[libvirt] [PATCHv4 6/6] Enable the virDomain{S, G}etInterfaceParameters in virsh
Hu Tao
hutao at cn.fujitsu.com
Thu Dec 29 07:33:21 UTC 2011
Add a new command domiftune to get/set interface parameters.
* tools/virsh.c: implement the new command
* tools/virsh.pod: documentation of the new command
---
tools/virsh.c | 198 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
tools/virsh.pod | 21 ++++++
2 files changed, 219 insertions(+), 0 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index b2d3968..e089f7b 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -427,6 +427,8 @@ static void *_vshCalloc(vshControl *ctl, size_t nmemb, size_t sz, const char *fi
static char *_vshStrdup(vshControl *ctl, const char *s, const char *filename, int line);
#define vshStrdup(_ctl, _s) _vshStrdup(_ctl, _s, __FILE__, __LINE__)
+static int parseRateStr(const char *rateStr, virNetDevBandwidthRatePtr rate);
+
static void *
_vshMalloc(vshControl *ctl, size_t size, const char *filename, int line)
{
@@ -1601,6 +1603,201 @@ cleanup:
return ret;
}
+/* "domiftune" command
+ */
+static const vshCmdInfo info_domiftune[] = {
+ {"help", N_("get/set parameters of a virtual interface")},
+ {"desc", N_("Get/set parameters of a domain's virtual interface.")},
+ {NULL,NULL}
+};
+
+static const vshCmdOptDef opts_domiftune[] = {
+ {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
+ {"interface", VSH_OT_DATA, VSH_OFLAG_REQ, N_("interface device")},
+ {"inbound", VSH_OT_DATA, VSH_OFLAG_NONE, N_("control domain's incoming traffics")},
+ {"outbound", VSH_OT_DATA, VSH_OFLAG_NONE, N_("control domain's outgoing traffics")},
+ {"config", VSH_OT_BOOL, VSH_OFLAG_NONE, N_("affect next boot")},
+ {"live", VSH_OT_BOOL, VSH_OFLAG_NONE, N_("affect running domain")},
+ {"current", VSH_OT_BOOL, VSH_OFLAG_NONE, N_("affect current domain")},
+ {NULL, 0, 0, NULL}
+};
+
+static bool
+cmdDomIftune(vshControl *ctl, const vshCmd *cmd)
+{
+ virDomainPtr dom;
+ const char *name = NULL, *device = NULL,
+ *inboundStr = NULL, *outboundStr = NULL;
+ unsigned int flags = 0;
+ int nparams = 0;
+ virTypedParameterPtr params = NULL;
+ bool ret = false;
+ int current = vshCommandOptBool(cmd, "current");
+ int config = vshCommandOptBool(cmd, "config");
+ int live = vshCommandOptBool(cmd, "live");
+ virNetDevBandwidthRate inbound, outbound;
+ int i;
+
+ if (current) {
+ if (live || config) {
+ vshError(ctl, "%s", _("--current must be specified exclusively"));
+ return false;
+ }
+ flags = VIR_DOMAIN_AFFECT_CURRENT;
+ } else {
+ if (config)
+ flags |= VIR_DOMAIN_AFFECT_CONFIG;
+ if (live)
+ flags |= VIR_DOMAIN_AFFECT_LIVE;
+ }
+
+ if (!vshConnectionUsability(ctl, ctl->conn))
+ return false;
+
+ if (!(dom = vshCommandOptDomain(ctl, cmd, &name)))
+ return false;
+
+ if (vshCommandOptString(cmd, "interface", &device) <= 0) {
+ virDomainFree(dom);
+ return false;
+ }
+
+ if (vshCommandOptString(cmd, "inbound", &inboundStr) < 0 ||
+ vshCommandOptString(cmd, "outbound", &outboundStr) < 0) {
+ vshError(ctl, "missing argument");
+ goto cleanup;
+ }
+
+ memset(&inbound, 0, sizeof(inbound));
+ memset(&outbound, 0, sizeof(outbound));
+
+ if (inboundStr) {
+ if (parseRateStr(inboundStr, &inbound) < 0) {
+ vshError(ctl, _("inbound format is incorrect"));
+ goto cleanup;
+ }
+ if (inbound.average == 0) {
+ vshError(ctl, _("inbound average is mandatory"));
+ goto cleanup;
+ }
+ nparams++; /* average */
+ if (inbound.peak) nparams++;
+ if (inbound.burst) nparams++;
+ }
+ if (outboundStr) {
+ if (parseRateStr(outboundStr, &outbound) < 0) {
+ vshError(ctl, _("outbound format is incorrect"));
+ goto cleanup;
+ }
+ if (outbound.average == 0) {
+ vshError(ctl, _("outbound average is mandatory"));
+ goto cleanup;
+ }
+ nparams++; /* average */
+ if (outbound.peak) nparams++;
+ if (outbound.burst) nparams++;
+ }
+
+ if (nparams == 0) {
+ /* get the number of interface parameters */
+ if (virDomainGetInterfaceParameters(dom, device, NULL, &nparams, flags) != 0) {
+ vshError(ctl, "%s",
+ _("Unable to get number of interface parameters"));
+ goto cleanup;
+ }
+
+ if (nparams == 0) {
+ /* nothing to output */
+ ret = true;
+ goto cleanup;
