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2142 Commits

Author SHA1 Message Date
Benoît Thébaudeau
14db3382af csma: Initialize sequence number with random value 
According to IEEE 802.15.4 (§5.1.6.1, §6.4.2), the MAC sequence numbers should
be initialized to random values. This was already the case in
framer-802154.c:create(), but not in csma.c:send_packet(), sometimes causing
false detections of duplicate MAC-layer packets in other devices when a device
was restarted too quickly. This patch decreases the probability of such an
event.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
 2013-11-25 13:01:11 +01:00
Nicolas Tsiftes
acee82abbb Merge pull request #456 from adamdunkels/push/6lowpan-changes 
6lowpan changes
 2013-11-24 15:37:12 -08:00
Adam Dunkels
bb2dcaa057 A massive all-tree automated update of all double inclusion guard #defines that changes from using two underscores as a prefix, which are reserved, to not using two underscores as a prefix 2013-11-24 20:20:11 +01:00
Nicolas Tsiftes
7283e48f09 Merge pull request #454 from adamdunkels/push/dao-updates-rebased 
RPL feather mode
 2013-11-24 07:49:49 -08:00
Adam Dunkels
b0460317b8 Moved variable declaration to the start of the function block 2013-11-24 15:17:52 +01:00
Adam Dunkels
faff1c2a7e Preliminary support for RPL node types. This change allows a node to be in any of three given types: 
* Mesh: this is the normal case. Nodes route data on behalf of others and the node can be reached via a DAO route.
* Leaf: the node does not route data on behalf of others, but others can route data to the node (it has a RPL DAO route).
* Feather: this is a new type of node. A feather node routes data on behalf of others, but does not install DAO routes in the network. Feather nodes allow having a larger number of nodes than the RPL network can sustain in terms of routing tables.

This commit introduces the RPL node types and the feather mode, but does not add support for the leaf node type.
 2013-11-24 15:17:52 +01:00
Adam Dunkels
af24d07848 Forward no-path DAOs up the tree to allow the root to repair the network if needed 2013-11-24 15:17:52 +01:00
Adam Dunkels
9039b0ecd8 Remove references to the now unused dag->parents list 2013-11-24 15:17:52 +01:00
Adam Dunkels
4e6fe7dda6 Add a neighbor table entry if a DAO is received from a node where we don't yet have a neighbor table entry. 2013-11-24 15:17:52 +01:00
Adam Dunkels
490791eaa4 Add a check for the case when the parent neighbor may have gone away to avoid using a NULL pointer 2013-11-24 15:17:52 +01:00
Adam Dunkels
0ed7db0f9b Slight improvements in debug messages 2013-11-24 15:17:52 +01:00
Adam Dunkels
fc1adec1b8 Made it a bit more clear what function that gets called when a neighbor is removed 2013-11-24 15:17:51 +01:00
Adam Dunkels
61ea7fbb1c RPL DAO timers and management: 
* Added a DAO lifetime timer that sends out a new DAO after half the lifetime of the DAO. This allows implementing DAO route soft state that avoids routing tables in the network keeping stale routes for ever.
* Added ways to schedule a new DAO transmission as well as cancelling an active DAO transmit timer, which makes it possible to do nodes that don't send DAOs.
 2013-11-24 15:17:51 +01:00
Adam Dunkels
454088c117 Removed old, unused rawpacket code 2013-11-24 11:02:35 +01:00
Adam Dunkels
19b32c54c0 Removed the old unused hc.[ch] code 2013-11-24 11:02:35 +01:00
Adam Dunkels
9819c5b5b8 Rewrote the IPv6 route management so that all routes are maintained on a list that is ordered by the time at which the route was accessed. If a new route is added to the system, the oldest route is dropped. 2013-11-22 18:00:47 +01:00
Adam Dunkels
ea4bc3816f Produce an error if the UIP_TCP_MSS is too large for UIP_BUFSIZE 2013-11-22 15:46:48 +01:00
Adam Dunkels
61a8fa9977 Allow the default TTL to be configured with UIP_CONF_TTL 2013-11-22 15:44:48 +01:00
Adam Dunkels
d577d03e21 Bugfix: correctly handle the case if uip_sappdata is NULL. 2013-11-22 15:38:20 +01:00
Adam Dunkels
f31d6f271f Bugfix: if a SYN is received in the SYN_RCVD state we should not send a blank SYN, but a SYNACK in response. 2013-11-22 15:37:21 +01:00
Adam Dunkels
b31e84649a If the 6lowpan layer is currently reassembling a packet, and a non-fragmented packet comes along, this is a sign that one of the fragments were lost (as they normally would arrive back-to-back, in sequence). So we'll grab the non-fragmented packet instead of dropping it. 2013-11-22 15:12:02 +01:00
Adam Dunkels
3788b08780 Added a way to get the RSSI of the last received packet 2013-11-22 15:10:44 +01:00
Ari Suutari
c1c64dd1cc Received UDP packet was counted twice in statistics, first in udp_input and then again in udp_found. 
