The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 1998 and 1999 WIDE Project. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. Neither the name of the project nor the names of its contributors |
| 14 | * may be used to endorse or promote products derived from this software |
| 15 | * without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | /* |
| 30 | * RFC3315: DHCPv6 |
| 31 | * supported DHCPv6 options: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 32 | * RFC3319: Session Initiation Protocol (SIP) Servers options, |
| 33 | * RFC3633: IPv6 Prefix options, |
| 34 | * RFC3646: DNS Configuration options, |
| 35 | * RFC3898: Network Information Service (NIS) Configuration options, |
| 36 | * RFC4075: Simple Network Time Protocol (SNTP) Configuration option, |
| 37 | * RFC4242: Information Refresh Time option, |
| 38 | * RFC4280: Broadcast and Multicast Control Servers options, |
| 39 | * RFC5908: Network Time Protocol (NTP) Server Option for DHCPv6 |
| 40 | * RFC6334: Dual-Stack Lite option, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 41 | */ |
| 42 | |
| 43 | #ifndef lint |
| 44 | static const char rcsid[] _U_ = |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 45 | "@(#) $Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.37 2008-02-06 10:26:09 guy Exp $"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 46 | #endif |
| 47 | |
| 48 | #ifdef HAVE_CONFIG_H |
| 49 | #include "config.h" |
| 50 | #endif |
| 51 | |
| 52 | #include <tcpdump-stdinc.h> |
| 53 | |
| 54 | #include <stdio.h> |
| 55 | #include <string.h> |
| 56 | |
| 57 | #include "interface.h" |
| 58 | #include "addrtoname.h" |
| 59 | #include "extract.h" |
| 60 | |
| 61 | /* lease duration */ |
| 62 | #define DHCP6_DURATITION_INFINITE 0xffffffff |
| 63 | |
| 64 | /* Error Values */ |
| 65 | #define DH6ERR_FAILURE 16 |
| 66 | #define DH6ERR_AUTHFAIL 17 |
| 67 | #define DH6ERR_POORLYFORMED 18 |
| 68 | #define DH6ERR_UNAVAIL 19 |
| 69 | #define DH6ERR_OPTUNAVAIL 20 |
| 70 | |
| 71 | /* Message type */ |
| 72 | #define DH6_SOLICIT 1 |
| 73 | #define DH6_ADVERTISE 2 |
| 74 | #define DH6_REQUEST 3 |
| 75 | #define DH6_CONFIRM 4 |
| 76 | #define DH6_RENEW 5 |
| 77 | #define DH6_REBIND 6 |
| 78 | #define DH6_REPLY 7 |
| 79 | #define DH6_RELEASE 8 |
| 80 | #define DH6_DECLINE 9 |
| 81 | #define DH6_RECONFIGURE 10 |
| 82 | #define DH6_INFORM_REQ 11 |
| 83 | #define DH6_RELAY_FORW 12 |
| 84 | #define DH6_RELAY_REPLY 13 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 85 | #define DH6_LEASEQUERY 14 |
| 86 | #define DH6_LQ_REPLY 15 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 87 | |
| 88 | /* DHCP6 base packet format */ |
| 89 | struct dhcp6 { |
| 90 | union { |
| 91 | u_int8_t m; |
| 92 | u_int32_t x; |
| 93 | } dh6_msgtypexid; |
| 94 | /* options follow */ |
| 95 | }; |
| 96 | #define dh6_msgtype dh6_msgtypexid.m |
| 97 | #define dh6_xid dh6_msgtypexid.x |
| 98 | #define DH6_XIDMASK 0x00ffffff |
| 99 | |
| 100 | /* DHCPv6 relay messages */ |
| 101 | struct dhcp6_relay { |
| 102 | u_int8_t dh6relay_msgtype; |
| 103 | u_int8_t dh6relay_hcnt; |
| 104 | u_int8_t dh6relay_linkaddr[16]; /* XXX: badly aligned */ |
| 105 | u_int8_t dh6relay_peeraddr[16]; |
| 106 | /* options follow */ |
| 107 | }; |
| 108 | |
| 109 | /* options */ |
| 110 | #define DH6OPT_CLIENTID 1 |
| 111 | #define DH6OPT_SERVERID 2 |
| 112 | #define DH6OPT_IA_NA 3 |
| 113 | #define DH6OPT_IA_TA 4 |
| 114 | #define DH6OPT_IA_ADDR 5 |
| 115 | #define DH6OPT_ORO 6 |
| 116 | #define DH6OPT_PREFERENCE 7 |
| 117 | # define DH6OPT_PREF_MAX 255 |
| 118 | #define DH6OPT_ELAPSED_TIME 8 |
| 119 | #define DH6OPT_RELAY_MSG 9 |
| 120 | /*#define DH6OPT_SERVER_MSG 10 deprecated */ |
| 121 | #define DH6OPT_AUTH 11 |
| 122 | # define DH6OPT_AUTHPROTO_DELAYED 2 |
| 123 | # define DH6OPT_AUTHPROTO_RECONFIG 3 |
| 124 | # define DH6OPT_AUTHALG_HMACMD5 1 |
| 125 | # define DH6OPT_AUTHRDM_MONOCOUNTER 0 |
| 126 | # define DH6OPT_AUTHRECONFIG_KEY 1 |
| 127 | # define DH6OPT_AUTHRECONFIG_HMACMD5 2 |
| 128 | #define DH6OPT_UNICAST 12 |
| 129 | #define DH6OPT_STATUS_CODE 13 |
| 130 | # define DH6OPT_STCODE_SUCCESS 0 |
| 131 | # define DH6OPT_STCODE_UNSPECFAIL 1 |
| 132 | # define DH6OPT_STCODE_NOADDRAVAIL 2 |
| 133 | # define DH6OPT_STCODE_NOBINDING 3 |
| 134 | # define DH6OPT_STCODE_NOTONLINK 4 |
| 135 | # define DH6OPT_STCODE_USEMULTICAST 5 |
