/*
- * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 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,
- * 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 */
* @(#)socketvar.h 8.3 (Berkeley) 2/19/95
* $FreeBSD: src/sys/sys/socketvar.h,v 1.46.2.6 2001/08/31 13:45:49 jlemon 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_SOCKETVAR_H_
-#define _SYS_SOCKETVAR_H_
+#define _SYS_SOCKETVAR_H_
#include <sys/appleapiopts.h>
#include <sys/queue.h> /* for TAILQ macros */
#include <sys/select.h> /* for struct selinfo */
#include <net/kext_net.h>
#include <sys/ev.h>
+#include <sys/cdefs.h>
+
/*
* Hacks to get around compiler complaints
*/
struct mbuf;
-struct kextcb;
+struct socket_filter_entry;
struct protosw;
struct sockif;
struct sockutil;
+#ifdef KERNEL_PRIVATE
/* strings for sleep message: */
-#ifdef __APPLE_API_UNSTABLE
extern char netio[], netcon[], netcls[];
-#define SOCKET_CACHE_ON
-#define SO_CACHE_FLUSH_INTERVAL 1 /* Seconds */
-#define SO_CACHE_TIME_LIMIT (120/SO_CACHE_FLUSH_INTERVAL) /* Seconds */
-#define SO_CACHE_MAX_FREE_BATCH 50
-#define MAX_CACHED_SOCKETS 60000
-#define TEMPDEBUG 0
+#define SOCKET_CACHE_ON
+#define SO_CACHE_FLUSH_INTERVAL 1 /* Seconds */
+#define SO_CACHE_TIME_LIMIT (120/SO_CACHE_FLUSH_INTERVAL) /* Seconds */
+#define SO_CACHE_MAX_FREE_BATCH 50
+#define MAX_CACHED_SOCKETS 60000
+#define TEMPDEBUG 0
/*
* Kernel structure per socket.
* handle on protocol and pointer to protocol
* private data and error information.
*/
+#endif /* KERNEL_PRIVATE */
+
typedef u_quad_t so_gen_t;
+#ifdef PRIVATE
+#define SO_TC_STATS_MAX 4
+
+struct data_stats {
+ u_int64_t rxpackets;
+ u_int64_t rxbytes;
+ u_int64_t txpackets;
+ u_int64_t txbytes;
+};
+#endif /* PRIVATE */
+
+#ifdef KERNEL_PRIVATE
#ifndef __APPLE__
/* We don't support BSD style socket filters */
struct accept_filter;
#endif
struct socket {
- int so_zone; /* zone we were allocated from */
- short so_type; /* generic type, see socket.h */
- short so_options; /* from socket call, see socket.h */
+ int so_zone; /* zone we were allocated from */
+ short so_type; /* generic type, see socket.h */
+ u_int32_t so_options; /* from socket call, see socket.h */
short so_linger; /* time to linger while closing */
- short so_state; /* internal state flags SS_*, below */
- caddr_t so_pcb; /* protocol control block */
+ short so_state; /* internal state flags SS_*, below */
+ void *so_pcb; /* protocol control block */
struct protosw *so_proto; /* protocol handle */
-/*
- * Variables for connection queuing.
- * Socket where accepts occur is so_head in all subsidiary sockets.
- * If so_head is 0, socket is not related to an accept.
- * For head socket so_incomp queues partially completed connections,
- * while so_comp is a queue of connections ready to be accepted.
- * If a connection is aborted and it has so_head set, then
- * it has to be pulled out of either so_incomp or so_comp.
- * We allow connections to queue up based on current queue lengths
- * and limit on number of queued connections for this socket.
- */
+ /*
+ * Variables for connection queueing.
+ * Socket where accepts occur is so_head in all subsidiary sockets.
+ * If so_head is 0, socket is not related to an accept.
+ * For head socket so_incomp queues partially completed connections,
+ * while so_comp is a queue of connections ready to be accepted.
+ * If a connection is aborted and it has so_head set, then
+ * it has to be pulled out of either so_incomp or so_comp.
+ * We allow connections to queue up based on current queue lengths
+ * and limit on number of queued connections for this socket.
+ */
struct socket *so_head; /* back pointer to accept socket */
- TAILQ_HEAD(, socket) so_incomp; /* queue of partial unaccepted connections */
- TAILQ_HEAD(, socket) so_comp; /* queue of complete unaccepted connections */
+ TAILQ_HEAD(, socket) so_incomp; /* q of partially unaccepted conns */
+ TAILQ_HEAD(, socket) so_comp; /* q of complete unaccepted conns */
TAILQ_ENTRY(socket) so_list; /* list of unaccepted connections */
short so_qlen; /* number of unaccepted connections */
short so_incqlen; /* number of unaccepted incomplete
short so_timeo; /* connection timeout */
u_short so_error; /* error affecting connection */
pid_t so_pgid; /* pgid for signals */
- u_long so_oobmark; /* chars to oob mark */
+ u_int32_t so_oobmark; /* chars to oob mark */
#ifndef __APPLE__
/* We don't support AIO ops */
TAILQ_HEAD(, aiocblist) so_aiojobq; /* AIO ops waiting on socket */
#endif
-/*
- * Variables for socket buffering.
- */
+ /*
+ * Variables for socket buffering.