Fix this to use same logic as in uip.c: valid packet is counted only in udp_found.
 2013-11-22 08:16:05 +02:00
Oliver Schmidt
1fdeb4c788 Changed handling of predefined macros in cc65 allows for simplification. 2013-11-20 20:55:56 +01:00
Nicolas Tsiftes
0e24fb0bc0 Merge pull request #432 from adamdunkels/push/154-len 
Allow the 802.15.4/6lowpan code to operate on packets larger than 256 bytes
 2013-11-20 05:23:26 -08:00
Nicolas Tsiftes
263e212427 Merge pull request #431 from adamdunkels/push/ipv6-const 
Make IP addresses const
 2013-11-20 04:26:05 -08:00
Nicolas Tsiftes
d183b87f4b Merge pull request #434 from adamdunkels/push/cleanup-sys 
Remove old unused code from the core/sys/ directory
 2013-11-19 09:53:57 -08:00
Adam Dunkels
30c0c5eaf6 Removed old unused timetable code 2013-11-19 08:29:23 +01:00
Adam Dunkels
84fd0f9ae1 Removed out-commented timetable code 2013-11-19 08:21:53 +01:00
Adam Dunkels
5e9a76d38e Removed old unused tcpdump.c code 2013-11-19 00:24:18 +01:00
Adam Dunkels
563c9d1577 Removed old unused sys/ files 2013-11-19 00:23:13 +01:00
Adam Dunkels
f9cb6ec2fa Added the const keyword to IP address arguments that are not (and should not be) changed by the callee 2013-11-18 00:55:57 +01:00
Adam Dunkels
f26e35cffa Allow the 6lowpan code to handle packets larger than 256 bytes 2013-11-16 14:44:14 +01:00
Adam Dunkels
bec721d313 Allow payload len to be larger than 256 bytes 2013-11-16 14:22:48 +01:00
Laurent Deru
fd97136fee As RPL Root, drop an incoming DIO from the same instance but different DAG 2013-11-15 08:48:29 +01:00
Adam Dunkels
a6227e1e3e Merge pull request #350 from AriZuu/udp-stats-fix 
Fix UDP statistics.
 2013-11-14 23:39:16 -08:00
Ari Suutari
8ffd29616a Fix UDP statistics also in ipv6 code. 2013-11-15 08:00:41 +02:00
Nicolas Tsiftes
5688650f6d Merge pull request #391 from cetic/fix-duplicate 
Removed duplicate code in rpl-icmp6
 2013-11-14 12:35:24 -08:00
Simon Duquennoy
03dcca15cb Implement a truncated exponential backoff for csma 2013-11-14 15:02:36 +01:00
Moritz 'Morty' Strübe
c67c048cac Clean up setting channel and CCA-threshold for CC2420 based motes. 
The CCA-threshold now defaults to -46 which give better simulation
results and typically also better experimental results.
This adjustment is also needed due to commit 0a13f99 in mspsim. As
promised in https://github.com/mspsim/mspsim/pull/18 it broke the
regression tests.
 2013-11-07 17:28:33 +01:00
Sébastien Dawans
a60d3bf6cf Removed duplicate code in rpl-icmp6 2013-10-23 15:43:16 +02:00
Enrico Joerns
4ba22102fd [core/net/mac] Removed invalid struct member u8 in PRINTADDR 2013-10-15 01:43:26 +02:00
Simon Duquennoy
677b5ede16 Fixed printout that used deprectated rpl_parent_t structure 2013-10-08 14:46:55 +02:00
Adam Dunkels
4e1beb3ed3 Merge pull request #361 from nvt/rpl-mrhof-fix 
MRHOF fixes
 2013-10-07 11:45:31 -07:00
Nicolas Tsiftes
1698c439c5 Merge pull request #359 from g-oikonomou/trickle-timer-stop 
Add a method to stop running trickle timers
 2013-09-30 05:47:23 -07:00
George Oikonomou
060b00c4b5 Use TRICKLE_TIMER_IS_STOPPED in trickle_timer_stop() 2013-09-30 12:37:03 +01:00
Adam Dunkels
bf7edf6c4c Merge pull request #354 from lab11/core-net-fixes 
Small fixes to networking files
 2013-09-26 23:43:07 -07:00
Nicolas Tsiftes
43b5425493 Cleaned up various fragments and fixed a compilation error that occured when switching metric container. 
Fixed a wrapping problem in the ETX EWMA calculation.

Corrected the multiplier of the link metric, and simplified the configuration
so that the user does not need to specify the multiplier.
