uipc_syscalls.c File Reference

#include <sys/cdefs.h>
#include "opt_capsicum.h"
#include "opt_inet.h"
#include "opt_inet6.h"
#include "opt_sctp.h"
#include "opt_compat.h"
#include "opt_ktrace.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/capability.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sysproto.h>
#include <sys/malloc.h>
#include <sys/filedesc.h>
#include <sys/event.h>
#include <sys/proc.h>
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/filio.h>
#include <sys/jail.h>
#include <sys/mount.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/sf_buf.h>
#include <sys/sysent.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/signalvar.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <sys/vnode.h>
#include <net/vnet.h>
#include <security/audit/audit.h>
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <vm/vm_pageout.h>
#include <vm/vm_kern.h>
#include <vm/vm_extern.h>
#include <sys/condvar.h>

Include dependency graph for uipc_syscalls.c:

Go to the source code of this file.

Data Structures
struct	sendfile_sync

Macros
#define	SOCK_CLOEXEC   0x10000000
#define	SOCK_NONBLOCK   0x20000000

Functions
	__FBSDID ("$BSDSUniX$")
static int	sendit (struct thread *td, int s, struct msghdr *mp, int flags)
static int	recvit (struct thread *td, int s, struct msghdr *mp, void *namelenp)
static int	accept1 (struct thread *td, struct accept_args *uap, int compat)
static int	do_sendfile (struct thread *td, struct sendfile_args *uap, int compat)
static int	getsockname1 (struct thread *td, struct getsockname_args *uap, int compat)
static int	getpeername1 (struct thread *td, struct getpeername_args *uap, int compat)
	SYSCTL_INT (_kern_ipc, OID_AUTO, nsfbufs, CTLFLAG_RDTUN,&nsfbufs, 0,"Maximum number of sendfile(2) sf_bufs available")
	SYSCTL_INT (_kern_ipc, OID_AUTO, nsfbufspeak, CTLFLAG_RD,&nsfbufspeak, 0,"Number of sendfile(2) sf_bufs at peak usage")
	SYSCTL_INT (_kern_ipc, OID_AUTO, nsfbufsused, CTLFLAG_RD,&nsfbufsused, 0,"Number of sendfile(2) sf_bufs in use")
static int	getsock_cap (struct filedesc *fdp, int fd, cap_rights_t rights, struct file **fpp, u_int *fflagp)
int	sys_socket (struct thread *td, struct socket_args *uap)
int	sys_bind (struct thread *td, struct bind_args *uap)
int	kern_bind (struct thread *td, int fd, struct sockaddr *sa)
int	sys_listen (struct thread *td, struct listen_args *uap)
int	kern_accept (struct thread *td, int s, struct sockaddr **name, socklen_t *namelen, struct file **fp)
int	sys_accept (struct thread *td, struct accept_args *uap)
int	sys_connect (struct thread *td, struct connect_args *uap)
int	kern_connect (struct thread *td, int fd, struct sockaddr *sa)
int	kern_socketpair (struct thread *td, int domain, int type, int protocol, int *rsv)
int	sys_socketpair (struct thread *td, struct socketpair_args *uap)
int	kern_sendit (struct thread *td, int s, struct msghdr *mp, int flags, struct mbuf *control, enum uio_seg segflg)
int	sys_sendto (struct thread *td, struct sendto_args *uap)
int	sys_sendmsg (struct thread *td, struct sendmsg_args *uap)
int	kern_recvit (struct thread *td, int s, struct msghdr *mp, enum uio_seg fromseg, struct mbuf **controlp)
int	sys_recvfrom (struct thread *td, struct recvfrom_args *uap)
int	sys_recvmsg (struct thread *td, struct recvmsg_args *uap)
int	sys_shutdown (struct thread *td, struct shutdown_args *uap)
int	sys_setsockopt (struct thread *td, struct setsockopt_args *uap)
int	kern_setsockopt (struct thread *td, int s, int level, int name, void *val, enum uio_seg valseg, socklen_t valsize)
int	sys_getsockopt (struct thread *td, struct getsockopt_args *uap)
int	kern_getsockopt (struct thread *td, int s, int level, int name, void *val, enum uio_seg valseg, socklen_t *valsize)
int	kern_getsockname (struct thread *td, int fd, struct sockaddr **sa, socklen_t *alen)
int	sys_getsockname (struct thread *td, struct getsockname_args *uap)
int	kern_getpeername (struct thread *td, int fd, struct sockaddr **sa, socklen_t *alen)
int	sys_getpeername (struct thread *td, struct getpeername_args *uap)
int	sockargs (struct mbuf **mp, caddr_t buf, int buflen, int type)
int	getsockaddr (struct sockaddr **namp, caddr_t uaddr, size_t len)
void	sf_buf_mext (void *addr, void *args)
int	sys_sendfile (struct thread *td, struct sendfile_args *uap)
int	kern_sendfile (struct thread *td, struct sendfile_args *uap, struct uio *hdr_uio, struct uio *trl_uio, int compat)
int	sys_sctp_peeloff (struct thread *td, struct sctp_peeloff_args *uap)
int	sys_sctp_generic_sendmsg (struct thread *td, struct sctp_generic_sendmsg_args *uap)
int	sys_sctp_generic_sendmsg_iov (struct thread *td, struct sctp_generic_sendmsg_iov_args *uap)
int	sys_sctp_generic_recvmsg (struct thread *td, struct sctp_generic_recvmsg_args *uap)

