adamdunkels
f8c804e28b
ntikiMAC: a new radio duty cycling mechanism that uses a combination
...
of link-layer and MAC-layer mechanisms to achieve a very low power
consumption: during idle listening the radio is switched off between
99.2% and 99.6% of the time. One unicast transmission typically adds
between 0.07% and 1.2% additional radio time, depending on packet
size.
ContikiMAC uses the standard IEEE 802.15.4 message format and adds no
additional headers.
ContikiMAC is simple: it uses periodic two-shot channel sampling
during idle listening to keep the radio on-time down. Transmissions
are done with repeated transmissions until a link-layer ACK is
received.
2010-02-18 21:26:15 +00:00
adamdunkels
f5c48751b5
Reworked 802.15.4 header creation and parsing so that it works regardless of the size of the rimeaddr_t typedef
2010-02-18 21:00:28 +00:00
adamdunkels
2fbf21b2b3
Refactored the phase optimization functionality into a separate module
2010-02-18 20:58:59 +00:00
adamdunkels
515a391ee4
Removed left-over debug printfs
2010-02-15 23:31:05 +00:00
dak664
bb9afb4fb1
Remove compiler warning
2010-02-15 20:49:38 +00:00
adamdunkels
4bb0375251
Buffer name definition bugfix
2010-02-15 19:23:54 +00:00
adamdunkels
9bb149ca13
Bugfix by Raimondas Sasnauskas: TCP SYN duplicate receptions in the SYN_RCVD state was not correctly handled
2010-02-15 18:03:07 +00:00
adamdunkels
d67d1f7340
Major bugfix, found by Raimondas Sasnauskas: the TCP periodic timer was not started when a new connection request arrived. If there were no other active TCP connections, this means that the SYNACK would never be retransmitted, potentially leading to a forever stale TCP connection.
2010-02-09 12:58:53 +00:00
adamdunkels
4a522c96dd
Added debugging statements for packet drops
2010-02-08 21:59:49 +00:00
adamdunkels
2b6a651233
Added missing include, made debug statement more explicit
2010-02-08 21:59:21 +00:00
adamdunkels
2eba08e8f6
Made queuebuf statistics configurable, and off by default
2010-02-08 21:10:32 +00:00
adamdunkels
b98f7d891f
Bugfix: added missing queuebuf allocation
2010-02-06 20:50:24 +00:00
adamdunkels
671216c558
No need to clear the headers now that we explicitly save a queuebuf when sending fragments
2010-02-06 17:07:43 +00:00
adamdunkels
b6647b5630
Turns out that with cxmac, clearing the header after sending a packet is not enough to make fragmentation work. Instead, we allocate a queuebuf and restore the packet after from the queuebuf after sending it.
2010-02-06 09:42:49 +00:00
adamdunkels
494e692d0b
Bugfix: clear the header after sending a packet solves a problem with fragmentation; also prod the watchdog since fragment transmissions can take a long time with some low-power MAC protocol
2010-02-06 07:49:58 +00:00
adamdunkels
a68b4c40c4
Added a function to clear only the header part of the packetbuf
2010-02-06 07:48:52 +00:00
oliverschmidt
e88d209214
Adjusted process name to title case.
2010-02-05 19:13:05 +00:00
nifi
a1199721a6
Changed to use separate Contiki event type for ICMP6 notifications
2010-02-05 12:43:36 +00:00
oliverschmidt
5e66abda50
Initialize lastport in all cases it is defined.
2010-02-04 21:33:51 +00:00
adamdunkels
d8b0625e21
Bugfix: lastport must be defines both when UIP_ACTIVE_OPEN or UIP_UDP are defined (thanks Oliver!)
