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This is an initial commit of an implementation of the Chameleon

Browse source 
architecture for the Rime stack for Contiki. The Chameleon
architecture separates the header processing from the Rime protocol
logic. Instead of having each protocol create its own part of the
packet header, protocols use packet attributes. Before sending a
packet, a special Chameleon header processing module creates a packet
header from the packet attributes. The same Chameleon module parses
incoming packets and creates packet attributes from the header.

The details are in our SenSys 2007 paper:

Adam Dunkels, Fredrik Osterlind, Zhitao He. An Adaptive Communication
Architecture for Wireless Sensor Networks. In Proceedings of the Fifth
ACM Conference on Networked Embedded Sensor Systems (SenSys 2007),
Sydney, Australia, November 2007.

http://www.sics.se/~adam/dunkels07adaptive.pdf

This is a rewrite of the code that was developed for the paper.
This commit is contained in:
adamdunkels 2008-02-25 02:14:34 +00:00
parent 39abed8672
commit 412facb831
29 changed files with 1357 additions and 159 deletions
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92
core/net/rime/rimebuf.c
View file

@ -33,7 +33,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rimebuf.c,v 1.11 2008/02/24 22:05:27 adamdunkels Exp $
* $Id: rimebuf.c,v 1.12 2008/02/25 02:14:35 adamdunkels Exp $
*/
/**
@ -49,6 +49,34 @@
#include "net/rime/rimebuf.h"
#include "net/rime.h"
struct rimebuf_attr rimebuf_attrs[RIMEBUF_NUM_ATTRS];
struct rimebuf_addr rimebuf_addrs[RIMEBUF_NUM_ADDRS];
const char *rimebuf_attr_strings[] =
{
"RIMEBUF_ATTR_NONE",
"RIMEBUF_ATTR_CHANNEL",
"RIMEBUF_ATTR_PACKET_ID",
"RIMEBUF_ATTR_PACKET_TYPE",
"RIMEBUF_ATTR_EPACKET_ID",
"RIMEBUF_ATTR_EPACKET_TYPE",
"RIMEBUF_ATTR_HOPS",
"RIMEBUF_ATTR_TTL",
"RIMEBUF_ATTR_REXMIT",
"RIMEBUF_ATTR_MAX_REXMIT",
"RIMEBUF_ATTR_NUM_REXMIT",
"RIMEBUF_ATTR_LINK_QUALITY",
"RIMEBUF_ATTR_RELIABLE",
"RIMEBUF_ATTR_ERELIABLE",
"RIMEBUF_ADDR_SENDER",
"RIMEBUF_ADDR_RECEIVER",
"RIMEBUF_ADDR_ESENDER",
"RIMEBUF_ADDR_ERECEIVER",
"RIMEBUF_ATTR_MAX",
};
static uint16_t buflen, bufptr;
static uint8_t hdrptr;
@ -224,4 +252,66 @@ rimebuf_totlen(void)
return rimebuf_hdrlen() + rimebuf_datalen();
}
/*---------------------------------------------------------------------------*/
void
rimebuf_attr_clear(void)
{
int i;
for(i = 0; i < RIMEBUF_NUM_ATTRS; ++i) {
rimebuf_attrs[i].type = RIMEBUF_ATTR_NONE;
}
for(i = 0; i < RIMEBUF_NUM_ADDRS; ++i) {
rimebuf_addrs[i].type = RIMEBUF_ATTR_NONE;
rimebuf_addrs[i].addr = rimeaddr_null;
}
}
/*---------------------------------------------------------------------------*/
void
rimebuf_attr_copyto(struct rimebuf_attr *attrs,
struct rimebuf_addr *addrs)
{
memcpy(attrs, rimebuf_attrs, sizeof(rimebuf_attrs));
memcpy(addrs, rimebuf_addrs, sizeof(rimebuf_addrs));
}
/*---------------------------------------------------------------------------*/
void
rimebuf_attr_copyfrom(struct rimebuf_attr *attrs,
struct rimebuf_addr *addrs)
{
memcpy(rimebuf_attrs, attrs, sizeof(rimebuf_attrs));
memcpy(rimebuf_addrs, addrs, sizeof(rimebuf_addrs));
}
/*---------------------------------------------------------------------------*/
#if !RIMEBUF_CONF_ATTRS_INLINE
int
rimebuf_set_attr(uint8_t type, const rimebuf_attr_t val)
{
rimebuf_attrs[type].type = type;
rimebuf_attrs[type].val = val;
return 1;
}
/*---------------------------------------------------------------------------*/
rimebuf_attr_t
rimebuf_attr(uint8_t type)
{
return rimebuf_attrs[type].val;
}
/*---------------------------------------------------------------------------*/
int
rimebuf_set_addr(uint8_t type, const rimeaddr_t *addr)
{
rimebuf_addrs[type].type = type;
rimeaddr_copy(&rimebuf_addrs[type].addr, addr);
return 1;
}
/*---------------------------------------------------------------------------*/
const rimeaddr_t *
rimebuf_addr(uint8_t type)
{
return &rimebuf_addrs[type].addr;
}
/*---------------------------------------------------------------------------*/
#endif /* RIMEBUF_CONF_ATTRS_INLINE */
/** @} */