<div dir="ltr">Ha,thanks for your link, it's absolutely much clearer and more correct here, and how do you think of this util function itself?<br><br><div class="gmail_quote"><div dir="ltr">Kiall Mac Innes <<a href="mailto:kiall@macinnes.ie">kiall@macinnes.ie</a>>于2016年10月18日周二 上午12:03写道：<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000" class="gmail_msg">
<p class="gmail_msg">We tend to try stick with the various TEST-NET CIDRs etc as well
in Designate, and document them here:</p>
<p class="gmail_msg"><a class="m_5887288936083925983moz-txt-link-freetext gmail_msg" href="http://docs.openstack.org/developer/designate/developer-guidelines.html#example-dns-names-and-ip-space" target="_blank">http://docs.openstack.org/developer/designate/developer-guidelines.html#example-dns-names-and-ip-space</a></p>
Thanks,<br class="gmail_msg">
Kiall</div><div bgcolor="#FFFFFF" text="#000000" class="gmail_msg"><br class="gmail_msg">
<br class="gmail_msg">
<div class="m_5887288936083925983moz-cite-prefix gmail_msg">On 17/10/16 10:56, TommyLike Hu wrote:<br class="gmail_msg">
</div>
</div><div bgcolor="#FFFFFF" text="#000000" class="gmail_msg"><blockquote type="cite" class="gmail_msg">
<div dir="ltr" class="gmail_msg">
<div dir="ltr" class="gmail_msg">
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">When I handle some stuff related to Manila
recently, I found a case which may be suitable for Oslo,
Anyhow I put it in the maillist so it can be discussed
before I put it in action.</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">In testcase, we need a function(maybe 2) to
generate random ip address (or network), also they should
in the range of [1](ipv4 documentation range) or [2](ipv6
documentation range), this is the draft code for ipv4:</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">import six</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">import random</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">def rand_ipv4(network=False):</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> """This uses the TEST-NET-3 range of reserved
IP addresses."""</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> test_net_3 = '203.0.113.'</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> if network:</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> host_length = random.randint(0, 8)</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> address_segment = random.randint(0, 8 -
host_length)</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> address_segment <<= host_length</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> address = test_net_3 +
six.text_type(address_segment)</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> address = '/'.join((address,</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> six.text_type(32 -
host_length)))</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> else:</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> address = test_net_3 +
six.text_type(random.randint(0, 255))</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"> return address</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">The primary use case here is writing testcases, I
am not sure whether it is suitable here, or maybe I
misunderstood the intention of TEST-NET-3, please leave
any comment you like.</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">[1] <a href="https://tools.ietf.org/html/rfc5737" class="gmail_msg" target="_blank">https://tools.ietf.org/html/rfc5737</a></font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif">[2] <a href="https://tools.ietf.org/html/rfc5156" class="gmail_msg" target="_blank">https://tools.ietf.org/html/rfc5156</a></font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
<div class="gmail_msg"><font class="gmail_msg" face="georgia,
serif"><br class="gmail_msg">
</font></div>
</div>
</div>
<br class="gmail_msg">
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<br class="gmail_msg">
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