xnu-3789.31.2.tar.gz

[apple/xnu.git] / bsd / netinet / in_pcb.h

diff --git a/bsd/netinet/in_pcb.h b/bsd/netinet/in_pcb.h
index b7e4c9cfdca836a9b13f87d503722dceeb7b8b74..05fd56a3519a25dd76bdab4a9baa43f7ced15aea 100644 (file)
--- a/bsd/netinet/in_pcb.h
+++ b/bsd/netinet/in_pcb.h
@@ -1,31 +1,29 @@
 /*
 /*

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

  *
  *

- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
- * 
- * This file contains Original Code and/or Modifications of Original Code 
- * as defined in and that are subject to the Apple Public Source License 
- * Version 2.0 (the 'License'). You may not use this file except in 
- * compliance with the License.  The rights granted to you under the 
- * License may not be used to create, or enable the creation or 
- * redistribution of, unlawful or unlicensed copies of an Apple operating 
- * system, or to circumvent, violate, or enable the circumvention or 
- * violation of, any terms of an Apple operating system software license 
- * agreement.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  *
  *

- * Please obtain a copy of the License at 
- * http://www.opensource.apple.com/apsl/ and read it before using this 
- * file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.

  *
  *

- * The Original Code and all software distributed under the License are 
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
- * Please see the License for the specific language governing rights and 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and

  * limitations under the License.
  *
  * limitations under the License.
  *

- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /*
  * Copyright (c) 1982, 1986, 1990, 1993
  */
 /*
  * Copyright (c) 1982, 1986, 1990, 1993


@@ -62,49 +60,60 @@
  *     @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
  * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $
  */
  *     @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
  * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $
  */

+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */

 
 #ifndef _NETINET_IN_PCB_H_
 
 #ifndef _NETINET_IN_PCB_H_

-#define _NETINET_IN_PCB_H_
+#define        _NETINET_IN_PCB_H_

 #include <sys/appleapiopts.h>
 
 #include <sys/types.h>
 #include <sys/queue.h>
 #include <sys/appleapiopts.h>
 
 #include <sys/types.h>
 #include <sys/queue.h>

-#ifdef KERNEL_PRIVATE
-#ifdef KERNEL
+#ifdef BSD_KERNEL_PRIVATE
+#include <sys/bitstring.h>
+#include <sys/tree.h>

 #include <kern/locks.h>
 #include <kern/locks.h>

-#endif
-#endif /* KERNEL_PRIVATE */
+#include <kern/zalloc.h>
+#endif /* BSD_KERNEL_PRIVATE */

 
 #include <netinet6/ipsec.h> /* for IPSEC */
 
 #include <netinet6/ipsec.h> /* for IPSEC */

+#if NECP
+#include <net/necp.h>
+#endif

 
 

-#ifdef KERNEL_PRIVATE
-
-#define        in6pcb          inpcb   /* for KAME src sync over BSD*'s */
-#define        in6p_sp         inp_sp  /* for KAME src sync over BSD*'s */
+#if IPSEC
+#include <netinet6/ipsec.h> /* for IPSEC */
+#endif

 
 

+#ifdef BSD_KERNEL_PRIVATE

 /*
 /*

- * Common structure pcb for internet protocol implementation.
- * Here are stored pointers to local and foreign host table
- * entries, local and foreign socket numbers, and pointers
- * up (to a socket structure) and down (to a protocol-specific)
- * control block.
+ * struct inpcb is the common protocol control block structure used in most
+ * IP transport protocols.
+ *
+ * Pointers to local and foreign host table entries, local and foreign socket
+ * numbers, and pointers up (to a socket structure) and down (to a
+ * protocol-specific control block) are stored here.

  */
 LIST_HEAD(inpcbhead, inpcb);
 LIST_HEAD(inpcbporthead, inpcbport);
  */
 LIST_HEAD(inpcbhead, inpcb);
 LIST_HEAD(inpcbporthead, inpcbport);

-#endif /* KERNEL_PRIVATE */
+#endif /* BSD_KERNEL_PRIVATE */

 typedef        u_quad_t        inp_gen_t;
 
 /*
  * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
 typedef        u_quad_t        inp_gen_t;
 
 /*
  * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.

- * So, AF_INET6 null laddr is also used as AF_INET null laddr,
- * by utilize following structure. (At last, same as INRIA)
+ * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing
+ * the following structure.

  */
 struct in_addr_4in6 {
        u_int32_t       ia46_pad32[3];
        struct  in_addr ia46_addr4;
 };
 
  */
 struct in_addr_4in6 {
        u_int32_t       ia46_pad32[3];
        struct  in_addr ia46_addr4;
 };
 

-#ifdef KERNEL_PRIVATE
+#ifdef BSD_KERNEL_PRIVATE

 /*
  * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
  * of the structure.  Therefore, it is important that the members in
 /*
  * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
  * of the structure.  Therefore, it is important that the members in


@@ -112,44 +121,68 @@ struct in_addr_4in6 {
  * stable.
  */
 struct icmp6_filter;
  * stable.
  */
 struct icmp6_filter;

+#if CONFIG_MACF_NET
+struct label;
+#endif
+struct ifnet;
+
+struct inp_stat {
+       u_int64_t       rxpackets;
+       u_int64_t       rxbytes;
+       u_int64_t       txpackets;
+       u_int64_t       txbytes;
+};

 
 

+/*
+ * struct inpcb captures the network layer state for TCP, UDP and raw IPv6
+ * and IPv6 sockets.  In the case of TCP, further per-connection state is
+ * hung off of inp_ppcb most of the time.
+ */

 struct inpcb {
 struct inpcb {

+       decl_lck_mtx_data(, inpcb_mtx); /* inpcb per-socket mutex */

        LIST_ENTRY(inpcb) inp_hash;     /* hash list */
        LIST_ENTRY(inpcb) inp_hash;     /* hash list */

-       int             inp_wantcnt;            /* pcb wanted count. protected by pcb list lock */
-       int             inp_state;              /* state of this pcb, in use, recycled, ready for recycling... */
-       u_short inp_fport;              /* foreign port */
-       u_short inp_lport;              /* local port */

        LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */
        LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */

-       caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
-       struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
-       struct  socket *inp_socket;     /* back pointer to socket */
-       u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
-       u_long  nat_cookie;             /* Cookie stored and returned to NAT */
+       void    *inp_ppcb;              /* pointer to per-protocol pcb */
+       struct inpcbinfo *inp_pcbinfo;  /* PCB list info */
+       struct socket *inp_socket;      /* back pointer to socket */

        LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */
        LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */

-       struct  inpcbport *inp_phd;     /* head of this list */
+       RB_ENTRY(inpcb) infc_link;      /* link for flowhash RB tree */
+       struct inpcbport *inp_phd;      /* head of this list */

        inp_gen_t inp_gencnt;           /* generation count of this instance */
        inp_gen_t inp_gencnt;           /* generation count of this instance */

