Wireshark · Wireshark-dev: Re: [Wireshark-dev] Setcap in ubuntu 20.04

[Dario Lombardo <lomato@xxxxxxxxx>]

Another user on SO suggested a fix

https://stackoverflow.com/questions/58255970/wireshark-dumpcap-with-setcap-set-to-no-root-capture-failes-to-start-in-ubuntu-1

However I'm pretty sure I've run wireshark from the build dir before with setcap.

On Wed, Jan 6, 2021 at 9:20 PM Dario Lombardo <lomato@xxxxxxxxx> wrote:

Hi

I got a new laptop and I took the chance to upgrade my OS. Now I have Ubuntu 20.04. Today I had an unexpected behavior. After compilation, I issued the setcap command, but then I got:

$ sudo setcap cap_net_raw,cap_net_admin=eip run/dumpcap
$ ./run/dumpcap -D
./run/dumpcap: error while loading shared libraries: libwsutil.so.0: cannot open shared object file: No such file or directory

Removing the capabilities gave my dumpcap back.

$ sudo setcap -r run/dumpcap
$ ./run/dumpcap -D
1. wlp59s0
2. nlmon0
3. lo (Loopback)
[...]

Another user from ask, hit the same problem, like 1 year ago, on ubuntu 18: https://ask.wireshark.org/question/12115/wireshark-dumpcap-with-setcap-set-to-no-root-capture-failes-to-start-in-ubuntu-1810/

I'm still trying to figure out if I made other configurations before, but I can't recall anything useful.

Any ideas?

Thanks.

Dario.

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