206 lines
4.3 KiB
C
206 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _INET_DIAG_H_
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#define _INET_DIAG_H_
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#include <linux/types.h>
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/* Just some random number */
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#define TCPDIAG_GETSOCK 18
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#define DCCPDIAG_GETSOCK 19
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#define INET_DIAG_GETSOCK_MAX 24
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/* Socket identity */
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struct inet_diag_sockid {
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__be16 idiag_sport;
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__be16 idiag_dport;
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__be32 idiag_src[4];
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__be32 idiag_dst[4];
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__u32 idiag_if;
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__u32 idiag_cookie[2];
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#define INET_DIAG_NOCOOKIE (~0U)
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};
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/* Request structure */
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struct inet_diag_req {
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__u8 idiag_family; /* Family of addresses. */
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__u8 idiag_src_len;
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__u8 idiag_dst_len;
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__u8 idiag_ext; /* Query extended information */
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struct inet_diag_sockid id;
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__u32 idiag_states; /* States to dump */
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__u32 idiag_dbs; /* Tables to dump (NI) */
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};
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struct inet_diag_req_v2 {
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__u8 sdiag_family;
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__u8 sdiag_protocol;
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__u8 idiag_ext;
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__u8 pad;
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__u32 idiag_states;
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struct inet_diag_sockid id;
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};
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/*
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* SOCK_RAW sockets require the underlied protocol to be
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* additionally specified so we can use @pad member for
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* this, but we can't rename it because userspace programs
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* still may depend on this name. Instead lets use another
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* structure definition as an alias for struct
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* @inet_diag_req_v2.
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*/
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struct inet_diag_req_raw {
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__u8 sdiag_family;
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__u8 sdiag_protocol;
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__u8 idiag_ext;
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__u8 sdiag_raw_protocol;
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__u32 idiag_states;
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struct inet_diag_sockid id;
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};
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enum {
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INET_DIAG_REQ_NONE,
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INET_DIAG_REQ_BYTECODE,
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};
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#define INET_DIAG_REQ_MAX INET_DIAG_REQ_BYTECODE
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/* Bytecode is sequence of 4 byte commands followed by variable arguments.
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* All the commands identified by "code" are conditional jumps forward:
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* to offset cc+"yes" or to offset cc+"no". "yes" is supposed to be
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* length of the command and its arguments.
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*/
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struct inet_diag_bc_op {
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unsigned char code;
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unsigned char yes;
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unsigned short no;
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};
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enum {
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INET_DIAG_BC_NOP,
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INET_DIAG_BC_JMP,
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INET_DIAG_BC_S_GE,
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INET_DIAG_BC_S_LE,
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INET_DIAG_BC_D_GE,
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INET_DIAG_BC_D_LE,
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INET_DIAG_BC_AUTO,
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INET_DIAG_BC_S_COND,
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INET_DIAG_BC_D_COND,
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INET_DIAG_BC_DEV_COND, /* u32 ifindex */
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INET_DIAG_BC_MARK_COND,
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INET_DIAG_BC_S_EQ,
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INET_DIAG_BC_D_EQ,
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};
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struct inet_diag_hostcond {
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__u8 family;
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__u8 prefix_len;
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int port;
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__be32 addr[0];
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};
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struct inet_diag_markcond {
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__u32 mark;
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__u32 mask;
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};
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/* Base info structure. It contains socket identity (addrs/ports/cookie)
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* and, alas, the information shown by netstat. */
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struct inet_diag_msg {
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__u8 idiag_family;
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__u8 idiag_state;
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__u8 idiag_timer;
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__u8 idiag_retrans;
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struct inet_diag_sockid id;
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__u32 idiag_expires;
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__u32 idiag_rqueue;
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__u32 idiag_wqueue;
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__u32 idiag_uid;
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__u32 idiag_inode;
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};
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/* Extensions */
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enum {
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INET_DIAG_NONE,
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INET_DIAG_MEMINFO,
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INET_DIAG_INFO,
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INET_DIAG_VEGASINFO,
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INET_DIAG_CONG,
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INET_DIAG_TOS,
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INET_DIAG_TCLASS,
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INET_DIAG_SKMEMINFO,
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INET_DIAG_SHUTDOWN,
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/*
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* Next extenstions cannot be requested in struct inet_diag_req_v2:
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* its field idiag_ext has only 8 bits.
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*/
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INET_DIAG_DCTCPINFO, /* request as INET_DIAG_VEGASINFO */
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INET_DIAG_PROTOCOL, /* response attribute only */
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INET_DIAG_SKV6ONLY,
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INET_DIAG_LOCALS,
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INET_DIAG_PEERS,
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INET_DIAG_PAD,
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INET_DIAG_MARK, /* only with CAP_NET_ADMIN */
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INET_DIAG_BBRINFO, /* request as INET_DIAG_VEGASINFO */
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INET_DIAG_CLASS_ID, /* request as INET_DIAG_TCLASS */
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INET_DIAG_MD5SIG,
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__INET_DIAG_MAX,
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};
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#define INET_DIAG_MAX (__INET_DIAG_MAX - 1)
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/* INET_DIAG_MEM */
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struct inet_diag_meminfo {
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__u32 idiag_rmem;
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__u32 idiag_wmem;
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__u32 idiag_fmem;
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__u32 idiag_tmem;
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};
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/* INET_DIAG_VEGASINFO */
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struct tcpvegas_info {
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__u32 tcpv_enabled;
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__u32 tcpv_rttcnt;
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__u32 tcpv_rtt;
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__u32 tcpv_minrtt;
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};
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/* INET_DIAG_DCTCPINFO */
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struct tcp_dctcp_info {
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__u16 dctcp_enabled;
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__u16 dctcp_ce_state;
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__u32 dctcp_alpha;
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__u32 dctcp_ab_ecn;
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__u32 dctcp_ab_tot;
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};
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/* INET_DIAG_BBRINFO */
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struct tcp_bbr_info {
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/* u64 bw: max-filtered BW (app throughput) estimate in Byte per sec: */
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__u32 bbr_bw_lo; /* lower 32 bits of bw */
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__u32 bbr_bw_hi; /* upper 32 bits of bw */
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__u32 bbr_min_rtt; /* min-filtered RTT in uSec */
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__u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */
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__u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */
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};
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union tcp_cc_info {
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struct tcpvegas_info vegas;
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struct tcp_dctcp_info dctcp;
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struct tcp_bbr_info bbr;
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};
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#endif /* _INET_DIAG_H_ */
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