Variables
int	nsfbufs
int	nsfbufspeak
int	nsfbufsused

Macro Definition Documentation

#define SOCK_CLOEXEC   0x10000000

Definition at line 103 of file uipc_syscalls.c.

Referenced by kern_socketpair(), and sys_socket().

#define SOCK_NONBLOCK   0x20000000

Definition at line 104 of file uipc_syscalls.c.

Referenced by kern_socketpair(), and sys_socket().

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

static int accept1 ( struct thread *  td, struct accept_args *  uap, int  compat  )

static

Definition at line 314 of file uipc_syscalls.c.

References fdclose(), free(), kern_accept(), and name.

Referenced by sys_accept().

Here is the call graph for this function:

Here is the caller graph for this function:

static int do_sendfile ( struct thread *  td, struct sendfile_args *  uap, int  compat  )

static

Definition at line 1814 of file uipc_syscalls.c.

References copyinuio(), free(), and kern_sendfile().

Referenced by sys_sendfile().

Here is the call graph for this function:

Here is the caller graph for this function:

static int getpeername1 ( struct thread *  td, struct getpeername_args *  uap, int  compat  )

static

Definition at line 1586 of file uipc_syscalls.c.

References free(), and kern_getpeername().

Referenced by sys_getpeername().

Here is the call graph for this function:

Here is the caller graph for this function:

static int getsock_cap ( struct filedesc *  fdp, int  fd, cap_rights_t  rights, struct file **  fpp, u_int *  fflagp  )

static

Definition at line 136 of file uipc_syscalls.c.

References cap_funwrap(), and fget_unlocked().

Referenced by kern_accept(), kern_bind(), kern_connect(), kern_getpeername(), kern_getsockname(), kern_getsockopt(), kern_recvit(), kern_sendfile(), kern_sendit(), kern_setsockopt(), sys_listen(), sys_sctp_generic_recvmsg(), sys_sctp_generic_sendmsg(), sys_sctp_generic_sendmsg_iov(), and sys_shutdown().

Here is the call graph for this function:

Here is the caller graph for this function:

int getsockaddr	(	struct sockaddr **	namp,
		caddr_t	uaddr,
		size_t	len
	)

Definition at line 1729 of file uipc_syscalls.c.

References free(), and malloc().

Referenced by sendit(), sys_bind(), sys_connect(), sys_sctp_generic_sendmsg(), and sys_sctp_generic_sendmsg_iov().

Here is the call graph for this function:

Here is the caller graph for this function:

static int getsockname1 ( struct thread *  td, struct getsockname_args *  uap, int  compat  )

static

Definition at line 1486 of file uipc_syscalls.c.

References free(), and kern_getsockname().

Referenced by sys_getsockname().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_accept	(	struct thread *	td,
		int	s,
		struct sockaddr **	name,
		socklen_t *	namelen,
		struct file **	fp
	)

Definition at line 366 of file uipc_syscalls.c.

References accept_mtx, falloc(), fd, fdclose(), fgetown(), finit(), free(), fsetown(), getsock_cap(), soaccept(), and socketops.

Referenced by accept1().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_bind	(	struct thread *	td,
		int	fd,
		struct sockaddr *	sa
	)

Definition at line 256 of file uipc_syscalls.c.

References getsock_cap(), and sobind().

Referenced by sys_bind().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_connect	(	struct thread *	td,
		int	fd,
		struct sockaddr *	sa
	)

Definition at line 564 of file uipc_syscalls.c.

References getsock_cap(), and soconnect().

Referenced by sys_connect().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_getpeername	(	struct thread *	td,
		int	fd,
		struct sockaddr **	sa,
		socklen_t *	alen
	)

Definition at line 1621 of file uipc_syscalls.c.

References free(), and getsock_cap().

Referenced by getpeername1().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_getsockname	(	struct thread *	td,
		int	fd,
		struct sockaddr **	sa,
		socklen_t *	alen
	)

Definition at line 1521 of file uipc_syscalls.c.

References free(), and getsock_cap().

