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Annotation of sys/netinet/udp_var.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: udp_var.h,v 1.16 2004/02/17 12:07:45 markus Exp $     */
        !             2: /*     $NetBSD: udp_var.h,v 1.12 1996/02/13 23:44:41 christos Exp $    */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1982, 1986, 1989, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. Neither the name of the University nor the names of its contributors
        !            17:  *    may be used to endorse or promote products derived from this software
        !            18:  *    without specific prior written permission.
        !            19:  *
        !            20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            30:  * SUCH DAMAGE.
        !            31:  *
        !            32:  *     @(#)udp_var.h   8.1 (Berkeley) 6/10/93
        !            33:  */
        !            34:
        !            35: #ifndef _NETINET_UDP_VAR_H_
        !            36: #define _NETINET_UDP_VAR_H_
        !            37:
        !            38: /*
        !            39:  * UDP kernel structures and variables.
        !            40:  */
        !            41: struct udpiphdr {
        !            42:        struct  ipovly ui_i;            /* overlaid ip structure */
        !            43:        struct  udphdr ui_u;            /* udp header */
        !            44: };
        !            45: #define        ui_x1           ui_i.ih_x1
        !            46: #define        ui_pr           ui_i.ih_pr
        !            47: #define        ui_len          ui_i.ih_len
        !            48: #define        ui_src          ui_i.ih_src
        !            49: #define        ui_dst          ui_i.ih_dst
        !            50: #define        ui_sport        ui_u.uh_sport
        !            51: #define        ui_dport        ui_u.uh_dport
        !            52: #define        ui_ulen         ui_u.uh_ulen
        !            53: #define        ui_sum          ui_u.uh_sum
        !            54:
        !            55: struct udpstat {
        !            56:                                /* input statistics: */
        !            57:        u_long  udps_ipackets;          /* total input packets */
        !            58:        u_long  udps_hdrops;            /* packet shorter than header */
        !            59:        u_long  udps_badsum;            /* checksum error */
        !            60:        u_long  udps_nosum;             /* no checksum */
        !            61:        u_long  udps_badlen;            /* data length larger than packet */
        !            62:        u_long  udps_noport;            /* no socket on port */
        !            63:        u_long  udps_noportbcast;       /* of above, arrived as broadcast */
        !            64:        u_long  udps_nosec;             /* dropped for lack of ipsec */
        !            65:        u_long  udps_fullsock;          /* not delivered, input socket full */
        !            66:        u_long  udps_pcbhashmiss;       /* input packets missing pcb hash */
        !            67:        u_long  udps_inhwcsum;          /* input hardware-csummed packets */
        !            68:                                /* output statistics: */
        !            69:        u_long  udps_opackets;          /* total output packets */
        !            70:        u_long  udps_outhwcsum;         /* output hardware-csummed packets */
        !            71: };
        !            72:
        !            73: /*
        !            74:  * Names for UDP sysctl objects
        !            75:  */
        !            76: #define        UDPCTL_CHECKSUM         1 /* checksum UDP packets */
        !            77: #define        UDPCTL_BADDYNAMIC       2 /* return bad dynamic port bitmap */
        !            78: #define UDPCTL_RECVSPACE       3 /* receive buffer space */
        !            79: #define UDPCTL_SENDSPACE       4 /* send buffer space */
        !            80: #define UDPCTL_MAXID           5
        !            81:
        !            82: #define UDPCTL_NAMES { \
        !            83:        { 0, 0 }, \
        !            84:        { "checksum", CTLTYPE_INT }, \
        !            85:        { "baddynamic", CTLTYPE_STRUCT }, \
        !            86:        { "recvspace",  CTLTYPE_INT }, \
        !            87:        { "sendspace",  CTLTYPE_INT }, \
        !            88: }
        !            89:
        !            90: #define UDPCTL_VARS { \
        !            91:        NULL, \
        !            92:        &udpcksum, \
        !            93:        NULL, \
        !            94:        &udp_recvspace, \
        !            95:        &udp_sendspace, \
        !            96: }
        !            97:
        !            98: #ifdef _KERNEL
        !            99: extern struct  inpcbtable udbtable;
        !           100: extern struct  udpstat udpstat;
        !           101:
        !           102: #if defined(INET6) && !defined(TCP6)
        !           103: void   udp6_ctlinput(int, struct sockaddr *, void *);
        !           104: int    udp6_input(struct mbuf **, int *, int);
        !           105: int    udp6_usrreq(struct socket *,
        !           106:            int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);
        !           107: #endif /* INET6 && !TCP6 */
        !           108: void    *udp_ctlinput(int, struct sockaddr *, void *);
        !           109: void    udp_init(void);
        !           110: void    udp_input(struct mbuf *, ...);
        !           111: #ifdef INET6
        !           112: int     udp6_output(struct inpcb *, struct mbuf *, struct mbuf *,
        !           113:        struct mbuf *);
        !           114: #endif /* INET6 */
        !           115: int     udp_output(struct mbuf *, ...);
        !           116: int     udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
        !           117: int     udp_usrreq(struct socket *,
        !           118:            int, struct mbuf *, struct mbuf *, struct mbuf *);
        !           119: #endif /* _KERNEL */
        !           120: #endif /* _NETINET_UDP_VAR_H_ */