Fork http://bellard.org/tinyemu

slirp/udp.h

@@ -0,0 +1,86 @@
+/*
+ * 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. 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
+
+/*
+ * Udp protocol header.
+ * Per RFC 768, September, 1981.
+ */
+struct udphdr {
+    uint16_t uh_sport;          /* source port */
+    uint16_t uh_dport;          /* destination port */
+    int16_t  uh_ulen;           /* udp length */
+    uint16_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_mbuf         ui_i.ih_mbuf.mptr
+#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
+
+/*
+ * Names for UDP sysctl objects
+ */
+#define UDPCTL_CHECKSUM         1       /* checksum UDP packets */
+#define UDPCTL_MAXID            2
+
+struct mbuf;
+
+void udp_init(Slirp *);
+void udp_input(register struct mbuf *, int);
+int udp_output(struct socket *, struct mbuf *, struct sockaddr_in *);
+int udp_attach(struct socket *);
+void udp_detach(struct socket *);
+struct socket * udp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
+                           int);
+int udp_output2(struct socket *so, struct mbuf *m,
+                struct sockaddr_in *saddr, struct sockaddr_in *daddr,
+                int iptos);
+#endif