[mirror_frr.git] / bgpd / bgp_ecommunity.h

/* BGP Extended Communities Attribute.
 * Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * GNU Zebra is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _QUAGGA_BGP_ECOMMUNITY_H
#define _QUAGGA_BGP_ECOMMUNITY_H

#include "bgpd/bgp_route.h"
#include "bgpd/bgpd.h"

/* Refer to rfc7153 for the IANA registry definitions. These are
 * updated by other standards like rfc7674.
 */
/* High-order octet of the Extended Communities type field.  */
#define ECOMMUNITY_ENCODE_AS                0x00
#define ECOMMUNITY_ENCODE_IP                0x01
#define ECOMMUNITY_ENCODE_AS4               0x02
#define ECOMMUNITY_ENCODE_OPAQUE            0x03
#define ECOMMUNITY_ENCODE_EVPN              0x06
#define ECOMMUNITY_ENCODE_REDIRECT_IP_NH    0x08 /* Flow Spec */
/* Generic Transitive Experimental */
#define ECOMMUNITY_ENCODE_TRANS_EXP         0x80

/* RFC7674 */
#define ECOMMUNITY_EXTENDED_COMMUNITY_PART_2 0x81
#define ECOMMUNITY_EXTENDED_COMMUNITY_PART_3 0x82

/* Non-transitive extended community types. */
#define ECOMMUNITY_ENCODE_AS_NON_TRANS      0x40
#define ECOMMUNITY_ENCODE_IP_NON_TRANS      0x41
#define ECOMMUNITY_ENCODE_AS4_NON_TRANS     0x42
#define ECOMMUNITY_ENCODE_OPAQUE_NON_TRANS  0x43

/* Low-order octet of the Extended Communities type field.  */
/* Note: This really depends on the high-order octet. This means that
 * multiple definitions for the same value are possible.
 */
#define ECOMMUNITY_ROUTE_TARGET             0x02
#define ECOMMUNITY_SITE_ORIGIN              0x03
#define ECOMMUNITY_LINK_BANDWIDTH           0x04
#define ECOMMUNITY_TRAFFIC_RATE             0x06 /* Flow Spec */
#define ECOMMUNITY_TRAFFIC_ACTION           0x07
#define ECOMMUNITY_REDIRECT_VRF             0x08
#define ECOMMUNITY_TRAFFIC_MARKING          0x09
#define ECOMMUNITY_REDIRECT_IP_NH           0x00
/* from IANA: bgp-extended-communities/bgp-extended-communities.xhtml
 * 0x0c Flow-spec Redirect to IPv4 - draft-ietf-idr-flowspec-redirect
 */
#define ECOMMUNITY_FLOWSPEC_REDIRECT_IPV4   0x0c
/* from draft-ietf-idr-flow-spec-v6-09
 * 0x0b Flow-spec Redirect to IPv6
 */
#define ECOMMUNITY_FLOWSPEC_REDIRECT_IPV6   0x0b

/* Low-order octet of the Extended Communities type field for EVPN types */
#define ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY  0x00
#define ECOMMUNITY_EVPN_SUBTYPE_ESI_LABEL    0x01
#define ECOMMUNITY_EVPN_SUBTYPE_ES_IMPORT_RT 0x02
#define ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC    0x03
#define ECOMMUNITY_EVPN_SUBTYPE_DF_ELECTION 0x06
#define ECOMMUNITY_EVPN_SUBTYPE_DEF_GW       0x0d
#define ECOMMUNITY_EVPN_SUBTYPE_ND           0x08

#define ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY 0x01

/* DF alg bits - only lower 5 bits are applicable */
#define ECOMMUNITY_EVPN_SUBTYPE_DF_ALG_BITS 0x1f

#define ECOMMUNITY_EVPN_SUBTYPE_ND_ROUTER_FLAG   0x01
#define ECOMMUNITY_EVPN_SUBTYPE_ND_OVERRIDE_FLAG 0x02
#define ECOMMUNITY_EVPN_SUBTYPE_PROXY_FLAG       0x04

#define ECOMMUNITY_EVPN_SUBTYPE_ESI_SA_FLAG (1 << 0) /* single-active */

/* Low-order octet of the Extended Communities type field for OPAQUE types */
#define ECOMMUNITY_OPAQUE_SUBTYPE_ENCAP     0x0c

