[mirror_edk2.git] / MdeModulePkg / Universal / Network / Dhcp4Dxe / Dhcp4Option.h

/** @file\r
\r
Copyright (c) 2006, Intel Corporation\r
All rights reserved. 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
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
\r
Module Name:\r
\r
  Dhcp4Option.h\r
\r
Abstract:\r
\r
  To validate, parse and process the DHCP options\r
\r
\r
**/\r
\r
#ifndef __EFI_DHCP4_OPTION_H__\r
#define __EFI_DHCP4_OPTION_H__\r
\r
//\r
// DHCP option tags (types)\r
//\r
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
\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
  //\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
};\r
\r
enum {\r
  DHCP_OPTION_MAGIC        = 0x63538263, // Network byte order\r
  DHCP_MAX_OPTIONS         = 256,\r
\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
\r
  //\r
  // Value of DHCP overload option\r
  //\r
  DHCP_OVERLOAD_FILENAME   = 1,\r
  DHCP_OVERLOAD_SVRNAME    = 2,\r
  DHCP_OVERLOAD_BOTH       = 3\r
};\r
\r
//\r
// The DHCP option structure. This structure extends the EFI_DHCP_OPTION\r
// structure to support options longer than 255 bytes, such as classless route.\r
//\r
typedef struct {\r
  UINT8                     Tag;\r
  UINT16                    Len;\r
  UINT8                     *Data;\r
} DHCP_OPTION;\r
\r
//\r
// Structures used to parse the DHCP options with RFC3396 support.\r
//\r
typedef struct {\r
  UINT8                     Index;\r
  UINT16                    Offset;\r
} DHCP_OPTION_COUNT;\r
\r
typedef struct {\r
  DHCP_OPTION_COUNT         *OpCount;\r
  DHCP_OPTION               *Options;\r
  UINT8                     *Buf;\r
} DHCP_OPTION_CONTEXT;\r
\r
//\r
// The options that matters to DHCP driver itself. The user of\r
// DHCP clients may be interested in other options, such as\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
\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
} DHCP_PARAMETER;\r
\r
//\r
// Structure used to describe and validate the format of DHCP options.\r
// Type is the options' data type, such as DHCP_OPTION_INT8. MinOccur\r
// is the minium occurance of this data type. MaxOccur is defined\r
// similarly. If MaxOccur is -1, it means that there is no limit on the\r
// maximum occurance. Alert tells whether DHCP client should further\r
// inspect the option to parse DHCP_PARAMETER.\r
//\r
typedef struct {\r
  UINT8                     Tag;\r
  INTN                      Type;\r
  INTN                      MinOccur;\r
  INTN                      MaxOccur;\r
  BOOLEAN                   Alert;\r
} DHCP_OPTION_FORMAT;\r
\r
typedef\r
EFI_STATUS\r
(*DHCP_CHECK_OPTION) (\r
  IN UINT8                  Tag,\r
  IN UINT8                  Len,\r
  IN UINT8                  *Data,\r
  IN VOID                   *Context\r
  );\r
\r
EFI_STATUS\r
DhcpIterateOptions (\r
  IN  EFI_DHCP4_PACKET      *Packet,\r
  IN  DHCP_CHECK_OPTION     Check,          OPTIONAL\r
  IN  VOID                  *Context\r
  );\r
\r
EFI_STATUS\r
DhcpValidateOptions (\r
  IN  EFI_DHCP4_PACKET      *Packet,\r
  OUT DHCP_PARAMETER        **Para          OPTIONAL\r
  );\r
\r
EFI_STATUS\r
DhcpParseOption (\r
  IN  EFI_DHCP4_PACKET      *Packet,\r
