netinet/tcp.h: add tcp zerocopy related changes from linux v5.11
[musl] / include / netinet / tcp.h
index 6f75eb3..30f2023 100644 (file)
 #define TCP_REPAIR_OPTIONS 22
 #define TCP_FASTOPEN     23
 #define TCP_TIMESTAMP    24
+#define TCP_NOTSENT_LOWAT 25
+#define TCP_CC_INFO      26
+#define TCP_SAVE_SYN     27
+#define TCP_SAVED_SYN    28
+#define TCP_REPAIR_WINDOW 29
+#define TCP_FASTOPEN_CONNECT 30
+#define TCP_ULP          31
+#define TCP_MD5SIG_EXT   32
+#define TCP_FASTOPEN_KEY 33
+#define TCP_FASTOPEN_NO_COOKIE 34
+#define TCP_ZEROCOPY_RECEIVE   35
+#define TCP_INQ          36
+#define TCP_TX_DELAY     37
+
+#define TCP_CM_INQ TCP_INQ
 
 #define TCP_ESTABLISHED  1
 #define TCP_SYN_SENT     2
 #define TCP_LISTEN       10
 #define TCP_CLOSING      11
 
+enum {
+       TCP_NLA_PAD,
+       TCP_NLA_BUSY,
+       TCP_NLA_RWND_LIMITED,
+       TCP_NLA_SNDBUF_LIMITED,
+       TCP_NLA_DATA_SEGS_OUT,
+       TCP_NLA_TOTAL_RETRANS,
+       TCP_NLA_PACING_RATE,
+       TCP_NLA_DELIVERY_RATE,
+       TCP_NLA_SND_CWND,
+       TCP_NLA_REORDERING,
+       TCP_NLA_MIN_RTT,
+       TCP_NLA_RECUR_RETRANS,
+       TCP_NLA_DELIVERY_RATE_APP_LMT,
+       TCP_NLA_SNDQ_SIZE,
+       TCP_NLA_CA_STATE,
+       TCP_NLA_SND_SSTHRESH,
+       TCP_NLA_DELIVERED,
+       TCP_NLA_DELIVERED_CE,
+       TCP_NLA_BYTES_SENT,
+       TCP_NLA_BYTES_RETRANS,
+       TCP_NLA_DSACK_DUPS,
+       TCP_NLA_REORD_SEEN,
+       TCP_NLA_SRTT,
+       TCP_NLA_TIMEOUT_REHASH,
+       TCP_NLA_BYTES_NOTSENT,
+};
+
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define TCPOPT_EOL              0
+#define TCPOPT_NOP              1
+#define TCPOPT_MAXSEG           2
+#define TCPOPT_WINDOW           3
+#define TCPOPT_SACK_PERMITTED   4
+#define TCPOPT_SACK             5
+#define TCPOPT_TIMESTAMP        8
+#define TCPOLEN_SACK_PERMITTED  2
+#define TCPOLEN_WINDOW          3
+#define TCPOLEN_MAXSEG          4
+#define TCPOLEN_TIMESTAMP       10
+
 #define SOL_TCP 6
+
 #include <sys/types.h>
 #include <sys/socket.h>
-#endif
+#include <stdint.h>
+
+typedef uint32_t tcp_seq;
+
+#define TH_FIN 0x01
+#define TH_SYN 0x02
+#define TH_RST 0x04
+#define TH_PUSH 0x08
+#define TH_ACK 0x10
+#define TH_URG 0x20
 
