[thirdparty/systemd.git] / src / libsystemd-network / dhcp6-protocol.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

/***
  Copyright © 2014 Intel Corporation. All rights reserved.
***/

#include <netinet/ip6.h>
#include <netinet/udp.h>

#include "macro.h"
#include "sparse-endian.h"

struct DHCP6Message {
        union {
                struct {
                        uint8_t type;
                        uint8_t _pad[3];
                } _packed_;
                be32_t transaction_id;
        };
        uint8_t options[];
} _packed_;

typedef struct DHCP6Message DHCP6Message;

#define DHCP6_MIN_OPTIONS_SIZE \
        1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr)

#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \
        { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
              0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } }

enum {
        DHCP6_PORT_SERVER                       = 547,
        DHCP6_PORT_CLIENT                       = 546,
};

#define DHCP6_INF_TIMEOUT                       1 * USEC_PER_SEC
#define DHCP6_INF_MAX_RT                        120 * USEC_PER_SEC
#define DHCP6_SOL_MAX_DELAY                     1 * USEC_PER_SEC
#define DHCP6_SOL_TIMEOUT                       1 * USEC_PER_SEC
#define DHCP6_SOL_MAX_RT                        120 * USEC_PER_SEC
#define DHCP6_REQ_TIMEOUT                       1 * USEC_PER_SEC
#define DHCP6_REQ_MAX_RT                        120 * USEC_PER_SEC
#define DHCP6_REQ_MAX_RC                        10
#define DHCP6_REN_TIMEOUT                       10 * USEC_PER_SEC
#define DHCP6_REN_MAX_RT                        600 * USEC_PER_SEC
#define DHCP6_REB_TIMEOUT                       10 * USEC_PER_SEC
#define DHCP6_REB_MAX_RT                        600 * USEC_PER_SEC

enum DHCP6State {
        DHCP6_STATE_STOPPED                     = 0,
        DHCP6_STATE_INFORMATION_REQUEST         = 1,
        DHCP6_STATE_SOLICITATION                = 2,
        DHCP6_STATE_REQUEST                     = 3,
        DHCP6_STATE_BOUND                       = 4,
        DHCP6_STATE_RENEW                       = 5,
        DHCP6_STATE_REBIND                      = 6,
};

enum {
        DHCP6_SOLICIT                           = 1,
        DHCP6_ADVERTISE                         = 2,
        DHCP6_REQUEST                           = 3,
        DHCP6_CONFIRM                           = 4,
        DHCP6_RENEW                             = 5,
        DHCP6_REBIND                            = 6,
        DHCP6_REPLY                             = 7,
        DHCP6_RELEASE                           = 8,
        DHCP6_DECLINE                           = 9,
        DHCP6_RECONFIGURE                       = 10,
        DHCP6_INFORMATION_REQUEST               = 11,
        DHCP6_RELAY_FORW                        = 12,
        DHCP6_RELAY_REPL                        = 13,
        _DHCP6_MESSAGE_MAX                      = 14,
};

enum {
        DHCP6_NTP_SUBOPTION_SRV_ADDR            = 1,
        DHCP6_NTP_SUBOPTION_MC_ADDR             = 2,
        DHCP6_NTP_SUBOPTION_SRV_FQDN            = 3,
};

