LXR iproute2/include/uapi/linux/inet

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _INET_DIAG_H_
   3#define _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_PROTOCOL,
  69        __INET_DIAG_REQ_MAX,
  70};
  71
  72#define INET_DIAG_REQ_MAX (__INET_DIAG_REQ_MAX - 1)
  73
  74/* Bytecode is sequence of 4 byte commands followed by variable arguments.
  75 * All the commands identified by "code" are conditional jumps forward:
  76 * to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
  77 * length of the command and its arguments.
  78 */
  79 
  80struct inet_diag_bc_op {
  81        unsigned char   code;
  82        unsigned char   yes;
  83        unsigned short  no;
  84};
  85
  86enum {
  87        INET_DIAG_BC_NOP,
  88        INET_DIAG_BC_JMP,
  89        INET_DIAG_BC_S_GE,
  90        INET_DIAG_BC_S_LE,
  91        INET_DIAG_BC_D_GE,
  92        INET_DIAG_BC_D_LE,
  93        INET_DIAG_BC_AUTO,
  94        INET_DIAG_BC_S_COND,
  95        INET_DIAG_BC_D_COND,
  96        INET_DIAG_BC_DEV_COND,   /* u32 ifindex */
  97        INET_DIAG_BC_MARK_COND,
  98        INET_DIAG_BC_S_EQ,
  99        INET_DIAG_BC_D_EQ,
 100        INET_DIAG_BC_CGROUP_COND,   /* u64 cgroup v2 ID */
 101};
 102
 103struct inet_diag_hostcond {
 104        __u8    family;
 105        __u8    prefix_len;
 106        int     port;
 107        __be32  addr[0];
 108};
 109
 110struct inet_diag_markcond {
 111        __u32 mark;
 112        __u32 mask;
 113};
 114
 115/* Base info structure. It contains socket identity (addrs/ports/cookie)
 116 * and, alas, the information shown by netstat. */
 117struct inet_diag_msg {
 118        __u8    idiag_family;
 119        __u8    idiag_state;
 120        __u8    idiag_timer;
 121        __u8    idiag_retrans;
 122
 123        struct inet_diag_sockid id;
 124
 125        __u32   idiag_expires;
 126        __u32   idiag_rqueue;
 127        __u32   idiag_wqueue;
 128        __u32   idiag_uid;
 129        __u32   idiag_inode;
 130};
 131
 132/* Extensions */
 133
 134enum {
 135        INET_DIAG_NONE,
 136        INET_DIAG_MEMINFO,
 137        INET_DIAG_INFO,
 138        INET_DIAG_VEGASINFO,
 139        INET_DIAG_CONG,
 140        INET_DIAG_TOS,
 141        INET_DIAG_TCLASS,
 142        INET_DIAG_SKMEMINFO,
 143        INET_DIAG_SHUTDOWN,
 144
 145        /*
 146         * Next extenstions cannot be requested in struct inet_diag_req_v2:
 147         * its field idiag_ext has only 8 bits.
 148         */
 149
 150        INET_DIAG_DCTCPINFO,    /* request as INET_DIAG_VEGASINFO */
 151        INET_DIAG_PROTOCOL,     /* response attribute only */
 152        INET_DIAG_SKV6ONLY,
 153        INET_DIAG_LOCALS,
 154        INET_DIAG_PEERS,
 155        INET_DIAG_PAD,
 156        INET_DIAG_MARK,         /* only with CAP_NET_ADMIN */
 157        INET_DIAG_BBRINFO,      /* request as INET_DIAG_VEGASINFO */
 158        INET_DIAG_CLASS_ID,     /* request as INET_DIAG_TCLASS */
 159        INET_DIAG_MD5SIG,
 160        INET_DIAG_ULP_INFO,
 161        INET_DIAG_SK_BPF_STORAGES,
 162        INET_DIAG_CGROUP_ID,
 163        INET_DIAG_SOCKOPT,
 164        __INET_DIAG_MAX,
 165};
 166
 167#define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
 168
 169enum {
 170        INET_ULP_INFO_UNSPEC,
 171        INET_ULP_INFO_NAME,
 172        INET_ULP_INFO_TLS,
 173        INET_ULP_INFO_MPTCP,
 174        __INET_ULP_INFO_MAX,
 175};
 176#define INET_ULP_INFO_MAX (__INET_ULP_INFO_MAX - 1)
 177
 178/* INET_DIAG_MEM */
 179
 180struct inet_diag_meminfo {
 181        __u32   idiag_rmem;
 182        __u32   idiag_wmem;
 183        __u32   idiag_fmem;
 184        __u32   idiag_tmem;
 185};
 186
 187/* INET_DIAG_SOCKOPT */
 188
 189struct inet_diag_sockopt {
 190        __u8    recverr:1,
 191                is_icsk:1,
 192                freebind:1,
 193                hdrincl:1,
 194                mc_loop:1,
 195                transparent:1,
 196                mc_all:1,
 197                nodefrag:1;
 198        __u8    bind_address_no_port:1,
 199                recverr_rfc4884:1,
 200                defer_connect:1,
 201                unused:5;
 202};
 203
 204/* INET_DIAG_VEGASINFO */
 205
 206struct tcpvegas_info {
 207        __u32   tcpv_enabled;
 208        __u32   tcpv_rttcnt;
 209        __u32   tcpv_rtt;
 210        __u32   tcpv_minrtt;
 211};
 212
 213/* INET_DIAG_DCTCPINFO */
 214
 215struct tcp_dctcp_info {
 216        __u16   dctcp_enabled;
 217        __u16   dctcp_ce_state;
 218        __u32   dctcp_alpha;
 219        __u32   dctcp_ab_ecn;
 220        __u32   dctcp_ab_tot;
 221};
 222
 223/* INET_DIAG_BBRINFO */
 224
 225struct tcp_bbr_info {
 226        /* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */
 227        __u32   bbr_bw_lo;              /* lower 32 bits of bw */
 228        __u32   bbr_bw_hi;              /* upper 32 bits of bw */
 229        __u32   bbr_min_rtt;            /* min-filtered RTT in uSec */
 230        __u32   bbr_pacing_gain;        /* pacing gain shifted left 8 bits */
 231        __u32   bbr_cwnd_gain;          /* cwnd gain shifted left 8 bits */
 232};
 233
 234union tcp_cc_info {
 235        struct tcpvegas_info    vegas;
 236        struct tcp_dctcp_info   dctcp;
 237        struct tcp_bbr_info     bbr;
 238};
 239#endif /* _INET_DIAG_H_ */
 240