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28db6da4 | 1 | /** @file\r |
2 | Copyright (c) 2004 - 2007, Intel Corporation\r | |
3 | All rights reserved. This program and the accompanying materials\r | |
4 | are licensed and made available under the terms and conditions of the BSD License\r | |
5 | which accompanies this distribution. The full text of the license may be found at\r | |
6 | http://opensource.org/licenses/bsd-license.php\r | |
7 | \r | |
8 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
9 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
10 | \r | |
11 | Module name:\r | |
12 | receive_filters.c\r | |
13 | \r | |
14 | Abstract:\r | |
15 | \r | |
16 | Revision history:\r | |
17 | 2000-Feb-17 M(f)J Genesis.\r | |
18 | \r | |
19 | **/\r | |
20 | \r | |
21 | \r | |
22 | \r | |
23 | #include "Snp.h"\r | |
24 | \r | |
25 | /**\r | |
26 | this routine calls undi to enable the receive filters.\r | |
27 | \r | |
4cda7726 | 28 | @param Snp pointer to snp driver structure\r |
28db6da4 | 29 | @param EnableFlags bit mask for enabling the receive filters\r |
30 | @param MCastAddressCount multicast address count for a new multicast address\r | |
31 | list\r | |
32 | @param MCastAddressList list of new multicast addresses\r | |
33 | \r | |
34 | \r | |
35 | **/\r | |
28db6da4 | 36 | EFI_STATUS\r |
4cda7726 | 37 | PxeRecvFilterEnable (\r |
38 | SNP_DRIVER *Snp,\r | |
28db6da4 | 39 | UINT32 EnableFlags,\r |
40 | UINTN MCastAddressCount,\r | |
41 | EFI_MAC_ADDRESS *MCastAddressList\r | |
42 | )\r | |
43 | {\r | |
4cda7726 | 44 | Snp->Cdb.OpCode = PXE_OPCODE_RECEIVE_FILTERS;\r |
45 | Snp->Cdb.OpFlags = PXE_OPFLAGS_RECEIVE_FILTER_ENABLE;\r | |
46 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r | |
47 | Snp->Cdb.DBsize = PXE_DBSIZE_NOT_USED;\r | |
48 | Snp->Cdb.CPBaddr = PXE_CPBADDR_NOT_USED;\r | |
49 | Snp->Cdb.DBaddr = PXE_DBADDR_NOT_USED;\r | |
50 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
51 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
52 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
53 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
28db6da4 | 54 | \r |
55 | if ((EnableFlags & EFI_SIMPLE_NETWORK_RECEIVE_UNICAST) != 0) {\r | |
4cda7726 | 56 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_UNICAST;\r |
28db6da4 | 57 | }\r |
58 | \r | |
59 | if ((EnableFlags & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST) != 0) {\r | |
4cda7726 | 60 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST;\r |
28db6da4 | 61 | }\r |
62 | \r | |
63 | if ((EnableFlags & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) != 0) {\r | |
4cda7726 | 64 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS;\r |
28db6da4 | 65 | }\r |
66 | \r | |
67 | if ((EnableFlags & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) != 0) {\r | |
4cda7726 | 68 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST;\r |
28db6da4 | 69 | }\r |
70 | \r | |
71 | if ((EnableFlags & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0) {\r | |
4cda7726 | 72 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST;\r |
28db6da4 | 73 | }\r |
74 | \r | |
75 | if (MCastAddressCount != 0) {\r | |
4cda7726 | 76 | Snp->Cdb.CPBsize = (UINT16) (MCastAddressCount * sizeof (EFI_MAC_ADDRESS));\r |
77 | Snp->Cdb.CPBaddr = (UINT64)(UINTN)Snp->Cpb;\r | |
78 | CopyMem (Snp->Cpb, MCastAddressList, Snp->Cdb.CPBsize);\r | |
28db6da4 | 79 | }\r |
80 | //\r | |
81 | // Issue UNDI command and check result.\r | |
82 | //\r | |
83 | DEBUG ((EFI_D_NET, "\nsnp->undi.receive_filters() "));\r | |