+ */
struct sockbuf {
- u_long sb_cc; /* actual chars in buffer */
- u_long sb_hiwat; /* max actual char count */
- u_long sb_mbcnt; /* chars of mbufs used */
- u_long sb_mbmax; /* max chars of mbufs to use */
- long sb_lowat; /* low water mark */
+ u_int32_t sb_cc; /* actual chars in buffer */
+ u_int32_t sb_hiwat; /* max actual char count */
+ u_int32_t sb_mbcnt; /* chars of mbufs used */
+ u_int32_t sb_mbmax; /* max chars of mbufs to use */
+ u_int32_t sb_ctl; /* non-data chars in buffer */
+ u_int32_t sb_lowat; /* low water mark */
struct mbuf *sb_mb; /* the mbuf chain */
+ struct mbuf *sb_mbtail; /* the last mbuf in the chain */
+ struct mbuf *sb_lastrecord; /* first mbuf of last record */
#if __APPLE__
- struct socket *sb_so; /* socket back ptr for kexts */
+ struct socket *sb_so; /* socket back ptr for kexts */
#endif
struct selinfo sb_sel; /* process selecting read/write */
short sb_flags; /* flags, see below */
- short sb_timeo; /* timeout for read/write */
- void *reserved1; /* for future use if needed */
- void *reserved2;
+ struct timeval sb_timeo; /* timeout for read/write */
+ u_int32_t sb_idealsize; /* Ideal size for the sb based on bandwidth and delay */
+ void *reserved1[4]; /* for future use */
} so_rcv, so_snd;
-#define SB_MAX (256*1024) /* default for max chars in sockbuf */
+#define SB_MAX (8192*1024) /* default for max chars in sockbuf */
+#define LOW_SB_MAX (2*9*1024) /* lower limit on max socket buffer size, 2 max datagrams */
#define SB_LOCK 0x01 /* lock on data queue */
#define SB_WANT 0x02 /* someone is waiting to lock */
#define SB_WAIT 0x04 /* someone is waiting for data/space */
#define SB_SEL 0x08 /* someone is selecting */
-#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */
-#define SB_UPCALL 0x20 /* someone wants an upcall */
-#define SB_NOINTR 0x40 /* operations not interruptible */
-#define SB_KNOTE 0x100 /* kernel note attached */
+#define SB_ASYNC 0x10 /* ASYNC I/O, need signals */
+#define SB_UPCALL 0x20 /* someone wants an upcall */
+#define SB_NOINTR 0x40 /* operations not interruptible */
+#define SB_KNOTE 0x100 /* kernel note attached */
+#define SB_USRSIZE 0x200 /* user specified sbreserve */
#ifndef __APPLE__
-#define SB_AIO 0x80 /* AIO operations queued */
+#define SB_AIO 0x80 /* AIO operations queued */
#else
#define SB_NOTIFY (SB_WAIT|SB_SEL|SB_ASYNC)
-#define SB_RECV 0x8000 /* this is rcv sb */
+#define SB_DROP 0x400 /* does not accept any more data */
+#define SB_UNIX 0x800 /* UNIX domain socket buffer */
+#define SB_AUTOSIZE 0x1000 /* automatically size socket buffer */
+#define SB_TRIM 0x2000 /* Trim the socket buffer */
+#define SB_RECV 0x8000 /* this is rcv sb */
- caddr_t so_tpcb; /* Wisc. protocol control block - XXX unused? */
+ caddr_t so_tpcb; /* Wisc. protocol control block, used by some kexts */
#endif
- void (*so_upcall) __P((struct socket *so, caddr_t arg, int waitf));
+ void (*so_upcall)(struct socket *so, caddr_t arg, int waitf);
caddr_t so_upcallarg; /* Arg for above */
- uid_t so_uid; /* who opened the socket */
+ kauth_cred_t so_cred; /* cred of who opened the socket */
/* NB: generation count must not be first; easiest to make it last. */
so_gen_t so_gencnt; /* generation count */
#ifndef __APPLE__
void *so_emuldata; /* private data for emulators */
- struct so_accf {
+ struct so_accf {
struct accept_filter *so_accept_filter;
void *so_accept_filter_arg; /* saved filter args */
char *so_accept_filter_str; /* saved user args */
} *so_accf;
#else
- TAILQ_HEAD(,eventqelt) so_evlist;
- int cached_in_sock_layer; /* Is socket bundled with pcb/pcb.inp_ppcb? */
+ TAILQ_HEAD(, eventqelt) so_evlist;
+ int cached_in_sock_layer; /* bundled with pcb/pcb.inp_ppcb? */
struct socket *cache_next;
struct socket *cache_prev;
- u_long cache_timestamp;
+ u_int32_t cache_timestamp;
caddr_t so_saved_pcb; /* Saved pcb when cacheing */
struct mbuf *so_temp; /* Holding area for outbound frags */
/* Plug-in support - make the socket interface overridable */
struct mbuf *so_tail;
