[libvirt] [PATCH] chown kernel/initrd before spawning qemu
If we're running qemu unprivileged, we need to chown any supplied kernel
or initrd before spawning it.
* src/qemu_driver.c: rename qemuDomainSetDiskOwnership() to
qemuDomainSetFileOwnership(), pass it a path string instead of a disk
definition and use it for chowning the kernel/initrd in
qemuDomainSetAllDeviceOwnership()
---
src/qemu_driver.c | 20 ++++++++++++--------
1 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/src/qemu_driver.c b/src/qemu_driver.c
index 412b68d..bd58435 100644
--- a/src/qemu_driver.c
+++ b/src/qemu_driver.c
@@ -1684,18 +1684,18 @@ static int qemuDomainSetHostdevOwnership(virConnectPtr conn,
}
-static int qemuDomainSetDiskOwnership(virConnectPtr conn,
- virDomainDiskDefPtr def,
+static int qemuDomainSetFileOwnership(virConnectPtr conn,
+ const char *path,
uid_t uid, gid_t gid)
{
- if (!def->src)
+ if (!path)
return 0;
- VIR_DEBUG("Setting ownership on %s to %d:%d", def->src, uid, gid);
- if (chown(def->src, uid, gid) < 0) {
+ VIR_DEBUG("Setting ownership on %s to %d:%d", path, uid, gid);
+ if (chown(path, uid, gid) < 0) {
virReportSystemError(conn, errno, _("cannot set ownership on %s"),
- def->src);
+ path);
return -1;
}
return 0;
@@ -1725,7 +1725,7 @@ static int qemuDomainSetDeviceOwnership(virConnectPtr conn,
(def->data.disk->readonly || def->data.disk->shared))
return 0;
- return qemuDomainSetDiskOwnership(conn, def->data.disk, uid, gid);
+ return qemuDomainSetFileOwnership(conn, def->data.disk->src, uid, gid);
case VIR_DOMAIN_DEVICE_HOSTDEV:
return qemuDomainSetHostdevOwnership(conn, def->data.hostdev, uid, gid);
@@ -1753,12 +1753,16 @@ static int qemuDomainSetAllDeviceOwnership(virConnectPtr conn,
uid = restore ? 0 : driver->user;
gid = restore ? 0 : driver->group;
+ if (qemuDomainSetFileOwnership(conn, def->os.kernel, uid, gid) < 0 ||
+ qemuDomainSetFileOwnership(conn, def->os.initrd, uid, gid) < 0)
+ return -1;
+
for (i = 0 ; i < def->ndisks ; i++) {
if (restore &&
(def->disks[i]->readonly || def->disks[i]->shared))
continue;
- if (qemuDomainSetDiskOwnership(conn, def->disks[i], uid, gid) < 0)
+ if (qemuDomainSetFileOwnership(conn, def->disks[i]->src, uid, gid) < 0)
return -1;
}
--
1.6.2.5