include/linux/tcp_diag.h

   1 #ifndef _TCP_DIAG_H_
   2 #define _TCP_DIAG_H_ 1
   3
   4 /* Just some random number */
   5 #define TCPDIAG_GETSOCK 18
   6
   7 /* Socket identity */
   8 struct tcpdiag_sockid
   9 {
  10         __u16   tcpdiag_sport;
  11         __u16   tcpdiag_dport;
  12         __u32   tcpdiag_src[4];
  13         __u32   tcpdiag_dst[4];
  14         __u32   tcpdiag_if;
  15         __u32   tcpdiag_cookie[2];
  16 #define TCPDIAG_NOCOOKIE (~0U)
  17 };
  18
  19 /* Request structure */
  20
  21 struct tcpdiagreq
  22 {
  23         __u8    tcpdiag_family;         /* Family of addresses. */
  24         __u8    tcpdiag_src_len;
  25         __u8    tcpdiag_dst_len;
  26         __u8    tcpdiag_ext;            /* Query extended information */
  27
  28         struct tcpdiag_sockid id;
  29
  30         __u32   tcpdiag_states;         /* States to dump */
  31         __u32   tcpdiag_dbs;            /* Tables to dump (NI) */
  32 };
  33
  34 enum
  35 {
  36         TCPDIAG_REQ_NONE,
  37         TCPDIAG_REQ_BYTECODE,
  38 };
  39
  40 #define TCPDIAG_REQ_MAX TCPDIAG_REQ_BYTECODE
  41
  42 /* Bytecode is sequence of 4 byte commands followed by variable arguments.
  43  * All the commands identified by "code" are conditional jumps forward:
  44  * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
  45  * length of the command and its arguments.
  46  */
  47
  48 struct tcpdiag_bc_op
  49 {
  50         unsigned char   code;
  51         unsigned char   yes;
  52         unsigned short  no;
  53 };
  54
  55 enum
  56 {
  57         TCPDIAG_BC_NOP,
  58         TCPDIAG_BC_JMP,
  59         TCPDIAG_BC_S_GE,
  60         TCPDIAG_BC_S_LE,
  61         TCPDIAG_BC_D_GE,
  62         TCPDIAG_BC_D_LE,
  63         TCPDIAG_BC_AUTO,
  64         TCPDIAG_BC_S_COND,
  65         TCPDIAG_BC_D_COND,
  66 };
  67
  68 struct tcpdiag_hostcond
  69 {
  70         __u8    family;
  71         __u8    prefix_len;
  72         int     port;
  73         __u32   addr[0];
  74 };
  75
  76 /* Base info structure. It contains socket identity (addrs/ports/cookie)
  77  * and, alas, the information shown by netstat. */
  78 struct tcpdiagmsg
  79 {
  80         __u8    tcpdiag_family;
  81         __u8    tcpdiag_state;
  82         __u8    tcpdiag_timer;
  83         __u8    tcpdiag_retrans;
  84
  85         struct tcpdiag_sockid id;
  86
  87         __u32   tcpdiag_expires;
  88         __u32   tcpdiag_rqueue;
  89         __u32   tcpdiag_wqueue;
  90         __u32   tcpdiag_uid;
  91         __u32   tcpdiag_inode;
  92 };
  93
  94 /* Extensions */
  95
  96 enum
  97 {
  98         TCPDIAG_NONE,
  99         TCPDIAG_MEMINFO,
 100         TCPDIAG_INFO,
 101         TCPDIAG_VEGASINFO,
 102 };
 103
 104 #define TCPDIAG_MAX TCPDIAG_VEGASINFO
 105
 106
 107 /* TCPDIAG_MEM */
 108
 109 struct tcpdiag_meminfo
 110 {
 111         __u32   tcpdiag_rmem;
 112         __u32   tcpdiag_wmem;
 113         __u32   tcpdiag_fmem;
 114         __u32   tcpdiag_tmem;
 115 };
 116
 117 /* TCPDIAG_VEGASINFO */
 118
 119 struct tcpvegas_info {
 120         __u32   tcpv_enabled;
 121         __u32   tcpv_rttcnt;
 122         __u32   tcpv_rtt;
 123         __u32   tcpv_minrtt;
 124 };
 125
 126
 127 #endif /* _TCP_DIAG_H_ */