uipc_socket.c File Reference

#include <sys/cdefs.h>
#include "opt_inet.h"
#include "opt_inet6.h"
#include "opt_zero.h"
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/fcntl.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/mac.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/mutex.h>
#include <sys/domain.h>
#include <sys/file.h>
#include <sys/kernel.h>
#include <sys/event.h>
#include <sys/eventhandler.h>
#include <sys/poll.h>
#include <sys/proc.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/resourcevar.h>
#include <net/route.h>
#include <sys/signalvar.h>
#include <sys/stat.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <sys/jail.h>
#include <sys/syslog.h>
#include <netinet/in.h>
#include <net/vnet.h>
#include <security/mac/mac_framework.h>
#include <vm/uma.h>

Include dependency graph for uipc_socket.c:

Go to the source code of this file.

Macros
#define	VNET_SO_ASSERT(so)
#define	SBLOCKWAIT(f)   (((f) & MSG_DONTWAIT) ? 0 : SBL_WAIT)

Functions
	__FBSDID ("$BSDSUniX$")
static int	soreceive_rcvoob (struct socket *so, struct uio *uio, int flags)
static void	filt_sordetach (struct knote *kn)
static int	filt_soread (struct knote *kn, long hint)
static void	filt_sowdetach (struct knote *kn)
static int	filt_sowrite (struct knote *kn, long hint)
static int	filt_solisten (struct knote *kn, long hint)
	MALLOC_DEFINE (M_SONAME,"soname","socket name")
	MALLOC_DEFINE (M_PCB,"pcb","protocol control block")
static int	sysctl_somaxconn (SYSCTL_HANDLER_ARGS)
	SYSCTL_PROC (_kern_ipc, KIPC_SOMAXCONN, somaxconn, CTLTYPE_UINT|CTLFLAG_RW, 0, sizeof(int), sysctl_somaxconn,"I","Maximum listen socket pending connection accept queue size")
	SYSCTL_INT (_kern_ipc, OID_AUTO, numopensockets, CTLFLAG_RD,&numopensockets, 0,"Number of open sockets")
	MTX_SYSINIT (accept_mtx,&accept_mtx,"accept", MTX_DEF)
	MTX_SYSINIT (so_global_mtx,&so_global_mtx,"so_glabel", MTX_DEF)
	SYSCTL_NODE (_kern, KERN_IPC, ipc, CTLFLAG_RW, 0,"IPC")
static void	socket_zone_change (void *tag)
static void	socket_init (void *tag)
	SYSINIT (socket, SI_SUB_PROTO_DOMAININIT, SI_ORDER_ANY, socket_init, NULL)
static void	init_maxsockets (void *ignored)
	SYSINIT (param, SI_SUB_TUNABLES, SI_ORDER_ANY, init_maxsockets, NULL)
static int	sysctl_maxsockets (SYSCTL_HANDLER_ARGS)
	SYSCTL_PROC (_kern_ipc, OID_AUTO, maxsockets, CTLTYPE_INT|CTLFLAG_RW,&maxsockets, 0, sysctl_maxsockets,"IU","Maximum number of sockets avaliable")
static struct socket *	soalloc (struct vnet *vnet)
static void	sodealloc (struct socket *so)
int	socreate (int dom, struct socket **aso, int type, int proto, struct ucred *cred, struct thread *td)
struct socket *	sonewconn (struct socket *head, int connstatus)
int	sobind (struct socket *so, struct sockaddr *nam, struct thread *td)
int	solisten (struct socket *so, int backlog, struct thread *td)
int	solisten_proto_check (struct socket *so)
void	solisten_proto (struct socket *so, int backlog)
void	sofree (struct socket *so)
int	soclose (struct socket *so)
void	soabort (struct socket *so)
int	soaccept (struct socket *so, struct sockaddr **nam)
int	soconnect (struct socket *so, struct sockaddr *nam, struct thread *td)
int	soconnect2 (struct socket *so1, struct socket *so2)
int	sodisconnect (struct socket *so)
int	sosend_dgram (struct socket *so, struct sockaddr *addr, struct uio *uio, struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
int	sosend_generic (struct socket *so, struct sockaddr *addr, struct uio *uio, struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
int	sosend (struct socket *so, struct sockaddr *addr, struct uio *uio, struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
static __inline void	sockbuf_pushsync (struct sockbuf *sb, struct mbuf *nextrecord)
int	soreceive_generic (struct socket *so, struct sockaddr **psa, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
int	soreceive_stream (struct socket *so, struct sockaddr **psa, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
