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702 Commits

Author SHA1 Message Date
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
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
cc44e89415 Reduced default strobe time, which seems to work well. Avoid running the interrupt if the power-save feature is turned off (fixes problems with serial data reception on a gateway mote) 2009-04-29 11:42:13 +00:00
adamdunkels
c02a82ac41 Tag outgoing TCP packets with the ERELIABLE attribute so that an underlying power-saving MAC protocol can treat them differently, because it knows that an ACK might be arriving soon 2009-04-29 11:40:33 +00:00
adamdunkels
c9df0ab123 Bugfix in debug message printout 2009-04-28 14:01:46 +00:00
adamdunkels
81ef83b856 Added option to wait randomly before sending a packet. A few code cleanups. Avoid switching radio off when sending a packet with end-to-end acks, because an ACK may arrive shortly after the transmission. 2009-04-28 14:00:53 +00:00
adamdunkels
fdd05f5c71 Bugfix: psock send should use PT_WAIT_UNTIL() not PT_YIELD_UNTIL(). This improves TCP throughput by 100x under minimal-net 2009-04-28 13:52:04 +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
nvt-se
9765df97e5 support udp_broadcast_new also when using IPv6. Suggested by Wolf-Bastian Pttner. 2009-04-13 19:54:07 +00:00
adamdunkels
ef4f5cc0e5 Made TCP MSS configurable 2009-04-10 00:37:48 +00:00
nifi
84b38de494 removed bitfields for compatibility with cc65 2009-04-09 21:54:09 +00:00
adamdunkels
f5f52ffd1f Fixes by Ward Van Heddeghem (VUB) 2009-04-07 13:06:03 +00:00
nvt-se
03cd533712 made LISTEN_TIME and OFF_TIME configurable. 2009-04-07 11:29:08 +00:00
adamdunkels
5e456aea7d Added optimization for sending ACKs immediately. Turned optimizations on. Increased listening time to 1/64 s again due to problems with broadcasts with the 1/128 s setting 2009-04-06 22:50:35 +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
000f740adc typo 2009-04-06 15:54:07 +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
nifi
9f2ff48fda added 802.15.4 frame packeter 2009-04-06 13:19:03 +00:00
nvt-se
3b2ad9cfc4 added packet forwarding and replaceable routing modules. 2009-04-06 13:18:50 +00:00
nvt-se
461ba4082c in case UIP_CONF_ROUTING is set, check if we have a registered routing 
module and use it for looking up the next hop of an address.
 2009-04-06 13:18:12 +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
nvt-se
005578a722 added multihop routing support through replaceable modules. first implementation 
uses rime's route discovery by translating between ipv6 and rime addresses.
 2009-04-06 13:11:25 +00:00
nifi
4bc60d76d3 fixed alignment problem on MSP430 when using compression 2009-04-06 13:11:20 +00:00
adamdunkels
ed1e945e66 Added guard code so that OFF_TIME is never zero 2009-04-03 20:08:05 +00:00
adamdunkels
8dbd2b2337 Significant power consumption optimization: LPP now keeps track of encounters with neighbors and uses this information to keep the radio switched off longer. 2009-04-03 19:59:22 +00:00
adamdunkels
1d86b01bfb Made optimizations explicit (and configurable). Added missing initialization of dutycycle protothread. Reduced default listen time and off time. 2009-04-03 11:45:06 +00:00
adamdunkels
04101aae36 Fixed alignment problem on the MSP430, where the LPP header may be misaligned 2009-03-31 17:39:54 +00:00
nvt-se
e2cc8b2a3e send all queued packet once we have the chance. 2009-03-31 14:44:13 +00:00
nvt-se
1d47e2a8da send immediate probes only if the packet is directed to us. 
sleep for OFF_TIME if the queue is empty.

restrict double packet lifetime timeouts to unicast packets.

