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Diffstat (limited to 'isisd/isis_mt.h')
| -rw-r--r-- | isisd/isis_mt.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/isisd/isis_mt.h b/isisd/isis_mt.h new file mode 100644 index 0000000..13e5084 --- /dev/null +++ b/isisd/isis_mt.h @@ -0,0 +1,126 @@ +/* + * IS-IS Rout(e)ing protocol - Multi Topology Support + * + * Copyright (C) 2017 Christian Franke + * + * This file is part of FRRouting (FRR) + * + * FRR 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, or (at your option) any + * later version. + * + * FRR 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 ISIS_MT_H +#define ISIS_MT_H + +#define ISIS_MT_MASK 0x0fff +#define ISIS_MT_OL_MASK 0x8000 +#define ISIS_MT_AT_MASK 0x4000 + +#define ISIS_MT_IPV4_UNICAST 0 +#define ISIS_MT_STANDARD ISIS_MT_IPV4_UNICAST +#define ISIS_MT_IPV4_MGMT 1 +#define ISIS_MT_IPV6_UNICAST 2 +#define ISIS_MT_IPV4_MULTICAST 3 +#define ISIS_MT_IPV6_MULTICAST 4 +#define ISIS_MT_IPV6_MGMT 5 +#define ISIS_MT_IPV6_DSTSRC 3996 /* FIXME: IANA */ +/* Use first Reserved Flag to indicate that there is no MT Topology active */ +#define ISIS_MT_DISABLE 4096 + +#define ISIS_MT_NAMES \ + "<standard" \ + "|ipv4-mgmt" \ + "|ipv6-unicast" \ + "|ipv4-multicast" \ + "|ipv6-multicast" \ + "|ipv6-mgmt" \ + "|ipv6-dstsrc" \ + ">" + +#define ISIS_MT_DESCRIPTIONS \ + "IPv4 unicast topology\n" \ + "IPv4 management topology\n" \ + "IPv6 unicast topology\n" \ + "IPv4 multicast topology\n" \ + "IPv6 multicast topology\n" \ + "IPv6 management topology\n" \ + "IPv6 dst-src topology\n" \ + "" + +#define ISIS_MT_INFO_FIELDS uint16_t mtid; + +struct list; + +struct isis_area_mt_setting { + ISIS_MT_INFO_FIELDS + bool enabled; + bool overload; +}; + +struct isis_circuit_mt_setting { + ISIS_MT_INFO_FIELDS + bool enabled; +}; + +const char *isis_mtid2str(uint16_t mtid); +uint16_t isis_str2mtid(const char *name); + +struct isis_adjacency; +struct isis_area; +struct isis_circuit; +struct tlvs; +struct te_is_neigh; +struct isis_tlvs; + +bool isis_area_ipv6_dstsrc_enabled(struct isis_area *area); + +uint16_t isis_area_ipv6_topology(struct isis_area *area); + +struct isis_area_mt_setting *area_lookup_mt_setting(struct isis_area *area, + uint16_t mtid); +struct isis_area_mt_setting *area_new_mt_setting(struct isis_area *area, + uint16_t mtid); +void area_add_mt_setting(struct isis_area *area, + struct isis_area_mt_setting *setting); + +void area_mt_init(struct isis_area *area); +void area_mt_finish(struct isis_area *area); +struct isis_area_mt_setting *area_get_mt_setting(struct isis_area *area, + uint16_t mtid); +int area_write_mt_settings(struct isis_area *area, struct vty *vty); +bool area_is_mt(struct isis_area *area); +struct isis_area_mt_setting **area_mt_settings(struct isis_area *area, + unsigned int *mt_count); + +struct isis_circuit_mt_setting * +circuit_lookup_mt_setting(struct isis_circuit *circuit, uint16_t mtid); +struct isis_circuit_mt_setting * +circuit_new_mt_setting(struct isis_circuit *circuit, uint16_t mtid); +void circuit_add_mt_setting(struct isis_circuit *circuit, + struct isis_circuit_mt_setting *setting); +void circuit_mt_init(struct isis_circuit *circuit); +void circuit_mt_finish(struct isis_circuit *circuit); +struct isis_circuit_mt_setting * +circuit_get_mt_setting(struct isis_circuit *circuit, uint16_t mtid); +struct isis_circuit_mt_setting ** +circuit_mt_settings(struct isis_circuit *circuit, unsigned int *mt_count); +bool tlvs_to_adj_mt_set(struct isis_tlvs *tlvs, bool v4_usable, bool v6_usable, + struct isis_adjacency *adj); +bool adj_has_mt(struct isis_adjacency *adj, uint16_t mtid); +void adj_mt_finish(struct isis_adjacency *adj); +void tlvs_add_mt_bcast(struct isis_tlvs *tlvs, struct isis_circuit *circuit, + int level, uint8_t *id, uint32_t metric); +void tlvs_add_mt_p2p(struct isis_tlvs *tlvs, struct isis_circuit *circuit, + uint8_t *id, uint32_t metric); +void mt_init(void); +#endif |