| 136 | # define DH6OPT_STCODE_NOPREFIXAVAIL 6 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 137 | # define DH6OPT_STCODE_UNKNOWNQUERYTYPE 7 |
| 138 | # define DH6OPT_STCODE_MALFORMEDQUERY 8 |
| 139 | # define DH6OPT_STCODE_NOTCONFIGURED 9 |
| 140 | # define DH6OPT_STCODE_NOTALLOWED 10 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 141 | #define DH6OPT_RAPID_COMMIT 14 |
| 142 | #define DH6OPT_USER_CLASS 15 |
| 143 | #define DH6OPT_VENDOR_CLASS 16 |
| 144 | #define DH6OPT_VENDOR_OPTS 17 |
| 145 | #define DH6OPT_INTERFACE_ID 18 |
| 146 | #define DH6OPT_RECONF_MSG 19 |
| 147 | #define DH6OPT_RECONF_ACCEPT 20 |
| 148 | #define DH6OPT_SIP_SERVER_D 21 |
| 149 | #define DH6OPT_SIP_SERVER_A 22 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 150 | #define DH6OPT_DNS_SERVERS 23 |
| 151 | #define DH6OPT_DOMAIN_LIST 24 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 152 | #define DH6OPT_IA_PD 25 |
| 153 | #define DH6OPT_IA_PD_PREFIX 26 |
| 154 | #define DH6OPT_NIS_SERVERS 27 |
| 155 | #define DH6OPT_NISP_SERVERS 28 |
| 156 | #define DH6OPT_NIS_NAME 29 |
| 157 | #define DH6OPT_NISP_NAME 30 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 158 | #define DH6OPT_SNTP_SERVERS 31 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 159 | #define DH6OPT_LIFETIME 32 |
| 160 | #define DH6OPT_BCMCS_SERVER_D 33 |
| 161 | #define DH6OPT_BCMCS_SERVER_A 34 |
| 162 | #define DH6OPT_GEOCONF_CIVIC 36 |
| 163 | #define DH6OPT_REMOTE_ID 37 |
| 164 | #define DH6OPT_SUBSCRIBER_ID 38 |
| 165 | #define DH6OPT_CLIENT_FQDN 39 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 166 | #define DH6OPT_PANA_AGENT 40 |
| 167 | #define DH6OPT_NEW_POSIX_TIMEZONE 41 |
| 168 | #define DH6OPT_NEW_TZDB_TIMEZONE 42 |
| 169 | #define DH6OPT_ERO 43 |
| 170 | #define DH6OPT_LQ_QUERY 44 |
| 171 | #define DH6OPT_CLIENT_DATA 45 |
| 172 | #define DH6OPT_CLT_TIME 46 |
| 173 | #define DH6OPT_LQ_RELAY_DATA 47 |
| 174 | #define DH6OPT_LQ_CLIENT_LINK 48 |
| 175 | #define DH6OPT_NTP_SERVER 56 |
| 176 | # define DH6OPT_NTP_SUBOPTION_SRV_ADDR 1 |
| 177 | # define DH6OPT_NTP_SUBOPTION_MC_ADDR 2 |
| 178 | # define DH6OPT_NTP_SUBOPTION_SRV_FQDN 3 |
| 179 | #define DH6OPT_AFTR_NAME 64 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 180 | |
| 181 | struct dhcp6opt { |
| 182 | u_int16_t dh6opt_type; |
| 183 | u_int16_t dh6opt_len; |
| 184 | /* type-dependent data follows */ |
| 185 | }; |
| 186 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 187 | static const char * |
| 188 | dhcp6opt_name(int type) |
| 189 | { |
| 190 | static char genstr[sizeof("opt_65535") + 1]; /* XXX thread unsafe */ |
| 191 | |
| 192 | if (type > 65535) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 193 | return "INVALID-option"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 194 | |
| 195 | switch(type) { |
| 196 | case DH6OPT_CLIENTID: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 197 | return "client-ID"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 198 | case DH6OPT_SERVERID: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 199 | return "server-ID"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 200 | case DH6OPT_IA_NA: |
| 201 | return "IA_NA"; |
| 202 | case DH6OPT_IA_TA: |
| 203 | return "IA_TA"; |
| 204 | case DH6OPT_IA_ADDR: |
| 205 | return "IA_ADDR"; |
| 206 | case DH6OPT_ORO: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 207 | return "option-request"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 208 | case DH6OPT_PREFERENCE: |
| 209 | return "preference"; |
| 210 | case DH6OPT_ELAPSED_TIME: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 211 | return "elapsed-time"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 212 | case DH6OPT_RELAY_MSG: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 213 | return "relay-message"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 214 | case DH6OPT_AUTH: |
| 215 | return "authentication"; |