/* Extended communities attribute string format.  */
#define ECOMMUNITY_FORMAT_ROUTE_MAP            0
#define ECOMMUNITY_FORMAT_COMMUNITY_LIST       1
#define ECOMMUNITY_FORMAT_DISPLAY              2

/* Extended Communities value is eight octet long.  */
#define ECOMMUNITY_SIZE                        8
#define IPV6_ECOMMUNITY_SIZE                  20

/* Extended Communities type flag.  */
#define ECOMMUNITY_FLAG_NON_TRANSITIVE      0x40

/* Extended Community readable string length */
#define ECOMMUNITY_STRLEN 64

/* Extended Communities attribute.  */
struct ecommunity {
	/* Reference counter.  */
	unsigned long refcnt;

	/* Size of Each Unit of Extended Communities attribute.
	 * to differentiate between IPv6 ext comm and ext comm
	 */
	uint8_t unit_size;

	/* Size of Extended Communities attribute.  */
	uint32_t size;

	/* Extended Communities value.  */
	uint8_t *val;

	/* Human readable format string.  */
	char *str;

	/* Disable IEEE floating-point encoding for extended community */
	bool disable_ieee_floating;
};

struct ecommunity_as {
	as_t as;
	uint32_t val;
};

struct ecommunity_ip {
	struct in_addr ip;
	uint16_t val;
};

struct ecommunity_ip6 {
	struct in6_addr ip;
	uint16_t val;
};

/* Extended community value is eight octet.  */
struct ecommunity_val {
	char val[ECOMMUNITY_SIZE];
};

/* IPv6 Extended community value is eight octet.  */
struct ecommunity_val_ipv6 {
	char val[IPV6_ECOMMUNITY_SIZE];
};

#define ecom_length_size(X, Y)    ((X)->size * (Y))

/*
 * Encode BGP Route Target AS:nn.
 */
static inline void encode_route_target_as(as_t as, uint32_t val,
					  struct ecommunity_val *eval)
{
	eval->val[0] = ECOMMUNITY_ENCODE_AS;
	eval->val[1] = ECOMMUNITY_ROUTE_TARGET;
	eval->val[2] = (as >> 8) & 0xff;
	eval->val[3] = as & 0xff;
	eval->val[4] = (val >> 24) & 0xff;
	eval->val[5] = (val >> 16) & 0xff;
	eval->val[6] = (val >> 8) & 0xff;
	eval->val[7] = val & 0xff;
}

/*
 * Encode BGP Route Target IP:nn.
 */
static inline void encode_route_target_ip(struct in_addr ip, uint16_t val,
					  struct ecommunity_val *eval)
{
	eval->val[0] = ECOMMUNITY_ENCODE_IP;
	eval->val[1] = ECOMMUNITY_ROUTE_TARGET;
	memcpy(&eval->val[2], &ip, sizeof(struct in_addr));
	eval->val[6] = (val >> 8) & 0xff;
	eval->val[7] = val & 0xff;
}

/*
 * Encode BGP Route Target AS4:nn.
 */
static inline void encode_route_target_as4(as_t as, uint16_t val,
					   struct ecommunity_val *eval)
{
	eval->val[0] = ECOMMUNITY_ENCODE_AS4;
	eval->val[1] = ECOMMUNITY_ROUTE_TARGET;
	eval->val[2] = (as >> 24) & 0xff;
	eval->val[3] = (as >> 16) & 0xff;
	eval->val[4] = (as >> 8) & 0xff;
	eval->val[5] = as & 0xff;
	eval->val[6] = (val >> 8) & 0xff;
	eval->val[7] = val & 0xff;
}

/* Helper function to convert uint32 to IEEE-754 Floating Point */
static uint32_t uint32_to_ieee_float_uint32(uint32_t u)
{
	union {
		float r;
		uint32_t d;
	} f = {.r = (float)u};

	return f.d;
}

/*
 * Encode BGP Link Bandwidth extended community
 *  bandwidth (bw) is in bytes-per-sec
 */
static inline void encode_lb_extcomm(as_t as, uint32_t bw, bool non_trans,
				     struct ecommunity_val *eval,
				     bool disable_ieee_floating)
{
	uint32_t bandwidth =
		disable_ieee_floating ? bw : uint32_to_ieee_float_uint32(bw);