- struct kextcb *so_ext; /* NKE hook */
- u_long so_flags; /* Flags */
-#define SOF_NOSIGPIPE 0x00000001
-#define SOF_NOADDRAVAIL 0x00000002 /* returns EADDRNOTAVAIL if src address is gone */
- void *reserved2;
- void *reserved3;
- void *reserved4;
+ struct socket_filter_entry *so_filt; /* NKE hook */
+ u_int32_t so_flags; /* Flags */
+#define SOF_NOSIGPIPE 0x1
+#define SOF_NOADDRAVAIL 0x2 /* EADDRNOTAVAIL if src addr is gone */
+#define SOF_PCBCLEARING 0x4 /* pru_disconnect done; don't call pru_detach */
+#define SOF_DEFUNCT 0x8 /* socket marked as inactive */
+#define SOF_CLOSEWAIT 0x10 /* blocked in close awaiting some events */
+#define SOF_REUSESHAREUID 0x40 /* Allows SO_REUSEADDR/SO_REUSEPORT for multiple so_uid */
+#define SOF_MULTIPAGES 0x80 /* jumbo clusters may be used for sosend */
+#define SOF_ABORTED 0x100 /* soabort was already called once on the socket */
+#define SOF_OVERFLOW 0x200 /* socket was dropped as overflow of listen queue */
+#ifdef __APPLE_API_PRIVATE
+#define SOF_NOTIFYCONFLICT 0x400 /* notify that a bind was done on a port already in use */
#endif
+#define SOF_UPCALLCLOSEWAIT 0x800 /* block on close until an upcall returns */
+#define SOF_BINDRANDOMPORT 0x1000 /* Request a randomized port number for the bind */
+#define SOF_NPX_SETOPTSHUT 0x2000 /* Non POSIX extension to allow setsockopt(2) after shut down */
+#define SOF_RECV_TRAFFIC_CLASS 0x4000 /* Receive traffic class as ancillary data */
+#define SOF_NODEFUNCT 0x8000 /* socket cannot be defunct'd */
+#define SOF_PRIVILEGED_TRAFFIC_CLASS 0x10000 /* traffic class is privileged */
+#define SOF_SUSPENDED 0x20000 /* interface output queue is suspended */
+#define SOF_INCOMP_INPROGRESS 0x40000 /* incomp socket still being processed */
+#define SOF_NOTSENT_LOWAT 0x80000 /* A different lowat on not sent data has been set */
+#define SOF_KNOTE 0x100000 /* socket is on the EV_SOCK klist */
+#define SOF_USELRO 0x200000 /* TCP must use LRO on these sockets */
+ uint32_t so_upcallusecount; /* number of upcalls in progress */
+ int so_usecount; /* refcounting of socket use */;
+ int so_retaincnt;
+ u_int32_t so_filteruse; /* usecount for the socket filters */
+ u_int32_t so_traffic_mgt_flags; /* traffic_mgt socket config */
+ thread_t so_send_filt_thread;
+ u_int32_t so_restrictions;
+
+/* for debug pruposes */
+#define SO_LCKDBG_MAX 4 /* number of debug locking Link Registers recorded */
+ void *lock_lr[SO_LCKDBG_MAX]; /* locking calling history */
+ int next_lock_lr;
+ void *unlock_lr[SO_LCKDBG_MAX]; /* unlocking caller history */
+ int next_unlock_lr;
+ void *reserved; /* reserved for future use */
+#endif /* __APPLE__ */
+
+ struct label *so_label; /* MAC label for socket */
+ struct label *so_peerlabel; /* cached MAC label for socket peer */
+ thread_t so_background_thread; /* thread that marked this socket background */
+ int so_traffic_class;
+
+ // last process to interact with this socket
+ u_int64_t last_upid;
+ pid_t last_pid;
+ struct data_stats so_tc_stats[SO_TC_STATS_MAX];
+ struct klist so_klist; /* klist for EV_SOCK events */
};
-#endif /* __APPLE_API_UNSTABLE */
+
+/* Control message accessor in mbufs */
+
+#define _MIN_NXT_CMSGHDR_PTR(cmsg) \
+ ((char *)(cmsg) + \
+ __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) + \
+ __DARWIN_ALIGN32(sizeof(struct cmsghdr)))
+
+#define M_FIRST_CMSGHDR(m) \
+ ((char *)(m) != (char *)0L && (size_t)(m)->m_len >= sizeof(struct cmsghdr) && \
+ (socklen_t)(m)->m_len >= __DARWIN_ALIGN32(((struct cmsghdr *)(void *)(m)->m_data)->cmsg_len) ?\
+ (struct cmsghdr *)(void *)(m)->m_data : \
+ (struct cmsghdr *)0L)
+
+#define M_NXT_CMSGHDR(m, cmsg) \
+ ((char *)(cmsg) == (char *)0L ? M_FIRST_CMSGHDR(m) : \
+ _MIN_NXT_CMSGHDR_PTR(cmsg) > ((char *)(m)->m_data) + (m)->m_len || \
+ _MIN_NXT_CMSGHDR_PTR(cmsg) < (char *)(m)->m_data ? \
+ (struct cmsghdr *)0L /* NULL */ : \
+ (struct cmsghdr *)(void *)((unsigned char *)(cmsg) + \
+ __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len)))
+
+#endif /* KERNEL_PRIVATE */
/*
* Socket state bits.
