[libvirt] [PATCH] qemu: Search for disk in qemuDomainGetBlockInfo

[Michal Privoznik]

The commit 89b6284fd94ce5b13ee6b002f9167f5d9074aa7a caused regression.
Although we now allow users to input e.g. 'hda' instead of whole path,
we still need to search for appropriate disk in VM definition.
---
 src/qemu/qemu_driver.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 1925ba5..fec4eeb 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -7755,6 +7755,7 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
     virStorageFileMetadata *meta = NULL;
     virDomainDiskDefPtr disk = NULL;
     struct stat sb;
+    int i;
     int format;
     const char *actual;
 
@@ -7785,6 +7786,21 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
     }
     path = actual;
 
+    /* Check the path belongs to this domain. */
+    for (i = 0 ; i < vm->def->ndisks ; i++) {
+        if (vm->def->disks[i]->src != NULL &&
+            STREQ (vm->def->disks[i]->src, path)) {
+            disk = vm->def->disks[i];
+            break;
+        }
+    }
+
+    if (!disk) {
+        qemuReportError(VIR_ERR_INVALID_ARG,
+                        _("invalid path %s not assigned to domain"), path);
+        goto cleanup;
+    }
+
     /* The path is correct, now try to open it and get its size. */
     fd = open(path, O_RDONLY);
     if (fd == -1) {
-- 
1.7.3.4