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d1f95000 | 1 | /** @file\r |
2 | EFI_DHCP4_PROTOCOL as defined in UEFI 2.0.\r | |
3 | EFI_DHCP4_SERVICE_BINDING_PROTOCOL as defined in UEFI 2.0.\r | |
305a1279 | 4 | These protocols are used to collect configuration information for the EFI IPv4 Protocol\r |
d1f95000 | 5 | drivers and to provide DHCPv4 server and PXE boot server discovery services.\r |
6 | \r | |
9095d37b | 7 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
d1f95000 | 9 | \r |
9095d37b | 10 | @par Revision Reference:\r |
af2dc6a7 | 11 | This Protocol was introduced in UEFI Specification 2.0.\r |
5899caf0 | 12 | \r |
d1f95000 | 13 | **/\r |
14 | \r | |
15 | #ifndef __EFI_DHCP4_PROTOCOL_H__\r | |
16 | #define __EFI_DHCP4_PROTOCOL_H__\r | |
17 | \r | |
18 | #define EFI_DHCP4_PROTOCOL_GUID \\r | |
19 | { \\r | |
20 | 0x8a219718, 0x4ef5, 0x4761, {0x91, 0xc8, 0xc0, 0xf0, 0x4b, 0xda, 0x9e, 0x56 } \\r | |
21 | }\r | |
22 | \r | |
23 | #define EFI_DHCP4_SERVICE_BINDING_PROTOCOL_GUID \\r | |
24 | { \\r | |
25 | 0x9d9a39d8, 0xbd42, 0x4a73, {0xa4, 0xd5, 0x8e, 0xe9, 0x4b, 0xe1, 0x13, 0x80 } \\r | |
26 | }\r | |
305a1279 | 27 | \r |
d1f95000 | 28 | typedef struct _EFI_DHCP4_PROTOCOL EFI_DHCP4_PROTOCOL;\r |
29 | \r | |
d1f95000 | 30 | #pragma pack(1)\r |
31 | typedef struct {\r | |
74fec708 LG |
32 | ///\r |
33 | /// DHCP option code.\r | |
34 | ///\r | |
2f88bd3a | 35 | UINT8 OpCode;\r |
74fec708 LG |
36 | ///\r |
37 | /// Length of the DHCP option data. Not present if OpCode is 0 or 255.\r | |
38 | ///\r | |
2f88bd3a | 39 | UINT8 Length;\r |
74fec708 LG |
40 | ///\r |
41 | /// Start of the DHCP option data. Not present if OpCode is 0 or 255 or if Length is zero.\r | |
42 | ///\r | |
2f88bd3a | 43 | UINT8 Data[1];\r |
d1f95000 | 44 | } EFI_DHCP4_PACKET_OPTION;\r |
45 | #pragma pack()\r | |
46 | \r | |
d1f95000 | 47 | #pragma pack(1)\r |
74fec708 LG |
48 | ///\r |
49 | /// EFI_DHCP4_PACKET defines the format of DHCPv4 packets. See RFC 2131 for more information.\r | |
50 | ///\r | |
d1f95000 | 51 | typedef struct {\r |
2f88bd3a MK |
52 | UINT8 OpCode;\r |
53 | UINT8 HwType;\r | |
54 | UINT8 HwAddrLen;\r | |
55 | UINT8 Hops;\r | |
56 | UINT32 Xid;\r | |
57 | UINT16 Seconds;\r | |
58 | UINT16 Reserved;\r | |
59 | EFI_IPv4_ADDRESS ClientAddr; ///< Client IP address from client.\r | |
60 | EFI_IPv4_ADDRESS YourAddr; ///< Client IP address from server.\r | |
61 | EFI_IPv4_ADDRESS ServerAddr; ///< IP address of next server in bootstrap.\r | |
62 | EFI_IPv4_ADDRESS GatewayAddr; ///< Relay agent IP address.\r | |
63 | UINT8 ClientHwAddr[16]; ///< Client hardware address.\r | |
64 | CHAR8 ServerName[64];\r | |
65 | CHAR8 BootFileName[128];\r | |
66 | } EFI_DHCP4_HEADER;\r | |
d1f95000 | 67 | #pragma pack()\r |
68 | \r | |
d1f95000 | 69 | #pragma pack(1)\r |
70 | typedef struct {\r | |
74fec708 LG |
71 | ///\r |
72 | /// Size of the EFI_DHCP4_PACKET buffer.\r | |
73 | ///\r | |
2f88bd3a | 74 | UINT32 Size;\r |
74fec708 | 75 | ///\r |
9095d37b | 76 | /// Length of the EFI_DHCP4_PACKET from the first byte of the Header field\r |
74fec708 LG |
77 | /// to the last byte of the Option[] field.\r |
78 | ///\r | |
2f88bd3a | 79 | UINT32 Length;\r |
d1f95000 | 80 | \r |
81 | struct {\r | |
74fec708 LG |
82 | ///\r |
83 | /// DHCP packet header.\r | |
84 | ///\r | |
2f88bd3a | 85 | EFI_DHCP4_HEADER Header;\r |
74fec708 LG |
86 | ///\r |
87 | /// DHCP magik cookie in network byte order.\r | |
88 | ///\r | |
2f88bd3a | 89 | UINT32 Magik;\r |
74fec708 LG |
90 | ///\r |
91 | /// Start of the DHCP packed option data.\r | |
92 | ///\r | |
2f88bd3a | 93 | UINT8 Option[1];\r |
d1f95000 | 94 | } Dhcp4;\r |
95 | } EFI_DHCP4_PACKET;\r | |
96 | #pragma pack()\r | |
97 | \r | |
d1f95000 | 98 | typedef enum {\r |
74fec708 | 99 | ///\r |
af2dc6a7 | 100 | /// The EFI DHCPv4 Protocol driver is stopped.\r |
74fec708 | 101 | ///\r |
2f88bd3a | 102 | Dhcp4Stopped = 0x0,\r |
74fec708 | 103 | ///\r |
af2dc6a7 | 104 | /// The EFI DHCPv4 Protocol driver is inactive.\r |
74fec708 | 105 | ///\r |
2f88bd3a | 106 | Dhcp4Init = 0x1,\r |
74fec708 LG |
107 | ///\r |
108 | /// The EFI DHCPv4 Protocol driver is collecting DHCP offer packets from DHCP servers.\r | |
109 | ///\r | |
2f88bd3a | 110 | Dhcp4Selecting = 0x2,\r |
74fec708 LG |
111 | ///\r |
112 | /// The EFI DHCPv4 Protocol driver has sent the request to the DHCP server and is waiting for a response.\r | |
113 | ///\r | |
2f88bd3a | 114 | Dhcp4Requesting = 0x3,\r |
74fec708 LG |
115 | ///\r |
116 | /// The DHCP configuration has completed.\r | |
117 | ///\r | |
2f88bd3a | 118 | Dhcp4Bound = 0x4,\r |
74fec708 LG |
119 | ///\r |
120 | /// The DHCP configuration is being renewed and another request has\r | |
121 | /// been sent out, but it has not received a response from the server yet.\r | |
122 | ///\r | |
2f88bd3a | 123 | Dhcp4Renewing = 0x5,\r |
74fec708 LG |
124 | ///\r |
125 | /// The DHCP configuration has timed out and the EFI DHCPv4\r | |
