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Author SHA1 Message Date
adamdunkels
a8d8b6d31d Improved parent management: parent neighbor is retained until a better neighbor is found (with 1 ETX less than parent). Don't drop parent neighbors when loop is detected (loops are transient anyway). 2010-04-01 10:45:21 +00:00
adamdunkels
d7457bc340 Improved parent management: parent neighbor is retained until a better neighbor is found (with 1 ETX less than parent). Don't drop parent neighbors when loop is detected (loops are transient anyway). 2010-04-01 10:03:19 +00:00
adamdunkels
add426de4b Bugfixed stream mode: node listens 100% for 0.5 seconds in stream mode. Naming change: is_listening changed is_snooping. 2010-04-01 10:02:04 +00:00
adamdunkels
5b121b4829 Set stream bit only on non-FIN TCP segments 2010-04-01 10:01:01 +00:00
adamdunkels
b43f7830b3 Fine-tuned the timing and phase lock optimization 2010-03-31 20:27:15 +00:00
adamdunkels
4e33112d3e Guard against malformed broadcast announcements 2010-03-31 12:17:24 +00:00
adamdunkels
877eb2fbe9 Fiddled with the timing 2010-03-31 11:54:38 +00:00
fros4943
3bd07ea55a bugfix: refresh correct source route 
+
refreshing gateway route whenever data is received via a gateway
 2010-03-31 09:38:42 +00:00
adamdunkels
bcfa80102d Had previously not included the waiting time that the CC2420 introduces when sending a packet. Also increased the smallest packet size, just to be on the safe side. 2010-03-30 23:01:32 +00:00
adamdunkels
226abb8ec3 Removed non-existant include file 2010-03-29 22:10:03 +00:00
adamdunkels
4e3268e2e2 Added function that removes the header 2010-03-29 21:53:04 +00:00
adamdunkels
4c3b69dc07 Configuration parameter for number of MAC-layer retransmissions 2010-03-29 21:52:25 +00:00
adamdunkels
9c58768b59 Extend packet size after creating 802.15.4 header; prepare radio chip with packet before waiting for neighbor phase to make phase wait time deterministic 2010-03-29 21:51:36 +00:00
adamdunkels
b4b7e942b6 Back off a guard time for every non-ack packet 2010-03-29 21:50:01 +00:00
oliverschmidt
315e446584 Adjusted formal parameter to single existing actual parameter. 2010-03-29 20:26:14 +00:00
fros4943
0fcbfae836 updated function: has_value argument was missing 2010-03-29 12:13:35 +00:00
fros4943
671629dea0 moved packet_sent function, it was in a HC06-specific unit 2010-03-29 11:48:09 +00:00
joxe
bd6cd03c1d moved prefix to avoid compiler warning 2010-03-26 15:12:57 +00:00
nifi
9508d2c4d7 * Added configurable default number of transmissions for CSMA to use when not specified using packetbuf attributes (CSMA_CONF_MAX_MAC_TRANSMISSIONS). 
* Renamed packetbuf attribute PACKETBUF_ATTR_MAX_MAC_REXMIT to PACKETBUF_ATTR_MAX_MAC_TRANSMISSIONS where value 0 (attribute not set) means that default number of transmissions should be used.
