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 | |