126 | /// Protocol driver is trying to extend the lease time.\r | |
127 | ///\r | |
2f88bd3a | 128 | Dhcp4Rebinding = 0x6,\r |
74fec708 | 129 | ///\r |
af2dc6a7 | 130 | /// The EFI DHCPv4 Protocol driver was initialized with a previously\r |
74fec708 LG |
131 | /// allocated or known IP address.\r |
132 | ///\r | |
2f88bd3a | 133 | Dhcp4InitReboot = 0x7,\r |
74fec708 LG |
134 | ///\r |
135 | /// The EFI DHCPv4 Protocol driver is seeking to reuse the previously\r | |
136 | /// allocated IP address by sending a request to the DHCP server.\r | |
137 | ///\r | |
2f88bd3a | 138 | Dhcp4Rebooting = 0x8\r |
d1f95000 | 139 | } EFI_DHCP4_STATE;\r |
140 | \r | |
2f88bd3a | 141 | typedef enum {\r |
74fec708 | 142 | ///\r |
0acd6015 | 143 | /// The packet to start the configuration sequence is about to be sent.\r |
74fec708 | 144 | ///\r |
2f88bd3a | 145 | Dhcp4SendDiscover = 0x01,\r |
74fec708 | 146 | ///\r |
0acd6015 | 147 | /// A reply packet was just received.\r |
74fec708 | 148 | ///\r |
2f88bd3a | 149 | Dhcp4RcvdOffer = 0x02,\r |
74fec708 LG |
150 | ///\r |
151 | /// It is time for Dhcp4Callback to select an offer.\r | |
152 | ///\r | |
2f88bd3a | 153 | Dhcp4SelectOffer = 0x03,\r |
74fec708 LG |
154 | ///\r |
155 | /// A request packet is about to be sent.\r | |
156 | ///\r | |
2f88bd3a | 157 | Dhcp4SendRequest = 0x04,\r |
74fec708 LG |
158 | ///\r |
159 | /// A DHCPACK packet was received and will be passed to Dhcp4Callback.\r | |
160 | ///\r | |
2f88bd3a | 161 | Dhcp4RcvdAck = 0x05,\r |
74fec708 LG |
162 | ///\r |
163 | /// A DHCPNAK packet was received and will be passed to Dhcp4Callback.\r | |
164 | ///\r | |
2f88bd3a | 165 | Dhcp4RcvdNak = 0x06,\r |
74fec708 LG |
166 | ///\r |
167 | /// A decline packet is about to be sent.\r | |
168 | ///\r | |
2f88bd3a | 169 | Dhcp4SendDecline = 0x07,\r |
74fec708 LG |
170 | ///\r |
171 | /// The DHCP configuration process has completed. No packet is associated with this event.\r | |
172 | ///\r | |
d1f95000 | 173 | Dhcp4BoundCompleted = 0x08,\r |
74fec708 | 174 | ///\r |
9095d37b | 175 | /// It is time to enter the Dhcp4Renewing state and to contact the server\r |
74fec708 LG |
176 | /// that originally issued the network address. No packet is associated with this event.\r |
177 | ///\r | |
2f88bd3a | 178 | Dhcp4EnterRenewing = 0x09,\r |
74fec708 | 179 | ///\r |
9095d37b | 180 | /// It is time to enter the Dhcp4Rebinding state and to contact any server.\r |
74fec708 LG |
181 | /// No packet is associated with this event.\r |
182 | ///\r | |
d1f95000 | 183 | Dhcp4EnterRebinding = 0x0a,\r |
74fec708 | 184 | ///\r |
9095d37b LG |
185 | /// The configured IP address was lost either because the lease has expired,\r |
186 | /// the user released the configuration, or a DHCPNAK packet was received in\r | |
74fec708 LG |
187 | /// the Dhcp4Renewing or Dhcp4Rebinding state. No packet is associated with this event.\r |
188 | ///\r | |
2f88bd3a | 189 | Dhcp4AddressLost = 0x0b,\r |
74fec708 | 190 | ///\r |
9095d37b LG |
191 | /// The DHCP process failed because a DHCPNAK packet was received or the user\r |
192 | /// aborted the DHCP process at a time when the configuration was not available yet.\r | |
74fec708 LG |
193 | /// No packet is associated with this event.\r |
194 | ///\r | |
2f88bd3a | 195 | Dhcp4Fail = 0x0c\r |
d1f95000 | 196 | } EFI_DHCP4_EVENT;\r |
197 | \r | |
305a1279 | 198 | /**\r |
faac3f0c | 199 | Callback routine.\r |
9095d37b | 200 | \r |
faac3f0c | 201 | EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r |
202 | to intercept events that occurred in the configuration process. This structure\r | |
203 | provides advanced control of each state transition of the DHCP process. The\r | |
204 | returned status code determines the behavior of the EFI DHCPv4 Protocol driver.\r | |
205 | There are three possible returned values, which are described in the following\r | |
206 | table.\r | |
305a1279 | 207 | \r |
af2dc6a7 | 208 | @param This The pointer to the EFI DHCPv4 Protocol instance that is used to\r |
305a1279 | 209 | configure this callback function.\r |
af2dc6a7 | 210 | @param Context The pointer to the context that is initialized by\r |
305a1279 | 211 | EFI_DHCP4_PROTOCOL.Configure().\r |
d1f95000 | 212 | @param CurrentState The current operational state of the EFI DHCPv4 Protocol\r |
305a1279 | 213 | driver.\r |
d1f95000 | 214 | @param Dhcp4Event The event that occurs in the current state, which usually means a\r |
305a1279 | 215 | state transition.\r |
216 | @param Packet The DHCP packet that is going to be sent or already received.\r | |
d1f95000 | 217 | @param NewPacket The packet that is used to replace the above Packet.\r |
305a1279 | 218 | \r |
d1f95000 | 219 | @retval EFI_SUCCESS Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.\r |
0acd6015 | 220 | When it is in the Dhcp4Selecting state, it tells the EFI DHCPv4 Protocol\r |
221 | driver to stop collecting additional packets. The driver will exit\r | |