 2010-03-26 12:29:29 +00:00
joxe
bec1ccc57d added support for all UDP port compressions in hc06 2010-03-26 10:28:51 +00:00
nifi
0ec8d499e4 Bug fix: only call subscriber if set 2010-03-25 19:30:44 +00:00
adamdunkels
a4f9e62295 Added a parameter to collect_open() that specifies whether or not the node should be a router for packets, or only an originator of packets. Updated the collect module to the new annoucement API. 2010-03-25 08:51:07 +00:00
adamdunkels
2559e27414 API change to the announcement module: an annoucement can now be registered without a value. Such announcements are never transmitted to neighbors, until the announcement's value is set. 2010-03-25 08:49:56 +00:00
adamdunkels
4d68bdf74b Bugfix and addition by Dogan Yazar: psock_readbuf() shouldn't wait for a full buffer (which might never happen); a new function for sending strings that batches data and sends full buffers instead of individual strings. 2010-03-24 21:03:32 +00:00
nifi
c623616afd Neighbor state notification also when adding new neighbors 2010-03-24 16:29:45 +00:00
nifi
052c8db9f9 Added option for neighbor state changed notifications 2010-03-24 16:16:33 +00:00
joxe
4a6c6b0534 added route_rm_by_nexthop and small code cleanup 2010-03-23 14:21:04 +00:00
fros4943
95e870cc46 bugfix: structs should be declared static 2010-03-22 11:32:29 +00:00
nvt-se
0eae63b29a Set a higher start ETX. Avoiding adding a neighbor after a failed packet transmission. 2010-03-19 16:55:29 +00:00
adamdunkels
9d06d84255 Renamed the neighbor module to collect-neighbor, as it is only used by the collect module and is not a generic neighbor module 2010-03-19 13:25:15 +00:00
adamdunkels
49009e9cbd Extend the length of announcement packets if they are too short 2010-03-19 13:24:58 +00:00
adamdunkels
2e8bfa5d9a Include new broadcast-announcement and renamed collect-neighbor in compilation 2010-03-19 13:21:24 +00:00
adamdunkels
f2c9b3e813 Remove old neighbor.h inclusion 2010-03-19 13:20:40 +00:00
adamdunkels
3a5be4a7e4 Added broadcast announcement module and collect-neighbor module 2010-03-19 13:17:55 +00:00
adamdunkels
14453e9fb7 Slight API change to support bump functionality 2010-03-19 13:17:31 +00:00
adamdunkels
7b0606cd58 Renamed the neighbor module to collect-neighbor, as it is only used by the collect module and is not a generic neighbor module 2010-03-19 13:17:00 +00:00
adamdunkels
137e02baac Added a bump method that tells the announcement module that a value has changed sufficiently much for it to be pushed out quicker 2010-03-19 13:16:11 +00:00
adamdunkels
17db783fb0 Broadcast announcement back-end that sends announcement data as broadcasts, with increasing transmission intervals 2010-03-19 13:15:19 +00:00
nifi
7f7922a10d typos 2010-03-19 12:54:38 +00:00
joxe
cf9acf4748 made it possible to have zero contexts to avoid stateful compression in hc06 2010-03-19 08:15:20 +00:00
joxe
17a721a7e4 fixed buggy define for Traffic class and Flowlabel compression 2010-03-17 20:57:25 +00:00
adamdunkels
115b3a7c5c Minor timing bugfix: the time between channel checks should not include the time required for the channel check itself 2010-03-17 18:24:06 +00:00
adamdunkels
efeb9944fa Increase the required non-activity periods before turning off the radio; remove the strict phase requirement (which messes up things with low-power streaming) 2010-03-17 16:35:52 +00:00
nvt-se
1a9e00ab78 Purge neighbors that go over a configurable ETX limit. Increase the no-ACK penalty. 2010-03-17 15:08:46 +00:00
nvt-se
4e0ceedc47 Enabled external neighbor removal 2010-03-17 15:00:52 +00:00
fros4943
55f780ec19 removed debugging output 2010-03-17 14:36:46 +00:00
joxe
4f27fcf766 added ipaddr variable if not UIP_ROUTER is defined 2010-03-17 12:30:25 +00:00
joxe
e8916fe01f added hooks for adding an external header compressor 2010-03-17 12:08:59 +00:00
joxe
d113577a8e made UIP_ND6_SEND_RA configurable from platforms and projects 2010-03-16 18:27:22 +00:00
adamdunkels
36b995cc9a Reenabled announcement support 2010-03-16 18:12:34 +00:00
adamdunkels
9be1a65211 Don't set the RELIABLE flag on incoming packets with the ack requested flag set, since it is set on most packets even if they aren't reliable 2010-03-16 18:11:58 +00:00
adamdunkels
b1feac5a00 Bugfixes in low-power streaming mode, and re-added support for announcements. These now use the low-power streaming mode so that active listening for announcments have a radio duty cycle of 16% rather than 100% 2010-03-16 18:11:13 +00:00
nifi
6b7ec2d002 removed uip_router 2010-03-16 15:45:20 +00:00
nifi
75091661e6 fixed typo 2010-03-16 15:41:00 +00:00
joxe
b4adc6bcb5 added fallback interface and removed uip_router 2010-03-16 15:35:03 +00:00
joxe
2b44f809fb added support for extending route entries 2010-03-16 14:11:46 +00:00
joxe
453cf7f2e6 refactoring of hc06 code 2010-03-16 10:21:04 +00:00
nvt-se
7f687b99e6 Debug off by default 2010-03-15 19:22:29 +00:00
joxe
fd3d6c44d0 integration of new uip6 code from Mathilde and Julien - adds routing and improved interface handling 2010-03-15 16:41:24 +00:00
adamdunkels
a9bad71fbd Increased the number of bits that repressent the MAX_RETRANSMITS attribute to allow for more than 7 hop-by-hop retransmissions 2010-03-14 23:01:12 +00:00
adamdunkels
7bab9316da Two major changes: 
* Low-power streaming. Experimental support for a low-power mode which
  allows rapid exchange of packets with a 16% duty cycle. Does not
  seem to function correctly yet though.