/*
 * RFC 8415, RFC 5007 and RFC 7653 status codes:
 * https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-5
 */
enum {
        DHCP6_STATUS_SUCCESS                      = 0,
        DHCP6_STATUS_UNSPEC_FAIL                  = 1,
        DHCP6_STATUS_NO_ADDRS_AVAIL               = 2,
        DHCP6_STATUS_NO_BINDING                   = 3,
        DHCP6_STATUS_NOT_ON_LINK                  = 4,
        DHCP6_STATUS_USE_MULTICAST                = 5,
        DHCP6_STATUS_NO_PREFIX_AVAIL              = 6,
        DHCP6_STATUS_UNKNOWN_QUERY_TYPE           = 7,
        DHCP6_STATUS_MALFORMED_QUERY              = 8,
        DHCP6_STATUS_NOT_CONFIGURED               = 9,
        DHCP6_STATUS_NOT_ALLOWED                  = 10,
        DHCP6_STATUS_QUERY_TERMINATED             = 11,
        DHCP6_STATUS_DATA_MISSING                 = 12,
        DHCP6_STATUS_CATCHUP_COMPLETE             = 13,
        DHCP6_STATUS_NOT_SUPPORTED                = 14,
        DHCP6_STATUS_TLS_CONNECTION_REFUSED       = 15,
        DHCP6_STATUS_ADDRESS_IN_USE               = 16,
        DHCP6_STATUS_CONFIGURATION_CONFLICT       = 17,
        DHCP6_STATUS_MISSING_BINDING_INFORMATION  = 18,
        DHCP6_STATUS_OUTDATED_BINDING_INFORMATION = 19,
        DHCP6_STATUS_SERVER_SHUTTING_DOWN         = 20,
        DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED     = 21,
        DHCP6_STATUS_EXCESSIVE_TIME_SKEW          = 22,
        _DHCP6_STATUS_MAX                         = 23,
};