222 | the Dhcp4Selecting state and enter the Dhcp4Requesting state.\r | |
305a1279 | 223 | @retval EFI_NOT_READY Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol\r |
0acd6015 | 224 | driver will continue to wait for more packets until the retry\r |
305a1279 | 225 | timeout expires.\r |
d1f95000 | 226 | @retval EFI_ABORTED Tells the EFI DHCPv4 Protocol driver to abort the current process and\r |
305a1279 | 227 | return to the Dhcp4Init or Dhcp4InitReboot state.\r |
228 | \r | |
d1f95000 | 229 | **/\r |
305a1279 | 230 | typedef\r |
231 | EFI_STATUS\r | |
8b13229b | 232 | (EFIAPI *EFI_DHCP4_CALLBACK)(\r |
d1f95000 | 233 | IN EFI_DHCP4_PROTOCOL *This,\r |
234 | IN VOID *Context,\r | |
235 | IN EFI_DHCP4_STATE CurrentState,\r | |
236 | IN EFI_DHCP4_EVENT Dhcp4Event,\r | |
305a1279 | 237 | IN EFI_DHCP4_PACKET *Packet OPTIONAL,\r |
d1f95000 | 238 | OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r |
239 | );\r | |
240 | \r | |
d1f95000 | 241 | typedef struct {\r |
74fec708 | 242 | ///\r |
af2dc6a7 | 243 | /// The number of times to try sending a packet during the Dhcp4SendDiscover\r |
0acd6015 | 244 | /// event and waiting for a response during the Dhcp4RcvdOffer event.\r |
74fec708 LG |
245 | /// Set to zero to use the default try counts and timeout values.\r |
246 | ///\r | |
2f88bd3a | 247 | UINT32 DiscoverTryCount;\r |
74fec708 | 248 | ///\r |
9095d37b LG |
249 | /// The maximum amount of time (in seconds) to wait for returned packets in each\r |
250 | /// of the retries. Timeout values of zero will default to a timeout value\r | |
74fec708 LG |
251 | /// of one second. Set to NULL to use default timeout values.\r |
252 | ///\r | |
2f88bd3a | 253 | UINT32 *DiscoverTimeout;\r |
74fec708 | 254 | ///\r |
af2dc6a7 | 255 | /// The number of times to try sending a packet during the Dhcp4SendRequest event\r |
0acd6015 | 256 | /// and waiting for a response during the Dhcp4RcvdAck event before accepting\r |
257 | /// failure. Set to zero to use the default try counts and timeout values.\r | |
74fec708 | 258 | ///\r |
2f88bd3a | 259 | UINT32 RequestTryCount;\r |
74fec708 | 260 | ///\r |
9095d37b LG |
261 | /// The maximum amount of time (in seconds) to wait for return packets in each of the retries.\r |
262 | /// Timeout values of zero will default to a timeout value of one second.\r | |
74fec708 LG |
263 | /// Set to NULL to use default timeout values.\r |
264 | ///\r | |
2f88bd3a | 265 | UINT32 *RequestTimeout;\r |
74fec708 | 266 | ///\r |
0acd6015 | 267 | /// For a DHCPDISCOVER, setting this parameter to the previously allocated IP\r |
9095d37b | 268 | /// address will cause the EFI DHCPv4 Protocol driver to enter the Dhcp4InitReboot state.\r |
0acd6015 | 269 | /// And set this field to 0.0.0.0 to enter the Dhcp4Init state.\r |
270 | /// For a DHCPINFORM this parameter should be set to the client network address\r | |
271 | /// which was assigned to the client during a DHCPDISCOVER.\r | |
74fec708 | 272 | ///\r |
2f88bd3a | 273 | EFI_IPv4_ADDRESS ClientAddress;\r |
74fec708 | 274 | ///\r |
9095d37b | 275 | /// The callback function to intercept various events that occurred in\r |
74fec708 LG |
276 | /// the DHCP configuration process. Set to NULL to ignore all those events.\r |
277 | ///\r | |
2f88bd3a | 278 | EFI_DHCP4_CALLBACK Dhcp4Callback;\r |
74fec708 | 279 | ///\r |
af2dc6a7 | 280 | /// The pointer to the context that will be passed to Dhcp4Callback when it is called.\r |
74fec708 | 281 | ///\r |
2f88bd3a | 282 | VOID *CallbackContext;\r |
74fec708 LG |
283 | ///\r |
284 | /// Number of DHCP options in the OptionList.\r | |
285 | ///\r | |
2f88bd3a | 286 | UINT32 OptionCount;\r |
74fec708 | 287 | ///\r |
0acd6015 | 288 | /// List of DHCP options to be included in every packet that is sent during the\r |
289 | /// Dhcp4SendDiscover event. Pad options are appended automatically by DHCP driver\r | |
290 | /// in outgoing DHCP packets. If OptionList itself contains pad option, they are\r | |
291 | /// ignored by the driver. OptionList can be freed after EFI_DHCP4_PROTOCOL.Configure()\r | |
292 | /// returns. Ignored if OptionCount is zero.\r | |
74fec708 | 293 | ///\r |
2f88bd3a | 294 | EFI_DHCP4_PACKET_OPTION **OptionList;\r |
d1f95000 | 295 | } EFI_DHCP4_CONFIG_DATA;\r |
296 | \r | |
d1f95000 | 297 | typedef struct {\r |
74fec708 | 298 | ///\r |
9095d37b | 299 | /// The EFI DHCPv4 Protocol driver operating state.\r |
74fec708 | 300 | ///\r |
2f88bd3a | 301 | EFI_DHCP4_STATE State;\r |
74fec708 LG |
302 | ///\r |
303 | /// The configuration data of the current EFI DHCPv4 Protocol driver instance.\r | |
304 | ///\r | |
2f88bd3a | 305 | EFI_DHCP4_CONFIG_DATA ConfigData;\r |
74fec708 LG |
306 | ///\r |
307 | /// The client IP address that was acquired from the DHCP server. If it is zero,\r | |
308 | /// the DHCP acquisition has not completed yet and the following fields in this structure are undefined.\r | |
309 | ///\r | |
