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      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 
    122 #endif /* _INET_DIAG_H_ */
    123