"could not set route to tunnel gw" error in Ubuntu 16.04

[jjamor]

Hello,

I recently upgraded to Ubuntu 16.04. Since that upgrade, I cannot connect using openfortivpn because:

DEBUG:  ip route add to 0.0.0.0/106.127.0.0 dev ppp0
WARN:   Could not set route to tunnel gateway (Address family not supported by protocol).

May be linux version (4.4.0)?

Could you help us?

Thanks!

[adrienverge]

Hi,

I don't have access to a Fortinet VPN anymore so I can't help you here.

Any help from anyone is welcome!

[mata-p]

I noticed the same, I think the cause is that here tunnel.ipv4.split_routes is not inizialized to 0.
Another manifestation of the same I noticed was a buffer overflow which crashed the program here

char env_var[21];
// ...
sprintf(env_var, "VPN_ROUTE_DEST_%d", tunnel->ipv4.split_routes);

because the value was too big to fit into env_var. Initializing the variable to 0 fixes that.
To be safe I blanketed the whole struct before using it with

memset(&tunnel, 0, sizeof(tunnel));

[jjamor]

Hi @mata-p , many thanks!

I just tested your change, and it works!

Can you generate a pull request?

Thanks!

[adrienverge]

I just pushed a fix to master, many thanks to @mata-p for finding the cause!