1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _NET_PPTP_H
 3#define _NET_PPTP_H
 4
 5#include <linux/types.h>
 6#include <net/gre.h>
 7
 8#define PPP_LCP_ECHOREQ 0x09
 9#define PPP_LCP_ECHOREP 0x0A
10#define SC_RCV_BITS     (SC_RCV_B7_1|SC_RCV_B7_0|SC_RCV_ODDP|SC_RCV_EVNP)
11
12#define MISSING_WINDOW 20
13#define WRAPPED(curseq, lastseq)\
14	((((curseq) & 0xffffff00) == 0) &&\
15	(((lastseq) & 0xffffff00) == 0xffffff00))
16
17#define PPTP_HEADER_OVERHEAD (2+sizeof(struct pptp_gre_header))
18struct pptp_gre_header {
19	struct gre_base_hdr gre_hd;
20	__be16 payload_len;
21	__be16 call_id;
22	__be32 seq;
23	__be32 ack;
24} __packed;
25
26
27#endif

 
 1#ifndef _NET_PPTP_H
 2#define _NET_PPTP_H
 
 
 
 3
 4#define PPP_LCP_ECHOREQ 0x09
 5#define PPP_LCP_ECHOREP 0x0A
 6#define SC_RCV_BITS     (SC_RCV_B7_1|SC_RCV_B7_0|SC_RCV_ODDP|SC_RCV_EVNP)
 7
 8#define MISSING_WINDOW 20
 9#define WRAPPED(curseq, lastseq)\
10	((((curseq) & 0xffffff00) == 0) &&\
11	(((lastseq) & 0xffffff00) == 0xffffff00))
12
13#define PPTP_HEADER_OVERHEAD (2+sizeof(struct pptp_gre_header))
14struct pptp_gre_header {
15	struct gre_base_hdr gre_hd;
16	__be16 payload_len;
17	__be16 call_id;
18	__be32 seq;
19	__be32 ack;
20} __packed;
21
22
23#endif