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 };
76 
77 struct inet_diag_hostcond {
78 	__u8	family;
79 	__u8	prefix_len;
80 	int	port;
81 	__be32	addr[0];
82 };
83 
84 /* Base info structure. It contains socket identity (addrs/ports/cookie)
85  * and, alas, the information shown by netstat. */
86 struct inet_diag_msg {
87 	__u8	idiag_family;
88 	__u8	idiag_state;
89 	__u8	idiag_timer;
90 	__u8	idiag_retrans;
91 
92 	struct inet_diag_sockid id;
93 
94 	__u32	idiag_expires;
95 	__u32	idiag_rqueue;
96 	__u32	idiag_wqueue;
97 	__u32	idiag_uid;
98 	__u32	idiag_inode;
99 };
100 
101 /* Extensions */
102 
103 enum {
104 	INET_DIAG_NONE,
105 	INET_DIAG_MEMINFO,
106 	INET_DIAG_INFO,
107 	INET_DIAG_VEGASINFO,
108 	INET_DIAG_CONG,
109 	INET_DIAG_TOS,
110 	INET_DIAG_TCLASS,
111 	INET_DIAG_SKMEMINFO,
112 	INET_DIAG_SHUTDOWN,
113 	INET_DIAG_DCTCPINFO,
114 };
115 
116 #define INET_DIAG_MAX INET_DIAG_DCTCPINFO
117 
118 /* INET_DIAG_MEM */
119 
120 struct inet_diag_meminfo {
121 	__u32	idiag_rmem;
122 	__u32	idiag_wmem;
123 	__u32	idiag_fmem;
124 	__u32	idiag_tmem;
125 };
126 
127 /* INET_DIAG_VEGASINFO */
128 
129 struct tcpvegas_info {
130 	__u32	tcpv_enabled;
131 	__u32	tcpv_rttcnt;
132 	__u32	tcpv_rtt;
133 	__u32	tcpv_minrtt;
134 };
135 
136 /* INET_DIAG_DCTCPINFO */
137 
138 struct tcp_dctcp_info {
139 	__u16	dctcp_enabled;
140 	__u16	dctcp_ce_state;
141 	__u32	dctcp_alpha;
142 	__u32	dctcp_ab_ecn;
143 	__u32	dctcp_ab_tot;
144 };
145 
146 #endif /* _UAPI_INET_DIAG_H_ */
147