| 216 | case DH6OPT_UNICAST: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 217 | return "server-unicast"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 218 | case DH6OPT_STATUS_CODE: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 219 | return "status-code"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 220 | case DH6OPT_RAPID_COMMIT: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 221 | return "rapid-commit"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 222 | case DH6OPT_USER_CLASS: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 223 | return "user-class"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 224 | case DH6OPT_VENDOR_CLASS: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 225 | return "vendor-class"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 226 | case DH6OPT_VENDOR_OPTS: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 227 | return "vendor-specific-info"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 228 | case DH6OPT_INTERFACE_ID: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 229 | return "interface-ID"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 230 | case DH6OPT_RECONF_MSG: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 231 | return "reconfigure-message"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 232 | case DH6OPT_RECONF_ACCEPT: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 233 | return "reconfigure-accept"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 234 | case DH6OPT_SIP_SERVER_D: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 235 | return "SIP-servers-domain"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 236 | case DH6OPT_SIP_SERVER_A: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 237 | return "SIP-servers-address"; |
| 238 | case DH6OPT_DNS_SERVERS: |
| 239 | return "DNS-server"; |
| 240 | case DH6OPT_DOMAIN_LIST: |
| 241 | return "DNS-search-list"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 242 | case DH6OPT_IA_PD: |
| 243 | return "IA_PD"; |
| 244 | case DH6OPT_IA_PD_PREFIX: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 245 | return "IA_PD-prefix"; |
| 246 | case DH6OPT_SNTP_SERVERS: |
| 247 | return "SNTP-servers"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 248 | case DH6OPT_LIFETIME: |
| 249 | return "lifetime"; |
| 250 | case DH6OPT_NIS_SERVERS: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 251 | return "NIS-server"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 252 | case DH6OPT_NISP_SERVERS: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 253 | return "NIS+-server"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 254 | case DH6OPT_NIS_NAME: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 255 | return "NIS-domain-name"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 256 | case DH6OPT_NISP_NAME: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 257 | return "NIS+-domain-name"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 258 | case DH6OPT_BCMCS_SERVER_D: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 259 | return "BCMCS-domain-name"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 260 | case DH6OPT_BCMCS_SERVER_A: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 261 | return "BCMCS-server"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 262 | case DH6OPT_GEOCONF_CIVIC: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 263 | return "Geoconf-Civic"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 264 | case DH6OPT_REMOTE_ID: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 265 | return "Remote-ID"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 266 | case DH6OPT_SUBSCRIBER_ID: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 267 | return "Subscriber-ID"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 268 | case DH6OPT_CLIENT_FQDN: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 269 | return "Client-FQDN"; |
| 270 | case DH6OPT_PANA_AGENT: |
| 271 | return "PANA-agent"; |
| 272 | case DH6OPT_NEW_POSIX_TIMEZONE: |
| 273 | return "POSIX-timezone"; |
| 274 | case DH6OPT_NEW_TZDB_TIMEZONE: |
| 275 | return "POSIX-tz-database"; |
| 276 | case DH6OPT_ERO: |
| 277 | return "Echo-request-option"; |
| 278 | case DH6OPT_LQ_QUERY: |
| 279 | return "Lease-query"; |
| 280 | case DH6OPT_CLIENT_DATA: |
| 281 | return "LQ-client-data"; |
| 282 | case DH6OPT_CLT_TIME: |
| 283 | return "Clt-time"; |
| 284 | case DH6OPT_LQ_RELAY_DATA: |
| 285 | return "LQ-relay-data"; |
| 286 | case DH6OPT_LQ_CLIENT_LINK: |
| 287 | return "LQ-client-link"; |
| 288 | case DH6OPT_NTP_SERVER: |
| 289 | return "NTP-server"; |
| 290 | case DH6OPT_AFTR_NAME: |
| 291 | return "AFTR-Name"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 292 | default: |
