Annotation of embedaddon/quagga/ospf6d/ospf6_proto.h, revision 1.1.1.1
1.1 misho 1: /*
2: * Common protocol data and data structures.
3: * Copyright (C) 2003 Yasuhiro Ohara
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 */
27: #define OSPFV3_VERSION 3
28:
29: /* OSPF protocol number. */
30: #ifndef IPPROTO_OSPFIGP
31: #define IPPROTO_OSPFIGP 89
32: #endif
33:
34: /* TOS field normaly null */
35: #define DEFAULT_TOS_VALUE 0x0
36:
37: /* Architectural Constants */
38: #define LS_REFRESH_TIME 1800 /* 30 min */
39: #define MIN_LS_INTERVAL 5
40: #define MIN_LS_ARRIVAL 1
41: #define MAXAGE 3600 /* 1 hour */
42: #define CHECK_AGE 300 /* 5 min */
43: #define MAX_AGE_DIFF 900 /* 15 min */
44: #define LS_INFINITY 0xffffff /* 24-bit binary value */
45: #define INITIAL_SEQUENCE_NUMBER 0x80000001 /* signed 32-bit integer */
46: #define MAX_SEQUENCE_NUMBER 0x7fffffff /* signed 32-bit integer */
47:
48: #define ALLSPFROUTERS6 "ff02::5"
49: #define ALLDROUTERS6 "ff02::6"
50:
51: /* Configurable Constants */
52:
53: #define DEFAULT_HELLO_INTERVAL 10
54: #define DEFAULT_ROUTER_DEAD_INTERVAL 40
55:
56: #define OSPF6_ROUTER_BIT_W (1 << 3)
57: #define OSPF6_ROUTER_BIT_V (1 << 2)
58: #define OSPF6_ROUTER_BIT_E (1 << 1)
59: #define OSPF6_ROUTER_BIT_B (1 << 0)
60:
61: /* OSPF options */
62: /* present in HELLO, DD, LSA */
63: #define OSPF6_OPT_SET(x,opt) ((x)[2] |= (opt))
64: #define OSPF6_OPT_ISSET(x,opt) ((x)[2] & (opt))
65: #define OSPF6_OPT_CLEAR(x,opt) ((x)[2] &= ~(opt))
66: #define OSPF6_OPT_CLEAR_ALL(x) ((x)[0] = (x)[1] = (x)[2] = 0)
67:
68: #define OSPF6_OPT_DC (1 << 5) /* Demand Circuit handling Capability */
69: #define OSPF6_OPT_R (1 << 4) /* Forwarding Capability (Any Protocol) */
70: #define OSPF6_OPT_N (1 << 3) /* Handling Type-7 LSA Capability */
71: #define OSPF6_OPT_MC (1 << 2) /* Multicasting Capability */
72: #define OSPF6_OPT_E (1 << 1) /* AS External Capability */
73: #define OSPF6_OPT_V6 (1 << 0) /* IPv6 forwarding Capability */
74:
75: /* OSPF6 Prefix */
76: #define OSPF6_PREFIX_MIN_SIZE 4U /* .length == 0 */
77: struct ospf6_prefix
78: {
79: u_int8_t prefix_length;
80: u_int8_t prefix_options;
81: union {
82: u_int16_t _prefix_metric;
83: u_int16_t _prefix_referenced_lstype;
84: } u;
85: #define prefix_metric u._prefix_metric
86: #define prefix_refer_lstype u._prefix_referenced_lstype
87: /* followed by one address_prefix */
88: };
89:
90: #define OSPF6_PREFIX_OPTION_NU (1 << 0) /* No Unicast */
91: #define OSPF6_PREFIX_OPTION_LA (1 << 1) /* Local Address */
92: #define OSPF6_PREFIX_OPTION_MC (1 << 2) /* MultiCast */
93: #define OSPF6_PREFIX_OPTION_P (1 << 3) /* Propagate (NSSA) */
94:
95: /* caddr_t OSPF6_PREFIX_BODY (struct ospf6_prefix *); */
96: #define OSPF6_PREFIX_BODY(x) ((caddr_t)(x) + sizeof (struct ospf6_prefix))
97:
98: /* size_t OSPF6_PREFIX_SPACE (int prefixlength); */
99: #define OSPF6_PREFIX_SPACE(x) ((((x) + 31) / 32) * 4)
100:
101: /* size_t OSPF6_PREFIX_SIZE (struct ospf6_prefix *); */
102: #define OSPF6_PREFIX_SIZE(x) \
103: (OSPF6_PREFIX_SPACE ((x)->prefix_length) + sizeof (struct ospf6_prefix))
104:
105: /* struct ospf6_prefix *OSPF6_PREFIX_NEXT (struct ospf6_prefix *); */
106: #define OSPF6_PREFIX_NEXT(x) \
107: ((struct ospf6_prefix *)((caddr_t)(x) + OSPF6_PREFIX_SIZE (x)))
108:
109: #define ospf6_prefix_in6_addr(in6, op) \
110: do { \
111: memset (in6, 0, sizeof (struct in6_addr)); \
112: memcpy (in6, (caddr_t) (op) + sizeof (struct ospf6_prefix), \
113: OSPF6_PREFIX_SPACE ((op)->prefix_length)); \
114: } while (0)
115:
116: extern void ospf6_prefix_apply_mask (struct ospf6_prefix *op);
117: extern void ospf6_prefix_options_printbuf (u_int8_t prefix_options,
118: char *buf, int size);
119: extern void ospf6_capability_printbuf (char capability, char *buf, int size);
120: extern void ospf6_options_printbuf (u_char *options, char *buf, int size);
121:
122: #endif /* OSPF6_PROTO_H */
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