enum {
        DHCP6_FQDN_FLAG_S = (1 << 0),
        DHCP6_FQDN_FLAG_O = (1 << 1),
        DHCP6_FQDN_FLAG_N = (1 << 2),
};
Commit	Line	Data
db9ecf05	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
139b011a PF	2	#pragma once
	3
	4	/***
810adae9	5	Copyright © 2014 Intel Corporation. All rights reserved.
139b011a PF	6	***/
139b011a PF	7
631bbe71 PF	8	#include <netinet/ip6.h>
	9	#include <netinet/udp.h>
	10
139b011a PF	11	#include "macro.h"
	12	#include "sparse-endian.h"
	13
	14	struct DHCP6Message {
	15	union {
	16	struct {
	17	uint8_t type;
	18	uint8_t _pad[3];
	19	} _packed_;
	20	be32_t transaction_id;
	21	};
3bc424a3	22	uint8_t options[];
139b011a PF	23	} _packed_;
	24
	25	typedef struct DHCP6Message DHCP6Message;
	26
631bbe71 PF	27	#define DHCP6_MIN_OPTIONS_SIZE \
	28	1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr)
	29
34e8c5a2 PF	30	#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \
	31	{ { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
	32	0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } }
	33
139b011a PF	34	enum {
	35	DHCP6_PORT_SERVER = 547,
	36	DHCP6_PORT_CLIENT = 546,
	37	};
	38
bbfa43ca PF	39	#define DHCP6_INF_TIMEOUT 1 * USEC_PER_SEC
bbfa43ca PF	40	#define DHCP6_INF_MAX_RT 120 * USEC_PER_SEC
d1b0afe3 PF	41	#define DHCP6_SOL_MAX_DELAY 1 * USEC_PER_SEC
	42	#define DHCP6_SOL_TIMEOUT 1 * USEC_PER_SEC
	43	#define DHCP6_SOL_MAX_RT 120 * USEC_PER_SEC
7246333c PF	44	#define DHCP6_REQ_TIMEOUT 1 * USEC_PER_SEC
	45	#define DHCP6_REQ_MAX_RT 120 * USEC_PER_SEC
	46	#define DHCP6_REQ_MAX_RC 10
3dc34fcc PF	47	#define DHCP6_REN_TIMEOUT 10 * USEC_PER_SEC
	48	#define DHCP6_REN_MAX_RT 600 * USEC_PER_SEC
	49	#define DHCP6_REB_TIMEOUT 10 * USEC_PER_SEC
	50	#define DHCP6_REB_MAX_RT 600 * USEC_PER_SEC
d1b0afe3	51
139b011a PF	52	enum DHCP6State {
139b011a PF	53	DHCP6_STATE_STOPPED = 0,
bbfa43ca	54	DHCP6_STATE_INFORMATION_REQUEST = 1,
d1b0afe3	55	DHCP6_STATE_SOLICITATION = 2,
7246333c	56	DHCP6_STATE_REQUEST = 3,
a34b57c0	57	DHCP6_STATE_BOUND = 4,
3dc34fcc PF	58	DHCP6_STATE_RENEW = 5,
3dc34fcc PF	59	DHCP6_STATE_REBIND = 6,
139b011a PF	60	};
	61
	62	enum {
	63	DHCP6_SOLICIT = 1,
	64	DHCP6_ADVERTISE = 2,
	65	DHCP6_REQUEST = 3,
	66	DHCP6_CONFIRM = 4,
	67	DHCP6_RENEW = 5,
	68	DHCP6_REBIND = 6,
	69	DHCP6_REPLY = 7,
	70	DHCP6_RELEASE = 8,
	71	DHCP6_DECLINE = 9,
	72	DHCP6_RECONFIGURE = 10,
	73	DHCP6_INFORMATION_REQUEST = 11,
	74	DHCP6_RELAY_FORW = 12,
	75	DHCP6_RELAY_REPL = 13,
	76	_DHCP6_MESSAGE_MAX = 14,
	77	};
	78
6599680e PF	79	enum {
	80	DHCP6_NTP_SUBOPTION_SRV_ADDR = 1,
	81	DHCP6_NTP_SUBOPTION_MC_ADDR = 2,
	82	DHCP6_NTP_SUBOPTION_SRV_FQDN = 3,
	83	};
	84
76643fed SS	85	/*
	86	* RFC 8415, RFC 5007 and RFC 7653 status codes:
	87	* https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-5
	88	*/
139b011a	89	enum {
76643fed SS	90	DHCP6_STATUS_SUCCESS = 0,
	91	DHCP6_STATUS_UNSPEC_FAIL = 1,
	92	DHCP6_STATUS_NO_ADDRS_AVAIL = 2,
	93	DHCP6_STATUS_NO_BINDING = 3,
	94	DHCP6_STATUS_NOT_ON_LINK = 4,
	95	DHCP6_STATUS_USE_MULTICAST = 5,
	96	DHCP6_STATUS_NO_PREFIX_AVAIL = 6,
	97	DHCP6_STATUS_UNKNOWN_QUERY_TYPE = 7,
	98	DHCP6_STATUS_MALFORMED_QUERY = 8,
	99	DHCP6_STATUS_NOT_CONFIGURED = 9,
	100	DHCP6_STATUS_NOT_ALLOWED = 10,
	101	DHCP6_STATUS_QUERY_TERMINATED = 11,
	102	DHCP6_STATUS_DATA_MISSING = 12,
	103	DHCP6_STATUS_CATCHUP_COMPLETE = 13,
	104	DHCP6_STATUS_NOT_SUPPORTED = 14,
	105	DHCP6_STATUS_TLS_CONNECTION_REFUSED = 15,
	106	DHCP6_STATUS_ADDRESS_IN_USE = 16,
	107	DHCP6_STATUS_CONFIGURATION_CONFLICT = 17,
	108	DHCP6_STATUS_MISSING_BINDING_INFORMATION = 18,
	109	DHCP6_STATUS_OUTDATED_BINDING_INFORMATION = 19,
	110	DHCP6_STATUS_SERVER_SHUTTING_DOWN = 20,
	111	DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED = 21,
	112	DHCP6_STATUS_EXCESSIVE_TIME_SKEW = 22,
	113	_DHCP6_STATUS_MAX = 23,
139b011a	114	};
8006aa32 SA	115
	116	enum {
	117	DHCP6_FQDN_FLAG_S = (1 << 0),
	118	DHCP6_FQDN_FLAG_O = (1 << 1),
	119	DHCP6_FQDN_FLAG_N = (1 << 2),
	120	};