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1 | /** @file \r | |
2 | EFI ARP Protocol Definition\r | |
3 | \r | |
4 | The EFI ARP Service Binding Protocol is used to locate EFI\r | |
5 | ARP Protocol drivers to create and destroy child of the\r | |
6 | driver to communicate with other host using ARP protocol.\r | |
7 | The EFI ARP Protocol provides services to map IP network\r | |
8 | address to hardware address used by a data link protocol.\r | |
9 | \r | |
10 | Copyright (c) 2006 - 2008, Intel Corporation.<BR> \r | |
11 | All rights reserved. This program and the accompanying materials \r | |
12 | are licensed and made available under the terms and conditions of the BSD License \r | |
13 | which accompanies this distribution. The full text of the license may be found at<BR> \r | |
14 | http://opensource.org/licenses/bsd-license.php \r | |
15 | \r | |
16 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
17 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
18 | \r | |
19 | **/\r | |
20 | \r | |
21 | #ifndef __EFI_ARP_PROTOCOL_H__\r | |
22 | #define __EFI_ARP_PROTOCOL_H__\r | |
23 | \r | |
24 | #define EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID \\r | |
25 | { \\r | |
26 | 0xf44c00ee, 0x1f2c, 0x4a00, {0xaa, 0x9, 0x1c, 0x9f, 0x3e, 0x8, 0x0, 0xa3 } \\r | |
27 | }\r | |
28 | \r | |
29 | #define EFI_ARP_PROTOCOL_GUID \\r | |
30 | { \\r | |
31 | 0xf4b427bb, 0xba21, 0x4f16, {0xbc, 0x4e, 0x43, 0xe4, 0x16, 0xab, 0x61, 0x9c } \\r | |
32 | }\r | |
33 | \r | |
34 | typedef struct _EFI_ARP_PROTOCOL EFI_ARP_PROTOCOL;\r | |
35 | \r | |
36 | typedef struct {\r | |
37 | ///\r | |
38 | /// Length in bytes of this entry.\r | |
39 | ///\r | |
40 | UINT32 Size;\r | |
41 | \r | |
42 | ///\r | |
43 | /// Set to TRUE if this entry is a "deny" entry.\r | |
44 | /// Set to FALSE if this entry is a "normal" entry.\r | |
45 | ///\r | |
46 | BOOLEAN DenyFlag;\r | |
47 | \r | |
48 | ///\r | |
49 | /// Set to TRUE if this entry will not time out.\r | |
50 | /// Set to FALSE if this entry will time out.\r | |
51 | ///\r | |
52 | BOOLEAN StaticFlag;\r | |
53 | \r | |
54 | ///\r | |
55 | /// 16-bit ARP hardware identifier number.\r | |
56 | ///\r | |
57 | UINT16 HwAddressType;\r | |
58 | \r | |
59 | ///\r | |
60 | /// 16-bit protocol type number.\r | |
61 | ///\r | |
62 | UINT16 SwAddressType;\r | |
63 | \r | |
64 | ///\r | |
65 | /// Length of the hardware address.\r | |
66 | ///\r | |
67 | UINT8 HwAddressLength;\r | |
68 | \r | |
69 | ///\r | |
70 | /// Length of the protocol address.\r | |
71 | ///\r | |
72 | UINT8 SwAddressLength;\r | |
73 | } EFI_ARP_FIND_DATA;\r | |
74 | \r | |
75 | typedef struct {\r | |
76 | ///\r | |
77 | /// 16-bit protocol type number in host byte order.\r | |
78 | ///\r | |
79 | UINT16 SwAddressType;\r | |
80 | \r | |
81 | ///\r | |
82 | /// Length in bytes of the station's protocol address to register.\r | |
83 | ///\r | |
84 | UINT8 SwAddressLength;\r | |
85 | \r | |
86 | ///\r | |
87 | /// Pointer to the first byte of the protocol address to register. For\r | |
88 | /// example, if SwAddressType is 0x0800 (IP), then\r | |
89 | /// StationAddress points to the first byte of this station's IP\r | |
90 | /// address stored in network byte order.\r | |
91 | ///\r | |
92 | VOID *StationAddress;\r | |
93 | \r | |
94 | ///\r | |
95 | /// The timeout value in 100-ns units that is associated with each\r | |
