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1#ifndef _NETINET_TCP_H
2#define _NETINET_TCP_H
3
4#include <features.h>
5
6#define TCP_NODELAY 1
7#define TCP_MAXSEG 2
8#define TCP_CORK 3
9#define TCP_KEEPIDLE 4
10#define TCP_KEEPINTVL 5
11#define TCP_KEEPCNT 6
12#define TCP_SYNCNT 7
13#define TCP_LINGER2 8
14#define TCP_DEFER_ACCEPT 9
15#define TCP_WINDOW_CLAMP 10
16#define TCP_INFO 11
17#define TCP_QUICKACK 12
18#define TCP_CONGESTION 13
19#define TCP_MD5SIG 14
20#define TCP_THIN_LINEAR_TIMEOUTS 16
21#define TCP_THIN_DUPACK 17
22#define TCP_USER_TIMEOUT 18
23#define TCP_REPAIR 19
24#define TCP_REPAIR_QUEUE 20
25#define TCP_QUEUE_SEQ 21
26#define TCP_REPAIR_OPTIONS 22
27#define TCP_FASTOPEN 23
28#define TCP_TIMESTAMP 24
29#define TCP_NOTSENT_LOWAT 25
30#define TCP_CC_INFO 26
31#define TCP_SAVE_SYN 27
32#define TCP_SAVED_SYN 28
33#define TCP_REPAIR_WINDOW 29
34#define TCP_FASTOPEN_CONNECT 30
35#define TCP_ULP 31
36#define TCP_MD5SIG_EXT 32
37#define TCP_FASTOPEN_KEY 33
38#define TCP_FASTOPEN_NO_COOKIE 34
39#define TCP_ZEROCOPY_RECEIVE 35
40#define TCP_INQ 36
41#define TCP_TX_DELAY 37
42
43#define TCP_CM_INQ TCP_INQ
44
45#define TCP_ESTABLISHED 1
46#define TCP_SYN_SENT 2
47#define TCP_SYN_RECV 3
48#define TCP_FIN_WAIT1 4
49#define TCP_FIN_WAIT2 5
50#define TCP_TIME_WAIT 6
51#define TCP_CLOSE 7
52#define TCP_CLOSE_WAIT 8
53#define TCP_LAST_ACK 9
54#define TCP_LISTEN 10
55#define TCP_CLOSING 11
56
57enum {
58 TCP_NLA_PAD,
59 TCP_NLA_BUSY,
60 TCP_NLA_RWND_LIMITED,
61 TCP_NLA_SNDBUF_LIMITED,
62 TCP_NLA_DATA_SEGS_OUT,
63 TCP_NLA_TOTAL_RETRANS,
64 TCP_NLA_PACING_RATE,
65 TCP_NLA_DELIVERY_RATE,
66 TCP_NLA_SND_CWND,
67 TCP_NLA_REORDERING,
68 TCP_NLA_MIN_RTT,
69 TCP_NLA_RECUR_RETRANS,
70 TCP_NLA_DELIVERY_RATE_APP_LMT,
71 TCP_NLA_SNDQ_SIZE,
72 TCP_NLA_CA_STATE,
73 TCP_NLA_SND_SSTHRESH,
74 TCP_NLA_DELIVERED,
75 TCP_NLA_DELIVERED_CE,
76 TCP_NLA_BYTES_SENT,
77 TCP_NLA_BYTES_RETRANS,
78 TCP_NLA_DSACK_DUPS,
79 TCP_NLA_REORD_SEEN,
80 TCP_NLA_SRTT,
81 TCP_NLA_TIMEOUT_REHASH,
82 TCP_NLA_BYTES_NOTSENT,
83 TCP_NLA_EDT,
84 TCP_NLA_TTL,
85};
86
87#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
88#define TCPOPT_EOL 0
89#define TCPOPT_NOP 1
90#define TCPOPT_MAXSEG 2
91#define TCPOPT_WINDOW 3
92#define TCPOPT_SACK_PERMITTED 4
93#define TCPOPT_SACK 5
94#define TCPOPT_TIMESTAMP 8
95#define TCPOLEN_SACK_PERMITTED 2
96#define TCPOLEN_WINDOW 3
97#define TCPOLEN_MAXSEG 4
98#define TCPOLEN_TIMESTAMP 10
99
100#define SOL_TCP 6
101
102#include <sys/types.h>
103#include <sys/socket.h>
104#include <stdint.h>
105
106typedef uint32_t tcp_seq;
107
108#define TH_FIN 0x01
109#define TH_SYN 0x02
110#define TH_RST 0x04
111#define TH_PUSH 0x08
112#define TH_ACK 0x10
113#define TH_URG 0x20
114
115struct tcphdr {
116#ifdef _GNU_SOURCE
117#ifdef __GNUC__
118 __extension__
119#endif
120 union { struct {
121
122 uint16_t source;
123 uint16_t dest;
124 uint32_t seq;
125 uint32_t ack_seq;
126#if __BYTE_ORDER == __LITTLE_ENDIAN
127 uint16_t res1:4;
128 uint16_t doff:4;
129 uint16_t fin:1;
130 uint16_t syn:1;
131 uint16_t rst:1;
132 uint16_t psh:1;
133 uint16_t ack:1;
134 uint16_t urg:1;
135 uint16_t res2:2;
136#else
137 uint16_t doff:4;
138 uint16_t res1:4;
139 uint16_t res2:2;
140 uint16_t urg:1;
141 uint16_t ack:1;
142 uint16_t psh:1;
143 uint16_t rst:1;
144 uint16_t syn:1;
145 uint16_t fin:1;
146#endif
147 uint16_t window;
148 uint16_t check;
149 uint16_t urg_ptr;
150
151 }; struct {
152#endif
153
154 uint16_t th_sport;
155 uint16_t th_dport;
156 uint32_t th_seq;
157 uint32_t th_ack;
158#if __BYTE_ORDER == __LITTLE_ENDIAN
159 uint8_t th_x2:4;
