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: * Opaque LSA's link state ID is redefined as follows.
36: *
37: * 24 16 8 0
38: * +--------+--------+--------+--------+
39: * |tttttttt|........|........|........|
40: * +--------+--------+--------+--------+
41: * |<-Type->|<------- Opaque ID ------>|
42: */
43: #define LSID_OPAQUE_TYPE_MASK 0xff000000 /* 8 bits */
44: #define LSID_OPAQUE_ID_MASK 0x00ffffff /* 24 bits */
45:
46: #define GET_OPAQUE_TYPE(lsid) \
47: (((u_int32_t)(lsid) & LSID_OPAQUE_TYPE_MASK) >> 24)
48:
49: #define GET_OPAQUE_ID(lsid) \
50: ((u_int32_t)(lsid) & LSID_OPAQUE_ID_MASK)
51:
52: #define SET_OPAQUE_LSID(type, id) \
53: ((((type) << 24) & LSID_OPAQUE_TYPE_MASK) \
54: | ((id) & LSID_OPAQUE_ID_MASK))
55:
56: /*
57: * Opaque LSA types will be assigned by IANA.
58: * <http://www.iana.org/assignments/ospf-opaque-types>
59: */
60: #define OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA 1
61: #define OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC 2
62: #define OPAQUE_TYPE_GRACE_LSA 3
63:
64: /* Followings types are proposed in internet-draft documents. */
65: #define OPAQUE_TYPE_8021_QOSPF 129
66: #define OPAQUE_TYPE_SECONDARY_NEIGHBOR_DISCOVERY 224
67: #define OPAQUE_TYPE_FLOODGATE 225
68:
69: /* Ugly hack to make use of an unallocated value for wildcard matching! */
70: #define OPAQUE_TYPE_WILDCARD 0
71:
72: #define OPAQUE_TYPE_RANGE_UNASSIGNED(type) \
73: ( 4 <= (type) && (type) <= 127)
74:
75: #define OPAQUE_TYPE_RANGE_RESERVED(type) \
76: (127 < (type) && (type) <= 255)
77:
78: #define VALID_OPAQUE_INFO_LEN(lsahdr) \
79: ((ntohs((lsahdr)->length) >= sizeof (struct lsa_header)) && \
80: ((ntohs((lsahdr)->length) % sizeof (u_int32_t)) == 0))
81:
82: /* Prototypes. */
83:
84: extern void ospf_opaque_init (void);
85: extern void ospf_opaque_term (void);
86: extern int ospf_opaque_type9_lsa_init (struct ospf_interface *oi);
87: extern void ospf_opaque_type9_lsa_term (struct ospf_interface *oi);
88: extern int ospf_opaque_type10_lsa_init (struct ospf_area *area);
89: extern void ospf_opaque_type10_lsa_term (struct ospf_area *area);
90: extern int ospf_opaque_type11_lsa_init (struct ospf *ospf);
91: extern void ospf_opaque_type11_lsa_term (struct ospf *ospf);
92:
93: extern int
94: ospf_register_opaque_functab (
95: u_char lsa_type,
96: u_char opaque_type,
97: int (* new_if_hook)(struct interface *ifp),
98: int (* del_if_hook)(struct interface *ifp),
99: void (* ism_change_hook)(struct ospf_interface *oi, int old_status),
100: void (* nsm_change_hook)(struct ospf_neighbor *nbr, int old_status),
101: void (* config_write_router)(struct vty *vty),
102: void (* config_write_if )(struct vty *vty, struct interface *ifp),
103: void (* config_write_debug )(struct vty *vty),
104: void (* show_opaque_info )(struct vty *vty, struct ospf_lsa *lsa),
105: int (* lsa_originator)(void *arg),
106: struct ospf_lsa *(* lsa_refresher )(struct ospf_lsa *lsa),
107: int (* new_lsa_hook)(struct ospf_lsa *lsa),
108: int (* del_lsa_hook)(struct ospf_lsa *lsa)
109: );
110: extern void ospf_delete_opaque_functab (u_char lsa_type, u_char opaque_type);
111:
112: extern int ospf_opaque_new_if (struct interface *ifp);
113: extern int ospf_opaque_del_if (struct interface *ifp);
114: extern void ospf_opaque_ism_change (struct ospf_interface *oi,
115: int old_status);
116: extern void ospf_opaque_nsm_change (struct ospf_neighbor *nbr,
117: int old_status);
118: extern void ospf_opaque_config_write_router (struct vty *vty, struct ospf *);
119: extern void ospf_opaque_config_write_if (struct vty *vty,
120: struct interface *ifp);
121: extern void ospf_opaque_config_write_debug (struct vty *vty);
122: extern void show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa);
123: extern void ospf_opaque_lsa_dump (struct stream *s, u_int16_t length);
124:
125: extern void ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi,
126: int *init_delay);
127: extern struct ospf_lsa *ospf_opaque_lsa_install (struct ospf_lsa *,
128: int rt_recalc);
129: extern struct ospf_lsa *ospf_opaque_lsa_refresh (struct ospf_lsa *lsa);
130:
131: extern void ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent,
132: u_char lsa_type,
133: u_char opaque_type);
134: extern void ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa);
135: extern void ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa);
136:
137: extern void ospf_opaque_self_originated_lsa_received (struct ospf_neighbor
138: *nbr,
139: struct ospf_lsa *lsa);
140: extern void htonf (float *src, float *dst);
141: extern void ntohf (float *src, float *dst);
142: extern struct ospf *oi_to_top (struct ospf_interface *oi);
143:
144: #endif /* _ZEBRA_OSPF_OPAQUE_H */
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