include/uapi/linux/inet_diag.h

   1 #ifndef _UAPI_INET_DIAG_H_
   2 #define _UAPI_INET_DIAG_H_
   3
   4 #include <linux/types.h>
   5
   6 /* Just some random number */
   7 #define TCPDIAG_GETSOCK 18
   8 #define DCCPDIAG_GETSOCK 19
   9
  10 #define INET_DIAG_GETSOCK_MAX 24
  11
  12 /* Socket identity */
  13 struct inet_diag_sockid {
  14         __be16  idiag_sport;
  15         __be16  idiag_dport;
  16         __be32  idiag_src[4];
  17         __be32  idiag_dst[4];
  18         __u32   idiag_if;
  19         __u32   idiag_cookie[2];
  20 #define INET_DIAG_NOCOOKIE (~0U)
  21 };
  22
  23 /* Request structure */
  24
  25 struct inet_diag_req {
  26         __u8    idiag_family;           /* Family of addresses. */
  27         __u8    idiag_src_len;
  28         __u8    idiag_dst_len;
  29         __u8    idiag_ext;              /* Query extended information */
  30
  31         struct inet_diag_sockid id;
  32
  33         __u32   idiag_states;           /* States to dump */
  34         __u32   idiag_dbs;              /* Tables to dump (NI) */
  35 };
  36
  37 struct inet_diag_req_v2 {
  38         __u8    sdiag_family;
  39         __u8    sdiag_protocol;
  40         __u8    idiag_ext;
  41         __u8    pad;
  42         __u32   idiag_states;
  43         struct inet_diag_sockid id;
  44 };
  45
  46 enum {
  47         INET_DIAG_REQ_NONE,
  48         INET_DIAG_REQ_BYTECODE,
  49 };
  50
  51 #define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
  52
  53 /* Bytecode is sequence of 4 byte commands followed by variable arguments.
  54  * All the commands identified by "code" are conditional jumps forward:
  55  * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
  56  * length of the command and its arguments.
  57  */
  58
  59 struct inet_diag_bc_op {
  60         unsigned char   code;
  61         unsigned char   yes;
  62         unsigned short  no;
  63 };
  64
  65 enum {
  66         INET_DIAG_BC_NOP,
  67         INET_DIAG_BC_JMP,
  68         INET_DIAG_BC_S_GE,
  69         INET_DIAG_BC_S_LE,
  70         INET_DIAG_BC_D_GE,
  71         INET_DIAG_BC_D_LE,
  72         INET_DIAG_BC_AUTO,
  73         INET_DIAG_BC_S_COND,
  74         INET_DIAG_BC_D_COND,
  75         INET_DIAG_BC_DEV_COND,   /* u32 ifindex */
  76 };
  77
  78 struct inet_diag_hostcond {
  79         __u8    family;
  80         __u8    prefix_len;
  81         int     port;
  82         __be32  addr[0];
  83 };
  84
  85 /* Base info structure. It contains socket identity (addrs/ports/cookie)
  86  * and, alas, the information shown by netstat. */
  87 struct inet_diag_msg {
  88         __u8    idiag_family;
  89         __u8    idiag_state;
  90         __u8    idiag_timer;
  91         __u8    idiag_retrans;
  92
  93         struct inet_diag_sockid id;
  94
  95         __u32   idiag_expires;
  96         __u32   idiag_rqueue;
  97         __u32   idiag_wqueue;
  98         __u32   idiag_uid;
  99         __u32   idiag_inode;
 100 };
 101
 102 /* Extensions */
 103
 104 enum {
 105         INET_DIAG_NONE,
 106         INET_DIAG_MEMINFO,
 107         INET_DIAG_INFO,
 108         INET_DIAG_VEGASINFO,
 109         INET_DIAG_CONG,
 110         INET_DIAG_TOS,
 111         INET_DIAG_TCLASS,
 112         INET_DIAG_SKMEMINFO,
 113         INET_DIAG_SHUTDOWN,
 114         INET_DIAG_DCTCPINFO,
 115         INET_DIAG_PROTOCOL,  /* response attribute only */
 116         INET_DIAG_SKV6ONLY,
 117         INET_DIAG_LOCALS,
 118         INET_DIAG_PEERS,
 119         INET_DIAG_PAD,
 120         __INET_DIAG_MAX,
 121 };
 122
 123 #define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
 124
 125 /* INET_DIAG_MEM */
 126
 127 struct inet_diag_meminfo {
 128         __u32   idiag_rmem;
 129         __u32   idiag_wmem;
 130         __u32   idiag_fmem;
 131         __u32   idiag_tmem;
 132 };
 133
 134 /* INET_DIAG_VEGASINFO */
 135
 136 struct tcpvegas_info {
 137         __u32   tcpv_enabled;
 138         __u32   tcpv_rttcnt;
 139         __u32   tcpv_rtt;
 140         __u32   tcpv_minrtt;
 141 };
 142
 143 /* INET_DIAG_DCTCPINFO */
 144
 145 struct tcp_dctcp_info {
 146         __u16   dctcp_enabled;
 147         __u16   dctcp_ce_state;
 148         __u32   dctcp_alpha;
 149         __u32   dctcp_ab_ecn;
 150         __u32   dctcp_ab_tot;
 151 };
 152
 153 union tcp_cc_info {
 154         struct tcpvegas_info    vegas;
 155         struct tcp_dctcp_info   dctcp;
 156 };
 157 #endif /* _UAPI_INET_DIAG_H_ */