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/* $OpenBSD: udp_var.h,v 1.52 2024/07/12 19:50:35 bluhm Exp $ */
/* $NetBSD: udp_var.h,v 1.12 1996/02/13 23:44:41 christos Exp $ */
/*
* 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. 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_
/*
* 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
struct udpstat {
/* input statistics: */
u_long udps_ipackets; /* total input packets */
u_long udps_hdrops; /* packet shorter than header */
u_long udps_badsum; /* checksum error */
u_long udps_nosum; /* no checksum */
u_long udps_badlen; /* data length larger than packet */
u_long udps_noport; /* no socket on port */
u_long udps_noportbcast; /* of above, arrived as broadcast */
u_long udps_nosec; /* dropped for lack of ipsec */
u_long udps_fullsock; /* not delivered, input socket full */
u_long udps_pcbhashmiss; /* input packets missing pcb hash */
u_long udps_inswcsum; /* input software-csummed packets */
/* output statistics: */
u_long udps_opackets; /* total output packets */
u_long udps_outswcsum; /* output software-csummed packets */
};
/*
* Names for UDP sysctl objects
*/
#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
#define UDPCTL_BADDYNAMIC 2 /* return bad dynamic port bitmap */
#define UDPCTL_RECVSPACE 3 /* receive buffer space */
#define UDPCTL_SENDSPACE 4 /* send buffer space */
#define UDPCTL_STATS 5 /* UDP statistics */
#define UDPCTL_ROOTONLY 6 /* root only port bitmap */
#define UDPCTL_MAXID 7
#define UDPCTL_NAMES { \
{ 0, 0 }, \
{ "checksum", CTLTYPE_INT }, \
{ "baddynamic", CTLTYPE_STRUCT }, \
{ "recvspace", CTLTYPE_INT }, \
{ "sendspace", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
{ "rootonly", CTLTYPE_STRUCT }, \
}
#ifdef _KERNEL
#include <sys/percpu.h>
enum udpstat_counters {
/* input statistics: */
udps_ipackets, /* total input packets */
udps_hdrops, /* packet shorter than header */
udps_badsum, /* checksum error */
udps_nosum, /* no checksum */
udps_badlen, /* data length larger than packet */
udps_noport, /* no socket on port */
udps_noportbcast, /* of above, arrived as broadcast */
udps_nosec, /* dropped for lack of ipsec */
udps_fullsock, /* not delivered, input socket full */
udps_pcbhashmiss, /* input packets missing pcb hash */
udps_inswcsum, /* input software-csummed packets */
/* output statistics: */
udps_opackets, /* total output packets */
udps_outswcsum, /* output software-csummed packets */
udps_ncounters
};
extern struct cpumem *udpcounters;
static inline void
udpstat_inc(enum udpstat_counters c)
{
counters_inc(udpcounters, c);
}
extern struct inpcbtable udbtable, udb6table;
extern struct udpstat udpstat;
extern const struct pr_usrreqs udp_usrreqs;
#ifdef INET6
extern const struct pr_usrreqs udp6_usrreqs;
#endif
#ifdef INET6
void udp6_ctlinput(int, struct sockaddr *, u_int, void *);
#endif /* INET6 */
void udp_ctlinput(int, struct sockaddr *, u_int, void *);
void udp_init(void);
int udp_input(struct mbuf **, int *, int, int);
#ifdef INET6
int udp6_output(struct inpcb *, struct mbuf *, struct mbuf *,
struct mbuf *);
#endif /* INET6 */
int udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
int udp_attach(struct socket *, int, int);
int udp_detach(struct socket *);
int udp_bind(struct socket *, struct mbuf *, struct proc *);
int udp_connect(struct socket *, struct mbuf *);
int udp_disconnect(struct socket *);
int udp_shutdown(struct socket *);
int udp_send(struct socket *, struct mbuf *, struct mbuf *,
struct mbuf *);
#endif /* _KERNEL */
#endif /* _NETINET_UDP_VAR_H_ */
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