tcp.h 5.5 KB

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