  OUT INTN                  *Count,\r
  OUT DHCP_OPTION           **OptionPoint\r
  );\r
\r
UINT8 *\r
DhcpAppendOption (\r
  IN UINT8                  *Buf,\r
  IN UINT8                  Tag,\r
  IN UINT16                 DataLen,\r
  IN UINT8                  *Data\r
  );\r
\r
EFI_STATUS\r
DhcpBuild (\r
  IN  EFI_DHCP4_PACKET         *SeedPacket,\r
  IN  UINT32                   DeleteCount,\r
  IN  UINT8                    *DeleteList OPTIONAL,\r
  IN  UINT32                   AppendCount,\r
  IN  EFI_DHCP4_PACKET_OPTION  *AppendList[] OPTIONAL,\r
  OUT EFI_DHCP4_PACKET         **NewPacket\r
  );\r
\r
#endif\r
Commit	Line	Data
83cbd279	1	/** @file\r
	2	\r
	3	Copyright (c) 2006, Intel Corporation\r
	4	All rights reserved. This program and the accompanying materials\r
	5	are licensed and made available under the terms and conditions of the BSD License\r
	6	which accompanies this distribution. The full text of the license may be found at\r
	7	http://opensource.org/licenses/bsd-license.php\r
	8	\r
	9	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	10	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	11	\r
	12	\r
	13	Module Name:\r
	14	\r
	15	Dhcp4Option.h\r
	16	\r
	17	Abstract:\r
	18	\r
	19	To validate, parse and process the DHCP options\r
	20	\r
	21	\r
	22	**/\r
	23	\r
	24	#ifndef __EFI_DHCP4_OPTION_H__\r
	25	#define __EFI_DHCP4_OPTION_H__\r
	26	\r
	27	//\r
	28	// DHCP option tags (types)\r
	29	//\r
	30	enum {\r
	31	//\r
	32	// RFC1497 vendor extensions\r
	33	//\r
	34	DHCP_TAG_PAD = 0, // Pad Option\r
	35	DHCP_TAG_EOP = 255, // End Option\r
	36	DHCP_TAG_NETMASK = 1, // Subnet Mask\r
	37	DHCP_TAG_TIME_OFFSET = 2, // Time Offset from UTC\r
	38	DHCP_TAG_ROUTER = 3, // Router option,\r
	39	DHCP_TAG_TIME_SERVER = 4, // Time Server\r
	40	DHCP_TAG_NAME_SERVER = 5, // Name Server\r
	41	DHCP_TAG_DNS_SERVER = 6, // Domain Name Server\r
	42	DHCP_TAG_LOG_SERVER = 7, // Log Server\r
	43	DHCP_TAG_COOKIE_SERVER = 8, // Cookie Server\r
	44	DHCP_TAG_LPR_SERVER = 9, // LPR Print Server\r
	45	DHCP_TAG_IMPRESS_SERVER = 10, // Impress Server\r
	46	DHCP_TAG_RL_SERVER = 11, // Resource Location Server\r
	47	DHCP_TAG_HOSTNAME = 12, // Host Name\r
	48	DHCP_TAG_BOOTFILE_LEN = 13, // Boot File Size\r
	49	DHCP_TAG_DUMP = 14, // Merit Dump File\r
	50	DHCP_TAG_DOMAINNAME = 15, // Domain Name\r
	51	DHCP_TAG_SWAP_SERVER = 16, // Swap Server\r
	52	DHCP_TAG_ROOTPATH = 17, // Root path\r
	53	DHCP_TAG_EXTEND_PATH = 18, // Extensions Path\r
	54	\r
	55	//\r
	56	// IP Layer Parameters per Host\r
	57	//\r
	58	DHCP_TAG_IPFORWARD = 19, // IP Forwarding Enable/Disable\r
	59	DHCP_TAG_NONLOCAL_SRR = 20, // on-Local Source Routing Enable/Disable\r
	60	DHCP_TAG_POLICY_SRR = 21, // Policy Filter\r
	61	DHCP_TAG_EMTU = 22, // Maximum Datagram Reassembly Size\r
	62	DHCP_TAG_TTL = 23, // Default IP Time-to-live\r
	63	DHCP_TAG_PATHMTU_AGE = 24, // Path MTU Aging Timeout\r
	64	DHCP_TAG_PATHMTU_PLATEAU = 25, // Path MTU Plateau Table\r
65	\r
66	//\r
67	// IP Layer Parameters per Interface\r
68	//\r
69	DHCP_TAG_IFMTU = 26, // Interface MTU\r
70	DHCP_TAG_SUBNET_LOCAL = 27, // All Subnets are Local\r
71	DHCP_TAG_BROADCAST = 28, // Broadcast Address\r
72	DHCP_TAG_DISCOVER_MASK = 29, // Perform Mask Discovery\r
