#include <sys/cdefs.h>
#include "opt_param.h"
#include <sys/param.h>
#include <sys/aio.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mbuf.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/protosw.h>
#include <sys/resourcevar.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sx.h>
#include <sys/sysctl.h>

Include dependency graph for uipc_sockbuf.c:

Macros
#define	SBLINKRECORD(sb, m0)

Functions
	__FBSDID ("$BSDSUniX$")

static void	sbdrop_internal (struct sockbuf *sb, int len)

static void	sbflush_internal (struct sockbuf *sb)

void	socantsendmore_locked (struct socket *so)

void	socantsendmore (struct socket *so)

void	socantrcvmore_locked (struct socket *so)

void	socantrcvmore (struct socket *so)

int	sbwait (struct sockbuf *sb)

int	sblock (struct sockbuf *sb, int flags)

void	sbunlock (struct sockbuf *sb)

void	sowakeup (struct socket so, struct sockbuf sb)

int	soreserve (struct socket *so, u_long sndcc, u_long rcvcc)

static int	sysctl_handle_sb_max (SYSCTL_HANDLER_ARGS)

int	sbreserve_locked (struct sockbuf sb, u_long cc, struct socket so, struct thread *td)

int	sbreserve (struct sockbuf sb, u_long cc, struct socket so, struct thread *td)

void	sbrelease_internal (struct sockbuf sb, struct socket so)

void	sbrelease_locked (struct sockbuf sb, struct socket so)

void	sbrelease (struct sockbuf sb, struct socket so)

void	sbdestroy (struct sockbuf sb, struct socket so)

void	sbappend_locked (struct sockbuf sb, struct mbuf m)

void	sbappend (struct sockbuf sb, struct mbuf m)

void	sbappendstream_locked (struct sockbuf sb, struct mbuf m)

void	sbappendstream (struct sockbuf sb, struct mbuf m)

void	sbappendrecord_locked (struct sockbuf sb, struct mbuf m0)

void	sbappendrecord (struct sockbuf sb, struct mbuf m0)

static int	sbappendaddr_locked_internal (struct sockbuf sb, const struct sockaddr asa, struct mbuf m0, struct mbuf control, struct mbuf *ctrl_last)

int	sbappendaddr_locked (struct sockbuf sb, const struct sockaddr asa, struct mbuf m0, struct mbuf control)

int	sbappendaddr_nospacecheck_locked (struct sockbuf sb, const struct sockaddr asa, struct mbuf m0, struct mbuf control)

int	sbappendaddr (struct sockbuf sb, const struct sockaddr asa, struct mbuf m0, struct mbuf control)

int	sbappendcontrol_locked (struct sockbuf sb, struct mbuf m0, struct mbuf *control)

int	sbappendcontrol (struct sockbuf sb, struct mbuf m0, struct mbuf *control)

void	sbcompress (struct sockbuf sb, struct mbuf m, struct mbuf *n)

void	sbflush_locked (struct sockbuf *sb)

void	sbflush (struct sockbuf *sb)

void	sbdrop_locked (struct sockbuf *sb, int len)

void	sbdrop (struct sockbuf *sb, int len)

struct mbuf *	sbsndptr (struct sockbuf sb, u_int off, u_int len, u_int moff)

struct mbuf *	sbsndmbuf (struct sockbuf sb, u_int off, u_int moff)

void	sbdroprecord_locked (struct sockbuf *sb)

void	sbdroprecord (struct sockbuf *sb)

struct mbuf *	sbcreatecontrol (caddr_t p, int size, int type, int level)

void	sbtoxsockbuf (struct sockbuf sb, struct xsockbuf xsb)

	SYSCTL_INT (_kern, KERN_DUMMY, dummy, CTLFLAG_RW,&dummy, 0,"")

	SYSCTL_OID (_kern_ipc, KIPC_MAXSOCKBUF, maxsockbuf, CTLTYPE_ULONG\|CTLFLAG_RW,&sb_max, 0, sysctl_handle_sb_max,"LU","Maximum socket buffer size")