| 293 | snprintf(genstr, sizeof(genstr), "opt_%d", type); |
| 294 | return(genstr); |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | static const char * |
| 299 | dhcp6stcode(int code) |
| 300 | { |
| 301 | static char genstr[sizeof("code255") + 1]; /* XXX thread unsafe */ |
| 302 | |
| 303 | if (code > 255) |
| 304 | return "INVALID code"; |
| 305 | |
| 306 | switch(code) { |
| 307 | case DH6OPT_STCODE_SUCCESS: |
| 308 | return "success"; |
| 309 | case DH6OPT_STCODE_UNSPECFAIL: |
| 310 | return "unspec failure"; |
| 311 | case DH6OPT_STCODE_NOADDRAVAIL: |
| 312 | return "no addresses"; |
| 313 | case DH6OPT_STCODE_NOBINDING: |
| 314 | return "no binding"; |
| 315 | case DH6OPT_STCODE_NOTONLINK: |
| 316 | return "not on-link"; |
| 317 | case DH6OPT_STCODE_USEMULTICAST: |
| 318 | return "use multicast"; |
| 319 | case DH6OPT_STCODE_NOPREFIXAVAIL: |
| 320 | return "no prefixes"; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 321 | case DH6OPT_STCODE_UNKNOWNQUERYTYPE: |
| 322 | return "unknown query type"; |
| 323 | case DH6OPT_STCODE_MALFORMEDQUERY: |
| 324 | return "malformed query"; |
| 325 | case DH6OPT_STCODE_NOTCONFIGURED: |
| 326 | return "not configured"; |
| 327 | case DH6OPT_STCODE_NOTALLOWED: |
| 328 | return "not allowed"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 329 | default: |
| 330 | snprintf(genstr, sizeof(genstr), "code%d", code); |
| 331 | return(genstr); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | static void |
| 336 | dhcp6opt_print(const u_char *cp, const u_char *ep) |
| 337 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 338 | const struct dhcp6opt *dh6o; |
| 339 | const u_char *tp; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 340 | size_t i; |
| 341 | u_int16_t opttype; |
| 342 | size_t optlen; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 343 | u_int8_t auth_proto; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 344 | u_int authinfolen, authrealmlen; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 345 | int remain_len; /* Length of remaining options */ |
| 346 | int label_len; /* Label length */ |
| 347 | u_int16_t subopt_code; |
| 348 | u_int16_t subopt_len; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 349 | |
| 350 | if (cp == ep) |
| 351 | return; |
| 352 | while (cp < ep) { |
| 353 | if (ep < cp + sizeof(*dh6o)) |
| 354 | goto trunc; |
| 355 | dh6o = (struct dhcp6opt *)cp; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 356 | TCHECK(*dh6o); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 357 | optlen = EXTRACT_16BITS(&dh6o->dh6opt_len); |
| 358 | if (ep < cp + sizeof(*dh6o) + optlen) |
| 359 | goto trunc; |
| 360 | opttype = EXTRACT_16BITS(&dh6o->dh6opt_type); |
| 361 | printf(" (%s", dhcp6opt_name(opttype)); |
| 362 | switch (opttype) { |
| 363 | case DH6OPT_CLIENTID: |
| 364 | case DH6OPT_SERVERID: |
| 365 | if (optlen < 2) { |
| 366 | /*(*/ |
| 367 | printf(" ?)"); |
| 368 | break; |
| 369 | } |
| 370 | tp = (u_char *)(dh6o + 1); |
| 371 | switch (EXTRACT_16BITS(tp)) { |
| 372 | case 1: |
| 373 | if (optlen >= 2 + 6) { |
| 374 | printf(" hwaddr/time type %u time %u ", |
| 375 | EXTRACT_16BITS(&tp[2]), |
| 376 | EXTRACT_32BITS(&tp[4])); |
| 377 | for (i = 8; i < optlen; i++) |
| 378 | printf("%02x", tp[i]); |
| 379 | /*(*/ |
| 380 | printf(")"); |
| 381 | } else { |
| 382 | /*(*/ |
| 383 | printf(" ?)"); |
| 384 | } |
| 385 | break; |
| 386 | case 2: |
| 387 | if (optlen >= 2 + 8) { |
| 388 | printf(" vid "); |
| 389 | for (i = 2; i < 2 + 8; i++) |
| 390 | printf("%02x", tp[i]); |
| 391 | /*(*/ |
| 392 | printf(")"); |
| 393 | } else { |
| 394 | /*(*/ |
| 395 | printf(" ?)"); |
| 396 | } |
| 397 | break; |
| 398 | case 3: |
| 399 | if (optlen >= 2 + 2) { |
| 400 | printf(" hwaddr type %u ", |
| 401 | EXTRACT_16BITS(&tp[2])); |
| 402 | for (i = 4; i < optlen; i++) |
| 403 | printf("%02x", tp[i]); |
| 404 | /*(*/ |
| 405 | printf(")"); |
| 406 | } else { |
| 407 | /*(*/ |
| 408 | printf(" ?)"); |
| 409 | } |
| 410 | break; |
| 411 | default: |
| 412 | printf(" type %d)", EXTRACT_16BITS(tp)); |
| 413 | break; |
| 414 | } |
| 415 | break; |
| 416 | case DH6OPT_IA_ADDR: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 417 | if (optlen < 24) { |
| 418 | /*(*/ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 419 | printf(" ?)"); |