-       int     inp_flags;              /* generic IP/datagram flags */
-       u_int32_t inp_flow;
+       int     inp_hash_element;       /* array index of pcb's hash list */
+       int     inp_wantcnt;            /* wanted count; atomically updated */
+       int     inp_state;              /* state (INUSE/CACHED/DEAD) */
+       u_short inp_fport;              /* foreign port */
+       u_short inp_lport;              /* local port */
+       u_int32_t inp_flags;            /* generic IP/datagram flags */
+       u_int32_t inp_flags2;           /* generic IP/datagram flags #2 */
+       u_int32_t inp_flow;             /* IPv6 flow information */

 
 

-       u_char  inp_vflag;      /* INP_IPV4 or INP_IPV6 */
+       u_char  inp_sndinprog_cnt;      /* outstanding send operations */
+       u_char  inp_vflag;              /* INP_IPV4 or INP_IPV6 */

 
        u_char inp_ip_ttl;              /* time to live proto */
        u_char inp_ip_p;                /* protocol proto */
 
        u_char inp_ip_ttl;              /* time to live proto */
        u_char inp_ip_p;                /* protocol proto */

-       /* protocol dependent part */
+
+       struct ifnet *inp_boundifp;     /* interface for INP_BOUND_IF */
+       struct ifnet *inp_last_outifp;  /* last known outgoing interface */
+       u_int32_t inp_flowhash;         /* flow hash */
+
+       /* Protocol-dependent part */

        union {
                /* foreign host table entry */
        union {
                /* foreign host table entry */

-               struct  in_addr_4in6 inp46_foreign;
-               struct  in6_addr inp6_foreign;
+               struct in_addr_4in6 inp46_foreign;
+               struct in6_addr inp6_foreign;

        } inp_dependfaddr;
        union {
                /* local host table entry */
        } inp_dependfaddr;
        union {
                /* local host table entry */

-               struct  in_addr_4in6 inp46_local;
-               struct  in6_addr inp6_local;
+               struct in_addr_4in6 inp46_local;
+               struct in6_addr inp6_local;

        } inp_dependladdr;
        union {
                /* placeholder for routing entry */
        } inp_dependladdr;
        union {
                /* placeholder for routing entry */

-               struct  route inp4_route;
-               struct  route_in6 inp6_route;
+               struct route inp4_route;
+               struct route_in6 inp6_route;

        } inp_dependroute;
        struct {
                /* type of service proto */
        } inp_dependroute;
        struct {
                /* type of service proto */


@@ -162,9 +195,6 @@ struct inpcb {
        struct {
                /* IP options */
                struct mbuf *inp6_options;
        struct {
                /* IP options */
                struct mbuf *inp6_options;

-               u_int8_t        inp6_hlim;
-               u_int8_t        unused_uint8_1;
-               ushort  unused_uint16_1;

                /* IP6 options for outgoing packets */
                struct  ip6_pktopts *inp6_outputopts;
                /* IP multicast options */
                /* IP6 options for outgoing packets */
                struct  ip6_pktopts *inp6_outputopts;
                /* IP multicast options */


@@ -173,129 +203,162 @@ struct inpcb {
                struct  icmp6_filter *inp6_icmp6filt;
                /* IPV6_CHECKSUM setsockopt */
                int     inp6_cksum;
                struct  icmp6_filter *inp6_icmp6filt;
                /* IPV6_CHECKSUM setsockopt */
                int     inp6_cksum;

-               u_short inp6_ifindex;

                short   inp6_hops;
        } inp_depend6;
 
                short   inp6_hops;
        } inp_depend6;
 

-       int     hash_element;           /* Array index of pcb's hash list    */

        caddr_t inp_saved_ppcb;         /* place to save pointer while cached */
        caddr_t inp_saved_ppcb;         /* place to save pointer while cached */

-       struct inpcbpolicy *inp_sp;
-#ifdef _KERN_LOCKS_H_
-       lck_mtx_t *inpcb_mtx;   /* inpcb per-socket mutex */
-#else
-       void      *inpcb_mtx;
+#if CONFIG_MACF_NET
+       struct label *inp_label;        /* MAC label */
+#endif
+#if IPSEC
+       struct inpcbpolicy *inp_sp;     /* for IPSec */
+#endif /* IPSEC */
+#if NECP
+       struct {
+               char *inp_domain;
+               char *inp_account;
+       } inp_necp_attributes;
+       struct necp_inpcb_result inp_policyresult;

 #endif
 #endif

-       u_long  reserved[2];            /* For future use */
+       u_char *inp_keepalive_data;     /* for keepalive offload */
+       u_int8_t inp_keepalive_datalen; /* keepalive data length */
+       u_int8_t inp_keepalive_type;    /* type of application */
+       u_int16_t inp_keepalive_interval; /* keepalive interval */
+       uint32_t inp_nstat_refcnt __attribute__((aligned(4)));
+       struct inp_stat *inp_stat;
+       struct inp_stat *inp_cstat;     /* cellular data */
+       struct inp_stat *inp_wstat;     /* Wi-Fi data */
+       struct inp_stat *inp_Wstat;     /* Wired data */
+       u_int8_t inp_stat_store[sizeof (struct inp_stat) + sizeof (u_int64_t)];
+       u_int8_t inp_cstat_store[sizeof (struct inp_stat) + sizeof (u_int64_t)];
+       u_int8_t inp_wstat_store[sizeof (struct inp_stat) + sizeof (u_int64_t)];
+       u_int8_t inp_Wstat_store[sizeof (struct inp_stat) + sizeof (u_int64_t)];

 };
 
 };
 

-#endif /* KERNEL_PRIVATE */
-
-/*
- * The range of the generation count, as used in this implementation,
- * is 9e19.  We would have to create 300 billion connections per
- * second for this number to roll over in a year.  This seems sufficiently
- * unlikely that we simply don't concern ourselves with that possibility.
- */
+#define        INP_ADD_STAT(_inp, _cnt_cellular, _cnt_wifi, _cnt_wired, _a, _n)\
+do {                                                                   \
+       locked_add_64(&((_inp)->inp_stat->_a), (_n));                   \
+       if (_cnt_cellular)                                              \
+               locked_add_64(&((_inp)->inp_cstat->_a), (_n));          \
+       if (_cnt_wifi)                                                  \
+               locked_add_64(&((_inp)->inp_wstat->_a), (_n));          \
+       if (_cnt_wired)                                                 \
+               locked_add_64(&((_inp)->inp_Wstat->_a), (_n));          \
+} while (0);
+#endif /* BSD_KERNEL_PRIVATE */

 
 /*
  * Interface exported to userland by various protocols which use
  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
  */
 
 /*
  * Interface exported to userland by various protocols which use
  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
  */

+#pragma pack(4)

 
 

+#if defined(__LP64__)
+struct _inpcb_list_entry {
+    u_int32_t  le_next;
+    u_int32_t  le_prev;
+};
+#define        _INPCB_PTR(x)           u_int32_t
+#define        _INPCB_LIST_ENTRY(x)    struct _inpcb_list_entry
+#else /* !__LP64__ */
+#define        _INPCB_PTR(x)           x
+#define        _INPCB_LIST_ENTRY(x)    LIST_ENTRY(x)
+#endif /* !__LP64__ */
+
+#ifdef XNU_KERNEL_PRIVATE

 /*
  * This is a copy of the inpcb as it shipped in Panther. This structure
  * is filled out in a copy function. This allows the inpcb to change
  * without breaking userland tools.
 /*
  * This is a copy of the inpcb as it shipped in Panther. This structure
  * is filled out in a copy function. This allows the inpcb to change
  * without breaking userland tools.

