[libvirt] [PATCHv4 19/29] security: DAC: Implement per-image seclabel set
Refactor the code and reuse it to implement the functionality.
---
src/security/security_dac.c | 52 ++++++++++++++++++++++-----------------------
1 file changed, 25 insertions(+), 27 deletions(-)
diff --git a/src/security/security_dac.c b/src/security/security_dac.c
index f86d532..715f68b 100644
--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
@@ -289,22 +289,29 @@ virSecurityDACRestoreSecurityFileLabel(const char *path)
static int
-virSecurityDACSetSecurityFileLabel(virDomainDiskDefPtr disk,
- const char *path,
- size_t depth ATTRIBUTE_UNUSED,
- void *opaque)
+virSecurityDACSetSecurityImageLabel(virSecurityManagerPtr mgr,
+ virDomainDefPtr def,
+ virStorageSourcePtr src)
{
- virSecurityDACCallbackDataPtr cbdata = opaque;
- virSecurityManagerPtr mgr = cbdata->manager;
- virSecurityLabelDefPtr secdef = cbdata->secdef;
- virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
+ virSecurityLabelDefPtr secdef;
virSecurityDeviceLabelDefPtr disk_seclabel;
+ virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
uid_t user;
gid_t group;
- disk_seclabel = virStorageSourceGetSecurityLabelDef(disk->src,
- SECURITY_DAC_NAME);
+ if (!priv->dynamicOwnership)
+ return 0;
+
+ /* XXX: Add support for gluster DAC permissions */
+ if (!src->path || !virStorageSourceIsLocalStorage(src))
+ return 0;
+
+ secdef = virDomainDefGetSecurityLabelDef(def, SECURITY_DAC_NAME);
+ if (secdef && secdef->norelabel)
+ return 0;
+ disk_seclabel = virStorageSourceGetSecurityLabelDef(src,
+ SECURITY_DAC_NAME);
if (disk_seclabel && disk_seclabel->norelabel)
return 0;
@@ -316,7 +323,7 @@ virSecurityDACSetSecurityFileLabel(virDomainDiskDefPtr disk,
return -1;
}
- return virSecurityDACSetOwnership(path, user, group);
+ return virSecurityDACSetOwnership(src->path, user, group);
}
@@ -326,24 +333,14 @@ virSecurityDACSetSecurityDiskLabel(virSecurityManagerPtr mgr,
virDomainDiskDefPtr disk)
{
- virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
- virSecurityDACCallbackData cbdata;
- virSecurityLabelDefPtr secdef;
+ virStorageSourcePtr next;
- if (!priv->dynamicOwnership)
- return 0;
-
- secdef = virDomainDefGetSecurityLabelDef(def, SECURITY_DAC_NAME);
-
- if (secdef && secdef->norelabel)
- return 0;
+ for (next = disk->src; next; next = next->backingStore) {
+ if (virSecurityDACSetSecurityImageLabel(mgr, def, next) < 0)
+ return -1;
+ }
- cbdata.manager = mgr;
- cbdata.secdef = secdef;
- return virDomainDiskDefForeachPath(disk,
- false,
- virSecurityDACSetSecurityFileLabel,
- &cbdata);
+ return 0;
}
@@ -1277,6 +1274,7 @@ virSecurityDriver virSecurityDriverDAC = {
.domainSetSecurityDiskLabel = virSecurityDACSetSecurityDiskLabel,
.domainRestoreSecurityDiskLabel = virSecurityDACRestoreSecurityDiskLabel,
+ .domainSetSecurityImageLabel = virSecurityDACSetSecurityImageLabel,
.domainRestoreSecurityImageLabel = virSecurityDACRestoreSecurityImageLabel,
.domainSetSecurityDaemonSocketLabel = virSecurityDACSetDaemonSocketLabel,
--
1.9.3