| 420 | break; |
| 421 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 422 | tp = (u_char *)(dh6o + 1); |
| 423 | printf(" %s", ip6addr_string(&tp[0])); |
| 424 | printf(" pltime:%u vltime:%u", |
| 425 | EXTRACT_32BITS(&tp[16]), |
| 426 | EXTRACT_32BITS(&tp[20])); |
| 427 | if (optlen > 24) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 428 | /* there are sub-options */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 429 | dhcp6opt_print(tp + 24, tp + optlen); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 430 | } |
| 431 | printf(")"); |
| 432 | break; |
| 433 | case DH6OPT_ORO: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 434 | case DH6OPT_ERO: |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 435 | if (optlen % 2) { |
| 436 | printf(" ?)"); |
| 437 | break; |
| 438 | } |
| 439 | tp = (u_char *)(dh6o + 1); |
| 440 | for (i = 0; i < optlen; i += 2) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 441 | printf(" %s", |
| 442 | dhcp6opt_name(EXTRACT_16BITS(&tp[i]))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 443 | } |
| 444 | printf(")"); |
| 445 | break; |
| 446 | case DH6OPT_PREFERENCE: |
| 447 | if (optlen != 1) { |
| 448 | printf(" ?)"); |
| 449 | break; |
| 450 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 451 | tp = (u_char *)(dh6o + 1); |
| 452 | printf(" %d)", *tp); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 453 | break; |
| 454 | case DH6OPT_ELAPSED_TIME: |
| 455 | if (optlen != 2) { |
| 456 | printf(" ?)"); |
| 457 | break; |
| 458 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 459 | tp = (u_char *)(dh6o + 1); |
| 460 | printf(" %d)", EXTRACT_16BITS(tp)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 461 | break; |
| 462 | case DH6OPT_RELAY_MSG: |
| 463 | printf(" ("); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 464 | tp = (u_char *)(dh6o + 1); |
| 465 | dhcp6_print(tp, optlen); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 466 | printf(")"); |
| 467 | break; |
| 468 | case DH6OPT_AUTH: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 469 | if (optlen < 11) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 470 | printf(" ?)"); |
| 471 | break; |
| 472 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 473 | tp = (u_char *)(dh6o + 1); |
| 474 | auth_proto = *tp; |
| 475 | switch (auth_proto) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 476 | case DH6OPT_AUTHPROTO_DELAYED: |
| 477 | printf(" proto: delayed"); |
| 478 | break; |
| 479 | case DH6OPT_AUTHPROTO_RECONFIG: |
| 480 | printf(" proto: reconfigure"); |
| 481 | break; |
| 482 | default: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 483 | printf(" proto: %d", auth_proto); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 484 | break; |
| 485 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 486 | tp++; |
| 487 | switch (*tp) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 488 | case DH6OPT_AUTHALG_HMACMD5: |
| 489 | /* XXX: may depend on the protocol */ |
| 490 | printf(", alg: HMAC-MD5"); |
| 491 | break; |
| 492 | default: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 493 | printf(", alg: %d", *tp); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 494 | break; |
| 495 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 496 | tp++; |
| 497 | switch (*tp) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 498 | case DH6OPT_AUTHRDM_MONOCOUNTER: |
| 499 | printf(", RDM: mono"); |
| 500 | break; |
| 501 | default: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 502 | printf(", RDM: %d", *tp); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 503 | break; |
| 504 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 505 | tp++; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 506 | printf(", RD:"); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 507 | for (i = 0; i < 4; i++, tp += 2) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 508 | printf(" %04x", EXTRACT_16BITS(tp)); |
| 509 | |
| 510 | /* protocol dependent part */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 511 | authinfolen = optlen - 11; |
| 512 | switch (auth_proto) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 513 | case DH6OPT_AUTHPROTO_DELAYED: |
| 514 | if (authinfolen == 0) |
| 515 | break; |
| 516 | if (authinfolen < 20) { |
| 517 | printf(" ??"); |
| 518 | break; |