- * 
+ *

  * CAUTION: Many fields may not be filled out. Fewer may be filled out
  * in the future. Code defensively.
  */
  * CAUTION: Many fields may not be filled out. Fewer may be filled out
  * in the future. Code defensively.
  */

-#ifdef KERNEL_PRIVATE

 struct inpcb_compat {
 #else
 struct inpcbinfo;
 struct inpcbport;
 struct mbuf;
 struct inpcb_compat {
 #else
 struct inpcbinfo;
 struct inpcbport;
 struct mbuf;

-struct ip6_pktopts;
-struct ip6_moptions;
-struct icmp6_filter;
+struct ip6_pktopts;
+struct ip6_moptions;
+struct icmp6_filter;

 struct inpcbpolicy;
 
 struct inpcb {
 #endif /* KERNEL_PRIVATE */
 struct inpcbpolicy;
 
 struct inpcb {
 #endif /* KERNEL_PRIVATE */

-       LIST_ENTRY(inpcb) inp_hash;     /* hash list */
-       struct  in_addr reserved1;      /* APPLE reserved: inp_faddr defined in protcol indep. part */
-       struct  in_addr reserved2; /* APPLE reserved */
-       u_short inp_fport;              /* foreign port */
-       u_short inp_lport;              /* local port */
-       LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */
-       caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
-       struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
-       void*   inp_socket;     /* back pointer to socket */
-       u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
-       u_long  nat_cookie;             /* Cookie stored and returned to NAT */
-       LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */
-       struct  inpcbport *inp_phd;     /* head of this list */
+       _INPCB_LIST_ENTRY(inpcb) inp_hash;      /* hash list */
+       struct in_addr reserved1;               /* reserved */
+       struct in_addr reserved2;               /* reserved */
+       u_short inp_fport;                      /* foreign port */
+       u_short inp_lport;                      /* local port */
+       _INPCB_LIST_ENTRY(inpcb) inp_list;      /* list for all peer PCBs */
+       _INPCB_PTR(caddr_t) inp_ppcb;           /* per-protocol pcb */
+       _INPCB_PTR(struct inpcbinfo *) inp_pcbinfo;     /* PCB list info */
+       _INPCB_PTR(void *) inp_socket;  /* back pointer to socket */
+       u_char nat_owner;               /* Used to NAT TCP/UDP traffic */
+       u_int32_t nat_cookie;           /* Cookie stored and returned to NAT */
+       _INPCB_LIST_ENTRY(inpcb) inp_portlist;  /* this PCB's local port list */
+       _INPCB_PTR(struct inpcbport *) inp_phd; /* head of this list */

        inp_gen_t inp_gencnt;           /* generation count of this instance */
        inp_gen_t inp_gencnt;           /* generation count of this instance */

-       int     inp_flags;              /* generic IP/datagram flags */
+       int inp_flags;                  /* generic IP/datagram flags */

        u_int32_t inp_flow;
 
        u_int32_t inp_flow;
 

-       u_char  inp_vflag;
+       u_char inp_vflag;

 
        u_char inp_ip_ttl;              /* time to live proto */
        u_char inp_ip_p;                /* protocol proto */
        /* protocol dependent part */
        union {
                /* foreign host table entry */
 
        u_char inp_ip_ttl;              /* time to live proto */
        u_char inp_ip_p;                /* protocol proto */
        /* protocol dependent part */
        union {
                /* foreign host table entry */

-               struct  in_addr_4in6 inp46_foreign;
-               struct  in6_addr inp6_foreign;
+               struct in_addr_4in6 inp46_foreign;
+               struct in6_addr inp6_foreign;

        } inp_dependfaddr;
        union {
                /* local host table entry */
        } inp_dependfaddr;
        union {
                /* local host table entry */

-               struct  in_addr_4in6 inp46_local;
-               struct  in6_addr inp6_local;
+               struct in_addr_4in6 inp46_local;
+               struct in6_addr inp6_local;

        } inp_dependladdr;
        union {
                /* placeholder for routing entry */
        } inp_dependladdr;
        union {
                /* placeholder for routing entry */

-               u_char  inp4_route[20];
-               u_char  inp6_route[32];
+               u_char inp4_route[20];
+               u_char inp6_route[32];

        } inp_dependroute;
        struct {
                /* type of service proto */
                u_char inp4_ip_tos;
                /* IP options */
        } inp_dependroute;
        struct {
                /* type of service proto */
                u_char inp4_ip_tos;
                /* IP options */

-               struct mbuf *inp4_options;
+               _INPCB_PTR(struct mbuf *) inp4_options;

                /* IP multicast options */
                /* IP multicast options */

-               struct ip_moptions *inp4_moptions;
+               _INPCB_PTR(struct ip_moptions *) inp4_moptions;

        } inp_depend4;
 
        struct {
                /* IP options */
        } inp_depend4;
 
        struct {
                /* IP options */

-               struct mbuf *inp6_options;
-               u_int8_t        inp6_hlim;
-               u_int8_t        unused_uint8_1;
-               ushort  unused_uint16_1;
+               _INPCB_PTR(struct mbuf *) inp6_options;
+               u_int8_t inp6_hlim;
+               u_int8_t unused_uint8_1;
+               ushort unused_uint16_1;

                /* IP6 options for outgoing packets */
                /* IP6 options for outgoing packets */

-               struct  ip6_pktopts *inp6_outputopts;
+               _INPCB_PTR(struct ip6_pktopts *) inp6_outputopts;

                /* IP multicast options */
                /* IP multicast options */

-               struct  ip6_moptions *inp6_moptions;
+               _INPCB_PTR(struct ip6_moptions *) inp6_moptions;

                /* ICMPv6 code type filter */
                /* ICMPv6 code type filter */

-               struct  icmp6_filter *inp6_icmp6filt;
+               _INPCB_PTR(struct icmp6_filter *) inp6_icmp6filt;

                /* IPV6_CHECKSUM setsockopt */
                int     inp6_cksum;
                u_short inp6_ifindex;
                short   inp6_hops;
        } inp_depend6;
 
                /* IPV6_CHECKSUM setsockopt */
                int     inp6_cksum;
                u_short inp6_ifindex;
                short   inp6_hops;
        } inp_depend6;
 

-       int     hash_element;           /* Array index of pcb's hash list    */
-       caddr_t inp_saved_ppcb;         /* place to save pointer while cached */
-       struct inpcbpolicy *inp_sp;
-       u_long  reserved[3];            /* For future use */
+       int hash_element;               /* Array index of pcb's hash list */
+       _INPCB_PTR(caddr_t) inp_saved_ppcb; /* pointer while cached */
+       _INPCB_PTR(struct inpcbpolicy *) inp_sp;
+       u_int32_t       reserved[3];    /* reserved */