 2013-09-23 15:58:42 +02:00
George Oikonomou
995a9c92d9 Only schedule a trickle interval doubling for running timers 2013-09-16 11:53:39 +01:00
George Oikonomou
fa7219d0b8 Add a way to determine whether a trickle timer is running 2013-09-16 11:53:39 +01:00
Adam Dunkels
50395666fc Merge pull request #341 from ismb-pert/fix-lladdr 
Fixed fail to build from source due to a bad &nbr->lladdr
 2013-09-14 03:24:12 -07:00
Zhen-Huan Hwang
e75dacb5fa 1. Added a missing '&' in lib/trickle-timer.h 
2. Removed executable permissions of lib/trickle-timer.c & .h
 2013-09-11 18:31:06 +03:00
Zhen-Huan Hwang
b5815e8509 Fixed a typo in net/uipopt.h 2013-09-11 18:30:31 +03:00
Brad Campbell
bc762b6dd6 Small fixes to networking files 
1. Added #include header
2. Fixed #defines that weren't updated
3. Small change to comment that now points to correct RFC section
 2013-09-09 20:48:11 -04:00
Oliver Schmidt
c4bba3e89a Removed unnecessary code from resolver. 2013-09-09 21:35:51 +02:00
Gianfranco Costamagna
2afea590f7 Fixed fail to build from source due to a bad "&nbr->lladdr" reference 2013-09-06 22:11:19 +02:00
Ari Suutari
35c7314093 Fix UDP statistics. 2013-09-05 20:37:01 +03:00
Oliver Schmidt
e0ddea2a17 Removed unnecessary code from resolver. 2013-09-01 20:23:11 +02:00
Sébastien Dawans
78e807403c Inserts missing IPv6 Hop-By-Hop RPL Option at first hop 2013-08-19 21:40:24 +02:00
Adam Dunkels
86e247025a Removed debugging printout that came before a local variable declaration, which seems to have broken sdcc 2013-08-19 17:48:33 +02:00
Adam Dunkels
bfd7e5f25b Fixed a few bugs in the route handling code. While bughunting, rewrote parts of the code to make its intention clearer. Also added a bunch of comments to make the logic of the code more evident. 2013-08-19 17:48:32 +02:00
Adam Dunkels
8dc4e46968 Check if the nexthop neighbor for a given route has disappeared. If so, we drop the route too. If we happen to be the RPL root, we also initiate a global repair as the neighbor may moved. 2013-08-19 17:48:32 +02:00
Adam Dunkels
d0a939afb0 Bugfix: must multiply with ETX divisor to turn into fixed-point format. 2013-08-19 17:48:32 +02:00
Adam Dunkels
4d0ecaae02 Make sure our parent's IP address isn't NULL. 2013-08-19 17:48:32 +02:00
Adam Dunkels
e5a6565137 Loop detection via DAO: if we get a DAO from a parent, that parent thinks we are its parent. We poison it and recalulate our parents. 2013-08-19 17:48:32 +02:00
Adam Dunkels
34119b7ef2 Poor man's loop reparation: reset the DIO timer and hope the neighbor learns a better route. 2013-08-19 17:48:32 +02:00
Adam Dunkels
d830e9df3f Implement forwarding error handling: if a packet changes direction, we set the FWD_ERR flag. If we see the FWD_ERR flag, we drop the route that we sent it to. If we are the root node, we also initiate a global repair. 2013-08-19 17:48:31 +02:00
Adam Dunkels
abb3ef9b3b Bugfix: don't set the parent if the dag is NULL 2013-08-19 17:48:31 +02:00
Adam Dunkels
08761dfd8a Added a function uip_ds6_nbr_num() for getting the number of neighbors 2013-08-19 17:48:31 +02:00
Adam Dunkels
a027832f94 Fixed a bunch of compiler warnings 2013-08-19 17:48:31 +02:00
Adam Dunkels
9a74ada90c Added a function rpl_get_parent_link_metric() for obtaining the link metric of a given parent 2013-08-19 17:48:31 +02:00
Adam Dunkels
c52fc2fd19 Defensive programming: check for the argument being NULL. 2013-08-19 17:48:31 +02:00
Adam Dunkels
b42ccaed1b Added function prototypes to a number of functions with void arguments 2013-08-19 17:48:31 +02:00
Adam Dunkels
82e8eb420d Added and updated debugging printouts and reformatted code to make it a little easier to read. 2013-08-19 17:48:31 +02:00
Simon Duquennoy
248301a041 Fix naming issues and includes in uip-ds6-nbr.h 2013-08-19 17:48:30 +02:00
Simon Duquennoy
ff093a2b50 Removed now unused per-module neighbor table size configs. Use NEIGHBOR_CONF_MAX_NEIGHBORS instead. 2013-08-19 17:48:30 +02:00
Simon Duquennoy
