bool bigendian);
NTSTATUS dcerpc_guess_sizes(struct pipe_auth_data *auth,
size_t header_len, size_t data_left,
- size_t max_xmit_frag, size_t pad_alignment,
+ size_t max_xmit_frag,
size_t *data_to_send, size_t *frag_len,
size_t *auth_len, size_t *pad_len);
NTSTATUS dcerpc_add_auth_footer(struct pipe_auth_data *auth,
* @param header_len The length of the packet header
* @param data_left The data left in the send buffer
* @param max_xmit_frag The max fragment size.
-* @param pad_alignment The NDR padding size.
* @param data_to_send [out] The max data we will send in the pdu
* @param frag_len [out] The total length of the fragment
* @param auth_len [out] The length of the auth trailer
*/
NTSTATUS dcerpc_guess_sizes(struct pipe_auth_data *auth,
size_t header_len, size_t data_left,
- size_t max_xmit_frag, size_t pad_alignment,
+ size_t max_xmit_frag,
size_t *data_to_send, size_t *frag_len,
size_t *auth_len, size_t *pad_len)
{
case DCERPC_AUTH_TYPE_KRB5:
gensec_security = talloc_get_type_abort(auth->auth_ctx,
struct gensec_security);
- *auth_len = gensec_sig_size(gensec_security, max_len);
+ mod_len = (max_len % DCERPC_AUTH_PAD_ALIGNMENT);
+ *auth_len = gensec_sig_size(gensec_security, max_len - mod_len);
+ if (*auth_len == 0) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
break;
case DCERPC_AUTH_TYPE_SCHANNEL:
}
max_len -= *auth_len;
+ mod_len = (max_len % DCERPC_AUTH_PAD_ALIGNMENT);
+ max_len -= mod_len;
*data_to_send = MIN(max_len, data_left);
- mod_len = (header_len + *data_to_send) % pad_alignment;
- if (mod_len) {
- *pad_len = pad_alignment - mod_len;
- } else {
- *pad_len = 0;
- }
-
- if (*data_to_send + *pad_len > max_len) {
- *data_to_send -= pad_alignment;
- }
+ *pad_len = DCERPC_AUTH_PAD_LENGTH(*data_to_send);
*frag_len = header_len + *data_to_send + *pad_len
+ DCERPC_AUTH_TRAILER_LENGTH + *auth_len;
status = dcerpc_guess_sizes(state->cli->auth,
DCERPC_REQUEST_LENGTH, data_left,
state->cli->max_xmit_frag,
- CLIENT_NDR_PADDING_SIZE,
&data_sent_thistime,
&frag_len, &auth_len, &pad_len);
if (!NT_STATUS_IS_OK(status)) {