include/linux/x25.h

   1 /*
   2  * These are the public elements of the Linux kernel X.25 implementation.
   3  *
   4  *      History
   5  *      mar/20/00       Daniela Squassoni Disabling/enabling of facilities
   6  *                                        negotiation.
   7  */
   8
   9 #ifndef X25_KERNEL_H
  10 #define X25_KERNEL_H
  11
  12 #define SIOCX25GSUBSCRIP        (SIOCPROTOPRIVATE + 0)
  13 #define SIOCX25SSUBSCRIP        (SIOCPROTOPRIVATE + 1)
  14 #define SIOCX25GFACILITIES      (SIOCPROTOPRIVATE + 2)
  15 #define SIOCX25SFACILITIES      (SIOCPROTOPRIVATE + 3)
  16 #define SIOCX25GCALLUSERDATA    (SIOCPROTOPRIVATE + 4)
  17 #define SIOCX25SCALLUSERDATA    (SIOCPROTOPRIVATE + 5)
  18 #define SIOCX25GCAUSEDIAG       (SIOCPROTOPRIVATE + 6)
  19
  20 /*
  21  *      Values for {get,set}sockopt.
  22  */
  23 #define X25_QBITINCL            1
  24
  25 /*
  26  *      X.25 Packet Size values.
  27  */
  28 #define X25_PS16                4
  29 #define X25_PS32                5
  30 #define X25_PS64                6
  31 #define X25_PS128               7
  32 #define X25_PS256               8
  33 #define X25_PS512               9
  34 #define X25_PS1024              10
  35 #define X25_PS2048              11
  36 #define X25_PS4096              12
  37
  38 /*
  39  * An X.121 address, it is held as ASCII text, null terminated, up to 15
  40  * digits and a null terminator.
  41  */
  42 struct x25_address {
  43         char x25_addr[16];
  44 };
  45
  46 /*
  47  *      Linux X.25 Address structure, used for bind, and connect mostly.
  48  */
  49 struct sockaddr_x25 {
  50         sa_family_t        sx25_family;         /* Must be AF_X25 */
  51         struct x25_address sx25_addr;           /* X.121 Address */
  52 };
  53
  54 /*
  55  *      DTE/DCE subscription options.
  56  *
  57  *      As this is missing lots of options, user should expect major
  58  *      changes of this structure in 2.5.x which might break compatibilty.
  59  *      The somewhat ugly dimension 200-sizeof() is needed to maintain
  60  *      backward compatibility.
  61  */
  62 struct x25_subscrip_struct {
  63         char device[200-sizeof(unsigned long)];
  64         unsigned long   global_facil_mask;      /* 0 to disable negotiation */
  65         unsigned int    extended;
  66 };
  67
  68 /* values for above global_facil_mask */
  69
  70 #define X25_MASK_REVERSE        0x01
  71 #define X25_MASK_THROUGHPUT     0x02
  72 #define X25_MASK_PACKET_SIZE    0x04
  73 #define X25_MASK_WINDOW_SIZE    0x08
  74
  75
  76
  77 /*
  78  *      Routing table control structure.
  79  */
  80 struct x25_route_struct {
  81         struct x25_address address;
  82         unsigned int       sigdigits;
  83         char               device[200];
  84 };
  85
  86 /*
  87  *      Facilities structure.
  88  */
  89 struct x25_facilities {
  90         unsigned int    winsize_in, winsize_out;
  91         unsigned int    pacsize_in, pacsize_out;
  92         unsigned int    throughput;
  93         unsigned int    reverse;
  94 };
  95
  96 /*
  97  *      Call User Data structure.
  98  */
  99 struct x25_calluserdata {
 100         unsigned int    cudlength;
 101         unsigned char   cuddata[128];
 102 };
 103
 104 /*
 105  *      Call clearing Cause and Diagnostic structure.
 106  */
 107 struct x25_causediag {
 108         unsigned char   cause;
 109         unsigned char   diagnostic;
 110 };
 111
 112 #endif