	SYSCTL_ULONG (_kern_ipc, KIPC_SOCKBUF_WASTE, sockbuf_waste_factor, CTLFLAG_RW,&sb_efficiency, 0,"")

Variables
void(*	aio_swake )(struct socket , struct sockbuf )

u_long	sb_max = SB_MAX

u_long	sb_max_adj

static u_long	sb_efficiency = 8

static int	dummy

Macro Definition Documentation

#define SBLINKRECORD	(	sb,
		m0
	)

Value:

do {                                    \
        SOCKBUF_LOCK_ASSERT(sb);                                        \
        if ((sb)->sb_lastrecord != NULL)                                \
                (sb)->sb_lastrecord->m_nextpkt = (m0);                  \
        else                                                            \
                (sb)->sb_mb = (m0);                                     \
        (sb)->sb_lastrecord = (m0);                                     \
} while (/*CONSTCOND*/0)

Definition at line 442 of file uipc_sockbuf.c.

Referenced by sbappendaddr_locked_internal(), sbappendcontrol_locked(), and sbappendrecord_locked().

Function Documentation

__FBSDID ( "$BSDSUniX$" )

void sbappend	(	struct sockbuf *	sb,
		struct mbuf *	m
	)

Definition at line 508 of file uipc_sockbuf.c.

References sbappend_locked().

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void sbappend_locked	(	struct sockbuf *	sb,
		struct mbuf *	m
	)

Definition at line 457 of file uipc_sockbuf.c.

References sbappendrecord_locked(), and sbcompress().

Referenced by sbappend(), and uipc_send().

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int sbappendaddr	(	struct sockbuf *	sb,
		const struct sockaddr *	asa,
		struct mbuf *	m0,
		struct mbuf *	control
	)

Definition at line 704 of file uipc_sockbuf.c.

References sbappendaddr_locked().

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int sbappendaddr_locked	(	struct sockbuf *	sb,
		const struct sockaddr *	asa,
		struct mbuf *	m0,
		struct mbuf *	control
	)

Definition at line 660 of file uipc_sockbuf.c.

References m_length(), panic(), and sbappendaddr_locked_internal().

Referenced by sbappendaddr(), and uipc_send().

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static int sbappendaddr_locked_internal	(	struct sockbuf *	sb,
		const struct sockaddr *	asa,
		struct mbuf *	m0,
		struct mbuf *	control,
		struct mbuf *	ctrl_last
	)

static

Definition at line 622 of file uipc_sockbuf.c.

References SBLINKRECORD.

Referenced by sbappendaddr_locked(), and sbappendaddr_nospacecheck_locked().

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int sbappendaddr_nospacecheck_locked	(	struct sockbuf *	sb,
		const struct sockaddr *	asa,
		struct mbuf *	m0,
		struct mbuf *	control
	)

Definition at line 686 of file uipc_sockbuf.c.

References sbappendaddr_locked_internal().

Referenced by uipc_send().

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int sbappendcontrol	(	struct sockbuf *	sb,
		struct mbuf *	m0,
		struct mbuf *	control
	)

Definition at line 748 of file uipc_sockbuf.c.

References sbappendcontrol_locked().

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int sbappendcontrol_locked	(	struct sockbuf *	sb,
		struct mbuf *	m0,
		struct mbuf *	control
	)

Definition at line 716 of file uipc_sockbuf.c.

References m_length(), panic(), and SBLINKRECORD.

Referenced by sbappendcontrol(), and uipc_send().

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void sbappendrecord	(	struct sockbuf *	sb,
		struct mbuf *	m0
	)

Definition at line 612 of file uipc_sockbuf.c.

References sbappendrecord_locked().

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void sbappendrecord_locked	(	struct sockbuf *	sb,
		struct mbuf *	m0
	)

Definition at line 582 of file uipc_sockbuf.c.

References sbcompress(), and SBLINKRECORD.

Referenced by sbappend_locked(), and sbappendrecord().

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void sbappendstream	(	struct sockbuf *	sb,
		struct mbuf *	m
	)

Definition at line 543 of file uipc_sockbuf.c.

References sbappendstream_locked().

