xnu-2782.20.48.tar.gz

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

diff --git a/bsd/sys/protosw.h b/bsd/sys/protosw.h
index 75b6d6b28b4a7a10ac83e120b94607fff26e3035..b7d319d1811a0db7b25c4a978420e7e3a37c8410 100644 (file)
--- a/bsd/sys/protosw.h
+++ b/bsd/sys/protosw.h
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @APPLE_OSREFERENCE_LICENSE_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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 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,
  * 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,


@@ -22,7 +22,7 @@
  * 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.
  * 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.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */


@@ -64,20 +64,19 @@
  */
 
 #ifndef _SYS_PROTOSW_H_
  */
 
 #ifndef _SYS_PROTOSW_H_

-#define _SYS_PROTOSW_H_
+#define        _SYS_PROTOSW_H_

 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 
 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 

+/* XXX: this will go away */

 #define        PR_SLOWHZ       2               /* 2 slow timeouts per second */
 #define        PR_SLOWHZ       2               /* 2 slow timeouts per second */

-#ifndef __APPLE__
-/*
- * See rdar://7617868: pr_fasttimo was removed use your own timer or pr_slowtimo instead
- */
-#define        PR_FASTHZ       5               /* 5 fast timeouts per second */
-#endif

 
 

-#ifdef PRIVATE
+#ifdef KERNEL_PRIVATE
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/queue.h>
+#include <kern/locks.h>

 
 /* Forward declare these structures referenced from prototypes below. */
 struct mbuf;
 
 /* Forward declare these structures referenced from prototypes below. */
 struct mbuf;


@@ -86,8 +85,80 @@ struct sockaddr;
 struct socket;
 struct sockopt;
 struct socket_filter;
 struct socket;
 struct sockopt;
 struct socket_filter;

+#ifdef XNU_KERNEL_PRIVATE
+struct domain_old;
+#endif /* XNU_KERNEL_PRIVATE */
+
+#pragma pack(4)

 
 

-/*#ifdef _KERNEL*/
+#ifdef XNU_KERNEL_PRIVATE
+/*
+ * Legacy protocol switch table.
+ *
+ * NOTE: Do not modify this structure, as there are modules outside of xnu
+ * which rely on the size and layout for binary compatibility.  This structure
+ * is simply used by the exported net_{add,del}_proto_old, pffindproto_old
+ * routines, and by the domain_old structure.  Internally, protocol switch
+ * tables are stored in the private variant of protosw defined down below.
+ */
+struct protosw_old {
+#else
+struct protosw {
+#endif /* !XNU_KERNEL_PRIVATE */
+       short   pr_type;                /* socket type used for */
+       struct  domain *pr_domain;      /* domain protocol a member of */
+       short   pr_protocol;            /* protocol number */
+       unsigned int pr_flags;          /* see below */
+       /*
+        * protocol-protocol hooks
+        */
+       void    (*pr_input)             /* input to protocol (from below) */
+                   (struct mbuf *, int len);
+       int     (*pr_output)            /* output to protocol (from above) */
+                   (struct mbuf *m, struct socket *so);
+       void    (*pr_ctlinput)          /* control input (from below) */
+                   (int, struct sockaddr *, void *);
+       int     (*pr_ctloutput)         /* control output (from above) */
+                   (struct socket *, struct sockopt *);
+       /*
+        * user-protocol hook
+        */
+       void    *pr_ousrreq;
+       /*
+        * utility hooks
+        */
+       void    (*pr_init)(void);       /* initialization hook */
+       void    (*pr_unused)(void);     /* placeholder - fasttimo is removed */
+       void    (*pr_unused2)(void);    /* placeholder - slowtimo is removed */
+       void    (*pr_drain)(void);      /* flush any excess space possible */
+       int     (*pr_sysctl)            /* sysctl for protocol */
+                   (int *, u_int, void *, size_t *, void *, size_t);
+#ifdef XNU_KERNEL_PRIVATE
+       struct  pr_usrreqs_old *pr_usrreqs; /* supersedes pr_usrreq() */
+#else
+       struct  pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
+#endif /* !XNU_KERNEL_PRIVATE */
+       int     (*pr_lock)              /* lock function for protocol */
+                   (struct socket *so, int locktype, void *debug);
+       int     (*pr_unlock)            /* unlock for protocol */
+                   (struct socket *so, int locktype, void *debug);
+       lck_mtx_t *(*pr_getlock)        /* retrieve protocol lock */
+                   (struct socket *so, int locktype);
+       /*
+        * Implant hooks
+        */
+       TAILQ_HEAD(, socket_filter) pr_filter_head;
+#ifdef XNU_KERNEL_PRIVATE
+       struct protosw_old *pr_next;    /* chain for domain */
+#else
+       struct protosw *pr_next;        /* chain for domain */
+#endif /* !XNU_KERNEL_PRIVATE */
+       u_int32_t       reserved[1];    /* padding for future use */
+};
+
+#pragma pack()
+
+#ifdef XNU_KERNEL_PRIVATE

 /*
  * Protocol switch table.
  *
 /*
  * Protocol switch table.
  *


@@ -95,10 +166,8 @@ struct socket_filter;
  * which is used for protocol-protocol and system-protocol communication.
  *
  * A protocol is called through the pr_init entry before any other.
  * which is used for protocol-protocol and system-protocol communication.
  *
  * A protocol is called through the pr_init entry before any other.

