Re: [PATCH v2] qemu: Adding 'downscript' feature for QEMU network interfaces.

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V1 patch did not have the docs/formatdomain.html.in commit.

2017-05-05 11:22 GMT-03:00 Julio Faracco <jcfaracco@xxxxxxxxx>:
> This commit adds the support for 'downscript' feature:
> - For QEMU command line with the option:
>   '-net downscript=/etc/qemu-ifdown,...'.
>
> - For Domains with a network interface description:
>   '<interface type='ethernet'>
>      ...
>      <downscript path='/etc/qemu-ifdown'/>
>      ...
>   </interface>'
>
> The options 'script' and 'downscript' accept the argument 'no' to disable
> the script executions. The way that the code was implemented, the XML file
> accepts '<[down]script path='no'>' to solve this problem.
>
> This commit updates the tests and documentation too.
>
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=825939
>
> Signed-off-by: Julio Faracco <jcfaracco@xxxxxxxxx>
> ---
>  docs/formatdomain.html.in                                  |  1 +
>  docs/schemas/domaincommon.rng                              |  8 ++++++++
>  src/conf/domain_conf.c                                     | 13 +++++++++++++
>  src/conf/domain_conf.h                                     |  1 +
>  src/qemu/qemu_parse_command.c                              |  4 ++++
>  tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.args    |  2 +-
>  tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.xml     |  1 +
>  tests/qemuargv2xmldata/qemuargv2xml-net-eth.args           |  2 +-
>  tests/qemuargv2xmldata/qemuargv2xml-net-eth.xml            |  1 +
>  tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml     |  1 +
>  tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml            |  1 +
>  tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth-ifname.xml |  1 +
>  tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth.xml        |  1 +
>  13 files changed, 35 insertions(+), 2 deletions(-)
>
> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> index 8c884f4..89fe86d 100644
> --- a/docs/formatdomain.html.in
> +++ b/docs/formatdomain.html.in
> @@ -4663,6 +4663,7 @@
>    &lt;interface type='ethernet'&gt;
>      &lt;target dev='vnet7'/&gt;
>      &lt;script path='/etc/qemu-ifup-mynet'/&gt;
> +    &lt;downscript path='/etc/qemu-ifdown-mynet'/&gt;
>    &lt;/interface&gt;
>  &lt;/devices&gt;
>  ...</pre>
> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
> index 281309e..2f88dda 100644
> --- a/docs/schemas/domaincommon.rng
> +++ b/docs/schemas/domaincommon.rng
> @@ -2609,6 +2609,14 @@
>          </element>
>        </optional>
>        <optional>
> +        <element name="downscript">
> +          <attribute name="path">
> +            <ref name="filePath"/>
> +          </attribute>
> +          <empty/>
> +        </element>
> +      </optional>
> +      <optional>
>          <element name="backenddomain">
>            <attribute name="name">
>              <ref name="domainName"/>
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 0ff216e..32d5720 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -1935,6 +1935,7 @@ virDomainNetDefClear(virDomainNetDefPtr def)
>      VIR_FREE(def->backend.vhost);
>      VIR_FREE(def->virtPortProfile);
>      VIR_FREE(def->script);
> +    VIR_FREE(def->downscript);
>      VIR_FREE(def->domain_name);
>      VIR_FREE(def->ifname);
>      VIR_FREE(def->ifname_guest);
> @@ -9589,6 +9590,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
>      char *ifname_guest = NULL;
>      char *ifname_guest_actual = NULL;
>      char *script = NULL;
> +    char *downscript = NULL;
>      char *address = NULL;
>      char *port = NULL;
>      char *localaddr = NULL;
> @@ -9761,6 +9763,9 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
>              } else if (!script &&
>                         xmlStrEqual(cur->name, BAD_CAST "script")) {
>                  script = virXMLPropString(cur, "path");
> +            } else if (!downscript &&
> +                       xmlStrEqual(cur->name, BAD_CAST "downscript")) {
> +                downscript = virXMLPropString(cur, "path");
>              } else if (!domain_name &&
>                         xmlStrEqual(cur->name, BAD_CAST "backenddomain")) {
>                  domain_name = virXMLPropString(cur, "name");
> @@ -10074,6 +10079,10 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
>          def->script = script;
>          script = NULL;
>      }
> +    if (downscript != NULL) {
> +        def->downscript = downscript;
> +        downscript = NULL;
> +    }
>      if (domain_name != NULL) {
>          def->domain_name = domain_name;
>          domain_name = NULL;
> @@ -10356,6 +10365,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
>      VIR_FREE(dev);
>      virDomainActualNetDefFree(actual);
>      VIR_FREE(script);
> +    VIR_FREE(downscript);
>      VIR_FREE(bridge);
>      VIR_FREE(model);
>      VIR_FREE(backend);
> @@ -22158,6 +22168,9 @@ virDomainNetDefFormat(virBufferPtr buf,
>
>      virBufferEscapeString(buf, "<script path='%s'/>\n",
>                            def->script);
> +    if (def->downscript)
> +        virBufferEscapeString(buf, "<downscript path='%s'/>\n",
> +                              def->downscript);
>      virBufferEscapeString(buf, "<backenddomain name='%s'/>\n", def->domain_name);
>
>      if (def->ifname &&
> diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
> index 09fb7aa..9deca76 100644
> --- a/src/conf/domain_conf.h
> +++ b/src/conf/domain_conf.h
> @@ -1024,6 +1024,7 @@ struct _virDomainNetDef {
>          unsigned long sndbuf;