2010-02-04 21:14:45 +00:00
adamdunkels
7bcb106fa9
Disable the stream mode for TCP packets since it does not seem to work reliably with cxmac
2010-02-04 18:57:33 +00:00
adamdunkels
13f6673d04
Bugfix: drop incoming TCP and UDP packets where port numbers are zero
2010-02-04 11:17:42 +00:00
adamdunkels
d7b7b05d0e
Moved the neigbor_init() call to the collect module, since it is the only one that currently uses it
2010-02-03 20:38:33 +00:00
adamdunkels
75e1c0c8c7
Include contiki-conf.h to let the MAC channel check rate be configurable
2010-02-03 16:45:12 +00:00
adamdunkels
06d17c7e1c
Remove unused rtimer code
2010-02-03 16:44:43 +00:00
adamdunkels
4bffd277f5
Don't set the stream bit on outgoing TCP packets for now - it doesn't seem to play well with IPv6 and X-MAC
2010-02-03 16:44:19 +00:00
adamdunkels
36db5eb70b
Added debug printout
2010-02-03 01:18:24 +00:00
adamdunkels
e419eb3cc5
Retransmit packet if it didn't receive a MAC layer ack
2010-02-03 01:17:54 +00:00
adamdunkels
d68af249ec
Added a MAC layer return value that informs the caller that a packet did not receive a MAC layer acknowledgement
2010-02-03 01:17:32 +00:00
adamdunkels
4bc4f033e8
Increase the trickle resend interval for router advertisements
2010-02-03 01:13:17 +00:00
adamdunkels
181213124b
Added a configuration option for setting the MAC channel check rate (which must be a power of two). The configuration is independent of the MAC protocol.
2010-02-02 23:28:58 +00:00
adamdunkels
f66cd6d44e
Increased the forwarding queue to six packets to improve collection robustness
2010-02-02 21:44:05 +00:00
adamdunkels
901a128e7f
Reconfigured the timeouts to work better on top of a power-cycling radio mechanism
2010-02-02 21:12:29 +00:00
adamdunkels
28052c655f
Removed exit() calls that were unadvertedtly left in from testing
2010-02-02 21:10:38 +00:00
adamdunkels
0db31db624
Moved declarations to the start of each function
2010-02-02 21:09:06 +00:00
adamdunkels
fcf60e9260
Removed the csma_init declaration in the mac_driver struct since it isn't needed and it breaks sdcc
2010-02-02 20:45:58 +00:00
adamdunkels
cc2be0f111
Remove compiler warnings
2010-02-02 16:33:07 +00:00
adamdunkels
88c661b0c2
Rewrote the netif time code so that is avoids the use of floating point numbers; some code style fixes
2010-02-02 16:32:03 +00:00
adamdunkels
1a13d25d33
Revised version of the X-MAC implementation that uses a ctimer instead
...
of an rtimer for the periodic radio duty cycling. The benefit of this
implementation is that it leaves an rtimer free for user tasks. The
drawback is a slightly higher idle power consumption. This new version
is based on the current rtimer-based X-MAC.
2010-01-31 18:44:23 +00:00
adamdunkels
e4168db633
Bugfix: deallocate queuebuf only if there was no collision
2010-01-31 13:55:36 +00:00
adamdunkels
388c5d4244
Made the sicslowpan MAC layer reachable from outside modules
2010-01-28 13:50:51 +00:00
adamdunkels
2ae7ed827c
Increase the default X-MAC channel check rate to 4 Hz instead of 2 Hz
2010-01-28 13:40:47 +00:00
adamdunkels
f94d6df6f0
Bugfix: copy the originator address from the packetbuf into a local variable to avoid it being overwritten
2010-01-27 08:12:56 +00:00
adamdunkels
8430dab039
Typecast to fix nightly build problem
2010-01-27 07:36:31 +00:00
adamdunkels
9e5823f060
Made retransmission timeout configurable
2010-01-26 10:19:26 +00:00
adamdunkels
b728c0927c
Made number of duplicate announcements configurable
2010-01-26 10:18:55 +00:00
adamdunkels
cc3f609eaa
Bugfix for alignment issue. Added mechanism that allows five duplicate announcements before suppressing one's own.
2010-01-25 13:55:17 +00:00
adamdunkels
71ffde578e
Moved route_init() into mesh instead of the generic rime initialiation
2010-01-25 13:54:26 +00:00
adamdunkels
423e37f426
Added parameter to ipolite that specifies how many dups that are acceptable, before suppressing one's own packet
2010-01-25 13:54:06 +00:00
adamdunkels
0b58ca3b22
Bugfix: split full size TCP segments if they match the MSS definition, not only the buffer size definition
2010-01-25 13:53:15 +00:00