*/
-#define SS_NOFDREF 0x001 /* no file table ref any more */
-#define SS_ISCONNECTED 0x002 /* socket connected to a peer */
-#define SS_ISCONNECTING 0x004 /* in process of connecting to peer */
-#define SS_ISDISCONNECTING 0x008 /* in process of disconnecting */
-#define SS_CANTSENDMORE 0x010 /* can't send more data to peer */
-#define SS_CANTRCVMORE 0x020 /* can't receive more data from peer */
-#define SS_RCVATMARK 0x040 /* at mark on input */
-
-#define SS_PRIV 0x080 /* privileged for broadcast, raw... */
-#define SS_NBIO 0x100 /* non-blocking ops */
-#define SS_ASYNC 0x200 /* async i/o notify */
-#define SS_ISCONFIRMING 0x400 /* deciding to accept connection req */
-#define SS_INCOMP 0x800 /* Unaccepted, incomplete connection */
+#define SS_NOFDREF 0x0001 /* no file table ref any more */
+#define SS_ISCONNECTED 0x0002 /* socket connected to a peer */
+#define SS_ISCONNECTING 0x0004 /* in process of connecting to peer */
+#define SS_ISDISCONNECTING 0x0008 /* in process of disconnecting */
+#define SS_CANTSENDMORE 0x0010 /* can't send more data to peer */
+#define SS_CANTRCVMORE 0x0020 /* can't receive more data from peer */
+#define SS_RCVATMARK 0x0040 /* at mark on input */
+
+#define SS_PRIV 0x0080 /* privileged for broadcast, raw... */
+#define SS_NBIO 0x0100 /* non-blocking ops */
+#define SS_ASYNC 0x0200 /* async i/o notify */
+#define SS_ISCONFIRMING 0x0400 /* deciding to accept connection req */
+#define SS_INCOMP 0x0800 /* Unaccepted, incomplete connection */
#define SS_COMP 0x1000 /* unaccepted, complete connection */
#define SS_ISDISCONNECTED 0x2000 /* socket disconnected from peer */
+#define SS_DRAINING 0x4000 /* close waiting for blocked system
+ calls to drain */
+#define SS_DEFUNCT 0x8000 /* has been fully defunct'd */
+
+#if defined(__LP64__)
+#define _XSOCKET_PTR(x) u_int32_t
+#else
+#define _XSOCKET_PTR(x) x
+#endif
+
+#ifdef PRIVATE
+/* Flags returned in data field for EVFILT_SOCK events. */
+#define SOCKEV_CONNECTED 0x00000001 /* connected */
+#define SOCKEV_DISCONNECTED 0x00000002 /* disconnected */
+#endif /* PRIVATE */
+
+#pragma pack(4)
+
+struct xsockbuf {
+ u_int32_t sb_cc;
+ u_int32_t sb_hiwat;
+ u_int32_t sb_mbcnt;
+ u_int32_t sb_mbmax;
+ int32_t sb_lowat;
+ short sb_flags;
+ short sb_timeo;
+};
/*
* Externalized form of struct socket used by the sysctl(3) interface.
*/
struct xsocket {
- size_t xso_len; /* length of this structure */
- struct socket *xso_so; /* makes a convenient handle sometimes */
- short so_type;
- short so_options;
- short so_linger;
- short so_state;
- caddr_t so_pcb; /* another convenient handle */
- int xso_protocol;
- int xso_family;
- short so_qlen;
- short so_incqlen;
- short so_qlimit;
- short so_timeo;
- u_short so_error;
- pid_t so_pgid;
- u_long so_oobmark;
- struct xsockbuf {
- u_long sb_cc;
- u_long sb_hiwat;
- u_long sb_mbcnt;
- u_long sb_mbmax;
- long sb_lowat;
- short sb_flags;
- short sb_timeo;
- } so_rcv, so_snd;
- uid_t so_uid; /* XXX */
+ u_int32_t xso_len; /* length of this structure */
+ _XSOCKET_PTR(struct socket *) xso_so; /* makes a convenient handle */
+ short so_type;
+ short so_options;
+ short so_linger;
+ short so_state;
+ _XSOCKET_PTR(caddr_t) so_pcb; /* another convenient handle */
+ int xso_protocol;
+ int xso_family;
+ short so_qlen;
+ short so_incqlen;
+ short so_qlimit;
+ short so_timeo;
+ u_short so_error;
+ pid_t so_pgid;
+ u_int32_t so_oobmark;
+ struct xsockbuf so_rcv;
+ struct xsockbuf so_snd;
+ uid_t so_uid; /* XXX */
+};
+
+#if !CONFIG_EMBEDDED
+
+struct xsocket64 {
+ u_int32_t xso_len; /* length of this structure */
+ u_int64_t xso_so; /* makes a convenient handle */
+ short so_type;
+ short so_options;
+ short so_linger;
+ short so_state;
+ u_int64_t so_pcb; /* another convenient handle */
+ int xso_protocol;
+ int xso_family;
+ short so_qlen;
+ short so_incqlen;
+ short so_qlimit;
+ short so_timeo;
+ u_short so_error;
+ pid_t so_pgid;
+ u_int32_t so_oobmark;
+ struct xsockbuf so_rcv;
+ struct xsockbuf so_snd;
+ uid_t so_uid; /* XXX */
};
+#endif /* !CONFIG_EMBEDDED */
+
+#ifdef PRIVATE
+
+#define XSO_SOCKET 0x001
+#define XSO_RCVBUF 0x002
+#define XSO_SNDBUF 0x004
+#define XSO_STATS 0x008
+#define XSO_INPCB 0x010
+#define XSO_TCPCB 0x020
+
+struct xsocket_n {
+ u_int32_t xso_len; /* length of this structure */
+ u_int32_t xso_kind; /* XSO_SOCKET */
+ u_int64_t xso_so; /* makes a convenient handle */
+ short so_type;
+ u_int32_t so_options;
+ short so_linger;
+ short so_state;
+ u_int64_t so_pcb; /* another convenient handle */
+ int xso_protocol;
+ int xso_family;
+ short so_qlen;
+ short so_incqlen;
+ short so_qlimit;
+ short so_timeo;
+ u_short so_error;
+ pid_t so_pgid;
+ u_int32_t so_oobmark;
+ uid_t so_uid; /* XXX */
+};
+
+struct xsockbuf_n {
+ u_int32_t xsb_len; /* length of this structure */
+ u_int32_t xsb_kind; /* XSO_RCVBUF or XSO_SNDBUF */
+ u_int32_t sb_cc;
+ u_int32_t sb_hiwat;
+ u_int32_t sb_mbcnt;
+ u_int32_t sb_mbmax;
+ int32_t sb_lowat;
+ short sb_flags;
+ short sb_timeo;
+};
+
+struct xsockstat_n {
+ u_int32_t xst_len; /* length of this structure */
+ u_int32_t xst_kind; /* XSO_STATS */
+ struct data_stats xst_tc_stats[SO_TC_STATS_MAX];
+};
+
+#endif /* PRIVATE */
+
+#pragma pack()
+
+#ifdef KERNEL_PRIVATE
/*
* Macros for sockets and socket buffering.
