[libvirt] [PATCH 2/2] qemu: adding domainGetHostname support for QEMU.
Peter Krempa
pkrempa at redhat.com
Sat Aug 18 12:18:17 UTC 2018
On Fri, Aug 17, 2018 at 23:25:19 -0300, Julio Faracco wrote:
> This commit add the support to use the function qemuAgentGetHostname() for
> obtain the domain hostname using QEMU-GA command.
>
> Signed-off-by: Julio Faracco <jcfaracco at gmail.com>
> ---
> src/qemu/qemu_driver.c | 41 +++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 41 insertions(+)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index d4a2379e48..9a6614fbc2 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -19309,6 +19309,46 @@ qemuConnectGetCPUModelNames(virConnectPtr conn,
> return virCPUGetModels(arch, models);
> }
>
> +static char *
> +qemuDomainGetHostname(virDomainPtr dom,
> + unsigned int flags)
> +{
> + int rv = -1;
> + virQEMUDriverPtr driver = dom->conn->privateData;
> + virDomainObjPtr vm = NULL;
> + qemuAgentPtr agent;
> + char *hostname = NULL;
> +
> + virCheckFlags(0, hostname);
Please return NULL directly.
> +
> + if (!(vm = qemuDomObjFromDomain(dom)))
> + return NULL;
> +
> + if (virDomainGetTimeEnsureACL(dom->conn, vm->def) < 0)
ACL checking functions are per-API, so this should use virDomainGetHostnameACL.
I presume it's a copy-paste error.
This is the wrong ACL checking function.
> + goto cleanup;
> +
> + if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_AGENT_JOB_QUERY) < 0)
> + goto cleanup;
> +
> + if (virDomainObjCheckActive(vm) < 0)
> + goto endjob;
> +
> + if (!qemuDomainAgentAvailable(vm, true))
> + goto endjob;
> +
> + agent = qemuDomainObjEnterAgent(vm);
> + rv = qemuAgentGetHostname(agent, &hostname);
rv is unused. Either make sure it's used somehow or use the
'ignore_value()' wrapper instead.
> + qemuDomainObjExitAgent(vm, agent);
> +
> + endjob:
> + qemuDomainObjEndAgentJob(vm);
> +
> + cleanup:
> + virDomainObjEndAPI(&vm);
> + return hostname;
> +}
> +
> +
> static int
> qemuDomainGetTime(virDomainPtr dom,
> long long *seconds,
> @@ -21787,6 +21827,7 @@ static virHypervisorDriver qemuHypervisorDriver = {
> .connectGetCPUModelNames = qemuConnectGetCPUModelNames, /* 1.1.3 */
> .domainFSFreeze = qemuDomainFSFreeze, /* 1.2.5 */
> .domainFSThaw = qemuDomainFSThaw, /* 1.2.5 */
> + .domainGetHostname = qemuDomainGetHostname, /* 4.6.0 */
> .domainGetTime = qemuDomainGetTime, /* 1.2.5 */
> .domainSetTime = qemuDomainSetTime, /* 1.2.5 */
> .nodeGetFreePages = qemuNodeGetFreePages, /* 1.2.6 */
> --
> 2.17.1
>
> --
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