96 | /// new dynamic ARP cache entry. If it is set to zero, the value is\r | |
97 | /// implementation-specific.\r | |
98 | ///\r | |
99 | UINT32 EntryTimeOut;\r | |
100 | \r | |
101 | ///\r | |
102 | /// The number of retries before a MAC address is resolved. If it is\r | |
103 | /// set to zero, the value is implementation-specific.\r | |
104 | ///\r | |
105 | UINT32 RetryCount;\r | |
106 | \r | |
107 | ///\r | |
108 | /// The timeout value in 100-ns units that is used to wait for the ARP\r | |
109 | /// reply packet or the timeout value between two retries. Set to zero\r | |
110 | /// to use implementation-specific value.\r | |
111 | ///\r | |
112 | UINT32 RetryTimeOut;\r | |
113 | } EFI_ARP_CONFIG_DATA;\r | |
114 | \r | |
115 | \r | |
116 | /**\r | |
117 | This function is used to assign a station address to the ARP cache for this instance\r | |
118 | of the ARP driver.\r | |
119 | \r | |
120 | Each ARP instance has one station address. The EFI_ARP_PROTOCOL driver will \r | |
121 | respond to ARP requests that match this registered station address. A call to \r | |
122 | this function with the ConfigData field set to NULL will reset this ARP instance.\r | |
123 | \r | |
124 | Once a protocol type and station address have been assigned to this ARP instance, \r | |
125 | all the following ARP functions will use this information. Attempting to change \r | |
126 | the protocol type or station address to a configured ARP instance will result in errors.\r | |
127 | \r | |
128 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
129 | @param ConfigData Pointer to the EFI_ARP_CONFIG_DATA structure.\r | |
130 | \r | |
131 | @retval EFI_SUCCESS The new station address was successfully\r | |
132 | registered.\r | |
133 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
134 | * This is NULL. \r | |
135 | * SwAddressLength is zero when ConfigData is not NULL. \r | |
136 | * StationAddress is NULL when ConfigData is not NULL.\r | |
137 | @retval EFI_ACCESS_DENIED The SwAddressType, SwAddressLength, or\r | |
138 | StationAddress is different from the one that is\r | |
139 | already registered.\r | |
140 | @retval EFI_OUT_OF_RESOURCES Storage for the new StationAddress could not be\r | |
141 | allocated.\r | |
142 | \r | |
143 | **/\r | |
144 | typedef \r | |
145 | EFI_STATUS\r | |
146 | (EFIAPI *EFI_ARP_CONFIGURE)(\r | |
147 | IN EFI_ARP_PROTOCOL *This,\r | |
148 | IN EFI_ARP_CONFIG_DATA *ConfigData OPTIONAL\r | |
149 | ); \r | |
150 | \r | |
151 | /**\r | |
152 | This function is used to insert entries into the ARP cache.\r | |
153 | \r | |
154 | ARP cache entries are typically inserted and updated by network protocol drivers \r | |
155 | as network traffic is processed. Most ARP cache entries will time out and be \r | |
156 | deleted if the network traffic stops. ARP cache entries that were inserted \r | |
157 | by the Add() function may be static (will not time out) or dynamic (will time out).\r | |
158 | Default ARP cache timeout values are not covered in most network protocol \r | |
159 | specifications (although RFC 1122 comes pretty close) and will only be \r | |
160 | discussed in general in this specification. The timeout values that are \r | |
161 | used in the EFI Sample Implementation should be used only as a guideline. \r | |
