xnu-3248.60.10.tar.gz

[apple/xnu.git] / bsd / sys / socketvar.h

diff --git a/bsd/sys/socketvar.h b/bsd/sys/socketvar.h
index 423634ccacc97ade5e96ad61c4c1376b0de5c546..f83ffc529c9acde5768d3096c684061ab613d83f 100644 (file)
--- a/bsd/sys/socketvar.h
+++ b/bsd/sys/socketvar.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -150,6 +150,7 @@ struct msg_state {
 struct socket {
        int     so_zone;                /* zone we were allocated from */
        short   so_type;                /* generic type, see socket.h */
 struct socket {
        int     so_zone;                /* zone we were allocated from */
        short   so_type;                /* generic type, see socket.h */

+       u_short so_error;               /* error affecting connection */

        u_int32_t so_options;           /* from socket call, see socket.h */
        short   so_linger;              /* time to linger while closing */
        short   so_state;               /* internal state flags SS_*, below */
        u_int32_t so_options;           /* from socket call, see socket.h */
        short   so_linger;              /* time to linger while closing */
        short   so_state;               /* internal state flags SS_*, below */


@@ -175,7 +176,6 @@ struct socket {
                                           connections */
        short   so_qlimit;              /* max number queued connections */
        short   so_timeo;               /* connection timeout */
                                           connections */
        short   so_qlimit;              /* max number queued connections */
        short   so_timeo;               /* connection timeout */

-       u_short so_error;               /* error affecting connection */

        pid_t   so_pgid;                /* pgid for signals */
        u_int32_t so_oobmark;           /* chars to oob mark */
        /*
        pid_t   so_pgid;                /* pgid for signals */
        u_int32_t so_oobmark;           /* chars to oob mark */
        /*


@@ -193,15 +193,17 @@ struct socket {
                struct mbuf     *sb_lastrecord; /* first mbuf of last record */
                struct socket   *sb_so;         /* socket back ptr for kexts */
                struct selinfo  sb_sel;         /* process selecting rd/wr */
                struct mbuf     *sb_lastrecord; /* first mbuf of last record */
                struct socket   *sb_so;         /* socket back ptr for kexts */
                struct selinfo  sb_sel;         /* process selecting rd/wr */

-               u_int32_t       sb_flags;       /* flags, see below */

                struct timeval  sb_timeo;       /* timeout for read/write */
                struct timeval  sb_timeo;       /* timeout for read/write */

+               u_int32_t       sb_flags;       /* flags, see below */

                u_int32_t       sb_idealsize;   /* Ideal size for the sb based
                                                   on bandwidth and delay */
                void    (*sb_upcall)(struct socket *, void *arg, int waitf);
                void    *sb_upcallarg;          /* Arg for above */
                u_int32_t       sb_wantlock;    /* # of SB_LOCK waiters */
                u_int32_t       sb_waiters;     /* # of data/space waiters */
                u_int32_t       sb_idealsize;   /* Ideal size for the sb based
                                                   on bandwidth and delay */
                void    (*sb_upcall)(struct socket *, void *arg, int waitf);
                void    *sb_upcallarg;          /* Arg for above */
                u_int32_t       sb_wantlock;    /* # of SB_LOCK waiters */
                u_int32_t       sb_waiters;     /* # of data/space waiters */

-               u_int32_t       _reserved[2];   /* for future use */
+               thread_t        sb_cfil_thread; /* content filter thread */
+               u_int32_t       sb_cfil_refs;   /* # of nested calls */
+               u_int32_t       sb_preconn_hiwat;/* preconnect hiwat mark */

        } so_rcv, so_snd;
 #define        SB_MAX          (8192*1024)     /* default for max chars in sockbuf */
 #define LOW_SB_MAX     (2*9*1024)      /* lower limit on max socket buffer
        } so_rcv, so_snd;
 #define        SB_MAX          (8192*1024)     /* default for max chars in sockbuf */
 #define LOW_SB_MAX     (2*9*1024)      /* lower limit on max socket buffer


@@ -219,7 +221,6 @@ struct socket {
 #define        SB_AUTOSIZE     0x400           /* automatically size socket buffer */
 #define        SB_TRIM         0x800           /* Trim the socket buffer */
 #define        SB_NOCOMPRESS   0x1000          /* do not compress socket buffer */
 #define        SB_AUTOSIZE     0x400           /* automatically size socket buffer */
 #define        SB_TRIM         0x800           /* Trim the socket buffer */
 #define        SB_NOCOMPRESS   0x1000          /* do not compress socket buffer */

-

        caddr_t so_tpcb;                /* Misc. protocol control block, used
                                           by some kexts */
 
        caddr_t so_tpcb;                /* Misc. protocol control block, used
                                           by some kexts */
 


