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Author SHA1 Message Date
Adam Dunkels 9e8733e57a Correct the operator in the comment so that it matches the actual #if 2013-12-18 08:35:06 +01:00
Adam Dunkels 9114cd3215 Added an API for getting a callback when a ping reply is received. 2013-12-13 08:36:51 +01:00
Adam Dunkels a6a081e67d Fixed a severe error in the bugfix: the conditional was reversed. The check must be if the TCP MSS is larger than the BUFSIZE and not the other way around. 2013-12-12 22:43:28 +01:00
Adam Dunkels ef83850e63 Removed redundant #ifdef 2013-12-12 22:20:20 +01:00
Adam Dunkels c0b3c87ba7 Make 0 the default link-layer header length, as far as uIP is concerned. Most currently used linke layers (specifically, 802.15.4) has adaptation layers that use separate buffers, so there is no need to reserve space in the uIP buffer. 2013-12-12 22:20:09 +01:00
Adam Dunkels c7e0fa7152 Moved #defines so that UIP_TCPIP_HLEN and UIP_LLH_LEN are defined before they are used 2013-12-12 20:57:35 +01:00
Nicolas Tsiftes a8a9b66eff Merge pull request #457 from adamdunkels/push/uip6-bugfixes 
IPv6 bugfixes
 2013-12-12 05:02:39 -08:00
Nicolas Tsiftes 75cbf4f48a Merge pull request #479 from adamdunkels/push/cleanup-xmac-and-lpp 
Remove xmac.c and lpp.c
 2013-12-04 04:57:27 -08:00
Nicolas Tsiftes 7b1e3d1c94 Merge pull request #460 from adamdunkels/push/routelist 
IPv6 routes LRU
 2013-11-29 05:23:05 -08:00
Adam Dunkels 0908924f91 Removed the lpp.c code 2013-11-28 15:24:40 +01:00
Adam Dunkels f86aaf7c14 Removed the xmac.c code 2013-11-28 15:24:22 +01:00
Nicolas Tsiftes db4cada4e7 Merge pull request #462 from adamdunkels/push/no-reserved-double-inclusion-defines 
Remove all leading double underscore inclusion #defines
 2013-11-26 14:26:37 -08:00
Benoît Thébaudeau 4deba89f81 rdc: duplicate packets: Keep only the last sequence number for each address 
According to IEEE 802.15.4e (§6.4.3.9), in order to detect duplicate received
MAC-layer frames, only the most recently received frame's sequence number needs
to be stored for each unique device address. Doing so limits the possible false
duplicate packet detections to a single sequence number. This also allows to
keep the last sequence number of more device addresses for the same value of
MAX_SEQNOS.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
 2013-11-25 13:01:11 +01:00
Benoît Thébaudeau 477a4a7178 rdc: duplicate packets: Factor out detection code 
The code detecting duplicate packets in the RDC layer had been copied into most
RDC implementations. Factor it out into a new mac-sequence module in order to
have a single instance of this code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
 2013-11-25 13:01:11 +01:00
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
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 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 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
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
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
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 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 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
Jens Dede 9dd5af78c8 fix: default routes are removed correctly if no DAG with preferred parent is available 2013-07-23 15:35:47 +02:00
Simon Duquennoy 0e81b91fa6 Simplify periodic ds6 neighbor processing in case NA/NS is disabled. Strips out uip_nd6_ns_output from the binary. 2013-07-02 15:20:21 +02:00
Simon Duquennoy 1f38348cf9 Added a flag to optionally disable IPv6 NA/NS at compile time 2013-07-02 14:43:53 +02:00
Jelmer Tiete cf894b8b95 changed inter packet interval to 0.4ms 2013-06-21 13:15:45 +02:00
Nicolas Tsiftes 7cc8f326f4 Merge pull request #257 from adamdunkels/hotfix-csma 
CSMA bugfix
 2013-06-20 01:49:48 -07:00
Adam Dunkels 09f30e875d Bugfix: when a CSMA callback is received, we should remove the packet 
that was transmitted and not just the first packet that happens to be on
the output queue.
 2013-05-25 12:13:07 +02:00
Adam Dunkels ee64780cb6 Allow proactive probing interval to be configured 2013-05-25 12:10:27 +02:00
Adam Dunkels c9de0e49be Added a number of default options for ContikiMAC, and allow them to be overridden with contiki-conf.h configuration options 2013-05-25 12:10:27 +02:00
Adam Dunkels 0a135eeba1 Merge pull request #214 from lebrush/tcp-uip-size 
Limit partially size of uip/tcpip stack when not using TCP at all
 2013-05-23 09:48:17 -07:00
Adam Dunkels 0f135afb34 Merge pull request #218 from lebrush/rpl-mixed-network-bug 
Fixes bug a node not using RPL joins a network which does
 2013-05-22 00:26:06 -07:00
Nicolas Tsiftes ffd18aad82 Merge pull request #221 from lebrush/uip-ds6-notifications 
Make DS6 route notifications optional
 2013-05-21 07:10:31 -07:00
lebrush 6eafa08313 Make DS6 route notifications optional. 2013-05-21 10:05:02 +02:00
lebrush 96a1a97736 Limit size of uip/tcpip stack when not using TCP at all. 2013-05-21 10:02:17 +02:00
lebrush 5bae5e6ffd Fixes imposibility of receiving data when a node not using RPL joins a network 
which does.

