xnu-1504.9.37.tar.gz

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

diff --git a/bsd/sys/socket.h b/bsd/sys/socket.h
index 65567cc1291a2d61d59c91cac6d3e42383cc2381..6b37dfced5d163e34030c07314ce5d7b1b94a2f9 100644 (file)
--- a/bsd/sys/socket.h
+++ b/bsd/sys/socket.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2010 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * 

- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource 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.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  */
 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */


@@ -56,16 +62,19 @@
  *     @(#)socket.h    8.4 (Berkeley) 2/21/94
  * $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $
  */
  *     @(#)socket.h    8.4 (Berkeley) 2/21/94
  * $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $
  */

+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 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 _SYS_SOCKET_H_
 #define        _SYS_SOCKET_H_
 
 
 #ifndef _SYS_SOCKET_H_
 #define        _SYS_SOCKET_H_
 

-#include <sys/_types.h>
+#include <sys/types.h>

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

-
-#define _NO_NAMESPACE_POLLUTION
-#include <machine/param.h>
-#undef _NO_NAMESPACE_POLLUTION
+#include <machine/_param.h>

 
 /*
  * Definitions related to sockets: types, address families, options.
 
 /*
  * Definitions related to sockets: types, address families, options.


@@ -128,9 +137,9 @@ struct iovec {
 #define        SOCK_STREAM     1               /* stream socket */
 #define        SOCK_DGRAM      2               /* datagram socket */
 #define        SOCK_RAW        3               /* raw-protocol interface */
 #define        SOCK_STREAM     1               /* stream socket */
 #define        SOCK_DGRAM      2               /* datagram socket */
 #define        SOCK_RAW        3               /* raw-protocol interface */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        SOCK_RDM        4               /* reliably-delivered message */
 #define        SOCK_RDM        4               /* reliably-delivered message */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 #define        SOCK_SEQPACKET  5               /* sequenced packet stream */
 
 /*
 #define        SOCK_SEQPACKET  5               /* sequenced packet stream */
 
 /*


@@ -142,14 +151,14 @@ struct iovec {
 #define        SO_KEEPALIVE    0x0008          /* keep connections alive */
 #define        SO_DONTROUTE    0x0010          /* just use interface addresses */
 #define        SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
 #define        SO_KEEPALIVE    0x0008          /* keep connections alive */
 #define        SO_DONTROUTE    0x0010          /* just use interface addresses */
 #define        SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
 #define SO_LINGER      0x0080          /* linger on close if data present (in ticks) */
 #else
 #define SO_LINGER      0x1080          /* linger on close if data present (in seconds) */
 #define        SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
 #define SO_LINGER      0x0080          /* linger on close if data present (in ticks) */
 #else
 #define SO_LINGER      0x1080          /* linger on close if data present (in seconds) */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 #define        SO_OOBINLINE    0x0100          /* leave received OOB data in line */
 #define        SO_OOBINLINE    0x0100          /* leave received OOB data in line */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        SO_REUSEPORT    0x0200          /* allow local address & port reuse */
 #define        SO_TIMESTAMP    0x0400          /* timestamp received dgram traffic */
 #ifndef __APPLE__
 #define        SO_REUSEPORT    0x0200          /* allow local address & port reuse */
 #define        SO_TIMESTAMP    0x0400          /* timestamp received dgram traffic */
 #ifndef __APPLE__


@@ -160,7 +169,7 @@ struct iovec {
 #define SO_WANTMORE            0x4000          /* APPLE: Give hint when more data ready */
 #define SO_WANTOOBFLAG 0x8000          /* APPLE: Want OOB in MSG_FLAG on receive */
 #endif
 #define SO_WANTMORE            0x4000          /* APPLE: Give hint when more data ready */
 #define SO_WANTOOBFLAG 0x8000          /* APPLE: Want OOB in MSG_FLAG on receive */
 #endif

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /*
  * Additional options, not kept in so_options.
 
 /*
  * Additional options, not kept in so_options.