84 | \r | |
4cda7726 | 85 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
28db6da4 | 86 | \r |
4cda7726 | 87 | if (Snp->Cdb.StatCode != EFI_SUCCESS) {\r |
28db6da4 | 88 | //\r |
89 | // UNDI command failed. Return UNDI status to caller.\r | |
90 | //\r | |
91 | DEBUG (\r | |
92 | (EFI_D_ERROR,\r | |
93 | "\nsnp->undi.receive_filters() %xh:%xh\n",\r | |
4cda7726 | 94 | Snp->Cdb.StatFlags,\r |
95 | Snp->Cdb.StatCode)\r | |
28db6da4 | 96 | );\r |
97 | \r | |
4cda7726 | 98 | switch (Snp->Cdb.StatCode) {\r |
28db6da4 | 99 | case PXE_STATCODE_INVALID_CDB:\r |
100 | case PXE_STATCODE_INVALID_CPB:\r | |
101 | case PXE_STATCODE_INVALID_PARAMETER:\r | |
102 | return EFI_INVALID_PARAMETER;\r | |
103 | \r | |
104 | case PXE_STATCODE_UNSUPPORTED:\r | |
105 | return EFI_UNSUPPORTED;\r | |
106 | }\r | |
107 | \r | |
108 | return EFI_DEVICE_ERROR;\r | |
109 | }\r | |
110 | \r | |
111 | return EFI_SUCCESS;\r | |
112 | }\r | |
113 | \r | |
114 | /**\r | |
115 | this routine calls undi to disable the receive filters.\r | |
116 | \r | |
4cda7726 | 117 | @param Snp pointer to snp driver structure\r |
28db6da4 | 118 | @param DisableFlags bit mask for disabling the receive filters\r |
119 | @param ResetMCastList boolean flag to reset/delete the multicast filter list\r | |
120 | \r | |
121 | \r | |
122 | **/\r | |
28db6da4 | 123 | EFI_STATUS\r |
4cda7726 | 124 | PxeRecvFilterDisable (\r |
125 | SNP_DRIVER *Snp,\r | |
28db6da4 | 126 | UINT32 DisableFlags,\r |
127 | BOOLEAN ResetMCastList\r | |
128 | )\r | |
129 | {\r | |
4cda7726 | 130 | Snp->Cdb.OpCode = PXE_OPCODE_RECEIVE_FILTERS;\r |
131 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r | |
132 | Snp->Cdb.DBsize = PXE_DBSIZE_NOT_USED;\r | |
133 | Snp->Cdb.CPBaddr = PXE_CPBADDR_NOT_USED;\r | |
134 | Snp->Cdb.DBaddr = PXE_DBADDR_NOT_USED;\r | |
135 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r | |
136 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
137 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
138 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
139 | \r | |
140 | Snp->Cdb.OpFlags = (UINT16) ((DisableFlags != 0) ? PXE_OPFLAGS_RECEIVE_FILTER_DISABLE : PXE_OPFLAGS_NOT_USED);\r | |
28db6da4 | 141 | \r |
142 | if (ResetMCastList) {\r | |
4cda7726 | 143 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_RESET_MCAST_LIST;\r |
28db6da4 | 144 | }\r |
145 | \r | |
146 | if ((DisableFlags & EFI_SIMPLE_NETWORK_RECEIVE_UNICAST) != 0) {\r | |
4cda7726 | 147 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_UNICAST;\r |
28db6da4 | 148 | }\r |
149 | \r | |
150 | if ((DisableFlags & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST) != 0) {\r | |
4cda7726 | 151 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST;\r |
28db6da4 | 152 | }\r |
153 | \r | |
154 | if ((DisableFlags & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) != 0) {\r | |
4cda7726 | 155 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS;\r |
28db6da4 | 156 | }\r |
157 | \r | |
158 | if ((DisableFlags & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) != 0) {\r | |
4cda7726 | 159 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST;\r |
28db6da4 | 160 | }\r |
161 | \r | |
162 | if ((DisableFlags & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0) {\r | |
4cda7726 | 163 | Snp->Cdb.OpFlags |= PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST;\r |
28db6da4 | 164 | }\r |
165 | //\r | |
166 | // Issue UNDI command and check result.\r | |
167 | //\r | |
168 | DEBUG ((EFI_D_NET, "\nsnp->undi.receive_filters() "));\r | |