Referenced by getsockname1().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_getsockopt	(	struct thread *	td,
		int	s,
		int	level,
		int	name,
		void *	val,
		enum uio_seg	valseg,
		socklen_t *	valsize
	)

Definition at line 1435 of file uipc_syscalls.c.

References getsock_cap(), level, name, panic(), and sogetopt().

Referenced by sys_getsockopt().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_recvit	(	struct thread *	td,
		int	s,
		struct msghdr *	mp,
		enum uio_seg	fromseg,
		struct mbuf **	controlp
	)

Definition at line 989 of file uipc_syscalls.c.

References cloneuio(), free(), getsock_cap(), m_freem(), and soreceive().

Referenced by recvit().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_sendfile	(	struct thread *	td,
		struct sendfile_args *	uap,
		struct uio *	hdr_uio,
		struct uio *	trl_uio,
		int	compat
	)

Definition at line 1867 of file uipc_syscalls.c.

References sendfile_sync::count, sendfile_sync::cv, cv_destroy(), cv_init(), fgetvp_read(), free(), getsock_cap(), kern_writev(), m_freem(), m_length(), m_uiotombuf(), malloc(), mbstat, sendfile_sync::mtx, mtx_destroy(), mtx_init(), sblock(), sbunlock(), sbwait(), sf_buf_mext(), vn_rdwr(), and vrele().

Referenced by do_sendfile().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_sendit	(	struct thread *	td,
		int	s,
		struct msghdr *	mp,
		int	flags,
		struct mbuf *	control,
		enum uio_seg	segflg
	)

Definition at line 787 of file uipc_syscalls.c.

References cloneuio(), getsock_cap(), sosend(), and tdsignal().

Referenced by sendit().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_setsockopt	(	struct thread *	td,
		int	s,
		int	level,
		int	name,
		void *	val,
		enum uio_seg	valseg,
		socklen_t	valsize
	)

Definition at line 1356 of file uipc_syscalls.c.

References getsock_cap(), level, name, panic(), and sosetopt().

Referenced by sys_setsockopt().

Here is the call graph for this function:

Here is the caller graph for this function:

int kern_socketpair	(	struct thread *	td,
		int	domain,
		int	type,
		int	protocol,
		int *	rsv
	)

Definition at line 625 of file uipc_syscalls.c.

References falloc(), fd, fdclose(), finit(), SOCK_CLOEXEC, SOCK_NONBLOCK, socketops, soclose(), soconnect2(), and socreate().

Referenced by sys_socketpair().

Here is the call graph for this function:

Here is the caller graph for this function:

static int recvit ( struct thread *  td, int  s, struct msghdr *  mp, void *  namelenp  )

static

Definition at line 1149 of file uipc_syscalls.c.

References kern_recvit().

Referenced by sys_recvfrom(), and sys_recvmsg().

Here is the call graph for this function:

Here is the caller graph for this function:

static int sendit ( struct thread *  td, int  s, struct msghdr *  mp, int  flags  )

static

Definition at line 724 of file uipc_syscalls.c.

References free(), getsockaddr(), kern_sendit(), and sockargs().

Referenced by sys_sendmsg(), and sys_sendto().

Here is the call graph for this function:

Here is the caller graph for this function:

void sf_buf_mext	(	void *	addr,
		void *	args
	)

Definition at line 1768 of file uipc_syscalls.c.

References sendfile_sync::count, sendfile_sync::cv, cv_signal(), and sendfile_sync::mtx.

Referenced by kern_sendfile().

Here is the call graph for this function:

Here is the caller graph for this function:

int sockargs	(	struct mbuf **	mp,
		caddr_t	buf,
		int	buflen,
		int	type
	)

Definition at line 1688 of file uipc_syscalls.c.

Referenced by sendit().

Here is the caller graph for this function:

int sys_accept	(	struct thread *	td,
		struct accept_args *	uap
	)

Definition at line 521 of file uipc_syscalls.c.

References accept1().

Here is the call graph for this function:

int sys_bind	(	struct thread *	td,
		struct bind_args *	uap
	)

Definition at line 236 of file uipc_syscalls.c.

References free(), getsockaddr(), and kern_bind().

Here is the call graph for this function:

int sys_connect	(	struct thread *	td,
		struct connect_args *	uap
	)

Definition at line 542 of file uipc_syscalls.c.

References free(), getsockaddr(), and kern_connect().

Here is the call graph for this function:

int sys_getpeername	(	struct thread *	td,
		struct getpeername_args *	uap
	)

Definition at line 1667 of file uipc_syscalls.c.

References getpeername1().

Here is the call graph for this function:

int sys_getsockname	(	struct thread *	td,
		struct getsockname_args *	uap
	)

Definition at line 1562 of file uipc_syscalls.c.

References getsockname1().

