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SocketServer should set SO_REUSEPORT along with SO_REUSEADDR when present #60798

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AndyZeldis mannequin opened this issue Dec 2, 2012 · 3 comments
Closed

SocketServer should set SO_REUSEPORT along with SO_REUSEADDR when present #60798

AndyZeldis mannequin opened this issue Dec 2, 2012 · 3 comments
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3.11 only security fixes stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error

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@AndyZeldis
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AndyZeldis mannequin commented Dec 2, 2012

BPO 16594
Nosy @gvanrossum, @asvetlov, @aisk
PRs
  • bpo-16594: Add allow_reuse_port on socketserver #30072
    		•
    Files
  • osc-broadcast-rcv.py: SocketServer broadcast receive workaround
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
closed_at = <Date 2021-12-13.13:33:49.165>
created_at = <Date 2012-12-02.09:07:29.427>
labels = ['type-bug', 'library', '3.11']
title = 'SocketServer should set SO_REUSEPORT along with SO_REUSEADDR when present'
updated_at = <Date 2021-12-13.13:33:49.164>
user = 'https://bugs.python.org/AndyZeldis'

    bugs.python.org fields:

    activity = <Date 2021-12-13.13:33:49.164>
actor = 'asvetlov'
assignee = 'none'
closed = True
closed_date = <Date 2021-12-13.13:33:49.165>
closer = 'asvetlov'
components = ['Library (Lib)']
creation = <Date 2012-12-02.09:07:29.427>
creator = 'Andy.Zeldis'
dependencies = []
files = ['28183']
hgrepos = []
issue_num = 16594
keywords = ['patch']
message_count = 3.0
messages = ['176777', '205125', '408447']
nosy_count = 4.0
nosy_names = ['gvanrossum', 'asvetlov', 'Andy.Zeldis', 'asaka']
pr_nums = ['30072']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue16594'
versions = ['Python 3.11']
    @AndyZeldis
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    AndyZeldis mannequin commented Dec 2, 2012

    On BSD (including Mac OS X) SO_REUSEPORT should be specified along with SO_REUSEADDR to match behavior on Linux (and possible Windows). This is needed to have multiple listeners to a UDP broadcast.

    I discovered this when using PyOSC. Attached is an example modified to subclass SocketServer with a workaround. It should be possible to start multiple instances of this program, all of which will receive messages to a broadcast address (eg 255.255.255.255:7110).

    This test uses Python 2.7 on OS X (despite the "python3" shebang line from the example)

    @AndyZeldis AndyZeldis mannequin added stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error labels Dec 2, 2012
    @gvanrossum
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    Note: it is possible that SO_REUSEPORT is defined yet not implemented (and you'll get an OSError when using it).

    @asvetlov
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    New changeset b56774b by AN Long in branch 'main':
    bpo-16594: Add allow_reuse_port on socketserver (GH-30072)
    b56774b

    @asvetlov asvetlov added the 3.11 only security fixes label Dec 13, 2021
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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