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qemu: Allow empty script path to <interface/>
Before 9c17d665fdc5f (v1.3.2 - I know, right?) it was possible to have the following interface configuration: <interface type='ethernet'/> <script path=''/> </interface> This resulted in -netdev tap,script=,.. Fortunately, qemu helped us to get away with this as it just ignored the empty script path. However, after the commit mentioned above it's libvirtd who is executing the script. Unfortunately without special case-ing empty script path. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
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@ -145,6 +145,16 @@
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libxl: fix dom0 autoballooning with Xen 4.8
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</summary>
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</change>
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<change>
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<summary>
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qemu: Allow empty script path to <interface/>
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</summary>
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<description>
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Historically, this was always allowed. Unfortunately, due to some
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rework done for 1.3.2 release a bug was dragged in which suddenly
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stop allowing domain with such configuration to start.
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</description>
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</change>
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</section>
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</release>
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<release version="v3.0.0" date="2017-01-17">
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@ -2615,6 +2615,10 @@ virNetDevRunEthernetScript(const char *ifname, const char *script)
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virCommandPtr cmd;
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int ret;
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/* Not a bug! Previously we did accept script="" as a NO-OP. */
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if (STREQ(script, ""))
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return 0;
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cmd = virCommandNew(script);
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virCommandAddArgFormat(cmd, "%s", ifname);
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virCommandClearCaps(cmd);
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