493*ed775ee7SAntonio Huete Jimenez ND_PRINT(", HMAC-MD5:");
49441c99275SPeter Avalos for (i = 0; i < 4; i++, tp+= 4)
495*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %08x", GET_BE_U_4(tp));
49641c99275SPeter Avalos break;
49741c99275SPeter Avalos case DH6OPT_AUTHPROTO_RECONFIG:
49841c99275SPeter Avalos if (authinfolen != 17) {
499*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ??");
50041c99275SPeter Avalos break;
50141c99275SPeter Avalos }
502*ed775ee7SAntonio Huete Jimenez switch (GET_U_1(tp)) {
50341c99275SPeter Avalos case DH6OPT_AUTHRECONFIG_KEY:
504*ed775ee7SAntonio Huete Jimenez ND_PRINT(" reconfig-key");
50541c99275SPeter Avalos break;
50641c99275SPeter Avalos case DH6OPT_AUTHRECONFIG_HMACMD5:
507*ed775ee7SAntonio Huete Jimenez ND_PRINT(" type: HMAC-MD5");
50841c99275SPeter Avalos break;
50941c99275SPeter Avalos default:
510*ed775ee7SAntonio Huete Jimenez ND_PRINT(" type: ??");
51141c99275SPeter Avalos break;
51241c99275SPeter Avalos }
513*ed775ee7SAntonio Huete Jimenez tp++;
514*ed775ee7SAntonio Huete Jimenez ND_PRINT(" value:");
51541c99275SPeter Avalos for (i = 0; i < 4; i++, tp+= 4)
516*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %08x", GET_BE_U_4(tp));
51741c99275SPeter Avalos break;
51841c99275SPeter Avalos default:
519*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ??");
52041c99275SPeter Avalos break;
52141c99275SPeter Avalos }
52241c99275SPeter Avalos
523*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
52441c99275SPeter Avalos break;
52541c99275SPeter Avalos case DH6OPT_RAPID_COMMIT: /* nothing todo */
526*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
52741c99275SPeter Avalos break;
52841c99275SPeter Avalos case DH6OPT_INTERFACE_ID:
529ea7b4bf5SPeter Avalos case DH6OPT_SUBSCRIBER_ID:
53041c99275SPeter Avalos /*
53141c99275SPeter Avalos * Since we cannot predict the encoding, print hex dump
53241c99275SPeter Avalos * at most 10 characters.
53341c99275SPeter Avalos */
534411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
535*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ");
53641c99275SPeter Avalos for (i = 0; i < optlen && i < 10; i++)
537*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x", GET_U_1(tp + i));
538*ed775ee7SAntonio Huete Jimenez ND_PRINT("...)");
53941c99275SPeter Avalos break;
54041c99275SPeter Avalos case DH6OPT_RECONF_MSG:
541411677aeSAaron LI if (optlen != 1) {
542*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
543411677aeSAaron LI break;
544411677aeSAaron LI }
545411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
546*ed775ee7SAntonio Huete Jimenez dh6_reconf_type = GET_U_1(tp);
547*ed775ee7SAntonio Huete Jimenez switch (dh6_reconf_type) {
54841c99275SPeter Avalos case DH6_RENEW:
549*ed775ee7SAntonio Huete Jimenez ND_PRINT(" for renew)");
55041c99275SPeter Avalos break;
55141c99275SPeter Avalos case DH6_INFORM_REQ:
552*ed775ee7SAntonio Huete Jimenez ND_PRINT(" for inf-req)");
55341c99275SPeter Avalos break;
55441c99275SPeter Avalos default:
555*ed775ee7SAntonio Huete Jimenez ND_PRINT(" for ?\?\?(%02x))", dh6_reconf_type);
55641c99275SPeter Avalos break;
55741c99275SPeter Avalos }
55841c99275SPeter Avalos break;
55941c99275SPeter Avalos case DH6OPT_RECONF_ACCEPT: /* nothing todo */
560*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
56141c99275SPeter Avalos break;
56241c99275SPeter Avalos case DH6OPT_SIP_SERVER_A:
563411677aeSAaron LI case DH6OPT_DNS_SERVERS:
564411677aeSAaron LI case DH6OPT_SNTP_SERVERS:
56541c99275SPeter Avalos case DH6OPT_NIS_SERVERS:
56641c99275SPeter Avalos case DH6OPT_NISP_SERVERS:
56741c99275SPeter Avalos case DH6OPT_BCMCS_SERVER_A:
568ea7b4bf5SPeter Avalos case DH6OPT_PANA_AGENT:
569ea7b4bf5SPeter Avalos case DH6OPT_LQ_CLIENT_LINK:
57041c99275SPeter Avalos if (optlen % 16) {
571*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
57241c99275SPeter Avalos break;
57341c99275SPeter Avalos }
574411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
57541c99275SPeter Avalos for (i = 0; i < optlen; i += 16)
576*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s", GET_IP6ADDR_STRING(tp + i));
577*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
