Hi, On Wed, Aug 13, 2014 at 07:16:51PM +0200, Cristiano wrote: > * > Hi, > I eventually succeeded merging the Raspberry Pi 3.16+ kernel on net-next > with trivial merge conflicts (resolved). > I understand that the old linux-zigbee wiki is here now: > > http://linux-zigbee.sourceforge.net/cgi-bin/trac.cgi/wiki/GettingStarted-0.2 > > But it looks quite outdated/wrong. So I rewrote it for myself. Anyway I > still have problems which are described at the end. > Here it is: > > Build an 802.15.4-enabled Linux kernel with the following options: > > CONFIG_IEEE802154=y > CONFIG_IEEE802154_6LOWPAN=m > CONFIG_MAC802154=m > CONFIG_IEEE802154_DRIVERS=y > # CONFIG_IEEE802154_FAKEHARD is not set > CONFIG_IEEE802154_FAKELB=m > > If you have a hardware device you may want to enable: > CONFIG_IEEE802154_AT86RF230=m > CONFIG_IEEE802154_MRF24J40=m > CONFIG_IEEE802154_CC2520=m > > Update your bootloader and boot your new kernel. > > In our simulated network we will have 3 fake radios. One these radio > interfaces, we will start 3 nodes which will have short addresses 0x1, > 0x8001 and 0x8002. Node 0x1 will act as a coordinator and shall run > izcoordinator on it, which will handle network with PAN ID 0x777. Nodes > 0x8001 and 0x8002 will associate with coordinator and will receive addresses > after association. We will start izchat tool on these nodes, and will use > Wireshark to monitor network traffic. > Before you start you should check that everything works. If you try the > following command: > > Create 3 fake radio interfaces for network devices: > # modprobe fakelb numlbs=3 > > Check it with: > # iz listphy > > You should see the following output: > wpan-phy0 IEEE 802.15.4 PHY object > page: 0 channel: n/a > channels on page 0: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > 21 22 23 24 25 26 > channels on page 1: 0 1 2 3 4 5 6 7 8 9 10 > channels on page 2: 0 1 2 3 4 5 6 7 8 9 10 > channels on page 3: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 > channels on page 4: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 > channels on page 5: 0 1 2 3 4 5 6 7 > channels on page 6: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > 21 > > wpan-phy1 IEEE 802.15.4 PHY object > page: 0 channel: n/a > channels on page 0: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > 21 22 23 24 25 26 > channels on page 1: 0 1 2 3 4 5 6 7 8 9 10 > channels on page 2: 0 1 2 3 4 5 6 7 8 9 10 > channels on page 3: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 > channels on page 4: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 > channels on page 5: 0 1 2 3 4 5 6 7 > channels on page 6: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > 21 > > wpan-phy2 IEEE 802.15.4 PHY object > page: 0 channel: n/a > channels on page 0: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > 21 22 23 24 25 26 > channels on page 1: 0 1 2 3 4 5 6 7 8 9 10 > channels on page 2: 0 1 2 3 4 5 6 7 8 9 10 > channels on page 3: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 > channels on page 4: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 > channels on page 5: 0 1 2 3 4 5 6 7 > channels on page 6: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > 21 > > Create 3 radio interfaces, one per each phy: > # iz add wpan-phy0 > Registered new device ('wpan0') on phy wpan-phy0 > # iz add wpan-phy1 > Registered new device ('wpan1') on phy wpan-phy1 > # iz add wpan-phy2 > Registered new device ('wpan2') on phy wpan-phy2 > > Set distinct hw addresses: > # ip link set wpan0 address de:ad:be:af:ca:fe:ba:be > # ip link set wpan1 address ca:fe:ca:fe:ca:fe:ca:fe > # ip link set wpan2 address be:be:be:be:be:be:be:be > > Bring up logical interfaces (by default, one logical interface is associated > with each radio): > # ifconfig wpan0 up > # ifconfig wpan1 up > # ifconfig wpan2 up > > Start wireshark to monitor traffic on the network: > > # wireshark -i wpan0 -k > Start coordinator (you need to do it as root as well): > > # touch lease > # izcoordinator -d 1 -l lease -i wpan0 -p 0x777 -s 1 -c 11 & > coordinator support isn't supported at the moment. > If using the mainline kernel, assign short addresses manually using iz set: > # iz set wpan1 777 8001 11 > # iz set wpan2 777 8002 11 > > Start simple chat program in two different consoles/terminals (0x8001 and > 0x8002 are the short addresses are received during association): > # izchat 777 8001 8002 > # izchat 777 8002 8001 > > Bring up 6LoWPAN: > # ip link add link wpan0 name lowpan0 type lowpan > # ip link set lowpan0 up > > # ip link add link wpan1 name lowpan1 type lowpan > # ip link set lowpan1 up > > # ip link add link wpan2 name lowpan2 type lowpan > # ip link set lowpan2 up > > Check with: > # ifconfig lowpan0 > # ifconfig lowpan1 > # ifconfig lowpan2 > > You should see the following output: > lowpan0 Link encap:UNSPEC HWaddr > DE-AD-BE-AF-CA-FE-BA-BE-00-00-00-00-00-00-00-00 > inet6 addr: fe80::dcad:beaf:cafe:babe/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1281 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > lowpan1 Link encap:UNSPEC HWaddr > CA-FE-CA-FE-CA-FE-CA-FE-00-00-00-00-00-00-00-00 > inet6 addr: fe80::c8fe:cafe:cafe:cafe/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1281 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > lowpan2 Link encap:UNSPEC HWaddr > BE-BE-BE-BE-BE-BE-BE-BE-00-00-00-00-00-00-00-00 > inet6 addr: fe80::bcbe:bebe:bebe:bebe/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1281 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > We can see that Stateless Auto Configuration (SLAC) for the link local > address works. > > Ping between nodes: > # ping6 fe80::c8fe:cafe:cafe:cafe%lowpan0 > # ping6 fe80::bcbe:bebe:bebe:bebe%lowpan0 > # ping6 fe80::bcbe:bebe:bebe:bebe%lowpan1 > # ping6 fe80::dcad:beaf:cafe:babe%lowpan1 > # ping6 fe80::dcad:beaf:cafe:babe%lowpan2 > # ping6 fe80::c8fe:cafe:cafe:cafe%lowpan2 > > > Anyway I have problems pinging the nodes when specifying a ping with payload > size greater than 93. For example, pinging lowpan0 from lowpan1: > > # ping6 -s94 fe80::dcad:beaf:cafe:babe%lowpan1 > > I don't get anything back (no output at all). > > Running Tshark on lowpan0 (fe80::dcad:beaf:cafe:babe) shows this: > > sudo tshark -i lowpan0 > tshark: Lua: Error during loading: > [string "/usr/share/wireshark/init.lua"]:45: dofile has been disabled > Running as user "root" and group "root". This could be dangerous. > Capturing on lowpan0 > 0.000000 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 64 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: > ca:af:bead:dc:0000:00[Malformed Packet] > 0.000363 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 48 > Neighbor Advertisement fe80::dcad:beaf:cafe:babe (sol) > 5.009835 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 64 > Neighbor Solicitation for fe80::c8fe:cafe:cafe:cafe from > de:ad:be:af:ca:fe:ba:be > 5.010874 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 48 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00[Packet > size limited during capture] > 47.019946 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 64 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: > ca:af:bead:dc:0000:00[Malformed Packet] > 47.020289 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 48 > Neighbor Advertisement fe80::dcad:beaf:cafe:babe (sol) > 52.029831 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 64 > Neighbor Solicitation for fe80::c8fe:cafe:cafe:cafe from > de:ad:be:af:ca:fe:ba:be > 52.030435 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 48 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00[Packet > size limited during capture] > > Specifying a ping payload size lesser than or equal to 93 somewhat works and > Tshark output looks like this: > > sudo tshark -i lowpan0 > tshark: Lua: Error during loading: > [string "/usr/share/wireshark/init.lua"]:45: dofile has been disabled > Running as user "root" and group "root". This could be dangerous. > Capturing on lowpan0 > 0.000000 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 125 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00 > 0.000417 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 125 > Echo (ping) reply id=0x1147, seq=1 > 1.001208 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 125 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00 > 1.001536 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 125 > Echo (ping) reply id=0x1147, seq=2 > 2.002675 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 125 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00 > 2.002997 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 125 > Echo (ping) reply id=0x1147, seq=3 > 3.004102 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 125 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00 > 3.004424 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 125 > Echo (ping) reply id=0x1147, seq=4 > 4.005586 ca:af:be:ad:dc:00:00:00 -> 00:00:00:80:fe:fe:ca:fe IEEE 802.15.4 > 125 Beacon, Dst: 00:00:00_80:fe:fe:ca:fe, Src: ca:af:bead:dc:0000:00 > 4.006001 fe80::dcad:beaf:cafe:babe -> fe80::c8fe:cafe:cafe:cafe ICMPv6 125 > Echo (ping) reply id=0x1147, seq=5 > wireshark with lowpan interface is broken. > Is this a 6lowpan fragmentation issue? Looks like but I tested it with current net-next kernel and it works. Maybe you did something wrong with merging your rpi with net-next. Try it under a qemu vm. Do you have these patches: http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=eb06481d69c60f6f9318e935053dce13fe3e8951 and http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=51263fffadee28c99152fb78a2d41e3d10c9b0b5 but this is in current net-next, there was a little time where this was broken. > Tshark output looks weird expecially decoding IEEE 802.15.4 frames > (addresses do not look good and what are those Beacon frames that only > appear after started pinging?). > Also, ICMPv6 echo requests are not present in the Tshark output. > > Can anybody try the above instructions and confirm the issue? > I tested it and it works on my side. btw. there exists a new mailinglist for this project: http://vger.kernel.org/vger-lists.html#linux-wpan - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
