1 /* 2 * Copyright (c) 2008-2016 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 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. 14 * 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 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 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. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 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_ 65 66 #include <sys/appleapiopts.h> 67 #include <sys/sysctl.h> 68 #include <netinet/ip_var.h> 69 #include <netinet/udp.h> 70 71 /* 72 * UDP kernel structures and variables. 73 */ 74 struct udpiphdr { 75 struct ipovly ui_i; /* overlaid ip structure */ 76 struct udphdr ui_u; /* udp header */ 77 }; 78 #define ui_x1 ui_i.ih_x1 79 #define ui_pr ui_i.ih_pr 80 #define ui_len ui_i.ih_len 81 #define ui_src ui_i.ih_src 82 #define ui_dst ui_i.ih_dst 83 #define ui_sport ui_u.uh_sport 84 #define ui_dport ui_u.uh_dport 85 #define ui_ulen ui_u.uh_ulen 86 #define ui_sum ui_u.uh_sum 87 #define ui_next ui_i.ih_next 88 #define ui_prev ui_i.ih_prev 89 90 struct udpstat { 91 /* input statistics: */ 92 u_int32_t udps_ipackets; /* total input packets */ 93 u_int32_t udps_hdrops; /* packet shorter than header */ 94 u_int32_t udps_badsum; /* checksum error */ 95 u_int32_t udps_badlen; /* data length larger than packet */ 96 u_int32_t udps_noport; /* no socket on port */ 97 u_int32_t udps_noportbcast; /* of above, arrived as broadcast */ 98 u_int32_t udps_fullsock; /* not delivered, input socket full */ 99 u_int32_t udpps_pcbcachemiss; /* input packets missing pcb cache */ 100 u_int32_t udpps_pcbhashmiss; /* input packets not for hashed pcb */ 101 /* output statistics: */ 102 u_int32_t udps_opackets; /* total output packets */ 103 u_int32_t udps_fastout; /* output packets on fast path */ 104 u_int32_t udps_nosum; /* no checksum */ 105 u_int32_t udps_noportmcast; /* of no socket on port, multicast */ 106 u_int32_t udps_filtermcast; /* blocked by multicast filter */ 107 /* checksum statistics: */ 108 u_int32_t udps_rcv_swcsum; /* udp swcksum (inbound), packets */ 109 u_int32_t udps_rcv_swcsum_bytes; /* udp swcksum (inbound), bytes */ 110 u_int32_t udps_rcv6_swcsum; /* udp6 swcksum (inbound), packets */ 111 u_int32_t udps_rcv6_swcsum_bytes; /* udp6 swcksum (inbound), bytes */ 112 u_int32_t udps_snd_swcsum; /* udp swcksum (outbound), packets */ 113 u_int32_t udps_snd_swcsum_bytes; /* udp swcksum (outbound), bytes */ 114 u_int32_t udps_snd6_swcsum; /* udp6 swcksum (outbound), packets */ 115 u_int32_t udps_snd6_swcsum_bytes; /* udp6 swcksum (outbound), bytes */ 116 }; 117 118 /* 119 * Names for UDP sysctl objects 120 */ 121 #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ 122 #define UDPCTL_STATS 2 /* statistics (read-only) */ 123 #define UDPCTL_MAXDGRAM 3 /* max datagram size */ 124 #define UDPCTL_RECVSPACE 4 /* default receive buffer space */ 125 #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */ 126 #define UDPCTL_MAXID 6 127 128 #ifdef BSD_KERNEL_PRIVATE 129 #include <kern/locks.h> 130 #include <sys/bitstring.h> 131 132 #define UDPCTL_NAMES { \ 133 { 0, 0 }, \ 134 { "checksum", CTLTYPE_INT }, \ 135 { "stats", CTLTYPE_STRUCT }, \ 136 { "maxdgram", CTLTYPE_INT }, \ 137 { "recvspace", CTLTYPE_INT }, \ 138 { "pcblist", CTLTYPE_STRUCT }, \ 139 } 140 141 #define udp6stat udpstat 142 #define udp6s_opackets udps_opackets 143 144 SYSCTL_DECL(_net_inet_udp); 145 146 struct udpstat_local { 147 u_int64_t port_unreach; 148 u_int64_t faithprefix; /* deprecated */ 149 u_int64_t port0; 150 u_int64_t badlength; 151 u_int64_t badchksum; 152 u_int64_t badmcast; 153 u_int64_t cleanup; 154 u_int64_t badipsec; 155 }; 156 157 extern struct pr_usrreqs udp_usrreqs; 158 extern struct inpcbhead udb; 159 extern struct inpcbinfo udbinfo; 160 extern u_int32_t udp_sendspace; 161 extern u_int32_t udp_recvspace; 162 extern struct udpstat udpstat; 163 extern int udp_log_in_vain; 164 165 __BEGIN_DECLS 166 extern void udp_ctlinput(int, struct sockaddr *, void *, struct ifnet *); 167 extern int udp_ctloutput(struct socket *, struct sockopt *); 168 extern void udp_init(struct protosw *, struct domain *); 169 extern void udp_input(struct mbuf *, int); 170 extern int udp_connectx_common(struct socket *, int, struct sockaddr *, 171 struct sockaddr *, struct proc *, uint32_t, sae_associd_t, 172 sae_connid_t *, uint32_t, void *, uint32_t, struct uio*, user_ssize_t *); 173 extern void udp_notify(struct inpcb *inp, int errno); 174 extern int udp_shutdown(struct socket *so); 175 extern int udp_lock(struct socket *, int, void *); 176 extern int udp_unlock(struct socket *, int, void *); 177 extern lck_mtx_t *udp_getlock(struct socket *, int); 178 extern void udp_get_ports_used(ifnet_t ifp, int, u_int32_t, bitstr_t *); 179 extern uint32_t udp_count_opportunistic(unsigned int, u_int32_t); 180 extern uint32_t udp_find_anypcb_byaddr(struct ifaddr *); 181 182 extern void udp_fill_keepalive_offload_frames(struct ifnet *, 183 struct ifnet_keepalive_offload_frame *, u_int32_t, size_t, u_int32_t *); 184 185 __END_DECLS 186 #endif /* BSD_KERNEL_PRIVATE */ 187 #endif /* _NETINET_UDP_VAR_H_ */ 188