int	soreceive_dgram (struct socket *so, struct sockaddr **psa, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
int	soreceive (struct socket *so, struct sockaddr **psa, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
int	soshutdown (struct socket *so, int how)
void	sorflush (struct socket *so)
int	sooptcopyin (struct sockopt *sopt, void *buf, size_t len, size_t minlen)
int	so_setsockopt (struct socket *so, int level, int optname, void *optval, size_t optlen)
int	sosetopt (struct socket *so, struct sockopt *sopt)
int	sooptcopyout (struct sockopt *sopt, const void *buf, size_t len)
int	sogetopt (struct socket *so, struct sockopt *sopt)
int	soopt_getm (struct sockopt *sopt, struct mbuf **mp)
int	soopt_mcopyin (struct sockopt *sopt, struct mbuf *m)
int	soopt_mcopyout (struct sockopt *sopt, struct mbuf *m)
void	sohasoutofband (struct socket *so)
int	sopoll (struct socket *so, int events, struct ucred *active_cred, struct thread *td)
int	sopoll_generic (struct socket *so, int events, struct ucred *active_cred, struct thread *td)
int	soo_kqfilter (struct file *fp, struct knote *kn)
int	pru_accept_notsupp (struct socket *so, struct sockaddr **nam)
int	pru_attach_notsupp (struct socket *so, int proto, struct thread *td)
int	pru_bind_notsupp (struct socket *so, struct sockaddr *nam, struct thread *td)
int	pru_connect_notsupp (struct socket *so, struct sockaddr *nam, struct thread *td)
int	pru_connect2_notsupp (struct socket *so1, struct socket *so2)
int	pru_control_notsupp (struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp, struct thread *td)
int	pru_disconnect_notsupp (struct socket *so)
int	pru_listen_notsupp (struct socket *so, int backlog, struct thread *td)
int	pru_peeraddr_notsupp (struct socket *so, struct sockaddr **nam)
int	pru_rcvd_notsupp (struct socket *so, int flags)
int	pru_rcvoob_notsupp (struct socket *so, struct mbuf *m, int flags)
int	pru_send_notsupp (struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, struct mbuf *control, struct thread *td)
int	pru_sense_null (struct socket *so, struct stat *sb)
int	pru_shutdown_notsupp (struct socket *so)
int	pru_sockaddr_notsupp (struct socket *so, struct sockaddr **nam)
int	pru_sosend_notsupp (struct socket *so, struct sockaddr *addr, struct uio *uio, struct mbuf *top, struct mbuf *control, int flags, struct thread *td)
int	pru_soreceive_notsupp (struct socket *so, struct sockaddr **paddr, struct uio *uio, struct mbuf **mp0, struct mbuf **controlp, int *flagsp)
int	pru_sopoll_notsupp (struct socket *so, int events, struct ucred *cred, struct thread *td)
int	socheckuid (struct socket *so, uid_t uid)
void	soisconnecting (struct socket *so)
void	soisconnected (struct socket *so)
void	soisdisconnecting (struct socket *so)
void	soisdisconnected (struct socket *so)
struct sockaddr *	sodupsockaddr (const struct sockaddr *sa, int mflags)
void	soupcall_set (struct socket *so, int which, int(*func)(struct socket *, void *, int), void *arg)
void	soupcall_clear (struct socket *so, int which)
void	sotoxsocket (struct socket *so, struct xsocket *xso)
void	so_listeners_apply_all (struct socket *so, void(*func)(struct socket *, void *), void *arg)
struct sockbuf *	so_sockbuf_rcv (struct socket *so)
struct sockbuf *	so_sockbuf_snd (struct socket *so)
int	so_state_get (const struct socket *so)
void	so_state_set (struct socket *so, int val)
int	so_options_get (const struct socket *so)
void	so_options_set (struct socket *so, int val)
int	so_error_get (const struct socket *so)
void	so_error_set (struct socket *so, int val)
int	so_linger_get (const struct socket *so)
void	so_linger_set (struct socket *so, int val)
struct protosw *	so_protosw_get (const struct socket *so)
void	so_protosw_set (struct socket *so, struct protosw *val)
void	so_sorwakeup (struct socket *so)
void	so_sowwakeup (struct socket *so)
void	so_sorwakeup_locked (struct socket *so)
void	so_sowwakeup_locked (struct socket *so)
void	so_lock (struct socket *so)
void	so_unlock (struct socket *so)