stop ctimer in remove_queued_packet in case the function is not called
via the ctimer callback. it could overwrite a valid packet otherwise.
 2009-03-31 14:11:25 +00:00
nvt-se
dd082f7fcf improvements to lpp based on code from Adam and discussions with Thiemo. 
* queue multiple packets
* send a strobe back immediately after receiving a data packet
* double the packet lifetime to allow for a missed probe
 2009-03-31 12:47:00 +00:00
nvt-se
d8caaca289 listen time and off time parameters configurable from outside because cc1020 needs longer listen time. 2009-03-26 12:50:57 +00:00
adamdunkels
73fdf05940 Added const to constant parameters (rime addresses) 2009-03-24 07:15:04 +00:00
adamdunkels
a625d80259 Added explicit typecast to buffer definition 2009-03-24 07:14:12 +00:00
adamdunkels
ec1677ca6c Added a function (quick hack) that sets the radio transmission power of outgoing announcement packets in xmac 2009-03-23 21:06:26 +00:00
adamdunkels
1cbc0f4ea9 Send announcement packets only if there are any announcements to send 2009-03-23 21:00:25 +00:00
adamdunkels
f4b8680174 Defined the packetbuf buffer so that it is always aligned on a 16-bit boundary. 2009-03-23 19:37:45 +00:00
adamdunkels
39af9b361d Fixed minor bug in comment 2009-03-23 16:39:09 +00:00
adamdunkels
21e0900d18 Made constant addresses const 2009-03-23 16:22:02 +00:00
adamdunkels
143bf11548 The multihop module used the pre-chameleon style packet headers. Converted it to use packet attributes instead of packet headers 2009-03-23 16:20:37 +00:00
adamdunkels
c791d851bb Send an announcement packet only if there are more than zero announcemnets 2009-03-23 16:19:03 +00:00
nifi
91fa18e0e6 removed unused prototype 2009-03-23 10:58:00 +00:00
nvt-se
cc85a36722 use u8 when writing rime addresses. 2009-03-21 20:53:06 +00:00
nvt-se
4b6c110706 fixed documentation typos. 2009-03-17 20:28:44 +00:00
nifi
f0e56df2eb fixed compiler warning when timesynch is disabled 2009-03-17 09:57:01 +00:00
nvt-se
13b364bcc1 fixed documentation typos. 2009-03-15 20:29:04 +00:00
nvt-se
41ca9516a7 fixed documentation typos. 2009-03-15 20:21:16 +00:00
adamdunkels
fb8fab739a Renamed the rimebuf module to packetbuf to signal that the module is used outside of a pure Rime context (e.g., the sicslowpan code uses it). 2009-03-12 23:04:52 +00:00
adamdunkels
65eb5fd4e8 Renamed the rimebuf module to packetbuf to signal that the module is used outside of a pure Rime context (e.g., the sicslowpan code uses it). 2009-03-12 21:58:20 +00:00
adamdunkels
537219bf27 Added a packet attribute to specify transmission power on outgoing packets 2009-03-11 20:33:17 +00:00
zhitao
f304941ab4 raise busy forwarding flag before sending 2009-03-10 14:07:41 +00:00
julienabeille
2a173b465a more printing in debug mode 2009-03-10 08:00:59 +00:00
zhitao
1eb085834f Update announcement value after route metric saturates. Not doing this results in stubborn forwards from former children nodes. 2009-03-09 12:54:27 +00:00
adamdunkels
a1260c0c1f Documentation updates 2009-03-08 21:43:24 +00:00
adamdunkels
366ad7bece Added Rime documentation from the Rime/Chameleon paper (SenSys 2007) 2009-03-07 11:15:46 +00:00
zhitao
0a12098bd5 avoid ping pong packets during route disruption 2009-03-06 17:33:59 +00:00
adamdunkels
dc7491f810 Bugfix and optimization: X-MAC did not properly switch the radio off after sending a packet, resulting in increased power consumption. For packets that require an ACK, we can let the radio be on in anticipation of the ACK (controlled with an WITH_ACK_OPTIMIZATION option) 2009-03-05 19:37:52 +00:00
zhitao
64badeb282 bugfix: use memcpy() to get attributes longer than a byte properly written to packet header 2009-03-05 13:51:28 +00:00
zhitao
08b2315f41 bugfix: put up busy forwarding flag only after next hop found 2009-03-04 08:59:32 +00:00
fros4943
f701615afa bugfix: remember active transmissions (sender side) instead of last received packets (receiving side). allows several nodes sending to a single receiver. 
+ added function for checking if runicast is currently transmitting (non-acked) data
 2009-03-03 12:19:46 +00:00
adamdunkels
9816f49fe6 Changed listen and transmit energy attributes so that they are named _TIME rather than _ENERGY, to indicate that they contain the time during which the radio was switched on and not the energy 2009-03-02 22:00:41 +00:00
adamdunkels
78591a003f Minor documentation update 2009-03-02 21:56:16 +00:00
adamdunkels
45e32894a0 Bugfix: backwards definition of MIN macro (quite embarassing) 2009-03-02 11:22:09 +00:00
adamdunkels
d813d343c5 Cleaned up old left-over code 2009-03-01 20:38:57 +00:00
adamdunkels
7010eb84b8 Added support for communication power accounting. Energy is attributed to idle listening when the radio is switched off. Enegrgy is attributed to an incoming packet when it is received. Energy is attributed to an outgoing packet when it is transmitted. 2009-03-01 20:37:16 +00:00