| 519 | } |
| 520 | authrealmlen = authinfolen - 20; |
| 521 | if (authrealmlen > 0) { |
| 522 | printf(", realm: "); |
| 523 | } |
| 524 | for (i = 0; i < authrealmlen; i++, tp++) |
| 525 | printf("%02x", *tp); |
| 526 | printf(", key ID: %08x", EXTRACT_32BITS(tp)); |
| 527 | tp += 4; |
| 528 | printf(", HMAC-MD5:"); |
| 529 | for (i = 0; i < 4; i++, tp+= 4) |
| 530 | printf(" %08x", EXTRACT_32BITS(tp)); |
| 531 | break; |
| 532 | case DH6OPT_AUTHPROTO_RECONFIG: |
| 533 | if (authinfolen != 17) { |
| 534 | printf(" ??"); |
| 535 | break; |
| 536 | } |
| 537 | switch (*tp++) { |
| 538 | case DH6OPT_AUTHRECONFIG_KEY: |
| 539 | printf(" reconfig-key"); |
| 540 | break; |
| 541 | case DH6OPT_AUTHRECONFIG_HMACMD5: |
| 542 | printf(" type: HMAC-MD5"); |
| 543 | break; |
| 544 | default: |
| 545 | printf(" type: ??"); |
| 546 | break; |
| 547 | } |
| 548 | printf(" value:"); |
| 549 | for (i = 0; i < 4; i++, tp+= 4) |
| 550 | printf(" %08x", EXTRACT_32BITS(tp)); |
| 551 | break; |
| 552 | default: |
| 553 | printf(" ??"); |
| 554 | break; |
| 555 | } |
| 556 | |
| 557 | printf(")"); |
| 558 | break; |
| 559 | case DH6OPT_RAPID_COMMIT: /* nothing todo */ |
| 560 | printf(")"); |
| 561 | break; |
| 562 | case DH6OPT_INTERFACE_ID: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 563 | case DH6OPT_SUBSCRIBER_ID: |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 564 | /* |
| 565 | * Since we cannot predict the encoding, print hex dump |
| 566 | * at most 10 characters. |
| 567 | */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 568 | tp = (u_char *)(dh6o + 1); |
| 569 | printf(" "); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 570 | for (i = 0; i < optlen && i < 10; i++) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 571 | printf("%02x", tp[i]); |
| 572 | printf("...)"); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 573 | break; |
| 574 | case DH6OPT_RECONF_MSG: |
| 575 | tp = (u_char *)(dh6o + 1); |
| 576 | switch (*tp) { |
| 577 | case DH6_RENEW: |
| 578 | printf(" for renew)"); |
| 579 | break; |
| 580 | case DH6_INFORM_REQ: |
| 581 | printf(" for inf-req)"); |
| 582 | break; |
| 583 | default: |
| 584 | printf(" for ?\?\?(%02x))", *tp); |
| 585 | break; |
| 586 | } |
| 587 | break; |
| 588 | case DH6OPT_RECONF_ACCEPT: /* nothing todo */ |
| 589 | printf(")"); |
| 590 | break; |
| 591 | case DH6OPT_SIP_SERVER_A: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 592 | case DH6OPT_DNS_SERVERS: |
| 593 | case DH6OPT_SNTP_SERVERS: |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 594 | case DH6OPT_NIS_SERVERS: |
| 595 | case DH6OPT_NISP_SERVERS: |
| 596 | case DH6OPT_BCMCS_SERVER_A: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 597 | case DH6OPT_PANA_AGENT: |
| 598 | case DH6OPT_LQ_CLIENT_LINK: |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 599 | if (optlen % 16) { |
| 600 | printf(" ?)"); |
| 601 | break; |
| 602 | } |
| 603 | tp = (u_char *)(dh6o + 1); |
| 604 | for (i = 0; i < optlen; i += 16) |
| 605 | printf(" %s", ip6addr_string(&tp[i])); |
| 606 | printf(")"); |
| 607 | break; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 608 | case DH6OPT_SIP_SERVER_D: |
| 609 | case DH6OPT_DOMAIN_LIST: |
| 610 | tp = (u_char *)(dh6o + 1); |
| 611 | while (tp < cp + sizeof(*dh6o) + optlen) { |
| 612 | putchar(' '); |
| 613 | if ((tp = ns_nprint(tp, cp + sizeof(*dh6o) + optlen)) == NULL) |
| 614 | goto trunc; |
| 615 | } |
| 616 | printf(")"); |
| 617 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 618 | case DH6OPT_STATUS_CODE: |
| 619 | if (optlen < 2) { |
| 620 | printf(" ?)"); |
| 621 | break; |
| 622 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 623 | tp = (u_char *)(dh6o + 1); |
| 624 | printf(" %s)", dhcp6stcode(EXTRACT_16BITS(&tp[0]))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 625 | break; |
| 626 | case DH6OPT_IA_NA: |
| 627 | case DH6OPT_IA_PD: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 628 | if (optlen < 12) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 629 | printf(" ?)"); |
| 630 | break; |
| 631 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 632 | tp = (u_char *)(dh6o + 1); |
| 633 | printf(" IAID:%u T1:%u T2:%u", |
| 634 | EXTRACT_32BITS(&tp[0]), |
| 635 | EXTRACT_32BITS(&tp[4]), |
| 636 | EXTRACT_32BITS(&tp[8])); |