c3f62b24c8 Moved ETX management from neighbor-info to rpl-of-etx. Avoids conversions between different fixed point representations, and simplifies neighbor management. Makes more clear how default-ETX and noack-ETX actually affect the rank. Removed neighbor-info and neighbor-attr. 2013-08-19 17:48:30 +02:00
Simon Duquennoy
c50d10aa53 Make RPL use neighbor tables. RPL locks the neighbor used as preferred parent. 2013-08-19 17:48:30 +02:00
Simon Duquennoy
09d26f8060 Make uip-ds6-route use neighbor table. Instead of storing a global list of routing entries that contain both the next hop and the destination, we have a separate list of reachable destination for each neighbor in the global table. 2013-08-19 17:48:30 +02:00
Simon Duquennoy
ec609b49eb Make DS6 neighbors use neighbor-table, and move all DS6 neighbor management from uip-ds6 to a new uip-ds6-neighbor module. 2013-08-19 17:48:30 +02:00
Simon Duquennoy
5a1d8d8006 Make phase module use neighbor-table. 2013-08-19 17:48:29 +02:00
Simon Duquennoy
cfb3bbdad9 Added new neighbor-table module, a centralized place where to store all data about neighbors, indexed by link-layer address. Meant for use in other Contiki modules such as rpl, ds6, ds6-route, phase, neighbor-info. 2013-08-19 17:48:29 +02:00
Fredrik Osterlind
8041f66d8c link-layer acks support for cooja motes 2013-08-15 14:32:35 +02:00
Adam Dunkels
f5307fc01e Bugfix: must set the SICSLOWPAM_MAX_MAC_TRANSMISSIONS attribute after clearing the buffer, otherwise it will not be used for outoing packets. 2013-08-11 14:27:21 +02:00
Adam Dunkels
0aa448f190 6lowpan fragmentation bugfix: the 6lowpan code had an unfortunate 
interaction with the behavior of the rdc layer. If the first packet of a
fragment transmission was lost, the remaining packets would get dropped
on reception. Moreover, the reception code contained a bug that
sometimes would cause fragments to be misidentified as fragments. Taken
together, these problems would result in a pathelogical network
breakdown if too many fragmented packets would occur simultaneously.
 2013-08-11 14:27:20 +02:00
Adam Dunkels
02c0b8a4e4 Parse rodata too 2013-08-06 21:33:03 +02:00
Oliver Schmidt
ff5d6e091d Recent changes in telnetd make exporting of those two necessary. 2013-07-31 00:04:43 +02:00
Adam Dunkels
54f2109134 Merge pull request #290 from simonduq/rpl-mrhof-etx-nomc 
Update of RPL MRHOF (use no metric container with ETX [RFC6719])
 2013-07-29 00:56:25 -07:00
Adam Dunkels
945f217a11 Merge pull request #220 from lebrush/uip-ds6-least-lifetime 
Add method to get the first neighbour which is about to expire
 2013-07-28 16:43:41 -07:00
Nicolas Tsiftes
d228cb57a5 Merge pull request #301 from adamdunkels/hotfix-rpl-max-dio 
RPL bugfix: don't ignore infinite rank DIOs
 2013-07-26 06:48:26 -07:00
Adam Dunkels
500d9cc3e4 Merge pull request #300 from cetic/rpl-nopath-dao 
RPL No-Path DAOs
 2013-07-26 03:53:56 -07:00
Adam Dunkels
9ba5d9694c Merge pull request #299 from jdede/rpl-rm-neighbor 
Default route not removed
 2013-07-26 03:52:55 -07:00
Adam Dunkels
4913792d41 Minor code style fix 2013-07-26 12:38:43 +02:00
Adam Dunkels
512a339c50 Bugfix: DIOs with infinite ranks should not be ignored as they are used by RPL as a signal by nodes that have lost their routes. Instead of ignoring them, we should send out our latest information to let the node with infinite rank find their way into the network again. 2013-07-26 12:38:25 +02:00
Sébastien Dawans
a05d635512 Improve readability of DAO output variables 2013-07-25 11:22:38 +02:00
Sébastien Dawans
0bd26d83c8 Ignore No-Path DAO if target is already reachable through a different route than the DAO sender 2013-07-25 11:21:04 +02:00
Sébastien Dawans
c4a121bf18 No-Path DAO Propagation 2013-07-25 11:19:56 +02:00
Jens Dede
2f1bf730af Adapted comment 2013-07-23 20:01:10 +02:00
Simon Duquennoy
defcc639ce Use no metric container when having MRHOF with ETX, as specified in RFC6719. Renamed rpl-of-etx to rpl-mrhof. 2013-07-23 19:36:38 +02:00
Nicolas Tsiftes
f8edf41411 Merge pull request #291 from simonduq/na-config 
Added a flag to optionally disable IPv6 NA/NS at compile time
 2013-07-23 09:52:13 -07:00