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Diffstat (limited to '')
| -rw-r--r-- | zebra/table_manager.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/zebra/table_manager.h b/zebra/table_manager.h new file mode 100644 index 0000000..fa13668 --- /dev/null +++ b/zebra/table_manager.h @@ -0,0 +1,79 @@ +/* zebra table Manager for routing table identifier management + * Copyright (C) 2018 6WIND + * + * 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 _TABLE_MANAGER_H +#define _TABLE_MANAGER_H + +#include <stdint.h> + +#include "lib/linklist.h" +#include "lib/thread.h" +#include "lib/ns.h" + +#include "zebra/zserv.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Table chunk struct + * Client daemon which the chunk belongs to can be identified by either + * proto (daemon protocol) + instance + VRF. + * If the client then passes a non-empty value to keep field when it requests + * for chunks, the chunks won't be garbage collected and the client will be + * responsible of its release. + * Otherwise, if the keep field is not set (value 0) for the chunk, it will be + * automatically released when the client disconnects or when it reconnects + * (in case it died unexpectedly, we can know it's the same because it will have + * the same proto and instance values) + */ +struct table_manager_chunk { + vrf_id_t vrf_id; + uint8_t proto; + uint16_t instance; + uint32_t start; /* First table RT ID of the chunk */ + uint32_t end; /* Last table RT ID of the chunk */ +}; + +/* + * Main table manager struct + * Holds a linked list of table chunks. + */ +struct table_manager { + struct list *lc_list; + uint32_t start; + uint32_t end; +}; + +void table_manager_enable(struct zebra_vrf *zvrf); +struct table_manager_chunk *assign_table_chunk(uint8_t proto, uint16_t instance, + uint32_t size, + struct zebra_vrf *zvrf); +int release_table_chunk(uint8_t proto, uint16_t instance, uint32_t start, + uint32_t end, struct zebra_vrf *zvrf); +int release_daemon_table_chunks(struct zserv *client); +void table_manager_disable(struct zebra_vrf *zvrf); +int table_manager_range(struct vty *vty, bool add, struct zebra_vrf *zvrf, + const char *min, const char *max); + +#ifdef __cplusplus +} +#endif + +#endif /* _TABLE_MANAGER_H */ |