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Diffstat (limited to 'isisd/isis_route.h')
| -rw-r--r-- | isisd/isis_route.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/isisd/isis_route.h b/isisd/isis_route.h new file mode 100644 index 0000000..0e206d0 --- /dev/null +++ b/isisd/isis_route.h @@ -0,0 +1,89 @@ +/* + * IS-IS Rout(e)ing protocol - isis_route.h + * + * Copyright (C) 2001,2002 Sampo Saaristo + * Tampere University of Technology + * Institute of Communications Engineering + * + * based on ../ospf6d/ospf6_route.[ch] + * by Yasuhiro Ohara + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public Licenseas 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 _ZEBRA_ISIS_ROUTE_H +#define _ZEBRA_ISIS_ROUTE_H + +#include "lib/nexthop.h" + +struct isis_nexthop { + ifindex_t ifindex; + int family; + union g_addr ip; + uint8_t sysid[ISIS_SYS_ID_LEN]; + struct isis_sr_psid_info sr; + struct mpls_label_stack *label_stack; +}; + +struct isis_route_info { +#define ISIS_ROUTE_FLAG_ACTIVE 0x01 /* active route for the prefix */ +#define ISIS_ROUTE_FLAG_ZEBRA_SYNCED 0x02 /* set when route synced to zebra */ +#define ISIS_ROUTE_FLAG_ZEBRA_RESYNC 0x04 /* set when route needs to sync */ + uint8_t flag; + uint32_t cost; + uint32_t depth; + struct isis_sr_psid_info sr; + struct isis_sr_psid_info sr_previous; + struct list *nexthops; + struct isis_route_info *backup; +}; + +DECLARE_HOOK(isis_route_update_hook, + (struct isis_area * area, struct prefix *prefix, + struct isis_route_info *route_info), + (area, prefix, route_info)); + +void isis_nexthop_delete(struct isis_nexthop *nexthop); +void adjinfo2nexthop(int family, struct list *nexthops, + struct isis_adjacency *adj, struct isis_sr_psid_info *sr, + struct mpls_label_stack *label_stack); +struct isis_route_info * +isis_route_create(struct prefix *prefix, struct prefix_ipv6 *src_p, + uint32_t cost, uint32_t depth, struct isis_sr_psid_info *sr, + struct list *adjacencies, bool allow_ecmp, + struct isis_area *area, struct route_table *table); +void isis_route_delete(struct isis_area *area, struct route_node *rode, + struct route_table *table); + +/* Walk the given table and install new routes to zebra and remove old ones. + * route status is tracked using ISIS_ROUTE_FLAG_ACTIVE */ +void isis_route_verify_table(struct isis_area *area, struct route_table *table, + struct route_table *table_backup); + +/* Same as isis_route_verify_table, but merge L1 and L2 routes before */ +void isis_route_verify_merge(struct isis_area *area, + struct route_table *level1_table, + struct route_table *level1_table_backup, + struct route_table *level2_table, + struct route_table *level2_table_backup); + +/* Unset ISIS_ROUTE_FLAG_ACTIVE on all routes. Used before running spf. */ +void isis_route_invalidate_table(struct isis_area *area, + struct route_table *table); + +/* Cleanup route node when freeing routing table. */ +void isis_route_node_cleanup(struct route_table *table, + struct route_node *node); + +#endif /* _ZEBRA_ISIS_ROUTE_H */ |