inet_diag.h revision ead2ba7008c9db02954dae6f180aed8770a0560d 
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 */
11struct 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
23struct 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
35enum {
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
48struct inet_diag_bc_op {
49	unsigned char	code;
50	unsigned char	yes;
51	unsigned short	no;
52};
53
54enum {
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
66struct 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. */
75struct 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
92enum {
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
105struct 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
114struct 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