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Date:      Sun, 29 Jan 2017 03:04:34 +0000
From:      bugzilla-noreply@freebsd.org
To:        gecko@FreeBSD.org
Subject:   [Bug 212028] www/firefox: Add SNDIO option
Message-ID:  <bug-212028-21738-mN36NFfH00@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-212028-21738@https.bugs.freebsd.org/bugzilla/>
References:  <bug-212028-21738@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212028

Jan Beich (mail not working) <jbeich@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jbeich@FreeBSD.org

--- Comment #9 from Jan Beich (mail not working) <jbeich@FreeBSD.org> ---
(In reply to Tobias Kortkamp from comment #8)
> I never tried to run sndiod in a jail before. I usually start it on
> the host and use sndiod's networking feature for this.

If sndiod is running outside it's just one more way to escape jail. And the=
re's
no pledge(2) support to limit what one can see outside.

> Running it directly from the command line as the non-root user you run
> Firefox as (e.g. `sndiod -dd -f rsnd/5` if you use /dev/dsp5) should
> make it run in a jail.

It works but not inside jail.

  $ sndiod -dd -f rsnd/3 &
  snd0.default: rec=3D0:1 play=3D0:1 vol=3D23170 dup

  $ firefox -no-remote youtube.com
  snd0: 48000Hz, s16le, play 0:1, rec 0:1, 8 blocks of 512 frames
  firefox0: 48000Hz, s16le, play 0:1, 9 blocks of 512 frames
  snd0: device started
  firefox0: attached at -4096, delta =3D 0
  snd0: disconnected

> If you haven't changed any of the hw.snd.report_* sysctls...

$ fgrep hw.snd /boot/loader.conf
hw.snd.verbose=3D2
hw.snd.latency=3D3
hw.snd.latency_profile=3D0
hw.snd.feeder_rate_quality=3D4

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