169 | \r | |
4cda7726 | 170 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
28db6da4 | 171 | \r |
4cda7726 | 172 | if (Snp->Cdb.StatCode != EFI_SUCCESS) {\r |
28db6da4 | 173 | //\r |
174 | // UNDI command failed. Return UNDI status to caller.\r | |
175 | //\r | |
176 | DEBUG (\r | |
177 | (EFI_D_ERROR,\r | |
178 | "\nsnp->undi.receive_filters() %xh:%xh\n",\r | |
4cda7726 | 179 | Snp->Cdb.StatFlags,\r |
180 | Snp->Cdb.StatCode)\r | |
28db6da4 | 181 | );\r |
182 | \r | |
183 | return EFI_DEVICE_ERROR;\r | |
184 | }\r | |
185 | \r | |
186 | return EFI_SUCCESS;\r | |
187 | }\r | |
188 | \r | |
189 | /**\r | |
190 | this routine calls undi to read the receive filters.\r | |
191 | \r | |
4cda7726 | 192 | @param Snp pointer to snp driver structure\r |
28db6da4 | 193 | \r |
194 | \r | |
195 | **/\r | |
28db6da4 | 196 | EFI_STATUS\r |
4cda7726 | 197 | PxeRecvFilterRead (\r |
198 | SNP_DRIVER *Snp\r | |
28db6da4 | 199 | )\r |
200 | {\r | |
4cda7726 | 201 | Snp->Cdb.OpCode = PXE_OPCODE_RECEIVE_FILTERS;\r |
202 | Snp->Cdb.OpFlags = PXE_OPFLAGS_RECEIVE_FILTER_READ;\r | |
203 | Snp->Cdb.CPBsize = PXE_CPBSIZE_NOT_USED;\r | |
204 | Snp->Cdb.DBsize = (UINT16) (Snp->Mode.MaxMCastFilterCount * sizeof (EFI_MAC_ADDRESS));\r | |
205 | Snp->Cdb.CPBaddr = PXE_CPBADDR_NOT_USED;\r | |
206 | if (Snp->Cdb.DBsize == 0) {\r | |
207 | Snp->Cdb.DBaddr = (UINT64)(UINTN) NULL;\r | |
28db6da4 | 208 | } else {\r |
4cda7726 | 209 | Snp->Cdb.DBaddr = (UINT64)(UINTN) Snp->Db;\r |
210 | ZeroMem (Snp->Db, Snp->Cdb.DBsize);\r | |
28db6da4 | 211 | }\r |
212 | \r | |
4cda7726 | 213 | Snp->Cdb.StatCode = PXE_STATCODE_INITIALIZE;\r |
214 | Snp->Cdb.StatFlags = PXE_STATFLAGS_INITIALIZE;\r | |
215 | Snp->Cdb.IFnum = Snp->IfNum;\r | |
216 | Snp->Cdb.Control = PXE_CONTROL_LAST_CDB_IN_LIST;\r | |
28db6da4 | 217 | \r |
218 | DEBUG ((EFI_D_NET, "\nsnp->undi.receive_filters() "));\r | |
219 | \r | |
4cda7726 | 220 | (*Snp->IssueUndi32Command) ((UINT64)(UINTN) &Snp->Cdb);\r |
28db6da4 | 221 | \r |
4cda7726 | 222 | if (Snp->Cdb.StatCode != EFI_SUCCESS) {\r |
28db6da4 | 223 | //\r |
224 | // UNDI command failed. Return UNDI status to caller.\r | |
225 | //\r | |
226 | DEBUG (\r | |
227 | (EFI_D_ERROR,\r | |
228 | "\nsnp->undi.receive_filters() %xh:%xh\n",\r | |
4cda7726 | 229 | Snp->Cdb.StatFlags,\r |
230 | Snp->Cdb.StatCode)\r | |
28db6da4 | 231 | );\r |
232 | \r | |
233 | return EFI_DEVICE_ERROR;\r | |
234 | }\r | |
235 | //\r | |
236 | // Convert UNDI32 StatFlags to EFI SNP filter flags.\r | |
237 | //\r | |
4cda7726 | 238 | Snp->Mode.ReceiveFilterSetting = 0;\r |
28db6da4 | 239 | \r |
4cda7726 | 240 | if ((Snp->Cdb.StatFlags & PXE_STATFLAGS_RECEIVE_FILTER_UNICAST) != 0) {\r |
241 | Snp->Mode.ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_UNICAST;\r | |
28db6da4 | 242 | }\r |
243 | \r | |
4cda7726 | 244 | if ((Snp->Cdb.StatFlags & PXE_STATFLAGS_RECEIVE_FILTER_BROADCAST) != 0) {\r |
245 | Snp->Mode.ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;\r | |
28db6da4 | 246 | }\r |
247 | \r | |
4cda7726 | 248 | if ((Snp->Cdb.StatFlags & PXE_STATFLAGS_RECEIVE_FILTER_PROMISCUOUS) != 0) {\r |
249 | Snp->Mode.ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r | |
28db6da4 | 250 | }\r |
251 | \r | |
4cda7726 | 252 | if ((Snp->Cdb.StatFlags & PXE_STATFLAGS_RECEIVE_FILTER_ALL_MULTICAST) != 0) {\r |
253 | Snp->Mode.ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
28db6da4 | 254 | }\r |
255 | \r | |
4cda7726 | 256 | if ((Snp->Cdb.StatFlags & PXE_STATFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST) != 0) {\r |
