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📁 ..
📄 a.out.h(7.15 KB)
📄 acct.h(3.58 KB)
📄 adb.h(1.05 KB)
📄 adfs_fs.h(873 B)
📄 affs_hardblocks.h(1.45 KB)
📄 agpgart.h(3.83 KB)
📄 aio_abi.h(3.1 KB)
📄 apm_bios.h(3.46 KB)
📄 arcfb.h(150 B)
📄 atalk.h(960 B)
📄 atm.h(7.64 KB)
📄 atm_eni.h(585 B)
📄 atm_he.h(343 B)
📄 atm_idt77105.h(892 B)
📄 atm_nicstar.h(1.19 KB)
📄 atm_tcp.h(1.52 KB)
📄 atm_zatm.h(1.57 KB)
📄 atmapi.h(889 B)
📄 atmarp.h(1.2 KB)
📄 atmbr2684.h(3.13 KB)
📄 atmclip.h(513 B)
📄 atmdev.h(7.44 KB)
📄 atmioc.h(1.55 KB)
📄 atmlec.h(2.26 KB)
📄 atmmpc.h(4.07 KB)
📄 atmppp.h(576 B)
📄 atmsap.h(4.79 KB)
📄 atmsvc.h(1.75 KB)
📄 audit.h(18.03 KB)
📄 auto_fs.h(2.53 KB)
📄 auto_fs4.h(4.3 KB)
📄 auxvec.h(1.4 KB)
📄 ax25.h(2.7 KB)
📄 b1lli.h(1.62 KB)
📄 baycom.h(820 B)
📄 bfs_fs.h(1.79 KB)
📄 binfmts.h(565 B)
📄 blkpg.h(1.53 KB)
📄 blktrace_api.h(4.38 KB)
📄 bpf.h(22.04 KB)
📄 bpf_common.h(1.2 KB)
📄 bpf_perf_event.h(453 B)
📄 bpqether.h(952 B)
📄 bsg.h(2.37 KB)
📄 bt-bmc.h(508 B)
📄 btrfs.h(25.07 KB)
📁 byteorder
📁 caif
📁 can
📄 can.h(5.46 KB)
📄 capability.h(11.25 KB)
📄 capi.h(2.99 KB)
📄 cciss_defs.h(3.14 KB)
📄 cciss_ioctl.h(2.63 KB)
📄 cdrom.h(28.12 KB)
📄 cgroupstats.h(2.1 KB)
📄 chio.h(5.16 KB)
📄 cm4000_cs.h(1.68 KB)
📄 cn_proc.h(3.19 KB)
📄 coda.h(17.09 KB)
📄 coda_psdev.h(720 B)
📄 coff.h(12.12 KB)
📄 connector.h(2.14 KB)
📄 const.h(673 B)
📄 cramfs_fs.h(2.68 KB)
📄 cuda.h(842 B)
📄 cyclades.h(16.65 KB)
📄 cycx_cfm.h(2.86 KB)
📄 dcbnl.h(24.5 KB)
📄 dccp.h(6.22 KB)
📄 devlink.h(9.66 KB)
📄 dlm.h(2.43 KB)
📄 dlm_device.h(2.42 KB)
📄 dlm_netlink.h(1.04 KB)
📄 dlm_plock.h(831 B)
📄 dlmconstants.h(4.9 KB)
📄 dm-ioctl.h(10.55 KB)
📄 dm-log-userspace.h(14.82 KB)
📄 dn.h(4.42 KB)
📄 dqblk_xfs.h(8.72 KB)
📁 dvb
📄 edd.h(5.41 KB)
📄 efs_fs_sb.h(2.11 KB)
📄 elf-em.h(1.83 KB)
📄 elf-fdpic.h(1.04 KB)