The RPL header is processed, declared invalid and the packet discarded. This
is fixed by this commit.
 2013-05-21 10:00:46 +02:00
lebrush c2a7a25a9e Code style fixes 2013-05-21 09:50:30 +02:00
lebrush 26177387fc Use memcpy, memcmp functions for the rime compare and copy functions as they 
are already used all over contiki.
 2013-05-21 09:50:29 +02:00
lebrush 2fb007b1e0 Code style fixes 2013-05-21 09:05:30 +02:00
Nicolas Tsiftes 83c08bdf99 Merge pull request #219 from lebrush/sicslowpan-uip-debug 
Force sicslowpan to use uip-debug rather than an own system
 2013-05-20 04:59:20 -07:00
Robert Quattlebaum 382308e6bf Merge pull request #242 from darconeous/pull-request/resolv-bad-nsec-fix 
resolv: Fix for bad NSEC record on announce
 2013-05-19 16:34:03 -07:00
Robert Quattlebaum d0b99cc3cc resolv: Fix for bad NSEC record on announce 2013-05-19 16:09:50 -07:00
Sébastien Dawans 1be01a9c90 Support prefix udpates with PIO Handling 2013-05-19 10:51:57 -04:00
Mariano Alvira 5df586e09d Merge pull request #184 from g-oikonomou/bug-fixes/rimestats 
Rimestats Fix (#183)
 2013-05-19 07:45:22 -07:00
Robert Quattlebaum 0bed4b17a2 resolv: Fix for word alignment issues in mdns_prep_host_announce_packet(). 2013-05-18 10:43:09 -07:00
lebrush eef6d7a37e Removed undef 2013-05-15 16:49:36 +02:00
lebrush 82d498f3a1 Removed undef 2013-05-15 16:25:34 +02:00
lebrush 9158ff4bf1 Add method to get the first neighbour which is about to expire 2013-05-15 13:44:25 +02:00
lebrush 966e9fc484 Force sicslowpan to use uip-debug rather than an own system 2013-05-15 12:23:21 +02:00
lebrush 071cfaf1cb Corrects some leftover uncapitalized printfs which may cause some platforms 
to crash.
 2013-05-15 12:21:15 +02:00
Nicolas Tsiftes f8edbbb8d2 Merge pull request #178 from adamdunkels/feature-contiki-default-conf 
A first stab at a default configuration system
 2013-03-25 20:13:15 -07:00
George Oikonomou 62366813b0 Provide a macro to read rimestats when enabled 2013-03-20 21:14:34 +00:00
George Oikonomou 12860ce5d4 Fix #183 (short term fix) 
This is a temporary fix for #183, so that things can
build cleanly until the issue is fixed properly.

