diff options
Diffstat (limited to 'bgpd/bgp_labelpool.h')
| -rw-r--r-- | bgpd/bgp_labelpool.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/bgpd/bgp_labelpool.h b/bgpd/bgp_labelpool.h new file mode 100644 index 0000000..2f3ffe4 --- /dev/null +++ b/bgpd/bgp_labelpool.h @@ -0,0 +1,57 @@ +/* + * BGP Label Pool - Manage label chunk allocations from zebra asynchronously + * + * Copyright (C) 2018 LabN Consulting, L.L.C. + * + * This program 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 of the License, or (at your option) + * any later version. + * + * This program 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 _FRR_BGP_LABELPOOL_H +#define _FRR_BGP_LABELPOOL_H + +#include <zebra.h> + +#include "mpls.h" + +/* + * Types used in bgp_lp_get for debug tracking; add more as needed + */ +#define LP_TYPE_VRF 0x00000001 +#define LP_TYPE_BGP_LU 0x00000002 + +PREDECL_LIST(lp_fifo); + +struct labelpool { + struct skiplist *ledger; /* all requests */ + struct skiplist *inuse; /* individual labels */ + struct list *chunks; /* granted by zebra */ + struct lp_fifo_head requests; /* blocked on zebra */ + struct work_queue *callback_q; + uint32_t pending_count; /* requested from zebra */ + uint32_t reconnect_count; /* zebra reconnections */ + uint32_t next_chunksize; /* request this many labels */ +}; + +extern void bgp_lp_init(struct thread_master *master, struct labelpool *pool); +extern void bgp_lp_finish(void); +extern void bgp_lp_get(int type, void *labelid, + int (*cbfunc)(mpls_label_t label, void *labelid, bool allocated)); +extern void bgp_lp_release(int type, void *labelid, mpls_label_t label); +extern void bgp_lp_event_chunk(uint8_t keep, uint32_t first, uint32_t last); +extern void bgp_lp_event_zebra_down(void); +extern void bgp_lp_event_zebra_up(void); +extern void bgp_lp_vty_init(void); + +#endif /* _FRR_BGP_LABELPOOL_H */ |