📄 elf.h(12.69 KB)
📄 elfcore.h(2.86 KB)
📄 errno.h(23 B)
📄 errqueue.h(1.1 KB)
📄 ethtool.h(71.11 KB)
📄 eventpoll.h(1.76 KB)
📄 fadvise.h(779 B)
📄 falloc.h(2.72 KB)
📄 fanotify.h(3.52 KB)
📄 fb.h(16 KB)
📄 fcntl.h(2.16 KB)
📄 fd.h(11.31 KB)
📄 fdreg.h(5.23 KB)
📄 fib_rules.h(1.58 KB)
📄 fiemap.h(2.65 KB)
📄 filter.h(1.99 KB)
📄 firewire-cdev.h(42.86 KB)
📄 firewire-constants.h(3.16 KB)
📄 flat.h(2.04 KB)
📄 fou.h(617 B)
📄 fs.h(8.47 KB)
📄 fsl_hypervisor.h(7.05 KB)
📄 fuse.h(16.41 KB)
📄 futex.h(4.81 KB)
📄 gameport.h(834 B)
📄 gen_stats.h(1.5 KB)
📄 genetlink.h(1.82 KB)
📄 gfs2_ondisk.h(12 KB)
📄 gigaset_dev.h(1.35 KB)
📁 hdlc
📄 hdlc.h(574 B)
📄 hdlcdrv.h(2.78 KB)
📄 hdreg.h(22.11 KB)
📄 hid.h(1.79 KB)
📄 hiddev.h(6.13 KB)
📄 hidraw.h(1.41 KB)
📄 hpet.h(680 B)
📁 hsi
📄 hw_breakpoint.h(679 B)
📄 hyperv.h(10.22 KB)
📄 hysdn_if.h(1.29 KB)
📄 i2c-dev.h(2.37 KB)
📄 i2c.h(6.66 KB)
📄 i2o-dev.h(11.22 KB)
📄 i8k.h(1.4 KB)
📄 icmp.h(2.82 KB)
📄 icmpv6.h(3.82 KB)
📄 if.h(9.26 KB)
📄 if_addr.h(1.7 KB)
📄 if_addrlabel.h(658 B)
📄 if_alg.h(816 B)
📄 if_arcnet.h(3.63 KB)
📄 if_arp.h(6.3 KB)
📄 if_bonding.h(4.66 KB)
📄 if_bridge.h(6.46 KB)
📄 if_cablemodem.h(922 B)
📄 if_eql.h(1.26 KB)
📄 if_ether.h(7.25 KB)
📄 if_fc.h(1.63 KB)
📄 if_fddi.h(3.6 KB)
📄 if_frad.h(2.89 KB)
📄 if_hippi.h(4.07 KB)
📄 if_infiniband.h(1.13 KB)
📄 if_link.h(19.58 KB)
📄 if_ltalk.h(147 B)
📄 if_macsec.h(5.42 KB)
📄 if_packet.h(7.15 KB)
📄 if_phonet.h(361 B)
📄 if_plip.h(596 B)
📄 if_ppp.h(29 B)
📄 if_pppol2tp.h(3.18 KB)
📄 if_pppox.h(4.64 KB)
📄 if_slip.h(809 B)
📄 if_team.h(2.48 KB)
📄 if_tun.h(3.71 KB)
📄 if_tunnel.h(3.03 KB)
📄 if_vlan.h(1.69 KB)
📄 if_x25.h(817 B)
📄 ife.h(288 B)
📄 igmp.h(2.88 KB)
📁 iio
📄 in.h(9.36 KB)
📄 in6.h(6.97 KB)
📄 in_route.h(873 B)
📄 inet_diag.h(2.77 KB)
📄 inotify.h(2.85 KB)
📄 input.h(32.52 KB)
📄 ioctl.h(100 B)
📄 ip.h(3.47 KB)