Variables
static struct filterops	solisten_filtops
static struct filterops	soread_filtops
static struct filterops	sowrite_filtops
so_gen_t	so_gencnt
static int	somaxconn = SOMAXCONN
static int	numopensockets
struct mtx	accept_mtx
static struct mtx	so_global_mtx
uma_zone_t	socket_zone
int	maxsockets

Macro Definition Documentation

#define SBLOCKWAIT

(

f

)

(((f) & MSG_DONTWAIT) ? 0 : SBL_WAIT)

Definition at line 1054 of file uipc_socket.c.

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

#define VNET_SO_ASSERT

(

so

)

Value:

VNET_ASSERT(curvnet != NULL,                                    \
            ("%s:%d curvnet is NULL, so=%p", __func__, __LINE__, (so)));

Definition at line 183 of file uipc_socket.c.

Referenced by soabort(), sodisconnect(), sofree(), sonewconn(), soreceive_generic(), soreceive_rcvoob(), soreceive_stream(), sorflush(), sosend_dgram(), and sosend_generic().

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

static int filt_solisten ( struct knote *  kn, long  hint  )

static

Definition at line 3325 of file uipc_socket.c.

static void filt_sordetach ( struct knote *  kn )

static

Definition at line 3254 of file uipc_socket.c.

References knlist_empty(), and knlist_remove().

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static int filt_soread ( struct knote *  kn, long  hint  )

static

Definition at line 3267 of file uipc_socket.c.

static void filt_sowdetach ( struct knote *  kn )

static

Definition at line 3288 of file uipc_socket.c.

References knlist_empty(), and knlist_remove().

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static int filt_sowrite ( struct knote *  kn, long  hint  )

static

Definition at line 3301 of file uipc_socket.c.

static void init_maxsockets ( void *  ignored )

static

Definition at line 281 of file uipc_socket.c.

References maxfiles.

MALLOC_DEFINE	(	M_SONAME	,
		"soname"	,
		"socket name"
	)

MALLOC_DEFINE	(	M_PCB	,
		"pcb"	,
		"protocol control block"
	)

MTX_SYSINIT	(	accept_mtx	,
		&	accept_mtx,
		"accept"	,
		MTX_DEF
	)

MTX_SYSINIT	(	so_global_mtx	,
		&	so_global_mtx,
		"so_glabel"	,
		MTX_DEF
	)

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

Definition at line 3118 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_attach_notsupp	(	struct socket *	so,
		int	proto,
		struct thread *	td
	)

Definition at line 3125 of file uipc_socket.c.

Referenced by socreate().