2f88bd3a | 310 | EFI_IPv4_ADDRESS ClientAddress;\r |
74fec708 LG |
311 | ///\r |
312 | /// The local hardware address.\r | |
313 | ///\r | |
2f88bd3a | 314 | EFI_MAC_ADDRESS ClientMacAddress;\r |
74fec708 LG |
315 | ///\r |
316 | /// The server IP address that is providing the DHCP service to this client.\r | |
317 | ///\r | |
2f88bd3a | 318 | EFI_IPv4_ADDRESS ServerAddress;\r |
74fec708 | 319 | ///\r |
9095d37b | 320 | /// The router IP address that was acquired from the DHCP server.\r |
74fec708 LG |
321 | /// May be zero if the server does not offer this address.\r |
322 | ///\r | |
2f88bd3a | 323 | EFI_IPv4_ADDRESS RouterAddress;\r |
74fec708 LG |
324 | ///\r |
325 | /// The subnet mask of the connected network that was acquired from the DHCP server.\r | |
326 | ///\r | |
2f88bd3a | 327 | EFI_IPv4_ADDRESS SubnetMask;\r |
74fec708 | 328 | ///\r |
9095d37b LG |
329 | /// The lease time (in 1-second units) of the configured IP address.\r |
330 | /// The value 0xFFFFFFFF means that the lease time is infinite.\r | |
74fec708 LG |
331 | /// A default lease of 7 days is used if the DHCP server does not provide a value.\r |
332 | ///\r | |
2f88bd3a | 333 | UINT32 LeaseTime;\r |
74fec708 LG |
334 | ///\r |
335 | /// The cached latest DHCPACK or DHCPNAK or BOOTP REPLY packet. May be NULL if no packet is cached.\r | |
336 | ///\r | |
2f88bd3a | 337 | EFI_DHCP4_PACKET *ReplyPacket;\r |
d1f95000 | 338 | } EFI_DHCP4_MODE_DATA;\r |
339 | \r | |
d1f95000 | 340 | typedef struct {\r |
74fec708 LG |
341 | ///\r |
342 | /// Alternate listening address. It can be a unicast, multicast, or broadcast address.\r | |
343 | ///\r | |
2f88bd3a | 344 | EFI_IPv4_ADDRESS ListenAddress;\r |
74fec708 | 345 | ///\r |
9095d37b | 346 | /// The subnet mask of above listening unicast/broadcast IP address.\r |
74fec708 LG |
347 | /// Ignored if ListenAddress is a multicast address.\r |
348 | ///\r | |
2f88bd3a | 349 | EFI_IPv4_ADDRESS SubnetMask;\r |
74fec708 | 350 | ///\r |
9095d37b | 351 | /// Alternate station source (or listening) port number.\r |
74fec708 LG |
352 | /// If zero, then the default station port number (68) will be used.\r |
353 | ///\r | |
2f88bd3a | 354 | UINT16 ListenPort;\r |
d1f95000 | 355 | } EFI_DHCP4_LISTEN_POINT;\r |
356 | \r | |
d1f95000 | 357 | typedef struct {\r |
74fec708 LG |
358 | ///\r |
359 | /// The completion status of transmitting and receiving.\r | |
360 | ///\r | |
2f88bd3a | 361 | EFI_STATUS Status;\r |
74fec708 | 362 | ///\r |
9095d37b | 363 | /// If not NULL, the event that will be signaled when the collection process\r |
74fec708 LG |
364 | /// completes. If NULL, this function will busy-wait until the collection process competes.\r |
365 | ///\r | |
2f88bd3a | 366 | EFI_EVENT CompletionEvent;\r |
74fec708 | 367 | ///\r |
af2dc6a7 | 368 | /// The pointer to the server IP address. This address may be a unicast, multicast, or broadcast address.\r |
74fec708 | 369 | ///\r |
2f88bd3a | 370 | EFI_IPv4_ADDRESS RemoteAddress;\r |
74fec708 | 371 | ///\r |
af2dc6a7 | 372 | /// The server listening port number. If zero, the default server listening port number (67) will be used.\r |
74fec708 | 373 | ///\r |
2f88bd3a | 374 | UINT16 RemotePort;\r |
74fec708 | 375 | ///\r |
af2dc6a7 | 376 | /// The pointer to the gateway address to override the existing setting.\r |
74fec708 | 377 | ///\r |
2f88bd3a | 378 | EFI_IPv4_ADDRESS GatewayAddress;\r |
74fec708 LG |
379 | ///\r |
380 | /// The number of entries in ListenPoints. If zero, the default station address and port number 68 are used.\r | |
381 | ///\r | |
2f88bd3a | 382 | UINT32 ListenPointCount;\r |
74fec708 | 383 | ///\r |
9095d37b | 384 | /// An array of station address and port number pairs that are used as receiving filters.\r |
74fec708 LG |
385 | /// The first entry is also used as the source address and source port of the outgoing packet.\r |
386 | ///\r | |
2f88bd3a | 387 | EFI_DHCP4_LISTEN_POINT *ListenPoints;\r |
74fec708 | 388 | ///\r |
af2dc6a7 | 389 | /// The number of seconds to collect responses. Zero is invalid.\r |
74fec708 | 390 | ///\r |
2f88bd3a | 391 | UINT32 TimeoutValue;\r |
74fec708 | 392 | ///\r |
af2dc6a7 | 393 | /// The pointer to the packet to be transmitted.\r |
74fec708 | 394 | ///\r |
2f88bd3a | 395 | EFI_DHCP4_PACKET *Packet;\r |
74fec708 LG |
396 | ///\r |
397 | /// Number of received packets.\r | |
398 | ///\r | |
2f88bd3a | 399 | UINT32 ResponseCount;\r |
74fec708 | 400 | ///\r |
af2dc6a7 | 401 | /// The pointer to the allocated list of received packets.\r |
74fec708 | 402 | ///\r |
2f88bd3a | 403 | EFI_DHCP4_PACKET *ResponseList;\r |
d1f95000 | 404 | } EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN;\r |
405 | \r | |
d1f95000 | 406 | /**\r |
407 | Returns the current operating mode and cached data packet for the EFI DHCPv4 Protocol driver.\r | |
9095d37b | 408 | \r |
faac3f0c | 409 | The GetModeData() function returns the current operating mode and cached data\r |
