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75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* zebra table Manager for routing table identifier management
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* Copyright (C) 2018 6WIND
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TABLE_MANAGER_H
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#define _TABLE_MANAGER_H
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#include <stdint.h>
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#include "lib/linklist.h"
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#include "lib/thread.h"
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#include "lib/ns.h"
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#include "zebra/zserv.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Table chunk struct
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* Client daemon which the chunk belongs to can be identified by either
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* proto (daemon protocol) + instance + VRF.
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* If the client then passes a non-empty value to keep field when it requests
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* for chunks, the chunks won't be garbage collected and the client will be
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* responsible of its release.
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* Otherwise, if the keep field is not set (value 0) for the chunk, it will be
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* automatically released when the client disconnects or when it reconnects
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* (in case it died unexpectedly, we can know it's the same because it will have
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* the same proto and instance values)
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*/
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struct table_manager_chunk {
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vrf_id_t vrf_id;
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uint8_t proto;
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uint16_t instance;
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uint32_t start; /* First table RT ID of the chunk */
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uint32_t end; /* Last table RT ID of the chunk */
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};
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/*
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* Main table manager struct
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* Holds a linked list of table chunks.
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*/
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struct table_manager {
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struct list *lc_list;
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};
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void table_manager_enable(ns_id_t ns_id);
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struct table_manager_chunk *assign_table_chunk(uint8_t proto, uint16_t instance,
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uint32_t size);
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int release_table_chunk(uint8_t proto, uint16_t instance, uint32_t start,
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uint32_t end);
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int release_daemon_table_chunks(struct zserv *client);
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void table_manager_disable(ns_id_t ns_id);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TABLE_MANAGER_H */
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