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      1 #ifndef _INET_DIAG_H_
      2 #define _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 	INET_DIAG_BC_MARK_COND,
     77 };
     78 
     79 struct inet_diag_hostcond {
     80 	__u8	family;
     81 	__u8	prefix_len;
     82 	int	port;
     83 	__be32	addr[0];
     84 };
     85 
     86 struct inet_diag_markcond {
     87 	__u32 mark;
     88 	__u32 mask;
     89 };
     90 
     91 /* Base info structure. It contains socket identity (addrs/ports/cookie)
     92  * and, alas, the information shown by netstat. */
     93 struct inet_diag_msg {
     94 	__u8	idiag_family;
     95 	__u8	idiag_state;
     96 	__u8	idiag_timer;
     97 	__u8	idiag_retrans;
     98 
     99 	struct inet_diag_sockid id;
    100 
    101 	__u32	idiag_expires;
    102 	__u32	idiag_rqueue;
    103 	__u32	idiag_wqueue;
    104 	__u32	idiag_uid;
    105 	__u32	idiag_inode;
    106 };
    107 
    108 /* Extensions */
    109 
    110 enum {
    111 	INET_DIAG_NONE,
    112 	INET_DIAG_MEMINFO,
    113 	INET_DIAG_INFO,
    114 	INET_DIAG_VEGASINFO,
    115 	INET_DIAG_CONG,
    116 	INET_DIAG_TOS,
    117 	INET_DIAG_TCLASS,
    118 	INET_DIAG_SKMEMINFO,
    119 	INET_DIAG_SHUTDOWN,
    120 	INET_DIAG_DCTCPINFO,
    121 	INET_DIAG_PROTOCOL,  /* response attribute only */
    122 	INET_DIAG_SKV6ONLY,
    123 	INET_DIAG_LOCALS,
    124 	INET_DIAG_PEERS,
    125 	INET_DIAG_PAD,
    126 	INET_DIAG_MARK,
    127 	__INET_DIAG_MAX,
    128 };
    129 
    130 #define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
    131 
    132 /* INET_DIAG_MEM */
    133 
    134 struct inet_diag_meminfo {
    135 	__u32	idiag_rmem;
    136 	__u32	idiag_wmem;
    137 	__u32	idiag_fmem;
    138 	__u32	idiag_tmem;
    139 };
    140 
    141 /* INET_DIAG_VEGASINFO */
    142 
    143 struct tcpvegas_info {
    144 	__u32	tcpv_enabled;
    145 	__u32	tcpv_rttcnt;
    146 	__u32	tcpv_rtt;
    147 	__u32	tcpv_minrtt;
    148 };
    149 
    150 /* INET_DIAG_DCTCPINFO */
    151 
    152 struct tcp_dctcp_info {
    153 	__u16	dctcp_enabled;
    154 	__u16	dctcp_ce_state;
    155 	__u32	dctcp_alpha;
    156 	__u32	dctcp_ab_ecn;
    157 	__u32	dctcp_ab_tot;
    158 };
    159 
    160 union tcp_cc_info {
    161 	struct tcpvegas_info	vegas;
    162 	struct tcp_dctcp_info	dctcp;
    163 };
    164 #endif /* _INET_DIAG_H_ */
    165