410 | packet for the EFI DHCPv4 Protocol driver.\r | |
d1f95000 | 411 | \r |
af2dc6a7 | 412 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
413 | @param Dhcp4ModeData The pointer to storage for the EFI_DHCP4_MODE_DATA structure.\r | |
d1f95000 | 414 | \r |
415 | @retval EFI_SUCCESS The mode data was returned.\r | |
416 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
417 | \r | |
418 | **/\r | |
305a1279 | 419 | typedef\r |
420 | EFI_STATUS\r | |
8b13229b | 421 | (EFIAPI *EFI_DHCP4_GET_MODE_DATA)(\r |
d1f95000 | 422 | IN EFI_DHCP4_PROTOCOL *This,\r |
423 | OUT EFI_DHCP4_MODE_DATA *Dhcp4ModeData\r | |
ed66e1bc | 424 | );\r |
d1f95000 | 425 | \r |
426 | /**\r | |
427 | Initializes, changes, or resets the operational settings for the EFI DHCPv4 Protocol driver.\r | |
428 | \r | |
faac3f0c | 429 | The Configure() function is used to initialize, change, or reset the operational\r |
430 | settings of the EFI DHCPv4 Protocol driver for the communication device on which\r | |
431 | the EFI DHCPv4 Service Binding Protocol is installed. This function can be\r | |
432 | successfully called only if both of the following are true:\r | |
433 | * This instance of the EFI DHCPv4 Protocol driver is in the Dhcp4Stopped, Dhcp4Init,\r | |
434 | Dhcp4InitReboot, or Dhcp4Bound states.\r | |
435 | * No other EFI DHCPv4 Protocol driver instance that is controlled by this EFI\r | |
436 | DHCPv4 Service Binding Protocol driver instance has configured this EFI DHCPv4\r | |
437 | Protocol driver.\r | |
438 | When this driver is in the Dhcp4Stopped state, it can transfer into one of the\r | |
439 | following two possible initial states:\r | |
440 | * Dhcp4Init\r | |
af2dc6a7 | 441 | * Dhcp4InitReboot.\r |
faac3f0c | 442 | The driver can transfer into these states by calling Configure() with a non-NULL\r |
443 | Dhcp4CfgData. The driver will transfer into the appropriate state based on the\r | |
444 | supplied client network address in the ClientAddress parameter and DHCP options\r | |
445 | in the OptionList parameter as described in RFC 2131.\r | |
446 | When Configure() is called successfully while Dhcp4CfgData is set to NULL, the\r | |
447 | default configuring data will be reset in the EFI DHCPv4 Protocol driver and\r | |
448 | the state of the EFI DHCPv4 Protocol driver will not be changed. If one instance\r | |
449 | wants to make it possible for another instance to configure the EFI DHCPv4 Protocol\r | |
450 | driver, it must call this function with Dhcp4CfgData set to NULL.\r | |
451 | \r | |
af2dc6a7 | 452 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
453 | @param Dhcp4CfgData The pointer to the EFI_DHCP4_CONFIG_DATA.\r | |
d1f95000 | 454 | \r |
455 | @retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the Dhcp4Init or\r | |
456 | Dhcp4InitReboot state, if the original state of this driver\r | |
0acd6015 | 457 | was Dhcp4Stopped, Dhcp4Init,Dhcp4InitReboot, or Dhcp4Bound\r |
458 | and the value of Dhcp4CfgData was not NULL.\r | |
459 | Otherwise, the state was left unchanged.\r | |
d1f95000 | 460 | @retval EFI_ACCESS_DENIED This instance of the EFI DHCPv4 Protocol driver was not in the\r |
461 | Dhcp4Stopped, Dhcp4Init, Dhcp4InitReboot, or Dhcp4Bound state;\r | |
462 | Or onother instance of this EFI DHCPv4 Protocol driver is already\r | |
463 | in a valid configured state.\r | |
74fec708 LG |
464 | @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:\r |
465 | This is NULL.\r | |
466 | DiscoverTryCount > 0 and DiscoverTimeout is NULL\r | |
467 | RequestTryCount > 0 and RequestTimeout is NULL.\r | |
468 | OptionCount >0 and OptionList is NULL.\r | |
469 | ClientAddress is not a valid unicast address.\r | |
d1f95000 | 470 | @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.\r |
471 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
472 | \r | |
473 | **/\r | |
305a1279 | 474 | typedef\r |
d1f95000 | 475 | EFI_STATUS\r |
8b13229b | 476 | (EFIAPI *EFI_DHCP4_CONFIGURE)(\r |
d1f95000 | 477 | IN EFI_DHCP4_PROTOCOL *This,\r |
478 | IN EFI_DHCP4_CONFIG_DATA *Dhcp4CfgData OPTIONAL\r | |
ed66e1bc | 479 | );\r |
d1f95000 | 480 | \r |
d1f95000 | 481 | /**\r |
482 | Starts the DHCP configuration process.\r | |
483 | \r | |
faac3f0c | 484 | The Start() function starts the DHCP configuration process. This function can\r |
485 | be called only when the EFI DHCPv4 Protocol driver is in the Dhcp4Init or\r | |
486 | Dhcp4InitReboot state.\r | |
487 | If the DHCP process completes successfully, the state of the EFI DHCPv4 Protocol\r | |
488 | driver will be transferred through Dhcp4Selecting and Dhcp4Requesting to the\r | |
489 | Dhcp4Bound state. The CompletionEvent will then be signaled if it is not NULL.\r | |
490 | If the process aborts, either by the user or by some unexpected network error,\r | |
491 | the state is restored to the Dhcp4Init state. The Start() function can be called\r | |
492 | again to restart the process.\r | |
493 | Refer to RFC 2131 for precise state transitions during this process. At the\r | |
