it seems I've found some kernel bug: https://gist.github.com/alejolp/c96089059af378bffd3c0363d8a29b03
# ./a.out em1 "LU4EXT-15" Creating TAP AX25 device name em1, call name LU4EXT-15 dev 3 name em1 # beacon -s LU4EXT hola Message from syslogd@debian at Jun 1 16:11:24 ... kernel:[ 2589.973799] skbuff: skb_under_panic: text:ffffffffa0a36810 len:20 put:15 head:ffff880223282a00 data:ffff8802232829fe tail:0x12 end:0xc0 dev:<NULL> The complete Kernel call trace from dmesg is in the gist On Wed, Jun 1, 2016 at 2:31 PM, Alejandro Santos <[email protected]> wrote: > Hi all, > > I've just double checked this and I agree, I'm unable to set the SSID. > > Also tried manually with ifconfig and axparms, the SSID is ignored: > > em0 is a TAP device. > > # axparms -setcall em0 "LU4EXT-15" > # LANG=C ifconfig em0 > em0 Link encap:AMPR AX.25 HWaddr LU4EXT > BROADCAST MULTICAST MTU:256 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:500 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > # ifconfig em0 hw ax25 "LU4EXT-15" mtu 256 > # LANG=C ifconfig em0 > em0 Link encap:AMPR AX.25 HWaddr LU4EXT > BROADCAST MULTICAST MTU:256 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:500 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > 73 > Alejandro > > > > On Tue, May 31, 2016 at 7:58 PM, folkert <[email protected]> wrote: >> Hi, >> >> While trying to use tap-devices for ax.25 I noticed some issues. >> Biggest issue being that I could not get it to work. Now some guy on >> stackoverflow dug a bit further and apparently something goes wrong >> with the ssid. >> http://stackoverflow.com/questions/22465138/creating-a-tun-network-device-with-ax-25-encapsulation/37534385#37534385 >> I thought you may wanted to know this. >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-hams" in >> the body of a message to [email protected] >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > Alejandro Santos -- Alejandro Santos -- To unsubscribe from this list: send the line "unsubscribe linux-hams" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