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int pru_bind_notsupp	(	struct socket *	so,
		struct sockaddr *	nam,
		struct thread *	td
	)

Definition at line 3132 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_connect2_notsupp	(	struct socket *	so1,
		struct socket *	so2
	)

Definition at line 3146 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_connect_notsupp	(	struct socket *	so,
		struct sockaddr *	nam,
		struct thread *	td
	)

Definition at line 3139 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_control_notsupp	(	struct socket *	so,
		u_long	cmd,
		caddr_t	data,
		struct ifnet *	ifp,
		struct thread *	td
	)

Definition at line 3153 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_disconnect_notsupp

(

struct socket *

so

)

Definition at line 3161 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_listen_notsupp	(	struct socket *	so,
		int	backlog,
		struct thread *	td
	)

Definition at line 3168 of file uipc_socket.c.

Referenced by protosw_init().

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

Definition at line 3175 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_rcvd_notsupp	(	struct socket *	so,
		int	flags
	)

Definition at line 3182 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_rcvoob_notsupp	(	struct socket *	so,
		struct mbuf *	m,
		int	flags
	)

Definition at line 3189 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_send_notsupp	(	struct socket *	so,
		int	flags,
		struct mbuf *	m,
		struct sockaddr *	addr,
		struct mbuf *	control,
		struct thread *	td
	)

Definition at line 3196 of file uipc_socket.c.

int pru_sense_null	(	struct socket *	so,
		struct stat *	sb
	)

Definition at line 3208 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_shutdown_notsupp

(

struct socket *

so

)

Definition at line 3216 of file uipc_socket.c.

Referenced by protosw_init().

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

Definition at line 3223 of file uipc_socket.c.

Referenced by protosw_init().

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int pru_sopoll_notsupp	(	struct socket *	so,
		int	events,
		struct ucred *	cred,
		struct thread *	td
	)

Definition at line 3246 of file uipc_socket.c.

int pru_soreceive_notsupp	(	struct socket *	so,
		struct sockaddr **	paddr,
		struct uio *	uio,
		struct mbuf **	mp0,
		struct mbuf **	controlp,
		int *	flagsp
	)

Definition at line 3238 of file uipc_socket.c.

int pru_sosend_notsupp	(	struct socket *	so,
		struct sockaddr *	addr,
		struct uio *	uio,
		struct mbuf *	top,
		struct mbuf *	control,
		int	flags,
		struct thread *	td
	)

Definition at line 3230 of file uipc_socket.c.

int so_error_get

(

const struct socket *

so

)

Definition at line 3628 of file uipc_socket.c.

void so_error_set	(	struct socket *	so,
		int	val
	)

Definition at line 3635 of file uipc_socket.c.

int so_linger_get

(

const struct socket *

so

)

Definition at line 3642 of file uipc_socket.c.

void so_linger_set	(	struct socket *	so,
		int	val
	)

Definition at line 3649 of file uipc_socket.c.

void so_listeners_apply_all	(	struct socket *	so,
		void(*)(struct socket *, void *)	func,
		void *	arg
	)

Definition at line 3578 of file uipc_socket.c.

void so_lock

(

struct socket *

so

)

Definition at line 3698 of file uipc_socket.c.

int so_options_get

(

const struct socket *

so

)

Definition at line 3614 of file uipc_socket.c.

void so_options_set	(	struct socket *	so,
		int	val
	)

Definition at line 3621 of file uipc_socket.c.

struct protosw* so_protosw_get

(

const struct socket *

so

)

Definition at line 3656 of file uipc_socket.c.

void so_protosw_set	(	struct socket *	so,
		struct protosw *	val
	)

Definition at line 3663 of file uipc_socket.c.

int so_setsockopt	(	struct socket *	so,
		int	level,
		int	optname,
		void *	optval,
		size_t	optlen
	)

Definition at line 2494 of file uipc_socket.c.

References level, and sosetopt().