257 | Snp->Mode.ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST;\r | |
28db6da4 | 258 | }\r |
259 | \r | |
4cda7726 | 260 | CopyMem (Snp->Mode.MCastFilter, Snp->Db, Snp->Cdb.DBsize);\r |
28db6da4 | 261 | \r |
262 | //\r | |
263 | // Count number of active entries in multicast filter list.\r | |
264 | //\r | |
265 | {\r | |
266 | EFI_MAC_ADDRESS ZeroMacAddr;\r | |
267 | \r | |
268 | SetMem (&ZeroMacAddr, sizeof ZeroMacAddr, 0);\r | |
269 | \r | |
4cda7726 | 270 | for (Snp->Mode.MCastFilterCount = 0;\r |
271 | Snp->Mode.MCastFilterCount < Snp->Mode.MaxMCastFilterCount;\r | |
272 | Snp->Mode.MCastFilterCount++\r | |
28db6da4 | 273 | ) {\r |
274 | if (CompareMem (\r | |
4cda7726 | 275 | &Snp->Mode.MCastFilter[Snp->Mode.MCastFilterCount],\r |
28db6da4 | 276 | &ZeroMacAddr,\r |
277 | sizeof ZeroMacAddr\r | |
278 | ) == 0) {\r | |
279 | break;\r | |
280 | }\r | |
281 | }\r | |
282 | }\r | |
283 | \r | |
284 | return EFI_SUCCESS;\r | |
285 | }\r | |
286 | \r | |
287 | \r | |
288 | /**\r | |
4cda7726 | 289 | Manages the multicast receive filters of a network interface.\r |
290 | \r | |
291 | This function is used enable and disable the hardware and software receive \r | |
292 | filters for the underlying network device.\r | |
293 | The receive filter change is broken down into three steps: \r | |
294 | * The filter mask bits that are set (ON) in the Enable parameter are added to \r | |
295 | the current receive filter settings. \r | |
296 | * The filter mask bits that are set (ON) in the Disable parameter are subtracted\r | |
297 | from the updated receive filter settings.\r | |
298 | * If the resulting receive filter setting is not supported by the hardware a\r | |
299 | more liberal setting is selected.\r | |
300 | If the same bits are set in the Enable and Disable parameters, then the bits \r | |
301 | in the Disable parameter takes precedence.\r | |
302 | If the ResetMCastFilter parameter is TRUE, then the multicast address list \r | |
303 | filter is disabled (irregardless of what other multicast bits are set in the \r | |
304 | Enable and Disable parameters). The SNP->Mode->MCastFilterCount field is set \r | |
305 | to zero. The Snp->Mode->MCastFilter contents are undefined.\r | |
306 | After enabling or disabling receive filter settings, software should verify \r | |
307 | the new settings by checking the Snp->Mode->ReceiveFilterSettings, \r | |
308 | Snp->Mode->MCastFilterCount and Snp->Mode->MCastFilter fields.\r | |
309 | Note: Some network drivers and/or devices will automatically promote receive \r | |
310 | filter settings if the requested setting can not be honored. For example, if\r | |
311 | a request for four multicast addresses is made and the underlying hardware \r | |
312 | only supports two multicast addresses the driver might set the promiscuous \r | |
313 | or promiscuous multicast receive filters instead. The receiving software is\r | |
314 | responsible for discarding any extra packets that get through the hardware \r | |
315 | receive filters.\r | |
316 | Note: Note: To disable all receive filter hardware, the network driver must \r | |
317 | be Shutdown() and Stopped(). Calling ReceiveFilters() with Disable set to\r | |
318 | Snp->Mode->ReceiveFilterSettings will make it so no more packets are \r | |
319 | returned by the Receive() function, but the receive hardware may still be \r | |
320 | moving packets into system memory before inspecting and discarding them.\r | |
321 | Unexpected system errors, reboots and hangs can occur if an OS is loaded \r | |