📄 ip6_tunnel.h(1.67 KB)
📄 ip_vs.h(12.77 KB)
📄 ipc.h(1.99 KB)
📄 ipmi.h(14.63 KB)
📄 ipmi_msgdefs.h(3.21 KB)
📄 ipsec.h(884 B)
📄 ipv6.h(3.66 KB)
📄 ipv6_route.h(1.73 KB)
📄 ipx.h(1.79 KB)
📄 irda.h(7.31 KB)
📄 irqnr.h(104 B)
📁 isdn
📄 isdn.h(5.58 KB)
📄 isdn_divertif.h(1.11 KB)
📄 isdn_ppp.h(1.82 KB)
📄 isdnif.h(2.25 KB)
📄 iso_fs.h(6.29 KB)
📄 ivtv.h(2.89 KB)
📄 ivtvfb.h(1.12 KB)
📄 ixjuser.h(24.53 KB)
📄 jffs2.h(6.85 KB)
📄 joystick.h(3.5 KB)
📄 kd.h(6.04 KB)
📄 kdev_t.h(320 B)
📄 kernel-page-flags.h(788 B)
📄 kernel.h(375 B)
📄 kernelcapi.h(956 B)
📄 kexec.h(1.92 KB)
📄 keyboard.h(12.42 KB)
📄 keyctl.h(2.98 KB)
📄 kvm.h(33.89 KB)
📄 kvm_para.h(819 B)
📄 l2tp.h(4.98 KB)
📄 libc-compat.h(4.03 KB)
📄 limits.h(874 B)
📄 llc.h(2.98 KB)
📄 loop.h(2.31 KB)
📄 lp.h(3.72 KB)
📄 lwtunnel.h(839 B)
📄 magic.h(2.9 KB)
📄 major.h(4.48 KB)
📄 map_to_7segment.h(7.02 KB)
📄 matroxfb.h(1.37 KB)
📄 mdio.h(13.74 KB)
📄 media.h(3.5 KB)
📄 mei.h(4.62 KB)
📄 membarrier.h(7.71 KB)
📄 memfd.h(186 B)
📄 mempolicy.h(2.35 KB)
📄 meye.h(2.41 KB)
📄 mii.h(7.76 KB)
📄 minix_fs.h(2.01 KB)
📄 mman.h(230 B)
📁 mmc
📄 mmtimer.h(2.01 KB)
📄 mpls.h(1.33 KB)
📄 mqueue.h(2.01 KB)
📄 mroute.h(4.06 KB)
📄 mroute6.h(4.08 KB)
📄 msdos_fs.h(6.28 KB)
📄 msg.h(3.21 KB)
📄 mtio.h(7.92 KB)
📄 n_r3964.h(2.29 KB)
📄 nbd.h(2.34 KB)
📄 ncp.h(4.94 KB)
📄 ncp_fs.h(3.27 KB)
📄 ncp_mount.h(2.06 KB)
📄 ncp_no.h(651 B)
📄 ndctl.h(6.6 KB)
📄 neighbour.h(4.17 KB)
📄 net.h(1.97 KB)
📄 net_dropmon.h(1.07 KB)
📄 net_namespace.h(609 B)
📄 net_tstamp.h(4.06 KB)
📄 netconf.h(423 B)
📄 netdevice.h(1.46 KB)
📁 netfilter
📄 netfilter.h(1.6 KB)
📁 netfilter_arp
📄 netfilter_arp.h(380 B)
📁 netfilter_bridge
📄 netfilter_bridge.h(768 B)
📄 netfilter_decnet.h(1.83 KB)
📁 netfilter_ipv4
📄 netfilter_ipv4.h(2.02 KB)
📁 netfilter_ipv6
📄 netfilter_ipv6.h(2.04 KB)
📄 netlink.h(6.13 KB)
