This merges in my 'always use ADS' patch. Tested on a mix of NT and ADS

domains, this patch ensures that we always use the ADS backend when
security=ADS, and the remote server is capable.

The routines used for this behaviour have been upgraded to modern Samba
codeing standards.

This is a change in behaviour for mixed mode domains, and if the trusted
domain cannot be reached with our current krb5.conf file, we will show
that domain as disconnected.

This is in line with existing behaviour for native mode domains, and for
our primary domain.

As a consequence of testing this patch, I found that our kerberos error
handling was well below par - we would often throw away useful error
values.  These changes move more routines to ADS_STATUS to return
kerberos errors.

Also found when valgrinding the setup, fix a few memory leaks.

While sniffing the resultant connections, I noticed we would query our
list of trusted domains twice - so I have reworked some of the code to
avoid that.

Andrew Bartlett
(This used to be commit 7c34de8096b86d2869e7177420fe129bd0c7541d)

1 files changed, 10 insertions, 7 deletions

diff --git a/source3/libsmb/clispnego.c b/source3/libsmb/clispnego.c
index 92543736ff..e6cadc466c 100644
--- a/source3/libsmb/clispnego.c
+++ b/source3/libsmb/clispnego.c
@@ -323,27 +323,30 @@ BOOL spnego_parse_krb5_wrap(DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
    generate a SPNEGO negTokenTarg packet, ready for a EXTENDED_SECURITY
    kerberos session setup 
 */
-DATA_BLOB spnego_gen_negTokenTarg(const char *principal, int time_offset, DATA_BLOB *session_key_krb5)
+int spnego_gen_negTokenTarg(const char *principal, int time_offset, 
+			    DATA_BLOB *targ, 
+			    DATA_BLOB *session_key_krb5)
 {
-	DATA_BLOB tkt, tkt_wrapped, targ;
+	int retval;
+	DATA_BLOB tkt, tkt_wrapped;
 	const char *krb_mechs[] = {OID_KERBEROS5_OLD, OID_NTLMSSP, NULL};
 
 	/* get a kerberos ticket for the service and extract the session key */
-	tkt = cli_krb5_get_ticket(principal, time_offset, session_key_krb5);
+	retval = cli_krb5_get_ticket(principal, time_offset, &tkt, session_key_krb5);
 
-	if (tkt.data == NULL)
-		return tkt;
+	if (retval)
+		return retval;
 
 	/* wrap that up in a nice GSS-API wrapping */
 	tkt_wrapped = spnego_gen_krb5_wrap(tkt, TOK_ID_KRB_AP_REQ);
 
 	/* and wrap that in a shiny SPNEGO wrapper */
-	targ = gen_negTokenTarg(krb_mechs, tkt_wrapped);
+	*targ = gen_negTokenTarg(krb_mechs, tkt_wrapped);
 
 	data_blob_free(&tkt_wrapped);
 	data_blob_free(&tkt);
 
-	return targ;
+	return retval;
 }