494 | time when each event occurs in this process, the callback function that was set\r | |
495 | by EFI_DHCP4_PROTOCOL.Configure() will be called and the user can take this\r | |
496 | opportunity to control the process.\r | |
9095d37b | 497 | \r |
af2dc6a7 | 498 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
499 | @param CompletionEvent If not NULL, it indicates the event that will be signaled when the\r | |
d1f95000 | 500 | EFI DHCPv4 Protocol driver is transferred into the\r |
501 | Dhcp4Bound state or when the DHCP process is aborted.\r | |
502 | EFI_DHCP4_PROTOCOL.GetModeData() can be called to\r | |
503 | check the completion status. If NULL,\r | |
504 | EFI_DHCP4_PROTOCOL.Start() will wait until the driver\r | |
505 | is transferred into the Dhcp4Bound state or the process fails.\r | |
506 | \r | |
507 | @retval EFI_SUCCESS The DHCP configuration process has started, or it has completed\r | |
508 | when CompletionEvent is NULL.\r | |
509 | @retval EFI_NOT_STARTED The EFI DHCPv4 Protocol driver is in the Dhcp4Stopped\r | |
510 | state. EFI_DHCP4_PROTOCOL. Configure() needs to be called.\r | |
511 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
512 | @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.\r | |
513 | @retval EFI_TIMEOUT The DHCP configuration process failed because no response was\r | |
514 | received from the server within the specified timeout value.\r | |
515 | @retval EFI_ABORTED The user aborted the DHCP process.\r | |
516 | @retval EFI_ALREADY_STARTED Some other EFI DHCPv4 Protocol instance already started the\r | |
517 | DHCP process.\r | |
518 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
c5c3e7e2 | 519 | @retval EFI_NO_MEDIA There was a media error.\r |
d1f95000 | 520 | \r |
521 | **/\r | |
305a1279 | 522 | typedef\r |
d1f95000 | 523 | EFI_STATUS\r |
8b13229b | 524 | (EFIAPI *EFI_DHCP4_START)(\r |
d1f95000 | 525 | IN EFI_DHCP4_PROTOCOL *This,\r |
526 | IN EFI_EVENT CompletionEvent OPTIONAL\r | |
ed66e1bc | 527 | );\r |
d1f95000 | 528 | \r |
529 | /**\r | |
530 | Extends the lease time by sending a request packet.\r | |
9095d37b | 531 | \r |
faac3f0c | 532 | The RenewRebind() function is used to manually extend the lease time when the\r |
af2dc6a7 | 533 | EFI DHCPv4 Protocol driver is in the Dhcp4Bound state, and the lease time has\r |
faac3f0c | 534 | not expired yet. This function will send a request packet to the previously\r |
535 | found server (or to any server when RebindRequest is TRUE) and transfer the\r | |
536 | state into the Dhcp4Renewing state (or Dhcp4Rebinding when RebindingRequest is\r | |
537 | TRUE). When a response is received, the state is returned to Dhcp4Bound.\r | |
538 | If no response is received before the try count is exceeded (the RequestTryCount\r | |
539 | field that is specified in EFI_DHCP4_CONFIG_DATA) but before the lease time that\r | |
540 | was issued by the previous server expires, the driver will return to the Dhcp4Bound\r | |
af2dc6a7 | 541 | state, and the previous configuration is restored. The outgoing and incoming packets\r |
faac3f0c | 542 | can be captured by the EFI_DHCP4_CALLBACK function.\r |
d1f95000 | 543 | \r |
af2dc6a7 | 544 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
d1f95000 | 545 | @param RebindRequest If TRUE, this function broadcasts the request packets and enters\r |
546 | the Dhcp4Rebinding state. Otherwise, it sends a unicast\r | |
547 | request packet and enters the Dhcp4Renewing state.\r | |
548 | @param CompletionEvent If not NULL, this event is signaled when the renew/rebind phase\r | |
549 | completes or some error occurs.\r | |
550 | EFI_DHCP4_PROTOCOL.GetModeData() can be called to\r | |
551 | check the completion status. If NULL,\r | |
552 | EFI_DHCP4_PROTOCOL.RenewRebind() will busy-wait\r | |
553 | until the DHCP process finishes.\r | |
554 | \r | |
555 | @retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the\r | |
556 | Dhcp4Renewing state or is back to the Dhcp4Bound state.\r | |
557 | @retval EFI_NOT_STARTED The EFI DHCPv4 Protocol driver is in the Dhcp4Stopped\r | |
558 | state. EFI_DHCP4_PROTOCOL.Configure() needs to\r | |
559 | be called.\r | |
560 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
561 | @retval EFI_TIMEOUT There was no response from the server when the try count was\r | |
562 | exceeded.\r | |
563 | @retval EFI_ACCESS_DENIED The driver is not in the Dhcp4Bound state.\r | |
564 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
565 | \r | |
566 | **/\r | |
567 | typedef\r | |
568 | EFI_STATUS\r | |
8b13229b | 569 | (EFIAPI *EFI_DHCP4_RENEW_REBIND)(\r |
d1f95000 | 570 | IN EFI_DHCP4_PROTOCOL *This,\r |
571 | IN BOOLEAN RebindRequest,\r | |
572 | IN EFI_EVENT CompletionEvent OPTIONAL\r | |
ed66e1bc | 573 | );\r |
d1f95000 | 574 | \r |
575 | /**\r | |
576 | Releases the current address configuration.\r | |
577 | \r | |