 };
 
 struct xinpcb {
 };
 
 struct xinpcb {

-       size_t  xi_len;         /* length of this structure */
-#ifdef KERNEL_PRIVATE
+       u_int32_t       xi_len;         /* length of this structure */
+#ifdef XNU_KERNEL_PRIVATE

        struct  inpcb_compat xi_inp;
 #else
        struct  inpcb xi_inp;
        struct  inpcb_compat xi_inp;
 #else
        struct  inpcb xi_inp;


@@ -304,240 +367,466 @@ struct  xinpcb {
        u_quad_t        xi_alignment_hack;
 };
 
        u_quad_t        xi_alignment_hack;
 };
 

+struct inpcb64_list_entry {
+    u_int64_t   le_next;
+    u_int64_t   le_prev;
+};
+
+struct xinpcb64 {
+       u_int64_t       xi_len;         /* length of this structure */
+       u_int64_t       xi_inpp;
+       u_short         inp_fport;      /* foreign port */
+       u_short         inp_lport;      /* local port */
+       struct inpcb64_list_entry inp_list; /* list for all PCBs */
+       u_int64_t       inp_ppcb;       /* ptr to per-protocol PCB */
+       u_int64_t       inp_pcbinfo;    /* PCB list info */
+       struct inpcb64_list_entry inp_portlist; /* this PCB's local port list */
+       u_int64_t       inp_phd;        /* head of this list */
+       inp_gen_t       inp_gencnt;     /* current generation count */
+       int             inp_flags;      /* generic IP/datagram flags */
+       u_int32_t       inp_flow;
+       u_char          inp_vflag;
+       u_char          inp_ip_ttl;     /* time to live */
+       u_char          inp_ip_p;       /* protocol */
+       union {                         /* foreign host table entry */
+               struct  in_addr_4in6    inp46_foreign;
+               struct  in6_addr        inp6_foreign;
+       } inp_dependfaddr;
+       union {                         /* local host table entry */
+               struct  in_addr_4in6    inp46_local;
+               struct  in6_addr        inp6_local;
+       } inp_dependladdr;
+       struct {
+               u_char  inp4_ip_tos;    /* type of service */
+       } inp_depend4;
+       struct {
+               u_int8_t inp6_hlim;
+               int     inp6_cksum;
+               u_short inp6_ifindex;
+               short   inp6_hops;
+       } inp_depend6;
+       struct  xsocket64 xi_socket;
+       u_quad_t        xi_alignment_hack;
+};
+
+#ifdef PRIVATE
+struct xinpcb_list_entry {
+    u_int64_t   le_next;
+    u_int64_t   le_prev;
+};
+
+struct xinpcb_n {
+       u_int32_t       xi_len;         /* length of this structure */
+       u_int32_t       xi_kind;        /* XSO_INPCB */
+       u_int64_t       xi_inpp;
+       u_short         inp_fport;      /* foreign port */
+       u_short         inp_lport;      /* local port */
+       u_int64_t       inp_ppcb;       /* pointer to per-protocol pcb */
+       inp_gen_t       inp_gencnt;     /* generation count of this instance */
+       int             inp_flags;      /* generic IP/datagram flags */
+       u_int32_t       inp_flow;
+       u_char          inp_vflag;
+       u_char          inp_ip_ttl;     /* time to live */
+       u_char          inp_ip_p;       /* protocol */
+       union {                         /* foreign host table entry */
+               struct in_addr_4in6     inp46_foreign;
+               struct in6_addr         inp6_foreign;
+       } inp_dependfaddr;
+       union {                         /* local host table entry */
+               struct in_addr_4in6     inp46_local;
+               struct in6_addr         inp6_local;
+       } inp_dependladdr;
+       struct {
+               u_char  inp4_ip_tos;    /* type of service */
+       } inp_depend4;
+       struct {
+               u_int8_t inp6_hlim;
+               int     inp6_cksum;
+               u_short inp6_ifindex;
+               short   inp6_hops;
+       } inp_depend6;
+       u_int32_t               inp_flowhash;
+       u_int32_t       inp_flags2;
+};
+#endif /* PRIVATE */
+

 struct xinpgen {
 struct xinpgen {

-       size_t  xig_len;        /* length of this structure */
-       u_int   xig_count;      /* number of PCBs at this time */
-       inp_gen_t xig_gen;      /* generation count at this time */
-       so_gen_t xig_sogen;     /* socket generation count at this time */
+       u_int32_t       xig_len;        /* length of this structure */
+       u_int           xig_count;      /* number of PCBs at this time */
+       inp_gen_t       xig_gen;        /* generation count at this time */
+       so_gen_t        xig_sogen;      /* current socket generation count */

 };
 
 };
 

+#pragma pack()
+

 /*
  * These defines are for use with the inpcb.
  */
 /*
  * These defines are for use with the inpcb.
  */

-#define INP_IPV4       0x1
-#define INP_IPV6       0x2
+#define        INP_IPV4        0x1
+#define        INP_IPV6        0x2

 #define        inp_faddr       inp_dependfaddr.inp46_foreign.ia46_addr4
 #define        inp_laddr       inp_dependladdr.inp46_local.ia46_addr4
 #define        inp_faddr       inp_dependfaddr.inp46_foreign.ia46_addr4
 #define        inp_laddr       inp_dependladdr.inp46_local.ia46_addr4

+#define        in6p_faddr      inp_dependfaddr.inp6_foreign
+#define        in6p_laddr      inp_dependladdr.inp6_local
+
+#ifdef BSD_KERNEL_PRIVATE

 #define        inp_route       inp_dependroute.inp4_route
 #define        inp_ip_tos      inp_depend4.inp4_ip_tos
 #define        inp_options     inp_depend4.inp4_options
 #define        inp_moptions    inp_depend4.inp4_moptions
 #define        inp_route       inp_dependroute.inp4_route
 #define        inp_ip_tos      inp_depend4.inp4_ip_tos
 #define        inp_options     inp_depend4.inp4_options
 #define        inp_moptions    inp_depend4.inp4_moptions

-#define        in6p_faddr      inp_dependfaddr.inp6_foreign
-#define        in6p_laddr      inp_dependladdr.inp6_local

 #define        in6p_route      inp_dependroute.inp6_route
 #define        in6p_ip6_hlim   inp_depend6.inp6_hlim
 #define        in6p_hops       inp_depend6.inp6_hops   /* default hop limit */
 #define        in6p_ip6_nxt    inp_ip_p
 #define        in6p_route      inp_dependroute.inp6_route
 #define        in6p_ip6_hlim   inp_depend6.inp6_hlim
 #define        in6p_hops       inp_depend6.inp6_hops   /* default hop limit */
 #define        in6p_ip6_nxt    inp_ip_p

-#define        in6p_flowinfo   inp_flow

 #define        in6p_vflag      inp_vflag
 #define        in6p_options    inp_depend6.inp6_options
 #define        in6p_outputopts inp_depend6.inp6_outputopts
 #define        in6p_moptions   inp_depend6.inp6_moptions
 #define        in6p_icmp6filt  inp_depend6.inp6_icmp6filt
 #define        in6p_cksum      inp_depend6.inp6_cksum
 #define        in6p_vflag      inp_vflag
 #define        in6p_options    inp_depend6.inp6_options
 #define        in6p_outputopts inp_depend6.inp6_outputopts
 #define        in6p_moptions   inp_depend6.inp6_moptions
 #define        in6p_icmp6filt  inp_depend6.inp6_icmp6filt
 #define        in6p_cksum      inp_depend6.inp6_cksum

