[linux.git] / include / net / pptp.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NET_PPTP_H
#define _NET_PPTP_H

#include <linux/types.h>
#include <net/gre.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
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
ab10dccb GF	2	#ifndef _NET_PPTP_H
	3	#define _NET_PPTP_H
	4
949d6b40 JK	5	#include <linux/types.h>
	6	#include <net/gre.h>
	7
ab10dccb GF	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
ab10dccb GF	17	#define PPTP_HEADER_OVERHEAD (2+sizeof(struct pptp_gre_header))
ab10dccb GF	18	struct pptp_gre_header {
03459345	19	struct gre_base_hdr gre_hd;
ab10dccb GF	20	__be16 payload_len;
	21	__be16 call_id;
	22	__be32 seq;
	23	__be32 ack;
	24	} __packed;
	25
	26
	27	#endif