root/include/uapi/linux/inet_diag.h

INCLUDED FROM

   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 */
  14 struct 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 
  26 struct 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 
  38 struct 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  */
  55 struct 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 
  64 enum {
  65         INET_DIAG_REQ_NONE,
  66         INET_DIAG_REQ_BYTECODE,
  67 };
  68 
  69 #define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
  70 
  71 /* Bytecode is sequence of 4 byte commands followed by variable arguments.
  72  * All the commands identified by "code" are conditional jumps forward:
  73  * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
  74  * length of the command and its arguments.
  75  */
  76  
  77 struct inet_diag_bc_op {
  78         unsigned char   code;
  79         unsigned char   yes;
  80         unsigned short  no;
  81 };
  82 
  83 enum {
  84         INET_DIAG_BC_NOP,
  85         INET_DIAG_BC_JMP,
  86         INET_DIAG_BC_S_GE,
  87         INET_DIAG_BC_S_LE,
  88         INET_DIAG_BC_D_GE,
  89         INET_DIAG_BC_D_LE,
  90         INET_DIAG_BC_AUTO,
  91         INET_DIAG_BC_S_COND,
  92         INET_DIAG_BC_D_COND,
  93         INET_DIAG_BC_DEV_COND,   /* u32 ifindex */
  94         INET_DIAG_BC_MARK_COND,
  95         INET_DIAG_BC_S_EQ,
  96         INET_DIAG_BC_D_EQ,
  97 };
  98 
  99 struct inet_diag_hostcond {
 100         __u8    family;
 101         __u8    prefix_len;
 102         int     port;
 103         __be32  addr[0];
 104 };
 105 
 106 struct inet_diag_markcond {
 107         __u32 mark;
 108         __u32 mask;
 109 };
 110 
 111 /* Base info structure. It contains socket identity (addrs/ports/cookie)
 112  * and, alas, the information shown by netstat. */
 113 struct inet_diag_msg {
 114         __u8    idiag_family;
 115         __u8    idiag_state;
 116         __u8    idiag_timer;
 117         __u8    idiag_retrans;
 118 
 119         struct inet_diag_sockid id;
 120 
 121         __u32   idiag_expires;
 122         __u32   idiag_rqueue;
 123         __u32   idiag_wqueue;
 124         __u32   idiag_uid;
 125         __u32   idiag_inode;
 126 };
 127 
 128 /* Extensions */
 129 
 130 enum {
 131         INET_DIAG_NONE,
 132         INET_DIAG_MEMINFO,
 133         INET_DIAG_INFO,
 134         INET_DIAG_VEGASINFO,
 135         INET_DIAG_CONG,
 136         INET_DIAG_TOS,
 137         INET_DIAG_TCLASS,
 138         INET_DIAG_SKMEMINFO,
 139         INET_DIAG_SHUTDOWN,
 140 
 141         /*
 142          * Next extenstions cannot be requested in struct inet_diag_req_v2:
 143          * its field idiag_ext has only 8 bits.
 144          */
 145 
 146         INET_DIAG_DCTCPINFO,    /* request as INET_DIAG_VEGASINFO */
 147         INET_DIAG_PROTOCOL,     /* response attribute only */
 148         INET_DIAG_SKV6ONLY,
 149         INET_DIAG_LOCALS,
 150         INET_DIAG_PEERS,
 151         INET_DIAG_PAD,
 152         INET_DIAG_MARK,         /* only with CAP_NET_ADMIN */
 153         INET_DIAG_BBRINFO,      /* request as INET_DIAG_VEGASINFO */
 154         INET_DIAG_CLASS_ID,     /* request as INET_DIAG_TCLASS */
 155         INET_DIAG_MD5SIG,
 156         INET_DIAG_ULP_INFO,
 157         __INET_DIAG_MAX,
 158 };
 159 
 160 #define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
 161 
 162 enum {
 163         INET_ULP_INFO_UNSPEC,
 164         INET_ULP_INFO_NAME,
 165         INET_ULP_INFO_TLS,
 166         __INET_ULP_INFO_MAX,
 167 };
 168 #define INET_ULP_INFO_MAX (__INET_ULP_INFO_MAX - 1)
 169 
 170 /* INET_DIAG_MEM */
 171 
 172 struct inet_diag_meminfo {
 173         __u32   idiag_rmem;
 174         __u32   idiag_wmem;
 175         __u32   idiag_fmem;
 176         __u32   idiag_tmem;
 177 };
 178 
 179 /* INET_DIAG_VEGASINFO */
 180 
 181 struct tcpvegas_info {
 182         __u32   tcpv_enabled;
 183         __u32   tcpv_rttcnt;
 184         __u32   tcpv_rtt;
 185         __u32   tcpv_minrtt;
 186 };
 187 
 188 /* INET_DIAG_DCTCPINFO */
 189 
 190 struct tcp_dctcp_info {
 191         __u16   dctcp_enabled;
 192         __u16   dctcp_ce_state;
 193         __u32   dctcp_alpha;
 194         __u32   dctcp_ab_ecn;
 195         __u32   dctcp_ab_tot;
 196 };
 197 
 198 /* INET_DIAG_BBRINFO */
 199 
 200 struct tcp_bbr_info {
 201         /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */
 202         __u32   bbr_bw_lo;              /* lower 32 bits of bw */
 203         __u32   bbr_bw_hi;              /* upper 32 bits of bw */
 204         __u32   bbr_min_rtt;            /* min-filtered RTT in uSec */
 205         __u32   bbr_pacing_gain;        /* pacing gain shifted left 8 bits */
 206         __u32   bbr_cwnd_gain;          /* cwnd gain shifted left 8 bits */
 207 };
 208 
 209 union tcp_cc_info {
 210         struct tcpvegas_info    vegas;
 211         struct tcp_dctcp_info   dctcp;
 212         struct tcp_bbr_info     bbr;
 213 };
 214 #endif /* _UAPI_INET_DIAG_H_ */