[apple/xnu.git] / bsd / netinet / udp_var.h

/*
 * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * 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.
 * 
 * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1982, 1986, 1989, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)udp_var.h	8.1 (Berkeley) 6/10/93
 */

#ifndef _NETINET_UDP_VAR_H_
#define _NETINET_UDP_VAR_H_
#include <sys/appleapiopts.h>

#include <sys/sysctl.h>

/*
 * UDP kernel structures and variables.
 */
struct	udpiphdr {
	struct 	ipovly ui_i;		/* overlaid ip structure */
	struct	udphdr ui_u;		/* udp header */
};
#define	ui_x1		ui_i.ih_x1
#define	ui_pr		ui_i.ih_pr
#define	ui_len		ui_i.ih_len
#define	ui_src		ui_i.ih_src
#define	ui_dst		ui_i.ih_dst
#define	ui_sport	ui_u.uh_sport
#define	ui_dport	ui_u.uh_dport
#define	ui_ulen		ui_u.uh_ulen
#define	ui_sum		ui_u.uh_sum
#define ui_next		ui_i.ih_next
#define ui_prev		ui_i.ih_prev

struct	udpstat {
				/* input statistics: */
	u_int32_t	udps_ipackets;		/* total input packets */
	u_int32_t	udps_hdrops;		/* packet shorter than header */
	u_int32_t	udps_badsum;		/* checksum error */
	u_int32_t	udps_badlen;		/* data length larger than packet */
	u_int32_t	udps_noport;		/* no socket on port */
	u_int32_t	udps_noportbcast;	/* of above, arrived as broadcast */
	u_int32_t	udps_fullsock;		/* not delivered, input socket full */
	u_int32_t	udpps_pcbcachemiss;	/* input packets missing pcb cache */
	u_int32_t	udpps_pcbhashmiss;	/* input packets not for hashed pcb */
				/* output statistics: */
	u_int32_t	udps_opackets;		/* total output packets */
	u_int32_t	udps_fastout;		/* output packets on fast path */
#ifndef __APPLE__
	u_int32_t	udps_nosum;		/* no checksum */
				/* of no socket on port, arrived as multicast */
	u_int32_t	udps_noportmcast;
#endif
};

/*
 * Names for UDP sysctl objects
 */
#define	UDPCTL_CHECKSUM		1	/* checksum UDP packets */
#define UDPCTL_STATS		2	/* statistics (read-only) */
#define	UDPCTL_MAXDGRAM		3	/* max datagram size */
#define	UDPCTL_RECVSPACE	4	/* default receive buffer space */
#define	UDPCTL_PCBLIST		5	/* list of PCBs for UDP sockets */
#define UDPCTL_MAXID		6

#ifdef KERNEL_PRIVATE
#define UDPCTL_NAMES { \
	{ 0, 0 }, \
	{ "checksum", CTLTYPE_INT }, \
	{ "stats", CTLTYPE_STRUCT }, \
	{ "maxdgram", CTLTYPE_INT }, \
	{ "recvspace", CTLTYPE_INT }, \
	{ "pcblist", CTLTYPE_STRUCT }, \
}

SYSCTL_DECL(_net_inet_udp);

extern struct	pr_usrreqs udp_usrreqs;
extern struct	inpcbhead udb;
extern struct	inpcbinfo udbinfo;
extern u_int32_t	udp_sendspace;
extern u_int32_t	udp_recvspace;
extern struct	udpstat udpstat;
extern int	log_in_vain;

void	udp_ctlinput(int, struct sockaddr *, void *);
int	udp_ctloutput(struct socket *, struct sockopt *);

void	udp_init(void) __attribute__((section("__TEXT, initcode")));
void	udp_input(struct mbuf *, int);

void	udp_notify(struct inpcb *inp, int errno);
int	udp_shutdown(struct socket *so);
int	udp_lock (struct socket *, int, void *);
int	udp_unlock (struct socket *, int, void *);
void	udp_slowtimo (void);
#ifdef _KERN_LOCKS_H_
lck_mtx_t *	udp_getlock (struct socket *, int);
#else
void *	udp_getlock (struct socket *, int);
#endif

