#include <sys/cdefs.h>
#include "opt_inet.h"
#include "opt_inet6.h"
#include "opt_ipsec.h"
#include "opt_route.h"
#include "opt_rss.h"
#include <sys/param.h>
#include <sys/domain.h>
#include <sys/eventhandler.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/protosw.h>
#include <sys/sdt.h>
#include <sys/signalvar.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <vm/uma.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/route.h>
#include <net/route/nhop.h>
#include <net/rss_config.h>
#include <netinet/in.h>
#include <netinet/in_kdtrace.h>
#include <netinet/in_fib.h>
#include <netinet/in_pcb.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/ip_options.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/udplite.h>
#include <netinet/in_rss.h>
#include <netipsec/ipsec_support.h>
#include <machine/in_cksum.h>
#include <security/mac/mac_framework.h>

Include dependency graph for udp_usrreq.c:

Macros
#define	V_udpcb_zone VNET(udpcb_zone)

#define	UDBHASHSIZE 128

Functions
	__FBSDID ("$FreeBSD$")

	VNET_DEFINE (int, udp_cksum)

	SYSCTL_INT (_net_inet_udp, UDPCTL_CHECKSUM, checksum, CTLFLAG_VNET\|CTLFLAG_RW, &VNET_NAME(udp_cksum), 0, "compute udp checksum")

	VNET_DEFINE (int, udp_log_in_vain)=0

	SYSCTL_INT (_net_inet_udp, OID_AUTO, log_in_vain, CTLFLAG_VNET\|CTLFLAG_RW, &VNET_NAME(udp_log_in_vain), 0, "Log all incoming UDP packets")

	VNET_DEFINE (int, udp_blackhole)=0

	SYSCTL_INT (_net_inet_udp, OID_AUTO, blackhole, CTLFLAG_VNET\|CTLFLAG_RW, &VNET_NAME(udp_blackhole), 0, "Do not send port unreachables for refused connects")

	VNET_DEFINE (bool, udp_blackhole_local)

	SYSCTL_BOOL (_net_inet_udp, OID_AUTO, blackhole_local, CTLFLAG_VNET\|CTLFLAG_RW, &VNET_NAME(udp_blackhole_local), false, "Enforce net.inet.udp.blackhole for locally originated packets")

	SYSCTL_ULONG (_net_inet_udp, UDPCTL_MAXDGRAM, maxdgram, CTLFLAG_RW, &udp_sendspace, 0, "Maximum outgoing UDP datagram size")

	SYSCTL_ULONG (_net_inet_udp, UDPCTL_RECVSPACE, recvspace, CTLFLAG_RW, &udp_recvspace, 0, "Maximum space for incoming UDP datagrams")

	VNET_DEFINE (struct inpcbinfo, udbinfo)

	VNET_DEFINE (struct inpcbinfo, ulitecbinfo)

	VNET_DEFINE_STATIC (uma_zone_t, udpcb_zone)

	VNET_PCPUSTAT_DEFINE (struct udpstat, udpstat)

	VNET_PCPUSTAT_SYSINIT (udpstat)

	SYSCTL_VNET_PCPUSTAT (_net_inet_udp, UDPCTL_STATS, stats, struct udpstat, udpstat, "UDP statistics (struct udpstat, netinet/udp_var.h)")

	INPCBSTORAGE_DEFINE (udpcbstor, "udpinp", "udp_inpcb", "udp", "udphash")

	INPCBSTORAGE_DEFINE (udplitecbstor, "udpliteinp", "udplite_inpcb", "udplite", "udplitehash")

static void	udp_init (void *arg __unused)

	VNET_SYSINIT (udp_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, udp_init, NULL)

void	kmod_udpstat_inc (int statnum)

int	udp_newudpcb (struct inpcb *inp)

void	udp_discardcb (struct udpcb *up)

struct inpcb *	udp_notify (struct inpcb *inp, int errno)

static int	udp_pcblist (SYSCTL_HANDLER_ARGS)

	SYSCTL_PROC (_net_inet_udp, UDPCTL_PCBLIST, pcblist, CTLTYPE_OPAQUE\|CTLFLAG_RD\|CTLFLAG_MPSAFE, NULL, 0, udp_pcblist, "S,xinpcb", "List of active UDP sockets")

int	udp_ctloutput (struct socket so, struct sockopt sopt)

int	udp_set_kernel_tunneling (struct socket so, udp_tun_func_t f, udp_tun_icmp_t i, void ctx)

int	udp_shutdown (struct socket *so)

Variables
u_long	udp_sendspace = 9216

u_long	udp_recvspace

Macro Definition Documentation

◆ UDBHASHSIZE

#define UDBHASHSIZE 128

Definition at line 156 of file udp_usrreq.c.

