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718e3744 | 1 | /* |
049207c3 | 2 | * Common protocol data and data structures. |
508e53e2 | 3 | * Copyright (C) 2003 Yasuhiro Ohara |
718e3744 | 4 | * |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
19 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | * Boston, MA 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #ifndef OSPF6_PROTO_H | |
24 | #define OSPF6_PROTO_H | |
25 | ||
26 | /* OSPF protocol version */ | |
508e53e2 | 27 | #define OSPFV3_VERSION 3 |
718e3744 | 28 | |
718e3744 | 29 | /* TOS field normaly null */ |
508e53e2 | 30 | #define DEFAULT_TOS_VALUE 0x0 |
718e3744 | 31 | |
718e3744 | 32 | #define ALLSPFROUTERS6 "ff02::5" |
33 | #define ALLDROUTERS6 "ff02::6" | |
34 | ||
508e53e2 | 35 | #define OSPF6_ROUTER_BIT_W (1 << 3) |
36 | #define OSPF6_ROUTER_BIT_V (1 << 2) | |
37 | #define OSPF6_ROUTER_BIT_E (1 << 1) | |
38 | #define OSPF6_ROUTER_BIT_B (1 << 0) | |
718e3744 | 39 | |
40 | /* OSPF options */ | |
41 | /* present in HELLO, DD, LSA */ | |
42 | #define OSPF6_OPT_SET(x,opt) ((x)[2] |= (opt)) | |
43 | #define OSPF6_OPT_ISSET(x,opt) ((x)[2] & (opt)) | |
44 | #define OSPF6_OPT_CLEAR(x,opt) ((x)[2] &= ~(opt)) | |
45 | #define OSPF6_OPT_CLEAR_ALL(x) ((x)[0] = (x)[1] = (x)[2] = 0) | |
46 | ||
718e3744 | 47 | #define OSPF6_OPT_DC (1 << 5) /* Demand Circuit handling Capability */ |
508e53e2 | 48 | #define OSPF6_OPT_R (1 << 4) /* Forwarding Capability (Any Protocol) */ |
49 | #define OSPF6_OPT_N (1 << 3) /* Handling Type-7 LSA Capability */ | |
50 | #define OSPF6_OPT_MC (1 << 2) /* Multicasting Capability */ | |
51 | #define OSPF6_OPT_E (1 << 1) /* AS External Capability */ | |
52 | #define OSPF6_OPT_V6 (1 << 0) /* IPv6 forwarding Capability */ | |
53 | ||
54 | /* OSPF6 Prefix */ | |
abc7ef44 | 55 | #define OSPF6_PREFIX_MIN_SIZE 4U /* .length == 0 */ |
508e53e2 | 56 | struct ospf6_prefix |
57 | { | |
58 | u_int8_t prefix_length; | |
59 | u_int8_t prefix_options; | |
60 | union { | |
61 | u_int16_t _prefix_metric; | |
62 | u_int16_t _prefix_referenced_lstype; | |
63 | } u; | |
64 | #define prefix_metric u._prefix_metric | |
65 | #define prefix_refer_lstype u._prefix_referenced_lstype | |
66 | /* followed by one address_prefix */ | |
67 | }; | |
68 | ||
69 | #define OSPF6_PREFIX_OPTION_NU (1 << 0) /* No Unicast */ | |
70 | #define OSPF6_PREFIX_OPTION_LA (1 << 1) /* Local Address */ | |
71 | #define OSPF6_PREFIX_OPTION_MC (1 << 2) /* MultiCast */ | |
72 | #define OSPF6_PREFIX_OPTION_P (1 << 3) /* Propagate (NSSA) */ | |
73 | ||
74 | /* caddr_t OSPF6_PREFIX_BODY (struct ospf6_prefix *); */ | |
75 | #define OSPF6_PREFIX_BODY(x) ((caddr_t)(x) + sizeof (struct ospf6_prefix)) | |
76 | ||
77 | /* size_t OSPF6_PREFIX_SPACE (int prefixlength); */ | |
78 | #define OSPF6_PREFIX_SPACE(x) ((((x) + 31) / 32) * 4) | |
79 | ||
80 | /* size_t OSPF6_PREFIX_SIZE (struct ospf6_prefix *); */ | |
81 | #define OSPF6_PREFIX_SIZE(x) \ | |
82 | (OSPF6_PREFIX_SPACE ((x)->prefix_length) + sizeof (struct ospf6_prefix)) | |
83 | ||
84 | /* struct ospf6_prefix *OSPF6_PREFIX_NEXT (struct ospf6_prefix *); */ | |
85 | #define OSPF6_PREFIX_NEXT(x) \ | |
86 | ((struct ospf6_prefix *)((caddr_t)(x) + OSPF6_PREFIX_SIZE (x))) | |
87 | ||
88 | #define ospf6_prefix_in6_addr(in6, op) \ | |
89 | do { \ | |
90 | memset (in6, 0, sizeof (struct in6_addr)); \ | |
91 | memcpy (in6, (caddr_t) (op) + sizeof (struct ospf6_prefix), \ | |
92 | OSPF6_PREFIX_SPACE ((op)->prefix_length)); \ | |
93 | } while (0) | |
718e3744 | 94 | |
6ac29a51 PJ |
95 | extern void ospf6_prefix_apply_mask (struct ospf6_prefix *op); |
96 | extern void ospf6_prefix_options_printbuf (u_int8_t prefix_options, | |
97 | char *buf, int size); | |
98 | extern void ospf6_capability_printbuf (char capability, char *buf, int size); | |
99 | extern void ospf6_options_printbuf (u_char *options, char *buf, int size); | |
718e3744 | 100 | |
101 | #endif /* OSPF6_PROTO_H */ |