include/linux/inet_diag.h

   1 #ifndef _INET_DIAG_H_
   2 #define _INET_DIAG_H_ 1
   3
   4 /* Just some random number */
   5 #define TCPDIAG_GETSOCK 18
   6 #define DCCPDIAG_GETSOCK 19
   7
   8 #define INET_DIAG_GETSOCK_MAX 24
   9
  10 /* Socket identity */
  11 struct inet_diag_sockid {
  12         __be16  idiag_sport;
  13         __be16  idiag_dport;
  14         __be32  idiag_src[4];
  15         __be32  idiag_dst[4];
  16         __u32   idiag_if;
  17         __u32   idiag_cookie[2];
  18 #define INET_DIAG_NOCOOKIE (~0U)
  19 };
  20
  21 /* Request structure */
  22
  23 struct inet_diag_req {
  24         __u8    idiag_family;           /* Family of addresses. */
  25         __u8    idiag_src_len;
  26         __u8    idiag_dst_len;
  27         __u8    idiag_ext;              /* Query extended information */
  28
  29         struct inet_diag_sockid id;
  30
  31         __u32   idiag_states;           /* States to dump */
  32         __u32   idiag_dbs;              /* Tables to dump (NI) */
  33 };
  34
  35 enum {
  36         INET_DIAG_REQ_NONE,
  37         INET_DIAG_REQ_BYTECODE,
  38 };
  39
  40 #define INET_DIAG_REQ_MAX INET_DIAG_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 inet_diag_bc_op {
  49         unsigned char   code;
  50         unsigned char   yes;
  51         unsigned short  no;
  52 };
  53
  54 enum {
  55         INET_DIAG_BC_NOP,
  56         INET_DIAG_BC_JMP,
  57         INET_DIAG_BC_S_GE,
  58         INET_DIAG_BC_S_LE,
  59         INET_DIAG_BC_D_GE,
  60         INET_DIAG_BC_D_LE,
  61         INET_DIAG_BC_AUTO,
  62         INET_DIAG_BC_S_COND,
  63         INET_DIAG_BC_D_COND,
  64 };
  65
  66 struct inet_diag_hostcond {
  67         __u8    family;
  68         __u8    prefix_len;
  69         int     port;
  70         __be32  addr[0];
  71 };
  72
  73 /* Base info structure. It contains socket identity (addrs/ports/cookie)
  74  * and, alas, the information shown by netstat. */
  75 struct inet_diag_msg {
  76         __u8    idiag_family;
  77         __u8    idiag_state;
  78         __u8    idiag_timer;
  79         __u8    idiag_retrans;
  80
  81         struct inet_diag_sockid id;
  82
  83         __u32   idiag_expires;
  84         __u32   idiag_rqueue;
  85         __u32   idiag_wqueue;
  86         __u32   idiag_uid;
  87         __u32   idiag_inode;
  88 };
  89
  90 /* Extensions */
  91
  92 enum {
  93         INET_DIAG_NONE,
  94         INET_DIAG_MEMINFO,
  95         INET_DIAG_INFO,
  96         INET_DIAG_VEGASINFO,
  97         INET_DIAG_CONG,
  98 };
  99
 100 #define INET_DIAG_MAX INET_DIAG_CONG
 101
 102
 103 /* INET_DIAG_MEM */
 104
 105 struct inet_diag_meminfo {
 106         __u32   idiag_rmem;
 107         __u32   idiag_wmem;
 108         __u32   idiag_fmem;
 109         __u32   idiag_tmem;
 110 };
 111
 112 /* INET_DIAG_VEGASINFO */
 113
 114 struct tcpvegas_info {
 115         __u32   tcpv_enabled;
 116         __u32   tcpv_rttcnt;
 117         __u32   tcpv_rtt;
 118         __u32   tcpv_minrtt;
 119 };
 120
 121 #ifdef __KERNEL__
 122 struct sock;
 123 struct inet_hashinfo;
 124
 125 struct inet_diag_handler {
 126         struct inet_hashinfo    *idiag_hashinfo;
 127         void                    (*idiag_get_info)(struct sock *sk,
 128                                                   struct inet_diag_msg *r,
 129                                                   void *info);
 130         __u16                   idiag_info_size;
 131         __u16                   idiag_type;
 132 };
 133
 134 extern int  inet_diag_register(const struct inet_diag_handler *handler);
 135 extern void inet_diag_unregister(const struct inet_diag_handler *handler);
 136 #endif /* __KERNEL__ */
 137
 138 #endif /* _INET_DIAG_H_ */