578411677aeSAaron LI break;
579411677aeSAaron LI case DH6OPT_SIP_SERVER_D:
580411677aeSAaron LI case DH6OPT_DOMAIN_LIST:
581411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
582411677aeSAaron LI while (tp < cp + sizeof(*dh6o) + optlen) {
583*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ");
584*ed775ee7SAntonio Huete Jimenez if ((tp = fqdn_print(ndo, tp, cp + sizeof(*dh6o) + optlen)) == NULL)
585411677aeSAaron LI goto trunc;
586411677aeSAaron LI }
587*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
58841c99275SPeter Avalos break;
58941c99275SPeter Avalos case DH6OPT_STATUS_CODE:
59041c99275SPeter Avalos if (optlen < 2) {
591*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
59241c99275SPeter Avalos break;
59341c99275SPeter Avalos }
594411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
595*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s)", dhcp6stcode(GET_BE_U_2(tp)));
59641c99275SPeter Avalos break;
59741c99275SPeter Avalos case DH6OPT_IA_NA:
59841c99275SPeter Avalos case DH6OPT_IA_PD:
59927bfbee1SPeter Avalos if (optlen < 12) {
600*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
60141c99275SPeter Avalos break;
60241c99275SPeter Avalos }
603411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
604*ed775ee7SAntonio Huete Jimenez ND_PRINT(" IAID:%u T1:%u T2:%u",
605*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp),
606*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp + 4),
607*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp + 8));
60827bfbee1SPeter Avalos if (optlen > 12) {
60941c99275SPeter Avalos /* there are sub-options */
610411677aeSAaron LI dhcp6opt_print(ndo, tp + 12, tp + optlen);
61141c99275SPeter Avalos }
612*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
61341c99275SPeter Avalos break;
614ea7b4bf5SPeter Avalos case DH6OPT_IA_TA:
615ea7b4bf5SPeter Avalos if (optlen < 4) {
616*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
617ea7b4bf5SPeter Avalos break;
618ea7b4bf5SPeter Avalos }
619411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
620*ed775ee7SAntonio Huete Jimenez ND_PRINT(" IAID:%u", GET_BE_U_4(tp));
621ea7b4bf5SPeter Avalos if (optlen > 4) {
622ea7b4bf5SPeter Avalos /* there are sub-options */
623411677aeSAaron LI dhcp6opt_print(ndo, tp + 4, tp + optlen);
624ea7b4bf5SPeter Avalos }
625*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
626ea7b4bf5SPeter Avalos break;
62741c99275SPeter Avalos case DH6OPT_IA_PD_PREFIX:
62827bfbee1SPeter Avalos if (optlen < 25) {
629*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
63041c99275SPeter Avalos break;
63141c99275SPeter Avalos }
632411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
633*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s/%u", GET_IP6ADDR_STRING(tp + 9),
634*ed775ee7SAntonio Huete Jimenez GET_U_1(tp + 8));
635*ed775ee7SAntonio Huete Jimenez ND_PRINT(" pltime:%u vltime:%u",
636*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp),
637*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(tp + 4));
63827bfbee1SPeter Avalos if (optlen > 25) {
63941c99275SPeter Avalos /* there are sub-options */
640411677aeSAaron LI dhcp6opt_print(ndo, tp + 25, tp + optlen);
64141c99275SPeter Avalos }
642*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
64341c99275SPeter Avalos break;
64441c99275SPeter Avalos case DH6OPT_LIFETIME:
645ea7b4bf5SPeter Avalos case DH6OPT_CLT_TIME:
64641c99275SPeter Avalos if (optlen != 4) {
647*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
64841c99275SPeter Avalos break;
64941c99275SPeter Avalos }
650411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
651*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %u)", GET_BE_U_4(tp));
65241c99275SPeter Avalos break;
653ea7b4bf5SPeter Avalos case DH6OPT_REMOTE_ID:
654ea7b4bf5SPeter Avalos if (optlen < 4) {
655*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
656ea7b4bf5SPeter Avalos break;
657ea7b4bf5SPeter Avalos }
658411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
659*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %u ", GET_BE_U_4(tp));
660ea7b4bf5SPeter Avalos /*
661ea7b4bf5SPeter Avalos * Print hex dump first 10 characters.
