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 (2+sizeof(struct pptp_gre_header)) |
18 | struct { |
19 | struct gre_base_hdr ; |
20 | __be16 ; |
21 | __be16 ; |
22 | __be32 ; |
23 | __be32 ; |
24 | } __packed; |
25 | |
26 | |
27 | #endif |
28 | |