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
4e33112d3e
Guard against malformed broadcast announcements
2010-03-31 12:17:24 +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
fros4943
0fcbfae836
updated function: has_value argument was missing
2010-03-29 12:13:35 +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
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
fros4943
95e870cc46
bugfix: structs should be declared static
2010-03-22 11:32:29 +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
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
fros4943
55f780ec19
removed debugging output
2010-03-17 14:36:46 +00:00
adamdunkels
36b995cc9a
Reenabled announcement support
2010-03-16 18:12:34 +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
dak664
0236c6e725
Leave compiler warning for 16 bit timers
2010-03-12 17:51:07 +00:00
dak664
52c9f4bde3
Remove compiler warning
2010-03-12 15:21:14 +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
dak664
c65e09ceb2
Remove compiler warnings
2010-03-02 15:41:23 +00:00
adamdunkels
524625dfd2
Removed debug string names of packet attribtues
2010-02-28 20:20:19 +00:00
adamdunkels
ec928a2a19
Make max queueing time depend on retransmission timeout
2010-02-28 14:15:58 +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
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
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
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
4a522c96dd
Added debugging statements for packet drops
2010-02-08 21:59:49 +00:00
adamdunkels
2eba08e8f6
Made queuebuf statistics configurable, and off by default
2010-02-08 21:10:32 +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
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
36db5eb70b
Added debug printout
2010-02-03 01:18:24 +00:00
adamdunkels
f66cd6d44e
Increased the forwarding queue to six packets to improve collection robustness
2010-02-02 21:44:05 +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
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
fros4943
26e0bab11a
bugfix: alignment problem caused by previous bugfix
2010-01-21 11:39:35 +00:00
adamdunkels
c962f49516
Alignment bugfix
2010-01-18 21:27:21 +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
nifi
1f2c226d8e
* Added ctimer_restart(). Patch by Moritz Struebe.
...
* Added ctimer_expired().
2009-11-19 18:32:05 +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
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
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
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
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
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
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
oliverschmidt
e60db62b10
Added prototype missing for quite some time now - do we need -Werror ?
2009-08-20 20:27:17 +00:00
nvt-se
38fff1b527
mac_driver structure has been changed to include the init function.
2009-06-24 16:31:49 +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
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
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
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
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
adamdunkels
f5a57a4e54
Fixes by Ward Van Heddeghem (reapplied from versioin 1.24)
2009-04-30 20:21:06 +00:00
adamdunkels
e70cf0c7c6
Rewrite of the collect module. The new version uses a packet queue for outgoing and forwarded packets so that more than one packet can be forwarded at the same time. The new version uses the packetqueue module to maintain the packet queue.
2009-04-29 20:48:57 +00:00
adamdunkels
c489b1118d
New module: packetqueue. The packetqueue module maintains packet queues for other modules.
2009-04-29 20:47:30 +00:00
adamdunkels
c9df0ab123
Bugfix in debug message printout
2009-04-28 14:01:46 +00:00
fros4943
7810d362a6
minor bugfixes: a rucb sender could not immediately after start receiving a bulk transfer
2009-04-16 14:32:01 +00:00
nvt-se
c0fb680f12
simplified code by using udp_broadcast_new.
2009-04-13 19:55:15 +00:00
adamdunkels
f5f52ffd1f
Fixes by Ward Van Heddeghem (VUB)
2009-04-07 13:06:03 +00:00
adamdunkels
ace6567815
Added a timer that randomizes the retransmission of an incoming new trickle version to avoid broadcast collisions
2009-04-06 21:20:35 +00:00
adamdunkels
be1c8ccec9
Added debug printouts
2009-04-06 21:19:34 +00:00
adamdunkels
d02ac74bbc
Increased size of temporary stack value to avoid overflowing when computation is done with 8-bit integers
2009-04-06 21:19:00 +00:00
nifi
eab96e9b53
added rime-udp.c
2009-04-06 14:10:57 +00:00
nvt-se
d6869018c7
turned off debugging.
2009-04-06 13:27:37 +00:00
nvt-se
faf083f09d
save copy of a rime address that points to a packet buffer, since the
...
packet buffer is cleared and overwritten before the address usage is done.
2009-04-06 13:16:39 +00:00
nvt-se
c531f25c94
A module that enables Rime to run over UDP.
2009-04-06 13:13:26 +00:00
adamdunkels
73fdf05940
Added const to constant parameters (rime addresses)
2009-03-24 07:15:04 +00:00
