diff options
Diffstat (limited to 'bgpd/bgp_ecommunity.h')
| -rw-r--r-- | bgpd/bgp_ecommunity.h | 62 |
1 files changed, 48 insertions, 14 deletions
diff --git a/bgpd/bgp_ecommunity.h b/bgpd/bgp_ecommunity.h index 62e0430..929e4e6 100644 --- a/bgpd/bgp_ecommunity.h +++ b/bgpd/bgp_ecommunity.h @@ -10,6 +10,10 @@ #include "bgpd/bgp_rpki.h" #include "bgpd/bgpd.h" +#define ONE_GBPS_BYTES (1000 * 1000 * 1000 / 8) +#define ONE_MBPS_BYTES (1000 * 1000 / 8) +#define ONE_KBPS_BYTES (1000 / 8) + /* Refer to rfc7153 for the IANA registry definitions. These are * updated by other standards like rfc7674. */ @@ -52,10 +56,14 @@ * 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 +/* RFC 8956 */ +#define ECOMMUNITY_FLOWSPEC_REDIRECT_IPV6 0x0d + +/* https://datatracker.ietf.org/doc/html/draft-li-idr-link-bandwidth-ext-01 + * Sub-type is allocated by IANA, just the draft is not yet updated with the + * new value. */ -#define ECOMMUNITY_FLOWSPEC_REDIRECT_IPV6 0x0b +#define ECOMMUNITY_EXTENDED_LINK_BANDWIDTH 0x0006 /* Low-order octet of the Extended Communities type field for EVPN types */ #define ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY 0x00 @@ -226,12 +234,13 @@ static uint32_t uint32_to_ieee_float_uint32(uint32_t u) * 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, +static inline void encode_lb_extcomm(as_t as, uint64_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); + uint64_t bandwidth = disable_ieee_floating + ? bw + : uint32_to_ieee_float_uint32(bw); memset(eval, 0, sizeof(*eval)); eval->val[0] = ECOMMUNITY_ENCODE_AS; @@ -246,6 +255,33 @@ static inline void encode_lb_extcomm(as_t as, uint32_t bw, bool non_trans, eval->val[7] = bandwidth & 0xff; } +/* + * Encode BGP Link Bandwidth inside IPv6 Extended Community, + * bandwidth is in bytes per second. + */ +static inline void encode_lb_extended_extcomm(as_t as, uint64_t bandwidth, + bool non_trans, + struct ecommunity_val_ipv6 *eval) +{ + memset(eval, 0, sizeof(*eval)); + eval->val[0] = ECOMMUNITY_ENCODE_AS4; + if (non_trans) + eval->val[0] |= ECOMMUNITY_FLAG_NON_TRANSITIVE; + eval->val[1] = ECOMMUNITY_EXTENDED_LINK_BANDWIDTH; + eval->val[4] = (bandwidth >> 56) & 0xff; + eval->val[5] = (bandwidth >> 48) & 0xff; + eval->val[6] = (bandwidth >> 40) & 0xff; + eval->val[7] = (bandwidth >> 32) & 0xff; + eval->val[8] = (bandwidth >> 24) & 0xff; + eval->val[9] = (bandwidth >> 16) & 0xff; + eval->val[10] = (bandwidth >> 8) & 0xff; + eval->val[11] = bandwidth & 0xff; + eval->val[12] = (as >> 24) & 0xff; + eval->val[13] = (as >> 16) & 0xff; + eval->val[14] = (as >> 8) & 0xff; + eval->val[15] = as & 0xff; +} + static inline void encode_origin_validation_state(enum rpki_states state, struct ecommunity_val *eval) { @@ -327,8 +363,7 @@ 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); + unsigned short length); extern struct ecommunity *ecommunity_dup(struct ecommunity *); extern struct ecommunity *ecommunity_merge(struct ecommunity *, struct ecommunity *); @@ -346,7 +381,7 @@ extern void ecommunity_strfree(char **s); extern bool ecommunity_include(struct ecommunity *e1, struct ecommunity *e2); extern bool ecommunity_match(const struct ecommunity *, const struct ecommunity *); -extern char *ecommunity_str(struct ecommunity *ecom); +extern const char *ecommunity_str(struct ecommunity *ecom); extern struct ecommunity_val *ecommunity_lookup(const struct ecommunity *, uint8_t, uint8_t); @@ -387,11 +422,10 @@ extern void bgp_remove_ecomm_from_aggregate_hash( 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); + uint64_t *bw); +extern struct ecommunity * +ecommunity_replace_linkbw(as_t as, struct ecommunity *ecom, uint64_t cum_bw, + bool disable_ieee_floating, bool extended); extern bool soo_in_ecom(struct ecommunity *ecom, struct ecommunity *soo); |