faac3f0c | 578 | The Release() function releases the current configured IP address by doing either\r |
579 | of the following:\r | |
580 | * Sending a DHCPRELEASE packet when the EFI DHCPv4 Protocol driver is in the\r | |
581 | Dhcp4Bound state\r | |
582 | * Setting the previously assigned IP address that was provided with the\r | |
583 | EFI_DHCP4_PROTOCOL.Configure() function to 0.0.0.0 when the driver is in\r | |
584 | Dhcp4InitReboot state\r | |
585 | After a successful call to this function, the EFI DHCPv4 Protocol driver returns\r | |
af2dc6a7 | 586 | to the Dhcp4Init state, and any subsequent incoming packets will be discarded silently.\r |
faac3f0c | 587 | \r |
af2dc6a7 | 588 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
d1f95000 | 589 | \r |
590 | @retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the Dhcp4Init phase.\r | |
591 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
592 | @retval EFI_ACCESS_DENIED The EFI DHCPv4 Protocol driver is not Dhcp4InitReboot state.\r | |
593 | @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r | |
594 | \r | |
595 | **/\r | |
305a1279 | 596 | typedef\r |
d1f95000 | 597 | EFI_STATUS\r |
8b13229b | 598 | (EFIAPI *EFI_DHCP4_RELEASE)(\r |
d1f95000 | 599 | IN EFI_DHCP4_PROTOCOL *This\r |
ed66e1bc | 600 | );\r |
d1f95000 | 601 | \r |
602 | /**\r | |
603 | Stops the current address configuration.\r | |
9095d37b | 604 | \r |
faac3f0c | 605 | The Stop() function is used to stop the DHCP configuration process. After this\r |
606 | function is called successfully, the EFI DHCPv4 Protocol driver is transferred\r | |
607 | into the Dhcp4Stopped state. EFI_DHCP4_PROTOCOL.Configure() needs to be called\r | |
608 | before DHCP configuration process can be started again. This function can be\r | |
609 | called when the EFI DHCPv4 Protocol driver is in any state.\r | |
d1f95000 | 610 | \r |
af2dc6a7 | 611 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
305a1279 | 612 | \r |
d1f95000 | 613 | @retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the Dhcp4Stopped phase.\r |
614 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
615 | \r | |
616 | **/\r | |
305a1279 | 617 | typedef\r |
d1f95000 | 618 | EFI_STATUS\r |
8b13229b | 619 | (EFIAPI *EFI_DHCP4_STOP)(\r |
d1f95000 | 620 | IN EFI_DHCP4_PROTOCOL *This\r |
ed66e1bc | 621 | );\r |
d1f95000 | 622 | \r |
623 | /**\r | |
624 | Builds a DHCP packet, given the options to be appended or deleted or replaced.\r | |
625 | \r | |
faac3f0c | 626 | The Build() function is used to assemble a new packet from the original packet\r |
627 | by replacing or deleting existing options or appending new options. This function\r | |
628 | does not change any state of the EFI DHCPv4 Protocol driver and can be used at\r | |
629 | any time.\r | |
630 | \r | |
af2dc6a7 | 631 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
eecd469b | 632 | @param SeedPacket Initial packet to be used as a base for building new packet.\r |
d1f95000 | 633 | @param DeleteCount Number of opcodes in the DeleteList.\r |
634 | @param DeleteList List of opcodes to be deleted from the seed packet.\r | |
635 | Ignored if DeleteCount is zero.\r | |
636 | @param AppendCount Number of entries in the OptionList.\r | |
af2dc6a7 | 637 | @param AppendList The pointer to a DHCP option list to be appended to SeedPacket.\r |
d1f95000 | 638 | If SeedPacket also contains options in this list, they are\r |
639 | replaced by new options (except pad option). Ignored if\r | |
640 | AppendCount is zero. Type EFI_DHCP4_PACKET_OPTION\r | |
af2dc6a7 | 641 | @param NewPacket The pointer to storage for the pointer to the new allocated packet.\r |
d1f95000 | 642 | Use the EFI Boot Service FreePool() on the resulting pointer\r |
643 | when done with the packet.\r | |
644 | \r | |
645 | @retval EFI_SUCCESS The new packet was built.\r | |
646 | @retval EFI_OUT_OF_RESOURCES Storage for the new packet could not be allocated.\r | |
74fec708 LG |
647 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
648 | This is NULL.\r | |
649 | SeedPacket is NULL.\r | |
650 | SeedPacket is not a well-formed DHCP packet.\r | |
651 | AppendCount is not zero and AppendList is NULL.\r | |
652 | DeleteCount is not zero and DeleteList is NULL.\r | |
653 | NewPacket is NULL\r | |
654 | Both DeleteCount and AppendCount are zero and\r | |
655 | NewPacket is not NULL.\r | |
d1f95000 | 656 | \r |
657 | **/\r | |
658 | typedef\r | |
659 | EFI_STATUS\r | |
8b13229b | 660 | (EFIAPI *EFI_DHCP4_BUILD)(\r |
d1f95000 | 661 | IN EFI_DHCP4_PROTOCOL *This,\r |
662 | IN EFI_DHCP4_PACKET *SeedPacket,\r | |
663 | IN UINT32 DeleteCount,\r | |
664 | IN UINT8 *DeleteList OPTIONAL,\r | |
665 | IN UINT32 AppendCount,\r | |
666 | IN EFI_DHCP4_PACKET_OPTION *AppendList[] OPTIONAL,\r | |
667 | OUT EFI_DHCP4_PACKET **NewPacket\r | |
ed66e1bc | 668 | );\r |
faac3f0c | 669 | \r |
d1f95000 | 670 | /**\r |
671 | Transmits a DHCP formatted packet and optionally waits for responses.\r | |
9095d37b | 672 | \r |