- * Thereafter it is called every 200ms through the pr_fasttimo entry and
- * every 500ms through the pr_slowtimo for timer based actions.
- * The system will call the pr_drain entry if it is low on space and
- * this should throw away any non-critical data.
+ * The system will call the pr_drain entry if it is low on space and this
+ * should throw away any non-critical data.

  *
  * Protocols pass data between themselves as chains of mbufs using
  * the pr_input and pr_output hooks.  Pr_input passes data up (towards
  *
  * Protocols pass data between themselves as chains of mbufs using
  * the pr_input and pr_output hooks.  Pr_input passes data up (towards


@@ -109,68 +178,59 @@ struct socket_filter;
  *
  * The userreq routine interfaces protocols to the system and is
  * described below.
  *
  * The userreq routine interfaces protocols to the system and is
  * described below.

+ *
+ * After a protocol is attached, its pr_domain will be set to the domain
+ * which the protocol belongs to, and its pr_protosw will be set to the
+ * address of the protosw instance.  The latter is useful for finding
+ * the real/original protosw instance, in the event so_proto is altered
+ * to point to an alternative/derivative protosw.  E.g. the list of
+ * socket filters is only applicable on the original protosw instance.
+ *
+ * Internal, private and extendable representation of protosw.

  */
  */

-
-#include <sys/socket.h> 
-#include <sys/socketvar.h>
-#include <sys/queue.h>
-#ifdef KERNEL
-#include <kern/locks.h>
-#endif /* KERNEL */
-
-#pragma pack(4)
-

 struct protosw {
 struct protosw {

-       short   pr_type;                /* socket type used for */
+       TAILQ_ENTRY(protosw) pr_entry; /* chain for domain */

        struct  domain *pr_domain;      /* domain protocol a member of */
        struct  domain *pr_domain;      /* domain protocol a member of */

-       short   pr_protocol;            /* protocol number */
-       unsigned int pr_flags;          /* see below */
-/* protocol-protocol hooks */
-       void    (*pr_input)(struct mbuf *, int len);
-                                       /* input to protocol (from below) */
-       int     (*pr_output)(struct mbuf *m, struct socket *so);
-                                       /* output to protocol (from above) */
-       void    (*pr_ctlinput)(int, struct sockaddr *, void *);
-                                       /* control input (from below) */
-       int     (*pr_ctloutput)(struct socket *, struct sockopt *);
-                                       /* control output (from above) */
-/* user-protocol hook */
-       void    *pr_ousrreq;
-/* utility hooks */
-       void    (*pr_init)(void);       /* initialization hook */
-#if __APPLE__
-       void    (*pr_unused)(void);     /* placeholder - fasttimo is removed */
-#else
-       void    (*pr_fasttimo)(void);
-                                       /* fast timeout (200ms) */
-#endif
-       void    (*pr_slowtimo)(void);
-                                       /* slow timeout (500ms) */
-       void    (*pr_drain)(void);
-                                       /* flush any excess space possible */
-#if __APPLE__
-       int     (*pr_sysctl)(int *, u_int, void *, size_t *, void *, size_t);
-                                       /* sysctl for protocol */
-#endif
-       struct  pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
-#if __APPLE__
-       int     (*pr_lock)      (struct socket *so, int locktype, void *debug); /* lock function for protocol */
-       int     (*pr_unlock)    (struct socket *so, int locktype, void *debug); /* unlock for protocol */
-#ifdef _KERN_LOCKS_H_
-       lck_mtx_t *     (*pr_getlock)   (struct socket *so, int locktype);
-#else
-       void *  (*pr_getlock)   (struct socket *so, int locktype);
-#endif
-#endif
-#if __APPLE__
-/* Implant hooks */
+       struct protosw *pr_protosw;     /* pointer to self */
+       u_int16_t pr_type;              /* socket type used for */
+       u_int16_t pr_protocol;          /* protocol number */
+       u_int32_t pr_flags;             /* see below */
+       /*
+        * protocol-protocol hooks
+        */
+       void    (*pr_input)             /* input to protocol (from below) */
+                   (struct mbuf *, int len);
+       int     (*pr_output)            /* output to protocol (from above) */
+                   (struct mbuf *m, struct socket *so);
+       void    (*pr_ctlinput)          /* control input (from below) */
+                   (int, struct sockaddr *, void *);
+       int     (*pr_ctloutput)         /* control output (from above) */
+                   (struct socket *, struct sockopt *);
+       /*
+        * user-protocol hook
+        */
+       struct  pr_usrreqs *pr_usrreqs; /* user request; see list below */
+       /*
+        * utility hooks
+        */
+       void    (*pr_init)              /* initialization hook */
+                   (struct protosw *, struct domain *);
+       void    (*pr_drain)(void);      /* flush any excess space possible */
+       int     (*pr_sysctl)            /* sysctl for protocol */
+                   (int *, u_int, void *, size_t *, void *, size_t);
+       int     (*pr_lock)              /* lock function for protocol */
+                   (struct socket *so, int locktype, void *debug);
+       int     (*pr_unlock)            /* unlock for protocol */
+                   (struct socket *so, int locktype, void *debug);
+       lck_mtx_t *(*pr_getlock)        /* retrieve protocol lock */
+                   (struct socket *so, int locktype);
+       /*
+        * misc
+        */

        TAILQ_HEAD(, socket_filter) pr_filter_head;
        TAILQ_HEAD(, socket_filter) pr_filter_head;

-       struct protosw *pr_next;        /* Chain for domain */
-       u_int32_t       reserved[1];            /* Padding for future use */
-#endif
+       struct protosw_old *pr_old;

 };
 };

-
-#pragma pack()
+#endif /* XNU_KERNEL_PRIVATE */

 
 /*
  * Values for pr_flags.
 
