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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NET_PPTP_H
#define _NET_PPTP_H
#define PPP_LCP_ECHOREQ 0x09
#define PPP_LCP_ECHOREP 0x0A
#define SC_RCV_BITS (SC_RCV_B7_1|SC_RCV_B7_0|SC_RCV_ODDP|SC_RCV_EVNP)
#define MISSING_WINDOW 20
#define WRAPPED(curseq, lastseq)\
((((curseq) & 0xffffff00) == 0) &&\
(((lastseq) & 0xffffff00) == 0xffffff00))
#define PPTP_HEADER_OVERHEAD (2+sizeof(struct pptp_gre_header))
struct pptp_gre_header {
struct gre_base_hdr gre_hd;
__be16 payload_len;
__be16 call_id;
__be32 seq;
__be32 ack;
} __packed;
#endif
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