-#define        inp6_ifindex    inp_depend6.inp6_ifindex
-#define        in6p_flags      inp_flags  /* for KAME src sync over BSD*'s */
-#define        in6p_socket     inp_socket  /* for KAME src sync over BSD*'s */
-#define        in6p_lport      inp_lport  /* for KAME src sync over BSD*'s */
-#define        in6p_fport      inp_fport  /* for KAME src sync over BSD*'s */
-#define        in6p_ppcb       inp_ppcb  /* for KAME src sync over BSD*'s */
+#define        in6p_ifindex    inp_depend6.inp6_ifindex
+#define        in6p_flags      inp_flags
+#define        in6p_flags2     inp_flags2
+#define        in6p_socket     inp_socket
+#define        in6p_lport      inp_lport
+#define        in6p_fport      inp_fport
+#define        in6p_ppcb       inp_ppcb

 #define        in6p_state      inp_state
 #define        in6p_wantcnt    inp_wantcnt
 #define        in6p_state      inp_state
 #define        in6p_wantcnt    inp_wantcnt

+#define        in6p_last_outifp inp_last_outifp
+#define        in6pcb          inpcb
+#if IPSEC
+#define        in6p_sp         inp_sp
+#endif /* IPSEC */
+#define INP_INC_IFNET_STAT(_inp_, _stat_) { \
+       if ((_inp_)->inp_last_outifp != NULL) { \
+               if ((_inp_)->inp_vflag & INP_IPV6) { \
+                       (_inp_)->inp_last_outifp->if_ipv6_stat->_stat_++;\
+               } else { \
+                       (_inp_)->inp_last_outifp->if_ipv4_stat->_stat_++;\
+               }\
+       }\
+}

 
 

-#ifdef KERNEL_PRIVATE

 struct inpcbport {
        LIST_ENTRY(inpcbport) phd_hash;
        struct inpcbhead phd_pcblist;
        u_short phd_port;
 };
 
 struct inpcbport {
        LIST_ENTRY(inpcbport) phd_hash;
        struct inpcbhead phd_pcblist;
        u_short phd_port;
 };
 

-struct inpcbinfo {             /* XXX documentation, prefixes */
-       struct  inpcbhead *hashbase;
-#ifdef __APPLE__
-       u_long  hashsize; /* in elements */
-#endif
-       u_long  hashmask;
-       struct  inpcbporthead *porthashbase;
-       u_long  porthashmask;
-       struct  inpcbhead *listhead;
-       u_short lastport;
-       u_short lastlow;
-       u_short lasthi;
-       void   *ipi_zone; /* zone to allocate pcbs from */
-       u_int   ipi_count;      /* number of pcbs in this list */
-       u_quad_t ipi_gencnt;    /* current generation count */
-#ifdef __APPLE__
-       u_char   all_owners;
-       struct  socket nat_dummy_socket; /* fake socket for NAT pcb backpointer */
-       struct  inpcb *nat_dummy_pcb;    /* fake pcb for finding NAT mutex */
-       caddr_t  dummy_cb;
-#ifdef _KERN_LOCKS_H_
-       lck_attr_t              *mtx_attr;              /* mutex attributes */
-       lck_grp_t                       *mtx_grp;                       /* mutex group definition */
-       lck_grp_attr_t  *mtx_grp_attr;  /* mutex group attributes */
-       lck_rw_t                        *mtx;                   /* global mutex for the pcblist*/
-#else
-       void    *mtx_attr;      /* mutex attributes */
-       void    *mtx_grp;       /* mutex group definition */
-       void    *mtx_grp_attr;  /* mutex group attributes */
-       void    *mtx;           /* global mutex for the pcblist*/
-#endif 
-#endif
+struct intimercount {
+       u_int32_t intimer_lazy; /* lazy requests for timer scheduling */
+       u_int32_t intimer_fast; /* fast requests, can be coalesced */
+       u_int32_t intimer_nodelay; /* fast requests, never coalesced */

 };
 
 };
 

-#define INP_PCBHASH(faddr, lport, fport, mask) \
-       (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
-#define INP_PCBPORTHASH(lport, mask) \
-       (ntohs((lport)) & (mask))
+typedef void (*inpcb_timer_func_t)(struct inpcbinfo *);

 
 

-#endif /* KERNEL_PRIVATE */
+/*
+ * Global data structure for each high-level protocol (UDP, TCP, ...) in both
+ * IPv4 and IPv6.  Holds inpcb lists and information for managing them.  Each
+ * pcbinfo is protected by a RW lock: ipi_lock.
+ *
+ * All INPCB pcbinfo entries are linked together via ipi_entry.
+ */
+struct inpcbinfo {
+       /*
+        * Glue to all PCB infos, as well as garbage collector and
+        * timer callbacks, protected by inpcb_lock.  Callout request
+        * counts are atomically updated.
+        */
+       TAILQ_ENTRY(inpcbinfo)  ipi_entry;
+       inpcb_timer_func_t      ipi_gc;
+       inpcb_timer_func_t      ipi_timer;
+       struct intimercount     ipi_gc_req;
+       struct intimercount     ipi_timer_req;

 
 

-/* flags in inp_flags: */
-#define        INP_RECVOPTS            0x01    /* receive incoming IP options */
-#define        INP_RECVRETOPTS         0x02    /* receive IP options for reply */
-#define        INP_RECVDSTADDR         0x04    /* receive IP dst address */
-#define        INP_HDRINCL             0x08    /* user supplies entire IP header */
-#define        INP_HIGHPORT            0x10    /* user wants "high" port binding */
-#define        INP_LOWPORT             0x20    /* user wants "low" port binding */
-#define        INP_ANONPORT            0x40    /* port chosen for user */
-#define        INP_RECVIF              0x80    /* receive incoming interface */
-#define        INP_MTUDISC             0x100   /* user can do MTU discovery */
-#ifdef __APPLE__
-#define INP_STRIPHDR           0x200   /* Strip headers in raw_ip, for OT support */
-#endif
-#define  INP_FAITH                     0x400   /* accept FAITH'ed connections */
-#define  INP_INADDR_ANY        0x800   /* local address wasn't specified */
+       /*
+        * Per-protocol lock protecting pcb list, pcb count, etc.
+        */
+       lck_rw_t                *ipi_lock;

 
 

-#define INP_RECVTTL            0x1000
+       /*
+        * List and count of pcbs on the protocol.
+        */
+       struct inpcbhead        *ipi_listhead;
+       uint32_t                ipi_count;

 
 

-#define IN6P_IPV6_V6ONLY       0x008000 /* restrict AF_INET6 socket for v6 */
+       /*
+        * Count of pcbs marked with INP2_TIMEWAIT flag.
+        */
+       uint32_t                ipi_twcount;