*/
-#ifdef __APPLE__
-#ifdef __APPLE_API_UNSTABLE
-#define sbtoso(sb) (sb->sb_so)
+
+#define sbtoso(sb) (sb->sb_so)
/*
* Functions for sockets and socket buffering.
* These are macros on FreeBSD. On Darwin the
* implementation is in bsd/kern/uipc_socket2.c
*/
-int sb_notify __P((struct sockbuf *sb));
-long sbspace __P((struct sockbuf *sb));
-int sosendallatonce __P((struct socket *so));
-int soreadable __P((struct socket *so));
-int sowriteable __P((struct socket *so));
-void sballoc __P((struct sockbuf *sb, struct mbuf *m));
-void sbfree __P((struct sockbuf *sb, struct mbuf *m));
-int sblock __P((struct sockbuf *sb, int wf));
-void sbunlock __P((struct sockbuf *sb));
-void sorwakeup __P((struct socket * so));
-void sowwakeup __P((struct socket * so));
+
+__BEGIN_DECLS
+int sb_notify(struct sockbuf *sb);
+int sbspace(struct sockbuf *sb);
+int sosendallatonce(struct socket *so);
+int soreadable(struct socket *so);
+int sowriteable(struct socket *so);
+void sballoc(struct sockbuf *sb, struct mbuf *m);
+void sbfree(struct sockbuf *sb, struct mbuf *m);
+int sblock(struct sockbuf *sb, int wf);
+void sbunlock(struct sockbuf *sb, int locked);
+void sorwakeup(struct socket *so);
+void sowwakeup(struct socket *so);
+__END_DECLS
/*
* Socket extension mechanism: control block hooks:
* the NFDescriptor to permit selective replacement during
* operation, e.g., to disable some functions.
*/
-struct kextcb
-{ struct kextcb *e_next; /* Next kext control block */
+struct kextcb {
+ struct kextcb *e_next; /* Next kext control block */
void *e_fcb; /* Real filter control block */
struct NFDescriptor *e_nfd; /* NKE Descriptor */
/* Plug-in support - intercept functions */
struct sockif *e_soif; /* Socket functions */
struct sockutil *e_sout; /* Sockbuf utility functions */
};
-#define EXT_NULL 0x0 /* STATE: Not in use */
-#define sotokextcb(so) (so ? so->so_ext : 0)
-#endif /* __APPLE___ */
+#define EXT_NULL 0x0 /* STATE: Not in use */
+#define sotokextcb(so) (so ? so->so_ext : 0)
#ifdef KERNEL
+#include <sys/kpi_mbuf.h>
+
+/* Hints for socket event processing */
+#define SO_FILT_HINT_LOCKED 0x00000001 /* socket is already locked */
+#define SO_FILT_HINT_CONNRESET 0x00000002 /* Reset is received */
+#define SO_FILT_HINT_CANTRCVMORE 0x00000004 /* No more data to read */
+#define SO_FILT_HINT_CANTSENDMORE 0x00000008 /* Can't write more data */
+#define SO_FILT_HINT_TIMEOUT 0x00000010 /* timeout */
+#define SO_FILT_HINT_NOSRCADDR 0x00000020 /* No src address available */
+#define SO_FILT_HINT_IFDENIED 0x00000040 /* interface denied connection */
+#define SO_FILT_HINT_SUSPEND 0x00000080 /* output queue suspended */
+#define SO_FILT_HINT_RESUME 0x00000100 /* output queue resumed */
+#define SO_FILT_HINT_KEEPALIVE 0x00000200 /* TCP Keepalive received */
+
+#define SO_FILT_HINT_EV (SO_FILT_HINT_CONNRESET | \
+ SO_FILT_HINT_CANTRCVMORE | SO_FILT_HINT_CANTSENDMORE | \
+ SO_FILT_HINT_TIMEOUT | SO_FILT_HINT_NOSRCADDR | \
+ SO_FILT_HINT_IFDENIED | SO_FILT_HINT_SUSPEND | \
+ SO_FILT_HINT_RESUME | SO_FILT_HINT_KEEPALIVE)
/*
* Argument structure for sosetopt et seq. This is in the KERNEL
enum sopt_dir sopt_dir; /* is this a get or a set? */
int sopt_level; /* second arg of [gs]etsockopt */
int sopt_name; /* third arg of [gs]etsockopt */
- void *sopt_val; /* fourth arg of [gs]etsockopt */
+ user_addr_t sopt_val; /* fourth arg of [gs]etsockopt */
size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */
struct proc *sopt_p; /* calling process or null if kernel */
};
#endif
extern int maxsockets;
-extern u_long sb_max;
+extern u_int32_t sb_max;
extern int socket_zone;
extern so_gen_t so_gencnt;
+extern int socket_debug;
+extern int sosendjcl;
+extern int sosendjcl_ignore_capab;
+extern int sodefunctlog;
+extern int sothrottlelog;
+extern int somaxconn;
struct file;
struct filedesc;
struct ucred;
struct uio;
struct knote;
+struct so_tcdbg;
+
+#define SBLASTRECORDCHK(sb, s) \
+ if (socket_debug) sblastrecordchk(sb, s);
+
+#define SBLASTMBUFCHK(sb, s) \
+ if (socket_debug) sblastmbufchk(sb, s);
+
+#define SB_EMPTY_FIXUP(sb) { \
+ if ((sb)->sb_mb == NULL) { \
+ (sb)->sb_mbtail = NULL; \
+ (sb)->sb_lastrecord = NULL; \
+ } \
+}
+
