virneserverclient: Introduce virNetServerClientHasSASLSession

We do have a similar method, serving the same purpose, for TLS, but we lack
one for SASL. So introduce one, in order for other modules to be able to find
out, if a SASL session is active, or better said, that a SASL session exists
at all.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

src/libvirt_sasl.syms

@@ -27,6 +27,7 @@ virNetSASLSessionServerStep;
 
 # rpc/virnetserverclient.h
 virNetServerClientGetSASLSession;
+virNetServerClientHasSASLSession;
 virNetServerClientSetSASLSession;
 
 

src/rpc/virnetserverclient.c

@@ -863,6 +863,15 @@ virNetSASLSessionPtr virNetServerClientGetSASLSession(virNetServerClientPtr clie
     virObjectUnlock(client);
     return sasl;
 }
+
+bool virNetServerClientHasSASLSession(virNetServerClientPtr client)
+{
+    bool has = false;
+    virObjectLock(client);
+    has = !!client->sasl;
+    virObjectUnlock(client);
+    return has;
+}
 #endif
 
 

src/rpc/virnetserverclient.h

@@ -91,6 +91,7 @@ int virNetServerClientGetTLSKeySize(virNetServerClientPtr client);
 # endif
 
 # ifdef WITH_SASL
+bool virNetServerClientHasSASLSession(virNetServerClientPtr client);
 void virNetServerClientSetSASLSession(virNetServerClientPtr client,
                                       virNetSASLSessionPtr sasl);
 virNetSASLSessionPtr virNetServerClientGetSASLSession(virNetServerClientPtr client);