 
 

-#define        IN6P_PKTINFO            0x010000 /* receive IP6 dst and I/F */
-#define        IN6P_HOPLIMIT           0x020000 /* receive hoplimit */
-#define        IN6P_HOPOPTS            0x040000 /* receive hop-by-hop options */
-#define        IN6P_DSTOPTS            0x080000 /* receive dst options after rthdr */
-#define        IN6P_RTHDR              0x100000 /* receive routing header */
-#define        IN6P_RTHDRDSTOPTS       0x200000 /* receive dstoptions before rthdr */
-#define IN6P_AUTOFLOWLABEL     0x800000 /* attach flowlabel automatically */
-#define        IN6P_BINDV6ONLY         0x10000000 /* do not grab IPv4 traffic */
+       /*
+        * Generation count -- incremented each time a connection is
+        * allocated or freed.
+        */
+       uint64_t                ipi_gencnt;
+
+       /*
+        * Fields associated with port lookup and allocation.
+        */
+       uint16_t                ipi_lastport;
+       uint16_t                ipi_lastlow;
+       uint16_t                ipi_lasthi;
+
+       /*
+        * Zone from which inpcbs are allocated for this protocol.
+        */
+       struct zone             *ipi_zone;

 
 

-#ifdef KERNEL_PRIVATE
-#define        INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
-                                       INP_RECVIF|\
-                                IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
-                                IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
-                                IN6P_AUTOFLOWLABEL|INP_RECVTTL)
-#define        INP_UNMAPPABLEOPTS      (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
-                                IN6P_AUTOFLOWLABEL)
-
- /* for KAME src sync over BSD*'s */
-#define        IN6P_HIGHPORT           INP_HIGHPORT
-#define        IN6P_LOWPORT            INP_LOWPORT
-#define        IN6P_ANONPORT           INP_ANONPORT
-#define        IN6P_RECVIF             INP_RECVIF
-#define        IN6P_MTUDISC            INP_MTUDISC
-#define        IN6P_FAITH              INP_FAITH
-#define        IN6P_CONTROLOPTS INP_CONTROLOPTS

        /*
        /*

-        * socket AF version is {newer than,or include}
-        * actual datagram AF version
+        * Per-protocol hash of pcbs, hashed by local and foreign
+        * addresses and port numbers.

         */
         */

+       struct inpcbhead        *ipi_hashbase;
+       u_long                  ipi_hashmask;
+
+       /*
+        * Per-protocol hash of pcbs, hashed by only local port number.
+        */
+       struct inpcbporthead    *ipi_porthashbase;
+       u_long                  ipi_porthashmask;
+
+       /*
+        * Misc.
+        */
+       lck_attr_t              *ipi_lock_attr;
+       lck_grp_t               *ipi_lock_grp;
+       lck_grp_attr_t          *ipi_lock_grp_attr;
+
+#define        INPCBINFO_UPDATE_MSS    0x1
+       u_int32_t               ipi_flags;
+};

 
 

+#define        INP_PCBHASH(faddr, lport, fport, mask) \
+       (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
+#define        INP_PCBPORTHASH(lport, mask) \
+       (ntohs((lport)) & (mask))
+
+#define        INP_IS_FLOW_CONTROLLED(_inp_) \
+       ((_inp_)->inp_flags & INP_FLOW_CONTROLLED)
+#define        INP_IS_FLOW_SUSPENDED(_inp_) \
+       (((_inp_)->inp_flags & INP_FLOW_SUSPENDED) ||   \
+       ((_inp_)->inp_socket->so_flags & SOF_SUSPENDED))
+#define        INP_WAIT_FOR_IF_FEEDBACK(_inp_) \
+       (((_inp_)->inp_flags & (INP_FLOW_CONTROLLED | INP_FLOW_SUSPENDED)) != 0)
+
+#define INP_NO_CELLULAR(_inp) \
+       ((_inp)->inp_flags & INP_NO_IFT_CELLULAR)
+#define INP_NO_EXPENSIVE(_inp) \
+       ((_inp)->inp_flags2 & INP2_NO_IFF_EXPENSIVE)
+#define        INP_AWDL_UNRESTRICTED(_inp) \
+       ((_inp)->inp_flags2 & INP2_AWDL_UNRESTRICTED)
+#define        INP_INTCOPROC_ALLOWED(_inp) \
+       ((_inp)->inp_flags2 & INP2_INTCOPROC_ALLOWED)
+
+#endif /* BSD_KERNEL_PRIVATE */
+
+/*
+ * Flags for inp_flags.
+ *
+ * Some of these are publicly defined for legacy reasons, as they are
+ * (unfortunately) used by certain applications to determine, at compile
+ * time, whether or not the OS supports certain features.
+ */
+#ifdef BSD_KERNEL_PRIVATE
+#define        INP_RECVOPTS            0x00000001 /* receive incoming IP options */
+#define        INP_RECVRETOPTS         0x00000002 /* receive IP options for reply */
+#define        INP_RECVDSTADDR         0x00000004 /* receive IP dst address */
+#define        INP_HDRINCL             0x00000008 /* user supplies entire IP header */
+#define        INP_HIGHPORT            0x00000010 /* user wants "high" port binding */
+#define        INP_LOWPORT             0x00000020 /* user wants "low" port binding */
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        INP_ANONPORT            0x00000040 /* port chosen for user */
+
+#ifdef BSD_KERNEL_PRIVATE
+#define        INP_RECVIF              0x00000080 /* receive incoming interface */
+#define        INP_MTUDISC             0x00000100 /* unused */
+#define        INP_STRIPHDR            0x00000200 /* strip hdrs in raw_ip (for OT) */
+#define        INP_RECV_ANYIF          0x00000400 /* don't restrict inbound iface */
+#define        INP_INADDR_ANY          0x00000800 /* local address wasn't specified */
+#define        INP_IN6ADDR_ANY         INP_INADDR_ANY
+#define        INP_RECVTTL             0x00001000 /* receive incoming IP TTL */
+#define        INP_UDP_NOCKSUM         0x00002000 /* turn off outbound UDP checksum */
+#define        INP_BOUND_IF            0x00004000 /* bind socket to an interface */
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        IN6P_IPV6_V6ONLY        0x00008000 /* restrict AF_INET6 socket for v6 */
+
+#ifdef BSD_KERNEL_PRIVATE
+#define        IN6P_PKTINFO            0x00010000 /* receive IP6 dst and I/F */
+#define        IN6P_HOPLIMIT           0x00020000 /* receive hoplimit */
+#define        IN6P_HOPOPTS            0x00040000 /* receive hop-by-hop options */
+#define        IN6P_DSTOPTS            0x00080000 /* receive dst options after rthdr */
+#define        IN6P_RTHDR              0x00100000 /* receive routing header */
+#define        IN6P_RTHDRDSTOPTS       0x00200000 /* receive dstoptions before rthdr */
+#define        IN6P_TCLASS             0x00400000 /* receive traffic class value */
+#define        IN6P_AUTOFLOWLABEL      0x00800000 /* attach flowlabel automatically */
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define        IN6P_BINDV6ONLY         0x01000000 /* do not grab IPv4 traffic */
+
+#ifdef BSD_KERNEL_PRIVATE
+#define        IN6P_RFC2292            0x02000000 /* used RFC2292 API on the socket */
+#define        IN6P_MTU                0x04000000 /* receive path MTU */
+#define        INP_PKTINFO             0x08000000 /* rcv and snd PKTINFO for IPv4 */
+#define        INP_FLOW_SUSPENDED      0x10000000 /* flow suspended */
+#define        INP_NO_IFT_CELLULAR     0x20000000 /* do not use cellular interface */
+#define        INP_FLOW_CONTROLLED     0x40000000 /* flow controlled */
+#define        INP_FC_FEEDBACK         0x80000000 /* got interface flow adv feedback */
+
+#define        INP_CONTROLOPTS \
+       (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|INP_RECVIF|INP_RECVTTL| \
+       INP_PKTINFO|IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|IN6P_DSTOPTS| \
+       IN6P_RTHDR|IN6P_RTHDRDSTOPTS|IN6P_TCLASS|IN6P_RFC2292|IN6P_MTU)
+
+#define        INP_UNMAPPABLEOPTS \
+       (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR| IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
+
+/*
+ * Flags for inp_flags2.
+ *
+ * Overflowed INP flags; use INP2 prefix to avoid misuse.
+ */
+#define        INP2_TIMEWAIT           0x00000001 /* in TIMEWAIT */
+#define        INP2_IN_FCTREE          0x00000002 /* in inp_fc_tree */
+#define        INP2_WANT_APP_POLICY    0x00000004 /* necp app policy check is desired */
+#define        INP2_NO_IFF_EXPENSIVE   0x00000008 /* do not use expensive interface */
+#define        INP2_INHASHLIST         0x00000010 /* pcb is in inp_hash list */
+#define        INP2_AWDL_UNRESTRICTED  0x00000020 /* AWDL restricted mode allowed */
+#define        INP2_KEEPALIVE_OFFLOAD  0x00000040 /* Enable UDP or TCP keepalive offload */
+#define INP2_INTCOPROC_ALLOWED 0x00000080 /* Allow communication via internal co-processor interfaces */
+
+/*
+ * Flags passed to in_pcblookup*() functions.
+ */

