Re: [lwip-users] Detail usage of ppp (address@hidden)

[address@hidden]

Paul Archer wrote:
> Done
> http://lwip.wikia.com/wiki/PPP#PPP_from_an_application_perspective
Cool, thanks for that!
> I hope that is in the correct place. if anyone wants to have a read an
> comment/fix any mistakes feel free to.
I'm not too sure about multithreading, regarding thread-safety: 
functions like pppOverSerialOpen and pppClose are *not* designed to be 
thread-safe and should thus only be called from tcpip_thread. I know 
that examples have been around which use the functions like that, but 
they access common structures without locking, which could lead to 
concurrency problems.

Aside from that, what's the 'done' variable (in the loop after 
pppOverSerialOpen())? Did you mean "while(!connected)"? Because that's 
what you pass to pppOverSerialOpen, too?
> I might add a section on debugging PPP (as it can be hard to know if
> you got the username/password correct)
Now that would really be a nice thing to have: I can comment on code and 
how ppp interacts with lwIP, but unfortunately, I don't have too much 
knowledge about ppp internals. This might be handy for me, too!

David Empson also already wrote some helpful hints on lwip-users around 
two months ago, we could add a link to this mail (or some parts of it) 
to the wiki: 
http://lists.nongnu.org/archive/html/lwip-users/2011-06/msg00036.html

Simon