* Phase locking. When the phase of a neighbor has been detected, the
  sender assumes that the neighbor will keeps it phase and does not
  send more strobes than necessary to hit the receiver's channel
  check - even if the receiver does not acknowledge the reception of
  the strobes when it should have been awake. Instead, the sender
  stops strobing and tries again at a later time.
 2010-03-14 22:59:23 +00:00
oliverschmidt
def540e6c0 Avoid newlines in macro expansions as cc65 doesn't support them between the macro name and the open parenthesis of the arguments. 
There were btw other even longer lines with expansions of the same macro already present.
 2010-03-14 12:13:54 +00:00
joxe
e8bd53cfd8 added typedef of icmp6_error 2010-03-13 09:25:24 +00:00
dak664
0236c6e725 Leave compiler warning for 16 bit timers 2010-03-12 17:51:07 +00:00
joxe
4c2daf9886 started integration of Mathildes and Juliens new uip6 code + made some ND timers configurable 2010-03-12 16:19:19 +00:00
dak664
7c5eed6bda Add includes needed by AVR-gcc, fix compiler warning 2010-03-12 15:23:57 +00:00
dak664
52c9f4bde3 Remove compiler warning 2010-03-12 15:21:14 +00:00
nifi
2cf0fb9cce Changed to use short address mode with short rime addresses 2010-03-12 14:49:21 +00:00
nvt-se
6be0bac1a1 minor include fix + added documentation 2010-03-12 13:40:13 +00:00
nvt-se
881fac7f50 fixed comment 2010-03-12 13:25:14 +00:00
nvt-se
6ce15b14c9 prepend net/ to include paths 2010-03-12 13:23:50 +00:00
nvt-se
c316fc2fa9 Make it possible to provide feedback to the neighbor modules 2010-03-12 13:20:13 +00:00
nvt-se
814dd8bf59 Added generic modules for neighbor information. 2010-03-12 13:19:45 +00:00
joxe
d75ec2da53 fixed so that uip6 sends icmp6 errors from correct source when acting as router - improves support for tracert, etc. 2010-03-11 18:07:37 +00:00
adamdunkels
90bb63a383 Set the (correct) packet attribute to let the MAC layer perform retransmissions 2010-03-09 20:40:50 +00:00
adamdunkels
4b60301727 Don't set the ack flag for broadcast packets 2010-03-09 20:40:11 +00:00
adamdunkels
17f6b3a324 Simplified the structure of the code 2010-03-09 20:38:55 +00:00
adamdunkels
d0e6436a20 Don't call up the netstack if the transmission was deferred 2010-03-09 20:37:02 +00:00
c_oflynn
dc3e6c1877 Fix TC/FL errors in hc-06. Need to verify further 2010-03-09 16:19:44 +00:00
joxe
48a9bff889 added support for dropping packets if hop limit is reached 2010-03-09 15:50:15 +00:00
c_oflynn
1d483a5da4 Fix UDP compression to work per hc-06. More commits to come to fix Traffic Class stuff... 2010-03-09 15:18:03 +00:00
adamdunkels
edda6dd86c Minor bugfix: don't subtract collisions and deferrals from the number of transmissions 2010-03-09 13:23:58 +00:00
adamdunkels
5a6fc2ade0 Bugfix: set up rtmetric before starting to announce it. Set the number of MAC layer retransmissions correctly 2010-03-09 13:21:28 +00:00
adamdunkels
2c3d3e3d73 Bugfix: handle deferred transmissions correctly (don't count them) 2010-03-09 13:20:08 +00:00
adamdunkels
79722b4247 Rework of the timing conditions of ContikiMAC: the old timing did not work well on real hardware, the new one seems to work better 2010-03-09 13:19:05 +00:00
nvt-se
96eb20d235 forward arguments even if REXMIT is not set 2010-03-04 14:17:43 +00:00
dak664
c65e09ceb2 Remove compiler warnings 2010-03-02 15:41:23 +00:00
nifi
5e43a6998b Replaced old framer (framer_get/framer_set) with new NETSTACK style configuration. Added nullrdc-framer that is a nullrdc with framer support. 2010-03-01 13:30:21 +00:00
nifi
0c084b8c68 added random init of sequence number 2010-03-01 13:17:01 +00:00
