2 * Common protocol data and data structures.
3 * Copyright (C) 2003 Yasuhiro Ohara
5 * This file is part of GNU Zebra.
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
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.
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.
26 /* OSPF protocol version */
27 #define OSPFV3_VERSION 3
29 /* TOS field normaly null */
30 #define DEFAULT_TOS_VALUE 0x0
32 #define ALLSPFROUTERS6 "ff02::5"
33 #define ALLDROUTERS6 "ff02::6"
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)
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)
47 #define OSPF6_OPT_DC (1 << 5) /* Demand Circuit handling Capability */
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 */
55 #define OSPF6_PREFIX_MIN_SIZE 4U /* .length == 0 */
58 u_int8_t prefix_length;
59 u_int8_t prefix_options;
61 u_int16_t _prefix_metric;
62 u_int16_t _prefix_referenced_lstype;
64 #define prefix_metric u._prefix_metric
65 #define prefix_refer_lstype u._prefix_referenced_lstype
66 /* followed by one address_prefix */
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) */
74 /* caddr_t OSPF6_PREFIX_BODY (struct ospf6_prefix *); */
75 #define OSPF6_PREFIX_BODY(x) ((caddr_t)(x) + sizeof (struct ospf6_prefix))
77 /* size_t OSPF6_PREFIX_SPACE (int prefixlength); */
78 #define OSPF6_PREFIX_SPACE(x) ((((x) + 31) / 32) * 4)
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))
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)))
88 #define ospf6_prefix_in6_addr(in6, op) \
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)); \
95 extern void ospf6_prefix_apply_mask (struct ospf6_prefix *op);
96 extern void ospf6_prefix_options_printbuf (u_int8_t prefix_options,
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);
101 #endif /* OSPF6_PROTO_H */