rawsocket & fork

quantt · 04-02-2009, 06:00 AM

hi all,
I've idea run daemon from root and bind raw socket, than fork new child from a user !=0 pid and use those socket which I already bind from root.
It's like apache, but it use just socket, when I needs with raw.
Tell me, it would be work or not?

dwhitney67 · 04-02-2009, 07:44 AM

I cannot think of a reason why it would not work. However, why would you want to do this? And why use a raw-socket? A raw-socket should only be used if you plan to configure something in the IP header (e.g. ToS byte).

I've dealt with raw-sockets recently, and I fail to find the "glory" behind them unless there is an absolute need for them. Otherwise, for most applications, a regular socket (TCP or UDP) is just fine.

quantt · 04-02-2009, 08:36 AM

Quote:

I've dealt with raw-sockets recently

Did you tried use it from user?

dwhitney67 · 04-02-2009, 08:44 PM

Quote:

Originally Posted by quantt

Did you tried use it from user?

Yes... and I found out it is not possible to create a raw socket. One must have root-privileges (or the program suid bit set) to create a raw socket.