ldpd: copy original sources from OpenBSD (14/09/2016)

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

1 files changed, 304 insertions, 0 deletions

diff --git a/ldpd/ldp.h b/ldpd/ldp.h
new file mode 100644
index 0000000000..77034b30a5
--- /dev/null
+++ b/ldpd/ldp.h
@@ -0,0 +1,304 @@
+/*	$OpenBSD$ */
+
+/*
+ * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
+ * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
+ * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
+ */
+
+/* LDP protocol definitions */
+
+#ifndef _LDP_H_
+#define _LDP_H_
+
+#include <sys/types.h>
+
+/* misc */
+#define LDP_VERSION		1
+#define LDP_PORT		646
+#define LDP_MAX_LEN		4096
+
+/* All Routers on this Subnet group multicast addresses */
+#define AllRouters_v4		"224.0.0.2"
+#define AllRouters_v6		"ff02::2"
+
+#define LINK_DFLT_HOLDTIME	15
+#define TARGETED_DFLT_HOLDTIME	45
+#define MIN_HOLDTIME		3
+#define MAX_HOLDTIME		0xffff
+#define	INFINITE_HOLDTIME	0xffff
+
+#define DEFAULT_KEEPALIVE	180
+#define MIN_KEEPALIVE		3
+#define MAX_KEEPALIVE		0xffff
+#define KEEPALIVE_PER_PERIOD	3
+#define INIT_FSM_TIMEOUT	15
+
+#define	DEFAULT_HELLO_INTERVAL	5
+#define	MIN_HELLO_INTERVAL	1
+#define	MAX_HELLO_INTERVAL	0xffff
+
+#define	INIT_DELAY_TMR		15
+#define	MAX_DELAY_TMR		120
+
+#define	MIN_PWID_ID		1
+#define	MAX_PWID_ID		0xffffffff
+
+#define	DEFAULT_L2VPN_MTU	1500
+#define	MIN_L2VPN_MTU		512
+#define	MAX_L2VPN_MTU		0xffff
+
+/* LDP message types */
+#define MSG_TYPE_NOTIFICATION	0x0001
+#define MSG_TYPE_HELLO		0x0100
+#define MSG_TYPE_INIT		0x0200
+#define MSG_TYPE_KEEPALIVE	0x0201
+#define MSG_TYPE_ADDR		0x0300
+#define MSG_TYPE_ADDRWITHDRAW	0x0301
+#define MSG_TYPE_LABELMAPPING	0x0400
+#define MSG_TYPE_LABELREQUEST	0x0401
+#define MSG_TYPE_LABELWITHDRAW	0x0402
+#define MSG_TYPE_LABELRELEASE	0x0403
+#define MSG_TYPE_LABELABORTREQ	0x0404
+
+/* LDP TLV types */
+#define TLV_TYPE_FEC		0x0100
+#define TLV_TYPE_ADDRLIST	0x0101
+#define TLV_TYPE_HOPCOUNT	0x0103
+#define TLV_TYPE_PATHVECTOR	0x0104
+#define TLV_TYPE_GENERICLABEL	0x0200
+#define TLV_TYPE_ATMLABEL	0x0201
+#define TLV_TYPE_FRLABEL	0x0202
+#define TLV_TYPE_STATUS		0x0300
+#define TLV_TYPE_EXTSTATUS	0x0301
+#define TLV_TYPE_RETURNEDPDU	0x0302
+#define TLV_TYPE_RETURNEDMSG	0x0303
+#define TLV_TYPE_COMMONHELLO	0x0400
+#define TLV_TYPE_IPV4TRANSADDR	0x0401
+#define TLV_TYPE_CONFIG		0x0402
+#define TLV_TYPE_IPV6TRANSADDR	0x0403
+#define TLV_TYPE_COMMONSESSION	0x0500
+#define TLV_TYPE_ATMSESSIONPAR	0x0501
+#define TLV_TYPE_FRSESSION	0x0502
+#define TLV_TYPE_LABELREQUEST	0x0600
+/* RFC 4447 */
+#define TLV_TYPE_PW_STATUS	0x096A
+#define TLV_TYPE_PW_IF_PARAM	0x096B
+#define TLV_TYPE_PW_GROUP_ID	0x096C
+/* RFC 7552 */
+#define TLV_TYPE_DUALSTACK	0x8701
+
+/* LDP header */
+struct ldp_hdr {
+	uint16_t	version;
+	uint16_t	length;
+	uint32_t	lsr_id;
+	uint16_t	lspace_id;
+} __packed;
+
+#define	LDP_HDR_SIZE		10	/* actual size of the LDP header */
+#define	LDP_HDR_PDU_LEN		6	/* minimum "PDU Length" */
+#define LDP_HDR_DEAD_LEN	4
+
+/* TLV record */
+struct tlv {
+	uint16_t	type;
+	uint16_t	length;
+};
+#define	TLV_HDR_SIZE		4
+
+struct ldp_msg {
+	uint16_t	type;
+	uint16_t	length;
+	uint32_t	id;
+	/* Mandatory Parameters */
+	/* Optional Parameters */
+} __packed;
+
+#define LDP_MSG_SIZE		8	/* minimum size of LDP message */
+#define LDP_MSG_LEN		4	/* minimum "Message Length" */
+#define LDP_MSG_DEAD_LEN	4
+
+#define	UNKNOWN_FLAG		0x8000
+#define	FORWARD_FLAG		0xc000
+
+struct hello_prms_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint16_t	holdtime;
+	uint16_t	flags;
+};
+#define F_HELLO_TARGETED	0x8000
+#define F_HELLO_REQ_TARG	0x4000
+#define F_HELLO_GTSM		0x2000
+