	memset(eval, 0, sizeof(*eval));
	eval->val[0] = ECOMMUNITY_ENCODE_AS;
	if (non_trans)
		eval->val[0] |= ECOMMUNITY_FLAG_NON_TRANSITIVE;
	eval->val[1] = ECOMMUNITY_LINK_BANDWIDTH;
	eval->val[2] = (as >> 8) & 0xff;
	eval->val[3] = as & 0xff;
	eval->val[4] = (bandwidth >> 24) & 0xff;
	eval->val[5] = (bandwidth >> 16) & 0xff;
	eval->val[6] = (bandwidth >> 8) & 0xff;
	eval->val[7] = bandwidth & 0xff;
}

extern void ecommunity_init(void);
extern void ecommunity_finish(void);
extern void ecommunity_free(struct ecommunity **);
extern struct ecommunity *ecommunity_parse(uint8_t *, unsigned short,
					   bool disable_ieee_floating);
extern struct ecommunity *ecommunity_parse_ipv6(uint8_t *pnt,
						unsigned short length,
						bool disable_ieee_floating);
extern struct ecommunity *ecommunity_dup(struct ecommunity *);
extern struct ecommunity *ecommunity_merge(struct ecommunity *,
					   struct ecommunity *);
extern struct ecommunity *ecommunity_uniq_sort(struct ecommunity *);
extern struct ecommunity *ecommunity_intern(struct ecommunity *);
extern bool ecommunity_cmp(const void *arg1, const void *arg2);
extern void ecommunity_unintern(struct ecommunity **ecommunity);
extern unsigned int ecommunity_hash_make(const void *);
extern struct ecommunity *ecommunity_str2com(const char *, int, int);
extern struct ecommunity *ecommunity_str2com_ipv6(const char *str, int type,
						  int keyword_included);
extern char *ecommunity_ecom2str(struct ecommunity *, int, int);
extern void ecommunity_strfree(char **s);
extern bool ecommunity_match(const struct ecommunity *,
			     const struct ecommunity *);
extern char *ecommunity_str(struct ecommunity *);
extern struct ecommunity_val *ecommunity_lookup(const struct ecommunity *,
						uint8_t, uint8_t);

extern bool ecommunity_add_val(struct ecommunity *ecom,
			       struct ecommunity_val *eval,
			       bool unique, bool overwrite);
extern bool ecommunity_add_val_ipv6(struct ecommunity *ecom,
				    struct ecommunity_val_ipv6 *eval,
				    bool unique, bool overwrite);

/* for vpn */
extern struct ecommunity *ecommunity_new(void);
extern bool ecommunity_strip(struct ecommunity *ecom, uint8_t type,
			     uint8_t subtype);
extern struct ecommunity *ecommunity_new(void);
extern bool ecommunity_del_val(struct ecommunity *ecom,
			       struct ecommunity_val *eval);
struct bgp_pbr_entry_action;
extern int ecommunity_fill_pbr_action(struct ecommunity_val *ecom_eval,
				      struct bgp_pbr_entry_action *api,
				      afi_t afi);

extern void bgp_compute_aggregate_ecommunity(
					struct bgp_aggregate *aggregate,
					struct ecommunity *ecommunity);

extern void bgp_compute_aggregate_ecommunity_hash(
					struct bgp_aggregate *aggregate,
					struct ecommunity *ecommunity);
extern void bgp_compute_aggregate_ecommunity_val(
					struct bgp_aggregate *aggregate);
extern void bgp_remove_ecommunity_from_aggregate(
					struct bgp_aggregate *aggregate,
					struct ecommunity *ecommunity);
extern void bgp_remove_ecomm_from_aggregate_hash(
					struct bgp_aggregate *aggregate,
					struct ecommunity *ecommunity);
extern void bgp_aggr_ecommunity_remove(void *arg);
extern const uint8_t *ecommunity_linkbw_present(struct ecommunity *ecom,
						uint32_t *bw);
extern struct ecommunity *ecommunity_replace_linkbw(as_t as,
						    struct ecommunity *ecom,
						    uint64_t cum_bw,
						    bool disable_ieee_floating);

static inline void ecommunity_strip_rts(struct ecommunity *ecom)
{
	uint8_t subtype = ECOMMUNITY_ROUTE_TARGET;