If RIMESTATS_CONF_ENABLED is 0, rimestats.foo will always
read as 0, since RIMESTATS_ADD(foo) doesn't do anything
 2013-03-20 19:59:20 +00:00
Nicolas Tsiftes 199a89bac4 Merge pull request #173 from adamdunkels/feature-ipv6-not-in-makefile 
Allow IPv6 to be compiled via #define
 2013-03-19 08:17:52 -07:00
Nicolas Tsiftes 7f2a842b71 Merge pull request #174 from adamdunkels/feature-net-improvements 
Improvements to the core/net/ code
 2013-03-18 17:12:12 -07:00
Nicolas Tsiftes 6a07172662 Merge pull request #176 from adamdunkels/feature-net-bugfixes 
Network system bugfixes
 2013-03-18 13:38:44 -07:00
Adam Dunkels 7742b05d8c Major bugfix: when nullrdc is asked to send a list of packets, send the list of packets and not just the first packet - this is essential for retransmissions of fragmented IP packets to work 2013-03-18 13:35:29 +01:00
Adam Dunkels f81e4071f1 Merge pull request #135 from darconeous/pull-requests/core-net-bridge-mode 
core/net: Added support for "bridge mode".
 2013-03-18 04:43:15 -07:00
Adam Dunkels ad28f1b396 Merge pull request #75 from cmorty/mesh_ready 
Add mesh_ready() to mesh
 2013-03-18 04:42:43 -07:00
Adam Dunkels 2ba293a538 Bugfix: check the size of the outgoing packet to avoid overflowing the output buffer 2013-03-18 11:22:08 +01:00
Adam Dunkels 843d2361dc Include the rimestats variable only if rimestats are enabled by the configuration 2013-03-18 11:22:06 +01:00
Adam Dunkels 4efd570cf9 Minor bugfix: explicitly cast pointer argument in debug printf 2013-03-18 11:22:05 +01:00
Adam Dunkels f2fbb4b49d Defensive programming: make sure that we don't fail completely if we get a callback for a NULL pointer 2013-03-18 11:22:04 +01:00
Adam Dunkels 82b755c017 Bugfix: keep track of receiver being awake as a local variable rather than a global, as it may have changed between invokations 2013-03-18 11:22:02 +01:00
Adam Dunkels 0670a8e1e2 Minor code style fixes to the contikimac and nullrdc code 2013-03-18 11:22:01 +01:00
Adam Dunkels 3efa84ecc8 New mechanism for computing the 6lowpan header length dynamically, depending on how large header the framer creates. Also check the incoming packet for buffer overflow. 2013-03-18 11:19:22 +01:00
Adam Dunkels cb2336a322 Send announcements only if the node is configured to be a router 2013-03-18 11:19:21 +01:00
Adam Dunkels 5993595a8f A number of updates to nullrdc 
* add a few rimestats to keep track of sent and received acks
* made a number of configuration options possible to override (ack timing)
* added the logic for sending 802.15.4 link layer ack packets, despite not being able to guarentee the 802.15.4 MAC timing
* increased the number of sequence numbers to keep track of for duplicate filtering
 2013-03-18 11:19:20 +01:00
Adam Dunkels 4541d3e85b Let the framer functions use ints instead of uint8_t to make them more generic 2013-03-18 11:19:18 +01:00
Adam Dunkels 2d50a40643 A default configuraion file for Contiki 
The contiki-default-conf.h file is intended as a safe fallback for
a number of configuration options in Contiki, to avoid putting too
much in the individual contiki-conf.h files.
 2013-03-18 11:12:43 +01:00
Adam Dunkels 927cc8d895 Added #if UIP_CONF_IPV6 around the IPv6 code in the uIP source tree to allow the C files to be compiled even if IPv6 is not configured. 2013-03-18 09:45:30 +01:00
Adam Dunkels db1e8cdbac Separated the uIP makefile from the top-level Makefile.include into a separate core/net/Makefile.uip makefile 2013-03-18 09:45:29 +01:00
Robert Quattlebaum da81360731 core/net/resolv: Misc. updates and cleanups. 2013-03-14 19:14:32 -07:00
Robert Quattlebaum 7e9f472faa core/net/resolv: Fix for resolving CNAME records. 2013-03-14 19:13:51 -07:00
Robert Quattlebaum 639a9ca399 core/net/resolv: Fix for SDCC. 2013-03-14 19:13:04 -07:00
Oliver Schmidt 46cb6013ae Reduced code size. 
Combined recent changes from darconeous...
- Refactor to decrease minimum code footprint.
- Added `RESOLV_CONF_SUPPORTS_RECORD_EXPIRATION`.
...with a few additional changes to reduce code size.
 2013-03-14 22:53:52 +01:00
Oliver Schmidt d8862bd243 Some more changes improving code style conformance and code size. 2013-03-13 17:52:57 +01:00
Oliver Schmidt 7a1fa4de6c Some coding style nomalization. 2013-03-13 16:14:29 +01:00
Oliver Schmidt 8fa9767d47 Restored Contiki compatibility with non-C99 compilers. 
(and compilers without non-standard extensions like void pointer arithmetic)
 2013-03-13 14:40:24 +01:00
Moritz 'Morty' Strübe b1dbc2047e Add mesh_ready() to mesh 
mesh_ready checkes whether a packet is queued. This allows to avoid
packet loss at application level.
 2013-03-13 09:44:38 +01:00
Robert Quattlebaum c0a693672c core/net: Added support for "bridge mode". 
"Bridge mode" allows devices to more easily send 802.15.4 packets as if
they were a different device. It also turns off any packet filtering
that may be implemented at layer 2. It works by allowing
`PACKETBUF_ADDR_SENDER` to be set earlier in the stack.