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void sbappendstream_locked	(	struct sockbuf *	sb,
		struct mbuf *	m
	)

Definition at line 522 of file uipc_sockbuf.c.

References sbcompress().

Referenced by sbappendstream().

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void sbcompress	(	struct sockbuf *	sb,
		struct mbuf *	m,
		struct mbuf *	n
	)

Definition at line 779 of file uipc_sockbuf.c.

Referenced by sbappend_locked(), sbappendrecord_locked(), and sbappendstream_locked().

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struct mbuf* sbcreatecontrol	(	caddr_t	p,
		int	size,
		int	type,
		int	level
	)

Definition at line 1062 of file uipc_sockbuf.c.

References level, and type.

Referenced by unp_addsockcred(), unp_externalize(), and unp_internalize().

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void sbdestroy	(	struct sockbuf *	sb,
		struct socket *	so
	)

Definition at line 364 of file uipc_sockbuf.c.

References sbrelease_internal().

Referenced by sofree().

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void sbdrop	(	struct sockbuf *	sb,
		int	len
	)

Definition at line 936 of file uipc_sockbuf.c.

References sbdrop_locked().

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static void sbdrop_internal	(	struct sockbuf *	sb,
		int	len
	)

static

Definition at line 873 of file uipc_sockbuf.c.

References panic().

Referenced by sbdrop_locked(), and sbflush_internal().

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void sbdrop_locked	(	struct sockbuf *	sb,
		int	len
	)

Definition at line 927 of file uipc_sockbuf.c.

References sbdrop_internal().

Referenced by sbdrop(), soisdisconnected(), and soreceive_stream().

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void sbdroprecord ( struct sockbuf * sb )

Definition at line 1049 of file uipc_sockbuf.c.

References sbdroprecord_locked().

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void sbdroprecord_locked ( struct sockbuf * sb )

Definition at line 1027 of file uipc_sockbuf.c.

Referenced by sbdroprecord(), and soreceive_generic().

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void sbflush ( struct sockbuf * sb )

Definition at line 861 of file uipc_sockbuf.c.

References sbflush_locked().

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static void sbflush_internal ( struct sockbuf * sb )

static

Definition at line 835 of file uipc_sockbuf.c.

References panic(), and sbdrop_internal().

Referenced by sbflush_locked(), and sbrelease_internal().

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void sbflush_locked ( struct sockbuf * sb )

Definition at line 853 of file uipc_sockbuf.c.

References sbflush_internal().

Referenced by sbflush().

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int sblock	(	struct sockbuf *	sb,
		int	flags
	)

Definition at line 136 of file uipc_sockbuf.c.

Referenced by kern_sendfile(), soreceive_generic(), soreceive_stream(), sorflush(), and sosend_generic().

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void sbrelease	(	struct sockbuf *	sb,
		struct socket *	so
	)

Definition at line 355 of file uipc_sockbuf.c.

References sbrelease_locked().

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void sbrelease_internal	(	struct sockbuf *	sb,
		struct socket *	so
	)

Definition at line 336 of file uipc_sockbuf.c.

References chgsbsize(), and sbflush_internal().

Referenced by sbdestroy(), sbrelease_locked(), and sorflush().

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void sbrelease_locked	(	struct sockbuf *	sb,
		struct socket *	so
	)

Definition at line 346 of file uipc_sockbuf.c.

References sbrelease_internal().

Referenced by sbrelease(), and soreserve().

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int sbreserve	(	struct sockbuf *	sb,
		u_long	cc,
		struct socket *	so,
		struct thread *	td
	)

Definition at line 321 of file uipc_sockbuf.c.

References sbreserve_locked().

Referenced by sosetopt().

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int sbreserve_locked	(	struct sockbuf *	sb,
		u_long	cc,
		struct socket *	so,
		struct thread *	td
	)

Definition at line 289 of file uipc_sockbuf.c.

References chgsbsize(), lim_cur(), sb_max, and sb_max_adj.

Referenced by sbreserve(), and soreserve().