@@ -229,89 +230,113 @@ struct socket {
        /* NB: generation count must not be first; easiest to make it last. */
        so_gen_t so_gencnt;             /* generation count */
        TAILQ_HEAD(, eventqelt) so_evlist;
        /* NB: generation count must not be first; easiest to make it last. */
        so_gen_t so_gencnt;             /* generation count */
        TAILQ_HEAD(, eventqelt) so_evlist;

-       boolean_t       cached_in_sock_layer; /* bundled with inpcb and tcpcb */

        STAILQ_ENTRY(socket) so_cache_ent;      /* socache entry */
        STAILQ_ENTRY(socket) so_cache_ent;      /* socache entry */

-       u_int32_t       cache_timestamp;        /* time socket was cached */

        caddr_t         so_saved_pcb;   /* Saved pcb when cacheing */
        caddr_t         so_saved_pcb;   /* Saved pcb when cacheing */

+       u_int32_t       cache_timestamp;        /* time socket was cached */
+
+       pid_t           last_pid;       /* pid of most recent accessor */
+       u_int64_t       last_upid;      /* upid of most recent accessor */
+

        struct mbuf     *so_temp;       /* Holding area for outbound frags */
        /* Plug-in support - make the socket interface overridable */
        struct mbuf     *so_tail;
        struct socket_filter_entry *so_filt;    /* NKE hook */
        u_int32_t       so_flags;       /* Flags */
        struct mbuf     *so_temp;       /* Holding area for outbound frags */
        /* Plug-in support - make the socket interface overridable */
        struct mbuf     *so_tail;
        struct socket_filter_entry *so_filt;    /* NKE hook */
        u_int32_t       so_flags;       /* Flags */

-#define        SOF_NOSIGPIPE   0x1
-#define        SOF_NOADDRAVAIL 0x2     /* EADDRNOTAVAIL if src addr is gone */
-#define        SOF_PCBCLEARING 0x4     /* pru_disconnect done; don't call pru_detach */
-#define        SOF_DEFUNCT     0x8     /* socket marked as inactive */
-#define        SOF_CLOSEWAIT   0x10    /* blocked in close awaiting some events */
-#define SOF_REUSESHAREUID 0x40 /* Allows SO_REUSEADDR/SO_REUSEPORT
-                                  for multiple so_uid */
-#define        SOF_MULTIPAGES  0x80    /* jumbo clusters may be used for sosend */
-#define SOF_ABORTED    0x100   /* soabort was already called once */
-#define SOF_OVERFLOW   0x200   /* socket was dropped as overflow of listen q */
-#ifdef __APPLE_API_PRIVATE
-#define SOF_NOTIFYCONFLICT     0x400   /* notify that a bind was done on a
-                                          port already in use */
-#endif
-#define        SOF_UPCALLCLOSEWAIT     0x800   /* block close until upcall returns  */
-#define SOF_BINDRANDOMPORT     0x1000  /* Randomized port number for bind */
-#define SOF_NPX_SETOPTSHUT     0x2000  /* Non POSIX extension to allow
+#define        SOF_NOSIGPIPE           0x00000001
+#define        SOF_NOADDRAVAIL         0x00000002 /* EADDRNOTAVAIL if src addr is gone */
+#define        SOF_PCBCLEARING         0x00000004 /* pru_disconnect done; don't
+                                             call pru_detach */
+#define        SOF_DEFUNCT             0x00000008 /* socket marked as inactive */
+#define        SOF_CLOSEWAIT           0x00000010 /* blocked in close awaiting some events */
+#define SOF_REUSESHAREUID      0x00000040 /* Allows SO_REUSEADDR/SO_REUSEPORT
+                                             for multiple so_uid */
+#define        SOF_MULTIPAGES          0x00000080 /* jumbo clusters may be used for sosend */
+#define SOF_ABORTED            0x00000100 /* soabort was already called once */
+#define SOF_OVERFLOW           0x00000200 /* socket was dropped as overflow of
+                                             listen q */
+#define SOF_NOTIFYCONFLICT     0x00000400 /* notify that a bind was done on a
+                                             port already in use */
+#define        SOF_UPCALLCLOSEWAIT     0x00000800 /* block close until upcall returns */
+#define SOF_BINDRANDOMPORT     0x00001000 /* Randomized port number for bind */
+#define SOF_NPX_SETOPTSHUT     0x00002000 /* Non POSIX extension to allow

                                           setsockopt(2) after shut down */
                                           setsockopt(2) after shut down */