@@ -173,7 +182,7 @@ struct iovec {
 #define SO_RCVTIMEO    0x1006          /* receive timeout */
 #define        SO_ERROR        0x1007          /* get error status and clear */
 #define        SO_TYPE         0x1008          /* get socket type */
 #define SO_RCVTIMEO    0x1006          /* receive timeout */
 #define        SO_ERROR        0x1007          /* get error status and clear */
 #define        SO_TYPE         0x1008          /* get socket type */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 /*efine        SO_PRIVSTATE    0x1009             get/deny privileged state */
 #ifdef __APPLE__
 #define SO_NREAD       0x1020          /* APPLE: get 1st-packet byte count */
 /*efine        SO_PRIVSTATE    0x1009             get/deny privileged state */
 #ifdef __APPLE__
 #define SO_NREAD       0x1020          /* APPLE: get 1st-packet byte count */


@@ -181,9 +190,30 @@ struct iovec {
 #define SO_NOSIGPIPE   0x1022          /* APPLE: No SIGPIPE on EPIPE */
 #define SO_NOADDRERR   0x1023          /* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */
 #define SO_NWRITE      0x1024          /* APPLE: Get number of bytes currently in send socket buffer */
 #define SO_NOSIGPIPE   0x1022          /* APPLE: No SIGPIPE on EPIPE */
 #define SO_NOADDRERR   0x1023          /* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */
 #define SO_NWRITE      0x1024          /* APPLE: Get number of bytes currently in send socket buffer */

+#define SO_REUSESHAREUID       0x1025          /* APPLE: Allow reuse of port/socket by different userids */
+#ifdef __APPLE_API_PRIVATE
+#define SO_NOTIFYCONFLICT      0x1026  /* APPLE: send notification if there is a bind on a port which is already in use */
+#define        SO_UPCALLCLOSEWAIT      0x1027  /* APPLE: block on close until an upcall returns */
+#endif

 #define SO_LINGER_SEC  0x1080          /* linger on close if data present (in seconds) */
 #define SO_LINGER_SEC  0x1080          /* linger on close if data present (in seconds) */

+#define SO_RESTRICTIONS        0x1081  /* APPLE: deny inbound/outbound/both/flag set */
+#define SO_RESTRICT_DENYIN             0x00000001      /* flag for SO_RESTRICTIONS - deny inbound */
+#define SO_RESTRICT_DENYOUT            0x00000002      /* flag for SO_RESTRICTIONS - deny outbound */
+#define SO_RESTRICT_DENYSET            0x80000000      /* flag for SO_RESTRICTIONS - deny has been set */
+#define SO_RANDOMPORT   0x1082  /* APPLE: request local port randomization */
+#define SO_NP_EXTENSIONS       0x1083  /* To turn off some POSIX behavior */

 #endif
 #endif

-#endif /* !_POSIX_C_SOURCE */
+#ifdef PRIVATE
+#define        SO_EXECPATH     0x1085          /* Application Firewall Socket option */
+#define SO_TRAFFIC_CLASS       0x1086          /* Traffic class */
+#define  SO_TC_BE      0               /* Best effort, normal */
+#define  SO_TC_BK      1               /* Background, low priority or bulk traffic */
+#define  SO_TC_VI      2               /* Interactive video, constant bit rate, low latency */
+#define  SO_TC_VO      3               /* Interactive voice, constant bit rate, lowest latency */
+#endif
+#define        SO_LABEL        0x1010          /* socket's MAC label */
+#define        SO_PEERLABEL    0x1011          /* socket's peer MAC label */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /*
  * Structure used for manipulating linger option.
 
 /*
  * Structure used for manipulating linger option.


@@ -200,21 +230,43 @@ struct    accept_filter_arg {
 };
 #endif
 
 };
 #endif
 

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#ifdef __APPLE__
+
+/*
+ * Structure to control non-portable Sockets extension to POSIX  
+ */
+struct so_np_extensions {
+       u_int32_t       npx_flags;
+       u_int32_t       npx_mask;
+};
+
+#define SONPX_SETOPTSHUT       0x000000001     /* flag for allowing setsockopt after shutdown */
+
+
+#ifdef KERNEL_PRIVATE
+#define SONPX_MASK_VALID               (SONPX_SETOPTSHUT)
+#endif
+
+#endif
+#endif
+

 /*
  * Level number for (get/set)sockopt() to apply to socket itself.
  */
 #define        SOL_SOCKET      0xffff          /* options for socket level */
 
 /*
  * Level number for (get/set)sockopt() to apply to socket itself.
  */
 #define        SOL_SOCKET      0xffff          /* options for socket level */
 