662ea7b4bf5SPeter Avalos */
663ea7b4bf5SPeter Avalos for (i = 4; i < optlen && i < 14; i++)
664*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x", GET_U_1(tp + i));
665*ed775ee7SAntonio Huete Jimenez ND_PRINT("...)");
666ea7b4bf5SPeter Avalos break;
667ea7b4bf5SPeter Avalos case DH6OPT_LQ_QUERY:
668ea7b4bf5SPeter Avalos if (optlen < 17) {
669*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
670ea7b4bf5SPeter Avalos break;
671ea7b4bf5SPeter Avalos }
672411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
673*ed775ee7SAntonio Huete Jimenez dh6_lq_query_type = GET_U_1(tp);
674*ed775ee7SAntonio Huete Jimenez switch (dh6_lq_query_type) {
675ea7b4bf5SPeter Avalos case 1:
676*ed775ee7SAntonio Huete Jimenez ND_PRINT(" by-address");
677ea7b4bf5SPeter Avalos break;
678ea7b4bf5SPeter Avalos case 2:
679*ed775ee7SAntonio Huete Jimenez ND_PRINT(" by-clientID");
680ea7b4bf5SPeter Avalos break;
681ea7b4bf5SPeter Avalos default:
682*ed775ee7SAntonio Huete Jimenez ND_PRINT(" type_%u", dh6_lq_query_type);
683ea7b4bf5SPeter Avalos break;
684ea7b4bf5SPeter Avalos }
685*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s", GET_IP6ADDR_STRING(tp + 1));
686ea7b4bf5SPeter Avalos if (optlen > 17) {
687ea7b4bf5SPeter Avalos /* there are query-options */
688411677aeSAaron LI dhcp6opt_print(ndo, tp + 17, tp + optlen);
689ea7b4bf5SPeter Avalos }
690*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
691ea7b4bf5SPeter Avalos break;
692ea7b4bf5SPeter Avalos case DH6OPT_CLIENT_DATA:
693411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
694ea7b4bf5SPeter Avalos if (optlen > 0) {
695ea7b4bf5SPeter Avalos /* there are encapsulated options */
696411677aeSAaron LI dhcp6opt_print(ndo, tp, tp + optlen);
697ea7b4bf5SPeter Avalos }
698*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
699ea7b4bf5SPeter Avalos break;
700ea7b4bf5SPeter Avalos case DH6OPT_LQ_RELAY_DATA:
701ea7b4bf5SPeter Avalos if (optlen < 16) {
702*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
703ea7b4bf5SPeter Avalos break;
704ea7b4bf5SPeter Avalos }
705411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
706*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s ", GET_IP6ADDR_STRING(tp));
707ea7b4bf5SPeter Avalos /*
708ea7b4bf5SPeter Avalos * Print hex dump first 10 characters.
