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  *      apr/02/05       Shaun Pereira Selective sub address matching with
   8  *                                      call user data
   9  */
  10
  11 #ifndef X25_KERNEL_H
  12 #define X25_KERNEL_H
  13
  14 #define SIOCX25GSUBSCRIP        (SIOCPROTOPRIVATE + 0)
  15 #define SIOCX25SSUBSCRIP        (SIOCPROTOPRIVATE + 1)
  16 #define SIOCX25GFACILITIES      (SIOCPROTOPRIVATE + 2)
  17 #define SIOCX25SFACILITIES      (SIOCPROTOPRIVATE + 3)
  18 #define SIOCX25GCALLUSERDATA    (SIOCPROTOPRIVATE + 4)
  19 #define SIOCX25SCALLUSERDATA    (SIOCPROTOPRIVATE + 5)
  20 #define SIOCX25GCAUSEDIAG       (SIOCPROTOPRIVATE + 6)
  21 #define SIOCX25SCUDMATCHLEN     (SIOCPROTOPRIVATE + 7)
  22 #define SIOCX25CALLACCPTAPPRV   (SIOCPROTOPRIVATE + 8)
  23 #define SIOCX25SENDCALLACCPT    (SIOCPROTOPRIVATE + 9)
  24
  25 /*
  26  *      Values for {get,set}sockopt.
  27  */
  28 #define X25_QBITINCL            1
  29
  30 /*
  31  *      X.25 Packet Size values.
  32  */
  33 #define X25_PS16                4
  34 #define X25_PS32                5
  35 #define X25_PS64                6
  36 #define X25_PS128               7
  37 #define X25_PS256               8
  38 #define X25_PS512               9
  39 #define X25_PS1024              10
  40 #define X25_PS2048              11
  41 #define X25_PS4096              12
  42
  43 /*
  44  * An X.121 address, it is held as ASCII text, null terminated, up to 15
  45  * digits and a null terminator.
  46  */
  47 struct x25_address {
  48         char x25_addr[16];
  49 };
  50
  51 /*
  52  *      Linux X.25 Address structure, used for bind, and connect mostly.
  53  */
  54 struct sockaddr_x25 {
  55         sa_family_t        sx25_family;         /* Must be AF_X25 */
  56         struct x25_address sx25_addr;           /* X.121 Address */
  57 };
  58
  59 /*
  60  *      DTE/DCE subscription options.
  61  *
  62  *      As this is missing lots of options, user should expect major
  63  *      changes of this structure in 2.5.x which might break compatibilty.
  64  *      The somewhat ugly dimension 200-sizeof() is needed to maintain
  65  *      backward compatibility.
  66  */
  67 struct x25_subscrip_struct {
  68         char device[200-sizeof(unsigned long)];
  69         unsigned long   global_facil_mask;      /* 0 to disable negotiation */
  70         unsigned int    extended;
  71 };
  72
  73 /* values for above global_facil_mask */
  74
  75 #define X25_MASK_REVERSE        0x01
  76 #define X25_MASK_THROUGHPUT     0x02
  77 #define X25_MASK_PACKET_SIZE    0x04
  78 #define X25_MASK_WINDOW_SIZE    0x08
  79
  80
  81
  82 /*
  83  *      Routing table control structure.
  84  */
  85 struct x25_route_struct {
  86         struct x25_address address;
  87         unsigned int       sigdigits;
  88         char               device[200];
  89 };
  90
  91 /*
  92  *      Facilities structure.
  93  */
  94 struct x25_facilities {
  95         unsigned int    winsize_in, winsize_out;
  96         unsigned int    pacsize_in, pacsize_out;
  97         unsigned int    throughput;
  98         unsigned int    reverse;
  99 };
 100
 101 /*
 102  *      Call User Data structure.
 103  */
 104 struct x25_calluserdata {
 105         unsigned int    cudlength;
 106         unsigned char   cuddata[128];
 107 };
 108
 109 /*
 110  *      Call clearing Cause and Diagnostic structure.
 111  */
 112 struct x25_causediag {
 113         unsigned char   cause;
 114         unsigned char   diagnostic;
 115 };
 116
 117 /*
 118  *      Further optional call user data match length selection
 119  */
 120 struct x25_subaddr {
 121         unsigned int cudmatchlength;
 122 };
 123
 124 #endif