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/* dhcp6.h
DHCPv6 Protocol structures... */
/*
* Copyright (C) 2006-2022 Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Internet Systems Consortium, Inc.
* PO Box 360
* Newmarket, NH 03857 USA
* <info@isc.org>
* https://www.isc.org/
*/
/* DHCPv6 Option codes: */
#define D6O_CLIENTID 1 /* RFC3315 */
#define D6O_SERVERID 2
#define D6O_IA_NA 3
#define D6O_IA_TA 4
#define D6O_IAADDR 5
#define D6O_ORO 6
#define D6O_PREFERENCE 7
#define D6O_ELAPSED_TIME 8
#define D6O_RELAY_MSG 9
/* Option code 10 unassigned. */
#define D6O_AUTH 11
#define D6O_UNICAST 12
#define D6O_STATUS_CODE 13
#define D6O_RAPID_COMMIT 14
#define D6O_USER_CLASS 15
#define D6O_VENDOR_CLASS 16
#define D6O_VENDOR_OPTS 17
#define D6O_INTERFACE_ID 18
#define D6O_RECONF_MSG 19
#define D6O_RECONF_ACCEPT 20
#define D6O_SIP_SERVERS_DNS 21 /* RFC3319 */
#define D6O_SIP_SERVERS_ADDR 22 /* RFC3319 */
#define D6O_NAME_SERVERS 23 /* RFC3646 */
#define D6O_DOMAIN_SEARCH 24 /* RFC3646 */
#define D6O_IA_PD 25 /* RFC3633 */
#define D6O_IAPREFIX 26 /* RFC3633 */
#define D6O_NIS_SERVERS 27 /* RFC3898 */
#define D6O_NISP_SERVERS 28 /* RFC3898 */
#define D6O_NIS_DOMAIN_NAME 29 /* RFC3898 */
#define D6O_NISP_DOMAIN_NAME 30 /* RFC3898 */
#define D6O_SNTP_SERVERS 31 /* RFC4075 */
#define D6O_INFORMATION_REFRESH_TIME 32 /* RFC4242 */
#define D6O_BCMCS_SERVER_D 33 /* RFC4280 */
#define D6O_BCMCS_SERVER_A 34 /* RFC4280 */
/* 35 is unassigned */
#define D6O_GEOCONF_CIVIC 36 /* RFC4776 */
#define D6O_REMOTE_ID 37 /* RFC4649 */
#define D6O_SUBSCRIBER_ID 38 /* RFC4580 */
#define D6O_CLIENT_FQDN 39 /* RFC4704 */
#define D6O_PANA_AGENT 40 /* paa-option */
#define D6O_NEW_POSIX_TIMEZONE 41 /* RFC4833 */
#define D6O_NEW_TZDB_TIMEZONE 42 /* RFC4833 */
#define D6O_ERO 43 /* RFC4994 */
#define D6O_LQ_QUERY 44 /* RFC5007 */
#define D6O_CLIENT_DATA 45 /* RFC5007 */
#define D6O_CLT_TIME 46 /* RFC5007 */
#define D6O_LQ_RELAY_DATA 47 /* RFC5007 */
#define D6O_LQ_CLIENT_LINK 48 /* RFC5007 */
#define D6O_MIP6_HNIDF 49 /* RFC6610 */
#define D6O_MIP6_VDINF 50 /* RFC6610 */
#define D6O_V6_LOST 51 /* RFC5223 */
#define D6O_CAPWAP_AC_V6 52 /* RFC5417 */
#define D6O_RELAY_ID 53 /* RFC5460 */
#define D6O_IPV6_ADDRESS_MOS 54 /* RFC5678 */
#define D6O_IPV6_FQDN_MOS 55 /* RFC5678 */
#define D6O_NTP_SERVER 56 /* RFC5908 */
#define D6O_V6_ACCESS_DOMAIN 57 /* RFC5986 */
#define D6O_SIP_UA_CS_LIST 58 /* RFC6011 */
#define D6O_BOOTFILE_URL 59 /* RFC5970 */
#define D6O_BOOTFILE_PARAM 60 /* RFC5970 */
#define D6O_CLIENT_ARCH_TYPE 61 /* RFC5970 */
