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Diffstat (limited to 'babeld/message.h')
| -rw-r--r-- | babeld/message.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/babeld/message.h b/babeld/message.h new file mode 100644 index 000000000..2410a8c30 --- /dev/null +++ b/babeld/message.h @@ -0,0 +1,101 @@ +/* +Copyright (c) 2007, 2008 by Juliusz Chroboczek + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#ifndef BABEL_MESSAGE_H +#define BABEL_MESSAGE_H + +#include "babel_interface.h" + +#define MAX_BUFFERED_UPDATES 200 + +#define BUCKET_TOKENS_MAX 200 +#define BUCKET_TOKENS_PER_SEC 40 + +/* A registry of assigned TLV and sub-TLV types is available at + http://www.pps.univ-paris-diderot.fr/~jch/software/babel/babel-tlv-registry.text +*/ +#define MESSAGE_PAD1 0 +#define MESSAGE_PADN 1 +#define MESSAGE_ACK_REQ 2 +#define MESSAGE_ACK 3 +#define MESSAGE_HELLO 4 +#define MESSAGE_IHU 5 +#define MESSAGE_ROUTER_ID 6 +#define MESSAGE_NH 7 +#define MESSAGE_UPDATE 8 +#define MESSAGE_REQUEST 9 +#define MESSAGE_MH_REQUEST 10 +#define MESSAGE_MAX 10 + +/* Protocol extension through sub-TLVs. */ +#define SUBTLV_PAD1 0 +#define SUBTLV_PADN 1 +#define SUBTLV_DIVERSITY 2 /* Also known as babelz. */ +#define SUBTLV_TIMESTAMP 3 /* Used to compute RTT. */ + +extern unsigned short myseqno; + +extern int broadcast_ihu; +extern int split_horizon; + +extern struct neighbour *unicast_neighbour; +extern struct timeval unicast_flush_timeout; + +void parse_packet(const unsigned char *from, struct interface *ifp, + const unsigned char *packet, int packetlen); +void flushbuf(struct interface *ifp); +void flushupdates(struct interface *ifp); +void send_ack(struct neighbour *neigh, unsigned short nonce, + unsigned short interval); +void send_hello_noupdate(struct interface *ifp, unsigned interval); +void send_hello(struct interface *ifp); +void flush_unicast(int dofree); +void send_update(struct interface *ifp, int urgent, + const unsigned char *prefix, unsigned char plen); +void send_update_resend(struct interface *ifp, + const unsigned char *prefix, unsigned char plen); +void send_wildcard_retraction(struct interface *ifp); +void update_myseqno(void); +void send_self_update(struct interface *ifp); +void send_ihu(struct neighbour *neigh, struct interface *ifp); +void send_marginal_ihu(struct interface *ifp); +void send_request(struct interface *ifp, + const unsigned char *prefix, unsigned char plen); +void send_unicast_request(struct neighbour *neigh, + const unsigned char *prefix, unsigned char plen); +void send_multihop_request(struct interface *ifp, + const unsigned char *prefix, unsigned char plen, + unsigned short seqno, const unsigned char *id, + unsigned short hop_count); +void +send_unicast_multihop_request(struct neighbour *neigh, + const unsigned char *prefix, unsigned char plen, + unsigned short seqno, const unsigned char *id, + unsigned short hop_count); +void send_request_resend(struct neighbour *neigh, + const unsigned char *prefix, unsigned char plen, + unsigned short seqno, unsigned char *id); +void handle_request(struct neighbour *neigh, const unsigned char *prefix, + unsigned char plen, unsigned char hop_count, + unsigned short seqno, const unsigned char *id); + +#endif |