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-17186 Lustre <p>Please update the last places in the code where gethostbyaddr() and gethostbyname() are used, especially in the Kerberos user space utility with getaddrinfo() and getnameinfo().</p> <p>That will make Lustre compatible with the /etc/gai.conf file that gives control over how these calls return info, especially ordering of IP address when a DNS host has multiple IP addresses.</p> <p>(see man gai.conf)<br/>  </p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>CONFORMING TO POSIX.1-2001  specifies  gethostbyname(), gethostbyaddr(), sethostent(), endhostent(), gethostent(), and h_errno; gethostbyname(), gethostbyaddr(), and h_errno are marked obsolescent in that standard. POSIX.1-2008 removes the specifications of gethostbyname(), gethostbyaddr(), and h_errno, recommending the use of getaddrinfo(3) and getnameinfo(3) instead. </pre> </div></div> <p>This is simple enough that this ticket could be handled by somebody which is not a Kerberos expert.</p> LU-17186

Replace deprecated gethostby*() calls with get*info() to support resolv ordering

Improvement Minor Resolved Fixed Jian Yu Jian Yu Wed, 11 Oct 2023 20:20:28 +0000 Mon, 8 Jan 2024 21:13:52 +0000 Wed, 3 Jan 2024 14:23:05 +0000 Lustre 2.16.0 0 4 <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/52632" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/52632</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-17186" title="Replace deprecated gethostby*() calls with get*info() to support resolv ordering" class="issue-link" data-issue-key="LU-17186"><del>LU-17186</del></a> utils: replace gethostby*() with getaddrinfo()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 2d293e9b72eecd41607834bc5bff31ad24814112</p> <p>Jian, does the <tt>getaddrinfo()</tt> interface allow returning multiple addresses for the same hostname, and do the tools handle this? It would be useful for <a href="https://jira.whamcloud.com/browse/LU-16738" title="Improve mount.lustre with many MGS NIDs" class="issue-link" data-issue-key="LU-16738">LU-16738</a> if a single MGS hostname could resolve to multiple NIDs with round-robin DNS, and would allow shortening the mount command line. </p> <p>Yes, <a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=adilger" class="user-hover" rel="adilger">adilger</a>.<br/> The getaddrinfo() function allocates and initializes a linked list of <em>addrinfo</em> structures, one for each network address that matches <em>node</em> and <em>service</em>, subject to any restrictions imposed by <em>hints</em>, and returns a pointer to the start of the list in <em>res</em>. The items in the linked list are linked by the <em>ai_next</em> field.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> <span class="code-object">int</span> getaddrinfo(<span class="code-keyword">const</span> <span class="code-object">char</span> *node, <span class="code-keyword">const</span> <span class="code-object">char</span> *service, <span class="code-keyword">const</span> struct addrinfo *hints, struct addrinfo **res); struct addrinfo { <span class="code-object">int</span> ai_flags; <span class="code-object">int</span> ai_family; <span class="code-object">int</span> ai_socktype; <span class="code-object">int</span> ai_protocol; socklen_t ai_addrlen; struct sockaddr *ai_addr; <span class="code-object">char</span> *ai_canonname; struct addrinfo *ai_next; }; </pre> </div></div> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/52632/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/52632/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-17186" title="Replace deprecated gethostby*() calls with get*info() to support resolv ordering" class="issue-link" data-issue-key="LU-17186"><del>LU-17186</del></a> utils: replace gethostby*() with get*info()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: de82fd88a7e9300f9558f1d30fe1ed744be11aa2</p> <p>Landed for 2.16</p> Related LU-16738 Development Rank 1|i03y53: Rank (Obsolete) 9223372036854775807 Severity