Hello sir,
I wanted to clarify on some concepts in firewall hooks. I found FW_QUEUE
as a return type in firewall hook functions in some codes which use
firewall hooks. I wanted to know the significance of FW_QUEUE. When is
this used as a return type in firewall hook functions ??
In the tcp/ip code for kernel 2.2.20, in ip_output.c; one of the
comments says that when call_out_firewall returns FW_QUEUE silently drop
the skb.
Can you please elaborate on this.
Thanks in advance
Regards
Puja Puri
Hello!
I use the TBF filter with good results on my computer. When I set a rate
with the filter the traffic get shaped accordingly.
I have set up a couple of UML-instances (user-mode-linux) as a network
to test different QoS strategies. My problem is that the TBF calculates
the wrong rates. An UML-instance may get interrupted just like any other
program. Does the timing code in TBF presume that the kernel wont be
interrupted, and therefore generates the wrong rates?
Ragards,
Gabriel Paues
UML will never work well. The issue is related to the timer effects
in UML. I believe its more of a clock skew and innacuracy than TBF making
assumptions.
cheers,
jamal
On Thu, 8 Aug 2002, Gabriel Paues wrote:
Hello!
I use the TBF filter with good results on my computer. When I set a rate
with the filter the traffic get shaped accordingly.
I have set up a couple of UML-instances (user-mode-linux) as a network
to test different QoS strategies. My problem is that the TBF calculates
the wrong rates. An UML-instance may get interrupted just like any other
program. Does the timing code in TBF presume that the kernel wont be
interrupted, and therefore generates the wrong rates?
Ragards,
Gabriel Paues