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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ***   To edit the content of this header, modify the corresponding
     11  ***   source file (e.g. under external/kernel-headers/original/) then
     12  ***   run bionic/libc/kernel/tools/update_all.py
     13  ***
     14  ***   Any manual change here will be lost the next time this script will
     15  ***   be run. You've been warned!
     16  ***
     17  ****************************************************************************
     18  ****************************************************************************/
     19 #ifndef _UAPI_LINUX_TCP_H
     20 #define _UAPI_LINUX_TCP_H
     21 #include <linux/types.h>
     22 #include <asm/byteorder.h>
     23 #include <linux/socket.h>
     24 struct tcphdr {
     25   __be16 source;
     26   __be16 dest;
     27   __be32 seq;
     28   __be32 ack_seq;
     29 #ifdef __LITTLE_ENDIAN_BITFIELD
     30   __u16 res1 : 4, doff : 4, fin : 1, syn : 1, rst : 1, psh : 1, ack : 1, urg : 1, ece : 1, cwr : 1;
     31 #elif defined(__BIG_ENDIAN_BITFIELD)
     32   __u16 doff : 4, res1 : 4, cwr : 1, ece : 1, urg : 1, ack : 1, psh : 1, rst : 1, syn : 1, fin : 1;
     33 #else
     34 #error "Adjust your <asm/byteorder.h> defines"
     35 #endif
     36   __be16 window;
     37   __sum16 check;
     38   __be16 urg_ptr;
     39 };
     40 union tcp_word_hdr {
     41   struct tcphdr hdr;
     42   __be32 words[5];
     43 };
     44 #define tcp_flag_word(tp) (((union tcp_word_hdr *) (tp))->words[3])
     45 enum {
     46   TCP_FLAG_CWR = __constant_cpu_to_be32(0x00800000),
     47   TCP_FLAG_ECE = __constant_cpu_to_be32(0x00400000),
     48   TCP_FLAG_URG = __constant_cpu_to_be32(0x00200000),
     49   TCP_FLAG_ACK = __constant_cpu_to_be32(0x00100000),
     50   TCP_FLAG_PSH = __constant_cpu_to_be32(0x00080000),
     51   TCP_FLAG_RST = __constant_cpu_to_be32(0x00040000),
     52   TCP_FLAG_SYN = __constant_cpu_to_be32(0x00020000),
     53   TCP_FLAG_FIN = __constant_cpu_to_be32(0x00010000),
     54   TCP_RESERVED_BITS = __constant_cpu_to_be32(0x0F000000),
     55   TCP_DATA_OFFSET = __constant_cpu_to_be32(0xF0000000)
     56 };
     57 #define TCP_MSS_DEFAULT 536U
     58 #define TCP_MSS_DESIRED 1220U
     59 #define TCP_NODELAY 1
     60 #define TCP_MAXSEG 2
     61 #define TCP_CORK 3
     62 #define TCP_KEEPIDLE 4
     63 #define TCP_KEEPINTVL 5
     64 #define TCP_KEEPCNT 6
     65 #define TCP_SYNCNT 7
     66 #define TCP_LINGER2 8
     67 #define TCP_DEFER_ACCEPT 9
     68 #define TCP_WINDOW_CLAMP 10
     69 #define TCP_INFO 11
     70 #define TCP_QUICKACK 12
     71 #define TCP_CONGESTION 13
     72 #define TCP_MD5SIG 14
     73 #define TCP_THIN_LINEAR_TIMEOUTS 16
     74 #define TCP_THIN_DUPACK 17
     75 #define TCP_USER_TIMEOUT 18
     76 #define TCP_REPAIR 19
     77 #define TCP_REPAIR_QUEUE 20
     78 #define TCP_QUEUE_SEQ 21
     79 #define TCP_REPAIR_OPTIONS 22
     80 #define TCP_FASTOPEN 23
     81 #define TCP_TIMESTAMP 24
     82 #define TCP_NOTSENT_LOWAT 25
     83 #define TCP_CC_INFO 26
     84 #define TCP_SAVE_SYN 27
     85 #define TCP_SAVED_SYN 28
     86 #define TCP_REPAIR_WINDOW 29
     87 #define TCP_FASTOPEN_CONNECT 30
     88 #define TCP_ULP 31
     89 #define TCP_MD5SIG_EXT 32
     90 #define TCP_FASTOPEN_KEY 33
     91 #define TCP_FASTOPEN_NO_COOKIE 34
     92 struct tcp_repair_opt {
     93   __u32 opt_code;
     94   __u32 opt_val;
     95 };
