Commit 777f69b8 authored by Stefan Metzmacher's avatar Stefan Metzmacher Committed by Steve French

fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication

Only server which map unknown users to guest will allow
access using a non-null NTChallengeResponse.

For Samba it's the "map to guest = bad user" option.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11913Signed-off-by: default avatarStefan Metzmacher <metze@samba.org>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
parent fa8f3a35
......@@ -781,6 +781,7 @@ sess_auth_ntlm(struct sess_data *sess_data)
capabilities = cifs_ssetup_hdr(ses, pSMB);
pSMB->req_no_secext.Capabilities = cpu_to_le32(capabilities);
if (ses->user_name != NULL) {
pSMB->req_no_secext.CaseInsensitivePasswordLength =
cpu_to_le16(CIFS_AUTH_RESP_SIZE);
pSMB->req_no_secext.CaseSensitivePasswordLength =
......@@ -801,6 +802,10 @@ sess_auth_ntlm(struct sess_data *sess_data)
memcpy(bcc_ptr, ses->auth_key.response + CIFS_SESS_KEY_SIZE,
CIFS_AUTH_RESP_SIZE);
bcc_ptr += CIFS_AUTH_RESP_SIZE;
} else {
pSMB->req_no_secext.CaseInsensitivePasswordLength = 0;
pSMB->req_no_secext.CaseSensitivePasswordLength = 0;
}
if (ses->capabilities & CAP_UNICODE) {
/* unicode strings must be word aligned */
......
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