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core/net: Added support for "bridge mode".

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"Bridge mode" allows devices to more easily send 802.15.4 packets as if
they were a different device. It also turns off any packet filtering
that may be implemented at layer 2. It works by allowing
`PACKETBUF_ADDR_SENDER` to be set earlier in the stack.

This is useful for implementing 6LoWPAN-ethernet bridges.

Enabled via setting `NETSTACK_CONF_BRIDGE_MODE` to 1. Disabled by
default.
This commit is contained in:
Robert Quattlebaum 2011-03-21 14:25:55 -07:00
parent 4e40cb8a8d
commit c0a693672c
4 changed files with 17 additions and 0 deletions
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3
core/net/mac/cxmac.c
View file

@ -429,7 +429,10 @@ send_packet(void)
/* Create the X-MAC header for the data packet. */
#if !NETSTACK_CONF_BRIDGE_MODE
/* If NETSTACK_CONF_BRIDGE_MODE is set, assume PACKETBUF_ADDR_SENDER is already set. */
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, &rimeaddr_node_addr);
#endif
if(rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &rimeaddr_null)) {
is_broadcast = 1;
PRINTDEBUG("cxmac: send broadcast\n");