+#define SB_MB_CHECK(sb) do { \
+ if (((sb)->sb_mb != NULL && \
+ (sb)->sb_cc == 0) || \
+ ((sb)->sb_mb == NULL && \
+ (sb)->sb_cc > 0)) \
+ panic("corrupt so_rcv: sb_mb %p sb_cc %d\n", \
+ (sb)->sb_mb, (sb)->sb_cc); \
+} while(0)
+
+
+#define SODEFUNCTLOG(x) do { if (sodefunctlog) printf x; } while (0)
+
+#define SOTHROTTLELOG(x) do { if (sothrottlelog) printf x; } while (0)
/*
- * File operations on sockets.
+ * For debugging traffic class behaviors
*/
-int soo_read __P((struct file *fp, struct uio *uio, struct ucred *cred,
- int flags, struct proc *p));
-int soo_write __P((struct file *fp, struct uio *uio, struct ucred *cred,
- int flags, struct proc *p));
-int soo_close __P((struct file *fp, struct proc *p));
-int soo_ioctl __P((struct file *fp, u_long cmd, caddr_t data,
- struct proc *p));
-int soo_stat __P((struct socket *so, struct stat *ub));
-int soo_select __P((struct file *fp, int which, void * wql, struct proc *p));
-int soo_kqfilter __P((struct file *fp, struct knote *kn, struct proc *p));
+#define SOTCDB_NO_DSCP 0x01 /* Do not set DSCP code in IP header */
+#define SOTCDB_NO_MTC 0x02 /* Do not set the mbuf traffic class */
+#define SOTCDB_NO_SENDTCPBG 0x04 /* Do not use background TCP CC algorithm for sender */
+#define SOTCDB_NO_LCLTST 0x08 /* Do not test for local destination for setting DSCP */
+#define SOTCDB_NO_DSCPTST 0x10 /* Overwritte any existing DSCP code */
+#define SOTCDB_NO_RECVTCPBG 0x20 /* Do not use throttling on receiver-side of TCP */
+#define SOTCDB_NO_PRIVILEGED 0x40 /* Do not set privileged traffic flag */
+extern u_int32_t sotcdb;
/*
* From uipc_socket and friends
*/
-struct sockaddr *dup_sockaddr __P((struct sockaddr *sa, int canwait));
-int getsock __P((struct filedesc *fdp, int fd, struct file **fpp));
-int sockargs __P((struct mbuf **mp, caddr_t buf, int buflen, int type));
-int getsockaddr __P((struct sockaddr **namp, caddr_t uaddr, size_t len));
-void sbappend __P((struct sockbuf *sb, struct mbuf *m));
-int sbappendaddr __P((struct sockbuf *sb, struct sockaddr *asa,
- struct mbuf *m0, struct mbuf *control));
-int sbappendcontrol __P((struct sockbuf *sb, struct mbuf *m0,
- struct mbuf *control));
-void sbappendrecord __P((struct sockbuf *sb, struct mbuf *m0));
-void sbcheck __P((struct sockbuf *sb));
-void sbcompress __P((struct sockbuf *sb, struct mbuf *m, struct mbuf *n));
-struct mbuf *
- sbcreatecontrol __P((caddr_t p, int size, int type, int level));
-void sbdrop __P((struct sockbuf *sb, int len));
-void sbdroprecord __P((struct sockbuf *sb));
-void sbflush __P((struct sockbuf *sb));
-void sbinsertoob __P((struct sockbuf *sb, struct mbuf *m0));
-void sbrelease __P((struct sockbuf *sb));
-int sbreserve __P((struct sockbuf *sb, u_long cc));
-void sbtoxsockbuf __P((struct sockbuf *sb, struct xsockbuf *xsb));
-int sbwait __P((struct sockbuf *sb));
-int sb_lock __P((struct sockbuf *sb));
-int soabort __P((struct socket *so));
-int soaccept __P((struct socket *so, struct sockaddr **nam));
-struct socket *soalloc __P((int waitok, int dom, int type));
-int sobind __P((struct socket *so, struct sockaddr *nam));
-void socantrcvmore __P((struct socket *so));
-void socantsendmore __P((struct socket *so));
-int soclose __P((struct socket *so));
-int soconnect __P((struct socket *so, struct sockaddr *nam));
-int soconnect2 __P((struct socket *so1, struct socket *so2));
-int socreate __P((int dom, struct socket **aso, int type, int proto));
-void sodealloc __P((struct socket *so));
-int sodisconnect __P((struct socket *so));
-void sofree __P((struct socket *so));
-int sogetopt __P((struct socket *so, struct sockopt *sopt));
-void sohasoutofband __P((struct socket *so));
-void soisconnected __P((struct socket *so));
-void soisconnecting __P((struct socket *so));
-void soisdisconnected __P((struct socket *so));
-void soisdisconnecting __P((struct socket *so));
-int solisten __P((struct socket *so, int backlog));
-struct socket *
- sodropablereq __P((struct socket *head));
-struct socket *
- sonewconn __P((struct socket *head, int connstatus));
-int sooptcopyin __P((struct sockopt *sopt, void *buf, size_t len,
- size_t minlen));
-int sooptcopyout __P((struct sockopt *sopt, void *buf, size_t len));