 /*
  * Values for pr_flags.


@@ -181,30 +241,106 @@ struct protosw {
  *     is only relevant if PR_CONNREQUIRED is set (otherwise sendto is allowed
  *     anyhow).
  */
  *     is only relevant if PR_CONNREQUIRED is set (otherwise sendto is allowed
  *     anyhow).
  */

-#define        PR_ATOMIC                       0x01            /* exchange atomic messages only */
-#define        PR_ADDR                 0x02            /* addresses given with messages */
-#define        PR_CONNREQUIRED 0x04            /* connection required by protocol */
-#define        PR_WANTRCVD             0x08            /* want PRU_RCVD calls */
-#define        PR_RIGHTS                       0x10            /* passes capabilities */
-#define        PR_IMPLOPCL             0x20            /* implied open/close */
-#define        PR_LASTHDR              0x40            /* enforce ipsec policy; last header */
-#define        PR_PROTOLOCK            0x80            /* protocol takes care of it's own locking */
-#define        PR_PCBLOCK              0x100   /* protocol supports per pcb finer grain locking */
-#define        PR_DISPOSE              0x200   /* protocol requires late lists disposal */
-#define        PR_AGGDRAIN             0x400   /* protocol requires aggressive draining */
+#define        PR_ATOMIC       0x01    /* exchange atomic messages only */
+#define        PR_ADDR         0x02    /* addresses given with messages */
+#define        PR_CONNREQUIRED 0x04    /* connection required by protocol */
+#define        PR_WANTRCVD     0x08    /* want PRU_RCVD calls */
+#define        PR_RIGHTS       0x10    /* passes capabilities */
+#define        PR_IMPLOPCL     0x20    /* implied open/close */
+#define        PR_LASTHDR      0x40    /* enforce ipsec policy; last header */
+#define        PR_PROTOLOCK    0x80    /* protocol takes care of it's own locking */
+#define        PR_PCBLOCK      0x100   /* protocol supports per pcb locking */
+#define        PR_DISPOSE      0x200   /* protocol requires late lists disposal */
+#ifdef BSD_KERNEL_PRIVATE
+#define        PR_INITIALIZED  0x400   /* protocol has been initialized */
+#define        PR_ATTACHED     0x800   /* protocol is attached to a domain */
+#define        PR_MULTICONN    0x1000  /* supports multiple connect calls */
+#define        PR_EVCONNINFO   0x2000  /* protocol generates conninfo event */
+#define        PR_OLD          0x10000000 /* added via net_add_proto */
+
+/* pseudo-public domain flags */
+#define        PRF_USERFLAGS                                                   \
+       (PR_ATOMIC|PR_ADDR|PR_CONNREQUIRED|PR_WANTRCVD|PR_RIGHTS|       \
+       PR_IMPLOPCL|PR_LASTHDR|PR_PROTOLOCK|PR_PCBLOCK|PR_DISPOSE)
+#endif /* BSD_KERNEL_PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE
+/*
+ * The arguments to the ctlinput routine are
+ *     (*protosw[].pr_ctlinput)(cmd, sa, arg);
+ * where cmd is one of the commands below, sa is a pointer to a sockaddr,
+ * and arg is a `void *' argument used within a protocol family.
+ */
+#define        PRC_IFDOWN              0       /* interface transition */
+#define        PRC_ROUTEDEAD           1       /* select new route if possible ??? */
+#define        PRC_IFUP                2       /* interface has come back up */
+#define        PRC_QUENCH2             3       /* DEC congestion bit says slow down */
+#define        PRC_QUENCH              4       /* some one said to slow down */
+#define        PRC_MSGSIZE             5       /* message size forced drop */
+#define        PRC_HOSTDEAD            6       /* host appears to be down */
+#define        PRC_HOSTUNREACH         7       /* deprecated (use PRC_UNREACH_HOST) */
+#define        PRC_UNREACH_NET         8       /* no route to network */
+#define        PRC_UNREACH_HOST        9       /* no route to host */
+#define        PRC_UNREACH_PROTOCOL    10      /* dst says bad protocol */
+#define        PRC_UNREACH_PORT        11      /* bad port # */
+/* was PRC_UNREACH_NEEDFRAG    12         (use PRC_MSGSIZE) */
+#define        PRC_UNREACH_SRCFAIL     13      /* source route failed */
+#define        PRC_REDIRECT_NET        14      /* net routing redirect */
+#define        PRC_REDIRECT_HOST       15      /* host routing redirect */
+#define        PRC_REDIRECT_TOSNET     16      /* redirect for type of service & net */
+#define        PRC_REDIRECT_TOSHOST    17      /* redirect for tos & host */
+#define        PRC_TIMXCEED_INTRANS    18      /* packet lifetime expired in transit */
+#define        PRC_TIMXCEED_REASS      19      /* lifetime expired on reass q */
+#define        PRC_PARAMPROB           20      /* header incorrect */
+#define        PRC_UNREACH_ADMIN_PROHIB 21     /* packet administrativly prohibited */
+
+#define        PRC_NCMDS               22
+
+#define        PRC_IS_REDIRECT(cmd)    \
+       ((cmd) >= PRC_REDIRECT_NET && (cmd) <= PRC_REDIRECT_TOSHOST)
+
+#ifdef PRCREQUESTS
+char   *prcrequests[] = {
+       "IFDOWN", "ROUTEDEAD", "IFUP", "DEC-BIT-QUENCH2",
+       "QUENCH", "MSGSIZE", "HOSTDEAD", "#7",
+       "NET-UNREACH", "HOST-UNREACH", "PROTO-UNREACH", "PORT-UNREACH",
+       "#12", "SRCFAIL-UNREACH", "NET-REDIRECT", "HOST-REDIRECT",
+       "TOSNET-REDIRECT", "TOSHOST-REDIRECT", "TX-INTRANS", "TX-REASS",
+       "PARAMPROB", "ADMIN-UNREACH"
+};
+#endif /* PRCREQUESTS */