📄 netlink_diag.h(1005 B)
📄 netrom.h(744 B)
📄 nfc.h(7.72 KB)
📄 nfs.h(4.31 KB)
📄 nfs2.h(1.37 KB)
📄 nfs3.h(2.24 KB)
📄 nfs4.h(5.95 KB)
📄 nfs4_mount.h(1.83 KB)
📄 nfs_fs.h(1.51 KB)
📄 nfs_idmap.h(2.19 KB)
📄 nfs_mount.h(2.32 KB)
📄 nfsacl.h(605 B)
📁 nfsd
📄 nl80211.h(270.89 KB)
📄 nubus.h(8.17 KB)
📄 nvme_ioctl.h(1.55 KB)
📄 nvram.h(469 B)
📄 omap3isp.h(20.19 KB)
📄 omapfb.h(5.72 KB)
📄 oom.h(448 B)
📄 openvswitch.h(31.79 KB)
📄 packet_diag.h(1.5 KB)
📄 param.h(78 B)
📄 parport.h(3.56 KB)
📄 patchkey.h(829 B)
📄 pci.h(1.29 KB)
📄 pci_regs.h(50.79 KB)
📄 perf_event.h(31.96 KB)
📄 personality.h(1.99 KB)
📄 pfkeyv2.h(9.91 KB)
📄 pg.h(2.23 KB)
📄 phantom.h(1.55 KB)
📄 phonet.h(4.51 KB)
📄 pkt_cls.h(12.49 KB)
📄 pkt_sched.h(20.63 KB)
📄 pktcdvd.h(2.56 KB)
📄 pmu.h(5.13 KB)
📄 poll.h(22 B)
📄 posix_types.h(1.01 KB)
📄 ppdev.h(3.07 KB)
📄 ppp-comp.h(2.41 KB)
📄 ppp-ioctl.h(5.29 KB)
📄 ppp_defs.h(4.93 KB)
📄 pps.h(4.06 KB)
📄 prctl.h(6.75 KB)
📄 psample.h(735 B)
📄 ptp_clock.h(5.09 KB)
📄 ptrace.h(3.08 KB)
📄 qnx4_fs.h(2.21 KB)
📄 qnxtypes.h(561 B)
📄 quota.h(5.78 KB)
📄 radeonfb.h(297 B)
📁 raid
📄 random.h(1.2 KB)
📄 raw.h(302 B)
📄 rds.h(7.9 KB)
📄 reboot.h(1.25 KB)
📄 reiserfs_fs.h(712 B)
📄 reiserfs_xattr.h(470 B)
📄 resource.h(2.09 KB)
📄 rfkill.h(3.5 KB)
📄 romfs_fs.h(1.15 KB)
📄 rose.h(2.12 KB)
📄 route.h(2.21 KB)
📄 rtc.h(3.85 KB)
📄 rtnetlink.h(17.02 KB)
📄 scc.h(4.43 KB)
📄 sched.h(2.26 KB)
📄 screen_info.h(2.36 KB)
📄 sctp.h(29.53 KB)
📄 sdla.h(2.71 KB)
📄 seccomp.h(1.83 KB)
📄 securebits.h(2.58 KB)
📄 selinux_netlink.h(1.11 KB)
📄 sem.h(2.54 KB)
📄 serial.h(3.04 KB)
📄 serial_core.h(5.11 KB)
📄 serial_reg.h(15.66 KB)
📄 serio.h(1.81 KB)
📄 shm.h(2.19 KB)
📄 signal.h(171 B)
📄 signalfd.h(1.07 KB)
📄 snmp.h(12.42 KB)
📄 sock_diag.h(431 B)
📄 socket.h(738 B)
📄 sockios.h(5.83 KB)
📄 som.h(5.35 KB)
📄 sonet.h(2.17 KB)
