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gerrit.opencord.org / quagga / d4e47287efd60f77b473f8d5677e4dac08c192b0 / . / ospfd / ospf_opaque.h
blob: e33fb65bbc74bff671c3ccaf362632981b21e4a2 [file] [log] [blame]
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]1/*
2 * This is an implementation of rfc2370.
3 * Copyright (C) 2001 KDD R&D Laboratories, Inc.
4 * http://www.kddlabs.co.jp/
5 *
6 * This file is part of GNU Zebra.
7 *
8 * GNU Zebra is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
11 * later version.
12 *
13 * GNU Zebra is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with GNU Zebra; see the file COPYING. If not, write to the Free
20 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21 * 02111-1307, USA.
22 */
23
24#ifndef _ZEBRA_OSPF_OPAQUE_H
25#define _ZEBRA_OSPF_OPAQUE_H
26
paul4dadc292005-05-06 21:37:42 +0000[diff] [blame]27#include "vty.h"
28
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]29#define IS_OPAQUE_LSA(type) \
30 ((type) == OSPF_OPAQUE_LINK_LSA || \
31 (type) == OSPF_OPAQUE_AREA_LSA || \
32 (type) == OSPF_OPAQUE_AS_LSA)
33
34/*
35 * Usage of Opaque-LSA administrative flags in "struct ospf".
36 *
37 * 7 6 5 4 3 2 1 0
38 * +---+---+---+---+---+---+---+---+
39 * |///|///|///|///|B11|B10|B09| O |
40 * +---+---+---+---+---+---+---+---+
41 * |<--------->| A
42 * | +--- Operation status (operational = 1)
43 * +----------- Blocking status for each LSA type
44 */
45
46#define IS_OPAQUE_LSA_ORIGINATION_BLOCKED(V) \
47 CHECK_FLAG((V), (OPAQUE_BLOCK_TYPE_09_LSA_BIT | \
48 OPAQUE_BLOCK_TYPE_10_LSA_BIT | \
49 OPAQUE_BLOCK_TYPE_11_LSA_BIT))
50
51/*
52 * Opaque LSA's link state ID is redefined as follows.
53 *
54 * 24 16 8 0
55 * +--------+--------+--------+--------+
56 * |tttttttt|........|........|........|
57 * +--------+--------+--------+--------+
58 * |<-Type->|<------- Opaque ID ------>|
59 */
60#define LSID_OPAQUE_TYPE_MASK 0xff000000 /* 8 bits */
61#define LSID_OPAQUE_ID_MASK 0x00ffffff /* 24 bits */
62
63#define GET_OPAQUE_TYPE(lsid) \
64 (((u_int32_t)(lsid) & LSID_OPAQUE_TYPE_MASK) >> 24)
65
66#define GET_OPAQUE_ID(lsid) \
67 ((u_int32_t)(lsid) & LSID_OPAQUE_ID_MASK)
68
69#define SET_OPAQUE_LSID(type, id) \
70 ((((type) << 24) & LSID_OPAQUE_TYPE_MASK) \
71 | ((id) & LSID_OPAQUE_ID_MASK))
72
73/*
74 * Opaque LSA types will be assigned by IANA.