160 uint8_t th_off:4;
161#else
162 uint8_t th_off:4;
163 uint8_t th_x2:4;
164#endif
165 uint8_t th_flags;
166 uint16_t th_win;
167 uint16_t th_sum;
168 uint16_t th_urp;
169
170#ifdef _GNU_SOURCE
171 }; };
172#endif
173};
174#endif
175
176#ifdef _GNU_SOURCE
177#define TCPI_OPT_TIMESTAMPS 1
178#define TCPI_OPT_SACK 2
179#define TCPI_OPT_WSCALE 4
180#define TCPI_OPT_ECN 8
181
182#define TCP_CA_Open 0
183#define TCP_CA_Disorder 1
184#define TCP_CA_CWR 2
185#define TCP_CA_Recovery 3
186#define TCP_CA_Loss 4
187
188enum tcp_fastopen_client_fail {
189 TFO_STATUS_UNSPEC,
190 TFO_COOKIE_UNAVAILABLE,
191 TFO_DATA_NOT_ACKED,
192 TFO_SYN_RETRANSMITTED,
193};
194
195struct tcp_info {
196 uint8_t tcpi_state;
197 uint8_t tcpi_ca_state;
198 uint8_t tcpi_retransmits;
199 uint8_t tcpi_probes;
200 uint8_t tcpi_backoff;
201 uint8_t tcpi_options;
202 uint8_t tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
203 uint8_t tcpi_delivery_rate_app_limited : 1, tcpi_fastopen_client_fail : 2;
204 uint32_t tcpi_rto;
205 uint32_t tcpi_ato;
206 uint32_t tcpi_snd_mss;
207 uint32_t tcpi_rcv_mss;
208 uint32_t tcpi_unacked;
209 uint32_t tcpi_sacked;
210 uint32_t tcpi_lost;
211 uint32_t tcpi_retrans;
212 uint32_t tcpi_fackets;
213 uint32_t tcpi_last_data_sent;
214 uint32_t tcpi_last_ack_sent;
215 uint32_t tcpi_last_data_recv;
216 uint32_t tcpi_last_ack_recv;
217 uint32_t tcpi_pmtu;
218 uint32_t tcpi_rcv_ssthresh;
219 uint32_t tcpi_rtt;
220 uint32_t tcpi_rttvar;
221 uint32_t tcpi_snd_ssthresh;
222 uint32_t tcpi_snd_cwnd;
223 uint32_t tcpi_advmss;
224 uint32_t tcpi_reordering;
225 uint32_t tcpi_rcv_rtt;
226 uint32_t tcpi_rcv_space;
227 uint32_t tcpi_total_retrans;
228 uint64_t tcpi_pacing_rate;
229 uint64_t tcpi_max_pacing_rate;
230 uint64_t tcpi_bytes_acked;
231 uint64_t tcpi_bytes_received;
232 uint32_t tcpi_segs_out;
233 uint32_t tcpi_segs_in;
234 uint32_t tcpi_notsent_bytes;
235 uint32_t tcpi_min_rtt;
236 uint32_t tcpi_data_segs_in;
237 uint32_t tcpi_data_segs_out;
238 uint64_t tcpi_delivery_rate;
239 uint64_t tcpi_busy_time;
240 uint64_t tcpi_rwnd_limited;
241 uint64_t tcpi_sndbuf_limited;
242 uint32_t tcpi_delivered;
243 uint32_t tcpi_delivered_ce;
244 uint64_t tcpi_bytes_sent;
245 uint64_t tcpi_bytes_retrans;
246 uint32_t tcpi_dsack_dups;
247 uint32_t tcpi_reord_seen;
248 uint32_t tcpi_rcv_ooopack;
249 uint32_t tcpi_snd_wnd;
250};
251
252#define TCP_MD5SIG_MAXKEYLEN 80
253
254#define TCP_MD5SIG_FLAG_PREFIX 0x1
255#define TCP_MD5SIG_FLAG_IFINDEX 0x2
256
257struct tcp_md5sig {
258 struct sockaddr_storage tcpm_addr;
259 uint8_t tcpm_flags;
260 uint8_t tcpm_prefixlen;
261 uint16_t tcpm_keylen;
262 int tcpm_ifindex;
263 uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
264};
265
266struct tcp_diag_md5sig {
267 uint8_t tcpm_family;
268 uint8_t tcpm_prefixlen;
269 uint16_t tcpm_keylen;
270 uint32_t tcpm_addr[4];
271 uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
272};
273
274#define TCP_REPAIR_ON 1
275#define TCP_REPAIR_OFF 0
276#define TCP_REPAIR_OFF_NO_WP -1
277
278struct tcp_repair_window {
279 uint32_t snd_wl1;
280 uint32_t snd_wnd;
281 uint32_t max_window;
282 uint32_t rcv_wnd;
283 uint32_t rcv_wup;
284};
285
286#define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1
287
288struct tcp_zerocopy_receive {
289 uint64_t address;
290 uint32_t length;
291 uint32_t recv_skip_hint;
292 uint32_t inq;
293 int32_t err;
294 uint64_t copybuf_address;
295 int32_t copybuf_len;
296 uint32_t flags;
297 uint64_t msg_control;
298 uint64_t msg_controllen;
299 uint32_t msg_flags;
300 uint32_t reserved;
301};
302
303#endif
304
305#endif