adamdunkels
524625dfd2 Removed debug string names of packet attribtues 2010-02-28 20:20:19 +00:00
adamdunkels
410d860a93 Improved handling of neighbor phase estimation: instead of busy-waiting while waiting for neighbor's phase, the new code schedules a timer just before neighbor wakes up 2010-02-28 20:19:47 +00:00
adamdunkels
e6fceb7200 Added MAC-layer return value to indicate that a packet transmission was deferred 2010-02-28 20:18:30 +00:00
adamdunkels
ec928a2a19 Make max queueing time depend on retransmission timeout 2010-02-28 14:15:58 +00:00
adamdunkels
e06acc4525 Prod the watchdog if waiting for along time 2010-02-28 14:15:16 +00:00
adamdunkels
74da90a06b Don't count collisions as transmissions 2010-02-28 10:07:17 +00:00
adamdunkels
f95a6cce85 Added function for obtaining packet queue length 2010-02-28 09:20:32 +00:00
adamdunkels
8fe15f7b45 New packet attribute for specifiying MAC layer retransmissions; reorder and commented packet attributes 2010-02-28 09:19:43 +00:00
adamdunkels
970a9eb9c7 Increased neighbor lifetime to allow for longer neighbor announcement intervals 2010-02-28 09:19:04 +00:00
adamdunkels
7165a3866f Significant rework of the Contiki data collection protocol: 
* the new version makes use of MAC-layer feedback so that bad paths
  can be identified quicker and then avoided.

* the new code uses transport layer ACKs that contain feedback from
  the collect protocol: when a packet cannot be forwarded due to lack
  of resources, the ACK contains a flag that indicates that the packet
  could not be forwarded. ACKs also contain the routing metric of the
  sender, which improves agility in face of rapid path changes.

* loop detection and management has been improved: with higher path
  metric agility, the system is more prone to short-lived routing
  loops. Instead of dropping looping packets, the new version adjusts
  the routing metric for the routes that exhibit loops so that the
  risk for future loops is reduced.

* make use of packet attributes to inform the MAC layer of how many
  times packets should be retransmitted.
 2010-02-28 09:18:01 +00:00
adamdunkels
b6b4941871 Made the number of MAC-layer retransmissions configurable on a per-packet basis, via a packet attribute 2010-02-28 08:35:16 +00:00
adamdunkels
ed88f487c8 Improved detection of link-layer ACKs; increased the time ContikiMAC waits when it has detected a link-layer ACK; increased the number of silence periods required to detect a CCA false positive 2010-02-28 08:33:21 +00:00
adamdunkels
fa1a96636e Bugfix: the compile-time check for UIP_LLADDR_LEN previously generated a run-time error, when it should have generated a compile-time error 2010-02-28 08:30:39 +00:00
adamdunkels
ba0e50a7b7 Set the default number of MAC layer retransmissions for IPv6 packets to 2 2010-02-28 08:29:42 +00:00
joxe
0ab2bc9a31 upgraded sicslowpan to hc-06 - no 48 bit multicast compression support yet 2010-02-25 15:50:58 +00:00
nifi
b50d47fb80 added missing function in sicslowmac_driver 2010-02-23 22:45:11 +00:00
nifi
1cfcc8a73a Removed the combined name of CSMA and NETSTACK_RDC. The name of NETSTACK_RDC can be accessed separately if needed. 2010-02-23 20:42:45 +00:00
nifi
c20047f657 Changed the network stack to use different structures for the different layers (network_driver, mac_driver, rdc_driver, radio_driver). This helps to avoid incorrect configuration. 2010-02-23 20:09:11 +00:00
adamdunkels
bb62749de7 Made debug printfs optional 2010-02-23 18:49:58 +00:00
adamdunkels
0ab2ba433f Bugfix: the wrong callback pointer was passed to higher layers. 2010-02-23 18:49:45 +00:00