#endif /* KERNEL_PRIVATE */
#endif /* _NETINET_UDP_VAR_H_ */
Commit	Line	Data
1c79356b	1	/*
b0d623f7	2	* Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
5d5c5d0d	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* Copyright (c) 1982, 1986, 1989, 1993
	30	* The Regents of the University of California. All rights reserved.
	31	*
	32	* Redistribution and use in source and binary forms, with or without
	33	* modification, are permitted provided that the following conditions
	34	* are met:
	35	* 1. Redistributions of source code must retain the above copyright
	36	* notice, this list of conditions and the following disclaimer.
	37	* 2. Redistributions in binary form must reproduce the above copyright
	38	* notice, this list of conditions and the following disclaimer in the
	39	* documentation and/or other materials provided with the distribution.
	40	* 3. All advertising materials mentioning features or use of this software
	41	* must display the following acknowledgement:
	42	* This product includes software developed by the University of
	43	* California, Berkeley and its contributors.
	44	* 4. Neither the name of the University nor the names of its contributors
	45	* may be used to endorse or promote products derived from this software
	46	* without specific prior written permission.
	47	*
	48	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	49	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	50	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	51	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	52	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	53	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	54	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	55	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	56	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	57	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	58	* SUCH DAMAGE.
	59	*
	60	* @(#)udp_var.h 8.1 (Berkeley) 6/10/93
	61	*/
	62
	63	#ifndef _NETINET_UDP_VAR_H_
	64	#define _NETINET_UDP_VAR_H_
9bccf70c	65	#include <sys/appleapiopts.h>
1c79356b A	66
	67	#include <sys/sysctl.h>
	68
	69	/*
	70	* UDP kernel structures and variables.
	71	*/
	72	struct udpiphdr {
	73	struct ipovly ui_i; /* overlaid ip structure */
	74	struct udphdr ui_u; /* udp header */
	75	};
	76	#define ui_x1 ui_i.ih_x1
	77	#define ui_pr ui_i.ih_pr
	78	#define ui_len ui_i.ih_len
	79	#define ui_src ui_i.ih_src
	80	#define ui_dst ui_i.ih_dst
	81	#define ui_sport ui_u.uh_sport
	82	#define ui_dport ui_u.uh_dport
	83	#define ui_ulen ui_u.uh_ulen
	84	#define ui_sum ui_u.uh_sum
	85	#define ui_next ui_i.ih_next
	86	#define ui_prev ui_i.ih_prev
	87
1c79356b A	88	struct udpstat {
1c79356b A	89	/* input statistics: */
2d21ac55 A	90	u_int32_t udps_ipackets; /* total input packets */
	91	u_int32_t udps_hdrops; /* packet shorter than header */
	92	u_int32_t udps_badsum; /* checksum error */
	93	u_int32_t udps_badlen; /* data length larger than packet */
	94	u_int32_t udps_noport; /* no socket on port */
	95	u_int32_t udps_noportbcast; /* of above, arrived as broadcast */
	96	u_int32_t udps_fullsock; /* not delivered, input socket full */
	97	u_int32_t udpps_pcbcachemiss; /* input packets missing pcb cache */
	98	u_int32_t udpps_pcbhashmiss; /* input packets not for hashed pcb */
1c79356b	99	/* output statistics: */
2d21ac55 A	100	u_int32_t udps_opackets; /* total output packets */
2d21ac55 A	101	u_int32_t udps_fastout; /* output packets on fast path */
9bccf70c	102	#ifndef __APPLE__
2d21ac55 A	103	u_int32_t udps_nosum; /* no checksum */
	104	/* of no socket on port, arrived as multicast */
	105	u_int32_t udps_noportmcast;
9bccf70c	106	#endif
1c79356b A	107	};
	108
	109	/*
	110	* Names for UDP sysctl objects
	111	*/
	112	#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
	113	#define UDPCTL_STATS 2 /* statistics (read-only) */
	114	#define UDPCTL_MAXDGRAM 3 /* max datagram size */
	115	#define UDPCTL_RECVSPACE 4 /* default receive buffer space */
	116	#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
	117	#define UDPCTL_MAXID 6
	118
91447636	119	#ifdef KERNEL_PRIVATE
1c79356b A	120	#define UDPCTL_NAMES { \
	121	{ 0, 0 }, \
	122	{ "checksum", CTLTYPE_INT }, \
	123	{ "stats", CTLTYPE_STRUCT }, \
	124	{ "maxdgram", CTLTYPE_INT }, \
	125	{ "recvspace", CTLTYPE_INT }, \
	126	{ "pcblist", CTLTYPE_STRUCT }, \
	127	}
	128
1c79356b A	129	SYSCTL_DECL(_net_inet_udp);
	130
	131	extern struct pr_usrreqs udp_usrreqs;
	132	extern struct inpcbhead udb;
	133	extern struct inpcbinfo udbinfo;
b0d623f7 A	134	extern u_int32_t udp_sendspace;
b0d623f7 A	135	extern u_int32_t udp_recvspace;
9bccf70c	136	extern struct udpstat udpstat;
1c79356b A	137	extern int log_in_vain;
1c79356b A	138
91447636	139	void udp_ctlinput(int, struct sockaddr , void );
2d21ac55 A	140	int udp_ctloutput(struct socket , struct sockopt );
	141
	142	void udp_init(void) __attribute__((section("__TEXT, initcode")));
91447636	143	void udp_input(struct mbuf *, int);
1c79356b	144
91447636 A	145	void udp_notify(struct inpcb *inp, int errno);
91447636 A	146	int udp_shutdown(struct socket *so);
b0d623f7 A	147	int udp_lock (struct socket , int, void );
b0d623f7 A	148	int udp_unlock (struct socket , int, void );
91447636 A	149	void udp_slowtimo (void);
	150	#ifdef _KERN_LOCKS_H_
	151	lck_mtx_t * udp_getlock (struct socket *, int);
	152	#else
	153	void * udp_getlock (struct socket *, int);
1c79356b A	154	#endif
1c79356b A	155
0c530ab8 A	156	#endif /* KERNEL_PRIVATE */
0c530ab8 A	157	#endif /* _NETINET_UDP_VAR_H_ */