75 * <http://www.iana.org/assignments/ospf-opaque-types>
76 */
77#define OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA 1
78#define OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC 2
79#define OPAQUE_TYPE_GRACE_LSA 3
80
81/* Followings types are proposed in internet-draft documents. */
82#define OPAQUE_TYPE_8021_QOSPF 129
83#define OPAQUE_TYPE_SECONDARY_NEIGHBOR_DISCOVERY 224
84#define OPAQUE_TYPE_FLOODGATE 225
85
86/* Ugly hack to make use of an unallocated value for wildcard matching! */
87#define OPAQUE_TYPE_WILDCARD 0
88
89#define OPAQUE_TYPE_RANGE_UNASSIGNED(type) \
90 ( 4 <= (type) && (type) <= 127)
91
92#define OPAQUE_TYPE_RANGE_RESERVED(type) \
93 (127 < (type) && (type) <= 255)
94
95#define VALID_OPAQUE_INFO_LEN(lsahdr) \
96 ((ntohs((lsahdr)->length) >= sizeof (struct lsa_header)) && \
97 ((ntohs((lsahdr)->length) % sizeof (u_int32_t)) == 0))
98
99/* Prototypes. */
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]100
101extern void ospf_opaque_init (void);
102extern void ospf_opaque_term (void);
103extern int ospf_opaque_type9_lsa_init (struct ospf_interface *oi);
104extern void ospf_opaque_type9_lsa_term (struct ospf_interface *oi);
105extern int ospf_opaque_type10_lsa_init (struct ospf_area *area);
106extern void ospf_opaque_type10_lsa_term (struct ospf_area *area);
107extern int ospf_opaque_type11_lsa_init (struct ospf *ospf);
108extern void ospf_opaque_type11_lsa_term (struct ospf *ospf);
109
110extern int
111ospf_register_opaque_functab (
112 u_char lsa_type,
113 u_char opaque_type,
114 int (* new_if_hook)(struct interface *ifp),
115 int (* del_if_hook)(struct interface *ifp),
116 void (* ism_change_hook)(struct ospf_interface *oi, int old_status),
117 void (* nsm_change_hook)(struct ospf_neighbor *nbr, int old_status),
118 void (* config_write_router)(struct vty *vty),
119 void (* config_write_if )(struct vty *vty, struct interface *ifp),
120 void (* config_write_debug )(struct vty *vty),
121 void (* show_opaque_info )(struct vty *vty, struct ospf_lsa *lsa),
122 int (* lsa_originator)(void *arg),
123 void (* lsa_refresher )(struct ospf_lsa *lsa),
124 int (* new_lsa_hook)(struct ospf_lsa *lsa),
125 int (* del_lsa_hook)(struct ospf_lsa *lsa)
126);
127extern void ospf_delete_opaque_functab (u_char lsa_type, u_char opaque_type);
128
129extern int ospf_opaque_new_if (struct interface *ifp);
130extern int ospf_opaque_del_if (struct interface *ifp);
paul4dadc292005-05-06 21:37:42 +0000[diff] [blame]131extern void ospf_opaque_ism_change (struct ospf_interface *oi,
132 int old_status);
133extern void ospf_opaque_nsm_change (struct ospf_neighbor *nbr,
134 int old_status);
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]135extern void ospf_opaque_config_write_router (struct vty *vty, struct ospf *);
paul4dadc292005-05-06 21:37:42 +0000[diff] [blame]136extern void ospf_opaque_config_write_if (struct vty *vty,
137 struct interface *ifp);
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]138extern void ospf_opaque_config_write_debug (struct vty *vty);
139extern void show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa);
140extern void ospf_opaque_lsa_dump (struct stream *s, u_int16_t length);
141
paul4dadc292005-05-06 21:37:42 +0000[diff] [blame]142extern void ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi,
143 int *init_delay);
144extern struct ospf_lsa *ospf_opaque_lsa_install (struct ospf_lsa *new,
145 int rt_recalc);
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]146extern void ospf_opaque_lsa_refresh (struct ospf_lsa *lsa);
147
paul4dadc292005-05-06 21:37:42 +0000[diff] [blame]148extern void ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent,
149 u_char lsa_type,
150 u_char opaque_type);
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]151extern void ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa);
152extern void ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa);
153
paul4dadc292005-05-06 21:37:42 +0000[diff] [blame]154extern void ospf_opaque_adjust_lsreq (struct ospf_neighbor *nbr,
155 struct list *lsas);
156extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor
157 *nbr,
158 struct list *lsas);
159extern void ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr,
160 struct list *acks);
paul718e3742002-12-13 20:15:29 +0000[diff] [blame]161
162extern void htonf (float *src, float *dst);
163extern void ntohf (float *src, float *dst);
164extern struct ospf *oi_to_top (struct ospf_interface *oi);
165
166#endif /* _ZEBRA_OSPF_OPAQUE_H */