adamdunkels
ed52586e18 Rework of parts of the ContikiMAC code based on input from experimental results. When channel check is triggered because of a false positive, the new version checks the radio several times to make sure that there really is an incoming packet. Otherwise, the radio is switched off. Cleaned up and removed old unused code. Added a few temporary debugging mechanisms and functions. 2010-02-23 18:49:05 +00:00
adamdunkels
ca0417a923 Added the MAC layer callback functionality so that the Rime network layer gets information from the MAC about the status of sent packets: were they successfully transmitted, or was there a collisions? How many retries were there? 2010-02-23 18:38:05 +00:00
adamdunkels
f10eedab3e Added debug printout 2010-02-23 18:37:15 +00:00
adamdunkels
2d13fecea7 Improved backoff management: timer is now doubled on every transmission, until the using module calls the neighbor_discovery_start() function again. Don't cancel the transmission even if a lower value arrives (this fixes a problem with multi-hop ETX propagaion). 2010-02-23 18:36:50 +00:00
adamdunkels
0eade2886c Better loop handling: when a loop is detected, the neighbor to which the packet was originally sent gets an inflated ETX; made sure that collect without announcments work; increased timeouts, to work nicer in larger networks 2010-02-23 18:35:23 +00:00
adamdunkels
a4d9d6651b Added the option to specify the old value to observers so that they can determine if the announcement should be sent out quicklier than otherwise 2010-02-23 18:32:44 +00:00
adamdunkels
b746b7fc06 Reworked the Rime/Chameleon interface so that packets now always hit Rime before Chameleon. Chameleon is now only called by Rime. This makes packet sniffing easier, and allows for sniffing packets after their header has been processed by Chameleon, thereby making per-packet power profiling much easier to implement 2010-02-23 18:29:53 +00:00
adamdunkels
d8cce42d28 Set the default radio driver to nullradio 2010-02-23 18:28:04 +00:00
adamdunkels
0b2b7bcdba Removed inadvertedly left-over include file 2010-02-18 23:52:34 +00:00
adamdunkels
5cf3b83733 Common initialization code for the netstack 2010-02-18 23:15:26 +00:00
adamdunkels
f49ebfe1c4 Temporarily disabled rime route udp because it breaks with newest MAC interfaces 2010-02-18 21:53:08 +00:00
adamdunkels
e34eb54960 A work-in-progress rework of the Contiki MAC and radio layers. The 
main ideas are:

* Separates the Contiki low-layer network stack into four layers:
  network (e.g. sicslowpan / rime), Medium Access Control MAC
  (e.g. CSMA), Radio Duty Cycling RDC (e.g. ContikiMAC, X-MAC), and
  radio (e.g. cc2420).
* Introduces a new way to configure the network stack. Four #defines
  that specify what mechanism/protocol/driver to use at the four
  layers: NETSTACK_CONF_NETWORK, NETSTACK_CONF_MAC, NETSTACK_CONF_RDC,
  NETSTACK_CONF_RADIO.
* Adds a callback mechanism to inform the MAC and network layers about
  the fate of a transmitted packet: if the packet was not possible to
  transmit, the cause of the failure is reported, and if the packets
  was successfully transmitted, the number of tries before it was
  finally transmitted is reported.
* NULL-protocols at both the MAC and RDC layers: nullmac and nullrdc,
  which can be used when MAC and RDC functionality is not needed.
* Extends the radio API with three new functions that enable more
  efficient radio duty cycling protocols: channel check, pending
  packet, and receiving packet.
* New initialization mechanism, which takes advantage of the NETSTACK
  #defines.
