/* $OpenBSD: udp_var.h,v 1.53 2025/03/02 21:28:32 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, struct netstack *); #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_ */