 
 /*
 
 /*

- * The arguments to usrreq are:
- *     (*protosw[].pr_usrreq)(up, req, m, nam, opt);
- * where up is a (struct socket *), req is one of these requests,
- * m is a optional mbuf chain containing a message,
- * nam is an optional mbuf chain containing an address,
- * and opt is a pointer to a socketopt structure or nil.
- * The protocol is responsible for disposal of the mbuf chain m,
- * the caller is responsible for any space held by nam and opt.
+ * The arguments to ctloutput are:
+ *     (*protosw[].pr_ctloutput)(req, so, level, optname, optval, p);
+ * req is one of the actions listed below, so is a (struct socket *),
+ * level is an indication of which protocol layer the option is intended.
+ * optname is a protocol dependent socket option request,
+ * optval is a pointer to a mbuf-chain pointer, for value-return results.
+ * The protocol is responsible for disposal of the mbuf chain *optval
+ * if supplied,
+ * the caller is responsible for any space held by *optval, when returned.

  * A non-zero return from usrreq gives an
  * UNIX error number which should be passed to higher level software.
  */
  * A non-zero return from usrreq gives an
  * UNIX error number which should be passed to higher level software.
  */

+#define        PRCO_GETOPT     0
+#define        PRCO_SETOPT     1
+
+#define        PRCO_NCMDS      2
+
+#ifdef PRCOREQUESTS
+char   *prcorequests[] = {
+       "GETOPT", "SETOPT",
+};
+#endif /* PRCOREQUESTS */
+
+/*
+ * In earlier BSD network stacks, a single pr_usrreq() function pointer was
+ * invoked with an operation number indicating what operation was desired.
+ * We now provide individual function pointers which protocols can implement,
+ * which offers a number of benefits (such as type checking for arguments).
+ * These older constants are still present in order to support TCP debugging.
+ */

 #define        PRU_ATTACH              0       /* attach protocol to up */
 #define        PRU_DETACH              1       /* detach protocol from up */
 #define        PRU_BIND                2       /* bind socket to address */
 #define        PRU_ATTACH              0       /* attach protocol to up */
 #define        PRU_DETACH              1       /* detach protocol from up */
 #define        PRU_BIND                2       /* bind socket to address */


@@ -229,8 +365,8 @@ struct protosw {
 #define        PRU_PROTORCV            20      /* receive from below */
 #define        PRU_PROTOSEND           21      /* send to below */
 /* end for protocol's internal use */
 #define        PRU_PROTORCV            20      /* receive from below */
 #define        PRU_PROTOSEND           21      /* send to below */
 /* end for protocol's internal use */

-#define PRU_SEND_EOF           22      /* send and close */
-#define PRU_NREQ               22
+#define        PRU_SEND_EOF            22      /* send and close */
+#define        PRU_NREQ                22

 
 #ifdef PRUREQUESTS
 char *prurequests[] = {
 
 #ifdef PRUREQUESTS
 char *prurequests[] = {


@@ -239,211 +375,187 @@ char *prurequests[] = {
        "RCVD",         "SEND",         "ABORT",        "CONTROL",
        "SENSE",        "RCVOOB",       "SENDOOB",      "SOCKADDR",
        "PEERADDR",     "CONNECT2",     "FASTTIMO",     "SLOWTIMO",
        "RCVD",         "SEND",         "ABORT",        "CONTROL",
        "SENSE",        "RCVOOB",       "SENDOOB",      "SOCKADDR",
        "PEERADDR",     "CONNECT2",     "FASTTIMO",     "SLOWTIMO",

-       "PROTORCV",     "PROTOSEND",
-       "SEND_EOF",
+       "PROTORCV",     "PROTOSEND",    "SEND_EOF",

 };
 };