 2010-02-18 21:48:39 +00:00
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
adamdunkels
7615a6cf47 Bugfix by Henrik Mäkitaavola: check that ICMP6 process is defined before invoking it 2010-01-25 13:37:05 +00:00
adamdunkels
4f3e8d565c Added a simple CSMA (Carrier Sense Multiple Access) mechanism that 
works on top of an underlying duty cycling mechanism. The CSMA layer
retransmits packets that could not be sent because of a collision was
detected.
 2010-01-25 11:46:44 +00:00
adamdunkels
7ad93e5d18 Added a field to the struct mac interface: 
channel_check_interval(). This function returns the interval by which
the duty cycling mechanism checks the radio channel for activity. It
is used by higher layer mechanisms to determine suitable timeouts for
retransmissions.
 2010-01-25 11:43:32 +00:00
fros4943
26e0bab11a bugfix: alignment problem caused by previous bugfix 2010-01-21 11:39:35 +00:00
fros4943
3db4f36c3e removed compiler specific attribute 2010-01-20 09:58:16 +00:00
adamdunkels
c962f49516 Alignment bugfix 2010-01-18 21:27:21 +00:00
adamdunkels
743e93e650 Do not remove encounters - there is no need to, as they are only an optimization 2010-01-14 20:14:03 +00:00
nvt-se
a03e899c27 Signal the result of transmissions attempts made in the mesh module. Patch from Moritz Struebe 2009-12-18 14:57:15 +00:00
nifi
7b2b93e6e6 clear transmission flag if send failed 2009-12-18 14:49:42 +00:00
adamdunkels
f4e6758b22 Use RTIMER_NOW() instead of rtimer_arch_now() 2009-12-09 18:08:26 +00:00
adamdunkels
2f105e933a Variable xmac_is_on was used both in interrupt and non-interrupt contexts and needs to be volatile 2009-12-06 23:29:38 +00:00
adamdunkels
53457eb1f0 Fixed compilation warning 2009-12-06 17:10:54 +00:00
adamdunkels
8bcc838d8a Bugfix: don't set the 'we are sending' flag until we are actually sending 2009-12-06 17:05:45 +00:00
adamdunkels
6897270289 Bugfix to the Contiki LPP encounter timing code: encounters are now 
properly timed.
 2009-12-06 13:18:32 +00:00
adamdunkels
822149f943 Significant improvements to the Contiki X-MAC: 
* the code is simplified, particularly the duty cycling logic
* old unused code has been removed
* Contiki X-MAC now listens before sending a strobe to avoid MAC-level
  collisions
* broadcasts are sent directly, without strobes, reducing the power
  consumption of receivers
* turn off radio for 1 ms between sending a strobe and expecting the
  strobe ack
 2009-12-06 13:16:59 +00:00
adamdunkels
cef2e65c9b Added an error type for signalling a MAC-layer collision 2009-12-05 21:49:51 +00:00
adamdunkels
4a1a823a49 Code style fix 2009-12-05 13:29:41 +00:00
fros4943
a1b4597b95 fixed announcement compilation error 2009-11-27 14:27:50 +00:00
adamdunkels
aeefa75304 Fixed alignment problems in announcement packet creation 2009-11-27 12:49:27 +00:00
nvt-se
116771adbc made the route cache timeout configurable 2009-11-20 14:35:58 +00:00
nifi
1f2c226d8e * Added ctimer_restart(). Patch by Moritz Struebe. 
* Added ctimer_expired().
 2009-11-19 18:32:05 +00:00
nifi
bb0ffe0478 moved rime initialization into rime router so it is easier to switch IPv6 routing module 2009-11-18 13:51:55 +00:00
fros4943
0034fd7bca generic return values for sent packet 2009-11-13 10:09:02 +00:00
fros4943
9b20f11cd8 chameleon returns 1 only on successful rime_output() 2009-11-13 09:14:52 +00:00
fros4943
583dd11c55 rime_output() now returns RIME_OK or RIME_ERR depending on the MAC return value. 