-#define SOF_RECV_TRAFFIC_CLASS 0x4000  /* Receive TC as ancillary data */
-#define        SOF_NODEFUNCT           0x8000  /* socket cannot be defunct'd */
-#define        SOF_PRIVILEGED_TRAFFIC_CLASS 0x10000 /* traffic class is privileged */
-#define SOF_SUSPENDED          0x20000 /* i/f output queue is suspended */
-#define SOF_INCOMP_INPROGRESS  0x40000 /* incomp socket is being processed */
-#define        SOF_NOTSENT_LOWAT       0x80000 /* A different lowat on not sent
-                                          data has been set */
-#define SOF_KNOTE      0x100000        /* socket is on the EV_SOCK klist */
-#define SOF_USELRO     0x200000        /* TCP must use LRO on these sockets */
-#define SOF_ENABLE_MSGS 0x400000       /* TCP must enable message delivery */
-#define SOF_FLOW_DIVERT        0x800000        /* Flow Divert is enabled */
-#define        SOF_MP_SUBFLOW  0x1000000       /* is a multipath subflow socket */
-#define SOF_MPTCP_TRUE  0x2000000 /* Established e2e MPTCP connection */
-#define SOF_MPTCP_CLIENT        0x4000000 /* Only client starts addtnal flows */
-#define SOF_MP_SEC_SUBFLOW      0x8000000 /* Set up secondary flow */
+#define SOF_RECV_TRAFFIC_CLASS 0x00004000 /* Receive TC as ancillary data */
+#define        SOF_NODEFUNCT           0x00008000 /* socket cannot be defunct'd */
+#define        SOF_PRIVILEGED_TRAFFIC_CLASS 0x00010000 /* traffic class is privileged */
+#define SOF_SUSPENDED          0x00020000 /* i/f output queue is suspended */
+#define SOF_INCOMP_INPROGRESS  0x00040000 /* incomp socket is being processed */
+#define        SOF_NOTSENT_LOWAT       0x00080000 /* A different lowat on not sent
+                                             data has been set */
+#define SOF_KNOTE              0x00100000 /* socket is on the EV_SOCK klist */
+#define SOF_USELRO             0x00200000 /* TCP must use LRO on these sockets */
+#define SOF_ENABLE_MSGS                0x00400000 /* TCP must enable message delivery */
+#define SOF_FLOW_DIVERT                0x00800000 /* Flow Divert is enabled */
+#define        SOF_MP_SUBFLOW          0x01000000 /* is a multipath subflow socket */
+#define SOF_MPTCP_TRUE                 0x02000000 /* Established e2e MPTCP connection */
+#define SOF_MPTCP_CLIENT        0x04000000 /* Only client starts addtnal flows */
+#define SOF_MP_SEC_SUBFLOW      0x08000000 /* Set up secondary flow */

 #define SOF_MP_TRYFAILOVER     0x10000000 /* Failing subflow */
 #define        SOF_DELEGATED           0x20000000 /* on behalf of another process */
 #define SOF_MP_TRYFAILOVER     0x10000000 /* Failing subflow */
 #define        SOF_DELEGATED           0x20000000 /* on behalf of another process */

+#define SOF_MPTCP_FASTJOIN     0x40000000 /* fast join support */
+#define        SOF_CONTENT_FILTER      0x80000000 /* Content filter enabled */
+

        uint32_t        so_upcallusecount; /* number of upcalls in progress */
        int             so_usecount;    /* refcounting of socket use */;
        int             so_retaincnt;
        u_int32_t       so_filteruse;   /* usecount for the socket filters */
        uint32_t        so_upcallusecount; /* number of upcalls in progress */
        int             so_usecount;    /* refcounting of socket use */;
        int             so_retaincnt;
        u_int32_t       so_filteruse;   /* usecount for the socket filters */

-       u_int32_t       so_traffic_mgt_flags;   /* traffic_mgt socket config */
+       u_int16_t       so_traffic_class;
+       u_int8_t        so_traffic_mgt_flags;   /* traffic_mgt socket config */
+       u_int8_t        so_restrictions;

        thread_t        so_send_filt_thread;
        thread_t        so_send_filt_thread;

-       u_int32_t       so_restrictions;

 
        /* for debug pruposes */
 #define        SO_LCKDBG_MAX 4 /* number of debug locking Link Registers recorded */
        void    *lock_lr[SO_LCKDBG_MAX];        /* locking calling history */
 
        /* for debug pruposes */
 #define        SO_LCKDBG_MAX 4 /* number of debug locking Link Registers recorded */
        void    *lock_lr[SO_LCKDBG_MAX];        /* locking calling history */

-       int     next_lock_lr;

        void    *unlock_lr[SO_LCKDBG_MAX];      /* unlocking caller history */
        void    *unlock_lr[SO_LCKDBG_MAX];      /* unlocking caller history */

