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      1 #ifndef _INET_DIAG_H_
      2 #define _INET_DIAG_H_ 1
      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 enum {
     38 	INET_DIAG_REQ_NONE,
     39 	INET_DIAG_REQ_BYTECODE,
     40 };
     41 
     42 #define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
     43 
     44 /* Bytecode is sequence of 4 byte commands followed by variable arguments.
     45  * All the commands identified by "code" are conditional jumps forward:
     46  * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
     47  * length of the command and its arguments.
     48  */
     49 
     50 struct inet_diag_bc_op {
     51 	unsigned char	code;
     52 	unsigned char	yes;
     53 	unsigned short	no;
     54 };
     55 
     56 enum {
     57 	INET_DIAG_BC_NOP,
     58 	INET_DIAG_BC_JMP,
     59 	INET_DIAG_BC_S_GE,
     60 	INET_DIAG_BC_S_LE,
     61 	INET_DIAG_BC_D_GE,
     62 	INET_DIAG_BC_D_LE,
     63 	INET_DIAG_BC_AUTO,
     64 	INET_DIAG_BC_S_COND,
     65 	INET_DIAG_BC_D_COND,
     66 };
     67 
     68 struct inet_diag_hostcond {
     69 	__u8	family;
     70 	__u8	prefix_len;
     71 	int	port;
     72 	__be32	addr[0];
     73 };
     74 
     75 /* Base info structure. It contains socket identity (addrs/ports/cookie)
     76  * and, alas, the information shown by netstat. */
     77 struct inet_diag_msg {
     78 	__u8	idiag_family;
     79 	__u8	idiag_state;
     80 	__u8	idiag_timer;
     81 	__u8	idiag_retrans;
     82 
     83 	struct inet_diag_sockid id;
     84 
     85 	__u32	idiag_expires;
     86 	__u32	idiag_rqueue;
     87 	__u32	idiag_wqueue;
     88 	__u32	idiag_uid;
     89 	__u32	idiag_inode;
     90 };
     91 
     92 /* Extensions */
     93 
     94 enum {
     95 	INET_DIAG_NONE,
     96 	INET_DIAG_MEMINFO,
     97 	INET_DIAG_INFO,
     98 	INET_DIAG_VEGASINFO,
     99 	INET_DIAG_CONG,
    100 };
    101 
    102 #define INET_DIAG_MAX INET_DIAG_CONG
    103 
    104 
    105 /* INET_DIAG_MEM */
    106 
    107 struct inet_diag_meminfo {
    108 	__u32	idiag_rmem;
    109 	__u32	idiag_wmem;
    110 	__u32	idiag_fmem;
    111 	__u32	idiag_tmem;
    112 };
    113 
    114 /* INET_DIAG_VEGASINFO */
    115 
    116 struct tcpvegas_info {
    117 	__u32	tcpv_enabled;
    118 	__u32	tcpv_rttcnt;
    119 	__u32	tcpv_rtt;
    120 	__u32	tcpv_minrtt;
    121 };
    122 
    123 
    124 #endif /* _INET_DIAG_H_ */
    125