322 | and the network devices are not Shutdown() and Stopped().\r | |
323 | If ResetMCastFilter is TRUE, then the multicast receive filter list on the \r | |
324 | network interface will be reset to the default multicast receive filter list.\r | |
325 | If ResetMCastFilter is FALSE, and this network interface allows the multicast \r | |
326 | receive filter list to be modified, then the MCastFilterCnt and MCastFilter \r | |
327 | are used to update the current multicast receive filter list. The modified \r | |
328 | receive filter list settings can be found in the MCastFilter field of \r | |
329 | EFI_SIMPLE_NETWORK_MODE. If the network interface does not allow the multicast\r | |
330 | receive filter list to be modified, then EFI_INVALID_PARAMETER will be returned.\r | |
331 | If the driver has not been initialized, EFI_DEVICE_ERROR will be returned.\r | |
332 | If the receive filter mask and multicast receive filter list have been \r | |
333 | successfully updated on the network interface, EFI_SUCCESS will be returned.\r | |
334 | \r | |
335 | @param This A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
336 | @param Enable A bit mask of receive filters to enable on the network\r | |
337 | interface.\r | |
338 | @param Disable A bit mask of receive filters to disable on the network\r | |
339 | interface. For backward compatibility with EFI 1.1 \r | |
340 | platforms, the EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit\r | |
341 | must be set when the ResetMCastFilter parameter is TRUE.\r | |
342 | @param ResetMCastFilter Set to TRUE to reset the contents of the multicast \r | |
343 | receive filters on the network interface to their \r | |
344 | default values. \r | |
345 | @param MCastFilterCnt Number of multicast HW MAC addresses in the new MCastFilter\r | |
346 | list. This value must be less than or equal to the \r | |
347 | MCastFilterCnt field of EFI_SIMPLE_NETWORK_MODE. \r | |
348 | This field is optional if ResetMCastFilter is TRUE.\r | |
349 | @param MCastFilter A pointer to a list of new multicast receive filter HW\r | |
350 | MAC addresses. This list will replace any existing \r | |
351 | multicast HW MAC address list. This field is optional \r | |
352 | if ResetMCastFilter is TRUE.\r | |
353 | \r | |
354 | @retval EFI_SUCCESS The multicast receive filter list was updated.\r | |
355 | @retval EFI_NOT_STARTED The network interface has not been started.\r | |
356 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r | |
357 | * This is NULL\r | |
358 | * There are bits set in Enable that are not set\r | |
359 | in Snp->Mode->ReceiveFilterMask\r | |
360 | * There are bits set in Disable that are not set\r | |
361 | in Snp->Mode->ReceiveFilterMask\r | |
362 | * Multicast is being enabled (the \r | |
363 | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST bit is \r | |
364 | set in Enable, it is not set in Disable, and \r | |
365 | ResetMCastFilter is FALSE) and MCastFilterCount\r | |
366 | is zero\r | |
367 | * Multicast is being enabled and MCastFilterCount\r | |
368 | is greater than Snp->Mode->MaxMCastFilterCount\r | |
369 | * Multicast is being enabled and MCastFilter is NULL\r | |
370 | * Multicast is being enabled and one or more of\r | |
371 | the addresses in the MCastFilter list are not\r | |
372 | valid multicast MAC addresses\r | |
373 | @retval EFI_DEVICE_ERROR One or more of the following conditions is TRUE:\r | |
374 | * The network interface has been started but has\r | |
375 | not been initialized\r | |
376 | * An unexpected error was returned by the \r | |