+struct hello_prms_opt4_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint32_t	value;
+};
+
+struct hello_prms_opt16_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint8_t		value[16];
+};
+
+#define DUAL_STACK_LDPOV4	4
+#define DUAL_STACK_LDPOV6	6
+
+#define F_HELLO_TLV_RCVD_ADDR	0x01
+#define F_HELLO_TLV_RCVD_CONF	0x02
+#define F_HELLO_TLV_RCVD_DS	0x04
+
+#define	S_SUCCESS	0x00000000
+#define	S_BAD_LDP_ID	0x80000001
+#define	S_BAD_PROTO_VER	0x80000002
+#define	S_BAD_PDU_LEN	0x80000003
+#define	S_UNKNOWN_MSG	0x00000004
+#define	S_BAD_MSG_LEN	0x80000005
+#define	S_UNKNOWN_TLV	0x00000006
+#define	S_BAD_TLV_LEN	0x80000007
+#define	S_BAD_TLV_VAL	0x80000008
+#define	S_HOLDTIME_EXP	0x80000009
+#define	S_SHUTDOWN	0x8000000A
+#define	S_LOOP_DETECTED	0x0000000B
+#define	S_UNKNOWN_FEC	0x0000000C
+#define	S_NO_ROUTE	0x0000000D
+#define	S_NO_LABEL_RES	0x0000000E
+#define	S_AVAILABLE	0x0000000F
+#define	S_NO_HELLO	0x80000010
+#define	S_PARM_ADV_MODE	0x80000011
+#define	S_MAX_PDU_LEN	0x80000012
+#define	S_PARM_L_RANGE	0x80000013
+#define	S_KEEPALIVE_TMR	0x80000014
+#define	S_LAB_REQ_ABRT	0x00000015
+#define	S_MISS_MSG	0x00000016
+#define	S_UNSUP_ADDR	0x00000017
+#define	S_KEEPALIVE_BAD	0x80000018
+#define	S_INTERN_ERR	0x80000019
+/* RFC 4447 */
+#define S_ILLEGAL_CBIT	0x00000024
+#define S_WRONG_CBIT	0x00000025
+#define S_INCPT_BITRATE	0x00000026
+#define S_CEP_MISCONF	0x00000027
+#define S_PW_STATUS	0x00000028
+#define S_UNASSIGN_TAI	0x00000029
+#define S_MISCONF_ERR	0x0000002A
+#define S_WITHDRAW_MTHD	0x0000002B
+/* RFC 7552 */
+#define	S_TRANS_MISMTCH	0x80000032
+#define	S_DS_NONCMPLNCE	0x80000033
+
+struct sess_prms_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint16_t	proto_version;
+	uint16_t	keepalive_time;
+	uint8_t		reserved;
+	uint8_t		pvlim;
+	uint16_t	max_pdu_len;
+	uint32_t	lsr_id;
+	uint16_t	lspace_id;
+} __packed;
+
+#define SESS_PRMS_SIZE		18
+#define SESS_PRMS_LEN		14
+
+struct status_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint32_t	status_code;
+	uint32_t	msg_id;
+	uint16_t	msg_type;
+} __packed;
+
+#define STATUS_SIZE		14
+#define STATUS_TLV_LEN		10
+#define	STATUS_FATAL		0x80000000
+
+#define	AF_IPV4			0x1
+#define	AF_IPV6			0x2
+
+struct address_list_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint16_t	family;
+	/* address entries */
+} __packed;
+
+#define ADDR_LIST_SIZE		6
+
+#define FEC_ELM_WCARD_LEN	1
+#define FEC_ELM_PREFIX_MIN_LEN	4
+#define FEC_PWID_ELM_MIN_LEN	8
+
+#define	MAP_TYPE_WILDCARD	0x01
+#define	MAP_TYPE_PREFIX		0x02
+#define	MAP_TYPE_PWID		0x80
+#define	MAP_TYPE_GENPWID	0x81
+
+#define CONTROL_WORD_FLAG	0x8000
+#define PW_TYPE_ETHERNET_TAGGED	0x0004
+#define PW_TYPE_ETHERNET	0x0005
+#define DEFAULT_PW_TYPE		PW_TYPE_ETHERNET
+
+/* RFC 4447 Sub-TLV record */
+struct subtlv {
+	uint8_t		type;
+	uint8_t		length;
+};
+#define	SUBTLV_HDR_SIZE		2
+
+#define SUBTLV_IFMTU		0x01
+#define SUBTLV_VLANID		0x06
+
+#define FEC_SUBTLV_IFMTU_SIZE	4
+#define FEC_SUBTLV_VLANID_SIZE	4
+
+struct label_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint32_t	label;
+};
+#define LABEL_TLV_SIZE		8
+#define LABEL_TLV_LEN		4
+
+struct reqid_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint32_t	reqid;
+};
+#define REQID_TLV_SIZE		8
+#define REQID_TLV_LEN		4
+
+struct pw_status_tlv {
+	uint16_t	type;
+	uint16_t	length;
+	uint32_t	value;
+};
+#define PW_STATUS_TLV_SIZE	8
+#define PW_STATUS_TLV_LEN	4
+
+#define PW_FORWARDING		0
+#define PW_NOT_FORWARDING	(1 << 0)
+#define PW_LOCAL_RX_FAULT	(1 << 1)
+#define PW_LOCAL_TX_FAULT	(1 << 2)
+#define PW_PSN_RX_FAULT		(1 << 3)
+#define PW_PSN_TX_FAULT		(1 << 4)
+
+#define	NO_LABEL		UINT32_MAX
+
+#endif /* !_LDP_H_ */