◆ V_udpcb_zone

#define V_udpcb_zone VNET(udpcb_zone)

Definition at line 153 of file udp_usrreq.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ INPCBSTORAGE_DEFINE() [1/2]

INPCBSTORAGE_DEFINE	(	udpcbstor	,
		"udpinp"	,
		"udp_inpcb"	,
		"udp"	,
		"udphash"
	)

◆ INPCBSTORAGE_DEFINE() [2/2]

INPCBSTORAGE_DEFINE	(	udplitecbstor	,
		"udpliteinp"	,
		"udplite_inpcb"	,
		"udplite"	,
		"udplitehash"
	)

◆ kmod_udpstat_inc()

void kmod_udpstat_inc ( int statnum )

Definition at line 208 of file udp_usrreq.c.

◆ SYSCTL_BOOL()

SYSCTL_BOOL	(	_net_inet_udp	,
		OID_AUTO	,
		blackhole_local	,
		CTLFLAG_VNET\|	CTLFLAG_RW,
		&	VNET_NAMEudp_blackhole_local,
		false	,
		"Enforce net.inet.udp.blackhole for locally originated packets"
	)

◆ SYSCTL_INT() [1/3]

SYSCTL_INT	(	_net_inet_udp	,
		OID_AUTO	,
		blackhole	,
		CTLFLAG_VNET\|	CTLFLAG_RW,
		&	VNET_NAMEudp_blackhole,
		0	,
		"Do not send port unreachables for refused connects"
	)

◆ SYSCTL_INT() [2/3]

SYSCTL_INT	(	_net_inet_udp	,
		OID_AUTO	,
		log_in_vain	,
		CTLFLAG_VNET\|	CTLFLAG_RW,
		&	VNET_NAMEudp_log_in_vain,
		0	,
		"Log all incoming UDP packets"
	)

◆ SYSCTL_INT() [3/3]

SYSCTL_INT	(	_net_inet_udp	,
		UDPCTL_CHECKSUM	,
		checksum	,
		CTLFLAG_VNET\|	CTLFLAG_RW,
		&	VNET_NAMEudp_cksum,
		0	,
		"compute udp checksum"
	)

◆ SYSCTL_PROC()

SYSCTL_PROC	(	_net_inet_udp	,
		UDPCTL_PCBLIST	,
		pcblist	,
		CTLTYPE_OPAQUE\|CTLFLAG_RD\|	CTLFLAG_MPSAFE,
		NULL	,
		0	,
		udp_pcblist	,
		"	S,
		xinpcb"	,
		"List of active UDP sockets"
	)

◆ SYSCTL_ULONG() [1/2]

SYSCTL_ULONG	(	_net_inet_udp	,
		UDPCTL_MAXDGRAM	,
		maxdgram	,
		CTLFLAG_RW	,
		&	udp_sendspace,
		0	,
		"Maximum outgoing UDP datagram size"
	)

◆ SYSCTL_ULONG() [2/2]

SYSCTL_ULONG	(	_net_inet_udp	,
		UDPCTL_RECVSPACE	,
		recvspace	,
		CTLFLAG_RW	,
		&	udp_recvspace,
		0	,
		"Maximum space for incoming UDP datagrams"
	)

◆ SYSCTL_VNET_PCPUSTAT()

SYSCTL_VNET_PCPUSTAT	(	_net_inet_udp	,
		UDPCTL_STATS	,
		stats	,
		struct udpstat	,
		udpstat	,
		"UDP statistics (struct udpstat, netinet/udp_var.h)"
	)

◆ udp_ctloutput()

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

Definition at line 925 of file udp_usrreq.c.

References INP_CHECK_SOCKAF, INP_WLOCK, INP_WUNLOCK, intoudpcb, ip_ctloutput(), sotoinpcb, udpcb::u_rxcslen, udpcb::u_txcslen, UDP_ENCAP, UDPLITE_RECV_CSCOV, and UDPLITE_SEND_CSCOV.

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◆ udp_discardcb()

void udp_discardcb ( struct udpcb * up )

Definition at line 227 of file udp_usrreq.c.

References V_udpcb_zone.

◆ udp_init()

static void udp_init ( void *arg __unused )

static

Definition at line 178 of file udp_usrreq.c.

References in_pcbinfo_init(), UDBHASHSIZE, V_udbinfo, V_udpcb_zone, and V_ulitecbinfo.

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◆ udp_newudpcb()

int udp_newudpcb ( struct inpcb * inp )

Definition at line 215 of file udp_usrreq.c.

References inpcb::inp_ppcb, and V_udpcb_zone.

◆ udp_notify()

struct inpcb * udp_notify	(	struct inpcb *	inp,
		int	errno
	)

Definition at line 721 of file udp_usrreq.c.