>      } tune;
>      char *script;
> +    char *downscript;
>      char *domain_name; /* backend domain name */
>      char *ifname; /* interface name on the host (<target dev='x'/>) */
>      virNetDevIPInfo hostIP;
> diff --git a/src/qemu/qemu_parse_command.c b/src/qemu/qemu_parse_command.c
> index af9063c..d773917 100644
> --- a/src/qemu/qemu_parse_command.c
> +++ b/src/qemu/qemu_parse_command.c
> @@ -1060,6 +1060,10 @@ qemuParseCommandLineNet(virDomainXMLOptionPtr xmlopt,
>              def->script = values[i];
>              values[i] = NULL;
>          } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
> +                   STREQ(keywords[i], "downscript") && STRNEQ(values[i], "")) {
> +            def->downscript = values[i];
> +            values[i] = NULL;
> +        } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
>                     STREQ(keywords[i], "ifname")) {
>              def->ifname = values[i];
>              values[i] = NULL;
> diff --git a/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.args b/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.args
> index 4d74ae4..5d7129c 100644
> --- a/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.args
> +++ b/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.args
> @@ -18,6 +18,6 @@ QEMU_AUDIO_DRV=none \
>  -usb \
>  -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=ide,bus=0,unit=0 \
>  -net nic,macaddr=00:11:22:33:44:55,vlan=0,model=rtl8139,name=net0 \
> --net tap,ifname=nic02,script=/etc/qemu-ifup,vlan=0,name=hostnet0 \
> +-net tap,ifname=nic02,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown,vlan=0,name=hostnet0 \
>  -serial none \
>  -parallel none
> diff --git a/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.xml b/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.xml
> index fa9a892..8e04efb 100644
> --- a/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.xml
> +++ b/tests/qemuargv2xmldata/qemuargv2xml-net-eth-ifname.xml
> @@ -30,6 +30,7 @@
>      <interface type='ethernet'>
>        <mac address='00:11:22:33:44:55'/>
>        <script path='/etc/qemu-ifup'/>
> +      <downscript path='/etc/qemu-ifdown'/>
>        <target dev='nic02'/>
>        <model type='rtl8139'/>
>        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
> diff --git a/tests/qemuargv2xmldata/qemuargv2xml-net-eth.args b/tests/qemuargv2xmldata/qemuargv2xml-net-eth.args
> index 89eb4c1..0e3fa21 100644
> --- a/tests/qemuargv2xmldata/qemuargv2xml-net-eth.args
> +++ b/tests/qemuargv2xmldata/qemuargv2xml-net-eth.args
> @@ -18,6 +18,6 @@ QEMU_AUDIO_DRV=none \
>  -usb \
>  -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=ide,bus=0,unit=0 \
>  -net nic,macaddr=00:11:22:33:44:55,vlan=0,model=rtl8139,name=net0 \
> --net tap,script=/etc/qemu-ifup,vlan=0,name=hostnet0 \
> +-net tap,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown,vlan=0,name=hostnet0 \
>  -serial none \
>  -parallel none
> diff --git a/tests/qemuargv2xmldata/qemuargv2xml-net-eth.xml b/tests/qemuargv2xmldata/qemuargv2xml-net-eth.xml
> index 57c4be8..d177ca8 100644
> --- a/tests/qemuargv2xmldata/qemuargv2xml-net-eth.xml
> +++ b/tests/qemuargv2xmldata/qemuargv2xml-net-eth.xml
> @@ -30,6 +30,7 @@
>      <interface type='ethernet'>
>        <mac address='00:11:22:33:44:55'/>
>        <script path='/etc/qemu-ifup'/>
> +      <downscript path='/etc/qemu-ifdown'/>
>        <model type='rtl8139'/>
>        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
>      </interface>
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml
> index dd0d752..21d8259 100644
> --- a/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-net-eth-ifname.xml
> @@ -26,6 +26,7 @@
>      <interface type='ethernet'>
>        <mac address='00:11:22:33:44:55'/>
>        <script path='/etc/qemu-ifup'/>
> +      <downscript path='/etc/qemu-ifdown'/>
>        <target dev='nic02'/>
>        <model type='rtl8139'/>
>      </interface>
> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml
> index 48acadf..9f40122 100644
> --- a/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml
> +++ b/tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml
> @@ -26,6 +26,7 @@
>      <interface type='ethernet'>
>        <mac address='00:11:22:33:44:55'/>
>        <script path='/etc/qemu-ifup'/>
> +      <downscript path='/etc/qemu-ifdown'/>
>        <model type='rtl8139'/>
>      </interface>
>      <input type='mouse' bus='ps2'/>
> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth-ifname.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth-ifname.xml
> index c36baa0..b71fd5a 100644
> --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth-ifname.xml
> +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth-ifname.xml
> @@ -30,6 +30,7 @@
>      <interface type='ethernet'>
>        <mac address='00:11:22:33:44:55'/>
>        <script path='/etc/qemu-ifup'/>
> +      <downscript path='/etc/qemu-ifdown'/>
>        <target dev='nic02'/>
>        <model type='rtl8139'/>
>        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth.xml
> index 898bda6..c55cd68 100644
> --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth.xml
> +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-net-eth.xml
> @@ -30,6 +30,7 @@
>      <interface type='ethernet'>
>        <mac address='00:11:22:33:44:55'/>
>        <script path='/etc/qemu-ifup'/>
> +      <downscript path='/etc/qemu-ifdown'/>
>        <model type='rtl8139'/>
>        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
>      </interface>
> --
> 2.7.4
>

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