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1.1 root 1: /*
2: * Copyright (c) 1982, 1986, 1993
3: * The Regents of the University of California. All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
1.1.1.3 root 13: * 3. Neither the name of the University nor the names of its contributors
1.1 root 14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: *
29: * @(#)udp.h 8.1 (Berkeley) 6/10/93
30: * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp
31: */
32:
33: #ifndef _UDP_H_
34: #define _UDP_H_
35:
36: #define UDP_TTL 0x60
37: #define UDP_UDPDATALEN 16192
38:
39: /*
40: * Udp protocol header.
41: * Per RFC 768, September, 1981.
42: */
43: struct udphdr {
1.1.1.5 ! root 44: uint16_t uh_sport; /* source port */
! 45: uint16_t uh_dport; /* destination port */
! 46: int16_t uh_ulen; /* udp length */
! 47: uint16_t uh_sum; /* udp checksum */
1.1 root 48: };
49:
50: /*
51: * UDP kernel structures and variables.
52: */
53: struct udpiphdr {
54: struct ipovly ui_i; /* overlaid ip structure */
55: struct udphdr ui_u; /* udp header */
56: };
1.1.1.3 root 57: #define ui_mbuf ui_i.ih_mbuf.mptr
1.1 root 58: #define ui_x1 ui_i.ih_x1
59: #define ui_pr ui_i.ih_pr
60: #define ui_len ui_i.ih_len
61: #define ui_src ui_i.ih_src
62: #define ui_dst ui_i.ih_dst
63: #define ui_sport ui_u.uh_sport
64: #define ui_dport ui_u.uh_dport
65: #define ui_ulen ui_u.uh_ulen
66: #define ui_sum ui_u.uh_sum
67:
68: /*
69: * Names for UDP sysctl objects
70: */
71: #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
72: #define UDPCTL_MAXID 2
73:
74: struct mbuf;
75:
1.1.1.4 root 76: void udp_init(Slirp *);
77: void udp_input(register struct mbuf *, int);
78: int udp_output(struct socket *, struct mbuf *, struct sockaddr_in *);
79: int udp_attach(struct socket *);
80: void udp_detach(struct socket *);
1.1.1.5 ! root 81: struct socket * udp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
1.1.1.4 root 82: int);
1.1.1.2 root 83: int udp_output2(struct socket *so, struct mbuf *m,
1.1 root 84: struct sockaddr_in *saddr, struct sockaddr_in *daddr,
85: int iptos);
86: #endif
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