This is useful for implementing 6LoWPAN-ethernet bridges.

Enabled via setting `NETSTACK_CONF_BRIDGE_MODE` to 1. Disabled by
default.
 2013-03-10 14:45:15 -07:00
Adam Dunkels 4e40cb8a8d Merge pull request #116 from cetic/rpl-lifetimes 
RPL Lifetimes
 2013-03-10 13:04:07 -07:00
Adam Dunkels 39e5a8c6dc Merge pull request #80 from darconeous/mdns-resolv 
Adds IPv6 and MDNS domain name resolution.
 2013-03-10 12:58:39 -07:00
Adam Dunkels 0841bce833 Merge pull request #82 from darconeous/master 
Makefiles: Allow setting UIP_CONF_IPV6=0 to work as expected.
 2013-03-10 12:51:03 -07:00
Robert Quattlebaum f145c17039 core/net/resolv: IPv6 and mDNS ("Bonjour") support. Major refactor. 
This patch updates the DNS resolver to support IPv6 and introduces an
improved API for looking up DNS entries. This patch also adds optional
support for mDNS lookups and responses to the DNS resolver.

Here is a quick summary of the changes:

 * Added support for IPv6 lookups.
 * DNS queries now honor record expiration.
 * Added support for mDNS, compatible with "Bonjour".
 * Implemented a new lookup api, `resolv_lookup2()`, which provides
   more information about the state of the record(error, expired,
   looking-up, etc.).

About mDNS/Bonjour Support
--------------------------

This patch adds basic support for mDNS/Bonjour, which allows you to
refer to the name of a device instead of its IP address. This is
incredibly convenient for IPv6 addresses because they tend to be very
long and difficult to remember. It is especially important for
link-local IPv6 addresses, since not all programs support the '%'
notation for indicating a network interface (required on systems with
more than one network interface to disambiguate).

In other words, instead of typing in this:

 * `http://[fe80::58dc:d7ed:a644:628f%en1]/`

You can type this instead:

 * `http://contiki.local/`

Huge improvement, no?

The convenience extends beyond that: this mechanism can be used for
nodes to talk to each other based on their human-readable names instead
of their IPv6 addresses. So instead of a switch on
`aaaa::58dc:d7ed:a644:628f` triggering an actuator on
`aaaa::ed26:19c1:4bd2:f95b`, `light-switch.local` can trigger the
actuator on `living-room-lights.local`.

What you need to do to be able to look up `.local` names on your
workstation depends on a few factors:

 * Your machine needs to be able to send and receive multicast packets
   to and from the LoWPAN. You can do this easily with the Jackdaw
   firmware on an RZUSBStick. If you have a border router, you will need
   it to bridge the mDNS multicast packets across the border.

 * If you are using a Mac, you win. All Apple devices support mDNS
   lookups.

 * If you are using Windows, you can install Apple's Bonjour for Windows
   package. (This may be already installed on your machine if you have
   installed iTunes) After you install this you can easily do `.local`
   lookups.

 * If you are using a Unix machine, you can install Avahi.

The default hostname is set to `contiki.local.`. You can change the
hostname programmatically by calling `resolv_set_hostname()`. You can
change the default hostname by changing `CONTIKI_CONF_DEFAULT_HOSTNAME`.

You may disable mDNS support by setting `RESOLV_CONF_SUPPORTS_MDNS` to
`0`.