+

 /*
  * Address families.
  */
 #define        AF_UNSPEC       0               /* unspecified */
 #define        AF_UNIX         1               /* local to host (pipes) */
 /*
  * Address families.
  */
 #define        AF_UNSPEC       0               /* unspecified */
 #define        AF_UNIX         1               /* local to host (pipes) */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        AF_LOCAL        AF_UNIX         /* backward compatibility */
 #define        AF_LOCAL        AF_UNIX         /* backward compatibility */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 #define        AF_INET         2               /* internetwork: UDP, TCP, etc. */
 #define        AF_INET         2               /* internetwork: UDP, TCP, etc. */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        AF_IMPLINK      3               /* arpanet imp addresses */
 #define        AF_PUP          4               /* pup protocols: e.g. BSP */
 #define        AF_CHAOS        5               /* mit CHAOS protocols */
 #define        AF_IMPLINK      3               /* arpanet imp addresses */
 #define        AF_PUP          4               /* pup protocols: e.g. BSP */
 #define        AF_CHAOS        5               /* mit CHAOS protocols */


@@ -246,9 +298,9 @@ struct      accept_filter_arg {
 #define        AF_ISDN         28              /* Integrated Services Digital Network*/
 #define        AF_E164         AF_ISDN         /* CCITT E.164 recommendation */
 #define        pseudo_AF_KEY   29              /* Internal key-management function */
 #define        AF_ISDN         28              /* Integrated Services Digital Network*/
 #define        AF_E164         AF_ISDN         /* CCITT E.164 recommendation */
 #define        pseudo_AF_KEY   29              /* Internal key-management function */

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 #define        AF_INET6        30              /* IPv6 */
 #define        AF_INET6        30              /* IPv6 */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        AF_NATM         31              /* native ATM access */
 #ifdef __APPLE__
 #define AF_SYSTEM      32              /* Kernel event messages */
 #define        AF_NATM         31              /* native ATM access */
 #ifdef __APPLE__
 #define AF_SYSTEM      32              /* Kernel event messages */


@@ -269,8 +321,9 @@ struct      accept_filter_arg {
 #ifndef __APPLE__
 #define        AF_NETGRAPH     32              /* Netgraph sockets */
 #endif
 #ifndef __APPLE__
 #define        AF_NETGRAPH     32              /* Netgraph sockets */
 #endif

-#define        AF_MAX          37
-#endif /* !_POSIX_C_SOURCE */
+#define AF_IEEE80211    37              /* IEEE 802.11 protocol */
+#define        AF_MAX          38
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /*
  * [XSI] Structure used by kernel to store most addresses.
 
 /*
  * [XSI] Structure used by kernel to store most addresses.


@@ -281,7 +334,7 @@ struct sockaddr {
        char            sa_data[14];    /* [XSI] addr value (actually larger) */
 };
 
        char            sa_data[14];    /* [XSI] addr value (actually larger) */
 };
 

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        SOCK_MAXADDRLEN 255             /* longest possible addresses */
 
 /*
 #define        SOCK_MAXADDRLEN 255             /* longest possible addresses */
 
 /*


@@ -292,7 +345,7 @@ struct sockproto {
        __uint16_t      sp_family;              /* address family */
        __uint16_t      sp_protocol;            /* protocol */
 };
        __uint16_t      sp_family;              /* address family */
        __uint16_t      sp_protocol;            /* protocol */
 };

-#endif /* !_POSIX_C_SOURCE*/
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE)*/

 
 /*
  * RFC 2553: protocol-independent placeholder for socket addresses
 
 /*
  * RFC 2553: protocol-independent placeholder for socket addresses


@@ -385,8 +438,9 @@ struct sockaddr_storage {
  *
  * Further levels are defined by the individual families below.
  */
  *
  * Further levels are defined by the individual families below.
  */

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define NET_MAXID      AF_MAX
 #define NET_MAXID      AF_MAX

-
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 
 #ifdef KERNEL_PRIVATE
 #define CTL_NET_NAMES { \
 
 #ifdef KERNEL_PRIVATE
 #define CTL_NET_NAMES { \


@@ -427,8 +481,9 @@ struct sockaddr_storage {
        { "ppp", CTLTYPE_NODE }, \
        { "hdrcomplete", CTLTYPE_NODE }, \
 }
        { "ppp", CTLTYPE_NODE }, \
        { "hdrcomplete", CTLTYPE_NODE }, \
 }

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

 
 

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 /*
  * PF_ROUTE - Routing table
  *
 /*
  * PF_ROUTE - Routing table
  *