#define D6O_NII 62 /* RFC5970 */
#define D6O_GEOLOCATION 63 /* RFC6225 */
#define D6O_AFTR_NAME 64 /* RFC6334 */
#define D6O_ERP_LOCAL_DOMAIN_NAME 65 /* RFC6440 */
#define D6O_RSOO 66 /* RFC6422 */
#define D6O_PD_EXCLUDE 67 /* RFC6603 */
#define D6O_VSS 68 /* RFC6607 */
#define D6O_MIP6_IDINF 69 /* RFC6610 */
#define D6O_MIP6_UDINF 70 /* RFC6610 */
#define D6O_MIP6_HNP 71 /* RFC6610 */
#define D6O_MIP6_HAA 72 /* RFC6610 */
#define D6O_MIP6_HAF 73 /* RFC6610 */
#define D6O_RDNSS_SELECTION 74 /* RFC6731 */
#define D6O_KRB_PRINCIPAL_NAME 75 /* RFC6784 */
#define D6O_KRB_REALM_NAME 76 /* RFC6784 */
#define D6O_KRB_DEFAULT_REALM_NAME 77 /* RFC6784 */
#define D6O_KRB_KDC 78 /* RFC6784 */
#define D6O_CLIENT_LINKLAYER_ADDR 79 /* RFC6939 */
#define D6O_LINK_ADDRESS 80 /* RFC6977 */
#define D6O_RADIUS 81 /* RFC7037 */
#define D6O_SOL_MAX_RT 82 /* RFC7083 */
#define D6O_INF_MAX_RT 83 /* RFC7083 */
#define D6O_ADDRSEL 84 /* RFC7078 */
#define D6O_ADDRSEL_TABLE 85 /* RFC7078 */
#define D6O_V6_PCP_SERVER 86 /* RFC7291 */
#define D6O_DHCPV4_MSG 87 /* RFC7341 */
#define D6O_DHCP4_O_DHCP6_SERVER 88 /* RFC7341 */
/* not yet assigned but next free value */
#define D6O_RELAY_SOURCE_PORT 135 /* I-D */
/*
* Status Codes, from RFC 3315 section 24.4, and RFC 3633, 5007, 5460.
*/
#define STATUS_Success 0
#define STATUS_UnspecFail 1
#define STATUS_NoAddrsAvail 2
#define STATUS_NoBinding 3
#define STATUS_NotOnLink 4
#define STATUS_UseMulticast 5
#define STATUS_NoPrefixAvail 6
#define STATUS_UnknownQueryType 7
#define STATUS_MalformedQuery 8
#define STATUS_NotConfigured 9
#define STATUS_NotAllowed 10
#define STATUS_QueryTerminated 11
/*
* DHCPv6 message types, defined in section 5.3 of RFC 3315
*/
#define DHCPV6_SOLICIT 1
#define DHCPV6_ADVERTISE 2
#define DHCPV6_REQUEST 3
#define DHCPV6_CONFIRM 4
#define DHCPV6_RENEW 5
#define DHCPV6_REBIND 6
#define DHCPV6_REPLY 7
#define DHCPV6_RELEASE 8
#define DHCPV6_DECLINE 9
#define DHCPV6_RECONFIGURE 10
#define DHCPV6_INFORMATION_REQUEST 11
#define DHCPV6_RELAY_FORW 12
#define DHCPV6_RELAY_REPL 13
#define DHCPV6_LEASEQUERY 14 /* RFC5007 */
#define DHCPV6_LEASEQUERY_REPLY 15 /* RFC5007 */
#define DHCPV6_LEASEQUERY_DONE 16 /* RFC5460 */
#define DHCPV6_LEASEQUERY_DATA 17 /* RFC5460 */
#define DHCPV6_RECONFIGURE_REQUEST 18 /* RFC6977 */
#define DHCPV6_RECONFIGURE_REPLY 19 /* RFC6977 */
#define DHCPV6_DHCPV4_QUERY 20 /* RFC7341 */
#define DHCPV6_DHCPV4_RESPONSE 21 /* RFC7341 */
extern const char *dhcpv6_type_names[];
extern const int dhcpv6_type_name_max;
/* DUID type definitions (RFC3315 section 9).