73	DHCP_TAG_SUPPLY_MASK = 30, // Mask Supplier\r
74	DHCP_TAG_DISCOVER_ROUTE = 31, // Perform Router Discovery\r
75	DHCP_TAG_ROUTER_SOLICIT = 32, // Router Solicitation Address\r
76	DHCP_TAG_STATIC_ROUTE = 33, // Static Route\r
77	\r
78	//\r
79	// Link Layer Parameters per Interface\r
80	//\r
81	DHCP_TAG_TRAILER = 34, // Trailer Encapsulation\r
82	DHCP_TAG_ARPAGE = 35, // ARP Cache Timeout\r
83	DHCP_TAG_ETHER_ENCAP = 36, // Ethernet Encapsulation\r
84	\r
85	//\r
86	// TCP Parameters\r
87	//\r
88	DHCP_TAG_TCP_TTL = 37, // TCP Default TTL\r
89	DHCP_TAG_KEEP_INTERVAL = 38, // TCP Keepalive Interval\r
90	DHCP_TAG_KEEP_GARBAGE = 39, // TCP Keepalive Garbage\r
91	\r
92	//\r
93	// Application and Service Parameters\r
94	//\r
95	DHCP_TAG_NIS_DOMAIN = 40, // Network Information Service Domain\r
96	DHCP_TAG_NIS_SERVER = 41, // Network Information Servers\r
97	DHCP_TAG_NTP_SERVER = 42, // Network Time Protocol Servers\r
98	DHCP_TAG_VENDOR = 43, // Vendor Specific Information\r
99	DHCP_TAG_NBNS = 44, // NetBIOS over TCP/IP Name Server\r
100	DHCP_TAG_NBDD = 45, // NetBIOS Datagram Distribution Server\r
101	DHCP_TAG_NBTYPE = 46, // NetBIOS over TCP/IP Node Type\r
102	DHCP_TAG_NBSCOPE = 47, // NetBIOS over TCP/IP Scope\r
103	DHCP_TAG_XFONT = 48, // X Window System Font Server\r
104	DHCP_TAG_XDM = 49, // X Window System Display Manager\r
105	DHCP_TAG_NISPLUS = 64, // Network Information Service+ Domain\r
106	DHCP_TAG_NISPLUS_SERVER = 65, // Network Information Service+ Servers\r
107	DHCP_TAG_MOBILEIP = 68, // Mobile IP Home Agent\r
108	DHCP_TAG_SMTP = 69, // Simple Mail Transport Protocol Server\r
109	DHCP_TAG_POP3 = 70, // Post Office Protocol (POP3) Server\r
110	DHCP_TAG_NNTP = 71, // Network News Transport Protocol Server\r
111	DHCP_TAG_WWW = 72, // Default World Wide Web (WWW) Server\r
112	DHCP_TAG_FINGER = 73, // Default Finger Server\r
113	DHCP_TAG_IRC = 74, // Default Internet Relay Chat (IRC) Server\r
114	DHCP_TAG_STTALK = 75, // StreetTalk Server\r
115	DHCP_TAG_STDA = 76, // StreetTalk Directory Assistance Server\r
116	DHCP_TAG_CLASSLESS_ROUTE = 121, // Classless Route\r
117	\r
118	//\r
119	// DHCP Extensions\r
120	//\r
121	DHCP_TAG_REQUEST_IP = 50, // Requested IP Address\r
122	DHCP_TAG_LEASE = 51, // IP Address Lease Time\r
123	DHCP_TAG_OVERLOAD = 52, // Option Overload\r
124	DHCP_TAG_TFTP = 66, // TFTP server name\r
125	DHCP_TAG_BOOTFILE = 67, // Bootfile name\r
126	DHCP_TAG_TYPE = 53, // DHCP Message Type\r
127	DHCP_TAG_SERVER_ID = 54, // Server Identifier\r
128	DHCP_TAG_PARA_LIST = 55, // Parameter Request List\r
129	DHCP_TAG_MESSAGE = 56, // Message\r
130	DHCP_TAG_MAXMSG = 57, // Maximum DHCP Message Size\r
131	DHCP_TAG_T1 = 58, // Renewal (T1) Time Value\r
132	DHCP_TAG_T2 = 59, // Rebinding (T2) Time Value\r
133	DHCP_TAG_VENDOR_CLASS = 60, // Vendor class identifier\r
134	DHCP_TAG_CLIENT_ID = 61 // Client-identifier\r
135	};\r
136	\r
137	enum {\r
138	DHCP_OPTION_MAGIC = 0x63538263, // Network byte order\r
139	DHCP_MAX_OPTIONS = 256,\r
140	\r
141	//\r
142	// DHCP option types, this is used to validate the DHCP options.\r
143	//\r
144	DHCP_OPTION_SWITCH = 1,\r
145	DHCP_OPTION_INT8,\r
146	DHCP_OPTION_INT16,\r