faac3f0c | 673 | The TransmitReceive() function is used to transmit a DHCP packet and optionally\r |
674 | wait for the response from servers. This function does not change the state of\r | |
af2dc6a7 | 675 | the EFI DHCPv4 Protocol driver. It can be used at any time because of this.\r |
d1f95000 | 676 | \r |
af2dc6a7 | 677 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
678 | @param Token The pointer to the EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN structure.\r | |
d1f95000 | 679 | \r |
680 | @retval EFI_SUCCESS The packet was successfully queued for transmission.\r | |
74fec708 LG |
681 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
682 | This is NULL.\r | |
683 | Token.RemoteAddress is zero.\r | |
684 | Token.Packet is NULL.\r | |
685 | Token.Packet is not a well-formed DHCP packet.\r | |
686 | The transaction ID in Token.Packet is in use by another DHCP process.\r | |
d1f95000 | 687 | @retval EFI_NOT_READY The previous call to this function has not finished yet. Try to call\r |
688 | this function after collection process completes.\r | |
689 | @retval EFI_NO_MAPPING The default station address is not available yet.\r | |
690 | @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.\r | |
ff7630cc | 691 | @retval EFI_UNSUPPORTED The implementation doesn't support this function\r |
d1f95000 | 692 | @retval Others Some other unexpected error occurred.\r |
693 | \r | |
694 | **/\r | |
305a1279 | 695 | typedef\r |
d1f95000 | 696 | EFI_STATUS\r |
8b13229b | 697 | (EFIAPI *EFI_DHCP4_TRANSMIT_RECEIVE)(\r |
d1f95000 | 698 | IN EFI_DHCP4_PROTOCOL *This,\r |
699 | IN EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN *Token\r | |
ed66e1bc | 700 | );\r |
d1f95000 | 701 | \r |
d1f95000 | 702 | /**\r |
703 | Parses the packed DHCP option data.\r | |
9095d37b | 704 | \r |
faac3f0c | 705 | The Parse() function is used to retrieve the option list from a DHCP packet.\r |
ff7630cc | 706 | If *OptionCount isn't zero, and there is enough space for all the DHCP options\r |
faac3f0c | 707 | in the Packet, each element of PacketOptionList is set to point to somewhere in\r |
708 | the Packet->Dhcp4.Option where a new DHCP option begins. If RFC3396 is supported,\r | |
630b4187 | 709 | the caller should reassemble the parsed DHCP options to get the final result.\r |
ff7630cc | 710 | If *OptionCount is zero or there isn't enough space for all of them, the number\r |
faac3f0c | 711 | of DHCP options in the Packet is returned in OptionCount.\r |
d1f95000 | 712 | \r |
af2dc6a7 | 713 | @param This The pointer to the EFI_DHCP4_PROTOCOL instance.\r |
714 | @param Packet The pointer to packet to be parsed.\r | |
d1f95000 | 715 | @param OptionCount On input, the number of entries in the PacketOptionList.\r |
716 | On output, the number of entries that were written into the\r | |
717 | PacketOptionList.\r | |
af2dc6a7 | 718 | @param PacketOptionList A list of packet option entries to be filled in. End option or pad\r |
d1f95000 | 719 | options are not included.\r |
720 | \r | |
721 | @retval EFI_SUCCESS The packet was successfully parsed.\r | |
74fec708 LG |
722 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r |
723 | This is NULL.\r | |
af2dc6a7 | 724 | The packet is NULL.\r |
725 | The packet is not a well-formed DHCP packet.\r | |
74fec708 | 726 | OptionCount is NULL.\r |
d1f95000 | 727 | @retval EFI_BUFFER_TOO_SMALL One or more of the following conditions is TRUE:\r |
728 | 1) *OptionCount is smaller than the number of options that\r | |
729 | were found in the Packet.\r | |
730 | 2) PacketOptionList is NULL.\r | |
af2dc6a7 | 731 | @retval EFI_OUT_OF_RESOURCE The packet failed to parse because of a resource shortage.\r |
d1f95000 | 732 | \r |
733 | **/\r | |
734 | typedef\r | |
735 | EFI_STATUS\r | |
8b13229b | 736 | (EFIAPI *EFI_DHCP4_PARSE)(\r |
d1f95000 | 737 | IN EFI_DHCP4_PROTOCOL *This,\r |
738 | IN EFI_DHCP4_PACKET *Packet,\r | |
739 | IN OUT UINT32 *OptionCount,\r | |
740 | OUT EFI_DHCP4_PACKET_OPTION *PacketOptionList[] OPTIONAL\r | |
ed66e1bc | 741 | );\r |
d1f95000 | 742 | \r |
44717a39 | 743 | ///\r |
744 | /// This protocol is used to collect configuration information for the EFI IPv4 Protocol drivers\r | |
745 | /// and to provide DHCPv4 server and PXE boot server discovery services.\r | |
746 | ///\r | |
d1f95000 | 747 | struct _EFI_DHCP4_PROTOCOL {\r |
2f88bd3a MK |
748 | EFI_DHCP4_GET_MODE_DATA GetModeData;\r |
749 | EFI_DHCP4_CONFIGURE Configure;\r | |
750 | EFI_DHCP4_START Start;\r | |
751 | EFI_DHCP4_RENEW_REBIND RenewRebind;\r | |
752 | EFI_DHCP4_RELEASE Release;\r | |
753 | EFI_DHCP4_STOP Stop;\r | |
754 | EFI_DHCP4_BUILD Build;\r | |
755 | EFI_DHCP4_TRANSMIT_RECEIVE TransmitReceive;\r | |
756 | EFI_DHCP4_PARSE Parse;\r | |
d1f95000 | 757 | };\r |
758 | \r | |
2f88bd3a MK |
759 | extern EFI_GUID gEfiDhcp4ProtocolGuid;\r |
760 | extern EFI_GUID gEfiDhcp4ServiceBindingProtocolGuid;\r | |
d1f95000 | 761 | \r |
762 | #endif\r |