-       int     next_unlock_lr;
-       void *reserved; /* reserved for future use */
+       u_int8_t        next_lock_lr;
+       u_int8_t        next_unlock_lr;
+
+       u_int16_t       so_pktheadroom; /* headroom before packet payload */
+
+       u_int32_t       so_ifdenied_notifies; /* # of notifications generated */

 
        struct label    *so_label;      /* MAC label for socket */
        struct label    *so_peerlabel;  /* cached MAC label for socket peer */
        thread_t        so_background_thread;   /* thread that marked
                                                   this socket background */
 
        struct label    *so_label;      /* MAC label for socket */
        struct label    *so_peerlabel;  /* cached MAC label for socket peer */
        thread_t        so_background_thread;   /* thread that marked
                                                   this socket background */

-       int             so_traffic_class;
-
-       u_int64_t       last_upid;      /* upid of most recent accessor */
-       pid_t           last_pid;       /* pid of most recent accessor */

        struct data_stats so_tc_stats[SO_TC_STATS_MAX];
        struct klist    so_klist;               /* klist for EV_SOCK events */
 
        struct msg_state *so_msg_state;         /* unordered snd/rcv state */
        struct flow_divert_pcb  *so_fd_pcb;     /* Flow Divert control block */
        struct data_stats so_tc_stats[SO_TC_STATS_MAX];
        struct klist    so_klist;               /* klist for EV_SOCK events */
 
        struct msg_state *so_msg_state;         /* unordered snd/rcv state */
        struct flow_divert_pcb  *so_fd_pcb;     /* Flow Divert control block */

+
+       struct cfil_info        *so_cfil;
+

        u_int32_t       so_eventmask;           /* event mask */
 
        u_int32_t       so_eventmask;           /* event mask */
 

-       u_int64_t       e_upid;         /* upid of the effective owner */

        pid_t           e_pid;          /* pid of the effective owner */
        pid_t           e_pid;          /* pid of the effective owner */

+       u_int64_t       e_upid;         /* upid of the effective owner */

 
        uuid_t          last_uuid;      /* uuid of most recent accessor */
        uuid_t          e_uuid;         /* uuid of effective owner */
 
        uuid_t          last_uuid;      /* uuid of most recent accessor */
        uuid_t          e_uuid;         /* uuid of effective owner */

+       uuid_t          so_vuuid;       /* UUID of the Voucher originator */

 
        int32_t         so_policy_gencnt; /* UUID policy gencnt */
 
        int32_t         so_policy_gencnt; /* UUID policy gencnt */

-       u_int32_t       so_ifdenied_notifies; /* # of notifications generated */
+
+       u_int32_t       so_flags1;
+#define SOF1_POST_FALLBACK_SYNC        0x00000001 /* fallback to TCP */
+#define        SOF1_AWDL_PRIVILEGED    0x00000002
+#define        SOF1_IF_2KCL            0x00000004 /* interface prefers 2 KB clusters */
+#define        SOF1_DEFUNCTINPROG      0x00000008
+#define SOF1_DATA_IDEMPOTENT   0x00000010 /* idempotent data for TFO */
+#define SOF1_PRECONNECT_DATA   0x00000020 /* request for preconnect data */
+#define        SOF1_EXTEND_BK_IDLE_WANTED      0x00000040 /* option set */
+#define        SOF1_EXTEND_BK_IDLE_INPROG      0x00000080 /* socket */
+#define        SOF1_CACHED_IN_SOCK_LAYER       0x00000100 /* bundled with inpcb and
+                                                     tcpcb */
+#define SOF1_TFO_REWIND                        0x00000200 /* rewind mptcp meta data */
+#define        SOF1_CELLFALLBACK       0x00000400 /* Initiated by cell fallback */
+       u_int64_t       so_extended_bk_start;

 };
 
 /* Control message accessor in mbufs */
 };
 
 /* Control message accessor in mbufs */


@@ -394,8 +419,8 @@ struct      xsocket {
        short                   so_linger;
        short                   so_state;
        _XSOCKET_PTR(caddr_t)   so_pcb;         /* another convenient handle */
        short                   so_linger;
        short                   so_state;
        _XSOCKET_PTR(caddr_t)   so_pcb;         /* another convenient handle */

-       int                             xso_protocol;
-       int                             xso_family;
+       int                     xso_protocol;
+       int                     xso_family;

        short                   so_qlen;
        short                   so_incqlen;
        short                   so_qlimit;
        short                   so_qlen;
        short                   so_incqlen;
        short                   so_qlimit;


@@ -403,8 +428,8 @@ struct      xsocket {
        u_short                 so_error;
        pid_t                   so_pgid;
        u_int32_t               so_oobmark;
        u_short                 so_error;
        pid_t                   so_pgid;
        u_int32_t               so_oobmark;

-       struct xsockbuf so_rcv;
-       struct xsockbuf so_snd;
+       struct xsockbuf         so_rcv;
+       struct xsockbuf         so_snd;

        uid_t                   so_uid;         /* XXX */
 };
 
        uid_t                   so_uid;         /* XXX */
 };
 


