/** @file\r
To validate, parse and process the DHCP options.\r
- \r
-Copyright (c) 2006, Intel Corporation.<BR>\r
-All rights reserved. This program and the accompanying materials\r
+\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
///\r
/// DHCP option tags (types)\r
///\r
-typedef enum {\r
- //\r
- // RFC1497 vendor extensions\r
- //\r
- DHCP_TAG_PAD = 0, // Pad Option\r
- DHCP_TAG_EOP = 255, // End Option\r
- DHCP_TAG_NETMASK = 1, // Subnet Mask\r
- DHCP_TAG_TIME_OFFSET = 2, // Time Offset from UTC\r
- DHCP_TAG_ROUTER = 3, // Router option,\r
- DHCP_TAG_TIME_SERVER = 4, // Time Server\r
- DHCP_TAG_NAME_SERVER = 5, // Name Server\r
- DHCP_TAG_DNS_SERVER = 6, // Domain Name Server\r
- DHCP_TAG_LOG_SERVER = 7, // Log Server\r
- DHCP_TAG_COOKIE_SERVER = 8, // Cookie Server\r
- DHCP_TAG_LPR_SERVER = 9, // LPR Print Server\r
- DHCP_TAG_IMPRESS_SERVER = 10, // Impress Server\r
- DHCP_TAG_RL_SERVER = 11, // Resource Location Server\r
- DHCP_TAG_HOSTNAME = 12, // Host Name\r
- DHCP_TAG_BOOTFILE_LEN = 13, // Boot File Size\r
- DHCP_TAG_DUMP = 14, // Merit Dump File\r
- DHCP_TAG_DOMAINNAME = 15, // Domain Name\r
- DHCP_TAG_SWAP_SERVER = 16, // Swap Server\r
- DHCP_TAG_ROOTPATH = 17, // Root path\r
- DHCP_TAG_EXTEND_PATH = 18, // Extensions Path\r
\r
- //\r
- // IP Layer Parameters per Host\r
- //\r
- DHCP_TAG_IPFORWARD = 19, // IP Forwarding Enable/Disable\r
- DHCP_TAG_NONLOCAL_SRR = 20, // on-Local Source Routing Enable/Disable\r
- DHCP_TAG_POLICY_SRR = 21, // Policy Filter\r
- DHCP_TAG_EMTU = 22, // Maximum Datagram Reassembly Size\r
- DHCP_TAG_TTL = 23, // Default IP Time-to-live\r
- DHCP_TAG_PATHMTU_AGE = 24, // Path MTU Aging Timeout\r
- DHCP_TAG_PATHMTU_PLATEAU = 25, // Path MTU Plateau Table\r
+#define DHCP_OPTION_MAGIC 0x63538263 // Network byte order\r
+#define DHCP_MAX_OPTIONS 256\r
\r
- //\r
- // IP Layer Parameters per Interface\r
- //\r
- DHCP_TAG_IFMTU = 26, // Interface MTU\r
- DHCP_TAG_SUBNET_LOCAL = 27, // All Subnets are Local\r
- DHCP_TAG_BROADCAST = 28, // Broadcast Address\r
- DHCP_TAG_DISCOVER_MASK = 29, // Perform Mask Discovery\r
- DHCP_TAG_SUPPLY_MASK = 30, // Mask Supplier\r
- DHCP_TAG_DISCOVER_ROUTE = 31, // Perform Router Discovery\r
- DHCP_TAG_ROUTER_SOLICIT = 32, // Router Solicitation Address\r
- DHCP_TAG_STATIC_ROUTE = 33, // Static Route\r
\r
- //\r
- // Link Layer Parameters per Interface\r
- //\r
- DHCP_TAG_TRAILER = 34, // Trailer Encapsulation\r
- DHCP_TAG_ARPAGE = 35, // ARP Cache Timeout\r
- DHCP_TAG_ETHER_ENCAP = 36, // Ethernet Encapsulation\r
+//\r
+// DHCP option types, this is used to validate the DHCP options.\r
+//\r
+#define DHCP_OPTION_SWITCH 1\r
+#define DHCP_OPTION_INT8 2\r
+#define DHCP_OPTION_INT16 3\r
+#define DHCP_OPTION_INT32 4\r
+#define DHCP_OPTION_IP 5\r
+#define DHCP_OPTION_IPPAIR 6\r
\r
- //\r
- // TCP Parameters\r
- //\r
- DHCP_TAG_TCP_TTL = 37, // TCP Default TTL\r
- DHCP_TAG_KEEP_INTERVAL = 38, // TCP Keepalive Interval\r
- DHCP_TAG_KEEP_GARBAGE = 39, // TCP Keepalive Garbage\r
-\r
- //\r
- // Application and Service Parameters\r
- //\r
- DHCP_TAG_NIS_DOMAIN = 40, // Network Information Service Domain\r
- DHCP_TAG_NIS_SERVER = 41, // Network Information Servers\r
- DHCP_TAG_NTP_SERVER = 42, // Network Time Protocol Servers\r
- DHCP_TAG_VENDOR = 43, // Vendor Specific Information\r
- DHCP_TAG_NBNS = 44, // NetBIOS over TCP/IP Name Server\r
- DHCP_TAG_NBDD = 45, // NetBIOS Datagram Distribution Server\r
- DHCP_TAG_NBTYPE = 46, // NetBIOS over TCP/IP Node Type\r
- DHCP_TAG_NBSCOPE = 47, // NetBIOS over TCP/IP Scope\r
- DHCP_TAG_XFONT = 48, // X Window System Font Server\r
