xnu-344.tar.gz

[apple/xnu.git] / bsd / netinet / dhcp.h

diff --git a/bsd/netinet/dhcp.h b/bsd/netinet/dhcp.h
new file mode 100644 (file)
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--- /dev/null
+++ b/bsd/netinet/dhcp.h
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+
+#ifndef _NETINET_DHCP_H
+#define _NETINET_DHCP_H
+#include <sys/appleapiopts.h>
+
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * dhcp.h
+ * - definitions for DHCP (as specified in RFC2132)
+ */
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+
+struct dhcp {
+    u_char             dp_op;          /* packet opcode type */
+    u_char             dp_htype;       /* hardware addr type */
+    u_char             dp_hlen;        /* hardware addr length */
+    u_char             dp_hops;        /* gateway hops */
+    u_int32_t          dp_xid;         /* transaction ID */
+    u_int16_t          dp_secs;        /* seconds since boot began */  
+    u_int16_t          dp_flags;       /* flags */
+    struct in_addr     dp_ciaddr;      /* client IP address */
+    struct in_addr     dp_yiaddr;      /* 'your' IP address */
+    struct in_addr     dp_siaddr;      /* server IP address */
+    struct in_addr     dp_giaddr;      /* gateway IP address */
+    u_char             dp_chaddr[16];  /* client hardware address */
+    u_char             dp_sname[64];   /* server host name */
+    u_char             dp_file[128];   /* boot file name */
+    u_char             dp_options[0];  /* variable-length options field */
+};
+
+struct dhcp_packet {
+    struct ip          ip;
+    struct udphdr      udp;
+    struct dhcp        dhcp;
+};
+
+#define DHCP_PACKET_OPTIONS_MIN        312
+#define DHCP_PACKET_MIN                (sizeof(struct dhcp) + DHCP_PACKET_OPTIONS_MIN)
+
+/* dhcp message types */
+#define DHCPDISCOVER   1
+#define DHCPOFFER      2
+#define DHCPREQUEST    3
+#define DHCPDECLINE    4
+#define DHCPACK                5
+#define DHCPNAK                6
+#define DHCPRELEASE    7
+#define DHCPINFORM     8
+
+typedef int32_t                        dhcp_time_secs_t; /* absolute time */
+typedef int32_t                        dhcp_lease_t;     /* relative time */
+#define dhcp_time_hton         htonl
+#define dhcp_time_ntoh         ntohl
+#define dhcp_lease_hton                htonl
+#define dhcp_lease_ntoh                ntohl   
+
+#define DHCP_INFINITE_LEASE    ((dhcp_lease_t)-1)
+#define DHCP_INFINITE_TIME     ((dhcp_time_secs_t)-1)
+
+#define DHCP_FLAGS_BROADCAST   ((u_short)0x0001)
+
+#endif _NETINET_DHCP_H