162 | Final product implementations of the EFI network stack should be tuned for \r | |
163 | their expected network environments.\r | |
164 | \r | |
165 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
166 | @param DenyFlag Set to TRUE if this entry is a deny entry. Set to\r | |
167 | FALSE if this entry is a normal entry.\r | |
168 | @param TargetSwAddress Pointer to a protocol address to add (or deny).\r | |
169 | May be set to NULL if DenyFlag is TRUE.\r | |
170 | @param TargetHwAddress Pointer to a hardware address to add (or deny).\r | |
171 | May be set to NULL if DenyFlag is TRUE.\r | |
172 | @param TimeoutValue Time in 100-ns units that this entry will remain\r | |
173 | in the ARP cache. A value of zero means that the\r | |
174 | entry is permanent. A nonzero value will override\r | |
175 | the one given by Configure() if the entry to be\r | |
176 | added is a dynamic entry.\r | |
177 | @param Overwrite If TRUE, the matching cache entry will be\r | |
178 | overwritten with the supplied parameters. If\r | |
179 | FALSE, EFI_ACCESS_DENIED is returned if the\r | |
180 | corresponding cache entry already exists.\r | |
181 | \r | |
182 | @retval EFI_SUCCESS The entry has been added or updated.\r | |
183 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
184 | * This is NULL. \r | |
185 | * DenyFlag is FALSE and TargetHwAddress is NULL. \r | |
186 | * DenyFlag is FALSE and TargetSwAddress is NULL. \r | |
187 | * TargetHwAddress is NULL and TargetSwAddress is NULL. \r | |
188 | * Neither TargetSwAddress nor TargetHwAddress are NULL when DenyFlag is\r | |
189 | TRUE.\r | |
190 | @retval EFI_OUT_OF_RESOURCES The new ARP cache entry could not be allocated.\r | |
191 | @retval EFI_ACCESS_DENIED The ARP cache entry already exists and Overwrite\r | |
192 | is not true.\r | |
193 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r | |
194 | \r | |
195 | **/\r | |
196 | typedef\r | |
197 | EFI_STATUS\r | |
198 | (EFIAPI *EFI_ARP_ADD)(\r | |
199 | IN EFI_ARP_PROTOCOL *This,\r | |
200 | IN BOOLEAN DenyFlag,\r | |
201 | IN VOID *TargetSwAddress OPTIONAL,\r | |
202 | IN VOID *TargetHwAddress OPTIONAL,\r | |
203 | IN UINT32 TimeoutValue,\r | |
204 | IN BOOLEAN Overwrite\r | |
205 | ); \r | |
206 | \r | |
207 | /**\r | |
208 | This function searches the ARP cache for matching entries and allocates a buffer into\r | |
209 | which those entries are copied.\r | |
210 | \r | |
211 | The first part of the allocated buffer is EFI_ARP_FIND_DATA, following which \r | |
212 | are protocol address pairs and hardware address pairs.\r | |
213 | When finding a specific protocol address (BySwAddress is TRUE and AddressBuffer \r | |
214 | is not NULL), the ARP cache timeout for the found entry is reset if Refresh is \r | |
215 | set to TRUE. If the found ARP cache entry is a permanent entry, it is not \r | |
216 | affected by Refresh.\r | |
217 | \r | |
218 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
219 | @param BySwAddress Set to TRUE to look for matching software protocol\r | |
220 | addresses. Set to FALSE to look for matching\r | |
221 | hardware protocol addresses.\r | |
222 | @param AddressBuffer Pointer to address buffer. Set to NULL to match\r | |
223 | all addresses.\r | |
224 | @param EntryLength The size of an entry in the entries buffer.\r | |
225 | @param EntryCount The number of ARP cache entries that are found by\r | |