---------------------------------

core/net/resolv: `resolv_lookup2()` -> `resolv_lookup()`

Note that this patch should fix several `resolv_lookup()` bugs
that already existed. There were many cases where `resolv_lookup()`
was being called and the IP address ignored, but later code
assumed that the IP address had been fetched... ANYWAY, those
should be fixed now.

---------------------------------

examples/udp-ipv6: Updated client to use MDNS to lookup the server.

Also updated the Cooja regression test simulation.
 2013-03-10 11:40:08 -07:00
Robert Quattlebaum 97e16760c3 core/net/uip-ds6: Make uip_ds6_maddr_add() and uip_ds6_maddr_lookup() const-correct. 2013-03-10 11:39:12 -07:00
Robert Quattlebaum 1d113f52ad core/net/uip: Rename uip_ethaddr to uip_lladdr. 
There isn't really a good reason I can think of for these
to be different between IPv4 and IPv6.
 2013-03-10 11:39:11 -07:00
Sébastien Dawans e02d480ff5 Moved RPL Lifetime configuration to rpl-conf.h 2013-03-09 16:28:43 +01:00
Sébastien Dawans b6c54faf9d Adds default route lifetime update in RPL DIO processing 2013-03-09 16:27:37 +01:00
Sébastien Dawans aaf5deabe2 Allow user configuration of RPL Lifetime and Lifetime Unit 2013-03-09 16:27:37 +01:00
Adam Dunkels 373b6c0195 Merge pull request #90 from simonduq/rpl-conf 
Added missing include of contiki-conf.h in rpl-conf.h
 2013-03-09 05:55:56 -08:00
Adam Dunkels ea92365cd4 Merge pull request #102 from cetic/rpl-conf-init-link-metric 
Makes RPL Initial Link Metric configurable
 2013-03-09 05:52:07 -08:00
Adam Dunkels 80982f97b8 Merge pull request #125 from nfi/lollipop 
Bug fix: corrected the macro RPL_LOLLIPOP_INCREMENT
 2013-03-09 05:49:06 -08:00
Adam Dunkels e91a2ac78a Merge pull request #142 from malvira/rpl-leaf-debug 
Add some debug PRINTFs for RPL_LEAF_ONLY mode.
 2013-03-09 05:35:48 -08:00
Oliver Schmidt 4d4b796abb Removed useless register keywords. 
Modern compilers (especially GCC) ignore the register keyword anyway and the latest cc65 snapshot generates actually larger code with the register keyword at the locations in question.
 2013-03-06 14:32:36 +01:00
Mariano Alvira 03fdb53af1 Add some debug PRINTFs for RPL_LEAF_ONLY mode. 2013-02-20 18:25:32 -05:00
Niclas Finne 26fc2fab87 Bug fix: changed the macro RPL_LOLLIPOP_INCREMENT to update the counter instead of returning the new value since this is how the macro is used today. 2013-02-12 16:06:04 +01:00
Oliver Schmidt 1eda821a75 Fixed severe bug in PSOCK_READTO (?) 
Either I found and fixed a severe bug in PSOCK_READTO() or I misunderstood something completely. To me PSOCK_READTO() is supposed to return if either the supplied character was read or if the user supplied buffer is exhausted - sor far so good.

However if the latter occurs up to now PSOCK_READTO() was continuing to process characters already read from the network (aka present in the uIP buffer) in order to check if the supplied character was found there and adjust the return value accordingly. But this means that the character processed this way were lost forever for the caller as the next call to PSOCK_READTO() would continue to read past the characters processed this way.

Therefore I removed that character processing altogether. So now if the user supplied buffer is exhausted before the supplied character is found the next call to PSOCK_READTO() starts exactly where previous call left off.
 2013-02-10 15:41:34 +01:00
Oliver Schmidt 29391ef9ae Removed uiplib_ip6addrconv() from IPv4 builds. 
While it may very well be beneficial to have explict uiplib_ip4addrconv() and uiplib_ip6addrconv() available for IPv6 builds I'm having a hard time to see the point in uiplib_ip6addrconv() for IPv4 builds.

