diff options
Diffstat (limited to 'sysdeps/gnu/netinet/tcp.h')
| -rw-r--r-- | sysdeps/gnu/netinet/tcp.h | 80 |
1 files changed, 66 insertions, 14 deletions
diff --git a/sysdeps/gnu/netinet/tcp.h b/sysdeps/gnu/netinet/tcp.h index 278fc9d8a5..b62a696e5b 100644 --- a/sysdeps/gnu/netinet/tcp.h +++ b/sysdeps/gnu/netinet/tcp.h @@ -37,20 +37,29 @@ /* * User-settable options (used with setsockopt). */ -#define TCP_NODELAY 1 /* Don't delay send to coalesce packets */ -#define TCP_MAXSEG 2 /* Set maximum segment size */ -#define TCP_CORK 3 /* Control sending of partial frames */ -#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 /* Bock/reenable quick ACKs. */ -#define TCP_CONGESTION 13 /* Congestion control algorithm. */ -#define TCP_MD5SIG 14 /* TCP MD5 Signature (RFC2385) */ +#define TCP_NODELAY 1 /* Don't delay send to coalesce packets */ +#define TCP_MAXSEG 2 /* Set maximum segment size */ +#define TCP_CORK 3 /* Control sending of partial frames */ +#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 /* Bock/reenable quick ACKs. */ +#define TCP_CONGESTION 13 /* Congestion control algorithm. */ +#define TCP_MD5SIG 14 /* TCP MD5 Signature (RFC2385) */ +#define TCP_COOKIE_TRANSACTIONS 15 /* TCP Cookie Transactions */ +#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 /* Set TCP queue to repair */ +#define TCP_QUEUE_SEQ 21 /* Set sequence number of repaired queue. */ +#define TCP_REPAIR_OPTIONS 22 /* Repair TCP connection options */ +#define TCP_FASTOPEN 23 /* Enable FastOpen on listeners */ #ifdef __USE_MISC # include <sys/types.h> @@ -243,6 +252,49 @@ struct tcp_md5sig u_int8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN]; /* Key (binary). */ }; +/* For socket repair options. */ +struct tcp_repair_opt +{ + u_int32_t opt_code; + u_int32_t opt_val; +}; + +/* Queue to repair, for TCP_REPAIR_QUEUE. */ +enum +{ + TCP_NO_QUEUE, + TCP_RECV_QUEUE, + TCP_SEND_QUEUE, + TCP_QUEUES_NR, +}; + +/* For cookie transactions socket options. */ +#define TCP_COOKIE_MIN 8 /* 64-bits */ +#define TCP_COOKIE_MAX 16 /* 128-bits */ +#define TCP_COOKIE_PAIR_SIZE (2*TCP_COOKIE_MAX) + +/* Flags for both getsockopt and setsockopt */ +#define TCP_COOKIE_IN_ALWAYS (1 << 0) /* Discard SYN without cookie */ +#define TCP_COOKIE_OUT_NEVER (1 << 1) /* Prohibit outgoing cookies, + * supercedes everything. */ + +/* Flags for getsockopt */ +#define TCP_S_DATA_IN (1 << 2) /* Was data received? */ +#define TCP_S_DATA_OUT (1 << 3) /* Was data sent? */ + +#define TCP_MSS_DEFAULT 536U /* IPv4 (RFC1122, RFC2581) */ +#define TCP_MSS_DESIRED 1220U /* IPv6 (tunneled), EDNS0 (RFC3226) */ + +struct tcp_cookie_transactions +{ + u_int16_t tcpct_flags; + u_int8_t __tcpct_pad1; + u_int8_t tcpct_cookie_desired; + u_int16_t tcpct_s_data_desired; + u_int16_t tcpct_used; + u_int8_t tcpct_value[TCP_MSS_DEFAULT]; +}; + #endif /* Misc. */ #endif /* netinet/tcp.h */ |