+__BEGIN_DECLS
+/* Not exported */
+extern void socketinit(void) __attribute__((section("__TEXT, initcode")));
+
+/* Exported */
+extern struct sockaddr *dup_sockaddr(struct sockaddr *sa, int canwait);
+extern int getsock(struct filedesc *fdp, int fd, struct file **fpp);
+extern int sockargs(struct mbuf **mp, user_addr_t data, int buflen, int type);
+
+extern int sbappend(struct sockbuf *sb, struct mbuf *m);
+extern int sbappendstream(struct sockbuf *sb, struct mbuf *m);
+extern int sbappendaddr(struct sockbuf *sb, struct sockaddr *asa,
+ struct mbuf *m0, struct mbuf *control, int *error_out);
+extern int sbappendcontrol(struct sockbuf *sb, struct mbuf *m0,
+ struct mbuf *control, int *error_out);
+extern int sbappendrecord(struct sockbuf *sb, struct mbuf *m0);
+extern void sbcheck(struct sockbuf *sb);
+extern void sblastmbufchk(struct sockbuf *, const char *);
+extern void sblastrecordchk(struct sockbuf *, const char *);
+extern struct mbuf *sbcreatecontrol(caddr_t p, int size, int type, int level);
+extern struct mbuf **sbcreatecontrol_mbuf(caddr_t p, int size, int type, int level, struct mbuf** m);
+extern void sbdrop(struct sockbuf *sb, int len);
+extern void sbdroprecord(struct sockbuf *sb);
+extern void sbflush(struct sockbuf *sb);
+extern int sbinsertoob(struct sockbuf *sb, struct mbuf *m0);
+extern void sbrelease(struct sockbuf *sb);
+extern int sbreserve(struct sockbuf *sb, u_int32_t cc);
+extern void sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb);
+extern int sbwait(struct sockbuf *sb);
+extern int sb_lock(struct sockbuf *sb);
+extern void sb_empty_assert(struct sockbuf *, const char *);
+
+extern int soabort(struct socket *so);
+extern int soaccept(struct socket *so, struct sockaddr **nam);
+extern int soacceptlock(struct socket *so, struct sockaddr **nam, int dolock);
+extern int soacceptfilter(struct socket *so);
+extern struct socket *soalloc(int waitok, int dom, int type);
+extern int sobind(struct socket *so, struct sockaddr *nam);
+extern void socantrcvmore(struct socket *so);
+extern void socantsendmore(struct socket *so);
+extern int soclose(struct socket *so);
+extern int soconnect(struct socket *so, struct sockaddr *nam);
+extern int soconnectlock(struct socket *so, struct sockaddr *nam, int dolock);
+extern int soconnect2(struct socket *so1, struct socket *so2);
+extern int socreate(int dom, struct socket **aso, int type, int proto);
+extern void sodealloc(struct socket *so);
+extern int sodisconnect(struct socket *so);
+extern int sodisconnectlocked(struct socket *so);
+extern void sofree(struct socket *so);
+extern void soreference(struct socket *so);
+extern void sodereference(struct socket *so);
+extern void somultipages(struct socket *, boolean_t);
+extern int sosetdefunct(struct proc *, struct socket *, int level, boolean_t);
+extern int sodefunct(struct proc *, struct socket *, int level);
+extern int sogetopt(struct socket *so, struct sockopt *sopt);
+extern void sohasoutofband(struct socket *so);
+extern void soisconnected(struct socket *so);
+extern void soisconnecting(struct socket *so);
+extern void soisdisconnected(struct socket *so);
+extern void sodisconnectwakeup(struct socket *so);
+extern void soisdisconnecting(struct socket *so);
+extern int soisthrottled(struct socket *so);
+extern int soisprivilegedtraffic(struct socket *so);
+extern int solisten(struct socket *so, int backlog);
+extern struct socket *sodropablereq(struct socket *head);
+extern struct socket *sonewconn(struct socket *head, int connstatus,
+ const struct sockaddr *from);
+extern int sooptcopyin(struct sockopt *sopt, void *data, size_t len,
+ size_t minlen);
+extern int sooptcopyout(struct sockopt *sopt, void *data, size_t len);
+extern int socket_lock(struct socket *so, int refcount);
+extern int socket_unlock(struct socket *so, int refcount);
+extern void sofreelastref(struct socket *, int);
+extern int sogetaddr_locked(struct socket *, struct sockaddr **, int);
+extern const char *solockhistory_nr(struct socket *);
+extern void soevent(struct socket *so, long hint);
+extern void get_sockev_state(struct socket *, u_int32_t *);
+
+#ifdef BSD_KERNEL_PRIVATE
