tcp.h revision 96c1db7b9d601c31d103389cac074a6cce0d7633 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_LINUX_TCP_H
20#define _UAPI_LINUX_TCP_H
21#include <linux/types.h>
22#include <asm/byteorder.h>
23#include <linux/socket.h>
24struct tcphdr {
25  __be16 source;
26  __be16 dest;
27  __be32 seq;
28  __be32 ack_seq;
29#ifdef __LITTLE_ENDIAN_BITFIELD
30  __u16 res1 : 4, doff : 4, fin : 1, syn : 1, rst : 1, psh : 1, ack : 1, urg : 1, ece : 1, cwr : 1;
31#elif defined(__BIG_ENDIAN_BITFIELD)
32  __u16 doff : 4, res1 : 4, cwr : 1, ece : 1, urg : 1, ack : 1, psh : 1, rst : 1, syn : 1, fin : 1;
33#else
34#error "Adjust your <asm/byteorder.h> defines"
35#endif
36  __be16 window;
37  __sum16 check;
38  __be16 urg_ptr;
39};
40union tcp_word_hdr {
41  struct tcphdr hdr;
42  __be32 words[5];
43};
44#define tcp_flag_word(tp) (((union tcp_word_hdr *) (tp))->words[3])
45enum {
46  TCP_FLAG_CWR = __constant_cpu_to_be32(0x00800000),
47  TCP_FLAG_ECE = __constant_cpu_to_be32(0x00400000),
48  TCP_FLAG_URG = __constant_cpu_to_be32(0x00200000),
49  TCP_FLAG_ACK = __constant_cpu_to_be32(0x00100000),
50  TCP_FLAG_PSH = __constant_cpu_to_be32(0x00080000),
51  TCP_FLAG_RST = __constant_cpu_to_be32(0x00040000),
52  TCP_FLAG_SYN = __constant_cpu_to_be32(0x00020000),
53  TCP_FLAG_FIN = __constant_cpu_to_be32(0x00010000),
54  TCP_RESERVED_BITS = __constant_cpu_to_be32(0x0F000000),
55  TCP_DATA_OFFSET = __constant_cpu_to_be32(0xF0000000)
56};
57#define TCP_MSS_DEFAULT 536U
58#define TCP_MSS_DESIRED 1220U
59#define TCP_NODELAY 1
60#define TCP_MAXSEG 2
61#define TCP_CORK 3
62#define TCP_KEEPIDLE 4
63#define TCP_KEEPINTVL 5
64#define TCP_KEEPCNT 6
65#define TCP_SYNCNT 7
66#define TCP_LINGER2 8
67#define TCP_DEFER_ACCEPT 9
68#define TCP_WINDOW_CLAMP 10
69#define TCP_INFO 11
70#define TCP_QUICKACK 12
71#define TCP_CONGESTION 13
72#define TCP_MD5SIG 14
73#define TCP_THIN_LINEAR_TIMEOUTS 16
74#define TCP_THIN_DUPACK 17
75#define TCP_USER_TIMEOUT 18
76#define TCP_REPAIR 19
77#define TCP_REPAIR_QUEUE 20
78#define TCP_QUEUE_SEQ 21
79#define TCP_REPAIR_OPTIONS 22
80#define TCP_FASTOPEN 23
81#define TCP_TIMESTAMP 24
82#define TCP_NOTSENT_LOWAT 25
83#define TCP_CC_INFO 26
84#define TCP_SAVE_SYN 27
85#define TCP_SAVED_SYN 28
86#define TCP_REPAIR_WINDOW 29
87struct tcp_repair_opt {
88  __u32 opt_code;
89  __u32 opt_val;
90};
91struct tcp_repair_window {
92  __u32 snd_wl1;
93  __u32 snd_wnd;
94  __u32 max_window;
95  __u32 rcv_wnd;
96  __u32 rcv_wup;
97};
98enum {
99  TCP_NO_QUEUE,
100  TCP_RECV_QUEUE,
101  TCP_SEND_QUEUE,
102  TCP_QUEUES_NR,
103};
104#define TCPI_OPT_TIMESTAMPS 1
105#define TCPI_OPT_SACK 2
106#define TCPI_OPT_WSCALE 4
107#define TCPI_OPT_ECN 8
108#define TCPI_OPT_ECN_SEEN 16
109#define TCPI_OPT_SYN_DATA 32
110enum tcp_ca_state {
111  TCP_CA_Open = 0,
112#define TCPF_CA_Open (1 << TCP_CA_Open)
113  TCP_CA_Disorder = 1,
114#define TCPF_CA_Disorder (1 << TCP_CA_Disorder)
115  TCP_CA_CWR = 2,
116#define TCPF_CA_CWR (1 << TCP_CA_CWR)
117  TCP_CA_Recovery = 3,
118#define TCPF_CA_Recovery (1 << TCP_CA_Recovery)
119  TCP_CA_Loss = 4
120#define TCPF_CA_Loss (1 << TCP_CA_Loss)
121};
122struct tcp_info {
123  __u8 tcpi_state;
124  __u8 tcpi_ca_state;
125  __u8 tcpi_retransmits;
126  __u8 tcpi_probes;
127  __u8 tcpi_backoff;
128  __u8 tcpi_options;
129  __u8 tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
130  __u8 tcpi_delivery_rate_app_limited : 1;
131  __u32 tcpi_rto;
132  __u32 tcpi_ato;
133  __u32 tcpi_snd_mss;
134  __u32 tcpi_rcv_mss;
135  __u32 tcpi_unacked;
136  __u32 tcpi_sacked;
137  __u32 tcpi_lost;
138  __u32 tcpi_retrans;
139  __u32 tcpi_fackets;
140  __u32 tcpi_last_data_sent;
141  __u32 tcpi_last_ack_sent;
142  __u32 tcpi_last_data_recv;
143  __u32 tcpi_last_ack_recv;
144  __u32 tcpi_pmtu;
145  __u32 tcpi_rcv_ssthresh;
146  __u32 tcpi_rtt;
147  __u32 tcpi_rttvar;
148  __u32 tcpi_snd_ssthresh;
149  __u32 tcpi_snd_cwnd;
150  __u32 tcpi_advmss;
151  __u32 tcpi_reordering;
152  __u32 tcpi_rcv_rtt;
153  __u32 tcpi_rcv_space;
154  __u32 tcpi_total_retrans;
155  __u64 tcpi_pacing_rate;
156  __u64 tcpi_max_pacing_rate;
157  __u64 tcpi_bytes_acked;
158  __u64 tcpi_bytes_received;
159  __u32 tcpi_segs_out;
160  __u32 tcpi_segs_in;
161  __u32 tcpi_notsent_bytes;
162  __u32 tcpi_min_rtt;
163  __u32 tcpi_data_segs_in;
164  __u32 tcpi_data_segs_out;
165  __u64 tcpi_delivery_rate;
166  __u64 tcpi_busy_time;
167  __u64 tcpi_rwnd_limited;
168  __u64 tcpi_sndbuf_limited;
169};
170enum {
171  TCP_NLA_PAD,
172  TCP_NLA_BUSY,
173  TCP_NLA_RWND_LIMITED,
174  TCP_NLA_SNDBUF_LIMITED,
175};
176#define TCP_MD5SIG_MAXKEYLEN 80
177struct tcp_md5sig {
178  struct __kernel_sockaddr_storage tcpm_addr;
179  __u16 __tcpm_pad1;
180  __u16 tcpm_keylen;
181  __u32 __tcpm_pad2;
182  __u8 tcpm_key[TCP_MD5SIG_MAXKEYLEN];
183};
184#endif
185