226 | the specified criteria.\r | |
227 | @param Entries Pointer to the buffer that will receive the ARP\r | |
228 | cache entries.\r | |
229 | @param Refresh Set to TRUE to refresh the timeout value of the\r | |
230 | matching ARP cache entry.\r | |
231 | \r | |
232 | @retval EFI_SUCCESS The requested ARP cache entries were copied into\r | |
233 | the buffer.\r | |
234 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
235 | This is NULL. Both EntryCount and EntryLength are\r | |
236 | NULL, when Refresh is FALSE.\r | |
237 | @retval EFI_NOT_FOUND No matching entries were found.\r | |
238 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r | |
239 | \r | |
240 | **/\r | |
241 | typedef \r | |
242 | EFI_STATUS\r | |
243 | (EFIAPI *EFI_ARP_FIND)(\r | |
244 | IN EFI_ARP_PROTOCOL *This,\r | |
245 | IN BOOLEAN BySwAddress,\r | |
246 | IN VOID *AddressBuffer OPTIONAL,\r | |
247 | OUT UINT32 *EntryLength OPTIONAL,\r | |
248 | OUT UINT32 *EntryCount OPTIONAL,\r | |
249 | OUT EFI_ARP_FIND_DATA **Entries OPTIONAL,\r | |
250 | IN BOOLEAN Refresh\r | |
251 | ); \r | |
252 | \r | |
253 | \r | |
254 | /**\r | |
255 | This function removes specified ARP cache entries.\r | |
256 | \r | |
257 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
258 | @param BySwAddress Set to TRUE to delete matching protocol addresses.\r | |
259 | Set to FALSE to delete matching hardware\r | |
260 | addresses.\r | |
261 | @param AddressBuffer Pointer to the address buffer that is used as a\r | |
262 | key to look for the cache entry. Set to NULL to\r | |
263 | delete all entries.\r | |
264 | \r | |
265 | @retval EFI_SUCCESS The entry was removed from the ARP cache.\r | |
266 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
267 | @retval EFI_NOT_FOUND The specified deletion key was not found.\r | |
268 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r | |
269 | \r | |
270 | **/\r | |
271 | typedef\r | |
272 | EFI_STATUS\r | |
273 | (EFIAPI *EFI_ARP_DELETE)(\r | |
274 | IN EFI_ARP_PROTOCOL *This,\r | |
275 | IN BOOLEAN BySwAddress,\r | |
276 | IN VOID *AddressBuffer OPTIONAL\r | |
277 | ); \r | |
278 | \r | |
279 | /**\r | |
280 | This function delete all dynamic entries from the ARP cache that match the specified\r | |
281 | software protocol type.\r | |
282 | \r | |
283 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
284 | \r | |
285 | @retval EFI_SUCCESS The cache has been flushed.\r | |
286 | @retval EFI_INVALID_PARAMETER This is NULL.\r | |
287 | @retval EFI_NOT_FOUND There are no matching dynamic cache entries.\r | |
288 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r | |
289 | \r | |
290 | **/\r | |
291 | typedef\r | |
292 | EFI_STATUS\r | |
293 | (EFIAPI *EFI_ARP_FLUSH)(\r | |
294 | IN EFI_ARP_PROTOCOL *This\r | |
295 | ); \r | |
296 | \r | |
297 | /**\r | |
298 | This function tries to resolve the TargetSwAddress and optionally returns a\r | |
299 | TargetHwAddress if it already exists in the ARP cache.\r | |
300 | \r | |
301 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
302 | @param TargetSwAddress Pointer to the protocol address to resolve.\r | |
303 | @param ResolvedEvent Pointer to the event that will be signaled when\r | |
304 | the address is resolved or some error occurs.\r | |
305 | @param TargetHwAddress Pointer to the buffer for the resolved hardware\r | |
