Committed network/slirp/udp.h that I forgot to commit before.

src/NETWORK/slirp/udp.h

@@ -0,0 +1,114 @@
+/*
+ * 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
+
+extern struct SLIRPsocket *udp_last_so;
+
+/*
+ * Udp protocol header.
+ * Per RFC 768, September, 1981.
+ */
+#ifdef PRAGMA_PACK_SUPPORTED
+#pragma pack(1)
+#endif
+
+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 */
+} PACKED__;
+
+#ifdef PRAGMA_PACK_SUPPORTED
+#pragma pack(PACK_END)
+#endif
+
+/*
+ * 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 SLIRPsocket udb;
+struct SLIRPmbuf;
+
+void udp_init _P((void));
+void udp_input _P((register struct SLIRPmbuf *, int));
+int udp_output _P((struct SLIRPsocket *, struct SLIRPmbuf *, struct sockaddr_in *));
+int udp_attach _P((struct SLIRPsocket *));
+void udp_detach _P((struct SLIRPsocket *));
+u_int8_t udp_tos _P((struct SLIRPsocket *));
+void udp_emu _P((struct SLIRPsocket *, struct SLIRPmbuf *));
+struct SLIRPsocket * udp_listen _P((u_int, u_int32_t, u_int, int));
+int udp_output2(struct SLIRPsocket *so, struct SLIRPmbuf *m, 
+                struct sockaddr_in *saddr, struct sockaddr_in *daddr,
+                int iptos);
+#endif