@@ -445,6 +500,7 @@ struct sockaddr_storage {
 #define NET_RT_IFLIST2 6               /* interface list with addresses */
 #define NET_RT_DUMP2                     7               /* dump; may limit to a.f. */
 #define        NET_RT_MAXID            8
 #define NET_RT_IFLIST2 6               /* interface list with addresses */
 #define NET_RT_DUMP2                     7               /* dump; may limit to a.f. */
 #define        NET_RT_MAXID            8

+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 
 #ifdef KERNEL_PRIVATE
 #define CTL_NET_RT_NAMES { \
 
 #ifdef KERNEL_PRIVATE
 #define CTL_NET_RT_NAMES { \


@@ -458,7 +514,7 @@ struct sockaddr_storage {
         { "dump2", CTLTYPE_STRUCT }, \
 }
 
         { "dump2", CTLTYPE_STRUCT }, \
 }
 

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

 
 /*
  * Maximum queue length specifiable by listen.
 
 /*
  * Maximum queue length specifiable by listen.


@@ -479,15 +535,12 @@ struct msghdr {
        int             msg_flags;      /* [XSI] flags on received message */
 };
 
        int             msg_flags;      /* [XSI] flags on received message */
 };
 

-// LP64todo - should this move?

 #ifdef KERNEL
 #ifdef KERNEL

-/* LP64 version of struct msghdr.  all pointers 
- * grow when we're dealing with a 64-bit process.
- * WARNING - keep in sync with struct msghdr
+/*
+ * In-kernel representation of "struct msghdr" from
+ * userspace. Has enough precision for 32-bit or
+ * 64-bit clients, but does not need to be packed.

  */
  */

-#if __DARWIN_ALIGN_NATURAL
-#pragma options align=natural
-#endif

 
 struct user_msghdr {
        user_addr_t     msg_name;               /* optional address */
 
 struct user_msghdr {
        user_addr_t     msg_name;               /* optional address */


@@ -499,9 +552,35 @@ struct user_msghdr {
        int             msg_flags;              /* flags on received message */
 };
 
        int             msg_flags;              /* flags on received message */
 };
 

-#if __DARWIN_ALIGN_NATURAL
-#pragma options align=reset
-#endif
+/*
+ * LP64 user version of struct msghdr.
+ * WARNING - keep in sync with struct msghdr
+ */
+
+struct user64_msghdr {
+       user64_addr_t   msg_name;               /* optional address */
+       socklen_t       msg_namelen;            /* size of address */
+       user64_addr_t   msg_iov;                /* scatter/gather array */
+       int             msg_iovlen;             /* # elements in msg_iov */
+       user64_addr_t   msg_control;            /* ancillary data, see below */
+       socklen_t       msg_controllen;         /* ancillary data buffer len */
+       int             msg_flags;              /* flags on received message */
+};
+
+/*
+ * ILP32 user version of struct msghdr.
+ * WARNING - keep in sync with struct msghdr
+ */
+
+struct user32_msghdr {
+       user32_addr_t   msg_name;       /* optional address */
+       socklen_t       msg_namelen;    /* size of address */
+       user32_addr_t   msg_iov;        /* scatter/gather array */
+       int             msg_iovlen;     /* # elements in msg_iov */
+       user32_addr_t   msg_control;    /* ancillary data, see below */
+       socklen_t       msg_controllen; /* ancillary data buffer len */
+       int             msg_flags;      /* flags on received message */
+};

 
 #endif // KERNEL
 
 
 #endif // KERNEL
 


@@ -512,7 +591,7 @@ struct user_msghdr {
 #define        MSG_TRUNC       0x10            /* data discarded before delivery */
 #define        MSG_CTRUNC      0x20            /* control data lost before delivery */
 #define        MSG_WAITALL     0x40            /* wait for full request or error */
 #define        MSG_TRUNC       0x10            /* data discarded before delivery */
 #define        MSG_CTRUNC      0x20            /* control data lost before delivery */
 #define        MSG_WAITALL     0x40            /* wait for full request or error */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        MSG_DONTWAIT    0x80            /* this message should be nonblocking */
 #define        MSG_EOF         0x100           /* data completes connection */
 #ifdef __APPLE__
 #define        MSG_DONTWAIT    0x80            /* this message should be nonblocking */
 #define        MSG_EOF         0x100           /* data completes connection */
 #ifdef __APPLE__


