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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_INET_DIAG_H_
3#define _UAPI_INET_DIAG_H_
4
5#include <linux/types.h>
6
7/* Just some random number */
8#define TCPDIAG_GETSOCK 18
9#define DCCPDIAG_GETSOCK 19
10
11#define INET_DIAG_GETSOCK_MAX 24
12
13/* Socket identity */
14struct inet_diag_sockid {
15 __be16 idiag_sport;
16 __be16 idiag_dport;
17 __be32 idiag_src[4];
18 __be32 idiag_dst[4];
19 __u32 idiag_if;
20 __u32 idiag_cookie[2];
21#define INET_DIAG_NOCOOKIE (~0U)
22};
23
24/* Request structure */
25
26struct inet_diag_req {
27 __u8 idiag_family; /* Family of addresses. */
28 __u8 idiag_src_len;
29 __u8 idiag_dst_len;
30 __u8 idiag_ext; /* Query extended information */
31
32 struct inet_diag_sockid id;
33
34 __u32 idiag_states; /* States to dump */
35 __u32 idiag_dbs; /* Tables to dump (NI) */
36};
37
38struct inet_diag_req_v2 {
39 __u8 sdiag_family;
40 __u8 sdiag_protocol;
41 __u8 idiag_ext;
42 __u8 pad;
43 __u32 idiag_states;
44 struct inet_diag_sockid id;
45};
46
47/*
48 * SOCK_RAW sockets require the underlied protocol to be
49 * additionally specified so we can use @pad member for
50 * this, but we can't rename it because userspace programs
51 * still may depend on this name. Instead lets use another
52 * structure definition as an alias for struct
53 * @inet_diag_req_v2.
54 */
55struct inet_diag_req_raw {
56 __u8 sdiag_family;
57 __u8 sdiag_protocol;
58 __u8 idiag_ext;
59 __u8 sdiag_raw_protocol;
60 __u32 idiag_states;
61 struct inet_diag_sockid id;
62};
63
64enum {
65 INET_DIAG_REQ_NONE,
66 INET_DIAG_REQ_BYTECODE,
67 INET_DIAG_REQ_SK_BPF_STORAGES,
68 __INET_DIAG_REQ_MAX,
69};
70
71#define INET_DIAG_REQ_MAX (__INET_DIAG_REQ_MAX - 1)
72
73/* Bytecode is sequence of 4 byte commands followed by variable arguments.
74 * All the commands identified by "code" are conditional jumps forward:
75 * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
76 * length of the command and its arguments.
77 */
78
79struct inet_diag_bc_op {
80 unsigned char code;
81 unsigned char yes;
82 unsigned short no;
83};
84
85enum {
86 INET_DIAG_BC_NOP,
87 INET_DIAG_BC_JMP,
88 INET_DIAG_BC_S_GE,
89 INET_DIAG_BC_S_LE,
90 INET_DIAG_BC_D_GE,
91 INET_DIAG_BC_D_LE,
92 INET_DIAG_BC_AUTO,
93 INET_DIAG_BC_S_COND,
94 INET_DIAG_BC_D_COND,
95 INET_DIAG_BC_DEV_COND, /* u32 ifindex */
96 INET_DIAG_BC_MARK_COND,
97 INET_DIAG_BC_S_EQ,
98 INET_DIAG_BC_D_EQ,
99};
100
101struct inet_diag_hostcond {
102 __u8 family;
103 __u8 prefix_len;
104 int port;
105 __be32 addr[0];
106};
107
108struct inet_diag_markcond {
109 __u32 mark;
110 __u32 mask;
111};
112
113/* Base info structure. It contains socket identity (addrs/ports/cookie)
114 * and, alas, the information shown by netstat. */
115struct inet_diag_msg {
116 __u8 idiag_family;
117 __u8 idiag_state;
118 __u8 idiag_timer;
119 __u8 idiag_retrans;
120
121 struct inet_diag_sockid id;
122
123 __u32 idiag_expires;
124 __u32 idiag_rqueue;
125 __u32 idiag_wqueue;
126 __u32 idiag_uid;
127 __u32 idiag_inode;
128};
129
130/* Extensions */
131
132enum {
133 INET_DIAG_NONE,
134 INET_DIAG_MEMINFO,
135 INET_DIAG_INFO,
136 INET_DIAG_VEGASINFO,
137 INET_DIAG_CONG,
138 INET_DIAG_TOS,
139 INET_DIAG_TCLASS,
140 INET_DIAG_SKMEMINFO,
141 INET_DIAG_SHUTDOWN,
142
143 /*
144 * Next extenstions cannot be requested in struct inet_diag_req_v2:
145 * its field idiag_ext has only 8 bits.
146 */
147
148 INET_DIAG_DCTCPINFO, /* request as INET_DIAG_VEGASINFO */
149 INET_DIAG_PROTOCOL, /* response attribute only */
150 INET_DIAG_SKV6ONLY,
151 INET_DIAG_LOCALS,
152 INET_DIAG_PEERS,
153 INET_DIAG_PAD,
154 INET_DIAG_MARK, /* only with CAP_NET_ADMIN */
155 INET_DIAG_BBRINFO, /* request as INET_DIAG_VEGASINFO */
156 INET_DIAG_CLASS_ID, /* request as INET_DIAG_TCLASS */
157 INET_DIAG_MD5SIG,
158 INET_DIAG_ULP_INFO,
159 INET_DIAG_SK_BPF_STORAGES,
160 __INET_DIAG_MAX,
161};
162
163#define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
164
165enum {
166 INET_ULP_INFO_UNSPEC,
167 INET_ULP_INFO_NAME,
168 INET_ULP_INFO_TLS,
169 INET_ULP_INFO_MPTCP,
170 __INET_ULP_INFO_MAX,
171};
172#define INET_ULP_INFO_MAX (__INET_ULP_INFO_MAX - 1)
173
174/* INET_DIAG_MEM */
175
176struct inet_diag_meminfo {
177 __u32 idiag_rmem;
178 __u32 idiag_wmem;
179 __u32 idiag_fmem;
180 __u32 idiag_tmem;
181};
182
183/* INET_DIAG_VEGASINFO */
184
185struct tcpvegas_info {
186 __u32 tcpv_enabled;
187 __u32 tcpv_rttcnt;
188 __u32 tcpv_rtt;
189 __u32 tcpv_minrtt;
190};
191
192/* INET_DIAG_DCTCPINFO */
193
194struct tcp_dctcp_info {
195 __u16 dctcp_enabled;
196 __u16 dctcp_ce_state;
197 __u32 dctcp_alpha;
198 __u32 dctcp_ab_ecn;
199 __u32 dctcp_ab_tot;
200};
201
202/* INET_DIAG_BBRINFO */
203
204struct tcp_bbr_info {
205 /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */
206 __u32 bbr_bw_lo; /* lower 32 bits of bw */
207 __u32 bbr_bw_hi; /* upper 32 bits of bw */
208 __u32 bbr_min_rtt; /* min-filtered RTT in uSec */
209 __u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */
210 __u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */
211};
212
213union tcp_cc_info {
214 struct tcpvegas_info vegas;
215 struct tcp_dctcp_info dctcp;
216 struct tcp_bbr_info bbr;
217};
218#endif /* _UAPI_INET_DIAG_H_ */