-#endif
-
-#ifdef KERNEL                  /* users shouldn't see this decl */
+#endif /* PRUREQUESTS */
+#endif /* BSD_KERNEL_PRIVATE */

 
 struct ifnet;
 struct stat;
 struct ucred;
 struct uio;
 
 
 struct ifnet;
 struct stat;
 struct ucred;
 struct uio;
 

+#ifdef XNU_KERNEL_PRIVATE

 /*
 /*

- * If the ordering here looks odd, that's because it's alphabetical.
- * Having this structure separated out from the main protoswitch is allegedly
- * a big (12 cycles per call) lose on high-end CPUs.  We will eventually
- * migrate this stuff back into the main structure.
+ * Legacy user-protocol hooks.
+ *
+ * NOTE: Do not modify this structure, as there are modules outside of xnu
+ * which rely on the size and layout for binary compatibility.  This structure
+ * is simply used by the protosw_old structure.  Internally, user-protocol
+ * hooks use the private variant of pr_usrreqs defined down below.

  */
  */

+struct pr_usrreqs_old {
+#else

 struct pr_usrreqs {
 struct pr_usrreqs {

+#endif /* !XNU_KERNEL_PRIVATE */

        int     (*pru_abort)(struct socket *so);
        int     (*pru_accept)(struct socket *so, struct sockaddr **nam);
        int     (*pru_attach)(struct socket *so, int proto, struct proc *p);
        int     (*pru_bind)(struct socket *so, struct sockaddr *nam,
        int     (*pru_abort)(struct socket *so);
        int     (*pru_accept)(struct socket *so, struct sockaddr **nam);
        int     (*pru_attach)(struct socket *so, int proto, struct proc *p);
        int     (*pru_bind)(struct socket *so, struct sockaddr *nam,

-                                struct proc *p);
+                   struct proc *p);

        int     (*pru_connect)(struct socket *so, struct sockaddr *nam,
        int     (*pru_connect)(struct socket *so, struct sockaddr *nam,

-                                   struct proc *p);
+                   struct proc *p);

        int     (*pru_connect2)(struct socket *so1, struct socket *so2);
        int     (*pru_control)(struct socket *so, u_long cmd, caddr_t data,
        int     (*pru_connect2)(struct socket *so1, struct socket *so2);
        int     (*pru_control)(struct socket *so, u_long cmd, caddr_t data,

-                                   struct ifnet *ifp, struct proc *p);
+                   struct ifnet *ifp, struct proc *p);

        int     (*pru_detach)(struct socket *so);
        int     (*pru_disconnect)(struct socket *so);
        int     (*pru_listen)(struct socket *so, struct proc *p);
        int     (*pru_peeraddr)(struct socket *so, struct sockaddr **nam);
        int     (*pru_rcvd)(struct socket *so, int flags);
        int     (*pru_rcvoob)(struct socket *so, struct mbuf *m, int flags);
        int     (*pru_detach)(struct socket *so);
        int     (*pru_disconnect)(struct socket *so);
        int     (*pru_listen)(struct socket *so, struct proc *p);
        int     (*pru_peeraddr)(struct socket *so, struct sockaddr **nam);
        int     (*pru_rcvd)(struct socket *so, int flags);
        int     (*pru_rcvoob)(struct socket *so, struct mbuf *m, int flags);

-       int     (*pru_send)(struct socket *so, int flags, struct mbuf *m, 
-                                struct sockaddr *addr, struct mbuf *control,
-                                struct proc *p);
-#define        PRUS_OOB        0x1
-#define        PRUS_EOF        0x2
-#define        PRUS_MORETOCOME 0x4
+       int     (*pru_send)(struct socket *so, int flags, struct mbuf *m,
+                   struct sockaddr *addr, struct mbuf *control,
+                   struct proc *p);

        int     (*pru_sense)(struct socket *so, void  *sb, int isstat64);
        int     (*pru_shutdown)(struct socket *so);
        int     (*pru_sockaddr)(struct socket *so, struct sockaddr **nam);
        int     (*pru_sense)(struct socket *so, void  *sb, int isstat64);
        int     (*pru_shutdown)(struct socket *so);
        int     (*pru_sockaddr)(struct socket *so, struct sockaddr **nam);

-        
-       /*
-        * These three added later, so they are out of order.  They are used
-        * for shortcutting (fast path input/output) in some protocols.
-        * XXX - that's a lie, they are not implemented yet
-        * Rather than calling sosend() etc. directly, calls are made
-        * through these entry points.  For protocols which still use
-        * the generic code, these just point to those routines.
-        */

        int     (*pru_sosend)(struct socket *so, struct sockaddr *addr,
        int     (*pru_sosend)(struct socket *so, struct sockaddr *addr,

-                                  struct uio *uio, struct mbuf *top,
-                                  struct mbuf *control, int flags);
-       int     (*pru_soreceive)(struct socket *so, 
-                                     struct sockaddr **paddr,
-                                     struct uio *uio, struct mbuf **mp0,
-                                     struct mbuf **controlp, int *flagsp);
-       int     (*pru_sopoll)(struct socket *so, int events, 
-                                  struct ucred *cred, void *);
+                   struct uio *uio, struct mbuf *top, struct mbuf *control,
+                   int flags);
+       int     (*pru_soreceive)(struct socket *so, struct sockaddr **paddr,
+                   struct uio *uio, struct mbuf **mp0, struct mbuf **controlp,
+                   int *flagsp);
+       int     (*pru_sopoll)(struct socket *so, int events,
+                   struct ucred *cred, void *);