709ea7b4bf5SPeter Avalos */
710ea7b4bf5SPeter Avalos for (i = 16; i < optlen && i < 26; i++)
711*ed775ee7SAntonio Huete Jimenez ND_PRINT("%02x", GET_U_1(tp + i));
712*ed775ee7SAntonio Huete Jimenez ND_PRINT("...)");
713411677aeSAaron LI break;
714411677aeSAaron LI case DH6OPT_NTP_SERVER:
715411677aeSAaron LI if (optlen < 4) {
716*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
717411677aeSAaron LI break;
718411677aeSAaron LI }
719411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
720411677aeSAaron LI while (tp < cp + sizeof(*dh6o) + optlen - 4) {
721*ed775ee7SAntonio Huete Jimenez subopt_code = GET_BE_U_2(tp);
722411677aeSAaron LI tp += 2;
723*ed775ee7SAntonio Huete Jimenez subopt_len = GET_BE_U_2(tp);
724411677aeSAaron LI tp += 2;
725411677aeSAaron LI if (tp + subopt_len > cp + sizeof(*dh6o) + optlen)
726411677aeSAaron LI goto trunc;
727*ed775ee7SAntonio Huete Jimenez ND_PRINT(" subopt:%u", subopt_code);
728411677aeSAaron LI switch (subopt_code) {
729411677aeSAaron LI case DH6OPT_NTP_SUBOPTION_SRV_ADDR:
730411677aeSAaron LI case DH6OPT_NTP_SUBOPTION_MC_ADDR:
731411677aeSAaron LI if (subopt_len != 16) {
732*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?");
733411677aeSAaron LI break;
734411677aeSAaron LI }
735*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s", GET_IP6ADDR_STRING(tp));
736411677aeSAaron LI break;
737411677aeSAaron LI case DH6OPT_NTP_SUBOPTION_SRV_FQDN:
738*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ");
739*ed775ee7SAntonio Huete Jimenez if (fqdn_print(ndo, tp, tp + subopt_len) == NULL)
740411677aeSAaron LI goto trunc;
741ea7b4bf5SPeter Avalos break;
74241c99275SPeter Avalos default:
743*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?");
744411677aeSAaron LI break;
745411677aeSAaron LI }
746411677aeSAaron LI tp += subopt_len;
747411677aeSAaron LI }
748*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
749411677aeSAaron LI break;
750411677aeSAaron LI case DH6OPT_AFTR_NAME:
751411677aeSAaron LI if (optlen < 3) {
752*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
753411677aeSAaron LI break;
754411677aeSAaron LI }
755411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
756411677aeSAaron LI remain_len = optlen;
757*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ");
758411677aeSAaron LI /* Encoding is described in section 3.1 of RFC 1035 */
759*ed775ee7SAntonio Huete Jimenez while (remain_len && GET_U_1(tp)) {
760*ed775ee7SAntonio Huete Jimenez label_len = GET_U_1(tp);
761*ed775ee7SAntonio Huete Jimenez tp++;
762411677aeSAaron LI if (label_len < remain_len - 1) {
763*ed775ee7SAntonio Huete Jimenez nd_printjnp(ndo, tp, label_len);
764411677aeSAaron LI tp += label_len;
765411677aeSAaron LI remain_len -= (label_len + 1);
766*ed775ee7SAntonio Huete Jimenez if(GET_U_1(tp)) ND_PRINT(".");
767411677aeSAaron LI } else {
768*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?");
769411677aeSAaron LI break;
770411677aeSAaron LI }
771411677aeSAaron LI }
772*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
773411677aeSAaron LI break;
774411677aeSAaron LI case DH6OPT_NEW_POSIX_TIMEZONE: /* all three of these options */
775411677aeSAaron LI case DH6OPT_NEW_TZDB_TIMEZONE: /* are encoded similarly */
776411677aeSAaron LI case DH6OPT_MUDURL: /* although GMT might not work */
777411677aeSAaron LI if (optlen < 5) {
778*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ?)");
779411677aeSAaron LI break;
780411677aeSAaron LI }