this patch may affect Rime sniffers running on top of MAC protocols that do not yet return generic MAC return values
 2009-11-13 09:10:24 +00:00
fros4943
26bb5ecd21 added radio and MAC generic return values to allow applications finding out whether the packet was transmitted 2009-11-13 08:59:22 +00:00
joxe
5b0b36c39e accept messages to all routers if UIP_CONF_ROUTER is set. 2009-11-12 14:05:42 +00:00
adamdunkels
60a3fc0cae Fixed alignment issue 2009-11-09 08:22:40 +00:00
adamdunkels
56218aba3b Made rimeaddr_t pointers const where they should be. 2009-11-08 19:40:16 +00:00
adamdunkels
70fc23ac7e Enable stream mode by default, remove LED debug mode 2009-11-04 16:02:45 +00:00
adamdunkels
5aab2eb77d A simple addition with significant performance implications: 
sicslowpan tags TCP packets with the PACKETBUF_ATTR_PACKET_TYPE_STREAM
flag, which makes the underlying power-saving MAC layer keep the radio
on for some time after transmitting the packet. This allows reply
packets to be processed directly, significantly increasing TCP latency
and throughput.
 2009-11-02 11:58:56 +00:00
adamdunkels
c7a91ad4a2 Bugfix: UIP_TCP_BUF -> BUF 2009-10-27 23:09:58 +00:00
adamdunkels
631af06c7c Bugfix: Active TCP connections in uIP are made by first setting up the 
TCP connection state, then poll uIP to send out the first SYN. Until
now, however, the SYN was not sent as part of the poll, but at the
first retransmission. This is now fixed.
 2009-10-27 22:34:08 +00:00
zhitao
1913e1a936 prevent neighbor ETX from wrap-over 2009-10-22 13:11:20 +00:00
nifi
df32fde58c Made max number of neighbors configurable 2009-10-21 21:25:10 +00:00
adamdunkels
91579fbaab Removed debug strings to save ROM 2009-10-20 08:06:43 +00:00
nifi
223fa1c8e5 added missing include 2009-10-20 07:42:03 +00:00
adamdunkels
a5ea7ef966 Increased default number of queue buffers 2009-10-19 21:28:59 +00:00
adamdunkels
4d9b05c2ce Increased default header size in packetbuf to accomodate 802.15.4 headers 2009-10-19 21:28:11 +00:00
adamdunkels
7cdfbca973 Alignment problems with announcements fixed 2009-10-19 21:27:02 +00:00
adamdunkels
9ec57d61ad Added MAC layer framing support to X-MAC so that packets now are standard 802.15.4 frames 2009-10-19 20:53:56 +00:00
adamdunkels
4de1816e36 Added a new module called "framer" that creates MAC level frames to 
the packetbuf from packet attributes. Two framer modules are included,
one that creates 802.15.4 frame headers, and one that creates a
minimal "nullmac"-style header that only contains the link-local
addresses.
 2009-10-19 18:30:03 +00:00
nifi
ae226c5917 * Set sender and receiver packet attributes on incoming packets 
* Added link layer destination check
 2009-10-19 11:25:54 +00:00
adamdunkels
10c873018d Ensure that DEFAULT_PERIOD is != 0, to avoid a modulo with 0 2009-10-19 06:39:29 +00:00
adamdunkels
f25856a387 Hack to be able to receive UDPv4 multicast packets 2009-10-18 22:03:44 +00:00
adamdunkels
fb037e0afb Added function for sending an UDP packet to a specified IP address and port number over an existing UDP connection 2009-10-18 22:02:01 +00:00
adamdunkels
9d26bd663e A new optimization to X-MAC: senders now keep track of when neighbors 
last were known to be awake. When sending a packet, a sender does not
start to send strobes until the neighbor is expected to be awake. This
reduces power consumption for senders and decreases the contention in
the network as there are less packets in the air. Additionally, the
ACK optimization was improved so that data/ack exchanges now are
more efficient.
