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718e3744 | 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 | ||
27 | #define IS_OPAQUE_LSA(type) \ | |
28 | ((type) == OSPF_OPAQUE_LINK_LSA || \ | |
29 | (type) == OSPF_OPAQUE_AREA_LSA || \ | |
30 | (type) == OSPF_OPAQUE_AS_LSA) | |
31 | ||
32 | /* | |
33 | * Usage of Opaque-LSA administrative flags in "struct ospf". | |
34 | * | |
35 | * 7 6 5 4 3 2 1 0 | |
36 | * +---+---+---+---+---+---+---+---+ | |
37 | * |///|///|///|///|B11|B10|B09| O | | |
38 | * +---+---+---+---+---+---+---+---+ | |
39 | * |<--------->| A | |
40 | * | +--- Operation status (operational = 1) | |
41 | * +----------- Blocking status for each LSA type | |
42 | */ | |
43 | ||
44 | #define IS_OPAQUE_LSA_ORIGINATION_BLOCKED(V) \ | |
45 | CHECK_FLAG((V), (OPAQUE_BLOCK_TYPE_09_LSA_BIT | \ | |
46 | OPAQUE_BLOCK_TYPE_10_LSA_BIT | \ | |
47 | OPAQUE_BLOCK_TYPE_11_LSA_BIT)) | |
48 | ||
49 | /* | |
50 | * Opaque LSA's link state ID is redefined as follows. | |
51 | * | |
52 | * 24 16 8 0 | |
53 | * +--------+--------+--------+--------+ | |
54 | * |tttttttt|........|........|........| | |
55 | * +--------+--------+--------+--------+ | |
56 | * |<-Type->|<------- Opaque ID ------>| | |
57 | */ | |
58 | #define LSID_OPAQUE_TYPE_MASK 0xff000000 /* 8 bits */ | |
59 | #define LSID_OPAQUE_ID_MASK 0x00ffffff /* 24 bits */ | |
60 | ||
61 | #define GET_OPAQUE_TYPE(lsid) \ | |
62 | (((u_int32_t)(lsid) & LSID_OPAQUE_TYPE_MASK) >> 24) | |
63 | ||
64 | #define GET_OPAQUE_ID(lsid) \ | |
65 | ((u_int32_t)(lsid) & LSID_OPAQUE_ID_MASK) | |
66 | ||
67 | #define SET_OPAQUE_LSID(type, id) \ | |
68 | ((((type) << 24) & LSID_OPAQUE_TYPE_MASK) \ | |
69 | | ((id) & LSID_OPAQUE_ID_MASK)) | |
70 | ||
71 | /* | |
72 | * Opaque LSA types will be assigned by IANA. | |
73 | * <http://www.iana.org/assignments/ospf-opaque-types> | |
74 | */ | |
75 | #define OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA 1 | |
76 | #define OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC 2 | |
77 | #define OPAQUE_TYPE_GRACE_LSA 3 | |
78 | ||
79 | /* Followings types are proposed in internet-draft documents. */ | |
80 | #define OPAQUE_TYPE_8021_QOSPF 129 | |
81 | #define OPAQUE_TYPE_SECONDARY_NEIGHBOR_DISCOVERY 224 | |
82 | #define OPAQUE_TYPE_FLOODGATE 225 | |
83 | ||
84 | /* Ugly hack to make use of an unallocated value for wildcard matching! */ | |
85 | #define OPAQUE_TYPE_WILDCARD 0 | |
86 | ||
87 | #define OPAQUE_TYPE_RANGE_UNASSIGNED(type) \ | |
88 | ( 4 <= (type) && (type) <= 127) | |
89 | ||
90 | #define OPAQUE_TYPE_RANGE_RESERVED(type) \ | |
91 | (127 < (type) && (type) <= 255) | |
92 | ||
93 | #define VALID_OPAQUE_INFO_LEN(lsahdr) \ | |
94 | ((ntohs((lsahdr)->length) >= sizeof (struct lsa_header)) && \ | |
95 | ((ntohs((lsahdr)->length) % sizeof (u_int32_t)) == 0)) | |
96 | ||
97 | /* Prototypes. */ | |
98 | struct vty; | |
99 | struct stream; | |
100 | ||
101 | extern void ospf_opaque_init (void); | |
102 | extern void ospf_opaque_term (void); | |
103 | extern int ospf_opaque_type9_lsa_init (struct ospf_interface *oi); | |
104 | extern void ospf_opaque_type9_lsa_term (struct ospf_interface *oi); | |
105 | extern int ospf_opaque_type10_lsa_init (struct ospf_area *area); | |
106 | extern void ospf_opaque_type10_lsa_term (struct ospf_area *area); | |
107 | extern int ospf_opaque_type11_lsa_init (struct ospf *ospf); | |
108 | extern void ospf_opaque_type11_lsa_term (struct ospf *ospf); | |
109 | ||
110 | extern int | |
111 | ospf_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 | ); | |
127 | extern void ospf_delete_opaque_functab (u_char lsa_type, u_char opaque_type); | |
128 | ||
129 | extern int ospf_opaque_new_if (struct interface *ifp); | |
130 | extern int ospf_opaque_del_if (struct interface *ifp); | |
131 | extern void ospf_opaque_ism_change (struct ospf_interface *oi, int old_status); | |
132 | extern void ospf_opaque_nsm_change (struct ospf_neighbor *nbr, int old_status); | |
133 | extern void ospf_opaque_config_write_router (struct vty *vty, struct ospf *); | |
134 | extern void ospf_opaque_config_write_if (struct vty *vty, struct interface *ifp); | |
135 | extern void ospf_opaque_config_write_debug (struct vty *vty); | |
136 | extern void show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa); | |
137 | extern void ospf_opaque_lsa_dump (struct stream *s, u_int16_t length); | |
138 | ||
139 | extern void ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi, int *init_delay); | |
140 | extern struct ospf_lsa *ospf_opaque_lsa_install (struct ospf_lsa *new, int rt_recalc); | |
141 | extern void ospf_opaque_lsa_refresh (struct ospf_lsa *lsa); | |
142 | ||
143 | extern void ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent, u_char lsa_type, u_char opaque_type); | |
144 | extern void ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa); | |
145 | extern void ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa); | |
146 | ||
87d6f87a | 147 | extern void ospf_opaque_adjust_lsreq (struct ospf_neighbor *nbr, |
148 | struct list *lsas); | |
149 | extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor *nbr, | |
150 | struct list *lsas); | |
151 | extern void ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr, | |
152 | struct list *acks); | |
718e3744 | 153 | |
154 | extern void htonf (float *src, float *dst); | |
155 | extern void ntohf (float *src, float *dst); | |
156 | extern struct ospf *oi_to_top (struct ospf_interface *oi); | |
157 | ||
158 | #endif /* _ZEBRA_OSPF_OPAQUE_H */ |