Colin Cross | 07a5832 | 2022-02-08 19:45:27 -0800 | [diff] [blame] | 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 | |
| 57 | enum { |
| 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 | }; |
| 84 | |
| 85 | #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) |
| 86 | #define TCPOPT_EOL 0 |
| 87 | #define TCPOPT_NOP 1 |
| 88 | #define TCPOPT_MAXSEG 2 |
| 89 | #define TCPOPT_WINDOW 3 |
| 90 | #define TCPOPT_SACK_PERMITTED 4 |
| 91 | #define TCPOPT_SACK 5 |
| 92 | #define TCPOPT_TIMESTAMP 8 |
| 93 | #define TCPOLEN_SACK_PERMITTED 2 |
| 94 | #define TCPOLEN_WINDOW 3 |
| 95 | #define TCPOLEN_MAXSEG 4 |
| 96 | #define TCPOLEN_TIMESTAMP 10 |
| 97 | |
| 98 | #define SOL_TCP 6 |
| 99 | |
| 100 | #include <sys/types.h> |
| 101 | #include <sys/socket.h> |
| 102 | #include <stdint.h> |
| 103 | |
| 104 | typedef uint32_t tcp_seq; |
| 105 | |
| 106 | #define TH_FIN 0x01 |
| 107 | #define TH_SYN 0x02 |
| 108 | #define TH_RST 0x04 |
| 109 | #define TH_PUSH 0x08 |
| 110 | #define TH_ACK 0x10 |
| 111 | #define TH_URG 0x20 |
| 112 | |
| 113 | struct tcphdr { |
| 114 | #ifdef _GNU_SOURCE |
| 115 | #ifdef __GNUC__ |
| 116 | __extension__ |
| 117 | #endif |
| 118 | union { struct { |
| 119 | |
| 120 | uint16_t source; |
| 121 | uint16_t dest; |
| 122 | uint32_t seq; |
| 123 | uint32_t ack_seq; |
| 124 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
| 125 | uint16_t res1:4; |
| 126 | uint16_t doff:4; |
| 127 | uint16_t fin:1; |
| 128 | uint16_t syn:1; |
| 129 | uint16_t rst:1; |
| 130 | uint16_t psh:1; |
| 131 | uint16_t ack:1; |
| 132 | uint16_t urg:1; |
| 133 | uint16_t res2:2; |
| 134 | #else |
| 135 | uint16_t doff:4; |
| 136 | uint16_t res1:4; |
| 137 | uint16_t res2:2; |
| 138 | uint16_t urg:1; |
| 139 | uint16_t ack:1; |
| 140 | uint16_t psh:1; |
| 141 | uint16_t rst:1; |
| 142 | uint16_t syn:1; |
| 143 | uint16_t fin:1; |
| 144 | #endif |
| 145 | uint16_t window; |
| 146 | uint16_t check; |
| 147 | uint16_t urg_ptr; |
| 148 | |
| 149 | }; struct { |
| 150 | #endif |
| 151 | |
| 152 | uint16_t th_sport; |
| 153 | uint16_t th_dport; |
| 154 | uint32_t th_seq; |
| 155 | uint32_t th_ack; |
| 156 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
| 157 | uint8_t th_x2:4; |
| 158 | uint8_t th_off:4; |
| 159 | #else |
| 160 | uint8_t th_off:4; |
| 161 | uint8_t th_x2:4; |
| 162 | #endif |
| 163 | uint8_t th_flags; |
| 164 | uint16_t th_win; |
| 165 | uint16_t th_sum; |
| 166 | uint16_t th_urp; |
| 167 | |
| 168 | #ifdef _GNU_SOURCE |
| 169 | }; }; |
| 170 | #endif |
| 171 | }; |
| 172 | #endif |
| 173 | |
| 174 | #ifdef _GNU_SOURCE |
| 175 | #define TCPI_OPT_TIMESTAMPS 1 |
| 176 | #define TCPI_OPT_SACK 2 |
| 177 | #define TCPI_OPT_WSCALE 4 |
| 178 | #define TCPI_OPT_ECN 8 |
| 179 | |
| 180 | #define TCP_CA_Open 0 |
| 181 | #define TCP_CA_Disorder 1 |
| 182 | #define TCP_CA_CWR 2 |
| 183 | #define TCP_CA_Recovery 3 |
| 184 | #define TCP_CA_Loss 4 |
| 185 | |
| 186 | enum tcp_fastopen_client_fail { |
| 187 | TFO_STATUS_UNSPEC, |
| 188 | TFO_COOKIE_UNAVAILABLE, |
| 189 | TFO_DATA_NOT_ACKED, |
| 190 | TFO_SYN_RETRANSMITTED, |
| 191 | }; |
| 192 | |
| 193 | struct tcp_info { |
| 194 | uint8_t tcpi_state; |
| 195 | uint8_t tcpi_ca_state; |