| 637 | if (optlen > 12) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 638 | /* there are sub-options */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 639 | dhcp6opt_print(tp + 12, tp + optlen); |
| 640 | } |
| 641 | printf(")"); |
| 642 | break; |
| 643 | case DH6OPT_IA_TA: |
| 644 | if (optlen < 4) { |
| 645 | printf(" ?)"); |
| 646 | break; |
| 647 | } |
| 648 | tp = (u_char *)(dh6o + 1); |
| 649 | printf(" IAID:%u", EXTRACT_32BITS(tp)); |
| 650 | if (optlen > 4) { |
| 651 | /* there are sub-options */ |
| 652 | dhcp6opt_print(tp + 4, tp + optlen); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 653 | } |
| 654 | printf(")"); |
| 655 | break; |
| 656 | case DH6OPT_IA_PD_PREFIX: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 657 | if (optlen < 25) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 658 | printf(" ?)"); |
| 659 | break; |
| 660 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 661 | tp = (u_char *)(dh6o + 1); |
| 662 | printf(" %s/%d", ip6addr_string(&tp[9]), tp[8]); |
| 663 | printf(" pltime:%u vltime:%u", |
| 664 | EXTRACT_32BITS(&tp[0]), |
| 665 | EXTRACT_32BITS(&tp[4])); |
| 666 | if (optlen > 25) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 667 | /* there are sub-options */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 668 | dhcp6opt_print(tp + 25, tp + optlen); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 669 | } |
| 670 | printf(")"); |
| 671 | break; |
| 672 | case DH6OPT_LIFETIME: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 673 | case DH6OPT_CLT_TIME: |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 674 | if (optlen != 4) { |
| 675 | printf(" ?)"); |
| 676 | break; |
| 677 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 678 | tp = (u_char *)(dh6o + 1); |
| 679 | printf(" %d)", EXTRACT_32BITS(tp)); |
| 680 | break; |
| 681 | case DH6OPT_REMOTE_ID: |
| 682 | if (optlen < 4) { |
| 683 | printf(" ?)"); |
| 684 | break; |
| 685 | } |
| 686 | tp = (u_char *)(dh6o + 1); |
| 687 | printf(" %d ", EXTRACT_32BITS(tp)); |
| 688 | /* |
| 689 | * Print hex dump first 10 characters. |
| 690 | */ |
| 691 | for (i = 4; i < optlen && i < 14; i++) |
| 692 | printf("%02x", tp[i]); |
| 693 | printf("...)"); |
| 694 | break; |
| 695 | case DH6OPT_LQ_QUERY: |
| 696 | if (optlen < 17) { |
| 697 | printf(" ?)"); |
| 698 | break; |
| 699 | } |
| 700 | tp = (u_char *)(dh6o + 1); |
| 701 | switch (*tp) { |
| 702 | case 1: |
| 703 | printf(" by-address"); |
| 704 | break; |
| 705 | case 2: |
| 706 | printf(" by-clientID"); |
| 707 | break; |
| 708 | default: |
| 709 | printf(" type_%d", (int)*tp); |
| 710 | break; |
| 711 | } |
| 712 | printf(" %s", ip6addr_string(&tp[1])); |
| 713 | if (optlen > 17) { |
| 714 | /* there are query-options */ |
| 715 | dhcp6opt_print(tp + 17, tp + optlen); |
| 716 | } |
| 717 | printf(")"); |
| 718 | break; |
| 719 | case DH6OPT_CLIENT_DATA: |
| 720 | tp = (u_char *)(dh6o + 1); |
| 721 | if (optlen > 0) { |
| 722 | /* there are encapsulated options */ |
| 723 | dhcp6opt_print(tp, tp + optlen); |
| 724 | } |
| 725 | printf(")"); |
| 726 | break; |
| 727 | case DH6OPT_LQ_RELAY_DATA: |
| 728 | if (optlen < 16) { |
| 729 | printf(" ?)"); |
| 730 | break; |
| 731 | } |
| 732 | tp = (u_char *)(dh6o + 1); |
| 733 | printf(" %s ", ip6addr_string(&tp[0])); |
| 734 | /* |
| 735 | * Print hex dump first 10 characters. |
| 736 | */ |
| 737 | for (i = 16; i < optlen && i < 26; i++) |
| 738 | printf("%02x", tp[i]); |
| 739 | printf("...)"); |
| 740 | break; |
| 741 | case DH6OPT_NTP_SERVER: |
| 742 | if (optlen < 4) { |
| 743 | printf(" ?)"); |
| 744 | break; |
| 745 | } |
| 746 | tp = (u_char *)(dh6o + 1); |
| 747 | while (tp < cp + sizeof(*dh6o) + optlen - 4) { |
| 748 | subopt_code = EXTRACT_16BITS(tp); |
| 749 | tp += 2; |
| 750 | subopt_len = EXTRACT_16BITS(tp); |
| 751 | tp += 2; |
| 752 | if (tp + subopt_len > cp + sizeof(*dh6o) + optlen) |
| 753 | goto trunc; |
| 754 | printf(" subopt:%d", subopt_code); |
| 755 | switch (subopt_code) { |
| 756 | case DH6OPT_NTP_SUBOPTION_SRV_ADDR: |
| 757 | case DH6OPT_NTP_SUBOPTION_MC_ADDR: |
| 758 | if (subopt_len != 16) { |
| 759 | printf(" ?"); |
| 760 | break; |
| 761 | } |
| 762 | printf(" %s", ip6addr_string(&tp[0])); |
| 763 | break; |
| 764 | case DH6OPT_NTP_SUBOPTION_SRV_FQDN: |
| 765 | putchar(' '); |
| 766 | if (ns_nprint(tp, tp + subopt_len) == NULL) |
| 767 | goto trunc; |