377 | underlying network driver or device\r | |
378 | @retval EFI_UNSUPPORTED This function is not supported by the network\r | |
379 | interface.\r | |
28db6da4 | 380 | \r |
381 | **/\r | |
382 | EFI_STATUS\r | |
383 | EFIAPI\r | |
4cda7726 | 384 | SnpUndi32ReceiveFilters (\r |
385 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
386 | IN UINT32 Enable,\r | |
387 | IN UINT32 Disable,\r | |
388 | IN BOOLEAN ResetMCastFilter,\r | |
389 | IN UINTN MCastFilterCnt, OPTIONAL\r | |
390 | IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL\r | |
28db6da4 | 391 | )\r |
392 | {\r | |
4cda7726 | 393 | SNP_DRIVER *Snp;\r |
28db6da4 | 394 | EFI_STATUS Status;\r |
395 | EFI_TPL OldTpl;\r | |
396 | \r | |
4cda7726 | 397 | if (This == NULL) {\r |
28db6da4 | 398 | return EFI_INVALID_PARAMETER;\r |
399 | }\r | |
400 | \r | |
4cda7726 | 401 | Snp = EFI_SIMPLE_NETWORK_DEV_FROM_THIS (This);\r |
28db6da4 | 402 | \r |
403 | OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r | |
404 | \r | |
4cda7726 | 405 | switch (Snp->Mode.State) {\r |
28db6da4 | 406 | case EfiSimpleNetworkInitialized:\r |
407 | break;\r | |
408 | \r | |
409 | case EfiSimpleNetworkStopped:\r | |
410 | Status = EFI_NOT_STARTED;\r | |
411 | goto ON_EXIT;\r | |
412 | \r | |
413 | default:\r | |
414 | Status = EFI_DEVICE_ERROR;\r | |
415 | goto ON_EXIT;\r | |
416 | }\r | |
417 | //\r | |
418 | // check if we are asked to enable or disable something that the UNDI\r | |
419 | // does not even support!\r | |
420 | //\r | |
4cda7726 | 421 | if (((Enable &~Snp->Mode.ReceiveFilterMask) != 0) ||\r |
422 | ((Disable &~Snp->Mode.ReceiveFilterMask) != 0)) {\r | |
28db6da4 | 423 | Status = EFI_INVALID_PARAMETER;\r |
424 | goto ON_EXIT;\r | |
425 | }\r | |
426 | \r | |
4cda7726 | 427 | if (ResetMCastFilter) {\r |
28db6da4 | 428 | \r |
4cda7726 | 429 | Disable |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST & Snp->Mode.ReceiveFilterMask;\r |
430 | MCastFilterCnt = 0;\r | |
431 | MCastFilter = NULL;\r | |
28db6da4 | 432 | } else {\r |
4cda7726 | 433 | if (MCastFilterCnt != 0) {\r |
434 | if ((MCastFilterCnt > Snp->Mode.MaxMCastFilterCount) ||\r | |
435 | (MCastFilter == NULL)) {\r | |
28db6da4 | 436 | \r |
437 | Status = EFI_INVALID_PARAMETER;\r | |
438 | goto ON_EXIT;\r | |
439 | }\r | |
440 | }\r | |
441 | }\r | |
442 | \r | |
4cda7726 | 443 | if (Enable == 0 && Disable == 0 && !ResetMCastFilter && MCastFilterCnt == 0) {\r |
28db6da4 | 444 | Status = EFI_SUCCESS;\r |
445 | goto ON_EXIT;\r | |
446 | }\r | |
447 | \r | |
4cda7726 | 448 | if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) != 0 && MCastFilterCnt == 0) {\r |
28db6da4 | 449 | Status = EFI_INVALID_PARAMETER;\r |
450 | goto ON_EXIT;\r | |
451 | }\r | |
452 | \r | |
4cda7726 | 453 | if ((Enable != 0) || (MCastFilterCnt != 0)) {\r |
454 | Status = PxeRecvFilterEnable (\r | |
455 | Snp,\r | |
456 | Enable,\r | |
457 | MCastFilterCnt,\r | |
458 | MCastFilter\r | |
459 | );\r | |
28db6da4 | 460 | \r |
461 | if (EFI_ERROR (Status)) {\r | |
462 | goto ON_EXIT;\r | |
463 | }\r | |
464 | }\r | |
465 | \r | |
4cda7726 | 466 | if ((Disable != 0) || ResetMCastFilter) {\r |
467 | Status = PxeRecvFilterDisable (Snp, Disable, ResetMCastFilter);\r | |
28db6da4 | 468 | \r |
469 | if (EFI_ERROR (Status)) {\r | |
470 | goto ON_EXIT;\r | |
471 | }\r | |
472 | }\r | |
473 | \r | |
4cda7726 | 474 | Status = PxeRecvFilterRead (Snp);\r |
28db6da4 | 475 | \r |
476 | ON_EXIT:\r | |
477 | gBS->RestoreTPL (OldTpl);\r | |
478 | \r | |
479 | return Status;\r | |
480 | }\r |