@@ -523,7 +602,9 @@ struct user_msghdr {
 #define MSG_HAVEMORE   0x2000          /* Data ready to be read */
 #define MSG_RCVMORE    0x4000          /* Data remains in current pkt */
 #endif
 #define MSG_HAVEMORE   0x2000          /* Data ready to be read */
 #define MSG_RCVMORE    0x4000          /* Data remains in current pkt */
 #endif

-#define MSG_COMPAT      0x8000         /* used in sendit() */
+#ifdef KERNEL_PRIVATE
+#define MSG_COMPAT      0x8000         /* deprecated */
+#endif /* KERNEL_PRIVATE */

 #define MSG_NEEDSA     0x10000         /* Fail receive if socket address cannot be allocated */
 #ifdef KERNEL_PRIVATE
 #define MSG_NBIO       0x20000         /* FIONBIO mode, used by fifofs */
 #define MSG_NEEDSA     0x10000         /* Fail receive if socket address cannot be allocated */
 #ifdef KERNEL_PRIVATE
 #define MSG_NBIO       0x20000         /* FIONBIO mode, used by fifofs */


@@ -531,7 +612,7 @@ struct user_msghdr {
 #ifdef KERNEL
 #define MSG_USEUPCALL  0x80000000 /* Inherit upcall in sock_accept */
 #endif
 #ifdef KERNEL
 #define MSG_USEUPCALL  0x80000000 /* Inherit upcall in sock_accept */
 #endif

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /*
  * Header for ancillary data objects in msg_control buffer.
 
 /*
  * Header for ancillary data objects in msg_control buffer.


@@ -546,7 +627,7 @@ struct cmsghdr {
 /* followed by unsigned char  cmsg_data[]; */
 };
 
 /* followed by unsigned char  cmsg_data[]; */
 };
 

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #ifndef __APPLE__
 /*
  * While we may have more groups than this, the cmsgcred struct must
 #ifndef __APPLE__
 /*
  * While we may have more groups than this, the cmsgcred struct must


@@ -571,40 +652,56 @@ struct cmsgcred {
        gid_t   cmcred_groups[CMGROUP_MAX];     /* groups */
 };
 #endif
        gid_t   cmcred_groups[CMGROUP_MAX];     /* groups */
 };
 #endif

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /* given pointer to struct cmsghdr, return pointer to data */
 #define        CMSG_DATA(cmsg)         ((unsigned char *)(cmsg) + \
 
 /* given pointer to struct cmsghdr, return pointer to data */
 #define        CMSG_DATA(cmsg)         ((unsigned char *)(cmsg) + \

-                                ALIGN(sizeof(struct cmsghdr)))
+                                __DARWIN_ALIGN32(sizeof(struct cmsghdr)))

 
 

-/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
-#define        CMSG_NXTHDR(mhdr, cmsg) \
-       (((unsigned char *)(cmsg) + ALIGN((cmsg)->cmsg_len) + \
-         ALIGN(sizeof(struct cmsghdr)) > \
-           (unsigned char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
-           (struct cmsghdr *)0 /* NULL */ : \
-           (struct cmsghdr *)((unsigned char *)(cmsg) + ALIGN((cmsg)->cmsg_len)))
+/*
+ * RFC 2292 requires to check msg_controllen, in case that the kernel returns
+ * an empty list for some reasons.
+ */
+#define CMSG_FIRSTHDR(mhdr) \
+        ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
+         (struct cmsghdr *)(mhdr)->msg_control : \
+         (struct cmsghdr *)0L)

 
 

-#define        CMSG_FIRSTHDR(mhdr)     ((struct cmsghdr *)(mhdr)->msg_control)

 
 

-#ifndef _POSIX_C_SOURCE
+/* 
+ * Given pointer to struct cmsghdr, return pointer to next cmsghdr
+ * RFC 2292 says that CMSG_NXTHDR(mhdr, NULL) is equivalent to CMSG_FIRSTHDR(mhdr)
+ */
+#define        CMSG_NXTHDR(mhdr, cmsg)                                         \
+       ((char *)(cmsg) == (char *)0L ? CMSG_FIRSTHDR(mhdr) :           \
+        ((((unsigned char *)(cmsg) +                                   \
+           __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) +            \
+           __DARWIN_ALIGN32(sizeof(struct cmsghdr))) >                 \
+           ((unsigned char *)(mhdr)->msg_control +                     \
+            (mhdr)->msg_controllen)) ?                                 \
+         (struct cmsghdr *)0L /* NULL */ :                             \
+         (struct cmsghdr *)((unsigned char *)(cmsg) +                  \
+                           __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len))))
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 /* RFC 2292 additions */
 /* RFC 2292 additions */

