From: "Rémi Denis-Courmont" <remi@remlab.net>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] avformat/rtpproto: add support for RTP/UDP socket reuse
Date: Sat, 31 Dec 2022 21:34:06 +0200
Message-ID: <12120876.O9o76ZdvQC@basile.remlab.net> (raw)
In-Reply-To: <Y6oWZbgVGo3GhC8F@phare.normalesup.org>
Le maanantaina 26. joulukuuta 2022, 23.47.17 EET Nicolas George a écrit :
> "zhilizhao(赵志立)" (12022-12-26):
> > Just use the same socket file descriptor. Don’t use OS dependent hack to
> > implement a feature.
>
> SO_REUSEADDR is absolutely not a hack.
So I agree that SO_REUSEADDR is "absolutely not a hack"... if you use it to
recycle IP/port pair without waiting for the time-out. But that's mainly of
interest of listening/receiving sockets.
If you use it to bind two concurrent sockets on the same IP/port pair, then it
is absolutely not just a hack but a platform-dependent non-portable hack and a
latent vulnerability in the OS (since one process can hijack datagrams for
another).
--
レミ・デニ-クールモン
http://www.remlab.net/
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next prev parent reply other threads:[~2022-12-31 19:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-22 15:28 Camille Oudot
2022-12-22 15:42 ` Camille Oudot
2022-12-22 19:32 ` Nicolas George
2022-12-24 11:36 ` Rémi Denis-Courmont
2022-12-24 13:07 ` Camille Oudot
2022-12-25 10:00 ` Rémi Denis-Courmont
2022-12-25 23:52 ` Camille Oudot
2022-12-26 3:20 ` "zhilizhao(赵志立)"
2022-12-26 21:47 ` Nicolas George
2022-12-27 0:46 ` "zhilizhao(赵志立)"
2022-12-31 19:34 ` Rémi Denis-Courmont [this message]
2023-01-03 9:03 ` Camille Oudot
2023-01-03 16:03 ` Rémi Denis-Courmont
2023-01-03 19:13 ` Camille Oudot
2023-01-03 19:43 ` Nicolas George
2023-01-04 11:24 ` Camille Oudot
2023-01-05 12:16 ` Nicolas George
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