📄 sonypi.h(5.12 KB)
📄 sound.h(1.15 KB)
📄 soundcard.h(44.96 KB)
📁 spi
📄 stat.h(1 KB)
📄 stddef.h(1 B)
📄 string.h(175 B)
📁 sunrpc
📄 suspend_ioctls.h(1.34 KB)
📄 swab.h(6.36 KB)
📄 synclink.h(8.71 KB)
📄 sysctl.h(25.46 KB)
📄 sysinfo.h(986 B)
📄 target_core_user.h(3.65 KB)
📄 taskstats.h(6.83 KB)
📁 tc_act
📁 tc_ematch
📄 tcp.h(5.93 KB)
📄 tcp_metrics.h(1.45 KB)
📄 telephony.h(8.84 KB)
📄 termios.h(443 B)
📄 time.h(1.54 KB)
📄 times.h(215 B)
📄 timex.h(6.17 KB)
📄 tiocl.h(1.63 KB)
📄 tipc.h(5.44 KB)
📄 tipc_config.h(14.1 KB)
📄 toshiba.h(1.24 KB)
📄 tty.h(1.33 KB)
📄 tty_flags.h(3.66 KB)
📄 types.h(1.4 KB)
📄 udf_fs_i.h(634 B)
📄 udp.h(1.28 KB)
📄 uhid.h(2.15 KB)
📄 uinput.h(5 KB)
📄 uio.h(668 B)
📄 ultrasound.h(4.39 KB)
📄 un.h(239 B)
📄 unistd.h(157 B)
📄 unix_diag.h(1.1 KB)
📁 usb
📄 usbdevice_fs.h(6.78 KB)
📄 userfaultfd.h(6.59 KB)
📄 utime.h(152 B)
📄 utsname.h(606 B)
📄 uuid.h(1.5 KB)
📄 uvcvideo.h(1.6 KB)
📄 v4l2-common.h(2.38 KB)
📄 v4l2-controls.h(37.34 KB)
📄 v4l2-dv-timings.h(25.75 KB)
📄 v4l2-mediabus.h(4.55 KB)
📄 v4l2-subdev.h(5.27 KB)
📄 version.h(332 B)
📄 veth.h(161 B)
📄 vfio.h(26.54 KB)
📄 vhost.h(7.13 KB)
📄 videodev2.h(67.36 KB)
📄 virtio_9p.h(1.99 KB)
📄 virtio_balloon.h(3.71 KB)
📄 virtio_blk.h(5.2 KB)
📄 virtio_config.h(3.34 KB)
📄 virtio_console.h(2.94 KB)
📄 virtio_gpu.h(8.23 KB)
📄 virtio_ids.h(2.32 KB)
📄 virtio_input.h(2.45 KB)
📄 virtio_net.h(9.5 KB)
📄 virtio_pci.h(6.63 KB)
📄 virtio_ring.h(6.18 KB)
📄 virtio_rng.h(265 B)
📄 virtio_scsi.h(5.13 KB)
📄 virtio_types.h(2.11 KB)
📄 virtio_vsock.h(3.01 KB)
📄 vm_sockets.h(5.13 KB)
📄 vsockmon.h(1.78 KB)
📄 vt.h(2.98 KB)
📄 vtpm_proxy.h(1.62 KB)
📄 wait.h(600 B)
📄 wanrouter.h(390 B)
📄 watchdog.h(2.22 KB)
📁 wimax
📄 wimax.h(8.17 KB)
📄 wireless.h(41.65 KB)
📄 wmi.h(1.84 KB)
📄 x25.h(3.42 KB)
📄 xattr.h(2.53 KB)
📄 xfrm.h(11 KB)

