diff options
author | Neale Ranns <nranns@cisco.com> | 2017-12-05 13:24:04 -0800 |
---|---|---|
committer | Florin Coras <florin.coras@gmail.com> | 2017-12-09 20:55:08 +0000 |
commit | 9128637ee8f7b0d903551f165a1447d427e8dd19 (patch) | |
tree | 244014dd1064643946d64066e352ee1627bf622c /src/vnet/bier/bier_types.c | |
parent | cef87f1a5eb4d69cf11ce1cd3c5506edcfba74c4 (diff) |
BIER in non-MPLS netowrks
as decsribed in section 2.2
ihttps://tools.ietf.org/html/draft-ietf-bier-mpls-encapsulation-10
with BIFT encoding from:
https://tools.ietf.org/html/draft-wijnandsxu-bier-non-mpls-bift-encoding-00
changes:
1 - introduce the new BIFT lookup table. BIER tables that have an associated
MPLS label are added to the MPLS-FIB. Those that don't are added to the
BIER table
2 - BIER routes that have no associated output MPLS label will add a BIFT label.
3 - The BIER FMask has a path-list as a member to resolve via any possible path.
Change-Id: I1fd4d9dbd074f0e855c16e9329b81460ebe1efce
Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/bier/bier_types.c')
-rw-r--r-- | src/vnet/bier/bier_types.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/vnet/bier/bier_types.c b/src/vnet/bier/bier_types.c index 680182de597..5c812a4557d 100644 --- a/src/vnet/bier/bier_types.c +++ b/src/vnet/bier/bier_types.c @@ -160,6 +160,35 @@ bier_hdr_proto_to_dpo (bier_hdr_proto_id_t bproto) return (DPO_PROTO_NUM); } +bier_bift_id_t +bier_bift_id_encode (bier_table_set_id_t set, + bier_table_sub_domain_id_t sd, + bier_hdr_len_id_t bsl) +{ + bier_bift_id_t id; + + id = bsl; + id = id << 8; + id |= sd; + id = id << 8; + id |= set; + + return (id); +} + +void +bier_bift_id_decode (bier_bift_id_t id, + bier_table_set_id_t *set, + bier_table_sub_domain_id_t *sd, + bier_hdr_len_id_t *bsl) +{ + *set = id & 0xff; + id = id >> 8; + *sd = id & 0xff; + id = id >> 8; + *bsl = id; +} + u8 * format_bier_table_id (u8 *s, va_list *ap) { @@ -188,3 +217,17 @@ format_bier_hdr (u8 *s, va_list *ap) format_bier_hdr_proto, bier_hdr_get_proto_id(©), bier_hdr_get_src_id(©))); } + + u8* + format_bier_bift_id(u8 *s, va_list *ap) + { + bier_bift_id_t id = va_arg(*ap, bier_bift_id_t); + bier_table_sub_domain_id_t sd; + bier_table_set_id_t set; + bier_hdr_len_id_t bsl; + + bier_bift_id_decode(id, &set, &sd, &bsl); + + return (format(s, "0x%x -> set:%d sd:%d hdr-len:%U", + id, set, sd, format_bier_hdr_len_id, bsl)); + } |