1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
#ifndef _UAPI_INET_DIAG_H_
#define _UAPI_INET_DIAG_H_
#include <linux/types.h>
/* Just some random number */
#define TCPDIAG_GETSOCK 18
#define DCCPDIAG_GETSOCK 19
#define INET_DIAG_GETSOCK_MAX 24
/* Socket identity */
struct inet_diag_sockid {
__be16 idiag_sport;
__be16 idiag_dport;
__be32 idiag_src[4];
__be32 idiag_dst[4];
__u32 idiag_if;
__u32 idiag_cookie[2];
#define INET_DIAG_NOCOOKIE (~0U)
};
/* Request structure */
struct inet_diag_req {
__u8 idiag_family; /* Family of addresses. */
__u8 idiag_src_len;
__u8 idiag_dst_len;
__u8 idiag_ext; /* Query extended information */
struct inet_diag_sockid id;
__u32 idiag_states; /* States to dump */
__u32 idiag_dbs; /* Tables to dump (NI) */
};
struct inet_diag_req_v2 {
__u8 sdiag_family;
__u8 sdiag_protocol;
__u8 idiag_ext;
__u8 pad;
__u32 idiag_states;
struct inet_diag_sockid id;
};
/*
* SOCK_RAW sockets require the underlied protocol to be
* additionally specified so we can use @pad member for
* this, but we can't rename it because userspace programs
* still may depend on this name. Instead lets use another
* structure definition as an alias for struct
* @inet_diag_req_v2.
*/
struct inet_diag_req_raw {
__u8 sdiag_family;
__u8 sdiag_protocol;
__u8 idiag_ext;
__u8 sdiag_raw_protocol;
__u32 idiag_states;
struct inet_diag_sockid id;
};
enum {
INET_DIAG_REQ_NONE,
INET_DIAG_REQ_BYTECODE,
};
#define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
/* Bytecode is sequence of 4 byte commands followed by variable arguments.
* All the commands identified by "code" are conditional jumps forward:
* to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
* length of the command and its arguments.
*/
struct inet_diag_bc_op {
unsigned char code;
unsigned char yes;
unsigned short no;
};
enum {
INET_DIAG_BC_NOP,
INET_DIAG_BC_JMP,
INET_DIAG_BC_S_GE,
INET_DIAG_BC_S_LE,
INET_DIAG_BC_D_GE,
INET_DIAG_BC_D_LE,
INET_DIAG_BC_AUTO,
INET_DIAG_BC_S_COND,
INET_DIAG_BC_D_COND,
INET_DIAG_BC_DEV_COND, /* u32 ifindex */
INET_DIAG_BC_MARK_COND,
};
struct inet_diag_hostcond {
__u8 family;
__u8 prefix_len;
int port;
__be32 addr[0];
};
struct inet_diag_markcond {
__u32 mark;
__u32 mask;
};
/* Base info structure. It contains socket identity (addrs/ports/cookie)
* and, alas, the information shown by netstat. */
struct inet_diag_msg {
__u8 idiag_family;
__u8 idiag_state;
__u8 idiag_timer;
__u8 idiag_retrans;
struct inet_diag_sockid id;
__u32 idiag_expires;
__u32 idiag_rqueue;
__u32 idiag_wqueue;
__u32 idiag_uid;
__u32 idiag_inode;
};
/* Extensions */
enum {
INET_DIAG_NONE,
INET_DIAG_MEMINFO,
INET_DIAG_INFO,
INET_DIAG_VEGASINFO,
INET_DIAG_CONG,
INET_DIAG_TOS,
INET_DIAG_TCLASS,
INET_DIAG_SKMEMINFO,
INET_DIAG_SHUTDOWN,
INET_DIAG_DCTCPINFO,
INET_DIAG_PROTOCOL, /* response attribute only */
INET_DIAG_SKV6ONLY,
INET_DIAG_LOCALS,
INET_DIAG_PEERS,
INET_DIAG_PAD,
INET_DIAG_MARK,
INET_DIAG_BBRINFO,
__INET_DIAG_MAX,
};
#define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
/* INET_DIAG_MEM */
struct inet_diag_meminfo {
__u32 idiag_rmem;
__u32 idiag_wmem;
__u32 idiag_fmem;
__u32 idiag_tmem;
};
/* INET_DIAG_VEGASINFO */
struct tcpvegas_info {
__u32 tcpv_enabled;
__u32 tcpv_rttcnt;
__u32 tcpv_rtt;
__u32 tcpv_minrtt;
};
/* INET_DIAG_DCTCPINFO */
struct tcp_dctcp_info {
__u16 dctcp_enabled;
__u16 dctcp_ce_state;
__u32 dctcp_alpha;
__u32 dctcp_ab_ecn;
__u32 dctcp_ab_tot;
};
/* INET_DIAG_BBRINFO */
struct tcp_bbr_info {
/* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */
__u32 bbr_bw_lo; /* lower 32 bits of bw */
__u32 bbr_bw_hi; /* upper 32 bits of bw */
__u32 bbr_min_rtt; /* min-filtered RTT in uSec */
__u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */
__u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */
};
union tcp_cc_info {
struct tcpvegas_info vegas;
struct tcp_dctcp_info dctcp;
struct tcp_bbr_info bbr;
};
#endif /* _UAPI_INET_DIAG_H_ */
|