 };
 
 };
 

-__BEGIN_DECLS
-
-extern int     pru_abort_notsupp(struct socket *so);
-extern int     pru_accept_notsupp(struct socket *so, struct sockaddr **nam);
-extern int     pru_attach_notsupp(struct socket *so, int proto,
-                                  struct proc *p);
-extern int     pru_bind_notsupp(struct socket *so, struct sockaddr *nam,
-                                struct proc *p);
-extern int     pru_connect_notsupp(struct socket *so, struct sockaddr *nam,
-                                   struct proc *p);
-extern int     pru_connect2_notsupp(struct socket *so1, struct socket *so2);
-extern int     pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data,
-                                   struct ifnet *ifp, struct proc *p);
-extern int     pru_detach_notsupp(struct socket *so);
-extern int     pru_disconnect_notsupp(struct socket *so);
-extern int     pru_listen_notsupp(struct socket *so, struct proc *p);
-extern int     pru_peeraddr_notsupp(struct socket *so, 
-                                    struct sockaddr **nam);
-extern int     pru_rcvd_notsupp(struct socket *so, int flags);
-extern int     pru_rcvoob_notsupp(struct socket *so, struct mbuf *m,
-                                  int flags);
-extern int     pru_send_notsupp(struct socket *so, int flags, struct mbuf *m, 
-                                struct sockaddr *addr, struct mbuf *control,
-                                struct proc *p);
-extern int     pru_sense_null(struct socket *so, void * sb, int isstat64);
-extern int     pru_shutdown_notsupp(struct socket *so);
-extern int     pru_sockaddr_notsupp(struct socket *so, 
-                                    struct sockaddr **nam);
-extern int     pru_sosend_notsupp(struct socket *so, struct sockaddr *addr,
-                                  struct uio *uio, struct mbuf *top,
-                                  struct mbuf *control, int flags);
-extern int     pru_soreceive_notsupp(struct socket *so, 
-                                     struct sockaddr **paddr,
-                                     struct uio *uio, struct mbuf **mp0,
-                                     struct mbuf **controlp, int *flagsp);
-extern int     pru_sopoll_notsupp(struct socket *so, int events, 
-                                  struct ucred *cred, void *);
-
-__END_DECLS
-
-#endif /* KERNEL */
-
+#ifdef XNU_KERNEL_PRIVATE

 /*
 /*

- * The arguments to the ctlinput routine are
- *     (*protosw[].pr_ctlinput)(cmd, sa, arg);
- * where cmd is one of the commands below, sa is a pointer to a sockaddr,
- * and arg is a `void *' argument used within a protocol family.
+ * If the ordering here looks odd, that's because it's alphabetical.  These
+ * should eventually be merged back into struct protosw.
+ *
+ * Internal, private and extendable representation of pr_usrreqs.
+ *
+ * NOTE: When adding new ones, also add default callbacks in pru_sanitize().

