[libvirt] [PATCH 8/9] Add implementation of virDomainLxcOpenNamespace to LXC driver
From: "Daniel P. Berrange" <berrange(a)redhat.com>
The virDomainLxcOpenNamespace method needs to open every file
in /proc/$INITPID/ns and return the open file descriptor to the
client application.
Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com>
---
src/lxc/lxc_driver.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 025c35f..185b08f 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -63,6 +63,7 @@
#include "virnetdev.h"
#include "virnetdevtap.h"
#include "virnodesuspend.h"
+#include "virprocess.h"
#include "virtime.h"
#include "virtypedparam.h"
#include "viruri.h"
@@ -4467,6 +4468,53 @@ static int lxcDomainDetachDevice(virDomainPtr dom,
}
+static int lxcDomainOpenNamespace(virDomainPtr dom,
+ int **fdlist,
+ unsigned int flags)
+{
+ virLXCDriverPtr driver = dom->conn->privateData;
+ virDomainObjPtr vm;
+ virLXCDomainObjPrivatePtr priv;
+ int ret = -1;
+ size_t nfds = 0;
+
+ *fdlist = NULL;
+ virCheckFlags(0, -1);
+
+ lxcDriverLock(driver);
+ vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+ lxcDriverUnlock(driver);
+ if (!vm) {
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
+ virUUIDFormat(dom->uuid, uuidstr);
+ virReportError(VIR_ERR_NO_DOMAIN,
+ _("no domain with matching uuid '%s'"),
uuidstr);
+ goto cleanup;
+ }
+ priv = vm->privateData;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("Domain is not running"));
+ goto cleanup;
+ }
+
+ if (!priv->initpid) {
+ virReportError(VIR_ERR_OPERATION_INVALID, "%s",
+ _("Init pid is not yet available"));
+ goto cleanup;
+ }
+
+ if (virProcessGetNamespaces(priv->initpid, &nfds, fdlist) < 0)
+ goto cleanup;
+
+ ret = nfds;
+cleanup:
+ virDomainObjUnlock(vm);
+ return ret;
+}
+
+
/* Function Tables */
static virDriver lxcDriver = {
.no = VIR_DRV_LXC,
--
1.7.11.7