781411677aeSAaron LI tp = (const u_char *)(dh6o + 1);
782*ed775ee7SAntonio Huete Jimenez ND_PRINT(" ");
783*ed775ee7SAntonio Huete Jimenez nd_printjnp(ndo, tp, optlen);
784*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
785411677aeSAaron LI break;
786411677aeSAaron LI
787411677aeSAaron LI default:
788*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
78941c99275SPeter Avalos break;
79041c99275SPeter Avalos }
79141c99275SPeter Avalos
79241c99275SPeter Avalos cp += sizeof(*dh6o) + optlen;
79341c99275SPeter Avalos }
79441c99275SPeter Avalos return;
79541c99275SPeter Avalos
79641c99275SPeter Avalos trunc:
797*ed775ee7SAntonio Huete Jimenez nd_print_trunc(ndo);
79841c99275SPeter Avalos }
79941c99275SPeter Avalos
80041c99275SPeter Avalos /*
80141c99275SPeter Avalos * Print dhcp6 packets
80241c99275SPeter Avalos */
80341c99275SPeter Avalos void
dhcp6_print(netdissect_options * ndo,const u_char * cp,u_int length)804411677aeSAaron LI dhcp6_print(netdissect_options *ndo,
805411677aeSAaron LI const u_char *cp, u_int length)
80641c99275SPeter Avalos {
807411677aeSAaron LI const struct dhcp6 *dh6;
808411677aeSAaron LI const struct dhcp6_relay *dh6relay;
809*ed775ee7SAntonio Huete Jimenez uint8_t msgtype;
81041c99275SPeter Avalos const u_char *ep;
811411677aeSAaron LI const u_char *extp;
81241c99275SPeter Avalos const char *name;
81341c99275SPeter Avalos
814*ed775ee7SAntonio Huete Jimenez ndo->ndo_protocol = "dhcp6";
815*ed775ee7SAntonio Huete Jimenez ND_PRINT("dhcp6");
81641c99275SPeter Avalos
817*ed775ee7SAntonio Huete Jimenez ep = ndo->ndo_snapend;
81841c99275SPeter Avalos if (cp + length < ep)
81941c99275SPeter Avalos ep = cp + length;
82041c99275SPeter Avalos
821411677aeSAaron LI dh6 = (const struct dhcp6 *)cp;
822411677aeSAaron LI dh6relay = (const struct dhcp6_relay *)cp;
823*ed775ee7SAntonio Huete Jimenez ND_TCHECK_4(dh6->dh6_msgtypexid.xid);
824*ed775ee7SAntonio Huete Jimenez msgtype = GET_U_1(dh6->dh6_msgtypexid.msgtype);
825*ed775ee7SAntonio Huete Jimenez name = tok2str(dh6_msgtype_str, "msgtype-%u", msgtype);
82641c99275SPeter Avalos
827411677aeSAaron LI if (!ndo->ndo_vflag) {
828*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s", name);
82941c99275SPeter Avalos return;
83041c99275SPeter Avalos }
83141c99275SPeter Avalos
83241c99275SPeter Avalos /* XXX relay agent messages have to be handled differently */
83341c99275SPeter Avalos
834*ed775ee7SAntonio Huete Jimenez ND_PRINT(" %s (", name); /*)*/
835*ed775ee7SAntonio Huete Jimenez if (msgtype != DH6_RELAY_FORW && msgtype != DH6_RELAY_REPLY) {
836*ed775ee7SAntonio Huete Jimenez ND_PRINT("xid=%x",
837*ed775ee7SAntonio Huete Jimenez GET_BE_U_4(dh6->dh6_msgtypexid.xid) & DH6_XIDMASK);
838411677aeSAaron LI extp = (const u_char *)(dh6 + 1);
839411677aeSAaron LI dhcp6opt_print(ndo, extp, ep);
84041c99275SPeter Avalos } else { /* relay messages */
841*ed775ee7SAntonio Huete Jimenez ND_PRINT("linkaddr=%s", GET_IP6ADDR_STRING(dh6relay->dh6relay_linkaddr));
84241c99275SPeter Avalos
843*ed775ee7SAntonio Huete Jimenez ND_PRINT(" peeraddr=%s", GET_IP6ADDR_STRING(dh6relay->dh6relay_peeraddr));
84441c99275SPeter Avalos
845411677aeSAaron LI dhcp6opt_print(ndo, (const u_char *)(dh6relay + 1), ep);
84641c99275SPeter Avalos }
84741c99275SPeter Avalos /*(*/
848*ed775ee7SAntonio Huete Jimenez ND_PRINT(")");
84941c99275SPeter Avalos return;
85041c99275SPeter Avalos
85141c99275SPeter Avalos trunc:
852*ed775ee7SAntonio Huete Jimenez nd_print_trunc(ndo);
85341c99275SPeter Avalos }
854