 2009-10-18 13:19:25 +00:00
nvt-se
31f41d842e * decline route discovery requests if we have one in the air 
* and, by popular demand, switched PRINTF to printf in the debug macro. :-)
 2009-10-08 16:30:26 +00:00
nvt-se
f143227205 made the route discovery packet timeout configurable. 2009-09-29 16:02:28 +00:00
nifi
0ad51b8dcc Moved the link layer destination check to sicslowmac 2009-09-18 16:37:17 +00:00
adamdunkels
1980253ba3 Refresh routes when hearing a packet from a neighbor 2009-09-09 21:10:21 +00:00
adamdunkels
786ed3cf84 Fixed sdcc compiler problem: function pointers cannot be NULL, so added a dummy function instead 2009-09-09 21:09:42 +00:00
adamdunkels
2181e90f69 Added the possibility to switch lpp off. Fixed sdcc compiler issue 2009-09-09 21:09:23 +00:00
adamdunkels
1cafbc6002 sdcc compiler issue fix: compound assignments are not supported, so we use memcpy() instead 2009-09-09 21:08:46 +00:00
nvt-se
4d21a3e203 Don't assume that radio->send turns on the radio automatically. 2009-09-04 10:59:30 +00:00
oliverschmidt
e60db62b10 Added prototype missing for quite some time now - do we need -Werror ? 2009-08-20 20:27:17 +00:00
adamdunkels
522f991f14 Set sender and receiver packet attributes on incoming packets: patch by Gidon Ernst 2009-08-20 18:59:17 +00:00
dak664
c1b7375a5a *** empty log message *** 2009-07-23 16:13:48 +00:00
dak664
2166261890 Separate input and output debug PRINTFs 2009-07-10 13:33:45 +00:00
nvt-se
38fff1b527 mac_driver structure has been changed to include the init function. 2009-06-24 16:31:49 +00:00
nifi
912aba7280 added init function in MAC driver for easier configuration 2009-06-22 11:14:11 +00:00
nvt-se
33909cc2fd made neighbor discovery method configurable. default is announcements. 2009-05-30 19:54:05 +00:00
nvt-se
83f2b9ae57 include ctimer.h, since ctimer's are used in the neighbor_discovery_conn struct. 2009-05-30 19:40:39 +00:00
nvt-se
9277f922f1 fixed some documentation typos. 
also uc -> unicast, stuc -> stunicast.
 2009-05-26 13:58:53 +00:00
nifi
f39d2bd4c6 Fixed link panid for broadcasts to be standard compliant. Ignore packets addressed to other non-broadcast panids. 2009-05-26 12:08:29 +00:00
nvt-se
e2bbdbca9b decrement TTL right after forwarding check. 2009-05-19 11:54:50 +00:00
adamdunkels
5308a09dd3 Added debug output 2009-05-10 21:10:23 +00:00
adamdunkels
02734c9806 Bugfix: must copy the sender and receiver addresses from the packetbuf buffer, otherwise an application program may overwrite them 2009-05-10 21:10:02 +00:00
adamdunkels
fe5a1f1068 Added an optimization option that avoids multiple simultaneous broadcasts from neighbors: when a broadcast is to be sent, a sender does not send until it knows that no other nodes are broadcasting. 2009-05-10 21:09:05 +00:00
adamdunkels
fe30886b37 Added functionality for decaying routes: when a packet is sent over a route, it is decayed. If the route is not refreshed within four packets (with the route_refresh() function, which is called when a new packet arrives), the route is dropped. A route can be decayed at most once per second 2009-05-10 21:08:01 +00:00
adamdunkels
6bf8e0b478 Bugfix by Takahide Matsutsuka: too few items in array, which caused problems with sdcc 2009-05-08 08:52:55 +00:00
zhitao
48d4800f08 removed reference to undefined function in mspgcc 2009-05-06 15:34:28 +00:00
adamdunkels
1d921ddf42 Explicit typecast to avoid compiler problems 2009-05-06 15:07:09 +00:00
adamdunkels
0adceb63b4 Code cleanup; made encounter optimization explicit; added optimization for adaptive off-time, but it currently seems to work bad with broadcasts 2009-05-06 15:06:38 +00:00
adamdunkels
9fff85757d Code cleanup; made strobe transmission time longer again (seems to work better in cooja?) 2009-05-06 15:05:28 +00:00
adamdunkels
a671ea1146 Documentation fix 2009-05-06 15:04:20 +00:00
zhitao
58940ecbf8 minor documentation fixes 2009-05-06 08:37:48 +00:00
adamdunkels
1752b53f74 Refresh routes when a packet is received. Set a conservatively low route timeout (10 seconds). 2009-05-04 11:24:04 +00:00
adamdunkels
c83c5c4c55 Removed automatic refresh of routes from the route_lookup() function and moved it into an explicit route_refresh() function. The previous behaviour was dangerous, since it meant that even bad routes that someone was looking for were considered fresh. Now such routes time out if they are not explictily refreshed (e.g., on a packet reception) 2009-05-04 11:23:30 +00:00