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mptcpize run <command>
fails if <command> uses 'socket(AF_INET, SOCK_STREAM, IPPROTO_IP)' instead of
'socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)'
mptcpize enable <unit>
fails if the /tmp directory is located on a different fs WRT the unit file itself.
Solved by the following upstream commits:
commit 591b3b168d949c45d5b5994332a3007767845434
Author: Paolo Abeni <paolo.abeni>
Date: Thu Oct 14 05:05:54 2021 +0200
mptcpize: use explicit file copy instead of rename() (#161)
commit 5633f08e35552295b2f9414ff32ca4e8e081b2f2
Author: Paolo Abeni <paolo.abeni>
Date: Tue Oct 12 19:24:33 2021 +0200
mptcpize: force MPTCP usage for IPPROTO_IP, too (#159)
@xmu, this can be verified by looking whether the listening socket got the TCP_ULP attached. See below:
# mptcpize run ncat -l 0.0.0.0 1234 &
# ss -santi | grep -A1 1234
LISTEN 0 10 0.0.0.0:1234 0.0.0.0:*
cubic cwnd:10 tcp-ulp-mptcp flags:m token:0000(id:0)/0000(id:0) seq:0 sfseq:0 ssnoff:0 maplen:0
<ctrl+c>
# mptcpize run iperf3 -s -p 1234 &
# ss -santi | grep -A1 1234
LISTEN 0 4096 *:1234 *:*
cubic cwnd:10
I'm in the progress of doing a build that backports a fix for this problem, so MPTCP testing with native applications will be much easier. I see you provided 'qa_ack+', can you please set a value >= 16 for the ITM? thanks!
Hi Davide,
I tested "mptcpize run" fololowed comment #2,
how to test "mptcp enable" for patch "mptcpize: use explicit file copy instead of rename()"?
Thanks
hello Xiumei, thanks for confirming!
(In reply to xmu from comment #9)
> Hi Davide,
> I tested "mptcpize run" fololowed comment #2,
> how to test "mptcp enable" for patch "mptcpize: use explicit file copy
> instead of rename()"?
> Thanks
I *think* it should be sufficient to mptcpize a command that is in '/tmp' rather than '/usr/bin'. On mptcpd-0.8-1.el9 that should fail to mptcpize.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (new packages: mptcpd), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2022:2417
mptcpize run <command> fails if <command> uses 'socket(AF_INET, SOCK_STREAM, IPPROTO_IP)' instead of 'socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)' mptcpize enable <unit> fails if the /tmp directory is located on a different fs WRT the unit file itself. Solved by the following upstream commits: commit 591b3b168d949c45d5b5994332a3007767845434 Author: Paolo Abeni <paolo.abeni> Date: Thu Oct 14 05:05:54 2021 +0200 mptcpize: use explicit file copy instead of rename() (#161) commit 5633f08e35552295b2f9414ff32ca4e8e081b2f2 Author: Paolo Abeni <paolo.abeni> Date: Tue Oct 12 19:24:33 2021 +0200 mptcpize: force MPTCP usage for IPPROTO_IP, too (#159)