[PATCH v2 9/9] domain_conf.c: move idmapEntry checks to validate callback

[Daniel Henrique Barboza]

Create a new function called virDomainDefIdMapValidate() and
use it to move these checks out of virDomainIdmapDefParseXML()
and virDomainDefParseXML().

Signed-off-by: Daniel Henrique Barboza <danielhb413 at gmail.com>
---
 src/conf/domain_conf.c | 42 ++++++++++++++++++++++++++----------------
 1 file changed, 26 insertions(+), 16 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 11711ba05d..471de235a1 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -7475,6 +7475,29 @@ virDomainDefTunablesValidate(const virDomainDef *def)
 }
 
 
+static int
+virDomainDefIdMapValidate(const virDomainDef *def)
+{
+    if ((def->idmap.uidmap && !def->idmap.gidmap) ||
+        (!def->idmap.uidmap && def->idmap.gidmap)) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("uid and gid should be mapped both"));
+        return -1;
+    }
+
+    if ((def->idmap.uidmap && def->idmap.uidmap[0].start != 0) ||
+        (def->idmap.gidmap && def->idmap.gidmap[0].start != 0)) {
+        /* Root user of container hasn't been mapped to any user of host,
+         * return error. */
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("You must map the root user of container"));
+        return -1;
+    }
+
+    return 0;
+}
+
+
 static int
 virDomainDefValidateInternal(const virDomainDef *def,
                              virDomainXMLOptionPtr xmlopt)
@@ -7529,6 +7552,9 @@ virDomainDefValidateInternal(const virDomainDef *def,
     if (virDomainDefTunablesValidate(def) < 0)
         return -1;
 
+    if (virDomainDefIdMapValidate(def) < 0)
+        return -1;
+
     if (virDomainNumaDefValidate(def->numa) < 0)
         return -1;
 
@@ -19045,15 +19071,6 @@ virDomainIdmapDefParseXML(xmlXPathContextPtr ctxt,
 
     qsort(idmap, num, sizeof(idmap[0]), virDomainIdMapEntrySort);
 
-    if (idmap[0].start != 0) {
-        /* Root user of container hasn't been mapped to any user of host,
-         * return error. */
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                       _("You must map the root user of container"));
-        VIR_FREE(idmap);
-        return NULL;
-    }
-
     return idmap;
 }
 
@@ -22543,13 +22560,6 @@ virDomainDefParseXML(xmlDocPtr xml,
     }
     VIR_FREE(nodes);
 
-    if ((def->idmap.uidmap && !def->idmap.gidmap) ||
-        (!def->idmap.uidmap && def->idmap.gidmap)) {
-            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                           _("uid and gid should be mapped both"));
-            goto error;
-    }
-
     if ((n = virXPathNodeSet("./sysinfo", ctxt, &nodes)) < 0)
         goto error;
 
-- 
2.26.2