Commit 0a018944 authored by Steve French's avatar Steve French

smb3: warn on confusing error scenario with sec=krb5

When mounting with Kerberos, users have been confused about the
default error returned in scenarios in which either keyutils is
not installed or the user did not properly acquire a krb5 ticket.
Log a warning message in the case that "ENOKEY" is returned
from the get_spnego_key upcall so that users can better understand
why mount failed in those two cases.

CC: Stable <stable@vger.kernel.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent baf57b56
......@@ -1387,6 +1387,8 @@ SMB2_auth_kerberos(struct SMB2_sess_data *sess_data)
spnego_key = cifs_get_spnego_key(ses);
if (IS_ERR(spnego_key)) {
rc = PTR_ERR(spnego_key);
if (rc == -ENOKEY)
cifs_dbg(VFS, "Verify user has a krb5 ticket and keyutils is installed\n");
spnego_key = NULL;
goto out;
}
......
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