References inpcb::inp_route, inpcb::inp_socket, and INP_WLOCK_ASSERT.

◆ udp_pcblist()

static int udp_pcblist ( SYSCTL_HANDLER_ARGS )

static

Definition at line 814 of file udp_usrreq.c.

References cr_canseeinpcb(), in_pcbtoxinpcb(), INP_ALL_ITERATOR, inpcb::inp_gencnt, inp_next(), INP_RUNLOCK, INPLOOKUP_RLOCKPCB, and V_udbinfo.

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◆ udp_set_kernel_tunneling()

int udp_set_kernel_tunneling	(	struct socket *	so,
		udp_tun_func_t	f,
		udp_tun_icmp_t	i,
		void *	ctx
	)

Definition at line 1547 of file udp_usrreq.c.

References INP_WLOCK, INP_WUNLOCK, intoudpcb, sotoinpcb, udpcb::u_icmp_func, udpcb::u_tun_ctx, and udpcb::u_tun_func.

Referenced by in_gre_setup_socket(), sctp_over_udp_start(), and tcp_over_udp_start().

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◆ udp_shutdown()

int udp_shutdown ( struct socket * so )

Definition at line 1736 of file udp_usrreq.c.

References INP_WLOCK, INP_WUNLOCK, and sotoinpcb.

◆ VNET_DEFINE() [1/6]

VNET_DEFINE	(	bool	,
		udp_blackhole_local
	)

◆ VNET_DEFINE() [2/6]

VNET_DEFINE	(	int	,
		udp_blackhole
	)

pure virtual

◆ VNET_DEFINE() [3/6]

VNET_DEFINE	(	int	,
		udp_cksum
	)

◆ VNET_DEFINE() [4/6]

VNET_DEFINE	(	int	,
		udp_log_in_vain
	)

pure virtual

◆ VNET_DEFINE() [5/6]

VNET_DEFINE	(	struct inpcbinfo	,
		udbinfo
	)

◆ VNET_DEFINE() [6/6]

VNET_DEFINE	(	struct inpcbinfo	,
		ulitecbinfo
	)

◆ VNET_DEFINE_STATIC()

VNET_DEFINE_STATIC	(	uma_zone_t	,
		udpcb_zone
	)

◆ VNET_PCPUSTAT_DEFINE()

VNET_PCPUSTAT_DEFINE	(	struct udpstat	,
		udpstat
	)

◆ VNET_PCPUSTAT_SYSINIT()

VNET_PCPUSTAT_SYSINIT ( udpstat )

◆ VNET_SYSINIT()

VNET_SYSINIT	(	udp_init	,
		SI_SUB_PROTO_DOMAIN	,
		SI_ORDER_THIRD	,
		udp_init	,
		NULL
	)

Variable Documentation

◆ udp_recvspace

u_long udp_recvspace

Initial value:

= 40 * (1024 +
 
                                      sizeof(struct sockaddr_in)
 
                                      )

Definition at line 139 of file udp_usrreq.c.

◆ udp_sendspace

u_long udp_sendspace = 9216

Definition at line 135 of file udp_usrreq.c.

Macros

Functions

Variables

Macro Definition Documentation

◆ UDBHASHSIZE

◆ V_udpcb_zone

Function Documentation

◆ __FBSDID()

◆ INPCBSTORAGE_DEFINE() [1/2]

◆ INPCBSTORAGE_DEFINE() [2/2]

◆ kmod_udpstat_inc()

◆ SYSCTL_BOOL()

◆ SYSCTL_INT() [1/3]

◆ SYSCTL_INT() [2/3]

◆ SYSCTL_INT() [3/3]

◆ SYSCTL_PROC()

◆ SYSCTL_ULONG() [1/2]

◆ SYSCTL_ULONG() [2/2]

◆ SYSCTL_VNET_PCPUSTAT()

◆ udp_ctloutput()

◆ udp_discardcb()

◆ udp_init()

◆ udp_newudpcb()

◆ udp_notify()

◆ udp_pcblist()

◆ udp_set_kernel_tunneling()

◆ udp_shutdown()

◆ VNET_DEFINE() [1/6]

◆ VNET_DEFINE() [2/6]

◆ VNET_DEFINE() [3/6]

◆ VNET_DEFINE() [4/6]

◆ VNET_DEFINE() [5/6]

◆ VNET_DEFINE() [6/6]

◆ VNET_DEFINE_STATIC()

◆ VNET_PCPUSTAT_DEFINE()

◆ VNET_PCPUSTAT_SYSINIT()

◆ VNET_SYSINIT()

Variable Documentation

◆ udp_recvspace

◆ udp_sendspace