*/
#define DUID_LLT 1
#define DUID_EN 2
#define DUID_LL 3
#define DUID_UUID 4 /* RFC6355 */
/* Offsets into IA_*'s where Option spaces commence. */
#define IA_NA_OFFSET 12 /* IAID, T1, T2, all 4 octets each */
#define IA_TA_OFFSET 4 /* IAID only, 4 octets */
#define IA_PD_OFFSET 12 /* IAID, T1, T2, all 4 octets each */
/* Offset into IAADDR's where Option spaces commence. */
#define IAADDR_OFFSET 24
/* Offset into IAPREFIX's where Option spaces commence. */
#define IAPREFIX_OFFSET 25
/* Offset into LQ_QUERY's where Option spaces commence. */
#define LQ_QUERY_OFFSET 17
/*
* DHCPv6 well-known multicast addressess, from section 5.1 of RFC 3315
*/
#define All_DHCP_Relay_Agents_and_Servers "FF02::1:2"
#define All_DHCP_Servers "FF05::1:3"
/*
* DHCPv6 Retransmission Constants (RFC3315 section 5.5, RFC 5007)
*/
#define SOL_MAX_DELAY 1
#define SOL_TIMEOUT 1
#define SOL_MAX_RT 120
#define REQ_TIMEOUT 1
#define REQ_MAX_RT 30
#define REQ_MAX_RC 10
#define CNF_MAX_DELAY 1
#define CNF_TIMEOUT 1
#define CNF_MAX_RT 4
#define CNF_MAX_RD 10
#define REN_TIMEOUT 10
#define REN_MAX_RT 600
#define REB_TIMEOUT 10
#define REB_MAX_RT 600
#define INF_MAX_DELAY 1
#define INF_TIMEOUT 1
#define INF_MAX_RT 120
#define REL_TIMEOUT 1
#define REL_MAX_RC 5
#define DEC_TIMEOUT 1
#define DEC_MAX_RC 5
#define REC_TIMEOUT 2
#define REC_MAX_RC 8
#define HOP_COUNT_LIMIT 32
#define LQ6_TIMEOUT 1
#define LQ6_MAX_RT 10
#define LQ6_MAX_RC 5
/*
* Normal packet format, defined in section 6 of RFC 3315
*/
struct dhcpv6_packet {
unsigned char msg_type;
unsigned char transaction_id[3];
unsigned char options[FLEXIBLE_ARRAY_MEMBER];
};
/* Offset into DHCPV6 Reply packets where Options spaces commence. */
#define REPLY_OPTIONS_INDEX 4
/*
* Relay packet format, defined in section 7 of RFC 3315
*/
struct dhcpv6_relay_packet {
unsigned char msg_type;
unsigned char hop_count;
unsigned char link_address[16];
unsigned char peer_address[16];
unsigned char options[FLEXIBLE_ARRAY_MEMBER];
};
#define MAX_V6RELAY_HOPS 32
/*
* DHCPv4-over-DHCPv6 packet format, defined in RFC 4731
*/
struct dhcpv4_over_dhcpv6_packet {
unsigned char msg_type;
unsigned char flags[3];
unsigned char options[FLEXIBLE_ARRAY_MEMBER];
};
#define DHCP4O6_QUERY_UNICAST 128
/* DHCPv4-over-DHCPv6 ISC vendor suboptions */
#define D4O6_INTERFACE 60000
#define D4O6_SRC_ADDRESS 60001
/* Leasequery query-types (RFC 5007, 5460) */
#define LQ6QT_BY_ADDRESS 1
#define LQ6QT_BY_CLIENTID 2
#define LQ6QT_BY_RELAY_ID 3
#define LQ6QT_BY_LINK_ADDRESS 4
#define LQ6QT_BY_REMOTE_ID 5
/*
* DUID time starts 2000-01-01.
* This constant is the number of seconds since 1970-01-01,
* when the Unix epoch began.
*/
#define DUID_TIME_EPOCH 946684800
/* Information-Request Time option (RFC 4242) */
#define IRT_DEFAULT 86400
#define IRT_MINIMUM 600
#define EUI_64_ID_LEN 12 /* 2 for duid-type, 2 for hardware type, 8 for ID */
#define IAID_LEN 4
/* Offsets with iasubopt wire data of data values for IA_NA and TA */
#define IASUBOPT_NA_ADDR_OFFSET 0
#define IASUBOPT_NA_PREF_OFFSET 16
#define IASUBOPT_NA_VALID_OFFSET 20
#define IASUBOPT_NA_LEN 24
/* Offsets with iasubopt wire data of data values for PD */
#define IASUBOPT_PD_PREF_OFFSET 0
#define IASUBOPT_PD_VALID_OFFSET 4
#define IASUBOPT_PD_PREFLEN_OFFSET 8
#define IASUBOPT_PD_PREFIX_OFFSET 9
#define IASUBOPT_PD_LEN 25
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