Here is the call graph for this function:

int sys_getsockopt	(	struct thread *	td,
		struct getsockopt_args *	uap
	)

Definition at line 1403 of file uipc_syscalls.c.

References kern_getsockopt().

Here is the call graph for this function:

int sys_listen	(	struct thread *	td,
		struct listen_args *	uap
	)

Definition at line 285 of file uipc_syscalls.c.

References getsock_cap(), and solisten().

Here is the call graph for this function:

int sys_recvfrom	(	struct thread *	td,
		struct recvfrom_args *	uap
	)

Definition at line 1171 of file uipc_syscalls.c.

References recvit().

Here is the call graph for this function:

int sys_recvmsg	(	struct thread *	td,
		struct recvmsg_args *	uap
	)

Definition at line 1281 of file uipc_syscalls.c.

References copyiniov(), free(), and recvit().

Here is the call graph for this function:

int sys_sctp_generic_recvmsg	(	struct thread *	td,
		struct sctp_generic_recvmsg_args *	uap
	)

Definition at line 2697 of file uipc_syscalls.c.

References cloneuio(), copyiniov(), free(), and getsock_cap().

Here is the call graph for this function:

int sys_sctp_generic_sendmsg	(	struct thread *	td,
		struct sctp_generic_sendmsg_args *	uap
	)

Definition at line 2459 of file uipc_syscalls.c.

References free(), getsock_cap(), getsockaddr(), and tdsignal().

Here is the call graph for this function:

int sys_sctp_generic_sendmsg_iov	(	struct thread *	td,
		struct sctp_generic_sendmsg_iov_args *	uap
	)

Definition at line 2570 of file uipc_syscalls.c.

References copyiniov(), free(), getsock_cap(), getsockaddr(), and tdsignal().

Here is the call graph for this function:

int sys_sctp_peeloff	(	struct thread *	td,
		struct sctp_peeloff_args *	uap
	)

Definition at line 2366 of file uipc_syscalls.c.

References falloc(), fd, fdclose(), fgetown(), fgetsock(), finit(), fputsock(), fsetown(), socketops, and sonewconn().

Here is the call graph for this function:

int sys_sendfile	(	struct thread *	td,
		struct sendfile_args *	uap
	)

Definition at line 1807 of file uipc_syscalls.c.

References do_sendfile().

Here is the call graph for this function:

int sys_sendmsg	(	struct thread *	td,
		struct sendmsg_args *	uap
	)

Definition at line 961 of file uipc_syscalls.c.

References copyiniov(), free(), and sendit().

Here is the call graph for this function:

int sys_sendto	(	struct thread *	td,
		struct sendto_args *	uap
	)

Definition at line 877 of file uipc_syscalls.c.

References sendit().

Here is the call graph for this function:

int sys_setsockopt	(	struct thread *	td,
		struct setsockopt_args *	uap
	)

Definition at line 1340 of file uipc_syscalls.c.

References kern_setsockopt().

Here is the call graph for this function:

int sys_shutdown	(	struct thread *	td,
		struct shutdown_args *	uap
	)

Definition at line 1316 of file uipc_syscalls.c.

References getsock_cap(), and soshutdown().

Here is the call graph for this function:

int sys_socket	(	struct thread *	td,
		struct socket_args *	uap
	)

Definition at line 182 of file uipc_syscalls.c.

References falloc(), fd, fdclose(), finit(), SOCK_CLOEXEC, SOCK_NONBLOCK, socketops, socreate(), and type.

Here is the call graph for this function:

int sys_socketpair	(	struct thread *	td,
		struct socketpair_args *	uap
	)

Definition at line 707 of file uipc_syscalls.c.

References kern_close(), and kern_socketpair().

Here is the call graph for this function:

SYSCTL_INT	(	_kern_ipc	,
		OID_AUTO	,
		nsfbufs	,
		CTLFLAG_RDTUN	,
		&	nsfbufs,
		0	,
		"Maximum number of sendfile(2) sf_bufs available"
	)

SYSCTL_INT	(	_kern_ipc	,
		OID_AUTO	,
		nsfbufspeak	,
		CTLFLAG_RD	,
		&	nsfbufspeak,
		0	,
		"Number of sendfile(2) sf_bufs at peak usage"
	)

SYSCTL_INT	(	_kern_ipc	,
		OID_AUTO	,
		nsfbufsused	,
		CTLFLAG_RD	,
		&	nsfbufsused,
		0	,
		"Number of sendfile(2) sf_bufs in use"
	)

Variable Documentation

int nsfbufs

Definition at line 119 of file uipc_syscalls.c.

int nsfbufspeak

Definition at line 120 of file uipc_syscalls.c.

int nsfbufsused

Definition at line 121 of file uipc_syscalls.c.