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nixos/iftop: add module

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This patch is heavily inspired by bd0d8ed807 which added
a setcap wrapper for `mtr` in order to allow running `mtr` without
`sudo`. The need for the capability `cap_net_raw` that can be registered using
`setcap` has been documented in the Arch Wiki: https://wiki.archlinux.org/index.php/Capabilities#iftop

A simple testcase has been added which starts two machines, one with a
setcap wrapper for `iftop`, one without. Both testcases monitor the
bandwidth usage of the machine using the options `-t -s 1` once, the
machine with setcap wrapper is expected to succeed, the `iftop` on the
machine without setcap wrapper is expected to return a non-zero exit
code.
This commit is contained in:
Maximilian Bosch 2018-04-07 15:06:51 +02:00
parent f8fe297ff1
commit 50a34e55b2
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nixos/modules/module-list.nix
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@ -86,6 +86,7 @@
./programs/freetds.nix
./programs/gnupg.nix
./programs/gphoto2.nix
./programs/iftop.nix
./programs/java.nix
./programs/kbdlight.nix
./programs/less.nix