Unrelated to the above the dispatching of uiplib_ipaddrconv() to either uiplib_ip4addrconv() or uiplib_ip6addrconv() can be accomplished by the C preprocessor only thus avoiding the size/speed overhead of an additional callframe.
 2013-02-03 23:04:41 +01:00
Sébastien Dawans 95ab192e88 Makes RPL Initial Link Metric configurable 2013-02-01 09:02:31 +01:00
Simon Duquennoy 7c64a114aa Added missing include of contiki-conf.h 2013-01-23 16:11:02 +01:00
Robert Quattlebaum 5afcbf6fff Makefiles: Allow setting UIP_CONF_IPV6=0 to work as expected. 
Setting UIP_CONF_IPV6 to zero from the make build command line is
something that seems like it should ensure that IPv6 is disabled, but in
fact it actually *enables* IPv6. This seems counter intuitive, so this
patch changes the behavior of the makefiles to handle this case
properly.
 2013-01-14 22:03:42 -08:00
George Oikonomou 68f59113d6 Fix a route lifetime bug 
There is a bug in the current route purge routine which would
result in a route's lifetime getting decremented more than once
during the same pass. This commit fixes it

The bug is documented here:
http://thread.gmane.org/gmane.os.contiki.devel/16209
 2012-12-20 00:17:33 +00:00
Adam Dunkels 4324d74f12 Check callback pointers to avoid calling a NULL pointer 2012-12-10 01:50:37 +01:00
Adam Dunkels 83eb9a4ec3 Cleanup: removed the old routing table management functions that had previously been removed from compilation with #if 0 2012-11-27 23:04:34 +01:00
Adam Dunkels edf141046b Clean up of a few missing printf() that were converted into PRINTF()s 2012-11-27 23:04:34 +01:00
Adam Dunkels 43ecad5a99 Call the route callback API functions. 2012-11-27 23:04:33 +01:00
Adam Dunkels a9cab81d4e Added macros that allow handling IPv4 addresses even when uIP is configured to be an IPv6 stack 2012-11-27 23:04:33 +01:00
Adam Dunkels afe13b22bc Rewrote the uIP IPv6 route handling code. Instead of being nested deeply inside the uip-ds6.c file, the route management code is now in a separate file, uip-ds6-route.c. This file presents a lib/list.h API for the routes, which makes the route list much easier to use. Additionally, the uip-ds6-route.c file adds a callback API that invokes a callback when routes are added and removed. 2012-11-27 23:04:33 +01:00
Adam Dunkels b2063953ba Added a configuration option, UIP_SPLIT_CONF_SIZE, for setting the threshold at which point TCP packets get split into two. 2012-11-27 23:04:33 +01:00
Adam Dunkels f561bfc205 Added a function simple_udp_sendto_port() for sending a UDP packet to a specified port. 2012-11-27 23:04:32 +01:00
Adam Dunkels 5c5545ba7d Code style and debugging updates 2012-11-27 23:04:32 +01:00
Adam Dunkels 289a01b389 Added explicit functions uiplib_ip6addrconv and uiplib_ip4addrconv for converting IPv6 and IPv4 addresses, regardless of whether uIP was configured to run as an IPv4 or an IPv6 stack. 2012-11-27 23:04:32 +01:00
Adam Dunkels 0bad2b1748 Added a configuration option to annotate IP transmissions with red arrows in Cooja. 2012-11-27 23:04:32 +01:00
Adam Dunkels b24157631f Made nd6 maximum unicast solicitation messages configurable 2012-11-27 23:04:32 +01:00
Adam Dunkels 2a2175a214 Make RPL DIS transmission interval random in the interval [0, INTERVAL/2]. This is needed to avoid synchronization in large RPL networks. 2012-11-27 23:04:31 +01:00
Adam Dunkels 2396f9b8ea Made DIO interval processing a little easier to follow. Explicitly state that the delay is handled as clock timer ticks. 2012-11-27 23:04:31 +01:00
Adam Dunkels 8538aaf655 Made RPL DAO latency configurable 2012-11-27 23:04:31 +01:00
Adam Dunkels 357b13b3d3 Correctly handle upward and downward routes according to Section 1.2 of RFC6550 2012-11-27 23:04:31 +01:00
Adam Dunkels 15deb37e64 Updated DAG version processing to occur even for infinite rank DIOs. This makes it possible for the RPL root to infer the DAG version number from a network that hasn't had a root for a while, and where the rank has increased to infinity. 2012-11-27 23:04:30 +01:00