1 /* 2 * Copyright (c) 2003, 2004 Jeffrey M. Hsu. All rights reserved. 3 * Copyright (c) 2003, 2004 The DragonFly Project. All rights reserved. 4 * 5 * This code is derived from software contributed to The DragonFly Project 6 * by Jeffrey M. Hsu. 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 DragonFly Project nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific, prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1982, 1986, 1989, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 67 * $FreeBSD: src/sys/netinet/udp_var.h,v 1.22.2.1 2001/02/18 07:12:25 luigi Exp $ 68 * $DragonFly: src/sys/netinet/udp_var.h,v 1.19 2008/11/11 10:46:58 sephe Exp $ 69 */ 70 71 #ifndef _NETINET_UDP_VAR_H_ 72 #define _NETINET_UDP_VAR_H_ 73 74 #ifndef _NETINET_IP_VAR_H_ 75 #include <netinet/ip_var.h> 76 #endif 77 #ifndef _NETINET_UDP_H_ 78 #include <netinet/udp.h> 79 #endif 80 81 /* 82 * UDP kernel structures and variables. 83 */ 84 struct udpiphdr { 85 struct ipovly ui_i; /* overlaid ip structure */ 86 struct udphdr ui_u; /* udp header */ 87 }; 88 #define ui_x1 ui_i.ih_x1 89 #define ui_pr ui_i.ih_pr 90 #define ui_len ui_i.ih_len 91 #define ui_src ui_i.ih_src 92 #define ui_dst ui_i.ih_dst 93 #define ui_sport ui_u.uh_sport 94 #define ui_dport ui_u.uh_dport 95 #define ui_ulen ui_u.uh_ulen 96 #define ui_sum ui_u.uh_sum 97 98 struct udpstat { 99 /* input statistics: */ 100 u_long udps_ipackets; /* total input packets */ 101 u_long udps_hdrops; /* packet shorter than header */ 102 u_long udps_badsum; /* checksum error */ 103 u_long udps_nosum; /* no checksum */ 104 u_long udps_badlen; /* data length larger than packet */ 105 u_long udps_noport; /* no socket on port */ 106 u_long udps_noportbcast; /* of above, arrived as broadcast */ 107 u_long udps_fullsock; /* not delivered, input socket full */ 108 u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ 109 u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */ 110 /* output statistics: */ 111 u_long udps_opackets; /* total output packets */ 112 u_long udps_fastout; /* output packets on fast path */ 113 /* of no socket on port, arrived as multicast */ 114 u_long udps_noportmcast; 115 }; 116 117 /* 118 * Names for UDP sysctl objects 119 */ 120 #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ 121 #define UDPCTL_STATS 2 /* statistics (read-only) */ 122 #define UDPCTL_MAXDGRAM 3 /* max datagram size */ 123 #define UDPCTL_RECVSPACE 4 /* default receive buffer space */ 124 #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */ 125 #define UDPCTL_MAXID 6 126 127 #define UDPCTL_NAMES { \ 128 { 0, 0 }, \ 129 { "checksum", CTLTYPE_INT }, \ 130 { "stats", CTLTYPE_STRUCT }, \ 131 { "maxdgram", CTLTYPE_INT }, \ 132 { "recvspace", CTLTYPE_INT }, \ 133 { "pcblist", CTLTYPE_STRUCT }, \ 134 } 135 136 #ifdef _KERNEL 137 #ifdef SYSCTL_DECL 138 SYSCTL_DECL(_net_inet_udp); 139 #endif 140 141 extern struct pr_usrreqs udp_usrreqs; 142 extern struct inpcbinfo udbinfo; 143 extern u_long udp_sendspace; 144 extern u_long udp_recvspace; 145 extern struct udpstat udpstat; 146 extern int log_in_vain; 147 148 int udp_addrcpu (in_addr_t faddr, in_port_t fport, 149 in_addr_t laddr, in_port_t lport); 150 void udp_ctlinput (int, struct sockaddr *, void *); 151 void udp_init (void); 152 void udp_thread_init (void); 153 void udp_input (struct mbuf *, ...); 154 void udp_notify (struct inpcb *inp, int error); 155 int udp_shutdown (struct socket *so); 156 struct lwkt_port *udp_soport (struct socket *, struct sockaddr *, 157 struct mbuf **, int); 158 struct lwkt_port *udp_ctlport (int, struct sockaddr *, void *); 159 struct lwkt_port *udp_cport (int); 160 161 #endif 162 163 #endif 164