+struct tcphdr {
 #ifdef _GNU_SOURCE
-#include <endian.h>
-struct tcphdr
-{
-       u_int16_t source;
-       u_int16_t dest;
-       u_int32_t seq;
-       u_int32_t ack_seq;
+#ifdef __GNUC__
+       __extension__
+#endif
+       union { struct {
+
+       uint16_t source;
+       uint16_t dest;
+       uint32_t seq;
+       uint32_t ack_seq;
 #if __BYTE_ORDER == __LITTLE_ENDIAN
-       u_int16_t res1:4;
-       u_int16_t doff:4;
-       u_int16_t fin:1;
-       u_int16_t syn:1;
-       u_int16_t rst:1;
-       u_int16_t psh:1;
-       u_int16_t ack:1;
-       u_int16_t urg:1;
-       u_int16_t res2:2;
+       uint16_t res1:4;
+       uint16_t doff:4;
+       uint16_t fin:1;
+       uint16_t syn:1;
+       uint16_t rst:1;
+       uint16_t psh:1;
+       uint16_t ack:1;
+       uint16_t urg:1;
+       uint16_t res2:2;
 #else
-       u_int16_t doff:4;
-       u_int16_t res1:4;
-       u_int16_t res2:2;
-       u_int16_t urg:1;
-       u_int16_t ack:1;
-       u_int16_t psh:1;
-       u_int16_t rst:1;
-       u_int16_t syn:1;
-       u_int16_t fin:1;
+       uint16_t doff:4;
+       uint16_t res1:4;
+       uint16_t res2:2;
+       uint16_t urg:1;
+       uint16_t ack:1;
+       uint16_t psh:1;
+       uint16_t rst:1;
+       uint16_t syn:1;
+       uint16_t fin:1;
+#endif
+       uint16_t window;
+       uint16_t check;
+       uint16_t urg_ptr;
+
+       }; struct {
+#endif
+
+       uint16_t th_sport;
+       uint16_t th_dport;
+       uint32_t th_seq;
+       uint32_t th_ack;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+       uint8_t th_x2:4;
+       uint8_t th_off:4;
+#else
+       uint8_t th_off:4;
+       uint8_t th_x2:4;
+#endif
+       uint8_t th_flags;
+       uint16_t th_win;
+       uint16_t th_sum;
+       uint16_t th_urp;
+
+#ifdef _GNU_SOURCE
+       }; };
+#endif
+};
 #endif
-       u_int16_t window;
-       u_int16_t check;
-       u_int16_t urg_ptr;
+
+#ifdef _GNU_SOURCE
+#define TCPI_OPT_TIMESTAMPS    1
+#define TCPI_OPT_SACK          2
+#define TCPI_OPT_WSCALE                4
+#define TCPI_OPT_ECN           8
+
+#define TCP_CA_Open            0
+#define TCP_CA_Disorder                1
+#define TCP_CA_CWR             2
+#define TCP_CA_Recovery                3
+#define TCP_CA_Loss            4
+
+enum tcp_fastopen_client_fail {
+       TFO_STATUS_UNSPEC,
+       TFO_COOKIE_UNAVAILABLE,
+       TFO_DATA_NOT_ACKED,
+       TFO_SYN_RETRANSMITTED,
+};
+
+struct tcp_info {
+       uint8_t tcpi_state;
+       uint8_t tcpi_ca_state;
+       uint8_t tcpi_retransmits;
+       uint8_t tcpi_probes;
+       uint8_t tcpi_backoff;
+       uint8_t tcpi_options;
+       uint8_t tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
+       uint8_t tcpi_delivery_rate_app_limited : 1, tcpi_fastopen_client_fail : 2;
+       uint32_t tcpi_rto;
+       uint32_t tcpi_ato;
+       uint32_t tcpi_snd_mss;
+       uint32_t tcpi_rcv_mss;
+       uint32_t tcpi_unacked;
+       uint32_t tcpi_sacked;
+       uint32_t tcpi_lost;
+       uint32_t tcpi_retrans;
+       uint32_t tcpi_fackets;
+       uint32_t tcpi_last_data_sent;
+       uint32_t tcpi_last_ack_sent;
+       uint32_t tcpi_last_data_recv;
+       uint32_t tcpi_last_ack_recv;
+       uint32_t tcpi_pmtu;
+       uint32_t tcpi_rcv_ssthresh;
+       uint32_t tcpi_rtt;
+       uint32_t tcpi_rttvar;
+       uint32_t tcpi_snd_ssthresh;
+       uint32_t tcpi_snd_cwnd;
+       uint32_t tcpi_advmss;
+       uint32_t tcpi_reordering;
+       uint32_t tcpi_rcv_rtt;
+       uint32_t tcpi_rcv_space;
+       uint32_t tcpi_total_retrans;
+       uint64_t tcpi_pacing_rate;
+       uint64_t tcpi_max_pacing_rate;
+       uint64_t tcpi_bytes_acked;
+       uint64_t tcpi_bytes_received;
+       uint32_t tcpi_segs_out;
+       uint32_t tcpi_segs_in;
+       uint32_t tcpi_notsent_bytes;
+       uint32_t tcpi_min_rtt;
+       uint32_t tcpi_data_segs_in;
+       uint32_t tcpi_data_segs_out;
+       uint64_t tcpi_delivery_rate;
+       uint64_t tcpi_busy_time;
+       uint64_t tcpi_rwnd_limited;
+       uint64_t tcpi_sndbuf_limited;
+       uint32_t tcpi_delivered;
+       uint32_t tcpi_delivered_ce;
+       uint64_t tcpi_bytes_sent;
+       uint64_t tcpi_bytes_retrans;
+       uint32_t tcpi_dsack_dups;
+       uint32_t tcpi_reord_seen;
+       uint32_t tcpi_rcv_ooopack;
+       uint32_t tcpi_snd_wnd;
+};
+
+#define TCP_MD5SIG_MAXKEYLEN    80
+
+#define TCP_MD5SIG_FLAG_PREFIX  0x1
+#define TCP_MD5SIG_FLAG_IFINDEX 0x2
+
+struct tcp_md5sig {
+       struct sockaddr_storage tcpm_addr;
+       uint8_t tcpm_flags;
+       uint8_t tcpm_prefixlen;
+       uint16_t tcpm_keylen;
+       int tcpm_ifindex;
+       uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
+};
+
+struct tcp_diag_md5sig {
+       uint8_t tcpm_family;
+       uint8_t tcpm_prefixlen;
+       uint16_t tcpm_keylen;
+       uint32_t tcpm_addr[4];
+       uint8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
+};
+
+#define TCP_REPAIR_ON          1
+#define TCP_REPAIR_OFF         0
+#define TCP_REPAIR_OFF_NO_WP   -1
+
+struct tcp_repair_window {
+       uint32_t snd_wl1;
+       uint32_t snd_wnd;
+       uint32_t max_window;
+       uint32_t rcv_wnd;
+       uint32_t rcv_wup;
 };
+
+#define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1
+
+struct tcp_zerocopy_receive {
+       uint64_t address;
+       uint32_t length;
+       uint32_t recv_skip_hint;
+       uint32_t inq;
+       int32_t err;
+       uint64_t copybuf_address;
+       int32_t copybuf_len;
+       uint32_t flags;
+};
+
 #endif
 
 #endif