	ecommunity_strip(ecom, ECOMMUNITY_ENCODE_AS, subtype);
	ecommunity_strip(ecom, ECOMMUNITY_ENCODE_IP, subtype);
	ecommunity_strip(ecom, ECOMMUNITY_ENCODE_AS4, subtype);
}
#endif /* _QUAGGA_BGP_ECOMMUNITY_H */
Commit	Line	Data
718e3744	1	/* BGP Extended Communities Attribute.
896014f4 DL	2	* Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
	3	*
	4	* This file is part of GNU Zebra.
	5	*
	6	* GNU Zebra is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* GNU Zebra is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along
	17	* with this program; see the file COPYING; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
718e3744	20
00d252cb	21	#ifndef _QUAGGA_BGP_ECOMMUNITY_H
	22	#define _QUAGGA_BGP_ECOMMUNITY_H
	23
5b820d9e	24	#include "bgpd/bgp_route.h"
f4bd90c5	25	#include "bgpd/bgpd.h"
5b820d9e	26
7e3ebfd1	27	/* Refer to rfc7153 for the IANA registry definitions. These are
	28	* updated by other standards like rfc7674.
	29	*/
718e3744	30	/* High-order octet of the Extended Communities type field. */
	31	#define ECOMMUNITY_ENCODE_AS 0x00
	32	#define ECOMMUNITY_ENCODE_IP 0x01
0b2aa3a0	33	#define ECOMMUNITY_ENCODE_AS4 0x02
0014c301	34	#define ECOMMUNITY_ENCODE_OPAQUE 0x03
e82202b7	35	#define ECOMMUNITY_ENCODE_EVPN 0x06
b72220fc	36	#define ECOMMUNITY_ENCODE_REDIRECT_IP_NH 0x08 /* Flow Spec */
7e3ebfd1	37	/* Generic Transitive Experimental */
	38	#define ECOMMUNITY_ENCODE_TRANS_EXP 0x80
	39
a8d72b61 PG	40	/* RFC7674 */
	41	#define ECOMMUNITY_EXTENDED_COMMUNITY_PART_2 0x81
	42	#define ECOMMUNITY_EXTENDED_COMMUNITY_PART_3 0x82
718e3744	43
7e3ebfd1	44	/* Non-transitive extended community types. */
	45	#define ECOMMUNITY_ENCODE_AS_NON_TRANS 0x40
	46	#define ECOMMUNITY_ENCODE_IP_NON_TRANS 0x41
	47	#define ECOMMUNITY_ENCODE_AS4_NON_TRANS 0x42
	48	#define ECOMMUNITY_ENCODE_OPAQUE_NON_TRANS 0x43
	49
0014c301	50	/* Low-order octet of the Extended Communities type field. */
7e3ebfd1	51	/* Note: This really depends on the high-order octet. This means that
	52	* multiple definitions for the same value are possible.
	53	*/
718e3744	54	#define ECOMMUNITY_ROUTE_TARGET 0x02
718e3744	55	#define ECOMMUNITY_SITE_ORIGIN 0x03
650b0511	56	#define ECOMMUNITY_LINK_BANDWIDTH 0x04
a8d72b61 PG	57	#define ECOMMUNITY_TRAFFIC_RATE 0x06 /* Flow Spec */
	58	#define ECOMMUNITY_TRAFFIC_ACTION 0x07
	59	#define ECOMMUNITY_REDIRECT_VRF 0x08
	60	#define ECOMMUNITY_TRAFFIC_MARKING 0x09
	61	#define ECOMMUNITY_REDIRECT_IP_NH 0x00
2551b26e PG	62	/* from IANA: bgp-extended-communities/bgp-extended-communities.xhtml
	63	* 0x0c Flow-spec Redirect to IPv4 - draft-ietf-idr-flowspec-redirect
	64	*/
	65	#define ECOMMUNITY_FLOWSPEC_REDIRECT_IPV4 0x0c
9a659715 PG	66	/* from draft-ietf-idr-flow-spec-v6-09
	67	* 0x0b Flow-spec Redirect to IPv6
	68	*/
	69	#define ECOMMUNITY_FLOWSPEC_REDIRECT_IPV6 0x0b
718e3744	70
128ea8ab	71	/* Low-order octet of the Extended Communities type field for EVPN types */
1e27ef50 PG	72	#define ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY 0x00
	73	#define ECOMMUNITY_EVPN_SUBTYPE_ESI_LABEL 0x01
	74	#define ECOMMUNITY_EVPN_SUBTYPE_ES_IMPORT_RT 0x02
	75	#define ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC 0x03