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struct sockbuf* so_sockbuf_rcv

(

struct socket *

so

)

Definition at line 3586 of file uipc_socket.c.

struct sockbuf* so_sockbuf_snd

(

struct socket *

so

)

Definition at line 3593 of file uipc_socket.c.

void so_sorwakeup

(

struct socket *

so

)

Definition at line 3670 of file uipc_socket.c.

void so_sorwakeup_locked

(

struct socket *

so

)

Definition at line 3684 of file uipc_socket.c.

void so_sowwakeup

(

struct socket *

so

)

Definition at line 3677 of file uipc_socket.c.

void so_sowwakeup_locked

(

struct socket *

so

)

Definition at line 3691 of file uipc_socket.c.

int so_state_get

(

const struct socket *

so

)

Definition at line 3600 of file uipc_socket.c.

void so_state_set	(	struct socket *	so,
		int	val
	)

Definition at line 3607 of file uipc_socket.c.

void so_unlock

(

struct socket *

so

)

Definition at line 3704 of file uipc_socket.c.

void soabort

(

struct socket *

so

)

Definition at line 852 of file uipc_socket.c.

References sofree(), and VNET_SO_ASSERT.

Referenced by soclose(), and sonewconn().

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

Definition at line 876 of file uipc_socket.c.

Referenced by kern_accept().

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static struct socket* soalloc ( struct vnet *  vnet )

static

Definition at line 329 of file uipc_socket.c.

References numopensockets, so_gencnt, and so_global_mtx.

Referenced by socreate(), and sonewconn().

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int sobind	(	struct socket *	so,
		struct sockaddr *	nam,
		struct thread *	td
	)

Definition at line 609 of file uipc_socket.c.

Referenced by kern_bind().

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int socheckuid	(	struct socket *	so,
		uid_t	uid
	)

Definition at line 3334 of file uipc_socket.c.

static __inline void sockbuf_pushsync ( struct sockbuf *  sb, struct mbuf *  nextrecord  )

static

Definition at line 1483 of file uipc_socket.c.

Referenced by soreceive_dgram(), and soreceive_generic().

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static void socket_init ( void *  tag )

static

Definition at line 265 of file uipc_socket.c.

References socket_zone_change().

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static void socket_zone_change ( void *  tag )

static

Definition at line 258 of file uipc_socket.c.

Referenced by socket_init().

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int soclose

(

struct socket *

so

)

Definition at line 765 of file uipc_socket.c.

References funsetown(), hz, soabort(), and sodisconnect().

Referenced by kern_socketpair(), and soo_close().

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int soconnect	(	struct socket *	so,
		struct sockaddr *	nam,
		struct thread *	td
	)

Definition at line 892 of file uipc_socket.c.

References sodisconnect().

Referenced by kern_connect().

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int soconnect2	(	struct socket *	so1,
		struct socket *	so2
	)

Definition at line 923 of file uipc_socket.c.

Referenced by kern_socketpair().

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int socreate	(	int	dom,
		struct socket **	aso,
		int	type,
		int	proto,
		struct ucred *	cred,
		struct thread *	td
	)

Definition at line 408 of file uipc_socket.c.

References crhold(), knlist_init_mtx(), pffindproto(), pffindtype(), prison_check_af(), pru_attach_notsupp(), soalloc(), sodealloc(), and type.

Referenced by kern_socketpair(), and sys_socket().

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static void sodealloc ( struct socket *  so )

static

Definition at line 366 of file uipc_socket.c.

References chgsbsize(), crfree(), do_setopt_accept_filter(), numopensockets, so_gencnt, so_global_mtx, and sx_destroy().

Referenced by socreate(), sofree(), and sonewconn().

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int sodisconnect

(

struct socket *

so

)

Definition at line 934 of file uipc_socket.c.

References VNET_SO_ASSERT.

Referenced by soclose(), and soconnect().

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struct sockaddr* sodupsockaddr	(	const struct sockaddr *	sa,
		int	mflags
	)

Definition at line 3476 of file uipc_socket.c.

References malloc().

Referenced by soreceive_dgram(), soreceive_generic(), and uipc_bind().

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void sofree

(

struct socket *

so

)

Definition at line 687 of file uipc_socket.c.

References knlist_destroy(), pr, sbdestroy(), seldrain(), sodealloc(), and VNET_SO_ASSERT.

