samba/samba-v4.6-credentials-fix-...

55 lines
1.8 KiB
Diff

commit 4dc389c6ae95b7bd34e762b5362c8a79fbda7c7c
Author: Andreas Schneider <asn@samba.org>
Date: Wed Dec 21 22:17:22 2016 +0100
auth/credentials: Always set the the realm if we set the principal from the ccache
This fixes a bug in gensec_gssapi_client_start() where an invalid realm
is used to get a Kerberos ticket.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 30c07065300281e3a67197fe39ed928346480ff7)
diff --git a/auth/credentials/credentials_krb5.c b/auth/credentials/credentials_krb5.c
index 0e68012..1912c48 100644
--- a/auth/credentials/credentials_krb5.c
+++ b/auth/credentials/credentials_krb5.c
@@ -107,7 +107,8 @@ static int cli_credentials_set_from_ccache(struct cli_credentials *cred,
enum credentials_obtained obtained,
const char **error_string)
{
-
+ bool ok;
+ char *realm;
krb5_principal princ;
krb5_error_code ret;
char *name;
@@ -134,11 +135,24 @@ static int cli_credentials_set_from_ccache(struct cli_credentials *cred,
return ret;
}
- cli_credentials_set_principal(cred, name, obtained);
-
+ ok = cli_credentials_set_principal(cred, name, obtained);
+ if (!ok) {
+ krb5_free_principal(ccache->smb_krb5_context->krb5_context, princ);
+ return ENOMEM;
+ }
free(name);
+ realm = smb_krb5_principal_get_realm(ccache->smb_krb5_context->krb5_context,
+ princ);
krb5_free_principal(ccache->smb_krb5_context->krb5_context, princ);
+ if (realm == NULL) {
+ return ENOMEM;
+ }
+ ok = cli_credentials_set_realm(cred, realm, obtained);
+ SAFE_FREE(realm);
+ if (!ok) {
+ return ENOMEM;
+ }
/* set the ccache_obtained here, as it just got set to UNINITIALISED by the calls above */
cred->ccache_obtained = obtained;