include/net/pptp.h

   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))
  14 struct 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