@@ -437,6 +462,9 @@ struct      xsocket64 {
 #define XSO_STATS      0x008
 #define XSO_INPCB      0x010
 #define XSO_TCPCB      0x020
 #define XSO_STATS      0x008
 #define XSO_INPCB      0x010
 #define XSO_TCPCB      0x020

+#define XSO_KCREG      0x040
+#define XSO_KCB                0x080
+#define XSO_EVT                0x100

 
 struct xsocket_n {
        u_int32_t               xso_len;        /* length of this structure */
 
 struct xsocket_n {
        u_int32_t               xso_len;        /* length of this structure */


@@ -447,8 +475,8 @@ struct      xsocket_n {
        short                   so_linger;
        short                   so_state;
        u_int64_t               so_pcb;         /* another convenient handle */
        short                   so_linger;
        short                   so_state;
        u_int64_t               so_pcb;         /* another convenient handle */

-       int                             xso_protocol;
-       int                             xso_family;
+       int                     xso_protocol;
+       int                     xso_family;

        short                   so_qlen;
        short                   so_incqlen;
        short                   so_qlimit;
        short                   so_qlen;
        short                   so_incqlen;
        short                   so_qlimit;


@@ -457,6 +485,8 @@ struct      xsocket_n {
        pid_t                   so_pgid;
        u_int32_t               so_oobmark;
        uid_t                   so_uid;         /* XXX */
        pid_t                   so_pgid;
        u_int32_t               so_oobmark;
        uid_t                   so_uid;         /* XXX */

+       pid_t                   so_last_pid;
+       pid_t                   so_e_pid;

 };
 
 struct xsockbuf_n {
 };
 
 struct xsockbuf_n {


@@ -476,6 +506,27 @@ struct xsockstat_n {
        u_int32_t               xst_kind;       /* XSO_STATS */
        struct data_stats       xst_tc_stats[SO_TC_STATS_MAX];
 };
        u_int32_t               xst_kind;       /* XSO_STATS */
        struct data_stats       xst_tc_stats[SO_TC_STATS_MAX];
 };

+
+/*
+ * Global socket statistics
+ */
+struct soextbkidlestat {
+       u_int32_t       so_xbkidle_maxperproc;
+       u_int32_t       so_xbkidle_time;
+       u_int32_t       so_xbkidle_rcvhiwat;
+       int32_t         so_xbkidle_notsupp;
+       int32_t         so_xbkidle_toomany;
+       int32_t         so_xbkidle_wantok;
+       int32_t         so_xbkidle_active;
+       int32_t         so_xbkidle_nocell;
+       int32_t         so_xbkidle_notime;
+       int32_t         so_xbkidle_forced;
+       int32_t         so_xbkidle_resumed;
+       int32_t         so_xbkidle_expired;
+       int32_t         so_xbkidle_resched;
+       int32_t         so_xbkidle_nodlgtd;
+       int32_t         so_xbkidle_drained;
+};

 #endif /* PRIVATE */
 
 #pragma pack()
 #endif /* PRIVATE */
 
 #pragma pack()


@@ -539,12 +590,16 @@ struct kextcb {
 #define        SO_FILT_HINT_MPFAILOVER 0x00008000      /* multipath failover */
 #define        SO_FILT_HINT_MPSTATUS   0x00010000      /* multipath status */
 #define SO_FILT_HINT_MUSTRST   0x00020000      /* must send RST and close */
 #define        SO_FILT_HINT_MPFAILOVER 0x00008000      /* multipath failover */
 #define        SO_FILT_HINT_MPSTATUS   0x00010000      /* multipath status */
 #define SO_FILT_HINT_MUSTRST   0x00020000      /* must send RST and close */

+#define SO_FILT_HINT_MPFASTJ   0x00040000      /* can do MPTCP fast join */
+#define SO_FILT_HINT_DELETEOK  0x00100000      /* Ok to delete socket */
+#define SO_FILT_HINT_MPCANTRCVMORE  0x00200000 /* MPTCP DFIN Received */

 
 #define        SO_FILT_HINT_BITS \
        "\020\1LOCKED\2CONNRESET\3CANTRCVMORE\4CANTSENDMORE\5TIMEOUT"   \
        "\6NOSRCADDR\7IFDENIED\10SUSPEND\11RESUME\12KEEPALIVE\13AWTIMO" \
 
 #define        SO_FILT_HINT_BITS \
        "\020\1LOCKED\2CONNRESET\3CANTRCVMORE\4CANTSENDMORE\5TIMEOUT"   \
        "\6NOSRCADDR\7IFDENIED\10SUSPEND\11RESUME\12KEEPALIVE\13AWTIMO" \

