[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
** Also affects: openssh (Ubuntu Precise) Importance: Undecided Status: New ** Changed in: openssh (Ubuntu Precise) Status: New = Triaged ** Changed in: openssh (Ubuntu Precise) Importance: Undecided = Medium ** Changed in: openssh (Ubuntu) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
This should be fixed in Quantal+ but is still apparent in Precise. Are there any plans to backport this? ** Changed in: openssh (Ubuntu) Status: Confirmed = Fix Committed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
Yes please fix this for precise.. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
Please can we have this update in Ubuntu soon? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
** Changed in: openssh (Debian) Status: Unknown = Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
Marking this confirmed due to the upstream report. Thanks for filing the bug, and posting the patch! ** Changed in: openssh (Ubuntu) Importance: Undecided = Medium ** Changed in: openssh (Ubuntu) Status: New = Confirmed ** Also affects: openssh (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=671075 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
This is an upstream bug in OpenSSH 5.9p1, that has also been reported for Debian as bug 671075. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=671075 This is currently broken because a special case in the packet_connection_af function returns a boolean value instead of an address family. I have just tested that the patch attached by Nicolas to the debian package fixes the problem. ** Bug watch added: Debian Bug tracker #671075 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=671075 ** Patch added: fix_ip_tos.patch https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+attachment/3402582/+files/fix_ip_tos.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
The attachment fix_ip_tos.patch of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu- reviewers team please also unsubscribe the team from this bug report. [This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1067522 Title: openssh-client / ssh does not set IP Type-of-service field To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1067522/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1067522] Re: openssh-client / ssh does not set IP Type-of-service field
If I build openssh from source and try it, the ToS bit is set appropriately: 2012-10-16 17:32:16.173736 IP (tos 0x10, ttl 64, id 38386, offset 0, flags [DF], proto TCP (6), length 52) 1.1.1.1.36327 2.2.2.2.22: Flags [.], cksum 0x2dcd (incorrect - 0x8a18), seq 3101, ack 3736, win 183, options [nop,nop,TS val 1670729064 ecr 2311548502], length 0 Furthermore, the manpage included with Ubuntu for ssh states: The default is “lowdelay” for interactive sessions and “throughput” for non-interactive sessions. ** Description changed: - The openssh-client bundled with Ubuntu 12.04 fails to set the IP Type of Service field to minimize delay (0x04) for interactive SSH sessions. Just about any other flavor of Linux/UNIX does this without any trouble. Even if I attempt to force the setting in /etc/ssh/sshd_config: - IPQoS lowdelay + The openssh-client bundled with Ubuntu 12.04 fails to set the IP Type of Service field to minimize delay (0x10) for interactive SSH sessions. Just about any other flavor of Linux/UNIX does this without any trouble. Even if I attempt to force the setting in /etc/ssh/sshd_config: + IPQoS lowdelay The outgoing SSH packets do not have the bit set. See this example with tcpdump output: [steve.polyack@galvatron ~]$ sudo tcpdump -i eth0 -vvv - -n 'host 2.2.2.2 dst port 22' tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes ^Z [1]+ Stopped sudo tcpdump -i eth0 -vvv - -n 'host 2.2.2.2 dst port 22' [steve.polyack@galvatron ~]$ bg [1]+ sudo tcpdump -i eth0 -vvv - -n 'host 2.2.2.2 dst port 22' [steve.polyack@galvatron ~]$ ssh 2.2.2.2 2012-10-16 17:20:39.113321 IP (tos 0x0, ttl 64, id 58664, offset 0, flags [DF], proto TCP (6), length 60) - 1.1.1.1.36127 2.2.2.2.22: Flags [S], cksum 0x2dd5 (incorrect - 0x200d), seq 3930407303, win 14600, options [mss 1460,sackOK,TS val 1670554799 ecr 0,nop,wscale 7], length 0 + 1.1.1.1.36127 2.2.2.2.22: Flags [S], cksum 0x2dd5 (incorrect - 0x200d), seq 3930407303, win 14600, options [mss 1460,sackOK,TS val 1670554799 ecr 0,nop,wscale 7], length 0 2012-10-16 17:20:39.298676 IP (tos 0x0, ttl 64, id 58665, offset 0, flags [DF], proto TCP (6), length 52) - 1.1.1.1.36127 2.2.2.2.22: Flags [.], cksum 0x2dcd (incorrect - 0x5cd6), seq 3930407304, ack 1359170341, win 115, options [nop,nop,TS val 1670554846 ecr 2310866035], length 0 + 1.1.1.1.36127 2.2.2.2.22: Flags [.], cksum 0x2dcd (incorrect - 0x5cd6), seq 3930407304, ack 1359170341, win 115, options [nop,nop,TS val 1670554846 ecr 2310866035], length 0 2012-10-16 17:20:39.329979 IP (tos 0x0, ttl 64, id 58666, offset 0, flags [DF], proto TCP (6), length 52) - 1.1.1.1.36127 2.2.2.2.22: Flags [.], cksum 0x2dcd (incorrect - 0x5c8c), seq 0, ack 40, win 115, options [nop,nop,TS val 1670554853 ecr 2310866063], length 0 + 1.1.1.1.36127 2.2.2.2.22: Flags [.], cksum 0x2dcd (incorrect - 0x5c8c), seq 0, ack 40, win 115, options [nop,nop,TS val 1670554853 ecr 2310866063], length 0 2012-10-16 17:20:39.330082 IP (tos 0x0, ttl 64, id 58667, offset 0, flags [DF], proto TCP (6), length 91) - 1.1.1.1.36127 2.2.2.2.22: Flags [P.], cksum 0x2df4 (incorrect - 0x9e6b), seq 0:39, ack 40, win 115, options [nop,nop,TS val 1670554853 ecr 2310866063], length 39 + 1.1.1.1.36127 2.2.2.2.22: Flags [P.], cksum 0x2df4 (incorrect - 0x9e6b), seq 0:39, ack 40, win 115, options [nop,nop,TS val 1670554853 ecr 2310866063], length 39 2012-10-16 17:20:39.759001 IP (tos 0x0, ttl 64, id 58668, offset 0, flags [DF], proto TCP (6), length 1324) - 1.1.1.1.36127 2.2.2.2.22: Flags [P.], cksum 0x32c5 (incorrect - 0x916a), seq 39:1311, ack 776, win 126, options [nop,nop,TS val 1670554961 ecr 2310866492], length 1272 + 1.1.1.1.36127 2.2.2.2.22: Flags [P.], cksum 0x32c5 (incorrect - 0x916a), seq 39:1311, ack 776, win 126, options [nop,nop,TS val 1670554961 ecr 2310866492], length 1272 - - The problem persists even after login, once the SSH session is fully interactive: + The problem persists even after login, once the SSH session is fully + interactive: 2012-10-16 17:20:49.626239 IP (tos 0x0, ttl 64, id 58694, offset 0, flags [DF], proto TCP (6), length 116) - 1.1.1.1.36127 2.2.2.2.22: Flags [P.], cksum 0x2e0d (incorrect - 0xb06e), seq 3479:3543, ack 5344, win 226, options [nop,nop,TS val 1670557427 ecr 2310876270], length 64 + 1.1.1.1.36127 2.2.2.2.22: Flags [P.], cksum 0x2e0d (incorrect - 0xb06e), seq 3479:3543, ack 5344, win 226, options [nop,nop,TS val 1670557427 ecr 2310876270], length 64 - - This causes problems in environements where QoS is used and IP ToS is obeyed. + This causes problems in environements where QoS is used and IP ToS is + obeyed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: openssh-client 1:5.9p1-5ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21 Uname: Linux
