diff options
Diffstat (limited to 'bgpd/bgp_label.h')
| -rw-r--r-- | bgpd/bgp_label.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/bgpd/bgp_label.h b/bgpd/bgp_label.h index b54403e..2ffd5b6 100644 --- a/bgpd/bgp_label.h +++ b/bgpd/bgp_label.h @@ -15,6 +15,26 @@ struct bgp_dest; struct bgp_path_info; struct peer; +/* Maximum number of labels we can process or send with a prefix. We + * really do only 1 for MPLS (BGP-LU) but we can do 2 for EVPN-VxLAN. + */ +#define BGP_MAX_LABELS 2 + +/* MPLS label(s) - VNI(s) for EVPN-VxLAN */ +struct bgp_labels { + mpls_label_t label[BGP_MAX_LABELS]; + uint8_t num_labels; + + unsigned long refcnt; +}; + +extern void bgp_labels_init(void); +extern void bgp_labels_finish(void); +extern struct bgp_labels *bgp_labels_intern(struct bgp_labels *labels); +extern void bgp_labels_unintern(struct bgp_labels **plabels); +extern bool bgp_labels_cmp(const struct bgp_labels *labels1, + const struct bgp_labels *labels2); + extern int bgp_reg_for_label_callback(mpls_label_t new_label, void *labelid, bool allocated); extern void bgp_reg_dereg_for_label(struct bgp_dest *dest, @@ -27,9 +47,9 @@ extern mpls_label_t bgp_adv_label(struct bgp_dest *dest, extern int bgp_nlri_parse_label(struct peer *peer, struct attr *attr, struct bgp_nlri *packet); extern bool bgp_labels_same(const mpls_label_t *tbl_a, - const uint32_t num_labels_a, + const uint8_t num_labels_a, const mpls_label_t *tbl_b, - const uint32_t num_labels_b); + const uint8_t num_labels_b); static inline int bgp_labeled_safi(safi_t safi) { |