| 768 | break; |
| 769 | default: |
| 770 | printf(" ?"); |
| 771 | break; |
| 772 | } |
| 773 | tp += subopt_len; |
| 774 | } |
| 775 | printf(")"); |
| 776 | break; |
| 777 | case DH6OPT_AFTR_NAME: |
| 778 | if (optlen < 3) { |
| 779 | printf(" ?)"); |
| 780 | break; |
| 781 | } |
| 782 | tp = (u_char *)(dh6o + 1); |
| 783 | remain_len = optlen; |
| 784 | printf(" "); |
| 785 | /* Encoding is described in section 3.1 of RFC 1035 */ |
| 786 | while (remain_len && *tp) { |
| 787 | label_len = *tp++; |
| 788 | if (label_len < remain_len - 1) { |
| 789 | printf("%.*s", label_len, tp); |
| 790 | tp += label_len; |
| 791 | remain_len -= (label_len + 1); |
| 792 | if(*tp) printf("."); |
| 793 | } else { |
| 794 | printf(" ?"); |
| 795 | break; |
| 796 | } |
| 797 | } |
| 798 | printf(")"); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 799 | break; |
| 800 | default: |
| 801 | printf(")"); |
| 802 | break; |
| 803 | } |
| 804 | |
| 805 | cp += sizeof(*dh6o) + optlen; |
| 806 | } |
| 807 | return; |
| 808 | |
| 809 | trunc: |
| 810 | printf("[|dhcp6ext]"); |
| 811 | } |
| 812 | |
| 813 | /* |
| 814 | * Print dhcp6 packets |
| 815 | */ |
| 816 | void |
| 817 | dhcp6_print(const u_char *cp, u_int length) |
| 818 | { |
| 819 | struct dhcp6 *dh6; |
| 820 | struct dhcp6_relay *dh6relay; |
| 821 | const u_char *ep; |
| 822 | u_char *extp; |
| 823 | const char *name; |
| 824 | |
| 825 | printf("dhcp6"); |
| 826 | |
| 827 | ep = (u_char *)snapend; |
| 828 | if (cp + length < ep) |
| 829 | ep = cp + length; |
| 830 | |
| 831 | dh6 = (struct dhcp6 *)cp; |
| 832 | dh6relay = (struct dhcp6_relay *)cp; |
| 833 | TCHECK(dh6->dh6_xid); |
| 834 | switch (dh6->dh6_msgtype) { |
| 835 | case DH6_SOLICIT: |
| 836 | name = "solicit"; |
| 837 | break; |
| 838 | case DH6_ADVERTISE: |
| 839 | name = "advertise"; |
| 840 | break; |
| 841 | case DH6_REQUEST: |
| 842 | name = "request"; |
| 843 | break; |
| 844 | case DH6_CONFIRM: |
| 845 | name = "confirm"; |
| 846 | break; |
| 847 | case DH6_RENEW: |
| 848 | name = "renew"; |
| 849 | break; |
| 850 | case DH6_REBIND: |
| 851 | name = "rebind"; |
| 852 | break; |
| 853 | case DH6_REPLY: |
| 854 | name = "reply"; |
| 855 | break; |
| 856 | case DH6_RELEASE: |
| 857 | name = "release"; |
| 858 | break; |
| 859 | case DH6_DECLINE: |
| 860 | name = "decline"; |
| 861 | break; |
| 862 | case DH6_RECONFIGURE: |
| 863 | name = "reconfigure"; |
| 864 | break; |
| 865 | case DH6_INFORM_REQ: |
| 866 | name= "inf-req"; |
| 867 | break; |
| 868 | case DH6_RELAY_FORW: |
| 869 | name= "relay-fwd"; |
| 870 | break; |
| 871 | case DH6_RELAY_REPLY: |
| 872 | name= "relay-reply"; |
| 873 | break; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 874 | case DH6_LEASEQUERY: |
| 875 | name= "leasequery"; |
| 876 | break; |
| 877 | case DH6_LQ_REPLY: |
| 878 | name= "leasequery-reply"; |
| 879 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 880 | default: |
| 881 | name = NULL; |
| 882 | break; |
| 883 | } |
| 884 | |
| 885 | if (!vflag) { |
| 886 | if (name) |
| 887 | printf(" %s", name); |
| 888 | else if (dh6->dh6_msgtype != DH6_RELAY_FORW && |
| 889 | dh6->dh6_msgtype != DH6_RELAY_REPLY) { |
| 890 | printf(" msgtype-%u", dh6->dh6_msgtype); |
| 891 | } |
| 892 | return; |
| 893 | } |
| 894 | |
| 895 | /* XXX relay agent messages have to be handled differently */ |
| 896 | |
| 897 | if (name) |
| 898 | printf(" %s (", name); /*)*/ |
| 899 | else |
| 900 | printf(" msgtype-%u (", dh6->dh6_msgtype); /*)*/ |
| 901 | if (dh6->dh6_msgtype != DH6_RELAY_FORW && |
| 902 | dh6->dh6_msgtype != DH6_RELAY_REPLY) { |
| 903 | printf("xid=%x", EXTRACT_32BITS(&dh6->dh6_xid) & DH6_XIDMASK); |
| 904 | extp = (u_char *)(dh6 + 1); |
| 905 | dhcp6opt_print(extp, ep); |
| 906 | } else { /* relay messages */ |
| 907 | struct in6_addr addr6; |
| 908 | |
| 909 | TCHECK(dh6relay->dh6relay_peeraddr); |
| 910 | |
| 911 | memcpy(&addr6, dh6relay->dh6relay_linkaddr, sizeof (addr6)); |
| 912 | printf("linkaddr=%s", ip6addr_string(&addr6)); |
| 913 | |
| 914 | memcpy(&addr6, dh6relay->dh6relay_peeraddr, sizeof (addr6)); |
| 915 | printf(" peeraddr=%s", ip6addr_string(&addr6)); |
| 916 | |
| 917 | dhcp6opt_print((u_char *)(dh6relay + 1), ep); |
| 918 | } |
| 919 | /*(*/ |
| 920 | printf(")"); |
| 921 | return; |
| 922 | |
| 923 | trunc: |
| 924 | printf("[|dhcp6]"); |
| 925 | } |