 #define        INPLOOKUP_WILDCARD      1
 #define        INPLOOKUP_WILDCARD      1

-#ifdef __APPLE__
-#define INPCB_ALL_OWNERS       0xff
-#define INPCB_NO_OWNER         0x0
-#define INPCB_OWNED_BY_X       0x80
-#define INPCB_MAX_IDS          7
-#endif /* __APPLE__ */

 
 #define        sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
 
 #define        sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)

-#define        sotoin6pcb(so)  sotoinpcb(so) /* for KAME src sync over BSD*'s */
-
-#define        INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
-
-#define        INP_CHECK_SOCKAF(so, af)        (INP_SOCKAF(so) == af)
-
-#ifdef KERNEL
-extern int     ipport_lowfirstauto;
-extern int     ipport_lowlastauto;
-extern int     ipport_firstauto;
-extern int     ipport_lastauto;
-extern int     ipport_hifirstauto;
-extern int     ipport_hilastauto;
-
-#define INPCB_STATE_INUSE      0x1     /* freshly allocated PCB, it's in use */
-#define INPCB_STATE_CACHED     0x2     /* this pcb is sitting in a a cache */
-#define INPCB_STATE_DEAD       0x3     /* should treat as gone, will be garbage collected and freed */
-
-#define WNT_STOPUSING  0xffff  /* marked as ready to be garbaged collected, should be treated as not found */
-#define WNT_ACQUIRE    0x1             /* that pcb is being acquired, do not recycle this time */
-#define WNT_RELEASE    0x2             /* release acquired mode, can be garbage collected when wantcnt is null */
-
-
-void   in_pcbpurgeif0(struct inpcb *, struct ifnet *);
-void   in_losing(struct inpcb *);
-void   in_rtchange(struct inpcb *, int);
-int    in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *);
-int    in_pcbbind(struct inpcb *, struct sockaddr *, struct proc *);
-int    in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *);
-void   in_pcbdetach(struct inpcb *);
-void   in_pcbdispose (struct inpcb *);
-void   in_pcbdisconnect(struct inpcb *);
-int    in_pcbinshash(struct inpcb *, int);
-int    in_pcbladdr(struct inpcb *, struct sockaddr *, struct sockaddr_in **);
-struct inpcb *
-       in_pcblookup_local(struct inpcbinfo *, struct in_addr, u_int, int);
-struct inpcb *
-       in_pcblookup_hash(struct inpcbinfo *,
-                              struct in_addr, u_int, struct in_addr, u_int,
-                              int, struct ifnet *);
-void   in_pcbnotifyall(struct inpcbinfo *, struct in_addr,
-           int, void (*)(struct inpcb *, int));
-void   in_pcbrehash(struct inpcb *);
-int    in_setpeeraddr(struct socket *so, struct sockaddr **nam);
-int    in_setsockaddr(struct socket *so, struct sockaddr **nam);
-int    in_pcb_checkstate(struct inpcb *pcb, int mode, int locked);
-
-int
-in_pcb_grab_port (struct inpcbinfo *pcbinfo,
-                      u_short          options,
-                      struct in_addr   laddr, 
-                      u_short          *lport,  
-                      struct in_addr   faddr,
-                      u_short          fport,
-                      u_int            cookie, 
-                      u_char           owner_id);
-
-int    
-in_pcb_letgo_port(struct inpcbinfo *pcbinfo, 
-                      struct in_addr laddr, 
-                      u_short lport,
-                      struct in_addr faddr,
-                      u_short fport, u_char owner_id);
-
-u_char
-in_pcb_get_owner(struct inpcbinfo *pcbinfo, 
-                     struct in_addr laddr, 
-                     u_short lport, 
-                     struct in_addr faddr,
-                     u_short fport,
-                     u_int *cookie);
-
-void in_pcb_nat_init(struct inpcbinfo *pcbinfo, int afamily, int pfamily,
-                    int protocol);
-
-int
-in_pcb_new_share_client(struct inpcbinfo *pcbinfo, u_char *owner_id);
-
-int
-in_pcb_rem_share_client(struct inpcbinfo *pcbinfo, u_char owner_id);
-
-void   in_pcbremlists(struct inpcb *inp);
-int    in_pcb_ckeckstate(struct inpcb *, int, int);
-void   inpcb_to_compat(struct inpcb *inp, struct inpcb_compat *inp_compat);
-
-#endif /* KERNEL */
+#define        sotoin6pcb(so)  sotoinpcb(so)
+
+struct sysctl_req;
+
+extern int ipport_lowfirstauto;
+extern int ipport_lowlastauto;
+extern int ipport_firstauto;
+extern int ipport_lastauto;
+extern int ipport_hifirstauto;
+extern int ipport_hilastauto;
+
+/* freshly allocated PCB, it's in use */
+#define        INPCB_STATE_INUSE       0x1
+/* this pcb is sitting in a a cache */
+#define        INPCB_STATE_CACHED      0x2
+/* should treat as gone, will be garbage collected and freed */
+#define        INPCB_STATE_DEAD        0x3
+
+/* marked as ready to be garbaged collected, should be treated as not found */
+#define        WNT_STOPUSING           0xffff
+/* that pcb is being acquired, do not recycle this time */
+#define        WNT_ACQUIRE             0x1
+/* release acquired mode, can be garbage collected when wantcnt is null */
+#define        WNT_RELEASE             0x2
+
+extern void in_pcbinit(void);
+extern void in_pcbinfo_attach(struct inpcbinfo *);
+extern int in_pcbinfo_detach(struct inpcbinfo *);
+