| 196 | uint8_t tcpi_retransmits; |
| 197 | uint8_t tcpi_probes; |
| 198 | uint8_t tcpi_backoff; |
| 199 | uint8_t tcpi_options; |
| 200 | uint8_t tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4; |
| 201 | uint8_t tcpi_delivery_rate_app_limited : 1, tcpi_fastopen_client_fail : 2; |
| 202 | uint32_t tcpi_rto; |
| 203 | uint32_t tcpi_ato; |
| 204 | uint32_t tcpi_snd_mss; |
| 205 | uint32_t tcpi_rcv_mss; |
| 206 | uint32_t tcpi_unacked; |
| 207 | uint32_t tcpi_sacked; |
| 208 | uint32_t tcpi_lost; |
| 209 | uint32_t tcpi_retrans; |
| 210 | uint32_t tcpi_fackets; |
| 211 | uint32_t tcpi_last_data_sent; |
| 212 | uint32_t tcpi_last_ack_sent; |
| 213 | uint32_t tcpi_last_data_recv; |
| 214 | uint32_t tcpi_last_ack_recv; |
| 215 | uint32_t tcpi_pmtu; |
| 216 | uint32_t tcpi_rcv_ssthresh; |
| 217 | uint32_t tcpi_rtt; |
| 218 | uint32_t tcpi_rttvar; |
| 219 | uint32_t tcpi_snd_ssthresh; |
| 220 | uint32_t tcpi_snd_cwnd; |
| 221 | uint32_t tcpi_advmss; |
| 222 | uint32_t tcpi_reordering; |
| 223 | uint32_t tcpi_rcv_rtt; |
| 224 | uint32_t tcpi_rcv_space; |
| 225 | uint32_t tcpi_total_retrans; |
| 226 | uint64_t tcpi_pacing_rate; |
| 227 | uint64_t tcpi_max_pacing_rate; |
| 228 | uint64_t tcpi_bytes_acked; |
| 229 | uint64_t tcpi_bytes_received; |
| 230 | uint32_t tcpi_segs_out; |
| 231 | uint32_t tcpi_segs_in; |
| 232 | uint32_t tcpi_notsent_bytes; |
| 233 | uint32_t tcpi_min_rtt; |
| 234 | uint32_t tcpi_data_segs_in; |
| 235 | uint32_t tcpi_data_segs_out; |
| 236 | uint64_t tcpi_delivery_rate; |
| 237 | uint64_t tcpi_busy_time; |
| 238 | uint64_t tcpi_rwnd_limited; |
| 239 | uint64_t tcpi_sndbuf_limited; |
| 240 | uint32_t tcpi_delivered; |
| 241 | uint32_t tcpi_delivered_ce; |
| 242 | uint64_t tcpi_bytes_sent; |
| 243 | uint64_t tcpi_bytes_retrans; |
| 244 | uint32_t tcpi_dsack_dups; |
| 245 | uint32_t tcpi_reord_seen; |
| 246 | uint32_t tcpi_rcv_ooopack; |
| 247 | uint32_t tcpi_snd_wnd; |
| 248 | }; |
| 249 | |
| 250 | #define TCP_MD5SIG_MAXKEYLEN 80 |
| 251 | |
| 252 | #define TCP_MD5SIG_FLAG_PREFIX 0x1 |
| 253 | #define TCP_MD5SIG_FLAG_IFINDEX 0x2 |
| 254 | |
| 255 | struct tcp_md5sig { |
| 256 | struct sockaddr_storage tcpm_addr; |
| 257 | uint8_t tcpm_flags; |
| 258 | uint8_t tcpm_prefixlen; |
| 259 | uint16_t tcpm_keylen; |
| 260 | int tcpm_ifindex; |
| 261 | uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN]; |
| 262 | }; |
| 263 | |
| 264 | struct tcp_diag_md5sig { |
| 265 | uint8_t tcpm_family; |
| 266 | uint8_t tcpm_prefixlen; |
| 267 | uint16_t tcpm_keylen; |
| 268 | uint32_t tcpm_addr[4]; |
| 269 | uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN]; |
| 270 | }; |
| 271 | |
| 272 | #define TCP_REPAIR_ON 1 |
| 273 | #define TCP_REPAIR_OFF 0 |
| 274 | #define TCP_REPAIR_OFF_NO_WP -1 |
| 275 | |
| 276 | struct tcp_repair_window { |
| 277 | uint32_t snd_wl1; |
| 278 | uint32_t snd_wnd; |
| 279 | uint32_t max_window; |
| 280 | uint32_t rcv_wnd; |
| 281 | uint32_t rcv_wup; |
| 282 | }; |
| 283 | |
| 284 | struct tcp_zerocopy_receive { |
| 285 | uint64_t address; |
| 286 | uint32_t length; |
| 287 | uint32_t recv_skip_hint; |
| 288 | uint32_t inq; |
| 289 | int32_t err; |
| 290 | }; |
| 291 | |
| 292 | #endif |
| 293 | |
| 294 | #endif |