-       "\14ARTIMO\15CONNECTED\16DISCONNECTED\17CONNINFO_UPDATED" \
-       "\20MPFAILOVER\21MPSTATUS\22MUSTRST"
+       "\14ARTIMO\15CONNECTED\16DISCONNECTED\17CONNINFO_UPDATED"       \
+       "\20MPFAILOVER\21MPSTATUS\22MUSTRST\23MPFASTJ\25DELETEOK"       \
+       "\26MPCANTRCVMORE"

 
 /* Mask for hints that have corresponding kqueue events */
 #define SO_FILT_HINT_EV                                                        \
 
 /* Mask for hints that have corresponding kqueue events */
 #define SO_FILT_HINT_EV                                                        \


@@ -614,9 +669,11 @@ struct sf_buf {
 struct so_procinfo {
        pid_t           spi_pid;
        pid_t           spi_epid;
 struct so_procinfo {
        pid_t           spi_pid;
        pid_t           spi_epid;

+       uuid_t          spi_uuid;
+       uuid_t          spi_euuid;
+       int             spi_delegated;

 };
 
 };
 

-extern int maxsockets;

 extern u_int32_t sb_max;
 extern so_gen_t so_gencnt;
 extern int socket_debug;
 extern u_int32_t sb_max;
 extern so_gen_t so_gencnt;
 extern int socket_debug;


@@ -625,14 +682,19 @@ extern int sosendjcl_ignore_capab;
 extern int sodefunctlog;
 extern int sothrottlelog;
 extern int sorestrictrecv;
 extern int sodefunctlog;
 extern int sothrottlelog;
 extern int sorestrictrecv;

+extern int sorestrictsend;

 extern int somaxconn;
 extern uint32_t tcp_autosndbuf_max;
 extern u_int32_t sotcdb;
 extern u_int32_t net_io_policy_throttled;
 extern u_int32_t net_io_policy_log;
 extern int somaxconn;
 extern uint32_t tcp_autosndbuf_max;
 extern u_int32_t sotcdb;
 extern u_int32_t net_io_policy_throttled;
 extern u_int32_t net_io_policy_log;

+extern u_int32_t net_io_policy_throttle_best_effort;

 #if CONFIG_PROC_UUID_POLICY
 extern u_int32_t net_io_policy_uuid;
 #endif /* CONFIG_PROC_UUID_POLICY */
 #if CONFIG_PROC_UUID_POLICY
 extern u_int32_t net_io_policy_uuid;
 #endif /* CONFIG_PROC_UUID_POLICY */

+
+extern struct soextbkidlestat soextbkidlestat;
+

 #endif /* BSD_KERNEL_PRIVATE */
 
 struct mbuf;
 #endif /* BSD_KERNEL_PRIVATE */
 
 struct mbuf;


@@ -640,6 +702,18 @@ struct sockaddr;
 struct ucred;
 struct uio;
 
 struct ucred;
 struct uio;
 

+#define        SOCK_MSG_SA 0x01
+#define        SOCK_MSG_CONTROL 0x02
+#define        SOCK_MSG_DATA 0x04
+
+struct recv_msg_elem {
+       struct uio *uio;
+       struct sockaddr *psa;
+       struct mbuf *controlp;
+       int which;
+       int flags;
+};
+

 /*
  * From uipc_socket and friends
  */
 /*
  * From uipc_socket and friends
  */


@@ -657,6 +731,7 @@ extern int sodisconnect(struct socket *so);
 extern void sofree(struct socket *so);
 extern void sofreelastref(struct socket *, int);
 extern void soisconnected(struct socket *so);
 extern void sofree(struct socket *so);
 extern void sofreelastref(struct socket *, int);
 extern void soisconnected(struct socket *so);

+extern boolean_t socanwrite(struct socket *so);

 extern void soisconnecting(struct socket *so);
 extern void soisdisconnected(struct socket *so);
 extern void soisdisconnecting(struct socket *so);
 extern void soisconnecting(struct socket *so);
 extern void soisdisconnected(struct socket *so);
 extern void soisdisconnecting(struct socket *so);


@@ -669,9 +744,14 @@ extern int sooptcopyout(struct sockopt *sopt, void *data, size_t len);
 extern int soreceive(struct socket *so, struct sockaddr **paddr,
     struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp);
 extern int soreserve(struct socket *so, u_int32_t sndcc, u_int32_t rcvcc);
 extern int soreceive(struct socket *so, struct sockaddr **paddr,
     struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp);
 extern int soreserve(struct socket *so, u_int32_t sndcc, u_int32_t rcvcc);

+extern void soreserve_preconnect(struct socket *so, unsigned int pre_cc);

 extern void sorwakeup(struct socket *so);
 extern int sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
     struct mbuf *top, struct mbuf *control, int flags);
 extern void sorwakeup(struct socket *so);
 extern int sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
     struct mbuf *top, struct mbuf *control, int flags);