Referenced by soabort(), and sonewconn().

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int sogetopt	(	struct socket *	so,
		struct sockopt *	sopt
	)

Definition at line 2744 of file uipc_socket.c.

References do_getopt_accept_filter(), hz, sooptcopyin(), sooptcopyout(), and tick.

Referenced by kern_getsockopt().

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void sohasoutofband

(

struct socket *

so

)

Definition at line 3018 of file uipc_socket.c.

References pgsigio(), and selwakeuppri().

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void soisconnected

(

struct socket *

so

)

Definition at line 3387 of file uipc_socket.c.

References soupcall_clear(), soupcall_set(), wakeup(), and wakeup_one().

Referenced by sowakeup(), and unp_connect2().

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void soisconnecting

(

struct socket *

so

)

Definition at line 3377 of file uipc_socket.c.

Referenced by unp_connect2().

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void soisdisconnected

(

struct socket *

so

)

Definition at line 3453 of file uipc_socket.c.

References sbdrop_locked(), and wakeup().

Referenced by unp_disconnect().

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void soisdisconnecting

(

struct socket *

so

)

Definition at line 3434 of file uipc_socket.c.

References wakeup().

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int solisten	(	struct socket *	so,
		int	backlog,
		struct thread *	td
	)

Definition at line 632 of file uipc_socket.c.

Referenced by sys_listen().

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void solisten_proto	(	struct socket *	so,
		int	backlog
	)

Definition at line 655 of file uipc_socket.c.

References somaxconn.

Referenced by uipc_listen().

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int solisten_proto_check

(

struct socket *

so

)

Definition at line 643 of file uipc_socket.c.

Referenced by uipc_listen().

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struct socket* sonewconn	(	struct socket *	head,
		int	connstatus
	)

Definition at line 484 of file uipc_socket.c.

References crhold(), knlist_init_mtx(), log(), ratecheck(), soabort(), soalloc(), sodealloc(), sofree(), soreserve(), VNET_SO_ASSERT, and wakeup_one().

Referenced by sys_sctp_peeloff(), and unp_connect().

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int soo_kqfilter	(	struct file *	fp,
		struct knote *	kn
	)

Definition at line 3085 of file uipc_socket.c.

References knlist_add(), solisten_filtops, soread_filtops, and sowrite_filtops.

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int soopt_getm	(	struct sockopt *	sopt,
		struct mbuf **	mp
	)

Definition at line 2902 of file uipc_socket.c.

References m_freem().

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int soopt_mcopyin	(	struct sockopt *	sopt,
		struct mbuf *	m
	)

Definition at line 2951 of file uipc_socket.c.

References m_freem(), and panic().

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int soopt_mcopyout	(	struct sockopt *	sopt,
		struct mbuf *	m
	)

Definition at line 2980 of file uipc_socket.c.

References m_freem().

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int sooptcopyin	(	struct sockopt *	sopt,
		void *	buf,
		size_t	len,
		size_t	minlen
	)

Definition at line 2466 of file uipc_socket.c.

Referenced by do_setopt_accept_filter(), sogetopt(), sosetopt(), and uipc_ctloutput().

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int sooptcopyout	(	struct sockopt *	sopt,
		const void *	buf,
		size_t	len
	)

Definition at line 2717 of file uipc_socket.c.

Referenced by do_getopt_accept_filter(), sogetopt(), and uipc_ctloutput().

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int sopoll	(	struct socket *	so,
		int	events,
		struct ucred *	active_cred,
		struct thread *	td
	)

Definition at line 3027 of file uipc_socket.c.

Referenced by selsocket(), and soo_poll().

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int sopoll_generic	(	struct socket *	so,
		int	events,
		struct ucred *	active_cred,
		struct thread *	td
	)

Definition at line 3040 of file uipc_socket.c.

References selrecord().

Referenced by protosw_init().

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int soreceive	(	struct socket *	so,
		struct sockaddr **	psa,
		struct uio *	uio,
		struct mbuf **	mp0,
		struct mbuf **	controlp,
		int *	flagsp
	)

Definition at line 2373 of file uipc_socket.c.

