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: #include "vty.h"
28:
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. */
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: struct ospf_lsa *(* 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,
132: int old_status);
133: extern void ospf_opaque_nsm_change (struct ospf_neighbor *nbr,
134: int old_status);
135: extern void ospf_opaque_config_write_router (struct vty *vty, struct ospf *);
136: extern void ospf_opaque_config_write_if (struct vty *vty,
137: struct interface *ifp);
138: extern void ospf_opaque_config_write_debug (struct vty *vty);
139: extern void show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa);
140: extern void ospf_opaque_lsa_dump (struct stream *s, u_int16_t length);
141:
142: extern void ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi,
143: int *init_delay);
144: extern struct ospf_lsa *ospf_opaque_lsa_install (struct ospf_lsa *,
145: int rt_recalc);
146: extern struct ospf_lsa *ospf_opaque_lsa_refresh (struct ospf_lsa *lsa);
147:
148: extern void ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent,
149: u_char lsa_type,
150: u_char opaque_type);
151: extern void ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa);
152: extern void ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa);
153:
154: extern void ospf_opaque_adjust_lsreq (struct ospf_neighbor *nbr,
155: struct list *lsas);
156: extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor
157: *nbr,
158: struct ospf_lsa *lsa);
159: extern void ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr,
160: struct ospf_lsa *lsa);
161:
162: extern void htonf (float *src, float *dst);
163: extern void ntohf (float *src, float *dst);
164: extern struct ospf *oi_to_top (struct ospf_interface *oi);
165:
166: #endif /* _ZEBRA_OSPF_OPAQUE_H */
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