+ }
+
+ /* get all interface parameters */
+ params = vshCalloc(ctl, nparams, sizeof(*params));
+ if (!params) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ if (virDomainGetInterfaceParameters(dom, device, params, &nparams, flags) != 0) {
+ vshError(ctl, "%s", _("Unable to get interface parameters"));
+ goto cleanup;
+ }
+
+ for (i = 0; i < nparams; i++) {
+ char *str = vshGetTypedParamValue(ctl, ¶ms[i]);
+ vshPrint(ctl, "%-15s: %s\n", params[i].field, str);
+ VIR_FREE(str);
+ }
+ } else {
+ /* set the interface parameters */
+ params = vshCalloc(ctl, nparams, sizeof(*params));
+ if (!params) {
+ virReportOOMError();
+ goto cleanup;
+ }
+
+ for (i = 0; i < nparams; i++)
+ params[i].type = VIR_TYPED_PARAM_UINT;
+
+ i = 0;
+ if (inbound.average && i < nparams) {
+ if (!virStrcpy(params[i].field, VIR_DOMAIN_BANDWIDTH_IN_AVERAGE,
+ sizeof(params[i].field)))
+ goto cleanup;
+ params[i].value.ui = inbound.average;
+ i++;
+ }
+ if (inbound.peak && i < nparams) {
+ if (!virStrcpy(params[i].field, VIR_DOMAIN_BANDWIDTH_IN_PEAK,
+ sizeof(params[i].field)))
+ goto cleanup;
+ params[i].value.ui = inbound.peak;
+ i++;
+ }
+ if (inbound.burst && i < nparams) {
+ if (!virStrcpy(params[i].field, VIR_DOMAIN_BANDWIDTH_IN_BURST,
+ sizeof(params[i].field)))
+ goto cleanup;
+ params[i].value.ui = inbound.burst;
+ i++;
+ }
+ if (outbound.average && i < nparams) {
+ if (!virStrcpy(params[i].field, VIR_DOMAIN_BANDWIDTH_OUT_AVERAGE,
+ sizeof(params[i].field)))
+ goto cleanup;
+ params[i].value.ui = outbound.average;
+ i++;
+ }
+ if (outbound.peak && i < nparams) {
+ if (!virStrcpy(params[i].field, VIR_DOMAIN_BANDWIDTH_OUT_PEAK,
+ sizeof(params[i].field)))
+ goto cleanup;
+ params[i].value.ui = outbound.peak;
+ i++;
+ }
+ if (outbound.burst && i < nparams) {
+ if (!virStrcpy(params[i].field, VIR_DOMAIN_BANDWIDTH_OUT_BURST,
+ sizeof(params[i].field)))
+ goto cleanup;
+ params[i].value.ui = outbound.burst;
+ i++;
+ }
+
+ if (virDomainSetInterfaceParameters(dom, device, params, nparams, flags) != 0) {
+ vshError(ctl, "%s", _("Unable to set interface parameters"));
+ goto cleanup;
+ }
+ }
+
+ ret = true;
+
+cleanup:
+ virTypedParameterArrayClear(params, nparams);
+ VIR_FREE(params);
+ virDomainFree(dom);
+ return ret;
+}
+
/*
* "dommemstats" command
*/
@@ -15589,6 +15786,7 @@ static const vshCmdDef domManagementCmds[] = {
info_detach_interface, 0},
{"domid", cmdDomid, opts_domid, info_domid, 0},
{"domif-setlink", cmdDomIfSetLink, opts_domif_setlink, info_domif_setlink, 0},
+ {"domiftune", cmdDomIftune, opts_domiftune, info_domiftune, 0},
{"domjobabort", cmdDomjobabort, opts_domjobabort, info_domjobabort, 0},
{"domjobinfo", cmdDomjobinfo, opts_domjobinfo, info_domjobinfo, 0},
{"domname", cmdDomname, opts_domname, info_domname, 0},
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 4e29421..138f886 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -480,6 +480,27 @@ configuration of the domain is modified.
Query link state of the domain's virtual interface. If --persistent
is specified, query the persistent configuration.
+=item B<domiftune> I<domain> I<interface-device>
+[[I<--config>] [I<--live>] | [I<--current>]]
+[I<--inbound average,peak,burst>]
+[I<--outbound average,peak,burst>]
+
+Set or query the domain's network interface's bandwidth parameters.
+I<interface-device> can be the interface's target name (<target dev='name'/>),
+or the MAC address.
+
+If no I<--inbound> or I<--outbound> is specified, this command will
+query and show the bandwidth settings. Otherwise, it will set the
+inbound or outbound bandwidth. I<average,peak,burst> is the same as
+in command I<attach-interface>.
+
+If I<--live> is specified, affect a running guest.
+If I<--config> is specified, affect the next boot of a persistent guest.
+If I<--current> is specified, affect the current guest state.
+Both I<--live> and I<--current> flags may be given, but I<--current> is
+exclusive. If no flag is specified, behavior is different depending
+on hypervisor.
+
=item B<dommemstat> I<domain>
Get memory stats for a running domain.
--
1.7.4.4
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