74e2bd89	76	#define ECOMMUNITY_EVPN_SUBTYPE_DF_ELECTION 0x06
1e27ef50	77	#define ECOMMUNITY_EVPN_SUBTYPE_DEF_GW 0x0d
68e33151	78	#define ECOMMUNITY_EVPN_SUBTYPE_ND 0x08
1e27ef50	79
128ea8ab	80	#define ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY 0x01
7904e9fd	81
74e2bd89 AK	82	/* DF alg bits - only lower 5 bits are applicable */
	83	#define ECOMMUNITY_EVPN_SUBTYPE_DF_ALG_BITS 0x1f
	84
7904e9fd AK	85	#define ECOMMUNITY_EVPN_SUBTYPE_ND_ROUTER_FLAG 0x01
	86	#define ECOMMUNITY_EVPN_SUBTYPE_ND_OVERRIDE_FLAG 0x02
	87	#define ECOMMUNITY_EVPN_SUBTYPE_PROXY_FLAG 0x04
128ea8ab	88
4248407b AK	89	#define ECOMMUNITY_EVPN_SUBTYPE_ESI_SA_FLAG (1 << 0) /* single-active */
4248407b AK	90
0014c301 LB	91	/* Low-order octet of the Extended Communities type field for OPAQUE types */
	92	#define ECOMMUNITY_OPAQUE_SUBTYPE_ENCAP 0x0c
	93
718e3744	94	/* Extended communities attribute string format. */
	95	#define ECOMMUNITY_FORMAT_ROUTE_MAP 0
	96	#define ECOMMUNITY_FORMAT_COMMUNITY_LIST 1
	97	#define ECOMMUNITY_FORMAT_DISPLAY 2
	98
	99	/* Extended Communities value is eight octet long. */
	100	#define ECOMMUNITY_SIZE 8
c6423c31	101	#define IPV6_ECOMMUNITY_SIZE 20
718e3744	102
4372df71	103	/* Extended Communities type flag. */
7c40bf39	104	#define ECOMMUNITY_FLAG_NON_TRANSITIVE 0x40
4372df71	105
f5e04c75 PR	106	/* Extended Community readable string length */
	107	#define ECOMMUNITY_STRLEN 64
	108
718e3744	109	/* Extended Communities attribute. */
d62a17ae	110	struct ecommunity {
	111	/* Reference counter. */
	112	unsigned long refcnt;
718e3744	113
9a659715 PG	114	/* Size of Each Unit of Extended Communities attribute.
	115	* to differentiate between IPv6 ext comm and ext comm
	116	*/
c6423c31	117	uint8_t unit_size;
9a659715	118
d62a17ae	119	/* Size of Extended Communities attribute. */
f6e07e1b	120	uint32_t size;
718e3744	121
d62a17ae	122	/* Extended Communities value. */
d7c0a89a	123	uint8_t *val;
718e3744	124
d62a17ae	125	/* Human readable format string. */
d62a17ae	126	char *str;
27aa23a4 DA	127
	128	/* Disable IEEE floating-point encoding for extended community */
	129	bool disable_ieee_floating;
718e3744	130	};
718e3744	131
5a0ccebf QY	132	struct ecommunity_as {
	133	as_t as;
	134	uint32_t val;
	135	};
	136
	137	struct ecommunity_ip {
	138	struct in_addr ip;
	139	uint16_t val;
	140	};
	141
9a659715 PG	142	struct ecommunity_ip6 {
	143	struct in6_addr ip;
	144	uint16_t val;
	145	};
	146
718e3744	147	/* Extended community value is eight octet. */
d62a17ae	148	struct ecommunity_val {
d62a17ae	149	char val[ECOMMUNITY_SIZE];
718e3744	150	};
718e3744	151
9a659715 PG	152	/* IPv6 Extended community value is eight octet. */
	153	struct ecommunity_val_ipv6 {
	154	char val[IPV6_ECOMMUNITY_SIZE];
	155	};
	156
	157	#define ecom_length_size(X, Y) ((X)->size * (Y))
	158
c5900768	159	/*
	160	* Encode BGP Route Target AS:nn.
	161	*/
d7c0a89a	162	static inline void encode_route_target_as(as_t as, uint32_t val,
d62a17ae	163	struct ecommunity_val *eval)
c5900768	164	{
d62a17ae	165	eval->val[0] = ECOMMUNITY_ENCODE_AS;
	166	eval->val[1] = ECOMMUNITY_ROUTE_TARGET;
	167	eval->val[2] = (as >> 8) & 0xff;