  */
  */

-#define        PRC_IFDOWN              0       /* interface transition */
-#define        PRC_ROUTEDEAD           1       /* select new route if possible ??? */
-#define        PRC_IFUP                2       /* interface has come back up */
-#define        PRC_QUENCH2             3       /* DEC congestion bit says slow down */
-#define        PRC_QUENCH              4       /* some one said to slow down */
-#define        PRC_MSGSIZE             5       /* message size forced drop */
-#define        PRC_HOSTDEAD            6       /* host appears to be down */
-#define        PRC_HOSTUNREACH         7       /* deprecated (use PRC_UNREACH_HOST) */
-#define        PRC_UNREACH_NET         8       /* no route to network */
-#define        PRC_UNREACH_HOST        9       /* no route to host */
-#define        PRC_UNREACH_PROTOCOL    10      /* dst says bad protocol */
-#define        PRC_UNREACH_PORT        11      /* bad port # */
-/* was PRC_UNREACH_NEEDFRAG    12         (use PRC_MSGSIZE) */
-#define        PRC_UNREACH_SRCFAIL     13      /* source route failed */
-#define        PRC_REDIRECT_NET        14      /* net routing redirect */
-#define        PRC_REDIRECT_HOST       15      /* host routing redirect */
-#define        PRC_REDIRECT_TOSNET     16      /* redirect for type of service & net */
-#define        PRC_REDIRECT_TOSHOST    17      /* redirect for tos & host */
-#define        PRC_TIMXCEED_INTRANS    18      /* packet lifetime expired in transit */
-#define        PRC_TIMXCEED_REASS      19      /* lifetime expired on reass q */
-#define        PRC_PARAMPROB           20      /* header incorrect */
-#define        PRC_UNREACH_ADMIN_PROHIB        21      /* packet administrativly prohibited */
-
-#define        PRC_NCMDS               22
-
-#define        PRC_IS_REDIRECT(cmd)    \
-       ((cmd) >= PRC_REDIRECT_NET && (cmd) <= PRC_REDIRECT_TOSHOST)
-
-#ifdef PRCREQUESTS
-char   *prcrequests[] = {
-       "IFDOWN", "ROUTEDEAD", "IFUP", "DEC-BIT-QUENCH2",
-       "QUENCH", "MSGSIZE", "HOSTDEAD", "#7",
-       "NET-UNREACH", "HOST-UNREACH", "PROTO-UNREACH", "PORT-UNREACH",
-       "#12", "SRCFAIL-UNREACH", "NET-REDIRECT", "HOST-REDIRECT",
-       "TOSNET-REDIRECT", "TOSHOST-REDIRECT", "TX-INTRANS", "TX-REASS",
-       "PARAMPROB", "ADMIN-UNREACH"
+struct pr_usrreqs {
+       uint32_t pru_flags;     /* see PRUF flags below */
+       int     (*pru_abort)(struct socket *);
+       int     (*pru_accept)(struct socket *, struct sockaddr **);
+       int     (*pru_attach)(struct socket *, int proto, struct proc *);
+       int     (*pru_bind)(struct socket *, struct sockaddr *, struct proc *);
+       int     (*pru_connect)(struct socket *, struct sockaddr *,
+                   struct proc *);
+       int     (*pru_connect2)(struct socket *, struct socket *);
+       int     (*pru_connectx)(struct socket *, struct sockaddr_list **,
+                   struct sockaddr_list **, struct proc *, uint32_t,
+                   associd_t, connid_t *, uint32_t, void *, uint32_t);
+       int     (*pru_control)(struct socket *, u_long, caddr_t,
+                   struct ifnet *, struct proc *);
+       int     (*pru_detach)(struct socket *);
+       int     (*pru_disconnect)(struct socket *);
+       int     (*pru_disconnectx)(struct socket *, associd_t, connid_t);
+       int     (*pru_listen)(struct socket *, struct proc *);
+       int     (*pru_peeloff)(struct socket *, associd_t, struct socket **);
+       int     (*pru_peeraddr)(struct socket *, struct sockaddr **);
+       int     (*pru_rcvd)(struct socket *, int);
+       int     (*pru_rcvoob)(struct socket *, struct mbuf *, int);
+       int     (*pru_send)(struct socket *, int, struct mbuf *,
+                   struct sockaddr *, struct mbuf *, struct proc *);
+       int     (*pru_send_list)(struct socket *, int, struct mbuf *,
+                   struct sockaddr *, struct mbuf *, struct proc *);
+#define        PRUS_OOB        0x1
+#define        PRUS_EOF        0x2
+#define        PRUS_MORETOCOME 0x4
+       int     (*pru_sense)(struct socket *, void *, int);
+       int     (*pru_shutdown)(struct socket *);
+       int     (*pru_sockaddr)(struct socket *, struct sockaddr **);
+       int     (*pru_sopoll)(struct socket *, int, struct ucred *, void *);
+       int     (*pru_soreceive)(struct socket *, struct sockaddr **,
+                   struct uio *, struct mbuf **, struct mbuf **, int *);
+       int     (*pru_soreceive_list)(struct socket *, struct sockaddr **,
+                   struct uio **, u_int, struct mbuf **, struct mbuf **, int *);
+       int     (*pru_sosend)(struct socket *, struct sockaddr *,
+                   struct uio *, struct mbuf *, struct mbuf *, int);
+       int     (*pru_sosend_list)(struct socket *, struct sockaddr *,
+                   struct uio **, u_int, struct mbuf *, struct mbuf *, int);
+       int     (*pru_socheckopt)(struct socket *, struct sockopt *);

 };
 };

-#endif

 
 

-/*
- * The arguments to ctloutput are:
- *     (*protosw[].pr_ctloutput)(req, so, level, optname, optval, p);
- * req is one of the actions listed below, so is a (struct socket *),
- * level is an indication of which protocol layer the option is intended.
- * optname is a protocol dependent socket option request,
- * optval is a pointer to a mbuf-chain pointer, for value-return results.
- * The protocol is responsible for disposal of the mbuf chain *optval
- * if supplied,
- * the caller is responsible for any space held by *optval, when returned.
- * A non-zero return from usrreq gives an
- * UNIX error number which should be passed to higher level software.
- */
-#define        PRCO_GETOPT     0
-#define        PRCO_SETOPT     1
+/* Values for pru_flags  */
+#define        PRUF_OLD        0x10000000      /* added via net_add_proto */

 
 

-#define        PRCO_NCMDS      2
-
-#ifdef PRCOREQUESTS
-char   *prcorequests[] = {
-       "GETOPT", "SETOPT",
-};
-#endif
-
-#ifdef KERNEL
+#endif /* XNU_KERNEL_PRIVATE */