Editing: tcp.h

/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		Definitions for the TCP protocol.
 *
 * Version:	@(#)tcp.h	1.0.2	04/28/93
 *
 * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 */
#ifndef _LINUX_TCP_H
#define _LINUX_TCP_H

#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/socket.h>

struct tcphdr {
	__be16	source;
	__be16	dest;
	__be32	seq;
	__be32	ack_seq;
#if defined(__LITTLE_ENDIAN_BITFIELD)
	__u16	res1:4,
		doff:4,
		fin:1,
		syn:1,
		rst:1,
		psh:1,
		ack:1,
		urg:1,
		ece:1,
		cwr:1;
#elif defined(__BIG_ENDIAN_BITFIELD)
	__u16	doff:4,
		res1:4,
		cwr:1,
		ece:1,
		urg:1,
		ack:1,
		psh:1,
		rst:1,
		syn:1,
		fin:1;
#else
#error	"Adjust your <asm/byteorder.h> defines"
#endif	
	__be16	window;
	__sum16	check;
	__be16	urg_ptr;
};

/*
 *	The union cast uses a gcc extension to avoid aliasing problems
 *  (union is compatible to any of its members)
 *  This means this part of the code is -fstrict-aliasing safe now.
 */
union tcp_word_hdr { 
	struct tcphdr hdr;
	__be32 		  words[5];
};

#define tcp_flag_word(tp) ( ((union tcp_word_hdr *)(tp))->words [3])

enum { 
	TCP_FLAG_CWR = __constant_cpu_to_be32(0x00800000),
	TCP_FLAG_ECE = __constant_cpu_to_be32(0x00400000),
	TCP_FLAG_URG = __constant_cpu_to_be32(0x00200000),
	TCP_FLAG_ACK = __constant_cpu_to_be32(0x00100000),
	TCP_FLAG_PSH = __constant_cpu_to_be32(0x00080000),
	TCP_FLAG_RST = __constant_cpu_to_be32(0x00040000),
	TCP_FLAG_SYN = __constant_cpu_to_be32(0x00020000),
	TCP_FLAG_FIN = __constant_cpu_to_be32(0x00010000),
	TCP_RESERVED_BITS = __constant_cpu_to_be32(0x0F000000),
	TCP_DATA_OFFSET = __constant_cpu_to_be32(0xF0000000)
};

/*
 * TCP general constants
 */
#define TCP_MSS_DEFAULT		 536U	/* IPv4 (RFC1122, RFC2581) */
#define TCP_MSS_DESIRED		1220U	/* IPv6 (tunneled), EDNS0 (RFC3226) */

/* TCP socket options */
#define TCP_NODELAY		1	/* Turn off Nagle's algorithm. */
#define TCP_MAXSEG		2	/* Limit MSS */
#define TCP_CORK		3	/* Never send partially complete segments */
#define TCP_KEEPIDLE		4	/* Start keeplives after this period */
#define TCP_KEEPINTVL		5	/* Interval between keepalives */
#define TCP_KEEPCNT		6	/* Number of keepalives before death */
#define TCP_SYNCNT		7	/* Number of SYN retransmits */
#define TCP_LINGER2		8	/* Life time of orphaned FIN-WAIT-2 state */
#define TCP_DEFER_ACCEPT	9	/* Wake up listener only when data arrive */
#define TCP_WINDOW_CLAMP	10	/* Bound advertised window */
#define TCP_INFO		11	/* Information about this connection. */
#define TCP_QUICKACK		12	/* Block/reenable quick acks */
#define TCP_CONGESTION		13	/* Congestion control algorithm */
#define TCP_MD5SIG		14	/* TCP MD5 Signature (RFC2385) */
#define TCP_THIN_LINEAR_TIMEOUTS 16      /* Use linear timeouts for thin streams*/
#define TCP_THIN_DUPACK         17      /* Fast retrans. after 1 dupack */
#define TCP_USER_TIMEOUT	18	/* How long for loss retry before timeout */
#define TCP_REPAIR		19	/* TCP sock is under repair right now */
#define TCP_REPAIR_QUEUE	20
#define TCP_QUEUE_SEQ		21
#define TCP_REPAIR_OPTIONS	22
#define TCP_FASTOPEN		23	/* Enable FastOpen on listeners */
#define TCP_TIMESTAMP		24
#define TCP_NOTSENT_LOWAT	25	/* limit number of unsent bytes in write queue */
#define TCP_REPAIR_WINDOW	29	/* Get/set window parameters */

struct tcp_repair_opt {
	__u32	opt_code;
	__u32	opt_val;
};

struct tcp_repair_window {
	__u32	snd_wl1;
	__u32	snd_wnd;
	__u32	max_window;