	168	eval->val[3] = as & 0xff;
	169	eval->val[4] = (val >> 24) & 0xff;
	170	eval->val[5] = (val >> 16) & 0xff;
	171	eval->val[6] = (val >> 8) & 0xff;
	172	eval->val[7] = val & 0xff;
c5900768	173	}
	174
	175	/*
	176	* Encode BGP Route Target IP:nn.
	177	*/
d7c0a89a	178	static inline void encode_route_target_ip(struct in_addr ip, uint16_t val,
d62a17ae	179	struct ecommunity_val *eval)
c5900768	180	{
d62a17ae	181	eval->val[0] = ECOMMUNITY_ENCODE_IP;
	182	eval->val[1] = ECOMMUNITY_ROUTE_TARGET;
	183	memcpy(&eval->val[2], &ip, sizeof(struct in_addr));
	184	eval->val[6] = (val >> 8) & 0xff;
	185	eval->val[7] = val & 0xff;
c5900768	186	}
	187
	188	/*
	189	* Encode BGP Route Target AS4:nn.
	190	*/
d7c0a89a	191	static inline void encode_route_target_as4(as_t as, uint16_t val,
d62a17ae	192	struct ecommunity_val *eval)
c5900768	193	{
d62a17ae	194	eval->val[0] = ECOMMUNITY_ENCODE_AS4;
	195	eval->val[1] = ECOMMUNITY_ROUTE_TARGET;
	196	eval->val[2] = (as >> 24) & 0xff;
	197	eval->val[3] = (as >> 16) & 0xff;
	198	eval->val[4] = (as >> 8) & 0xff;
	199	eval->val[5] = as & 0xff;
	200	eval->val[6] = (val >> 8) & 0xff;
	201	eval->val[7] = val & 0xff;
c5900768	202	}
c5900768	203
8bcaad3d DA	204	/* Helper function to convert uint32 to IEEE-754 Floating Point */
	205	static uint32_t uint32_to_ieee_float_uint32(uint32_t u)
	206	{
	207	union {
	208	float r;
	209	uint32_t d;
	210	} f = {.r = (float)u};
	211
	212	return f.d;
	213	}
	214
ca9ac3ef	215	/*
	216	* Encode BGP Link Bandwidth extended community
	217	* bandwidth (bw) is in bytes-per-sec
	218	*/
	219	static inline void encode_lb_extcomm(as_t as, uint32_t bw, bool non_trans,
27aa23a4 DA	220	struct ecommunity_val *eval,
27aa23a4 DA	221	bool disable_ieee_floating)
ca9ac3ef	222	{
27aa23a4 DA	223	uint32_t bandwidth =
27aa23a4 DA	224	disable_ieee_floating ? bw : uint32_to_ieee_float_uint32(bw);
8bcaad3d	225
ca9ac3ef	226	memset(eval, 0, sizeof(*eval));
	227	eval->val[0] = ECOMMUNITY_ENCODE_AS;
	228	if (non_trans)
	229	eval->val[0] \|= ECOMMUNITY_FLAG_NON_TRANSITIVE;
	230	eval->val[1] = ECOMMUNITY_LINK_BANDWIDTH;
	231	eval->val[2] = (as >> 8) & 0xff;
	232	eval->val[3] = as & 0xff;
8bcaad3d DA	233	eval->val[4] = (bandwidth >> 24) & 0xff;
	234	eval->val[5] = (bandwidth >> 16) & 0xff;
	235	eval->val[6] = (bandwidth >> 8) & 0xff;
	236	eval->val[7] = bandwidth & 0xff;
ca9ac3ef	237	}
ca9ac3ef	238
d62a17ae	239	extern void ecommunity_init(void);
	240	extern void ecommunity_finish(void);
	241	extern void ecommunity_free(struct ecommunity **);
27aa23a4 DA	242	extern struct ecommunity ecommunity_parse(uint8_t , unsigned short,
27aa23a4 DA	243	bool disable_ieee_floating);
9a659715	244	extern struct ecommunity ecommunity_parse_ipv6(uint8_t pnt,
27aa23a4 DA	245	unsigned short length,
27aa23a4 DA	246	bool disable_ieee_floating);
d62a17ae	247	extern struct ecommunity ecommunity_dup(struct ecommunity );
	248	extern struct ecommunity ecommunity_merge(struct ecommunity ,
	249	struct ecommunity *);
	250	extern struct ecommunity ecommunity_uniq_sort(struct ecommunity );
	251	extern struct ecommunity ecommunity_intern(struct ecommunity );