147	DHCP_OPTION_INT32,\r
148	DHCP_OPTION_IP,\r
149	DHCP_OPTION_IPPAIR,\r
150	\r
151	//\r
152	// Value of DHCP overload option\r
153	//\r
154	DHCP_OVERLOAD_FILENAME = 1,\r
155	DHCP_OVERLOAD_SVRNAME = 2,\r
156	DHCP_OVERLOAD_BOTH = 3\r
157	};\r
158	\r
159	//\r
160	// The DHCP option structure. This structure extends the EFI_DHCP_OPTION\r
161	// structure to support options longer than 255 bytes, such as classless route.\r
162	//\r
163	typedef struct {\r
164	UINT8 Tag;\r
165	UINT16 Len;\r
166	UINT8 *Data;\r
167	} DHCP_OPTION;\r
168	\r
169	//\r
170	// Structures used to parse the DHCP options with RFC3396 support.\r
171	//\r
172	typedef struct {\r
173	UINT8 Index;\r
174	UINT16 Offset;\r
175	} DHCP_OPTION_COUNT;\r
176	\r
177	typedef struct {\r
178	DHCP_OPTION_COUNT *OpCount;\r
179	DHCP_OPTION *Options;\r
180	UINT8 *Buf;\r
181	} DHCP_OPTION_CONTEXT;\r
182	\r
183	//\r
184	// The options that matters to DHCP driver itself. The user of\r
185	// DHCP clients may be interested in other options, such as\r
186	// classless route, who can parse the DHCP offer to get them.\r
187	//\r
188	typedef struct {\r
189	IP4_ADDR NetMask; // DHCP_TAG_NETMASK\r
190	IP4_ADDR Router; // DHCP_TAG_ROUTER, only the first router is used\r
191	\r
192	//\r
193	// DHCP specific options\r
194	//\r
195	UINT8 DhcpType; // DHCP_TAG_TYPE\r
196	UINT8 Overload; // DHCP_TAG_OVERLOAD\r
197	IP4_ADDR ServerId; // DHCP_TAG_SERVER_ID\r
198	UINT32 Lease; // DHCP_TAG_LEASE\r
199	UINT32 T1; // DHCP_TAG_T1\r
200	UINT32 T2; // DHCP_TAG_T2\r
201	} DHCP_PARAMETER;\r
202	\r
203	//\r
204	// Structure used to describe and validate the format of DHCP options.\r
205	// Type is the options' data type, such as DHCP_OPTION_INT8. MinOccur\r
206	// is the minium occurance of this data type. MaxOccur is defined\r
207	// similarly. If MaxOccur is -1, it means that there is no limit on the\r
208	// maximum occurance. Alert tells whether DHCP client should further\r
209	// inspect the option to parse DHCP_PARAMETER.\r
210	//\r
211	typedef struct {\r
212	UINT8 Tag;\r
213	INTN Type;\r
214	INTN MinOccur;\r
215	INTN MaxOccur;\r
216	BOOLEAN Alert;\r
217	} DHCP_OPTION_FORMAT;\r
218	\r
219	typedef\r
220	EFI_STATUS\r
221	(*DHCP_CHECK_OPTION) (\r
222	IN UINT8 Tag,\r
223	IN UINT8 Len,\r
224	IN UINT8 *Data,\r
225	IN VOID *Context\r
226	);\r
227	\r
228	EFI_STATUS\r
229	DhcpIterateOptions (\r
230	IN EFI_DHCP4_PACKET *Packet,\r
231	IN DHCP_CHECK_OPTION Check, OPTIONAL\r
232	IN VOID *Context\r
233	);\r
234	\r
235	EFI_STATUS\r
236	DhcpValidateOptions (\r
237	IN EFI_DHCP4_PACKET *Packet,\r
238	OUT DHCP_PARAMETER **Para OPTIONAL\r
239	);\r
240	\r
241	EFI_STATUS\r
242	DhcpParseOption (\r
243	IN EFI_DHCP4_PACKET *Packet,\r
244	OUT INTN *Count,\r
245	OUT DHCP_OPTION **OptionPoint\r
246	);\r
247	\r
248	UINT8 *\r
249	DhcpAppendOption (\r
250	IN UINT8 *Buf,\r
251	IN UINT8 Tag,\r
252	IN UINT16 DataLen,\r
253	IN UINT8 *Data\r
254	);\r
255	\r
256	EFI_STATUS\r
257	DhcpBuild (\r
258	IN EFI_DHCP4_PACKET *SeedPacket,\r
259	IN UINT32 DeleteCount,\r
260	IN UINT8 *DeleteList OPTIONAL,\r
261	IN UINT32 AppendCount,\r
262	IN EFI_DHCP4_PACKET_OPTION *AppendList[] OPTIONAL,\r
263	OUT EFI_DHCP4_PACKET **NewPacket\r
264	);\r
265	\r
266	#endif\r