__u32	rcv_wnd;
	__u32	rcv_wup;
};

enum {
	TCP_NO_QUEUE,
	TCP_RECV_QUEUE,
	TCP_SEND_QUEUE,
	TCP_QUEUES_NR,
};

/* for TCP_INFO socket option */
#define TCPI_OPT_TIMESTAMPS	1
#define TCPI_OPT_SACK		2
#define TCPI_OPT_WSCALE		4
#define TCPI_OPT_ECN		8 /* ECN was negociated at TCP session init */
#define TCPI_OPT_ECN_SEEN	16 /* we received at least one packet with ECT */
#define TCPI_OPT_SYN_DATA	32 /* SYN-ACK acked data in SYN sent or rcvd */

enum tcp_ca_state {
	TCP_CA_Open = 0,
#define TCPF_CA_Open	(1<<TCP_CA_Open)
	TCP_CA_Disorder = 1,
#define TCPF_CA_Disorder (1<<TCP_CA_Disorder)
	TCP_CA_CWR = 2,
#define TCPF_CA_CWR	(1<<TCP_CA_CWR)
	TCP_CA_Recovery = 3,
#define TCPF_CA_Recovery (1<<TCP_CA_Recovery)
	TCP_CA_Loss = 4
#define TCPF_CA_Loss	(1<<TCP_CA_Loss)
};

struct tcp_info {
	__u8	tcpi_state;
	__u8	tcpi_ca_state;
	__u8	tcpi_retransmits;
	__u8	tcpi_probes;
	__u8	tcpi_backoff;
	__u8	tcpi_options;
	__u8	tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;

__u32	tcpi_rto;
	__u32	tcpi_ato;
	__u32	tcpi_snd_mss;
	__u32	tcpi_rcv_mss;

__u32	tcpi_unacked;
	__u32	tcpi_sacked;
	__u32	tcpi_lost;
	__u32	tcpi_retrans;
	__u32	tcpi_fackets;

/* Times. */
	__u32	tcpi_last_data_sent;
	__u32	tcpi_last_ack_sent;     /* Not remembered, sorry. */
	__u32	tcpi_last_data_recv;
	__u32	tcpi_last_ack_recv;

/* Metrics. */
	__u32	tcpi_pmtu;
	__u32	tcpi_rcv_ssthresh;
	__u32	tcpi_rtt;
	__u32	tcpi_rttvar;
	__u32	tcpi_snd_ssthresh;
	__u32	tcpi_snd_cwnd;
	__u32	tcpi_advmss;
	__u32	tcpi_reordering;

__u32	tcpi_rcv_rtt;
	__u32	tcpi_rcv_space;

__u32	tcpi_total_retrans;

__u64	tcpi_pacing_rate;
	__u64	tcpi_max_pacing_rate;
	__u64	tcpi_bytes_acked;    /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
	__u64	tcpi_bytes_received; /* RFC4898 tcpEStatsAppHCThruOctetsReceived */
	__u32	tcpi_segs_out;	     /* RFC4898 tcpEStatsPerfSegsOut */
	__u32	tcpi_segs_in;	     /* RFC4898 tcpEStatsPerfSegsIn */
};

/* for TCP_MD5SIG socket option */
#define TCP_MD5SIG_MAXKEYLEN	80

struct tcp_md5sig {
	struct __kernel_sockaddr_storage tcpm_addr;	/* address associated */
	__u16	__tcpm_pad1;				/* zero */
	__u16	tcpm_keylen;				/* key length */
	__u32	__tcpm_pad2;				/* zero */
	__u8	tcpm_key[TCP_MD5SIG_MAXKEYLEN];		/* key (binary) */
};

#endif /* _LINUX_TCP_H */

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