+/* type of timer to be scheduled by inpcb_gc_sched and inpcb_timer_sched */
+enum {
+       INPCB_TIMER_LAZY = 0x1,
+       INPCB_TIMER_FAST,
+       INPCB_TIMER_NODELAY
+};
+extern void inpcb_gc_sched(struct inpcbinfo *, u_int32_t type);
+extern void inpcb_timer_sched(struct inpcbinfo *, u_int32_t type);
+
+extern void in_losing(struct inpcb *);
+extern void in_rtchange(struct inpcb *, int);
+extern int in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *);
+extern int in_pcbbind(struct inpcb *, struct sockaddr *, struct proc *);
+extern int in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *,
+    unsigned int, struct ifnet **);
+extern void in_pcbdetach(struct inpcb *);
+extern void in_pcbdispose(struct inpcb *);
+extern void in_pcbdisconnect(struct inpcb *);
+extern int in_pcbinshash(struct inpcb *, int);
+extern int in_pcbladdr(struct inpcb *, struct sockaddr *, struct in_addr *,
+    unsigned int, struct ifnet **, int);
+extern struct inpcb *in_pcblookup_local(struct inpcbinfo *, struct in_addr,
+    u_int, int);
+extern struct inpcb *in_pcblookup_local_and_cleanup(struct inpcbinfo *,
+    struct in_addr, u_int, int);
+extern struct inpcb *in_pcblookup_hash(struct inpcbinfo *, struct in_addr,
+    u_int, struct in_addr, u_int, int, struct ifnet *);
+extern int in_pcblookup_hash_exists(struct inpcbinfo *, struct in_addr,
+    u_int, struct in_addr, u_int, int, uid_t *, gid_t *, struct ifnet *);
+extern void in_pcbnotifyall(struct inpcbinfo *, struct in_addr, int,
+    void (*)(struct inpcb *, int));
+extern void in_pcbrehash(struct inpcb *);
+extern int in_getpeeraddr(struct socket *, struct sockaddr **);
+extern int in_getpeeraddr_s(struct socket *, struct sockaddr_storage *);
+extern int in_getsockaddr(struct socket *, struct sockaddr **);
+extern int in_getsockaddr_s(struct socket *, struct sockaddr_storage *);
+extern int in_pcb_checkstate(struct inpcb *, int, int);
+extern void in_pcbremlists(struct inpcb *);
+extern void inpcb_to_compat(struct inpcb *, struct inpcb_compat *);
+extern void inpcb_to_xinpcb64(struct inpcb *, struct xinpcb64 *);
+
+extern int get_pcblist_n(short, struct sysctl_req *, struct inpcbinfo *);
+#define        INPCB_GET_PORTS_USED_WILDCARDOK 0x01
+#define        INPCB_GET_PORTS_USED_NOWAKEUPOK 0x02
+#define        INPCB_GET_PORTS_USED_RECVANYIFONLY 0x04
+#define        INPCB_GET_PORTS_USED_EXTBGIDLEONLY 0x08
+#define        INPCB_GET_PORTS_USED_ACTIVEONLY 0x10
+
+extern void inpcb_get_ports_used(u_int32_t, int, u_int32_t, bitstr_t *,
+    struct inpcbinfo *);
+#define        INPCB_OPPORTUNISTIC_THROTTLEON  0x0001
+#define        INPCB_OPPORTUNISTIC_SETCMD      0x0002
+extern uint32_t inpcb_count_opportunistic(unsigned int, struct inpcbinfo *,
+    u_int32_t);
+extern uint32_t inpcb_find_anypcb_byaddr(struct ifaddr *, struct inpcbinfo *);
+extern void inp_route_copyout(struct inpcb *, struct route *);
+extern void inp_route_copyin(struct inpcb *, struct route *);
+extern int inp_bindif(struct inpcb *, unsigned int, struct ifnet **);
+extern void inp_set_nocellular(struct inpcb *);
+extern void inp_clear_nocellular(struct inpcb *);
+extern void inp_set_noexpensive(struct inpcb *);
+extern void inp_set_awdl_unrestricted(struct inpcb *);
+extern boolean_t inp_get_awdl_unrestricted(struct inpcb *);
+extern void inp_clear_awdl_unrestricted(struct inpcb *);
+extern void inp_set_intcoproc_allowed(struct inpcb *);
+extern boolean_t inp_get_intcoproc_allowed(struct inpcb *);
+extern void inp_clear_intcoproc_allowed(struct inpcb *);
+#if NECP
+extern void inp_update_necp_policy(struct inpcb *, struct sockaddr *, struct sockaddr *, u_int);
+extern void inp_set_want_app_policy(struct inpcb *);
+extern void inp_clear_want_app_policy(struct inpcb *);
+#endif /* NECP */
+extern u_int32_t inp_calc_flowhash(struct inpcb *);
+extern void inp_reset_fc_state(struct inpcb *);
+extern int inp_set_fc_state(struct inpcb *, int advcode);
+extern void inp_fc_unthrottle_tcp(struct inpcb *);
+extern void inp_flowadv(uint32_t);
+extern int inp_flush(struct inpcb *, int);
+extern int inp_findinpcb_procinfo(struct inpcbinfo *, uint32_t, struct so_procinfo *);
+extern void inp_get_soprocinfo(struct inpcb *, struct so_procinfo *);
+extern int inp_update_policy(struct inpcb *);
+extern boolean_t inp_restricted_recv(struct inpcb *, struct ifnet *);
+extern boolean_t inp_restricted_send(struct inpcb *, struct ifnet *);
+extern void inp_incr_sndbytes_total(struct socket *, int);
+extern void inp_decr_sndbytes_total(struct socket *, int);
+extern void inp_count_sndbytes(struct inpcb *, u_int32_t);
+extern void inp_incr_sndbytes_unsent(struct socket *, int32_t);
+extern void inp_decr_sndbytes_unsent(struct socket *, int32_t);
+extern int32_t inp_get_sndbytes_allunsent(struct socket *, u_int32_t);
+extern void inp_decr_sndbytes_allunsent(struct socket *, u_int32_t);
+#endif /* BSD_KERNEL_PRIVATE */
+#ifdef KERNEL_PRIVATE
+/* exported for PPP */
+extern void inp_clear_INP_INADDR_ANY(struct socket *);

 #endif /* KERNEL_PRIVATE */
 #endif /* KERNEL_PRIVATE */

-

 #endif /* !_NETINET_IN_PCB_H_ */
 #endif /* !_NETINET_IN_PCB_H_ */