+/* Service class flags used for setting service class on a packet */
+#define PKT_SCF_IPV6 0x00000001 /* IPv6 packet */
+#define PKT_SCF_TCP_ACK 0x00000002 /* Pure TCP ACK */
+
+extern void set_packet_service_class(struct mbuf *, struct socket *,
+ mbuf_svc_class_t, u_int32_t);
+extern void so_tc_update_stats(struct mbuf *, struct socket *, mbuf_svc_class_t );
+extern mbuf_svc_class_t mbuf_service_class_from_control(struct mbuf *);
+extern mbuf_svc_class_t so_tc2msc(int);
+extern int so_svc2tc(mbuf_svc_class_t);
+
+extern void set_tcp_stream_priority(struct socket *so);
+extern int so_set_traffic_class(struct socket *, int);
+extern void so_set_default_traffic_class(struct socket *);
+extern int so_set_opportunistic(struct socket *, int);
+extern int so_get_opportunistic(struct socket *);
+extern int so_set_recv_anyif(struct socket *, int);
+extern int so_get_recv_anyif(struct socket *);
+extern void socket_tclass_init(void);
+extern int so_set_tcdbg(struct socket *, struct so_tcdbg *);
+extern int sogetopt_tcdbg(struct socket *, struct sockopt *);
+extern void so_recv_data_stat(struct socket *, struct mbuf *, size_t);
+extern int so_wait_for_if_feedback(struct socket *);
+#endif /* BSD_KERNEL_PRIVATE */
/*
* XXX; prepare mbuf for (__FreeBSD__ < 3) routines.
* Used primarily in IPSec and IPv6 code.
*/
-int soopt_getm __P((struct sockopt *sopt, struct mbuf **mp));
-int soopt_mcopyin __P((struct sockopt *sopt, struct mbuf *m));
-int soopt_mcopyout __P((struct sockopt *sopt, struct mbuf *m));
-
-int sopoll __P((struct socket *so, int events, struct ucred *cred, void *wql));
-int soreceive __P((struct socket *so, struct sockaddr **paddr,
- struct uio *uio, struct mbuf **mp0,
- struct mbuf **controlp, int *flagsp));
-int soreserve __P((struct socket *so, u_long sndcc, u_long rcvcc));
-void sorflush __P((struct socket *so));
-int sosend __P((struct socket *so, struct sockaddr *addr, struct uio *uio,
- struct mbuf *top, struct mbuf *control, int flags));
-
-int sosetopt __P((struct socket *so, struct sockopt *sopt));
-int soshutdown __P((struct socket *so, int how));
-void sotoxsocket __P((struct socket *so, struct xsocket *xso));
-void sowakeup __P((struct socket *so, struct sockbuf *sb));
+extern int soopt_getm(struct sockopt *sopt, struct mbuf **mp);
+extern int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m);
+extern int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
+
+extern int sopoll(struct socket *so, int events, struct ucred *cred, void *wql);
+extern int soreceive(struct socket *so, struct sockaddr **paddr,
+ struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp);
+extern int soreserve(struct socket *so, u_int32_t sndcc, u_int32_t rcvcc);
+extern void sorflush(struct socket *so);
+extern int sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
+ struct mbuf *top, struct mbuf *control, int flags);
+
+extern int sosetopt(struct socket *so, struct sockopt *sopt);
+extern int soshutdown(struct socket *so, int how);
+extern int soshutdownlock(struct socket *so, int how);
+extern void sotoxsocket(struct socket *so, struct xsocket *xso);
+#if !CONFIG_EMBEDDED
+extern void sotoxsocket64(struct socket *so, struct xsocket64 *xso);
+#endif
+extern void sbwakeup(struct sockbuf *sb);
+extern void sowakeup(struct socket *so, struct sockbuf *sb);
+extern int soioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p);
#ifndef __APPLE__
/* accept filter functions */
-int accept_filt_add __P((struct accept_filter *filt));
-int accept_filt_del __P((char *name));
-struct accept_filter * accept_filt_get __P((char *name));
+extern int accept_filt_add(struct accept_filter *filt);
+extern int accept_filt_del(char *name);
+extern struct accept_filter *accept_filt_get(char *name);
#ifdef ACCEPT_FILTER_MOD
-int accept_filt_generic_mod_event __P((module_t mod, int event, void *data));
+extern int accept_filt_generic_mod_event(module_t mod, int event, void *data);
SYSCTL_DECL(_net_inet_accf);
#endif /* ACCEPT_FILTER_MOD */
#endif /* !defined(__APPLE__) */
+__END_DECLS
+
#endif /* KERNEL */
-#endif /* __APPLE_API_UNSTABLE */
+#endif /* KERNEL_PRIVATE */
#endif /* !_SYS_SOCKETVAR_H_ */
projects / apple / xnu.git / blobdiff