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1 | /* |
2 | * This file is free software: you may copy, redistribute and/or modify it | |
3 | * under the terms of the GNU General Public License as published by the | |
4 | * Free Software Foundation, either version 2 of the License, or (at your | |
5 | * option) any later version. | |
6 | * | |
7 | * This file is distributed in the hope that it will be useful, but | |
8 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
10 | * General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
14 | * | |
15 | * This file incorporates work covered by the following copyright and | |
16 | * permission notice: | |
17 | * | |
18 | Copyright (c) 2007, 2008 by Juliusz Chroboczek | |
19 | ||
20 | Permission is hereby granted, free of charge, to any person obtaining a copy | |
21 | of this software and associated documentation files (the "Software"), to deal | |
22 | in the Software without restriction, including without limitation the rights | |
23 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
24 | copies of the Software, and to permit persons to whom the Software is | |
25 | furnished to do so, subject to the following conditions: | |
26 | ||
27 | The above copyright notice and this permission notice shall be included in | |
28 | all copies or substantial portions of the Software. | |
29 | ||
30 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
31 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
32 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
33 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
34 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
35 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
36 | THE SOFTWARE. | |
37 | */ | |
38 | ||
39 | #ifndef BABEL_MESSAGE_H | |
40 | #define BABEL_MESSAGE_H | |
41 | ||
42 | #include "babel_interface.h" | |
43 | ||
44 | #define MAX_BUFFERED_UPDATES 200 | |
45 | ||
46 | #define BUCKET_TOKENS_MAX 200 | |
47 | #define BUCKET_TOKENS_PER_SEC 40 | |
48 | ||
49 | #define MESSAGE_PAD1 0 | |
50 | #define MESSAGE_PADN 1 | |
51 | #define MESSAGE_ACK_REQ 2 | |
52 | #define MESSAGE_ACK 3 | |
53 | #define MESSAGE_HELLO 4 | |
54 | #define MESSAGE_IHU 5 | |
55 | #define MESSAGE_ROUTER_ID 6 | |
56 | #define MESSAGE_NH 7 | |
57 | #define MESSAGE_UPDATE 8 | |
58 | #define MESSAGE_REQUEST 9 | |
59 | #define MESSAGE_MH_REQUEST 10 | |
60 | ||
61 | ||
62 | extern unsigned short myseqno; | |
63 | extern struct timeval seqno_time; | |
64 | ||
5734509c PJ |
65 | extern int broadcast_ihu; |
66 | extern int split_horizon; | |
67 | ||
68 | extern unsigned char packet_header[4]; | |
69 | ||
70 | extern struct neighbour *unicast_neighbour; | |
71 | extern struct timeval unicast_flush_timeout; | |
72 | ||
73 | void parse_packet(const unsigned char *from, struct interface *ifp, | |
74 | const unsigned char *packet, int packetlen); | |
75 | void flushbuf(struct interface *ifp); | |
76 | void flushupdates(struct interface *ifp); | |
77 | void send_ack(struct neighbour *neigh, unsigned short nonce, | |
78 | unsigned short interval); | |
79 | void send_hello_noupdate(struct interface *ifp, unsigned interval); | |
80 | void send_hello(struct interface *ifp); | |
81 | void flush_unicast(int dofree); | |
82 | void send_update(struct interface *ifp, int urgent, | |
83 | const unsigned char *prefix, unsigned char plen); | |
84 | void send_update_resend(struct interface *ifp, | |
85 | const unsigned char *prefix, unsigned char plen); | |
86 | void send_wildcard_retraction(struct interface *ifp); | |
87 | void update_myseqno(void); | |
88 | void send_self_update(struct interface *ifp); | |
89 | void send_ihu(struct neighbour *neigh, struct interface *ifp); | |
90 | void send_marginal_ihu(struct interface *ifp); | |
91 | void send_request(struct interface *ifp, | |
92 | const unsigned char *prefix, unsigned char plen); | |
93 | void send_unicast_request(struct neighbour *neigh, | |
94 | const unsigned char *prefix, unsigned char plen); | |
95 | void send_multihop_request(struct interface *ifp, | |
96 | const unsigned char *prefix, unsigned char plen, | |
97 | unsigned short seqno, const unsigned char *id, | |
98 | unsigned short hop_count); | |
99 | void | |
100 | send_unicast_multihop_request(struct neighbour *neigh, | |
101 | const unsigned char *prefix, unsigned char plen, | |
102 | unsigned short seqno, const unsigned char *id, | |
103 | unsigned short hop_count); | |
104 | void send_request_resend(struct neighbour *neigh, | |
105 | const unsigned char *prefix, unsigned char plen, | |
106 | unsigned short seqno, unsigned char *id); | |
107 | void handle_request(struct neighbour *neigh, const unsigned char *prefix, | |
108 | unsigned char plen, unsigned char hop_count, | |
109 | unsigned short seqno, const unsigned char *id); | |
110 | ||
111 | #endif |