- DHCP_TAG_XDM = 49, // X Window System Display Manager\r
- DHCP_TAG_NISPLUS = 64, // Network Information Service+ Domain\r
- DHCP_TAG_NISPLUS_SERVER = 65, // Network Information Service+ Servers\r
- DHCP_TAG_MOBILEIP = 68, // Mobile IP Home Agent\r
- DHCP_TAG_SMTP = 69, // Simple Mail Transport Protocol Server\r
- DHCP_TAG_POP3 = 70, // Post Office Protocol (POP3) Server\r
- DHCP_TAG_NNTP = 71, // Network News Transport Protocol Server\r
- DHCP_TAG_WWW = 72, // Default World Wide Web (WWW) Server\r
- DHCP_TAG_FINGER = 73, // Default Finger Server\r
- DHCP_TAG_IRC = 74, // Default Internet Relay Chat (IRC) Server\r
- DHCP_TAG_STTALK = 75, // StreetTalk Server\r
- DHCP_TAG_STDA = 76, // StreetTalk Directory Assistance Server\r
- DHCP_TAG_CLASSLESS_ROUTE = 121, // Classless Route\r
-\r
- //\r
- // DHCP Extensions\r
- //\r
- DHCP_TAG_REQUEST_IP = 50, // Requested IP Address\r
- DHCP_TAG_LEASE = 51, // IP Address Lease Time\r
- DHCP_TAG_OVERLOAD = 52, // Option Overload\r
- DHCP_TAG_TFTP = 66, // TFTP server name\r
- DHCP_TAG_BOOTFILE = 67, // Bootfile name\r
- DHCP_TAG_TYPE = 53, // DHCP Message Type\r
- DHCP_TAG_SERVER_ID = 54, // Server Identifier\r
- DHCP_TAG_PARA_LIST = 55, // Parameter Request List\r
- DHCP_TAG_MESSAGE = 56, // Message\r
- DHCP_TAG_MAXMSG = 57, // Maximum DHCP Message Size\r
- DHCP_TAG_T1 = 58, // Renewal (T1) Time Value\r
- DHCP_TAG_T2 = 59, // Rebinding (T2) Time Value\r
- DHCP_TAG_VENDOR_CLASS = 60, // Vendor class identifier\r
- DHCP_TAG_CLIENT_ID = 61 // Client-identifier\r
-} DHCP_TAGS;\r
-\r
-#define DHCP_OPTION_MAGIC 0x63538263 // Network byte order\r
-#define DHCP_MAX_OPTIONS 256\r
-\r
-typedef enum {\r
- //\r
- // DHCP option types, this is used to validate the DHCP options.\r
- //\r
- DHCP_OPTION_SWITCH = 1,\r
- DHCP_OPTION_INT8,\r
- DHCP_OPTION_INT16,\r
- DHCP_OPTION_INT32,\r
- DHCP_OPTION_IP,\r
- DHCP_OPTION_IPPAIR\r
-} DHCP_OPTION_TYPE; \r
-\r
-typedef enum {\r
- //\r
- // Value of DHCP overload option\r
- //\r
- DHCP_OVERLOAD_FILENAME = 1,\r
- DHCP_OVERLOAD_SVRNAME = 2,\r
- DHCP_OVERLOAD_BOTH = 3\r
-} DHCP_OVERLOAD_TYPE;\r
+//\r
+// Value of DHCP overload option\r
+//\r
+#define DHCP_OVERLOAD_FILENAME 1\r
+#define DHCP_OVERLOAD_SVRNAME 2\r
+#define DHCP_OVERLOAD_BOTH 3\r
\r
///\r
/// The DHCP option structure. This structure extends the EFI_DHCP_OPTION\r
/// classless route, who can parse the DHCP offer to get them.\r
///\r
typedef struct {\r
- IP4_ADDR NetMask; // DHCP_TAG_NETMASK\r
- IP4_ADDR Router; // DHCP_TAG_ROUTER, only the first router is used\r
+ IP4_ADDR NetMask; // DHCP4_TAG_NETMASK\r
+ IP4_ADDR Router; // DHCP4_TAG_ROUTER, only the first router is used\r
\r
//\r
// DHCP specific options\r
//\r
- UINT8 DhcpType; // DHCP_TAG_TYPE\r
- UINT8 Overload; // DHCP_TAG_OVERLOAD\r
- IP4_ADDR ServerId; // DHCP_TAG_SERVER_ID\r
- UINT32 Lease; // DHCP_TAG_LEASE\r
- UINT32 T1; // DHCP_TAG_T1\r
- UINT32 T2; // DHCP_TAG_T2\r
+ UINT8 DhcpType; // DHCP4_TAG_MSG_TYPE\r
+ UINT8 Overload; // DHCP4_TAG_OVERLOAD\r
+ IP4_ADDR ServerId; // DHCP4_TAG_SERVER_ID\r
+ UINT32 Lease; // DHCP4_TAG_LEASE\r
+ UINT32 T1; // DHCP4_TAG_T1\r
+ UINT32 T2; // DHCP4_TAG_T2\r
} DHCP_PARAMETER;\r
\r
///\r
@param[out] OptionPoint The array that contains the DHCP options. Caller\r
should free it.\r
\r
+ @retval EFI_NOT_FOUND Cannot find any option.\r
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory to parse the packet.\r
@retval EFI_INVALID_PARAMETER The options are mal-formated\r
@retval EFI_SUCCESS The options are parsed into OptionPoint\r
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