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struct mbuf* sbsndmbuf	(	struct sockbuf *	sb,
		u_int	off,
		u_int *	moff
	)

Definition at line 996 of file uipc_sockbuf.c.

struct mbuf* sbsndptr	(	struct sockbuf *	sb,
		u_int	off,
		u_int	len,
		u_int *	moff
	)

Definition at line 949 of file uipc_sockbuf.c.

References panic().

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void sbtoxsockbuf	(	struct sockbuf *	sb,
		struct xsockbuf *	xsb
	)

Definition at line 1101 of file uipc_sockbuf.c.

Referenced by sotoxsocket().

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void sbunlock ( struct sockbuf * sb )

Definition at line 157 of file uipc_sockbuf.c.

Referenced by kern_sendfile(), soreceive_generic(), soreceive_stream(), sorflush(), and sosend_generic().

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int sbwait ( struct sockbuf * sb )

Definition at line 124 of file uipc_sockbuf.c.

Referenced by kern_sendfile(), soreceive_dgram(), soreceive_generic(), soreceive_stream(), and sosend_generic().

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void socantrcvmore ( struct socket * so )

Definition at line 112 of file uipc_sockbuf.c.

References socantrcvmore_locked().

Referenced by sorflush(), and unp_shutdown().

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void socantrcvmore_locked ( struct socket * so )

Definition at line 101 of file uipc_sockbuf.c.

Referenced by socantrcvmore().

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void socantsendmore ( struct socket * so )

Definition at line 92 of file uipc_sockbuf.c.

References socantsendmore_locked().

Referenced by uipc_send(), and uipc_shutdown().

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void socantsendmore_locked ( struct socket * so )

Definition at line 81 of file uipc_sockbuf.c.

Referenced by socantsendmore().

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int soreserve	(	struct socket *	so,
		u_long	sndcc,
		u_long	rcvcc
	)

Definition at line 241 of file uipc_sockbuf.c.

References sbrelease_locked(), and sbreserve_locked().

Referenced by sonewconn(), and uipc_attach().

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void sowakeup	(	struct socket *	so,
		struct sockbuf *	sb
	)

Definition at line 176 of file uipc_sockbuf.c.

References aio_swake, pgsigio(), selwakeuppri(), soisconnected(), soupcall_clear(), and wakeup().

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static int sysctl_handle_sb_max ( SYSCTL_HANDLER_ARGS )

static

Definition at line 269 of file uipc_sockbuf.c.

References sb_max, sb_max_adj, and sysctl_handle_long().

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SYSCTL_INT	(	_kern	,
		KERN_DUMMY	,
		dummy	,
		CTLFLAG_RW	,
		&	dummy,
		0	,
		""
	)

SYSCTL_OID	(	_kern_ipc	,
		KIPC_MAXSOCKBUF	,
		maxsockbuf	,
		CTLTYPE_ULONG\|	CTLFLAG_RW,
		&	sb_max,
		0	,
		sysctl_handle_sb_max	,
		"LU"	,
		"Maximum socket buffer size"
	)

SYSCTL_ULONG	(	_kern_ipc	,
		KIPC_SOCKBUF_WASTE	,
		sockbuf_waste_factor	,
		CTLFLAG_RW	,
		&	sb_efficiency,
		0	,
		""
	)

Variable Documentation

void(* aio_swake) (struct socket *, struct sockbuf *)

Definition at line 56 of file uipc_sockbuf.c.

Referenced by aio_onceonly(), aio_unload(), and sowakeup().

int dummy

static

Definition at line 1116 of file uipc_sockbuf.c.

Referenced by buf_splay(), and lookup().

u_long sb_efficiency = 8

static

Definition at line 66 of file uipc_sockbuf.c.

u_long sb_max = SB_MAX

Definition at line 62 of file uipc_sockbuf.c.

Referenced by sbreserve_locked(), and sysctl_handle_sb_max().

u_long sb_max_adj

Initial value:

=

(quad_t)SB_MAX * MCLBYTES / (MSIZE + MCLBYTES)

Definition at line 63 of file uipc_sockbuf.c.

Referenced by sbreserve_locked(), and sysctl_handle_sb_max().

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation