execute network partition attack failed

[WangXiangUSTC]

when executing network partition attack, chaosd will run iptables command like below:

iptables -w ...

But -w is not provided in iptables before v1.6, so it will run failed in this situation.

[WangXiangUSTC]

For iptables, the same version in different Linux distributions may have different parameters. For example, iptables 1.4.21 on RHEL contains -w, but it is not in SUSE.

[huang325]

Seems the effactive code is here.

Based on official ChangeLog of iptables, -w flag has added an optional [seconds] argument since v1.6.0

However, there are evidence shows that even in 1.4.21, some OS, such as RHEL, already supported that [seconds] argument. So it's not straightforward to decide the command based on version number.

Simply remove the time argument may cause the process keep holding when xtables lock is not available.