+extern int sosend_list(struct socket *so, struct uio **uio, u_int uiocnt, int flags);
+extern int soreceive_list(struct socket *so, struct recv_msg_elem *msgarray, u_int msgcnt,
+    int *flags);
+extern void sonullevent(struct socket *so, void *arg, uint32_t hint);

 __END_DECLS
 
 #ifdef BSD_KERNEL_PRIVATE
 __END_DECLS
 
 #ifdef BSD_KERNEL_PRIVATE


@@ -744,11 +824,11 @@ extern int soconnect(struct socket *so, struct sockaddr *nam);
 extern int soconnectlock(struct socket *so, struct sockaddr *nam, int dolock);
 extern int soconnect2(struct socket *so1, struct socket *so2);
 extern int soconnectxlocked(struct socket *so, struct sockaddr_list **src_sl,
 extern int soconnectlock(struct socket *so, struct sockaddr *nam, int dolock);
 extern int soconnect2(struct socket *so1, struct socket *so2);
 extern int soconnectxlocked(struct socket *so, struct sockaddr_list **src_sl,

-    struct sockaddr_list **dst_sl, struct proc *, uint32_t, associd_t,
-    connid_t *, uint32_t, void *, u_int32_t);
-extern int sodisconnectx(struct socket *so, associd_t, connid_t);
-extern int sodisconnectxlocked(struct socket *so, associd_t, connid_t);
-extern int sopeelofflocked(struct socket *so, associd_t, struct socket **);
+    struct sockaddr_list **dst_sl, struct proc *, uint32_t, sae_associd_t,
+    sae_connid_t *, uint32_t, void *, u_int32_t, uio_t, user_ssize_t*);
+extern int sodisconnectx(struct socket *so, sae_associd_t, sae_connid_t);
+extern int sodisconnectxlocked(struct socket *so, sae_associd_t, sae_connid_t);
+extern int sopeelofflocked(struct socket *so, sae_associd_t, struct socket **);

 extern void soevupcall(struct socket *, u_int32_t);
 /* flags for socreate_internal */
 #define        SOCF_ASYNC      0x1     /* non-blocking socket */
 extern void soevupcall(struct socket *, u_int32_t);
 /* flags for socreate_internal */
 #define        SOCF_ASYNC      0x1     /* non-blocking socket */


@@ -762,13 +842,20 @@ extern int sodisconnectlocked(struct socket *so);
 extern void soreference(struct socket *so);
 extern void sodereference(struct socket *so);
 extern void somultipages(struct socket *, boolean_t);
 extern void soreference(struct socket *so);
 extern void sodereference(struct socket *so);
 extern void somultipages(struct socket *, boolean_t);

+extern void soif2kcl(struct socket *, boolean_t);

 extern int sosetdefunct(struct proc *, struct socket *, int level, boolean_t);
 extern int sodefunct(struct proc *, struct socket *, int level);
 extern int sosetdefunct(struct proc *, struct socket *, int level, boolean_t);
 extern int sodefunct(struct proc *, struct socket *, int level);

+extern int soresume(struct proc *, struct socket *, int);
+extern void resume_proc_sockets(proc_t);
+extern int so_check_extended_bk_idle_time(struct socket *);
+extern void so_drain_extended_bk_idle(struct socket *);

 extern void sohasoutofband(struct socket *so);
 extern void sodisconnectwakeup(struct socket *so);
 extern int soisthrottled(struct socket *so);
 extern int soisprivilegedtraffic(struct socket *so);
 extern int soissrcbackground(struct socket *so);
 extern void sohasoutofband(struct socket *so);
 extern void sodisconnectwakeup(struct socket *so);
 extern int soisthrottled(struct socket *so);
 extern int soisprivilegedtraffic(struct socket *so);
 extern int soissrcbackground(struct socket *so);

+extern int soissrcrealtime(struct socket *so);
+extern int soissrcbesteffort(struct socket *so);

 extern int solisten(struct socket *so, int backlog);
 extern struct socket *sodropablereq(struct socket *head);
 extern int socket_lock(struct socket *so, int refcount);
 extern int solisten(struct socket *so, int backlog);
 extern struct socket *sodropablereq(struct socket *head);
 extern int socket_lock(struct socket *so, int refcount);


@@ -784,6 +871,7 @@ extern int sogetoptlock(struct socket *so, struct sockopt *sopt, int);
 extern int sosetoptlock(struct socket *so, struct sockopt *sopt, int);
 extern int soshutdown(struct socket *so, int how);
 extern int soshutdownlock(struct socket *so, int how);
 extern int sosetoptlock(struct socket *so, struct sockopt *sopt, int);
 extern int soshutdown(struct socket *so, int how);
 extern int soshutdownlock(struct socket *so, int how);

