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git.proxmox.com Git - mirror_frr.git/blob - zebra/label_manager.h
4 * Copyright (C) 2017 by Bingen Eguzkitza,
7 * This file is part of FreeRangeRouting (FRR)
9 * FRR is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2, or (at your option) any
14 * FRR is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; see the file COPYING; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #ifndef _LABEL_MANAGER_H
25 #define _LABEL_MANAGER_H
29 #include "lib/linklist.h"
30 #include "lib/thread.h"
32 #include "zebra/zserv.h"
42 * Client daemon which the chunk belongs to can be identified by either
43 * proto (daemon protocol) + instance.
44 * If the client then passes a non-empty value to keep field when it requests
45 * for chunks, the chunks won't be garbage collected and the client will be
46 * responsible of its release.
47 * Otherwise, if the keep field is not set (value 0) for the chunk, it will be
48 * automatically released when the client disconnects or when it reconnects
49 * (in case it died unexpectedly, we can know it's the same because it will have
50 * the same proto and instance values)
52 struct label_manager_chunk
{
54 unsigned short instance
;
56 uint32_t start
; /* First label of the chunk */
57 uint32_t end
; /* Last label of the chunk */
61 * Main label manager struct
62 * Holds a linked list of label chunks.
64 struct label_manager
{
70 int zread_relay_label_manager_request(int cmd
, struct zserv
*zserv
,
71 struct stream
*msg
, vrf_id_t vrf_id
);
72 void label_manager_init(char *lm_zserv_path
);
73 struct label_manager_chunk
*assign_label_chunk(uint8_t proto
,
74 unsigned short instance
,
75 uint8_t keep
, uint32_t size
);
76 int release_label_chunk(uint8_t proto
, unsigned short instance
, uint32_t start
,
78 int release_daemon_label_chunks(struct zserv
*client
);
79 void label_manager_close(void);
85 #endif /* _LABEL_MANAGER_H */