[PATCH] RFC: Support network interface downscript

https://gitlab.com/libvirt/libvirt/-/issues/13 Add support for downscript: <interface type='ethernet'> <mac address='00:11:22:33:44:55'/> <script path='/etc/qemu-ifup'/> <downscript path='/path/to/my/downscript'/> </interface> But -net ...,script=/etc/qemu-ifup has some limitation: https://github.com/qemu/qemu/blob/035b448b84f3557206abc44d786c5d3db2638f7... Maybe virNetDevRunEthernetScript is another choice. Signed-off-by: Chen Hanxiao <chen_han_xiao(a)126.com&gt; --- src/conf/domain_conf.c | 7 +++++++ src/conf/domain_conf.h | 1 + src/qemu/qemu_extdevice.c | 2 ++ 3 files changed, 10 insertions(+) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index c201fc9..5cb39a3 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2520,6 +2520,7 @@ virDomainNetDefClear(virDomainNetDefPtr def) VIR_FREE(def->teaming.persistent); 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); @@ -11977,6 +11978,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, g_autofree char *ifname_guest = NULL; g_autofree char *ifname_guest_actual = NULL; g_autofree char *script = NULL; + g_autofree char *downscript = NULL; g_autofree char *address = NULL; g_autofree char *port = NULL; g_autofree char *localaddr = NULL; @@ -12149,6 +12151,9 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, } else if (!script && virXMLNodeNameEqual(cur, "script")) { script = virXMLPropString(cur, "path"); + } else if (!downscript && + virXMLNodeNameEqual(cur, "downscript")) { + downscript = virXMLPropString(cur, "path"); } else if (!domain_name && virXMLNodeNameEqual(cur, "backenddomain")) { domain_name = virXMLPropString(cur, "name"); @@ -12482,6 +12487,8 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, if (script != NULL) def->script = g_steal_pointer(&script); + if (downscript != NULL) + def->downscript = g_steal_pointer(&downscript); if (domain_name != NULL) def->domain_name = g_steal_pointer(&domain_name); if (ifname != NULL) diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index ddc75d8..e152c59 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1055,6 +1055,7 @@ 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'/>) */ int managed_tap; /* enum virTristateBool - ABSENT == YES */ diff --git a/src/qemu/qemu_extdevice.c b/src/qemu/qemu_extdevice.c index 2096272..f8e440a 100644 --- a/src/qemu/qemu_extdevice.c +++ b/src/qemu/qemu_extdevice.c @@ -234,6 +234,8 @@ qemuExtDevicesStop(virQEMUDriverPtr driver, if (slirp) qemuSlirpStop(slirp, vm, driver, net); + if (net->downscript) + virNetDevRunEthernetScript(net->ifname, net->downscript); } for (i = 0; i < def->nfss; i++) { -- 1.8.3.1