tun2socks udpgw doesn't work with linux 3.19

[felixonmars]

I am getting a problem when running tun2socks with linux 3.19. badvpn-tun2socks process takes 100% CPU, and there are no udpgw messages in stdout. TCP tunneling seems to work well, but UDP doesn't. A Ctrl-C or SIGTERM could not terminate the program either, only SIGKILL would do. Downgrading linux kernel to 3.18.x fixes all this.

[LazyZhu]

You can try this udprelay version: https://github.com/LazyZhu/badvpn/tree/udprelay
I merged @linusyang's https://github.com/linusyang/badvpn/commit/c7692ff37bddec3b0274692478874eba29c93eef to the master.

[ladf]

Hi,
This bug is a big problem, running Arch Linux.
We've tried the suggested udprelay version but it does not help.

[ambrop72]

Workaround implemented in 92a2fc8, and included in new release 1.999.130.
The cause is a breaking change of behavior of the TUN/TAP device in kernel 3.19: https://bugzilla.kernel.org/show_bug.cgi?id=96381

[felixonmars]

Thanks! The new version works fine for me.

[ladf]

Excellent, thanks!