+extern int soshutdownlock_final(struct socket *so, int how);

 extern void sotoxsocket(struct socket *so, struct xsocket *xso);
 extern void sotoxsocket64(struct socket *so, struct xsocket64 *xso);
 extern int sosendallatonce(struct socket *so);
 extern void sotoxsocket(struct socket *so, struct xsocket *xso);
 extern void sotoxsocket64(struct socket *so, struct xsocket64 *xso);
 extern int sosendallatonce(struct socket *so);


@@ -815,6 +903,14 @@ extern struct sockaddr_list *sockaddrlist_dup(const struct sockaddr_list *,
 #define PKT_SCF_IPV6           0x00000001      /* IPv6 packet */
 #define PKT_SCF_TCP_ACK                0x00000002      /* Pure TCP ACK */
 
 #define PKT_SCF_IPV6           0x00000001      /* IPv6 packet */
 #define PKT_SCF_TCP_ACK                0x00000002      /* Pure TCP ACK */
 

+/*
+ * Flags for connectx(2) user-protocol request routine.
+ */
+
+#define        CONNREQF_MPTCP  0x1     /* called internally by MPTCP */
+#define CONNREQF_UIO   0x2     /* there's data */
+#define CONNREQF_IDEM  0x4     /* data is idempotent */
+

 extern void set_packet_service_class(struct mbuf *, struct socket *,
     mbuf_svc_class_t, u_int32_t);
 extern void so_tc_update_stats(struct mbuf *, struct socket *,
 extern void set_packet_service_class(struct mbuf *, struct socket *,
     mbuf_svc_class_t, u_int32_t);
 extern void so_tc_update_stats(struct mbuf *, struct socket *,


@@ -844,6 +940,7 @@ extern void so_set_lro(struct socket*, int);
 
 extern int so_isdstlocal(struct socket *);
 extern void so_recv_data_stat(struct socket *, struct mbuf *, size_t);
 
 extern int so_isdstlocal(struct socket *);
 extern void so_recv_data_stat(struct socket *, struct mbuf *, size_t);

+extern void so_inc_recv_data_stat(struct socket *, size_t, size_t, uint32_t);

 extern int so_wait_for_if_feedback(struct socket *);
 extern int msgq_sbspace(struct socket *so, struct mbuf *control);
 extern int soopt_getm(struct sockopt *sopt, struct mbuf **mp);
 extern int so_wait_for_if_feedback(struct socket *);
 extern int msgq_sbspace(struct socket *so, struct mbuf *control);
 extern int soopt_getm(struct sockopt *sopt, struct mbuf **mp);


@@ -851,13 +948,35 @@ extern int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m);
 extern int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
 extern boolean_t so_cache_timer(void);
 
 extern int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
 extern boolean_t so_cache_timer(void);
 

-extern void mptcp_preproc_sbdrop(struct mbuf *, unsigned int);
+extern void mptcp_preproc_sbdrop(struct socket *, struct mbuf *, unsigned int);

 extern void mptcp_postproc_sbdrop(struct mbuf *, u_int64_t, u_int32_t,
     u_int32_t);
 extern void mptcp_postproc_sbdrop(struct mbuf *, u_int64_t, u_int32_t,
     u_int32_t);

-extern void mptcp_adj_rmap(struct socket *, struct mbuf *);
+extern int mptcp_adj_rmap(struct socket *, struct mbuf *);

 
 extern void netpolicy_post_msg(uint32_t, struct netpolicy_event_data *,
     uint32_t);
 
 extern void netpolicy_post_msg(uint32_t, struct netpolicy_event_data *,
     uint32_t);

+extern void socket_post_kev_msg(uint32_t, struct kev_socket_event_data *,
+    uint32_t);
+extern void socket_post_kev_msg_closed(struct socket *);
+/* 
+ * Socket operation routines.
+ * These routines are called by the routines in
+ * sys_socket.c or from a system process, and
+ * implement the semantics of socket operations by
+ * switching out to the protocol specific routines.
+ */
+extern void postevent(struct socket *, struct sockbuf *, int);
+extern void evsofree(struct socket *);
+
+extern int tcp_notsent_lowat_check(struct socket *so);
+
+extern user_ssize_t uio_array_resid(struct uio **, u_int);
+extern user_ssize_t recv_msg_array_resid(struct recv_msg_elem *, u_int);
+
+void sotoxsocket_n(struct socket *, struct xsocket_n *);
+void sbtoxsockbuf_n(struct sockbuf *, struct xsockbuf_n *);
+void sbtoxsockstat_n(struct socket *, struct xsockstat_n *);
+

 __END_DECLS
 #endif /* BSD_KERNEL_PRIVATE */
 #endif /* KERNEL_PRIVATE */
 __END_DECLS
 #endif /* BSD_KERNEL_PRIVATE */
 #endif /* KERNEL_PRIVATE */