Utils / network: improvements to ping_flood() #6063
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Signed-off-by: Cleber Rosa <crosa@redhat.com>
It's not possible for regular users to flood ping without a interval of less than 2 ms: ping: cannot flood, minimal interval for user must be >= 2 ms, use -i 0.002 (or higher) Given that it's a fact, let's improve the odds of this function behaving well by not causing the ping utility to simply error out in such situations. Signed-off-by: Cleber Rosa <crosa@redhat.com>
The implementation of ping_flood() counts on the output generated by the ping command line utility. But, the way and amount of data it reads looking for the failure pattern is both too small and is susceptible to timing issues. In order to minimize those possibilities, let's send error messages (which will never contain the info this function is looking for) to another file. It also allows to use that as an improvement to the log messages. Signed-off-by: Cleber Rosa <crosa@redhat.com>
The ping_flood() function is a bit delicate, and further improvements are needed. To make sure we introduce improvements and not regressions, let's add some basic functional tests. Signed-off-by: Cleber Rosa <crosa@redhat.com>
…tests We have the name of the suite, so let's give it to users when printing out a possible mismatch. Signed-off-by: Cleber Rosa <crosa@redhat.com>
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #6063 +/- ##
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+ Coverage 54.46% 54.52% +0.06%
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Files 202 202
Lines 21883 21884 +1
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+ Hits 11919 11933 +14
+ Misses 9964 9951 -13 ☔ View full report in Codecov by Sentry. |
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This contains a number of improvements to the
ping_flood()utility.