From: David Gibson <david@gibson.dropbear.id.au>
To: passt-dev@passt.top, Stefano Brivio <sbrivio@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH v2 0/3] Probe host's ephemeral ports, rather than using RFC values
Date: Thu, 29 Aug 2024 11:32:39 +1000 [thread overview]
Message-ID: <20240829013242.3396770-1-david@gibson.dropbear.id.au> (raw)
As discussed on our recent call, this implements basing which ports we
consider "ephemeral" on probing the host's settings, rather than just
assuming the RFC 6335 recommended values, which are not what Linux
uses by default.
I think this is more correct, but additionally using the Linux values
means we consider more ports ephemeral, reducing kernel memory
consumption for -t all -u all.
Changes in v2:
* Add missing close() for the sysctl file
David Gibson (3):
conf, fwd: Make ephemeral port logic more flexible
conf, fwd: Don't attempt to forward port 0
fwd, conf: Probe host's ephemeral ports
conf.c | 19 +++++++++++----
fwd.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
fwd.h | 3 +++
util.h | 3 ---
4 files changed, 92 insertions(+), 7 deletions(-)
--
2.46.0
next reply other threads:[~2024-08-29 1:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-29 1:32 David Gibson [this message]
2024-08-29 1:32 ` [PATCH v2 1/3] conf, fwd: Make ephemeral port logic more flexible David Gibson
2024-08-29 4:59 ` Stefano Brivio
2024-08-29 6:53 ` David Gibson
2024-08-29 1:32 ` [PATCH v2 2/3] conf, fwd: Don't attempt to forward port 0 David Gibson
2024-08-29 1:32 ` [PATCH v2 3/3] fwd, conf: Probe host's ephemeral ports David Gibson
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