auto import from //depot/cupcake/@135843
diff --git a/libnetutils/dhcpmsg.h b/libnetutils/dhcpmsg.h
new file mode 100644
index 0000000..c86e400
--- /dev/null
+++ b/libnetutils/dhcpmsg.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2008, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _WIFI_DHCP_H_
+#define _WIFI_DHCP_H_
+
+#include <sys/types.h>
+
+#define PORT_BOOTP_SERVER 67
+#define PORT_BOOTP_CLIENT 68
+
+/* RFC 2131 p 9 */
+typedef struct dhcp_msg dhcp_msg;
+
+#define OP_BOOTREQUEST 1
+#define OP_BOOTREPLY 2
+
+#define FLAGS_BROADCAST 0x8000
+
+#define HTYPE_ETHER 1
+
+struct dhcp_msg
+{
+ uint8_t op; /* BOOTREQUEST / BOOTREPLY */
+ uint8_t htype; /* hw addr type */
+ uint8_t hlen; /* hw addr len */
+ uint8_t hops; /* client set to 0 */
+
+ uint32_t xid; /* transaction id */
+
+ uint16_t secs; /* seconds since start of acq */
+ uint16_t flags;
+
+ uint32_t ciaddr; /* client IP addr */
+ uint32_t yiaddr; /* your (client) IP addr */
+ uint32_t siaddr; /* ip addr of next server */
+ /* (DHCPOFFER and DHCPACK) */
+ uint32_t giaddr; /* relay agent IP addr */
+
+ uint8_t chaddr[16]; /* client hw addr */
+ char sname[64]; /* asciiz server hostname */
+ char file[128]; /* asciiz boot file name */
+
+ uint8_t options[1024]; /* optional parameters */
+};
+
+#define DHCP_MSG_FIXED_SIZE 236
+
+/* first four bytes of options are a cookie to indicate that
+** the payload are DHCP options as opposed to some other BOOTP
+** extension.
+*/
+#define OPT_COOKIE1 0x63
+#define OPT_COOKIE2 0x82
+#define OPT_COOKIE3 0x53
+#define OPT_COOKIE4 0x63
+
+/* BOOTP/DHCP options - see RFC 2132 */
+#define OPT_PAD 0
+
+#define OPT_SUBNET_MASK 1 /* 4 <ipaddr> */
+#define OPT_TIME_OFFSET 2 /* 4 <seconds> */
+#define OPT_GATEWAY 3 /* 4*n <ipaddr> * n */
+#define OPT_DNS 6 /* 4*n <ipaddr> * n */
+#define OPT_DOMAIN_NAME 15 /* n <domainnamestring> */
+#define OPT_BROADCAST_ADDR 28 /* 4 <ipaddr> */
+
+#define OPT_REQUESTED_IP 50 /* 4 <ipaddr> */
+#define OPT_LEASE_TIME 51 /* 4 <seconds> */
+#define OPT_MESSAGE_TYPE 53 /* 1 <msgtype> */
+#define OPT_SERVER_ID 54 /* 4 <ipaddr> */
+#define OPT_PARAMETER_LIST 55 /* n <optcode> * n */
+#define OPT_MESSAGE 56 /* n <errorstring> */
+#define OPT_CLASS_ID 60 /* n <opaque> */
+#define OPT_CLIENT_ID 61 /* n <opaque> */
+#define OPT_END 255
+
+/* 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
+
+int init_dhcp_discover_msg(dhcp_msg *msg, void *hwaddr, uint32_t xid);
+
+int init_dhcp_request_msg(dhcp_msg *msg, void *hwaddr, uint32_t xid,
+ uint32_t ipaddr, uint32_t serveraddr);
+
+#endif