https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-11894 Lustre <p>Asymmetrical routes can be an issue when debugging network, and allowing them also opens the door to attacks where hostile clients inject data to the servers.</p> <p>This is explained for instance in this presentation from Dave Holland from Sanger:<br/> <a href="https://youtu.be/Yf29eyR_2AU?t=1359" class="external-link" target="_blank" rel="nofollow noopener">https://youtu.be/Yf29eyR_2AU?t=1359</a></p> <p>The idea is to check if the LNet messages received from a remote peer are coming through a router that would normally be used by this node to reach the remote peer. If it is not the case, then it means we are dealing with asymmetrical routing, and we want to drop such messages.</p> <p>The check for asymmetrical route messages could be switched on/off on a per-node basis.</p> <p>I will propose a patch to implement this idea.</p> LU-11894

Check for asymmetrical route messages in LNet

Bug Minor Resolved Fixed Sebastien Buisson Sebastien Buisson lnet patch sec Mon, 28 Jan 2019 16:53:28 +0000 Mon, 1 Apr 2019 14:08:48 +0000 Sun, 3 Mar 2019 14:47:53 +0000 Lustre 2.12.0 Lustre 2.13.0 Lustre 2.12.1 0 3 <p>Sebastien Buisson (sbuisson@ddn.com) uploaded a new patch: <a href="https://review.whamcloud.com/34119" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34119</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11894" title="Check for asymmetrical route messages in LNet" class="issue-link" data-issue-key="LU-11894"><del>LU-11894</del></a> lnet: check for asymmetrical route messages<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 732dfb3b18b2b0830a66990e0e42ea6c97b86676</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34119/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34119/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11894" title="Check for asymmetrical route messages in LNet" class="issue-link" data-issue-key="LU-11894"><del>LU-11894</del></a> lnet: check for asymmetrical route messages<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 4932febc121349d855ac9934c538ce688c140afa</p> <p>Landed for 2.13</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/34457" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34457</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11894" title="Check for asymmetrical route messages in LNet" class="issue-link" data-issue-key="LU-11894"><del>LU-11894</del></a> lnet: check for asymmetrical route messages<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: c08419f2eca52862c4ae36c0b43c328f5232c56b</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34457/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34457/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11894" title="Check for asymmetrical route messages in LNet" class="issue-link" data-issue-key="LU-11894"><del>LU-11894</del></a> lnet: check for asymmetrical route messages<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: f95ab9a42241a2a7319f6fa77e570f5526771afa</p> Development Rank 1|i00aef: Rank (Obsolete) 9223372036854775807 Severity