     96 struct tcp_repair_window {
     97   __u32 snd_wl1;
     98   __u32 snd_wnd;
     99   __u32 max_window;
    100   __u32 rcv_wnd;
    101   __u32 rcv_wup;
    102 };
    103 enum {
    104   TCP_NO_QUEUE,
    105   TCP_RECV_QUEUE,
    106   TCP_SEND_QUEUE,
    107   TCP_QUEUES_NR,
    108 };
    109 #define TCPI_OPT_TIMESTAMPS 1
    110 #define TCPI_OPT_SACK 2
    111 #define TCPI_OPT_WSCALE 4
    112 #define TCPI_OPT_ECN 8
    113 #define TCPI_OPT_ECN_SEEN 16
    114 #define TCPI_OPT_SYN_DATA 32
    115 enum tcp_ca_state {
    116   TCP_CA_Open = 0,
    117 #define TCPF_CA_Open (1 << TCP_CA_Open)
    118   TCP_CA_Disorder = 1,
    119 #define TCPF_CA_Disorder (1 << TCP_CA_Disorder)
    120   TCP_CA_CWR = 2,
    121 #define TCPF_CA_CWR (1 << TCP_CA_CWR)
    122   TCP_CA_Recovery = 3,
    123 #define TCPF_CA_Recovery (1 << TCP_CA_Recovery)
    124   TCP_CA_Loss = 4
    125 #define TCPF_CA_Loss (1 << TCP_CA_Loss)
    126 };
    127 struct tcp_info {
    128   __u8 tcpi_state;
    129   __u8 tcpi_ca_state;
    130   __u8 tcpi_retransmits;
    131   __u8 tcpi_probes;
    132   __u8 tcpi_backoff;
    133   __u8 tcpi_options;
    134   __u8 tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
    135   __u8 tcpi_delivery_rate_app_limited : 1;
    136   __u32 tcpi_rto;
    137   __u32 tcpi_ato;
    138   __u32 tcpi_snd_mss;
    139   __u32 tcpi_rcv_mss;
    140   __u32 tcpi_unacked;
    141   __u32 tcpi_sacked;
    142   __u32 tcpi_lost;
    143   __u32 tcpi_retrans;
    144   __u32 tcpi_fackets;
    145   __u32 tcpi_last_data_sent;
    146   __u32 tcpi_last_ack_sent;
    147   __u32 tcpi_last_data_recv;
    148   __u32 tcpi_last_ack_recv;
    149   __u32 tcpi_pmtu;
    150   __u32 tcpi_rcv_ssthresh;
    151   __u32 tcpi_rtt;
    152   __u32 tcpi_rttvar;
    153   __u32 tcpi_snd_ssthresh;
    154   __u32 tcpi_snd_cwnd;
    155   __u32 tcpi_advmss;
    156   __u32 tcpi_reordering;
    157   __u32 tcpi_rcv_rtt;
    158   __u32 tcpi_rcv_space;
    159   __u32 tcpi_total_retrans;
    160   __u64 tcpi_pacing_rate;
    161   __u64 tcpi_max_pacing_rate;
    162   __u64 tcpi_bytes_acked;
    163   __u64 tcpi_bytes_received;
    164   __u32 tcpi_segs_out;
    165   __u32 tcpi_segs_in;
    166   __u32 tcpi_notsent_bytes;
    167   __u32 tcpi_min_rtt;
    168   __u32 tcpi_data_segs_in;
    169   __u32 tcpi_data_segs_out;
    170   __u64 tcpi_delivery_rate;
    171   __u64 tcpi_busy_time;
    172   __u64 tcpi_rwnd_limited;
    173   __u64 tcpi_sndbuf_limited;
    174 };
    175 enum {
    176   TCP_NLA_PAD,
    177   TCP_NLA_BUSY,
    178   TCP_NLA_RWND_LIMITED,
    179   TCP_NLA_SNDBUF_LIMITED,
    180   TCP_NLA_DATA_SEGS_OUT,
    181   TCP_NLA_TOTAL_RETRANS,
    182   TCP_NLA_PACING_RATE,
    183   TCP_NLA_DELIVERY_RATE,
    184   TCP_NLA_SND_CWND,
    185   TCP_NLA_REORDERING,
    186   TCP_NLA_MIN_RTT,
    187   TCP_NLA_RECUR_RETRANS,
    188   TCP_NLA_DELIVERY_RATE_APP_LMT,
    189 };
    190 #define TCP_MD5SIG_MAXKEYLEN 80
    191 #define TCP_MD5SIG_FLAG_PREFIX 1
    192 struct tcp_md5sig {
    193   struct sockaddr_storage tcpm_addr;
    194   __u8 tcpm_flags;
    195   __u8 tcpm_prefixlen;
    196   __u16 tcpm_keylen;
    197   __u32 __tcpm_pad;
    198   __u8 tcpm_key[TCP_MD5SIG_MAXKEYLEN];
    199 };
    200 struct tcp_diag_md5sig {
    201   __u8 tcpm_family;
    202   __u8 tcpm_prefixlen;
    203   __u16 tcpm_keylen;
    204   __be32 tcpm_addr[4];
    205   __u8 tcpm_key[TCP_MD5SIG_MAXKEYLEN];
    206 };
    207 #endif
    208