Hi all,
So after my ordeal with the Hello world app...I've jumped onto to a
more audacious task! :)
...to get some basic networking working with the virt TAP device.
This is what I did:
$ mkdir net
$ cd net
$ ecosconfig new linux
$ ecosconfig add fileio net freebsd_net eth_drivers
$ ecosconfig tree
(alter the usual suspects i.e command prefix, GCC switch fno-statck-... etc)
$ make
(fix libgcc_eh.a thingy)
$ make tests
I've configured static IP for eth0 on ecos
Self IP=10.0.0.2
netmask=255.255.255.0
gw=10.0.0.1
server=10.0.0.10
I used the tdf file given here:
http://dsl.ee.unsw.edu.au/dsl-cdrom/unsw/projects/ecos/ecos/packages/devs/eth/synth/ecosynth/current/host/ethernet.tdf
This file creates a TAP device tap3 with MAC=00:FE:42:63:84:A5
I've also built the rawether app (this has the suid bit set):
$ ls -l /usr/local/libexec/ecos/devs/eth/synth/ecosynth/v3_0/rawether
-rwsr-xr-x 1 root root 19339 2009-07-23 16:04
/usr/local/libexec/ecos/devs/eth/synth/ecosynth/v3_0/rawether
My system also has the tun device:
$ ls -l /dev/net/tun
crw-rw-rw- 1 root root 10, 200 2009-07-17 09:57 /dev/net/tun
Now when I run the ping_test app, I see both the "ecossynth" and
"rawether" process's running, but no
tap device is created! Shouldn't the rawether proc open the tun device
which will result in the tap3
device being created?
The ping test does not succeed though but thats because there's no
other interface on the 10 network.
Test run o/p attached.
Thanks,
-mandeep
[cyg_net_init] Init: mbinit(0x00000000)
[cyg_net_init] Init: cyg_net_init_devs(0x00000000)
Init device 'synth_eth0'
[cyg_net_init] Init: loopattach(0x00000000)
[cyg_net_init] Init: ifinit(0x00000000)
[cyg_net_init] Init: domaininit(0x00000000)
[cyg_net_init] Init: cyg_net_add_domain(0x02001700)
New domain internet at 0x00000000
[cyg_net_init] Init: cyg_net_add_domain(0x02001140)
New domain route at 0x00000000
[cyg_net_init] Init: call_route_init(0x00000000)
[cyg_net_init] Done
Start PING test
BOOTP[eth0] op: REPLY
htype: Ethernet
hlen: 6
hops: 0
xid: 0x0
secs: 0
flags: 0x0
hw_addr: 00:fe:42:63:84:a5
client IP: 10.0.0.2
my IP: 10.0.0.2
server IP: 10.0.0.10
gateway IP: 10.0.0.1
options:
subnet mask: 255.255.255.0
IP broadcast: 10.0.0.255
gateway: 10.0.0.1
PING server 10.0.0.10
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
Sent 16 packets, received 0 OK, 0 bad
PING server 10.0.0.42
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
recvfrom: Operation timed out
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
sendto: Host is down
Sent 16 packets, received 0 OK, 0 bad
PASS:<Ping test OK>
EXIT:<done>
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