-#define        CMSG_SPACE(l)           (ALIGN(sizeof(struct cmsghdr)) + ALIGN(l))
-#define        CMSG_LEN(l)             (ALIGN(sizeof(struct cmsghdr)) + (l))
+#define        CMSG_SPACE(l)           (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + __DARWIN_ALIGN32(l))
+#define        CMSG_LEN(l)             (__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + (l))

 
 #ifdef KERNEL
 
 #ifdef KERNEL

-#define        CMSG_ALIGN(n)   ALIGN(n)
+#define        CMSG_ALIGN(n)   __DARWIN_ALIGN32(n)

 #endif
 #endif

-#endif /* !_POSIX_C_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /* "Socket"-level control message types: */
 #define        SCM_RIGHTS      0x01            /* access rights (array of int) */
 
 /* "Socket"-level control message types: */
 #define        SCM_RIGHTS      0x01            /* access rights (array of int) */

-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #define        SCM_TIMESTAMP   0x02            /* timestamp (struct timeval) */
 #define        SCM_CREDS       0x03            /* process creds (struct cmsgcred) */
 
 #define        SCM_TIMESTAMP   0x02            /* timestamp (struct timeval) */
 #define        SCM_CREDS       0x03            /* process creds (struct cmsgcred) */
 

+#ifdef KERNEL_PRIVATE

 /*
 /*

- * 4.3 compat sockaddr, move to compat file later
+ * 4.3 compat sockaddr (deprecated)

  */
 struct osockaddr {
        __uint16_t      sa_family;      /* address family */
  */
 struct osockaddr {
        __uint16_t      sa_family;      /* address family */


@@ -612,9 +709,8 @@ struct osockaddr {
 };
 
 /*
 };
 
 /*

- * 4.3-compat message header (move to compat file later).
+ * 4.3-compat message header (deprecated)

  */
  */

-       // LP64todo - fix this.  should msg_iov be * iovec_64?

 struct omsghdr {
        void            *msg_name;              /* optional address */
        socklen_t       msg_namelen;            /* size of address */
 struct omsghdr {
        void            *msg_name;              /* optional address */
        socklen_t       msg_namelen;            /* size of address */


@@ -623,7 +719,8 @@ struct omsghdr {
        void            *msg_accrights;         /* access rights sent/rcvd */
        int             msg_accrightslen;
 };
        void            *msg_accrights;         /* access rights sent/rcvd */
        int             msg_accrightslen;
 };

-#endif /* !_POSIX_C_SOURCE */
+#endif /* KERNEL_PRIVATE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 
 /*
  * howto arguments for shutdown(2), specified by Posix.1g.
 
 /*
  * howto arguments for shutdown(2), specified by Posix.1g.


@@ -632,8 +729,7 @@ struct omsghdr {
 #define        SHUT_WR         1               /* shut down the writing side */
 #define        SHUT_RDWR       2               /* shut down both sides */
 
 #define        SHUT_WR         1               /* shut down the writing side */
 #define        SHUT_RDWR       2               /* shut down both sides */
 

-#ifndef _POSIX_C_SOURCE
-#if SENDFILE
+#if !defined(_POSIX_C_SOURCE)

 /*
  * sendfile(2) header/trailer struct
  */
 /*
  * sendfile(2) header/trailer struct
  */


@@ -643,44 +739,70 @@ struct sf_hdtr {
        struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
        int trl_cnt;            /* number of trailer iovec's */
 };
        struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
        int trl_cnt;            /* number of trailer iovec's */
 };

