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Diffstat (limited to 'slirp/udp.h')
| -rw-r--r-- | slirp/udp.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/slirp/udp.h b/slirp/udp.h new file mode 100644 index 0000000000..195b1bfff3 --- /dev/null +++ b/slirp/udp.h @@ -0,0 +1,109 @@ +/* + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)udp.h 8.1 (Berkeley) 6/10/93 + * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp + */ + +#ifndef _UDP_H_ +#define _UDP_H_ + +#define UDP_TTL 0x60 +#define UDP_UDPDATALEN 16192 + +extern struct socket *udp_last_so; + +/* + * Udp protocol header. + * Per RFC 768, September, 1981. + */ +struct udphdr { + u_int16_t uh_sport; /* source port */ + u_int16_t uh_dport; /* destination port */ + int16_t uh_ulen; /* udp length */ + u_int16_t uh_sum; /* udp checksum */ +}; + +/* + * UDP kernel structures and variables. + */ +struct udpiphdr { + struct ipovly ui_i; /* overlaid ip structure */ + struct udphdr ui_u; /* udp header */ +}; +#define ui_next ui_i.ih_next +#define ui_prev ui_i.ih_prev +#define ui_x1 ui_i.ih_x1 +#define ui_pr ui_i.ih_pr +#define ui_len ui_i.ih_len +#define ui_src ui_i.ih_src +#define ui_dst ui_i.ih_dst +#define ui_sport ui_u.uh_sport +#define ui_dport ui_u.uh_dport +#define ui_ulen ui_u.uh_ulen +#define ui_sum ui_u.uh_sum + +struct udpstat { + /* input statistics: */ + u_long udps_ipackets; /* total input packets */ + u_long udps_hdrops; /* packet shorter than header */ + u_long udps_badsum; /* checksum error */ + u_long udps_badlen; /* data length larger than packet */ + u_long udps_noport; /* no socket on port */ + u_long udps_noportbcast; /* of above, arrived as broadcast */ + u_long udps_fullsock; /* not delivered, input socket full */ + u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ + /* output statistics: */ + u_long udps_opackets; /* total output packets */ +}; + +/* + * Names for UDP sysctl objects + */ +#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ +#define UDPCTL_MAXID 2 + +extern struct udpstat udpstat; +extern struct socket udb; + +void udp_init _P((void)); +void udp_input _P((register struct mbuf *, int)); +int udp_output _P((struct socket *, struct mbuf *, struct sockaddr_in *)); +int udp_attach _P((struct socket *)); +void udp_detach _P((struct socket *)); +u_int8_t udp_tos _P((struct socket *)); +void udp_emu _P((struct socket *, struct mbuf *)); +struct socket * udp_listen _P((u_int, u_int32_t, u_int, int)); +int udp_output2(struct socket *so, struct mbuf *m, + struct sockaddr_in *saddr, struct sockaddr_in *daddr, + int iptos); +#endif |