306 | address in network byte order.\r | |
307 | \r | |
308 | @retval EFI_SUCCESS The data is copied from the ARP cache into the\r | |
309 | TargetHwAddress buffer.\r | |
310 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
311 | This is NULL. TargetHwAddress is NULL.\r | |
312 | @retval EFI_ACCESS_DENIED The requested address is not present in the normal\r | |
313 | ARP cache but is present in the deny address list.\r | |
314 | Outgoing traffic to that address is forbidden.\r | |
315 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r | |
316 | @retval EFI_NOT_READY The request has been started and is not finished.\r | |
317 | \r | |
318 | **/\r | |
319 | typedef\r | |
320 | EFI_STATUS\r | |
321 | (EFIAPI *EFI_ARP_REQUEST)(\r | |
322 | IN EFI_ARP_PROTOCOL *This, \r | |
323 | IN VOID *TargetSwAddress OPTIONAL,\r | |
324 | IN EFI_EVENT ResolvedEvent OPTIONAL,\r | |
325 | OUT VOID *TargetHwAddress \r | |
326 | ); \r | |
327 | \r | |
328 | /**\r | |
329 | This function aborts the previous ARP request (identified by This, TargetSwAddress\r | |
330 | and ResolvedEvent) that is issued by EFI_ARP_PROTOCOL.Request().\r | |
331 | \r | |
332 | If the request is in the internal ARP request queue, the request is aborted \r | |
333 | immediately and its ResolvedEvent is signaled. Only an asynchronous address \r | |
334 | request needs to be canceled. If TargeSwAddress and ResolveEvent are both \r | |
335 | NULL, all the pending asynchronous requests that have been issued by This \r | |
336 | instance will be cancelled and their corresponding events will be signaled.\r | |
337 | \r | |
338 | @param This Pointer to the EFI_ARP_PROTOCOL instance.\r | |
339 | @param TargetSwAddress Pointer to the protocol address in previous\r | |
340 | request session.\r | |
341 | @param ResolvedEvent Pointer to the event that is used as the\r | |
342 | notification event in previous request session.\r | |
343 | \r | |
344 | @retval EFI_SUCCESS The pending request session(s) is/are aborted and\r | |
345 | corresponding event(s) is/are signaled.\r | |
346 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
347 | This is NULL. TargetSwAddress is not NULL and\r | |
348 | ResolvedEvent is NULL. TargetSwAddress is NULL and\r | |
349 | ResolvedEvent is not NULL.\r | |
350 | @retval EFI_NOT_STARTED The ARP driver instance has not been configured.\r | |
351 | @retval EFI_NOT_FOUND The request is not issued by\r | |
352 | EFI_ARP_PROTOCOL.Request().\r | |
353 | \r | |
354 | \r | |
355 | **/\r | |
356 | typedef\r | |
357 | EFI_STATUS\r | |
358 | (EFIAPI *EFI_ARP_CANCEL)(\r | |
359 | IN EFI_ARP_PROTOCOL *This, \r | |
360 | IN VOID *TargetSwAddress OPTIONAL,\r | |
361 | IN EFI_EVENT ResolvedEvent OPTIONAL\r | |
362 | ); \r | |
363 | \r | |
364 | ///\r | |
365 | /// ARP is used to resolve local network protocol addresses into \r | |
366 | /// network hardware addresses.\r | |
367 | ///\r | |
368 | struct _EFI_ARP_PROTOCOL {\r | |
369 | EFI_ARP_CONFIGURE Configure;\r | |
370 | EFI_ARP_ADD Add;\r | |
371 | EFI_ARP_FIND Find;\r | |
372 | EFI_ARP_DELETE Delete;\r | |
373 | EFI_ARP_FLUSH Flush;\r | |
374 | EFI_ARP_REQUEST Request;\r | |
375 | EFI_ARP_CANCEL Cancel;\r | |
376 | };\r | |
377 | \r | |
378 | \r | |
379 | extern EFI_GUID gEfiArpServiceBindingProtocolGuid;\r | |
380 | extern EFI_GUID gEfiArpProtocolGuid;\r | |
381 | \r | |
382 | #endif\r |