Referenced by kern_recvit(), and soo_read().

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int soreceive_dgram	(	struct socket *	so,
		struct sockaddr **	psa,
		struct uio *	uio,
		struct mbuf **	mp0,
		struct mbuf **	controlp,
		int *	flagsp
	)

Definition at line 2191 of file uipc_socket.c.

References m_freem(), pr, sbwait(), sockbuf_pushsync(), sodupsockaddr(), soreceive_generic(), and uiomove().

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int soreceive_generic	(	struct socket *	so,
		struct sockaddr **	psa,
		struct uio *	uio,
		struct mbuf **	mp0,
		struct mbuf **	controlp,
		int *	flagsp
	)

Definition at line 1527 of file uipc_socket.c.

References m_copym(), m_freem(), pr, sbdroprecord_locked(), sblock(), SBLOCKWAIT, sbunlock(), sbwait(), sockbuf_pushsync(), sodupsockaddr(), soreceive_rcvoob(), type, uiomove(), and VNET_SO_ASSERT.

Referenced by protosw_init(), and soreceive_dgram().

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static int soreceive_rcvoob ( struct socket *  so, struct uio *  uio, int  flags  )

static

Definition at line 1435 of file uipc_socket.c.

References m_freem(), pr, uiomove(), and VNET_SO_ASSERT.

Referenced by soreceive_generic(), and soreceive_stream().

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int soreceive_stream	(	struct socket *	so,
		struct sockaddr **	psa,
		struct uio *	uio,
		struct mbuf **	mp0,
		struct mbuf **	controlp,
		int *	flagsp
	)

Definition at line 1990 of file uipc_socket.c.

References m_cat(), m_copym(), m_mbuftouio(), sbdrop_locked(), sblock(), SBLOCKWAIT, sbunlock(), sbwait(), soreceive_rcvoob(), and VNET_SO_ASSERT.

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void sorflush

(

struct socket *

so

)

Definition at line 2412 of file uipc_socket.c.

References pr, sblock(), sbrelease_internal(), sbunlock(), socantrcvmore(), and VNET_SO_ASSERT.

Referenced by soshutdown(), and unp_gc().

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int sosend	(	struct socket *	so,
		struct sockaddr *	addr,
		struct uio *	uio,
		struct mbuf *	top,
		struct mbuf *	control,
		int	flags,
		struct thread *	td
	)

Definition at line 1414 of file uipc_socket.c.

Referenced by kern_sendit(), and soo_write().

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int sosend_dgram	(	struct socket *	so,
		struct sockaddr *	addr,
		struct uio *	uio,
		struct mbuf *	top,
		struct mbuf *	control,
		int	flags,
		struct thread *	td
	)

Definition at line 1057 of file uipc_socket.c.

References m_freem(), m_uiotombuf(), max_hdr, and VNET_SO_ASSERT.

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int sosend_generic	(	struct socket *	so,
		struct sockaddr *	addr,
		struct uio *	uio,
		struct mbuf *	top,
		struct mbuf *	control,
		int	flags,
		struct thread *	td
	)

Definition at line 1230 of file uipc_socket.c.

References m_freem(), m_uiotombuf(), max_hdr, sblock(), SBLOCKWAIT, sbunlock(), sbwait(), and VNET_SO_ASSERT.

Referenced by protosw_init().

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int sosetopt	(	struct socket *	so,
		struct sockopt *	sopt
	)

Definition at line 2509 of file uipc_socket.c.

References do_setopt_accept_filter(), sbreserve(), sooptcopyin(), and tvtohz().

Referenced by kern_setsockopt(), and so_setsockopt().

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int soshutdown	(	struct socket *	so,
		int	how
	)

Definition at line 2386 of file uipc_socket.c.

References pr, sorflush(), and wakeup().

Referenced by sys_shutdown().