 
 __BEGIN_DECLS
 
 __BEGIN_DECLS

-void domaininit(void) __attribute__((section("__TEXT, initcode")));
-void domainfin(void) __attribute__((section("__TEXT, fincode")));
-
-void   pfctlinput(int, struct sockaddr *);
-void   pfctlinput2(int, struct sockaddr *, void *);
-struct protosw *pffindproto(int family, int protocol, int type);
-struct protosw *pffindproto_locked(int family, int protocol, int type);
-struct protosw *pffindtype(int family, int type);
-
-extern int net_add_proto(struct protosw *, struct domain *);
+extern int pru_abort_notsupp(struct socket *so);
+extern int pru_accept_notsupp(struct socket *so, struct sockaddr **nam);
+extern int pru_attach_notsupp(struct socket *so, int proto, struct proc *p);
+extern int pru_bind_notsupp(struct socket *so, struct sockaddr *nam,
+    struct proc *p);
+extern int pru_connect_notsupp(struct socket *so, struct sockaddr *nam,
+    struct proc *p);
+extern int pru_connect2_notsupp(struct socket *so1, struct socket *so2);
+#ifdef XNU_KERNEL_PRIVATE
+extern int pru_connectx_notsupp(struct socket *, struct sockaddr_list **,
+    struct sockaddr_list **, struct proc *, uint32_t, associd_t, connid_t *,
+    uint32_t, void *, uint32_t);
+extern int pru_disconnectx_notsupp(struct socket *, associd_t, connid_t);
+extern int pru_socheckopt_null(struct socket *, struct sockopt *);
+extern int pru_peeloff_notsupp(struct socket *, associd_t, struct socket **);
+#endif /* XNU_KERNEL_PRIVATE */
+extern int pru_control_notsupp(struct socket *so, u_long cmd, caddr_t data,
+    struct ifnet *ifp, struct proc *p);
+extern int pru_detach_notsupp(struct socket *so);
+extern int pru_disconnect_notsupp(struct socket *so);
+extern int pru_listen_notsupp(struct socket *so, struct proc *p);
+extern int pru_peeraddr_notsupp(struct socket *so, struct sockaddr **nam);
+extern int pru_rcvd_notsupp(struct socket *so, int flags);
+extern int pru_rcvoob_notsupp(struct socket *so, struct mbuf *m, int flags);
+extern int pru_send_notsupp(struct socket *so, int flags, struct mbuf *m,
+    struct sockaddr *addr, struct mbuf *control, struct proc *p);
+extern int pru_send_list_notsupp(struct socket *so, int flags, struct mbuf *m,
+    struct sockaddr *addr, struct mbuf *control, struct proc *p);
+extern int pru_sense_null(struct socket *so, void * sb, int isstat64);
+extern int pru_shutdown_notsupp(struct socket *so);
+extern int pru_sockaddr_notsupp(struct socket *so, struct sockaddr **nam);
+extern int pru_sosend_notsupp(struct socket *so, struct sockaddr *addr,
+    struct uio *uio,  struct mbuf *top, struct mbuf *control, int flags);
+extern int pru_sosend_list_notsupp(struct socket *so, struct sockaddr *addr,
+    struct uio **uio, u_int, struct mbuf *top, struct mbuf *control, int flags);
+extern int pru_soreceive_notsupp(struct socket *so,
+    struct sockaddr **paddr, struct uio *uio, struct mbuf **mp0,
+    struct mbuf **controlp, int *flagsp);
+extern int pru_soreceive_list_notsupp(struct socket *so,
+    struct sockaddr **paddr, struct uio **uio, u_int, struct mbuf **mp0,
+    struct mbuf **controlp, int *flagsp);
+extern int pru_sopoll_notsupp(struct socket *so, int events,
+    struct ucred *cred, void *);
+#ifdef XNU_KERNEL_PRIVATE
+extern void pru_sanitize(struct pr_usrreqs *);
+extern void domaininit(void);
+extern void domainfin(void);
+extern void pfctlinput(int, struct sockaddr *);
+extern void pfctlinput2(int, struct sockaddr *, void *);
+extern struct protosw *pffindproto_locked(int, int, int);
+extern struct protosw *pffindprotonotype(int, int);
+extern struct protosw *pffindtype(int, int);
+extern struct protosw_old *pffindproto_old(int, int, int);
+extern int net_add_proto(struct protosw *, struct domain *, int);
+extern void net_init_proto(struct protosw *, struct domain *);

 extern int net_del_proto(int, int, struct domain *);
 extern int net_del_proto(int, int, struct domain *);

-
+extern int net_add_proto_old(struct protosw_old *, struct domain_old *);
+extern int net_del_proto_old(int, int, struct domain_old *);
+extern void net_update_uptime(void);
+extern void net_update_uptime_secs(uint64_t secs);

 extern u_int64_t net_uptime(void);
 extern u_int64_t net_uptime(void);

+extern void net_uptime2timeval(struct timeval *);
+#else
+extern int net_add_proto(struct protosw *, struct domain *);
+extern int net_del_proto(int, int, struct domain *);
+#endif /* XNU_KERNEL_PRIVATE */
+extern struct protosw *pffindproto(int family, int protocol, int type);

 __END_DECLS
 __END_DECLS

-
-/* Temp hack to link static domains together */
-
-#define LINK_PROTOS(psw) \
-static void link_ ## psw ## _protos() \
-{ \
-      int i; \
-                \
-    for (i=0; i < ((sizeof(psw)/sizeof(psw[0])) - 1); i++) \
-            psw[i].pr_next = &psw[i + 1]; \
-} 
-
-#endif
-
-#endif /* PRIVATE */
+#endif /* KERNEL_PRIVATE */

 #endif /* !_SYS_PROTOSW_H_ */
 #endif /* !_SYS_PROTOSW_H_ */