74df8d6d	252	extern bool ecommunity_cmp(const void arg1, const void arg2);
df7d4670	253	extern void ecommunity_unintern(struct ecommunity **ecommunity);
d8b87afe	254	extern unsigned int ecommunity_hash_make(const void *);
d62a17ae	255	extern struct ecommunity ecommunity_str2com(const char , int, int);
9a659715 PG	256	extern struct ecommunity ecommunity_str2com_ipv6(const char str, int type,
9a659715 PG	257	int keyword_included);
d62a17ae	258	extern char ecommunity_ecom2str(struct ecommunity , int, int);
c7ee6c35	259	extern void ecommunity_strfree(char **s);
3dc339cd DA	260	extern bool ecommunity_match(const struct ecommunity *,
3dc339cd DA	261	const struct ecommunity *);
d62a17ae	262	extern char ecommunity_str(struct ecommunity );
	263	extern struct ecommunity_val ecommunity_lookup(const struct ecommunity ,
	264	uint8_t, uint8_t);
9a659715	265
3dc339cd	266	extern bool ecommunity_add_val(struct ecommunity *ecom,
1207a5bc	267	struct ecommunity_val *eval,
1207a5bc	268	bool unique, bool overwrite);
9a659715 PG	269	extern bool ecommunity_add_val_ipv6(struct ecommunity *ecom,
	270	struct ecommunity_val_ipv6 *eval,
	271	bool unique, bool overwrite);
00d252cb	272
65efcfce	273	/* for vpn */
d62a17ae	274	extern struct ecommunity *ecommunity_new(void);
3dc339cd DA	275	extern bool ecommunity_strip(struct ecommunity *ecom, uint8_t type,
3dc339cd DA	276	uint8_t subtype);
d62a17ae	277	extern struct ecommunity *ecommunity_new(void);
3dc339cd DA	278	extern bool ecommunity_del_val(struct ecommunity *ecom,
3dc339cd DA	279	struct ecommunity_val *eval);
dacf6ec1 PG	280	struct bgp_pbr_entry_action;
dacf6ec1 PG	281	extern int ecommunity_fill_pbr_action(struct ecommunity_val *ecom_eval,
f01e580f PG	282	struct bgp_pbr_entry_action *api,
f01e580f PG	283	afi_t afi);
dacf6ec1	284
5b820d9e NT	285	extern void bgp_compute_aggregate_ecommunity(
	286	struct bgp_aggregate *aggregate,
	287	struct ecommunity *ecommunity);
4edd83f9	288
	289	extern void bgp_compute_aggregate_ecommunity_hash(
	290	struct bgp_aggregate *aggregate,
	291	struct ecommunity *ecommunity);
	292	extern void bgp_compute_aggregate_ecommunity_val(
	293	struct bgp_aggregate *aggregate);
5b820d9e NT	294	extern void bgp_remove_ecommunity_from_aggregate(
	295	struct bgp_aggregate *aggregate,
	296	struct ecommunity *ecommunity);
4edd83f9	297	extern void bgp_remove_ecomm_from_aggregate_hash(
	298	struct bgp_aggregate *aggregate,
	299	struct ecommunity *ecommunity);
5b820d9e	300	extern void bgp_aggr_ecommunity_remove(void *arg);
d901dc13	301	extern const uint8_t ecommunity_linkbw_present(struct ecommunity ecom,
d901dc13	302	uint32_t *bw);
7b651a32	303	extern struct ecommunity *ecommunity_replace_linkbw(as_t as,
27aa23a4 DA	304	struct ecommunity *ecom,
	305	uint64_t cum_bw,
	306	bool disable_ieee_floating);
e8bfa90e	307
	308	static inline void ecommunity_strip_rts(struct ecommunity *ecom)
	309	{
	310	uint8_t subtype = ECOMMUNITY_ROUTE_TARGET;
	311
	312	ecommunity_strip(ecom, ECOMMUNITY_ENCODE_AS, subtype);
	313	ecommunity_strip(ecom, ECOMMUNITY_ENCODE_IP, subtype);
	314	ecommunity_strip(ecom, ECOMMUNITY_ENCODE_AS4, subtype);
	315	}
00d252cb	316	#endif /* _QUAGGA_BGP_ECOMMUNITY_H */