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void sotoxsocket	(	struct socket *	so,
		struct xsocket *	xso
	)

Definition at line 3546 of file uipc_socket.c.

References sbtoxsockbuf().

Referenced by unp_pcblist().

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void soupcall_clear	(	struct socket *	so,
		int	which
	)

Definition at line 3516 of file uipc_socket.c.

References panic().

Referenced by soisconnected(), and sowakeup().

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void soupcall_set	(	struct socket *	so,
		int	which,
		int(*)(struct socket *, void *, int)	func,
		void *	arg
	)

Definition at line 3490 of file uipc_socket.c.

References panic().

Referenced by soisconnected().

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SYSCTL_INT	(	_kern_ipc	,
		OID_AUTO	,
		numopensockets	,
		CTLFLAG_RD	,
		&	numopensockets,
		0	,
		"Number of open sockets"
	)

static int sysctl_maxsockets ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 294 of file uipc_socket.c.

References maxfiles, maxsockets, and sysctl_handle_int().

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SYSCTL_NODE	(	_kern	,
		KERN_IPC	,
		ipc	,
		CTLFLAG_RW	,
		0	,
		"IPC"
	)

SYSCTL_PROC	(	_kern_ipc	,
		KIPC_SOMAXCONN	,
		somaxconn	,
		CTLTYPE_UINT|	CTLFLAG_RW,
		0	,
		sizeof(int)	,
		sysctl_somaxconn	,
		"I"	,
		"Maximum listen socket pending connection accept queue size"
	)

SYSCTL_PROC	(	_kern_ipc	,
		OID_AUTO	,
		maxsockets	,
		CTLTYPE_INT|	CTLFLAG_RW,
		&	maxsockets,
		0	,
		sysctl_maxsockets	,
		"IU"	,
		"Maximum number of sockets avaliable"
	)

static int sysctl_somaxconn ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 194 of file uipc_socket.c.

References somaxconn, and sysctl_handle_int().

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SYSINIT	(	socket	,
		SI_SUB_PROTO_DOMAININIT	,
		SI_ORDER_ANY	,
		socket_init	,
		NULL
	)

SYSINIT	(	param	,
		SI_SUB_TUNABLES	,
		SI_ORDER_ANY	,
		init_maxsockets	,
		NULL
	)

Variable Documentation

struct mtx accept_mtx

Definition at line 234 of file uipc_socket.c.

Referenced by kern_accept().

int maxsockets

Definition at line 255 of file uipc_socket.c.

Referenced by sysctl_maxsockets(), unp_init(), and unp_zone_change().

int numopensockets

static

Definition at line 214 of file uipc_socket.c.

Referenced by soalloc(), and sodealloc().

so_gen_t so_gencnt

Definition at line 178 of file uipc_socket.c.

Referenced by soalloc(), sodealloc(), and unp_pcblist().

struct mtx so_global_mtx

static

Definition at line 241 of file uipc_socket.c.

Referenced by soalloc(), and sodealloc().

uma_zone_t socket_zone

Definition at line 254 of file uipc_socket.c.

struct filterops solisten_filtops

static

Initial value:

= {
        .f_isfd = 1,
        .f_detach = filt_sordetach,
        .f_event = filt_solisten,
}

Definition at line 162 of file uipc_socket.c.

Referenced by soo_kqfilter().

int somaxconn = SOMAXCONN

static

Definition at line 191 of file uipc_socket.c.

Referenced by solisten_proto(), and sysctl_somaxconn().

struct filterops soread_filtops

static

Initial value:

= {
        .f_isfd = 1,
        .f_detach = filt_sordetach,
        .f_event = filt_soread,
}

Definition at line 167 of file uipc_socket.c.

Referenced by soo_kqfilter().

struct filterops sowrite_filtops

static

Initial value:

= {
        .f_isfd = 1,
        .f_detach = filt_sowdetach,
        .f_event = filt_sowrite,
}

Definition at line 172 of file uipc_socket.c.

Referenced by soo_kqfilter().