-#endif
+
+#ifdef KERNEL
+
+/* In-kernel representation */
+struct user_sf_hdtr {
+       user_addr_t headers;    /* pointer to an array of header struct iovec's */
+       int hdr_cnt;            /* number of header iovec's */
+       user_addr_t trailers;   /* pointer to an array of trailer struct iovec's */
+       int trl_cnt;            /* number of trailer iovec's */
+};
+
+/* LP64 user version of struct sf_hdtr */
+struct user64_sf_hdtr {
+       user64_addr_t headers;  /* pointer to an array of header struct iovec's */
+       int hdr_cnt;            /* number of header iovec's */
+       user64_addr_t trailers; /* pointer to an array of trailer struct iovec's */
+       int trl_cnt;            /* number of trailer iovec's */
+};
+
+/* ILP32 user version of struct sf_hdtr */
+struct user32_sf_hdtr {
+       user32_addr_t headers;  /* pointer to an array of header struct iovec's */
+       int hdr_cnt;            /* number of header iovec's */
+       user32_addr_t trailers; /* pointer to an array of trailer struct iovec's */
+       int trl_cnt;            /* number of trailer iovec's */
+};
+
+#endif /* KERNEL */
+

 #endif /* !_POSIX_C_SOURCE */
 
 #ifndef        KERNEL
 __BEGIN_DECLS
 int    accept(int, struct sockaddr * __restrict, socklen_t * __restrict)
 #endif /* !_POSIX_C_SOURCE */
 
 #ifndef        KERNEL
 __BEGIN_DECLS
 int    accept(int, struct sockaddr * __restrict, socklen_t * __restrict)

-               __DARWIN_ALIAS(accept);
+               __DARWIN_ALIAS_C(accept);

 int    bind(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(bind);
 int    bind(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(bind);

-int    connect(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS( connect);
+int    connect(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C( connect);

 int    getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict)
                __DARWIN_ALIAS(getpeername);
 int    getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict)
                __DARWIN_ALIAS(getsockname);
 int    getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
 int    listen(int, int) __DARWIN_ALIAS(listen);
 int    getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict)
                __DARWIN_ALIAS(getpeername);
 int    getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict)
                __DARWIN_ALIAS(getsockname);
 int    getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
 int    listen(int, int) __DARWIN_ALIAS(listen);

-ssize_t        recv(int, void *, size_t, int) __DARWIN_ALIAS(recv);
+ssize_t        recv(int, void *, size_t, int) __DARWIN_ALIAS_C(recv);

 ssize_t        recvfrom(int, void *, size_t, int, struct sockaddr * __restrict,
 ssize_t        recvfrom(int, void *, size_t, int, struct sockaddr * __restrict,

-               socklen_t * __restrict) __DARWIN_ALIAS(recvfrom);
-ssize_t        recvmsg(int, struct msghdr *, int) __DARWIN_ALIAS(recvmsg);
-ssize_t        send(int, const void *, size_t, int) __DARWIN_ALIAS(send);
-ssize_t        sendmsg(int, const struct msghdr *, int) __DARWIN_ALIAS(sendmsg);
+               socklen_t * __restrict) __DARWIN_ALIAS_C(recvfrom);
+ssize_t        recvmsg(int, struct msghdr *, int) __DARWIN_ALIAS_C(recvmsg);
+ssize_t        send(int, const void *, size_t, int) __DARWIN_ALIAS_C(send);
+ssize_t        sendmsg(int, const struct msghdr *, int) __DARWIN_ALIAS_C(sendmsg);

 ssize_t        sendto(int, const void *, size_t,
 ssize_t        sendto(int, const void *, size_t,

-               int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(sendto);
+               int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(sendto);

 int    setsockopt(int, int, int, const void *, socklen_t);
 int    shutdown(int, int);
 int    setsockopt(int, int, int, const void *, socklen_t);
 int    shutdown(int, int);

+int    sockatmark(int);

 int    socket(int, int, int);
 int    socketpair(int, int, int, int *) __DARWIN_ALIAS(socketpair);
 int    socket(int, int, int);
 int    socketpair(int, int, int, int *) __DARWIN_ALIAS(socketpair);

-/*
- * NOTIMP:
- * int sockatmark(int s);
- */

 
 

-#ifndef _POSIX_C_SOURCE
-#if SENDFILE
-int    sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
-#endif
-void   pfctlinput(int, struct sockaddr *);
+#if !defined(_POSIX_C_SOURCE)
+int    sendfile(int, int, off_t, off_t *, struct sf_hdtr *, int);

 #endif /* !_POSIX_C_SOURCE */
 #endif /* !_POSIX_C_SOURCE */

+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+void   pfctlinput(int, struct sockaddr *);
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

 __END_DECLS
 
 #endif /* !KERNEL */
 __END_DECLS
 
 #endif /* !KERNEL */