4:55 a.m.
Move the code to qemu_domain.c so that it can be reused in other parts
of the qemu driver. 'qemu_domain' was chosen as the permissions are
based on the domain configuration.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_domain.c | 42 +++++++++++++++++++++++++++++++++++
src/qemu/qemu_domain.h | 7 ++++++
src/qemu/qemu_driver.c | 50 +++++-------------------------------------
3 files changed, 54 insertions(+), 45 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index c440c79e1d..670db6ebfb 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -64,6 +64,7 @@
#include "virdomaincheckpointobjlist.h"
#include "backup_conf.h"
#include "virutil.h"
+#include "virqemu.h"
#include <sys/time.h>
#include <fcntl.h>
@@ -10679,3 +10680,44 @@ qemuDomainDiskBlockJobIsSupported(virDomainObjPtr vm,
return true;
}
+
+
+/**
+ * qemuDomainOpenFile:
+ * @driver: driver object
+ * @vm: domain object
+ * @path: path to file to open
+ * @oflags: flags for opening/creation of the file
+ * @needUnlink: set to true if file was created by this function
+ *
+ * Internal function to properly create or open existing files, with
+ * ownership affected by qemu driver setup and domain DAC label.
+ *
+ * Returns the file descriptor on success and negative errno on failure.
+ *
+ * This function should not be used on storage sources. Use
+ * qemuDomainStorageFileInit and storage driver APIs if possible.
+ **/
+int
+qemuDomainOpenFile(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ const char *path,
+ int oflags,
+ bool *needUnlink)
+{
+ g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
+ uid_t user = cfg->user;
+ gid_t group = cfg->group;
+ bool dynamicOwnership = cfg->dynamicOwnership;
+ virSecurityLabelDefPtr seclabel;
+
+ /* TODO: Take imagelabel into account? */
+ if (vm &&
+ (seclabel = virDomainDefGetSecurityLabelDef(vm->def, "dac")) != NULL
&&
+ seclabel->label != NULL &&
+ (virParseOwnershipIds(seclabel->label, &user, &group) < 0))
+ return -1;
+
+ return virQEMUFileOpenAs(user, group, dynamicOwnership,
+ path, oflags, needUnlink);
+}
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 3a1bcbbfa3..ef03702fa1 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -1017,3 +1017,10 @@ qemuDomainDiskBlockJobIsSupported(virDomainObjPtr vm,
int
qemuDomainDefNumaCPUsRectify(virDomainDefPtr def,
virQEMUCapsPtr qemuCaps);
+
+int
+qemuDomainOpenFile(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ const char *path,
+ int oflags,
+ bool *needUnlink);
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a667eb21bf..0bc7eebe9a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3021,46 +3021,6 @@ qemuCompressGetCommand(virQEMUSaveFormat compression)
return ret;
}
-/**
- * qemuOpenFile:
- * @driver: driver object
- * @vm: domain object
- * @path: path to file to open
- * @oflags: flags for opening/creation of the file
- * @needUnlink: set to true if file was created by this function
- *
- * Internal function to properly create or open existing files, with
- * ownership affected by qemu driver setup and domain DAC label.
- *
- * Returns the file descriptor on success and negative errno on failure.
- *
- * This function should not be used on storage sources. Use
- * qemuDomainStorageFileInit and storage driver APIs if possible.
- **/
-static int
-qemuOpenFile(virQEMUDriverPtr driver,
- virDomainObjPtr vm,
- const char *path,
- int oflags,
- bool *needUnlink)
-{
- g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
- uid_t user = cfg->user;
- gid_t group = cfg->group;
- bool dynamicOwnership = cfg->dynamicOwnership;
- virSecurityLabelDefPtr seclabel;
-
- /* TODO: Take imagelabel into account? */
- if (vm &&
- (seclabel = virDomainDefGetSecurityLabelDef(vm->def, "dac")) != NULL
&&
- seclabel->label != NULL &&
- (virParseOwnershipIds(seclabel->label, &user, &group) < 0))
- return -1;
-
- return virQEMUFileOpenAs(user, group, dynamicOwnership,
- path, oflags, needUnlink);
-}
-
static int
qemuFileWrapperFDClose(virDomainObjPtr vm,
@@ -3154,7 +3114,7 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,
if (qemuFileWrapperFDClose(vm, wrapperFd) < 0)
goto cleanup;
- if ((fd = qemuOpenFile(driver, vm, path, O_WRONLY, NULL)) < 0 ||
+ if ((fd = qemuDomainOpenFile(driver, vm, path, O_WRONLY, NULL)) < 0 ||
virQEMUSaveDataFinish(data, &fd, path) < 0)
goto cleanup;
@@ -6593,7 +6553,7 @@ qemuDomainSaveImageOpen(virQEMUDriverPtr driver,
oflags |= directFlag;
}
- if ((fd = qemuOpenFile(driver, NULL, path, oflags, NULL)) < 0)
+ if ((fd = qemuDomainOpenFile(driver, NULL, path, oflags, NULL)) < 0)
return -1;
if (bypass_cache &&
@@ -11593,7 +11553,7 @@ qemuDomainMemoryPeek(virDomainPtr dom,
* @ret_sb: pointer to return stat buffer (local or remote)
* @skipInaccessible: Don't report error if files are not accessible
*
- * For local storage, open the file using qemuOpenFile and then use
+ * For local storage, open the file using qemuDomainOpenFile and then use
* fstat() to grab the stat struct data for the caller.
*
* For remote storage, attempt to access the file and grab the stat
@@ -11616,8 +11576,8 @@ qemuDomainStorageOpenStat(virQEMUDriverPtr driver,
if (skipInaccessible && !virFileExists(src->path))
return 0;
- if ((*ret_fd = qemuOpenFile(driver, vm, src->path, O_RDONLY,
- NULL)) < 0)
+ if ((*ret_fd = qemuDomainOpenFile(driver, vm, src->path, O_RDONLY,
+ NULL)) < 0)
return -1;
if (fstat(*ret_fd, ret_sb) < 0) {
--
2.26.2